Method and Device for Improved Switching Over Between Accelerator Pedal Characteristic Curves

• Main Authors: KRAEMER GERD, BERGWEILER TOBIAS
• Format: Patent
• Language: English
• Published: 24.09.2015
• Subjects: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL

The invention discloses a method and a device for predefining a torque output of a motor vehicle drive engine when switching over accelerator pedal characteristic curves. The method and the device sense an accelerator pedal position, output a first drive output as a setpoint drive output to the motor vehicle drive engine as a function of the accelerator pedal position and a selected first pedal characteristic curve, sense the switching over from a first accelerator pedal characteristic curve to a second accelerator pedal characteristic curve, determine a second drive output as a function of the accelerator pedal position and of the second accelerator pedal characteristic curve, and change the setpoint drive output by a difference output per predetermined time interval from the first drive output to the second drive output. The method and the device determine a setpoint change in acceleration which is intended to sense occur as a result of the switching over from a first accelerator pedal characteristic curve to a second accelerator pedal characteristic curve, determine a change in torque as a function of the estimated vehicle mass and the setpoint change in acceleration, and determine the difference output from the change in torque.