[특허]Motor speed-based anti-pinch control apparatus and method with start-up transient detection and compensation

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02P-003/20 H02P-005/00 E05F-015/10
출원번호	US-0159171 (2002-05-31)
발명자 / 주소	Whinnery, Joseph P. Everhart, Jr., Jon C. Caussat, Thierry Wenrick, David M.
출원인 / 주소	Valeo Electrical Systems, Inc.
대리인 / 주소	Lewis J. Gordon
인용정보	피인용 횟수 : 13 인용 특허 : 48

초록 ▼

A control apparatus and method for a panel movable between at least two positions by an electric motor having a rotatable armature. The control generates time periods for the rotation of the armature over a constant angular distance. An average time period is computed over a predetermined number of

A control apparatus and method for a panel movable between at least two positions by an electric motor having a rotatable armature. The control generates time periods for the rotation of the armature over a constant angular distance. An average time period is computed over a predetermined number of time periods and compared with a threshold time period to determine if an obstacle is present in the path of movement of the closure. Transient counts are accumulated for increasing average time periods over a number of time period samples to detect an obstacle. A compensation factor is used to adjust a threshold upon detecting a start-up transient during an initial movement of the motor armature coupled to the panel to delay activation of obstacle detection until the start-up transient diminishes.

대표청구항 ▼

1. A powered movable panel control apparatus for a panel movable between first and second positions by an electric motor having an armature coupled to the panel, the armature including a magnet having a plurality of poles, the control apparatus comprising:means for detecting deceleration of a motor

1. A powered movable panel control apparatus for a panel movable between first and second positions by an electric motor having an armature coupled to the panel, the armature including a magnet having a plurality of poles, the control apparatus comprising:means for detecting deceleration of a motor armature;timer means, responsive to the detecting means, for generating consecutive time periods between a predetermined amount of rotation of the armature over at least a portion of one complete revolution of the armature;means, responsive to the timer means, for calculating an average time period over the predetermined number of time periods;means, responsive to the average time period, for calculating the deceleration of the motor armature between two average time periods of the armature rotation;means for comparing the deceleration with a threshold defining normal motor decelerations resulting from motor armature load variations;means responsive to a comparison exceeding armature load threshold for classifying the deceleration as a relative deceleration with respect to the threshold;means for assigning a weighted value based on the relative deceleration with respect to the threshold;means for accumulating successive weighted values as a total cumulative weighted value;means for comparing the total cumulative value to a defined obstacle detection weighted value;means, responsive to the comparing means, for generating a signal to reverse the direction of movement of the panel when the total cumulative weighted value exceeds the defined obstacle detection weighted value;means for determining when the change in the average time period begins to decrease in magnitude after reaching a peak magnitude; andmeans, responsive to an affirmative output from the determining means, for activating the deceleration comparing means. 2. The system of claim 1 wherein:the average time period is calculated over the passage eight poles past the sensor. 3. The apparatus of claim 1 wherein:the average time period is calculated for eight successive poles of a total of sixteen successive poles passing the sensor. 4. The apparatus of claim 1 wherein the means for determining when the average time period begins to decrease further comprising the steps of:means for measuring the rate of change between successive average time periods;means for storing the largest change in slope between successive average time periods;means for determining if the difference between successive average time periods is greater than an upper threshold;means for storing a compensation value increased by the smallest rate of change between successive average time periods;means for adding a compensation value to the threshold;means for detecting a decrease in the rate of change of the average time period; andmeans responsive to a peak magnitude of the average time period for decreasing the compensation value by the largest rate of change between successive average time periods until the compensation value is zero. 5. A method for controlling a powered panel movable between first and second positions comprising the steps of:detecting deceleration of a motor armature driving the panel generating consecutive time periods for rotation of the armature through a constant angular distance during at least a portion of one complete revolution of the armature;calculating an average time period over the predetermined number of time periods;calculating the deceleration of the motor armature;comparing the deceleration with a threshold defining an obstacle in the path of movement of the panel;reversing the motor when the deceleration is greater than or equal to the threshold;calculating the average time period over a predetermined constant number of successive time periods;determining when the change in average time period begins to decrease in magnitude after reaching a peak magnitude; andin response to an affirmative output from the determining step, activating the deceleration comparing step. 6. The method of claim 5 further comprising the steps of:measuring the rate of change between successive average time periods;storing the largest rate of change between successive average time periods;determining if the difference between successive average time periods is greater than an upper threshold;storing a compensation value increased by the smallest rate of change between successive average time periods;adding a compensation value to the threshold;detecting a decrease in the rate of change of the average time period; andin responsive to the peak detection means for decreasing the compensation value by the largest rate of change between successive average time periods until the compensation value is zero.

