Patent Publication Number: US-2022212493-A9

Title: Passenger vehicle wheel cover

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application is a continuation of International Application No. PCT/US2019/060349, entitled “PASSENGER VEHICLE WHEEL COVER” and filed on Nov. 7, 2019, which is a continuation-in-part of U.S. application Ser. No. 16/584,203, entitled “SYSTEMS AND METHODS FOR LOCKING AND STABILIZING A WHEEL COVER ASSEMBLY” and filed on Sep. 26, 2019, which claims priority under 35 U.S.C. § 119 to U.S. Provisional Application No. 62/736,848, entitled “WHEEL COVER QUICK MOUNT” and filed on Sep. 26, 2018 and which is a continuation-in-part of and claims priority to U.S. application Ser. No. 16/477,841, entitled “WHEEL COVER QUICK MOUNT” and filed on Jul. 12, 2019, which is a National Stage Application filed under 35 U.S.C. 371 of International Application No. PCT/US2018/014071, entitled “WHEEL COVER QUICK MOUNT” and filed on Jan. 17, 2018, which is a continuation-in-part of and claims priority to U.S. Design application No. 29/626,799, entitled “Wheel Cover” and filed on Nov. 20, 2017, and to U.S. Design application No. 29/626,802, entitled “Wheel Cover” and filed on Nov. 20, 2017 and which further claims priority under 35 U.S.C. § 119 to U.S. Provisional Application No. 62/561,484, entitled “WHEEL COVER QUICK MOUNT” and filed on Sep. 21, 2017, and to U.S. Provisional Application No. 62/447,308, entitled “WHEEL COVER QUICK MOUNT” and filed Jan. 17, 2017. The present application further claims priority under 35 U.S.C. 119 to U.S. Provisional Application No. 62/757,009, entitled “WHEEL COVER QUICK MOUNT” and filed on Nov. 7, 2018. Each of these applications is incorporated by reference in its entirety herein. 
    
    
     TECHNICAL FIELD 
     Aspects of the present disclosure relate to covers for motor vehicles wheels, and more particularly to systems and methods facilitating rapid mounting of a wheel cover having optimized aerodynamics to at least a portion of a wheel, such as the hub, tire, and/or axle, without the use of tools. 
     BACKGROUND 
     Wheel covers for vehicles (e.g., heavy trucks, trailers, or the like) typically streamline and keep wheels clean from dirt, rain, or other debris. Conventionally, wheel covers are installed by removing one or more lug nuts from the studs of a hub or wheel, placing the wheel cover on the studs, and screwing the lug nuts back onto the studs. Such conventional methods necessarily involve one or more tools, increasing the complexity and duration of wheel cover installation and removal. Further, many conventional wheel covers obstruct a view of the hub of the wheel during routine inspection and maintenance, requiring the wheel cover to be completely removed. Additionally, conventional wheel covers often include aerodynamic inefficiencies and/or include a significant number of components and/or material, resulting in wasted resources due to fuel consumption, manufacturing costs, installation/removal time, and/or the like. As such, conventional wheel covers are neither cost effective nor efficient in use. It is with these issues in mind, among others, that various aspects of the present disclosure were developed. 
     SUMMARY 
     Implementations described and claimed herein address the foregoing issues by providing a wheel cover system. In one implementation, a method includes covering a wheel of a vehicle with a wheel cover assembly. The wheel has a first stud and a second stud each extending in an outward direction away from a hub. A first post of a receiver is received in a first hook of an engagement plate of a wheel cover assembly, and the first post is engaged to the first stud. A second post of the receiver is received in a second hook of the engagement plate of the wheel cover assembly, and the second post is engaged to the second stud. An inward force exerted against a wheel cover of the wheel cover assembly in an inward direction towards the hub is received. The inward force overcomes a spring bias of a spring of the receiver and translates the wheel cover assembly in the inward direction. A first rotational force rotating the wheel cover assembly in a first direction is received. The first post guides and engages the first hook, and the second post guides and engages the second hook during rotation. A first positive feedback is generated by a spring in response to the inward force and the first rotational force. The wheel cover assembly is releasably locked to the receiver by translating the wheel cover assembly in the outward direction using an outward force generated by the spring bias. The outward force provides a second positive feedback. 
     In another implementation, a wheel cover system covers a wheel of a vehicle with a wheel cover assembly. The wheel has a first stud, a second stud, a third stud, and a fourth stud in a concentric pattern and each stud extends in an outward direction away from a hub. A first post, a second post, a third post and a fourth post are engageable to the first stud, the second stud, the third stud, and the fourth stud, respectively. An engagement plate includes a first hook, a second hook, a third hook, and a fourth hook engageable with each of the first post, the second post, the third post, and the fourth post, respectively. A spring has a first hook and a second hook. The first hook is engaged to the first post, and the second hook is engaged to the second post. The spring has a spring bias configured to generate an outward force in the outward direction away from the hub at a spring engagement point. A first cap is disposed in the first upper portion of the first post, and a second cap is disposed in the second upper portion of the second post. The first post and the second post are configured to releasably engage the wheel cover assembly with the spring, the first cap, and the second cap holding the wheel cover assembly in a locked position. 
     In another implementation, a wheel cover system covers a wheel of a vehicle with a wheel cover assembly. The wheel has a first stud and a second stud each extending in an outward direction away from a hub. A first post is engageable to the first stud. The first post has a first upper portion and a first lower portion, and the first upper portion is disposed outwardly from the first lower portion. A second post is engageable to the second stud. The second post has a second upper portion and a second lower portion, and the second upper portion is disposed outwardly from the second lower portion. A spring has a first hook and a second hook. The first hook is engaged to the first post, and the second hook is engaged to the second post. The spring has a spring bias configured to generate an outward force in the outward direction away from the hub at a spring engagement point. A first cap is disposed in the first upper portion of the first post, and a second cap is disposed in the second upper portion of the second post. The first post and the second post are configured to releasably engage the wheel cover assembly with the spring, the first cap, and the second cap holding the wheel cover assembly in a locked position. 
     In another implementation, a wheel cover has an outer surface and an inner surface. The inner surface has a plate receiver. An engagement plate has a body mounted to the plate receiver, and the body extends between a peripheral edge. A first hook is defined in the peripheral edge of the body, and the first hook is configured to releasably engage a first post of a receiver. A second hook is defined in the peripheral edge of the body, and the second hook configured to releasably engage a second post of a receiver. 
     Other implementations are also described and recited herein. Further, while multiple implementations are disclosed, still other implementations of the presently disclosed technology will become apparent to those skilled in the art from the following detailed description, which shows and describes illustrative implementations of the presently disclosed technology. As will be realized, the presently disclosed technology is capable of modifications in various aspects, all without departing from the spirit and scope of the presently disclosed technology. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature and not limiting. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  illustrates an example wheel cover system. 
         FIG. 2  shows an example receiver of the wheel cover system mounted on a hub of a wheel. 
         FIGS. 3A-3C  illustrate detailed side views of an example post, an example short post, and an example long post, respectively, of a receiver. 
         FIGS. 4A-4C  are a side view of a receiver including an example spring, an isometric view of the spring, and a side view of the spring, respectively. 
         FIGS. 5A-5B  show an example wheel cover assembly and an engagement plate, respectively. 
         FIG. 6  depicts the wheel cover assembly mounted to the receiver. 
         FIG. 7  shows another example of the wheel cover assembly. 
         FIG. 8  illustrates an example engagement plate coupled to a wheel cover. 
         FIGS. 9A-B  are a side view and a detailed side view, respectively, of an example wheel cover system. 
         FIGS. 10-14  illustrate example steps for installing a wheel cover to a wheel. 
         FIG. 15  is an example post of a receiver having a square drive. 
         FIG. 16  is a top perspective view of an example wheel cover for rear wheels on a vehicle with a cover cap removed. 
         FIGS. 17A-B  are detailed views of a cover cap receiver and a cover cap, respectively. 
         FIG. 18  is a top view of an example integrated wheel cover. 
         FIGS. 19A-B  are a bottom view and isometric view, respectively, of an example backing of a wheel cover. 
         FIG. 19C  shows an example engagement plate installed onto the backing. 
         FIG. 20  is an exploded view of an example wheel cover system for a rear wheel of a vehicle. 
         FIG. 21  is an exploded view of an example wheel cover system for a front wheel of a vehicle. 
         FIG. 22  is a side view of an example post for the wheel cover system of  FIG. 21 . 
         FIGS. 23A-24B  are an isometric view, an exploded isometric view, a side view, and a top view, respectively, of a spring assembly for the wheel cover system of  FIG. 21 . 
         FIGS. 24A-24B  are a side view and a top view, respectively, of the spring assembly shown in  FIGS. 23A-23B . 
         FIGS. 25A-25B  are a top view and an isometric view, respectively, of an example engagement plate for the wheel cover system of  FIG. 21 . 
         FIGS. 26A-28B  are a top view, a top isometric view, a bottom view, a bottom isometric view, a side view, and a bottom isometric transparent view, respectively, of an example wheel cover for the wheel cover system of  FIG. 21 . 
         FIGS. 27A-27B  are a bottom view and a bottom isometric view, respectively, of the example wheel cover shown in  FIGS. 26A-26B . 
         FIGS. 28A-28B  are a side view and a bottom isometric transparent view, respectively, of the example wheel cover shown in  FIGS. 26A-26B . 
         FIGS. 29A-C  are an isometric top view, side view, and bottom view, respectively of an example cover cap for the wheel cover system of  FIG. 21 . 
         FIG. 30  illustrates example operations for installing a wheel cover assembly onto a receiver. 
         FIG. 31  illustrates example operations for removal of a wheel cover assembly from a receiver. 
         FIG. 32  show an example wheel cover system mounted on a wheel of a vehicle with the wheel cover removed. 
         FIG. 33A  illustrates an example wheel cover system mounted on a rear wheel of a vehicle. 
         FIG. 33B  illustrates an example wheel cover system mounted on a front wheel of a vehicle. 
         FIG. 34  is a top, tilted view of an example stabilizer assembly mounted on an example receiver of an example wheel cover assembly. 
         FIG. 35  is a side, tilted view of the example stabilizer assembly shown in  FIG. 34 . 
         FIG. 36  is a top, tilted view of an example locking mechanism in an unlocked orientation. 
         FIG. 37  is another top, tilted view of the example locking mechanism shown in  FIG. 36  in a locked orientation. 
         FIG. 38  is an isometric, exploded view of an example locking mechanism. 
         FIGS. 39A-B  are a detailed view of a center mechanism of the example locking mechanism shown in  FIG. 38  and a detailed view of a key of the example locking mechanism shown in  FIG. 38 , respectively. 
         FIGS. 40A-C  are a detailed bottom view of the center mechanism of the example locking mechanism shown in  FIG. 38 , a detailed top view of a receiver receptacle of the example locking mechanism shown in  FIG. 38 , and a bottom view of the center mechanism of the example locking mechanism shown in  FIG. 38 , respectively. 
         FIG. 41  is another example of a wheel cover system. 
         FIG. 42  is a detailed view a receiver and an engagement plate of the wheel cover system shown in  FIG. 41 . 
         FIG. 43  is a side view of a post of the receiver shown in  FIG. 41 . 
         FIG. 44  is a side, tilted view of a plurality of posts and a spring of the receiver shown in  FIG. 41  installed on an example rim. 
         FIG. 45  is a front, tilted view of the engagement plate engaged to the plurality of posts shown in  FIG. 41 . 
         FIG. 46  is a side view of the wheel cover system shown in  FIG. 41 . 
         FIG. 47  is a front, tilted view of a wheel cover of the wheel cover system shown in  FIG. 41  disposed on the rim shown in  FIG. 44 . 
         FIG. 48  illustrates example operations for installing a wheel cover assembly onto a receiver. 
         FIG. 49  illustrates example operations for removal of a wheel cover assembly from a receiver. 
         FIG. 50A  shows a side perspective view of a receiver assembly including the receiver and engagement plate. 
         FIG. 50B  illustrates a front perspective view of the receiver assembly with a cap of the wheel cover removed for clarity. 
         FIG. 50C  illustrates a back perspective view of the receiver assembly. 
         FIG. 51  shows a front perspective view of the wheel cover system mounted on a wheel rim. 
         FIG. 52  shows a back perspective view of the wheel cover system mounted on a wheel rim. 
         FIG. 53  illustrates a back perspective view of the wheel cover system. 
         FIGS. 54A-54E  show isometric, side, front, back, and top views, respectively, of the engagement plate. 
         FIGS. 55A-55D  illustrate isometric, side, back, and front views, respectively, of the wheel cover. 
         FIG. 56A  shows a back view of the wheel cover system with certain features removed for clarity. 
         FIG. 56B  shows a detailed side perspective view of a receiver portion of the wheel cover with the other features of the receiver removed for clarity. 
         FIGS. 57A-57D  show top, bottom, left side, and right side views, respectively, of the wheel cover system. 
     
    
    
     DETAILED DESCRIPTION 
     Aspects of the present disclosure involve systems and methods facilitating rapid mounting of a wheel cover having optimized aerodynamics to at least a portion of a wheel, such as the hub, tire, and/or axle, without the use of tools. As described herein, the presently disclosed technology provides a wheel cover system that is low cost, lightweight, durable, easily-installed, low maintenance, and provides optimized aerodynamics resulting in fuel cost savings. More particularly, the wheel cover system provides an aerodynamic shape generating an optimized miles per gallon of fuel savings for a vehicle. Further, the wheel cover system is lightweight with minimal parts and can be completely installed in a minute or less with routine inspections performable in seconds. The wheel cover system may be customized for a front wheel addressing the paddle-wheel effect of the vehicle&#39;s front wheel studs. Other advantages and features of the presently disclosed technology will be apparent from the present disclosure. 
     In one aspect, the wheel cover system includes a receiver comprising a spring installed onto a plurality of posts configured to receive a wheel cover. The wheel cover includes an engagement plate with hooks and grooves. To install the wheel cover, the wheel cover is aligned with the posts and spring until larger grooves are positioned near each post. An inward force is exerted onto the wheel cover to compress the spring, and the wheel cover is twisted to engage the smaller grooves around the posts. When the wheel cover is released, the spring translates the wheel cover outwards, thereby providing a positive feedback to the installer and locking the engagement plate against the caps of each post. The spring bias in combination with a change in diameters of radius cuts in the engagement plate and steps in the posts prevent the wheel cover from disengaging from the receiver by rotating clockwise or counter-clockwise. Once engaged, a cap may be removed from the wheel cover for quick routine maintenance of the wheel. To remove the wheel cover, the inward force is applied, overcoming the spring bias, and the wheel cover is rotated until disengaged from the receiver. 
     The wheel cover system can also include additional accessories to aid in stabilization of the posts. In one example, the stabilization assembly can include a plurality of stabilization bars. Each of the bars includes a first open end and a second open end and each end operable to receive a portion of a post. The bars are positioned between a pair of posts where a first open end of one bar contacts the same post as a second open end of another bar. The first open end and the second open end are fastened together to create an interference between the bars and the post, such that vibration experienced at the post is transferred to the bars, thereby stabilizing the post. 
     The wheel cover system can also include a locking mechanism which can, for example, prevent theft of the wheel cover system. The locking mechanism is installed onto an engagement plate and hidden behind a wheel cover, with a keyway accessible at the wheel cover to engage the locking mechanism. The locking mechanism includes a pair of bars coupled to a center mechanism and secured to the center mechanism by a receiver receptacle. When the locking mechanism is rotated in one orientation (e.g., counter-clockwise), the pair of bars are retracted towards the center mechanism. When the locking mechanism is rotated in a second orientation (e.g., clockwise), the pair of bars are pushed away from the center mechanism and are disposed adjacent to a top surface of a pair of posts. The pair of bars obstruct a distance between the pair of posts and the wheel cover required to push the wheel cover down for removal disassembly, thereby preventing the wheel cover from being removed from the wheel. 
     In another aspect, the wheel cover system includes a receiver comprising a spring installed onto a plurality of posts configured to receive a wheel cover. The wheel cover includes an engagement plate with openings of varying diameters. To install the wheel cover, the wheel cover is aligned with the posts and spring until larger openings are positioned near each post. An inward force is exerted onto the wheel cover to compress the spring, and the wheel cover is twisted to engage the smaller openings around the posts. When the wheel cover is released, the spring translates the wheel cover outwards, thereby providing a positive feedback to the installer and locking the engagement plate against the caps of each post. The spring bias in combination with a change in diameters of the openings in the engagement plate and steps in the posts prevent the wheel cover from disengaging from the receiver by rotating clockwise or counter-clockwise. Once engaged, a cap may be removed from the wheel cover for quick routine maintenance of the wheel. To remove the wheel cover, the inward force is applied, overcoming the spring bias, and the wheel cover is rotated until disengaged from the receiver. 
