China Euro Vehicle Technology AB - Developing cars for a different tomorrow Börje Grandin - AVL
←
→
Page content transcription
If your browser does not render page correctly, please read the page content below
China Euro Vehicle Technology AB Developing cars for a different tomorrow Börje Grandin Vice President Electric Propulsion Systems
This is CEVT
Our purpose
Developing cars for a different tomorrow
Corporate Presentation
CEVT is an innovation center for the Geely Group > Started 2013 > A Swedish registered company, owned by Geely(ZGH), located at Lindholmen Science Park in Gothenburg. > Currently keeping some 2000 people busy. > Aprx 3B SEK annual investment. > Offices in Gothenburg and Trollhattan About CEVT
Zhejiang Geely Holding Group – CEVT’s role
Owned by Geely Holding Group
Operates under GAG
Delivers technology to GA, LYNK & CO and Volvo Cars
CEVT
First car launched for LYNK & CO The 01
Electrification of CMA (Compact Modular Architecture)
Electrification Strategy
> PHEV first – HEV second
> Single E-motor hybrid solution
> All HV systems in the front
> Short HV lines and easier installation
> HV Battery placed centrally
> Crash safety
> No impact on tank or luggage volume
> E-motor on top of a standard gearbox
> High commonality with standard gearbox
> Same powertrain installation as non-hybrid
Electrification of
Transmission:
> Based on high-volume 7DCT transmission
> Only few added components
> Motor attached to even input shaft
> E-drive and regen on gears 2, 4 and 6
> Hybrid drive on all gears
390 NmThe Energy Challenge
Challenge increases
Customers are buying larger and more powerful cars
US market data Global weight data China market data
Data source US EPA Data source Lee Schipper, University of California Berkeley
Data source ICCTTaking weight out of the equation?
Kinetic energy recovery reduces the importance of weight,
however size matters!
Electrification enables regeneration of
acceleration power. If we would have
100% efficiency weight would not effect
energy consumption.
Power = m*a*v
Larger vehicles require higher power
higher energy consumption
Power needed on a flat road
25,0
SUV Sedan
15,0
Power [kW]
5,0
-5,0 0 20 40 60 80 100
Speed km/hThe Cost Challenge
Electrification is needed, how do we make it
affordable?
08/02/2018Electrification is needed, size of the battery?
Daily driving distance to determine the installed
capacity?
50- 100km range covers a large
part of customers daily driving.
Customer surveys indicate that
80km range would satsify most
customers… today
Chinese study of driving behaviour 2015
08/02/2018Range needed for a BEV?
The size of the battery for long distance travelling
should cover the range between coffee breaks
With fast charging the car
can be charged while the
driver takes a natural
break.
Expectation is that three
hours of driving should be
covered. ~400km
08/02/2018What is the cost of the future PT?
Cost challenge is mainly connected to battery size
Powertrain relative cost estimation 2025
2,2
Different customers will 2
choose different powertrain
1,8
solutions.
Relative Cost
1,6
PHEV competetive for long 1,4
range
1,2
1
Assumptions: Same power levels on all PT. 0,8
PHEV assumed 50% power from e-motor. 0,6
100 200 300 400 500
Range [km]
BEV pwt 50 km PHEV pwt 100 km PHEV pwt
08/02/2018How do we reach an affordable cost?
Electrification technology is not mature. We need to cut
cost by optimising and finding economy of scale
Example High voltage batteries: numerous
solutions of cells, modules and battery packs.
The automotive industry and in the end, the
customer will benefit from standards
High voltage Cells
08/02/2018How do we reach an affordable cost?
Further integration is needed in order to reduce cost
• Combining functions into one unit is a must.
• Integrated Inverter/e-motor
• Combined Charger & DCDC
• 12V battery combined with High voltage battery
• Inverter & Charger
• etc… many combinations possible
• As volumes increase unique solutions does make sense. Modularity might
not be the sole answer to cutting cost
08/02/2018How do we reach an affordable cost?
PHEV & HEV allow us to reduce cost by optimising the ICE
Expensive technology
aiming at low load
efficiency can be
removed
Low speed torque is
also less interesting
Cost reductions
possible
08/02/2018What is needed in the future?
Significant research and development is needed!
• Increased power & energy density is needed from HV batteries
• Improved power density from e-motors
• Increased temperature tolerance from HV batteries, e-motors and power
electronics
• Improved charging infrastructure
• Standardised wireless energy transfer
08/02/2018Conclusions >Electrification is here to stay >Cost of electrification will come down with new innovation >A diversity in Powertrain technology in the near future is to be expected CEVT is dedicated to finding the solutions bringing us into the future
A Geely Auto Company For more information, go to www.cevt.se or http://www.mynewsdesk.com/se/cevt And of course, follow us on Facebook and LinkedIn.
You can also read
