[특허]Method for determining the transmission output torque for an earth moving machine

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-019/00
출원번호	US-0996286 (1997-12-22)
발명자 / 주소	Fonkalsrud, Andrew O. Kough, Bradford A. Reiners, Eric A.
출원인 / 주소	Caterpillar Inc
대리인 / 주소	McPherson, W Bryan
인용정보	피인용 횟수 : 16 인용 특허 : 17

초록 ▼

The present invention is adapted to provide a method for determining the torque of a driveshaft. In the preferred embodiment a drivetrain includes a front and a rear drivetrain. The drivetrain is also connected to an engine, torque converter, front and rear axle and a transmission. In one embodiment

The present invention is adapted to provide a method for determining the torque of a driveshaft. In the preferred embodiment a drivetrain includes a front and a rear drivetrain. The drivetrain is also connected to an engine, torque converter, front and rear axle and a transmission. In one embodiment, the ability to determine the transmission output torque for an earth moving machine includes determining an output torque of the converter and a gear reduction of the engine, and then responsively determining the front and rear driveshaft torque in response to the converter output torque and the engine gear reduction. The driveshaft torque calculations may be performed while the earth moving machine is operating. The resulting front and rear driveshaft torque calculations may be used to determine an axle damage index, or axle life calculations.

대표청구항 ▼

The present invention is adapted to provide a method for determining the torque of a driveshaft. In the preferred embodiment a drivetrain includes a front and a rear drivetrain. The drivetrain is also connected to an engine, torque converter, front and rear axle and a transmission. In one embodiment

The present invention is adapted to provide a method for determining the torque of a driveshaft. In the preferred embodiment a drivetrain includes a front and a rear drivetrain. The drivetrain is also connected to an engine, torque converter, front and rear axle and a transmission. In one embodiment, the ability to determine the transmission output torque for an earth moving machine includes determining an output torque of the converter and a gear reduction of the engine, and then responsively determining the front and rear driveshaft torque in response to the converter output torque and the engine gear reduction. The driveshaft torque calculations may be performed while the earth moving machine is operating. The resulting front and rear driveshaft torque calculations may be used to determine an axle damage index, or axle life calculations. ns, said remote spectrographic instruments being operable to measure reflected intensities of diffusely reflected light from analysis samples of material to be analyzed at narrow wavelength bandwidths distributed throughout a spectral range, and data processing equipment comprising a remote data processor at each remote location and a central data processor at a central web site, said remote data processors being programmed to transmit spectral data files corresponding to the reflected intensity measurements to said central web site, said data processing equipment being programmed to produce standardized data files in which the reflected intensity measurements made by said remote data processors are adjusted to be the same as if they were made by the same master spectrographic instrument, said central data processor storing a library of spectral data files corresponding to reflected intensity measurements made by said master spectrographic instrument on known materials, said central data processor being programmed to compare said standardized data files with the spectral data files of said library to select subsets of the spectral data files of said library wherein the spectral data files of each subset are the most similar to a corresponding standardized data file, said central data processor being programmed to determine from each subset a set of coefficients for an equation relating a measurable characteristic of an analysis sample to the data in the corresponding standardized data file, to determine from said equation said measurable characteristic, and to transmit said measurable characteristic to the corresponding remote location. 6. The system for analyzing materials as recited in claim 5, wherein said central data processor is programmed to determine from each subset a set of coefficients for a plurality of equations relating a plurality of measurable characteristics of an analysis sample to the data in a corresponding standardized data file, said central data processor being further programmed to determine said plurality of measurable characteristics from said plurality of equations. 7. A system for analyzing materials comprising a plurality of remote spectrographic instruments at different remote locations, said remote spectrographic instruments being operable to measure transmitted intensities of light transmitted through analysis samples of material to be analyzed at narrow wavelength bandwidths distributed throughout a spectral range, and data processing equipment comprising a remote data processor at each remote location and a central data processor at a central web site, said remote data processors being programmed to transmit spectral data files corresponding to the transmitted intensity measurements to said central web site, said data processing equipment being programmed to produce standardized data files in which the transmitted intensity measurements made by said remote data processors are adjusted to be the same as if they were made by the same master spectrographic instrument, said central data processor storing a library of spectral data files corresponding to transmitted intensity measurements made by said master spectrographic instrument on known materials, said central data processor being programmed to compare said standardized data files with the spectral data files of said library to determine by a mathematical process sets of coefficients for functions relating measurable characteristics of the materials of analysis samples to the data in corresponding standardized data files, to determine from said functions said measurable characteristics and to transmit said measurable characteristics to the corresponding remote location. 8. The system for analyzing materials as recited in claim 7, wherein said standardized data files comprise absorbance measurements of said analysis samples and wherein said spectral data files of said library comprise absorbance measurements of said known