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이 특허에 인용된 특허 (48) 인용/피인용 타임라인 분석

Matsumoto Takashi,JPX, Apparatus and method for determining presence or absence of foreign object or the like caught in power-open-and-closure.
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Georgin Elizabeth A. (Nogent-Sur-Marne FRX), Auto reverse power closure system.
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Jackson James A. (Dayton OH) McCann Roy A. (Kettering OH), Auto up window with obstacle detection system.
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Jackson James A. (Dayton OH) McCann Roy A. (Kettering OH), Auto up window with osbtacle detection system.
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Duhame Dean (Roseville MI), Automatic door operator including electronic travel detection.
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Itoh Takeshi (Katsuta JPX) Tsukahara Akihiko (Fujisawa JPX), Automatic opening and closing device for a window.
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Peter Cornelius,DEX ; Knecht Gerhard,DEX, Circuit arrangement and method for operating an adjusting device.
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Goertler Horst (Sachsenheim DEX) Hetzel Friedrich (Mhlacker DEX) Knobloch Uwe (Heilbronn-Sontheim DEX) Mller Hans (Mhlacker-Mhlhausen DEX) Prohaska Hans (Bietigheim-Bissingen DEX) Rachner Horst (Biet, Circuit arrangement for power windows.
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Haderer Guenter,DEX, Device and process for electronic monitoring of an adjustment drive in a vehicle.
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Murray James S. (South Lyon MI), Door opener control with adaptive limits and method therefor.
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Shigematsu Kouichi (Yokohama JPX) Kawanobe Osamu (Yokohama JPX), Drive control device for opening/closing member.
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Heinrich Peter,DEX ; Sesselmann Helmut,DEX, Drive device with an electric motor and a relay switching the motor current.
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Fassel Reinhard (Oberasbach DEX) Meier Werner (Rednitzhembach DEX) Rauch Hans (Frth DEX) Wesemeyer Jrgen (Nuremberg DEX) Raddant Hans-Joachim (Berlin DEX), Electric positioning motor control system, particularly automatic vehicle antenna extension system.
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Berland Kerry (Chicago IL) Kaul Jeff (Arlington Heights IL) Budniak Mitchell (Highland Park IL), Intelligent commutation pulse detection system to control electric D.C. motors used with automobile accessories.
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Dara Paul C. (Warren MI) Mitchell Clair E. (Detroit MI) Rutkowski David J. (Grosse Ile MI), Method and apparatus for detecting stall current in an energized electric motor.
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Hopson Charles ; Davies Timothy ; Kyrtsos Christos ; Tyckowski Joseph ; Bonduel Pascal,FRX ; Breynaert Francois,FRX, Method and system for detecting an object in the path of an automotive window utilizing a piezoelectric sensor.
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Schulter Wolfgang,DEX ; Driendl Dieter,DEX ; Kessler Erwin,DEX ; Kimpfler Stephan,DEX ; Kleiner Kurt,DEX, Method for detecting the position and direction of motion of a moving part mounted on an electric motor.
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Kalb Roland,DEX ; Seeberger Jurgen,DEX, Method for detecting the position, direction of rotation and rotational speed of a rotatably seated part.
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Uebelein Jorg,DEX ; Kalb Roland,DEX ; Seeberger Jurgen,DEX, Method for electronic control and adjustment of the movement of electrically actuated units.
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Pruessel Holger,DEX, Method for monitoring the path of movement of a part.
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Knab Norbert,DEX ; Pruessel Holger,DEX, Method of monitoring movement path of part.
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Iizawa Ryuji (Tokyo JPX) Murakami Koji (Tokyo JPX), Motor control method and apparatus therefor.
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Lieb Hans-Dieter,DEX ; Eberlein Andre,DEX ; Friedrich Michael,DEX ; Seeberger Jurgen,DEX, Motor-driven window lifter with electronic entrapment protection for a motor vehicle.
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Pimley John Thomas ; Hjelmeland Robert W., Obstacle detection method for a motor-driven panel.
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Takahashi Jun,JPX ; Sasaki Akira,JPX, Obstruction detecting method for the use in power window apparatus, and power window apparatus.
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Frey Mark ; Pirrallo Karen M. ; Mubaslat Saed M. ; Wolff Kevin A., Optimum motor speed control system.
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Torii Katsuhiko,JPX ; Yamamura Kengo,JPX ; Yamaura Masafumi,JPX ; Ishikawa Makihiro,JPX ; Sato Yoshihisa,JPX, Position detector and position control method for a moving body.
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Sekiguchi Satoru (Yokohama JPX) Ito Takeshi (Yokohama JPX) Kato Masaru (Yokohama JPX), Power window apparatus and method for controlling the same.
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Terashima Noriaki,JPX ; Sato Yoshihisa,JPX ; Ishikawa Makihiro,JPX, Power window control device.
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Terashima Noriaki,JPX, Power window controller having function to prevent pinching.
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Mizuta Ken (Miyagi JPX), Power window device with safety detector and control override.
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Boisvert Mario ; Catudal Michel, Power window or panel controller.
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Boisvert Mario P. ; Cooper Stephen R. W. ; Washeleski John, Power window or panel controller.
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Washeleski John (Reed City MI) Wheeler Mark R. (Cadillac MI) Boisvert Mario (Reed City MI), Power window or panel controller.
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Driendl Dieter,DEX ; Kessler Erwin,DEX ; Kleiner Kurt,DEX ; Schulter Wolfgang,DEX, Process for controlling closing movement of closing mechanisms with immediate squeeze protection after activation of a mechanism.
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Seeberger Jurgen,DEX ; Ubelein Jorg,DEX, Process for limiting the excess force of an electrically controlled aggregate actuated by an external force when it nears its top or bottom stop positions, in particular for a motor vehicle window li.
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Mizuta Ken (Miyagi JPX), Protection circuit for a power window apparatus.
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Lochmahr Gunnar,DEX ; Heib Johannes,DEX ; Aab Volker,DEX, Variable drive with protection against jamming for movable parts.
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이 특허를 인용한 특허 (13) 인용/피인용 타임라인 분석

