Title:
TOUCH DETECTION METHOD AND APPARATUS FOR STEERING WHEEL
Document Type and Number:
WIPO Patent Application WO/2022/237716
Kind Code:
A1
Abstract:
Provided are a touch detection method and apparatus for a steering wheel. A steering wheel comprises at least one touch detection region, each touch detection region being provided with at least one touch detection sensor. The method comprises: for each touch detection region, generating a plurality of reference signals that correspond to a plurality of specific frequencies on a one-to-one basis; respectively applying each reference signal to a touch detection sensor in the touch detection region, and acquiring, from the touch detection sensor, each touch detection signal under each reference signal; acquiring measurement values of the touch detection signals; according to the measurement values of the touch detection signals, determining touch detection states that respectively correspond to the touch detection signals; and on the basis of the quantity of each type of touch detection states in the touch detection states corresponding to the touch detection signals, determining a touch state of the touch detection region of a steering wheel, wherein the touch state comprises a non-hand-off state, a hand-off state and an invalid state.
Inventors:
HE CHUAN (CN)
Application Number:
PCT/CN2022/091662
Publication Date:
November 17, 2022
Filing Date:
May 09, 2022
Export Citation:
Assignee:
VALEO INTERIOR CONTROLS SHENZHEN CO LTD (CN)
International Classes:
G06F3/041
Foreign References:
| CN106104438A | 2016-11-09 | |||
| CN112721938A | 2021-04-30 | |||
| CN102830837A | 2012-12-19 | |||
| US9921668B1 | 2018-03-20 | |||
| CN111078053A | 2020-04-28 |
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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