Low-power-consumption control system of battery manager

Abstract

The invention discloses a low-power-consumption control system of a battery manager. The system comprises a battery manager, a main power battery, an auxiliary battery, a comprehensive controller andan intelligent switch; the battery manager is arranged on the main power battery and performs balance management on the main power battery; the battery manager is connected with the auxiliary batteryand the comprehensive controller; a direct current power supply module is arranged between the battery manager and the comprehensive controller; the comprehensive controller is connected with the auxiliary battery through the intelligent switch. According to the low-power-consumption control system of the battery manager of the invention, the phenomenon of successive power consumption of the mainpower battery due to power consumption generated by the battery manager is avoided, the electric quantity of the main power battery is ensured. When the battery manager is applied to a lithium batteryelectric vehicle, the driving mileage of the electric vehicle can be greatly prolonged. Meanwhile, with the system adopted, a lithium battery can sustain for a long time, and even after long-distancetransportation or long-time storehouse storage, the lithium battery cannot be lack of electricity and can be normally used.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, and in particular relates to a low power consumption control system of a battery manager. Background technique [0002] Nowadays, with the continuous development of lithium-ion battery technology, lithium-ion batteries have been widely used, especially in the field of electric vehicles, which has made great progress. The battery manager (BMS) is an important part of the lithium battery of an electric vehicle. The battery manager can manage the active power battery of the electric vehicle in a balanced manner, monitor its status in real time, and prevent the main power battery from overheating, overvoltage, and overvoltage. Damaged due to over-current or over-discharge. But the battery manager in the prior art draws power from the main power battery, and the battery manager will generate power consumption, so the main power battery will consume power one after another, which is also the...

AI Technical Summary

Problems solved by technology

But the battery manager in the prior art draws power from the main power battery, and the battery manager will generate power consumption, so the main power battery will consume power one after another, which is also the reason for the fast power consumption of the main power battery , the mileage of lithium battery electric vehicles will also be greatly shortened

At the same time, the existing technology cannot allow the lithium battery to be put on hold for a long time. After long-distance transportation or long-term storage in the warehouse, the lithium battery often loses power and cannot be used normally, which brings great trouble to users.

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