FOUR-WHEELED-DRIVE VEHICLE
PROBLEM TO BE SOLVED: To provide a four-wheeled-drive vehicle that can forecast a change in weather and carry out an optimum four-wheeled driving force allocation control. SOLUTION: When a present atmospheric pressure is lower than a preset depression value (S58: Yes), or when the atmospheric pressu...
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| creator | IMAI FUKAMI |
| description | PROBLEM TO BE SOLVED: To provide a four-wheeled-drive vehicle that can forecast a change in weather and carry out an optimum four-wheeled driving force allocation control. SOLUTION: When a present atmospheric pressure is lower than a preset depression value (S58: Yes), or when the atmospheric pressure keeps decreasing at a rate higher than a certain value for a certain time (S60: Yes), the driving force allocation control is shifted to that of a rainy weather mode (S64) or of snowy weather mode (S66), with an expectation of rain fall or snow. Thus, the four-wheeled-drive vehicle can exert a proper 4WD performance even in a rainy or snowy weather by forecasting a slippery condition of a road surface under a rainy or snowy weather from the condition of the atmospheric pressure and shifting the control of an engaging force of a torque allocation clutch to enhance the traveling performance of the vehicle. COPYRIGHT: (C)2004,JPO |
| format | Patent |
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SOLUTION: When a present atmospheric pressure is lower than a preset depression value (S58: Yes), or when the atmospheric pressure keeps decreasing at a rate higher than a certain value for a certain time (S60: Yes), the driving force allocation control is shifted to that of a rainy weather mode (S64) or of snowy weather mode (S66), with an expectation of rain fall or snow. Thus, the four-wheeled-drive vehicle can exert a proper 4WD performance even in a rainy or snowy weather by forecasting a slippery condition of a road surface under a rainy or snowy weather from the condition of the atmospheric pressure and shifting the control of an engaging force of a torque allocation clutch to enhance the traveling performance of the vehicle. 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SOLUTION: When a present atmospheric pressure is lower than a preset depression value (S58: Yes), or when the atmospheric pressure keeps decreasing at a rate higher than a certain value for a certain time (S60: Yes), the driving force allocation control is shifted to that of a rainy weather mode (S64) or of snowy weather mode (S66), with an expectation of rain fall or snow. Thus, the four-wheeled-drive vehicle can exert a proper 4WD performance even in a rainy or snowy weather by forecasting a slippery condition of a road surface under a rainy or snowy weather from the condition of the atmospheric pressure and shifting the control of an engaging force of a torque allocation clutch to enhance the traveling performance of the vehicle. 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SOLUTION: When a present atmospheric pressure is lower than a preset depression value (S58: Yes), or when the atmospheric pressure keeps decreasing at a rate higher than a certain value for a certain time (S60: Yes), the driving force allocation control is shifted to that of a rainy weather mode (S64) or of snowy weather mode (S66), with an expectation of rain fall or snow. Thus, the four-wheeled-drive vehicle can exert a proper 4WD performance even in a rainy or snowy weather by forecasting a slippery condition of a road surface under a rainy or snowy weather from the condition of the atmospheric pressure and shifting the control of an engaging force of a torque allocation clutch to enhance the traveling performance of the vehicle. COPYRIGHT: (C)2004,JPO</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | esp@cenet |
| subjects | ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES INSTRUMENTATION OR DASHBOARDS FOR VEHICLES PERFORMING OPERATIONS TRANSPORTING VEHICLES IN GENERAL |
| title | FOUR-WHEELED-DRIVE VEHICLE |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-30T08%3A20%3A56IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=IMAI%20FUKAMI&rft.date=2003-11-06&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJP2003312288A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |