RDE PN Emission Challenges for a China 6 PHEV

• DOI: 10.4271/2024-01-2386
• Publication Date: 2024-04-09T02:15:49Z
• Authors: Yi Liu; Chunbo Li; Thorsten Boger; Xiangyu Feng; Weiwei Li; Xiaolang Chen

<div class="section abstract"><div class="htmlview paragraph">With more stringent CO<sub>2</sub> emission regulation in the world, Plug-in Hybrid Electric Vehicle (PHEV, also known as off-vehicle charging hybrid electric vehicle, OVC-HEV) plays a important role current modern market, such China. At same time, Real Driving Emission (RDE) was introduced both Euro 6d and China 6b regulation, which covers factors real driving practice including altitude, environment temperature, fuel quality, behaviors, so on, could potentially impact pollutant emissions. Besides above mentioned, for PHEV, state of charge (SOC) battery is considered one factor, engine load Thus, this paper discusses some testing results PHEV (1.5L MPI engine) from Chinese OEM, tested laboratory with different initial SOC points (charge sustaining - CS mode depleting CD mode) temperature (23<sup>0</sup>C, 0<sup>0</sup>C & -10<sup>0</sup>C) well to check their tail pipe particle number (PN) emission. In addition, RDE simulation cycle urban only run at low (0<sup>0</sup>C) on chassis dynamometer result 23nm (PN<sub>23</sub>) discussed according 6e requirement. Particle 10nm (PN<sub>10</sub>) measured per new requirement 7 proposal potential regulation. end, relevant possible suggestions meet future are discussed.</div></div>