Low-voltage power supply double-circuit system for electric automobile and control method of low-voltage power supply double-circuit system

An electric vehicle, two-way system technology, applied in electric vehicles, battery/fuel cell control devices, current collectors, etc., can solve the problem of prompting safety, inability to comprehensively evaluate the safety and reliability of power management modules, and inability to make early warning information and other problems to achieve the effect of eliminating unsafe factors and ensuring safety

Active Publication Date: 2016-10-26
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now in most new energy vehicles, after the key signal is turned off, the power management module, which is the core of the power supply system, has no power supply. It is impossible to make early warning information prompts and ensure the safety of the next operation

Method used

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  • Low-voltage power supply double-circuit system for electric automobile and control method of low-voltage power supply double-circuit system
  • Low-voltage power supply double-circuit system for electric automobile and control method of low-voltage power supply double-circuit system
  • Low-voltage power supply double-circuit system for electric automobile and control method of low-voltage power supply double-circuit system

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Embodiment Construction

[0050] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0051] Embodiment, the low-voltage power supply dual-circuit system of electric vehicle, see figure 1 As shown, it includes battery 1, No. 1 switch 2, No. 2 switch 3, power management module 4, low-voltage load 5, No. 1 node 6, No. 2 node 7, No. 3 node 8, key switch module 9, and vehicle control module 10 and No. three switch 11;

[0052] One end of the No. 1 switch, one end of the No. 2 switch and the positive end of the battery are connected to the No. 1 node;

[0053] The other end of the No. 1 switch and the positive end of the power interface of the vehicle control module are connected to one end of the No. 3 switch;

[0054] The other end of the No. 2 switch, the other end of the No. 3 switch, the positive end of the power interface of the power management module and the positive end of the power interface of the low-voltage load are all connect...

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Abstract

The invention discloses a low-voltage power supply double-circuit system for an electric automobile and a control method of the low-voltage power supply double-circuit system and relates to the technical field of electric automobile power supply systems. The system is provided with an electric automobile double-circuit power supply system, and a battery can be maintained, self-checked and evaluated. The low-voltage power supply double-circuit system comprises the battery, a first switch, a second switch, a power management module, a low-voltage load, a first joint, a second joint, a third joint, a key switch module, a whole automobile control module and a third switch. One end of the first switch, one end of the second switch and the positive electrode end of the battery are connected to the first joint. The other end of the second switch, the other end of the third switch, the power interface positive electrode end of the power management module and the power interface positive electrode end of the low-voltage load are connected to the second joint. The negative electrode end of the battery, the power interface negative electrode end of the power management module, the power interface negative electrode end of the low-voltage load and the power interface negative electrode end of the whole automobile control module are connected to the third joint.

Description

technical field [0001] The invention relates to the technical field of electric vehicle power supply systems, in particular to a low-voltage power supply dual-circuit system of electric vehicles and a control method thereof. Background technique [0002] At present, the application of new energy vehicles in the market is becoming more and more extensive, and has become the main development direction of the automobile industry, and the safety of electric vehicles has received more and more attention. Now in most new energy vehicles, after the key signal is turned off, the power management module, which is the core of the power supply system, has no power supply, and it is impossible to conduct a comprehensive safety and reliability evaluation of the power management module after the key signal is turned off Just can't make early warning message prompt and guarantee the safety when running next time. Contents of the invention [0003] The present invention aims to solve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L1/00B60L11/18B60L3/00
CPCB60L1/00B60L3/00B60L58/10Y02T10/70
Inventor 柯克潘耀强余涛马桔华章文俊
Owner CHAOWEI POWER CO LTD
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