Vehicle steering control device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsYoji Kunihiro, Takahiro Kojo
Life of this patent
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Abstract
A vehicle steering control device includes a turning angle varying device serving as a first turn response change device for changing a gain of yaw rate of a vehicle with respect to steering operation, and a rear wheel steering device serving as a second turn response change device for changing a gain of lateral acceleration of the vehicle with respect to the steering operation. Under a state in which magnitude of curvature of a travel path is equal to or less than a first reference value, at least one of the turning angle varying and rear wheel steering devices is controlled so that a ratio of the gain of the lateral acceleration to the gain of the yaw rate increases when a width of the travel path is small compared with when the width of the travel path is large.
Claims14
A vehicle steering control device, comprising:
- first turn response varying means for changing a gain of a yaw rate of a vehicle with respect to a steering operation;
- second turn response varying means for changing a gain of a lateral acceleration of the vehicle with respect to the steering operation;
- and
- control means for controlling the first turn response varying means and the second turn response varying means,
- the control means being configured to control, under a state in which a magnitude of a curvature of a travel path is equal to or less than a reference value, at least one of the first turn response varying means and the second turn response varying means so that a ratio of the gain of the lateral acceleration to the gain of the yaw rate increases when a width of the travel path is small compared with when the width of the travel path is large.
A vehicle steering control device, comprising:
- first turn response varying means for changing a derivative gain of a yaw rate of a vehicle with respect to a steering operation speed;
- second turn response varying means for changing a derivative gain of a lateral acceleration of the vehicle with respect to the steering operation speed;
- and
- control means for controlling the first turn response varying means and the second turn response varying means,
- the control means being configured to control, under a state in which a magnitude of a curvature of a travel path is equal to or more than a reference value, at least one of the first turn response varying means and the second turn response varying means so that a ratio of the derivative gain of the lateral acceleration to the derivative gain of the yaw rate increases when a width of the travel path is small compared with when the width of the travel path is large.
Dependencies are inferred from the claim text.