Title:
TIRE POSITION REGISTRATION SYSTEM
Document Type and Number:
Japanese Patent JP2015137077
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a tire position registration system which can correctly judge a tire position.SOLUTION: A tire valve 4 includes a filter part 12 for eliminating other components than gravity in a gravity detection signal Sgr of a gravity detection part 9 and detects a specified position in a tire rotation direction based on the gravity detection signal Sgr obtained through the filter part 12. The filter part 12 is for example, an FIR filter having an imaginary component. A specified position correction part 34 corrects delay time of a filter output generated in a value depending on a frequency of filter input, and corrects the specified position detected in the tire valve 4.
Inventors:
KUMAGAI KATSUHIDE
Application Number:
JP2014011658A
Publication Date:
July 30, 2015
Filing Date:
January 24, 2014
Export Citation:
Assignee:
TOKAI RIKA CO LTD
International Classes:
B60C23/04; H03H17/06
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda