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US 2019/0376483 A1Published application
Methods and system for starting an engine
AssigneeFord Global Technologies, LLC
InventorsHafiz Khafagy, Siraj Siddiqui
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Abstract
Systems and methods for operating a hybrid powertrain or driveline that includes an engine and an integrated starter/generator are described. In one example, the integrated starter/generator may crank the engine via a pinion gear during a first engine start. The integrated starter/generator may crank the engine via a belt during a second engine start.
Claims20
A powertrain operating method, comprising:
- cranking an engine via an integrated starter/generator, a pinion gear, and a flywheel during a first engine start;
- and
- cranking the engine via the integrated starter/generator, a belt, and a crankshaft pulley during a second engine start.
A powertrain operating method, comprising:
- disengaging a spline collar from a belt pulley during a first engine start, the belt pulley mechanically coupled to a shaft of an integrated starter/generator, the belt pulley coupled to an engine crankshaft pulley;
- engaging the spline collar to the belt pulley during a second engine start;
- and
- cranking an engine via the belt pulley and the integrated starter/generator during the second engine start.
1 more element
A system, comprising:
- an engine including a flywheel;
- an integrated starter/generator (ISG) coupled to the engine via a belt;
- a pinion gear selectively coupled to the ISG via a clutch;
- and
- a controller including executable instructions stored in non-transitory memory to engage the pinion gear to the flywheel during a first engine start.
2 more elements
Dependencies are inferred from the claim text.