Browse Learn C0833

Introduction to Hydraulic Hybrid Systems for Road Vehicles C0833

Considerable attention has been given to the design and efficiencies of electric hybrid propulsion systems and energy storage technologies. Although they draw much less attention, hydraulic hybrid propulsion and regenerative braking systems for road vehicles are a cost effective alternative to electric systems and have relevance to important sectors of the passenger and commercial vehicle markets.

In this two-day seminar, hydraulic hybrid vehicle systems and their potential will be examined using model based evaluations. This will include an evaluation and comparison of hybrid configurations as well as the introduction of components used in these hydraulic hybrid systems. Also provided will be details on how hydraulic systems are designed and integrated into vehicles, including interactions with braking systems and various other vehicle systems. Recent developments in hydraulic machines and an update on the component technology needed to implement these solutions will also be presented.

Learning Objectives
By attending this seminar, you will be able to:
  • Identify the fundamentals of parallel and series hydraulic hybrid vehicle transmission systems and components
  • Evaluate the applicability of such systems to particular vehicle applications
  • Identify how hydraulic hybrid system components can be integrated into the vehicle
  • Recognize the interactions with other vehicle systems (e.g. engine, transmission, ABS, foundation brakes) and integration of controls

Who Should Attend
This course will benefit individuals new to hydraulic hybrid systems as well as engineers and designers involved in all areas related to the design and development of vehicle powertrain systems. Also benefiting will be individuals interested in the interaction of this hybrid system with braking systems and engine controls.

An undergraduate degree or strong technical background is highly recommended. A basic familiarity with vehicle powertrain and braking systems is required.
  • Introduction and Overview
    • Objectives
    • Course outline and scope
  • Hybrid Vehicle Systems - Outline and Comparisons
    • Definitions
    • Energy storage
    • Basic electric and hydraulic configurations: Parallel and Series -- Efficiency evaluations; Weight comparison; Cost outline
  • Hydraulic Components for Vehicle Hybrid Systems
    • Accumulators -- Types; Size and weight; Efficiency and response; Installation
    • Pumps and Motors: Requirements -- Efficiency and response
    • Types: Descriptions and Potential Applications (Axial Piston; Swash Plate; Bent-Axis; Radial Piston; Other
    • Other components - valves pipes, filters, coolers, etc.
    • Controls -- System; Vehicle
  • System Design
    • Simulation strategy -- Drive cycles; Launch criteria; Maximum speed; Towing/grades
    • Stop/Start functionality -- Accessory drives
  • Control Strategies
    • Regenerative braking
    • Parallel hybrid hydraulic systems
    • Series hybrid hydraulic systems
    • Engine operation management -- Simplified engine calibration for emissions and fuel economy; Advanced engines enabled by series hybrids
    • Safe Operation
  • Application Examples
    • Car and taxi
    • Light truck (SUV, pickup, work truck)
    • Light delivery truck and shuttle bus
    • Refuse and transit bus
    • Off-highway
  • Hydraulic Hybrid Potential and Developments
  • Course Assessment and Summary
Simon J. Baseley

simon baseley Simon J. Baseley was the Director of Engineering Strategy and Program Management within the Intelligent Hydraulic Drive Group at Bosch Rexroth Corporation until he retired in July 2011. He currently works part time at the University of Michigan as a Visiting Research Investigator in the Automotive Lab. Mr. Baseley was also a Director of the Intelligent Hydraulic Drive Products for the Dana Corporation, where he worked to develop and promote applications for hydraulic drive systems for vehicles. Prior to that, he was the Director of Advanced Engineering for Hobourn Automotive Ltd. where he formulated and executed new hydraulic pump applications and directed the applied research initiatives in fluid flow and noise suppression. Mr. Baseley also has extensive experience within the aerospace industry, previously serving as Chief Design Engineer for Rolls-Royce Ltd. An active member of SAE, Mr. Baseley has written several papers on noise related research and hydraulic hybrid systems. He holds eight patents related to hydraulic pumps and hybrid systems. Mr. Baseley, formally educated in the U.K., received a B.S. in Mechanical Engineering from the University of Nottingham and a M.S. in Aircraft Propulsion from Cranfield University.

Hotel & Travel Information

Fees: $1415.00
SAE Members: $1132.00 - $1274.00

1.3 CEUs
You must complete all course contact hours and successfully pass the learning assessment to obtain CEUs.

"I have been to eight SAE courses over the past 30 years or so, all were excellent, but this was the best & most valuable for me."
George H. Morgan
George H. Morgan, P.E., Patent Agent

"This is an outstanding course summarizing an emerging technology with a view to the future."
Ron Huston
University of Cincinnati

For additional information, contact SAE Customer Service 1-877-606-7323 (724-776-4970 outside the U.S. and Canada) or at

Duration: 2 Days
Upcoming open enrollment dates being scheduled. Please check back.