Patent ID: 11897301
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 5:
6. A vehicle travel state control method of controlling a travel state of a vehicle by controlling a control force generation device configured to generate a control force in an up-down direction for suppressing vibration of a sprung portion of the vehicle between at least a pair of right and left wheels and a vehicle body portion corresponding to positions of the wheels, the method comprising:
vibration suppression control including a step of acquiring road surface displacement-related information related to up-down displacements of a road surface, a step of determining predicted wheel passage positions through which the wheels are predicted to pass, a step of computing a target vibration suppression control force for reducing vibration of the sprung portion based on the road surface displacement-related information when the wheels pass through the predicted wheel passage positions, and a step of controlling the control force generation device based on the target vibration suppression control force when the wheels pass through the predicted wheel passage positions; and
roll control including a step of acquiring a roll index value that indicates a degree of roll of the sprung portion, a step of computing a target roll control force for reducing the roll of the sprung portion based on the roll index value when the roll index value is equal to or more than a reference value, and a step of controlling the control force generation device based on the target roll control force, wherein the control force generation device is controlled based on the target vibration suppression control force and the target roll control force which are obtained after performing at least one of a reduction correction for the target vibration suppression control force and an increase correction for the target roll control force when the vibration suppression control and the roll control are executed concurrently.