Pss=rear wheel follow-up technology, sn=Seine, fk=wealthy and healthy, psa=French markCitroengroup PSS has always been misunderstood as: when the car turns a corner, the rear wheel will deflect a certain angle in the opposite direction to the front wheel. That is, when you turn left into the corner, the rear wheel will deflect a certain angle to the right at the same time. People think this isCitroenRear axle andFrameDrop at connectionrubberCaused by deformation(Actually, thatrubberThe pro cushion has the opposite effect) and thinks that this is what Citroen claims the rear wheel rotates in the same direction Here I tell you that this is not the case In fact, as long as the rear suspension uses the Trailing ARM (trailing arm) to drop the car, there will be more or less: when the rear wheel bears a certain "lateral force" after the car enters the corner, the rear wheel will deflect a certain angle in the opposite direction of the front wheel to help it pass the corner Other than PSArenault.FIAT.FORD.Many of ALFA's sharp front drive cars have this feature, which is entirely due to the inherent characteristics of TRAILING ARM What features does the rear suspension of PSA equipped with PSS have compared with other car manufacturers In fact, the rear suspension of PSA with PSS is a special TRAILING ARM. It maintains the characteristic that the rear wheel deflects in the opposite direction to the front wheel when the general TRAILING ARM enters the corner to help it pass the corner. At the same time, in some special cases, the rear wheel will increase with the front wheel deflecting in the same directionto turn toIt is not enough to maintain the stability of the body. For example, when changing lanes at high speed and turning at high speed, the rear wheels deflect towards the front wheels. That is to say, with PSS TRAILING ARM, it can not only maintain the sharpness of entering the corner, but also give consideration to the stability of high-speed exit. When driving a car with PSS out of a corner or changing lanes at high speed, the buttocks often feel "twisted".This is actually the process of the rear wheel changing from reverse phase to in-phase. I think students who have driven FK SN should have some experience. There are few cars with this feature in the world today..There is no second car factory like PSA that has achieved such perfect results with such simple and exquisite design (using several rubber pads).(PorscheBefore 928, the rear wheels were deflected in the same direction as the front wheelsconnecting rodThe rear suspension, but the system is quite complicated.) This is why the PSA car does not need four-wheel alignment, because the suspension itself is extremely solid and the chassis of the PSA is difficult to deploy, which will greatly damage the tuning of the original car. So the PSS is actually an increase in the reverse deflection of the rear wheels when the car enters the cornerto turn toWhile helping over bend. It also has an exquisite design of turning at high speed, and lane switching at high speed causes in-phase deflection of the rear wheels, which increases steering and is not enough to maintain the stability of the car body
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