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    • 52. 发明授权
    • Speed control structure and method for work vehicle
    • 工作车辆速度控制结构及方法
    • US08206264B2
    • 2012-06-26
    • US13179082
    • 2011-07-08
    • Eiji NishiKeishiro NishiAtsushi ShinkaiYasunobu Nakatani
    • Eiji NishiKeishiro NishiAtsushi ShinkaiYasunobu Nakatani
    • B60W10/04F16H61/40F16D31/02G06F7/00
    • B60W10/11B60W10/06F16H47/02F16H59/42F16H61/423F16H61/433F16H61/46F16H61/462F16H2059/6853Y10T74/19153Y10T477/631Y10T477/636Y10T477/676Y10T477/688
    • A load control structure for a work vehicle comprises: set rotation speed detection device for detecting a set rotation of an engine of the work vehicle; actual rotation speed detection device that senses an actual rotational speed of the engine; continuously variable speed change device that receives power from an engine of the work vehicle; speed change position detecting device for detecting a speed change operation position of the continuously variable speed change device; operating device for speed-shifting the continuously variable speed change device; control device for controlling the operation of the operating device; wherein the control device calculates a drop amount of the actual engine rotation speed from the set rotation speed based on the detected information from the set rotation speed detection device and the actual rotation speed detection device, and sets a limit operation position for the continuously variable speed change device based on the calculated drop amount and a correlation data that correlates the actual engine rotation speeds with operating positions of the continuously variable speed change device, and controls the operating device such that the operating position of the continuously variable speed change device moves to the limit operating position based on the set limit operating position and detected information from the speed change position detecting device, and wherein the control device has command device for commanding a change of the correlation data.
    • 一种工作车辆的负载控制结构,具备:检测作业车辆的发动机的设定旋转的设定转速检测装置; 感测发动机的实际转速的实际转速检测装置; 从工作车辆的发动机接收动力的无级变速装置; 速度变化位置检测装置,用于检测无级变速装置的变速操作位置; 用于变速无级变速装置的操作装置; 用于控制操作装置的操作的控制装置; 其特征在于,所述控制装置基于来自所设定的转速检测装置和实际转速检测装置的检测信息,根据所设定的转速来计算实际发动机转速的下降量,并设定所述连续变速的极限动作位置 基于所计算的液滴量的变更装置和将实际的发动机转速与无级变速装置的动作位置相关联的相关数据,并且控制操作装置,使得连续变速装置的运转位置向 基于所设定的限制操作位置的限制操作位置和来自所述变速位置检测装置的检测信息,并且其中所述控制装置具有用于指示相关数据的改变的命令装置。
    • 56. 发明授权
    • Machine having a multiple-ratio transmission
    • 具有多比率传输的机器
    • US08118706B2
    • 2012-02-21
    • US12216111
    • 2008-06-30
    • Alan R. CoutantMichael G. CroninSteven A. DanielNorval P. Thomson
    • Alan R. CoutantMichael G. CroninSteven A. DanielNorval P. Thomson
    • B60W10/04B60W10/10G06F7/00G06F17/00
    • B60W10/06B60W10/10B60W30/1882Y10T477/675Y10T477/688
    • The machine may have a power system that includes a prime mover, a multiple-ratio transmission, a propulsion device, and power-system controls. The method may include propelling the machine by transmitting power from the prime mover to the propulsion device through the multiple-ratio transmission, while controlling operation of the prime mover and the multiple-ratio transmission with the power-system controls. This may include determining with the power-system controls at least one energy-efficiency estimate based at least on energy-efficiency characteristics of the prime mover and energy-efficiency characteristics of the multiple-ratio transmission. Controlling the prime mover and the multiple-ratio transmission may further include controlling a prime-mover operating speed of the prime mover and a transmission drive ratio of the multiple-ratio transmission based at least in-part on the at least one energy-efficiency estimate.
    • 该机器可以具有包括原动机,多比率变速器,推进装置和电力系统控制的动力系统。 该方法可以包括通过多比率变速器将动力从原动机传递到推进装置,同时利用动力系统控制来控制原动机和多比率变速器的运行。 这可以包括利用电力系统控制至少基于原动机的能量效率特性和多比率变速器的能量效率特性来进行至少一个能效估计。 控制原动机和多比率变速器还可以包括至少部分地基于至少一个能量效率估计来控制原动机的原动机运行速度和多比率变速器的变速器传动比 。
    • 59. 发明申请
    • AUTOMATIC TRANSMISSION SYSTEM FOR BULLDOZER
    • BULLDOZER自动变速系统
    • US20110276236A1
    • 2011-11-10
    • US13144714
    • 2010-02-10
    • Kenjiro Shimada
    • Kenjiro Shimada
    • F16H61/02
    • E02F9/2253E02F9/202F16H61/16F16H2061/163Y10T477/688
    • An automatic transmission system for a bulldozer includes an automatic speed stage shifting section that switches among speed stages depending on a vehicle speed, a speed stage maintaining section that maintains a currently selected speed stage until a predetermined speed stage shifting disobedient time elapses after completion of a speed stage shifting while disobeying a switching instruction from the automatic speed stage shifting section, a load detecting section that detects a vehicle load, and a control restricting section that restricts a control processing of the maintaining section for causing it to obey the shifting section's instruction when the vehicle load is a predetermined load or greater even before the disobedient time elapses.
    • 一种用于推土机的自动变速器系统包括:根据车辆速度在速度级之间切换的自动变速级变速部,保持当前选择的转速级的速度级保持部,直到在完成后的预定速度级转换不顺从时间 不遵守来自自动变速级变速部的切换指令,检测车辆负荷的负载检测部,以及限制保持部的控制处理使其能够服从变速部的指示的控制限制部, 即使在不顺从时间过去之前,车辆负载也是预定的负载。