Patent Publication Number: US-2020283995-A1

Title: Electro-hydraulic arrangement for an earthmoving machine

Description:
TECHNICAL FIELD 
     The present disclosure relates to a fluid control system for controlling movement of a work implement associated with an earthmoving machine. More particularly, the present disclosure relates to an electro-hydraulic arrangement for controlling operation of a pair of hydraulic tilt actuators that are associated with a work implement of an earthmoving machine. 
     BACKGROUND 
     Earthmoving machines typically employ hydraulic actuators for actuating movement of a work implement. One example of such an earthmoving machine may include a dozer having a dozing blade as the working implement. Such machines may employ a pair of hydraulic tilt cylinders and a hydraulic, or electro-hydraulic, control system for controlling movement of the work implement in relation to a frame of the machine. An example of such a control system is disclosed in U.S. Pat. No. 5,682,955. 
     However, system hardware design of conventional control systems that control movement of a work implement may be bulky in construction and complex to operate owing, at least in part, to a number of valves and/or a number of manifolds that may be used to form the control system and controlled in operation. Consequently, it is envisioned that costs associated with the manufacture of such control systems may increase with an increased number and complexity of components. 
     Hence, there is a need for a fluid control system that overcomes the aforementioned drawbacks. 
     SUMMARY OF THE DISCLOSURE 
     In an aspect of the present disclosure, an electro-hydraulic arrangement is provided for controlling operation of a pair of hydraulic tilt actuators that are associated with a work implement of an earthmoving machine. The electro-hydraulic arrangement includes a housing, a directional control valve and a regeneration valve that are disposed within the housing. The directional control valve and the regeneration valve are coupled in selective fluid communication with one another. The directional control valve and the regeneration valve are also coupled in selective fluid communication with the pair of actuators via a plurality of ports defined on the housing. At least one first port of the housing communicates fluid between a head end chamber of a first actuator and a first control port of the directional control valve. At least one second port of the housing communicates fluid between a rod end chamber of the first actuator and a second control port of the directional control valve. A third port of the housing communicates fluid between a rod end chamber of a second actuator and a third control port of the directional control valve. A fourth port of the housing communicates fluid between a head end chamber of the second actuator and an output port of the regeneration valve. A drain port of the housing fluidly communicates with a drain control port of the regeneration valve. When the directional control valve is in one of a first and second operative position, the rod end chambers of respective ones of the first and second actuators are configured to communicate fluid with the fourth port to supply fluid to the head end chamber of the second actuator if the regeneration valve is in a regenerative position. Further, when the directional control valve is in one of a first and second operative position, the rod end chambers of respective ones of the first and second actuators are configured to communicate fluid with the drain port to drain the rod end chambers of respective ones of the first and second actuators if the regeneration valve is in a drain position. 
     In another aspect of this disclosure, a fluid control system is provided for controlling operation of a pair of hydraulic tilt actuators to control movement of a work implement of an earthmoving machine. The fluid control system includes a fluid source, and an electro-hydraulic arrangement that is coupled in selective fluid communication with the pair of actuators and the fluid source. The electro-hydraulic arrangement is configured to selectively communicate fluid between the fluid source and the pair of actuators and between the pair of actuators. The electro-hydraulic arrangement includes a housing, a directional control valve and a regeneration valve that are disposed within the housing. The directional control valve and the regeneration valve are coupled in selective fluid communication with one another. The directional control valve and the regeneration valve are also coupled in selective fluid communication with the pair of actuators via a plurality of ports defined on the housing. At least one first port of the housing communicates fluid between a head end chamber of a first actuator and a first control port of the directional control valve. At least one second port of the housing communicates fluid between a rod end chamber of the first actuator and a second control port of the directional control valve. A third port of the housing communicates fluid between a rod end chamber of a second actuator and a third control port of the directional control valve. A fourth port of the housing communicates fluid between a head end chamber of the second actuator and an output port of the regeneration valve. A drain port of the housing fluidly communicates with a drain control port of the regeneration valve. When the directional control valve is in one of a first and second operative position, the rod end chambers of respective ones of the first and second actuators are configured to communicate fluid with the fourth port to supply fluid to the head end chamber of the second actuator if the regeneration valve is in a regenerative position. Further, when the directional control valve is in one of a first and second operative position, the rod end chambers of respective ones of the first and second actuators are configured to communicate fluid with the drain port to drain the rod end chambers of respective ones of the first and second actuators if the regeneration valve is in a drain position. 
