ormula sae electric racecar - university inn ...€¢ 2016 was our first year competing in formula...

A CCUMULATOR THE C OMPETITION MK.1 VEHICLE SPECIFICATIONS ELECTRICAL S YSTEM Luke Morris, Marketing Manager, Olin Electric Motorsports, Olin College of Engineering Suraj Shroff, Project Manager, Olin Electric Motorsports, Olin College of Engineering F ORMULA SAE ELECTRIC RACECAR SUSPENSION AND TRANSMISSION OUR NEXT CAR: MK. 2 ABOUT THE TEAM • 100V, 66kWh accumulator • 12 Nissan Leaf LiMn 2 O 4 battery modules • 12s1p configuration • 4 segments of 3 modules • Team designed battery management system (BMS) • Delphi connectors • Worked with General Motors Global Battery Systems Laboratory • Manual service disconnects (MSDs) • Main pack disconnect “For the purpose of the Formula SAE competition, teams are to assume that they work for a design firm that is designing, fabricating, testing and demonstrating a prototype vehicle for the nonprofessional, weekend, competition market.” “The vehicle should have very high performance in terms of acceleration, braking and handling” Static Events: • Design Presentation • Cost Presentation • Business Presentation Dynamic Events: • Acceleration • Autocross • Endurance • Dual Zero Motors Z-Force motors (134 HP combined) • 100V, 66kWh accumulator • 12 Nissan Leaf LiMn 2 O 4 battery modules • 12s1p configuration • 2 Sevcon Gen4 motor controllers • 600lb dry weight • Top speed of 60mph • 0-60mph in 3 seconds • Full multilink rear suspension • Chain drive steering • Independent rear wheel drive • Fiberglass body panels • 30 active team members • 8 leadership team members • 2016 was our first year competing in Formula SAE • Previously built an electric go kart and electric reverse trike • Fundraising goal ~$50,000 Goals • Start design from tire data • Lighten everywhere possible • 425lbs target dry weight • Moving from dual motors to one motor with a differential • Using more energy dense, high current cells to reduce accumulator size and weight • More modular electrical system for more efficient debugging • Better electronics enclosures to allow for easier access to components • Dual motors for independent rear wheel drive • Test bed for torque vectoring • Full multilink rear suspension • Ohlins TTX25 MkII dampers • Hoosier 20.5 x 7 13 R25B tires • OZ Racing rims

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Page 1: ORMULA SAE ELECTRIC RACECAR - University Inn ...€¢ 2016 was our first year competing in Formula SAE • Previously built an electric go kart and electric reverse trike • Fundraising

ACCUMULATOR

THE COMPETITION

MK.1 VEHICLE SPECIFICATIONS

ELECTRICAL SYSTEM

Luke Morris, Marketing Manager, Olin Electric Motorsports, Olin College of EngineeringSuraj Shroff, Project Manager, Olin Electric Motorsports, Olin College of Engineering

FORMULA SAE ELECTRIC RACECAR

SUSPENSION AND TRANSMISSION

OUR NEXT CAR: MK. 2ABOUT THE TEAM

• 100V, 66kWh accumulator• 12 Nissan Leaf LiMn2O4 battery modules• 12s1p configuration• 4 segments of 3 modules

• Team designed battery management system (BMS)• Delphi connectors

• Worked with General Motors Global Battery Systems Laboratory

• Manual service disconnects (MSDs)• Main pack disconnect

“For the purpose of the Formula SAE competition, teams are to assume that they work for a design firm that is designing, fabricating, testing and demonstrating a prototype vehicle for the nonprofessional, weekend, competition market.”

“The vehicle should have very high performance in terms of acceleration, braking and handling”

Static Events:• Design Presentation• Cost Presentation• Business Presentation

Dynamic Events:• Acceleration• Autocross• Endurance

• Dual Zero Motors Z-Force motors (134 HP combined)• 100V, 66kWh accumulator

• 12 Nissan Leaf LiMn2O4 battery modules• 12s1p configuration

• 2 Sevcon Gen4 motor controllers• 600lb dry weight• Top speed of 60mph• 0-60mph in 3 seconds• Full multilink rear suspension• Chain drive steering• Independent rear wheel drive• Fiberglass body panels

• 30 active team members• 8 leadership team members• 2016 was our first year competing in Formula SAE• Previously built an electric go kart and electric

reverse trike• Fundraising goal ~$50,000

Goals• Start design from tire data• Lighten everywhere possible

• 425lbs target dry weight• Moving from dual motors to one

motor with a differential• Using more energy dense, high

current cells to reduce accumulator size and weight

• More modular electrical system for more efficient debugging

• Better electronics enclosures to allow for easier access to components

• Dual motors for independent rear wheel drive

• Test bed for torque vectoring

• Full multilink rear suspension• Ohlins TTX25 MkII dampers• Hoosier 20.5 x 7 13 R25B tires• OZ Racing rims

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