公开(公告)号：US5403242A

公开(公告)日：1995-04-04

申请号：US026153

申请日：1993-03-03

申请人： Tatsuo Wakahara ,  Satoshi Sakakibara ,  Akihiro Ueki

发明人： Tatsuo Wakahara ,  Satoshi Sakakibara ,  Akihiro Ueki

IPC分类号： F16H61/02 ,  F16H61/12 ,  F16H61/21 ,  B60K41/24

CPC分类号： F16H61/12 ,  F16H61/0206 ,  F16H2061/122 ,  F16H2061/1264 ,  F16H2306/00 ,  F16H61/0286 ,  F16H61/686

摘要： Under a higher speed gear position of the transmission, a control valve can drain a hydraulic pressure of a forward clutch to cause the forward clutch to take a disengaged condition. With this, undesired friction of a forward one-way clutch under such higher speed gear position is suppressed. A fail-safe system is employed for recovering an engaged condition of the forward clutch even when the control valve is stuck at such pressure draining position.

摘要翻译： 在变速器的较高档位下，控制阀可以排出前进离合器的液压，使前进离合器处于脱离状态。 由此，可以抑制在这种高速档位下的前进单向离合器的不希望的摩擦。 即使当控制阀被卡在这样的排出压力位置时，采用故障保护系统来恢复前进离合器的接合状态。

公开(公告)号：US06916269B2

公开(公告)日：2005-07-12

申请号：US10654615

申请日：2003-09-04

申请人： Masahiro Yamamoto ,  Midori Yamaguchi ,  Toshiji Iida ,  Tatsuo Wakahara ,  Makoto Sawada

发明人： Masahiro Yamamoto ,  Midori Yamaguchi ,  Toshiji Iida ,  Tatsuo Wakahara ,  Makoto Sawada

IPC分类号： F16H9/00 ,  F16H59/46 ,  F16H61/00 ,  F16H61/662 ,  B60K41/12

CPC分类号： F16H61/0021 ,  F16H59/46 ,  F16H61/66272 ,  F16H2061/66277 ,  Y10T477/624 ,  Y10T477/6242

摘要： In a V-belt type CVT, an actual-shift-ratio corresponding operated position of a step motor is calculated through conversion of an actual shift ratio expressed by the rotational-speed ratio between primary and secondary pulleys. A displacement amount is calculated between the actual-shift-ratio corresponding operated position of the step motor and an actual position thereof. A correction amount of the line pressure is calculated to reduce the displacement amount, and the line pressure is corrected in accordance therewith.

摘要翻译： 在V型皮带式CVT中，通过转换由主轮和副皮带轮之间的转速比表示的实际换档比来计算步进马达的实际换档比对应的操作位置。 在步进电动机的实际换档比对应操作位置与其实际位置之间计算位移量。 计算管路压力的校正量以减小位移量，并且根据其校正管路压力。

公开(公告)号：US5651752A

公开(公告)日：1997-07-29

申请号：US417045

申请日：1995-04-04

申请人： Tatsuo Wakahara ,  Koichi Hayasaki

发明人： Tatsuo Wakahara ,  Koichi Hayasaki

IPC分类号： F02D29/00 ,  B60W10/04 ,  B60W10/10 ,  B60W10/11 ,  F02D41/04 ,  F16H59/18 ,  F16H61/14 ,  F16H61/21 ,  F16H45/00

CPC分类号： F16H61/143 ,  F16H2045/0294 ,  F16H2059/186 ,  F16H61/21 ,  Y10T477/635 ,  Y10T477/679 ,  Y10T477/753 ,  Y10T477/79

摘要： A lock-up controller of a lock-up control system reads-in a vehicle speed V, a throttle opening degree TVO, an engine speed Ne, and a turbine speed Kt from sensors and outputs a fuel-out command and a fuel-supply restart command to an engine controller, to operate a lock-up clutch in a torque converter of an automatic transmission for an automotive vehicle in an accelerator-off (coasting) state of the vehicle. The lock-up control system makes it possible to realize locking-up of the torque converter providing an improved fuel consumption ratio of the engine and a large braking force from the engine, even when a vehicle speed increases due to running down a downward slope while the accelerator-off state continues, or when an up-shifting speed change occurs due to the accelerator-off state.

