48V nickel-metal hydride battery management system

Abstract

The invention provides a 48V nickel-metal hydride battery management system. The system comprises a microprocessor, a relay driving module, a power supply circuit, a battery current acquisition module, a battery total voltage acquisition module, a battery module voltage acquisition module, a battery temperature acquisition module, an isolation CAN communication interface module and a data storagemodule. The microprocessor is connected with the relay driving module, the battery current acquisition module, the battery total voltage acquisition module, the battery module voltage acquisition module, the battery temperature acquisition module, the isolation CAN communication interface module and the data storage module, and the isolation CAN communication port module is connected with an external associated electronic component with a CAN. The 48V nickel-metal hydride battery management system is simple in design, safe and reliable, and can prolong the service life of batteries.

Description

Technical field [0001] The invention relates to a 48V nickel-hydrogen battery management system. Background technique [0002] The most widely used auxiliary batteries for rail vehicles are lead-acid batteries and nickel-cadmium alkaline batteries. Among them, nickel-cadmium batteries have low energy density, heavy metal pollution, and have serious memory effects. Nickel-cadmium batteries are not safe and have low energy density. As a result, under the same power requirements, its volume and weight are large, requiring regular maintenance and high maintenance costs. As a secondary battery, nickel-hydrogen battery has the characteristics of long life, no pollution, relatively high energy density and wide operating temperature range, and has been gradually applied in the field of rail transit. In order to make Ni-MH batteries more reasonable, safe, and long-life used in the rail transit field, Ni-MH batteries need to be equipped with a management system. Summary of the invention ...

AI Technical Summary

Problems solved by technology

[0002] The most widely used auxiliary batteries for rail vehicles are lead-acid batteries and nickel-cadmium alkaline batteries. Among them, nickel-cadmium batteries have low energy density, heavy metal pollution and serious memory effects, and nickel-cadmium batteries are not safe and have low energy density. As a result, under the same power requirements, its volume and weight are large, regular maintenance is required, and maintenance costs are high

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