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Optimization in Hybrid Electric Vehicle Design andLogistics
Christopher Bacher
bacher@ac.tuwien.ac.atInstitute of Computer Graphics and AlgorithmsJune 29th–July 1st , 2015
Christopher Bacher HEV Design & Logistics Retreat 2015 1 / 8
Hybrid Electric Vehicles
Different operation modes:
Combustion drive
Pure electric drive
Load Point Shifting
Power-split
Recuperation
driving axle
planetary gear
electric m. 2
electric m. 1
batterycomb. engine
Figure: HEV schematic
Christopher Bacher HEV Design & Logistics Retreat 2015 2 / 8
The big picture
Christopher Bacher HEV Design & Logistics Retreat 2015 3 / 8
Hybrid Electric Vehicle Design Optimization
Configure a Hybrid Electric Vehicle (HEV) to reduce fuelconsumption
High-detail computer simulation model
Simulation of a specific driving cycle
Optimize structural & operational parameters of a HEV
Problems
Simulation requires a lot of time
Parameter setting may overfit the driving cycle
Simulation presents as a black-box
Christopher Bacher HEV Design & Logistics Retreat 2015 4 / 8
Hybrid Electric Vehicle Design Optimization
Configure a Hybrid Electric Vehicle (HEV) to reduce fuelconsumption
High-detail computer simulation model
Simulation of a specific driving cycle
Optimize structural & operational parameters of a HEV
Problems
Simulation requires a lot of time
Parameter setting may overfit the driving cycle
Simulation presents as a black-box
Christopher Bacher HEV Design & Logistics Retreat 2015 4 / 8
Green Hybrid Electric Vehicle Routing Problem
Given
A central depot
A set of customers with demands and time windows
A fleet of Hybrid Electric Vehicles
Questions
What are the optimal routes?
What is the optimal operation strategy?
What level of model detail is neededs.t. the routes do not change?
Christopher Bacher HEV Design & Logistics Retreat 2015 5 / 8
Green Hybrid Electric Vehicle Routing Problem
Given
A central depot
A set of customers with demands and time windows
A fleet of Hybrid Electric Vehicles
Questions
What are the optimal routes?
What is the optimal operation strategy?
What level of model detail is neededs.t. the routes do not change?
Christopher Bacher HEV Design & Logistics Retreat 2015 5 / 8
Green Hybrid Electric Vehicle Routing Problem
Given
A central depot
A set of customers with demands and time windows
A fleet of Hybrid Electric Vehicles
Questions
What are the optimal routes?
What is the optimal operation strategy?
What level of model detail is neededs.t. the routes do not change?
Christopher Bacher HEV Design & Logistics Retreat 2015 5 / 8
Green Hybrid Electric Vehicle Routing Problem
Given
A central depot
A set of customers with demands and time windows
A fleet of Hybrid Electric Vehicles
Questions
What are the optimal routes?
What is the optimal operation strategy?
What level of model detail is neededs.t. the routes do not change?
Christopher Bacher HEV Design & Logistics Retreat 2015 5 / 8
Green Hybrid Electric Vehicle Routing Problem
Given
A central depot
A set of customers with demands and time windows
A fleet of Hybrid Electric Vehicles
Questions
What are the optimal routes?
What is the optimal operation strategy?
What level of model detail is neededs.t. the routes do not change?
Christopher Bacher HEV Design & Logistics Retreat 2015 5 / 8
Efficiency of Electric Machines
Figure: ICE efficiency map (Juraj, 2012, posterus.sk/?p=12975)
Christopher Bacher HEV Design & Logistics Retreat 2015 6 / 8
Efficiency of Combustion Engines
Figure: ICE efficiency map (Juraj, 2012, posterus.sk/?p=12975)
Christopher Bacher HEV Design & Logistics Retreat 2015 7 / 8
Thank you for your attention!
Christopher Bacher HEV Design & Logistics Retreat 2015 8 / 8
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