METHOD OF STARTING SPARK-IGNITION DIRECT INJECTION (SIDI) ENGINES
First Claim
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1. A cold start control module for a direct injection engine comprising:
- a fuel flow determination module that determines a requested fuel flow; and
a cylinder activation/deactivation module that deactivates at least one of a plurality of cylinders in response to a determination that the requested fuel flow exceeds a maximum fuel flow of a fuel pump during cold start.
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Abstract
A cold start control module for a direct injection engine includes a fuel flow determination module and a cylinder activation/deactivation module. The fuel flow determination module determines a requested fuel flow. The cylinder activation/deactivation module deactivates at least one of cylinders when the requested fuel flow exceeds a maximum fuel flow of the fuel pump during cold start.
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Citations
16 Claims
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1. A cold start control module for a direct injection engine comprising:
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a fuel flow determination module that determines a requested fuel flow; and a cylinder activation/deactivation module that deactivates at least one of a plurality of cylinders in response to a determination that the requested fuel flow exceeds a maximum fuel flow of a fuel pump during cold start. - View Dependent Claims (2, 3, 4, 5, 6, 7, 15)
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8. A method of starting a direct injection engine comprising:
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determining a requested fuel flow; and deactivating at least one of a plurality of cylinders in response to a determination that the requested fuel flow exceeds a maximum fuel flow of the fuel pump during cold start. - View Dependent Claims (9, 10, 11, 12, 13, 14, 16)
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Specification