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1. 发明公开

EP0952507A1 CURRENT CONTROL APPARATUS 失效
标题翻译： STROMSTEUERUNGSGERÄT
公开(公告)号：EP0952507A1
公开(公告)日：1999-10-27
申请号：EP97930799.8
申请日：1997-07-15
申请人： KOMATSU LTD.
发明人： SHIMAZU, Mitsuhiro , AKUSHICHI, Shuki
IPC分类号： G05F1/56 , H01F7/18 , F16K31/06 , G05B11/28
CPC分类号： H01H47/325 , F15B13/044 , F15B21/045 , F15B21/087
摘要： A current control apparatus capable of accurately and stably controlling a current, which is supplied to a controlled system, such as a coil of a solenoid, even when a control target value varies greatly at predetermined time intervals. In this apparatus, a value (y3) of a current passing through the controlled system (33) is detected, and the detected current value (y3) is outputted at predetermined time intervals. On the basis of a preceding corrected current value (y4old) and a currently outputted current value (y3), a currently corrected current value (y4) is computed so that this value comes to be intermediate between the preceding corrected current value (y4old) and currently outputted current value (y3), and the resultant current value is outputted. On the basis of a preceding corrected duty (d3old) and a currently outputted duty (d1), a current corrected duty (d3) is computed so that the current corrected duty (d3) has a value intermediate between those of the preceding corrected duty (d3old) and the currently outputted duty (d1). On the basis of a target current value (x1) to be inputted, the outputted corrected current value (y4) and the outputting corrected duty (3d), the duty (d1) is computed, and the results are outputted.
摘要翻译：即使控制目标值以预定的时间间隔大幅变化，也能够精确稳定地控制提供给诸如螺线管的线圈的受控系统的电流的电流控制装置。在该装置中，检测通过受控系统（33）的电流的值（y3），并且以预定的时间间隔输出检测的电流值（y3）。基于先前校正的电流值（y4old）和当前输出的电流值（y3），计算当前校正的电流值（y4），使得该值变为在先前校正电流值（y4old）和当前输出电流值（y3），并输出合成电流值。根据先前校正的占空比（d3old）和当前输出的占空比（d1），计算当前校正的占空比（d3），使得当前校正的占空比（d3）具有在先前校正的占空比 d3old）和当前输出的占空比（d1）。根据要输入的目标电流值（x1），计算输出的校正电流值（y4）和输出校正占空比（3d），占空比（d1），并输出结果。

2. 发明公开

EP2774827A1 STEERING DEVICE OF WHEEL LOADER 有权
标题翻译： LENKVORRICHTUNGFÜREINEN RADLADER
公开(公告)号：EP2774827A1
公开(公告)日：2014-09-10
申请号：EP12873379.7
申请日：2012-04-19
申请人： Komatsu Ltd.
发明人： IMANISHI, Kota , CHIKUGO, Hiroyuki , HORI, Shuuji , AKASHI, Mitsumasa , HASEBE, Akira , AKUSHICHI, Shuki , TAKAMATSU, Nobumasa
IPC分类号： B62D5/28 , B62D5/07 , E02F9/20
CPC分类号： E02F9/225 , B62D1/22 , B62D5/075 , B62D5/09 , B62D5/091 , B62D5/12 , B62D5/18 , B62D5/20 , B62D5/28 , B62D12/00 , E02F9/0841 , E02F9/2285 , E02F9/2296
摘要： A mechanism for prioritizing a handle operation is achieved with a simple configuration and the mechanism is actuated in a stable manner in a wheel loader in which steering can be operated by a handle operation and a lever operation. The steering device includes a handle (21), a joystick (22), steering cylinders (23L, 23R), a steering valve (25), a pump (30), an orbit roll (26) for supplying pilot pressure to the steering valve (25) according to a handle operation, a lever electromagnetic control valve (27) for supplying pilot pressure to the steering valve (25) according to a joystick operation, and a handle prioritization valve (28). The handle prioritization valve (28) shuts off pilot hydraulic pressure supplied to the steering valve (25) from the lever electromagnetic control valve (27) due to a differential pressure in a hydraulic circuit that is produced by operating fluid flowing through the orbit roll (26) during a handle operation.
摘要翻译：通过简单的结构实现了把手操作优先化的机构，并且机构以稳定的方式被驱动到轮式装载机中，其中转向可以通过手柄操作和杠杆操作来操作。转向装置包括手柄（21），操纵杆（22），转向油缸（23L，23R），转向阀（25），泵（30），用于向转向装置提供先导压力的轨道辊根据手柄操作的阀门（25），用于根据操纵杆操作向转向阀（25）提供先导压力的杠杆电磁控制阀（27）和手柄优先阀（28）。手柄优先阀（28）由于通过操作流过轨道辊的流体而产生的液压回路中的压力差，从杠杆电磁控制阀（27）关闭供给到转向阀（25）的先导液压（ 26）。

3. 发明授权

EP2774827B1 STEERING DEVICE OF WHEEL LOADER 有权
标题翻译：轮式装载机的转向装置
公开(公告)号：EP2774827B1
公开(公告)日：2017-06-14
申请号：EP12873379.7
申请日：2012-04-19
申请人： Komatsu Ltd.
发明人： IMANISHI, Kota , CHIKUGO, Hiroyuki , HORI, Shuuji , AKASHI, Mitsumasa , HASEBE, Akira , AKUSHICHI, Shuki , TAKAMATSU, Nobumasa
IPC分类号： B62D12/00 , B62D1/22 , B62D5/09 , E02F9/20
CPC分类号： E02F9/225 , B62D1/22 , B62D5/075 , B62D5/09 , B62D5/091 , B62D5/12 , B62D5/18 , B62D5/20 , B62D5/28 , B62D12/00 , E02F9/0841 , E02F9/2285 , E02F9/2296

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