Invention Grant
- Patent Title: Method for controlling an internal combustion engine
- Patent Title (中): 用于控制内燃机的方法
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Application No.: US12221722Application Date: 2008-08-06
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Publication No.: US07788018B2Publication Date: 2010-08-31
- Inventor: Ralf Speetzen , Günther Schmidt , Albert Kloos , Andreas Kunz , Michael Willmann , Jörge Remele , Marc Hehle
- Applicant: Ralf Speetzen , Günther Schmidt , Albert Kloos , Andreas Kunz , Michael Willmann , Jörge Remele , Marc Hehle
- Applicant Address: DE Friedrichshafen
- Assignee: MTU Friedrichshafen GmbH
- Current Assignee: MTU Friedrichshafen GmbH
- Current Assignee Address: DE Friedrichshafen
- Agency: Lucas & Mercanti, LLP
- Agent Klaus P. Stoffel
- Priority: DE102007037037 20070806
- Main IPC: B60T7/12
- IPC: B60T7/12 ; F02M35/00

Abstract:
A method for controlling an internal combustion engine having a common rail system together with individual accumulators. A rotational speed-control deviation (dn) is determined from a target rotational speed (nSL) that represents the set point for an outer control loop to control the rotational speed, as well as from an actual rotational speed (nIST). A target torque (MSL) is determined from the rotational speed-control deviation (dn) via a rotational speed controller as a master controller. A target injection duration (SD(SOLL)) is determined from the target torque (MSL). The target duration injection (SD(SOLL)) represents the set point for an inner control loop for controlling cylinder-specific injection duration. An injection duration deviation is determined from the target injection duration (SD(SOLL)) and from an actual injection duration. A correcting variable is determined from the injection duration deviation via an injection duration controller as a follow-up controller, and an injection duration is determined from the correcting variable and the target injection duration for activating the injectors.
Public/Granted literature
- US20090043482A1 Method for controlling an internal combustion engine Public/Granted day:2009-02-12
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