摘要翻译： 锁定控制系统的锁定控制器从传感器读取车速V，节气门开度TVO，发动机转速Ne和涡轮转速Kt，并输出燃油输出指令和燃料供给 重新启动命令到发动机控制器，以在车辆的加速器（滑行）状态下的机动车辆的自动变速器的变矩器中操作锁止离合器。 锁定控制系统使得可以实现变矩器的锁定，从而提供发动机的改进的燃料消耗率和来自发动机的大的制动力，即使当车辆速度由于沿向下的斜坡下降而增加时， 加速器关闭状态继续，或者当由于加速器关闭状态而发生升档速度变化时。

公开(公告)号：US5501311A

公开(公告)日：1996-03-26

申请号：US319047

申请日：1994-10-06

申请人： Tatsuo Wakahara

发明人： Tatsuo Wakahara

IPC分类号： B60K17/348 ,  B60K23/08 ,  F16D48/02

CPC分类号： B60K23/0808

摘要： A four wheel drive motor vehicle is of a type which has a variable torque transfer through which the driving force distribution between front and rear wheels is varied in accordance with the magnitude of a fluid pressure supplied to the transfer. A fluid pressure control device for producing the fluid pressure comprises a first hydraulic circuit which is arranged to have a first operation mode wherein the first hydraulic circuit outputs, for the transfer, a fluid pressure which is varied continuously; a second hydraulic circuit which is arranged to have a second operation mode wherein the second hydraulic circuit outputs, for the transfer, a fluid pressure which is varied stepwisely; a piping for connecting the first and second hydraulic circuits to constitute a united hydraulic circuit; and shutters arranged in given portions of the piping to selectively open and close the given portions for allowing the united hydraulic circuit to have the first and second operation modes selectively.

摘要翻译： 四轮驱动机动车辆是具有可变转矩传递的类型，根据提供给传送装置的流体压力的大小，前轮和后轮之间的驱动力分布通过该扭矩传递而变化。 一种用于产生流体压力的流体压力控制装置包括：第一液压回路，其被布置成具有第一操作模式，其中第一液压回路输出用于输送连续变化的流体压力; 第二液压回路，其设置成具有第二操作模式，其中所述第二液压回路输出用于转移的逐步变化的流体压力; 用于连接第一和第二液压回路以构成联合的液压回路的管道; 以及布置在管道的给定部分中的百叶窗，以选择性地打开和关闭给定部分，以允许联合液压回路选择性地具有第一和第二操作模式。

公开(公告)号：US5429561A

公开(公告)日：1995-07-04

申请号：US1713

申请日：1993-01-07

申请人： Tatsuo Wakahara ,  Masahiro Yamamoto

发明人： Tatsuo Wakahara ,  Masahiro Yamamoto

IPC分类号： F16H61/00 ,  F16H59/14 ,  F16H59/24 ,  F16H59/40 ,  F16H59/68 ,  F16H59/70 ,  F16H61/02 ,  F16H61/06 ,  F16H61/08 ,  F16H61/24

CPC分类号： F16H61/061 ,  F16H2059/6807 ,  F16H2059/683 ,  F16H2061/0255 ,  F16H59/14 ,  F16H59/24 ,  F16H59/40 ,  F16H59/70 ,  F16H61/08 ,  Y10T477/679 ,  Y10T477/6937 ,  Y10T477/6939

摘要： A shift control system for obtaining a smooth shift feeling in a shifting necessitating redeployment of friction elements. The shift control system is comprised of a sensor which detects a state that disengagement pressure of a friction element to be disengaged almost becomes zero during shifting. In reply to the detection of the sensor, a controller adjusts engagement pressure of the other friction element to be engaged at a predetermined value determined according to input torque and gear ratio.

摘要翻译： 一种变速控制系统，用于在需要重新部署摩擦元件的变速中获得平滑的换档感觉。 变速控制系统由传感器组成，该传感器检测在换挡期间要脱离的摩擦元件的脱离压力几乎变为零的状态。 响应于传感器的检测，控制器将根据输入转矩和齿轮比确定的预定值调节待啮合的另一摩擦元件的接合压力。

公开(公告)号：US5145045A

公开(公告)日：1992-09-08

申请号：US797194

申请日：1991-11-25

申请人： Tatsuo Wakahara

发明人： Tatsuo Wakahara

IPC分类号： F16H61/14

CPC分类号： F16H61/143

摘要： A control system for a lock-up clutch of an automatic transmission is provided which serves to change a variation rate of control pressure between partial engagement operation and full engagement operation, which adjusts a degree of lock-up clutch engagement. The system includes a lock-up control valve and a switching valve. The lock-up control valve is responsive to hydraulic pressure input to a first pilot port which is lower than a preselected threshold level to vary a pressure difference between apply and release chambers gradually at a first rate to establish disengagement or partial engagement of the lock-up clutch. The switching valve is responsive to hydraulic pressure input to a pilot port which is higher than a preselected threshold level to provide pilot pressure of a preselected level to a second pilot port of the lock-up control valve. The lock-up control valve is responsive to input of pressure into first and second pilot ports to vary the pressure difference between the apply and release chambers at a second rate greater than the first rate to establish full engagement of the lock-up clutch.

