Stellantis, the young group made up of the FCA and PSA groups, has unveiled another of its all-new platforms – the STLA Large platform. This is the second of four platforms to be used for its 15 motor vehicle brands. It follows the unveiling of the STLA Medium platform for use with new vehicles in the C and D segments.
For 8 new models initially
It will be the foundation for at least 8 new models from Dodge, Jeep, Alfa Romeo, Chrysler and Maserati which will enter the market between 2024 and 2026. Initially, it will appear in the models of the Dodge and Jeep brands in North America.
The models will cover a full spectrum of vehicle types, from cars to crossovers to SUVs, all of which will have battery electric powertrains.
![Stellantis STLA Medium Platform [2023]](https://www.motaauto.com/wp-content/uploads/2023/07/Stellantis-STLA-Medium-Platform-2023-4.png)
The STLA Large platform is engineered to allow greater levels of vehicle diversity from a base set of componentry. It has been developed with robust and cost-efficient manufacturing processes that can be duplicated in multiple assembly plants globally.
Can support other propulsion systems
While BEV-native, STLA Large can also support hybrid and internal combustion propulsion systems without compromising key vehicle capabilities. The flexibility provides a bridge for customers around the world during the transition to electric propulsion.
The platform’s inherent flexibility enables engineers and designers to adjust the wheelbase, overall length, overall width and height, and ground clearance. A variety of suspension modules and powertrain cradles can be employed to suit vehicle specific performance objectives that include ride, handling and comfort.
Employing advanced high-strength materials, the platform is optimized for weight and rigidity. Components within the platform are packaged to maximize usable interior space and storage. Key comfort and performance components, such as the cabin heating/cooling system, steering, braking assist and propulsion are designed to minimize energy consumption to enhance driving range.
Extensive flexibility
The flexibility includes the unibody (monocoque) platform’s propulsion systems. STLA Large is designed and engineered with the option of 400V and 800V electric architectures. 3-in-1 electric drive modules that incorporate the motor, power inverter and gear reduction can be configured in front-wheel-drive, rear-wheel-drive and all-wheel-drive layouts.
The power inverter employs silicon carbide semiconductor technology to minimize power losses. Propulsion system performance can be upgraded during the vehicle’s lifespan via over-the-air software updates. Fast charging will add up to 4.5 kWh per minute to the 800V battery pack.
Embracing the importance of balancing driving range and cost, the platform initially includes battery pack options with energy ratings between 85 and 118 kWh. Over time, a target of 800 kms has been set and the platform will also be able to accept future energy storage technologies when they reach production readiness.
Huge investment in electrification
Part of the €50 billion (about RM257.2 billion) investment by Stellantis over the next decade in electrification, the STLA Large platform also supports Stellantis’ next-generation electrical and software-defined vehicle technologies such as STLA Brain, STLA SmartCockpit and STLA AutoDrive.
“Our goals for our STLA platforms are ambitious but this is what our customers need from us today,” Stellantis CEO Carlos Tavares said. “Creating a family of vehicles from a well-engineered set of components that is flexible enough to cover multiple vehicle types and propulsions, overperforming any of our current products, will address each of our iconic brands’ customers. The flexibility and agility of this platform is its hallmark and will be a driving force for our success in the shift to electrification in North America.”
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