     To begin a detailed description of an example wheel cover system  100 , reference is made to  FIG. 1 . In one implementation, the wheel cover system  100  includes a receiver  104  configured to receive and engage a wheel cover assembly  102 . Stated differently, the cover assembly  102  is configured to couple a wheel cover to a hub of a wheel via the receiver  104 . The cover assembly  102  may be multiple pieces coupled to each other or one integral, singular piece. 
     As can be understood from  FIGS. 2-4C , in one implementation, the receiver  104  is installed onto a plurality of studs  202  of a hub  200 . The receiver  104  includes a spring  204  connected to a plurality of posts  206 . As shown in  FIG. 2 , each of the posts  206  is engaged to and extends outwardly from one of the studs  202 . A spacer  210  and a lug nut  208  may also be installed on each of the studs  202 , providing additional clearance height to each of the posts  206 . The spacer  210  and the lug nut  208  may be disposed proximal to the hub  200  from the post  206 . It will be appreciated that any number of posts  206  may be included depending on arrangement of the wheel cover assembly  102  and the studs  202 . For example, the receiver  104  may include four posts  206  arranged in two diametrically opposed pairs, as shown in  FIG. 2 . In one implementation, a first pair of diametrically opposed posts  206  is circumferentially separated from a second pair of diametrically opposed posts  206  by two pairs of diametrically opposed uncovered studs  202 . 
     In one implementation, the spring  204  is mounted onto the first pair of diametrically opposed posts  206 , as shown in  FIG. 2 . It will be appreciated that additional springs  204  and/or mounting orientations are contemplated. The spring  204  has a spring bias for releasably locking the wheel cover assembly  102  onto the posts  206 . More particularly, to install the wheel cover, a force is exerted against the spring, and once the force is strong enough to overcome the spring bias, the wheel cover assembly  102  may be rotated until engaged to the posts  206 . Once the posts  206  stop the rotation of the wheel cover assembly  102 , the force is desisted resulting in the spring bias of the spring  204  causing the wheel cover assembly  102  to translate in a direction opposite the application of the force and lock in place. The translation of the wheel cover assembly  102  generates a positive feedback in the form of a small jolt or similar tactile sensation confirming the wheel cover assembly  102  is secured to the receiver  104 . 
     Because the posts  206  are engaged to and extend from existing studs  202  of the hub  200  and the spring  204  does not impede visual access to the hub  200 , the receiver  104  provides generally unobstructed views of the hub  200 . Such an arrangement provides many advantages, including without limitation, performance of routine maintenance without removal of the receiver  104 ; ability to mount additional components to the hub  200 , such as a hub meter; and the hub  200  can include unobstructed signage or a viewing screen showing a message, such as an advertisement, that is projected onto or otherwise visible on the wheel cover. 
     In one implementation, the receiver  104  falls within the circumference of the center of the wheel when mounted onto the hub  200 , allowing for removal of the tire or other portions of the wheel without the removal of the receiver  104 . The receiver  104  may also be installed onto a wheel such that the cover assembly  102  would cover the lug nuts. Moreover, the receiver  104  does not require any evidentiary mounting mechanism such as in conventional systems, allowing the cover assembly  102  to obtain optimized aerodynamic shape. In one implementation, the posts  206  are mounted to a plate to permit the use of the wheel cover system  100  on trailer hubs to cover the wheels. The plate would permit hubs that do not have significant mounting points, such as the studs  202 , to install the plate with the posts  206  for mounting the cover assembly  102 . In other implementations, the posts  206  are mounted onto other components. For example, the posts  206  can be mounted to an automatic tire inflating device, such as the Aperia Halo, or the like. The inflating device bolts onto a wheel and attaches to the air intake of the wheel to monitor and automatically inflate the tire, as needed. The device extends tire life, increases miles per gallon, and prevents blowouts due to underinflated tires. 
     As can be understood from  FIGS. 3A-3C , the posts  206  may have a variety of shapes, sizes, and features. For example, the post  206  may have a short profile  320  or a long profile  322 . In one implementation, the post  206  includes an upper portion  300  and a lower portion  302 . The lower portion  302  includes a stem  324  having a stem surface  326 . The upper portion  300  begins with a first cap  304  disposed on the end of the post  206  having a top surface  328  and configured to prevent the cover assembly  102  from translating outwardly in a direction away from the hub  200 , thereby disengaging from the post  206 . The first cap  304  also has a cap bottom surface  316  configured to contact the cover assembly  102  when engaged with a plate  500 . A taper  318  guides the cover assembly  102  into position during installation and removal based on an applied force and the spring bias of the spring  204 . The post  206  further includes a hook step  306  and a neck step  308 . In one implementation, the hook step  306  has a larger circumference than the neck step  308 . A second  310  and a third  314  cap frame a spring step  312 . The spring step  312  is configured to receive and engaged the spring  204 . In one implementation, the second  310  and the third  314  caps each have an equal circumference larger than a circumference of the spring step  312 . The lower portion  302  includes a threaded opening configured to receive the stud  202 , enabling the post  206  to be rotationally advanced onto the stud  202 . An adhesive, such as Loctite, welding, and/or other attachment mechanisms may be used to further secure the post  206  to the stud  202 . 
     In one implementation, the first  304 , second  310 , and third  314  caps have a circumference equal to each other. However, the circumferences may differ from each other or two circumferences may be equal to each other while a third circumference is different. Additionally, the posts  206  may be manufactured with varying lengths to accommodate different wheel dimensions. For example, a front wheel of a semi-trailer truck may have the posts  206  with the short profile  320 , as shown in  FIG. 3B , while a rear wheel may have the posts  206  with the long profile  322 , shown in  FIG. 3C . The long profile  322  can accommodate a greater offset for rear dual-wheels. The posts  206  may be made of a hard material such as steel, aluminum, plastic, thermoplastic, and/or the like. In an example implementation, the posts  206  are manufactured from polyoxymethylene. After or while the posts  206  are installed onto the hub  200 , the spring  204  may be also installed. 
     Turning to  FIGS. 4A-4C , in one implementation, the spring  204  includes a spring engagement point  400  where the spring  204  meets the cover assembly  102  during cover installation. The spring bias of the spring  204  may be configured to generate an outward force concentrated at the spring engagement point  400 . The spring  204  also includes a plurality of spring hooks  402 . In one example, the spring  204  has two hooks  402  in a semi-circular shape, as shown in  FIG. 4B . The hooks  402  extend linearly away from each other, then bend and increase in angle until they reach the engagement point  400 . The combination of the semi-circular hooks  402  and flexibility of the spring  204  allow the spring hooks  402  to hook around and engage two posts  206  at the spring step  312  of each post  206 , as shown in  FIG. 4A . However, the spring  204  can be mounted onto more than two posts  206  or onto one post  206  and bent outwards to provide the spring bias force to maintain the plate  500  in place. The receiver  104  may be permanently affixed or removably engaged to the hub  200 , with the wheel cover assembly  102  removably engageable to the receiver  104 . 
     For a detailed description of the wheel cover assembly  102 , reference is made to  FIGS. 5A-5B . In one implementation, the cover assembly  102  includes an engagement plate  500  and a cover back  502 , illustrated as a ring in  FIG. 5A . The ring is merely for illustrative purposes to demonstrate the connection of a wheel cover to the engagement plate  500 . The cover back  502  may be coupled to the plate  500  with screws  506  that extend through a plurality of openings  504  in the plate  500  and the cover back  502 . Although the plate  500  and the cover back  502  are shown as two separate components attached via screws  506 , the plate  500  and the cover back  502  can be one integrated unit or attached via other means. The cover back  502  can also be integrated into the wheel cover  800 . 
     The plate  500  may include a body with radius cuts of different diameters to engage the steps in the posts  206  having different diameters. In other words, the plate  500  positively engages the plurality of posts  206  by a precise mating of the radiused plate  500  to the radiused plurality of posts  206 . The plate  500  includes a plurality of hooks  508  disposed about and defined in a peripheral edge of the body. The hooks  508  may be oriented relative to a center hole  524 . In one implementation, the plate  500  has four hooks  508 ; however, there can be more or less than four hooks  508  and the plate  500  can be any shape including, but not limited to, a rectangle, octagon, oval, or circle, as well as having various ornamental features. Furthermore, other wheel end elements providing quick detachment to expose the hub  200  and other wheel components such as, but not limited to, a hub odometer or tire inflation device can be mounted onto the plate  500  in addition to, or in place of, a wheel cover. 
