Test methods for autonomy of electric vehicles
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Summary
This paper addresses the methodologies for testing the autonomy (range) of electric vehicles (EVs), a critical factor for market competitiveness and infrastructure planning. The authors highlight that while EV adoption is growing in the US and EU, Poland lags behind, partly due to insufficient charging infrastructure and consumer concerns regarding range anxiety. The study aims to describe various testing procedures—both laboratory-based and road-based—to determine how different methods affect the measured range of passenger cars, vans, trucks, and buses. The research reviews four primary testing methods. First, the New European Driving Cycle (NEDC) is described as a laboratory test performed on a chassis dynamometer, simulating urban and extra-urban driving conditions. The authors note that NEDC results often significantly overestimate real-world range. Second, the Worldwide Harmonized Light Vehicles Test Procedure (WLTP) is introduced as a more rigorous standard adopted from 2017 onward, featuring higher speeds, greater distances, and more dynamic acceleration phases than NEDC. Third, the Real Driving Emissions (RDE) test is discussed as a road-based procedure using portable emission measurement systems to monitor vehicles under real traffic conditions, including varying temperatures and topographies. Fourth, the Standardized On-Road Test (SORT) is presented as a method specifically for electric buses, involving a single route with defined parameters to assess energy consumption and range. The paper presents specific findings from these methods. Table 1 compares NEDC and real-world ranges for various EV models, showing significant discrepancies; for instance, the Tesla Model 3 achieved 744 km in NEDC tests but only 496 km in real-world conditions. The authors also detail road tests conducted on the Ursus EVLi prototype bus. Using GPS tracking and battery management systems, the bus was tested in two variants: one with a payload of 3.5 tons and another with no payload. Results indicated that the loaded bus achieved a range of approximately 150–200 km, while the empty bus achieved up to 252.6 km. The study concludes that laboratory tests like NEDC and WLTP provide standardized but often optimistic data, whereas road tests like RDE and SORT offer more realistic assessments of vehicle autonomy, which are essential for accurate infrastructure planning and consumer trust.
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| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | Crossref | — | — | 1 | 2026-06-18 |
| archive | success | canonical_url | — | — | 1 | 2026-06-25 |
| extract | success | cached | — | — | 2 | 2026-06-26 |
| clean | success | clean | — | — | 1 | 2026-06-19 |
| chunk | success | chunk | — | — | 1 | 2026-06-19 |
| embed | success | embed | Qwen/Qwen3-Embedding-8B | — | 1 | 2026-06-19 |
| promote | success | — | — | — | 1 | 2026-06-18 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 1 | 2026-06-26 |
| tag | success | vector_similarity | — | — | 6 | 2026-06-19 |
| verify | success | — | — | — | 1 | 2026-06-26 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-26; verification: verified.
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- Applied Guidance: standards test procedures