Wednesday, January 27, 2010

High Voltage Transmission Detail

Cutaway of GM's Two-Mode Hybrid transmission. Supplemental power comes from two 60kW motors housed within the electronically variable transmission. The two electric motors work in tandem with four fixed gears to distribute both gasoline and electric power as needed. The electric motors have two distinct modes of operation depending upon city or highway driving and can use the electric motors for boosting and regenerative braking. Claims include close to 40% fuel efficiency improvement in city driving. Chrysler and BMW Group formed a cooperative effort with GM called the Global Hybrid Cooperation, to help develop this next-generation tranny.