CN-115407141-B - Method and device for verifying electromagnetic clean cabin parts in vehicle

CN115407141BCN 115407141 BCN115407141 BCN 115407141BCN-115407141-B

Abstract

The invention relates to a verification method and a device for parts of an electromagnetic clean cabin in a vehicle, wherein the verification method comprises the steps of identifying the installation position of the parts in the whole vehicle; the method comprises the steps of determining parts to be tested, dividing the parts, detecting the divided parts to be tested through a measuring device, and carrying out data processing and data analysis on the data of the installation position of the identified parts in the whole vehicle. The verification device comprises an insulating support and a measuring device arranged on the insulating support, wherein the insulating support is used for placing parts to be tested, the measuring device is used for detecting the divided parts to be tested, and the measuring device comprises a detection probe and a detection machine body. According to the invention, all parts of the whole vehicle are not required to be tested, so that the authentication risk of electromagnetic cleaning of the whole vehicle is greatly reduced, the design reworking in the later development period of the vehicle is avoided to the greatest extent, the development period is shortened, and the risk prevention in the development process is realized.

Inventors

HU DEZHI
TIAN FEIXIONG
GUO ZEJIAN
ZHU LIMING
LI JIANCAI

Assignees

奇瑞汽车股份有限公司

Dates

Publication Date: 20260505
Application Date: 20220725

Claims (5)

1. An in-car electromagnetic clean cabin component verification method, the verification method comprising: identifying the mounting positions of parts in the whole vehicle, wherein the mounting positions comprise a driver position, a copilot position, a central control position and a passenger position; Determining a part to be tested; Dividing the parts; Detecting the divided parts to be detected through a measuring device; Performing data processing and data analysis on the detection data; Dividing the parts comprises dividing the parts into rated power parts and constant-current constant-voltage parts according to the working principle of part design; The detection of the divided parts to be detected comprises magnetic induction intensity detection when working at the lowest voltage and magnetic induction intensity detection when working at the maximum power state; the detection at the lowest voltage is aimed at rated power parts, and the detection at the maximum power state is aimed at constant current and constant voltage parts; The detecting of the divided parts to be detected comprises detecting all surfaces of the parts and detecting wiring harnesses of the parts; The data analysis comprises the steps of comparing the obtained detection data with the magnetic induction intensity value, and if the detection data in all the test frequency ranges are less than or equal to 15% of the magnetic induction intensity value, the detection data are qualified, otherwise, the detection data are unqualified; The test frequency range is 10 Hz-400 kHz.
2. The method for verifying an in-vehicle electromagnetic clean cockpit component of claim 1 wherein, The data processing comprises the steps of corresponding the detection data to the test frequency points, ensuring that the data is complete and free from loss, classifying the detection data, and remarking the test positions of the parts corresponding to the detection data.
3. A verification device for carrying out the verification method according to any one of claims 1 to 2, said verification device comprising an insulating support (3) and a measuring device (2) arranged on the insulating support (3), The insulation support (3) is used for placing components to be tested, the measuring device (2) is used for detecting the divided components to be tested, and the measuring device (2) comprises a detection probe (201) and a detection machine body (202).
4. The authentication apparatus according to claim 3, wherein, The verification device further comprises a test load (1), wherein a plurality of artificial power supplies (5) are connected to the test load (1), and the artificial power supplies (5) are connected with a storage battery (4) through electric wires.
5. The authentication apparatus of claim 4, wherein, The test load (1) is connected with the wire harness of the part to be tested.

Description

Method and device for verifying electromagnetic clean cabin parts in vehicle Technical Field The invention belongs to the technical field of intelligent health cabin authentication, and particularly relates to a method and a device for verifying electromagnetic clean cabin parts in a vehicle. Background Along with the increasing degree of electronic and electrical appliances and intelligence of vehicles, the electromagnetic environment in the vehicles is more and more complex, the influence of the complex electromagnetic environment on the health of human bodies is also continuously increased, the attention of people on the health in the vehicles is also more and more increased, the intelligent health authentication requirement of the vehicles is prolonged, the electromagnetic clean cabin authentication is a key ring, the current electromagnetic clean cabin authentication only meets the requirement of the whole vehicles, and whether the authentication requirement is met can be determined only after the whole vehicle test is carried out in the later period of vehicle development, which undoubtedly brings a lot of trouble to the development of the vehicles. However, how to better meet the authentication requirement of the electromagnetic clean cabin, the essence of electromagnetic disturbance sources finally falls onto parts, if the relevant requirements of the electromagnetic clean cabin are required to be met in the development process of the parts, the authentication risk can be avoided to a great extent, the development progress of vehicles is ensured, and then the current industry does not have a corresponding management and control measurement method for the relevant parts of the electromagnetic clean cabin. According to the method, a radiation immunity test device performs a whole vehicle radiation immunity test on an automobile in an electromagnetic compatibility darkroom, a field intensity meter collects field intensity information of a target position which is separated from the position of a tested part by a set distance through a field intensity meter probe, an upper computer obtains the field intensity information, determines a field intensity curve corresponding to the tested part in the whole vehicle radiation immunity test, and matches the field intensity information of the target position with the field intensity curve through closed-loop control of the radiation immunity test device to obtain a test curve required by executing the radiation immunity test of the part, and when the tested part is positioned in the electromagnetic compatibility darkroom, the radiation immunity test device performs the radiation immunity test of the part on the tested part based on the test curve. According to the method, the effect of the test intensity of the whole vehicle test working condition is used, although the effect of previewing the radiation immunity test of the whole vehicle through the radiation immunity test of the parts can be achieved, risks can be avoided in advance, the problem that the radiation immunity test of the whole vehicle can pass through, the radiation immunity field intensity is excessive or insufficient caused by the existing test mode can be solved, but when the radiation immunity test of the vehicle is carried out, all parts of the whole vehicle are required to be scanned, and the key parts are not subjected to control and test in a targeted manner, so that the workload is large, the test efficiency is low, and the development period is too long. The Chinese patent with publication number CN205091396U discloses an electromagnetic radiation detection device of an electric automobile, which comprises a fixed bracket, a detector fixing device and a radiation measurement probe, wherein the fixed bracket comprises a horizontal bracket body, a vertical bracket body and an angle adjusting shaft. During testing, the included angle between the horizontal frame body and the vertical frame body is enabled to simulate the human body shape of a riding state as much as possible through adjusting the angle adjusting shaft, and meanwhile, according to the body shape of a simulated crowd, the horizontal sliding block is adjusted to move horizontally along the horizontal sliding rail, and the vertical sliding block is adjusted to move vertically along the vertical sliding rail. Then each sliding block is fixed, two radiation measuring probes are started to carry out radiation measurement, and the radiation quantity received by two parts of the chest and crotch of the human body is simulated. Although the radiation quantity received by each part of the head, the chest, the crotch and the like of each crowd of different statures in the electric vehicle can be measured respectively by simulating the posture of a human body in the vehicle, the induction degree of the radiation and the like generated by the vehicle parts in different working states is different, and the radiation quantity generated by