Vehicle behavior control system
AssigneeNissan Motor Co., Ltd.
InventorsHiroshi Tsunehara, Yoshiki Yasuno, Kensuke Fukuyama
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Abstract
A vehicle behavior control system comprises a controller for determining a sensed steering angle from a steering amount signal and a neutral detection signal from a steering angle sensor, and performs a behavior control operation to reduce a deviation of a sensed actual motion variable such as a vehicle yaw rate from a target motion variable determined from the sensed steering angle. When the neutral detection signal is not available just after a start of the engine, the controller determines the target motion variable from an estimated steering angle instead of the sensed steering angle, and immediately starts controlling the vehicle behavior without delay by, for example, controlling the braking forces of the individual wheels.
Claims15
A control system for controlling behavior of a vehicle in accordance with a deviation of a sensed motion variable indicative of the behavior of the vehicle, from a target motion variable determined from a sensed steering angle with respect to a neutral steering position of a steering wheel, the control system comprising:
- a control section for determining the target motion variable from an estimated steering angle in place of the sensed steering angle when the neutral steering position is not detected, and determination of the sensed steering angle based on the neutral position is not feasible.
A vehicle control system comprising:
- an output section for controlling behavior of a vehicle in response to a behavior control signal;
- an input section for collecting input information on an operating condition of the vehicle, the input section sensing a straight ahead neutral steering position and a steering amount of a steering system of the vehicle;
- and
- a control section for controlling the behavior of the vehicle by producing the control signal in accordance with an actual steering angle determined from the steering amount and the neutral position, and for replacing the actual steering angle by an estimated steering angle when the neutral steering position is not detected.
Dependencies are inferred from the claim text.