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What is the difference between single-pedal and three-pedal systems?

1 Answers

LeSebastian

07/30/25 9:04am

Single-pedal mode allows acceleration and braking operations to be completed with just one accelerator pedal. The three pedals in a car refer to the clutch pedal, brake pedal, and accelerator pedal. Single-pedal mode enables kinetic energy recovery, meaning that when the accelerator is not pressed, the energy used can be recovered and used for reverse charging. The clutch is located between the engine and the transmission. When driving, pressing or releasing the clutch pedal engages or disengages the clutch. For manual transmission vehicles, the clutch pedal must be fully depressed when shifting gears. If the car is in a semi-engaged state, it may sometimes fail to shift gears. The brake pedal is used to control the car's speed. During driving, when the driver presses the brake pedal, the master brake cylinder activates, pushing brake fluid through the brake lines to the brake hoses and then to the wheel brake cylinders, slowing the car down and achieving the braking effect. The accelerator pedal is used to change the engine speed. It adjusts the engine's air intake. When the onboard computer detects an increase in air intake, the fuel injectors increase the fuel injection volume. Since the car uses electronic fuel injection, the onboard computer controls the fuel injection volume. When the driver presses the accelerator pedal, the engine speed increases, thereby boosting the car's speed.

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