Patent ID: 6583592
Filing Date: 2003-06-24
Classification: B60L,Y02T

Abstract:
A control apparatus for a hybrid vehicle having an engine and an electric motor disposed therein, the electric motor having both driving and power-generating functions and being directly connected to the engine mounted on the hybrid vehicle, comprising:a main battery which supplies driving electric power to said electric motor and is charged by generated electric power from said electric motor; a temperature sensor for detecting a temperature of the main battery; and a controller that controls to prohibit power-generation driving by said electric motor, wherein 1) when the main battery temperature detected by said temperature sensor is less than a set temperature, 2) when said electric motor is power-generation driving to charge said main battery, and 3) when an open-circuit voltage value of said main battery exceeds a set voltage value, then a power-generation torque order value is reduced gradually, and then, when a generated electric power value of said electric motor is less than a set electric power value, said controller controls to prohibit power-generation driving of said electric motor.