Method for operating a vehicle
AssigneeFord Global Technologies, LLC
InventorsUwe Gussen, Frederic Stefan, Thomas Rambow, Goetz-Philipp Wegner
Life of this patent
Estimating the term…
Abstract
A method for operating a vehicle system is provided. The method includes activating a starter-generator rotationally coupled to a crankshaft output in an internal combustion engine while combustion operation in the internal combustion engine is inhibited, operating the starter-generator to drive the crankshaft in a predetermined speed range while combustion operation in the internal combustion engine is inhibited, and activating combustion operation in a cylinder of the internal combustion engine in response to a combustion activation trigger.
Claims19
A method for operating a vehicle including an engine and a starter-generator having a torque-transmitting connection to the engine by a belt drive to turn the engine, comprising:
- in a driveaway situation from stopped, activating the starter-generator and generating a torque to run the engine at a predetermined idle speed while a combustion process in the engine is inhibited;
- responsive to actuation of a throttle control element, starting the combustion process and deactivating the starter-generator.
A vehicle system comprising:
- an internal combustion engine including a crankshaft having an output and a cylinder, the internal combustion engine configured to implement combustion operation in the cylinder;
- a starter-generator rotationally coupled to the output of the crankshaft, the starter-generator configured to operate in a drive mode to provide rotational output to the crankshaft and in a recharge mode to receive rotational input from the crankshaft and charge an energy accumulator coupled to the starter-generator;
- a clutch configured to engage and disengage the crankshaft from a manual shift transmission, the manual shift transmission coupled to at least one drive axle and the clutch;
- and
- a control sub-system with instructions stored in memory to:
- during a first operating condition, operate the starter-generator in the drive mode to provide rotational output to the crankshaft to rotate the crankshaft within a predetermined speed range while inhibiting combustion operation in the cylinder;
- and
- during a second operating condition, activating combustion operation in the cylinder of the internal combustion engine and deactivating the starter-generator in response to a combustion activation trigger.
A method for operating a vehicle system comprising:
- activating a starter-generator rotationally coupled to an output of a crankshaft in an engine while combustion operation in the engine is inhibited;
- operating the starter-generator to drive the crankshaft in a predetermined speed range while combustion operation in the engine is inhibited;
- and
- activating combustion operation in a cylinder of the engine and deactivating the starter-generator in response to a combustion activation trigger.
Dependencies are inferred from the claim text.