By Ohad Stauber
VP R&D and Software Control
With over two decades in engineering, I’ve seen how software and hardware integration can transform tranportation. At REE, we’re redefining e-mobility with software-defined vehicle (SDV) platforms and x-by-wire systems. To test our technology, we took the P7-C electric chassis cab to a frozen test track. The result? Exceptional traction control and torque vectoring that set it apart from conventional trucks. Let’s explore the significance of this achievement and how our modular EV platform is shaping commercial vehicle innovation.
At REE, our platform is built around the SDV concept, where core driving functions are governed by software rather than mechanical linkages. The P7-C is the first medium-duty U.S. truck with full x-by-wire control—steer-by-wire, brake-by-wire, and drive-by-wire. Traditional steering columns, hydraulic brake lines, and mechanical driveshafts are replaced with electronic sensors, actuators, and control software.
A software-defined vehicle continuously evolves. Features like adaptive cruise control and energy management improve through over-the-air updates, enabling commercial fleets to enhance performance and safety over time. Instead of being locked into a truck’s capabilities at purchase, fleet operators can benefit from continuous upgrades.
Precision Traction Control & Torque Vectoring through SDVs
Testing the P7-C on ice showcased the power of our SDV and x-by-wire technology. Imagine an 8.3-ton truck gliding over a frozen lakebed without losing stability—that’s what we achieved. For the third consecutive year, our engineering team pushed the P7-C to its limits in sub-zero Sweden, validating traction control, ABS and stability systems in extreme conditions.
How does the P7-C maintain grip where conventional trucks struggle? The answer lies in precise traction control and torque vectoring, made possible by our x-by-wire corner-unit architecture. Each wheel has an independent motor controlled by a central vehicle unit. If a wheel slips on ice, torque is instantly redistributed to wheels with more grip—within milliseconds. This continuous torque vectoring provides unparalleled stability.
Our brake-by-wire system also enhances safety in icy conditions. Unlike traditional pneumatic or hydraulic ABS, our system adjusts brake pressure at each wheel more quickly and precisely, reducing stopping distances and maintaining steering control even on frozen surfaces. Watching our SDV adapt in real-time, preventing wheel lock or spin, is witnessing physics and computing power working together.
This level of control isn’t just beneficial on ice; it enhances handling on any surface. The P7’s all-wheel-drive, all-wheel-steer system allows for tight turning radiuses, precise maneuvering in loading docks, and confident driving on slippery slopes. Whether in rain, mud, or snow, fleet operators can rely on the P7-C’s stability and responsiveness.
By leveraging a modular corner architecture, we achieved something groundbreaking: the first fully x-by-wire-certified medium-duty truck in the U.S. The P7-C meets stringent FMVSS safety standards with its innovative design. This proves that modular, software-centric vehicle design isn’t futuristic – it’s here and delivering real-world performance.
“Complete, Not Compete” and the Future of Commercial EVs
One of REE’s core philosophies is “complete, not compete.” Traditional OEMs often view new entrants as competitors, but REE’s approach is different. We don’t aim to replace established truck manufacturers; we aim to enhance their offerings with advanced EV platforms. By providing full x-by-wire corner technology and modular chassis solutions, we enable OEMs and new electric brands to adopt cutting-edge technology without reinventing the wheel.
This strategy accelerates EV adoption. Instead of forcing fleets to choose between legacy and new technology, we provide a seamless path to electrification. Our cooperative model helps both legacy manufacturers and emerging EV brands bring advanced electric trucks to market faster and with lower risk. The goal is industry-wide progress toward a smarter, greener transportation future.
The P7-C’s ice performance is just one example of how far vehicle technology has come. A commercial EV that maintains traction and stability on ice using software-defined control would have seemed impossible not long ago – yet here it is, outperforming traditional vehicles.
Looking ahead, these innovations pave the way for autonomous driving and smart fleet integration. With all aspects of motion software-controlled, incorporating autonomous algorithms and vehicle-to-everything (V2X) communication becomes easier. Our platforms are autonomous-ready, with drive-by-wire and steer-by-wire systems that allow direct computer control with no additional hardware. Thanks to redundant safety designs, our technology meets the reliability standards required for self-driving systems. We’re already seeing interest in using REEcorner platforms for autonomous shuttles and delivery bots.
At REE, we embrace a mindset unrestricted by legacy thinking. By reimagining everything—from suspension placement to steering commands—we’ve created a platform that integrates mechanical, software, and systems engineering into a powerful new capability for commercial EVs.
Our “complete, not compete” philosophy reflects the belief that progress is collective. We provide the foundation for others to build upon, accelerating the electric revolution in transportation. Whether through an OEM integrating our technology, a fleet operator experiencing increased uptime, or a driver benefiting from better maneuverability, our success is measured by their success.
The P7-C’s performance on ice is just one chapter in the bigger story: the era of software-defined, modular EVs is here. As VP of R&D and Software Control at REE Automotive, I’m excited to be at the forefront of this transformation. The future of commercial EVs is being written now – and even on ice, the road ahead has never looked more promising.
