Extension/contraction mechanism and mobile body

    公开(公告)号:US11486476B2

    公开(公告)日:2022-11-01

    申请号:US17218862

    申请日:2021-03-31

    发明人: Hirotaka Komura

    摘要: An extension/contraction mechanism in which an extension/contraction part is able to turn is provided. An extension/contraction mechanism according to one aspect of the present disclosure includes a first drive source connected to a sending/pulling part so as to be able to transmit a drive force, and a second drive source connected to the sending/pulling part and a turning part that rotatably supports the sending/pulling part so as to be able to transmit a drive force via a gear group. When a rotational speed transmitted to the sending/pulling part to rotate the sending/pulling part by the first drive source is equal to a rotational speed transmitted to the sending/pulling part to rotate the sending/pulling part by the second drive source, an extension/contraction part turns via the turning part. When the above rotational speeds are different from each other, the extension/contraction part is extended or contracted.

    Control device for vehicle and control method for vehicle

    公开(公告)号:US11365805B2

    公开(公告)日:2022-06-21

    申请号:US16636495

    申请日:2018-07-30

    摘要: A vehicle includes a transmission having a variator and a sub-transmission mechanism, a controller serving as a shift control unit adapted to, as shift of the transmission, shift the sub-transmission mechanism and the variator so that a through speed ratio becomes a target speed ratio, and an engine serving as a torque increasing portion adapted to increase a torque inputted to the transmission in association with the shift of the transmission. The controller has a torque setting unit adapted to make a magnitude of an inclination larger as an increase amount of the engine rotation speed in association with the shift of the transmission is larger.

    Control of a limited slip differential based on a steering angle of a vehicle

    公开(公告)号:US10962097B2

    公开(公告)日:2021-03-30

    申请号:US16648680

    申请日:2018-09-13

    摘要: A limited slip differential (LSD) transfers a torque from an engine to left and right wheels of a vehicle. A current angle of a steering device is determined. Rotational speeds of 5 the left and right driven wheels are also determined. A current wheel slip of is calculated as a difference between the rotational speeds of the left and right wheels. Maximum and minimum allowed wheel slips are calculated as a function of the current steering angle. The LSD is controlled so that the current wheel slip stays in a range between the maximum and minimum allowed wheel slips. To this end, the LSD is loaded if the wheel slip falls outside of the range 0 between the maximum and minimum allowed wheel slips.

    SHIFTING CONTROL METHOD FOR VEHICLE WITH DCT

    公开(公告)号:US20200307601A1

    公开(公告)日:2020-10-01

    申请号:US16531627

    申请日:2019-08-05

    摘要: A shift control method of a vehicle with a dual clutch transmission (DCT) may include: a first preparing step of, by a controller, controlling a torque of an N-th stage clutch to a predetermined minimum torque and increasing a torque of an N−1-th stage clutch to a predetermined standby torque; a first handover step of releasing the torque of the N-th stage clutch and increasing the torque of the N−1-th stage clutch; a gear changing step of releasing an N-th stage gear and then initiating an engagement of an N−2-th stage gear; a synchronization maintaining step of maintaining a synchronized state by adjusting the torque of the N−1-th stage clutch; a second preparing step of increasing the torque of the N−2-th stage clutch to the standby torque; and a second handover step of releasing the torque of the N−1-th clutch and increasing the torque of the N−2-th stage clutch.

    CONTROL DEVICE FOR VEHICLE AND CONTROL METHOD FOR VEHICLE

    公开(公告)号:US20200248802A1

    公开(公告)日:2020-08-06

    申请号:US16636495

    申请日:2018-07-30

    摘要: A vehicle includes a transmission having a variator and a sub-transmission mechanism, a controller serving as a shift control unit adapted to, as shift of the transmission, shift the sub-transmission mechanism and the variator so that a through speed ratio becomes a target speed ratio, and an engine serving as a torque increasing portion adapted to increase a torque inputted to the transmission in association with the shift of the transmission. The controller has a torque setting unit adapted to make a magnitude of an inclination larger as an increase amount of the engine rotation speed in association with the shift of the transmission is larger.

    AUTOMATIC TRANSMISSION CONTROL DEVICE AND CONTROL METHOD

    公开(公告)号:US20180372220A1

    公开(公告)日:2018-12-27

    申请号:US15563028

    申请日:2016-02-22

    摘要: A control device for an automatic transmission includes: a transmission gear ratio control section configured to control the transmission gear ratio so that a rotation speed of the output element rapidly becomes closer to a rotation speed of the internal combustion engine, a first engagement control section configured to perform a first engagement control to be brought to the full engagement state after the rotation of the internal combustion engine is increased in the slip engagement state while a torque transmission capacity of the lockup clutch is increased when the lockup clutch is switched through the slip engagement state to the full engagement state by an ON operation of an accelerator of the vehicle, the transmission gear ratio control being prohibited during the first engagement control by the first engagement control section.