Vehicle steering controller and method
AssigneeNissan Motor Co., Ltd.
InventorsJunji Tsutsumi, Toshiaki Kasahara, Yuusuke Katou
Life of this patent
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Abstract
A vehicle steering device and method for controlling steering of a steer-by-wire vehicle. A steering instrument receives input from a driver and a turning device turns the wheel(s). A selectively engageable backup clutch is positioned between the steering instrument and the turning device. Whether or not the backup clutch is engaged is based a steering state signal from the steering instrument and a turning state signal from the turning device.
Claims22
A vehicle steering device for steering at least one wheel of a vehicle, the steering device comprising:
- a steering instrument operable to receive input from a driver;
- a turning device operable to turn the at least one wheel;
- a selectively engageable backup clutch positioned between the steering instrument and the turning device;
- and
- a controller configured to judge whether the backup clutch is engaged based on a steering state signal from the steering instrument and a turning state signal from the turning device.
A vehicle steering device for at least one wheel, the steering device comprising:
- steering means for receiving instructions for the at least one wheel from a driver;
- turning means for turning the at least one wheel responsive to the steering means;
- clutch means releasably engageable between the steering means and the turning means for steering the at least one wheel when the clutch means is engaged;
- steering detection means for detecting a steering state of the steering means;
- turning detection means for detecting a turning state of the turning means;
- and
- judgment means for judging whether the clutch means is engaged based on the steering state and the turning state.
A vehicle steering control method for controlling at least one wheel using a steer-by-wire steering system including a steering instrument and a turning device responsive to signals from the steering instrument and a releasably engageable backup clutch between the steering instrument and the turning device, the method comprising:
- detecting a steering state signal from the steering instrument;
- detecting a turning state signal from the turning device;
- and
- judging whether the backup clutch is engaged based on the steering state signal and the turning state signal.
Dependencies are inferred from the claim text.