What do accelerator pedal and brake pedal mean respectively? Where is the car? What does parking brake mean?

Accelerator pedal: commonly known as accelerator? Located on the far right side of the steering wheel.

Brake pedal: commonly known as brake? In the middle position under the steering wheel.

Parking brake: common name? Hand brake? Located between the main driver's seat and the co-pilot seat.

The function of the accelerator pedal is to control the opening of the engine accelerator, thus controlling the vehicle speed. In addition, the accelerator pedal is not only used to control the engine accelerator, but also used to convey the driver's intention to the transmission controller.

The working principle of accelerator pedal is a device to change the engine speed. Under normal circumstances, stepping on the accelerator pedal changes the throttle opening, thus increasing the air intake of the engine and achieving the purpose of improving the engine speed.

The brake pedal is used to slow down and stop. It is one of the five operating parts of automobile driving, and it is used very frequently. How the driver controls directly affects the safety of the car.

The working principle of the brake pedal is to fix a wheel or disc on the high-speed shaft of the machine, and install the corresponding brake shoe, belt or disc on the base of the machine to make it produce braking torque under the action of external force.

The function of parking brake is to give the car a resistance when parking, so that the car does not slip. Parking brake, that is, parking gear in hand brake or automatic gear, locks the transmission shaft or rear wheel. The parking brake is much smaller than the driving brake, just park the car on the slope.

The working principle of parking brake is to control parking brake through friction between brake disc and brake pad, but the control mode has changed from mechanical hand brake lever to electronic button.