公开(公告)号：US20170305428A1

公开(公告)日：2017-10-26

申请号：US15507455

申请日：2015-08-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kenji MATSUO ,  Akira HINO ,  Hiroki KONDO ,  Mitsuhiro FUKAO ,  Daisuke INOUE ,  Atsushi AYABE ,  Hiromitsu NITANI ,  Kazuya SAKAMOTO

IPC: B60W30/18 ,  B60W10/30 ,  B60W10/02 ,  B60W10/06

CPC classification number: B60W30/18018 ,  B60W10/02 ,  B60W10/06 ,  B60W10/30 ,  B60W2510/0208 ,  B60W2510/0638 ,  B60W2510/1005 ,  B60W2510/30 ,  B60W2710/021 ,  B60W2710/06 ,  B60W2710/30 ,  F16D25/061 ,  F16D25/14 ,  F16D2048/0233 ,  F16D2048/0245 ,  F16H61/0031 ,  F16H61/2807 ,  F16H2061/047 ,  Y10T477/638 ,  Y10T477/6433

Abstract: In a control device for a vehicle including: a dog clutch mechanism that is disposed in a power transmission path in which a driving force is transmitted from an engine to a wheel and is operated by a hydraulic actuator; and an electric oil pump that supplies hydraulic pressure to the hydraulic actuator, rotation of the engine is stopped in a state in which the dog clutch mechanism is engaged by the hydraulic pressure supplied from the electric oil pump at a time during an engine stop operation, the rotation of the engine is started in the state in which the dog clutch mechanism is engaged by the hydraulic pressure supplied from the electric oil pump at a time during an engine restart operation, hence occurrence of up-lock of the dog clutch mechanism is prevented.

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。

公开(公告)号：US20160334010A1

公开(公告)日：2016-11-17

申请号：US15105990

申请日：2014-12-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiromitsu NITANI ,  Atsushi AYABE ,  Kazuya SAKAMOTO ,  Hiroki KONDO ,  Mitsuhiro FUKAO ,  Kenji MATSUO

IPC: F16H61/02 ,  B60K17/16 ,  B60K17/08 ,  F16H61/04 ,  F16H37/02

CPC classification number: F16H61/0213 ,  B60K17/08 ,  B60K17/165 ,  F16H37/022 ,  F16H61/04 ,  F16H2037/026 ,  F16H2061/0234 ,  F16H2061/047 ,  F16H2061/0474

Abstract: A first transmission mechanism provided on a first power transmission path and a second transmission mechanism provided on a second power transmission path are provided in parallel with each other between a driving force source and a drive wheel. A first clutch mechanism transmits power or interrupts transmission of power in the first power transmission path. A dog clutch equipped with a synchromesh mechanism transmits power or interrupts transmission of power in the second power transmission path. An electronic control unit is configured to, when changing from the first transmission path to the second transmission path a state where the vehicle is stopping or is stationary and in a state where power of the driving force source is transmitted via the first transmission mechanism, actuate the first clutch mechanism and the second clutch mechanism such that the first clutch mechanism is released and the second clutch mechanism engages.

Abstract translation: 设置在第一动力传递路径上的第一传动机构和设置在第二动力传递路径上的第二传动机构在驱动力源和驱动轮之间彼此平行地设置。 第一离合器机构在第一动力传递路径中传递动力或中断动力传递。 配备有同步机构的狗式离合器在第二动力传递路径中传递动力或中断动力传递。 电子控制单元被配置为当从第一传输路径向第二传输路径改变车辆停止或静止的状态，并且在通过第一传输机构传送驱动力源的功率的状态下，致动 第一离合器机构和第二离合器机构，使得第一离合器机构被释放并且第二离合器机构接合。

公开(公告)号：US20170159729A1

公开(公告)日：2017-06-08

申请号：US15327087

申请日：2015-07-24

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kazuya SAKAMOTO ,  Atsushi AYABE ,  Hiromitsu NITANI ,  Hiroki KONDO ,  Kenji MATSUO ,  Mitsuhiro FUKAO

IPC: F16D48/06 ,  F16H61/30 ,  F16H37/08

CPC classification number: F16D48/062 ,  F16D11/00 ,  F16D48/066 ,  F16D2500/1026 ,  F16D2500/10412 ,  F16D2500/10462 ,  F16D2500/1088 ,  F16D2500/30417 ,  F16D2500/30428 ,  F16D2500/501 ,  F16D2500/50239 ,  F16D2500/50251 ,  F16H37/022 ,  F16H37/0846 ,  F16H61/00 ,  F16H61/30 ,  F16H2037/026 ,  F16H2037/0873 ,  F16H2061/0087

