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：US4884653A

公开(公告)日：1989-12-05

申请号：US83847

申请日：1987-08-10

申请人： Katsumi Kouno

发明人： Katsumi Kouno

IPC分类号： B60K17/348 ,  B60K23/08

CPC分类号： B60K23/0808 ,  B60K17/348 ,  Y10T477/606 ,  Y10T477/613

摘要： A controlling method of a four wheel drive vehicle includes a detecting step and a controlling step. The detecting step detects difference in speeds between a front driving shaft and a rear driving shaft. The controlling step controls an apparatus for controlling a distribution ratio of driving torque of the four wheel drive vehicle so as to harmonize the difference in the speeds with a desired value.

摘要翻译： 四轮驱动车辆的控制方法包括检测步骤和控制步骤。 检测步骤检测前驱动轴和后驱动轴之间的速度差。 控制步骤控制用于控制四轮驱动车辆的驱动扭矩的分配比率的装置，以便将速度差与期望值协调一致。

公开(公告)号：US5157992A

公开(公告)日：1992-10-27

申请号：US647424

申请日：1991-01-29

申请人： Takashi Hayashi ,  Yuji Hattori ,  Katsumi Kouno ,  Nobuyuki Kato

发明人： Takashi Hayashi ,  Yuji Hattori ,  Katsumi Kouno ,  Nobuyuki Kato

IPC分类号： F16H61/662

CPC分类号： F16H61/66254 ,  F16H61/66272 ,  Y10T477/621 ,  Y10T477/624

摘要： A hydraulic control apparatus for a vehicle continuously variable transmission including a pressure regulating valve having a valve spool which operates depending upon a determined current speed ratio of the transmission and a currently detected required output of the vehicle engine, to generate a controlled belt tensioning pressure for controlling the tension of a transmission belt at a required minimum level. The apparatus further includes a device responsive to an electric signal, for generating a pilot pressure to be applied to the valve, and an electronic control device for calculating a basic output pressure of the valve, based on the current speed ratio and the currently required output, according to a stored predetermined relationship among these two parameters and the basic output pressure, to determine the electric signal so that the belt tensioning pressure coincides with the optimum value.

公开(公告)号：US5085104A

公开(公告)日：1992-02-04

申请号：US502625

申请日：1990-04-02

申请人： Katsumi Kouno ,  Yuji Hattori ,  Kunio Morisawa

发明人： Katsumi Kouno ,  Yuji Hattori ,  Kunio Morisawa

IPC分类号： F16H59/48 ,  F16H59/54 ,  F16H61/662

CPC分类号： F16H61/66259 ,  F16H59/48 ,  F16H59/54 ,  Y10S477/901 ,  Y10S477/904 ,  Y10T477/621 ,  Y10T477/692

摘要： An apparatus for controlling a power transmitting system for an automotive vehicle having a continuously variable transmission including an actuating device for controlling a speed ratio thereof, the transmission transmitting power from an engine to drive wheels. The apparatus includes a device for determining a running speed of the vehicle, a device for determining a deceleration value of the vehicle, and a controller for determining a deceleration reference value based on the determined vehicle speed, and according to a predetermined relationship between the determined vehicle speed and the deceleration reference value. If the deceleration value exceeds the reference value, the controller commands the actuating device of the transmission to lower the speed ratio in a rapid shift-down mode.

摘要翻译： 一种用于控制具有无级变速器的机动车辆的动力传递系统的装置，其包括用于控制其速比的致动装置，从发动机到驱动轮的传动传递动力。 该装置包括用于确定车辆的行驶速度的装置，用于确定车辆的减速度值的装置，以及用于基于所确定的车辆速度确定减速度参考值的控制器，并且根据确定的车辆的预定关系 车速和减速参考值。 如果减速度值超过参考值，则控制器命令变速器的执行装置以快速下降模式降低变速比。

公开(公告)号：US4702725A

公开(公告)日：1987-10-27

申请号：US843237

申请日：1986-03-24

申请人： Katsumi Kouno ,  Daisaku Sawada

发明人： Katsumi Kouno ,  Daisaku Sawada

IPC分类号： F16H9/00 ,  F16H61/00 ,  F16H61/02 ,  F16H61/66 ,  F16H61/662 ,  F16H63/06 ,  F16H11/06

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

摘要： A hydraulic control system for a continuously variable transmission which has an input and an output variable-diameter pulley, a belt connecting the input and output pulleys, and a pair of cylinders for changing effective diameters of the pulleys. The control system includes a hydraulic source to supply a pressurized fluid for applying first and second line pressure to one and the other of the cylinders via a first and a second line, respectively. The control system comprises: a first regulator, connected to the first line, for regulating the first line pressure to be applied to the one cylinder, and thereby controlling a tension of the belt; a flow control device, disposed in the second line, for controlling flows of the fluid into and from the other cylinder, for controlling a speed ratio of the transmission; a second regulator, disposed between the hydraulic source and the first regulator, for controlling a rate of relief flow of the fluid therethrough from the second line into the first line, and thereby regulating the second line pressure which is higher than the first line pressure; and a controller for controlling the second regulator to regulate the second line pressure according to a predetermined condition.

