公开(公告)号：US20210087792A1

公开(公告)日：2021-03-25

申请号：US17026387

申请日：2020-09-21

Applicant: Clark Equipment Company

Inventor： Charles Young ,  Marty Carpenter ,  Scott Becker ,  Douglas Kallas ,  Matthew Kaldor ,  Eric Zabel ,  Boston Zachmann

IPC: E02F9/22

Abstract: A power machine can include a hydraulic drive system that includes an infinitely variable hydraulic drive motor. A run-time displacement of the hydraulic motor can be adjusted based on commanded travel speed or based on a output torque. In some case, the run-time displacement can be selected from one of a plurality of displacement ranges, such as a high range and a low range.

公开(公告)号：US20220340016A1

公开(公告)日：2022-10-27

申请号：US17728555

申请日：2022-04-25

Applicant: Clark Equipment Company

Inventor： Boston Zachmann ,  Chad Swenson

IPC: B60L15/20 ,  F02D29/04 ,  F02D41/22

Abstract: A power machine can include an engine control module configured to determine a target operational speed of the power machine and control the engine based on the target operational speed. A drive controller can be configured to control operation of a hydraulic drive pump or other work element to decrease engine speed toward a target stabilization speed that is lower than the target operational speed.

公开(公告)号：US20210339730A1

公开(公告)日：2021-11-04

申请号：US17244587

申请日：2021-04-29

Applicant: Clark Equipment Company

Inventor： Austin Gapinski ,  Chance Uhrig ,  Boston Zachmann

IPC: B60W10/18 ,  B60W10/06

Abstract: A power machine can include a traction lock system to stop movement of the power machine. The traction lock system can include a controller configured to receive a brake input from an operator. In response to receiving the brake input, the controller can temporarily command a target (e.g., reduced) speed of the engine before engaging the brake.

公开(公告)号：US20230193593A1

公开(公告)日：2023-06-22

申请号：US18145487

申请日：2022-12-22

Applicant: Clark Equipment Company

Inventor： Justin Odegaard ,  Boston Zachmann ,  Benjamin Althoff

IPC: E02F9/20 ,  B62D11/04

CPC classification number: E02F9/2087 ,  B62D11/04 ,  E02F9/2004 ,  E02F3/3414

Abstract: A power machine can include a control device configured to select a ground-engagement mode from a plurality of ground-engagement modes. An operator input can be received from an operator input device to command movement of one or more drive actuators to provide turning travel. The one or more drive actuators can be commanded to provide modified turning travel based on the selected ground-engagement mode.