公开(公告)号：EP0417283A1

公开(公告)日：1991-03-20

申请号：EP89906463.8

申请日：1989-05-31

申请人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO

发明人： KANAYAMA, Noboru The Techn. Institute

IPC分类号： F16H47/02

CPC分类号： F16H61/431 ,  F16H47/02 ,  F16H61/421 ,  F16H61/462 ,  Y10T74/19149 ,  Y10T74/19158 ,  Y10T74/19163 ,  Y10T477/636

摘要： A mechanical-hydraulic transmission gear and a method of controlling the same which are used for construction vehicles or machines, and which are designed in such a manner that, when a motor is rotated at a high speed, the transmission of the power is carried out via a mechanical transmission gear alone to control a hydraulic power loss to substantially zero, and in such a manner that, when the motor is rotated at a low speed, the transmission of the power is carried out via a hydraulic transmission gear alone to make easier a speed control operation and a forward and reverse rotation switching control operation. This mechanical-hydraulic transmission gear includes a hydraulic transmission gear (10) having a hydraulic pump (11) and a hydraulic motor (13), a mechanical driving gear (30), a forward and backward movement change-over means (26), a speed control means (27), a means (22) for detecting the rotational speed of an output shaft (14), and a control means (20) adapted to compare the signals from the forward and backward movement change-over means, speed control means and rotational speed detecting means and carry out the controlling of the connection and disconnection of a clutch (31) for an input shaft (2) in the mechanical transmission gear and the controlling of the capacities of the pump and the hydraulic motor. The method of controlling the mechanical-hydraulic transmission gear includes the steps of disconnecting the clutch for the mechanical transmission gear when the rotational speed of the output shaft is lower than a predetermined level, to transmit the power by the hydraulic transmission gear alone, and connecting the clutch for the mechanical transmission gear when the rotational speed of the output shaft is higher than the predetermined level, to transmit the power by the mechanical transmission gear alone, and minimize in accordance with a command from the control means the power absorbed into the hydraulic transmission.

摘要翻译： 用于工程车辆或机器的机械液压传动齿轮及其控制方法，其设计成使得当马达高速旋转时，执行动力传动 通过单独的机械传动齿轮将液压功率损失控制为基本上为零，并且以这样的方式，当电动机以低速旋转时，仅通过液压传动齿轮进行动力传动，以使得更容易 速度控制操作和正向和反向旋转切换控制操作。 该机械液压传动齿轮包括具有液压泵（11）和液压马达（13）的液压传动齿轮（10），机械驱动齿轮（30），前后移动转换装置（26） 速度控制装置（27），用于检测输出轴（14）的转速的装置（22），以及适于比较来自前后移动转换装置的信号的速度控制装置（20） 控制装置和转速检测装置，并且执行用于机械传动齿轮中的输入轴（2）的离合器（31）的连接和断开的控制以及对泵和液压马达的容量的控制。 控制机械液压传动齿轮的方法包括以下步骤：当输出轴的转速低于预定水平时，断开用于机械传动齿轮的离合器，以便仅通过液压传动齿轮传递动力，并连接 当输出轴的转速高于预定水平时用于机械传动齿轮的离合器，以便通过机械传动齿轮单独传递动力，并且根据来自控制装置的命令将吸收到液压中的功率最小化 传输。

公开(公告)号：EP0417283B1

公开(公告)日：1997-08-06

申请号：EP89906463.8

申请日：1989-05-31

申请人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO

发明人： KANAYAMA, Noboru The Techn. Institute

IPC分类号： F16H47/02

CPC分类号： F16H61/431 ,  F16H47/02 ,  F16H61/421 ,  F16H61/462 ,  Y10T74/19149 ,  Y10T74/19158 ,  Y10T74/19163 ,  Y10T477/636

摘要： A mechanical-hydraulic transmission gear and a method of controlling the same which are used for construction vehicles or machines, and which are designed in such a manner that, when a motor is rotated at a high speed, the transmission of the power is carried out via a mechanical transmission gear alone to control a hydraulic power loss to substantially zero, and in such a manner that, when the motor is rotated at a low speed, the transmission of the power is carried out via a hydraulic transmission gear alone to make easier a speed control operation and a forward and reverse rotation switching control operation. This mechanical-hydraulic transmission gear includes a hydraulic transmission gear (10) having a hydraulic pump (11) and a hydraulic motor (13), a mechanical driving gear (30), a forward and backward movement change-over means (26), a speed control means (27), a means (22) for detecting the rotational speed of an output shaft (14), and a control means (20) adapted to compare the signals from the forward and backward movement change-over means, speed control means and rotational speed detecting means and carry out the controlling of the connection and disconnection of a clutch (31) for an input shaft (2) in the mechanical transmission gear and the controlling of the capacities of the pump and the hydraulic motor. The method of controlling the mechanical-hydraulic transmission gear includes the steps of disconnecting the clutch for the mechanical transmission gear when the rotational speed of the output shaft is lower than a predetermined level, to transmit the power by the hydraulic transmission gear alone, and connecting the clutch for the mechanical transmission gear when the rotational speed of the output shaft is higher than the predetermined level, to transmit the power by the mechanical transmission gear alone, and minimize in accordance with a command from the control means the power absorbed into the hydraulic transmission.