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Enhanced Injector Dead Time Compensation by Current Feedback
Technical Paper
2016-01-0088
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The constant motivation for lower fuel consumption and emission levels has always been in the minds of most auto makers. Therefore, it is important to have precise control of the fuel being delivered into the engine.
Gasoline Port fuel injection has been a matured system for many years and cars sold in emerging markets still favor such system due to its less system complexity and cost.
This paper will explain injection control strategy of today during development, and especially the injector dead-time compensation strategy in detail and how further improvements could still be made. The injector current profile behavior will be discussed, and with the use of minimum hardware electronics, this paper will show the way for a new compensation strategy to be adopted. In conclusion, this compensation strategy would show how fuel mass could be accurately delivered into the cylinder, in-spite of actuator parameters (resistance/inductance) change with temperature and actuator positive terminal voltage fluctuation in the field. In other words, this helps to address production variation of injectors and their subsequent aging effect.
The product of TLE8888, Infineon U-chip, used as injector driver will be used to support the discussion in this paper.
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Tan, T., Park, J., and Leteinturier, P., "Enhanced Injector Dead Time Compensation by Current Feedback," SAE Technical Paper 2016-01-0088, 2016, https://doi.org/10.4271/2016-01-0088.Also In
References
- Heintz , N. , Mews , M. , Stier , G. , Beaumont , A. et al. An Approach to Torque-Based Engine Management Systems SAE Technical Paper 2001-01-0269 2001 10.4271/2001-01-0269
- Gerhardt , J. , Hönninger , H. , and Bischof , H. A New Approach to Functional and Software Structure for Engine Management Systems - BOSCH ME7 SAE Technical Paper 980801 1998 10.4271/980801
- Air/Fuel ratio control system for internal combustion engine.US 5363648A
- Fuel Injection control System for in-cylinder injection internal combustion engine US 5794586
- Smart High-Side Switches (Infineon Application Note titled: What the Designer should know/Short introduction to Profet TM +12, REV1.0 2010/12/15 by Stephane Fraisse)
- Toyota sales U.S.A Introduction to combustion chemistry