公开(公告)号：US09566861B2

公开(公告)日：2017-02-14

申请号：US14408723

申请日：2012-06-22

申请人： Yoshihiro Ikushima ,  Hiroyuki Shimokasa ,  Koichi Hasegawa ,  Kazuhiko Matsumoto ,  Makoto Arimoto

发明人： Yoshihiro Ikushima ,  Hiroyuki Shimokasa ,  Koichi Hasegawa ,  Kazuhiko Matsumoto ,  Makoto Arimoto

IPC分类号： B60K23/08 ,  B60K17/35

CPC分类号： B60K23/0808 ,  B60K17/35

摘要： During turning of a vehicle, a vehicle body deceleration due to a cornering drag is obtained. An electronically controlled coupling is controlled to give, to rear wheels, a pre-torque set to be larger as the vehicle body deceleration is larger. Also, the pre-torque is restricted by an upper limit of the pre-torque that is set to be lower as a differential rotational speed of the front and rear wheels is smaller. By giving the pre-torque to the rear wheels, if a shift condition for a four-wheel drive state is established subsequently, a driving force can be generated in the rear wheels substantially at the same time that a fastening force of the electronically controlled coupling is increased, thereby the shift to the four-wheel drive state is immediately completed. Consequently, delay in response is not generated in the shift.

摘要翻译： 在车辆转动期间，获得由于转弯阻力引起的车体减速。 控制电子控制的联轴器，以使车轮减速度较大时的前转矩设定为较大。 此外，由于前轮和后轮的差速旋转速度较小，预转矩的上限受限于设定为较低的预转矩的上限。 通过将后转矩提供给后轮，如果随后建立四轮驱动状态的换档状态，则可以在后轮中产生驱动力，大致同时电子联轴器的紧固力 增加，从而转移到四轮驱动状态立即完成。 因此，在转移中不产生响应延迟。

公开(公告)号：US20150191082A1

公开(公告)日：2015-07-09

申请号：US14408723

申请日：2012-06-22

申请人： Yoshihiro Ikushima ,  Hiroyuki Shimokasa ,  Koichi Hasegawa ,  Kazuhiko Matsumoto ,  Makoto Arimoto

发明人： Yoshihiro Ikushima ,  Hiroyuki Shimokasa ,  Koichi Hasegawa ,  Kazuhiko Matsumoto ,  Makoto Arimoto

IPC分类号： B60K23/08 ,  B60K17/35

CPC分类号： B60K23/0808 ,  B60K17/35

摘要： During turning of a vehicle, a vehicle body deceleration due to a cornering drag is obtained. An electronically controlled coupling is controlled to give, to rear wheels, a pre-torque set to be larger as the vehicle body deceleration is larger. Also, the pre-torque is restricted by an upper limit of the pre-torque that is set to be lower as a differential rotational speed of the front and rear wheels is smaller. By giving the pre-torque to the rear wheels, if a shift condition for a four-wheel drive state is established subsequently, a driving force can be generated in the rear wheels substantially at the same time that a fastening force of the electronically controlled coupling is increased, thereby the shift to the four-wheel drive state is immediately completed. Consequently, delay in response is not generated in the shift.

摘要翻译： 在车辆转动期间，获得由于转弯阻力引起的车体减速。 控制电子控制的联轴器，以使车轮减速度较大时的前转矩设定为较大。 此外，由于前轮和后轮的差速旋转速度较小，预转矩的上限受限于设定为较低的预转矩的上限。 通过将后转矩提供给后轮，如果随后建立四轮驱动状态的换档状态，则可以在后轮中产生驱动力，大致同时电子联轴器的紧固力 增加，从而转移到四轮驱动状态立即完成。 因此，在转移中不产生响应延迟。