Combustion & Fuels (Area A)
Robust Engine Solutions (Area C)
Digital Engine (Area D)
Integrated Systems (Area S)
Simulation & Validation (Area X)

The zero-dimensional analysis and simulation of the high-pressure part is based on one- and two-zone models. Various wall heat transfer models as well as different fuels (gasoline, diesel, natural gas, H2, etc.) and fuel combinations (dual-fuel) are taken into account. Combustion simulation is possible for a variety of modern combustion processes (open chamber, prechamber, DI, etc.). Nitrogen oxide emissions can be simulated as well as engine knock.
LEC CORA (Combustion Optimization, Research and Analysis) is a highly flexible innovative
software package for the analysis and simulation of the working process of combustion engines. The modular structure and the highly flexible input and output of LEC CORA allow fully automatic control by other programs for a wide range of applications. The optimized program code and the use of zero-dimensional analysis and simulation approaches ensure very short computing times.
The highly flexible software package can be used to analyze and simulate a wide range of processes in the combustion engine. LEC CORA can be flexibly adapted to customer requirements and can be integrated into simulation programs from other suppliers. LEC CORA was
was developed to close a gap: Although there are many software solutions for engine analysis, but they are often limited in their flexibility and especially in their use for highly specialized applications. This is exactly where LEC CORA comes in and focuses specifically on the
combustion engines – the area in which the LEC team has built up know-how and an international reputation over decades.
It can be used for various standard fuels, but also for H2 and NH3. Ongoing expansion to include other fuels and combustion systems is taking place on an ongoing basis.

ENERsim is a versatile simulation platform for the optimization of sustainable energy systems. The tool is used first for the design and then also for the optimization of generic energy systems. The goal of ENERsim is to perform economic, ecological and technical evaluations with respect to component dimensions and operating strategies based on suitable boundary conditions (e.g. energy profiles to be fulfilled as demands) and an application-specific plant layout. Thus, an optimal design can be found for new plant configurations or it is possible to test different operating strategies for already existing plants. For this purpose, generic, prepared elements can be used for a quick start, or all known detailed data of technical systems can be implemented and processed for complex investigations. Besides the simulation and presentation of the results for the considered system, an essential feature is the optimization possibility of ENERsim.

Many things can be measured. However, the quality and plausibility of the measurement data are crucial. LEC MCheck continuously analyzes the values measured on the test stand and immediately reports indications of possible incorrect measurements. Test rig operators can intervene at an early stage and in a targeted manner, since LEC MCheck already provides information about the sources of errors. Time-consuming manual troubleshooting is no longer necessary. LEC MCheck can be used on a wide variety of engine test benches with changing boundary conditions.
In practice, this means: Precise indication of the cause of the fault instead of “only” a red warning light: LEC MCheck offers a completely new possibility for early fault diagnosis on test benches of all kinds. The risk of cost-intensive forced breaks on the test bench is thus significantly reduced. And the measurement quality also increases. So how can this unique software be used in practice?
The tests on the test bench are a significant cost factor in engine development. It is therefore all the more important that the measurements are carried out efficiently. According to studies, faults that are detected too late lead to additional measurement effort of up to 40 percent. It also makes a big difference whether a fault is merely detected or whether the software explains precisely where the fault should be located. LEC MCheck can do exactly the latter.
Fault diagnosis through industry understanding and software expertise. The intelligent fault diagnosis software analyzes where the fault could come from. This is based on physical and data-based models, combined with expert knowledge that is integrated into the system by means of a library. The possibilities of digitalization are thus combined with the LEC team’s many years of experience and understanding of the industry – the result is highly innovative software that represents a completely new solution for fault diagnosis. Measurement quality is improved and valuable test bench time is saved.