[특허]Driver braking demand indicator apparatus for a heavy vehicle

Driver braking demand indicator apparatus for a heavy vehicle 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-007/70 B60T-017/22 B60T-007/02 B60W-050/14 B60T-007/04 B60T-013/66 B60T-013/68
출원번호	US-0011217 (2013-08-27)
등록번호	US-9061671 (2015-06-23)
발명자 / 주소	Brubaker, Christopher L. Cellura, Daniel J.
출원인 / 주소	Bendix Commercial Vehicle Systems LLC
대리인 / 주소	Greenly, Cheryl L.
인용정보	피인용 횟수 : 0 인용 특허 : 15

초록 ▼

A driver braking demand indicator apparatus comprises a brake valve including (i) a brake valve member movable in response to a driver moving a brake applicator member, and (ii) a delivery pressure line to operate a vehicle service brake circuit. The apparatus also comprises a travel sensor arranged to (i) sense movement of the brake valve member, and (ii) provide a first signal indicative of the extent of travel of the brake valve member when movement of the brake valve member is sensed. The apparatus further comprises a delivery pressure line sensor arranged to (i) sense pressure in the delivery pressure line of the brake valve, and (ii) provide a second signal indicative of the pressure in the delivery pressure line. The apparatus also comprises a controller arranged to process the first and second signals to provide a driver braking demand signal for at least one external device.

대표청구항 ▼

1. A driver braking demand indicator apparatus for a heavy vehicle having a movable brake applicator member and at least one external device which can process a driver braking demand signal, the driver braking demand indicator apparatus comprising: a brake valve including (i) a brake valve member movable in response to a vehicle driver moving the brake applicator member, and(ii) a delivery pressure line to operate a vehicle service brake circuit;a travel sensor arranged to (i) sense movement of the brake valve member of the brake valve, and(ii) provide a first signal indicative of the extent of travel of the brake valve member when movement of the brake valve member is sensed;a delivery pressure line sensor arranged to (i) sense pressure in the delivery pressure line of the brake valve, and(ii) provide a second signal indicative of the pressure in the delivery pressure line; anda controller arranged to process the first and second signals to provide a driver braking demand signal for the at least one external device, whereinthe controller is arranged to calculate the driver braking demand signal based upon the first signal when the extent of brake valve member travel is determined to be at or below a first predetermined threshold value andthe controller is arranged to calculate the driver braking demand signal based upon the second signal when the extent of brake valve member travel is determined to be above the first predetermined threshold value. 2. The driver braking demand indicator apparatus according to claim 1, wherein the controller is arranged to (i) calculate the driver braking demand signal based upon the first signal when the extent or brake valve member travel is determined to be at or below the first predetermined threshold value, and(ii) calculate the driver braking demand signal based upon the second signal when the extent or brake valve member travel is determined to be at or above a second predetermined threshold value. 3. The driver braking demand indicator apparatus according to claim 2, wherein the controller is arranged to calculate the driver braking demand signal based upon either only the first signal or only the second signal when the extent of brake valve member travel is determined to be between the first predetermined threshold value and the second predetermined threshold value. 4. The driver braking demand indicator apparatus according to claim 1, wherein (i) the movable brake applicator member includes a brake pedal, and(ii) the brake valve includes a foot brake valve which is operable in response to application of a vehicle driver's foot to the brake pedal. 5. The driver braking demand indicator apparatus according to claim 1, wherein the controller is dedicated to operation of the brake valve. 6. A driver braking demand indicator apparatus for a heavy vehicle, the driver braking demand indicator apparatus comprising: means for providing (i) a first signal indicative of extent of travel of a brake valve member of a brake valve, and(ii) a second signal indicative of pressure in a delivery pressure line associated with the brake valve; andmeans for providing a driver braking demand signal in response to the first and second signals whereinthe means for providing a driver braking demand signal includes means for calculating the driver braking demand signal based upon only the first signal when brake valve member travel is determined to be at or below a first predetermined threshold value andthe means for providing a driver braking demand signal includes means for calculating the driver braking demand signal based upon only the second signal when brake valve member travel is determined to be above the first predetermined threshold value. 7. The driver braking demand indicator apparatus according to claim 6, wherein the means for providing a driver braking demand signal includes means for (i) calculating the driver braking demand signal based upon only the first signal when the extent of brake valve member travel is determined to be at or below the first predetermined threshold value, and(ii) calculating the driver braking demand signal based upon only the second signal when the extent or brake valve member travel is determined to be at or above a second predetermined threshold value. 8. The driver braking demand indicator apparatus according to claim 7, wherein the controller is arranged to calculate the driver braking demand signal based upon either only the first signal or only the second signal when the extent of brake valve member travel is determined to be between the first predetermined threshold value and the second predetermined threshold value. 9. The driver braking demand indicator apparatus according to claim 6, wherein (i) the movable brake applicator member includes a brake pedal, and(ii) the brake valve includes a foot brake valve which is operable in response to application of a vehicle driver's foot to the brake pedal. 10. A non-transitory storage medium readable by a computer having a memory, the non-transitory storage medium tangibly embodying one or more programs of instructions executable by the computer to perform method steps for processing signals of a brake valve apparatus of a heavy vehicle, the method comprising the steps of: receiving a first signal indicative of extent of travel of a brake valve member of a brake valve;receiving a second signal indicative of pressure in a delivery pressure line associated with the brake valve;producing a driver braking demand signal which varies as a function of only the first signal when the first signal is at or below a first predetermined threshold value; andproducing a driver braking demand signal which varies as a function of only the second signal when the first signal is at or above a second predetermined threshold value. 11. The non-transitory storage medium according to claim 10, wherein the first predetermined threshold value is less than the second predetermined threshold value. 12. The non-transitory storage medium according to claim 11, wherein the method further comprises: producing a driver braking demand signal which varies as a function of either only the first signal or only the second signal when the first signal is between the first predetermined threshold value and the second predetermined threshold value. 13. The non-transitory storage medium according to claim 11, wherein the first predetermined threshold value and the second predetermined threshold value are the same value.

