Method and device for determining the position of a mobile closing part of a vehicle

A technology for closures and automobiles, applied to measuring devices, vehicle components, transportation and packaging, etc., can solve problems such as large system costs

Inactive Publication Date: 2011-01-19
CONTINENTAL AUTOMOTIVE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This in turn requires the use of microcomputers with high computational efficiency, resulting in huge system costs

Method used

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  • Method and device for determining the position of a mobile closing part of a vehicle
  • Method and device for determining the position of a mobile closing part of a vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The window is moved by a DC motor 1 which is switched on and off by a motor controller 9 . Depending on which direction the motor turns, the window is opened or closed.

[0018] To open the window, the motor controller 9 supplies a control signal s4 to the switch S4 and a control signal s1 to the switch S1 . Control signal s4 brings switch S4 to a conductive state. Control signal s1 brings switch S1 to a conductive state. The motor current is thus grounded from a power supply (not shown) via switch S4 , motor 1 , measuring resistor 2 and switch S1 .

[0019] To close the windows, the motor controller 9 supplies a control signal s2 to a switch S2 and a control signal s3 to a switch S3. Control signal s2 brings switch S2 to a conductive state. Control signal s3 brings switch S3 to a conductive state. The current is thus grounded from a power supply (not shown) via switch S2 , measuring resistor 2 , motor 1 and switch S3 .

[0020] figure 1 The upper interface of th...

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PUM

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Abstract

The invention relates to a method and a device for determining the position of a closing part of a vehicle, that can be moved by a direct-current motor. A motor current signal is derived from the direct-current motor and converted into a digital signal by means of an analog-digital converter. The signal is filtered and forwarded to a position counter for counting the current ripple. The scanning frequency of the analog-digital converter is modified according to the rotational speed of the direct-current motor.

Description

technical field [0001] The invention relates to a method and a device for positioning a movable closure of a motor vehicle. Background technique [0002] Movable closures of automobiles, such as sunroofs and window regulators, are equipped with positioning structures. This positioning mechanism is necessary in order for the window or sunroof to stop in a predetermined position. Such a positioning mechanism is also necessary to ensure pinching protection. [0003] In cost-effective systems, positioning is achieved by counting commutator waves (Kommutator-Stromwelligkeit). The counting of the commutator electrical waves thus takes place, ie the electrical waves referred to below as current ripples are extracted by means of band-pass filtering. For this purpose, the current is typically quickly swept by an analog-to-digital converter, for example with 200 μsec, and then digitally filtered. Since the ripple frequency is determined by the motor speed and the latter can vary s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P7/00B60R16/037G01P3/489
CPCH02P2203/09H02P7/0044H02P7/0094G05D3/127H02P7/04
Inventor R·莫拉韦克
Owner CONTINENTAL AUTOMOTIVE GMBH
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