Toyota Jidosha Kabushiki Kaisha

Keisuke Ushida

Kunihiko Usui

Ryosuke Ikemura

Akio Sugawara

A driving force control system that controls a driving force in line with a driver's intension to propel a vehicle on a slippery road surface without wheel slip. A controller is configured to obtain individual relations of a slip ratio on a road surface to parameters including the driving force, a running resistance of the vehicle, and an accelerating force of the vehicle, and to control the driving force based on the obtained relations of the slip ratio to each of said parameters.

Driving force control system for vehicle

A drive control system for a hybrid vehicle configured to prevent backward coasting on an uphill grade even when an engine torque cannot be delivered to drive wheels. When the hybrid vehicle is propelled by delivering engine torque to rear wheels on an uphill grade, the drive control system determines an occurrence of a failure in which the torque cannot be delivered from the engine to the rear wheels. If the occurrence of the failure is determined, the drive control system executes a hill hold control to deliver torque to establish a required drive force from a motor to front wheels while disengaging an engagement device.

Drive control system for hybrid vehicle

A drive force control system for a vehicle configured to allow a driver to find out a steering angle at which a wheel grips a road surface. In the vehicle, a torque distribution ratio to a pair of wheels turned by a steering wheel and another pair of wheels is changeable. A controller restricts a control to change the torque distribution ratio in the event of a slip of the pair of wheels, if a steering angle of the pair of wheels is changed to allow the pair of wheels to grip a road surface.

Growing community of inventors

Shizuoka-ken, Japan

Keisuke Ushida