Steering control with variable damper assistance and method implementing the same
First Claim
Patent Images
1. An automotive steering wheel control system, comprising:
- a steering wheel;
a magnetorheological damper in communication with said steering wheel; and
a road wheel control system operably connected to said magnetorheological damper;
wherein said magnetorheological damper controls said steering wheel in response to said magnetorheological damper receiving a signal from said road wheel control system.
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Abstract
One aspect of the present invention regards an automotive steering wheel control system having a steering wheel, a magnetorheological damper in communication with the steering wheel and a road wheel control system operably connected to the magnetorheological damper where the magnetorheological damper controls the steering wheel in response to a torque signal from the road wheel control system.
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Citations
20 Claims
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1. An automotive steering wheel control system, comprising:
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a steering wheel;
a magnetorheological damper in communication with said steering wheel; and
a road wheel control system operably connected to said magnetorheological damper;
wherein said magnetorheological damper controls said steering wheel in response to said magnetorheological damper receiving a signal from said road wheel control system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
said sensor in communication with said magnetorheological damper; and
said sensor sensing a steering wheel angle from said steering wheel;
wherein said sensor generates a steering wheel angle signal based on said sensed steering wheel angle.
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3. The automotive steering wheel control system of claim 2, further comprising a steering wheel controller that receives said steering wheel angle signal from said sensor.
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4. The automotive steering wheel control system of claim 3, wherein said steering wheel controller receives a road wheel torque signal from said road wheel control system.
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5. The automotive steering wheel control system of claim 3, wherein said steering wheel controller receives a steering wheel reference angle signal from said road wheel control system.
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6. The automotive steering wheel control system of claim 3, wherein said road wheel control system receives a road wheel reference angle signal from said steering wheel control system.
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7. The automotive steering wheel control system of claim 3, further comprising a magnetorheological amplifier that amplifies a damper control signal from said steering wheel controller and provides said amplified damper control signal to said magnetorheological damper.
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8. The automotive steering wheel control system of claim 3, further comprising:
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a motor in communication with said magnetorheological damper; and
a motor amplifier that receives a motor control signal from said steering wheel controller and provides an amplified motor control signal to said motor.
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9. The automotive steering wheel control system of claim 8, wherein said motor, said magnetorheological damper, said sensor and said steering wheel care connected to one another by a shaft.
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10. The automotive steering wheel control system of claim 9, wherein said shaft rotates.
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11. A steering wheel control system for a vehicle, comprising:
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a first control subsystem comprising a magnetorheological damper, a steering wheel motor responsive to a controlled input torque signal, said first control subsystem generating a steering wheel torque signal;
a second control subsystem comprising a position loop compensator, a gain adjustable function element responsive to an output from said position loop compensator, said steering wheel motor and a motor amplifier receiving an reference signal from said gain adjustable function element and generating a motor torque, said second control subsystem generating a steering wheel angle signal; and
a third control subsystem comprising a steering ratio function element and a road wheel control subsystem, said steering ratio function element receiving said steering wheel angle signal and generating a road wheel reference angle signal, said road wheel control subsystem receiving said road wheel reference angle signal and generating a road wheel angle signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. An automotive steering apparatus control system, comprising:
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a steering wheel;
a magnetorheological damper in communication with said steering wheel; and
a magnetorheological damper control for an automotive steering control system, including;
a motor amplifier receiving a reference signal and generating a motor torque signal;
a motor receiving an effective torque signal based on the sum of a magnetorheological torque signal, a driver action torque signal and said motor torque signal;
said motor generating steering wheel rotation based on said effective torque signal;
a magnetorheological damper receiving an amplified control signal from a magnetorheological amplifier;
said magnetorheological amplifier receiving a road wheel torque control input signal and generating said amplified control signal based on said road wheel torque control input signal;
said magnetorheological damper generating said magnetorheological torque signal period. - View Dependent Claims (20)
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Specification