Closed Loop Control at Engine Management System MOTRONIC 880135
Engine management control systems basically consist of injection and ignition control. Additionally, closed loop control systems incorporating air fuel ratio control, automatic idle speed control and cylinder selective knock control have proven to be essential.
To keep the performance stable during the car's lifetime, extensive use is made of self-adaptive strategies. As a new feature of engine management control, the self-adaptive canister purge control improves driveability and prevents the leakage of fuel vapors. To simplify the closed loop control algorithms primarily during transient operation conditions a sophisticated sequential fuel injection is added. The paper presents the aforementioned self-adaptive closed loop control strategies and the MOTRONIC MI. 3 ECU. Future development trends in engine management and drive train control demand powerful communication links like the Controller Area Network (CAN). This requirement and its planned realisation is discussed.
Citation: Kaiser, G., Zechnail, M., and Plapp, G., "Closed Loop Control at Engine Management System MOTRONIC," SAE Technical Paper 880135, 1988, https://doi.org/10.4271/880135. Download Citation
Author(s):
Günther Kaiser, Martin Zechnail, Günther Plapp
Affiliated:
Robert Bosch GmbH
Pages: 12
Event:
SAE International Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Engine and Driveline Control Systems-New Developments and Trends-SP-0739
Related Topics:
Air / fuel ratio
Fuel injection
Control systems
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