Software Hierarchy for Controlling Multiple Injection Events
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United States of America Patent
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Issued Date -
May 1, 2014
app pub date -
Jul 3, 2013
filing date -
Oct 30, 2012
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Abstract
An engine control system may be implemented with a multi-tier, or multi-layer software hierarchy, or modular algorithms (algorithm modules) to control injection events. In a first hierarchy, the program instructions may be executed to define time periods during which a series of fuel injections of an engine take place. In a second hierarchy, the program instructions may be executed to generate control commands during the defined time periods. In a third hierarchy, the program instructions may be executed to adapt the control commands to a specified injector type. Finally, in a fourth hierarchy, the program instructions may be executed to map the adapted control commands to physical hardware configured to perform the series of fuel injections. Execution of the program instructions may be carried out in any desired combination of software executed by one or more processing elements, implemented in an FPGA, and/or coded in hardware.
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