Patent ID: 6418367
Filing Date: 2002-07-09
Classification: B60W,F16H

Abstract:
A control system for an engine-transmission powertrain of a vehicle having a transmission to establish various speed ratios between input and output shafts of the transmission, an accelerator pedal with various positions including a released position, and an engine with various output torque levels, the control system comprising:a vehicle navigation system including a map database with map information including kinds of roadways, said vehicle navigation system being operable to provide information as to a current position of the vehicle and information as to a kind of roadway which the current vehicle position is on; a ramp detection unit operatively connected with said vehicle navigation system to determine whether or not the vehicle is on a ramp; an accelerator pedal sensor operatively connected to the accelerator pedal to detect operator demand by detecting current position of the accelerator pedal; and a controller, which receives output signals of said ramp detection unit and said accelerator pedal sensor, and generates a command upon determination by said ramp detection unit that the vehicle is on the ramp and applying said command to the engine transmission powertrain, affecting control of the engine-transmission powertrain to meet the detected operator demand.