[특허]Anti-skid vehicle braking systems

Anti-skid vehicle braking systems 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-015/20
출원번호	US-0234956 (1981-02-17)
우선권정보	GB-0009186 (1980-03-19)
발명자 / 주소	Harris Alan L. (Coventry GB2) White Alfred K. (Birmingham GB2)
출원인 / 주소	Lucas Industries Limited (Birmingham GB2 03)
인용정보	피인용 횟수 : 23 인용 특허 : 0

초록 ▼

In an anti-skid vehicle braking system an electronic control unit is arranged to control the operation of an anti-skid valve assembly for modulating the fluid pressure applied to a brake actuator. A wheel speed sensor measures the speed of a braked wheel and produces a signal which is converted into a deceleration signal by a conditioning circuit and a differentiator and compared in a comparator with a deceleration threshold value. A pressure sensor provides a pressure signal corresponding to the current brake actuator pressure and a pressure signal conditioning circuit modifies the pressure signal to take account of a load signal produced by a load sensor which measures the loading of the braked wheel. The deceleration threshold value is produced by modulation of a constant threshold value in a threshold generator circuit and a threshold modulator circuit in response to the modified pressure signal. The threshold value is varied in response to the current pressure signal in accordance with a predetermined relationship between the threshold value and the brake actuator pressure, with a higher threshold value being provided for a higher actuator pressure. When the system is applied to the brakes of a low inertia axle, an over-ride circuit is included to provide a signal which over-rides the pressure signal for an initial period when the brake is applied as detected by a brake lamp switch.

대표청구항 ▼

An anti-skid vehicle braking system comprising a brake actuator associated with a vehicle wheel, a modulator assembly for modulating the fluid pressure applied to said brake actuator, a deceleration sensor for measuring the deceleration of said wheel, an electronic control unit for controlling the operation of said modulator assembly in response to signals produced by said deceleration sensor, and a pressure sensor for producing a signal corresponding to the current brake actuator pressure, said control unit incorporating at least part of said deceleration sensor, a threshold generator circuit for generating a deceleration threshold value, a comparator for comparing a wheel deceleration signal produced by said deceleration sensor with said deceleration threshold value and a threshold modulator circuit responsive to said current pressure signal, an input of said threshold generator circuit being connected to an output of said threshold modulator circuit, an output of said threshold generator circuit being connected to a threshold value input of said comparator for providing said comparator with a current threshold value, an input of said threshold modulator being connected to said pressure sensor, said threshold modulator producing at its output a modulation signal for controlling the threshold generator, and the threshold generator being arranged to vary said current threshold value in response to said modulation signal in accordance with a predetermined relationship between the threshold value and the brake actuator pressure, said predetermined relationship providing a higher threshold value for a higher brake actuator pressure.

이 특허를 인용한 특허 (23)

Thomas M. Atkins, Algorithm for preventing wheel speed sneakdown on a low mu surface.
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Hayashi Tsutomu (Tokyo JPX) Kawaguchi Takeshi (Saitama JPX) Tsuchida Tetsuo (Saitama JPX), Anti-lock braking system for the front wheel of a motorcycle.
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Peczkowski Joseph L. (Granger IN) Suh Peter J. (South Bend IN), Anti-skid brake control system.
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Hayashi Tsutomu (Tokyo JPX) Kawaguchi Takeshi (Saitama JPX) Tsuchida Tetsuo (Saitama JPX), Antilock brake device for vehicles.
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Tsuchida Tetsuo (Saitama JPX) Kawaguchi Takeshi (Saitama JPX) Hayashi Tsutomu (Tokyo JPX) Yamanoi Yoshinori (Saitama JPX), Antilock brake device for vehicles.
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Dittner Adam (Hochstadt DEX) Schurr Heinrich (Herzogenaurach DEX) Von Wallenberg Ducius (Erlangen DEX), Antilocking brake system.
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Kita Yasuo (Itami JPX) Moriya Michio (Itami JPX) Yoshida Kenichi (Osaka JPX), Brake controller.
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Hayashi Tsutomu (Tokyo JPX) Kawaguchi Takeshi (Saitama JPX) Tsuchida Tetsuo (Saitama JPX), Brake device for vehicles.
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Takata Koji (Itami JPX) Nishiyama Yukinori (Itami JPX), Brake pressure control system.
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Hayashi Tsutomu (Tokyo JPX) Kawaguchi Takeshi (Saitama JPX) Tsuchida Tetsuo (Saitama JPX), Braking device for vehicle.
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Hayashi Tsutomu (Tokyo JPX) Kawaguchi Takeshi (Saitama JPX) Tsuchida Tetsuo (Saitama JPX), Braking system for vehicles.
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Zaviska Dalibor,DEX ; Volz Peter,DEX, Breaking pressure regulator.
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Evans,Mark; Miyao,Ross; Nunneley,John; Aho,Lee, Linear actuator.
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Ostwald Fritz (Dreieich DEX), Method and device for the control of the braking effect of a brake-slip-controlled brake system.
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Kircher Dieter (Frankfurt am Main DEX) von Gruenber Hubertus (Kronberg DEX) Blum Klaus D. (Kelkheim DEX), Method for the control of a slip-controlled brake system and device for implementing the method.
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Spath, Timothy T; Miller, Thomas S., Method, system and controller for determining whether to brake a trailer.
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Reinecke Erich (Burgdorf DEX), Motor vehicle brake pressure-regulating apparatus.
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Stumpe Werner,DEX ; Schwendemann Bernhard,DEX ; Horn Matthias,DEX, Process and apparatus for controlling the brake system of a vehicle.
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Kumar, Ajith Kuttannair; Shaffer, Glenn Robert, System and method for controlling a braking effort of a braking system in a powered 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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Harris Alan L. (Coventry GB2), Vehicle anti-lock braking system.
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Nakazawa Masao,JPX ; Isobe Osamu,JPX ; Takahashi Sadahiro,JPX ; Notsu Ikurou,JPX, Vehicle braking force controller.
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Nakazawa Masao,JPX ; Takahashi Sadahiro,JPX, Vehicle collision prevention device.
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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

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Anti-skid vehicle braking systems 원문보기

초록 ▼

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Anti-skid vehicle braking systems 원문보기

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