Invention Grant
- Patent Title: System and method for controlling a powershift transmission
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Application No.: US15166429Application Date: 2016-05-27
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Publication No.: US10227942B2Publication Date: 2019-03-12
- Inventor: Garth Harvey Bulgrien , Brent Lynn Gustafson , Kushan Vora
- Applicant: CNH Industrial America LLC
- Applicant Address: US PA New Holland
- Assignee: CNH Industrial America LLC
- Current Assignee: CNH Industrial America LLC
- Current Assignee Address: US PA New Holland
- Agent Rickard K. DeMille; Rebecca L. Henkel
- Main IPC: F16H61/02
- IPC: F16H61/02 ; F02D41/10 ; B60W30/188 ; B60W10/06 ; B60W10/11 ; A01B76/00 ; F02D29/02 ; F02D31/00 ; F02D41/26 ; B60K17/02 ; B60K17/28 ; F16D48/02 ; F16D48/06 ; A01B71/06 ; B60K25/02 ; F02D41/14 ; F02D41/02 ; F16H59/14

Abstract:
An agricultural vehicle includes an engine, a transmission driven by the engine, and a controller. The controller, in operation, adjusts a gear ratio of the transmission using an algorithm. The algorithm, in operation, performs the following steps: reduce a torque capacity of a first offgoing clutch of the transmission to a first torque target, reduce the torque capacity of the first offgoing clutch to a second torque target while adjusting the torque capacity of a first oncoming clutch of the transmission to a third torque target, such that the gear ratio of the transmission is modified in a first direction, and increase the torque capacity of the first oncoming clutch to a desired torque capacity.
Public/Granted literature
- US20170198808A1 SYSTEM AND METHOD FOR CONTROLLING A POWERSHIFT TRANSMISSION Public/Granted day:2017-07-13
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