     In one implementation, the hook  508  includes a hook surface  522  and a hook edge  510  defining a hook receiving area  520 . The hook receiving area  520  is adapted to snugly fit around the hook step  306  because the hook receiving area  520  has a radius equal to or substantially equal to a radius of the hook step  306 . Adjacent to the hook edge  510  is a neck edge  512  which, together defines a neck receiving area  518 . The neck receiving area  518  allows the post  206  to pass through at the neck step  308  during cover installation and prevents the plate  500  from rotating when the plate  500  is fully engaged on the post  206 . Adjacent to the neck edge  512  is a cap edge  514  defining a cap receiving area  516 . The cap receiving area  516  is adapted such that the first cap  304  can outwardly pass through the cap receiving area  516  at the beginning of installation because the cap receiving area  516  has a radius equal to or greater than the radius of the first cap  304 . The cap receiving area  516  and the hook receiving area  520  may be formed as a first groove and a second groove, respectively, wherein the first groove is larger than the second groove. The plate  500  may be positioned 3.5″ from dead center of a typical 8-bolt hub assembly such that the radius from the center of the plate to engagement of the post  206  is 3.5″. The plate  500  can be made of a hard material such as, but not limited to, steel, aluminum, plastic, thermoplastic, or the like. In one implementation, the plate  500  is manufactured from a 0.060″ thick sheet of 304 stainless steel. 
     Referring to  FIGS. 6-7 , in one implementation, a plurality of spacers  600  are configured to maintain a distance between the cover back  502  and the plate  500 , such that when the wheel cover assembly  102  is installed onto the receiver  104  and the cover back  502  contacts the first caps  304 , the plate  500  drops into position for installation. Although the spacers  600  are shown as separate components, they may be integrated into the cover back  502  or the plate  500 . In one example implementation, shown in  FIG. 7 , four spacers  600  are positioned adjacent four hooks  508  and posts  206 . The four hooks  508  and corresponding four posts  206  are positioned equidistance around a center circumference of the cover back  502 . The four screws  506  and corresponding four spacers  600  are positioned equidistance on the same center circumference and shifted clockwise from the hooks  508  to prevent interference with the posts  206 . 
       FIG. 8  illustrates a high level view of the wheel cover system  100  with a wheel cover  800 . The wheel cover  800  can be disc or domed shaped with various ornamental features and extends over the receiver  104  and plate  500 . The wheel cover  800  entirely covers the remainder of the wheel cover system  100  components, such as the receiver  104  and the plate  500 , as well as the internal components of the wheel, including the hub  200 . The wheel cover  800  may also include a thicker portion on the perimeter of the disc, which may provide more stability at the edge as well as prevent debris from entering the space behind the wheel cover  800 . The wheel cover  800  can be coupled to the plate  500  in a variety of ways. In one example, shown in  FIGS. 9A-B , the wheel cover  800  includes an attachment portion  900  and an opening where the screw  506  passes through and attaches the wheel cover  800  to the plate  500 .  FIGS. 9A-B  further illustrate the cover assembly  102 , complete with the cover  800 , mounted to an example post  206  of the receiver  104 . 
       FIGS. 10-14  illustrate an example installation of the cover assembly  102  onto the receiver  104 . In one implementation, the cover assembly  102  is positioned over the receiver  104 , such that the plate  500  is facing the posts  206 . The first groove, or cap receiving area  516 , is positioned over the posts  206  and the cover assembly  102  is pushed inwardly in a direction towards the hub  200  and rotated in a first direction, for example, clockwise. The spring bias of the spring  204  causes the cover assembly  102  to jolt outwardly providing positive feedback and locking the cover assembly  102  in place on the posts  206 . The cover assembly  102  is thereby preventing from rotating counter-clockwise or clockwise. The only way to remove or release the cover assembly  102  is the application of a force on the cover assembly  102  in direction inwardly towards the hub  200  and rotation of the cover assembly  102  in a second direction opposite the first direction (e.g., counterclockwise). The cover assembly  102  is rotated until disengaged from the posts  206 , and the spring bias of the spring  204  translates the cover assembly  102  in a direction outwardly from the hub  200 , releasing the cover assembly  102  from the receive 104. 
     In one implementation, the wheel cover system  100  provides a positive feedback loop to notify a user of proper installation, as the user cannot see the parts during installation due to the wheel cover  800 . The feedback loop includes, but is not limited to, audial, tactile, visual, and/or other feedback. The audial feedback may be generated by the plate  500  hitting the first caps of each post  206 . The tactical feedback may come in the form of a jolt caused by the spring bias of the spring  204  translating the plate  500  outwards, enabling a user to feel the cover assembly  102  move against his hand. The visual feedback may be provided in how the wheel cover  800  is oriented relative to the wheel. 
     As shown in  FIG. 10 , in one implementation, the cover assembly  102  is positioned such that the plate  500  is centered on the spring engagement point  400 , shown in  FIG. 4 , and the cover back  502  is facing outwards. The cap receiving area  516  is aligned with the first cap  304 . When the cover assembly  102  receives the application of an inward force, for example from a user pushing on the cover assembly  102 , the cover assembly  102  compresses the spring  204 , and the cover assembly  102  moves inwardly in a direction towards the hub  200 , as indicated by the arrow shown in  FIG. 10 . 
     Turning to  FIG. 11 , after the cover assembly  102  is translated inwardly through the application of the inward force, the first caps  304  abuts the cover back  502 , preventing the cover assembly  102  from moving further inward. The spacers  600  distance the cover back  502  and the plate  500  such that the plate  500  is dropped into the same plane as the neck step  308 . The spacers  600  and the cover back  502  save time and effort as a user can simply push the cover back  502  until the cover back  502  contacts the first caps  304 . The cover assembly  102  is then rotated in the first direction (e.g., clockwise), as shown by the arrows. 
     As can be understood from  FIG. 12 , while the cover assembly  102  is rotating as indicated by the arrow, the neck receiving area  518  receives and guides the neck step  308  into the hook receiving area  520 . When the neck step  308  is in the hook receiving area  520 , as shown in  FIG. 13 , the inward force on the cover assembly  102  is desisted, resulting in the spring bias of the spring  204  exerting an outward force against the cover assembly  102  and translating the cover assembly  102  outwards, as shown by the arrow in  FIG. 13 . In an example implementation, the outward force generated by the spring bias of the spring  204  is approximately 20 lb/inch. 
       FIG. 14  illustrates the engagement plate  500  engaged to the posts  206 . In one implementation, the hook surface  522  is flush against the cap bottom surface  316  and the hook step  306  is positioned in the hook receiving area  520 . Because the combination of the width of the neck receiving area  518  being less than the diameter of the hook step  306  and the outward force provided by the spring bias of the spring  204 , the hook step  306  cannot rotate out of the hook receiving area  520 , thus preventing the plate  500  from rotating. In other words, the circumference of the hook receiving area  520  is about the same as the circumference of the hook step  306 , both of which are larger than the distance formed by the neck receiving area  518 , thus preventing the plate  500  from rotating. The spring  204  continually exerts an outward positive force against the plate  500 , which together with the first caps  304 , translationally and rotationally lock the plate  500 . In other words, the circumference of the engaging plate  500  in the secondary or locking position of the plate  500 , when displaced outwards with the force of the spring  204 , is dimensioned such that the plate  500  cannot rotate as it is more than half of the diameter of the stud step with which it engages. Furthermore, if the cover assembly  102  is secured on at least one post  206 , the surface  316  is engaging the entire post  206 . One post  206  can provide sufficient engagement area to hold the cover assembly  102  in position. 
     The various implementations described herein may have several additional features. For example,  FIG. 15  illustrates the post  206  having a driver opening  1500  extending into the first cap  304 . The driver opening  1500  is configured to receive a driver tool, such as a screw driver, for example, to drive the post  206  into the hub  200 . The driver  1500  may be shaped to be a hex, Phillips, slot, triangle, or the like. In an example implementation, the driver  1500  is a half-inch square driver. The driver  1500  provides an alternatives means to couple the post  206  to the hub and utilizes a driver instead of a wrench, for example. 
