http://www.autozine.org/technical_school/traction/4WD_2.html Yes, this is the ultimate form of 4-wheel drive! Ridiculously, Dr. Ferdinand Porsche did built a 4WD electric car with individual motors in 1900. It makes us wonder why we wasted a century, countless of money and manpower to develop mechanical solutions like LSDs, viscous couplings, electrohydraulic multi-plate clutches and active differentials just to serve the same purpose!
我在2017 購買VW Golf R 時,看了以上文章,了解目前引擎車四輪驅動各種設計的優缺點,看完得到的結論如同文末的感嘆,其實四輪驅動最完美的設計是四輪分別由4個馬達來驅動,這樣才能做到4輪可以任意調整扭力,可以有任意的轉速,保時捷博士在1900就造了這樣的電動車,但後來人們花了一世紀的時間與大量金錢研發各種單引擎動力車所需要的四輪傳動系統