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이 특허에 인용된 특허 (17) 인용/피인용 타임라인 분석

Creger Todd D., Apparatus and method for calibrating a computer based model of an attribute of a mobile machine.
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Christensen Steven V. ; Fonkalsrud Andrew O., Apparatus for controlling the torque on a power train and method of operating the same.
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Kawamoto Mutumi (Tokyo JPX) Moroto Shuzo (Handa JPX) Yamada Takashi (Tokyo JPX) Yokoyama Shouji (Tokyo JPX), Control apparatus for four-wheel drive vehicle with center differential mechanism.
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Matsushita Shigenori (Hirakata JPX) Yamamoto Shigeru (Hirakata JPX) Zhang Shu H. (Hirakata JPX), Dozing control unit for a bulldozer.
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Ibamoto Masahiko (Katsuta JPX) Sato Kazuhiko (Hitachioota JPX) Okada Mitsuyoshi (Katsuta JPX) Kuroiwa Hiroshi (Hitachi JPX) Minowa Toshimichi (Tokai-mura JPX) Yamaguchi Kazuhiko (Katsuta JPX) Ozaki N, Drive shaft torque controlling apparatus for use in a vehicle having a power transmission mechanism and method therefor.
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Matsuda Toshiro (Sagamihara City JPX), Driving torque distribution control system for 4WD vehicle.
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Evans William C. (Metamora IL) Henderson Daniel E. (Washington IL) Herold Robert A. (Peoria Heights IL) Rytter Noel J. (Peoria IL), Electrohydraulic control device for a drive train of a machine.
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Fonkalsrud Andrew O. (Yorkville IL) Christensen Steven V. (Peoria IL) McGowan Mitchell J. (Groveland IL) Grill Thomas L. (Marseilles IL), Electrohydraulic control device for a drive train of a machine.
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Nakamura Hideo (Yokosuka JPX), Engine control system for an automotive power train including a torque converter.
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Minowa Toshimichi,JPX ; Kurata Kenichirou,JPX ; Ochi Tatsuya,JPX ; Yoshida Yoshiyuki,JPX, Engine powertrain control device and method for a vehicle.
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Birchenough Charles W. (Morton IL) Dietz Hans P. (Champaign IL) Holloway Dwight S. (Chillicothe IL) Rytter Noel J. (Dunlap IL) Scholl Rolland D. (Dunlap IL) Tweed Lorne W. (Peoria IL), Method and system for diagnosing a drivetrain during shifting operations.
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Creger Todd D., Method for determining an estimate of a driveline torque using a computer based model.
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Inoue Noriyuki,JPX ; Akemi Yukiyasu,JPX ; Nishida Minoru,JPX ; Naito Yasuo,JPX ; Doi Hideki,JPX ; Fujimoto Chiaki,JPX, Torque detection apparatus for controlling a vehicle.
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Tezuka Kazunari (Niiza JPX), Torque distribution control system for a four-wheel drive motor vehicle.
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Eto Yoshiyuki (Isehara JPX), Torque split control apparatus.
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Yasuda Sota,JPX, Vehicle drive torque controller.
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Schifferer, Andrew N.; Tobben, Matthew A.; Schweizer, Alan W., Method for derating a power source to limit damage.
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Schifferer, Andrew N., Method for limiting drive train torque.
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Meacham, Walter L., System and method for providing gas turbine engine output torque sensor validation and sensor backup using a speed sensor.
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Owen, Daniel L.; Kusnic, Michael W., System, method and computer program product for a collaborative decision platform.
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Owen, Daniel L.; Kusnic, Michael W., System, method and computer program product for a collaborative decision platform.
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Owen, Daniel L.; Kusnic, Michael W., System, method and computer program product for a collaborative decision platform.
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[미국특허] Method for determining the transmission output torque for an earth moving machine 원문보기

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