Diesel Particulate Filter Testing on Vehicles with GPS Logging - Sponsored Whitepaper

Delphin TopMessage Data Acquisition and Control System

CAS DataLoggers recently provided the data acquisition solution for Twin-Tec, a German developer and manufacturer of environmentally friendly products and technologies for reducing exhaust emissions, including a wide range of diesel particulate filters and catalytic converters for automotive applications. TwinTec was heavily involved in producing products for retrofitting and upgrading already approved vehicles as well as corresponding replacement products. In Germany, the government encouraged all owners through financial incentives to retrofit their filters since many old vehicles had no diesel particulate filtration. Many German automobile owners became interested in adding a particulate filter to their exhaust system in order to protect the environment and benefit from the reduced vehicle emission taxes. Twin-Tec was therefore developing many different retrofit filters for many different brands. Each filter required testing on the road under typical driving conditions to determine filter efficiency—however, virtually every new filter also required a new design due to the wide variety of exhaust systems and their varying temperature and pressure operating levels. During test drives, the filter temperature, pressure, engine speed, idle times, vehicle position and speed all needed to be measured accurately and reliably to ensure that the filter met all required standards. In order to record all the test data, Twin-Tec needed a sophisticated data acquisition device capable of extreme accuracy and fast signal processing and that could capture the wide range of data required in the tests.