     Furthermore, the wheel cover  800  may also have additional features.  FIG. 16  illustrates the wheel cover  800  having a center opening  1600  accommodating a plurality of couplers  1700 , shown in detail in  FIG. 17A . The plurality of couplers  1700  are configured to couple the wheel cover  800  to the plate  500 . In an example implementation, shown in  FIG. 17A , the center opening  1600  includes an indented ring  1702  broken into four sections by the plurality of couplers  1700 , wherein the plurality of couplers  1700  have an opening sized for a screw thread to past through. The plurality of screws  1704  couple the wheel cover  800  to the plate  500 . In other examples, the wheel cover  800  can be coupled to the plate  500  in other ways, including, but not limited to, using adhesion, welding, rivets, or the like. Further, the wheel cover  800  and the plate  500  can be one unitary piece. 
     The indented ring  1702  may also be separated into sections by a plurality of cover cap receivers  1706  adjacent to each plurality of couplers  1700 . The plurality of cover cap receivers  1706  are configured to receive a cover cap tab  1708 , shown in  FIG. 17B , of a cover cap  1710 . In an example implementation, each cover cap receiver  1706  is a slotted opening configured to receive each cover cap tab  1708 . The cover cap receivers  1706  and cover cap tabs  1708  lock the cover cap  1710  to the wheel cover  800  via a snap fit. In another example, the cover cap  1710  may be attached via other mechanical mechanisms or integrated into the wheel cover  800 , such that the cover cap  1710  and the wheel cover  800  are one piece. In one example, shown in  FIG. 18 , the cover  1800  is one integrated piece. Furthermore, the cover cap  1710 , wheel cover  800 , and the plate  500  may be one piece as well. 
     In one implementation, the cover cap  1710  encloses the center opening  1600 , creating a smooth surface on the wheel cover  800 , which may contribute to aerodynamic efficiency of the wheel cover system  100 . The wheel cover  800  or integrated cover  1800  may be covered in a wrap to display an image or have an unobstructed communicative display. The wheel cover  800  completely seals and hides the remainder of the wheel cover system  100  and the inner wheel components, including the hub  200 , from view, while providing protection from dirt and debris. 
     For an example of the wheel cover system  100  configured for mounting to a rear wheel of a vehicle, reference is made to  FIGS. 19A-20 . In one implementation, the plate  500  attaches to a plate receiver  1900  via screws, adhesion, rivets, or the like. Raised portions of the plate receiver  1900  can be seen in  FIG. 19B . In one implementation, the plate  500  is screwed into the plate receiver  1900  with a plurality of screws that screw into a plurality of threaded openings  1902  in the plate receiver  1900 . Each of a plurality of curved flanges  1904  follows a portion of the perimeter of each cap receiving area  516 , as shown in  FIG. 19C , which allows the cap  304  of the post  206  to pass through the cap receiving area  516 . 
     In the illustrated example shown in  FIG. 20 , a standard 8 bolt hub assembly is shown with  8  studs  202  extending outwardly from the hub  200 . In the same example, four long posts  322  will be engaged to every other stud  202 , such that a free stud  202  is positioned between each post  322 . In other examples, more or less than four posts  322  may be used and the posts  322  may be installed with any pattern, such as all four posts  322  adjacent to each other, two posts  322  adjacent to each other, or the like. As previously mentioned, an adhesive, such as Loctite, or other attachment mechanism may be used to secure the posts  322  onto the studs  202 . The spring  204  is then installed onto two posts  322 . The plate  500  may be attached to the wheel cover  800  or integrated into the wheel cover  800  as one piece. The cover assembly  102  may then be removably installed onto the posts  322 . 
       FIGS. 21-29C  illustrate an example of the wheel cover system  100  configured for mounting to a front wheel of a vehicle. Contrary to a rear wheel, a standard front axle may include 10 lug nuts deeply recessed within the wheel. To account for these differences, in one implementation, the wheel cover system  100  includes the plurality of posts  206  with the short profile  320 , the spring  204  with a plurality of limbs, and a modified plate  500  and wheel cover  800 . 
     As shown in  FIG. 22 , in one implementation, each of the posts  206  has a first cap  304  disposed on an upper portion  300  of the post and a second cap  310  and a third cap  314  to frame a spring step  312 . Each of the plurality of posts  206  may have a threaded opening on the lower portion  302  configured to receive a lug nut of the wheel, which allows the post  206  to screw onto the lug nut. In one example implementation, five posts  206  are screwed onto the lug nuts of a front axle. The plurality of posts  206  are configured to receive and hold the multi-limb spring  204 . 
     Referring to  FIGS. 23A-B  and  FIGS. 24A-B , in one implementation, the spring  204  includes a plurality of spring limbs  2312  each extending from a spring cap  2304  and having the spring hook  402 . The amount of spring limbs  2312  and spring hooks  402  depends on the amount of lug nuts of the wheel. In one example implementation, the spring  204  has five spring limbs  2312  extending from the spring cap  2304 . Each of the spring hooks  402  is configured to couple the spring  204  to the plurality of posts  206 . The spring cap  2304  includes a spring cap hood  2300  and a spring cap base  2302 . The spring cap hood  2300  has a plurality of grooves  2306  configured to receive an end  2310  of each spring limb  2312  opposite another end having the spring hook  402 . Similarly, the spring cap base  2302  includes a second plurality of grooves  2308  configured to receive the end of each spring limb  2312 . The spring cap hood  2300  and the spring cap base  2302  can be coupled to each other via adhesion, screws, rivets, snap-fit, welding, or the like. The spring cap  2304  may double as the spring engagement point  400  and a known point of contact during installation in the feedback loop. A contour  2500  of the plate  500 , shown in  FIGS. 25A-B  can receive the spring engagement point  400 , allowing a user to feel that the wheel cover  800  is centered. 
     In one implementation, the plate  500  includes radius cuts of different diameters to engage the steps having different diameters in the plurality of posts  206 . In other words, the plate  500  positively engages the plurality of posts  206  by a precise mating of the radiused plate  500  to the radiused plurality of posts  206 . The plate  500  includes a body with a plurality of hooks  508  having a hook receiving area  520 , neck receiving area  518 , and a cap receiving area  516 . The plate  500  may also include a plurality of openings  2500  to reduce weight and material. In one example implementation, the plate  500  has five hooks  508  protruding from the circumference of the body of the plate  500 . The plate  500  may also have five openings  504  and five corresponding screws  506 . 
     Turning to  FIGS. 26-29C , in one implementation, the wheel cover  800  includes a center opening  1600  and a plurality of couplers  1700  configured to receive the plate  500 . The wheel cover  800  may also include a plurality of cap cover receivers  1706  configured to receive a plurality of cover cap tabs  1708 , shown in  FIGS. 29A-C . The plurality of couplers  1700  and the plurality of cap cover receivers  1706  are positioned in an indented ring  1702 , shown more clearly in  FIG. 26B . Turning to a bottom view of the alternative wheel cover  800 , reference is made to  FIGS. 27A-B . 
     The bottom portion of the wheel cover  800  includes a plate receiver  1900  having a plurality of threaded openings  1902  configured to receive a plurality of screws  1704 . The plurality of threaded openings  1902  protrude from the indented ring  1702  and may provide further clearance for the plate  500  to couple to the wheel cover  800 . The plate  500  and the wheel cover  800  may be coupled to each other by adhesion, screws, rivets, snap and fit, or the like. The plate  500  and the wheel cover  800  can also be one unit and manufactured via injection molding or machining, for example. 
     As illustrated in  FIG. 28A , in one implementation, the wheel cover  800  includes a planar surface about a center portion  2800  and a side surface that angles in a direction radially outwardly from the center  2800  slopes away from the planar surface towards an edge  2802 . The wheel cover  800  can be various shapes with a variety of ornamental features. The wheel cover  800  can be injection molded and the edges can be ground. The center opening  1600  can be covered with a cover cap  1710  to provide a smooth exterior surface. The cover cap  1710 , shown in more detail in  FIGS. 29A-C  includes a plurality of cover cap tabs  1708  for removably engaging the wheel cover  800  to cover the center opening  1600 , as described herein. In one implementation, the cover cap  1710  has five cover cap tabs  1708 . The cover cap  1710  is removable from the wheel cover  800 , permitting routine inspection and maintenance of the inner components of the wheel and wheel cover system  100  without removing the wheel cover  800 . 