Abstract: A vehicle includes a continuously variable transmission, a gear mechanism and a controller. The continuously variable transmission and the gear mechanism are provided in parallel with each other between an input shaft and an output shaft. The controller is configured to i) when the vehicle travels in a state where both a first clutch and a third clutch provided on the gear mechanism side are released, gradually increase a hydraulic pressure of the first clutch such that the first clutch is engaged, ii) calculate a command hydraulic pressure for setting the first clutch to a pressure regulating state on the basis of a command hydraulic pressure of the first clutch at a timing at which the amount of change in an output-side rotation speed of the first clutch becomes larger than a predetermined value, and iii) control the first clutch by using the calculated command hydraulic pressure.

公开(公告)号：US20170001647A1

公开(公告)日：2017-01-05

申请号：US15107230

申请日：2014-09-16

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kazuya SAKAMOTO ,  Atsushi AYABE ,  Kenji MATSUO ,  Hiroki KONDO ,  Mitsuhiro FUKAO

IPC: B60W30/19 ,  F16H61/662 ,  B60W10/04 ,  B60W10/107 ,  F16D48/06 ,  B60W10/02

CPC classification number: B60W30/19 ,  B60W10/02 ,  B60W10/04 ,  B60W10/107 ,  B60W2510/0208 ,  B60W2710/021 ,  B60W2710/083 ,  B60W2710/1005 ,  F16D11/00 ,  F16D23/02 ,  F16D23/06 ,  F16D48/06 ,  F16D48/066 ,  F16D48/10 ,  F16D2500/1026 ,  F16D2500/10412 ,  F16D2500/10456 ,  F16D2500/10462 ,  F16D2500/106 ,  F16D2500/1088 ,  F16D2500/30412 ,  F16D2500/3166 ,  F16D2500/50607 ,  F16D2500/70404 ,  F16D2500/70406 ,  F16H7/02 ,  F16H37/022 ,  F16H61/662 ,  F16H2061/047 ,  F16H2061/661 ,  F16H2306/00

Abstract: In engaging (connecting) a dog clutch by operating a synchromesh mechanism, when there occurs an uplock at the time when a first pressing force is caused to act on a hub sleeve, tooth tips of spline teeth of the hub sleeve contact with tooth tips of spline teeth of a synchronizer ring, and these spline teeth cannot be engaged. However, when a second pressing force is caused to act on the hub sleeve, the uplock is easy to be released. In addition, when torque from an engine is caused to act on the hub sleeve, a displacement is caused to occur in a rotation direction between the mutually contacting spline teeth. Thus, the uplock is reliably released.

Abstract translation: 在通过操作同步啮合机构来接合（连接）爪形离合器时，当在第一按压力作用在轮毂套上时发生上锁时，轮毂套的花键齿的齿尖与齿尖的齿尖接触 同步环的花键齿，这些花键齿不能接合。 然而，当第二按压力作用在轮毂套上时，上锁容易被释放。 此外，当使来自发动机的扭矩作用在轮毂套上时，在相互接触的花键齿之间沿旋转方向发生位移。 因此，可以可靠地释放上锁。

公开(公告)号：US20160305522A1

公开(公告)日：2016-10-20

申请号：US15130057

申请日：2016-04-15

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Mitsuhiro FUKAO ,  Hiroki KONDO ,  Akira HINO ,  Kazuya SAKAMOTO

IPC: F16H37/08 ,  B60K17/00 ,  B60K17/16 ,  F16H37/02 ,  F16H61/02

CPC classification number: F16H37/0846 ,  B60K17/00 ,  B60K17/16 ,  F16H37/022 ,  F16H61/0204 ,  F16H61/12 ,  F16H61/662 ,  F16H2037/026 ,  F16H2061/1204 ,  F16H2061/1208 ,  F16H2061/1252 ,  F16H2702/06

Abstract: A power transmission system includes a first transmission provided in a first power transmission path, a second transmission provided in a second power transmission path, a first engagement device, a second engagement device, a third engagement device, a fail-safe valve, and an electronic control unit. The third engagement device selectively connects or interrupts one of the first and second power transmission paths. The electronic control unit is configured to, during traveling in a state where the third engagement device is released, output hydraulic pressure commands for simultaneous engagement of the first engagement device and the second engagement device. The electronic control unit is configured to, when it is determined that both the first engagement device and the second engagement device are engaged, prohibit traveling using the one of the first and second power transmission paths which is selectively connected or interrupted by the third engagement device.

