| 摘要 |
PURPOSE:To improve the power efficiency by so deciding a target generating energy in response to a requested driving power from a motor as to reduce the discharge power of a battery when a vehicle is in a slow accelerating state. CONSTITUTION:When the slow accelerating state of a vehicle is detected by an ECU 28, a target generating energy is so decided according to the driving power required from a motor 10 as to reduce the discharge power of a battery 16. The slow accelerating state of the vehicle can be detected by the change of an accelerator S or the charge state, and the driving power required from the motor 10 can be known on the basis of a vehicle speed SPD (number of revolutions of the motor N) or an accelerator opening S (torque command). Thus, when the vehicle is in the slow accelerating state, the calculation of the mean input power to the motor 10 is not conducted, and hence the response delay of the generating energy control is reduced, and a difference between the input voltage and the generating energy to the motor 10 is reduced. In this manner, the power efficiency as the entire vehicle can be improved. |