     In yet another aspect of this disclosure, a method for controlling operation of a pair of hydraulic tilt actuators that are associated with a work implement of an earthmoving machine includes providing a housing having a plurality of ports defined thereon. The method further includes coupling a directional control valve and a regeneration valve in selective fluid communication with one another, via a fluid control line defined in the housing. The method also includes coupling the directional control valve and the regeneration valve in selective fluid communication with the pair of actuators, via the plurality of ports defined on the housing, such that at least one first port of the housing communicates fluid between a head end chamber of a first actuator and a first control port of the directional control valve, at least one second port of the housing communicates fluid between a rod end chamber of the first actuator and a second control port of the directional control valve, a third port of the housing communicates fluid between a rod end chamber of a second actuator and a third control port of the directional control valve, a fourth port of the housing communicates fluid between a head end chamber of the second actuator and an output port of the regeneration valve, and a drain port of the housing fluidly communicates with a drain control port of the regeneration valve. The method further includes actuating movement of the directional control valve into one of a first and second operative position. The method further includes actuating movement of the regeneration valve into a regenerative position to communicate fluid from the rod end chambers of respective ones of the first and second actuators with the fourth port to supply fluid to the head end chamber of the second actuator. Optionally, the method further includes positioning the regeneration valve in a drain position to communicate fluid from the rod end chambers of respective ones of the first and second actuators with the drain port to drain the rod end chambers of respective ones of the first and second actuators. 
     Other features and aspects of this disclosure will be apparent from the following description and the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a diagrammatic view of an exemplary earthmoving machine having a work implement mounted thereon, a pair of hydraulic tilt actuators pivotally coupled to the work implement, and a fluid control system for controlling operation of the pair of tilt actuators, in accordance with an embodiment of the present disclosure; 
         FIG. 2  is a rear elevational perspective view of a representative work implement which is variably positionable by the fluid control system of the present disclosure and further illustrating in fragmentary phantom outline the machine on which the work implement is mounted; 
         FIG. 3  is a schematic view of the fluid control system showing an electro-hydraulic arrangement and various components of the electro-hydraulic arrangement, in accordance with an embodiment of the present disclosure; 
         FIG. 4  is a perspective view of an electro-hydraulic arrangement of the fluid control system, in accordance with an embodiment of the present disclosure; and 
         FIG. 5  is a flowchart depicting steps of a method for controlling an operation of the pair of hydraulic tilt actuators that are associated with the work implement of the earthmoving machine, in accordance with an embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     Reference numerals appearing in more than one figure indicate the same or corresponding parts in each of them. References to elements in the singular may also be construed to relate to the plural and vice-versa without limiting the scope of the disclosure to the exact number or type of such elements unless set forth explicitly in the appended claims. 
       FIG. 1  illustrates an exemplary earthmoving machine  100 , hereinafter referred to as ‘the machine  100 ’. As shown, the machine  100  is embodied as a tractor. However, in other embodiments, the machine  100  may embody other forms or types of earthmoving machines known to persons skilled in the art. 
     The machine  100  includes a frame  102 , and a pair of ground engaging members  104  are rotatably supported on the frame  102 . Although, only one ground engaging member  104  is visible in the side view of  FIG. 1 , a similar ground engaging member is present on the machine  100  and is located distally away from the ground engaging member  104  visible in the view of  FIG. 1 . The ground engaging members  104  may rotate relative to the frame  102  for propelling the machine  100  on a work surface  106 , for example, a mine site. As shown, the pair of ground engaging members  104  may include tracks. However, persons skilled in the art will acknowledge that the present disclosure is not limited to the tracks disclosed herein. Other types of ground engaging members, for example, wheels may be used to form the ground engaging members  104  in lieu of the tracks disclosed herein. 
     A work implement  108  is moveably supported on the frame  102 . As shown, one end of a push arm  109  is coupled to the frame  102  using a pivot joint  111  and another end of the push arm  109  pivotally supports the work implement  108  thereon. As shown in the view of  FIG. 1 , the work implement  108  is embodied as a carry-dozing blade, and for sake of simplicity, the work implement  108  will hereinafter be referred to as ‘the blade  108 ’. In other embodiments, the work implement  108  may embody a dozing blade in lieu of the carry-dozing blade. The ‘dozing blade’ disclosed herein may be regarded as any type of blade that is configured to doze material on the work surface  106  without significantly performing a ‘carry’ function in which a weight of the material laden into/onto the blade would be, otherwise, lifted off from the work surface  106 . 
