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    • 3. 发明申请
    • FAILURE DETECTION DEVICE AND METHOD FOR AUTOMATIC TRANSMISSION
    • 故障检测装置和自动传输方法
    • US20080064568A1
    • 2008-03-13
    • US11853181
    • 2007-09-11
    • Takateru KAWAGUCHIShinya Mochiyama
    • Takateru KAWAGUCHIShinya Mochiyama
    • F16H61/12
    • F16H61/12F16H61/686F16H2061/1208F16H2061/1272Y10T477/6934
    • There is provided a failure detection device for an automatic transmission having a one-way clutch to disable engine braking in a given gear stage and an engine braking friction element to lock the one-way clutch and switching between a first shift mode in which the engine braking friction element is disengaged in the given gear stage and a second shift mode in which the engine braking friction element is engaged in the given gear stage. The failure detection device includes a failure detection unit that detects a failure in the automatic transmission based on a deviation between actual and target transmission gear ratios during non-shift operation of the automatic transmission and a prohibition unit that prohibits operation of the failure detection unit until a predetermined time has elapsed from switching of the automatic transmission from the first shift mode to the second shift mode.
    • 提供了一种用于自动变速器的故障检测装置,其具有单向离合器以在给定的齿轮级中禁止发动机制动,以及发动机制动摩擦元件以锁定单向离合器并在第一变速模式之间切换,其中发动机 制动摩擦元件在给定的齿轮级中分离,第二变速模式在发动机制动摩擦元件接合在给定的齿轮级中。 故障检测装置包括故障检测单元,该故障检测单元基于自动变速器的非换档操作期间的实际和目标变速比之间的偏差来检测自动变速器中的故障,以及禁止故障检测单元的操作的禁止单元,直到 从自动变速器从第一变速模式切换到第二变速模式已经经过了预定时间。
    • 4. 发明申请
    • FAIL DETECTING APPARATUS FOR AUTOMATIC TRANSMISSION
    • 用于自动传输的故障检测装置
    • US20070049457A1
    • 2007-03-01
    • US11466101
    • 2006-08-21
    • Tetsuya SATOTakateru KAWAGUCHI
    • Tetsuya SATOTakateru KAWAGUCHI
    • F16H59/60
    • F16H61/12F16H3/663F16H59/68F16H61/686F16H2059/683F16H2061/1208F16H2061/1284F16H2200/0052F16H2200/2007F16H2200/2023Y10S477/906Y10T477/65
    • There is provided a fail detecting apparatus for an automatic transmission which is capable of quickly detecting a failure of an oil pressure switch with accuracy. In addition to an oil pressure switch state determining process carried out while a vehicle is running, the state of an oil pressure switch is detected at the time of turning-on of an ignition switch before an engine is started, and if the oil pressure switch has continued to be ON until a timer value becomes equal to or greater than a predetermined value, it is determined that the oil pressure switch has failed. Since the state of the oil pressure switch is determined before the engine is started, i.e. in the state in which no oil pressure has been generated, whether the oil pressure switch is normal or has failed can be determined with high accuracy irrespective of which range is currently selected in the automatic transmission. Also, while the vehicle is running, the state of the oil pressure switch is detected when the range is switched to the P, R, or N range, and therefore it is possible to correctly determine whether the oil pressure switch for the friction element which is engaged only in the D range is normal or has failed.
