Optimisation of a hybrid diesel-hydraulic automotive powertrain using ADVISOR, Matlab and Simulink

Abstract

The Hydraulic Hybrid Vehicle obtains energy for propulsion from two different sources, the Internal Combustion Engine (ICE) and a hydraulic pump/motor. Braking torque is supplied by operating the unit as a pump, and thus storing the otherwise lost kinetic energy of the slowing vehicle. During acceleration the unit is operated as a motor, using the stored energy to assist propulsion. A model of the systems was developed in the Matlab/Simulink environment then implemented into the automotive simulator ADVISOR. This paper outlines the procedures used for optimisation studies within ADVISOR, to find the ideal combination of system parameters, e.g., pump/motor displacement, accumulator size and pressures, that yield the best results for fuel consumption for a standard urban drive cycle.

Keywords:

• Hydraulic
• Hybrid
• Vehicle
• Simulation
• Optimization
• ADVISOR

Additional information

Notes on contributors

P L Matheson

Paul Matheson completed his Batchelor of Science degree in 1999 with an Applied Mathematics and Physics double major. After another two years of undergraduate study he completed his Batchelor of Engineering degree majoring in Mechanical Engineering. After working as a Project Engineer at Amcor Fibre Packaging for 12 months, he returned to Monash University to pursue postgraduate study, focussed on the Permo-Drive hydraulic hybrid technology. In 2002 he received a AU$27,000 industry-based scholarship for postgraduate study, and in 2003 received the Australian Road Transport Suppliers Association (ARTSA) student prize of AU$8,000.

Paul completed his Masters in February of 2004, and is currently working as a systems engineer for heavy diesel fuel injection systems at Delphi Diesel Systems – HDB in the UK.

J S Stecki

Jacek Stecki, Principal Consultant, Lubricated Systems Reliability, Maintenance Technology Institute, Monash University has over 30 years of teaching, research and consulting experience in condition monitoring and safety critical systems in mineral processing, marine/aviation and offshore oil&gas systems. fluid power, condition monitoring and simulation.

Stecki is a Chairman of the Scientific Board of Fluid Power Net International. Research experience in Poland, Australia, USA and Italy, Norway, UK and Denmark. Research projects in fields of fluid power, machine condition monitoring and modelling and simulation. Consulting with BHP Petroleum, State Electricity Commission, Alcoa, Babcock Moxley, BHP Steel, Comalco, Bougainvillea Copper, Hammersley Iron, ANM and other major industrial and mining companies in areas of safety, reliability and machine condition monitoring. Acted as a consultant in Australia, USA, Norway, Switzerland and Brazil.

Stecki published over 150 technical papers and articles in national and international journals and conference proceedings, on hydraulic control systems, machine condition monitoring and simulation of mechanical and fluid power systems. He presented over 100 seminars and guest lectures on fluid power and machine condition monitoring at Universities and research organisations world-wide. Author/Editor of four books. Over 60 research and consulting reports.