Schooler,Paul T., Anti-pinch power window system.
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Yamamoto,Motoya, Control apparatus for open/close member and method for controlling open/close member.
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Ersek, Zoltan; Markus, Janos, Method and apparatus for providing an indication of movement, particularly for recognition of blocking in a locking system.
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Schlesiger, Markus; Kalb, Roland, Method and device for monitoring a drive unit, especially of a window lifter, comprising a rotating drive motor.
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Stolz, Christian, Method for displacing a movable part and sliding roof system for carrying out such a method.
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Kobayashi, Shigeru; Hirai, Kazuyuki, Opening and closing member control system.
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Nakagawa,Satoshi; Maejima,Yoshimitsu; Mochizuki,Yasuyuki; Iwasaki,Katsuyuki; Yamamoto,Susumu, Power window system.
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Linden, H. Paul Tsvi; Bejune, Daniel Carl; Van Wiemeersch, John Robert; Kleve, Robert Bruce; Ricks, John Thomas; Papanikolaou, Kosta; Mass, Noah Barlow; Boran, Lisa Therese; Brombach, Ronald Patrick; Weinfurther, Jim Michael, Powered latch system for vehicle doors and control system therefor.
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Linden, H. Paul Tsvi; Eddy, III, John; Radjewski, Christopher Matthew; Hicks, Spencer; Ricks, John Thomas, Priority driven power side door open/close operations.
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Reed, Eric L.; Wojcik, Karl William, Vehicle door swing governor.
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Bolbocianu, Liviu; Isailovic, Rade; Pribisic, Mirko; Mellary, Thomas; Porat, Alex, Wide activation angle pinch sensor section.
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Bolbocianu, Liviu; Isailovic, Rade; Pribisic, Mirko; Mellary, Thomas; Porat, Alex, Wide activation angle pinch sensor section.
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Bolbocianu, Liviu; Isailovic, Rade, Wide activation angle pinch sensor section and sensor hook-on attachment principle.
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[미국특허] Motor speed-based anti-pinch control apparatus and method with start-up transient detection and compensation 원문보기

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[미국특허] Motor speed-based anti-pinch control apparatus and method with start-up transient detection and compensation 원문보기

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