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Everything you ever wanted to know about four-wheel steering

GMC GMC Sierra EV and GMC HUMMER EV CrabWalk 9.4629507 1152x648

The second operation of the active 4WS is the steering angle of the same phase in the back wheel. Turn the wheel right, and the back wheels also turn a bit to the right. However, the back angle is less than the angles of the opposing phase in the above scenario. This improves rapid stability, such as when the driver changes the lane or corner on the race through recreational twists or on the race race. Depending on the design and purpose of the vehicle, the right steering angle varies from 2.5 degrees to 10 degrees.

Four -wheeled steering, in hard parts

In real nuts, bolts and notorious, Honda first brought 4WS into modern production as an option in the 1988 Prod SI. Nissan followed it with his hacas system, and Mazda had a system that had a very limited production, but Honda made the largest splash.

The Honda system was completely mechanical. He used the shaft connecting the front steering rack to planet gear. The gear created a phase (direction) and rear steering degree for the steering wheel input. The shaft caused a sliding stick that worked like a rack of the rack and the pineine steering gear, took the input to the rear wheels.

At small steering angles, the back wheels became like the fronts (in the same direction) in a maximum of 1.5 degrees. At about 270 degrees larger than 270 degrees than the center, the rear wheels run more than 5.3 degrees with fronts, and tighten the turning circle about 10 %.


A cutway of Honda Mechanical 4WS System.

The operating mechanism of Honda’s Reare Steering Box connects two different cranks (one is invisible), resulting in different stages using planet gear.

Honda



Initial Honda test mule, together with two contracts.

Honda

The results of the 1980s and the 90s .The results were impressive. Some auto -critical, Thus the most brainstorm of British writersThe third and fourth -generation Honda was deployed with 4WS, the LJ Set Wright of the car magazine said. Weight, feeling, accuracy and telepathic information all sent automotive enthusiasm.

Four -wheeled steering, digitally presented

Since Honda’s engineers worked on their system outside Tokyo about 37 km away, Nissan worked on the variations of his hacking (“high capacity actively controlling steering”). Less than just about 90 km per hour (55 miles per hour) and 200 km per hour (125 miles per hour), it used a computer -controlled hydraulic activity to move the lower background links. A computer indicated the rear steering rack, which depends on the speed and the front steering angle, allowing the plus or minus one degree to change toe.

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