公开(公告)号：US4685357A

公开(公告)日：1987-08-11

申请号：US801831

申请日：1985-11-26

申请人： Daisaku Sawada ,  Masami Sugaya ,  Yoshinobu Soga ,  Ryuji Imai

发明人： Daisaku Sawada ,  Masami Sugaya ,  Yoshinobu Soga ,  Ryuji Imai

IPC分类号： F16H9/00 ,  F16H61/00 ,  F16H61/662 ,  B60K41/16

CPC分类号： F16H61/66272 ,  Y10T477/624 ,  Y10T477/6242 ,  Y10T477/62427

摘要： A hydraulic control system for a continuously variable transmission having two variable-diameter pulleys, a belt connecting the pulleys to transmit power from one of the pulleys to the other, and corresponding cylinders for changing effective diameters of the pulleys. The control system comprises: a hydraulic source delivering a pressurized fluid; a first pressure regulating device for regulating the pressurized fluid to apply a first line pressure to one of the cylinders for controlling a tension of the belt; a flow control device for controlling flow of the fluid into and from the other cylinder to change the effective diameters of the pulleys to vary a speed ratio of the transmission; a second pressure regulating device provided between the hydraulic source and the first pressure regulating device to regulate the pressurized fluid to apply a second line pressure to the flow control device, the second line pressure being higher than a pressure in the above-indicated hydraulic cylinder or the first line pressure by a predetermined value; and a releasing device for releasing the second pressure regulating device from its regulating operation while the speed ratio of the transmission is changed with the fluid discharged from the above-indicated other cylinder, or while the speed ratio is held constant.

摘要翻译： 一种用于无级变速器的液压控制系统，其具有两个可变直径的滑轮，连接滑轮以将功率从一个滑轮传递到另一个的皮带，以及用于改变皮带轮的有效直径的对应的气缸。 控制系统包括：输送加压流体的液压源; 第一压力调节装置，用于调节加压流体以向一个气缸施加第一管路压力，以控制带的张力; 流量控制装置，用于控制流体进入和流出另一个气缸以改变滑轮的有效直径以改变变速器的速比; 第二压力调节装置，设置在液压源和第一压力调节装置之间，以调节加压流体以向流量控制装置施加第二管路压力，第二管路压力高于上述液压缸中的压力或 第一行压力达预定值; 以及释放装置，用于当从上述另一个气缸排出的流体改变变速器的速比时，或者当变速比保持恒定时，释放第二压力调节装置的调节操作。

公开(公告)号：US4642069A

公开(公告)日：1987-02-10

申请号：US782903

申请日：1985-10-02

申请人： Daisaku Sawada ,  Masami Sugaya ,  Ryuji Imai ,  Yoshinobu Soga

发明人： Daisaku Sawada ,  Masami Sugaya ,  Ryuji Imai ,  Yoshinobu Soga

IPC分类号： F16H9/00 ,  F16H61/00 ,  F16H61/662 ,  F16H11/04

CPC分类号： F16H61/662

摘要： A hydraulic control system for a continuously variable transmission having a first and a second variable-diameter pulley provided on a first and a second shaft, a transmission belt connecting the first and second pulleys to transmit power from one of the first and second pulleys to the other, and a pair of hydraulic cylinders for changing an effective diameter of the pulleys engaging the belt. The hydraulic control system includes a hydraulic source delivering a pressurized fluid, and a flow control device for controlling a flow of the pressurized fluid from said hydraulic source into one of said hydraulic cylinders, and a flow of the fluid from said one hydraulic cylinder, thereby changing the effective diameters of the pulleys to vary a speed ratio of the transmission. The control system comprises a pressure regulating device for regulating the pressurized fluid which is delivered from the hydraulic source and applied to the flow control device so that a pressure of the pressurized fluid is higher than a pressure in the above-indicated one hydraulic cylinder by a predetermined value.

摘要翻译： 一种用于无级变速器的液压控制系统，其具有设置在第一和第二轴上的第一和第二可变直径滑轮，连接第一和第二滑轮以将动力从第一和第二滑轮之一传递到第一和第二滑轮的传动皮带 以及用于改变与皮带接合的滑轮的有效直径的一对液压缸。 液压控制系统包括输送加压流体的液压源和用于控制加压流体从所述液压源流入所述液压缸中的一个的流量控制装置，以及来自所述一个液压缸的流体流，由此 改变滑轮的有效直径以改变变速器的速比。 控制系统包括压力调节装置，用于调节从液压源输送并施加到流量控制装置的加压流体，使得加压流体的压力高于上述一个液压缸中的压力 预定值。

公开(公告)号：US5203233A

公开(公告)日：1993-04-20

申请号：US805058

申请日：1991-12-11

申请人： Yuji Hattori ,  Yoshinobu Soga ,  Masami Sugaya ,  Nobuyuki Kato

发明人： Yuji Hattori ,  Yoshinobu Soga ,  Masami Sugaya ,  Nobuyuki Kato

IPC分类号： F16H9/00 ,  B62M9/06 ,  F16H61/00 ,  F16H61/12 ,  F16H61/662

CPC分类号： F16H61/66272 ,  Y10T477/624

摘要： A hydraulic control apparatus for controlling a belt-and-pulley type continuously variable transmission of a motor vehicle having an engine, which transmission includes a pair of hydraulic actuators one of which receives a belt tensioning pressure for controlling a tension of a transmission belt. The hydraulic control apparatus includes an engine-output detecting valve for generating an engine output pressure indicative of a currently required output of the engine, a solenoid-operated valve for regulating a modified engine output pressure based on the engine output pressure generated by the engine-output detecting valve, and a pressure regulating valve for regulating the belt tensioning pressure based on at least the modified output pressure. The modified engine output pressure is obtained so that the belt tensioning pressure is controlled to an optimum level.

摘要翻译： 一种用于控制具有发动机的机动车辆的带式和带式无级变速器的液压控制装置，该变速器包括一对液压致动器，其中一个液压致动器接收用于控制传动皮带张力的皮带张紧压力。 液压控制装置包括：发动机输出检测阀，用于产生指示发动机当前所需输出的发动机输出压力;电磁阀，用于基于发动机输出压力产生的发动机输出压力来调节发动机输出压力; 输出检测阀和用于至少基于改变的输出压力调节带张紧压力的压力调节阀。 获得改进的发动机输出压力，使得带张力压力被控制到最佳水平。

公开(公告)号：US4967621A

公开(公告)日：1990-11-06

申请号：US443845

申请日：1989-12-04

申请人： Yoshinobu Soga ,  Masami Sugaya ,  Katsumi Kouno ,  Susumu Okawa

发明人： Yoshinobu Soga ,  Masami Sugaya ,  Katsumi Kouno ,  Susumu Okawa

IPC分类号： B60W30/18 ,  F02B75/02 ,  F16H37/08 ,  F16H47/06 ,  F16H61/66 ,  F16H61/662

CPC分类号： B60W30/18 ,  B60W10/04 ,  B60W10/101 ,  B60W30/1819 ,  F16H47/065 ,  F16H61/66 ,  F16H61/66259 ,  F02B2075/025 ,  Y10T477/624 ,  Y10T477/62429

摘要： A hydraulic control device for controlling a belt-and-pulley type continuously variable transmission for a motor vehicle which has two variable-diameter pulleys connected by a belt, and two hydraulic actuators for changing effective diameters of the pulleys. The hydraulic control device includes a first and a second pressure regulating valve for adjusting a pressure of a fluid supplied from a hydraulic power source, respectively to a first line pressure and a second line pressure lower than the first line pressure, and a CVT shift control valve device for controlling a speed ratio of the transmission. The valve device includes a shift-direction switching directional control valve and a shift-speed control flow control valve. The directional control valve is operable between a first position in which one of the hydraulic actuators communicates with a first pressure line having the first line pressure, while the other actuator communicates with an atmosphere or a second pressure line having a second line pressure, and a second position in which the above-indicated one actuator communicates with the atmosphere or second pressure line while the other actuator communicates with the first pressure line. The flow control valve controls rates of flows of the fluid to and from the actuators, in response to an operation of the directional control valve.

公开(公告)号：US5211083A

公开(公告)日：1993-05-18

申请号：US809164

申请日：1991-12-18

申请人： Yuji Hattori ,  Yoshinobu Soga ,  Masami Sugaya ,  Nobuyuki Kato

发明人： Yuji Hattori ,  Yoshinobu Soga ,  Masami Sugaya ,  Nobuyuki Kato

IPC分类号： F16H9/00 ,  F16H61/02 ,  F16H61/14 ,  F16H61/662

CPC分类号： F16H61/143 ,  F16H61/66272 ,  F16H2061/145 ,  F16H2061/6608 ,  F16H2061/66281 ,  Y10T477/6203 ,  Y10T477/624 ,  Y10T74/19153

摘要： A hydraulic control apparatus for controlling a vehicle power transmitting system including a belt-and-pulley type continuously variable transmission and a torque converter provided with a lock-up clutch. The transmission includes a pair of hydraulic actuators one of which receives a belt tensioning pressure for controlling a tension of a transmission belt. The hydraulic control apparatus includes a lock-up clutch control valve which is selectively placed in an engaging and a releasing position for engaging and releasing the lock-up clutch, respectively, a slip control valve for controlling an amount of slipping of the lock-up clutch until the clutch is fully engaged, a pressure control device for raising the belt tensioning pressure so as to increase the tension of the transmission belt; and a pilot-pressure generating device for applying a pilot pressure simultaneously to the slip control valve and the pressure control means, so that the belt tensioning pressure is raised while the slip control valve controls the amount of slipping of the lock-up clutch.

摘要翻译： 一种用于控制包括皮带轮型无级变速器的车辆动力传递系统和设置有锁止离合器的变矩器的液压控制装置。 变速器包括一对液压致动器，其中一个液压致动器接收用于控制传动皮带张力的皮带张紧压力。 液压控制装置包括锁定离合器控制阀，其被选择性地放置在接合和释放位置，用于分别接合和释放锁止离合器;滑动控制阀，用于控制锁定的滑动量 离合器直到离合器完全接合，用于提升皮带张紧压力以增加传动皮带的张力的压力控制装置; 以及先导压力发生装置，用于同时向滑动控制阀和压力控制装置施加先导压力，使得当打滑控制阀控制锁止离合器的滑动量时，带张紧压力升高。

公开(公告)号：US5052980A

公开(公告)日：1991-10-01

申请号：US476527

申请日：1990-02-07

申请人： Hiroshi Itoh ,  Masami Sugaya ,  Yoshinobu Soga ,  Kunio Morisawa ,  Ryoji Habuchi ,  Katsumi Kouno ,  Yuji Hattori ,  Takashi Hayashi

发明人： Hiroshi Itoh ,  Masami Sugaya ,  Yoshinobu Soga ,  Kunio Morisawa ,  Ryoji Habuchi ,  Katsumi Kouno ,  Yuji Hattori ,  Takashi Hayashi

IPC分类号： F16H61/662

CPC分类号： F16H61/66259

摘要： A hydraulic control apparatus for a power transmitting system for an automotive vehicle having a continuously variable transmission which has a first and a second shaft, a pair of variable-diameter pulleys provided on the first and second shafts, a belt connecting the pulleys, and a pair of hydraulic actuators for changing diameters of the pulleys, wherein a tension of the belt is controlled by regulating an actuating pressure in a driven side actuator of the hydraulic actuators which is provided on a driven one of the two shafts. The apparatus includes a pressure regulating valve which has a valve spool for regulating the actuating pressure in the driven side actuator, and a pressure-reducing chamber for receiving a pressure-reducing pilot pressure for biasing the spool for reducing the actuating pressure. The apparatus further includes a pilot pressure generator for generating the pressure-reducing pilot pressure to be applied to the pressure-reducing chamber, when the detected vehicle running speed exceeds a predetermined value.

摘要翻译： 一种用于机动车辆的动力传递系统的液压控制装置，其具有无级变速器，其具有第一和第二轴，设置在第一和第二轴上的一对可变直径滑轮，连接滑轮的皮带和 一对用于改变皮带轮直径的液压致动器，其中通过调节设置在两个轴中的驱动的一个轴上的液压致动器的从动侧致动器中的致动压力来控制带的张力。 该装置包括压力调节阀，其具有用于调节从动侧致动器中的致动压力的阀芯，以及用于接收减压先导压力的减压室，用于使阀芯偏压以降低致动压力。 该装置还包括先导压力发生器，用于当检测到的车辆行驶速度超过预定值时产生要施加到减压室的减压先导压力。

公开(公告)号：US4778435A

公开(公告)日：1988-10-18

申请号：US016559

申请日：1987-02-19

申请人： Masami Sugaya ,  Katsumi Kouno ,  Yoshinobu Soga ,  Susumu Okawa

发明人： Masami Sugaya ,  Katsumi Kouno ,  Yoshinobu Soga ,  Susumu Okawa

IPC分类号： B60W10/04 ,  B60W10/10 ,  B60W10/101 ,  F16H9/00 ,  F16H59/06 ,  F16H61/02 ,  F16H61/04 ,  F16H61/66 ,  F16H61/662 ,  F16H63/06 ,  F16H11/04

