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    BELT-SLIPPAGE DIAGNOSTIC APPARATUS FOR BELT-TYPE CONTINUOUSLY-VARIABLE TRANSMISSION
    1.
    发明申请
    BELT-SLIPPAGE DIAGNOSTIC APPARATUS FOR BELT-TYPE CONTINUOUSLY-VARIABLE TRANSMISSION 有权

    公开(公告)号：US20210215248A1

    公开(公告)日：2021-07-15

    申请号：US17135007

    申请日：2020-12-28

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Kenji MATSUO ,  Yuji HATTORI ,  Akihide ITOH ,  Hideaki BUNAZAWA

    IPC: F16H61/12

    Abstract: A belt-slippage diagnostic apparatus for a continuously-variable transmission that includes a primary pulley, a secondary pulley and a belt looped over the primary and secondary pulleys. The belt-slippage diagnostic apparatus includes a slippage determination portion configured to determine occurrence of slippage of the belt on at least one of the primary and secondary pulleys, when a first-order derivative of a gear ratio, which is a ratio of a rotational speed of the primary pulley to a rotational speed of the secondary pulley, is not smaller than a first threshold value and a second-order derivative of the gear ratio is not smaller than a second threshold value.

    CONTROLLER FOR VEHICLE TRANSMISSION
    3.
    发明申请
    CONTROLLER FOR VEHICLE TRANSMISSION 有权
    车辆传动控制器

    公开(公告)号：US20160025161A1

    公开(公告)日：2016-01-28

    申请号：US14401431

    申请日：2013-04-16

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Kenji MATSUO ,  Hirofumi NAKADA ,  Michio YOSHIDA ,  Daisuke INOUE ,  Atsushi AYABE ,  Motonori KIMURA ,  Shuhei ISHIKAWA ,  Akira HINO ,  Hiroki KONDO

    IPC: F16D48/08 ,  F16D27/14 ,  F16D21/08 ,  F16H37/02

    CPC classification number: F16D48/08 ,  F16D21/08 ,  F16D27/14 ,  F16D48/062 ,  F16D2500/1045 ,  F16D2500/1088 ,  F16D2500/3026 ,  F16D2500/30803 ,  F16D2500/30816 ,  F16D2500/3108 ,  F16D2500/3144 ,  F16D2500/31466 ,  F16D2500/50287 ,  F16D2500/525 ,  F16D2500/7041 ,  F16H37/022 ,  F16H2037/026

    Abstract: In a controller for a vehicle transmission in which a continuously variable transmission mechanism that is able to continuously change its speed ratio and a transmission mechanism having a constant speed ratio are provided in parallel with each other between an input shaft to which torque is transmitted from a driving force source and an output shaft that outputs torque to a drive wheel, the vehicle transmission including a friction engagement mechanism and an intermeshing engagement mechanism, the friction engagement mechanism selectively transmitting torque from the input shaft to the transmission mechanism, the intermeshing engagement mechanism arranged in series with the friction engagement mechanism on a downstream side of the friction engagement mechanism in a torque transmission direction from the input shaft toward the output shaft, the intermeshing engagement mechanism setting the transmission mechanism to a state where torque is transmittable between the input shaft and the output shaft, in changing from a state where both the friction engagement mechanism and the intermeshing engagement mechanism are released and the transmission mechanism is not able to transmit torque to a state where the intermeshing engagement mechanism is engaged and the transmission mechanism is able to transmit torque to the output shaft, a torque capacity of the friction engagement mechanism is configured to be increased to a torque capacity to such extent that the transmission mechanism rotates without a delay of start of engagement of the intermeshing engagement mechanism.

    Abstract translation: 在用于车辆变速器的控制器中，其中能够连续改变其速比的无级变速机构和具有恒定速比的变速机构在输入轴之间并联设置，转矩从 驱动力源和向驱动轮输出扭矩的输出轴，所述车辆变速器包括摩擦接合机构和啮合接合机构，所述摩擦接合机构选择性地将扭矩从所述输入轴传递到所述传动机构，所述啮合接合机构被布置 与摩擦接合机构的下游侧的摩擦接合机构在从输入轴朝向输出轴的转矩传递方向上串联的啮合机构，将传动机构设定为在输入轴和 o 输出轴在从摩擦接合机构和啮合啮合机构解除的状态变化时，变速机构不能将扭矩传递到啮合啮合机构的状态，传动机构能够传递扭矩 对于输出轴，摩擦接合机构的扭矩能力被构造成增加到扭矩能力，使得传动机构在没有相互啮合接合机构的接合开始的延迟的情况下旋转。

    VEHICLE CONTROL SYSTEM AND VEHICLE CONTROL METHOD
    5.
    发明申请
    VEHICLE CONTROL SYSTEM AND VEHICLE CONTROL METHOD 有权
    车辆控制系统和车辆控制方法

    公开(公告)号：US20160121896A1

    公开(公告)日：2016-05-05

    申请号：US14785260

    申请日：2013-04-16

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Kenji MATSUO ,  Yusuke OHGATA ,  Daisuke INOUE ,  Atsushi AYABE ,  Motonori KIMURA ,  Shuhei ISHIKAWA ,  Akira HINO ,  Hiroki KONDO

    IPC: B60W30/188 ,  B60W10/10 ,  B60W10/02

    CPC classification number: B60W30/188 ,  B60W10/02 ,  B60W10/10 ,  F16H37/022 ,  F16H61/66259 ,  F16H2037/026 ,  F16H2061/6603

    Abstract: A vehicle control system and method is applied to a vehicle including: a continuously variable transmission for changing a speed ratio continuously that is disposed between an input shaft and an output shaft; a geared transmission that is disposed parallel to the continuously variable transmission, and that is adapted to establish a speed ratio that cannot be established by the continuously variable transmission; and a friction clutch that is brought into engagement to switch a torque transmission route from a route including the geared transmission to a route including the continuously variable transmission. The vehicle control system is configured to start a speed change operation of the continuously variable transmission before a commencement of clutch-to-clutch shifting between the friction clutches when switching the torque transmission route from the route including the geared transmission to the route including the continuously variable transmission.

    Abstract translation: 一种车辆控制系统和方法应用于车辆，包括：无级变速器，用于连续地改变设置在输入轴和输出轴之间的速比; 与所述无级变速器平行配置的齿轮传动装置，其适于建立由所述无级变速器不能建立的速比; 以及摩擦离合器，其接合以将扭矩传递路线从包括所述齿轮传动的路线切换到包括所述无级变速器的路线。 车辆控制系统被配置为在将转矩传递路径从包括齿轮传动的路线切换到包括连续的路线的路线之前，在摩擦离合器之间的离合器离合器转换开始之前开始无级变速器的变速操作 变速传动。

    Controller for Vehicle Power Transmission System
    8.
    发明申请
    Controller for Vehicle Power Transmission System 有权
    车辆动力传动系统控制器

    公开(公告)号：US20160258531A1

    公开(公告)日：2016-09-08

    申请号：US15056063

    申请日：2016-02-29

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Akihide ITO ,  Daisuke INOUE ,  Mitsuhiro FUKAO ,  Kenji MATSUO ,  Hiroki KONDO ,  Motonori KIMURA ,  Kazuya SAKAMOTO

    IPC: F16H61/12 ,  F16H9/18 ,  F16H61/662 ,  F16H37/06

    CPC classification number: F16H61/12 ,  F16H9/18 ,  F16H37/022 ,  F16H37/06 ,  F16H61/662 ,  F16H2061/1224 ,  F16H2061/1288

    Abstract: When there is a failure in a speed ratio control linear solenoid valve, or the like, a controller for a vehicle power transmission system establishes a state where torque is transmitted via a gear mechanism, and, in this state, determines whether the speed ratio control linear solenoid valve, or the like, has returned to a normal state by comparing a target speed ratio and actual speed ratio of a continuously variable transmission with each other. It is determined whether the speed ratio control linear solenoid valve, or the like, has returned to the normal state by changing the target speed ratio of the belt-type continuously variable transmission and then comparing the target speed ratio with the actual speed ratio. Thus, when the speed ratio control linear solenoid valve, or the like, has returned from a fail-safe state to the normal state, a feeling of strangeness of a driver is suppressed.

    Abstract translation: 当变速比控制线性电磁阀等发生故障时，用于车辆动力传动系统的控制器建立经由齿轮机构传递转矩的状态，并且在该状态下，判定变速比控制 线性电磁阀等已经通过将无级变速器的目标速比和实际速比进行比较而恢复到正常状态。 通过改变带式无级变速器的目标速比，然后将目标速度比与实际速比进行比较来确定速比控制线性电磁阀等是否已经恢复到正常状态。 因此，当速比控制线性电磁阀等从故障安全状态返回到正常状态时，驾驶员的陌生感被抑制。

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