Source: https://patents.google.com/patent/EP2414211B1/en
Timestamp: 2020-05-31 02:04:48
Document Index: 490445948

Matched Legal Cases: ['art 2', 'art 3', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 3', 'art 2', 'art 3', 'art 2', 'art 2', 'art 3', 'art 2', 'art 3', 'art 2', 'art 2', 'art 3', 'art 2']

EP2414211B1 - Steering column for motor vehicles - Google Patents
Steering column for motor vehicles Download PDF
EP2414211B1
EP2414211B1 EP20100711420 EP10711420A EP2414211B1 EP 2414211 B1 EP2414211 B1 EP 2414211B1 EP 20100711420 EP20100711420 EP 20100711420 EP 10711420 A EP10711420 A EP 10711420A EP 2414211 B1 EP2414211 B1 EP 2414211B1
EP20100711420
EP2414211A1 (en
Thorsten Hoog
Bernd Vom Hedt
2009-04-01 Priority to DE200910017054 priority Critical patent/DE102009017054A1/en
2010-03-30 Application filed by Leopold Kostal GmbH and Co KG filed Critical Leopold Kostal GmbH and Co KG
2010-03-30 Priority to PCT/EP2010/054222 priority patent/WO2010112512A1/en
2012-02-08 Publication of EP2414211A1 publication Critical patent/EP2414211A1/en
2013-01-09 Publication of EP2414211B1 publication Critical patent/EP2414211B1/en
The invention relates to a steering column for motor vehicles according to the preamble of claim 1.
There are known steering columns, which are part of so-called steer-by-wire steering devices. In such steering devices, the angular position of the steering wheel is detected by at least one sensor and fed to an evaluation unit which controls at least one actuator with which the steered wheels are actuated. So that the driver receives a haptic feedback regarding the steering operation despite such a steering device, the known steering column is provided with an actuator whose actuator shaft is rotatably connected to the steering shaft. The preparation of such a steering column is cumbersome and difficult, in particular, the axes of the actuator shaft and the steering shaft must be aligned exactly in order to avoid the occurrence of non-circularity when turning the steering shaft.
From the EP 1 862 371 A2 is a steering column according to the preamble of the main claim known. This is an electric power steering device with a steering assist motor whose motor shaft forms part of a multi-part steering spindle, wherein the parts of the steering shaft are displaceable relative to each other.
The invention has the object of providing the generic steering column in such a way that it can be easily assembled or manufactured and causes a short axial length of the entire steering column.
This object is achieved in the generic steering column according to the invention with the characterizing features of claim 1.
In the steering column according to the invention, the upper steering spindle part forms the actuator shaft. As a result, the steering column according to the invention builds very short, so that the steering column requires less installation space in the motor vehicle.
The small overall length of the steering column contributes when the upper steering spindle part is provided with an axial recess which is open towards one end and engages in the lower steering spindle part. The length of the recess determines the Verstellmaß by which the steering column can be adjusted in length to adapt to different sized driver in the vehicle.
The lower steering spindle part is advantageous using at least one sliding element on the inner wall of this recess. This slider allows easy axial displacement of the two steering spindle parts relative to each other in the length adjustment of the steering shaft.
The upper steering spindle part is advantageously accommodated in a housing which is displaceable relative to the lower steering spindle part in its axial direction. In this way, the upper steering spindle part can be easily moved together with this case in the length adjustment of the steering shaft.
Advantageously, the housing engages with a pipe socket in a bearing tube, which is advantageously rotatably mounted in a further housing. The rotatable bearing tube ensures that the steering spindle can be reliably turned when turning the steering wheel rotatably connected to the steering shaft.
The bearing tube is advantageously rotatably connected to the lower steering spindle part. If the steering wheel is rotated, then the bearing tube is rotated in the other housing on the two rotatably connected steering spindle parts. In this additional housing, the bearing tube can easily pivot bearings.
In an advantageous embodiment of the pipe socket of the first housing is provided with at least one sliding element, with which the pipe socket is located on the inner wall of the bearing tube. In case of a crash is over the steering wheel of the upper steering spindle part moved axially. The slider here ensures that the pipe socket relative to the bearing tube can be moved accordingly.
In a preferred embodiment, the further housing is arranged fixed to the vehicle, thus can not be moved relative to the vehicle.
The actuator is advantageously an electronically commutated DC motor.
The upper steering spindle part forms in this case a part of a rotor of this DC motor.
The invention will be explained in more detail with reference to an embodiment shown in the drawing. The drawing shows a schematic representation and in axial section a steering column according to the invention.
The steering column is provided for a motor vehicle steer-by-wire steering device, in which the wheels of a motor vehicle are steered by actuators, which are controlled by the second actuator / sensor unit described here. The steering column has a steering shaft 1, which has an upper steering spindle part 2 and a lower steering spindle part 3 rotatably connected thereto. The upper steering spindle part 2 has a connection end 4, which can be connected to a (not shown) steering wheel of the motor vehicle. The terminal end 4 advantageously has a toothing 5, with a reliable rotationally fixed connection is ensured with the steering wheel. The upper steering spindle part 2 protrudes into a housing 6, which is limited on the motor vehicle side in the axial direction of the steering spindle part 2 slidably. The housing 6 is provided on the outside with a corresponding longitudinal guide 7, which allows the limited displacement relative to a motor vehicle-side connection point 8.
In the housing 6, a drive motor 9 is housed, which is advantageously a synchronous machine. It has a stator 10 with a coil package 11 which is fixed to the inside of the housing 6. The stator 10 surrounds a rotor 13 to form an annular gap 12. It has permanent magnets 14, which are fastened to the rotor 13. The rotor 13 is attached to the upper steering spindle part 2. The upper steering spindle part 2 thus forms the rotor or motor shaft of the drive motor 9. In the housing 6, the upper steering spindle part 2 is rotatably supported by bearings 15, 16. The pivot bearings 15, 16 are advantageously arranged in the end walls 17, 18 of the housing 6.
The upper steering spindle part 2 is provided at its end remote from the connection end 4 with an axially extending recess 19, in which the lower steering spindle part 3 engages. It is rotatably connected to the upper steering spindle part 2 with the interposition of at least one annular sliding member 20.
On the end wall 17 of the housing 6, a tube 22 is fixed by means of an annular flange 21, which surrounds the lower steering spindle part 3 with a radial distance and the axis of which lies in the axis of the steering shaft 1. The inner diameter of the tube 22 is smaller than the outer diameter of the upper steering spindle part 2. As a result, an axial securing of the upper steering spindle part 2 is achieved in a simple manner. The tube 22 protrudes into a bearing tube 23 which is rotatably mounted in a housing 24. The tube 22 is at the interposition of at least one annular sliding element 25 on the inner wall of the bearing tube 23 at. The bearing tube 23 is reduced at its end remote from the housing 6 in diameter so that it rests against the free end of the lower steering spindle part 3. This reduced in diameter end portion 26 of the bearing tube 23 is rotatably supported by at least one bearing 27 in the housing 24. Advantageously, the bearing 27 is located in an end wall 28 of the housing 24. The bearing tube 23 is also rotatably supported in the housing 24 at its other, larger diameter end with a further bearing 29. The bearing 29 is advantageously located in a housing 6 facing end wall 30 of the housing 24. The housing 24 is in contrast to the housing 6 on the housing side fixed, which is indicated by the fixed connection point 31.
As an alternative to the solution shown, in which the tube 22 is immersed in the housing 24, also an outer encompassing of the tube 22, which can then be shown as an extension of the housing 6 to the sliding member 25 and the housing 2 is possible.
Furthermore, a design is conceivable in which the guide, which is represented by the tube 22 and the bearing tube 23, by a suitable other linear guide -. As a linear plain bearing - can be realized, so that there are greater degrees of freedom in the design of the housing 24.
To adjust the length of the steering shaft 1, the upper steering spindle part 2 can be moved axially relative to the lower steering spindle part 3. The axial relative position between the upper and lower steering spindle part 2, 3 is locked in a known manner. The recess 19 in the upper steering spindle part 2 is sufficiently long to ensure a sufficient adjustment for the individual adjustment of the length of the steering shaft 1. This adjustment also includes a lead for the way that covers the housing 6 in the event of a crash in the direction of the housing 24.
The tube 22 has in normal use of the steering column distance from the end portion 26 of the bearing tube 23. The slider 25 allows in a crash, that the tube 22 can be moved relative to the housing 24 in the axial direction of the steering shaft 1 with the housing 6. The forces that are necessary to move the housing 6 in the direction of the housing 24, can be defined by a not shown "crash element" (splitter tube, corrugated tube, inflated tube, etc.), between the housing 6 and the housing 24 and / or in the region of the hatched position between the guide 7 and the housing 6 is mounted. For the arrangement of the crash element between the housings 6 and 24, a coaxial position to the tube 22 and the steering spindle part 3 offers, it can but also in the area of the bearing tube 23 attached devices find use - here, for example, a hydraulic unit would be conceivable.
In or on the housing 6 a (not shown) control electronics is provided, with which the drive motor 9 can be controlled. The control electronics supplies to the actuators of the wheels signals corresponding to the steering angle, the steering speed or other steering factors.
Since the upper steering shaft part 2 simultaneously forms the motor shaft, there are no problems with the assembly of the steering column with respect to the axis alignment of the motor shaft and the steering shaft. When turning the steering shaft and thus the motor shaft thus occur no discontinuities due to a misalignment.
Steering column for motor vehicles, having a steering spindle which is composed of an upper steering spindle constituent (2) for connecting to a steering wheel and a lower steering spindle constituent (3), with both of the steering spindle constituents (2, 3) being slideable in relation to each other, and having an actuator (9) which is provided with an actuator shaft, characterised in that the upper steering spindle constituent (2) forms the actuator shaft.
Steering column according to Claim 1, characterised in that the upper steering spindle constituent (2) shows an axial recess (19) at its end in which the lower steering spindle constituent (3) engages.
Steering column according to Claim 2, characterised in that the lower steering spindle constituent (3) comes to rest on the inner wall of the recess (19) with the interposition of at least one sliding element (20).
Steering column according to any of Claims 1 to 3, characterised in that the upper steering spindle constituent (2) is accommodated in a housing (6) which can be displaced in relation to the lower steering spindle constituent (3).
Steering column according to Claim 4, characterised in that the housing (6) engages with a tube socket (22) in a bearing tube (23).
Steering column according to Claim 5, characterised in that the bearing tube (23) is rotatably supported in a further housing (24).
Steering column according to Claim 5 or Claim 6, characterised in that the bearing tube (23) is connected in a torque-proof manner to the lower steering spindle constituent (3).
Steering column according to any of Claims 5 to 7, characterised in that the tube socket (22) comes to rest on the inner wall of the bearing tube (23) with the interposition of at least one sliding element (25).
Steering column according to any of Claims 6 to 8, characterised in that the further housing (24) is arranged affixed to the vehicle.
Steering column according to Claim 6 or Claim 7, characterised in that the tube socket (22) encompasses a sliding element (25) and the further housing (24).
Steering column according to any of Claims 6 to 10, characterised in that the guide of the housing (6) to the further housing (24) is a linear bearing.
Steering column according to any of Claims 1 to 11, characterised in that the actuator (9) is a synchronous machine.
Steering column according to Claim 12, characterised in that the upper steering spindle constituent (2) is part of a rotor of the motor (9).
Steering column according to any of Claims 6 to 13, characterised in that the crash forces are defined by a unit mounted separately from the adjusting devices between the housing (6) and the further housing (24).
Steering column according to any of Claims 6 to 13, characterised in that the crash forces are defined by a unit within the range of the area encompassed by the further housing (24).
EP20100711420 2009-04-01 2010-03-30 Steering column for motor vehicles Active EP2414211B1 (en)
DE200910017054 DE102009017054A1 (en) 2009-04-01 2009-04-01 Steering column for motor vehicles
PCT/EP2010/054222 WO2010112512A1 (en) 2009-04-01 2010-03-30 Steering column for motor vehicles
EP2414211A1 EP2414211A1 (en) 2012-02-08
EP2414211B1 true EP2414211B1 (en) 2013-01-09
ID=42111912
EP20100711420 Active EP2414211B1 (en) 2009-04-01 2010-03-30 Steering column for motor vehicles
EP (1) EP2414211B1 (en)
DE (1) DE102009017054A1 (en)
WO (1) WO2010112512A1 (en)
DE102015213303A1 (en) 2015-07-15 2017-01-19 Thyssenkrupp Ag Feedback actuator for a steering device
CN108367771A (en) * 2015-12-08 2018-08-03 蒂森克虏伯普利斯坦股份公司 Steering column for steer-by-wire steering device
DE102019111993A1 (en) 2019-05-08 2020-01-02 Schaeffler Technologies AG & Co. KG Feedback actuator for a steering device
DE102018131204B3 (en) 2018-08-30 2020-01-02 Schaeffler Technologies AG & Co. KG Friction device for a feedback actuator of a steering device
DE102012011836A1 (en) 2012-06-14 2013-12-19 Volkswagen Aktiengesellschaft Power steering apparatus for motor car, has drive unit that is movable in translation relative to steering column when drive unit reaches maximum fixing force that is parallel to longitudinal axis of steering column
JP2016159895A (en) * 2015-03-05 2016-09-05 株式会社ショーワ Reaction force actuator and steering gear
DE102017008650A1 (en) 2017-09-14 2018-06-07 Daimler Ag Steer-by-wire steering device with increased operational safety
DE102017008672A1 (en) 2017-09-14 2018-06-07 Daimler Ag Dynamic stop for a steer-by-wire steering system
IT201700121836A1 (en) * 2017-10-26 2019-04-26 Ferrari Spa Steering system of a type road vehicle "steer by wire" and provided with an electric motor to apply a torque feedback to the steering wheel
DE102018209236A1 (en) 2018-06-11 2019-12-12 Thyssenkrupp Ag Steering column with feedback actuator
WO2020043234A1 (en) 2018-08-30 2020-03-05 Schaeffler Technologies AG & Co. KG Feedback actuator for a steering mechanism with a direct drive
DE102018131185A1 (en) 2018-08-30 2020-03-05 Schaeffler Technologies AG & Co. KG Feedback actuator for a steering device with a steering resistance system
FR3086254A1 (en) * 2018-09-26 2020-03-27 Psa Automobiles Sa Steering control equipment for motor vehicle
DE10249718A1 (en) * 2002-10-25 2004-05-06 Daimlerchrysler Ag Motor vehicle steering device has motor unit coaxial to telescopic shaft and with hollow motor shaft connected to or forming further shaft, end of hollow telescopic shaft inserted into motor unit
JP5120601B2 (en) * 2007-04-27 2013-01-16 株式会社ジェイテクト Shock absorbing steering device
DE102008036730B4 (en) * 2008-08-07 2019-05-16 Ebm-Papst St. Georgen Gmbh & Co. Kg Actuator unit for a motor vehicle steer-by-wire steering device
2009-04-01 DE DE200910017054 patent/DE102009017054A1/en not_active Withdrawn
2010-03-30 WO PCT/EP2010/054222 patent/WO2010112512A1/en active Application Filing
2010-03-30 EP EP20100711420 patent/EP2414211B1/en active Active
US10633013B2 (en) 2015-12-08 2020-04-28 Thyssenkrupp Presta Ag Steering column for a steer-by-wire steering device
WO2010112512A1 (en) 2010-10-07
DE102009017054A1 (en) 2010-10-07
EP2414211A1 (en) 2012-02-08
US20190092375A1 (en) 2019-03-28 Rotation control assembly for a steering column
WO2009101788A1 (en) 2009-08-20 Vehicle steering device
CN108367771A (en) 2018-08-03 Steering column for steer-by-wire steering device
EP2251242B1 (en) 2014-04-16 Vehicular steering device and manufacturing method of same
EP1693281B1 (en) 2009-03-18 Motor-driven power steering apparatus
CN102822034B (en) 2015-05-27 Steering device
JP5252939B2 (en) 2013-07-31 Motor control device and vehicle steering apparatus provided with the same
JP5683876B2 (en) 2015-03-11 Steer-by-wire equipment
JP4808421B2 (en) 2011-11-02 Resolver and vehicle steering system
JP2009530595A (en) 2009-08-27 Detection device for detecting angular position, electric motor, steering column, and reduction gear
US20090044999A1 (en) 2009-02-19 Steering Wheel with Stationary Hub Mounted Portion
JP4877384B2 (en) 2012-02-15 Steering device
Owner name: LEOPOLD KOSTAL GMBH & CO. KG
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Owner name: LEOPOLD KOSTAL G.M.B.H. & CO. KG