| 摘要 |
PROBLEM TO BE SOLVED: To provide a brake for cars capable of large-power regenerative braking, suppressing the vibration of a car and voltage increase of its battery. SOLUTION: When the car is decelerated, power generating torque and mechanical braking torque are changed periodically, and the frequency and phase of the period change component of mechanical braking torque are determined, so that a resultant torque variation being the sum of both period change components may be smaller than the period change component of the power generating torque. As the result of this, it becomes possible to perform large- current charging of the battery suppressing rapid increase of its voltage, by the adoption of an intermittent battery charging system. Besides, car vibration is reduced, and driving feeling is improved by reducing the period change of the whole braking torque. |
