Vehicle driving risk early warning device based on safety belt

Abstract

The invention relates to a vehicle driving risk early warning device based on a safety belt, comprising a safety belt buckle and a safety belt buckle controller, wherein the safety belt buckle comprises an electromagnetic device and an original vehicle safety belt buckle, the electromagnetic device comprises a coil, a gag bit, a field yoke and a wire interface as well as; the gag bit and the bottom of the magnetic yoke are respectively provided with a hole for connecting the original vehicle safety belt buckle and a hole for connecting a vehicle seat, and the coil passes through and is connected with the safety belt buckle controller; the safety belt buckle controller receives warning level and vehicle collision signal provided by a driving auxiliary system via vehicle-mounted CAN bus of the original vehicle; when the warning level information is received, the safety belt buckle controller controls the current make-break of the coil, thereby controlling the original vehicle safety belt buckle to tighten or loosen the safety belt by the gag bit of the electromagnetic device to early warn the driver; when the vehicle collision signal is received, the safety belt buckle controller controls the safety belt buckle to lock the safety belt so that the driver and passengers are locked on the seats. The invention has the functions of early warning risk and lock in emergency, and has simple structure, convenient installation and wide application range.

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to a safety belt-based automobile driving danger warning device. Background technique [0002] With the development of vehicle active safety technology, various driving assistance systems such as forward collision warning system and lane departure warning system provide drivers with early warning information of dangerous states. Dangerous situations such as vehicle collisions often occur when the driver is not concentrating or is in a state of fatigue. To achieve the best alarm effect, this type of alarm system needs to implement the most reliable stimulation method for the driver to ensure It can detect alarm information quickly and effectively in various states. As one of the main sensory abilities of human beings, the sense of touch has the widest distribution and the most information. Therefore, the effect of the tactile alarm method is often more obvious. Various au...

AI Technical Summary

Problems solved by technology

The best device that can realize this function is a safety belt with a locking function. For example, the patent with the publication number CN201161580 proposes an emergency locking type safety belt retractor, which has the function of locking the safety belt in an emergency. function, but its structure is complicated, and the seat belt retractor of the original car has been greatly changed during installation.

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