Research On Multi-parameter Measuring System For Technical Performance Of Electro-hybrid Bicycles

Electro-hybrid bicycle is in the ascendant in China. It is obvi6usly important to measure the technical performance of the bicycle. This paper presents the research on primary technical performance of electro-hybrid bicycle based on intelligence measuring technology.The principle and character of adaptive measuring method are proposed based on discussing the development, structure and characteristic of intelligence measuring system. The testing principle and the performing method of testing items such as speed, range, load, discharge voltage and current for electro-hybrid bicycle are described based on deciding the items. Discussion and design of the method and Hall sensor of speed test are keystone, and an adaptive method of rotation calculation is presented. Meanwhile several parameters are measured at one time in the system, therefore the analog signals can be converted frequency signals by making use of signal acquisition system. The uniform pattern in the hardware and uniform How in the software can implement the multi-function design for single machine. Ultimately the uniform multi-parameter intelligent measuring method comes into being.The electric quantity and non-electric quantity are measured in an intelligent testing system in which 8031 single-chip microcomputer is lower machine and PC is upper machine based on the above measuring method. The measuring system contains several modules such as signal acquisition subsystem, 8031 SCM subsystem, display and print subsystem, data traffic subsystem. Making use of mighty software function can control the system and implement the functional requirements of the system. In addition, error of the result is analyzed, and the resolving ways are put forward. Finally this paper presented the anti-interference measure for the system.Researching the intelligent measuring system for primary technical performance of electro-hybrid bicycle can explore more effective and more scientific methods for the multi-parameter intelligent measurement. This can promote the development of measuring technology. Consequently precision and exactness of the system are improved.