To provide a four-wheel drive vehicle which can avoid that a behavior of the vehicle becomes unstable even if an alarm for warning a deviation from a lane is issued.SOLUTION: A four-wheel drive vehicle 1 which uses either of front wheels and rear wheels as main drive wheels, and the other as sub-drive wheels, and can switch a four-wheel drive state that drive forces are transmitted to the main drive wheels and the sub-drive wheels, and a two-wheel drive state that the drive forces are not transmitted to the sub-drive wheels comprises: a control device 6 which can control the drive forces transmitted to the sub-drive wheels; and a lane deviation alarm device 7 for outputting an alarm signal by detecting the existence of a possibility that the vehicle may deviate from a traveling lane. The control device 6 calculates command values of the drive forces which should be transmitted to the sub-derive wheels according to vehicle information, performs control so that the drive forces corresponding to the command values are transmitted to the sub-drive wheels, and sets the command values to alarm-corresponding torque which can enhance traveling stability more than that in the two-wheel drive state when the alarm signal is outputted.SELECTED DRAWING: Figure 3
【課題】車線逸脱を警告する警報が発せられた場合にも車両の挙動が不安定になることを抑制することが可能な4輪駆動車、及びその制御方法を提供する。【解決手段】前輪及び後輪のうち一方を主駆動輪として他方を副駆動輪とし、主駆動輪及び副駆動輪に駆動力が伝達される4輪駆動状態と副駆動輪に駆動力が伝達されない2輪駆動状態とを切り替え可能な4輪駆動車1は、副駆動輪に伝達される駆動力を制御可能な制御装置6と、走行車線を逸脱する可能性があることを検知して警報信号を出力する車線逸脱警報装置7とを備える。制御装置6は、車両情報に応じて副駆動輪に伝達すべき駆動力の指令値を演算し、この指令値に応じた駆動力が副駆動輪に伝達されるように制御を行うと共に、警報信号が出力されたとき、指令値を2輪駆動状態よりも走行安定性を高めることが可能な警報時対応トルク以上とする。【選択図】図3
FOUR-WHEEL DRIVE VEHICLE AND CONTROL METHOD OF FOUR-WHEEL DRIVE VEHICLE
4輪駆動車及び4輪駆動車の制御方法
2019-06-20
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 / 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 / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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