Throttle Actuator

Electronic Throttle-Valve Actuator (R50)

Function
An actuator is used to control the engine power via the accelerator pedal position. A direct current motor sets the throttle valve between idling and full load. The feedback of the throttle-valve position and the direct current motor is via two potentiometers. These are integrated in the throttle-valve housing. Both potentiometers use the same ground and power supply. Both wiping contacts are directly linked to the throttle-valve shaft. The characteristic curve of the first potentiometer has a positive rise, whereas the second has a negative rise (both have the same absolute value).

Installation Location
The throttle-valve actuator is integrated in the throttle-valve housing.