Kinetics Drive Solutions electro-mechanical infinitely variable transmission (EM-IVT) designs combine an electric generator and motor with a planetary gear set in a hybrid configuration. This provides a parallel, dual power path through the transmission permitting it to transfer power in any of three modes – purely electric, combined electric and mechanical, or purely mechanical.
At low speeds, most power is transferred electrically and a small amount mechanically. At high speeds, all power is transmitted mechanically as the transmission “locks up” in an overdrive ratio allowing cruising speeds with low engine RPMs. Between these two extremes, power is transmitted as a mixture of electric and mechanical with the ratio continually favoring mechanical as it progresses upward through the range. Additionally, a two-speed planetary gear with speed matching shift transition expands operating range.