公开(公告)号：US20150111696A1

公开(公告)日：2015-04-23

申请号：US14515786

申请日：2014-10-16

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Yoshinori Maeda ,  Kunihiro Iwatsuki ,  Hiroyuki Ishii

IPC: B60W10/02 ,  B60W10/11

CPC classification number: B60W10/119 ,  B60K23/08 ,  B60K2023/043 ,  B60K2023/085 ,  Y10T477/641

Abstract: In a control system, a transfer is connected to a rotation member between a driving power source and primary driving wheels and distributes dynamic power of the driving power source to secondary drive wheels. A driving power transmission shaft transmits the dynamic power of the driving power source distributed by the transfer to the secondary drive wheels. A connection-disconnection mechanism is disposed between the rotation member and the driving power transmission shaft. First and second clutches are disposed respectively between the driving power transmission shaft and right and left wheels of the secondary drive wheels. The electronic control unit is configured, when switching from a two-wheel-drive running state to a four-wheel-drive running state on the basis of a vehicle running state, to generate a transmission torque in the first clutch or the second clutch after controlling the connection-disconnection mechanism to engage the connection-disconnection mechanism.

Abstract translation: 在控制系统中，传动连接到驱动电源和主驱动轮之间的旋转构件，并且将驱动电源的动力分配给次驱动轮。 驱动动力传递轴将通过传递分配的驱动力源的动力传递给副驱动轮。 连接断开机构设置在旋转构件和驱动动力传递轴之间。 第一离合器和第二离合器分别设置在二次驱动轮的驱动动力传递轴与左右两轮之间。 电子控制单元构成为，基于车辆行驶状态从二轮驱动行驶状态切换到四轮行驶状态，在第一离合器或第二离合器之后，在第一离合器或第二离合器之后产生传递扭矩 控制连接断开机构接合连接断开机构。

公开(公告)号：US09862270B2

公开(公告)日：2018-01-09

申请号：US15312831

申请日：2015-05-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshinori Maeda

IPC: B60K23/04 ,  B60K17/35

CPC classification number: B60K23/04 ,  B60K17/3515 ,  B60K2023/043 ,  B60Y2300/022 ,  B60Y2300/42 ,  B60Y2300/52 ,  Y02T10/52

Abstract: A control device for a four wheel drive vehicle. Differential limitation is applied to both of right and left rear wheels, with 2WD_d state being maintained, by executing two wheel control for engaging or half-engaging a first clutch and a second clutch. As the two wheel drive control is executed, a moment that suppresses the rotation speed difference between the right and left rear wheels acts on the right and left rear wheels even in the 2WD_d state. When the rotation speed difference occurs between the right and left rear wheels, a braking force is allowed to act on the vehicle wheel on the high rotation side and a driving force is allowed to act on the vehicle wheel on the low rotation side through the execution of the two wheel drive control so that a stable moment acts on the vehicle without a transition to a 4WD state.

公开(公告)号：US09440533B2

公开(公告)日：2016-09-13

申请号：US14882796

申请日：2015-10-14

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Yoshinori Maeda ,  Takahiro Yoshimura ,  Ryota Horie ,  Hiroshi Tamura ,  Hideki Tamoto

IPC: B60K23/08 ,  B60K17/354 ,  B60K17/02

CPC classification number: B60K23/08 ,  B60K17/02 ,  B60K17/344 ,  B60K17/35 ,  B60K17/3515 ,  B60K17/354 ,  B60K23/0808 ,  B60K2023/085

Abstract: A control apparatus for a vehicular 4-wheel drive system provided with: primary drive wheels to which a drive force is transmitted from a drive power source; auxiliary drive wheels to which the drive force is selectively transmitted; a first clutch configured to selectively place a first power transmitting path in a power transmitting state and a power cutoff state; and a second clutch disposed in a second power transmitting path to selectively place the second power transmitting path in a power transmitting state and a power cutoff state. The first and second clutches are placed in fully released states to establish a 2-wheel drive mode. The control apparatus includes a first-clutch control portion configured to bring the first clutch into a partially engaged state when a predetermined condition in which the vehicular 4-wheel drive system generates or is considered to generate a noise is satisfied in the 2-wheel drive mode.

Abstract translation: 一种用于车辆四轮驱动系统的控制装置，其具有：从驱动动力源传递驱动力的主驱动轮; 选择性地传递驱动力的辅助驱动轮; 第一离合器，被配置为选择性地将第一动力传递路径放置在动力传递状态和动力切断状态; 以及第二离合器，设置在第二动力传递路径中，以选择性地将所述第二动力传递路径放置在动力传递状态和动力切断状态。 第一和第二离合器被置于完全释放状态以建立二轮驱动模式。 控制装置包括第一离合器控制部，其被构造成当在车轮四轮驱动系统产生或被认为产生噪声的预定条件下使第一离合器处于部分接合状态时，二轮驱动 模式。

公开(公告)号：US09598068B2

公开(公告)日：2017-03-21

申请号：US14515786

申请日：2014-10-16

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Yoshinori Maeda ,  Kunihiro Iwatsuki ,  Hiroyuki Ishii

IPC: B60K17/354 ,  B60K23/08 ,  B60W10/119 ,  B60K23/04

CPC classification number: B60W10/119 ,  B60K23/08 ,  B60K2023/043 ,  B60K2023/085 ,  Y10T477/641

Abstract: In a control system, a transfer is connected to a rotation member between a driving power source and primary driving wheels and distributes dynamic power of the driving power source to secondary drive wheels. A driving power transmission shaft transmits the dynamic power of the driving power source distributed by the transfer to the secondary drive wheels. A connection-disconnection mechanism is disposed between the rotation member and the driving power transmission shaft. First and second clutches are disposed respectively between the driving power transmission shaft and right and left wheels of the secondary drive wheels. The electronic control unit is configured, when switching from a two-wheel-drive running state to a four-wheel-drive running state on the basis of a vehicle running state, to generate a transmission torque in the first clutch or the second clutch after controlling the connection-disconnection mechanism to engage the connection-disconnection mechanism.

公开(公告)号：US09376014B2

公开(公告)日：2016-06-28

申请号：US14505850

申请日：2014-10-03

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Yoshinori Maeda

IPC: B60K23/08 ,  B60K17/344 ,  B60K17/02 ,  B62D11/08 ,  B62D11/00 ,  B62D11/24 ,  B60K23/04

CPC classification number: B60K23/08 ,  B60K17/02 ,  B60K17/344 ,  B60K2023/043 ,  B60K2023/0833 ,  B62D11/003 ,  B62D11/24

Abstract: A control system includes a transfer. The transfer is disposed in a power transmission path between the driving power source and primary driving wheels and distributes dynamic power of the driving power source to the secondary drive wheels. A driving power transmission shaft transmits the dynamic power of the driving power source distributed by the transfer to the secondary drive wheels. A clutch mechanism is disposed in a power transmission path between the transfer and the driving power transmission shaft. A electronic control unit engages at least one of a first and second clutches and then engages the clutch mechanism on the basis of a steering state at the time of switching from a two-wheel-drive traveling state in which the clutch mechanism and the first and second clutches are disengaged to a four-wheel-drive traveling state in which the clutch mechanism and the first and second clutches are engaged.

