scholarly journals Road-to-rig-to-desktop: Virtual development using real-time engine modelling and powertrain co-simulation

2018 ◽  
Vol 20 (7) ◽  
pp. 686-695 ◽  
Author(s):  
Jakob Andert ◽  
Feihong Xia ◽  
Serge Klein ◽  
Daniel Guse ◽  
Rene Savelsberg ◽  
...  
Keyword(s):  
Real Time ◽  
Development Process ◽  
Test Bench ◽  
Measurement Data ◽  
Design Parameters ◽  
Engine Test ◽  
Engine Test Bench ◽  
Vehicle Simulation ◽  
Engine Model ◽  
Vehicle Testing

By front-loading of the conventional vehicle testing to engine test bench or even further forward to offline simulations, it is possible to assess a large variation of powertrain design parameters and testing manoeuvres in the early development stages. This entails a substantial cost reduction compared to physical vehicle testing and hence an optimisation of the modern powertrain development process. This approach is often referred to as road-to-rig-to-desktop. To demonstrate the potential of this road-to-rig-to-desktop methodology as a seamless development process, a crank angle–resolved real-time engine model for a turbocharged gasoline engine was built with the simulation tool GT-POWER®. The model was validated with measurement data from an engine test bench and integrated into a vehicle co-simulation, which also includes a dual clutch transmission, the chassis, the environment and the automated driver. The most relevant functions of the engine and the transmission control systems were implemented in a Simulink-based software control unit. To verify the engine model in the transient vehicle simulation, two 900-s time windows from a 2-h real driving emission test, representing urban and motorway conditions, are simulated using the developed co-simulation platform. The simulation results are compared with the respective vehicle measurement data. The fuel consumption deviation caused by the combustion engine model is within 5%. The transient system behaviour and the dominant engine operation points could be predicted with a satisfying accuracy.

Virtual Turbine Engine Test Bench Using MGET Test Device

2014 ◽  
Author(s):  
Seong Hee Kho ◽  
Ja Young Ki ◽  
Chang Duk Kong
Keyword(s):  
Real Time ◽  
Test Bench ◽  
Operating Costs ◽  
Extreme Conditions ◽  
Engine Test ◽  
Engine Test Bench ◽  
Test Device ◽  
Turbine Engine ◽  
Engine Model ◽  
Engine Maintenance

Test device using virtual engine simulator can help reduce the number of engine tests through tests similar to the actual engine tests and repeat the test under the same condition, and thus reduce the engine maintenance and operating costs [1]. Also, as it is possible to easily implement extreme conditions in which it is hard to conduct actual tests, it can prevent engine damages that may happen during the actual engine test under such conditions. In this study, an upgraded MGET test device was developed that can conduct both real and virtual engine test by applying real-time engine model to the existing MGET test device that was developed and has been sold by the Company. This newly developed multi-purpose MGET test device is expected to be used for various educational and research purposes.

Virtual powertrain – Vehicle simulation on the engine test bench with an implemented P2 topology

2020 ◽  
pp. 377-392
Author(s):  
Sebastian Lachenmaier ◽  
L. Cross ◽  
C. Ferrara ◽  
A. Greis ◽  
M. Wüst ◽  
...  
Keyword(s):  
Test Bench ◽  
Engine Test ◽  
Engine Test Bench ◽  
Vehicle Simulation

Real-time co-simulation for the control of an engine test bench

ATZ worldwide ◽  
2014 ◽  
Vol 116 (2) ◽  
pp. 24-29 ◽  
Author(s):  
Josef Zehetner ◽  
DI Georg Stettinger ◽  
Helmut Kokal ◽  
Bart Toye
Keyword(s):  
Real Time ◽  
Test Bench ◽  
Engine Test ◽  
Engine Test Bench

REAL-TIME NONLINEAR INDIVIDUAL CYLINDER AIR FUEL RATIO OBSERVER ON A DIESEL ENGINE TEST BENCH

2005 ◽  
Vol 38 (1) ◽  
pp. 194-199 ◽  
Author(s):  
Jonathan Chauvin ◽  
Philippe Moulin ◽  
Gilles Corde ◽  
Nicolas Petit ◽  
Pierre Rouchon
Keyword(s):  
Diesel Engine ◽  
Real Time ◽  
Test Bench ◽  
Engine Test ◽  
Engine Test Bench ◽  
Fuel Ratio

Diesel Injector Coking: Optical-Chemical Analysis of Deposits and Influence on Injected Flow-Rate, Fuel Spray and Engine Performance

2012 ◽  
Vol 134 (6) ◽  
Author(s):  
S. d’Ambrosio ◽  
A. Ferrari
Keyword(s):  
Test Bench ◽  
Engine Performance ◽  
Injection Rate ◽  
Design Parameters ◽  
Diagnostic Model ◽  
Engine Test ◽  
Engine Test Bench ◽  
Hydraulic Test ◽  
Operating Variables ◽  
Time Histories

The physical origin of injector coking in diesel engines has been clarified and the most critical design parameters and operating variables pertaining to the occurrence of the phenomenon have been identified. Fouling has been shown to be affected by many factors, such as injector temperature, nozzle configuration, hole diameter and conicity as well as fuel composition. Optical and scanning electron microscope (SEM) analyses have been conducted both inside and outside injectors of different type and four locations have been identified as the main deposition sites. Furthermore, different coking typologies, i.e., dry and wet coking, have been assessed and discussed. Energy Dispersive X-ray (EDX) spectroscopy images of the deposits on the spray hole walls have revealed that minute quantities of Zn catalyze the coking reactions to a great extent. Significant quantities of Zn have also been found in the injector deposits. An extensive experimental test campaign has been carried out at the engine test bench with different nozzle setups in order to evaluate performance deterioration after different ageing procedures. The effects of both the Zn concentration in the fuel and running time have been assessed separately on the fouling rate. Injection rate time histories have been acquired at the hydraulic test rig, under different working conditions, for both new and aged injectors. The experimental changes in the EVI profiles subsequent to fouling have been analyzed and related to the corresponding variations in engine power measured at the engine test bench. A previously developed combustion multi-zone diagnostic model has also been applied to gain a further insight into the cause and effect relationships between the experimental in-cylinder pressure time histories and engine-out emissions.

scholarly journals Assessment of an electrical coolant pump on a heavy-duty diesel engine

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Markus Kiesenhofer
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Carbon Dioxide Emissions ◽  
Test Bench ◽  
Engine Test ◽  
The European Union ◽  
Engine Test Bench ◽  
Commercial Vehicles ◽  
Coolant Pump ◽  
Vehicle Class

AbstractHybridization of the drive train in commercial vehicles is a key solution toward meeting the strict future requirements to reduce carbon dioxide emissions within the European Union. In order to decrease fleet consumption a large number of different hybrid systems are already available in series in the passenger car sector. Due to the cheap and powerful 48 volt hybrid components and the lower hazard potential compared to high voltage, future commercial vehicles could also benefit from the 48V technology and contribute to lower fleet fuel consumption. Therefore, a complete 48V mild hybrid system was built on the diesel engine test bench as part of a research project. This paper highlights the utilization of a powerful 48V-motor to propel the coolant pump on a diesel engine of the 13-L commercial vehicle class. Three different drive variants of the coolant pump were implemented and measured on the diesel engine test bench. MATLAB®/Simulink®-simulations were conducted to assess the possible fuel savings in three different driving cycles. This paper provides a summary and interpretation of the measurement and simulation results. The simulation studies predict a decrease of fuel consumption of up to 0.94%. Furthermore, the additional advantages of electrified coolant pumps based on 48V are discussed.

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