INTAKE AIR CONDITIONING - Testing Solutions for Passenger Cars

AVL ConsysAir
INTAKE AIR CONDITIONING
AVL Approach
There is a fare range covered by the 4 standard units. For special applications, specially designed systems can be delivered. The customer can choose between three different modes:
- Closed connection to the engine intake with pressure control (steady state engine operation)
- Closed connection to the engine intake with pressure control (dynamic engine operation)
- Open connection to the engine intake (using funnel) for temperature and humidity control only. Climate chambers and altitude simulations of several 1000m enable the simulation of extreme conditions on the testbed
Benefits at a Glance
- Optimized commissioning due to an established interface to AVL-PUMA as well as simplified interfaces for third-party automation systems
- The intake air's temperature, humidity and pressure can be predefined, irrespective of the actual ambient conditions at the testbed
- Excellent repeatability of the measuring values increases the efficiency of the test cell
- Compact and mobile design enables easy movement between different testbeds
- Test time saving by more repeatability measurement results
- Stable pressure control at dynamic test runs are possible by using the "Dynamic Package" option
Market Requirements
The performance and emissions of an internal combustion engine depends strongly on the intake air's parameters. It's essential for modern engine testbeds to control these parameters with a high degree of accuracy in order to increase the efficacy and quality of the development/certification.
Options
Altitude simulation with AVL ConsysAir
Altitude simulation with the standard AVL ConsysAir already enables you to run altitude simulations in a range of several hundred meters. On request, this range can be extended to 5000 meters even at dynamic engine operation.
Technical Data
|
AVL CONSYSAIR |
Classification |
CA 400, 800, 1600, 2400 |
Typical application |
Intake air conditioning / height simulation from pre-development up to racing applications |
Standard control range Temperature and accuracy |
15 bis 70°C +/- 0.5°C |
Advanced1 control range Temperature and accuracy |
-40 bis 90°C +/- 0.5°C |
Adjustment time temperature |
< 60 sec. |
Standard control range Pressure and accuracy |
+/- 100 mbar of the ambient pressure +/- 1 mbar |
Advanced1 control range Pressure and accuracy |
-400 bis + 200 mbar of the ambient pressure +/- 1 mbar |
Adjustment time pressure |
< 30 sec. |
Advanced1 adjustment time pressure |
< 3 sec. (Dynamic Package) |
Standard control range Moisture and accuracy |
8 bis 20 g H20/kg dry air |
Advanced1 control range Moisture and accuracy |
4 to 34 g H20/kg dry air |
Standard flow rate range |
400 to 2400 m3/h |
Advanced flow rate range |
Up to 7200 m3/h |
Dimension |
Starts with 2420 x 1050 x 1950 mm (L x W x H) |
Weight |
Starts with 800 kg |
1Advanced = options or modifications
References
The ConsysAir combustion air conditioning unit has been delivered 400 times around the world. There have also been a large number of customer-tailored systems for extreme conditions. These have included pressure ranges from -500 mbar to +200 mbar and temperatures from -40 °C to +90 °C.
Control Principle
The required air conditions are achieved by cooling (drying) and subsequent heating and/or moisturizing.The desired pressure will be produced by the blower or decreased by throttle valves. An internal air re-circulation system provides high control response also at low air flow rates.