An alarm system and alarm prompting method for parking brake not activated

Abstract

The invention relates to an alarm system for parking brake failure, which includes a handbrake switch, an ignition switch, a main driver's door, an instrument assembly, a liquid crystal screen and a buzzer integrated in the instrument assembly; There is a handbrake not pulled alarm function module; the handbrake switch and the ignition switch are respectively connected with the handbrake not pulled alarm function module; the main driver's door is connected with the handbrake not pulled alarm function module through the CAN bus; The handbrake is not pulled and the alarm function module is electrically connected with the buzzer. The invention also provides a method for warning and prompting that the parking brake is not activated. In the present invention, when the driver does not pull up the handbrake, after the ignition switch is placed in the OFF gear, a double alarm of text warning prompt and buzzer alarm sound is issued to prompt the driver to pull up the handbrake.

Description

technical field [0001] The invention relates to an automobile braking system, in particular to an alarm system and an alarm prompting method for parking brake failure. Background technique [0002] With the rapid development of the automobile industry in recent years, people no longer only pursue comfort, but also put forward higher requirements for safety. The handbrake is the most important car safety component when the car is parked at rest. It can ensure that the wheels are locked when the car is parked under various road conditions, so as to prevent rolling accidents. However, many drivers tend to forget to pull up the handbrake after turning off the engine, resulting in unsafe factors that may cause the car to slip. At present, models with automatic parking function are usually equipped with more configurations such as EPB (abbreviation for Electrical Park Brake, that is, electronic parking brake system), and the price of the models is relatively high, which exceeds t...

AI Technical Summary

Problems solved by technology

[0004] (1) The handbrake detection unit needs a preload sensor to detect the preload, and the system is more complicated;

[0005] (2) There is only voice alarm, and the alarm prompt method is single;

[0006] (3) It is impossible to detect whether the driver has the intention to leave the car after turning off the engine, and it is impossible to distinguish the emergency degree of the alarm;

[0007] (4) When the driver releases the handbrake and intends to start after ignition, a redundant alarm will be generated, interfering with the driver's normal use of the car

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