Control System for Traveling Working Vehicle
    1.
    发明申请
    Control System for Traveling Working Vehicle 有权
    旅行车辆控制系统

    公开(公告)号:US20070204605A1

    公开(公告)日:2007-09-06

    申请号:US11632768

    申请日:2005-11-11

    IPC分类号: F16D31/02

    摘要: A traveling working vehicle maintains fuel economy while ensuring a sufficient work rate in heavy-load work A torque control regulator 26 controls the absorption torque of a hydraulic pump 22 to ensure that it does not exceed a preset maximum absorption torque, and an accelerator pedal 12 commands a target revolution speed of an engine 1. Revolution speed deviation computing sections 52 and 62, a modification torque computing section 53, a modification revolution speed computing section 63, speed ratio computing sections 54 and 64, traveling state determining sections 55 and 65, and working state determining sections 56 and 66 determine an operating state of the traveling working vehicle. Both the pump base torque of the hydraulic pump 22 and the target revolution speed of the engine 1 are modified depending on the determination result of the state determining sections.

    摘要翻译: 行驶工作车辆在重载工作中确保足够的工作速度的同时保持燃料经济性。扭矩控制调节器26控制液压泵22的吸收扭矩,以确保其不超过预设的最大吸收扭矩,并且加速器踏板12 命令发动机的目标转速1.转速偏差运算部52,62,变形转矩运算部53,变形转速运算部63,变速比计算部54,64,行驶状态判定部55,65, 工作状态判定部56,66决定行驶工作车辆的运转状态。 液压泵22的泵基座扭矩和发动机1的目标转速都根据状态判定部的判定结果进行修正。

    Control system for traveling working vehicle
    2.
    发明授权
    Control system for traveling working vehicle 有权
    行驶车辆控制系统

    公开(公告)号:US07543447B2

    公开(公告)日:2009-06-09

    申请号:US11632768

    申请日:2005-11-11

    IPC分类号: F16D31/02

    摘要: A traveling working vehicle maintains fuel economy while ensuring a sufficient work rate in heavy-load work.A torque control regulator 26 controls the absorption torque of a hydraulic pump 22 to ensure that it does not exceed a preset maximum absorption torque, and an accelerator pedal 12 commands a target revolution speed of an engine 1. Revolution speed deviation computing sections 52 and 62, a modification torque computing section 53, a modification revolution speed computing section 63, speed ratio computing sections 54 and 64, traveling state determining sections 55 and 65, and working state determining sections 56 and 66 determine an operating state of the traveling working vehicle. Both the pump base torque of the hydraulic pump 22 and the target revolution speed of the engine 1 are modified depending on the determination result of the state determining sections.

    摘要翻译: 行驶中的工作车辆保持燃油经济性,同时确保重载工作中的足够的工作速度。 扭矩控制调节器26控制液压泵22的吸收扭矩,以确保其不超过预设的最大吸收扭矩,并且加速器踏板12命令发动机1的目标转速。转速偏差运算部52和62 变更转矩运算部53,变速转速运算部63,变速比计算部54,64,行驶状态判定部55,65以及工作状态判定部56,66决定行驶工作车辆的运转状态。 液压泵22的泵基座扭矩和发动机1的目标转速都根据状态判定部的判定结果进行修正。

    Engine Lag Down Suppressing Device of Construction Machinery
    4.
    发明申请
    Engine Lag Down Suppressing Device of Construction Machinery 有权
    发动机减速机施工机械

    公开(公告)号:US20080236157A1

    公开(公告)日:2008-10-02

    申请号:US10569490

    申请日:2004-08-27

    IPC分类号: F16D31/00

    摘要: An engine lag down suppressing device of construction machinery, comprising a vehicle body controller (13) having a first torque control means and a second torque control means, and a third torque control means. The first torque control means controls a torque control valve (7) to the minimum pump torque (value: Min) according to a target engine rotational speed (Nr) when the operating device (5) in the non-operated state of an continues for a monitoring time (TX1) to suppress an engine lag down after a specified holing time to hold a torque to a low pump torque is passed when the operating device in the non-operated state is operated. The second torque control means controls the torque control valve (7) to hold the minimum pump torque for a specified holding time (Tx2) after the operating device (5) in the non-operated state is operated. The third torque control means comprises a solenoid valve (16) and controls the torque control valve (7) to gradually increase the pump torque with elapse of time from a time when the specified holding time (TX2) is passed based on a specified torque increasing rate (K).

    摘要翻译: 一种工程机械的发动机减速装置,包括具有第一转矩控制装置和第二转矩控制装置的车体控制器(13)和第三转矩控制装置。 当处于非操作状态的操作装置(5)持续时,第一扭矩控制装置根据目标发动机转速(Nr)将转矩控制阀(7)控制到最小泵扭矩(值:Min) 当处于非操作状态的操作装置被操作时,通过在指定的启动时间之后抑制发动机滞后的监视时间(TX 1),以将扭矩保持在低的泵转矩。 在操作非操作状态的操作装置(5)之后,第二转矩控制装置控制转矩控制阀(7)将最小泵转矩保持在指定的保持时间(Tx 2)。 第三转矩控制装置包括电磁阀(16),并且控制转矩控制阀(7),以便在从指定的保持时间(TX2)通过指定的转矩时起经过时间逐渐增加泵的转矩 增加率(K)。