Special test circuit system for electronic accelerator pedals

Abstract

A special test circuit system for electronic accelerator pedals comprises a force sensor, an angle sensor, a signal preprocessing unit, an A / D conversion unit, a micro controller unit, a photoelectric limit switch, an RS-232 interface, a direct-current gear motor driver, a power unit, and a PC. The test circuit system has the advantages of simple circuit structure, low design and manufacture costs, high detection precision, visual and easy-to-save test results, and high degree of test process automation. The workload of accelerator pedal detection on workers can be reduced greatly, and the production efficiency and product quality can be improved. The special test circuit system for electronic accelerator pedals is of vital significance to the optimization of product quality and the improvement of market competitiveness of products.

Description

Technical field [0001] The invention relates to a special test circuit system for an electronic accelerator pedal, which belongs to the application field of electronic technology. Background technique [0002] According to the Statistical Bulletin of the National Bureau of Statistics and the China Association of Automobile Manufacturers, in 2013, the production and sales of automobiles were 22,116,800 vehicles and 21,984,100 vehicles, an increase of 14.76% and 13.87% year-on-year, and both production and sales ranked first in the world. China has officially entered the automobile society. According to the 2014 National Economic and Social Development Statistical Bulletin issued by the National Bureau of Statistics on February 26, 2015, the number of civilian vehicles nationwide reached 144.75 million at the end of 2014, and the number of vehicles per 1,000 people exceeded one hundred for the first time, reaching 105.83 vehicles / Thousand people. [0003] Authorities in the intern...

AI Technical Summary

Problems solved by technology

[0008] 1) Low test accuracy

Most test systems use cylinders or stepper motors as the power source to drive the movement of the electronic accelerator pedal assembly, but these two driving methods cannot be precisely controlled, which affects the test accuracy

[0009] 2) The test items and test parameters are not comprehensive

At present, domestic test systems are all designed according to enterprise standards, which only solve some of their own needs, and the test items and test parameters are not comprehensive enough and have no versatility.

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