How do you ensure compliance with Real Driving Emissions (RDE) requirements?

RDE compliance requires emissions control effectiveness across real-world conditions outside controlled lab tests. Strategies include: Robust aftertreatment sizing for varying exhaust temperatures, extended catalyst light-off strategies including electrically heated catalysts, aggressive SCR dosing strategies with ammonia slip management, thermal management to maintain catalyst temperatures, aggressive EGR at high altitudes and temperatures, software recognizing and adapting to RDE-relevant conditions, and validation through extensive on-road testing with PEMS equipment. The challenge is maintaining compliance across random routes including altitude changes, traffic, and temperature extremes while meeting conformity factors.