Automatic stationing, known in english as auto hold, is an intelligent vehicle-assisted brake function, the central function of which is to maintain the brake status automatically after the vehicle has been completely stabilized and without the need for the driver to continue to press the brake pedal。
This technology, which is mainly applied to auto-blocking models, can significantly reduce driving fatigue and improve the safety and comfort of motor vehicles, especially when urban congestion, red and green lights or ramp stops。
This function is based on electronic stabilization of vehicles (esp) and motor computers (ecu). When the vehicle stops, the system collects key data, such as wheel-sharps, tilt angles, wheel speeds, etc., in real-time through body sensors, to determine with precision whether or not there is a vehicle flight risk。
Upon confirmation that the vehicle is in a static state and that there is a potential trend of movement, the eu will immediately give instructions to the brake system to automatically impose an appropriate amount of liquid suppression power to keep the four wheels stable. This power has been calculated precisely enough to prevent the vehicles from sliding and is not excessive, thus ensuring a smooth acceleration of the vehicle at the start of the journey and avoiding a forward movement。
The automatic stationing is very simple, and the driver is on standby by pressing the auto hold button on the middle console (the icon is usually " a " or two semi-turn around " a " ). About one second after the vehicle has been completely stabilized, the system will automatically activate the stationary brakes, at which pointer lights on the dashboard will be activated and the hint function is in effect。
When the driver is preparing for the start-up of the oil pedal, the system automatically recognizes the driver's change and immediately dismantles the brakes and achieves a seamless start without having to operate a manual brake or switch the block。
Unlike traditional hand brakes or electronic hand brakes (epbs), automatic stationing is specially designed for short-term parking. For example, when waiting for a red light, traffic jam or temporary parking, the driver can completely untie the brake pedal and relax his feet. Electronic hand brakes, on the other hand, apply to fixed vehicles after a long period of parking or fire, and are manually activated。
Some high-end models also support automatic stationing and electronic hand brakes: when parking hours exceed the established threshold, the system is automatically switched to electronic handbrake mode to save the brake system energy consumption and extend the life of hydraulic components。
Automatic stationing is particularly useful in the ramp starting scene. Traditional drivers are required to work precisely between the gas door and the brake, with the possibility of skimming and even causing accidents. With the introduction of automatic stationing, the system will continue to provide stable power, completely eliminate the risk of ramping and allow new drivers to cope with complex road conditions。
It is noteworthy that the automated stationing function is dependent on the esp system and electronic brake control units equipped with vehicles, and therefore not all models are supported。
In addition, the function is to be manually activated and automatically shut down after the vehicle has shut down. Drivers should develop good habits: it is still necessary to lift electronic brakes manually to ensure the absolute safety of vehicles during long periods of parking. Automatic stationing is not a panacea, but rather a fully automated driving technique that enhances convenience rather than replaces driver liability。
