[특허]Multiple threshold wheel slip control apparatus and method

[미국특허] Multiple threshold wheel slip control apparatus and method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-015/20 B60T-008/10
출원번호	US-0605757 (1984-05-01)
발명자 / 주소	Phelps Weldon L. (Dunlap IL) Stahl Alan L. (Peoria IL)
출원인 / 주소	Caterpillar Tractor Co. (Peoria IL 02)
인용정보	피인용 횟수 : 22 인용 특허 : 8

초록 ▼

Anti-wheel spin control systems are useful, for example, in industrial off-road vehicles. It is desirable that such systems operate automatically and not be unduly influenced by false slip signals caused by steering of the vehicle. It is further desirable that the operability of the control be readily determined by the operator. The instant anti-spin control includes an apparatus for producing a slip signal having a value responsive to the difference in rotational velocity between the vehicle wheels, and for producing a test signal. A processor receives the slip signal and test signal, compares the slip signal value with a first predetermined reference value in response to receiving the slip signal in the absence of the test signal, and compares the slip signal value with a second predetermined reference value in response to receiving both the slip signal and the test signal. A brake control signal is produced in response to the slip signal value exceeding the compared reference value, and the braking mechanism corresponding to the slipping wheel is activated. In a second embodiment of the invention, a steer signal is also produced and applied to the processor. The steer signal is utilized to negate the effect of steering the vehicle on the produced slip signal. Thus, the disclosed anti-spin system accounts for false slip indications produced by steering the vehicle, and provides a ready means for the operator to test the operability of the control system.

대표청구항 ▼

A vehicle anti-spin system, comprising: a vehicle power source; a differential mechanism (106) connected to said power source; first and second wheels (100,101) connected to said differential mechanism (106); a respective braking mechanism (112,114) connected to each of said wheels (100,101); a steering mechanism (111) connected to said vehicle; means (115) for producing a slip signal having a value responsive to the difference in rotational velocity between said wheels (100,101), said slip signal producing means (115) including respective wheel speed transducers (116,122) connected to each of said vehicle wheels (100,101); a switch (129) connected to said vehicle and adapted to produce a test signal; processor means (121) for receiving said slip signal and said test signal, comparing said slip signal value with a first predetermined reference value in response to receiving said slip signal in the absence of said test signal, said first predetermined reference value being greater than the largest value of said slip signal produced in response to steering said vehicle, comparing said slip signal value with a second predetermined reference value in response to receiving said slip signal and said test signal, said second predetermined reference value being less than the largest value of said slip signal produced in response to steering said vehicle, and producing a brake control signal in response to said slip signal value exceeding the compared one of said first and second predetermined reference values; and means (131) for receiving said brake control signal and controllably operating said braking mechanisms (112,114) in response to said received signal.

이 특허에 인용된 특허 (8) 인용/피인용 타임라인 분석

Reinecke Erich (Burgdorf DEX), Anti-skid and anti-spin braking system.
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Sato Makoto (Kamifukuoka JPX) Ohmori Taiji (Kawagoe JPX) Tsuchiya Yoshikazu (Kawagoe JPX), Antiskid brake controlling method and apparatus for vehicles.
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Jonner Wolf-Dieter (Sandhausen DT), Circuit arrangement for antilocking control system.
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Devlin ; Thomas A., Digital traction control system.
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Miller Robert G. (East Peoria IL) Phelps Weldon L. (Dunlap IL), Failsafe wheel slip control system and method of operating same.
상세보기
Sato Makoto (Fukuoka JPX) Tsuchiya Yoshikazu (Fujimi JPX) Ohmori Taiji (Kawagoe JPX), Method and apparatus for controlling an anti-skid brake system.
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Miller Robert G. (East Peoria IL) Myers Allen D. (Decatur IL) Phelps Weldon L. (Dunlap IL) Sieving Alfred W. (Venedy IL), Method and apparatus for controlling differentially driven wheel slip.
상세보기
Sato Makoto (Kamifukuoka JPX) Ohmori Taiji (Kawagoe JPX) Tsuchiya Yoshikazu (Kawagoe JPX), Method of preventing skid of wheels of a vehicle.
상세보기

이 특허를 인용한 특허 (22) 인용/피인용 타임라인 분석

Craig,William C; Fitzgibbons,Patrick J, Braking system.
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Giers Bernhard (Rossdorf DEX), Circuit configuration for brake systems with anti-lock control and/or traction slip control.
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Kirstein Gerhard (Augsburg DEX), Control circuit for motor vehicles.
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Kashihara Yuji (Toyota JPX) Tage Yutaka (Toyota JPX) Nakamura Yasunari (Toyota JPX) Ito Hiroshi (Toyota JPX) Takahashi Tokuyuki (Toyota JPX), Device for controlling 4wd vehicle central differential restriction device according to front and rear wheels rotational.
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Fogelberg Mark J. (Muncie IN), Four wheel drive transfer case with clutch mechanism.
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Sommer Hans D. (Graz ATX), Four-wheel drive motor vehicle.
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Elliott, Christopher, Hydraulic motor having controlled output based on machine slippage model.
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Hosseini Javad ; Cobo Michael A. ; Rytter Noel J. ; Verheyen Andrew G., Method and apparatus for controlling differentially driven wheel-slip for an articulated machine.
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Kumpfmueller Hans-Georg (Donaustauf DEX), Method and apparatus for distinguishing skidding wheels of a vehicle from drive train vibrations.
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Fennel Helmut (Bad Soden DEX) Ehmer Norbert (Waechtersbach DEX), Method and circuit configuration for controlling the wheel slip by means of an electronically controllable automotive ve.
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Sakaguchi Masakazu (Wako JPX) Shiraishi Shuji (Wako JPX) Nishihara Takashi (Wako JPX), Method for controlling slip of a driving wheel of a vehicle.
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Thomson, Norval P.; Durst, Gregory; Lehman, Martin; McBride, Shane; Sergison, Daniel P., Motor grader wheel slip control for cut to grade.
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Ballard, Robert C.; Vandervelde, Josiah Levi; Pauley, Jr., William Edward; Tedesco, Joseph Leo, Radial drop winding for open-wound medium voltage dry type transformers with improved support structure.
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Craig,William C.; Fitzgibbons,Patrick J., Redundant braking system.
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Orbach Abraham ; Schubert William L., System for controlling the position of an implement attached to a work vehicle.
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Tate, William J.; Trumper, Jill, Traction control system.
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Sato Makoto (Wako JPX) Shiraishi Shuji (Wako JPX) Muto Tetsuji (Wako JPX), Traction control system for controlling slip of a driving wheel of a vehicle.
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Shiraishi Shuji (Saitama JPX) Nishihara Takashi (Saitama JPX), Traction control system for controlling slip of a driving wheel of a vehicle.
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Mills, Shane F.; Fitzgibbons, Patrick J.; Sternberg, Benjamin A., V-hull geometry for blast mitigation.
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Hommi,Akira, Vehicle control method.
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Hommi,Akira, Vehicle slip control system and method.
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Inagaki Takafumi (Toyota JPX), Wheel slip control system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Multiple threshold wheel slip control apparatus and method 원문보기

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[미국특허] Multiple threshold wheel slip control apparatus and method 원문보기

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