     As illustrated in  FIG. 21 , the cover cap  1710  may snap onto the center opening of the wheel cover  800 . The plate  500  can be screwed onto the bottom of the wheel cover  800 , which together makes up the wheel cover assembly  102 . In one example, five alternative posts  206  can be screwed onto five alternating lug nuts of a front axle. The spring  204  having five spring limbs  2312  can be mounted onto the posts  206 , which together makes up the receiver  104 . The wheel cover assembly  102  can then be installed onto the receiver  104  as described herein. 
       FIG. 30  illustrates example operations  3000  for installing a wheel cover assembly onto a receiver. An operation  3002  positions a hook of an engagement plate of a cover assembly over a post of the receiver. An operation  3004  receives an inward force overcoming a spring bias of a spring of the receiver. An operation  3006  receives a rotational force in a first rotational direction (e.g., clockwise) guiding the hook about the post. An operation  3008  generates a first positive feedback in response to the rotational force and the inward force. In one implementation, the first positive feedback is generated in response to contact between the post and the engagement plate, preventing further translational movement in an inward direction and rotational movement in the first rotational direction. An operation  3010  translates the wheel cover assembly outwards in connection with a second positive feedback generated by the spring bias of the spring. The outward translation locks the wheel cover assembly in position on the receiver. 
       FIG. 31  illustrates example operations  3100  for removal of a wheel cover assembly from a receiver. An operation  3102  receives an inward force on the wheel cover assembly overcoming a spring bias of a spring of the receiver. An operation  3104  receives a rotational force in a rotational direction (e.g., counterclockwise). An operation  3106  disengages a groove of an engagement plate of the wheel cover assembly from a post of the receiver using the inward and rotational forces. An operation  3108  releases the wheel cover assembly from the receiver using the spring bias of the spring. In other words, the spring bias of the spring translates the wheel cover in an outward direction, releasing it from the receiver. 
       FIG. 32  shows an example wheel  50  with the receiver  104  of the wheel cover system  100  mounted to the hub  200  and the wheel cover  800  of the wheel cover assembly  102  shown removed.  FIGS. 33A-B  illustrate examples of the wheel cover  800  mounted to a rear wheel and front wheel, respectively, of a vehicle, such as a truck. 
     Turning to  FIG. 34 , a top, tilted view of an example stabilizer assembly  3400  mounted on the receiver  104  of the example wheel cover assembly  102  is shown. The stabilizer assembly  3400  includes a plurality of bars  3410 . In the illustrated example, the plurality of bars  3410  includes four bars, although the assembly  3400  can include less than four bars or more than four bars. In the illustrated example, each of the plurality of bars  3410  is generally crescent shaped with a first end  3412  and a second end  3414  opposite the first end  3412 . In another example, the portion extending between the first end  3412  and the second end  3414  is straight. The second end  3414  is also a mirror image of the first end  3412 , though the second end  3414  can be shaped differently than the first end  3412  in other examples. In the illustrated example, both the first end  3412  and the second end  3414  include a first transition portion  3416  and a second transition portion  3418 , respectively, tapering from the bar  3410  to an open jaw. 
     Each of the jaws includes a seat having a cylindrical surface  3422 . The open cylindrical surface  3422  includes an arc having a radius substantially equal to a radius of the post  206 , such that the first end  3412  and second end  3414  are substantially flush when in contact with the post  206 . In one example, the cylindrical surface  3422  of each of the first end  3412  and the second end  3414  are hex shaped to compliment and receive a hex portion  301  of the post  206 , though the surface  3422  can be other shapes or forms. In another example, the cylindrical surface  3422  has ridges. The cylindrical surface  3422  may also be textured. Each of the plurality of bars  3410  has a first aperture  3424  and a second aperture  3426  extending through the bar  3410  at the first transition portion  3416  and the second transition portion  3418 , respectively to receive a fastener  3428 , discussed in more detail below. Each of the plurality of bars  3410  can be made from a solid material such as a metal, plastic, or the like. 
       FIG. 35  is a side, tilted view of the example stabilizer assembly  3400  shown in  FIG. 34 . During assembly, each of the plurality of bars  3410  is placed between two adjacent posts  206 , with the first end  3412  contacting one of the posts  206  and the second end  3414  contacting another one of the posts  206 . In one example, a first end of a first bar contacts one half of the post while a second end of a second bar contacts the other half of the post. The hex shaped cylindrical surface  3422  allows the first end  3412  and the second end  3414  to simply snap onto the hex portion  301  of the post  206 , such that a bar can be snapped onto two posts and held in place without additional aid. In other words, the first end  3412  or the second end  3414  engage with the hex portion  301  of the post  206  to positively lock the first end  3412  or the second end  3414  to the post  206 . The post  206  may also be slightly rotated to aid the bar in snapping onto the hex portion  301 . Further, the hex shaped surface  3422  can provide increased friction for the first end  3412  and the second end  3414  to engage the hex portion  301  of the post  206 . In the illustrated example, four bars capture the hex portion  301  of each of the four posts and when viewed from above, forms a circle, though more than four or less than four bars may be used in other examples. The fastener  3428  couples the first end  3412  of the first bar  3410  to the second end  3414  of the second bar  3410 . The fastener  3428  can be a hose clamp, cable ties, or the like. In one example, the fastener  3428  is a stainless steel clip. In the illustrated example, the fastener  3428  is a zip-tie which is threaded through the first aperture  3424  of the first bar  3410  and through the second aperture  3426  of the second bar  3410  and tightened such that the first end  3412  of the first bar  3410  and the second end  3414  of the second bar  3410  contact the stem surface  326  and substantially wrap around a circumference of the post  206  at the hex portion  301 . 
     The fastener  3428  exerts a force radially inward against the first end  3412  of the first bar  3410  and the second end  3414  of the second bar  3410 , which creates an interference fit between the first end  3412  and the second end  3414  and the post  206 . Stated differently, the fastener  3428  pushes the first end  3412  and the second end  3414  towards the post  206 , capturing the post  206  between the first end  3412  and the second end  3414  and creating a press or friction fit between the first end  3412  and the second end  3414  and the post  206 . The interference fit prevent the posts from loosening, as well as provides stability to the post as they remain firmly attached. In more detail, when the vehicle is in motion and produces vibrations, the vibrations will be directed to the stability bars instead from the posts, which prevent the posts from becoming loose due to vibrations. 
     In another example not shown, the first end and the second end can each include a pair of opposing apertures, wherein the pair of opposing apertures align with each other. A pair of nuts and bolts can be fastened through each of the aligned pair of opposing apertures and tightened until the interference fit is produced. 
     Turning to  FIGS. 36-38 , a top, tilted view of an example locking mechanism  3600  in an unlocked orientation and a locked orientation and an isometric, exploded view of another example locking mechanism  3600 , respectively, are illustrated. The locking mechanism  3600  is positioned on a center of the plate  500  and essentially inhibits the wheel cover  800  from being pushed inward, thus preventing the wheel cover  800  from being rotated and removed from the plate  500 . Though the wheel cover  800  is shown transparent, the wheel cover  800  can be opaque, which can advantageously hide the mechanism of the locking mechanism  3600 . The locking mechanism  3600  includes a center mechanism  3612  that is generally cylindrical shaped and includes a first surface  3610  and a second surface  3638 , shown in  FIG. 40A , opposite the first surface  3612 . The locking mechanism  3600  includes a pair of bars  3618  coupled to the center mechanism  3612  and secured to the center mechanism  3612  by a receiver receptacle  3626 . 
     As shown in  FIGS. 39A-B , a detailed view of a keyway  3616  disposed on the first surface  3610  of the center mechanism  3612  and a corresponding key  3618  are shown, respectively. The keyway  3616  includes a ring depression  3617  extending into the first surface  3610  and having a center axis equal to a center axis of the center mechanism  3612 . The ring depression  3617  defines a keyway surface  3609  spaced between the first surface  3610  and the second surface  3638 . The keyway surface  3609  includes a plurality of keyway apertures  3615  circularly spaced around a keyway center  3611 . The keyway apertures  3615  may receive a corresponding set of key protrusions  3621  of the key  3618  and may capture the set of key protrusions  3621  so that when the key  3618  is rotated, the center mechanism  3612  is also rotated. The keyway center  3611  protrudes from the keyway surface  3609  to the first surface  3610  and may be received by a bore  3623  of the key  3618 , which may align the key  3618  on the keyway  3616 . A flange  3613  is disposed on the first surface  3610  around a perimeter of the ring depression  3617 , and may be received in a similarly shaped opening on the wheel cover  800  to couple the center mechanism  3612  to the wheel cover  800 . 
     Turning to  FIGS. 40A-C , a detailed bottom view of the center mechanism  3612 , a detailed top view of the receiver receptacle  3626 , and a bottom view of the center mechanism  3612  are respectively shown. The center mechanism  3612  includes a pair of mirroring and opposing bar cutouts  3634  extending from the second surface  3638  towards the first surface  3610 . Each of the bar cutouts  3634  define a bar surface  3654  parallel to the second surface  3638  and a lock surface  3654  and an unlock surface  3656 , both of which are perpendicular to the bar surface  3654 . Further, the lock surface  3654  and the unlock surface  3656  are perpendicular to each other. A bar aperture  3636  is disposed on the bar surface  3654  and is parallel to the center axis of the center mechanism. The bar aperture  3636  is operable to receive an extension  3622  of the bar  3618 , thereby coupling the bar  3618  to the center mechanism  3612 . The extension  3622  is bent 90 degrees from the bar  3618  and may have a length shorter than a length of the bar  3618 . The extension  3622  may have a further elastomeric extension  3624  on a top of the extension  3622 . The elastomeric extension  3624  may also be a separate piece, as illustrated. The elastomeric extension  3624  is positioned in the bar aperture  3636  prior to the extension  3622  and provides a spring resistance to provide feedback to the user during use. The bar cutout  3634  is shaped to provide a space for the bar  3618  to move through when the center mechanism  3612  is rotated. 
     The center mechanism  3612  also includes an alignment depression  3628  extending into the second surface  3638  and defining a first alignment surface  3632 . The alignment depression  3628  is generally rectangular shaped and is sized to receive a corresponding alignment protrusion  3642  of the receiver receptacle  3626  to align the receiver receptacle  3626  to the center mechanism  3612 . The alignment protrusion  3646  protrudes from a first receiver surface  3640  and defines a second alignment surface  3644 , which contacts the first alignment surface  3632  when the receptacle  3626  is aligned with the center mechanism  3612 . The receiver receptacle  3626  also includes a pair of detents having a first detent  3650  and a second detent  3652 . In one example the first detent  3650  is longer than the second detent  3652 , though the first detent  3650  and the second detent  3652  can be the same length or the second detent  3652  can be longer than the first detent  3650 . The pair of detents  3650 ,  3652  receives the pair of bars  3618  and provides a feedback loop to the user indicating when the lock or unlock position has been achieved, with the first detent  3650  indicating that the pair of bars  3618  is in the in the unlock orientation and the second detent  3652  indicating that the pair of bars  3618  is in the lock orientation. The receiver receptacle  3626  also includes a second alignment aperture  3646 , which extends through the receptacle  3626  from a second receiver surface to the first receiver surface  3640  and aligns with a first alignment aperture  3630  of the center mechanism  3612 . The first alignment aperture  3630  and the second alignment aperture  3646  receive an alignment fastener  3648 , which secures the receiver receptacle  3626  to the center mechanism  3612 , thereby also securing the pair of bars  3618  between the center mechanism  3612  and the receiver receptacle  3626 . The alignment fastener  3648  can further be received by the center opening  524  of the plate, thereby securing the locking assembly  3600  to the plate  500 . 
     The locking assembly  3600  may include a pair of supporting brackets  3620  shown in  FIGS. 36-38 . The supporting brackets  3620  can be separate pieces coupled to the plate  500 , as shown in  FIGS. 36-37  or may be formed on the plate  500  directly, as shown in  FIG. 38 . Further, the locking mechanism  3600  may include no brackets, one bracket, or more than two brackets. 
     In use, a user inserts the key  3618  into the keyway  3616  and rotates the key  3618 , thereby rotating the center mechanism  3612 . When the center mechanism  3612  is rotated in a first direction, e.g. counter-clockwise, each of the pair of bars  3618  is retracted towards the center mechanism  3612  and away from two opposing posts  206 , defining the unlocked orientation shown in  FIG. 36 . In the unlocked orientation, the pair of bars  3618  are parallel to the unlock surface  3656  and are positioned in the first detent  3650 . The bars  3618  do not impede the wheel cover  800  from being pushed down and rotated off of the opposing posts  206  in the unlocked orientation. Conversely, when the center mechanism  3612  is rotated in a second direction, e.g. clockwise, each of the pair of bars  3618  are pushed away from the center mechanism  3612 , through the pair of supporting brackets  3620 , and towards the two opposing posts  206 . In the locked orientation, the pair of bars  3618  are parallel to the lock surface  3654  and are positioned in second detent  3652 . 
     To lock the locking mechanism, the key  3618  is rotated clockwise to rotate the center mechanism  3612  and push the pair of bars  3612  into a space between the two opposing post  206  and the wheel cover  800 . In the locked orientation, shown in  FIG. 37 , each of the pair of bars  3618  is positioned above the top surface  328  of each of the two opposing posts  206 . In the locked orientation, the wheel cover  800  cannot be pushed down and rotated off of the posts  206 , as the pair of bars  3612  physically obstruct the wheel cover  800 . Stated differently, the pair of bars  3612  physically obstruct the inward path of the wheel cover  800  and prevent the wheel cover  800  from being pushed towards the plate  500 . To unlock the locking mechanism  3600 , the key  3618  is rotated counter-clockwise to remove the pair of bars  3612  from the space between the two opposing post  206  and the wheel cover  800 . 
     Although the locking mechanism  3600  is shown with a pair of bars, the locking mechanism can include any number of bars including one bar or more than two bars. For example, the locking mechanism can include four bars, with each of the four bars extending over the top surface  328  of four posts. 
     Turning to  FIGS. 41 and 42 , another implementation of a wheel cover system  4100  with a wheel cover  4106  and a detailed view of a receiver  4102  and an engagement plate  4104  are shown respectively. The system  4100  includes the engagement plate  4104  coupled to the wheel cover  4106 . In one implementation, the wheel cover  4106  contacts the wheel and/or the rim. In another implementation, the wheel cover  4106  does not contact the wheel and/or the rim. The wheel cover  4106  includes a plurality of protrusions  4116  disposed on a plurality of columns  4118 . Such protrusions  4116  are received by a plurality of apertures  4120  disposed on the plate  4104 . The protrusions  4116  may be secured to the plurality of apertures  4120  by adhesion or a press fit, thereby securing the wheel cover  4106  to the plate  4104 . The plurality of columns  4118  may be secured to the wheel cover  4106  by adhesion or the wheel cover  4106  and may be manufactured as one piece with the wheel cover  4106  (e.g., machined from a solid or injection molded). Similarly, the plurality of protrusions  4116  and the plurality of columns  4118  may be one piece or multiple pieces secured to each other. 
     In use, the plate  4104  is received by the receiver  4102 , thereby coupling the wheel cover  4106  to a wheel of a vehicle. The receiver  4102  includes a plurality of posts  4108  secured to a plurality of lug nuts  4110  that are threaded to a plurality of studs  4112 . The studs  4112  may be coupled to a hub (not shown) of a vehicle (i.e., a passenger vehicle). Alternatively, each of the plurality of posts  4108  may be secured to a wheel bolt which threads into a hub of a vehicle (i.e., a passenger vehicle). The receiver  4102  also includes a spring  4114  that provides both positive feedback to a user and a spring bias to lock the wheel cover  4106  to the receiver  4102 . 
       FIG. 43  illustrates one of the plurality of posts  4108  secured to the lug nut  4110 . Each post  4108  may be secured to the lug nut  4110  by adhesion or the post  4108  and the lug nut  4110  may be machined as one piece. Similarly, in one implementation, each post  4108  may be secured to a wheel bolt by adhesion, or the post  4108  and the wheel bolt may be machined as one piece. In the illustrated example, the post  4108  includes a stem  4300  extending from the lug nut  4110  to a neck  4302 . A diameter of the neck  4302  is greater than a diameter of the stem  4300  and less than a diameter of the cap  4304 . A cap  4304  is disposed at an end of the post  4108 . The stem  4300  includes a taper at a transition between the neck  4302  and the stem  4300 . 
