The MathWorks announced that General Motors (GM) has developed a dual-mode hybrid powertrain control system using The MathWorks' Model-Based Design tool. Using software tools for scientific computing and modeling simulations, including MATLAB and Simulink, GM designed the powertrain prototype in nine months, which is 24 months shorter than expected. This complex control system is currently in production and used in GMC Sierra Hybrid, GMC Yukon Hybrid, Chevy Tahoe Hybrid, Chevy Silverado Hybrid and Cadillac Escalade Hybrid.
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The dual-mode hybrid powertrain is part of GM's diverse hybrid program, which is designed with a variety of hybrid and electric vehicle technologies to meet a variety of driving styles and needs. The dual-mode hybrid powertrain is designed to create optimum fuel efficiency in urban and highway driving. This system combines a conventional engine with two 60 kW motors integrated into the automatic transmission and introduces New components such as batteries and power electronics.
With the tools of scientific computing and modeling simulation, GM uses Model-Based Design to enable engineers with diverse engineering backgrounds to collaborate better. Using MATLAB and Simulink, GM engineers can now work in a single environment, mathematically model the performance of a dual-mode hybrid assembly, design software and verify its functionality, then simulate the entire system model to accurately predict and Optimize performance. This enables global development teams to communicate and communicate on requirements and design changes, and to resolve problems early in the design process, saving valuable time and resources.
Larry Nitz, executive director of GM's Hybrid and Electric Powertrain, said: "Our company's philosophy is to develop sustainable transportation systems by continually improving fuel economy and reducing emissions. Model-Based Design It allows us to visualize the powertrain, which makes the design smarter and more precise, and can be integrated into our cars more quickly. The powertrain is a key component of our hybrid development blueprint." GM An industry leader in control system integration with hundreds of employees dedicated to the development of powertrain control systems.
Steve Toeppe, senior manager of automotive engineering at The MathWorks, said: “GM has been at the forefront of the hybrid vehicle market, introducing a number of new cars with low fuel consumption to consumers, while working to ensure that their vehicles and manufacturing plants do not have a harmful impact on the environment. I am very pleased to see that GM is using Model-Based Design to develop a new generation of hybrid technology products that will enable the company to continually improve the fuel economy of its vehicles."
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