Load control structure for work vehicle
    1.
    发明授权
    Load control structure for work vehicle 有权
    工作车辆负载控制结构

    公开(公告)号:US07469534B2

    公开(公告)日:2008-12-30

    申请号:US11520457

    申请日:2006-09-13

    Abstract: A load control structure for a work vehicle comprises: a device for detecting operating position of a manually operated speed change operating element; an engine load detection device for detecting load on an engine of the work vehicle; a swash plate position detecting device for detecting an operating position of a swash plate of a variable displacement pump of a hydrostatic continuously variable speed change device; a pump operating device for steplessly operating the swash plate of the variable displacement pump; a motor operating device for operating a swash plate of a variable displacement motor of the hydrostatic continuously variable speed change device between at least two speed change positions including a higher speed position and a lower speed position; a control device for controlling the operations of the pump operating device and the motor operating device. The control device has a automatic pump swash plate control device for controlling the operation of the pump operating device, based on detected information from the load detection device and detected information from the swash plate position detecting device, such that the greater an engine load is, greater is the extent to which the swash plate of the variable displacement pump is operated to a low speed side; and a motor swash plate control device for controlling the motor operating device so as to change the position of the swash plate of the variable displacement motor between the at least two speed change positions.

    Abstract translation: 一种用于作业车辆的负载控制结构包括用于检测手动操作的变速操作元件的操作位置的装置; 发动机负载检测装置,用于检测作业车辆的发动机的负荷; 旋转斜盘位置检测装置,用于检测静液压无级变速装置的可变排量泵的斜板的操作位置; 用于无级操作可变排量泵的斜盘的泵操作装置; 电动机操作装置,用于在包括较高速度位置和较低速度位置的至少两个变速位置之间操作所述静液压无级变速装置的可变排量电动机的斜盘; 用于控制泵操作装置和马达操作装置的操作的控制装置。 控制装置具有自动泵斜盘控制装置,用于基于来自负载检测装置的检测信息和来自斜盘位置检测装置的检测信息来控制泵操作装置的操作,使得发动机负荷越大, 变容量泵的旋转斜盘操作到低速侧的程度越大; 以及电动机斜盘控制装置,用于控制电动机操作装置,以便在至少两个变速位置之间改变可变容量电动机的斜板的位置。

    Apparatus for controlling automatic transmission
    3.
    发明授权
    Apparatus for controlling automatic transmission 失效
    用于控制自动变速器的装置

    公开(公告)号:US5443427A

    公开(公告)日:1995-08-22

    申请号:US80859

    申请日:1993-06-22

    Abstract: An automatic transmission on an automobile has an input shaft, an output shaft, a plurality of power transmitting paths disposed between the input and output shafts for establishing respective gear positions, and a plurality of engaging elements for selecting one of the power transmitting paths at a time. A shift controller disengages a previous-position engaging element and engages a next-position engaging element to switch from one of the power transmitting paths to another for thereby effecting a shift from a previous gear position to a next gear position. The shift controller provides a plurality of previous-position stages for controlling the previous-position engaging element with respective different characteristics to vary forces to disengage the previous-position engaging element in each of the gear positions, and a plurality of next-position stages for controlling the next-position engaging element with respective different characteristics to vary forces to engage the next-position engaging element in each of the gear positions. The shift controller executes the previous-position stages and the next-position stages to effect a shift between gear positions according to a change in the rotational speed of the input shaft, and executes all or selected ones of the previous-position stages and the next-position stages successively in order.

    Abstract translation: 汽车上的自动变速器具有输入轴,输出轴,设置在输入轴和输出轴之间的多个动力传递路径,用于建立相应的档位;以及多个啮合元件,用于选择一个动力传递路径 时间。 换档控制器脱离先前位置的接合元件并且接合下一位置接合元件以从其中一个动力传递路径切换到另一个,从而实现从前一个档位到下一个档位的换档。 换档控制器提供多个先前位置级,用于控制具有相应不同特性的先前位置接合元件以改变力以使先前位置接合元件在每个档位中脱离,以及多个下一位置级,用于 控制具有相应不同特性的下一位置接合元件以改变力以将下一位置接合元件接合在每个档位中。 变速控制器执行先前位置级和下一级位,以根据输入轴的转速的变化来实现档位之间的移动,并执行所有或选择的先前位置级和下一级 依次顺序排列。

    Cruise control apparatus for a vehicle
    6.
    发明授权
    Cruise control apparatus for a vehicle 失效
    用于车辆的巡航控制装置

