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21 条记录 (耗时 0.039 秒)

    Speed ratio control device and control method for automatic transmission
    1.
    发明授权
    Speed ratio control device and control method for automatic transmission 失效
    速比控制装置及自动变速箱控制方法

    公开(公告)号：US6157884A

    公开(公告)日：2000-12-05

    申请号：US401962

    申请日：1999-09-22

    申请人： Yasushi Narita ,  Satoshi Takizawa ,  Yuusuke Minagawa ,  Masato Koga ,  Mitsuru Watanabe

    发明人： Yasushi Narita ,  Satoshi Takizawa ,  Yuusuke Minagawa ,  Masato Koga ,  Mitsuru Watanabe

    IPC分类号： F16H61/662 ,  F16H35/00

    CPC分类号： F16H61/6648 ,  Y10T477/60 ,  Y10T477/6242 ,  Y10T477/62429 ,  Y10T477/636 ,  Y10T477/6424

    摘要： A controller (61) calculates a transient target speed ratio based on a final speed ratio set according to a vehicle running condition and second order delay time constant gains (75, S99), and control a speed ratio of a continuously variable transmission to the transient target speed ratio via an actuator (4) (87, S103). The controller (61) also calculates the deviation between the final target speed ratio and transient target speed ratio (74, S95), and determines the second order delay time constant gains based on the deviation (74, S98). Preferably, the gains are determined so that the response rate is slower the larger the deviation (74, S134, S135, S136, S137, S139, S140, S141).

    摘要翻译： 控制器（61）基于根据车辆行驶状态和二阶延迟时间常数增益设定的最终速比（75，S99）来计算暂时目标速度比，并且将无级变速器的变速比控制到瞬变 目标速比通过致动器（4）（87，S103）。 控制器（61）还计算最终目标速度比和瞬时目标速度比（74，S95）之间的偏差，并且基于偏差确定二阶延迟时间常数增益（74，S98）。 优选地，增益被确定为使得响应速率越慢偏差越大（74，S134，S135，S136，S137，S139，S140，S141）。

    Speed ratio controller and control method of toroidal continuously variable transmission
    2.
    发明授权
    Speed ratio controller and control method of toroidal continuously variable transmission 有权
    变速比控制器和环形无级变速器的控制方法

    公开(公告)号：US06183390B2

    公开(公告)日：2001-02-06

    申请号：US09352758

    申请日：1999-07-14

    申请人： Masato Koga ,  Satoshi Takizawa ,  Yasushi Narita ,  Yuusuke Minagawa ,  Mitsuru Watanabe

    发明人： Masato Koga ,  Satoshi Takizawa ,  Yasushi Narita ,  Yuusuke Minagawa ,  Mitsuru Watanabe

    IPC分类号： F16H6100

    CPC分类号： F16H61/6648 ,  F16H59/14 ,  F16H59/70 ,  F16H2059/006 ,  F16H2061/6616 ,  Y10T477/619 ,  Y10T477/6242

    摘要： In a toroidal continuously variable transmission for a vehicle, either of an automatic operation mode and a manual operation mode is selected by a driver via a selector lever (59). A speed ratio grade in the manual operation mode is also designated via the selector lever (59) by the driver. A controller (61) is programmed to control a speed ratio of the transmission to a target speed ratio corresponding to the designated speed ratio grade. The controller (61) is further programmed to prevent the speed ratio from varying after an input torque to the transmission has changed. This control may be realized by setting different target speed ratios for an identical speed ratio grade according to the input torque of the transmission.

