DEVELOPMENT OF THE MELBOURNE PEAK CYCLE

This is a report on the development of a representative Melbourne drive cycle. This cycle is intended to provide a basis for a more realistic assessment, of the emissions and fuel consumption for Melbourne driving, than the United States developed urban drive cycle, currently used in ADR27A for motor vehicle compliance testing. The cycle was based on a study of Melbourne morning peak driving patterns. Ten routes were surveyed using an instrumented vehicle to record traffic and fuel consumption data. The route driving pattern data were analysed and weighted in accordance with vehicle kilometres travelled within a radius of eight kilometres from central Melbourne to produce a single joint velocity and acceleration probability density function. The Melbourne peak cycle was produced to match this joint velocity and acceleration probability. It has a duration of 16.3 minutes, an average speed of 30.4 km/h, and maximum speed of 110.4 km/h and minimum and maximum accelerations of -3.83 m/s/s (-13.3 km/hs) and 3.46 m/s/s (12.5 km/hs) respectively. The unique methodology used in the analysis of traffic data and the formulation of the drive cycle, should have application to a wide range of future driving pattern problems, such as cold start cycles and on gradient driving cycles (a). The paper was presented as Paper 18--Session 6--Driving Patterns (SAE 82148). The number of the covering abstract of the conference is TRIS no.367871. (TRRL)