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Electric automobile fault on-line monitoring device

A technology for electric vehicles and monitoring devices, which is applied in the direction of measuring devices, testing electrical devices in transportation, measuring electricity, etc., and can solve problems such as inability to diagnose and early warning of poor insulation and aging contacts of the whole vehicle

Inactive Publication Date: 2017-02-01
BEIJING MUNICIPAL INST OF LABOUR PROTECTION
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Problems solved by technology

[0003] However, this monitoring method is based on the corresponding functions of the equipment itself, and the data is collected after the fault occurs, and the analysis here is all traditional small-risk faults, and it is impossible to realize the insulation aging, overvoltage disconnection, poor contact, etc. of the whole vehicle. Preliminary diagnosis and early warning of faults

Method used

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  • Electric automobile fault on-line monitoring device

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present disclosure.

[0021] The invention provides an online fault monitoring device for an electric vehicle, such as figure 1 As shown, the device includes an electromagnetic field detection unit, a wave detection acquisition unit, a network transmission unit and a diagnosis management unit, wherein:

[0022] The electromagnetic field detection unit is installed on the electric vehicle and is used to detect the electromagnetic field information at the installati...

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Abstract

The invention relates to an electric automobile fault on-line monitoring device, which comprises electromagnetic field detection units, which are arranged on an electric automobile and are used for detecting electromagnetic field information at the installation places; demodulation acquisition units, which are connected with the electromagnetic field detection units respectively, and are used for collecting the electromagnetic field information detected by the electromagnetic field detection units, and carrying out pretreatment on the electromagnetic field information; a network transmission unit, which is used for transmitting the electromagnetic field information obtained after pretreatment of the demodulation acquisition units to a diagnosis management unit; and the diagnosis management unit, which is used for carrying out fault analysis according to the received electromagnetic field information, and displaying the analysis result to a central display screen of the electric automobile. The fault on-line monitoring device can detect whether the electric automobile has fault and can also detect whether electrical equipment has abnormal cases of insulation aging, overvoltage short circuit and poor contact and the like to realize fault early warning.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to an online fault monitoring device for electric vehicles. Background technique [0002] At present, the fault monitoring method of electric vehicles is generally as follows: the operation information and fault codes of each component are sent to the on-board diagnostic management unit in the central processing area through the CAN bus, and data analysis is performed thereby. [0003] However, this monitoring method is based on the corresponding functions of the equipment itself, and the data is collected after the fault occurs, and the analysis here is all traditional small-risk faults, and it is impossible to realize the insulation aging, overvoltage disconnection, poor contact, etc. of the whole vehicle. Fault diagnosis and early warning. Contents of the invention [0004] In view of the above defects, the present invention provides an online fault monitoring device...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R31/02
CPCG01R31/006G01R31/50
Inventor 高辉石嵩李华芳梅南
Owner BEIJING MUNICIPAL INST OF LABOUR PROTECTION
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