Capacitive automatic reversing device and method for operating automatic reversing device

An automatic reversing, capacitive technology, applied in the direction of the power control mechanism, the control mechanism of the wing leaf, the electronic switch, etc., can solve the problems that the electrical connection cannot be guaranteed, measurement error, contact reduction, etc.

Inactive Publication Date: 2010-09-22
MICRO EPSILON MESSTECHNIK GMBH & CO KG
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A long-standing problem with contact automatic reversing devices is that, in principle, contact must occur
[0005] The disadvantage of the known method with two electrodes is that the ground is not clearly defined in all parts that are not firmly connected to ground
For vehicles, for example, the ground wire can have a potential difference of several volts, depending on the installation location, which can lead to serious measurement errors
Therefore, a definitive electrical connection to the body cannot be guaranteed in the doors or tailgate, where contact is reduced by lubricants in the door hinges or corrosion of the metal surfaces

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Capacitive automatic reversing device and method for operating automatic reversing device
  • Capacitive automatic reversing device and method for operating automatic reversing device
  • Capacitive automatic reversing device and method for operating automatic reversing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] figure 1 The basic design of the capacitive automatic reversing device 1 of the present invention is shown. The two sensor electrodes - the first electrode 2 and the second electrode 3 - each consist of wires which are spaced apart and run parallel to each other along the edge of the seal of the door or window to be fastened thereto. The wires can be integrated in the sealing rubber of the window pane of the car door. The two electrodes 2, 3 form a capacitance C 传感器 . The parasitic capacitance with respect to ground M1 generated by the structure or its environment is defined as C 偏置P and C 偏置N . If an object, such as a finger 4, approaches the sensor device 1, the capacitance C 传感器 will change. The measurement of the capacitance or its change is carried out with the evaluation circuit 5 designed as an amplifier circuit, which is indicated by the symbol of an operational amplifier. The evaluation takes place in a known manner, eg by charge measurement or by time ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A capacitive anti-pinch means with a first electrode (2) and a second electrode (3), wherein the first electrode (2) and the second electrode (3) form the electrodes of one sensor, is, as regards a measurement which is independent of a ground potential (M1), characterized in that the first electrode (2) can be fed a first potential (Uref+), in that the second electrode (3) can be fed a second potential (Uref-), wherein the second potential (Uref-) is different from the first potential (Uref+), and in that said means are equipped with evaluation electronics (5) which determine the difference between the first potential (Uref+) and the second potential (Uref-) and determine the capacitance (CSensor) of the sensor from said difference. A corresponding method for operating the anti-pinch means is disclosed.

Description

technical field [0001] The invention relates to a capacitive autoreverse having a first electrode and a second electrode forming the electrodes of a sensor. The invention also relates to a method of operation of a corresponding automatic reversing device. Background technique [0002] Automatic reversing devices and methods for use on doors, hatches, sunroofs, convertible tops and the like are well known in practice. Optical, contact and capacitive methods are mainly used here. For industrial applications, take DE 40 06 119 A1 and EP 1 474 582 A1 as examples; for automotive applications, take DE 43 29 535 A1, DE 103 10 066 B3, DE 197 20 713 C1, DE 199 13 879 C1, DE 102 20 725 C1, DE 103 05 342 B4 and EP 1 154 110 B1 as examples. [0003] In contact automatic reversing devices, it is critical to detect obstacles in direct contact between the sensor and the object to be recognized. Types with one or two conductors are already known. For example, the sensor described in EP...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/955E05F15/00
CPCH03K17/955E05F15/0073E05Y2900/50E05F15/46
Inventor K·维斯培特纳N·瑞纳德
Owner MICRO EPSILON MESSTECHNIK GMBH & CO KG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap