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A detection method, device and automobile for a loose fault of a high-voltage connector

A high-voltage connector and fault detection technology, applied in the automotive field, can solve problems such as the risk of thermal accidents, and achieve the effect of avoiding the risk of thermal accidents

Active Publication Date: 2022-05-17
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a detection method, device and vehicle for a high-voltage connector loose fault, which solves the problem of the risk of thermal accidents caused by the high-voltage connector loose connection

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  • A detection method, device and automobile for a loose fault of a high-voltage connector
  • A detection method, device and automobile for a loose fault of a high-voltage connector
  • A detection method, device and automobile for a loose fault of a high-voltage connector

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Embodiment Construction

[0041] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0042] Combine below figure 1 , to introduce the technical architecture of this solution.

[0043] Such as figure 1 As shown in , it shows a technical framework diagram of a detection method for a high-voltage connector loose fault. figure 1 Among them, the output of the power battery is connected to the high-voltage load through the high-voltage connector 1; wherein, V1 is the detected first voltage value of the first connection end of the h...

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Abstract

The invention discloses a detection method, device and automobile for a high-voltage connector loose fault. The method is applied to a battery management system BMS. The BMS is connected to a high-voltage load through a high-voltage connector. The first connection of the high-voltage connector end is connected to the BMS, and the second connection end of the high-voltage connector is connected to the high-voltage load. The method includes: obtaining the first voltage value of the first connection end of the high-voltage connector and the second connection end of the high-voltage connector The second voltage value of the terminal; according to the first voltage value and the second voltage value, the loose fault detection of the high voltage connector is performed. The detection method for the loose fault of the high-voltage connector of the present invention realizes the real-time and accurate detection of the connection reliability of the high-voltage connector, and avoids the risk of thermal accident caused by the loose high-voltage connector of the battery.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a detection method and device for a high-voltage connector loose fault and an automobile. Background technique [0002] The battery that provides the power source for the vehicle in the new energy vehicle is called the power battery. The power battery is the core component of electric vehicles. Its function is to receive and store high-voltage direct current provided by on-board chargers, generators, braking energy recovery devices or external charging devices, and to provide high-voltage direct current for electric vehicles. [0003] The high-voltage and high-power connection terminal (high-voltage connector) output by the power battery may become loose after the vehicle runs for a long time or the battery output terminal is hit by an external force, resulting in an increase in the resistance of the connection position. If the battery pack continues to use a large current D...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L3/00B60L58/10B60L3/04B60L3/12
CPCB60L3/0046B60L58/10B60L3/04B60L3/12Y02T10/70
Inventor 李大治张兆龙吕志伟左艳婷张海艳郭艳秀
Owner BEIJING ELECTRIC VEHICLE