Patent ID: 6077186
Filing Date: 2000-06-20
Classification: B60K,B60L,B60W,F16H,Y02T,Y10S,Y10T

Abstract:
A drive control system for starting an internal combustion engine of a hybrid vehicle running while transmitting the output of an electric motor to a power transmission line for the run, by coupling the internal combustion engine to the power transmission line, comprising:start demand deciding means for deciding a demand for the start of said internal combustion engine; andassist setting means for raising the output torque of said electric motor, when the demand for starting said internal combustion engine is decided by said start demand deciding means, by a torque corresponding to one of the following:(a) a motoring torque necessary for rotating said internal combustion engine; and(b) a summed torque of said motoring torque,with the addition of an inertia torque according to the changing rate of the revolution speed of said internal combustion engine, wherein said assist setting means includes means for determining said motoring torque on the basis of a map determining a torque necessary for rotating said internal combustion engine for each revolution speed of said internal combustion engine.