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Method and device for avoiding false activation of back door

A back door and false start technology, which is applied in transportation and packaging, anti-theft vehicle accessories, vehicle parts, etc., can solve the problems of reducing the safety of the user's car and opening the back door by mistake

Active Publication Date: 2020-04-24
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the method of inductively opening the back door uses a capacitive sensor to detect the user’s kicking action, and the capacitive sensor is easily affected by the external environment, when the environment changes drastically, for example, when the environment changes from a low temperature environment to a high temperature environment, the back door error may occur. open, thereby reducing the user's car safety

Method used

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  • Method and device for avoiding false activation of back door
  • Method and device for avoiding false activation of back door
  • Method and device for avoiding false activation of back door

Examples

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Embodiment Construction

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0037] When the external environment of the vehicle is relatively stable, the capacitance of the capacitive sensor is relatively stable, and when the external environment changes drastically, the environmental physical quantities such as temperature and humidity will also change drastically, resulting in a dielectric loss around the capacitive sensor. The drastic change of the constant will inevitably have a great impact on the capacitance due to the drastic change of the dielectric constant.

[0038] Specifically, the calculatio...

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PUM

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Abstract

The invention provides a method and device for avoiding mistakenly starting a back door, and the method comprises the following steps: collecting a capacitance signal of a kicking capacitance sensor which is used for detecting the kicking action of a user; collecting a capacitance signal of an environment capacitance sensor for detecting environment changes; judging whether the capacitance signalof the kicking capacitance sensor and the capacitance signal of the environment capacitance sensor simultaneously exceed a preset threshold value or not; determining that the current environment changes violently if it is judged that the capacitance signal of the kicking capacitance sensor and the capacitance signal of the environment capacitance sensor exceed the preset threshold value at the same time; maintaining closure of the back door. The method comprises the following steps: on the basis of detecting the kicking action of the user by the kicking capacitance sensor; adding the environment capacitance sensor to detect the environment change, so that whether the change of the capacitance signal in the kicking capacitance sensor is caused by the dramatic change of the current environment can be determined, the mistaken starting of the back door can be avoided, and the vehicle usage safety of the user is ensured.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a method and a device for avoiding false activation of a rear door. Background technique [0002] With the continuous development of vehicle control technology, users have higher and higher requirements for the intelligence of vehicles. Intelligent vehicles that integrate functions such as environmental perception and multi-level assistance have emerged as the times require, and the rear door sensor opening system has also entered the stage of intelligent vehicles under the needs of this large environment. [0003] In the prior art, the opening of the back door is controlled through the method of inductively opening the back door. For example, a user may open the tailgate by making a kicking motion near the tailgate. Since the method of inductively opening the back door uses a capacitive sensor to detect the user’s kicking action, and the capacitive sensor is easily aff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R25/20
Inventor 黄亚琴陈明杨圆
Owner BYD CO LTD