Patent ID: 8989964
Filing Date: 2015-03-24
Classification: B62D,Y02T

Abstract:
1. A vehicle speed control device comprising: a steering device which is configured to steer left and right wheels in accordance with an operation of a steering operation member of a vehicle by a driver, and which is configured, when the steering operation member is operated from a neutral position corresponding to a straight traveling of the vehicle, adjust an inner wheel steering angle which is a steering angle of a turning inside wheel among the left and right steering wheels and an outer wheel steering angle which is a steering angle of a turning outside wheel such that the inner wheel steering angle becomes greater than the outer wheel steering angle; a first electric motor configured to apply power to an axle of the right wheel among the left and right wheels of the vehicle to thereby adjust driving torque of the right wheel; a second electric motor configured to apply power to an axle of the left wheel among the left and right wheels of the vehicle to thereby adjust driving torque of the left wheel, wherein an output shaft of the first electric motor and an output shaft of the second electric motor are not mechanically connected, and wherein the first electric motor and the second electric motor are configured to adjust propulsive force of the vehicle; an operation amount acquisition unit configured to acquire an acceleration operation amount of an acceleration operation member by the driver of the vehicle; a steering angle acquisition unit configured to acquire a steering angle which is a value between the inner wheel steering angle and the outer wheel steering angle; a vehicle speed acquisition unit configured to acquire an actual speed of the vehicle; and a control unit configured to control the first electric motor and the second electric motor on the basis of the acceleration operation amount, the actual speed, the steering angle, and a steering geometry indicating a geometric relationship between the steering angle and a turning center of the vehicle.