    摘要翻译： 在用于车辆的环形无级变速器中，驾驶员通过选档杆（59）选择自动操作模式和手动操作模式中的任一种。 手动操作模式下的速比等级也由驾驶员通过选档杆（59）指定。 控制器（61）被编程为将变速器的速比控制到对应于指定速比等级的目标速度比。 控制器（61）进一步被编程为在变速器的输入转矩变化之后防止变速比变化。 该控制可以通过根据变速器的输入转矩为相同的速比等级设定不同的目标速度比来实现。

    Speed controller and control methods of continuously variable transmission
    3.
    发明授权
    Speed controller and control methods of continuously variable transmission 失效
    无级变速器的速度控制器和控制方法

    公开(公告)号：US06174261B1

    公开(公告)日：2001-01-16

    申请号：US09330145

    申请日：1999-06-11

    申请人： Mitsuru Watanabe ,  Satoshi Takizawa ,  Yasushi Narita ,  Yuusuke Minagawa ,  Masato Koga

    发明人： Mitsuru Watanabe ,  Satoshi Takizawa ,  Yasushi Narita ,  Yuusuke Minagawa ,  Masato Koga

    IPC分类号： B60K4114

    CPC分类号： F16H61/66254 ,  Y10T477/623 ,  Y10T477/6242

    摘要： A first final target input rotation speed is calculated according to a throttle opening and a vehicle speed, and a second final target input rotation speed is calculated by applying an upper limit to the first final target input rotation speed. The upper limit is determined so as to reduce noise outside the vehicle. A second final target speed ratio is set from the vehicle speed and second final target input rotation speed, and a time constant of a speed ratio variation is determined from the vehicle speed and first final target input rotation speed. By transiently controlling the speed ratio variation using the second final target speed ratio and time constant thus obtained, an excessive increase of engine rotation speed is prevented while retaining a desirable feeling of acceleration when there is a kickdown operation of the vehicle.

    摘要翻译： 根据节气门开度和车速计算第一最终目标输入转速，并且通过对第一最终目标输入转速施加上限来计算第二最终目标输入转速。 确定上限以便减少车辆外部的噪音。 根据车速和第二最终目标输入转速设定第二最终目标速度比，并且根据车速和第一最终目标输入转速确定速比变化的时间常数。 通过使用由此获得的第二最终目标速度比和时间常数来暂时控制速比变化，当存在车辆的降档操作时，在保持期望的加速感的同时防止发动机转速的过度增加。

    Hydraulic pressure control for reducing engagement shock of automatic transmission
    6.
    发明授权
    Hydraulic pressure control for reducing engagement shock of automatic transmission 失效
    液压控制，减少自动变速器的接触冲击

    公开(公告)号：US4845618A

    公开(公告)日：1989-07-04

    申请号：US71387

    申请日：1987-07-09

    申请人： Yasushi Narita

    发明人： Yasushi Narita

    IPC分类号： F16H61/04 ,  F16H61/08 ,  F16H61/10 ,  F16H61/14

    CPC分类号： F16H61/143 ,  Y10T477/69383 ,  Y10T477/69387

    摘要： A hydraulic pressure control system for reducing engagement shock of a frictional element when the transmission effects a change in gear position comprises an electromagnetically operated valve for generating a hydraulic pressure supplied to the frictional element and a control unit. In the control unit, the amount of torque transmitted via a torque converter to a transmission input shaft is determined through operations based on output signals of various sensors and data stored in a memory, and a target value of hydraulic pressure is determined in response to the amount of torque determined. The control unit supplies an output signal to the valve to cause the valve to adjust the level of the hydraulic pressure generated thereby to the target value.

    摘要翻译： 一种液压控制系统，用于减小当变速器发生变速时的摩擦元件的接合冲击，包括用于产生供应到摩擦元件的液压的电磁操作阀和控制单元。 在控制单元中，经由变矩器传递到变速器输入轴的扭矩量通过基于各种传感器的输出信号和存储在存储器中的数据的操作来确定，并且液压的目标值响应于 确定扭矩量。 控制单元向阀提供输出信号以使阀将由此产生的液压的水平调节到目标值。

    Infinite speed ratio continuously variable transmission
    7.
    发明授权
    Infinite speed ratio continuously variable transmission 有权
    无级变速传动无级变速

