Device and method for testing electromagnetic interference
An electromagnetic interference and testing device technology, applied in the direction of measuring device, electrical testing/monitoring, measuring electricity, etc., can solve the problem of inability to test the electromagnetic interference interference characteristics of hybrid electric vehicles
Inactive Publication Date: 2014-01-22
CHONGQING CHANGAN AUTOMOBILE CO LTD
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[0005] In view of this, the present invention provides a kind of electromagnetic interference testing device and method, to solve the problem that can not test the interference characteristic of the electromagnetic interference on the hybrid electric vehicle in the prior art, its specific scheme is as follows:
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[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0035] The structural representation of the electromagnetic interference testing device disclosed by the present invention is as follows: figure 1 shown, including:
[0036] Controller 101, the torque signal transmission CAN module 102 connected to the controller 101, the motor controller 103 connected to the CAN signal receiving interface and the torque signal transmission CAN module 102, the motor controller 103 is grounded, and The high-voltage power batte...
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The invention discloses a device and a method for testing electromagnetic interference. A torque signal transmission CAN (controller area network) module transmits a torque signal sent by a controller to a motor controller; and the motor controller controls the rotating speed of a load driving motor according to the received torque signal, so that the load driving motor works in a proper working state, and a test receiver receives a transmission interference value which is formed by the motor controller at a low-voltage power supply end and a radiation interference value which is formed by the motor controller in a position of a receiving antenna. According to the device and the method, the receiver is tested to receive the transmission interference value and the radiation interference value of the motor controller, and technical conditions are provided for technical workers to solve the problems caused by the interference characteristics of strong interference devices such as the motor controller and the like during operation of hybrid electric vehicles.
Description
technical field [0001] The invention relates to the field of electromagnetic interference testing, in particular to an electromagnetic interference testing device and method. Background technique [0002] Hybrid electric vehicles have the advantages of energy saving and environmental protection. Under the current situation that pure electric vehicles are limited by the problems of poor battery life and high cost, the research and development of hybrid electric vehicles has received extensive attention at home and abroad. [0003] The power system of a hybrid electric vehicle includes motor controllers, drive motors, and DC / DC converters. These power devices have the characteristics of high operating voltage / current, high power, and high switching frequency, which will cause serious electromagnetic interference. The electromagnetic noise and electromagnetic interference formed by the power device during the working process propagate along the cable and chassis of the hybrid v...
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Login to View More IPC IPC(8): G01R31/00G05B23/02
Inventor 郭迪军李旭吴存学熊荣飞陈渝吴仁钢
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD