Title:
STEERING WHEEL UNIT
Document Type and Number:
WIPO Patent Application WO/2024/029114
Kind Code:
A1
Abstract:
Since there is necessarily a dead zone where a sensor cannot be placed due to appearance and design restrictions of a steering wheel unit, the purpose of the present invention is to provide a steering wheel unit capable of determining whether there is contact of a hand of an operator even in a dead zone where there is no sensor. In this steering wheel unit, if an electrostatic capacitance measured by a capacitance measurement unit is at least a first threshold when set in a self-capacitance detection mode by a mode switching unit, it is determined that a hand of an operator is contacting a position, on a rim, that overlaps at least one of a plurality of electrodes. If the electrostatic capacitance is at least a second threshold, which is lower than the first threshold, and is less than the first threshold, the mode is switched from the self-capacitance detection mode to a mutual-capacitance detection mode. Thereafter, if the electrostatic capacitance measured by the capacitance measurement unit in the mutual-capacitance detection mode is at least a third threshold, it is determined that a hand of the operator is contacting a position, on the rim, that overlaps with a gap between the plurality of electrodes.
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Inventors:
MIYAGAWA HAYATO (JP)
ABE SHINYA (JP)
ABE SHINYA (JP)
Application Number:
PCT/JP2023/007792
Publication Date:
February 08, 2024
Filing Date:
March 02, 2023
Export Citation:
Assignee:
ALPS ALPINE CO LTD (JP)
International Classes:
B62D1/06; B60R16/027; G01B7/00
Foreign References:
| JP2021165642A | 2021-10-14 | |||
| JP2021146842A | 2021-09-27 | |||
| JP2018067423A | 2018-04-26 | |||
| JP2018065547A | 2018-04-26 | |||
| JP2017188458A | 2017-10-12 | |||
| JP2015031552A | 2015-02-16 | |||
| US20190210629A1 | 2019-07-11 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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