       FIG. 44  illustrates the plurality of posts  4108 , lug nuts  4410 , and studs  4112  (not visible), and spring  4114  assembled onto an example rim  4400 . In the illustrated example, the plurality of posts  4108  include five posts  4108  arranged in a star pattern. The plurality of posts  4108  may include one, two, or more than two posts  4108  and may be arranged in any pattern. The number of posts and the pattern may include patterns of typical passenger vehicles. Also shown in the illustrated example, the spring  4114  may be disposed in a well  4402  of the rim  4400  and adhered or frictionally engaged to the well  4402 . The varying diameters of each post  4108  correspond to varying diameter cuts of the plate  4104 , and coupled with the spring  4114 , receive and lock the plate  4104  to rim  4400 . 
       FIG. 45  illustrates the plate  4104  engaged with the plurality of posts  4108 . The illustrated plate  4104  is circular, though the plate  4104  may be any size or shape including, but not limited to, a square, an oval, a rectangle, a star, a diamond, or the like. The plate  4104  may be any solid material such as a metal or plastic, and may be machined or injection molded. The plate  4104  includes a plurality of openings  4506  and the plurality of apertures  4120 , as described and shown in  FIG. 42 . In the illustrated implementation, the plurality of openings  4506  and the plurality of apertures  4120  each include five openings  4506  and five apertures  4120 , respectively. Each of the five openings  4506  are disposed in a circular star pattern corresponding to the star pattern of the plurality of posts  4108 . In the same example, each of the five apertures  4120  is disposed in a circular star pattern between each of the five openings  4506 . Each of the plurality of openings  4506  and the plurality of apertures  4120  may include one, two, or more than two openings  4506  and/or apertures  4120 , respectively, and each may be disposed in any pattern. 
     Each of the plurality of openings  4506  include an elongated stem opening  4500  with a neck opening  4502  disposed at one end and a cap opening  4504  at another end. In the illustrated implementation, the neck opening  4502  and the cap opening  4504  are semi-circular and the stem opening  4500  is slightly curved, though the stem opening  4500 , the neck opening  4502 , the cap opening  4504  may be any shape. A width of the stem opening  4500  corresponds to, and is substantially equal to, the diameter of the stem  4300 . Similarly, the diameter of the neck opening  4502  and the cap opening  4504  correspond to, and are substantially equal to, the diameter of the neck  4302  and the cap  4304 . Such corresponding steps in the post  4108  and diameter cuts in the plate  4104  provide for engagement of the plate  4104  with the post  4108 . 
     During installation or uninstallation, each of the posts  4108  are received by each of the cap openings  4504  and the plate  4104  receives a force to move the plate  4104  below both the cap  4304  and the neck  4302  in a first orientation (i.e. unlocked). The plate  4104  can be rotated between the first orientation (i.e. unlocked) to a second orientation (i.e. locked), which rotates each of the post  4108  through each of the stem openings  4500  to the neck openings  4502 . The second orientation is defined by each of the posts  4108  disposed in the neck opening  4502 , where the plate  4104  cannot be lifted off of the plurality of posts  4108  because the diameter of the neck opening  4502  is less than the diameter of the cap  4304 . In other words, each of the caps  4304  prevents the plate  4104  from being removed from the plurality of posts  4108 . The corresponding steps in the post  4108  and diameter cuts in the plate  4104 , together with a spring bias, locks the plate  4104  in the second orientation. 
       FIG. 46  illustrates the plate  4104  engaged to the plurality of posts  4108 , with the spring  4114  visible. The spring  4114  provides the spring bias against the plate  4104 . To move the plate  4104  from the first orientation to the second orientation, a downward force greater than the spring bias is received by the plate  4104 , which moves and positioned the plate  4104  below the cap  4304  and the neck  4302  and adjacent to a portion of the stem  4300 . The plate  4104  receives a rotational force to move the plate  4104  from the first orientation to the second orientation (e.g., clockwise). The downward and rotational force are released, and the spring bias pushes the plate  4104  away from the hub and towards the cap  4304  of the post  4108 . In other words, the plate  4104  receives a positive feedback from the spring  4114 , which the plate  4104  against the plurality of posts  4108 . The spring bias, together with the cap  4304  of the post  4108  and the neck opening  4502  of the plate  4104 , lock the plate  4104  in the second orientation. The second orientation is further defined by a top surface  4508  of the plate  4104  positively engages a bottom cap surface  4306  of the cap  4304 . In the illustrated example, the spring bias is provided by a coil spring  4114 , though the spring bias may be provided by any spring such as, but not limited to, a leaf spring, a conical spring, a torsion spring, or the like. Also visible in  FIG. 46 , the wheel cover  4106  shown is disc or domed shaped, although the wheel cover  4106  may be any shape. 
       FIG. 47  illustrates the wheel cover  4106  disposed on the rim  4400 . In the illustrated example, the wheel cover  4106  is the same diameter as the rim  4400  and provides a smooth surface over the rim  4400 . Such surface may beneficially increase an aerodynamic efficiency of the wheel cover system  4100 . 
       FIG. 48  illustrates example operations  4800  for installing a wheel cover assembly onto a receiver. An operation  4802  positions a first opening of an engagement plate of a cover assembly over a post of the receiver. An operation  4804  receives an inward force overcoming a spring bias of a spring of the receiver. An operation  4806  receives a rotational force in a first rotational direction (e.g., clockwise) guiding the engagement plate about the post from the first opening to a second opening. An operation  4808  generates a first positive feedback in response to the rotational force and the inward force. In one implementation, the first positive feedback is generated in response to contact between the post and the engagement plate, preventing further translational movement in an inward direction and rotational movement in the first rotational direction. An operation  4810  translates the wheel cover assembly outwards in connection with a second positive feedback generated by the spring bias of the spring. The outward translation locks the wheel cover assembly in position on the receiver. 
       FIG. 49  illustrates example operations  4900  for removal of a wheel cover assembly from a receiver. An operation  4902  receives an inward force on the wheel cover assembly overcoming a spring bias of a spring of the receiver. An operation  4904  receives a rotational force in a rotational direction (e.g., counterclockwise). An operation  4906  disengages an opening of an engagement plate of the wheel cover assembly from a post of the receiver using the inward and rotational forces. An operation  4908  releases the wheel cover assembly from the receiver using the spring bias of the spring. In other words, the spring bias of the spring translates the wheel cover in an outward direction, releasing it from the receiver. 
     In addition to  FIGS. 41-47 , various features, including ornamental features, of a passenger vehicle wheel cover, such as the wheel cover assembly  4100 , may be seen in  FIGS. 50A-57D . 
     Generally, the wheel cover system described provides various advantages over conventional assembly including ease of use and installation. The wheel cover system may be used on any type of vehicle including, but not limited to, commercial trucks, passenger cars, trucks, Sports Utility Vehicles (SUVs), or the like. The cover assembly allows for quick installation of the wheel cover onto the hub by simply pressing down and rotating the wheel cover onto the receiver. Furthermore, the total parts count for the wheel cover quick mount is less than conventional assemblies. In one implementation, the total count is 16 parts including the center hub, four posts, and a spring. Having fewer parts allows for quicker and simpler installation of the assembly. As illustrated, the cover assembly can be easily and quickly installed or removed from the receiver without tools. To install, the cover is simply pushed inwards and rotated clockwise. To remove, the cover is pushed inwards and rotated counter-clockwise. The method of installation is unique as the method completely conceals the confines of the wheel cover wheel cover system. Nothing touches the wheel and the wheel cover appears to float on the wheel. Furthermore, the function of installation does not hinder aerodynamics of the wheel cover, which may provide relief from a paddle wheel effect. 
     The description above includes example systems, methods, techniques, and/or instruction sequences that embody techniques of the present disclosure. However, it is understood that the described disclosure may be practiced without these specific details. It is believed that the present disclosure and many of its attendant advantages will be understood by the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the components without departing from the disclosed subject matter or without sacrificing all of its material advantages. The form described is merely explanatory, and it is the intention of the following claims to encompass and include such changes. 
     While the present disclosure has been described with reference to various implementations, it will be understood that these implementations are illustrative and that the scope of the disclosure is not limited to them. Many variations, modifications, additions, and improvements are possible. More generally, implementations in accordance with the present disclosure have been described in the context of particular implementations. Functionality may be separated or combined in blocks differently in various implementations of the disclosure or described with different terminology. These and other variations, modifications, additions, and improvements may fall within the scope of the disclosure as defined in the claims that follow.