Each component of an electric powertrain has a large design space to explore, and exploring the trade-offs of each requires physics-based modeling. With Gamma Technologies’ physics-based modeling solutions,
ELECTRIC POWERTRAIN SOLUTIONS
The increasing demand for next-generation mobility makes electric powertrain development increasingly important. GT-SUITE offers a comprehensive workflow for developing electric powertrains for your application, providing not only accuracy but also quick turnaround times. We enable the parallel development of an e-motor, battery pack, and inverters, as well as their integration and optimization to evaluate the overall system performance.
CHALLENGES IN ELECTRIC POWERTRAIN DEVELOPMENT
Companies in the electric powertrain sector face the daunting task of optimizing system efficiency, seamlessly integrating complex components, and meeting stringent performance and safety standards—all within the constraints of a limited budget. This multifaceted challenge demands innovative solutions to drive the advancement of electric vehicle technology.
Design Complexity
trade-offs between different battery chemistries, motor architectures, and inverter architectures can all be reliably explored and quantified very early in the design stage.
Thermal Management
Elevated temperatures and temperature fluctuations pose significant risks to electric powertrains, potentially leading to motor demagnetization, diminished battery health, and temperature derating in inverters.
Thermal analysis is essential for ensuring that these interconnected elements function harmoniously within safe temperature limits, optimizing the electric powertrain's overall performance and reliability.
System Performance
Electric powertrains involve complex interactions among batteries, inverters, electric motors, and control systems. Achieving optimal performance requires balancing numerous factors such as energy efficiency,
thermal management, and power delivery across various driving conditions. In essence, the challenge lies in orchestrating a multitude of interconnected components to deliver optimal and reliable performance across a range of conditions, making electric powertrain development a complex and demanding task.
eNVH
With the inherent quietness of electric motors, any noise, vibration, or harshness becomes more perceptible, influencing the overall driving experience. Managing eNVH is not only vital for meeting customer
expectations regarding vehicle comfort but also plays a crucial role in complying with evolving regulatory standards. By considering motor and inverter design alongside control algorithms, engineers can identify and address potential sources of noise and vibration. Thus, a comprehensive approach to eNVH is essential for delivering a refined, enjoyable driving experience in the evolving landscape of electric mobility.
GT SOLUTIONS FOR ELECTRIC POWERTRAIN DEVELOPMENT
GT-FEMAG is an electromagnetic simulation tool optimized for motor designers, supporting all major motor topologies and model-based optimization. With built-in multi-physics capabilities, GT-FEMAG supports not only electromagnetic analysis but also thermal and mechanical analysis.
GT-AutoLion is a valuable tool for engineers, offering the ability to design, model, and optimize batteries at various levels (cell, module or pack) with different model fidelities (0D, 1D, or 3D) enabling the prediction of performance, degradation, safety and integration of batteries.
GT-SUITE enables comprehensive transmission system simulation, encompassing shift strategy generation, powerflow specification, thermal warmup, lubrication studies, and evaluations of shift quality, noise, vibration, and harshness (NVH). Integration with other GT-SUITE libraries, like vehicle, allows the development of complete predictive powertrain models. Further modeling detail can be incorporated through the general multibody dynamics GT-SUITE library, facilitating evaluation of detailed component-level behavior, including finite element models.
GT-PowerForge is a dedicated design tool that efficiently evaluates multiple power converter solutions. It automatically produces a variety of comparable options by exploring different design factors. GT-PowerForge offers performance estimates for each option, including losses, mass/weight, volume, and costs. These assessments include semiconductor devices, cooling systems, and customizable first-order models to estimate passive component performance.
GT-SUITE provides a comprehensive platform for evaluating the thermal performance of all components. From batteries to motors and inverters, GT-SUITE offers a robust solution, allowing engineers to assess temperature distribution, manage thermal loads, and optimize the efficiency of electric powertrains. This powerful tool enhances design processes, reduces development time, and ensures the reliability and safety of electric vehicles.
With GT-SUITE, users may systematically investigate, and identify the important model inputs, that considerably affect the system’s response, further optimizing the product, to an optimum solution for its application. This helps decrease, the number of design iterations, shorten hardware development time, increase productivity, and thus reduce both testing and costs.
GT-SUITE can accurately predict performance parameters such as acceleration, top speed, energy consumption, range, vehicle thermal management, and more by modeling the e-motor, battery, inverter, controller, and vehicle with relevant inputs. This advanced simulation tool offers comprehensive insights into the overall system behavior and interactions.
GT-SUITE offers a complete workflow for eNVH. Engineers can model electric motors, perform closed-loop modeling of inverters and e-motors, predict forces, and use the data for modal analysis, forced frequency analysis, and more.
GT-SUITE offers an efficient, affordable, and easily maintainable toolchain for crafting electric powertrains. Engineers can seamlessly design electric motors, batteries, create inverters, and conduct in-depth analyses like electromagnetics, thermal, mechanical and control aspects. Additionally, the platform empowers engineers to simulate at the system level, predicting crucial factors such as range, performance, efficiency and more with precision.
ELECTRIC POWERTRAIN USE CASES
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