Why does everyone say that the French car chassis is good? What's good about it?

French classic car chassis: rear wheel drive steering technology. Car owners who have driven French classic cars generally know that one of the three old Citroen models of Fukang is driven by the rear wheel; Some old Citroen models even have a hydraulic suspension system. Although the technology is not high, it also shows that the old French car has enough materials. Even Citroen Fukang has a unique chassis design, which also brought Lao Fukang a chassis that surpassed the same level at that time. There are several types of rear wheel tracking.

Most of the old Citroen models adopt passive rear wheel follow-up, which is realized by hanging the deformation of rubber sleeve. Different from GTR, the control arm pull rod is active, and the speed is lower than 60, which is contrary to the front wheel, reducing the steering radius; The vehicle speed is above 60, driving in the same direction, up to 3 degrees. In fact, it is a very simple physical structure, not complicated. The joint between the rear suspension and the vehicle body is provided with a hard rubber block. When the vehicle turns, the left and right suspensions are unevenly stressed, and the rubber blocks will be deformed due to the pressure, which will produce a certain angle change similar to rear wheel steering, thus realizing rear wheel steering.

It looks simple, but this is a patented technology of Citroen, which greatly improves the high-speed stability of Citroen. Now legal car: independent suspension can show the texture of independent suspension. With the passage of time, why can't the rear wheel servo system be seen legally now?

Reason one: control the cost of vehicles.

Reason 2: With the development of technology, vehicles can have good handling only by front wheel steering, so the steering technology of rear wheel drive gradually fades out of people's sight. In addition to the powerful functions of electronic stability system, the rear wheel servo system is particularly redundant.

Adhere to the legal brand: torsion beam semi-independent suspension adopts McPherson independent suspension in the front suspension and variable beam suspension in the rear suspension, also known as plate suspension. French cars have unique chassis adjustment ability. We have to admit that French cars can convert non-independent suspension into independent suspension texture, and PSA can convert non-independent suspension chassis into independent suspension models with buoyancy and weight similar to those of American commercial vehicles, and even surpass their peers in some aspects.