ISO 8715:2001 PDF

Overview

ISO 8715:2001 - Electric road vehicles - Road operating characteristics defines standardized procedures to measure the road performance of purely electric passenger cars and light commercial vehicles (maximum authorized total mass 3 500 kg). The standard specifies how to evaluate road operating characteristics such as maximum speed, maximum 30‑minute speed, acceleration, hill climbing ability and hill starting ability, and includes provisions for chassis dynamometer calibration (Annex A).

Key topics

• Scope and vehicle class: Applies to electrically propelled vehicles in categories M1 and N1 up to 3 500 kg.
• Test sequence: Organized to be completed in two days - preconditioning and maximum 30‑minute speed (day 1), then maximum speed, partial battery discharge, acceleration runs, uphill speed, and hill start tests (day 2).
• Battery preconditioning and charging: Specifies overnight charging procedure, end‑of‑charge criteria (standard 12 h or formula based on battery kWh and mains power), and required state‑of‑charge windows for specific tests.
• Parameters, units and accuracy: Defines measurement parameters and tolerances (examples: time resolution 0.1 s; length accuracy 1 m; speed resolution/accuracy such as 0.2 km/h or ±1%/0.1 km/h; mass 1 kg or ±0.5%).
• Test and environmental conditions: Track and atmospheric limits (outdoor ambient 5–32 °C; indoor 20–30 °C; air pressure 91–104 kPa; average wind