Title:
ACCELERATION DETECTION DEVICE AND ATTACHMENT ANGLE DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/002803
Kind Code:
A1
Abstract:
This invention comprises: an acceleration sensor (20) that at least has an sx axis and sy axis that are perpendicular to each other and is placed in a vehicle such that a yaw attachment angle that is the angle between a vehicle reference axis and an imaginary line set between the sx axis and sy axis is within ±15°; an acquisition unit (31) that acquires the sx axis direction acceleration and the sy axis direction acceleration from the acceleration sensor (20) when the vehicle accelerates in the vehicle width direction and has low acceleration/deceleration in the vehicle front/back direction; and an attachment angle calculation unit (37) that calculates a yaw attachment angle using the acquired sx axis direction acceleration and sy axis direction acceleration and an angle calculation formula for which it is assumed that the vehicle is accelerating in the vehicle width direction and not accelerating in the vehicle front/back direction and which has been derived using the fact that the yaw attachment angle tan value can approximate the yaw attachment angle.
Inventors:
CHEN CHAO (JP)
YOSHIDA NAOKI (JP)
YOSHIDA NAOKI (JP)
Application Number:
PCT/JP2022/025337
Publication Date:
January 26, 2023
Filing Date:
June 24, 2022
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01P21/00
Domestic Patent References:
| WO2014171227A1 | 2014-10-23 |
Foreign References:
| JP2011209162A | 2011-10-20 | |||
| JP2005274186A | 2005-10-06 | |||
| CN109459585A | 2019-03-12 |
Attorney, Agent or Firm:
YAHAGI Kazuyuki et al. (JP)
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