Control system of high-voltage battery and control method thereof

A high-voltage battery and control system technology, applied in battery/fuel cell control devices, electrical program control, program control in sequence/logic controllers, etc.

Active Publication Date: 2009-11-04
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In summary, there are the following technical problems in the prior art: (1) The safety of the high-voltage battery requires a protection system to reasonably control the connection and disconnect

Method used

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  • Control system of high-voltage battery and control method thereof
  • Control system of high-voltage battery and control method thereof
  • Control system of high-voltage battery and control method thereof

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Embodiment Construction

[0070] In order to enable those skilled in the art to clearly understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only the present invention. Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0071] Such as figure 1 Shown is the structure of the electric vehicle system. The battery management system (Battery Management System, BMS) feeds back battery-related parameters to the vehicle controller (Vehicle Control Unit, VCU), and the motor control unit (Motor Control Unit, MCU) feeds back the motor-related parameters Feedback to the VCU, the VCU sends a to...

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Abstract

The invention relates to a control system of a high-voltage battery and a control method thereof. The high-voltage battery of a car load controller is connected to a judge module, so as to judge whether the battery is switched on or switched off, and transmit a judged result to a battery management system in a way of CAN information; the battery management system responds to the request of the car load controller to control a battery supply relay to be switched on or switched off; and from the view point of the system, the car load controller comprehensively considers signals such as the state of the battery, the state of a motor, the request for starting or closing the system, the state of failure information, and the like, to judge whether the battery is switched on or switched off, transmit the judged result to the battery management system to be executed, and transmit the real state of switching on or switching off of the battery to the other control modules of the car load controller. By judging the information, the system reasonably controls the normal starting and closing of the battery, correctly switches on and switches off the battery when having an error for demanding the battery to be switched off, can prevent the circuit of a hard ware from being broken, protects the battery body, and ensures the security of the car load and persons.

Description

technical field [0001] The invention relates to the field of electric vehicle control, in particular to a high-voltage battery control system and a control method thereof. Background technique [0002] At the present stage of social development, energy and the environment have become the most concerned issues in the world. Energy is the foundation of the economy, while the environment is an important factor restricting economic development. How to solve the contradiction between economic development, energy supply and environmental pollution is an urgent problem that countries all over the world need to solve. Electric vehicles replace oil with electricity, which can achieve "zero emission" and low noise, and are an important means to solve energy and environmental problems. With the development of battery technology, the bottleneck that plagues the development of electric vehicles is expected to be broken through. Due to energy constraints and environmental protection req...

Claims

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Application Information

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IPC IPC(8): H01M10/42H02J7/00G05B19/04B60L11/18
CPCY02E60/12B60L11/1851Y02T10/705Y02T10/7005B60L3/04H01M10/44Y02T90/16B60L58/10Y02E60/10Y02T10/70
Inventor 李芳
Owner CHERY AUTOMOBILE CO LTD
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