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The MathWorks today announced that General Motors Company (GM) has developed its Two-Mode Hybrid powertrain control system using Model-Based Design. By using math and simulation-based tools from The MathWorks, GM designed the powertrain prototype within 9 months, shaving 24 months off the expected development time. The complex control system is currently in production in the GMC Sierra Hybrid, GMC Yukon Hybrid, Chevy Tahoe Hybrid, Chevy Silverado Hybrid, and Cadillac Escalade Hybrid vehicles.

The Two-Mode Hybrid powertrain is part of GM’s diverse hybrid and electric vehicle program, with multiple propulsion technologies designed to meet global driving patterns and needs. Created to optimize fuel efficiency in both city and highway driving, the Two-Mode Hybrid powertrain combines a conventional engine with two 60-kW electric motors integrated into an automatic transmission, and it integrates with new components such as battery and power electronics.

By adopting Model-Based Design, where the development process centers around a system model, GM engineers increase time savings. Also, by verifying the control system before hardware prototyping and by using production code generated from the controller models, GM has rolled out production vehicles featuring the hybrid powertrain within four years of starting the control system design process. The ability to reuse design information has helped the global development teams foster more efficient communication and reduced response time, eliminating integration issues.

(Source) Press

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