Design, development, implementation, optimization, and testing of motor controls algorithms for electrical machines including interior permanent magnet machines (IPM), surface permanent magnet machines (SPM), and induction machines (IM).
Specification and development of requirements related to the motor controller.
Documentation of algorithm development and testing results, and integration of the documentation within the relevant tools.
Provide feedback and assistance to other systems requiring motor controls support like machine prototype development, powertrain controls development, or traction inverter development.
Interact with vendors, suppliers, and customers as needed.
Up to 25% domestic travel
Master’s degree in electrical or mechanical engineering +3 years of experience
Good understanding of traction inverter drives and electric motors including IPM, SPM, and IM.
In depth knowledge and hands on experience of field-oriented control for PM and/or IM. Experience with complex vector current control schemes is a plus.
Experience with pulse width modulation (PWM) schemes including sine PWM and space vector PWM. Experience with discontinuous modulation schemes, and overmodulation techniques up to full voltage utilization (six-step) is a plus.
Knowledge of digital observer and filter design and implementation.
Basic knowledge of embedded C and capability of converting an algorithm in efficient C-code that is compliant with automotive (e.g., MISRA) and company standards.
Proficient with modeling, simulation and validation using tools like Matlab/Simulink.
Excellent communication and interpersonal skills.
Well organized and good documentation skills.
Familiarity with practical considerations like dead-time compensation, delay compensations (PWM, ADC, etc), consideration of voltage limits, variation of the switching frequency.
Familiarity with common development stages and tools like model in the loop (MIL), software in the loop (SIL), hardware in the loop (HIL), and full system level testing (dyno, vehicle).
Ability to support the design process at any stage.
Familiarity with position and speed measurement devices like resolvers and encoders.
Familiarity with at least one or two MCUs relevant for motor controls.
Basic knowledge of communication interfaces like CAN, SPI, I2C.
Experience with debugging tools like CANape and CANalyzer.
Good trouble shooting skills and understanding at the system level (electrical propulsion system including gearing, powertrain controls and battery system).
Experience with software tools like CCS or Eclipse and software management systems like GitHub and familiarity with software validation and release process.
Functional safety related qualifications (ISO26262) are a plus.
3 years of work experience and a PhD in related to motor controls, electric drives and/or electric machines.