// Power­train Systems in Vehicles

Emis­si­on Opti­mi­sa­ti­on on the Chas­sis Dyno or the Road

Basic Data Input — On-Board Diagno­stics (OBD) — Emissions

Most of the data input for emis­si­on-rele­vant func­tions and on-board diagno­stics happens on our state-of-the-art chas­sis dyna­mo­me­ter test benches. In addi­ti­on to veri­fy­ing compli­ance with legal regu­la­ti­ons for the respec­ti­ve count­ries, statu­to­ry passen­ger car type test­ing in Euro­pe requi­res emis­si­on measu­re­ments under real driving condi­ti­ons. APL offers a truly holi­stic approach for this kind of test­ing: from indi­vi­du­al route selec­tion, through adapt­a­ti­on and compa­ri­son of measu­re­ment tech­no­lo­gies, to data evalua­ti­on compli­ant with legal requi­re­ments. PEMS (Porta­ble Emis­si­ons Measu­re­ment System) measu­re­ment tech­no­lo­gies are also utili­sed during the deve­lo­p­ment phase to ensu­re relia­ble data acquisition.

Due to the incre­asing degree of elec­tri­fi­ca­ti­on of vehic­le drive trains and the digi­ti­sa­ti­on of vehic­les, chas­sis dyno test-bench-ready proto­ty­pes are first available at a rela­tively late stage. In order to be able to carry out emis­si­on and consump­ti­on opti­mi­sa­ti­ons as early as possi­ble in the deve­lo­p­ment process, the APL drive train test­ing faci­li­ty offers high­ly sophisti­ca­ted test benches with corre­spon­ding measu­re­ment tech­no­lo­gy and tech­ni­cal equip­ment. In this envi­ron­ment, virtu­al compon­ents can be succes­si­ve­ly repla­ced by new hard­ware, thus enab­ling the enti­re, complex system to be deve­lo­ped to full produc­tion readiness.

Certi­fi­ca­ti­on and Confor­mi­ty of Production

Post-CoP (Confor­mi­ty of Produc­tion) test­ing serves as both quali­ty assu­rance and to deter­mi­ne produc­tion tole­ran­ces in assem­bly proces­ses. Confor­mi­ty of produc­tion must be demons­tra­ted for all confi­gu­ra­ti­ons and is inten­ded to ensu­re that every produ­ced vehic­le conforms to the type approval.

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