DRIVING FORCE DISTRIBUTION DEVICE

PROBLEM TO BE SOLVED: To provide a driving force distribution device in which vehicle travelling stability has been improved when switching from 4WD to 2WD, even when a temperature sensor becomes ground fault abnormality.SOLUTION: When temperature sensor ground fault abnormality determination means...

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Bibliographische Detailangaben
1. Verfasser:	KATO KIYOSHIGE
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	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 BLASTING BRAKES CLUTCHES COUPLINGS FOR TRANSMITTING ROTATION ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a driving force distribution device in which vehicle travelling stability has been improved when switching from 4WD to 2WD, even when a temperature sensor becomes ground fault abnormality.SOLUTION: When temperature sensor ground fault abnormality determination means determines a temperature sensor to be ground fault abnormality, instead of immediately cutting-off control of a driving force distribution device, control by the temperature sensor is switched to control by temperature estimation means. As a result, control of an operation of torque coupling can be continued by the temperature detected by the temperature estimation means, so that the driving force distribution device can be provided in which vehicle travelling stability has been improved. 【課題】温度センサが地絡異常となった場合でも、４ＷＤから２ＷＤに切り替えた際の車両走行の安定性を向上した駆動力配分装置を提供することにある。【解決手段】温度センサ地絡異常判定手段が、温度センサを地絡異常と判定した場合には、即、駆動力配分装置の制御を遮断するのでなく、温度センサによる制御から、温度推定手段による制御に切り替える。その結果、トルクカップリングの作動の制御を、温度推定手段により検出された温度により継続することができるので、車両走行の安定性を向上した駆動力配分装置を提供することができる。【選択図】図４