公开(公告)号：EP3119941A4

公开(公告)日：2018-02-14

申请号：EP15765963

申请日：2015-02-19

申请人： CATERPILLAR INC

发明人： SHARMA AMIT ,  BUDDE STEVEN C ,  VAN DE VEER BRAD ROBERT

IPC分类号： E02F3/76 ,  A01B1/00 ,  A01D1/00 ,  B60P1/00 ,  B62D6/00 ,  E01C23/088 ,  E02F3/84 ,  E02F9/08 ,  E02F9/20 ,  E02F9/26

CPC分类号： E02F9/2025 ,  B60P1/00 ,  B62D6/003 ,  E02F3/764 ,  E02F9/0841 ,  E02F9/2087 ,  E02F9/265

摘要： Activation of an automatic articulation control function in an articulated machine is delayed until error conditions are cleared or a steering angle to alignment angle mismatch is corrected. A controller monitors a selector setting indicating a desire to activate the automatic articulation control function. The controller also evaluates whether conditions such as low ground speed, loss of signal from needed sensors, or articulation misalignment are present. If so, the conditions are monitored and when corrected, the automatic articulation control function is activated. An indicator may be set to inform an operator that the automatic articulation control function is pending activation.

公开(公告)号：EP3119662A4

公开(公告)日：2018-02-14

申请号：EP15765311

申请日：2015-02-18

申请人： CATERPILLAR INC

发明人： SHARMA AMIT ,  BUDDE STEVEN C ,  MAAS CURTIS ,  MOUL MATT I

IPC分类号： B62D6/00 ,  B62D9/00 ,  B62D12/00 ,  E02F3/76 ,  E02F9/08 ,  E02F9/20 ,  E02F9/22 ,  G05B13/02

CPC分类号： E02F9/2087 ,  B62D9/00 ,  B62D12/00 ,  E02F3/7659 ,  E02F9/0841 ,  E02F9/225 ,  G05B13/02

摘要： An controller uses one of several transfer curves to map steering angle of an articulated machine to articulation angle. Because an articulated machine may have a range of steering angles that is much greater than the range of articulation angles, the controller uses one of several techniques to map the full range of steering angles to the full range of articulation angles. One technique involves multiple non-zero slope regions, another technique uses a less than one-to-one linear transfer function of steering angle to articulation angle.

公开(公告)号：EP3119942A4

公开(公告)日：2017-10-25

申请号：EP15766005

申请日：2015-02-18

申请人： CATERPILLAR INC

发明人： SHARMA AMIT ,  BUDDE STEVEN C ,  MOUL MATT I ,  VAN DE VEER BRAD ROBERT ,  HUGHES ERIC C

IPC分类号： E02F3/76 ,  B62D12/00 ,  E02F3/84 ,  E02F9/08 ,  E02F9/20 ,  E02F9/22

CPC分类号： E02F9/2033 ,  B60Y2200/411 ,  B62D6/002 ,  B62D11/183 ,  B62D12/00 ,  E02F3/7659 ,  E02F9/0841 ,  E02F9/2087 ,  E02F9/225

公开(公告)号：EP3119663A4

公开(公告)日：2018-03-21

申请号：EP15765785

申请日：2015-03-05

申请人： CATERPILLAR INC

发明人： SHARMA AMIT ,  BUDDE STEVEN C ,  VAN DE VEER BRAD ROBERT

IPC分类号： B62D12/00 ,  B62D6/02 ,  B62D9/00 ,  B62D53/04 ,  E02F3/76 ,  E02F9/08 ,  E02F9/20 ,  E02F9/22 ,  G05B13/02

CPC分类号： E02F9/2087 ,  B62D6/003 ,  B62D6/02 ,  B62D9/00 ,  B62D12/00 ,  E02F3/7659 ,  E02F9/0841 ,  E02F9/225

摘要： When engaged, an articulation controller automatically adjusts an angle of articulation between a front frame and a rear frame of a motor grader based on a steering angle of the front wheels. If a groundspeed of the motor grader exceeds a threshold groundspeed, the articulation controller enters a mode that only allows decreasing the angle of articulation of the motor grader. When the angle of articulation reaches zero, the articulation controller disengages until the groundspeed is reduced below the threshold groundspeed.