Holistic Hybrid RDE Calibration Methodology for EU7

To calibrate and validate lowest emissions to meet EU6d-FINAL limits, OEMs have set up their own procedures and test matrices. The consequence is often a resource, time and cost intensive process leading to a longer project run time. With the ongoing discussion about EU7 and stricter emission limits, additional restricted emission species, longer catalyst endurance and shorter city drives combined with new hardware solutions like the e-catalysts and subsequently an ever-rising complexity for hybrids, the OEMs will face a severe tightening of the existing efforts.This paper presents a holistic Hybrid RDE calibration methodology to achieve EU7 tackling the upcoming time and cost challenges. An innovative way to create statistical relevant real driving emission cycles from a big data cloud in combination with a Hardware-in-the-Loop (HiL) test bench in an early project phase to reduce effort and increase emission security at the same time is shown. This is combined with a purpose designed and vehicle endurance run derived catalyst aging duration presenting a completely new approach and exceeding the aging severance of existing catalyst aging procedure by far including a pre ashing method on a burner rig.