What is NEDC Combined Fuel Consumption?
2 Answers
NEDC combined fuel consumption serves as China's reference standard for testing the driving range of electric vehicles. The NEDC test cycle consists of two parts: ECE (Urban Driving Cycle) and EUDC (Extra-Urban Driving Cycle). Purpose of ECE: It simulates traditional urban road conditions, composed of four ECE15 cycles. Each ECE15 cycle includes 15 driving conditions such as acceleration, deceleration, constant speed, and idling. The ECE cycle lasts for 780 seconds, covers a total distance of 4.052 km, with an average speed of 18.7 km/h, characterized by low speed, low load, and low exhaust temperature. Purpose of EUDC: EUDC simulates suburban road conditions, lasting for 400 seconds, covering a distance of 6.955 km, with an average speed of 62.6 km/h. The maximum speed in this segment reaches 120 km/h.
NEDC combined fuel consumption is a standardized testing method for vehicle fuel efficiency, simulating European driving cycles that measure average consumption under both urban and highway conditions. Conducted primarily in laboratory settings, it evaluates a car's fuel efficiency using specific speed and time combinations, allowing consumers to compare fuel consumption across different models. After purchasing my car, I realized this metric is merely a reference—my actual fuel consumption consistently exceeds it because factors like acceleration, braking, and traffic congestion are overlooked. Nowadays, the WLTP standard has largely replaced NEDC as it better reflects real-world conditions, so don’t rely too heavily on NEDC figures. I recommend checking owner reviews to understand real-world fuel consumption before buying a car to avoid regrets.
