FUEL INJECTION CONTROL METHOD AND FUEL INJECTION CONTROL SYSTEM FOR DIESEL ENGINE
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United States of America Patent
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Issued Date -
Feb 25, 2021
app pub date -
May 17, 2017
filing date -
May 17, 2017
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Abstract
A fuel injection control system for a diesel engine configured to perform multiple fuel injections to induce multiple combustions. A PCM is configured to, during compression stroke, perform a main injection and multiple pre-stage injections prior to the main injection, and to cause a ratio of a maximum injection amount of the multiple pre-stage injections to an injection amount of the main injection to become smaller when the load of the diesel engine is less than a given load than when the load of the diesel engine is greater than the given load, and cause an injection interval between the main injection and one of the multiple pre-stage injections immediately preceding the main injection to become smaller when the load of the diesel engine is less than the given load than when the load of the diesel engine is greater than the given load.
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