    公开(公告)号:US5251138A

    公开(公告)日:1993-10-05

    申请号:US789664

    申请日:1991-11-08

    CPC classification number: B60K31/047 B60W2540/10 B60W2710/0605

    Abstract: A cruise control apparatus for a vehicle includes an automatic transmission with a predetermined gear shift characteristic for automatically shifting a gear ratio based on a relationship between the speed of the vehicle and the opening degree of a throttle valve. The apparatus is able to prevent an unwanted gear shift in the automatic transmission during cruise control without requiring a throttle sensor output indicative of the opening degree of a throttle valve. A vehicle speed sensor senses the actual speed of the vehicle and generates a corresponding output signal. A cruise control instructor generates an instruction signal for instructing a specific one among various cruise control modes. A cruise controller performs cruise control on the vehicle based on the actual vehicle speed as sensed by a vehicle speed sensor and the output signal from the cruise control instructor. An actuator is operatively connected with the throttle valve for driving it in accordance with the output signal from the cruise controller. An actuator-displacement detector is responsive to the output signals from the cruise control instructor and the cruise controller for successively detecting a displacement of the actuator. The detector compares the thus detected displacement of the actuator with a predetermined threshold value for the current gear ratio of the transmission, generate an output signal as a result of the comparison and supply it to the cruise controller, whereby the cruise controller controls the displacement of the actuator so as not to cause a gear shift in the transmission.

    Abstract translation: 用于车辆的巡航控制装置包括具有预定换档特性的自动变速器,用于根据车辆速度与节流阀的开度之间的关系来自动地变速。 该装置能够防止在巡航控制期间自动变速器中的不期望的换档,而不需要指示节气门的开度的节气门传感器输出。 车速传感器检测车辆的实际速度并产生相应的输出信号。 巡航控制指示器产生用于指示各种巡航控制模式中的特定一个的指令信号。 巡航控制器基于车速传感器感测到的实际车速和来自巡航控制教练的输出信号,对车辆进行巡航控制。 致动器与节流阀可操作地连接,用于根据来自巡航控制器的输出信号进行驱动。 致动器位移检测器响应来自巡航控制指导员和巡航控制器的输出信号,以连续检测致动器的位移。 检测器将由此检测的致动器的位移与传动的当前齿轮比的预定阈值进行比较,作为比较的结果产生输出信号并将其提供给巡航控制器,由此巡航控制器控制 致动器,以便不会在变速器中造成变速。

    Semiautomatic transmission
    7.
    发明授权
    Semiautomatic transmission 失效
    半自动传输

    公开(公告)号:US4776239A

    公开(公告)日:1988-10-11

    申请号:US936345

    申请日:1986-11-28

    Abstract: The present invention relates to a semiautomatic transmission for vehicles, construction machines or similar equipment. In one embodiment of the invention, the semiautomatic transmission comprises a synchro-mesh transmission which has an electrically controlled gear shift mechanism, an electric control unit, for controlling the gear shift mechanism, and sensors, for measuring the torque of the engine, the rotating speed of the output shaft of the transmission and the driving speed. The sensors are arranged to transmit corresponding to measured quantities to the electric control unit for selecting a gear suiting the actual driving situation. Between the output shaft, of the transmission and the drive shaft, with which the power is transmitted to the drive gear, there is, in accordance with the invention, a bidirectionally engaging overrunning clutch to connect shaft, with each other. The engaging circuit of the transmission is an electric power circuit that is opened and closed by the accelerator pedal of the engine or with a similar power regulator.

    Abstract translation: PCT No.PCT / FI86 / 00036 Sec。 一九八六年十一月二十八日 102(e)1986年11月28日PCT PCT申请日1986年4月2日PCT公布。 出版物WO86 / 06332 1986年11月6日。本发明涉及一种车辆,建筑机械或类似设备的半自动变速器。 在本发明的一个实施例中,半自动变速器包括同步啮合变速器,其具有电控变速机构,用于控制变速机构的电气控制单元和用于测量发动机转矩的传感器,旋转 变速器输出轴的转速和行驶速度。 传感器被布置为将相应于测量的数据传送到电气控制单元,用于选择适合实际驾驶状况的档位。 在传动装置的输出轴与驱动轴之间传递动力的驱动轴之间,根据本发明,双向啮合的超越离合器将轴彼此连接。 变速器的接合电路是由发动机的加速器踏板或类似的功率调节器打开和关闭的电力回路。

