[특허]Method and system for improving vehicle braking

[미국특허] Method and system for improving vehicle braking 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60K-006/12
출원번호	US-0912337 (2010-10-26)
등록번호	US-8752475 (2014-06-17)
발명자 / 주소	Cunningham, Ralph Wayne Pursifull, Ross Dykstra Beshay, Mansour
출원인 / 주소	Ford Global Technologies, LLC
대리인 / 주소	Voutyras, Julia
인용정보	피인용 횟수 : 1 인용 특허 : 26

초록 ▼

An engine with a positive pressure assisted brake booster is disclosed. In one example, an operator applying vehicle brakes is assisted by positive pressure provided by a compressor coupled to an engine of the vehicle. Operation of the vehicle brakes may be improved especially when engine vacuum is

대표청구항 ▼

1. A method for improving brake operation of a vehicle, comprising: generating an absolute positive air pressure referenced to atmospheric pressure that is not altered due to changes in altitude;applying the absolute positive air pressure to a first chamber of a brake booster;actuating a vehicle brake via a brake booster diaphragm, the brake booster diaphragm exposed to the first chamber;evacuating the first chamber to atmosphere until pressure in the first chamber reaches atmospheric pressure in response to releasing a brake pedal; andevacuating the first chamber to a second chamber of the brake booster in response to pressure in the first chamber reaching atmospheric pressure. 2. The method of claim 1, where the absolute positive air pressure is generated via a compressor, and further comprising generating a vacuum referenced to atmospheric pressure and applying the vacuum to the second chamber of the brake booster. 3. The method of claim 2, where the vacuum is generated via an engine, and where air is supplied to the brake booster at atmospheric pressure at low engine loads. 4. The method of claim 2, where the absolute positive air pressure is regulated to a pressure via a pressure regulator. 5. The method of claim 4, where the pressure provides a constant pressure differential between the pressure regulator and a vacuum reservoir. 6. The method of claim 2, where the second chamber and the first chamber are partitioned by the brake booster diaphragm, and where the brake booster diaphragm is in communication with a hydraulic master cylinder. 7. The method of claim 1, where the brake pedal is released by an operator. 8. A method for improving brake operation of a vehicle, comprising: operating an engine having a turbocharger;regulating air output from the turbocharger to a positive pressure relative to atmospheric pressure via the turbocharger at higher engine loads; andapplying at least a portion of the air to a first chamber of a brake boost actuator at lower engine loads when turbocharger output is at atmospheric pressure, where the at least a portion of the air is routed to a boost reservoir, and where the boost reservoir is periodically exposed to vacuum. 9. The method of claim 8, where the air output from the turbocharger is regulated to an absolute positive air pressure that is not altered due to changes in altitude. 10. The method of claim 8, further comprising evacuating the first chamber of the brake boost actuator to atmosphere until pressure in the first chamber of the brake boost actuator reaches atmospheric pressure in response to releasing a brake pedal; and evacuating the first chamber of the brake boost actuator to a second chamber of the brake boost actuator in response to pressure in the first chamber reaching atmospheric pressure. 11. The method of claim 8, further comprising generating a vacuum relative to atmospheric pressure within an intake manifold of the engine, and applying the vacuum to a second chamber of the brake boost actuator. 12. The method of claim 8, where the air output from the turbocharger is held within the brake boost actuator via a flexible seal. 13. The method of claim 8, where the air output from the turbocharger is stored in a boost reservoir after exiting the turbocharger and before entering the brake boost actuator. 14. The method of claim 8, where the air output from the turbocharger is removed from an air intake system of the engine at a location upstream of a throttle, and where the air is returned to an air intake system at a location downstream of the throttle. 15. A system for improving brake operation, comprising: an engine having a turbocharger;a brake booster;a boost reservoir;a first conduit configured to supply positively pressurized air from a boost chamber located upstream of a throttle to the brake booster; anda controller including instructions for controlling an output of a regulator to provide an absolute positive air pressure referenced to atmospheric pressure that is not altered due to changes in altitude. 16. The system of claim 15, further comprising an intake manifold of the engine located in an air intake system at a location downstream of the turbocharger, the system further comprising a second conduit configured to supply vacuum to the brake booster. 17. The system of claim 15, where the boost reservoir stores the positively pressurized air and where the regulator controls a pressure of the positively pressurized air. 18. The system of claim 17, further comprising additional controller instructions for evacuatinig the positively pressurized air from the brake booster. 19. The system of claim 15, further comprising additional instructions for exposing the boost reservoir to vacuum. 20. The system of claim 15, further comprising additional instructions for supplying air to the brake booster at atmospheric pressure at low engine loads.

