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What does EP mean on a truck?

1 Answers

DePeyton

07/29/25 11:12pm

Automatic transmission trucks with an EP gear is a symbol for diesel vehicles. The EP switch on trucks refers to the Electronic Parking Brake system. Below are the detailed explanations: 1. The Electronic Parking Brake system, abbreviated as EPB, can calculate the slope using the longitudinal acceleration sensor in the vehicle's computer: Based on the slope, it determines the downward force caused by gravity when the vehicle is on an incline. The motor can then apply braking force to the rear wheels to balance this downward force, allowing the vehicle to stop smoothly and safely on a slope. 2. The EP gear on automatic transmission trucks has two functions: long slope gear and low gear: (1) Long slope gear: This gear is used when encountering long-distance slopes. The control unit automatically shifts between 1st and 2nd gears based on the vehicle's speed and throttle opening. (2) Low gear: In low gear, the transmission remains in 1st gear without shifting up. It can be used on slopes and also provides some braking function when going downhill.

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