Starting without releasing the parking brake means that for an automatic transmission car, you need to gradually engage the clutch first and then release the brake. Otherwise, it may lead to insufficient brake pressure during startup, causing unnecessary vehicle coasting and resulting in a failed test score. Key points of computer-assisted evaluation for automatic transmission: Starting with the door not fully closed is considered a failure; after driving more than 0.5 meters, the system checks if the door is closed. Starting the engine without the gearshift lever in neutral (parking gear) is a failure; during engine startup, the system checks the gear status, which must not be in neutral, P, or N gear. The Electronic Parking Brake (EPB: Electrical Park Brake) integrates the temporary braking function during driving with the long-term braking function after parking, and it uses electronic control to achieve parking brake technology. The electronic handbrake employs electronic control to realize parking brake technology, with its working principle being the same as the mechanical handbrake—both achieve parking control through the friction generated between the brake disc and brake pads. The only difference is that the control method has changed from the mechanical handbrake lever to an electronic button. The electronic handbrake extends from the basic parking function to the automatic parking function AUTOHOLD. The application of AUTOHOLD automatic parking technology allows drivers to avoid prolonged braking when the vehicle is stopped. With the automatic electronic parking brake activated, unnecessary vehicle coasting can be avoided, simply put, the vehicle will not roll backward.
