Bosch introducing CVT for electric vehicles: CVT4EV Bosch is introducing a continuously variable transmission (CVT) with Bosch push belt, specially designed for electric vehicles: the CVT4EV. CVT4EV is a compact variable ratio transmission that supports the performance demands of electric vehicles for a wider audience. The system improves the economy and performance of the electric powertrain, while maintaining the smooth and comfortable character of the electric motor. This is how a CVT works for an electric car. As the speed of car (x axis) increases, traction (y axis) decreases. The CVT ensures a smooth, stepless transition. Source: TU/e.