    Device for controlling 4wd vehicle central differential restriction
device according to vehicle road speed and engine load, and method of
operation thereof
    9.
    发明授权
    Device for controlling 4wd vehicle central differential restriction device according to vehicle road speed and engine load, and method of operation thereof 失效
    根据车辆道路速度和发动机负荷控制4wd车辆中央差速器限制装置的装置及其操作方法

    公开(公告)号:US4751856A

    公开(公告)日:1988-06-21

    申请号:US50490

    申请日:1987-05-18

    Abstract: In a four wheel drive vehicle, a central differential device receives rotational power from an engine and provides it to the combination of the front wheels of the vehicle and also to the combination of the rear wheels of the vehicle. This central differential device includes a device for selectively restricting its operation. A control device is provided for this central differential device operation restriction device, and includes: (a) a means for detecting a condition representative of the road speed of the vehicle and of the load on the engine; and (b) a means for controlling the device for selectively restricting the operation of the central differential device, so that the operation of the central differential device is less restricted than otherwise, when the vehicle speed is relatively high and also the engine output is not relatively high. Various specializations of this control device, and also the method of operation thereof, are also disclosed.

    Abstract translation: 在四轮驱动车辆中,中央差速装置接收来自发动机的旋转动力并将其提供给车辆的前轮的组合以及车辆的后轮的组合。 该中央差速装置包括用于选择性地限制其操作的装置。 为该中央差速装置运行限制装置设置控制装置,具备:(a)检测表示车辆的道路速度和发动机的负荷的状况的装置; 和(b)用于控制装置以选择性地限制中央差速装置的操作的装置,使得中央差速装置的操作比其它方式更少地受到限制,当车速相对较高并且发动机输出不是 比较高 还公开了该控制装置的各种专业化,以及其操作方法。

    Intelligent optimum-gear indication system
    10.
    发明授权
    Intelligent optimum-gear indication system 失效
    智能最佳档位指示系统

    公开(公告)号:US4731727A

    公开(公告)日:1988-03-15

    申请号:US734264

    申请日:1985-05-08

    Abstract: A method and a circuit for determining the optimum gear, in terms of fuel consumption, of a motor vehicle drive is proposed, in which after upshifting, a driving power sufficient for accelerating the vehicle is to be made available regardless of such power parameters as total vehicle weight, roadway grades and the like and also regardless of the gear ratios of the gear steps. To this end, during driving, the gear ratios of the gear steps are ascertained by comparing the speeds (n, n.sub.1) before and after the transmission (12). Furthermore, these speed values (n, n.sub.1) as well as the gas pedal position (.phi.) are continuously stored briefly in memory during the drive, and a standardized power is ascertained based on the change in the driving speed (n.sub.1). After a gear shifting operation, the newly ascertained standardized power is compared with the standardized power ascertained prior to shifting, and if the new standardized power is the same or greater, the values for the driving speed (n.sub.1) and gas pedal position (.phi.) measured prior to the upshifting are recorded in a threshold value memory (24). An upshifting indication is always effected whenever the instantaneous measured values (n.sub.1, .phi.) exceed the stored threshold values in the direction of an unfavorable operating range in terms of fuel consumption. The method is applicable to both Diesel and gasoline engines as well as to large and small motors and to any arbitrary, but fixed, gear step ratios.

    Abstract translation: PCT No.PCT / DE84 / 00170 Sec。 371日期1985年5月8日 102(e)日期1985年5月8日PCT提交1984年8月30日PCT公布。 第WO85 / 01256号公报 日期:1985年3月28日。提出了一种用于确定机动车辆驱动器的燃料消耗方面的最佳齿轮的方法和电路,其中,在升档之后,将提供足以加速车辆的驱动力 而不管总车辆重量,车道等级等的功率参数,以及齿轮档的齿轮比也是如此。 为此,在驱动期间,通过比较变速器(12)之前和之后的速度(n,n1)来确定齿轮级的齿轮比。 此外,这些速度值(n,n1)以及加速踏板位置(phi)在驱动期间短暂地连续存储在存储器中,并且基于驱动速度的变化来确定标准化功率(n1)。 在变速操作之后,将新确定的标准功率与变速前确定的标准功率进行比较,如果新的标准功率相同或更大,则驱动速度(n1)和加速踏板位置(phi) 在升档之前测量的记录在阈值存储器(24)中。 每当瞬时测量值(n1,phi)在燃料消耗方面超过不利操作范围方向上存储的阈值时,总是执行升档指示。 该方法适用于柴油和汽油发动机以及大型和小型电动机以及任何任意但固定的齿轮比。

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