CPC分类号： B60W30/18 ,  B60W10/04 ,  B60W10/101 ,  B60W30/1819 ,  F16H61/66 ,  F16H61/66259 ,  Y10T477/62427

摘要： A hydraulic control system for a continuously variable transmission for an automotive vehicle, the transmission having a first and a second variable-diameter pulley provided on respective first and second shafts, a belt connecting the first and second pulleys, and a first and a second hydraulic cylinder for changing effective diameters of the first and second pulleys. The control system includes a first pressure regulating valve for regulating the pressure of a fluid delivered from a pressure source, and thereby establishing a first line pressure, a shift-control valve for applying the first line pressure to one of the first and second cylinders, while simultaneously permitting a flow of the fluid from the other cylinder, thereby changing the effective diameters of the first and second pulleys, and a second pressure regulating valve for regulating the pressure of one of a first and a second discharge flow of the fluid from the respective first and second cylinders through the shift-control valve, and thereby establishing a second line pressure lower than the first line pressure. A relief line is provided for releasing the other of the first and second discharge flows of the fluid. The relief line is exposed to a substantially atmospheric pressure.

摘要翻译： 一种用于机动车辆的无级变速器的液压控制系统，所述变速器具有设置在相应的第一和第二轴上的第一和第二可变直径滑轮，连接第一和第二滑轮的皮带以及第一和第二液压 用于改变第一和第二滑轮的有效直径的气缸。 控制系统包括用于调节从压力源输送的流体的压力并由此建立第一管路压力的第一压力调节阀，用于将第一管路压力施加到第一和第二气缸中的一个的换挡控制阀， 同时允许来自另一个气缸的流体流动，从而改变第一和第二滑轮的有效直径;以及第二压力调节阀，用于调节来自第一和第二滑轮的流体的第一和第二排出流中的一个的压力 相应的第一和第二气缸通过换档控制阀，从而建立低于第一管路压力的第二管路压力。 提供释放线以释放流体的第一和第二排出流中的另一个。 浮雕线暴露于基本上大气压。

公开(公告)号：US4772249A

公开(公告)日：1988-09-20

申请号：US16635

申请日：1987-02-19

申请人： Katsumi Kouno ,  Susumu Okawa ,  Masami Sugaya ,  Yoshinobu Soga

发明人： Katsumi Kouno ,  Susumu Okawa ,  Masami Sugaya ,  Yoshinobu Soga

IPC分类号： B60W30/18 ,  F16H61/00 ,  F16H61/66 ,  F16H61/662 ,  F16H63/06 ,  F16H11/02

CPC分类号： B60W30/18 ,  B60W10/04 ,  B60W10/101 ,  B60W30/1819 ,  F16H61/66 ,  F16H61/66259 ,  F16H61/0021 ,  Y10T477/62427

摘要： A hydraulic control system for a continuously variable transmission for an automotive vehicle, the transmission having a first and a second variable-diameter pulley provided on respective first and second shafts, a belt connecting the first and second pulleys, and a first and a second hydraulic cylinder for changing effective diameters of the first and second pulleys. The control system includes a shift-control valve receiving a first line pressure from said pressure source to one of the cylinders, while simultaneously permitting a flow of the fluid from the other cylinder. A second pressure line is connected to the shift-control valve to receive therefrom a pressure of the fluid flowing from above-indicated other cylinder. A pressure regulating valve regulates the pressure in the second pressure line, as a second line pressure lower than said first line pressure. The control system further includes at least one one-way by-pass line or restricted by-pass line which connects the second pressure line to at least one of the two cylinders, respectively. Each by-pass line permits a flow of the fluid from the second pressure line to the corresponding cylinder, or a restricted flow of the fluid between the second pressure line and the hydraulic cylinder.

摘要翻译： 一种用于机动车辆的无级变速器的液压控制系统，所述变速器具有设置在相应的第一和第二轴上的第一和第二可变直径滑轮，连接第一和第二滑轮的皮带以及第一和第二液压 用于改变第一和第二滑轮的有效直径的气缸。 该控制系统包括一个换档控制阀，该换档控制阀从所述压力源接收到一个气缸的第一管路压力，同时允许流体从另一个气缸流出。 第二压力线连接到换档控制阀，以从其接收从上述另一气缸流动的流体的压力。 压力调节阀调节第二压力管线中的压力，作为低于所述第一管路压力的第二管路压力。 所述控制系统还包括分别将所述第二压力线连接到所述两个气缸中的至少一个的至少一个单向旁路线路或限制旁路线路。 每个旁路管线允许流体从第二压力管线流到相应的气缸，或者允许流体在第二压力管线和液压缸之间的限制流动。

公开(公告)号：US5050715A

公开(公告)日：1991-09-24

申请号：US476350

申请日：1990-02-07

申请人： Hiroshi Itoh ,  Kunio Morisawa ,  Ryoji Habuchi ,  Masami Sugaya ,  Yoshinobu Soga

