[특허]Method and apparatus for activating a pump of a braking system as a function of the pressure drop

[미국특허] Method and apparatus for activating a pump of a braking system as a function of the pressure drop 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60T-008/42
출원번호	US-0339449 (1999-06-24)
우선권정보	DE-0028552 (1998-06-26)
발명자 / 주소	Juergen Hachtel DE
출원인 / 주소	Robert Bosch GmbH DE
대리인 / 주소	Kenyon & Kenyon
인용정보	피인용 횟수 : 7 인용 특허 : 19

초록 ▼

A method and apparatus for activating a pump of a braking system for delivering a pressure medium, in which the creation of the activation signal, in particular the switch-on signal for the pump, is dependent on at least one condition. Creation of the switch-on signal of the pump is dependent on a pressure gradient variable, in particular on an accumulator pressure gradient. On the one hand this makes possible compensation for disturbances, for example the influence of temperature on the pressure medium, which is expressed as a small pressure gradient; and on the other hand it prevents the pressure from falling greatly below a lower threshold value in the event of a high volume demand request, i.e., prevents a severe pressure drop and thus a large pressure gradient.

대표청구항 ▼

1. A method for creating an activation signal for activating a pump for delivering a pressure medium in a braking system, the activation signal corresponding to a switch-on signal for the pump and being dependent on at least one predefinable condition, the method comprising the steps of:determining a pressure magnitude corresponding to an actual value of a pressure of the pressure medium; ascertaining a pressure gradient variable representing an actual value of a pressure gradient of the pressure medium; and predefining the predefinable condition as a dependency such that the activation signal is created as a function of the ascertained pressure magnitude and the pressure gradient variable.

이 특허에 인용된 특허 (19) 인용/피인용 타임라인 분석

Fuchida Takeshi (Atsugi JPX), Anti-skid brake control system for automotive vehicles.
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Eckert Alfred,DEX, Auxiliary energy brake system of automotive vehicles.
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Schonlau Juergen (Walluf DEX), Brake actuating device for automotive vehicles.
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Sawada Mamoru,JPX, Brake control apparatus for a vehicle.
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Makino Nobuhiko (Kariya JPX) Tamura Kimio (Anjo JPX) Miyazaki Hiroharu (Toyota JPX) Hosoda Tomohiko (Nagoya JPX) Nakagawa Fumio (Susono JPX), Braking system with apparatus for controlling pressure to be accumulated in accumulator for braking motor vehicle.
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Tanaka Hirohisa (Itami JPX) Yoshino Masato (Itami JPX), Control apparatus for detecting malfunctioning of pressure sensors in an automotive fluid pressure circuit.
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Okochi Norihiko (Nagoya JPX) Nomura Yoshihisa (Toyota JPX) Masutomi Susumu (Toyota JPX), Device for detecting and eliminating accumulator fluid leakage through control valve.
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Watanabe Ryochi,JPX, Device for presuming accumulator pressure operative with pressure switches.
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Leiber Heinz (Oberriexingen DEX), Dual-circuit brake apparatus.
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Campau Gregory P. ; Kingston Andrew W.,DEX ; Ferger Robert L.,DEX ; Weigert Thomas,DEX ; Oliveri Salvatore,DEX ; Ganzel Blaise J. ; Luckevich Mark S., Electronic brake management system with manual fail safe.
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Kubota Hitoshi (Minamiashigara JPX) Oda Hideaki (Hamakita JPX), Electronic control system for automotive brake system for controlling braking pressure distribution in front and rear wh.
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Nagai Hiroyuki,JPX ; Saito Tadao,JPX ; Asano Kenji,JPX, Hydraulic braking pressure control system for an automotive vehicle.
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Gronau Ralph,DEX ; Buschmann Gunther,DEX, Hydraulic braking system with electronic braking pressure regulation.
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Leiber Heinz (Oberriexingen DEX) Gerstenmeier Jrgen (Ilsfeld DEX), Monitoring arrangement for anti-skid automotive brake system.
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Nakashima Hiroshi,JPX ; Hamada Toshiaki,JPX ; Terazawa Tadashi,JPX ; Sakakibara Yuichiro,JPX, Pressure accumulating control system.
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Reinartz Hans D. (Frankfurt/Main DEX) Steffes Helmut (Hattersheim DEX) Latka Franz (Niddatal DEX), Pressure supply system especially for brake systems of motor vehicles.
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Kanda Toshiya (Saitama JPX) Miyakawa Yoshitaka (Saitama JPX) Wada Masayoshi (Saitama JPX) Go Kougyoku (Saitama JPX), Problem diagnosis system in pressure device control apparatus.
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Weise Lutz (Misburg DEX) Liermann Peter (Gehrden DEX), Process and device for the regulation of braking pressure in lock-up protection systems.
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Takahashi Kimio,JPX, Vehicle brake control system with intelligent braking functions.
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이 특허를 인용한 특허 (7) 인용/피인용 타임라인 분석

Nitta, Hirofumi; Nishii, Michiharu; Terazawa, Tadashi; Oishi, Masaki; Suzuki, Kenichi, Auxiliary hydraulic pressure source device for a vehicle.
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Sherriff, Philip William, Electro-hydraulic braking systems.
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O'Dea,Kevin Austin; Fulmer,Bryan T.; Lloyd,E. Wayne, Modulator noise reduction via motor control.
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Werner, Stefan; Jackle, Michael; Hopf, Christian, Operation control device for limiting the amount a positive displacement pump over or undershoots a target operating parameter value, pump system and method for operating such.
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Werner, Stefan; Jackle, Michael; Hopf, Christian, Operation control device for limiting the amount a positive displacement pump over-or undershoots a target operating parameter value, pump system and method for operating such.
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Gabor, Daniel A.; Skaff, Ryan, Reduced energy vacuum pump control.
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Gabor, Daniel A.; Skaff, Ryan, Reduced energy vacuum pump control.
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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] Method and apparatus for activating a pump of a braking system as a function of the pressure drop 원문보기