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Vehicle door handle with capacitive proximity sensor

A technology for proximity sensors and door handles, applied to wing handles, vehicle locks, electrical components, etc., can solve problems affecting capacitance and detection sensitivity, and achieve the effect of reducing energy consumption and improving detection sensitivity

Inactive Publication Date: 2014-11-05
HUF HULSBECK & FURST GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The disadvantage of this system is that while the detection range is not adversely affected, the material can have an effect on the detection sensitivity
Capacitance is affected even when electrically insulating materials are used

Method used

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  • Vehicle door handle with capacitive proximity sensor
  • Vehicle door handle with capacitive proximity sensor
  • Vehicle door handle with capacitive proximity sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] figure 1 The door handle 1 shown is installed in a car. A cover plate 2 is arranged on the door handle, covers on the door handle part 5. The shown operating parts 3a and 3b can be fitted in holes in a vehicle door panel and interact with mechanical locking elements in the door.

[0036] The design of the door handle is such that there is an area 4 behind the door handle, and the cover plate 2 and the door handle part 5 form the door handle.

[0037] figure 2 Shown is a side view of the door handle, the cover 2 is clearly recognizable by the user when approached. Furthermore, the illustrated operating range 7 is positioned in the operating range of the thumb when mounted on a motor vehicle. Car functions are realized through the interaction of the operating range 7.

[0038] Various electronic components, mainly sensors and antenna arrangements, can be installed in the door handle 1 . Figure 3a Remove cover 2 as shown in the angled view of the door handle in . ...

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Abstract

A door handle device (1) for motor vehicles, having a handle body (5) and a cover (2) for the handle body, wherein the handle body (5) and the cover (2) form a handle for a user. An accommodating space for accommodating electronic components is formed between the handle body (5) and the cover (2). A capacitive proximity sensor (7a) is arranged in the accommodating space, wherein the proximity sensor has an active capacitive face, directed towards the cover (2), for detecting approaching movements. In order to detect approaching movements, the capacitive face is coupled to an evaluation circuit which detects changes in the capacitance of the capacitive face. A sealing means (10) composed of a closed-cell foam is arranged in the accommodating space, wherein the sealing means (10) has at least one continuous opening which is spaced apart from the edge of the sealing means. The sealing means (10) is arranged with a continuous opening above the active face of the proximity sensor (7a) and is compressed between the cover (2) and the handle body (5), with the result that at least one area above the active face of the proximity sensor is free of foam.

Description

technical field [0001] The invention relates to a sensor device for detecting the approach of a user, mainly a car door handle system with a capacitive proximity sensor. Background technique [0002] Capacitive sensor systems of this type are known in technology and are able to detect approaching objects without contact by the user. When a user approaches the handle part, a change in capacitance of the electrode assembly is detected. For example patent DE102005061755A1. [0003] The technical state of the sensor system in this structure is a "passive access control" system, and the user can enter the car without operating the wireless controller button. The user can completely become the wireless operating system of the ID sensor (identification sensor) to operate (in the pocket of the clothes or in the briefcase). At the same time, the proximity sensor can detect that the user is approaching the car door, and the controller installed in the car sends a wireless signal to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05B77/34E05B81/76H03K17/955
CPCE05B81/77H03K17/955E05B81/78E05B85/16E05B77/34Y10T292/57E05B7/00E05B17/22E05B65/10
Inventor 马丁·怀特安德鲁·佩施尔
Owner HUF HULSBECK & FURST GMBH & CO KG
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