摘要翻译： 提供一种用于自动变速器的锁止离合器的控制系统，其用于改变部分接合操作和完全接合操作之间的控制压力的变化率，其调节锁止离合器接合程度。 该系统包括锁定控制阀和切换阀。 锁定控制阀响应于低于预先选择的阈值水平的第一先导口的液压输入，以逐渐以第一速率改变施加室和释放室之间的压力差，以建立锁定 - 离合器。 切换阀响应于高于预选阈值水平的先导端口的液压输入，以向锁定控制阀的第二先导端口提供预选级别的先导压力。 锁定控制阀响应于将压力输入到第一和第二先导端口中，以以大于第一速率的第二速率改变施加和释放室之间的压力差，以建立锁止离合器的完全接合。

公开(公告)号：US07169070B2

公开(公告)日：2007-01-30

申请号：US10670399

申请日：2003-09-26

申请人： Tateki Jozaki ,  Shigeru Ishii ,  Tatsuo Wakahara ,  Masahiro Yamamoto ,  Hiroyasu Tanaka ,  Youhei Ishikawa

发明人： Tateki Jozaki ,  Shigeru Ishii ,  Tatsuo Wakahara ,  Masahiro Yamamoto ,  Hiroyasu Tanaka ,  Youhei Ishikawa

IPC分类号： F16H61/02 ,  F16H61/06

CPC分类号： F16H61/12 ,  F16H61/662 ,  F16H61/66259 ,  F16H2061/1208 ,  F16H2061/122 ,  F16H2061/1284 ,  Y10T477/624

摘要： There are provided with a determination means for determining whether or not the correlation between the pressure value detected by the primary pressure sensor and the pressure value detected by the secondary pressure sensor is an actually impossible relation (Step 5), and a switchover means for switching over to an open control while prohibiting a feedback control when the correlation is determined to have become a relation actually impossible by the determination means (Step 6). Presence or absence of a fault to the primary pressure sensor or the secondary pressure sensor (particularly, fault of fixed output voltage) is judged based on the correlation between the output voltage of the primary pressure sensor and the output voltage of the secondary pressure sensor to prohibit the control of a primary pressure and a secondary pressure using the hydraulic pressure sensors when it is judged that there is a fault.

摘要翻译： 设置有确定装置，用于确定由一次压力传感器检测到的压力值与二次压力传感器检测到的压力值之间的相关性是否是实际上不可能的关系（步骤5），以及用于切换的切换装置 当确定相关性已经成为确定装置实际上不可能的关系时（步骤6），禁止反馈控制。 基于一次压力传感器的输出电压与二次压力传感器的输出电压与二次压力传感器的输出电压之间的相关性来判断主压力传感器或二次压力传感器（特别是固定输出电压的故障）是否存在故障 当判断有故障时，禁止使用液压传感器来控制一次压力和次级压力。

公开(公告)号：US20050192153A1

公开(公告)日：2005-09-01

申请号：US10670399

申请日：2003-09-26

申请人： Tateki Jozaki ,  Shigeru Ishii ,  Tatsuo Wakahara ,  Masahiro Yamamoto ,  Hiroyasu Tanaka ,  Youhei Ishikawa

发明人： Tateki Jozaki ,  Shigeru Ishii ,  Tatsuo Wakahara ,  Masahiro Yamamoto ,  Hiroyasu Tanaka ,  Youhei Ishikawa

IPC分类号： F16H9/00 ,  F16H59/26 ,  F16H59/68 ,  F16H61/12 ,  F16H61/662 ,  F16H63/06 ,  B60K41/12

CPC分类号： F16H61/12 ,  F16H61/662 ,  F16H61/66259 ,  F16H2061/1208 ,  F16H2061/122 ,  F16H2061/1284 ,  Y10T477/624

摘要： There are provided with a determination means for determining whether or not the correlation between the pressure value detected by the primary pressure sensor and the pressure value detected by the secondary pressure sensor is an actually impossible relation (Step 5), and a switchover means for switching over to an open control while prohibiting a feedback control when the correlation is determined to have become a relation actually impossible by the determination means (Step 6). Presence or absence of a fault to the primary pressure sensor or the secondary pressure sensor (particularly, fault of fixed output voltage) is judged based on the correlation between the output voltage of the primary pressure sensor and the output voltage of the secondary pressure sensor to prohibit the control of a primary pressure and a secondary pressure using the hydraulic pressure sensors when it is judged that there is a fault.

