But cruise control actuates the throttle valve by a cable connected to an actuator , instead of by pressing a pedal. One of the cables is connected to the gas pedal, the other to the vacuum actuator. In the picture above, you can see two cables connected to a pivot that moves the throttle valve. One cable comes from the accelerator pedal, and one from the actuator. The electronically-controlled vacuum actuator that controls the throttle.
Many cars use actuators powered by engine vacuum to open and close the throttle.
These systems use a small, electronically-controlled valve to regulate the vacuum in a diaphragm. This works in a similar way to the brake booster , which provides power to your brake system. Inc. All rights reserved. Simply register for a free Postbox in the country where your merchant is located.