کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
699553 890776 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Piezoelectric fuel injection: Cycle-to-cycle control of tightly spaced injections
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
پیش نمایش صفحه اول مقاله
Piezoelectric fuel injection: Cycle-to-cycle control of tightly spaced injections
چکیده انگلیسی

Piezoelectric fuel injectors will require closed-loop control to realize tightly spaced injections. This paper describes an estimation algorithm for cycle-to-cycle determination of an injection flow profile for use as feedback for closed-loop control. A control design-amenable, 2-pulse approximate model is outlined to represent the dynamics of simultaneously controlling the quantity of, and realized dwell time between, injection pulses. A control law is developed to provide an overdamped response of realized dwell time to prevent pulse bleeding. Closed-loop performance is validated with the experimental data. Desired fuel quantity, and very short dwell times of 0.0002 s (two crank angle degrees at 1800 RPM), are realized with tracking error convergence time constants of approximately four engine cycles (0.27 s at 1800 RPM).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Control Engineering Practice - Volume 20, Issue 11, November 2012, Pages 1175–1182
نویسندگان
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