ENGINE SPEED CONTROL SYSTEMS AND METHODS
First Claim
1. An engine control system for an auto-stop/start vehicle, comprising:
- an actuator control module that determines a target spark timing for a first time that is between a second time when engine cranking begins and a third time when a measured engine speed becomes greater than a predetermined engine speed after the second time;
a correction determination module that determines a spark timing correction for the first time based on a target engine speed and a measured engine speed; and
a spark adjustment module that sets a spark timing for the first time based on the target spark timing and the spark timing correction.
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Accused Products
Abstract
An engine control system for an auto-stop/start vehicle, comprising: an actuator control module, a correction determination module, and a spark adjustment module. The actuator control module determines a target spark timing for a first time that is between a second time when engine cranking begins and a third time when a measured engine speed becomes greater than a predetermined engine speed after the second time. The correction determination module determines a spark timing correction for the first time based on a target engine speed and a measured engine speed. The spark adjustment module sets a spark timing for the first time based on the target spark timing and the spark timing correction.
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Citations
20 Claims
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1. An engine control system for an auto-stop/start vehicle, comprising:
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an actuator control module that determines a target spark timing for a first time that is between a second time when engine cranking begins and a third time when a measured engine speed becomes greater than a predetermined engine speed after the second time; a correction determination module that determines a spark timing correction for the first time based on a target engine speed and a measured engine speed; and a spark adjustment module that sets a spark timing for the first time based on the target spark timing and the spark timing correction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An engine control method for an auto-stop/start vehicle, comprising:
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determining a target spark timing for a first time that is between a second time when engine cranking begins and a third time when a measured engine speed becomes greater than a predetermined engine speed after the second time; determining a spark timing correction for the first time based on a target engine speed and a measured engine speed; and setting a spark timing for the first time based on the target spark timing and the spark timing correction. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification