An additional approach to increasing efficiency in e-mobility builds on the Group’s extensive expertise in transmission technology: ZF developers have equipped a new, compact electric car drive with a two-speed transmission. “With two gears, we can achieve better acceleration and a higher maximum speed. Another reason for the two-speed transmission was to increase the efficiency of the drive,” says Dr. Stephan Demmerer, Head of Advanced Engineering E-Mobility, adding: “With this combination of a special electric motor with a two-speed transmission, we achieve an optimal system with maximum efficiency.”
The new two-speed electric drive with a maximum output of 140 kilowatts allows a passenger car to be driven at higher speeds with much greater energy efficiency than is the case with conventional electric vehicles. At the same time, the electric vehicle does not lose traction at lower speeds. Together with the integrated power electronics, the electric drive with a shift element ensures an increase in range of up to five percent.