摘要翻译： 一种用于无级变速器的液压控制系统，其具有输入和输出可变直径滑轮，连接输入和输出滑轮的皮带以及用于改变滑轮的有效直径的一对气缸。 控制系统包括液压源，用于分别经由第一和第二管线分别供应用于将第一和第二管路压力施加到一个和另一个气缸的加压流体。 控制系统包括：第一调节器，连接到第一管线，用于调节要施加到一个气缸的第一管路压力，从而控制带的张力; 流量控制装置，设置在第二管线中，用于控制流体进入和流出另一个气缸，用于控制变速器的速比; 第二调节器，设置在所述液压源和所述第一调节器之间，用于控制流体从所述第二管路进入所述第一管路的溢流流量，从而调节高于所述第一管路压力的所述第二管路压力; 以及控制器，用于根据预定条件控制第二调节器以调节第二管路压力。

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。

公开(公告)号：US4867732A

公开(公告)日：1989-09-19

申请号：US232666

申请日：1988-08-16

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

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

IPC分类号： B60W30/18 ,  F16H59/06 ,  F16H61/66 ,  F16H61/662

CPC分类号： B60W30/18 ,  B60W10/04 ,  B60W10/101 ,  B60W30/1819 ,  F16H61/66 ,  F16H61/66259 ,  Y10T477/6242 ,  Y10T477/62429

摘要： A hydraulic control device for controlling a belt-and-pulley type continuously variable transmission for an automotive vehicle which includes an input and an output shaft, a pair of variable-diameter pulleys provided on the input and output shafts, respectively, a transmission belt connecting the pair of pulleys, and a pair of hydraulic actuators for changing effective diameters of the variable-diameter pulleys. The hydraulic control device further includes a shift control valve device for controlling pressures applied to the hydraulic actuators, to change the speed ratio of the continuously variable transmission over a mechanically defined range, and a controller for applying a drive signal to the shift control valve device. The controller includes a device for limiting a value of the drive signal, so as to prevent the actual speed ratio of the transmission from reaching upper and lower limits of the mechanically defined range.

摘要翻译： 一种用于控制用于机动车辆的皮带式无级变速器的液压控制装置，其包括输入和输出轴，分别设置在输入和输出轴上的一对可变直径滑轮，连接 一对滑轮和一对用于改变可变直径滑轮的有效直径的液压致动器。 液压控制装置还包括用于控制施加到液压致动器的压力，以在机械限定范围内改变无级变速器的速比的变速控制阀装置，以及用于向变速控制阀装置施加驱动信号的控制器 。 控制器包括用于限制驱动信号的值的装置，以便防止变速器的实际速比达到机械限定范围的上限和下限。

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：US4858497A

公开(公告)日：1989-08-22

申请号：US75724

申请日：1987-07-20

申请人： Katsumi Kouno

发明人： Katsumi Kouno

IPC分类号： B60W10/04 ,  B60W10/10 ,  B60W10/101 ,  F16H9/00 ,  F16H61/00 ,  F16H61/662

CPC分类号： F16H61/66259 ,  Y02T10/76 ,  Y10T477/624 ,  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 second shafts, a belt connecting the first and second pulleys, and a first and a second hydraulic cylinder for changing effective diameters of the pulleys. The system includes a first pressure regulating valve, a shift-control valve for applying the first line pressure to one of the cylinders, and a second pressure regulating valve for regulating a pressure of the fluid flowing from the other cylinder, and thereby establishing a second line pressure. The system further includes a control device for controlling the shift-control valve so that an actual speed ratio of the transmission coincides with a target speed ratio determined depending upon a running condition of the vehicle. The control device is adapted to effect a feedback control of the first pressure regulating valve, to regulate the first line pressure so that a control error between the actual and target speed ratios coincides with a predetermined constant target value.

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各自的第二轴上的第一和第二可变直径滑轮，连接所述第一和第二滑轮的皮带以及第一和第二液压缸， 改变滑轮的有效直径。 该系统包括第一压力调节阀，用于将第一管路压力施加到一个气缸的换档控制阀，以及用于调节从另一气缸流动的流体的压力的第二压力调节阀，从而建立第二压力调节阀 线压力。 该系统还包括用于控制换档控制阀的控制装置，使得变速箱的实际变速比与根据车辆行驶状态确定的目标速度比一致。 控制装置适于实现第一压力调节阀的反馈控制，以调节第一管路压力，使得实际和目标速度比之间的控制误差与预定的恒定目标值一致。

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。