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1. 发明授权

US5556356A Hydraulic control system for an automatic transmission of a vehicle 失效
标题翻译：用于车辆自动变速器的液压控制系统
公开(公告)号：US5556356A
公开(公告)日：1996-09-17
申请号：US344579
申请日：1994-11-18
申请人： Naoki Hakamada , Mitsuo Inagaki , Yoriaki Ando , Kunihiro Kubo
发明人： Naoki Hakamada , Mitsuo Inagaki , Yoriaki Ando , Kunihiro Kubo
IPC分类号： B60W10/00 , B60W10/10 , F16H61/02 , F16H61/06 , F16H61/26
CPC分类号： F16H61/06 , F16H61/0206 , F16H2061/0255 , Y10T477/69363 , Y10T477/6937 , Y10T477/693973
摘要： A hydraulic control system for an automatic transmission of automotive vehicles is provided. The hydraulic control system includes a pressure source, a plurality of solenoid valves, and a plurality of directional control valves. Each solenoid valve selectively supplies and release hydraulic pressure to and from one of frictional element of a power train of the automatic transmission according to a given schedule of transmission operation for establishing a given gear ratio. The directional control valves are interposed between the frictional elements of the power train and the solenoid valves, respectively. Each of the directional control valves is responsive to input of the hydraulic pressure supplied from the pressure source through a preselected hydraulic line to assume first and second valve positions, the first valve position being to allow the hydraulic pressure to be directed to one of the frictional elements, the second valve position being to release the hydraulic pressure acting on one of the frictional element. Additionally, the hydraulic pressure to activate the frictional elements is reduced in pressure level temporarily upon supply thereto for absorbing mechanical shock caused by engagement of the frictional elements.
摘要翻译：提供了一种用于汽车自动变速器的液压控制系统。液压控制系统包括压力源，多个电磁阀和多个方向控制阀。每个电磁阀根据给定的变速器运行时间表，选择性地将液压压力输送到自动变速器的动力传动系的摩擦元件中并从其中的一个释放。方向控制阀分别介于动力传动系的摩擦元件和电磁阀之间。每个方向控制阀响应于从压力源通过预选的液压管线输入的液压，以采取第一和第二阀位置，第一阀位置是允许液压被引导到摩擦元件，第二阀位置是释放作用在摩擦元件之一上的液压。此外，激活摩擦元件的液压在供给时暂时降低了压力水平，以吸收由摩擦元件的接合引起的机械冲击。

2. 发明授权

US5681241A Automatic transmission for automotive vehicles 失效
标题翻译：汽车自动变速器
公开(公告)号：US5681241A
公开(公告)日：1997-10-28
申请号：US450588
申请日：1995-05-31
申请人： Kunihiro Kubo , Yoriaki Ando , Naoki Hakamada
发明人： Kunihiro Kubo , Yoriaki Ando , Naoki Hakamada
IPC分类号： B60W10/02 , B60W10/10 , B60W10/18 , B60W10/184 , F16H61/02 , F16H61/12 , F16H61/70 , F16H61/26
CPC分类号： F16H61/12 , F16H2061/1224 , F16H2061/1232 , F16H2061/1264 , F16H2061/1268 , F16H2306/00 , F16H61/0206 , F16H61/686 , F16H61/702 , Y10S477/906 , Y10T477/69363
摘要： A hydraulic control system for an automatic transmission of an automotive vehicle is provided which has a fail-safe function of preventing unsafe operation of the automatic transmission if a failure occurs in any of solenoid valves which control engagement operations of frictional elements such as clutches and brakes of the transmission. The hydraulic control system includes a hydraulic pressure flow control unit which controls hydraulic pressure flow between at least one of the frictional elements and at least one of the solenoid valves to allow the hydraulic pressure to be supplied to a predetermined combination of the frictional elements to achieve the power transmission at one of given gear ratios. The hydraulic pressure flow control unit restricts the hydraulic pressure flow to an inoperative combination of the frictional elements which provides no power transmission. With these arrangements, the power transmission is established if any of the solenoid valves malfunctions to allow the vehicle to travel.
摘要翻译：提供一种用于机动车辆的自动变速器的液压控制系统，其具有防止在控制诸如离合器和制动器之类的摩擦元件的接合操作的电磁阀中发生故障时自动变速器的不安全操作的故障保护功能的传输。液压控制系统包括液压流量控制单元，其控制至少一个摩擦元件和至少一个电磁阀之间的液压流动，以允许将液压供应到摩擦元件的预定组合以实现在给定的齿轮比之间的动力传动。液压流量控制单元将液压流限制到不产生动力传递的摩擦元件的不合组合。利用这些布置，如果任何电磁阀发生故障以允许车辆行驶，则建立动力传递。

3. 发明授权

US5679086A Hydraulic control system for automatic transmission of automotive vehicles 失效
标题翻译：汽车自动变速器液压控制系统
公开(公告)号：US5679086A
公开(公告)日：1997-10-21
申请号：US580373
申请日：1995-12-28
申请人： Yoriaki Ando , Kunihiro Kubo
发明人： Yoriaki Ando , Kunihiro Kubo
IPC分类号： F16H61/00 , F16H61/02 , F16H5/66
CPC分类号： F16H61/0206 , Y10T477/693635
摘要： An automatic transmission for an automotive vehicle comprises electromagnetic valves 5A-5C activated or deactivated in accordance with a given shift schedule determined based on traveling conditions of the automotive vehicle, a plurality of planetary gear trains 4A-4C driven by an output force of an engine, a plurality of friction devices B1-B4 and C1-C3 receiving hydraulic pressure to selectively connect or fix components constituting planetary gear trains 4A-4C, and a mechanical shift valve 6A having a pair of pressure chambers 62A and 63A and plural ports 64A, 65A and 66A. Upon application of hydraulic pressure to pressure chamber 62A, a fluid communicating path is established in the shift valve 6A so as to connect brake B1 and manual shift valve 8. When hydraulic pressure is applied to both of pressure chambers 62A and 63A, pressurized oil is drained from brake B1. Supply and release of hydraulic pressure to clutches C1-C3, brakes B1-B4 and pressure chambers 62A and 63A of the mechanical shift valve 6A is controlled by electromagnetic valves 5A-5C.
摘要翻译：用于机动车辆的自动变速器包括根据基于机动车辆的行驶状态确定的给定换档计划激活或停用的电磁阀5A-5C，由发动机的输出力驱动的多个行星齿轮系4A-4C 多个摩擦装置B1-B4和C1-C3接收液压以选择性地连接或固定构成行星齿轮系4A-4C的部件，以及具有一对压力室62A和63A以及多个端口64A的机械换档阀6A， 65A和66A。在对压力室62A施加液压时，在换档阀6A中建立流体连通路径，以连接制动器B1和手动换挡阀8.当对压力室62A和63A施加液压时，加压油为从制动器B1排出。离合器C1-C3，制动器B1-B4和机械换档阀6A的压力室62A和63A的液压供给和释放由电磁阀5A-5C控制。

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