hydraulic hybrid vehicles
TRANSCRIPT
Recent Trends - Hydraulic Hybrid Vehicles
Ankush Menat
What is Hydraulic Hybrid system?
HHVs, like all hybrid vehicles, use two sources of power to drive the wheels. In a hydraulic hybrid, pressurized fluid is used as secondary source of power.
Why HHVs?
▣ Increasing fuel demand▣ Completely green solutions are not yet
practical
Types of HHVs
1. Parallel system 2. Series system
Types of HHVs
1. Parallel system 2. Series system
How accumulators work?
Working - Accelerating
Working - Cruising
Working - Braking
Up to 75% energy recoveryCompare that to mere 25% from Electro-Hybrid system
30%-50%Decrease in greenhouse emissions
50%-100%Increase in overall fuel efficiency
Why HHVs are so efficient?
▣ Regenerative Braking▣ Shutting Engine Off When Not Needed▣ Optimum Engine Control
efficient
Disadvantages
▣ High cost of accumulators.▣ Chances of explosion due to high
pressure.
Credits and References
▣ Google Office tools▣ WPS Office and LibreOffice▣ GIMP, ffmpeg and imagemagick▣ Presentation template by SlidesCarnival
1. Hydraulic Hybrid Research. (2012, October 18). Retrieved January 18, 2015, from http://www.epa.gov/otaq/technology/research/research-hhvs.htm