Low-cost tachometer based on the recursive frequency estimation for automotive applications

G. H. Choi, W. S. Ra, T. S. Yoon, J. B. Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

As electronic industries grow more and more, there are many applications with motors. In a car system, there are also many parts adopting motors. These motor systems can be controlled with their frequency information obtained from motor currents, hall sensor output, tachometer and etc. In this paper, we use a WRLS(Weighted Robust Least Square) estimator [5] to estimate motor frequency with the signal gets from a linear hall sensor. To prove its performance, we compare the estimates from WRLS estimator with those from an analog tachometer. Experimental results show that the WRLS estimator works well in varying frequency and sensor bias situation. However, the WRLS estimator has defects at low frequency or over the discontinuous bias variation of a linear hall sensor.

Original languageEnglish
Title of host publicationSICE Annual Conference, SICE 2007
Pages46-49
Number of pages4
DOIs
Publication statusPublished - 2007
EventSICE(Society of Instrument and Control Engineers)Annual Conference, SICE 2007 - Takamatsu, Japan
Duration: 2007 Sep 172007 Sep 20

Publication series

NameProceedings of the SICE Annual Conference

Other

OtherSICE(Society of Instrument and Control Engineers)Annual Conference, SICE 2007
CountryJapan
CityTakamatsu
Period07/9/1707/9/20

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering

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