     With continued reference to  FIG. 1  and as shown best in the view of  FIG. 2 , a pair of hydraulic lift actuators  110 , hereinafter referred to as ‘lift actuator/s  110 ’, are supported by the frame  102  and connected to a rearwardly facing mid-portion of the blade  108 . The lift actuators  110  operably raise or lower the blade  108  in relation to the work surface  106 . Further, a pair of hydraulic tilt actuators  112 ,  114 , hereinafter referred to as ‘tilt actuator/s  112 ,  114 ’, are disposed on opposite sides of the machine  100  and located between the push arms  109  and the blade  108  for tilting and/or tipping the blade  108  relative to the frame  102 . As best shown in the view of  FIG. 3 , each tilt actuator  112 ,  114  has a rod end chamber  116  and a head end chamber  118 . 
     In this application, ‘tilting’ is the action of moving the blade  108  about a horizontally arranged longitudinal axis XX′ substantially perpendicular to the blade  108 , whereas ‘tipping’ is the action of moving the blade  108  about a horizontally arranged transverse axis YY′ substantially parallel to the blade  108 . Moreover, although one configuration of the lift and tilt actuators  110 ,  112  and  114  is disclosed herein, it may be noted that embodiments of the present disclosure may be similarly applied to other types of machines in which alternative configurations of the lift and tilt actuators  110 ,  112  and  114  may be contemplated for use in controlling movement of a corresponding work implement relative to the frame  102 . 
     As shown in  FIG. 1 , the machine  100  also includes a fluid control system  300  associated with the tilt actuators  112 ,  114 . The fluid control system  300  is provided for controlling operation of the tilt actuators  112 ,  114  to control movement of the blade  108 . As best shown in the schematic of  FIG. 3 , the fluid control system  300  includes a fluid source  302 . The terms ‘fluid source  302 ’ may include an implement valve  304 , that in one embodiment, may embody a main control valve of the machine  100 . The implement valve  304  may be disposed in fluid communication with a pump  306  and a tank  308 . The term ‘fluid’ disclosed herein may be regarded as any type of power transmission fluid, for example, an oil of a specified grade known to persons skilled in the art. 
     The fluid control system  300  also includes an electro-hydraulic arrangement  310 , hereinafter referred to as ‘the arrangement  310 ’. The arrangement  310  is coupled in selective fluid communication with the pair of actuators  112 ,  114  i.e., the tilt actuators  112 ,  114  and the fluid source  302 . The arrangement  310  is configured to selectively communicate fluid between the fluid source  302  and the pair of actuators and between the pair of actuators. The arrangement  310  includes a housing  312 . The arrangement  310  also includes a directional control valve  314  and a regeneration valve  316  that are disposed within the housing  312 . In an embodiment as shown, the directional control valve  314  is a spring-biased solenoid-actuated 4-port 3-position spool valve and the regeneration valve  316  is a spring-biased solenoid-actuated 3-port 2-position diverter valve. The directional control valve  314  and the regeneration valve  316  are coupled in selective fluid communication with one another. The directional control valve  314  and the regeneration valve  316  are also coupled in selective fluid communication with the pair of actuators via a plurality of ports defined on the housing  312 , explanation to which will be made later herein. 
     The housing  312  defines at least one first port  318  that communicates fluid, for e.g., oil between the head end chamber  118  of a first actuator i.e., the tilt actuator  112  and a first control port  320  of the directional control valve  314 . Further, the housing  312  defines at least one second port  322  that communicates fluid between the rod end chamber  116  of the first actuator  112  and a second control port  324  of the directional control valve  314 . 
     In the illustrated embodiment of  FIGS. 3 and 4 , the housing  312  defines two first ports  318  and two second ports  322  respectively. It will be appreciated that by positioning each of the two first ports  318  and each of the two second ports  322  on adjacent sidewalls  326 ,  328  of the housing  312  (refer to  FIG. 3 ), the two first ports  318  and the two second ports  322  can allow users of the arrangement  310  to flexibly use any one of the two first ports  318  and any one of the two second ports  322  to connect with the fluid conduits (not shown in the view of  FIG. 4 ) in communication with the rod end chamber  116  and the head end chamber  118  of one of the tilt actuators, for instance, the tilt actuator  112  as shown. 
