Efficient commercial powertrains – How to achieve a 30% GHG reduction in 2030

Put, Dieter van der; Heuser, Peter; Aubeck, Ferenc; Lindemann, Bernd; Müther, Martin; Schönen, Markus; Ehrly, Markus; Schaub, Joschka; Walters, Marius; Virnich, Lukas; Sammito, Giuseppe; Bi, Luping; Lüdiger, Thomas

doi:10.1007/978-3-658-34362-0_19

Cited by 2 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is done using the heat release rate multiplier (B T, bz (a)), engine specific tunable parameters (C gl and A T, bz ) and the global relative air-fuel ratio (l gl ) as shown in the equations ( 7)- (10). The derived equations along with the ideal gas law applied on both zones are used to create a formulation for the crank-angle resolved burned zone temperature as shown in equation (11).…”

Section: Temperature Controlled Combustionmentioning

confidence: 99%

“…9 The latter application is currently being pursued, particularly for commercial applications in heavy-duty vehicles and construction equipment. 10,11…”

Section: Introductionmentioning

confidence: 99%

“…9 The latter application is currently being pursued, particularly for commercial applications in heavy-duty vehicles and construction equipment. 10,11 These solutions offer CO 2 free mobility and very low pollutant emissions, but the technology is still not mature for series introduction. 12 Hence, to meet the proposed new standards in the short-term, the further development of internal combustion engines for medium and heavy-duty applications that have to run on conventional fuels continues to play an important role.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Advanced model-based closed-loop combustion control strategies with combustion rate shaping

Srivastava

Schaub

Pischinger

2023

International Journal of Engine Research

Self Cite

View full text Add to dashboard Cite

Combustion rate shaping (CRS) is an advanced closed-loop concept which controls the crank-angle resolved combustion trace by adapting the fuel injection profile. The thermodynamic potential of this concept to enable real-time combustion control independent of fuel property variations, injector drift, cylinder tolerances, or changing air-path boundary conditions has already been demonstrated. The highest benefit of this control concept is achieved when it is directly applied on the engine control unit (ECU) in combination with an in-cylinder pressure measurement. This enables online optimization and adaption of the fuel- and air-path settings to the fuel used during vehicle operation. Therefore, the development of a CRS concept with real-time capability has been the main focus so far. To ensure a robust online real-time combustion control, a key development step was the identification of control variables that describe the entire combustion process and only minimally influence each other. For this purpose, the combustion phasing, the combustion gradient and the indicated mean effective pressure have been determined as parameters for the feedback control. However, the stringent requirements for higher efficiencies, emission robustness and combustion noise necessitate the extension of the CRS control concept. Therefore, in this work, the CRS control concept is extended with the aim of realizing a combustion with constant volume pressure increase to the peak firing pressure limit to achieve highest efficiency. In addition, intelligent control of the fuel injection profile is to be used to achieve a combustion temperature for lowest possible NOx raw emissions and a robust combustion noise excitation limitation. The optimized control strategy is implemented on a heavy-duty single cylinder engine test bench using a Rapid Control Prototyping (RCP) system, and the control performance is demonstrated.

show abstract

Section: Temperature Controlled Combustionmentioning

confidence: 99%

“…9 The latter application is currently being pursued, particularly for commercial applications in heavy-duty vehicles and construction equipment. 10,11…”

Section: Introductionmentioning

confidence: 99%