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 ...

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 ...

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 ...

PSC motors rely on the rotating magnetic field that is generated by the applied alternating voltage and corresponding alternating current to turn the rotor. The magnetic field rotates at 3,600 rpm (60 ...

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 ...

In addition to industrial applications of variable-speed motor drives, the home appliance market is another major area where three-phase pulse width modulated (PWM) motor control drives are finding ...