Patent ID: 6341594
Filing Date: 2002-01-29
Classification: B60K,B60W,F02D

Abstract:
Apparatus of controlling output torque of an internal combustion engine having first and second operating modes, comprising:a control unit for controlling a torque regulating device of said engine, and for controlling an operating mode of said engine as between said first and second operating modes, said control unit having respective first and second control paths for the respective operating modes, each control path having a controller for generating an output control signal based on an input manipulated variable and on vehicle operating parameters, and a metering characteristic for processing said control signal to compensate for nonlinearities of a torque curve of said engine, producing actuating signals for manipulating a throttle valve of said engine; means, operative when said vehicle is operating in said first operating mode, for causing said control unit to generate said actuating signals via said first control path; and means, operative at a time of transition from said first operating mode to said second operating mode, for causing said control unit to process an actuating signal generated by said first control path through a metering characteristic which is an inverse of the metering characteristic of said second control path, and to process an output from said inverse metering characteristic via said second control path.