Power management system and method for preventing vehicle feed

Abstract

The invention discloses a voltage management system and method for preventing vehicle feed. The system comprises a storage battery and a forecabin electric appliance box, and the forecabin electric appliance box is used for distributing power for a forecabin electric load. The system further comprises an upper CAN electric appliance box, the input end of the upper CAN electric appliance box is connected with the storage battery, the output end of the upper CAN electric appliance box is connected with the power input end of the forecabin electric appliance box, and the upper CAN electric appliance box is used for stopping distributing power to the power input end of the forecabin electric appliance box when the electric quantity of the storage battery is low. The advantages of the present invention are that the power supply of all electric appliances powered by the forecabin electric appliance box can be automatically cut off when the electric quantity is low; the safety and reliability of the electric quantity of the storage battery are guaranteed; the feed of the storage battery caused by the power distribution and power supply of the forecabin electric appliance box is avoided; and the electric quantity of the vehicle storage battery is guaranteed, so that an automobile can be effectively started.

Description

technical field [0001] The invention relates to the field of vehicle power supply, in particular to a power management system and method for preventing vehicle power feeding. Background technique [0002] With the improvement of the convenience of living facilities, due to the needs of work or life, some users put their vehicles in the airport or garage for more than half a month or even longer. When the vehicle is normally turned off and parked, there are still many electronic components in working condition, and electricity will still be used at this time. Once the battery feeds more power, it will cause the vehicle to fail to start normally, and the battery may be scrapped. [0003] In addition, as the configuration of the whole vehicle becomes higher and higher, there are more and more electrical equipment for the whole vehicle. After the whole vehicle is dormant, if a certain module fails to dormant for some reason, the whole vehicle will not be dormant, thus, The who...

AI Technical Summary

Problems solved by technology

When the vehicle is parked, the non-sleeping load normally consumes power until the next time the owner starts the vehicle. If the time is too long, it may feed power, and the vehicle will not be activated next time.

On the other hand, if a certain module does not sleep after the vehicle is dormant, resulting in the vehicle not dormant, the quiescent current of the vehicle is too large, the power consumption is faster, and the power feed will appear earlier, and at this time the owner does not know the condition of the vehicle at all, etc. At the next start, if the start is unsuccessful, rescue is required, etc., it will cause inconvenience to the owner and may cause complaints

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