Patent ID: 6215198
Filing Date: 2001-04-10
Classification: B60K,B60L,B60W,Y02T,Y10S

Abstract:
A generating control device for hybrid vehicle comprising:an electric motor for driving the hybrid vehicle;a battery for supplying the electric motor with electrical energy;a generator for generating electrical energy for the electric motor and the battery;an internal combustion engine for driving the generator; anda controller changing operations of the generator and the internal combustion engine in accordance with a plurality of operational modes for preventing the battery from deteriorating, the controller being responsive to a temperature of the battery; wherein,when the temperature of the battery amounts to a battery protective temperature a battery protection mode is set,when the temperature of the battery does not amount to the battery protective temperature, a state of charge is not less than a predetermined charged amount and a required output of the electric motor can be satisfied by using only a battery output, a mode in which the internal combustion engine is stopped and a generating operation of the generator is stopped is set,when the temperature of the battery does not amount to the battery protective temperature, the state of charge is not more than the predetermined charged amount and a rated generating energy of the generator satisfies a required output of the electric motor, a rated generating mode is set,when the temperature of the battery does not amount to the battery protective temperature, the state of charge is not more than the predetermined charged amount and the rated generating energy of the generator does not satisfy the required output of the electric motor, a followed generating mode is set,the battery protection mode controls a rotation of the internal combustion engine to be constant, controls an output of the generator to follow the required output of the electric motor, and prohibits a charging and discharging operation of the battery,the rated generating mode controls the rotation of the internal combustion engine to be constant and controls the output of the generator to be constant, andthe followed generating mode controls a torque of generator to be constant and controls the rotation of the internal combustion engine to follow the required output of the electric motor.