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    Plough control appts. for tractor - uses closed loop controller to regulate load on plough
    1.
    发明专利
    Plough control appts. for tractor - uses closed loop controller to regulate load on plough 未知

    公开(公告)号：FR2482326A1

    公开(公告)日：1981-11-13

    申请号：FR8109256

    申请日：1981-05-08

    Applicant: BOSCH GMBH ROBERT

    Inventor： ARNOLD WINFRIED ,  HESSE HORST ,  KOBALD WALTER ,  VLEMMINGS JAN

    IPC: A01B63/111 ,  G05B11/36 ,  A01B63/10

    Abstract: The agricultural tractor has a control system to control the position of the plough and to optimise the load condition. The system avoids engine overload and wheel slip. The motion of the plough (12) is provided by a hydraulic actuator (16) operating through a linkage (13,15). High pressure fluid is supplied from a pump (19) over a 3/3 directional valve (18). A servo controller (27) receives inputs from a reference load device (29), engine fuel injection rate (31), engine speed sensor (37), plough actuator pressure (38) and plough arm position (42). The feedback signals are coupled to multiple loop PID control units to maintain the applied load within specified limits.

    6.
    发明专利
    未知

    公开(公告)号：IT8620368D0

    公开(公告)日：1986-05-08

    申请号：IT2036886

    申请日：1986-05-08

    Applicant: BOSCH GMBH ROBERT

    Inventor： ARNOLD WINFRIED ,  HESSE HORST ,  SCHUMACHER WERNER

    IPC: A01B63/111 ,  A01B

    Abstract: In a device for controlling a slip and a traction force of an implement coupled to a tractor by a hoisting unit, a slip contol system is combined with a traction force control system. The control device includes a drive speed sensor connected to the tractor and an acceleration sensor positioned on the tractor. A measured acceleration value is compared in a comparator circuit with an adjusted output signal of the drive speed sensor, and an actual slip value is determined by integration from an acceleration difference signal. The actual slip value is used for adjusting a control value generated in the traction force control system to control a position of the hoisting unit.

    7.
    发明专利
    未知

    公开(公告)号：RO84422A

    公开(公告)日：1984-06-21

    申请号：RO10820582

    申请日：1982-07-20

    Applicant: BOSCH GMBH ROBERT

    Inventor： ARNOLD WINFRIED

    IPC: A01B63/00 ,  A01B63/111 ,  A01B63/112 ,  A01B63/114

    Abstract: To render the mixing relationship of mixed actual pulling force signals and actual positioning signals independent of the level of the respective individual signals, and thus avoid resetting of a manual positioning command element (7) upon change of respective relationships of pulling force and position, for example depth of furrow of a plough upon change of soil consistency, the force signal is normalized or rendered of equal value with respect to the position signal, preferably in accordance with predetermined events, such as change in the positioning command element, sensing of excessive pulling force, or the like, so that the normalized force signal and the actual position signal will be in balance, and relative change thereof in the mixer will not cause uncontrolled change in the position of the load, for example the plough, without resetting of the command element (or, conversely, require resetting of the command element upon change in relationship of the mixed signals).

    8.
    发明专利
    未知

    公开(公告)号：IT1189110B

    公开(公告)日：1988-01-28

    申请号：IT2036886

    申请日：1986-05-08

    Applicant: BOSCH GMBH ROBERT

    Inventor： ARNOLD WINFRIED ,  HESSE HORST ,  SCHUMACHER WERNER

    IPC: A01B63/111 ,  A01B

    Abstract: In a device for controlling a slip and a traction force of an implement coupled to a tractor by a hoisting unit, a slip contol system is combined with a traction force control system. The control device includes a drive speed sensor connected to the tractor and an acceleration sensor positioned on the tractor. A measured acceleration value is compared in a comparator circuit with an adjusted output signal of the drive speed sensor, and an actual slip value is determined by integration from an acceleration difference signal. The actual slip value is used for adjusting a control value generated in the traction force control system to control a position of the hoisting unit.

    Operating part for an electrohydraulic lifting-unit regulating device of tractors
    10.
    发明专利
    Operating part for an electrohydraulic lifting-unit regulating device of tractors 未知

    公开(公告)号：DE3522823A1

    公开(公告)日：1987-01-02

    申请号：DE3522823

    申请日：1985-06-26

    Applicant: BOSCH GMBH ROBERT

    Inventor： ARNOLD WINFRIED ,  HESSE HORST DIPL ING DR ,  HOEFER FRIEDRICH-WILHELM ,  ROMES ROMAN ,  SCHUMACHER WERNER DIPL ING

    IPC: A01B63/111

    Abstract: What is proposed is an operating part (22) for the input of regulating quantities in an electrohydraulic lifting-unit regulating device (11) of a tractor (10), in which not only the basic settings for lift-out, desired value and mode of regulation, but additional settings are possible in three operating axes (34, 35, 36) by means of appropriately arranged adjusting elements (41 to 46). The second adjusting element (42) is arranged on a second, middle operating axis (35) as a handy operating knob for desired-value input which uses the same scale (51) together with the coaxial fourth adjusting element (44) for limiting the end position of the lifting unit (19) in the upward direction and clearly indicates the range between desired value and limitation. The order of priority of the end-position limitation on the fourth adjusting element (44) before a lower end-position limitation by the first adjusting element (41) working proportionally and of the latter before the desired value of the second adjusting element (42) allows an appropriate functional setting of the working range for the regulating device (11).

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