Overall Architecture

To view a video describing the architecture please follow this link.

OSU Vehicle Architecture

To choose the vehicle architecture, the team first created a fuel selection spreadsheet.  The team then gathered up all the information on the available electric motors and inverters to compare each setup to help decide possible architectures. After the selection of the fuel, the team created a powertrain options spreadsheet. All the components of each architecture were modeled by CAD software to ensure there would be proper clearances.  All of the possible architectures were then run in a modified version of CX-Sim.  The results from the simulation were used in meetings discussing the possible architectures for the GM Donated Vehicle. While deciding on the top three architectures, the team discussed the benefits and disadvantages of all the possible choices.  The team took input from all members including the newly recruited member, the GM mentor, and the advisors.

The OSU team's finalized architecture is a Series with Twin Clutch Final Drive configuration.  The engine in the two clutch system is a 1.8L compressed natural gas (CNG) Honda engine re-tuned for E85 fuel. The Front Electric Machine (FEM) and generator is a REMY 82 kW traction motor and the Rear Electric Machine (REM) is an EV1 electric transaxle. The battery pack consists of 5 modules of Lithium-ion Prismatic Cell batteries, provided by A123 Systems, connected in series providing 360 volts.  The two clutch final drive will be custom designed and built by the Ohio State team.

Twin Clutch

The twin-clutch architecture revolves around its front wheel drive custom designed and built twin-clutch transmission which increases performance, functionality, and efficiency with the least number of added components and weight. The twin-clutch design enables the best all-electric vehicle possible by using its weight and hardware to full advantage.