Title:
Indicator type meter device
Document Type and Number:
Japanese Patent JP6205219
Kind Code:
B2
Abstract:
In an indicating-needle type meter device, when starting excitation of a stepping motor, a controller sets the phase of an excitation signal to a predetermined excitation start position and returns the phase of the excitation signal by a predetermined reversal angle such that an indicating-needle rotates in the backward direction, thereby positioning the indicating-needle at a stopper position. Subsequently, the controller advances the phase of the excitation signal by an origin return angle to rotate the indicating-needle in the forward direction to an origin position apart from the stopper position by a predetermined angle, thereby positioning the indicating-needle at the origin position. Here, the origin return angle is an angle obtained by adding a backlash angle, a predetermined positive pre-offset angle, and a positive placing error correction angle set based on a placing error of the indicating-needle with respect to the stopper.
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Inventors:
Yoshihisa Yamada
Application Number:
JP2013190826A
Publication Date:
September 27, 2017
Filing Date:
September 13, 2013
Export Citation:
Assignee:
Yazaki Corporation
International Classes:
G01D13/22; H02P8/08
Domestic Patent References:
| JP4176984B2 | ||||
| JP2008008728A | ||||
| JP2006064437A | ||||
| JP2010181287A | ||||
| JP2007232436A |
Attorney, Agent or Firm:
Patent business corporation glory patent office
Hironori Honda
Kiharu Masaharu
Hironori Honda
Kiharu Masaharu