Design of Hall Vehicle Speed Sensor Comprehensive System

Abstract

A hall speed sensor detection system is designed in this paper. The system consists of the controlling circuit part, the detecting circuit part and the microcomputer part. The system’s structure is simple. It has the advantages such as lower cost, intuitive display and user-friendly. The detecting accuracy can meet the requirements of industrial production, and be suitable for mass production.

An Improved Hall Vehicle Speed Sensor Detection System

“…The 10% and 90% of the total voltage as reference signal are formed from the resistors of R3, R4 and R5. Compared with the original signal Q0, all key moments are converted into the edge-triggered signal using the voltage comparator of U4 [3].…”

“…To achieve the performance testing of the Hall vehicle speed sensor, a variety of methods have been proposed. We have proposed a simple and reliable method of Hall vehicle speed detection in the literature [3]. The rising time, falling time, period, the voltage amplitude and the number of pulses are evaluated by using time information of some key points.…”