Vehicle high-voltage accessory energy control method and energy control system

Abstract

The invention provides a vehicle high-voltage accessory energy control method and an energy control system, and the energy control method comprises the following steps: according to the battery information of a power battery output by a battery controller, when the operation state of a vehicle is judged to be a normal mode, according to the request information of a driver on a man-machine interaction system, controlling a high-voltage accessory to perform power distribution through the vehicle control unit; wherein the request information comprises a defrosting request, a driver rapid acceleration driving request and vehicle driving request power. Power battery information is monitored in real time, and when it is judged that the power battery reports a trigger function safety threshold value or power battery reports fault information, power distribution of the high-voltage accessory is limited in time.

Description

technical field [0001] The invention relates to the technical field of energy management of electric vehicles, in particular to an energy control method for high-voltage accessories of a vehicle and an energy control system for realizing the energy control method. Background technique [0002] With the continuous development of new energy technologies, electric vehicles account for an increasing proportion of new vehicle production. Since electric vehicles are powered by power batteries when driving, high-voltage accessories such as air-conditioning compressors and electric heaters will consume electric energy when they provide a comfortable environment for the driver and provide cooling for the battery system, resulting in a reduction in the cruising range of the vehicle. High-voltage accessory control methods place high demands. [0003] In the energy control method for high-voltage accessories in the prior art, when the vehicle is running in the normal mode, the defrosti...

AI Technical Summary

Problems solved by technology

Since electric vehicles are powered by power batteries when driving, high-voltage accessories such as air-conditioning compressors and electric heaters will consume electric energy when they provide a comfortable environment for the driver and provide cooling for the battery system, resulting in a reduction in the cruising range of the vehicle. High-voltage accessory control method puts high demands

[0003] In the energy control method of high-voltage accessories in the prior art, when the vehicle is running in the normal mode, the defrosting requirements of the driver are not considered, and the design requirements of the functional safety of the power battery are not considered

At the same time, the energy control method of high-voltage accessories in the prior art does not consider the driver's comfort requirements, nor does it consider the scene where the power battery of the electric vehicle reports failure.

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