小佛大概只能夠4WD( 四輪傳動 )
至於 4WS ( 四輪轉向 ) 幾乎不可能
整個底盤後輪全部要換掉
加上複雜的控制系統
就好像小佛加裝 ACC 主動巡航一樣
除非原廠一開始就設計好.....
底下有搜到解釋
記得很久以前有看到中文解釋,已經忘了
英文加減一下
http://www.wisegeek.com/what-is-four-wheel-steering.htm
our wheel steering is a relatively newtechnology that improves maneuverability in cars, trucks and trailers.It should not be confused with
four wheel drive in which all four wheels of a vehicle are powered.
In standard two wheel steering vehicles, the rear set of wheels arealways directed forward therefore and do not play an active role incontrolling the steering. In four wheel steering systems, the rearwheels can turn left and right. To keep the driving controls as simpleas possible, a
computer is used to control the rear wheels.
As shown in the drawing below, most four wheel steering systems can control the rear wheels in the following fundamental ways:
- At slow speeds, the rear wheels are turned in the opposite direction of the front wheels. This can lessen the turning radius by approximately 20%.
- At faster speeds on the highway, the rear wheels are turned in the same direction as the front wheels. This improves lane changing maneuverability and is particularly beneficial for vehicles towing a trailer.
slow speeds
rear wheels are turned
in opposite direction
of front wheels
fast speeds
all four wheels
are turned in
same direction
