The invention provides a four-wheel drive vehicle capable of improving NV performance when an engine is in a stopped state through automatic stop control. When the engine is stopped by the automatic stop control (CTsp), the change of the rear-wheel-side distribution rate (Xr), which is achieved by switching the rotation direction of the motor, is prohibited. Therefore, when the background noise is small, the tooth beating sound generated due to the fact that the direction in which the gap between the worm wheel and the worm serving as the pushing mechanism and the parts of the cam mechanism is reduced is reversed can be prevented. Therefore, the NV performance can be improved when the engine is stopped by the automatic stop control (CTsp).
本发明提供一种能在发动机通过自动停止控制而处于停止的状态时提高NV性能的四轮驱动车辆。在发动机通过自动停止控制(CTsp)而处于停止的状态时,通过电动机的旋转方向发生切换实现的后轮侧分配率(Xr)的变更被禁止,因此能防止在背景噪声小时由于构成作为推压机构的蜗轮蜗杆和凸轮机构的零件间的间隙被缩小的方向发生颠倒而产生打齿声。因此,能在发动机通过自动停止控制(CTsp)而处于停止的状态时提高NV性能。
FOUR-WHEEL DRIVE VEHICLE
四轮驱动车辆
2021-12-03
Patent
Elektronische Ressource
Chinesisch
IPC: | 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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen |
Europäisches Patentamt | 2018
|Europäisches Patentamt | 2019
|Europäisches Patentamt | 2018
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