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    • 85. 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。
    • 88. 发明授权
    • Control system for linear solenoid valve
    • 线性电磁阀控制系统
    • US5790364A
    • 1998-08-04
    • US648718
    • 1996-05-16
    • Kazuhiro MikamiKenji SuzukiMuneo KusafukaMasayuki SugiuraHiroshi Tsutsui
    • Kazuhiro MikamiKenji SuzukiMuneo KusafukaMasayuki SugiuraHiroshi Tsutsui
    • F15B13/044F16K31/06G05D16/20H01H47/32H01H47/02
    • H01H47/325G05D16/2013
    • The control system for a linear solenoid valve controls output of an oil pressure according to a current value to be fed to the linear solenoid which operates the linear solenoid valve. A solenoid current monitor detects the current value fed to the linear solenoid and an IG voltage monitor detects the voltage level of the battery. A linear solenoid current value setting unit sets a target current value according to a target oil pressure level and a duty ratio setting unit sets a duty ratio for applying the battery voltage to the linear solenoid on the basis of signals coming from the current monitor, the voltage monitor and the current value setting unit. A solenoid driver applies the battery voltage to the linear solenoid for a predetermined period in accordance with the duty ratio set by the duty ratio setting unit. The duty ratio setting unit, in turn, includes: a feedback correction unit for feedback correction of the duty ratio, in accordance with the difference between the current value detected by the monitor and the target current value set by the current value setting unit, so that the current value fed to the linear solenoid approaches the target current value; and a voltage correction unit for further correcting the duty ratio, as previously corrected by the feedback correction unit, on the basis of the voltage level of the battery, as detected by the voltage monitor.
    • 用于线性电磁阀的控制系统根据当前值来控制油压的输出,以将其输送到操作线性电磁阀的线性螺线管。 电磁线圈电流监测器检测馈送到线性电磁线圈的电流值,IG电压监视器检测电池的电压电平。 线性电磁线圈电流值设定单元根据目标油压水平设定目标电流值,占空比设定单元基于来自电流监视器的信号,设定将电池电压施加到线性电磁阀的占空比, 电压监视器和当前值设置单元。 螺线管驱动器根据由占空比设定单元设定的占空比将电池电压施加到线性螺线管一段规定时间。 负载比设定单元又包括:反馈校正单元,用于根据由监视器检测的电流值与由当前值设定单元设定的目标电流值之间的差异,对占空比进行反馈校正,因此, 馈送到线性电磁阀的电流值接近目标电流值; 以及电压校正单元,用于如先前由反馈校正单元校正的,根据电压监视器检测到的电池电压水平进一步校正占空比。
    • 89. 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。