Parts, Machinery and Tools

NTN

Rear-Wheel independent steering system
Rear-wheel independent steering system controls left and right wheel steering independently, mechanically disconnected from front steering mechanism. Steering shaft consists of two rods connected by screw, which has variable length depending on engaging screw length. This system is combined type steering which steers rear wheel of both side collectively, and yet it can perform toe angle control as well as same phase / opposite phase steering with front wheel. It does not affect unsprung weight because the system is fixed to vehicle chassis. And also, rigid connection between both sides can balance steady load from left and right, by compensating each other. It contributes to improvement of motion performance of next-generation vehicles such as internal combustion engine vehicle and EV-HEV, by controlling rear wheel by-wire and in coordination with front wheel steering.