Tackling key challenges of eMotors

OEMs are striving to increase the efficiency of the eMotor/inverter by tackling the following challenges:

  • Deliver a high-efficiency all across the eMotor torque/speed operating range
  • Deliver a wider operating range with higher torque and speed range
  • Deliver more power with less rare earth material and with less costs
  • Reduce the transmission / speed reducer needs and costs
  • Rapid fault detection and response time assuring highest levels of safety for the consumer

Our Solution for Inverter

Silicon Mobility offers a complete solution with a new kind of inverter/eMotor control solution for EV/HEVs delivering unprecedented performances such as:

  • Up to 20% of energy gain by
    • Reduction of switching losses in Inverter
    • Reduction of  Iron losses and coper losses in eMotor
  • 30%  of eMotor torque/speed range increase
  • 50% BoM reduction compare to performance equivalent solutions
  • ASIL-D ISO 26262 design

We offer the following solutions to address the inverter control application:

  • OLEA® FPCU – Safe and real-time and Automotive qualified semiconductor solution which enables a new kind of control algorithm
  • OLEA® APP INVERTER HE – Application software integrating innovative algorithms delivering High Efficiency inverter control

Support for Intelligent Control Algorithms

  • Adaptive PWM Control (APC) with optimized PWM patterns minimizing current harmonics and optimizing e-motor efficiency map thereby extending  the e-motor optimal operating range
  • Soft-Switching : Reduce switching losses and heating in power transistor
  • Support of high electrical motor frequency up to 4kHz
  • Noise cancellation of phase current signals