Menu In-vehicle NVH Testing Home Applications Production Testing Add objectivity to your assessments Customer satisfaction drives the entire passenger vehicle powertrain NVH market and the ultimate verification of a product’s performance is how that product is perceived in-vehicle. PLATO systems are used in-vehicle to provide objective assessments of NVH and, because the same core software is used that operates with factory-based systems, in-vehicle results can be used to optimise end-of-line assessment metrics and pass/fail boundaries. Purpose-designed hardware The ABD VP106 is the perfect frontend for PLATO based in-vehicle measurements. It powers and conditions up four NVH sensors (e.g. microphones, accelerometers) together with a separate RPM (tacho) signal, and it incorporates a National Instruments™ USB-4432 5-channel DAQ-module to link effortlessly to your laptop or tablet PC; providing sampled data with 24-bit precision. Driver guidance and result extraction Meaningful in-vehicle NVH results came from tests where conditions (i.e. speed and torque loading) have been held consistent. PLATO’s real-time test conditions view provides test drivers with the ideal tool to make this happen. Then, with the aid of run-averaging to reduce the effects of inevitable randomness on the results, salient order tracks are effortlessly extracted in real-time during controlled speed sweep (acceleration-deceleration) testing. Protrusion and audibility Human perception of powertrain NVH stems from audibility; for example, can the powertrain be heard above background noise arising from tyres, wind and other sounds? Customer complaint In this example, order 21.25 (corresponding to transaxle final drive fundamental gear mesh order) stands at least 6dB above adjacent background noise. This is audible and a customer complaint. The 'big picture' This order track protrusion summary (using the same data as above) shows that final drive gear mesh is well into the audible zone around 2900 RPM. It also shows that engine firing orders are the most audible components at lower RPM values. Clear, precise results In-vehicle NVH results are reported using PLATO’s intuitive test report and stored within PLATO’s results database (SQL) so they can be passed on to PLATO-SERVER, when the laptop/tablet PC networks are connected back at base. Sign up to our newsletters Email TRACK TESTING SPMM AVDS NVH Subscribe QUICK LINKS Products Kinematics & Compliance Driving Robots ADAS Targets NVH Test Systems Driving Simulators Wireless Telemetry Application Academic Research ADAS Testing Autonomous Vehicle Testing Sine-dwell R&D NVH Testing About us Contact us Locations News Terms and Conditions Modern Slavery Statement Copyright and Privacy Policy NEWS Automotive Testing Expo in Michigan, USA The Automotive Testing Expo is almost underway again, this time in Novi, Michigan, USA. ... LaunchPad 80 VRU platform released On Thursday AB Dynamics launched the LaunchPad 80, our latest vulnerable road user... GET IN TOUCH AB Dynamics Middleton Drive Bradford on Avon Wiltshire BA15 1GB England Email: info@abdynamics.com Tel: +44 (0)1225 860 200 FOLLOW US © 2021 Anthony Best Dynamics Limited.