Circuit and method for testing influence of inductive load on EMC performance of whole vehicle
A technology of inductive load and test method, which is applied in the direction of vehicle testing, testing of electrical devices in transportation, testing of machine/structural components, etc., can solve the problems of vehicle conduction disturbance and lack, etc., and achieve reliable test results and simple circuits , the effect of easy operation
Pending Publication Date: 2021-12-28
GUANGZHOU AUTOMOBILE GROUP CO LTD +1
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Problems solved by technology
[0002] The inductive load corresponding to the whole vehicle, such as the rear wiper motor, rear blower motor, right front daytime running light, horn, left rearview mirror vertical adjustment motor, electronic fan, etc., does not have enough conduction disturbance to the whole vehicle when it is running stably For proper analysis, it is necessary to set up a suitable test method to detect the influence of inductive load stability on the EMC performance of the vehicle under normal working conditions
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[0057] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0058] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...
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The invention provides a circuit and method for testing the influence of an inductive load on the EMC performance of a whole vehicle. The voltage of a vehicle-mounted storage battery of the vehicle is detected to meet the requirement of a testing environment; an inductive load measuring circuit is established; an inductive load power line measuring circuit is established for testing; after the test is finished, a test file name and a test result are recorded; an inductive load ground wire measuring circuit is establishedfor testing; after the test is finished, a test file name and a test result are recorded; and a power line test result and a ground line test result are compared with a conducted emission test peak value or a mean value limit value, whether the inductive load meets a grade requirement or not is judged, and the load which does not meet the requirement isproperly optimized according to the required grade. Under the whole vehicle body loop condition, whole vehicle inductive load power line test and ground line test are carried out, the inductive load is made to be in conduction disturbance in the stable and normal working state, the whole vehicle EMC performance is analyzed, and the test result is reliable.
Description
technical field [0001] The invention belongs to the field of inductive load testing, in particular to a test circuit and a testing method for the influence of inductive load on the EMC performance of a complete vehicle. Background technique [0002] The inductive load corresponding to the whole vehicle, such as the rear wiper motor, rear blower motor, right front daytime running light, horn, left rearview mirror vertical adjustment motor, electronic fan, etc., does not have enough conduction disturbance to the whole vehicle when it is running stably For proper analysis, it is necessary to set up a suitable test method to detect the influence of inductive load stability on the EMC performance of the vehicle under normal working conditions. Contents of the invention [0003] In view of this, the present invention aims to propose a test circuit and a test method for the influence of an inductive load on the EMC performance of a whole vehicle. Under the condition of the vehicl...
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Login to View More IPC IPC(8): G01R31/00G01M17/007
CPCG01R31/006G01M17/007
Inventor 付国良刘喆林树潮覃宝山何德业武晓宇孙志颖
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD