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    • 3. 发明公开
    • 작업차용 엔진 제어 장치
    • 发动机工作车辆控制器
    • KR1020090110220A
    • 2009-10-21
    • KR1020090025637
    • 2009-03-26
    • 가부시끼 가이샤 구보다
    • 니시에이지오까베노부유끼요시까와겐지
    • F02D41/02F02D41/04F02D11/02F02D35/00
    • F02D41/04F02D31/007F02D41/3011F02D2200/10Y02T10/44
    • PURPOSE: An engine control apparatus for a work vehicle is provided to operate a fuel injection control unit based on the torque curve characteristic that engine rpm changes according to the change of torque. CONSTITUTION: An engine control apparatus for a work vehicle comprises first and second mode controllers(81,82), a control mode managing unit(94), a differential computing unit(95), and first and second engine load estimating units(81a,82a). The first and second mode controllers execute first and second mode control for determining the fuel injection amount of an engine based on first and second torque-engine rpm characteristics. The control mode managing unit selects the first or the second mode control. The differential computing unit calculates the difference between the unloaded engine rpm corresponding to an operating position detected by an operating position sensor(75) and the engine rpm detected by an rpm sensor(72). The first and second engine load estimating units estimate the engine load based on the rpm in the first mode control and on the fuel injection amount in the second mode control.
    • 目的:提供一种用于工作车辆的发动机控制装置,用于根据发动机转速根据转矩变化而变化的转矩曲线特性来操作燃料喷射控制单元。 构成:用于工作车辆的发动机控制装置包括第一和第二模式控制器(81,82),控制模式管理单元(94),差分计算单元(95)和第一和第二发动机负载估计单元(81a, 82A)。 第一和第二模式控制器基于第一和第二转矩 - 发动机转速特性来执行用于确定发动机的燃料喷射量的第一和第二模式控制。 控制模式管理单元选择第一或第二模式控制。 差分计算单元计算与由操作位置传感器(75)检测到的操作位置相对应的卸载发动机转速与由rpm传感器(72)检测的发动机转速之间的差。 第一和第二发动机负荷估计单元基于第一模式控制中的转速和第二模式控制中的燃料喷射量来估计发动机负荷。
    • 5. 发明公开
    • 작업차를 위한 엔진 회전수 제어 시스템
    • 用于工作车辆的发动机旋转控制
    • KR1020090124889A
    • 2009-12-03
    • KR1020080086084
    • 2008-09-02
    • 가부시끼 가이샤 구보다
    • 니시에이지오까베노부유끼요시까와겐지
    • F02D11/00F02D29/00F02D45/00
    • B60W10/06B60W30/188B60W2540/10B60W2540/16B60W2710/0644E02F9/2066F02D31/001F02D2200/602F02D2200/604
    • PURPOSE: An engine RPM(Revolution Per Minute) control system for a working vehicle is provided to prevent the output RPM of an engine from increasing by operation of an input device in the state positioning an accelerator lever in an idling position. CONSTITUTION: An engine RPM(Revolution Per Minute) control system for a working vehicle is composed of a pedal sensor(32), a foot accelerator control unit, a lever sensor(34), a hand accelerator control unit, and a forward rotation control unit. The foot accelerator control unit controls a foot accelerator which has the engine RPM corresponding to the output of the pedal sensor as the target RPM. The hand accelerator control unit controls a hand accelerator which has the engine RPM corresponding to the output of the lever sensor as the target RPM. The forward rotation control unit controls so that the RPM memorized in a memory device is as the target RPM. If the RPM corresponding to the output of the lever sensor is higher than the idling RPM, the forward rotation control is processed through operation of input devices(37,38). If the RPM corresponding to the output of the lever sensor is less than the idling RPM, the forward rotation control is stopped through operation of the input devices.
    • 目的:提供一种用于工作车辆的发动机RPM(每分钟革命转速)控制系统,以防止在将加速器杆定位在空转位置的状态下通过输入装置的操作来增加发动机的输出RPM。 构成:工作车辆的发动机RPM(每分钟转数)控制系统由踏板传感器(32),脚踏加速器控制单元,杆传感器(34),手加速器控制单元和正向旋转控制 单元。 脚踏加速器控制单元控制脚踏加速器,其具有对应于踏板传感器的输出的发动机转速作为目标RPM。 手加速器控制单元控制具有对应于杆传感器的输出的发动机RPM作为目标RPM的手加速器。 正向旋转控制单元进行控制,使得存储在存储装置中的RPM作为目标RPM。 如果对应于杠杆传感器的输出的RPM高于空转RPM,则通过输入装置(37,38)的操作来处理正向旋转控制。 如果对应于杠杆传感器的输出的RPM小于空转RPM,则通过输入装置的操作来停止正向旋转控制。