Control apparatus and method for automatic transmission
    31.
    发明授权
    Control apparatus and method for automatic transmission 有权
    自动变速箱控制装置及方法

    公开(公告)号:US08364359B2

    公开(公告)日:2013-01-29

    申请号:US12712454

    申请日:2010-02-25

    IPC分类号: G06F7/00 G06F17/00

    摘要: In control apparatus and method for an automatic transmission, a gear shift state of a stepwise variable transmission mechanism is controlled to a target gear shift state by releasing a first engagement section according to a reduction in a capacity of the first engagement section and, simultaneously, by engaging a second engagement section according to an increase in the capacity of the second engagement section, in accordance with a torque inputted to the stepwise variable transmission mechanism and, during an inertia phase, either one of the first and second engagement sections functions as a gear shift state control side engagement section and the capacity of a gear shift state non-control side engagement section which is the other engagement section is increased when determining that it is impossible to make the gear shift state follow up the target gear shift state at the gear shift state control side engagement section.

    摘要翻译: 在自动变速器的控制装置和方法中,通过根据第一接合部的容量的减小来释放第一接合部,将逐级变速传动机构的变速状态控制为目标变速状态, 通过根据输入到阶梯式变速机构的扭矩,根据第二接合部的容量的增加来接合第二接合部,并且在惯性阶段期间,第一和第二接合部中的任一个作为 换档状态控制侧接合部和作为另一接合部的变速状态非控制侧接合部的容量在判定为不能使变速状态跟随目标变速状态时增加 换挡状态控制侧接合部。

    Hydraulic clutch control of vehicle power train
    35.
    发明授权
    Hydraulic clutch control of vehicle power train 有权
    汽车动力传动系液压离合器控制

    公开(公告)号:US07043347B2

    公开(公告)日:2006-05-09

    申请号:US10648826

    申请日:2003-08-27

    IPC分类号: G06F10/00 F16H31/00

    摘要: A hydraulic clutch transmits driving torque in a power train of a vehicle. An oil pressure supply unit supplies oil pressure for engagement to the clutch and a controller controls the unit. The controller causes the unit, prior to engagement of the clutch, to precharge the interior of the clutch with hydraulic fluid. The controller counts an elapsed time since the last release of the clutch and shortens the precharge period as the elapsed time decreases, thereby optimizing the precharge state of the clutch.

    摘要翻译: 液压离合器在车辆的动力传动系中传递驱动扭矩。 油压供应单元提供用于接合到离合器的油压,并且控制器控制该单元。 在离合器接合之前,控制器使该单元在液压流体中对离合器的内部进行预充电。 控制器对离合器的最后一次释放后的经过时间进行计数,并且随着经过时间的减少而缩短预充电期间,从而优化离合器的预充电状态。

    Control device for controlling V-belt continuously variable transmission
    36.
    发明申请
    Control device for controlling V-belt continuously variable transmission 有权
    用于控制V型带无级变速器的控制装置

    公开(公告)号:US20050070402A1

    公开(公告)日:2005-03-31

    申请号:US10947201

    申请日:2004-09-23

    摘要: A control device for controlling a continuously variable transmission (5) is disclosed. The control device has an oil pressure control unit (100) which supplies an oil pressure to a primary pulley (10) and secondary pulley (11) based on a command signal indicative of a target speed-reduction ratio, a sensor (26) which detects a rotation speed (Np1) of the primary pulley (26), and a controller (20) which transmits the command signal indicative of the target speed-reduction ratio to the oil pressure control unit (100). The controller is programmed to set the target speed-reduction ratio to a first speed-reduction ratio (R1); calculate a first predetermined rotation speed (N1) of the primary pulley at which the V-belt reaches a first limiting temperature (T1) at the first speed-reduction ratio (R1); calculate a first elapsed time after the detected rotation speed (Np1) of the primary pulley exceeds the first predetermined rotation speed (N1); maintain the first speed-reduction ratio (R1) when the first elapsed time is equal to or less than a first predetermined time; and set the target speed-reduction ratio to a second speed-reduction ratio (R2) smaller than the first speed-reduction ratio (R1) when the first elapsed time exceeds the first predetermined time. At the second speed-reduction ratio (R2), the temperature of the V-belt should become equal to or less than the first limiting temperature (T1) throughout the permitted rotation speed region of the primary pulley. Thus, starting acceleration performance of the continuously variable transmission is enhanced.

    摘要翻译: 公开了一种用于控制无级变速器(5)的控制装置。 控制装置具有油压控制单元(100),其基于表示目标减速比的指令信号向主滑轮(10)和次滑轮(11)供给油压;传感器(26),其 检测主滑轮(26)的转速(Np1),以及向油压控制单元(100)发送表示目标减速比的指令信号的控制器(20)。 控制器被编程为将目标减速比设置为第一减速比(R1); 以所述第一减速比(R1)计算所述V型带达到第一极限温度(T1)的所述主带轮的第一预定转速(N1); 计算出初级带轮的检测转速(Np1)超过第一预定转速(N1)之后的第一经过时间; 当第一经过时间等于或小于第一预定时间时,保持第一减速比(R1); 并且当所述第一经过时间超过所述第一预定时间时,将所述目标减速比设定为小于所述第一减速比(R1)的第二减速比(R2)。 在第二减速比(R2)下,V带的温度在初级带轮的整个允许转速区域内应变得等于或小于第一极限温度(T1)。 因此,提高了无级变速器的起动加速性能。

    Linear solenoid valve control device

    公开(公告)号:US20050028866A1

    公开(公告)日:2005-02-10

    申请号:US10912281

    申请日:2004-08-06

    摘要: Disclosed is a control device for controlling a two-way linear solenoid valve (60) including a pressure regulating port (60p) which communicates with a hydraulic circuit side, a drain port (60d) which communicates with a drain side, a plunger (61) which controls the state of communication between the pressure regulating port and drain port, and a coil (70) which drives the plunger in accordance with an exciting current. The control device has a current generator (65) which supplies the coil with the exciting current corresponding to a duty signal; and a microcomputer (1). The microcomputer determines whether or not a preset foreign matter removal starting condition for removing foreign matter accumulated in the ports has been established. When the foreign matter removal starting condition is established, the microcomputer sets a variation pattern for a current command value in the form of a rectangular wave having a preset maximum current command value (A1) and a preset minimum current command value (A0), and transmit to the current generator a first duty signal corresponding to the maximum current command value and a second duty signal corresponding to the minimum current command value. The microcomputer further determines whether or not a preset foreign matter removal completion condition has been established. When the foreign matter removal completion condition is established, the microcomputer terminates the setting of the rectangular wave variation pattern.

    Apparatus and method for monitoring revolution speed value detected by
means of revolution speed sensor to determine occurrence of abnormality
in revolution speed sensor applicable to continuously variable
transmission for vehicle
    38.
    发明授权
    Apparatus and method for monitoring revolution speed value detected by means of revolution speed sensor to determine occurrence of abnormality in revolution speed sensor applicable to continuously variable transmission for vehicle 失效
    用于监测通过转速传感器检测的转速值的装置和方法,以确定适用于车辆无级变速器的转速传感器中的异常发生

    公开(公告)号:US6073072A

    公开(公告)日:2000-06-06

    申请号:US006386

    申请日:1998-01-13

    摘要: Described are apparatus and method for monitoring revolution speed values detected by corresponding revolution speed sensors too determine whether at least any one of an engine revolution speed sensor, a continuously variable transmission input axle revolution speed sensor, and a continuously variable transmission output axle revolution speed sensor has failed according to detected values of the engine revolution speed sensor, the input axle revolution speed sensor, and the output axle revolution speed sensor and a detected value of an instantaneous gear shift ratio when a lock-up mechanism is in a lock-up state. If all of three formulae on predetermined correlations are established, all of the sensors are determined to be normally operated. If any one or two of the three formulae are not established, the failure one of the three sensors is identified. The three correlation formulae are based as follows: 1) N.sub.E =N.sub.PRI ; 2) N.sub.PRI =N.sub.SEC .times.CN; and 3) N.sub.E =N.sub.PRI .times.C.sub.N, wherein N.sub.E denotes the engine revolution speed, N.sub.PRI denotes the input axle revolution speed, C.sub.N denotes the detected instantaneous gear shift ratio, and N.sub.SEC denotes the detected output axle revolution speed.

    摘要翻译: 描述了用于监测由相应的转速传感器检测的转速值的装置和方法,其也确定发动机转速传感器,无级变速器输入轴转速传感器和无级变速器输出轴转速传感器中的至少一个 根据发动机转速传感器,输入轴转速传感器和输出轴转速传感器的检测值以及当锁定机构处于锁止状态时的瞬时变速比的检测值而失败 。 如果建立了关于预定相关性的三个公式,则所有传感器被确定为正常操作。 如果没有建立三个公式中的任何一个或两个,则识别三个传感器中的故障之一。 三个相关公式如下:1)NE = NPRI; 2)NPRI = NSECxCN; 和3)NE = NPRIxCN,其中NE表示发动机转速,NPRI表示输入轴转速,CN表示检测到的瞬时变速比,NSEC表示检测到的输出轴转速。