Testing device and method of vehicle dark current

Abstract

The invention relates to a testing device and method of vehicle dark current. The device comprises a power source (1), a power source module (2), a clock battery (3), a USB interface (4), a storage (5), a single-chip microcomputer module (6), a wireless communication module (7), a full storage indication lamp (8), a Lin transceiver (9) and a storage battery sensor (10). The device and method are applicable to testing a vehicle with a storage battery sensor matched with the Lin communication interface, the technical problem about continuous and real-time collection and storage of storage battery dark current property data is solved, storage battery property data in the storage is transmitted to a data storage server in real time through a 3G wireless communication module, and dark current property data remote continuous storage, remote real-time monitoring and comprehensive evaluation functions are achieved.

Description

technical field [0001] The invention belongs to the technical field of automobile detection, and in particular relates to a testing device and method for dark current of automobiles. Background technique [0002] The dark current of the car is that the power gear of the car is in the OFF position (the car is not working), and there is still current flowing. The reasons for the existence of dark current, first, some electrical equipment must be powered for a long time in order to maintain the memory function of data. These electrical appliances mainly refer to computer control units, such as stereos (remembering the frequency band you listened to last time, CD tracks); and air conditioners (remembering the setting of wind direction and wind speed). Second, some anti-theft sensors need long-term power supply to ensure all-weather monitoring function. Due to the existence of dark current and the discharge of the battery itself, the long-term storage of the vehicle will lead t...

AI Technical Summary

Problems solved by technology

However, with more and more functions of cars, more and more electronic and electrical equipment in cars, more and more complex car control logics, and more and more electronic control units for continuous power supply, especially cars equipped with Internet functions, due to the When the terminal is in the OFF position of the car, it still communicates with the server at regular intervals. As a result, the use of multimeters, current clamps, etc. to test the dark current of the car during the car development stage cannot meet the needs, and the indicators of the dark current on the car cannot be synthesized. evaluation of

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