A method for operating an accelerator pedal unit according to de 10 2013 209 370.5

摘要

It is a method for operating a control pedal unit according to the DE 10 2013 209 370.5 described. Such a control pedal unit is provided with a restoring spring, wherein a by means of a corresponding actuating force induced change in position of the accelerator pedal with respect to its initial position against a restoring force of the restoring spring to an increase in the driving force of the engine, and as actuating force of the restoring force of the restoring spring in the direction of its initial position, the accelerator pedal back.With an electromechanical main actuator (18) is connected to at least one plunger (24, 114) a by means of a control unit (12) has variably controllable additional restoring force (f_{The addition of}) generated, with at least one of the plunger (24, 114) acting friction means (100) for generating a frictional force acting in addition to the restoring force is provided, wherein the friction device has a bistable auxiliary actuator, which the friction device optionally activated or deactivated.To maintain a desired restoring force, the control unit activates the friction means (12) by means of the piston and is thereupon the current supply of the main actuator (18) is reduced.