Why does the car accelerate automatically without stepping on the accelerator?

[EmmaDella]

When the car accelerates automatically without stepping on the accelerator, it may be due to an issue with the car floor mat causing the accelerator pedal to get stuck, leading to unintended acceleration. Below is an introduction to the car accelerator: 1. Introduction: The accelerator, also known as the 'throttle' or 'gas pedal,' is a control device that regulates the engine's power (thrust). 2. Function: In piston aircraft engines, the accelerator controls the carburetor's throttle opening to regulate the cylinder's filling volume, thereby determining the engine's output power. In gas turbine engines, the accelerator controls the fuel regulator's metered fuel flow, which determines the engine's thrust. 3. Position: The accelerator position is controlled by the driver in the cockpit via the throttle lever, which is transmitted to the carburetor or fuel regulator on the engine through control system components such as pushrods, rocker arms, torque tubes, cables, pulleys, and sector gears. In aircraft, pushing the throttle lever forward always increases power (thrust), while pulling it back decreases power (thrust).