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    • 4. 发明授权
    • Control system for automatic transmission
    • 自动变速器控制系统
    • US5741201A
    • 1998-04-21
    • US645958
    • 1996-05-10
    • Hiroshi TsutsuiMasahiro HayabuchiMasaaki NishidaYoshihisa Yamamoto
    • Hiroshi TsutsuiMasahiro HayabuchiMasaaki NishidaYoshihisa Yamamoto
    • F16H61/20F16H59/44F16H59/50F16H59/54F16H59/68F16H61/06
    • F16H61/061F16H2059/6807F16H2061/207F16H2312/022F16H59/44F16H59/54F16H61/20Y10T477/689Y10T477/6895
    • A control system for an automatic transmission includes: an input clutch applied, responsive to selection of a forward running range, to transmit the rotation of an engine to a transmission mechanism; a hydraulic servo for selectively applying/releasing the input clutch; a stop state detector for detecting a stop state of a vehicle in terms of the selection of the forward running range, lack of vehicle speed, the release of an accelerator pedal and the depression of a brake pedal; starting operation detector for detecting an operation to start the vehicle in motion; application state detector for detecting the application state of the input clutch; and a controller for controlling oil pressure fed to the hydraulic servo on the basis of signals coming from the various detectors. If arrival at a predetermined released state is decided, the hydraulic servo is fed with a summed oil pressure which is the total of an initial application oil pressure and a release oil pressure, to initiate piston movement and start of engagement of the input clutch, and the oil pressure is thereafter gradually raised from the summed pressure on the basis of a predetermined pressure relationship. If a failure to arrive at the predetermined released state is decided, the oil pressure is gradually raised on the basis of the predetermined pressure relationship from the oil pressure which is fed to the hydraulic servo when a starting operation is detected.
    • 一种用于自动变速器的控制系统,包括:输入离合器,响应于选择正向行驶范围,将发动机的旋转传递到变速机构; 用于选择性地施加/释放输入离合器的液压伺服机构; 根据前进行驶范围的选择,车速的不足,油门踏板的释放以及制动踏板的按下来检测车辆的停止状态的停止状态检测器; 启动操作检测器,用于检测运动中启动车辆的操作; 用于检测输入离合器的应用状态的应用状态检测器; 以及控制器,用于根据来自各种检测器的信号来控制供给液压伺服的油压。 如果确定达到预定的释放状态,则液压伺服机构被馈送总和的油压,其是初始施加油压和释放油压的总和,以启动输入离合器的活塞移动和开始接合,以及 油压随后基于预定的压力关系从总和压力逐渐升高。 如果确定未到达预定释放状态,则当检测到启动操作时,基于从供给到液压伺服机构的油压的预定压力关系,油压逐渐升高。
    • 6. 发明授权
    • Control apparatus for automatic transmission
    • 自动变速箱控制装置
    • US5911646A
    • 1999-06-15
    • US774529
    • 1996-12-30
    • Hiroshi TsutsuiKazumasa TsukamotoMasahiro HayabuchiMasaaki NishidaYoshihisa YamamotoAkitomo Suzuki
    • Hiroshi TsutsuiKazumasa TsukamotoMasahiro HayabuchiMasaaki NishidaYoshihisa YamamotoAkitomo Suzuki
    • F16H61/04B60T7/12F16H3/66F16H61/20B60K41/26
    • F16H61/20B60T7/122B60W2550/142B60W30/18118F16H2059/663F16H2061/205F16H2061/207F16H3/66Y10T477/646Y10T477/681
    • When a vehicle is halted with the transmission in a forward drive range, an input clutch is disengaged to enhance the fuel efficiency and, at the same times a hill-hold brake is engaged to prevent the vehicle from rolling backward on a steep up-slope. At that time, the hydraulic pressure P.sub.C-1 of the input clutch C1 is gradually reduced by .DELTA.P.sub.CIR (P.sub.C-1 =P.sub.C-1 -.DELTA.P.sub.CIR) while the hydraulic pressure P.sub.B-1 of the hill-hold brake B1 is increased gradually so as to satisfy an equation P.sub.B-1 =K1+K2 X e where .DELTA.P.sub.cir is a change in hydraulic pressure which is required for gradually disengaging the first clutch C1, K1 is a hill-hold brake pressure at which braking resistance begins, K2 is hill-hold brake pressure producing a fully braked condition, and e is the input/output rotational-speed ratio of a torque converter Subsequently during start of vehicle movement, the hydraulic pressure P.sub.C-1 of the input clutch C1 is gradually increased (P.sub.C-1 =p.sub.C-1 +.DELTA.P.sub.C-1A) while the hydraulic pressure P.sub.B-1 of the hill-hold brake B1 is gradually decreased (P.sub.B-1 ==P.sub.B-1-.DELTA.P.sub.B-1) until the ratio of the rotational speed N.sub.C-1 of the first clutch C1 becomes less than a rotational speed N.sub.C-1E corresponding to the clutch being almost engaged .DELTA.P.sub.C-1A and .DELTA.P.sub.B-1 are incremental values proportional to accelerator depression so that a delay in starting is reduced in accordance with driver demand.
