Like the mechanical handbrake, the electronic handbrake functions in conjunction with the P gear to prevent the vehicle from rolling freely when stopping or parking. Instead of using a brake lever, the electronic handbrake is just a button, marked with the letter P in a circle and located near the gear lever. Nowadays, the electronic handbrake is gradually becoming standard equipment even on popular cars.
Compared to the mechanical handbrake, the electronic handbrake has a big advantage in design when there is no hand lever next to the gear lever. In terms of structure, the electronic handbrake system uses 2 electric motors on the rear wheels to perform the operation of releasing or holding the brake. The driver will not have to spend much effort to pull and lower the handbrake, instead just need to press a button to perform this operation.
Electronic handbrake has many advantages over traditional mechanical brakes.
Electronic handbrake has many advantages over traditional mechanical brakes. In addition, this type of handbrake can also be considered safer and more convenient when the driver shifts into D gear and steps on the gas, the handbrake will automatically switch to the open state to avoid locking.
In addition, when the driver performs operations such as unbuckling the seat belt, opening the door or turning off the engine, the system will automatically activate the brake hold. The electronic handbrake also has the ability to display danger warnings when an incident occurs, thereby limiting unexpected damage that may occur.
However, because it is controlled by electricity, the electronic handbrake will cause some trouble for the user when the car unfortunately dies, breaks down or runs out of battery. Especially in cases of accidents, flooding leading to damage to the electrical system will make rescue work difficult when the handbrake cannot be lowered.
In this case, to release the handbrake, the driver will have to do it on both rear wheels. The necessary tools are a jack and an electric jack. In the rear brake area, there will be an actuator motor. The driver just needs to pry off the cover and then use the electric jack to supply electricity to the motor. Then the brake motor will operate and switch to the brake release state.
If your car is flooded or in trouble, you should call a professional rescue service to avoid unnecessary risks.
The steps sound simple but in reality, the implementation is quite difficult because you have to jack up the wheel and then crawl under the car. In the case of a normal broken or dead battery, drivers only need to replace the battery or connect electricity directly to the car battery from another car. Once the battery has enough power, the driver only needs to turn on the electrical system, start the car and press the handbrake release button as usual to continue moving.
Releasing the electronic handbrake when the car battery is dead requires caution and some basic skills. If you are not confident or do not have enough tools, the car user should call a professional rescue service to avoid unnecessary risks.
Source: https://www.congluan.vn/cach-ban-can-biet-de-ha-branh-tay-dien-tu-khi-o-to-het-battery-post305235.html
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