Tesla’s latest patent details a new steer-by-wire system, with a supposed dedicated team ready to integrate this technology into its electric vehicle lineup.
The steer-by-wire system aims to transform the traditional steering mechanism by eliminating mechanical linkages, instead relying on electrical or electromechanical systems, reports Electrek. This technology has the potential to enhance efficiency, offer superior steering configurations, and pave the way for revolutionary vehicle cockpit designs.
Currently, many regions require mechanical linkages in steering systems for a vehicle to be deemed road-legal. Tesla, along with numerous automakers, has already incorporated motors and actuators for drive controls to support features like Autopilot and Full Self-Driving. However, these systems are still mechanically linked to the steering system.
In 2020, Electrek reported that Tesla was assembling a new team in Austin to develop this steer-by-wire system. Subsequently, in 2021, Tesla’s CEO Elon Musk confirmed the company’s focus on the development of a progressive steer-by-wire system, noting it could still be years until fruition.
The patent recently filed by Tesla gives a glimpse into the company’s vision for this technology. The application’s abstract outlines a vehicle steering system by wire designed to control the vehicle’s lateral motion. This system features a steering wheel torque feedback actuator assembly with two controllers, a front road wheel steering actuator assembly with two isolated motors and controllers, two separate power assemblies, two separate vehicle communication networks, and three private system communication networks for each node in the steering system.
This configuration ensures the system’s resilience by isolating faults, preventing a single component failure from endangering the entire system. Moreover, the system may include a differential gearbox road wheel actuator to facilitate the absolute positioning of the road wheels, further enhanced by a set of position sensor assemblies.
Tesla’s design showcases a unique approach that offers redundancy without relying on a backup mechanical steering system. This development marks a significant stride in Tesla’s quest to redefine the automotive industry and create a more efficient, sustainable future.
