/ 139 MOBILE FUEL CONSUMPTION MEASUREMENT AVL KMA Mobile The AVL KMA Mobile is an in-vehicle fuel consumption measurement system that sets standards regarding relia��ility, ��e��i��ility and precision. Due to the modular design, the measurement system can be adapted to the different requirements. For example, engines without return ��ow re��uire only the measuring module while engines with return ��ow to the tank re��uire the measuring and the conditioning module. Thanks to the three measurement ranges each system covers a large range of vehicles and engine types, from two-wheelers to large construction vehicles. Dynamic measurements combined with high measurement quality (accuracy, reproducibility) can be achieved due to very short response time (100 ms) and very short measurement time. MEASUREMENT PRINCIPLE The AVL KMA Mobile measurement system uses the worldwide approved PLU measurement principle of the servo-controlled positive displacement meter ����p �� 0��. The positive displacement meter is driven by a servo motor (7) so that the differential pressure across the meter is controlled to “zero”. This differential pressure of zero between sensor inlet (1) and outlet (6) results in an absence of leakage ��ows within the PLU sensor that could affect the measurement result. As the sensor does not cause a pressure drop, wear and tear on the sensor are minimized. APPLICATION The universal fuel measurement system AVL KMA Mobile is used for fuel consumption measurement in vehicle road testing and at chassis dynamometer testbeds. The AVL KMA Mobile is available with different PLU sensors and, thus, allows for measuring ��ows between 0.16 l/h and 300 l/h. Hence, all applications from passenger cars to heavy commercial vehicles are covered. BENEFITS AT A GLANCE • Due to its universal applicability, the AVL KMA Mobile can be used with all common vehicle fuel delivery systems • Reliable road test results are guaranteed by high measurement accuracy, reproducibility and robustness • Due to engine supply and return pressure adjustment capability, the measurement system does not have any in��uences on the engine fuel system • Simple handling due to modular design and the application of self-sealing quick couplers facilitates integration in the vehicle 6 7 10 9 8 1 2 3 5 1 Einlass 2 Zahnradzähler 3 Positionssensor 4 Kolben 5 Bypass 6 Auslass 7 Servomotor 8 Impulsgeber 9 Regler 10 Signalausgang 4 1 Inlet 2 Gear meter 3 Piston sensor 4 Piston 5 Bypass 6 Outlet 7 Servo motor 8 Encoder 9 Controller 10 Signal output
Solutionskatalog_2017_E
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