发明人： Hiroshi Itoh ,  Kunio Morisawa ,  Ryoji Habuchi ,  Masami Sugaya ,  Yoshinobu Soga

IPC分类号： F16H61/14 ,  F16H61/662

CPC分类号： F16H61/66259 ,  F16H61/143 ,  F16H2061/6608 ,  Y10T477/6197 ,  Y10T477/6203 ,  Y10T477/75 ,  Y10T477/78

摘要： A hydraulic control apparatus for a vehicle power transmitting system having a fluid coupling equipped with a lock-up clutch, and a transmission to which power is transmitted from an engine of the vehicle through the fluid coupling. The fluid coupling has an engaging chamber and a releasing chamber for engaging and releasing the lock-up clutch. The apparatus includes a discharge passage communicating with the engaging chamber, for normally draining the engaging chamber to a drain, to thereby normally release the lock-up clutch, and a rapid release valve connected to the discharge passage. The rapid release valve operates to by-pass the discharge passage to the drain therethrough, for thereby rapidly draining the engaging chamber to rapidly release the lock-up clutch. A lock-up pressure regulating valve is provided for regulating a lock-up clutch pressure applied to the fluid coupling, normally to a first value, and upon operation of the rapid release valve, to a second value higher than the first value.

摘要翻译： 一种用于具有装配有锁止离合器的流体联轴器的车辆动力传递系统的液压控制装置，以及通过流体联轴器从车辆的发动机传递动力的变速器。 流体联接器具有接合室和用于接合和释放锁止离合器的释放室。 该装置包括与接合室连通的排出通道，用于将接合室正常排放到排水口，从而正常地释放锁止离合器，以及连接到排放通道的快速释放阀。 快速释放阀用于将排出通道旁通至排水通道，从而快速排出接合室以快速释放锁止离合器。 提供了一种锁定压力调节阀，用于将通常达到第一值并且在快速释放阀操作时，将施加到流体联轴器的锁止离合器压力调节到高于第一值的第二值。

公开(公告)号：US5006093A

公开(公告)日：1991-04-09

申请号：US476601

申请日：1990-02-07

申请人： Hiroshi Itoh ,  Masami Sugaya ,  Yoshinobu Soga ,  Kunio Morisawa ,  Ryoji Habuchi ,  Katsumi Kouno ,  Yuji Hattori

发明人： Hiroshi Itoh ,  Masami Sugaya ,  Yoshinobu Soga ,  Kunio Morisawa ,  Ryoji Habuchi ,  Katsumi Kouno ,  Yuji Hattori

IPC分类号： F16H61/662

CPC分类号： F16H61/66259 ,  Y10T477/6197 ,  Y10T477/6203 ,  Y10T477/6242 ,  Y10T477/62429

摘要： A hydraulic control apparatus for a vehicle power transmitting system having a continuously variable transmission having a first and a second shaft, a pair of variable-diameter pulleys provided on the shafts, a belt connecting the pulleys, and two hydraulic actuators for changing diameters of the pulleys. The apparatus includes a directional control valve for supplying a fluid from a pressure line to one of the two actuators while discharging the fluid from the other actuator, a first fluid passage connected to the directional control valve, for primarily supplying the fluid from the pressure line to a driving side actuator of the two actuators which is provided on a driving one of the first and second shafts, a second fluid passage connected to the directional control valve, for primarily supplying the fluid from the pressure line to a driven side actuator of the hydraulic actuators, and a flow restrictor for restricting a flow of the fluid through the first fluid passage so that a fluid flow resistance of the first fluid passage is higher than a fluid flow resistance of the second fluid passage.

摘要翻译： 一种用于具有无级变速器的车辆动力传递系统的液压控制装置，所述无级变速器具有第一和第二轴，设置在所述轴上的一对可变直径滑轮，连接所述滑轮的皮带以及用于改变所述第二轴的直径的两个液压致动器 滑轮 该装置包括方向控制阀，用于将来自压力管线的流体从两个致动器中的一个供应，同时从另一致动器排出流体;连接到方向控制阀的第一流体通道，用于主要从压力管线 所述两个致动器的驱动侧致动器设置在所述第一和第二轴的驱动一个上;第二流体通道，其连接到所述方向控制阀，用于主要将流体从所述压力线供应到所述第二和第二轴的从动侧致动器; 液压致动器和用于限制流体流过第一流体通道的流量限制器，使得第一流体通道的流体阻力高于第二流体通道的流体流动阻力。