Vehicle travel control device
AssigneeDenso Corporation
InventorsMOTOKI TACHIIRI, YUTA SUZUKI
Life of this patent
Estimating the term…
Abstract
A vehicle travel control device controls an independent turn wheel vehicle or a swivel three-wheeled vehicle having three or more wheels. The device instructs a turn with a normal driving operation, instructs a pivot turn for setting one wheel as a turning center and driving other wheels using a target instruction value, turns each wheel individually according to the turning center of the pivot turn, and brakes and drives each wheel individually. Further, the device acquires vehicle characteristics from a vehicle characteristic storage device, and calculate a turn wheel angle and a drive direction of each wheel based on the target instruction value to execute the pivot turn of the vehicle.
Claims6
A vehicle travel control device for controlling a vehicle travel in an independent turn wheel vehicle in which three or more wheels can be turned independently, or a swivel three-wheeled vehicle that has two front wheels and one rear wheel and whose rear wheel can be turned freely, the vehicle travel control device comprising:
- a turn instruction unit that instructs a turn with a normal driving operation;
- a pivot turn instruction unit that instructs a pivot turn for setting one of three or more wheels as a turning center and driving other wheels when turning the vehicle, using a target instruction value;
- a turn wheel angle control unit that turns each of three or more wheels individually according to the turning center of the pivot turn instructed by the pivot turn instruction unit;
- and
- a brake and drive force control unit that brakes and drives each of three or more wheels individually, wherein:
- the turn wheel angle control unit and the brake and drive force control unit acquires vehicle characteristics from a vehicle characteristic storage device;
- and
- the turn wheel angle control unit and the brake and drive force control unit calculate a turn wheel angle and a drive direction of each of three or more wheels based on the target instruction value to execute the pivot turn of the vehicle.
A vehicle travel control device for controlling a vehicle travel in an independent turn wheel vehicle in which three or more wheels can be turned independently, or a swivel three-wheeled vehicle that has two front wheels and one rear wheel and whose rear wheel can be turned freely, the vehicle travel control device comprising:
- at least one of (i) a circuit and (ii) a processor having a memory storing computer program code, wherein:
- the at least one of the circuit and the processor having the memory is configured to cause the vehicle travel control device to provide at least one of:
- a turn instruction unit that instructs a turn with a normal driving operation;
- a pivot turn instruction unit that instructs a pivot turn for setting one of three or more wheels as a turning center and driving other wheels when turning the vehicle, using a target instruction value;
- a turn wheel angle control unit that turns each of three or more wheels individually according to the turning center of the pivot turn instructed by the pivot turn instruction unit;
- and
- a brake and drive force control unit that brakes and drives each of three or more wheels individually;
- the turn wheel angle control unit and the brake and drive force control unit acquires vehicle characteristics from a vehicle characteristic storage device;
- and
- the turn wheel angle control unit and the brake and drive force control unit calculate a turn wheel angle and a drive direction of each of three or more wheels based on the target instruction value to execute the pivot turn of the vehicle.
Dependencies are inferred from the claim text.