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Electric vehicle high voltage system connector detection device

A technology of electric vehicles and high-voltage systems, which is applied in the direction of electric vehicles, battery/fuel cell control devices, control drives, etc., can solve the problems of reduced safety of electric vehicles, improve safety, ensure personal safety, and solve reduced safety Effect

Active Publication Date: 2017-10-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the safety of the electric vehicle cannot be detected in time due to the failure of the existing electric vehicle, and a detection device for the connector of the high-voltage system of the electric vehicle is proposed

Method used

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  • Electric vehicle high voltage system connector detection device
  • Electric vehicle high voltage system connector detection device
  • Electric vehicle high voltage system connector detection device

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specific Embodiment approach 1

[0022] Specific implementation mode 1, refer to figure 1 Describe this embodiment in detail, the electric vehicle high-voltage system connector detection device described in this embodiment, it comprises vehicle controller 1, motor controller 2, power battery 3, n high-voltage electrical equipment 4, driving motor 5 and The battery management system 9; n is a positive integer; the power battery 3 is provided with a power battery case; the motor controller 2 is provided with a motor controller case; the high-voltage electric device 4 is provided with a high-voltage electric device case;

[0023] The power battery on-off signal output end of the vehicle controller 1 is connected to the power battery on-off signal input end of the battery management system 9; the power battery on-off signal output end of the battery management system 9 is connected to the power battery on-off signal input of the power battery 3 end; the motor control signal output end of the vehicle controller 1 ...

specific Embodiment approach 2

[0041] Specific Embodiment 2. This embodiment is a further description of the electric vehicle high-voltage system connector detection device described in Embodiment 1. In this embodiment, the control module is used to control the motor controller 2 or power The battery 3 sends corresponding control commands to make the motor controller 2 or the power battery 3 act. The specific process is as follows:

[0042] If the fault state is fault 3, that is, the power battery connector 6 fails, the control module in the vehicle controller 1 controls the power battery 3 to stop power supply through the battery management system 9, and also sends the motor controller 2 through the motor controller 2 to drive Motor 5 emergency stop;

[0043] If the fault state is fault 1, that is, the high-voltage electrical equipment connector 8 fails, the control module in the vehicle controller 1 makes the driving motor 5 stop urgently through the motor controller 2;

[0044] If the fault state is fault...

specific Embodiment approach 3

[0045] Specific Embodiment 3. This embodiment is a further description of the electric vehicle high-voltage system connector detection device described in Embodiment 1. In this embodiment, it also includes an alarm module, and the alarm signal input terminal of the alarm module is connected to the vehicle control system. The alarm signal output terminal of device 1 is used to alarm the driver when the fault state is fault 1.

[0046] If the fault state is fault 1, that is, the high-voltage electrical equipment connector 8 fails, the vehicle controller 1 sends an alarm to the driver through the alarm module.

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Abstract

The invention discloses a connector detection device for a high-pressure system of an electric car and relates to the field of electric car failure detection. The problem that as an existing electric car can not discover failures in time, the security of the existing electric car is reduced is solved. When one or more of a high-pressure electric equipment connector, a motor controller connector and a power battery connector loose or disengage, the parallel total resistance value received by a car control unit changes; the received parallel total resistance value is compared with the parallel total resistance value pre-stored in the car control unit; and if the actually received parallel total resistance value corresponds to the pre-stored parallel total resistance value, the car control unit obtains a corresponding failure state through judgment and sends a control instruction to a motor controller or a power battery in real time, so that the motor controller or the power battery adopts corresponding measures. The connector detection device is suitable for security detection of other cars.

Description

technical field [0001] The invention relates to the field of electric vehicle fault detection. Background technique [0002] At present, the technology of new energy vehicles, especially electric vehicles, has gradually matured. Electric vehicles have entered the stage of testing and demonstration operation. During the use of electric vehicles, collisions and loose power lines will inevitably occur. Such phenomena usually cause Leakage will cause the body chassis to be electrified, which will easily cause secondary injuries to the people in the car and the vehicle, and even cause a fire. Therefore, how to maximize the safety of people and vehicles in the vehicle and meet the safety requirements of electric vehicles is a technical problem that electric vehicles need to solve. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the safety of the electric vehicle is reduced due to the inability to detect the fault in time in t...

Claims

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Application Information

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IPC IPC(8): B60L15/20B60L11/18
CPCB60L15/20B60L58/10Y02T10/70Y02T10/72
Inventor 崔淑梅张超韩守亮
Owner HARBIN INST OF TECH
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