Method of cylinder shut-off in an internal combustion engine, in particular of a vehicle, and appropriate device
AssigneeRobert Bosch GmbH
InventorsSteffen Franke, Axel Heinstein
Life of this patent
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Abstract
The method and the device are used for cylinder shut-off in an internal combustion engine (10), in particular of a vehicle, using a control unit (15) in effective operational contact with the cylinders (11, 12, 13, 14) of the internal combustion engine (10), which has a monitoring unit (21), a knock regulating unit (20) and a fuel injector shut-off unit (22). At the same time the provision is made that the fuel injector shut-off unit (22) is operationally linked to the knock regulating unit (20) to achieve coordinated cylinder shut-off. The fuel injector shut-off unit (22) is provided with a memory medium (23) for storing a cylinder shut-off program.
Claims11
A method of cylinder shut off in an internal combustion engine of a vehicle, the internal combustion engine having a plurality of cylinders, the method comprising:
- determining a number of cylinders to be shut-off based on a desired torque of the internal combustion engine;
- establishing a shut-off sequence of the cylinders based on the number of cylinders to be shut off and using data from a cylinder-selective knock regulation of the internal combustion engine;
- and
- shutting off the cylinders based on the shut-off sequence.
A device for cylinder shut-off in an internal combustion engine having a plurality of cylinders, the device comprising:
- a control unit configured to determine a number of cylinders to be shut-off based on a desired torque of the internal combustion engine, the control unit further configured to establish a shut-off sequence of the cylinders based on the number of cylinders to be shut off and using data from a cylinder-selective knock regulation of the internal combustion engine, and the control unit further configured to shut off the cylinders based on the shut-off sequence.
Dependencies are inferred from the claim text.