Vehicle low-voltage power supply management system and mounting method thereof

Abstract

The invention relates to a vehicle low-voltage power supply management system and a mounting method thereof. The system comprises a low-voltage power supply management module, relays, a manual switch and a current sensor. All auxiliary components of the low-voltage power supply management module are arranged on an integrated circuit board. The manual switch is connected with a low-voltage storage battery and the relays through a low-voltage power supply line. The relays and the current sensor are connected with the low-voltage power supply management module. The low-voltage power supply management module is provided with a debugging interface and a communication interface and carries out direct power supply through the low-voltage storage battery of a vehicle and the low-voltage power supply line. By means of the adoption of the vehicle low-voltage power supply management system, a low-voltage circuit of the vehicle can be detected and protected, and the system can be applied to various vehicles. The system is small in size, intelligent, easy to maintain, low in energy consumption, easy to additionally mount or demount and small in influence on original systems.

Description

technical field [0001] The invention relates to the field of management of low-voltage power supplies of vehicles, in particular to a control device for low-voltage power supplies of vehicles, in particular to a management system of low-voltage power supplies of vehicles and an installation method thereof. Background technique [0002] The low-voltage battery of an electric vehicle usually has the following functions: starting the vehicle control components; providing power for the low-voltage system of the vehicle; stabilizing the voltage of the low-voltage system, etc. If the vehicle's low-voltage battery has faults such as undervoltage or open circuit, it will inevitably affect the normal operation of the vehicle, such as: the vehicle cannot start normally, the vehicle cannot drive normally, the vehicle cannot be charged normally, and it is inconvenient to recharge electricity during field operations. There are many reasons for the undervoltage of the battery, such as par...

AI Technical Summary

Problems solved by technology

If the vehicle's low-voltage battery has faults such as undervoltage or open circuit, it will inevitably affect the normal operation of the vehicle, such as: the vehicle cannot start normally, the vehicle cannot drive normally, the vehicle cannot be charged normally, and it is inconvenient to recharge electricity during field operations, etc.

There are many reasons for the undervoltage of the battery, such as parking the vehicle for a long time, causing undervoltage due to excessive leakage current; the battery has a long service life, large capacity attenuation, and undervoltage caused by excessive use without timely replenishment; After power on, there are a lot of constant power equipment, and the overcurrent used for parking causes undervoltage; there is also a slight short circuit in the circuit under accidental conditions, which causes fault-type leakage and causes undervoltage caused by rapid discharge of the battery, etc.

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