PROBLEM TO BE SOLVED: To provide a drive control device for a four-wheel-drive vehicle which enables evacuation traveling even when power transmission from a driving source to a main driving wheel is obstructed for some cause.SOLUTION: When power transmission is obstructed on a side of a front wheel 12, that is a main driving wheel, with respect to a differential case 14a, power transmission torque via a clutch mechanism comprising a first engagement clutch device 40, a coupling 32, and a second engagement clutch device 56 is increased compared to a situation where the obstruction does not occur. Thus, in a case where the power transmission is obstructed on the side of the front wheel 12 with respect to the differential case 14a, the power transmission torque of the clutch mechanism is increased compared to the situation where the obstruction does not occur. Therefore, even when the power transmission is obstructed on the side of the front wheel 12 with respect to the differential case 14a, a rear wheel 16 that is a sub-driving wheel is driven, and the traveling by the rear wheel 16 is achieved to enable the evacuation traveling of the vehicle.
【課題】何らかの原因で駆動源から主駆動輪への動力伝達に支障が発生した場合でも退避走行が可能となる4輪駆動車両の駆動制御装置を提供する。【解決手段】デファレンシャルケース14aよりも主駆動輪である前輪12側において動力伝達に支障が発生した場合は、その支障が発生しない場合に比較して第1噛合クラッチ装置40、カップリング32、第2噛合クラッチ装置56から構成されるクラッチ機構を介する動力伝達トルクを増加させる。このようにすれば、デファレンシャルケース14aよりも前輪12側において動力伝達に支障が発生した場合は、その支障が発生しない場合に比較して前記クラッチ機構の動力伝達トルクが増加させられるので、デファレンシャルケース14aよりも前輪12側において動力伝達に支障が発生した場合であっても副駆動輪である後輪16が駆動されてその後輪16による走行が可能となり、車両の退避走行が可能となる。【選択図】図1
DRIVE CONTROL DEVICE FOR FOUR-WHEEL-DRIVE VEHICLE
4輪駆動車両の駆動制御装置
2015-06-04
Patent
Elektronische Ressource
Japanisch
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 |
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