     Further, the housing  312  also defines a third port  330  that communicates fluid between the rod end chamber  116  of a second actuator i.e., the tilt actuator  114  and a third control port  332  of the directional control valve  314 . Furthermore, the housing  312  also defines a fourth port  334  that communicates fluid between the head end chamber  118  of the second actuator  114  and an output port  336  of the regeneration valve  316 . Furthermore, the housing  312  also defines a fluid control line  338  to communicate fluid from a fourth control port  340  of the directional control valve  314  to an input port  342  of the regeneration valve  316 . 
     Moreover, referring to  FIG. 3  and as best shown in the view of  FIG. 4 , the housing  312  also defines a supply port  344  that is disposed in fluid communication with the fluid source  302  i.e., the implement valve  304 . The supply port  344  is configured to communicate fluid between the fluid source  302  and the head end chamber  118  of the second actuator  114  via the fourth port  334  of the housing  312 . Further, the housing  312  also defines a drain port  346  that is configured to fluidly communicate the fluid source  302  i.e., the implement valve  304  with a drain control port  348  of the regeneration valve  316 . 
     The arrangement  310  also includes a first solenoid valve  350 , a second solenoid valve  352  and a third solenoid valve  354  disposed within the housing  312 . The first solenoid valve  350  is coupled in selective fluid communication with a first end actuator  356  of the directional control valve  314 . The second solenoid valve  352  is coupled in selective fluid communication with a second end actuator  358  of the directional control valve  314 . The third solenoid valve  354  is coupled in selective fluid communication with an end actuator  360  of the regeneration valve  316 . 
     As shown, the housing  312  has a pilot supply port  362  in independent fluid communication with each of the first, second and third solenoid valves  350 ,  352 ,  354 . The housing  312  may be additionally provided with a pilot supply conduit  364  that is disposed in fluid communication with the pilot supply port  362  via a first orifice  366 . Further, the housing  312  may also define at least one pilot discharge port  368  that serves to return actuation fluid from one or more of the first, second and third solenoid valves  350 ,  352 ,  354  to the fluid source  302 , i.e., the implement valve  304 , or the tank  308  as shown, when respective ones of the first, second and third solenoid valves  350 ,  352 ,  354  are rendered in a non-operational state. As best shown in the view of  FIG. 4 , the housing  312  defines two pilot discharge ports  368  provided on the housing  312 . The pilot discharge ports  368  may be disposed in fluid communication with each other. Therefore, either, or both, pilot discharge ports  368  may be coupled in fluid communication with the fluid source  302 , i.e., the implement valve  304  shown in the schematic of  FIG. 3 . In other embodiments, fewer or more pilot discharge ports  368  may be defined on the housing  312  of the arrangement  310  based on application requirements as acknowledged by persons skilled in the art. 
     In the illustrated embodiment of  FIG. 4 , the actuation fluid, received at the pilot supply port  362  of the housing  312 , and the fluid designated as the main working fluid, received at the supply port  344  of the housing  312 , are drawn from the same fluid source  302 , and may hence, be similar in nature in order to reduce system manufacturing costs, simplify an overall design of the arrangement  310  and its interaction with other hydraulic components of the machine  100 . However, in other embodiments, based on specified requirements of an application it can be contemplated to configure the arrangement  310  such that the arrangement  310  may use distinct fluids as the main working fluid and the actuation fluid respectively. 
     Also, in an embodiment as shown best in the view of  FIG. 4 , the arrangement  310  also includes a first, second and third terminal  370 ,  372 ,  374  disposed, at least partially, within the housing  312 . The first, second and third terminals  370 ,  372 ,  374  correspond to the first, second and third solenoid valves  350 ,  352 ,  354  and are adapted to receive power connections for selectively actuating the first, second and third solenoid valves  350 ,  352 ,  354  independently of one another. In embodiments herein, each of the first, second and third solenoid valves  350 ,  352 ,  354  may be actuated electrically, and independently of one another, by appropriate command signals issued by a controller  376  based on one or more inputs received from a user-operable control device  378  in communication with the controller  376 . 
