Title:
INERTIAL FORCE DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/149947
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an inertial force detection device with which it is possible to diagnose sensor output without hindrance even when a vehicle is traveling. In order to solve this problem, there is provided an inertial force detection device for measuring inertial force according to a displacement amount of an oscillating body, wherein a diagnosis voltage that is synchronous with an output command signal inputted from the outside is applied. Furthermore, the period over which the diagnosis voltage is applied is shorter, by a prescribed period, than a cycle of the output command signal. Furthermore, at least one of the period over which the diagnosis voltage is applied, the diagnosis voltage, a diagnosis threshold value, and a filter characteristic is varied according to the cycle of the output command signal.
Inventors:
NAKAMURA TOSHIAKI (JP)
HAYASHI MASAHIDE (JP)
TSURU YASUTAKA (JP)
ONO KAZUO (JP)
HAYASHI MASAHIDE (JP)
TSURU YASUTAKA (JP)
ONO KAZUO (JP)
Application Number:
PCT/JP2017/000911
Publication Date:
September 08, 2017
Filing Date:
January 13, 2017
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
G01P21/00; G01C19/5776; G01P15/125
Foreign References:
| JPH05223844A | 1993-09-03 | |||
| US20130218505A1 | 2013-08-22 | |||
| US20110146402A1 | 2011-06-23 | |||
| JP2008107108A | 2008-05-08 | |||
| JPH11230978A | 1999-08-27 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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