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US 2019/0241175 A1Published application
Operating methods and system for a driveline disconnect clutch
AssigneeFord Global Technologies, LLC
InventorsStuart Ford, Corey Blue, Todd McCullough
Life of this patent
Estimating the term…
Abstract
Systems and methods for operating a driveline of a hybrid vehicle are presented. In one example, the systems and methods determine a driveline disconnect boost time during vehicle operating conditions when it may be less noticeable. The driveline disconnect boost time may then be used to close a driveline disconnect clutch in a way that may reduce torque disturbances through the driveline.
Claims20
A driveline operating method, comprising:
- requesting adjustment of a driveline disconnect clutch boost time via a controller;
- applying a pressure to close a driveline disconnect clutch in response to the request;
- and
- adjusting the driveline disconnect clutch boost time according to a time between the applying of the pressure and an indication of torque transfer through a driveline disconnect clutch.
1 more element
A driveline operating method, comprising:
- requesting adjustment of a driveline disconnect clutch boost time via a controller;
- engaging vehicle brakes and engaging a transmission into neutral or park in response to the request;
- applying a pressure to close a driveline disconnect clutch in response to the request;
- and
- adjusting the driveline disconnect clutch boost time according to a time between the applying of the pressure and an indication of torque transfer through a driveline disconnect clutch.
2 more elements
A system, comprising:
- an engine;
- an electric machine;
- a driveline disconnect clutch positioned between the engine and the electric machine;
- a transmission coupled to the electric machine;
- and
- a controller including executable instructions stored in non-transitory memory that cause the controller to operate the electric machine in a speed control mode and that cause the controller to cease engine rotation while performing a driveline disconnect clutch boost time adjustment procedure.
3 more elements
Dependencies are inferred from the claim text.