Abstract translation: 控制系统包括转移。 传动装置设置在驱动动力源和主驱动轮之间的动力传递路径中，并将驱动动力源的动力分配给辅助驱动轮。 驱动动力传递轴将通过传递分配的驱动力源的动力传递给副驱动轮。 离合器机构设置在传递传动轴与驱动传动轴之间的动力传递路径中。 电子控制单元接合第一离合器和第二离合器中的至少一个离合器，然后在离合器机构和第一和第二离合器的两轮驱动行进状态切换时基于转向状态接合离合器机构， 第二离合器被分离到四轮驱动行驶状态，其中离合器机构和第一和第二离合器接合。

公开(公告)号：US20160107523A1

公开(公告)日：2016-04-21

申请号：US14882796

申请日：2015-10-14

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Yoshinori Maeda ,  Takahiro Yoshimura ,  Ryota Horie ,  Hiroshi Tamura ,  Hideki Tamoto

IPC: B60K17/354 ,  B60K17/02

CPC classification number: B60K23/08 ,  B60K17/02 ,  B60K17/344 ,  B60K17/35 ,  B60K17/3515 ,  B60K17/354 ,  B60K23/0808 ,  B60K2023/085

Abstract: A control apparatus for a vehicular 4-wheel drive system provided with: primary drive wheels to which a drive force is transmitted from a drive power source; auxiliary drive wheels to which the drive force is selectively transmitted; a first clutch configured to selectively place a first power transmitting path in a power transmitting state and a power cutoff state; and a second clutch disposed in a second power transmitting path to selectively place the second power transmitting path in a power transmitting state and a power cutoff state. The first and second clutches are placed in fully released states to establish a 2-wheel drive mode. The control apparatus includes a first-clutch control portion configured to bring the first clutch into a partially engaged state when a predetermined condition in which the vehicular 4-wheel drive system generates or is considered to generate a noise is satisfied in the 2-wheel drive mode.

Abstract translation: 一种用于车辆四轮驱动系统的控制装置，其具有：从驱动动力源传递驱动力的主驱动轮; 选择性地传递驱动力的辅助驱动轮; 第一离合器，被配置为选择性地将第一动力传递路径放置在动力传递状态和动力切断状态; 以及第二离合器，设置在第二动力传递路径中，以选择性地将第二动力传递路径放置在动力传递状态和动力切断状态。 第一和第二离合器被置于完全释放状态以建立二轮驱动模式。 控制装置包括第一离合器控制部，其被构造成当在车轮四轮驱动系统产生或被认为产生噪声的预定条件下使第一离合器处于部分接合状态时，二轮驱动 模式。

公开(公告)号：US20150096814A1

公开(公告)日：2015-04-09

申请号：US14505850

申请日：2014-10-03

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Yoshinori Maeda

IPC: B60K23/08 ,  B60K17/344 ,  B60K17/02 ,  B62D11/08

CPC classification number: B60K23/08 ,  B60K17/02 ,  B60K17/344 ,  B60K2023/043 ,  B60K2023/0833 ,  B62D11/003 ,  B62D11/24

Abstract: A control system includes a transfer. The transfer is disposed in a power transmission path between the driving power source and primary driving wheels and distributes dynamic power of the driving power source to the secondary drive wheels. A driving power transmission shaft transmits the dynamic power of the driving power source distributed by the transfer to the secondary drive wheels. A clutch mechanism is disposed in a power transmission path between the transfer and the driving power transmission shaft. A electronic control unit engages at least one of a first and second clutches and then engages the clutch mechanism on the basis of a steering state at the time of switching from a two-wheel-drive traveling state in which the clutch mechanism and the first and second clutches are disengaged to a four-wheel-drive traveling state in which the clutch mechanism and the first and second clutches are engaged.

Abstract translation: 控制系统包括转移。 传动装置设置在驱动动力源和主驱动轮之间的动力传递路径中，并将驱动动力源的动力分配给副驱动轮。 驱动动力传递轴将通过传递分配的驱动力源的动力传递给副驱动轮。 离合器机构设置在传递传动轴与驱动传动轴之间的动力传递路径中。 电子控制单元接合第一离合器和第二离合器中的至少一个离合器，然后在离合器机构和第一和第二离合器的两轮驱动行进状态切换时基于转向状态接合离合器机构， 第二离合器被分离到四轮驱动行驶状态，其中离合器机构和第一和第二离合器接合。