    公开(公告)号：US06569051B2

    公开(公告)日：2003-05-27

    申请号：US09754244

    申请日：2001-01-05

    申请人： Hiroyuki Hirano ,  Kazuhiro Yamada ,  Yasushi Narita ,  Tatsuya Nagato ,  Hiromasa Sakai ,  Motoharu Nishio ,  Hiroaki Kuramoto ,  Hirofumi Shimizu ,  Masaki Nakano ,  Eio Sagara ,  Masayoshi Kimura

    发明人： Hiroyuki Hirano ,  Kazuhiro Yamada ,  Yasushi Narita ,  Tatsuya Nagato ,  Hiromasa Sakai ,  Motoharu Nishio ,  Hiroaki Kuramoto ,  Hirofumi Shimizu ,  Masaki Nakano ,  Eio Sagara ,  Masayoshi Kimura

    IPC分类号： F16H6104

    CPC分类号： F16H61/6648 ,  F16H37/086 ,  F16H61/21 ,  F16H2037/0886 ,  Y10T477/619

    摘要： An infinite Speed ratio continuously variable transmission comprises a power recirculation mode clutch (9) and direct mode clutch (10). At least one of the power recirculation mode clutch (9) and direct mode clutch (10) comprises an electromagnetic two-way clutch. The electromagnetic two-way clutch maintains the engaged state during excitation and can transmit drive force from both the drive side and non-drive side. On the other hand, when there is a change-over from the energized state to the non-energized state, a one-way clutch state is obtained wherein drive force is permitted only in the transmission direction of drive force in the instant of the change-over to non-excitation. When a drive force is input in the reverse direction to the drive force transmitted in the one-way clutch state, the one-way clutch state is disengaged, and the disengaged state of the clutch is maintained until subsequent re-excitation. Therefore, change-over of the clutch at the rotation synchronous point RSP where the power recirculation mode and direct mode are changed over, can be performed rapidly.

    摘要翻译： 无级变速比无级变速器包括动力再循环模式离合器（9）和直接模式离合器（10）。 功率再循环模式离合器（9）和直接模式离合器（10）中的至少一个包括电磁双向离合器。 电磁双向离合器在励磁期间保持接合状态，并可以从驱动侧和非驱动侧传递驱动力。 另一方面，当从通电状态转换到非通电状态时，获得单向离合器状态，其中仅在变化瞬间的驱动力的传递方向上允许驱动力 - 非激励 当在与单向离合器状态下传递的驱动力相反的方向上输入驱动力时，单向离合器状态被分离，并且离合器的脱离状态保持直到后续的再激励。 因此，可以快速地执行在功率再循环模式和直接模式切换的旋转同步点RSP处的离合器的切换。

    Controller for infinite speed ratio transmission
    9.
    发明授权
    Controller for infinite speed ratio transmission 有权
    控制器用于无级变速传动

    公开(公告)号：US06317672B1

    公开(公告)日：2001-11-13

    申请号：US09615049

    申请日：2000-07-12

    申请人： Hiroaki Kuramoto ,  Motoharu Nishio ,  Hiromasa Sakai ,  Yasushi Narita ,  Tatsuya Nagato ,  Manzaburou Abe

    发明人： Hiroaki Kuramoto ,  Motoharu Nishio ,  Hiromasa Sakai ,  Yasushi Narita ,  Tatsuya Nagato ,  Manzaburou Abe

    IPC分类号： G06F1700

    CPC分类号： F16H61/6648 ,  F16H37/086 ,  F16H59/08 ,  F16H2037/088 ,  Y10T477/6242

    摘要： In an infinite speed ratio transmission comprising a continuously variable transmission (2), reduction gear unit (3) and planetary gear set (5), the speed ratio of the continuously variable transmission (2) is controlled by a step motor (36). A range selected by a selector lever (86) is detected by a sensor (84). When the selected range has changed from a stationary range to one of a forward motion range and a reverse motion range, a microprocessor (80) first drives the step motor (36) to a predetermined position (S48, S54). Subsequently, by driving the step motor (36) to an operating position corresponding to a geared neutral point at which the output rotation speed of the infinite speed ratio transmission is zero (S51, S52, S53, S57, S58, S59), the undesirable effects of hysteresis occurring in a relation between the operating position of the step motor (36) and the speed ratio of the continuously variable transmission (2) according to a torque shift of the continuously variable transmission (2) are avoided.