    • 提供了一种用于自动变速器的故障检测装置,其能够精确地快速检测油压开关的故障。 除了在车辆行驶时进行的油压开关状态判定处理之外,在发动机起动前点火开关接通时检测到油压开关的状态,如果油压开关 直到定时器值变得等于或大于预定值,则确定油压开关已经失败。 由于油压开关的状态是在发动机启动之前确定的,即在没有产生油压的状态下,油压开关是正常还是有故障的状态都可以高精度地确定,而不论哪个范围是 目前在自动变速箱中选择。 此外,当车辆行驶时,当将范围切换到P,R或N范围时,检测到油压开关的状态,因此可以正确地确定摩擦元件的油压开关是否 只在D范围内正常或失败。
    • 5. 发明授权
    • Step automatic transmission
    • 步进自动变速箱
    • US07980981B2
    • 2011-07-19
    • US11962469
    • 2007-12-21
    • Takateru KawaguchiYoshihide Shinso
    • Takateru KawaguchiYoshihide Shinso
    • F16H31/00G06F7/00G06F17/00G06F7/70
    • F16H61/12F16H59/48F16H61/686F16H2061/0209F16H2061/1204F16H2061/1284F16H2200/0056F16H2200/2012
    • An automatic transmission of a motor vehicle, comprising a plurality of planetary gear units; a plurality of frictional elements, the frictional elements assuming engaged/disengaged condition upon receiving a ratio change instruction thereby to establish a desired speed of the transmission with the aid of the planetary gear units; a deceleration detecting means that detects a deceleration of the motor vehicle; a gear ratio detecting means that detects an actual gear ratio that is actually established in the transmission; and an interlock judgment means that judges whether or not the transmission is subjected to an interlock, the interlock being a condition wherein upon receiving the ratio change instruction, at least one of the frictional elements is brought into unintended engagement. The interlock judgment means is configured to carry out judgment of the interlock by analyzing a deceleration of the vehicle and a relation between a gear ratio intended by the ratio change instruction and an actual gear ratio actually established by the transmission while the transmission is not under a ratio change.
    • 一种机动车辆的自动变速器,包括多个行星齿轮单元; 多个摩擦元件,所述摩擦元件在接收到比率改变指令时呈现接合/分离状态,从而借助于所述行星齿轮单元建立所述变速器的期望速度; 减速检测装置,其检测所述机动车辆的减速度; 齿轮比检测装置,其检测在所述变速器中实际建立的实际变速比; 以及联锁判断装置,其判断变速器是否经受互锁,所述互锁是其中一旦接收到所述比率改变指令,所述摩擦元件中的至少一个进入非预期的接合状态。 互锁判断装置被配置为通过分析车辆的减速度和通过比率改变指令所期望的变速比与由变速器实际建立的实际变速比之间的关系来执行互锁的判断,同时变速器不在 比例变化。
    • 7. 发明授权
    • Lockup control device
    • 锁定控制装置
    • US06482126B2
    • 2002-11-19
    • US09863070
    • 2001-05-22
    • Takateru Kawaguchi
    • Takateru Kawaguchi
    • B60K4102
    • F16H61/143F16H2061/0087F16H2061/145F16H2061/146Y10T477/6414Y10T477/6422Y10T477/755Y10T477/78
    • A control unit controls a lockup duty ratio to be maintained at a first duty ratio, which is the minimum value within such a range as not to slip a lockup clutch, during a period of time since a decision is made to perform a shifting operation until an actual shifting operation is started. The control unit then lowers the lockup duty ratio to a corrected (learned) second duty ratio and gradually lowers the lockup duty ratio from the second duty ratio at a predetermined rate of change so that a slip revolutionary speed can be equal to a target slip revolutionary speed when the shifting operation is finished. Alternatively, the control unit corrects the rate of change while maintaining the second duty ratio at a uniform value so that the slip revolutionary speed can be equal to the target slip revolutionary speed when the shifting operation is finished.
    • 控制单元控制锁定占空比以在作出执行换档操作的时间段内的第一占空比下保持为第一占空比,其是在不滑动锁止离合器的范围内的最小值,直到 开始实际的换档操作。 控制单元然后将锁定占空比降低到校正(学习)的第二占空比,并以预定的变化率逐渐降低锁定占空比与第二占空比,使得滑动革命速度可以等于目标滑动革命 换档操作结束时的速度。 或者,控制单元在将第二占空比保持在均匀值的同时校正变化率,使得当变速操作结束时,滑动革命速度可以等于目标滑动革命速度。