     It may be noted that the controller  376  disclosed herein may include various software and/or hardware components that are configured to co-operatively perform functions consistent with the present disclosure. The controller  376  may be a stand-alone controller or may be configured to co-operate with an existing electronic control unit (ECU) (not shown) of the machine  100 . Further, the controller  376  may embody a single microprocessor or multiple microprocessors. Numerous commercially available microprocessors can be configured to perform the functions of the controller  376  disclosed herein. It should be appreciated that the controller  376  could readily be embodied in a general machine microprocessor capable of controlling numerous machine functions. The controller  376  may also include a memory and any other components for running an application. Various circuits may be associated with the controller  376  such as power supply circuitry, signal conditioning circuitry, solenoid driver circuitry, and other types of circuitry. Also, various routines, algorithms, and/ or programs can be stored at the controller  376  for controlling movement of the blade  108  i.e., for controlling positioning of the blade  108  relative to the frame  102  based, at least in part on, for example, a current position of the blade  108  and/or the lift and tilt actuators  110 ,  112  and  114  as sensed and output by one or more position sensors (not shown) associated therewith. 
     The user-operable control device  378  may include, for example, a lever  380 , a switch  382 , or any other device/s that is designated for receiving inputs from an operator of the machine  100  in response to which the controller  376  issues appropriate command signals to each of the first, second and third solenoid valves  350 ,  352 ,  354  for controlling movement of the blade  108  relative to the longitudinal axis XX′ and/or the transverse axis YY′ shown in the view of  FIG. 2 . For instance, in the event that an operator of the machine  100  moves the lever  380  instantaneously or rapidly, or depresses the switch  382  in tandem with, or without, concurrent movement of the lever  380  to a position that commands a ‘faster-than-usual’ tilt speed and/or tip speed of the blade  108 , the controller  376  commands the third solenoid valve  354  to allow actuate movement of the regeneration valve  316  into its regenerative position in which fluid, from the rod end chambers  116  of either one or both of the tilt actuators  112 ,  114 , if present in the fluid control line  338  may be routed to the head end chamber  118  of one of the actuators, for instance, the actuator  114  via the output port  336  of the regeneration valve  316  to recombine with fluid flow from the implement valve  304  via the supply port  344  at the fourth port  334  of the housing  312 . This recombination of fluids at the fourth port  334  of the housing  312  causes the head end chamber  118  of the actuator  114 , and optionally the head end chamber  118  of the actuator  112 , to expand at a speed that is ‘faster-than-usual’ resulting in ‘faster-than-usual’ tilt and/or tip speeds of the blade  108  relative to the frame  102  when tilting or tipping movements of the blade  108  are needed to be carried out by the machine  100 . Moreover, the recombination of fluids may entail a decrease in the amount of flow needed from the pump  306  to ‘rapidly’ tilt or tip the blade  108 . Consequently, it is envisioned that with operation of the regeneration valve  316 , the pump  306  may have an improved i.e., an extended or prolonged service life. 
     In embodiments herein, when the directional control valve  314  is in one of a first and second operative position and if the regeneration valve  316  is in a regenerative position, the rod end chambers  116  of respective ones of the first and second actuators  112 ,  114  are configured to communicate fluid with the fourth port  334  of the housing  312  for supplying fluid to the head end chamber  118  of the second actuator  114 . 
     In a first mode of operation, upon actuation of the first and third solenoid valves  350 ,  354 , fluid flow via the pilot supply port  362  of the housing  312  is configured to actuate movement of each of the directional control valve  314  and the regeneration valve  316  upwards i.e., into a second operative position and the regenerative position respectively. When the directional control valve  314  and the regeneration valve  316  are in the second operative position and the regenerative position respectively, the rod end chamber  116  of the second actuator  114  communicates fluid with the head end chamber  118  of the first actuator  112 , via the third and second control ports  332 ,  324  of the directional control valve  314 . Also, the rod end chamber  116  of the first actuator  112  communicates fluid with the head end chamber  118  of the second actuator  114 , via the first and fourth control ports  320 ,  340  of the directional control valve  314 , and via the input and output ports  342 ,  336  of the regeneration valve  316 . In this manner, fluid from respective ones of the fluid control line  338  and the supply port  344  combines at the fourth port  334  of the housing  312  to cause rapid extension of the head end chamber  118  of the second actuator  114  and in response to which the head end chamber  118  of the first actuator  112  also rapidly extends in a coterminous manner with the fluid expelled from the rod end chamber  116  of the second actuator  114  routed to the head end chamber  118  of the first actuator  112  via the third and second control ports  332 ,  324  of the directional control valve  314 . 
