[특허]Self-energizing vehicle brake system with control arrangement for eliminating brake pad friction fluctuation affects

[미국특허] Self-energizing vehicle brake system with control arrangement for eliminating brake pad friction fluctuation affects 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60T-013/16
출원번호	US-0605964 (1996-02-23)
발명자 / 주소	Akita Tokihiko Frank Andrew A.
출원인 / 주소	IMRA America, Inc.
대리인 / 주소	Burns, Doane, Swecker & Mathis, LLP
인용정보	피인용 횟수 : 10 인용 특허 : 19

초록 ▼

A hydraulic brake system for braking a vehicle wheel includes a hydraulic fluid source, a pump connected to the hydraulic fluid source for pumping hydraulic fluid based on operation of an operating member of the vehicle and a connecting arrangement having one end connected to the pump. A wheel cylinder which is adapted to be mounted adjacent a brake disk of a vehicle wheel includes a brake pad element for being urged against the brake disk upon the application of a hydraulic fluid pressure to impart a braking force to the brake disk. The brake pad element is movable with the brake disk when the brake disk element is urged against the brake disk. In addition, a movable pressure increasing element is positioned adjacent the brake pad element and is movable away from the brake pad element as a result of the brake pad element moving with the brake disk. As a result, an increase in pressure in the wheel cylinder arises in a relatively rapid manner to compensate for compliant characteristics in the braking system and thereby result in a brake system having an improved reaction time. The pump is computer controller so that the hydraulic fluid pressure in the wheel cylinder is maintained at a target level regardless of fluctuations in the brake pad friction coefficient. This eliminates the affects associated with brake pad friction fluctuations to thereby provide a substantially constant brake force.

대표청구항 ▼

[ What is claimed is:] [1.] Hydraulic brake system for a vehicle comprising:a master cylinder for supplying brake pressure through operation of an operating member of the vehicle;a brake caliper mountable adjacent a rotatable brake disk of a vehicle wheel;a pump connected to the master cylinder and the brake caliper for pumping hydraulic fluid from the master cylinder to the brake caliper;a motor connected to the pump;a brake pad mounted on the caliper and movable toward the brake disk as a result of hydraulic fluid pressure to impart a braking force to the brake disk, said brake pad being movable with the brake disk when the brake pad is urged against the brake disk;a pressure increasing element positioned adjacent the brake pad and movable toward and away from the brake pad in response to movement of the brake pad;means for causing the pressure increasing element to move away from the brake pad when the brake pad is urged against and moves with the brake disk to effect a relatively fast increase in pressure downstream of the pump;a controller operatively associated with said motor to control operation of the pump so that the hydraulic fluid pressure in the caliper is maintained substantially at a predetermined target pressure based on brake pad friction.

