US 12,344,332 B2
Augmented rack and pinion steering system
Ronald S. Bandy, South Lake Tahoe, CA (US)
Filed by Ronald S. Bandy, South Lake Tahoe, CA (US)
Filed on Apr. 28, 2022, as Appl. No. 17/731,641.
Application 17/731,641 is a continuation in part of application No. 17/115,573, filed on Dec. 8, 2020, granted, now 11,952,049.
Prior Publication US 2022/0266899 A1, Aug. 25, 2022
Int. Cl. B62D 5/22 (2006.01); B62D 1/16 (2006.01); B62D 3/12 (2006.01); B62D 5/04 (2006.01); B62D 5/06 (2006.01); B62D 5/065 (2006.01); B62D 7/18 (2006.01)
CPC B62D 5/22 (2013.01) [B62D 1/16 (2013.01); B62D 3/12 (2013.01); B62D 5/0409 (2013.01); B62D 5/062 (2013.01); B62D 5/065 (2013.01); B62D 7/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A steering system for a vehicle comprising:
an electric assist steering column, wherein the electric assist steering column multiplies a steering input torque;
an augmented chain and sprocket assembly having an input shaft and an output shaft, the input shaft is coupled to the electric assist steering column, and wherein the augmented chain and sprocket assembly multiplies a steering input rotational speed;
a steering shaft coupled to the output shaft of the augmented chain and sprocket assembly;
a rack and pinion gearset having a pinion and a rack, the pinion is coupled to the steering shaft, wherein the pinion shaft exerts the multiplied steering input torque at the multiplied steering input rotational speed to the rack to displace the rack linearly at a rack and pinion gearset slow steering ratio;
a steering wheel attached to the electric assist steering column to receive a steering input having the steering input rotational torque and the steering input rotational speed;
wherein the electric assist steering column multiplies the steering input rotational torque and the augmented chain and sprocket assembly multiplies the steering input rotational speed and transfers the multiplied steering input rotational torque and the steering input rotational speed through the steering shaft to the rack and pinion gearset having a slow steering ratio to provide a quick steering response to the steering system with negligible bump steer during articulation of the steering system.