     This first mode of operation in which the first and third solenoid valves  350 ,  354  are commanded, or energized, to actuate movement of the directional control valve  314  and the regeneration valve  316  into the second operative position and the regenerative position respectively and in response to which the tilt actuators  112 ,  114  ‘rapidly’ extend in length for tipping the blade  108  over the horizontally arranged transverse axis YY′ (refer to  FIG. 2 ) may be regarded as a ‘rapid pitch mode’ that may be advantageously used by an operator of the machine  100  during a quick dump event to jerk out any material that has been dozed by, or laden on, the blade  108 . 
     In a second mode of operation, upon actuation of the second and third solenoid valves  352 ,  354 , fluid flow via the pilot supply port  362  of the housing  312  is configured to actuate movement of the directional control valve  314  downwards i.e., into a first operative position and the regeneration valve  316  upwards i.e., into the regenerative position. When the directional control valve  314  and the regeneration valve  316  are in the first operative position and the regenerative position respectively, the rod end chamber  116  of the second actuator  114  communicates fluid with the head end chamber  118  of the second actuator  114  via the third and fourth control ports  332 ,  340  of the directional control valve  314  and via the input and output ports  342 ,  336  of the regeneration valve  316 . Further, when the directional control valve  314  is in the first operative position, the directional control valve  314  is also configured to prevent fluid flow between the first and second control ports  320 ,  324  so as to prevent communication between the rod end and head end chambers  116 ,  118  of the first actuator  112 . As a result, the first actuator  112  remains stationary in its current position while the second actuator  114  extends ‘rapidly’ to tilt the blade  108  at a speed ‘faster-than-usual’ about the horizontally arranged longitudinal axis XX′. For purposes of the present disclosure, the second mode of operation disclosed herein may be regarded as ‘the rapid tilt mode’. 
     Further, in alternative embodiments herein, when the directional control valve  314  is in one of a first and second operative position and the regeneration valve  316  is in a drain position i.e., the third solenoid is not energized by the controller  376 , the rod end chambers  116  of respective ones of the first and second actuators  112 ,  114  are configured to communicate fluid with the drain port  346  of the housing  312  to drain the rod end chambers  116  of respective ones of the first and second actuators  112 ,  114  to the fluid source  302  i.e., the implement valve  304  or the tank  308  depending on specific requirements of an application. 
       FIG. 5  illustrates a method  500  for controlling an operation of the pair of tilt actuators  112 ,  114  associated with the blade  108  of the machine  100 . 
     As shown at step  502  of  FIG. 5 , the method includes providing the housing  312  having the plurality of ports defined thereon. In an example as shown in  FIG. 4 , the housing  312  having the first, second, third and fourth ports  318 ,  322 ,  330 ,  334  besides the supply port  344 , the drain port  346 , the pilot supply port  362 , and the pilot discharge port  368 . 
     At step  504 , the method  500  further includes coupling the directional control valve  314  and the regeneration valve  316  in selective fluid communication with one another, via the fluid control line  338  defined in the housing  312 . As shown best in the view of  FIG. 3 , the fluid control line  338  is defined in the housing  312  to communicate fluid between the fourth control port  340  of the directional control valve  314  and the input port  342  of the regeneration valve  316 . 
     At step  506 , the method  500  also includes coupling the directional control valve  314  and the regeneration valve  316  in selective fluid communication with the pair of actuators i.e., the tilt actuators  112 ,  114 , via the plurality of ports defined on the housing  312  such that at least one first port  318  of the housing  312  communicates fluid between the head end chamber  118  of the first actuator  112  and the first control port  320  of the directional control valve  314 , at least one second port  322  of the housing  312  communicates fluid between the rod end chamber  116  of the first actuator  112  and the second control port  324  of the directional control valve  314 , the third port  330  of the housing  312  communicates fluid between the rod end chamber  116  of the second actuator  114  and the third control port  332  of the directional control valve  314 , the fourth port  334  of the housing  312  communicates fluid between the head end chamber  118  of the second actuator  114  and the output port  336  of the regeneration valve  316 , and the drain port  346  of the housing  312  fluidly communicates with the drain control port  348  of the regeneration valve  316 . 
     At step  508 , the method  500  further includes actuating movement of the directional control valve  314  into one of the first and second operative positions. At step  510 , the method  500  further includes actuating movement of the regeneration valve  316  into its regenerative position to communicate fluid from the rod end chambers  116  of respective ones of the first and second actuators  112 ,  114  with the fourth port  334  to supply fluid to the head end chamber  118  of the second actuator  114 . 
     Optionally, as shown at step  512 , the method  500  further includes positioning the regeneration valve  316  in the drain position to communicate fluid from the rod end chambers  116  of respective ones of the first and second actuators  112 ,  114  with the drain port  346  of the arrangement  310  to drain the rod end chambers  116  of respective ones of the first and second actuators  112 ,  114 . 
     Additionally, in embodiments herein, the method  500  also includes positioning the first solenoid valve  350 , the second solenoid valve  352  and the third solenoid valve  354  within the housing  312 . Moreover, the method  500  would also include coupling the first solenoid valve  350  in selective fluid communication with the first end actuator  356  of the directional control valve  314 . Further, the method  500  would also include coupling the second solenoid valve  352  in selective fluid communication with the second end actuator  358  of the directional control valve  314 . Furthermore, the method  500  would also include coupling the third solenoid valve  354  in selective fluid communication with the end actuator  360  of the regeneration valve  316 . 
     Various embodiments disclosed herein are to be taken in the illustrative and explanatory sense and should in no way be construed as limiting of the present disclosure. All joinder references (e.g., associated, provided, connected, coupled and the like) and directional references (e.g., upwards, downwards, and the like) are only used to aid the reader&#39;s understanding of the present disclosure, and may not create limitations, particularly as to the position, orientation, or use of the systems and/or methods disclosed herein. Therefore, joinder references, if any, are to be construed broadly. Moreover, such joinder references do not necessarily infer that two elements are directly connected to each other. 
     Additionally, all numerical terms, such as, but not limited to, “first”, “second”, or any other ordinary and/or numerical terms, should also be taken only as identifiers, to assist the reader&#39;s understanding of the various elements of the present disclosure, and may not create any limitations, particularly as to the order, or preference, of any element relative to or over another element. 
     It is to be understood that individual features shown or described for one embodiment may be combined with individual features shown or described for another embodiment. The above described implementation does not in any way limit the scope of the present disclosure. Therefore, it is to be understood although some features are shown or described to illustrate the use of the present disclosure in the context of functional segments, such features may be omitted from the scope of the present disclosure without departing from the spirit of the present disclosure as defined in the appended claims. 
     INDUSTRIAL APPLICABILITY 
     With implementation of the embodiments disclosed herein, manufacturers of earthmoving machines can easily install a fluid control system for controlling operation of a pair of hydraulic actuators. The arrangement of the present disclosure is imparted with a fluid regeneration functionality that can help operators to accomplish a ‘rapid tilt mode’ and a ‘rapid pitch mode’ of operation for a work implement of the machine. 
     As a single housing houses a directional control valve, a regeneration valve, a first solenoid, a second solenoid, a third solenoid, and the first, second and third terminals, the housing serves to integrate an assembly of the afore-mentioned components therein besides rendering the arrangement as a unitary component, of compact size, for use on a machine. The compact size of the arrangement may require a far lesser amount of space on the machine for installation as compared to traditional fluid control systems or setups in which multiple valves and/or manifolds are rendered independently of one another and individually connected to form the traditional fluid control system. 
     The housing may be formed using metals, for example, ductile iron, brass, or a thermoplastic polymer, for example, High-density polyethylene (HDPE). The housing of the arrangement may be produced using commonly known processes including, but not limited to, die-casting, machining, additive manufacturing or other known to persons skilled in the art. Therefore, a manufacture of the housing may be accomplished easily, quickly, and in a cost-effective manner. By using the housing to enclose the assembly of aforementioned components disclosed herein, the housing may also help prevent deterioration of such components when operating in extreme or harsh environments. Thus, the arrangement of the present disclosure also helps to reduce downtimes previously associated with the machine, owing to frequent maintenance, repair or replacement of traditionally known fluid control setups exposed to similar working environments. 
     While aspects of the present disclosure have been particularly shown and described with reference to the embodiments above, it will be understood by those skilled in the art that various additional embodiments may be contemplated by the modification of the disclosed machines, systems, methods and processes without departing from the spirit and scope of what is disclosed. Such embodiments should be understood to fall within the scope of the present disclosure as determined based upon the claims and any equivalents thereof