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    • 6. 发明申请
    • UTILITY VEHICLE WITH A CONTINUOUSLY VARIABLE TRANSMISSION HAVING A SYSTEM FOR SELECTIVELY ESTABLISHING A FIXED MAXIMUM TRANSMISSION RATIO
    • 具有连续可变传输的实用车辆,用于选择性地建立固定的最大传输比率
    • US20140332307A1
    • 2014-11-13
    • US14273134
    • 2014-05-08
    • Jamie R. LarsonJeremy A. Fohrenkamm
    • Jamie R. LarsonJeremy A. Fohrenkamm
    • F16H9/12B60K17/08
    • B60K17/08F16H9/18F16H55/563F16H63/065F16H2061/66213
    • A continuously variable transmission for a vehicle comprises a primary pulley, a secondary pulley, and a belt entrained around both pulleys in an opposite manner between the fixed and movable sheaves thereof. One pulley carries a selectively deployable stop that may be placed into position to mechanically limit the range of motion between the fixed and movable sheaves. This establishes an actual maximum transmission ratio that is larger than the nominal minimum transmission ratio but smaller than the nominal maximum transmission ratio achievable by the transmission during normal operation thereof. When such a transmission is used on a utility vehicle attached to a substance dispensing applicator operatively driven by the vehicle's engine, the application rate stays substantially constant despite changes in engine speed when the user keeps the transmission upshifted to the actual maximum transmission ratio set by the position of the deployed stop.
    • 用于车辆的无级变速器包括主滑轮,次滑轮和在两个滑轮周围夹带的皮带,其在固定滑轮和可动滑轮之间以相反的方式。 一个滑轮承载可选择地展开的止挡件,其可以放置在适当位置以机械地限制固定和可动滑轮之间的运动范围。 这确定了实际的最大传动比,其大于标称最小传动比,但小于在其正常操作期间由变速器可实现的标称最大传动比。 当这种变速器被用在附着在由车辆发动机操作地驱动的物料分配施加装置的多功能车辆上时,当使用者将变速器保持高速转换到由车辆发动机设定的实际最大传动比时,施加率保持基本恒定, 部署停止位置。
    • 7. 发明公开
    • Hydrostatic transmission control system and method for a tractor or utility vehicle
    • 特别是在控制商用车辆液压变速器的系统和装置。在拖拉机
    • EP1275552A3
    • 2005-05-25
    • EP02014766.6
    • 2002-07-04
    • DEERE & COMPANY
    • Evans, Mark D.Burgart, Joseph G.
    • B60K41/16B62D49/00F16H61/38F16H59/18F16H61/40
    • F16H61/47B60K17/10B60Y2200/22B60Y2200/221F16H39/14F16H59/18F16H61/435F16H61/46F16H2059/0226F16H2061/6611F16H2061/66213F16H2302/04
    • A control system (16) for a utility vehicle transmission provides for operator selection of vehicle "aggressiveness," or rates of acceleration in response to operator command. The aggressiveness of a vehicle's performance can be controlled by modulating control signals to proportional control valves, which determine the transmission acceleration, according to two or more electrical ramp-up (or ramp-down) profiles, in response to an operator's acceleration command (or deceleration command). The transmission control system (16) includes a controller (52), directional switches and electro-hydraulic valves (106, 108) which control hydraulic pressure in the servo control system of a hydrostatic transmission (26). The operator is provided with a two-position set switch (56). With the set switch (56) in the less aggressive position, in response to an operator's command, the software in the controller (52) provides a relatively slow current ramp to energize the control valves (106, 108). With the switch (56) in the more aggressive position, the current ramps and resultant pressure ramps are faster, thus causing more aggressive transmission operation for the hydrostatic transmission (26).
    • 一种控制系统(16),用于多用途车辆变速器提供对车辆的操作者选择“攻击性”,或响应于操作员命令加速度的速率。 的车辆的性能的侵蚀性可通过调节控制信号,以比例控制阀,该阀确定性矿传输加速度,雅丁到两个或多个电气斜坡上升(或斜坡下降)简档,(响应于在操作员的加速指令来控制或 减速命令)。 变速器控制系统(16)包括控制器(52),定向开关和电动液压阀(106,108),控制在一个静液压传动装置(26)的伺服控制系统的液压压力。 操作者设置有两位开关组(56)。 在响应在较不积极的位置设定开关(56)在操作者的命令,在控制器中的软件(52)提供了相对慢电流斜坡以激励控制阀(106,108)。 在更积极的位置时,开关(56),电流斜坡和产生的压力斜坡速度更快,从而导致更积极的发送操作的静液压传动(26)。
    • 10. 发明授权
    • Method for setting a multiplication of a continuously variable automatic transmission equipped with a variator
    • 用于设置配备有变换器的无级变速自动变速器的乘法的方法
    • US06522965B1
    • 2003-02-18
    • US09743586
    • 2001-01-11
    • Armin Gierling
    • Armin Gierling
    • B60K4128
    • F16H61/66254B60W2520/26F16H2059/087F16H2059/506F16H2061/66213Y10T477/619Y10T477/6203
    • A method for setting a multiplication of a continuously variable automatic transmission (CVT transmission) comprises the following steps: a) it is determined in a test module (M1, M1′) whether an operating situation is present in which a program module (M2, M2′) for adapting an existing transmission multiplication (i_v_ist) to a vehicle speed (v_F) or to an output rotational speed (n_ab) of the transmission is activated; in the negative a transmission specified multiplication (i_v_stratagy, i_v_start) is determined as new transmission specified multiplication (i_v_soll) from a characteristic field for a regular driving strategy; b) it is tested in the program module (M2, M2′) whether the vehicle speed (v_F) or the output rotational speed (n_ab) of the transmission is higher than a predetermined limiting value (v_F_limit, n_ab_limit); c) in the case of a positive inquiry, a predefined transmission specified multiplication (i_v_ABS, i_start_w) assigned to the determined operating state is set as new transmission specified multiplication (i_v_soll) when the starting clutch is activated; in the case of a negative inquiry, a processing function (F4, F17) is begun in order at least partly open a starting clutch and the transmission specified multiplication (i_v_ABS, i_start_w) assigned to the determined operating state is set as a new transmission specified multiplication (i_v_soll).
    • 一种用于设定无级变速自动变速器(CVT变速器)的乘法的方法包括以下步骤:a)在测试模块(M1,M1')中确定是否存在程序模块(M2, M2)用于使现有的传输乘法(i_v_ist)适应车辆速度(v_F)或传输的输出转速(n_ab); 在负的情况下,根据用于常规驾驶策略的特征场,将传输指定乘法(i_v_stratagy,i_v_start)确定为新的传输指定乘法(i_v_soll); b)在程序模块(M2,M2')中测试车辆 传输的速度(v_F)或输出转速(n_ab)高于预定的限制值(v_F_limit,n_ab_limit); c)在正向询问的情况下,指定给(i_v_ABS,i_start_w) 当启动离合器被激活时,将确定的操作状态设置为新的传输指定乘法(i_v_soll); 在负查询的情况下,开始处理功能(F4,F17),以至少部分地打开起动离合器,并将分配给所确定的运行状态的传输指定乘法(i_v_ABS,i_start_w)设置为指定的新传输 乘法(i_v_soll)。