| 摘要 |
PURPOSE:To prevent collision effectively by producing a brake operation signal, when the processing results of detection signal of an obstacle sensor mounted on an electric automobile matches with predetermined conditions, thereby exerting a brake force onto a motor. CONSTITUTION:Output of power supplies 16, 17 are controlled by means of motor drivers 181-192, based on a command fed from a controller 15, to drive motors 131-142 individually and the rotational speeds thereof are fed to the controller 15 through a resolver (not shown). The controller 15 is provided with an obstacle sensor 30 in addition to conventional speed sensor 31, a steering angle sensor 32, a drive/reverse indication switch 33, an accelerator opening sensor 34 and a brake sensor 35. When the obstacle sensor 30 detects an obstacle, the controller 15 operates the direction and the distance of the obstacle and then exert brake force onto the motors 131-142 thus steering the motor car. According to the constitution, an against an object can be avoided effectively. |
