CONTROL DEVICE FOR FOUR-WHEEL DRIVE VEHICLE

PROBLEM TO BE SOLVED: To provide a control device for a four-wheel drive vehicle capable of suppressing switching shock and a feeling of unnatural deceleration generated when an operation of a disconnect mechanism is released in a four-wheel drive vehicle having the disconnect mechanism.SOLUTION: Wh...

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Bibliographische Detailangaben
Hauptverfasser:	IWATSUKI KUNIHIRO, HORIIKE KOHEI
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 COMBUSTION ENGINES CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES CONTROLLING COMBUSTION ENGINES COUPLINGS FOR TRANSMITTING ROTATION ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a control device for a four-wheel drive vehicle capable of suppressing switching shock and a feeling of unnatural deceleration generated when an operation of a disconnect mechanism is released in a four-wheel drive vehicle having the disconnect mechanism.SOLUTION: When the vehicle is switched to four WD travel or two WD travel during 2 WD_d travel, even when an increase of engine torque Te during switching is difficult, an alternative control part 119 for suppressing variation of drive force of a four-wheel drive vehicle 8 is executed, therefore switching shock and a feeling of unnatural deceleration generated during switching to four WD travel or two WD travel can be suppressed. 【課題】ディスコネクト機構を備える４輪駆動車両において、ディスコネクト機構の作動を解除する際に発生する切替ショックや不自然な減速感を抑制できる４輪駆動車両の制御装置を提供する。【解決手段】２ＷＤ_d走行中に、４ＷＤ走行ないし２ＷＤ走行に切り替えるに際して、切替中のエンジントルクＴeの増大が困難な場合であっても、４輪駆動車両８の駆動力の変動を抑制する代替制御部１１９が実行されるので、４ＷＤ走行ないし２ＷＤ走行への切替中に発生する切替ショックや不自然な減速感を抑制することができる。【選択図】図３