Ferrari patents superior rear-wheel-steering system

Ferrari has used rear-wheel steering on a few of its current fashions to enhance dealing with, however a current patent submitting signifies a extra superior system could also be within the works.

In a patent software filed with america Patent and Trademark Workplace (USPTO) on Feb. 11, 2021, and revealed April 18, 2023, Ferrari discusses linking rear-wheel steering with chassis stiffness, adjusting each “in a simultaneous and coordinated method” whereas cornering.

Ferrari rear-wheel steering system patent image

Ferrari rear-wheel steering system patent picture

Current rear-wheel-steering programs, just like the Digital Quick Wheelbase system launched on the Ferrari F12 tdf in 2015, the rear wheels are normally steered in the identical course because the entrance wheels throughout high-speed cornering. This counteracts the centrifugal pressure pushing the automobile to the surface of the nook, prevents the rear wheels from skidding, and helps the driving force keep the right line, Ferrari notes within the software.

Ferrari proposes utilizing a management unit and digital actuators in any respect 4 wheels to regulate the spring and damper firmness (for vehicles with passive or magnetic dampers), and one other digital or hydraulic actuator to regulate rear steering angle, based mostly on real-time sensor readings to maintain the automobile on the best line. Ferrari describes the system for front-engine vehicles, such because the 812 vary, Portofino, Roma, and the brand new Purosangue SUV.

The quantity of tweaks to every might differ, Ferrari famous. For instance, in medium-speed corners with low lateral acceleration, the rear-wheel steering could do a lot of the work, with the dampers solely getting adjusted as a secondary means.

Ferrari rear-wheel steering system patent image

Ferrari rear-wheel steering system patent picture

Close to the restrict of stability at excessive speeds, a better impact could be achieved by decreasing the middle of gravity of the automobile by altering the stiffness of the connection all 4 wheels to the body. The quantity of rear-wheel steering angle can change between these two extremes.

Patents are not any assure of manufacturing intent, however a system like this might give Ferrari engineers a solution to additional sharpen the dealing with of Maranello’s sports activities vehicles. It additionally appears a bit extra believable than the gas-thruster system Ferrari additionally not too long ago tried to patent. This might use jet-like thrusters to assist acceleration, or probably even stabilize a automobile in in any other case uncontrollable slides or spins, however the necessity to retailer high-pressure compressed air onboard to energy the thrusters might be a problem.