Dual-fuel vehicle air tightness and air permeability detection device and control method thereof
A technology for dual-fuel vehicles and detection devices, which can be used in measuring devices, liquid-tightness measurement using liquid/vacuum degree, and vehicle testing. The effect of saving labor costs, high degree of intelligence, and simple operation
Active Publication Date: 2017-10-31
ZHEJIANG JINGANG AUTOMOBILE +1
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[0004] The purpose of the invention is to overcome the deficiency that the equipment in the prior art cannot detect the airtightness and ventilation of dual-fuel vehicles, and to provide a dual-fuel vehicle with high airtightness and ventilation detection accuracy. Air permeability detection device and control method thereof
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[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0042] like figure 1 , figure 2The illustrated embodiment is a dual-fuel automobile air tightness and air permeability detection device, the detection device is respectively connected with the air 1, the diagnostic interface 2 of the automobile, and the vehicle air supply system 3 of the automobile; the vehicle air supply system includes The high-pressure air supply system 27 and the low-pressure air supply system 28 communicated through the air guide tube. The air guide tube is provided with a pressure reducing valve 4 electrically connected to the diagnostic interface. A gas filter 6 electrically connected to the interface;
[0043] The detection device includes a controller 7, a display 8, a pressure sensor 9 for detecting the pressure of the calibration object 31, a differential pressure sensor 10, an air pump 11 for inhaling air, an air...
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The invention discloses a dual-fuel automobile air tightness and air permeability detection device and a control method thereof. The detection device is respectively connected with the air, the diagnostic interface of the automobile, and the vehicle air supply system of the vehicle; the vehicle air supply system It includes a high-pressure air supply system and a low-pressure air supply system connected through an air guide tube. A pressure reducing valve electrically connected to a diagnostic interface is provided on the air guide tube. The high-pressure air supply system includes an automobile inflation valve, and the low-pressure air supply system includes a diagnostic interface An electrically connected gas filter; the invention has the characteristics of high air tightness and air permeability detection accuracy; high intelligence; labor cost saving, simple operation and high detection efficiency.
Description
technical field [0001] The invention relates to the technical field of dual-fuel vehicles, in particular to a dual-fuel vehicle air-tightness and air-permeability detection device with high detection accuracy and a control method thereof. Background technique [0002] With the rise of oil prices and the enhancement of environmental protection awareness, dual-fuel vehicles are becoming more and more popular among consumers, especially CNG dual-fuel vehicles with affordable prices and mature technologies have become the first choice for more families and rental operators. With the increase in demand for CNG vehicles, the original CNG vehicle gas air tightness testing equipment and testing beats cannot meet the needs of existing mass production, and cannot realize air permeability testing, and cannot provide consumers with safer and more reliable CNG vehicles. [0003] Chinese Patent Authorized Publication No.: CN202210018U, authorized public date on May 2, 2012, discloses a b...
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IPC IPC(8): G01M3/26G01M17/007
Inventor 李书涛
Owner ZHEJIANG JINGANG AUTOMOBILE