이 특허에 인용된 특허 (26) 인용/피인용 타임라인 분석

Lorenz Jrgen (Nuremberg DEX) Ensner Jrgen (Nuremberg DEX) D\Alfonso Nunzio (Nuremberg DEX), Acceleration aid for an internal combustion engine having an exhaust-driven turbocharger.
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Iimura,Yoshio; Orikasa,Hiroaki; Sunaoshi,Mitsuhiro; Segawa,Kazuhiro, Air compressor and control method therefor.
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Lutteke Harald,DEX ; Bohm Peter,DEX ; Drott Peter,DEX ; Feigel Hans-Jorg,DEX ; Kahrs Manfred,DEX ; Rieth Peter,DEX, Brake system for automotive vehicles with pneumatic brake power booster.
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Zuhn Arthur A. (E. Peoria IL), Controller for turbocharger system for internal combustion engines.
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Piriou,Christian; Lejeune,Marc, Device and process for overfeeding compressed gas to an intake pipe of a turbocharged engine.
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Walker,Alastair D; Denman,Paul A, Diffuser arrangement.
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Henderson Gregory H. (Columbus IN) Sudhakar Van (Columbus IN), Ejector pump enhanced high pressure EGR system.
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Larson, Gerald L.; O'Malley, Paul W., Engine based kinetic energy recovery system for vehicles.
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Schegk Claus-Detlef (Klingnau CHX), Exhaust gas turbocharger and method of operation.
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Sumser, Siegfried; Schunk, Aloysius; Fledersbacher, Peter, Exhaust-gas turbocharger for an internal combustion engine, and method for operating a turbocharged internal combustion engine.
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Easton, Mark Richard, Extreme charger with air amplifier.
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Okimoto Haruo (Hiroshima JPX) Mithui Syuzi (Hiroshima JPX) Ebino Hiroshi (Hiroshima JPX), Fuel injection control in supercharged engine.
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Abo,Matsuharu; Tanabe,Yoshiyuki; Fujii,Hiroshi; Onishi,Koji; Ishii,Toshio; Fujieda,Mamoru, Internal combustion engine and fuel injection control device therefor.
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Gaertner Uwe,DEX ; Hoffman Michael,DEX, Internal combustion engine with a separately operable additional valve in the cylinder head and method of operating same.
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Bristol Robert D. (P.O. Box 377 Beulah MI 49617), Internal combustion engine with free floating auxiliary piston.
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Doerr,Wolfgang; Gerum,Eduard, Method of generating compressed air, and compressor arrangement for implementing the method.
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Schmidt Zelimir, Nozzle-venturi gas lift flow control device and method for improving production rate, lift efficiency, and stability of.
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Osaka Nobumaro (Yamanashi-ken JPX) Amari Yasuhiko (Yamanashi-ken JPX) Enomoto Takanobu (Yamanashi-ken JPX), Pneumatic booster.
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Day Edward G. (Rochester NY), Power brake system differential air pressure control valve assembly.
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Oded E. Sturman ; Richard J. Dunn, Power module and methods of operation.
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Paradise,Bruce, Pressure-based fuel metering unit.
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Lawson ; Jr. Thomas Towles, Turbocharged engine system with recirculation and supplemental air supply.
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Perr Julius P. (Columbus IN) Muntean George L. (Columbus IN), Turbocharger assembly.
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이 특허를 인용한 특허 (1) 인용/피인용 타임라인 분석

Kang, Min Jae; Lee, Sung Woo; Choi, Hoon, Method and system for controlling electrical vacuum pump.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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[미국특허] Method and system for improving vehicle braking 원문보기

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[미국특허] Method and system for improving vehicle braking 원문보기

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이 특허에 인용된 특허 (26) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (1) 인용/피인용 타임라인 분석

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