MULTI FUNCTION EFFICIENT DYNAMIC ALTITUDE SIMULATION MEDAS
2 ACCURATE DYNAMIC EFFICIENT Altitude simulation for R&D The topic of Real Driving Emissions (RDE) is becoming more and more impor tant. Accurate testing is essential to ensure internal combustion engines meet global emission and modern performance standards under various altitudes during real driving conditions. Until now, altitude chambers have been used for this testing, but cost, flexibility, accuracy, and energy consumption have always been a concern. A unique tool, the MEDAS altitude simulator, has been designed specifically to address these concerns. This mobile solution meets all of today s and future market demands. It is extremely dynamic, highly accurate, and offers simulation options for Road-to-Rig and test cell level verification for RDE-related topics. By implementing new statutory requirements into the development process, the process can be drastically shortened, leading to time-savings. MEDAS can be utilized for engine intake and exhaust pressure, as well as temperature conditioning for engine and power train cells. It is also useful for chassis dynamometer applications covering steady state and dynamic engine operation conditions. MEDAS IS AN IDEAL SIMULATION TOOL FOR Global day-to-day correlation over different R&D locations Engine optimization & mapping Reduction of fuel consumption Performance improvement Emission optimization with focus on RDE HORIBA OFFERS THREE MAIN VERSIONS OF MEDAS MEDAS technical data Model MEDAS-5012 VO MEDAS-5009 V MEDAS-5012 V Operation Vacuum and Overpressure Vacuum Vacuum Altitude simulation height Up to 5,000 m Up to 5,000 m Up to 5,000 m Overpressure mode More than 2,000 m No No Mass flow Up to 1,200 kg/h Up to 900 kg/h Up to 1,200 kg/h Dimensions (H x W x L) 1,600 x 1,150 x 2,816 mm 1,600 x 1,150 x 2,040 mm 1,600 x 1,150 x 2,816 mm Weight Approx. 1,800 kg Approx. 1,300 kg Approx. 1,800 kg Power 45 kw 45 kw 45 kw
3 STAY UP-TO-DATE ON SIMULATION Get control of your parameters Stay up-to-date on RDE, Rig-to-Rig and Road-to-Rig correlation as well as validation / verification / fuel efficiency. MEDAS has been developed using efficient energy consumption technology, which is powered via electric motor driven chargers and compressors. They work with ultra-high-speed components to generate the required intake air and exhaust conditions to the engine in time with highest accuracy. This eliminates the need for huge media storage buffer as has been required in the past. Due to this technical approach MEDAS is ahead of traditional equipment and achieves a high level of energy efficiency based on its function principle. The tubing of electrical motor with ultra-high-speed charger components, waste gate and flaps is controlled via MEDAS processor which allows alternate vacuum and pressurized operation. MEDAS is your affordable engine conditioning system that covers real altitude conditions. PRESSURE (bar) 0.36 0.41 0.47 0.54 0.62 0.70 0.79 0.90 1.01 100 Overpressure mode 50 T ( C) T ROOM Vacuum mode T = -10 C T WATER T ( C) -20 T = -22 C 5,000 m ISA 2,000 m -40 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 ALTITUDE (m) Temperature control range in dependence of simulated altitude, for vacuum and overpressure operation modes. MEDAS MTM covers the full temperature range (see page 5 and 6). CONTROL INTAKE AIR AND EXHAUST PRESSURE In the application fi eld of combustion related engine mapping, internal parameters like intake air and exhaust pressure are significantly impor tant for fuel economy and emission reduction, as well as engine performance. SIMULATE NATURE DRIVEN TEMPERATURE EFFECTS BY VACUUM / PRESSURE CAPABILITY Effective for uphill and downhill simulation, MEDAS is an essential tool for global R&D and dayto-day correlation tasks on different altitude levels in respect of altitude correlating temperatures as well.
