Electric Machines and Drives

Solution Overview

Physics-Based Simulation Platform

GT-SUITE provides electric machine and drive models across a full spectrum of fidelity, enabling engineers to match simulation depth to their specific objectives.

For system-level studies and vehicle energy management, streamlined efficiency-based models deliver fast, reliable results without unnecessary computational overhead. When greater precision is required, GT-SUITE offers a high-fidelity simulation environment supported by a comprehensive library of electrical components and transistors for detailed drive modeling.

Thermal management engineers benefit from the same platform, with tools to build, validate, and analyze high-fidelity thermal models of electric machines, ranging from individual components to complete cooling systems.

Application Highlights

Scalable Motor Modeling

Various levels of model fidelity, from map-based representations for vehicle performance and energy management, to co-simulation with the most popular 3D electromagnetics tools for NVH and thermal boundary conditions
Embedded integration of JMAG Express Online to evaluate conceptual motor design for efficiency and heat generation
Efficient electrical solver for resolving large system problems such as vehicle-level models and electrical auxiliaries
Well-established 3D-CAD based process in GEM3D creates high-fidelity thermal models of electric machines in either 1D or 3D

Thermal, Control & NVH Analysis

Purpose-built tools for thermal, cooling, control, and NVH analysis of electric machines, all within a unified GT-SUITE environment.

High-Fidelity Thermal Analysis

Discretize the machine structure into thermal masses or finite elements for accurate thermal analysis across the rotor, stator, magnets, and windings.

Comprehensive Cooling Strategy Evaluation

Analyze multiple machine cooling techniques, such as direct contact oil cooling, indirect rotor cooling, and water jacket cooling.

Advanced Machine Control Techniques

Achieve realistic machine response due to machine control with included techniques such as MTPA, Field Weakening, and SVPWM.

NVH and Torsional Vibration Studies via JMAG-RT Integration

Import JMAG-RT models directly into GT-SUITE to conduct torsional vibration mitigation and NVH studies within a full-system simulation context. Bridges electromagnetic detail with system-level noise and vibration performance.

Electric Machines and Drives FAQs

Answers to common questions on motor sizing, thermal modeling, control strategies, and electromagnetics integration within GT-SUITE.

Can GT-SUITE handle both early-stage motor sizing and detailed high-fidelity analysis within the same environment?

Yes. GT-SUITE offers models across the full fidelity spectrum, from fast-running efficiency maps suited for vehicle-level energy management studies, to high-fidelity electromagnetic and thermal simulations for detailed design validation. This means the same toolchain supports your program from concept through to final design, without switching platforms.
How does GT-SUITE approach thermal modeling of electric machines, and which cooling architectures are supported?

GT-SUITE’s GEM3D tool builds high-fidelity thermal models directly from 3D CAD geometry, discretizing the machine structure into thermal masses or finite elements across the rotor, stator, magnets, and windings. Supported cooling configurations include direct oil contact cooling, indirect rotor cooling, and water jacket cooling, giving thermal engineers the flexibility to evaluate and compare architectures within a single model.
Which motor control strategies are available, and can they be used in system-level vehicle simulations?

GT-SUITE includes established control techniques such as Maximum Torque Per Ampere (MTPA), Field Weakening, and Space Vector PWM (SVPWM), enabling realistic machine response to be captured at the system level. The efficient electrical solver is specifically designed to handle large system problems, including full vehicle models with multiple electrical auxiliaries, without sacrificing simulation speed.
Does GT-SUITE integrate with third-party electromagnetics tools, or does it require all modeling to be done natively?

GT-SUITE supports co-simulation with leading 3D electromagnetics tools, and JMAG-RT models can be imported directly to capture torsional vibration and NVH behavior. For conceptual design, JMAG Express Online is embedded within the environment, allowing motor efficiency and heat generation to be evaluated without leaving the GT workflow. GT-FEMAG also provides a native finite-element magnetics capability with its own interactive designer interface for teams who prefer a fully integrated path.