hybrid vehicle power trains using hydrogen and fuel cells
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8/14/2019 Hybrid Vehicle Power Trains Using Hydrogen and Fuel Cells
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Hybrid vehicle power trains using hydrogen and fuel cells
Martyn ChymeraResearch Engineer
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Hybrid Vehicles
Hybrid Vehicles combine two
(or more) energy sources.
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Advantages
Using an energy storage deviceallows regenerative braking to be
employed
Using two energy sources allows
more efficient operating points tobe used during driving.
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On-board energy options
ThermalEngine
MicroTurbine
Battery
TractiondriveAuxiliaryPower
Cache
energystorage
Controlelectronics
Fuel cell
Options
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Energy flows
Regenerativebraking
On-boardenergystorage
Traction drivesystem
Fuel cell /genset
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Conventional Drive-line
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Fuel Cell Drive-line
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Series Hybrid
TransmissionMotorBattery
Generator
Thermal
Engine
PowerElectronics
PowerElectronics
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Fuel Cell Series Hybrid
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The Engine or Fuel Cell is usedas a continuous energy source.Peak power is provided by theenergy cache.
Ideal for vehicles which start andstop frequently.
Series Drive train
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Assisted parallel hybrid
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Fuel Cell Assisted parallel hybrid
TransmissionMotor/
Generator
PowerElectronics
Battery
Fuel Cell PowerElectronics
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Allows internal combustion engineto be switched on and off to savefuel.Simplest hybrid drive train
Regenerative braking can bestored
Assisted Parallel Drive train
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Full parallel hybrid
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Fuel cell full parallel hybrid
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Allows each branch to beoptimally sized.Packaging advantage
Requires a complex control.Ideal for trucks
Full Parallel Drive train
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Fuel cell full parallel hybrid
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Coupled hybrid
Thermalengine Transmission
Driven wheels
Electronic
control
Battery
Motor /generatorPowersplit
Motor /
generator
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Combined hybrid
Thermalengine
Electroniccontrol
Transmission
Battery
Driven wheels
Motor /generator
Motor /generator
Clutch
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Four wheel drive parallel hybrid
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Fuel Cell Four wheel drive parallel hybrid
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SimplicityPackaging advantages
System Redundancy
Four wheel Parallel Drive train
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Fuel Cell 4 wheel drive
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Four wheel drive hubmotor hybrid
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Fuel Cell Four wheel drive hubmotor hybrid
Motor/ Generator
Motor/ Generator
Motor/ Generator
Motor/ Generator
PowerElectronics
Fuel Cell
Battery
PowerElectronics
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• Advanced 4 wheel driveapplications – off road/militaryPackaging, the four motors are
placed in the hubs.
Four wheel hubmotor Drive train
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Plug In Hybrid Architecture
GeneratorThermalengine
Sup-cap
Battery
Uni-directional
DC/DCConverter
Bi-directional
DC/DCConverter
TransmissionElectroniccontrol
Optional journey data input
Electronic
control
Plug -in mains
utility supply
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HILTech’s Plug In Hybrid for cars
Aux. LoadDC Linkfor aux.Power
Main 360 Voltstorage
Battery andSuper-cap
system
TractionLoad
CANBus control and monitoring
Protection andcurrent monitoring
ACMainsSupply
Protectionand current
monitoring
Fused input
Fused input
BatteryCharger
AuxiliaryDC/DC
Main PowerConverter
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On-going research activities Conducting polymer high voltage super-cap
Utility power quality and optimised energyflows under light-rail random loads
Novel DC/DC converter technology
Engine-generator improvement for serieshybrid architectures
Super-cap non-evasive equalisationmonitoring, control and intelligent energymanagement for high voltage systems
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Research partners
Commercial: Universities:
Ford Think
Hawker Batteries
Johnson Matthey
Lexcel Technology
Qinetiq Schindler
Wrights Bus
Birmingham
Brussels VUB TW-ETEC
Cambridge
Manchester
Newcastle Reading
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Conclusions The presentation has covered a varietyof hybrid drive trains:
Series, Assisted Parallel, Full Parallel, Fourwheel drive parallel hybrid and the four wheelhubmotor configuration
These drive trains can be used for a variety ofpossible applications:
Stop start (bus, taxi, milkcart), Continuous
(motorway) operation (trucks) and advancedapplications (military 4 wheel drive)
Also include the HILTech plug in hybrid
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Finally We are a small company with considerable expertise;
HILTech provides commercial services understrict confidentiality for the sole benefit of theclient.
We provide our services as, when and whererequired from concept to turnkey.
HILTech can and does collaborate with third
parties and business share.
We see ourselves as problem solvers.
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www.hiltechdevelopments.com
www.advancedpassengervehicles.com
Thank you