MEDAS

MEDAS - Altitude Simulation
MEDAS - Altitude Testing
MEDAS Altitude Simulation

Altitude Simulation

The MEDAS system is a compact altitude simulator that reproduces a wide range of environmental conditions. It allows for testing light- to heavy-duty vehicles, including Non-Road Mobile Machinery (NRMM). It is ideally suited for a range of testing applications, such as durability, RDE replication, emission tests and mapping as well as tests from component to vehicle level. The patented technology inside the MEDAS system allows dynamic changes on the simulated atmosphere with high accuracy. The system can also be moved between different test cells due to its compact design.

 

 

Division: Mechatronics
Manufacturing Company: HORIBA Europe GmbH

MEDAS enables measurements up to 5,000m with a simulated temperature range from -45 to 50 °C (with the MEDAS Temperature Module) and a simulated humdity range of 5 to 95 % (with the MEDAS Humidity Module).

  • Suitable for different test cell configurations (e. g. engine, vehicle, powertrain)
  • Full integration with test cell control through CAN
  • Two MEDAS systems can be coupled in parallel to multiply the mass flow
  • No limit on minimum engine flow rate
  • Additional options available, e. g. noise insulation  

 

Key Benefits 

From Road to Laboratory

The MEDAS system increases flexibility by offering a modular design, which can be adjusted for a wide range of different test environments and possible applications. It allows any worldwide atmospheric condition to be reproduced inside the test cell. For a complete real driving correlation (such as emissions correlation), an integration with other testing equipment is possible.

FLEXIBLE  

  • Flexible concept with extended temperature and humidity modules
  • Can be moved between different test cells
  • Suitable for a wide range of applications, from light-duty (e.g. motorcycles) up to heavy-duty engines, including NRMM

 

  DYNAMIC  

  • Can simulate changing ambient pressure, temperature and humidity
  • Very fast response time for replication of real driving tests

 

EFFICIENT  

  • Precise and repeatable, even during high engine dynamics
  • Patented design and internal algorithms reduce power requirements while ensuring robust results

 

SystemExhaust Mass Flow [kg/h]Max. Engine Mass Flow [kg/h]Altitude Range at Max. Mass Flow [m]Temperature [°C]Humidity [g/kg]
VacuumOverpressure
MEDAS-5012 V1200960750 to 5000   -Limited-
MEDAS-5012 VO1200960750 to 5000-2000 to -750Limited 
MEDAS-5015 V 15001200350 to 5000-Limited -
MEDAS-5015 VO15001200350 to 5000-2000 to 350Limited -
MEDAS-5050 V (HD)50004000200 to 5000---
MEDAS + MTM ST900 - 1200 - 1500 - 5000720 - 960 - 1200 - 40000 to 5000-2000 to 0-45 to 50°COnly drying 
MEDAS + MTM HU + MHM900 - 1200 - 1500 - 5000720 - 960 - 1200 - 40000 to 5000-2000 to 0-45 to 50°C2 to 65 
Altitude Simulation on the chassis dynamometer
Altitude Simulation on the chassis dynamometer
RDE tests on the chassis dynamometer
RDE tests on the chassis dynamometer

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