Power battery circuit system, control method and device thereof, control equipment and automobile

A power battery circuit and control method technology, which is applied in the automotive field, can solve the problem of uncontrollable heating rate of the battery system, and achieve the effect of preventing failure and ensuring safety

Pending Publication Date: 2022-01-07
BEIJING ELECTRIC VEHICLE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a power battery circuit system and its control method, device, control equipment, and automobile to solve the problem of uncontrollable heating rate of the battery system in the prior art

Method used

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  • Power battery circuit system, control method and device thereof, control equipment and automobile
  • Power battery circuit system, control method and device thereof, control equipment and automobile
  • Power battery circuit system, control method and device thereof, control equipment and automobile

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Embodiment Construction

[0065] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0066] Aiming at the problem that the heating rate of the battery system is uncontrollable, the invention provides a power battery circuit system and its control method, device, control equipment and automobile.

[0067] Such as figure 1 As shown, one embodiment of the present invention provides a power battery circuit system, including: a power supply, a charging and discharging circuit connected to the power supply, and a heating circuit connected to the charging and discharging circuit to control heating current.

[0068] Optionally, the charging and discharging circuit includes: a main positive relay, a main negative relay, a pre-charging circuit and a connector;

[0069] Wherein, the positive pole of the power supply is connected to the first ...

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PUM

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Abstract

The invention provides a power battery circuit system, a control method and device thereof, control equipment and an automobile, and the power battery circuit system comprises a power supply, a charging and discharging circuit connected with the power supply, and a heating circuit connected with the charging and discharging circuit and used for controlling heating current. According to the scheme, by adjusting the duty ratio of the IGBT, effective control over the heating rate of the battery system can be achieved within a large range, and it is guaranteed that the heating rate of the battery system is stable and controllable. By arranging the heating controller, the safety from the battery cell to a heating sheet and the reliability of a heating loop are effectively ensured, and fault prevention, monitoring and diagnosis of the battery system are facilitated.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a power battery circuit system and its control method, device, control equipment and automobile. Background technique [0002] At present, it is a common situation that the battery system of electric vehicles takes a long time to heat up and the heating rate is not adjustable. Changing the heating scheme of arranging heating film in the box to arranging heating sheets between the cells can greatly improve the heating rate of the battery system, but at the same time it will cause two problems: [0003] 1. Under different initial heating conditions (such as different battery temperature or power), how to keep the battery system in a relatively stable heating rate, whether the battery heating rate can be adjusted is very important; [0004] 2. The close arrangement of the heating sheet and the battery cell introduces thermal safety issues, so it is necessary to set up a fault detection a...

Claims

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Application Information

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IPC IPC(8): B60L58/27H01M10/615H01M10/625H01M10/63
CPCB60L58/27H01M10/615H01M10/625H01M10/63B60L2240/545Y02E60/10Y02T10/70
Inventor 徐楠李兴华代康伟
Owner BEIJING ELECTRIC VEHICLE
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