Electric Motor Design for Electric Vehicle's – Case Studies

The participant will be able to understand the power train level targets to be met by automotive manufacturers in the upcoming years and its effect on development of E motors.

• Electric Drive system Targets

• CO2 footprint and driving forces for electrification.

This section will discuss on various measures taken by the research team of Nissan motors for improved electric powertrain performance and efficiency.

• Evolution of Nissan Leaf – 2011 to 2013 to 2018

• Interior PM Magnet Motors and Induction Motors

• Magnet Arrangements & Impacts on Motor Performance

• Reduction of rare earth elements for motor magnets

• Physical Design Changes for Efficiency Improvement

• Light Weight design and manufacturing Techniques for EV propulsion motors

• System Integration & Impacts on NVH

• Sensitivity Analysis & NVH Optimization

• NVH Optimization and its Effects on motor torque & acceleration performance

• Harmonic Content of Radial Force Density

• Optimization of Slot, slot liner, Poles & Winding

The General Motors Cadillac Hybrid uses Two motors for the powertrain. Induction and PMSM Motors. Here the participants will be able to understand the background of this motor selection strategy

• Impacts on Efficiency of motor and inverter system

• Understanding the usage profile of the Induction and PMSM Machines for Hybrid Vehicle applications

• Strategies for torque ripple reduction of the induction and PMSM drives

This section focuses on the key sensor technology applied by the automotive manufacturers in their electric and hybrid vehicle powertrains.

• Advanced Sensor applications for Better Control of EV’s and HEV’s

• Selection Criteria for Position sensors

• Sensor mounting methodologies and its significance on accuracy

• Sensor Angle Calculation and Error Definition

• Comparison of Peak to Peak mechanical angle error

• Exemplary illustration of a resolver rotor position signal processing system.

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