    • 当车辆在前进驱动范围内的变速器停止时,输入离合器被分离以提高燃料效率,并且同时接合山形制动器以防止车辆在陡峭的上坡上向后滚动 。 此时,在山体抱闸B1的液压PB-1逐渐增大的同时,通过DELTA PCIR(PC-1 = PC-1-DELTA PCIR)逐渐减小输入离合器C1的液压PC-1 以满足公式PB-1 = K1 + K2×e,其中DELTA Pcir是逐渐脱离第一离合器C1所需的液压变化,K1是制动电阻开始时的保持制动压力,K2 是抱闸制动压力,产生完全制动状态,e是变矩器的输入/输出转速比。 随后在车辆移动开始时,输入离合器C1的液压PC-1逐渐增加(PC-1 = pC-1 + DELTA PC-1A),而抱抱制动器B1的液压PB-1为 逐渐减小(PB-1 = PB-1-DELTA PB-1),直到第一离合器C1的转速NC-1的比率变得小于对应于几乎接合的离合器的转速NC-1E DELTA PC- 1A和DELTA PB-1是与加速器抑制成比例的增量值,从而根据驾驶员需求减少启动延迟。
    • 7. 发明授权
    • Control system for automatic transmission
    • 自动变速器控制系统
    • US5788603A
    • 1998-08-04
    • US645954
    • 1996-05-10
    • Hiroshi TsutsuiYoshihisa YamamotoMasahiro HayabuchiMasaaki Nishida
    • Hiroshi TsutsuiYoshihisa YamamotoMasahiro HayabuchiMasaaki Nishida
    • F16H3/66F16H59/22F16H59/24F16H59/40F16H59/42F16H59/44F16H59/50F16H61/06F16H61/20F16H61/686
    • F16H61/061F16H61/20F16H2059/706F16H2061/207F16H2312/02F16H2312/022F16H3/66F16H59/22F16H59/24F16H59/40F16H59/42F16H59/44F16H61/686Y10T477/689Y10T477/6895
    • A control system for an automatic transmission operates a clutch in a speed change unit to disconnect a transmission mechanism from a fluid transmission unit during a neutral operating state while the vehicle in a forward gear is held stopped by braking with the throttle fully closed. Reengagement of the clutch such as by depression of accelerator pedal (throttle open), release of the brake pedal, etc., is produced by a gradual increase in oil pressure to the servo operating the clutch to prevent clutch application shock. Wear on the clutch is reduced by abrupt increase of the oil pressure in response to satisfaction of a clutch engagement completion condition based upon input RPM, output RPM and the gear ratio of the target gear. In one embodiment, this abrupt increase occurs immediately after satisfaction of the clutch engagement completion condition when the throttle is open but occurs after elapse of a set time period from satisfaction of the clutch engagement completion condition when the throttle is closed. In a second embodiment when the throttle is closed, an application standby condition based on the input RPM, the output RPM and the gear ratio indicating backward vehicle movement is determined after the clutch engagement completion condition is satisfied. If backward movement is indicated, the abrupt increase in oil pressure is made after a set time period, otherwise the abrupt increase occurs immediately. In a third embodiment, a second clutch engagement completion condition requirement is substituted for the delay of the set time period of the second embodiment to prevent application shock during the clutch engagement.
