PROBLEM TO BE SOLVED: To provide a driving force distribution control device of a four-wheel drive vehicle capable of stabilizing a vehicle behavior at the time of restart from idling stop while satisfying required hydraulic pressure on an automatic transmission side and suppressing deterioration of fuel consumption.SOLUTION: A driving force distribution control device 1 of a four-wheel drive vehicle comprises: acquisition means for acquiring index values, for example, water temperature and oil temperature at engine start, outside temperature, road surface friction coefficient, road surface gradient, vehicle speed, steering angle, or the like, which indicate stability of a vehicle behavior; a transfer clutch 41 for adjusting a driving force transmitted from a non-stage transmission 30 to a driving system on the side of rear wheels 10RL, 10RR; and a transfer clutch control part 74 for controlling an engaging force of the transfer clutch 41 on the basis of an operation state of an AWD vehicle 4 and the index values. The transfer clutch control part 74 brings the transfer clutch 41 into an engaging state when the vehicle behavior is determined to be unstable at the time of restart from idling stop on the basis of the index values.SELECTED DRAWING: Figure 1
【課題】自動変速機側の要求油圧を満足させつつ、かつ、燃費の悪化を抑制しつつ、アイドリングストップからの再始動時に車両挙動をより安定化することが可能な全輪駆動車の駆動力配分制御装置を提供する。【解決手段】全輪駆動車の駆動力配分制御装置1は、車両挙動の安定性を示す指標値(例えば、エンジン始動時水温・油温、外気温、路面摩擦係数、路面勾配、車速、操舵角等)を取得する取得手段と、無段変速機30から後輪10RL,10RR側の駆動系に伝達される駆動力を調節するトランスファクラッチ41と、AWD車4の運転状態及び上記指標値に基づいて、トランスファクラッチ41の締結力を制御するトランスファクラッチ制御部74とを備える。トランスファクラッチ制御部74は、上記指標値に基づいて、アイドリングストップからの再始動時に車両挙動が不安定になると判断される場合には、トランスファクラッチ41を締結状態にする。【選択図】 図1
DRIVING FORCE DISTRIBUTION CONTROL DEVICE OF FOUR-WHEEL DRIVE VEHICLE
全輪駆動車の駆動力配分制御装置
2016-08-12
Patent
Electronic Resource
Japanese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
European Patent Office | 2016
|European Patent Office | 2016
|Driving force distribution control device and four-wheel-drive vehicle
European Patent Office | 2017
|Driving force control device for four-wheel-drive vehicle
European Patent Office | 2016
|DRIVING FORCE CONTROL DEVICE FOR FOUR-WHEEL-DRIVE VEHICLE
European Patent Office | 2016
|