An electric steering system includes a steering wheel and a first housing in which a steering shaft is arranged and rotatably mounted to a motor vehicle. A locking device is provided to lock the steering shaft at conclusion of a rotation as limitation of a steering angle input. The locking device in
An electric steering system includes a steering wheel and a first housing in which a steering shaft is arranged and rotatably mounted to a motor vehicle. A locking device is provided to lock the steering shaft at conclusion of a rotation as limitation of a steering angle input. The locking device includes a second housing which is connected in fixed rotative engagement with the first housing, and a locking bar configured for engagement in the steering shaft and arranged in the second housing such as to impact the steering shaft, when the steering shaft moves in relation to the second housing in the event of a crash, and to deform the first housing.
대표청구항▼
1. An electric steering system, comprising: a steering wheel;a first housing;a steering shaft arranged in the first housing and rotatably mounted to a motor vehicle; anda first locking device configured to lock the steering shaft at conclusion of a rotation as limitation of a steering angle input, s
1. An electric steering system, comprising: a steering wheel;a first housing;a steering shaft arranged in the first housing and rotatably mounted to a motor vehicle; anda first locking device configured to lock the steering shaft at conclusion of a rotation as limitation of a steering angle input, said first locking device including a second housing connected in fixed rotative engagement with the first housing, and a locking bar configured for engagement in the steering shaft and arranged in the second housing such as to impact the first housing, when the second housing moves in relation to the first housing in the event of a crash, and to deform the first housing. 2. The steering system of claim 1, wherein the locking bar is arranged such that part of the first housing, when collapsing as a result of the crash, is slashed by the locking bar in a defined manner. 3. The steering system of claim 1, wherein the first housing has perforations along a movement path of the locking bar. 4. The steering system of claim 1, further comprising rolling-contact bearings configured to support the steering shaft on the first housing, said steering shaft having a collar disposed on a steering-wheel proximate side of one of the rolling-contact bearings, said first housing having a stop collar disposed on a steering-wheel distal side of the one of the rolling-contact bearings. 5. The steering system of claim 1, wherein the first locking device has a guide bore which extends perpendicular to the steering shaft, said locking bar being arranged in the guide bore for movement in an axial direction. 6. The steering system of claim 1, wherein the first locking device is configured to lock the steering shaft at the conclusion of a rotation in a first rotation direction of the steering wheel, and further comprising a second locking device configured to lock the steering shaft at the conclusion of a rotation in a second opposite rotation direction of the steering wheel, said first and second locking devices being selectively actuatable. 7. The steering system of claim 6, wherein actuation of the first and second locking devices is dependent on an occurrence of a crash situation. 8. The steering system of claim 7, wherein actuation of the first and second locking devices is dependent on a deployment of an airbag. 9. The steering system of claim 1, further comprising a solenoid configured to actuate the locking bar. 10. The steering system of claim 1, further comprising a control unit operably connected to the locking bar. 11. An electric steering system, comprising: a steering wheel;a first housing;a steering shaft arranged in the first housing and rotatably mounted to a motor vehicle; anda first locking device configured to lock the steering shaft at conclusion of a rotation as limitation of a steering angle input, said first locking device including a second housing connected in fixed rotative engagement with the first housing, and a locking bar configured for engagement in the steering shaft and arranged in the second housing such that the locking bar impacts the steering shaft, when the steering shaft moves in relation to the second housing in the event of a crash, and thereby undergoes a deformation. 12. The steering system of claim 11, wherein the steering shaft has a stop for interaction with the locking bar such that the stop deforms the locking bar, as the steering shaft collapses in the event of a crash. 13. The steering system of claim 12, further comprising a second locking device having a locking bar arranged at a distance to the locking bar of the first locking device such that the locking bar of the first locking device and the locking bar of the second locking device are deformed by the stop successively, as the steering shaft collapses in the event of a crash. 14. The steering system of claim 12, wherein the locking bar of the first locking device and the locking bar of the second locking device are arranged in opposing staggered relationship. 15. The steering system of claim 11, wherein the first locking device has a guide bore which extends perpendicular to the steering shaft, said locking bar being arranged in the guide bore for movement in an axial direction. 16. The steering system of claim 11, wherein the first locking device is configured to lock the steering shaft at the conclusion of a rotation in a first rotation direction of the steering wheel, and further comprising a second locking device configured to lock the steering shaft at the conclusion of a rotation in a second opposite rotation direction of the steering wheel, said first and second locking devices being selectively actuatable. 17. The steering system of claim 16, wherein actuation of the first and second locking devices is dependent on an occurrence of a crash situation. 18. The steering system of claim 16, wherein actuation of the first and second locking devices is dependent on a deployment of an airbag. 19. The steering system of claim 11, further comprising a solenoid configured to actuate the locking bar. 20. The steering system of claim 11, further comprising a control unit operably connected to the locking bar.
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이 특허에 인용된 특허 (3)
Charles Albert Spellman, Absolute angle sensor for multi-turn shaft.
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