이 특허에 인용된 특허 (15)

Leske, Olaf; Christoffers, Bernd, Actuating device for a brake unit of an electronically controlled vehicle brake system.
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Drexl Hans-Jurgen,DEX ; Ester Barbara,DEX ; Hirschmann Frank,DEX ; Liebler Jurgen,DEX ; Lindner Joachim,DEX ; Otto Thomas,DEX ; Pankoke Jorg,DEX ; Sturmer Winfried,DEX, Actuating installation for pneumatic clutch actuation with overload protection and/or incorrect-operation protection.
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Reinecke Erich (Burgdorf DEX), Automatic load-dependent braking-force control device.
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Reinecke Erich (Burgdorf DEX), Braking power transmitter.
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Eberling, Charles E.; Bennett, Mark A., Dual circuit pneumatic foot valve with electronically controlled proportional modulator (ECPM) and operator input sensing.
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Kingston Andrew W.,DEX ; Oliveri Salvatore,DEX ; Ferger Robert L.,DEX ; Weigert Thomas,DEX, Electrically actuated hydraulic power cylinder.
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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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Campau, Gregory P.; Kingston, Andrew W.; Ferger, Robert L.; Weigert, Thomas; Oliveri, Salvatore; Ganzel, Blaise J.; Luckevich, Mark S., Electronic brake management system with manual fail safe.
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Lubbers Mark D. ; Sivulka Gerald M. ; Fuller Edward N. ; Youtsey Stephen H. ; Barron Richard J., Hydraulic brake booster.
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Feldmann Joachim (Neustadt DEX) Schult Manfred (Garbsen DEX) Warendorf Gerhard (Wedemark DEX), Method of and an apparatus for regulating an electrically regulated brake circuit of a multi-circuit brake mechanism.
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Sulzyc Jerzy (Eppelheim DEX), Operating brake valve for an electrically and pneumatically actuated braking system in a motor vehicle.
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Stumpe Werner (Stuttgart DEX) Schwendemann Bernhard (Schorndorf DEX) Horn Matthias (Hardheim DEX), Process and apparatus for determining the application pressures and characteristic brake values of a vehicle.
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Eckert Horst (Rehburg-Loccum DEX), Process for the adjustment of a braking value to a desired braking value.
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Padula Santo A. (Lake Orion MI) Johnson Duane R. (Wellington OH), Signal generator.
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Padula Santo A. (Lake Orion MI) Johnson Duane R. (Wellington OH), Signal generator.
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Driver braking demand indicator apparatus for a heavy vehicle 원문보기

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