A method and vehicle-mounted terminal for monitoring battery data of a pure electric vehicle in a parked state

Abstract

The invention discloses a method for monitoring battery data under a parking state of a pure electric vehicle and a vehicle-mounted terminal. The method comprises the steps that the fact that the vehicle is under the parking state is determined; a first timer is started; after the first timer reaches the first preset duration, an awaking signal is output to a battery management system in the vehicle; the battery data reported by the battery management system are received; the battery data are sent to a control platform; a dormancy signal is output to the battery management system to enable the battery management system to enter a dormancy or closed state. The method for monitoring the battery data under the parking state of the pure electric vehicle and the vehicle-mounted terminal can monitor the battery data under the parking state of the pure electric vehicle, and not only can collect accurate battery voltage and temperature data, but also do not consume a large amount of energy capacity of a battery in the whole working process.

Description

technical field [0001] The invention relates to a method for monitoring battery data in a parked state of a pure electric vehicle, which can solve the problem that the battery data cannot be monitored in the parked state, and provide a safety warning function to avoid major accidents such as spontaneous combustion in the parked state of the vehicle. Background technique [0002] According to national regulations, pure electric vehicles need to be installed with vehicle remote monitoring vehicle terminals. The vehicle-mounted terminal communicates with the vehicle battery management system (BMS), the vehicle controller and other controllers through the CAN bus, obtains the data and fault information of each control system in real time, and then sends them to the remote monitoring platform (generally by the government or the vehicle The monitoring platform will process and judge the safety warning after receiving the vehicle data. If the battery voltage or temperature is found...

AI Technical Summary

Problems solved by technology

[0005] However, in the prior art, for the parked pure electric vehicles, the data of the battery system cannot be monitored generally.

There are two main reasons: the first is that the vehicle-mounted terminal does not support the function of regularly waking up and reporting data; the second is that the vehicle-mounted terminal can regularly wake up and report data, but the battery management system and other controllers are in a sleep or power-off state, and the vehicle-mounted terminal monitors less than correct data

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