System and method for selecting a cylinder deactivation mode
First Claim
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1. A method for operating an engine, comprising:
- estimating a plurality of engine fuel consumption values for operating the engine with a plurality of configurations including different actual total numbers of active cylinders, the plurality of engine fuel consumption values based on an actual total number of activated cylinders, engine speed, and driver demand torque;
operating the engine including an actual total number of active cylinders based on the plurality of engine fuel consumption values; and
increasing the actual total number of active cylinders in response to output of an engine vibration sensor.
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Abstract
Systems and methods for operating an engine with a plurality of deactivating valves for deactivating engine cylinders are presented. In one example, a plurality of different cylinder operating modes may be available to operate the engine. Engine fuel consumption in each of the plurality of different cylinder operating modes is estimated and the engine may be operated in the cylinder mode that provides greatest fuel efficiency.
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8 Claims
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1. A method for operating an engine, comprising:
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estimating a plurality of engine fuel consumption values for operating the engine with a plurality of configurations including different actual total numbers of active cylinders, the plurality of engine fuel consumption values based on an actual total number of activated cylinders, engine speed, and driver demand torque; operating the engine including an actual total number of active cylinders based on the plurality of engine fuel consumption values; and increasing the actual total number of active cylinders in response to output of an engine vibration sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification