Battery heating control circuit, method, readable storage medium and vehicle
A battery heating and control circuit technology, applied in the field of vehicles, can solve the problems of fire, battery thermal runaway, and high battery temperature, and achieve the effect of improving safety and ensuring safety and controllability
Active Publication Date: 2021-09-17
BEIQI FOTON MOTOR CO LTD
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Problems solved by technology
However, this heating method has strict requirements on battery heating control due to the high rate of temperature rise. If the management is not perfect, the battery temperature will be too high, exceeding the battery’s withstand temperature, causing battery thermal runaway, and even causing a fire.
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[0030] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.
[0031] In related technologies, the control and management of the battery heating of electric vehicles is basically handled by the battery management system (Battery Management System, BMS). When the BMS is out of control, crashes or the development of the BMS heating application is not perfect, the battery thermal runaway will be triggered. security incident. That is, in the related art, the battery heating of the electric vehicle is only managed through the BMS, which mainly has the following disadvantages: 1. The battery management system itself has functional safety defects, and in addition to the complexity of the vehicle operating environment, the batte...
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The present disclosure relates to a battery heating control circuit, a method, a readable storage medium and a vehicle, so as to improve the safety of battery heating and control. The circuit includes: a battery management system and a battery heating high-voltage circuit, a vehicle controller, and the vehicle controller is connected to the battery management system and the battery heating high-voltage circuit respectively; the battery management system is used to collect battery heating status information during the battery heating process , and generate a heating status message according to the heating status information and send it to the vehicle controller, and determine whether the battery meets the first heating termination condition according to the heating status information, and control the battery heating high voltage circuit to disconnect when the battery meets the heating termination condition , to terminate the heating of the battery; the vehicle controller is used to determine whether the battery and / or battery management system meets the second heating termination condition according to the heating status message, and control the battery heating high-voltage circuit when it is determined that the second heating termination condition is met disconnect to terminate battery heating.
Description
technical field [0001] The present disclosure relates to the field of vehicle technology, in particular, to a battery heating control circuit, method, readable storage medium and vehicle. Background technique [0002] New energy vehicles have the advantages of low carbon, environmental protection, and energy saving. With the emphasis on energy conservation and environmental protection and the vigorous promotion of national policies, new energy vehicles (such as electric vehicles) are developing very rapidly. Diversification of requirements, for example, the use of electric vehicles in extremely cold or hot regions. [0003] However, due to the narrow operating temperature range of the power lithium-ion battery itself of electric vehicles, its optimal operating temperature range is 15°C to 45°C, resulting in insufficient power for electric vehicles to operate in extremely cold or extremely hot regions, and even cause the vehicle to lie down. . Therefore, most new energy veh...
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IPC IPC(8): B60L58/27
CPCB60L58/27Y02T10/70
Inventor 魏长河杨建锋邓新华武春晓周恩飞齐孟彬
Owner BEIQI FOTON MOTOR CO LTD