4 FLEXIBLE FOR STEADY STATE AND DYNAMIC APPLICATION If you are dealing with RDE development targets, MEDAS offers you simulation of altitude or ambient conditions under desired temperature, humidity and pressure. Correlation of pressure and mass flow at engine intake and exhaust ensures exact conditions at your engine under test. PRESSURE (bar) MASS FLOW (kg / h) 2,000 1,500 1,000 500 0.36 0.41 0.47 0.54 0.62 0.70 0.79 0.90 1.01 MEDAS-5012 VO in overpressure mode MEDAS-5012 VO in vacuum mode MEDAS-5009 V in vacuum mode 1,200 KG /H (5012 VO) 900 KG /H (5009 V) 720 KG /H (5012 VO) 520 KG /H (5009 V) 5,000 m 2,000 m non-covered area for MEDAS-5012 non-covered area for MEDAS-5009 0 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 ALTITUDE (m) MEDAS operation range as a function of altitude and mass flow. Functional extensions can compensate for non-covered area (see page 5 and 6). EASY TO OPERATE You can operate MEDAS via standard interface automation or by using the interactive touch screen to select on-demand values and simulation monitoring as a standalone unit as well.
5 MEDAS FUNCTIONAL EXTENSIONS Simulating Realistic Altitude Profiles New legislation requires automotive manufacturers to test their vehicles at defined and varying altitudes to reflect actual driving conditions. Two additional options are available to ensure compliance with the new standards: the MEDAS Temperature Module (MTM) and the MEDAS Humidity Module (MHM). These additional modules allow tests to be carried out in a temperature range of -15 to 40 C at altitudes up to 5,000 meters above sea level and respective humidity from 10 to 80 % as a standard. The functional extensions enable simulations within a wider range of ambient pressure, temperature and humidity at the engine intake and exhaust, which means that various tests (such as performance, emission or durability testing) can be carried out on an engine operating in any ambient condition and in any test cell. Compact MEDAS cabinet for fl exible test cell integration Model Mass flow (kg / h) Pressure Temperature Humidity Vacuum Overpressure Cooling Heating Drying Humidifying MEDAS-5009 V 900 Limited MEDAS-5012 V 1,200 Limited MEDAS-5012 V0 1,200 Limited Limited MEDAS + MTM 900 / 1,200 Limited MEDAS + MTM + MHM 900 / 1,200 FEATURES Ability to perform any RDE test on the chassis dynamometer Measurements up to 5,000 m Global correlation of measurement results Simulated temperature range of -15 to 40 C Simulated humidity range of 10 to 80 %
6 MEDAS TEMPERATURE MODULE The MEDAS Temperature Module (MTM) is a complementary option for the MEDAS altitude simulator. The MTM extends the temperature range available for altitude testing. This makes it possible to simulate any temperature between -15 and 40 C, at altitudes ranging from sea level to 5,000 m above sea level independently of the location and also under dynamic operation. MEDAS HUMIDITY MODULE THE MEDAS Humidity Module (MHM) is an extension module for humidity control that operates in connection with MEDAS and the MTM. The MHM allows engine intake humidity to be controlled within the range of 10 to 80 % at any given altitude and temperature. Easy set-up of MEDAS with MTM and MHM
7 BENEFITS A wide simulation range and extreme flexibility SIMULATE POSITIVE & NEGATIVE PRESSURE One system for positive & negative pressure Steady state and dynamic testing Simulates a run from sea-level up to 5,000 meters in few seconds Simulate exact conditions on engine intake and exhaust HIGH ACCURACY AND PERFORMANCE Capable to follow dynamic transient cycle and corresponding engine dynamics Accuracy: better than +/- 10 meters Real driving behavior due to high-speed process components High repeatability MOBILE SYSTEM MEDAS is designed for flexible usage Can be shared among test cells expandable by additional components for humidity and temperature conditioning Highly flexible interfacing via standards EFFICIENT Best efficiency due to ultra-high-speed operation High energy efficiency Simple adaptation and standard HMI enables easy operation RELIABLE Spare parts are globally available Easy maintenance Simple engine integrity BENEFITS OF TEMPERATURE AND HUMIDITY MODULES Dynamic and steady state simulation of different altitude, temperature and humidity profiles Easy integration into existing MEDAS and any test cell Improved measurement accuracy and repeatability allow for global day-to-day correlation in different test centers and under different environmental conditions around the world Increased efficiency due to free cooling power obtained in the gas expansion over the VGT
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