Vehicle control system
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHiroki FURUTA
Life of this patent
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Abstract
The vehicle includes an actuator that applies a vertical control force to the suspension of the wheel. The vehicle control system performs damping control to control the actuator to suppress vibration of the sprung structure on the wheels. The damping control includes rear preview control. The rear preview gain is a gain of the rear preview control. The vehicle control system sets the rear preview gain when the vehicle speed is the first speed lower than the rear preview gain when the vehicle speed is the second speed higher than the first speed.
Claims5
A vehicle control system to be applied to a vehicle including an actuator that applies a control force in an up-down direction to a suspension of a wheel, the vehicle control system comprising one or more processors that control the actuator to execute vibration suppression control for suppressing vibration of a sprung structure on the wheel, wherein:
- the vibration suppression control includes rear preview control;
- the rear preview control includes
- acquiring a front wheel up-down motion parameter related to up-down motion caused when a front wheel passes through a first position based on a measurement result from a sensor mounted on the vehicle, and
- controlling the actuator so as to suppress the vibration caused when a rear wheel passes through a target position corresponding to the first position based on the front wheel up-down motion parameter;
- a rear preview gain is a gain of the rear preview control;
- and
- the one or more processors are configured to set the rear preview gain at a time when a speed of the vehicle is a first speed to be lower than the rear preview gain at a time when the speed is a second speed higher than the first speed.
Dependencies are inferred from the claim text.