Vehicle control device and vehicle control method
AssigneeJATCO Ltd
InventorsSeiji Kasahara, Hideshi Wakayama, Naohiro Hoshi
Life of this patent
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Abstract
A vehicle control device for controlling a vehicle with a drive source, a friction transmission mechanism provided between the drive source and drive wheels and a fluid transmission mechanism provided between the friction transmission mechanism and the drive source includes a suppression unit configured to suppress a decrease of a speed ratio of the fluid transmission mechanism if the speed ratio becomes negative when the vehicle starts.
Claims12
A vehicle control device for controlling a vehicle with a drive source, a friction transmission mechanism provided between the drive source and drive wheels and a fluid transmission mechanism provided between the friction transmission mechanism and the drive source, comprising:
- a controller configured to suppress a decrease of a speed ratio of the fluid transmission mechanism before a rotation direction of an input shaft of the fluid transmission mechanism and a rotation direction of an output shaft thereof become opposite to each other if the speed ratio becomes negative when the vehicle starts.
A vehicle control method for controlling a vehicle with a drive source, a friction transmission mechanism provided between the drive source and drive wheels and a fluid transmission mechanism provided between the friction transmission mechanism and the drive source, comprising:
- suppressing a decrease of a speed ratio of the fluid transmission mechanism before a rotation direction of an input shaft of the fluid transmission mechanism and a rotation direction of an output shaft thereof become opposite to each other if the speed ratio becomes negative when the vehicle starts.
A vehicle control device for controlling a vehicle with a drive source, a friction transmission mechanism provided between the drive source and drive wheels and a fluid transmission mechanism provided between the friction transmission mechanism and the drive source, comprising:
- determining means for determining whether a rotation direction of an input shaft of the fluid transmission mechanism and a rotation direction of an output shaft thereof become opposite to each other, and
- suppression means for suppressing a decrease of a speed ratio of the fluid transmission mechanism before the rotation direction of the input shaft and the rotation direction of the output shaft become opposite to each other if the speed ratio becomes negative when the vehicle starts.
Dependencies are inferred from the claim text.