| 摘要 |
PURPOSE: To improve the recovery percentage of braking energy and the feeling of a brake pedal by finding the decelerated result of a drive wheel based on the detected rotating speed of the drive wheel and deciding the decreasing amount of the regenerative braking force in accordance with the found deceleration. CONSTITUTION: When a vehicle is not stopped and a brake switch 20 is turned on, an ECU 16 calculates a regenerative torque commanding value based on the pressure of a master cylinder(MC) or wheel cylinder(WC). The calculated commanding value is used for the control of an inverter 12 after the value is corrected to a smaller value. At the time of correcting the commanding value, a car body speed sensor 44 detects the car body speed V of the vehicle and a wheel speed sensor 42 detects the wheel speed Vωof a drive wheel and an ECU 16 reads the detected speeds. At the time of reading the speeds, the ECU 16 calculates the difference between the speeds. Then the ECU 16 finds the differentiated value of the wheel speed Vωnamely, the deceleration of the drive wheel. Thereafter, the ECU 16 calculates the decreasing amount of the regenerative torque commanding value by utilizing the values thus found. Therefore, the drive wheel is released from a locked state. |
