By Rolf Isermann
The expanding calls for for inner combustion engines in regards to gasoline intake, emissions and driveability bring about extra actuators, sensors and complicated keep an eye on capabilities. a scientific implementation of the digital keep watch over structures calls for mathematical versions from simple layout via simulation to calibration.
The booklet treats physically-based in addition to types established experimentally on try benches for gas (spark ignition) and diesel (compression ignition) engines and makes use of them for the layout of the various keep an eye on capabilities. the most subject matters are:
- improvement steps for engine control
- desk bound and dynamic experimental modeling
- actual versions of consumption, combustion, mechanical process, turbocharger, exhaust, cooling, lubrication, force train
- Engine keep an eye on buildings, undefined, software program, actuators, sensors, gas provide, injection procedure, camshaft
- Engine keep an eye on equipment, static and dynamic feedforward and suggestions keep an eye on, calibration and optimization, HiL, RCP, keep an eye on software program development
- keep an eye on of gas engines, keep an eye on of air/fuel, ignition, knock, idle, coolant, adaptive keep watch over functions
- keep watch over of diesel engines, combustion versions, ventilation and exhaust recirculation keep watch over, combustion-pressure-based keep watch over (HCCI), optimization of feedforward and suggestions keep watch over, smoke hassle and emission control
This e-book is an advent to digital engine administration with many sensible examples, measurements and learn effects. it really is aimed toward complex scholars of electric, mechanical, mechatronic and regulate engineering and at working towards engineers within the box of combustion engine and automobile engineering.
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Example text
For engine, driveline and vehicle. Springer, Berlin K¨ohler E, Flierl R (2012) Verbrennungsmotoren, 6th edn. Vieweg, Wiesbaden K¨onigstein A, Grebe U, Wu K, Larsson P (2008) Differentiated analysis of downsizing concepts. MTZ worldwide edition 69(6):4–11 Merker G, Schwarz C, Teichmann R (eds) (2012) Combustion engines development. Springer, Berlin Mollenhauer K, Tsch¨oke H (2010) Handbook of diesel engines. Springer, Berlin Pischinger R, Kell M, Sams T (2009) Thermodynamik der Verbrennungskraftmaschinen, 3rd edn.
The irreversible transients are described by phenomenological equations. 8) = −λ gradz T ∂z (q˙z heat flow density, λ thermal conductivity, T temperature, z space coordinate). Other examples are Fick’s law of diffusion and Ohm’s law of electrical current. 9) and are linear in a wide range. 11) (rz reaction rate, k reaction rate coefficient, cAi concentration of component Ai , E activation energy, k∞ frequency factor). g. in the case of viscous friction or Ohm’s resistances, and partially strong nonlinear behavior as in the case of throttles or friction.
9) and are linear in a wide range. 11) (rz reaction rate, k reaction rate coefficient, cAi concentration of component Ai , E activation energy, k∞ frequency factor). g. in the case of viscous friction or Ohm’s resistances, and partially strong nonlinear behavior as in the case of throttles or friction. g. 9) is necessary because the gradient is used with regard to the location). Dry friction has a direction-dependent discontinuous characteristic curve F = FG0 F = −FG0 z˙ > 0 z˙ < 0. 13) This leads to force-displacement characteristics in the form of rectangular hysteresis characteristics, whose range depends on the amplitude z0 , Isermann (2005).