이 특허에 인용된 특허 (19) 인용/피인용 타임라인 분석

Vennemeyer Alfred C. (Engelwood OH) Gardner Thomas H. (Engelwood OH), Anti-lock braking and traction control system.
상세보기
Matouka Michael F. (Utica MI) Rajput Yudh V. (Xenia OH) Wilkey Paul D. (Vandalia OH) Bright James A. (Dayton OH), Anti-lock braking system.
상세보기
Mikhaeil-Boules Naila (Troy MI) Hammersmith Robert J. (Rochester Hills MI) Leppek Kevin G. (Troy MI) Wilkey Paul D. (Vandalia OH) Gardner Thomas H. (Englewood OH) Ricker Dennis J. (Huber Heights OH) , Anti-lock braking system with electromagnetic brake.
상세보기
Mikhaeil-Boules Naila (Troy) Hammersmith Robert J. (Rochester Hills) Leppek Kevin G. (Troy MI) Wilkey Paul D. (Vandalia OH) Gardner Thomas H. (Englewood OH) Ricker Dennis J. (Huber Heights OH) Kowali, Anti-lock braking system with electromagnetic brake.
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Kashima Mitsuhiro (Gifu JPX) Hanawa Nobumichi (Gifu JPX), Antilock mechanism for motorcycle brakes.
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Rose Howard (Cheshire GB3) McAffer Ian G. C. (Kent GB3), Bottle caps.
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Masaki Shouichi (Chiryu JPX), Brake pressure control system for motor vehicles.
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Shirai Kenji (Susono JPX), Brake shoe and support structure for a disc brake.
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Howell Jerry F. (New Carlisle OH), Brake torque control mechanism.
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Fabris Alroy G. (Mt. Clemens MI) Pirrallo Frank G. (Troy MI) Umasankar Guruswamy (Sterling Heights MI) Shimanovski Bruce S. (Southfield MI) Shrivastava Prakash C. (Troy MI), Cam modulator for anti-lock braking system apparatus and method.
상세보기
Burgdorf Jochen (Offenbach-Rumpenheim DEX), Hydraulic brake system including slip control.
상세보기
Akita Tokihiko (Davis CA) Frank Andrew A. (El Macero CA), Hydraulic brake system with arrangement for improving the brake actuation response time.
상세보기
Otsuki Hiromi (Anjo JPX) Matsuura Ryoichi (Anjo JPX) Fujinami Hiroshi (Anjo JPX) Hori Shinichi (Anjo JPX) Nomura Yoshihisa (Toyota JPX) Oka Hiroyuki (Susono JPX), Hydraulic pressure control device for use in vehicle anti-skid braking system.
상세보기
Ricker Dennis J. (Huber Heights OH) Foster Richard L. (Beavercreek OH), Motor-driven antilock brake pressure modulator having differential motor performance characteristics.
상세보기
Matouka Michael F. (Utica MI) Hammersmith Robert J. (Rochester Hills MI), Pressure actuator.
상세보기
Sauvageot Jean-Claude (Rueil-Malmaison FRX) Merletti Didier (Les-Clayes-Sous-Bois FRX) Louviot Jean-Francois (Sevres FRX), Pressure-generating device for braking circuits of motor vehicles.
상세보기
Burgdore Jochen (Offenbach-Rumpenheim DEX), Slip-controlled hydraulic brake system.
상세보기
Burgdorf Jochen (Offenbach-Rumpenheim DEX), Spot-type disc brake.
상세보기
Akiyoshi Michio (Susono JPX) Hamada Chiaki (Susono JPX), Vehicle braking system for drive wheels, having means for determining a time for reducing braking pressure.
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이 특허를 인용한 특허 (10) 인용/피인용 타임라인 분석

Shimizu Satoshi,JPX, Braking force control apparatus.
상세보기
Shirai Kenji,JPX ; Kurasako Ryoichi,JPX ; Yoshino Yasunori,JPX ; Imai Kazuhiko,JPX, Braking system including motor-driven disc brake equipped with self-servo mechanism.
상세보기
Baumgartner, Johann; Linke, Tobias, Disc brake.
상세보기
Boisseau,Jean Pierre, Disc brake comprising at least one inclinable brake pad.
상세보기
Jelley,Frederick A.; Kay,Joseph A.; Brichta,James R.; O'Reilly,Dennis G.; Keeney,Christopher S.; Kwak,Jaeho; Kramer,Dennis A., Gain stabilizing self-energized brake mechanism.
상세보기
Balogh, Levente; Nemeth, Huba, Parameter estimation method for self-energized brake mechanism.
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Gripemark,Joakim; Kall,Patrik; Stensson,Goran, Positioning of a brake caliper.
상세보기
Baumgartner, Johann; Seidenschwang, Matthias; Bieker, Ernst Dieter; Ganzhorn, Dirk, Self-amplifying disc brake and method for actuating a self-amplifying disc brake.
상세보기
Baumann,Dietmar; Hilzinger,Juergen; Hofmann,Dirk; Vollert,Herbert; Henke,Andreas; Keller,Frieder; Schmidt,Hanniel, Self-boosting friction brake, device for measuring the coefficient of friction, and method for regulating a braking force.
상세보기
Schiffers, Toni; Stammen, Christian, Self-energizing hydraulic brake.
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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] Self-energizing vehicle brake system with control arrangement for eliminating brake pad friction fluctuation affects 원문보기