Flatness-based control for an internal combustion engine cooling system

Aschemann, Harald; Prabel, Robert; Groß, Christian; Schindele, Dominik

doi:10.1109/icmech.2011.5971271

Cited by 19 publications

(6 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The generated heat in the radiator fan heat exchanger component can be divided into passive and active parts 27 as follows…”

Section: Control-oriented Engine Cooling System Modelingmentioning

confidence: 99%

Development of on-line neural network based adaptive fractional-order sliding mode robust controller on electromechanically actuated engine cooling system

Kaleli

2021

Proceedings of the Institution of Mechanical Engineers, Part I:

View full text Add to dashboard Cite

The reduction of temperature fluctuations around desired reference and control input energy for cooling actuators are among the most important aims of engine thermal management system. However, maintaining of engine/radiator outlet temperature within certain limits is a challenging process in different engine operating conditions due to unknown in-cylinder variable heat transfer rate in terms of the control theory. For this purpose, the thermodynamic model is obtained by dividing into two subsystems, such as the engine and the radiator subsystem in the presence of unknown heat transfer rate, external disturbance, and uncertainties in this study. To increase system robustness, tracking engine inlet/outlet temperature control of engine cooling components is performed using the adaptive fractional-order sliding mode control structure. Moreover, the disturbances acting on the system and unknown heat transfer dynamics of the system are estimated with a radial basis function on-line neural network estimator. The efficiency of proposed controller strategy for electromechanically actuated engine cooling system is compared by proportional–integral–derivative and classical integral sliding mode control under the NEDC (New European Driving Cycle) and WLTP (Worldwide Harmonized Light Vehicles Procedure) transient operating conditions. The temperature error tracking performance is tested by paying attention integral square error, integral absolute error, integral time-weighted absolute error along to the driving cycles. The obtained results showed that the adaptive fractional-order sliding mode control–based engine cooling system outperforms compared to the optimally gain tuned proportional–integral–derivative and integral sliding mode control schemes in terms of reducing of tracking error and engine cooling actuators energy consumption for all engine operating cycles.

show abstract

“…The generated heat in the radiator fan heat exchanger component can be divided into passive and active parts 27 as follows…”

Section: Control-oriented Engine Cooling System Modelingmentioning

confidence: 99%

Development of on-line neural network based adaptive fractional-order sliding mode robust controller on electromechanically actuated engine cooling system

Kaleli

2021

Proceedings of the Institution of Mechanical Engineers, Part I:

View full text Add to dashboard Cite

show abstract

“…With the above computed impulse response (16) in the time domain the inputoutput relation corresponding to G F (z, s) = G 2 (z)G 3 (z, s) is given by the convolution ( ) of g F (z, t) = G 2 (z)g 3 (z, t) and the delayed input T del m,in (•) by:…”

Section: Constant Flow Rate and Perfect Isolationmentioning

confidence: 99%

“…Such models are preferred for example for automotive cooling loops (cf. [16]). The derivation of the model equations starting from ( 1) is sketched below.…”

Section: Ordinary-differential Equation-approachmentioning

confidence: 99%

On delay partial differential and delay differential thermal models for variable pipe flow

Wurm

Bachler

Woittennek

2020

International Journal of Heat and Mass Transfer

View full text Add to dashboard Cite

A new formulation of physical thermal models for variable plug flow through a pipe is proposed. The derived model is based on a commonly used onedimensional distributed parameter model, which explicitly takes into account the heat capacity of the jacket of the pipe. The main result of the present contribution is the constitution of the equivalence of this model with a serial connection of a pure delay or transport system and another partial-differential equation (PDE), subsequently called delay-partial-differential equation (DPDE)-model. The means for obtaining the proposed model comprise operational calculus in the Laplace domain as well as classical theory of characteristics. The finitedimensional approximation of the DPDE-model leads to a delay-differential equation (DDE)-system, which can be seen as a generalization of commonly used DDE-models consisting of a first-order low-pass filter subject to an input delay. The proposed model is compared to several alternative models in simulations and experimental studies.

show abstract

“…Indeed, simulation models are very useful for engineers not only to support but also to reduce the amount of testing required during the design of the engine. Numerical models and simulations can greatly enhance development efforts by predicting performance trends and trade-offs and will, therefore, result in more efficient and better-optimized heating and cooling systems for high-performing engines [9][10][11][12][13][14]. Specifically, due to the wide spatial and temporal scales involved in internal combustion engine simulations, steady and unsteady Reynolds-averaged Navier-Stokes (RANS) solvers are largely employed supporting the rational design of such engines.…”

Section: Introductionmentioning

confidence: 99%

Liquid-Cooling System of an Aircraft Compression Ignition Engine: A CFD Analysis

Coclite

Faruoli

Viggiano

et al. 2020

Fluids

View full text Add to dashboard Cite

The present work deals with an analysis of the cooling system for a two-stroke aircraft engine with compression ignition. This analysis is carried out by means of a 3D finite-volume RANS equations solver with k- ϵ closure. Three different cooling system geometries are critically compared with a discussion on the capabilities and limitations of each technical solution. A first configuration of such a system is considered and analyzed by evaluating the pressure loss across the system as a function of the inlet mass-flow rate. Moreover, the velocity and vorticity patterns are analyzed to highlight the features of the flow structure. Thermal effects on the engine structure are also taken into account and the cooling system performance is assessed as a function of both the inlet mass-flow rate and the cylinder jackets temperatures. Then, by considering the main thermo-fluid dynamics features obtained in the case of the first configuration, two geometrical modifications are proposed to improve the efficiency of the system. As regards the first modification, the fluid intake is split in two manifolds by keeping the same total mass-flow rate. As regards the second configuration, a new single-inlet geometry is designed by inserting restrictions and enlargements within the cooling system to constrain the coolant flow through the cylinder jackets and by moving downstream the outflow section. It is shown that the second geometry modification achieves the best performances by improving the overall transferred heat of about 20% with respect to the first one, while keeping the three cylinders only slightly unevenly cooled. However, an increase of the flow characteristic loads occurs due to the geometrical restrictions and enlargements of the cooling system.

show abstract

Flatness-based control for an internal combustion engine cooling system

Cited by 19 publications

References 5 publications

Development of on-line neural network based adaptive fractional-order sliding mode robust controller on electromechanically actuated engine cooling system

Development of on-line neural network based adaptive fractional-order sliding mode robust controller on electromechanically actuated engine cooling system

On delay partial differential and delay differential thermal models for variable pipe flow

Liquid-Cooling System of an Aircraft Compression Ignition Engine: A CFD Analysis

Contact Info

Product

Resources

About