Perriard, "Analytical formula for the torque/emf constant of a slotless BLDC motor," presented at the IEEE Conf. Elec- tromagnetic Field Computation, CEFC, 2006, paper 10059.M. Markovic and Y. Perriard, "Analytical formula for the torque/emf constant of a slotless BLDC motor," in Pro...
The torque ripple of brushless dc (BLDC) motors at low rotation speeds is prominent, while in the majority of working time of the automotive electric power steering (EPS) system, the steering rate is low and the assistant motor runs at low rotation speeds. Therefore, to develop a high-perfo...
In fact, it can be simply calculated according to the calculation formula: The manual gives the calculation formula: The general motor line back electromotive force should be: Ke = Vpp/(2* √2) *16.67*N*T, which should be line electromotive force = phase*√3. You can ...
The motor-drive model consists of a 3-phase power stage plus a Brushless DC motor. The power for the system is provided by a voltage source (Ud). Six semiconductor switches (SA/B/C t/b), controlled elsewhere, allow the rectangular voltage waveforms (see Figure 3-2) to be applied. ...
An emf induced by motion relative to a magnetic field is called a motional emf. This is represented by the equation emf = LvB, where L is length of the object
Therefore, to develop a high-performance EPS system with a BLDC motor, the problem of torque ripple at low rotation speeds must be solved. Otherwise, the steering feel will not be smooth. This paper proposed an algorithm based on BLDC motors' essential torque formula combined with the back-...