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Detection system and detection method for electric vehicle motor controller

A motor controller and electric vehicle technology, applied in the automotive field, can solve problems such as affecting the driver's driving safety, the drive motor controller being unable to enter the protection action in time, and power failure.

Active Publication Date: 2019-10-18
GUANGZHOU XIAOPENG MOTORS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the drive motor controller converts AC power into DC power to charge the power battery, if the contactor is disconnected abnormally (such as contactor power failure, pop-up, misoperation, etc.), the drive motor controller cannot be notified in time to stop charging. Make the drive motor controller unable to enter the protection action in time, make the various devices in the drive motor controller work under differential pressure, damage each device, cause the vehicle to lose power, and seriously affect the driving safety of the driver

Method used

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  • Detection system and detection method for electric vehicle motor controller
  • Detection system and detection method for electric vehicle motor controller
  • Detection system and detection method for electric vehicle motor controller

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Embodiment Construction

[0076] In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Apparently, the described embodiments are some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0077] refer to figure 1 , shows a flow chart of the steps of an embodiment of an electric vehicle motor controller detection system of the present application. In the embodiment of the present application, the electric vehicle motor controller detection system may include a power battery 101, a distribution Electric box 102, driving motor controller 103, processing module 104, and interlocking cir...

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Abstract

The embodiment of the application provides a detection system and a detection method for an electric vehicle motor controller. The system may include a power battery, a power distribution box, a drivemotor controller, a processing module and an interlocking circuit. The power distribution box is provided with contactors. The two ends of each contact are respectively connected with the power battery and the drive motor controller. The processing module is connected with the contactors, and the interlocking circuit connects the processing module and the drive motor controller. The processing module detects the opening and closing states of the contactors when the motor controller is used for energy recovery; when the contactors are both in the closed state, the interlocking circuit is controlled to be in conduction; and when the contactors are in the open state, the interlocking circuit is controlled to break. The interlock circuit controls the drive motor controller to charge the powerbattery in the conduction state, and controls the drive motor controller to stop charging the power battery when disconnected. The entire device can increase the service life of the vehicle's power system, and can also reduce the risk of damage caused by device abnormal disconnection to the power system during power recovery.

Description

technical field [0001] The present application relates to the field of automobiles, in particular to a detection system for a motor controller of an electric vehicle and a detection method for a motor controller of an electric vehicle. Background technique [0002] With the development of science and technology, cars have become an indispensable means of transportation in life. [0003] In order to meet green environmental protection standards and sustainable development, automobiles are gradually changing from fuel vehicles to electric vehicles, and the core of electric vehicles is the power battery, which provides electricity for the operation of the vehicle. [0004] In order to improve the battery life of electric vehicles, a drive motor controller (referred to as electric control) is installed in the electric vehicle. The drive motor controller is respectively connected to the power battery and the drive motor. Converted to the AC power required by the drive motor. Whe...

Claims

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Application Information

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IPC IPC(8): B60L3/00B60L15/20B60L53/14G05B23/02
CPCB60L3/0061B60L15/20B60L53/14G05B23/0208Y02T10/70Y02T10/7072Y02T10/72Y02T10/92Y02T90/14
Inventor 杨鹏胡孝辉黄树毅艾治国
Owner GUANGZHOU XIAOPENG MOTORS TECH CO LTD
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