Motor Control
Machine models and field-oriented control, from simulation to real-time validation.
Models & control algorithms
SL Propulsion
Electrified propulsion system service with real-world industry know-how and academic depth
Discuss your project →DEEP EXPERTISE. REAL-WORLD IMPACT. A MORE ELECTRIFIED TOMORROW.
Concept model — pending technical review.
Focused expertise. Tangible outcomes.
Performance & efficiency
Motor and inverter loss modeling, efficiency maps and HIL evaluation.
Loss maps & efficiency analysis
Testing & training
Prototype testing, vehicle calibration and practical motor-control training.
Test plans & training
TECHNICAL VISUALIZATIONS
Explore all 17 plots ↗System Efficiency
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SELECTED PROJECTS
View all projects →Real engineering challenges. Practical insight.
VEHICLE CONTROL
Dynamic Motor Drive
- Challenge
- Improve low-load propulsion efficiency through control software.
- Approach
- Torque modulation while preserving average requested torque.
- Evidence
- Reported 0.6% CLTC range gain; rear axle only, Li Auto L9.
MOTOR CHARACTERIZATION
EESM modeling & testing
- Challenge
- Characterize a production motor without a supplied control model.
- Approach
- Identify nonlinear parameters across rotor excitation settings.
- Evidence
- Efficiency mapping and an offline model, per project record.
Work directly with the seasoned expert.
Dr. Siyu Leng
Principle engineer
Technical focus
Motor modeling, power electronics and drive control.
Education & research
Ph.D., Florida State University; Postdoctoral Fellow, University of Alberta, Former Staff Engineer, Silicon Valley High Tech Company
Selected contributions
Electric aviation software, motor drives and vehicle calibration.
Read the biography and supporting APEGA feature.
View full profile →WHO WE WORK WITHDifferent challenges.
Different challenges.
A common drive.
We work with Tier 1 motor suppliers and EV, eVTOL and electric propulsion system developers.
Tier 1 motor suppliers
Practical engineering support to improve performance, reliability and manufacturability.
System developers
Technical insight for integrated electric drive systems and new applications.
Research teams
Independent analysis and technical guidance for exploratory and advanced concepts.
A clear path from challenge to progress.
- 1
Scope the challenge
Understand your goals,
constraints and context. - 2
Agree deliverables
Define the right analyses,
outputs and timeline. - 3
Analyze and review
Apply simulation, calculation
and engineering judgement. - 4
Document next steps
Provide clear findings and
practical recommendations.
INSIGHTSIdeas and analysis for a more
View all insights →Ideas and analysis for a more
electrified future.
TECHNICAL FUNDAMENTALS
From losses to temperature rise
How electrical, magnetic and mechanical losses translate into heat and what it means for thermal design in electric machines.
Read article →
TECHNOLOGY OUTLOOK
Next-generation electric drives
Potential, constraints and engineering trade-offs.
Read article →LET’S TALK
Discuss your project.
Tell us about your engineering challenge.
