Fault detection and alarm method and device for vehicle steering and warning lights

Abstract

The invention provides a fault detection alarming method and device for an automotive steering and warning lamp. The device comprises a power supply, a control unit, a storage unit, a current detecting meter, a sound vibration sensor, an audio receiver, a filter and an audible and visual alarm, wherein the current detecting meter detects current in a circuit loop; the sound vibration sensor detects vibration signals of the steering and warning lamp when sound is produced; the audio receiver detects audio signals of the steering lamp when the sound is produced; the storage device is used for storing normal frequency and amplitude of the sound produced when the steering and warning lamp flickers normally; an ECU judges whether the steering and warning lamp works normally or not according to detected current signals, judges working conditions of the steering and warning lamp according to results obtained by comparing real-time vibration signals and audio signals with normal frequency and amplitude stored in the storage device, and controls the audible and visual alarm to raise the alarm. The device is simple in structure and low in cost, can be rear-mounted, and solves the problem that faults of a steering lamp of a low-configuration automobile cannot be detected and warned in real time.

Description

technical field [0001] The invention relates to the field of vehicle lamp failure detection and alarm, in particular to a vehicle steering and warning lamp failure detection and alarm method and device. Background technique [0002] Existing turn signal failure detection is accomplished by adding a drive IC with current sensing function to the controller. Currently, this configuration is available only for some high-end models, and a large number of low-end models do not have intuitive and real-time turn signal fault detection methods. Traffic accidents often occur due to the failure of the turn signal while the vehicle is running. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present invention provides a low-cost post-installation steering and warning lamp fault detection and alarm method and device, which solves the problem that the current steering lamp faults of a large number of low-end vehicles cannot be visually detected and ala...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the present invention provides a low-cost post-installation steering and warning lamp fault detection and alarm method and device, which solves the problem that the current steering lamp faults of a large number of low-end vehicles cannot be visually detected and alarmed in real time

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