Abstract translation: 电力传输系统包括设置在第一电力传输路径中的第一变速器，设置在第二动力传递路径中的第二变速器，第一接合装置，第二接合装置，第三接合装置，故障安全阀和 电子控制单元。 第三接合装置选择性地连接或中断第一和第二电力传输路径之一。 电子控制单元被配置为在第三接合装置被释放的状态下行驶期间输出用于同时接合第一接合装置和第二接合装置的液压指令。 电子控制单元被配置为当确定第一接合装置和第二接合装置接合时，禁止使用由第三接合装置选择性地连接或中断的第一和第二动力传递路径中的一个行驶 。

公开(公告)号：US20170314672A1

公开(公告)日：2017-11-02

申请号：US15526425

申请日：2015-11-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

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

IPC: F16H61/04 ,  F16H61/70 ,  F16H37/08

CPC classification number: F16H61/0403 ,  F16H37/022 ,  F16H37/0846 ,  F16H61/04 ,  F16H61/702 ,  F16H2061/0407 ,  F16H2061/0474 ,  F16H2061/0488 ,  F16H2312/022

Abstract: An engagement operation of a dog clutch is carried out while an engagement operation of a second clutch is being carried out, that is, during a situation that an uplock is hard to occur because of a phase shift generated between meshing counterpart members of the dog clutch. Thus, the dog clutch is easily engaged, and it is possible to facilitate preparation for transmission of power through a first power transmission path. If the dog clutch is not engaged, the second clutch is engaged and a second power transmission path is established, so it is possible to start moving a vehicle by transmitting power through the second power transmission path. Thus, when the dog clutch is in a non-engaged state at the time of an N-to-D shift during a stop of the vehicle, it is possible to ensure the startability of the vehicle.

公开(公告)号：US20170267249A1

公开(公告)日：2017-09-21

申请号：US15447778

申请日：2017-03-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Daisuke INOUE ,  Kazuya SAKAMOTO ,  Atsushi AYABE ,  Satoshi KATO

IPC: B60W30/19 ,  B60W10/107 ,  B60W10/06 ,  F16H61/70

CPC classification number: B60W30/19 ,  B60W10/06 ,  B60W10/107 ,  F16H37/084 ,  F16H59/46 ,  F16H61/0437 ,  F16H61/36 ,  F16H61/688 ,  F16H61/702 ,  F16H2200/2064 ,  F16H2306/44

Abstract: In a power transmission device in which a first power transmission path is formed by engagement of a first clutch and a dog clutch and a second power transmission path is formed by engagement of a second clutch, the first clutch is released from a state where the first clutch and the dog clutch are engaged, and when a front-rear rotation speed difference of the dog clutch becomes equal to or greater than a predetermined value after the start of a clutch-to-clutch gear shift for engaging the second clutch, complete release control for releasing the first clutch to lower the torque capacity of the first clutch is performed.

公开(公告)号：US20160369856A1

公开(公告)日：2016-12-22

申请号：US15179061

申请日：2016-06-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Motonori KIMURA ,  Akihide ITOH ,  Kazuya SAKAMOTO ,  Hiroki KONDO ,  Mitsuhiro FUKAO ,  Kazuya ISHIIZUMI

IPC: F16D48/06 ,  F16H7/00 ,  F16H45/02 ,  F16D48/02 ,  F16D25/12

CPC classification number: F16D48/066 ,  B60W30/18018 ,  B60W2710/023 ,  F16D48/0206 ,  F16D48/062 ,  F16D2500/1026 ,  F16D2500/10412 ,  F16D2500/3024 ,  F16D2500/30806 ,  F16D2500/3108 ,  F16D2500/3111 ,  F16D2500/70406

Abstract: A control apparatus for a power transmission system is provided. The control apparatus includes an electronic control unit. The electronic control unit is configured to, when a discharge flow rate of a mechanical oil pump is smaller than a predetermined flow rate and an electric oil pump is being driven while a vehicle is traveling, determine whether a decrease in the operating hydraulic pressure has occurred. The electronic control unit is configured to, when a first engagement device is controlled from a released state toward an engaged state, control a first control pressure such that the first control pressure in a case where a decrease in a operating hydraulic pressure has occurred is lower than the first control pressure in a case where a decrease in the operating hydraulic pressure does not occur.

Abstract translation: 提供了一种用于输电系统的控制装置。 控制装置包括电子控制单元。 电子控制单元构成为，在车辆行驶时机械油泵的排出流量小于预定流量并且电动油泵正在被驱动时，判定是否发生了运转液压的降低 。 电子控制单元被配置为当第一接合装置从释放状态被控制到接合状态时，控制第一控制压力，使得在已经发生操作液压的下降的情况下的第一控制压力较低 在不发生操作液压降低的情况下的第一控制压力。