Rear Steering: Difference between revisions

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[[file:010b.jpg|thumb|Rear wheels turn up to 5 degrees]]
[[file:Toyota 4WS video (preview).jpg|thumb|Video of 4WS in action|link= https://d9dks0ahhbx8k.cloudfront.net/5a7a364c199de.mp4]]
[[File:4WS overview.jpg |thumb|Diagram: Rear steering overview ]]
[[File:4WS schematic.jpg |thumb|Diagram: Rear steering schematic]]
[[File:45-06 REAR STEERING CONNECTING PARTS (4WS) page 1 of 2.png |thumb| Diagram: Rear steering, connecting parts (page 1)]]
[[File:45-06 REAR STEERING CONNECTING PARTS (4WS) page 1 of 2.png |thumb| Diagram: Rear steering, connecting parts (page 1)]]


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[[File:45-07 REAR STEERING GEAR (4WS) part-list (preview image).jpg |thumb| Part Listing: Rear steering gear (4ws)|link= Parts Listing 45-07 REAR STEERING GEAR (4WS)]]
[[File:45-07 REAR STEERING GEAR (4WS) part-list (preview image).jpg |thumb| Part Listing: Rear steering gear (4ws)|link= Parts Listing 45-07 REAR STEERING GEAR (4WS)]]
[[File:4WS overview.jpg |thumb|Diagram: Rear steering overview ]]
[[File:4WS schematic.jpg |thumb|Diagram: Rear steering schematic]]




== The World's First Active 4WS ==
== The World's First Active 4WS ==
Sharp steering response and excellent stability have been realized with the world's first rear-wheel automatic steering system. It includes a yaw-rate sensor*, featuring speed and steering-angle sensors, which instantly detects sudden car deflections. Thus, the car hardly drifts at all when driving at high speeds, during lane changes, or in strong crosswinds, drastically reducing the burden of driving and making it safer and more pleasant. An anti-phase rear-wheel steering mechanism coordinated with the steering angle has also been adopted for this 4WS system, assuring quick direction changes at low speeds.
Sharp steering response and excellent stability have been realized with the world's first rear-wheel automatic steering system [https://d9dks0ahhbx8k.cloudfront.net/5a7a364c199de.mp4 as seen in this video]. It includes a yaw-rate sensor*, featuring speed and steering-angle sensors, which instantly detects sudden car deflections. Thus, the car hardly drifts at all when driving at high speeds, during lane changes, or in strong crosswinds, drastically reducing the burden of driving and making it safer and more pleasant. An anti-phase rear-wheel steering mechanism coordinated with the steering angle has also been adopted for this 4WS system, assuring quick direction changes at low speeds.


Note: The yaw-rate sensor detects the angular rotation speed of a car about its horizontal center of gravity. The sensor thus makes it possible to detect changes in the car's direction due to steering, as well as changes caused by external disturbances such as crosswinds or snow.”
Note: The yaw-rate sensor detects the angular rotation speed of a car about its horizontal center of gravity. The sensor thus makes it possible to detect changes in the car's direction due to steering, as well as changes caused by external disturbances such as crosswinds or snow.”
[[file:Toyota 4WS video (preview).jpg|thumb|Video of 4WS in action|link= https://d9dks0ahhbx8k.cloudfront.net/5a7a364c199de.mp4]]


Source:  
Source:  

Latest revision as of 10:43, 18 May 2023

Rear wheels turn up to 5 degrees
Video of 4WS in action
Diagram: Rear steering overview
Diagram: Rear steering schematic
Diagram: Rear steering, connecting parts (page 1)
Part Listing: Rear steering, connecting parts (page 1)
Diagram: Rear steering, connecting parts (page 2)
Part Listing: Rear steering, connecting parts (page 2)
Diagram: Rear steering, gear
Part Listing: Rear steering gear (4ws)


The World's First Active 4WS

Sharp steering response and excellent stability have been realized with the world's first rear-wheel automatic steering system as seen in this video. It includes a yaw-rate sensor*, featuring speed and steering-angle sensors, which instantly detects sudden car deflections. Thus, the car hardly drifts at all when driving at high speeds, during lane changes, or in strong crosswinds, drastically reducing the burden of driving and making it safer and more pleasant. An anti-phase rear-wheel steering mechanism coordinated with the steering angle has also been adopted for this 4WS system, assuring quick direction changes at low speeds.

Note: The yaw-rate sensor detects the angular rotation speed of a car about its horizontal center of gravity. The sensor thus makes it possible to detect changes in the car's direction due to steering, as well as changes caused by external disturbances such as crosswinds or snow.”

Source: