Power steering system with vehicle braking state input for vibration reduction
First Claim
1. A method for power steering a motor vehicle comprising the steps of:
- sensing a braking state of the motor vehicle;
determining a damping torque to be applied to a steering system of the motor vehicle to suppress mechanical vibrations of the steering system caused by activation of a braking system;
activating a motor to apply the damping torque to the steering system.
2 Assignments
0 Petitions
Accused Products
Abstract
A power steering system in which an electric motor (9) makes available a damping torque to a steering system via a mechanical transmission (4). The transmission (4) is arranged between the steering wheel (2) and a steering rack (5). The electric motor (9) is actuated by a control unit (1) in accordance with the steering torque sensed by a sensor (3) and the vehicle speed sensed by a sensor (10). In addition, a damping module (8) of the control unit (1) receives binary or continuous signals relating to the braking state, in particular relating to the brake activation (11) and to cornering (9). By means of these signals the damping torque which is generated by the electric motor (9) can be adapted in such a way that vibrations which are caused by unequal wear of the brakes in the steering system are reduced.
32 Citations
18 Claims
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1. A method for power steering a motor vehicle comprising the steps of:
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sensing a braking state of the motor vehicle;
determining a damping torque to be applied to a steering system of the motor vehicle to suppress mechanical vibrations of the steering system caused by activation of a braking system;
activating a motor to apply the damping torque to the steering system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A vibration damping system for a motor vehicle having a braking system and a steering system comprising:
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at least one sensor detecting a braking state of the vehicle and generating at least one signal indicating the braking state;
a control unit receiving the signal from the sensor and determining a damping torque to be applied to the steering system to suppress mechanical vibrations of the steering system caused by activation of the braking system; and
a motor activated by the control unit to apply the damping torque to the steering system. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification