Invention Grant
- Patent Title: Continuously variable transmission clutch anti-autoengagement in multi-clutch vehicle transmission arrangement
- Patent Title (中): 连续可变换档离合器反自动管理多离合器车辆传动装置
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Application No.: US13430260Application Date: 2012-03-26
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Publication No.: US08634998B2Publication Date: 2014-01-21
- Inventor: Brian D. Kuras , Brian E. Lister , Glen Patrick Calvert
- Applicant: Brian D. Kuras , Brian E. Lister , Glen Patrick Calvert
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Agency: Leydig, Voit & Mayer
- Main IPC: B60K23/02
- IPC: B60K23/02

Abstract:
A machine is described that includes an engine, a multi-clutch transmission and a controller. The controller is configured with computer-executable instructions for managing operation of the multi-clutch transmission to avoid autoengagement of a disengaged clutch. The computer-executable instructions configure the controller to receive sensor signals indicative of current operating status of the machine; determine, based upon the sensor signals, a configured minimum engine speed needed to avoid autoengagement of the disengaged clutch; and conditionally increase an engine speed based upon a comparison of the configured minimum engine speed and a sensed current engine speed. The machine includes a continuously variable transmission coupled to the multi-clutch transmission, and the controller is configured to adjust the continuously variable transmission ratio to counter the engine speed increase and thus maintain a current clutch output speed when increasing the engine speed to avoid autoengagement of a disengaged clutch.
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