    摘要翻译： 在具有无级变速器（2），减速机构（3）和行星齿轮组（5）的无级变速比变速器中，无级变速器（2）的变速比由步进电动机（36）控制。 由选择杆（86）选择的范围由传感器（84）检测。 当所选择的范围从静止范围变化到向前运动范围和反向运动范围中的一个时，微处理器80首先将步进电机（36）驱动到预定位置（S48，S54）。 随后，通过将步进电机（36）驱动到与无级变速比变速器的输出转速为零的齿轮空档点（S51，S52，S53，S57，S58，S59）相对应的运转位置，不期望的 避免了根据无级变速器（2）的转矩移动在步进电动机（36）的操作位置与无级变速器（2）的变速比之间的关系中产生的滞后效应。

    Lock-up control apparatus for automatic transmission
    10.
    发明授权
    Lock-up control apparatus for automatic transmission 失效
    自动变速器锁定控制装置

    公开(公告)号：US5667458A

    公开(公告)日：1997-09-16

    申请号：US499258

    申请日：1995-07-07

    申请人： Yasushi Narita ,  Yasuhiro Niikura ,  Noboru Hattori ,  Shusaku Katakura ,  Hisaaki Tohjima

    发明人： Yasushi Narita ,  Yasuhiro Niikura ,  Noboru Hattori ,  Shusaku Katakura ,  Hisaaki Tohjima

    IPC分类号： F16H59/18 ,  F16H59/38 ,  F16H59/48 ,  F16H59/54 ,  F16H61/00 ,  F16H61/14 ,  B60K41/02

    CPC分类号： F16H61/143 ,  F16H2059/186 ,  F16H2059/385 ,  F16H2061/0087 ,  F16H2061/147 ,  F16H59/48 ,  F16H59/54 ,  Y10T477/635 ,  Y10T477/69 ,  Y10T477/735

    摘要： A lock-up control apparatus for a vehicle automatic transmission enables an engine stalling prevention at the time of a sudden deceleration in the lock-up state of a torque converter without causing the slip of the torque converter before the sudden deceleration, and prevents effectiveness of the fuel consumption from being sacrificed by a fuel cut. A controller performs the change-speed control on an automatic transmission through shift solenoids and on the basis of a throttle opening and a transmission output speed, and also performs the lock-up control of the torque converter through a lock-up solenoid. During the coasting drive when the throttle opening is set close to zero, the controller sets the torque converter to have a minimum lock-up capacity through the lock-up solenoid within such a range that no slip occurs. When the sudden deceleration is carried out, the controller releases the lock-up, though this lock-up release is rapidly achieved with the minimum lock-up capacity thereby to avoid the engine stalling.

    摘要翻译： 用于车辆自动变速器的锁止控制装置能够在扭矩转换器的锁定状态下的突然减速时防止发动机停转，而不会在突然减速之前引起变矩器的滑动，并且防止 燃料消耗由燃料切割牺牲。 控制器通过变速螺线管，基于节气门开度和变速器输出速度对自动变速器进行变速控制，并且还通过锁止螺线管进行变矩器的锁定控制。 在油门开度设定为接近零时，在滑行驱动期间，控制器通过锁止螺线管将变矩器设定为具有最小的锁定能力，在不发生滑差的范围内。 当执行突然减速时，控制器释放锁定，尽管通过最小的锁定能力快速实现该锁定释放，从而避免发动机停转。