Invention Grant
- Patent Title: Open-loop torque control with closed-loop feedback
- Patent Title (中): 具有闭环反馈的开环转矩控制
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Application No.: US13177354Application Date: 2011-07-06
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Publication No.: US08532889B2Publication Date: 2013-09-10
- Inventor: Frank A. Demarco , Brian D. Kuras
- Applicant: Frank A. Demarco , Brian D. Kuras
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Agency: Leydig, Voit & Mayer
- Main IPC: G06F17/00
- IPC: G06F17/00 ; B60K17/00 ; H02P17/00 ; F16H61/00

Abstract:
A variator torque control system adjusts a variator output so that the actual output torque of the variator closely matches an expected output torque. In an example, pressure values of an existing torque control map are supplemented in real time with calculated pressure supplement values based on the current operation of the variator. The pressure supplement value for each mapped pressure value may be derived based on a prior application of the same or another map value.
Public/Granted literature
- US20110269597A1 OPEN-LOOP TORQUE CONTROL WITH CLOSED-LOOP FEEDBACK Public/Granted day:2011-11-03
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