Porsche just reaffirmed that the Taycan will have a 2-speed rear transaxle when it comes to final production. What improvement in acceleration times and range should we expect with this more complex ...

ZF presents its new 140 kW 2-speed drive unit for electric cars (scalable up to 250 kW), which consists of an electric motor, 2-speed transmission and power electronics - all integrated into a compact ...

Prior to the advent of the adjustable-speed drive (ASD), the polyphase induction motor operated as a constant-speed motor. Figure 1 shows the well-known torque and current curves versus speed for the ...

A single-speed motor has one rated speed at which it runs when supplied with the nameplate voltage and frequency. A multispeed motor will run at more than one speed depending on how you connect it to ...

Every service technician should have at least one multi-speed motor in his or her truck, to help in making acceptable substitutions in the field. Multi-speed motors come in two basic varieties. The ...