    • 用于自动变速器的控制系统在变速单元中操作离合器,以在中间运行状态期间将传动机构与流体传动单元断开,同时前进档中的车辆通过在节气门完全关闭时制动而停止。 通过按压加速器踏板(节气门打开),制动踏板释放等离合器的重新接合是通过逐渐增加操作离合器的伺服器的油压来防止离合器施加冲击而产生的。 响应于基于输入RPM,输出RPM和目标齿轮的传动比的离合器接合完成条件的满足,油压的突然增加减小了离合器上的磨损。 在一个实施例中,当节气门打开时满足离合器接合完成状态之后立即发生这种突然增加,但是当节气门关闭时从满足离合器接合完成状态起经过设定时间段之后发生。 在第二实施例中,当节气门关闭时,在满足离合器接合完成条件之后确定基于输入RPM,输出RPM和表示向后车辆移动的齿轮比的应用待机状态。 如果指示向后运动,则在设定的时间段之后进行油压的突然增加,否则立即出现突然增加。 在第三实施例中,第二离合器接合完成条件要求代替第二实施例的设定时间段的延迟,以防止离合器接合期间的施加冲击。
    • 8. 发明授权
    • Drive to neutral shift control system
    • 驱动到空档换档控制系统
    • US5558599A
    • 1996-09-24
    • US431074
    • 1995-04-27
    • Kazumasa TsukamotoMasahiro HayabuchiMasaaki NishidaYoshihisa YamamotoMuneo KusafukaKazuhiro MikamiHiroshi Tsutsui
    • Kazumasa TsukamotoMasahiro HayabuchiMasaaki NishidaYoshihisa YamamotoMuneo KusafukaKazuhiro MikamiHiroshi Tsutsui
    • F16H61/18F16H59/24F16H59/36F16H61/00F16H61/02F16H61/04
    • F16H61/0437F16H2059/6823F16H2061/0258F16H2061/026F16H2061/0488F16H59/24F16H59/36F16H61/0206Y10T477/689Y10T477/6895
    • A control system for an automatic transmission, which receives the rotation of the engine through a fluid coupling, and which has a clutch applied when a forward running range is selected and released when a neutral range is selected and a range selecting mechanism for selecting a range. The control system includes a range detector for detecting the selected range, a hydraulic circuit and a control unit. The hydraulic circuit includes a hydraulic servo which is fed an oil pressure for applying the clutch and a manual valve movable between at least a forward range position for generating a forward range oil pressure and a neutral range position, by operation of the range selecting mechanism. A regulator valve regulates the forward range oil pressure to generate a regulated oil pressure. A solenoid valve is turned ON/OFF by the control unit to generate a signal oil pressure for switching a change-over valve between a first position feeding the forward range oil pressure to the hydraulic servo and a second position feeding the regulated oil pressure to the hydraulic servo. The control unit delays output of the signal solenoid valve, if a switching from the forward running range to the neutral range is detected by the range detector, so that the change-over valve remains in the second position until lapse of a set time period, and is then moved to a first position after the set time period has elapsed.
    • 一种用于自动变速器的控制系统,其通过流体联轴器接收发动机的旋转,并且当选择空档范围时选择和释放正向行驶范围时具有离合器,以及用于选择范围的范围选择机构 。 控制系统包括用于检测选定范围的量程检测器,液压回路和控制单元。 液压回路包括供给用于施加离合器的油压的液压伺服机构,以及通过范围选择机构的动作可以在至少前进范围位置之间移动的手动阀,该手动阀可以产生前进油压和中间档位置。 调节阀调节前进油压以产生调节油压。 电磁阀通过控制单元接通/断开,以产生用于在将前进范围油压提供给第一位置与液压伺服机构之间切换转换阀的信号油压和将调节油压供给到第二位置的信号油压 液压伺服 控制单元延迟信号电磁阀的输出,如果由范围检测器检测到从前进行程到中间范围的切换,则转换阀保持在第二位置直到经过设定的时间段, 然后在经过设定时间段之后移动到第一位置。