When a electricity signal is weak,and need to be delivered for a long-distance,the attenuation of voltage signal will be enlarged with the resistance of circuitry in the automobile braking force detection system.

Application of ADuC812 in Automobile Braking Force Detecting System and Its Realization Methods in C Language;

Through an example about the practical application of an automobile brake performance testing system, this paper explores the serial communication between Microsoft Comm-control controlware used by master-control computer under Visual Basic in the microcomputer test and control system and AT89C51 single-chip microcomputer with compilation programming.

Introduces the construction and principle of the instrument for testing the force and range of the automobile brake pedal and its calibrater as well as the methods of calibrating and testing the brake pedal range.

An automobile brake measure & test system is developed based on the design of wheel force transducer,and system software is developed with OOP language.

An algorithm of computing the average frequency of motor vehicle brake oil pressure is expounded, by which the increase of oil pressure, steady and reductive frequency in a moment of a motor vehicle braking is also given.