ISO 23280:2022
Electrically propelled mopeds and motorcycles — Test method for evaluation of energy performance using motor dynamometer
This document specifies a test method to evaluate energy performance of electric motorcycles and mopeds by measuring performance of a test motor system (3.4) to be installed to an electric moped or motorcycle under consideration.
The test is carried out on a motor dynamometer test bench where the traction motor system is connected to a load motor system (3.3) that simulates resistance torque arising from running resistance of vehicle and drive train friction loss and inertia effect.
This method provides estimates of specific energy consumption and range of an electric moped or motorcycle to which the traction motor system is intended to be applied.
This document is only applicable to two-wheeled motorcycles and mopeds.
NOTE This test method is applicable to motorcycle or moped regardless of types of power transmission devices, such as chains, belts, gears, ratio controllable CVTs, shaft drives, direct drives, etc., once gear ratios (ratio of input to output speed) and transmission efficiencies (ratio of input to output torque) are provided.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Determination of resistance torque to traction motor system
5.1 Running resistance of vehicle
5.2 Resistance torque for central drive system
5.3 Resistance torque for in-wheel drive system
6 Test conditions
6.1 Motor dynamometer
6.2 Driving mode
6.3 Operation for the motor dynamometer
6.3.1 Resistance torque to traction motor
6.3.2 Load motor system
6.3.3 Torque and speed sensors
6.4 DC Power supply
6.5 Power meter
6.6 Measurement of voltage and current
6.7 Measurement of temperature
7 Performance calculation
7.1 Consumed energy
7.2 Travelled distance
7.3 Motor system efficiency
7.4 Reference energy consumption
8 Presentation of results
Annex A (informative) Classification of equivalent inertia mass and the running resistance for motorcycles
Annex B (informative) Classification of equivalent inertia mass and the running resistance for mopeds
Annex C (informative) Derivation of traction motor torque for central drive system
Annex D (informative) Derivation of traction motor torque for in-wheel drive system
Annex E (normative) Test report – test motor and test conditions
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Determination of resistance torque to traction motor system
5.1 Running resistance of vehicle
5.2 Resistance torque for central drive system
5.3 Resistance torque for in-wheel drive system
6 Test conditions
6.1 Motor dynamometer
6.2 Driving mode
6.3 Operation for the motor dynamometer
6.3.1 Resistance torque to traction motor
6.3.2 Load motor system
6.3.3 Torque and speed sensors
6.4 DC Power supply
6.5 Power meter
6.6 Measurement of voltage and current
6.7 Measurement of temperature
7 Performance calculation
7.1 Consumed energy
7.2 Travelled distance
7.3 Motor system efficiency
7.4 Reference energy consumption
8 Presentation of results
Annex A (informative) Classification of equivalent inertia mass and the running resistance for motorcycles
Annex B (informative) Classification of equivalent inertia mass and the running resistance for mopeds
Annex C (informative) Derivation of traction motor torque for central drive system
Annex D (informative) Derivation of traction motor torque for in-wheel drive system
Annex E (normative) Test report – test motor and test conditions
Bibliography