Patent ID: 6790157
Filing Date: 2004-09-14
Classification: B60W,F02D,F16H,Y02T,Y10T

Abstract:
An apparatus for controlling a drive system of an automotive vehicle including an engine provided with a supercharger, and a frictional coupling device disposed in a power transmitting path between said engine and a drive wheel of the automotive vehicle, said apparatus comprising:engine-torque estimating means for estimating an output torque of said engine; engaging-force control means for controlling an engaging force of said frictional coupling device during an engaging or releasing action of said frictional coupling device, on the basis of said output torque of the engine estimated by said engine-torque estimating means; engaging-force-control monitoring means for determining whether the engaging force of said frictional coupling device is being controlled by said engaging-force control means; and operating-parameter control means operable when said engaging-force-control monitoring means determines that said engaging force is being controlled by said engaging-force control means while an operating state in which said supercharger is operated is being changed, said operating-parameter-control means controlling at least one operating parameter of said engine, so as to restrict an amount of change of said output torque of said engine due to a change of a supercharging pressure to be established by said supercharger according to said change of said operating state, said at least one operating parameter being other than said operating state of said supercharger.