Browse Publications Technical Papers 2009-01-1128
2009-04-20

A Study on Ignition Timing and Combustion Switching Control of Gasoline HCCI Engine 2009-01-1128

As for homogeneous charge compression ignition (HCCI) combustion, many parameters influence on self-ignition timing. We formulated a self-ignition timing simulation model. A control algorithm for HCCI engine has been formulated on the basis of this self-ignition timing simulation model. And the application of the control algorithm to a 4-cylinder engine provided with an electromagnetic valve train demonstrated that it was possible to control HCCI combustion in response to operating conditions. In addition, when switching between spark ignition and HCCI operation, the control algorithm for HCCI engine compensating for the difference in exhaust temperature and the fuel wall-wetting compensating algorithm have enabled switching without torque shock.

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