Invention Grant
- Patent Title: System and method for determining and controlling engine speeds during gear shifting
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Application No.: US16145932Application Date: 2018-09-28
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Publication No.: US10823287B2Publication Date: 2020-11-03
- Inventor: Ashraf Omran , Garth Harvey Bulgrien , Brian A. Hartman
- 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: F16H63/50
- IPC: F16H63/50 ; F16H61/02 ; B60W30/19 ; B60W10/06 ; B60W10/108 ; B60W10/11 ; F16H59/08 ; B60W10/107

Abstract:
A method for determining and controlling engine speeds of a work vehicle during gear shifts may include controlling an operation of an engine and/or a transmission of a work vehicle so as to maintain the work vehicle operating at a requested speed, and determining a measured gear ratio for the transmission as a gear shift is occurring from a first gear ratio to a second gear ratio. The method may also include calculating a desired engine speed during the gear shift as a function of the requested speed and either the measured gear ratio or the second gear ratio. In addition, when the measured gear ratio differs from the first gear ratio by a predetermined threshold amount, the method may include controlling the engine speed based on the desired engine speed for a remainder of the gear shift from the first gear ratio to the second gear ratio.
Public/Granted literature
- US20200103025A1 SYSTEM AND METHOD FOR DETERMINING AND CONTROLLING ENGINE SPEEDS DURING GEAR SHIFTING Public/Granted day:2020-04-02
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