Method for opening an opening panel of a motor vehicle by motion detection, using a doppler radar, and associated detection device
US12246677B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2020 |
| Grant date | Mar 11, 2025 |
| Priority date | — |
| Expiry date | Apr 30, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/93272
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Disclosed is a method for opening an opening element of a motor vehicle having a device detecting a predetermined movement of a user's body part, including a Doppler radar, including an antenna, radar waves transmitter/receiver and a radar wave processor. The method includes detection modes and standby modes with reduced wave frequency, the method including during standby: Phase demodulating the reflected radar waves and determining a first signal representing a phase variation of the reflected waves over time; Phase-shift demodulating the reflected radar waves, and determining a second signal representing phase variation of the reflected waves shifted as a function of time; Comparing threshold to maximum value of the absolute values for the first and second signals; Exiting the standby mode and triggering the detection mode if the maximum is greater than the predetermined threshold; Opening the opening element if the predetermined movement is detected during the detection mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.