1. imc - Climatic Wind Tunnel Measurement
October 30, 2014
Andrew R Jesudowich
Sales and Operations Manager
imc USA

2. imc - Climatic Measurements
imc decentralized, and centralized measurement
systems in climatic applications

3. Climatic Measurement System
Road Dynamic-Based & Facility-Based
Modular measurement and control system

4. Climatic Measurement System
Today's challenges:
• Climate facility and road measurements grow together
alongside demanding requirements!
• Test procedures in wind tunnel and dynamic road based
testing have to be similar and comparable, results have to be
shared and correlated
• Time to market dictates development time and test time
• The number of channels/signals to be acquired is still
growing

5. Climatic Measurement System
Today's challenges:
 Analog sensors information are replaced increasingly by
CAN/LIN bus information
 ECU communication is necessary
 Single part and component tests are increasingly replaced by
function-unit or sub-system tests

6. Climatic Measurement System
A new test & measurement philosophy is needed!

7. Testing Requirements I:
 # of analog channels typically above 200
 CAN and LIN measurement + ECU communication
 system size needs to be adapted to smaller vehicles
 automatic measurement initiation, computer
independency …”Black Box Mode”
 cost-effective
 robust and versatile to extreme environments while
maintaining precision
 Extended operating temperature range from -40˚C
to +80˚C (in some cases up to 120˚C)
Road-Based Measurement

8. Testing Requirements II:
 simple to setup and control throughout testing
 intelligent on-board data reduction and virtual
calculations
 flexible, adaptable and modular
 compact with a low profile / footprint
 operation without PC (through driver display or as
“Black Box”)
 real time data transfer during road tests (via WLAN
or WAN communication networks)
Road-Based Measurement

9. Road-Based Measurement
Solution: imc turn key measurement and control
Modular Hardware
• Thermocouples
• RTD (PT100)
• Pressure
• Pulse input
• Voltage
• Current
• Digital I/O
• Analog outputs
• CAN/LIN bus
• ECU communication
Driver display
Thermo measurement system
CAN-BusHigh speed measurement system
imc CANSAS
Decentralized

10. imc mixed signal measurement and control solutions:
Road-Based Measurement

11. Road-Based Measurement
Sensor
Sensor
CAN
LIN
Measurement system
Sampling
Processing
Triggering
Online Processing
Storage
Communication
Visualization
Analog Technology
CAN Bus Technology

12. Road-Based Measurement
Measurement system
Driver
display
Setup-PC (office)
Thermo measurement
CAN-Bus
GPS
4G WAN
Systems with CF Fast industrial SSD card
for setup and data storage
Complete hardware measurement solution

13. Road-Based Measurement
The time to transfer remote, road based, measurement data to a data
server, must be capable of efficiently handling the transfer of the data.
imc LINK automatically transfers cold-start or heat soak measurement data
using modern communication hardware in near real time or as desired. It
bridges the gap between the user at the technical center and the data
source on the road.
Problems or areas of considerable interest may be evaluated quickly.

14. Road-Based Measurement
In addition to transferring measured data, imc
LINK can:
• transfer new configurations up to the
measurement system(s)
• display live status information and channel
data values from a measurement device
• Display live GPS position data on graphic
map overlays
Plus, imc LINK works with imc FAMOS to
automatically analyze, process and document
measurement results as data files are received
from the remote transfer.

15. Requirements wind tunnel measurement system I:
 # of analog channels typically above 50
 cost-effective
 compatible to road based dynamic measurements
 synchronous measurement between vehicle and wind-
tunnel control system
 expandable if required without compatibility problems or
large overhead
 Direct access to data base for configuration and data
storage
Facility-Based Measurement

16. Requirements wind tunnel measurement system II:
 Simple to configure, user interface for operators
 Computer aided, pre-configured display / panels …
 Extended temperature range from -40˚C to +80˚C (up to
120˚C)
 Distributed measurement system, measurement points at
tunnel and dyno
Facility-Based Measurement

17. Facility-Based Measurement
Distributed analog inputs
CAN bus
PC
wind tunnel
Measurement System
wind tunnel
Instrumentation for:
• dyno measurements,
• climatic conditions outside the car
• state of the climatic tunnel (intake, outlet,
solar conditions, speed etc.)
• transfers data to wind tunnel control unit
(via IP/UDP, EtherCAT, CAN, analog etc.)
Ethernet

18. Software
imc STUDIO: configuration,
measurement, real-time analysis &
documentation

19. Real-time Calculation
Easy-to-use real-time calculation using imc Online FAMOS:

20. Data logger wind tunnel
PC wind tunnel
Ethernet
Road test with up to 300
channels
Climatic Measurement System
Printout
Climatic wind tunnel
‘Drive-in & Measure’
time < 0.25h

21. Climatic Measurement System
Common advantages:
 System consists of standard products
 Expandable, unlimited channel count
 Physical sensors connected directly
 High quality inputs (differential/isolated)
 CAN/LIN bus
 Modern ECU communication

22. Climatic Measurement System
Common advantages:
 Real-time calculations & instant results
through Online FAMOS
 Synchronization of all systems inside and
outside the car
 High level of data safety and integrity
 -40˚C to 80˚C (120˚C), shock resistant
 “Drive-in & Measure” eliminates re-tooling /
instrumentation time
 Excellent price performance ratio

23. Climatic Measurement System
Advantages for road-based measurements
 Full measurement and control solution designed for
road based dynamic measurements
 Driver display for visualization and operation
 Black box operation / PC independent
 Uninterruptible power supply to ensure no loss of
data during measurement or during cold starts
 Simple configurations for complete mixed signal
channel setup
 Minimal wiring by utilizing CAN bus based distributed
measurement system inside facility

24. Realization and conclusion: measurement and
control solution to fulfil both dynamic and climatic
cell based measurements without retooling
 Audi
 Ford Europe
 PSA
 Renault
 VW
Climatic Measurement System

25. Thank you for your attention
More information: www.imc-dataworks.com