Battery module loop control device and method, battery assembly and electric vehicle
A battery module and loop control technology, applied in battery circuit devices, circuit devices, secondary battery charging/discharging, etc., can solve problems such as inability to fast charge, battery thermal runaway high-voltage arcing, etc., to improve charging efficiency, avoid The effect of pulling the arc and improving the safety performance
Pending Publication Date: 2022-03-29
CHINA FIRST AUTOMOBILE
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Problems solved by technology
[0003] The purpose of the present invention is to solve the problem of thermal runaway high-voltage arcing of the existing battery and the problem of being unable to charge quickly due to the power limit of the charger, and propose a battery module circuit control device, method, battery assembly and electric vehicle
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[0036] According to the attached Figure 1-7 The present invention is described further:
[0037] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than ...
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The invention discloses a battery module loop control device and method, a battery assembly and an electric vehicle, and belongs to the technical field of power battery control, the battery module loop control device comprises a battery module and a high-voltage four-way controller which are arranged in a battery box body, the battery module is electrically connected with the high-voltage four-way controller, and the high-voltage four-way controller is electrically connected with the battery module. The battery module and the high-pressure four-way controller are electrically connected with the BMS battery management system. The invention discloses a battery module loop control device and method, a battery assembly and an electric vehicle, a battery module request state is judged through a BMS battery management system, the battery voltage can be reduced in a battery thermal runaway state, arc discharge of an internal high-voltage loop is avoided, the safety performance is improved, the battery voltage can be reduced when the battery is rapidly charged, and the battery efficiency is improved. Two small battery loops are formed and can be connected with two charging devices, and the charging efficiency is improved to two times of the original charging efficiency.
Description
technical field [0001] The invention discloses a battery module circuit control device, a method, a battery assembly and an electric vehicle, belonging to the technical field of power battery control. Background technique [0002] At present, the development prospects of new energy vehicles are very broad. New energy vehicles have the advantages of high energy efficiency, zero emissions, no pollution, high specific energy, low noise, and high reliability. As the main energy storage component of the new energy battery vehicle, the power battery system mainly ensures the driving of the vehicle, the power demand of high and low voltage components, the recovery of braking energy, and the energy regulation of the hybrid engine system. The safety of the power battery assembly has always been the key to its quality. With the rapid development of the demand for high-energy and high-power battery assemblies, a series of safety problems of the battery assembly and the slow charging s...
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IPC IPC(8): H01M10/42H01M10/44H01M50/581
CPCH01M10/4257H01M10/44H01M50/581H01M2010/4271H01M2220/20Y02E60/10
Inventor 卢军孙焕丽于长虹李黎黎许立超刘渺然刘鹏岳振东
Owner CHINA FIRST AUTOMOBILE