[특허]Brake control apparatus and brake control method

[미국특허] Brake control apparatus and brake control method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60T-007/12
출원번호	US-0487102 (2009-06-18)
등록번호	US-8352142 (2013-01-08)
우선권정보	JP-2008-165289 (2008-06-25)
발명자 / 주소	Nishida, Shinichiro
출원인 / 주소	Hitachi, Ltd.
대리인 / 주소	Foley & Lardner LLP
인용정보	피인용 횟수 : 1 인용 특허 : 31

초록 ▼

A brake control apparatus includes: a master cylinder; a wheel cylinder; a hydraulic pressure source; a control valve arranged to increase or reduce the pressure of the wheel cylinder; an outside gate valve arranged to connect or disconnect between the master cylinder and the wheel cylinder; a brake operation sensing section configured to sense a driver's brake operation; and a control unit configured to control the hydraulic pressure source, the control valve, and the outside gate valve, to perform an automatic-brake pressure-increasing control to control the outside gate valve in a valve closing direction, to drive the hydraulic pressure source, and thereby to increase the pressure of the wheel cylinder in accordance with a vehicle condition, and to increase a driving quantity of the hydraulic pressure source when the brake operation is sensed during the automatic-brake pressure-increasing control.

대표청구항 ▼

1. A brake control apparatus comprising: a master cylinder;a wheel cylinder;a hydraulic pressure source arranged to supply a hydraulic fluid sucked from the master cylinder to the wheel cylinder, and to increase a pressure of the wheel cylinder;a control valve arranged to increase or reduce the pressure of the wheel cylinder;an outside gate valve arranged to connect or disconnect between the master cylinder and the wheel cylinder;a brake operation sensing section configured to sense a driver's brake operation; anda control unit configured to control the hydraulic pressure source, the control valve, and the outside gate valve,to perform an automatic-brake pressure-increasing control to control the outside gate valve in a valve closing direction, to drive the hydraulic pressure source, and thereby to increase the pressure of the wheel cylinder in accordance with a vehicle condition,to judge whether or not a pressure of the master cylinder is smaller than the pressure of the wheel cylinder, andto increase a driving quantity of the hydraulic pressure source when a brake operation is sensed during the automatic-brake pressure-increasing control and the pressure of the master cylinder is smaller than the pressure of the wheel cylinder. 2. The brake control apparatus as claimed in claim 1, wherein the control unit is further configured to perform an automatic brake pressure-holding control to control the outside gate valve in the valve closing direction, to stop the hydraulic pressure source, and to hold the pressure of the wheel cylinder; and the control unit is further configured to drive the hydraulic pressure source when the brake operation is sensed during the automatic brake pressure-holding control, and to suck the hydraulic fluid from the master cylinder. 3. The brake control apparatus as claimed in claim 1, wherein the control unit is further configured to perform an automatic brake pressure-reducing control to control the outside gate valve in a valve opening direction, to stop the hydraulic pressure source, and to reduce the pressure of the wheel cylinder; and the control unit is further configured to drive the hydraulic pressure source when the brake operation is sensed during the automatic brake pressure-reducing control, and to suck the hydraulic fluid from the master cylinder. 4. A brake control method comprising: performing an automatic brake control including: a pressure increasing control to suck a hydraulic fluid from a master cylinder at least by a hydraulic pressure source, and to increase a pressure of a wheel cylinder by the hydraulic fluid from the master cylinder in accordance with a vehicle condition;a pressure holding control to hold the increased pressure of the wheel cylinder; anda pressure reducing control to reduce the pressure of the wheel cylinder;sensing a driver's depression of a brake pedal during the automatic brake control;judging whether or not a pressure of the master cylinder is smaller than the pressure of the wheel cylinder; andflowing the hydraulic fluid in the master cylinder to the wheel cylinder when the driver's depression of the brake pedal is sensed during the automatic brake control and the pressure of the master cylinder is smaller than the pressure of the wheel cylinder. 5. The brake control method as claimed in claim 4, wherein the hydraulic pressure source is configured to flow the hydraulic fluid in the master cylinder to the wheel cylinder.

이 특허에 인용된 특허 (31) 인용/피인용 타임라인 분석

Schaust, Karlheinz; Muller, Jens Hauke, Actuator unit for an electronically controlled vehicle brake system.
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Fukamachi Kazuhiro (Oota JPX), Automatic brake system and control method thereof.
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Nakazawa Chiharu,JPX, Automotive brake control system with skid control unit and traction and vehicle dynamics control unit.
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Nakazawa Chiharu,JPX ; Otsuka Yukinori,JPX ; Sudo Yukio,JPX, Automotive brake system.
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Ishida, Satoshi; Oishi, Masaki, Brake apparatus for a vehicle.
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Iizuka, Isamu; Higuma, Motohiro, Brake control system for a motor vehicle.
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Yoshida Hiroaki,JPX, Brake force control apparatus.
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Yoshida Hiroaki,JPX ; Hashimoto Yoshiyuki,JPX, Brake force control apparatus.
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Kusano Akihito,JPX, Brake pressure control device for automotive vehicles.
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Sawada Mamoru,JPX ; Maki Kazuya,JPX ; Niino Hiroaki,JPX ; Tate Masaki,JPX ; Imoto Yuzo,JPX, Brake system.
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Kiesewetter, Wolfgang; Knoff, Bernd; Steiner, Manfred, Brake system for a motor vehicle.
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Ganzel Blaise J., Brake system having a pilot-operated boost valve.
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Wataru Tanaka JP; Toshiaki Hamada JP; Hirofumi Nitta JP, Braking control apparatus for vehicles.
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Yotsuya Kouji,JPX ; Tanaka Hiromi,JPX ; Sugitani Tatsuo,JPX, Braking force control device and braking force control method.
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Steiner Manfred (Winnenden DEX), Braking pressure control device with maximum vehicle deceleration during automatic braking.
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Hiroshi Isono JP; Yasuji Mizutani JP, Braking system wherein brake operating force is made larger than a value corresponding to booster output.
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Ganzel Blaise J., Braking system with remote boost valve.
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Freitag Rainer,DEX ; Hartl Mathias,DEX ; Huber Wilfried,DEX ; Platte Andreas,DEX ; Troester Harry,DEX, Control system for brake power proportioning on a road vehicle.
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Soga Masayuki,JPX ; Ohnuma Yutaka,JPX ; Sakamoto Junichi,JPX, Electrically controlled brake system shut down by turn off of ignition switch with delay time.
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Martin Peter,GBX ; Bridgens Barry John,GBX ; Harris Alan Leslie,GBX ; Holt Michael John,GBX ; Kingston Andrew William,DEX ; Ferger Robert Louis,DEX ; Oliveri Salvatore,DEX, Electro-hydraulic braking systems.
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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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Takeshima Sadao,JPX, Emergency brake system sensing pedal speed and pressure.
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Ishida, Yasuhito; Sakata, Yasunori, Hydraulic brake apparatus for a vehicle.
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Siegel Heinz,DEX ; Pahl Arnold,DEX ; Hummel Rolf,DEX ; Krenz Guenter,DEX ; Mank Erika,DEX ; Stotz Rolf,DEX, Hydraulic brake system for motor vehicles.
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Bartsch Thomas,DEX, Hydraulic brake system with device for active braking.
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Volz Peter,DEX ; Kley Ronald,DEX ; Angenendt Guido,DEX, Hydraulic motor vehicle braking system with wheel slip controller.
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Baechle Martin,DEX, Hydraulic unit.
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Graber Johannes,DEX ; Romano Nino,DEX, Process of operating an anti-lock motor vehicle brake system.
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Takashi Murayama JP; Takeshi Fuchida JP; Daizo Oba JP; Hiroyuki Shinkai JP; Toshiya Morikawa JP, Pump equipment and method for assembling same.
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Tsunehara,Hiroshi, Vehicle brake system.
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Sawada, Masashi; Nohira, Shigemitsu; Fujita, Hiroshi, Vehicular braking force control apparatus.
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이 특허를 인용한 특허 (1) 인용/피인용 타임라인 분석

Eckert, Horst; Gaulke, Arnd, Method and control device for open-loop or closed-loop control of a vehicle brake 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] Brake control apparatus and brake control method 원문보기

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[미국특허] Brake control apparatus and brake control method 원문보기

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