Electric vehicle feed and supplement method and feed and supplement system

An electric vehicle and power supply technology, which is applied in the field of power supply and power supply system, can solve the problems of increased static power consumption of the whole vehicle, unusable vehicles, and low-voltage power supply, and achieve the effect of avoiding unusable
CN110481460BActive Publication Date: 2021-07-13ZHAOQING XIAOPENG AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHAOQING XIAOPENG AUTOMOBILE CO LTD
Publication Date
2021-07-13

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Abstract

The invention discloses a power feeding and supplementing method and a power feeding and supplementing system of an electric vehicle. The power feeding and supplementing method includes the following steps: at least one battery controller detects the voltage of a low-voltage battery; when the voltage of the low-voltage battery is lower than the predetermined When the voltage threshold is set, the battery controller sends a power supply request to the vehicle controller; the vehicle controller obtains the current cruising range of the electric vehicle according to the received power supply request; if the current cruising range is greater than the preset cruising range threshold, the entire vehicle controller The vehicle controller controls the high-voltage circuit of the electric vehicle to supplement the low-voltage battery. In the feeding and replenishing method of the embodiment of the present invention, at least one battery controller detects the voltage of the low-voltage battery, so as to replenish the low-voltage battery when necessary, so as to prevent the vehicle from being unusable due to the low-voltage battery feeding.
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Description

technical field

[0001] The invention relates to the technical field of electric vehicles, in particular to a method for feeding and supplementing electricity for electric vehicles and a system for feeding and supplementing electricity for electric vehicles. Background technique

[0002] With the accelerated integration of electronics, information, communication and other technologies with the automotive industry, cars are also developing in the direction of intelligence and networking, and vehicle configurations are becoming more and more diverse. Especially for new energy vehicles, intelligent networking is far greater than traditional fuel car. However, the growth of vehicle intelligent networking will inevitably increase the static power consumption of the vehicle, which will easily cause low-voltage power supply and make the vehicle unusable. Contents of the invention

[0003] The present invention aims to solve one of the technical problems in the above-mentioned tec...

Claims

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