On-board battery failure early warning system and method based on Internet of Vehicles

Abstract

The embodiment of the invention discloses an on-board battery failure early warning system based on Internet of Vehicles. An Internet of Vehicles OBD terminal acquires voltage information of the on-board battery, and the voltage information is transmitted to an Internet of Vehicles server; the Internet of Vehicles server stores the received voltage information and the time for receiving the voltage information; and according to a preset algorithm, the voltage information and the time for receiving the voltage information, whether the on-board battery fails is judged, and when the on-board battery is judged to fail, early warning information is transmitted to a user terminal. The embodiment of the invention also discloses an on-board battery failure early warning method based on the Internet of Vehicles.

Description

technical field [0001] The invention relates to the information technology of the Internet of Vehicles, in particular to an early warning system and method for vehicle battery failure based on the Internet of Vehicles. Background technique [0002] The on-board battery is used to start the car engine and supply power to the electronic control system in the car. At present, most cars use lead-acid batteries. As the use time increases, the surface of lead-acid batteries will be vulcanized, corroded, and active materials will fall off, resulting in aging and performance failure of lead-acid batteries; when the battery of lead-acid batteries When the capacity drops to 80% of the rated capacity, the battery capacity of the lead-acid battery may drop sharply and may be scrapped at any time. [0003] Detection and failure warning of the battery can reduce the probability of the vehicle breaking down. The commonly used detection methods include the following: one is to detect the ...

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Problems solved by technology

[0004] However, detecting the actual capacity of the on-board battery through discharge will generate a lot of heat during the test, and it is impossible to test multiple batteries continuously, and the tested battery must be recharged before it can be measured again, and multiple measurements cannot be obtained. The same result; measuring the conductance of the battery with a conductivity meter is too professional for ordinary car owners and difficult to achieve; the solution for obtaining battery parameters based on on-board sensors, since the existing on-board sensors can only measure battery voltage information, if other information, it is not practical to add a variety of additional sensors; by measuring battery voltage and changes in battery voltage and system stabilization time to predict battery failure trends and battery remaining life, it is necessary to obtain a large number of negative peak voltages of batteries and system The value of stable voltage, obtaining these values ​​requires the cooperation of a large number of users or fleets, and in the case of some faults such as plate vulcanization, the voltage of the battery rises rapidly during the charging process, in this case, the obtained prediction conclusion will be error

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