摘要翻译： 设置有确定装置，用于确定由一次压力传感器检测到的压力值与二次压力传感器检测到的压力值之间的相关性是否是实际上不可能的关系（步骤5），以及用于切换的切换装置 当确定相关性已经成为确定装置实际上不可能的关系时（步骤6），禁止反馈控制。 基于一次压力传感器的输出电压与二次压力传感器的输出电压与二次压力传感器的输出电压之间的相关性来判断主压力传感器或二次压力传感器（特别是固定输出电压的故障）是否存在故障 当判断有故障时，禁止使用液压传感器来控制一次压力和次级压力。

公开(公告)号：US06419059B1

公开(公告)日：2002-07-16

申请号：US09688243

申请日：2000-10-16

申请人： Hisao Nobu ,  Tatsuo Wakahara

发明人： Hisao Nobu ,  Tatsuo Wakahara

IPC分类号： F16H6114

CPC分类号： F16H57/04 ,  F16H61/143 ,  F16H2045/021

摘要： A lock-up control device controls a lock-up clutch in a torque converter. The lock-up clutch is engaged by supplying a lock-up control pressure. The torque converter transmits torque via oil in a torque converter chamber when the lock-up clutch is disengaged, and transmits torque directly when the lock-up clutch is engaged. In the lock-up state, the oil pressure in the torque converter chamber is decreased by discharging oil in the torque converter chamber. By providing a circuit which leads oil discharged from the torque converter chamber to a lubricating part of the transmission, the balance between the inflowing oil amount and outflowing oil amount is improved, and oil insufficiency is prevented.

摘要翻译： 锁定控制装置控制变矩器中的锁止离合器。 锁止离合器通过提供锁定控制压力接合。 当锁止离合器分离时，变矩器在变矩器室中通过油传递扭矩，并且当锁止离合器接合时，转矩直接传递。 在锁定状态下，通过在变矩器室中排出油来减小变矩器室中的油压。 通过设置将从变矩器室排出的油引导到变速器的润滑部的回路，能够提高流入油量与流出油量之间的平衡，防止油不足。

公开(公告)号：US06375591B1

公开(公告)日：2002-04-23

申请号：US09691847

申请日：2000-10-18

申请人： Tatsuo Wakahara ,  Kenichiro Murakami

发明人： Tatsuo Wakahara ,  Kenichiro Murakami

IPC分类号： F16H6112

CPC分类号： F16H61/12 ,  F16H59/68 ,  F16H2059/683 ,  F16H2061/0209 ,  F16H2061/1208 ,  F16H2061/1264 ,  F16H2061/1268

摘要： A valve (13, 14) causes fluid pressures to act individually on plural frictional elements (A, B) of an automatic transmission so as to selectively lock the rotation of the frictional elements (A, B). A control unit (21) determines that the automatic transmission has an interlock tendency when the fluid pressures acting on the frictional elements (A, B) detected by pressure sensors (24, 25) are both equal to or greater than a predetermined pressure. Completion of a gear position change-over is detected by a sensor (23, 26), and the control unit (21) does not determine the interlock tendency until a predetermined time &Dgr;t has elapsed after the gear position change-over is complete. In this way, an incorrect determination is prevented by avoiding the determination in a period when the pressures are unstable in a period immediately after the gear position change-over of the automatic transmission.

摘要翻译： 阀（13,14）使得流体压力分别作用在自动变速器的多个摩擦元件（A，B）上，以便选择性地锁定摩擦元件（A，B）的旋转。 当由压力传感器（24,25）检测到的作用在摩擦元件（A，B）上的流体压力均等于或大于预定压力时，控制单元（21）确定自动变速器具有互锁倾向。 通过传感器（23,26）检测到齿轮位置切换的完成，并且控制单元（21）在齿轮位置转换完成之后直到经过了预定时间DELTAt之后才确定联锁倾向。 以这种方式，通过避免在自动变速器的档位切换之后的时间段内的压力不稳定的期间中，可以防止错误的判定。