Suspension form of talk briefly multi-link suspension

Is generally believed that the multi-link (Multi-Link) from the wishbone and trailing arm type suspension evolved. Pass movement or force of the wishbone, and the dragging arm broken down into a number of connecting rods, in order to achieve the equivalent effect. Carefully studied even after depot space multi-link, more than a traditional rocker amounted to more change motion characteristics (where the movement is the suspension system of the action, rather than the movement of the vehicle performance). According to the layout of the connecting rod, we can still be the most multi-link design is divided into class McPherson "or" class double wishbone ", while a handful of cases, the degree of complexity of some multi-link difficult so general. Higher R & D costs, and the space occupied relatively large, multi-link suspension in the form used for the intermediate to advanced models.
Connecting rod and rocker arm
First concept of the connecting rod and rocker arm division. From the definition of the project, only a force at both ends of the rod, and the torque around axial twist trend called "rod so that the rod; force and torque by various directions at the same time, referred to as" arm . " Force in the form of different types, is the main basis of the distinction of the connecting rod and rocker arm. Of course, the appearance on the differences enough people will be able to tell the difference, because the force push and pull the rod shape slender arm to undertake more complex forces and moments, arm body itself will be more stout, while several hinge points with the frame or knuckle, perhaps stronger hinge point structure. Called "composite multi-link rear suspension rocker arm and connecting rod combination multi-link system, such as the Mazda / Ford Focus, Toyota Reiz / Lexus IS such.
Multi-link characteristics
Many people say that the multi-link suspension is comfortable suspension, really? Use of a complex multi-link kinematic geometry through different link constitute a constraint conditions obtained in conformity with the requirements of the depot instantaneous motion center (knuckle around a point of rotation which is located at a certain tract arc, a position specific corresponding to the center of the circle) and the corresponding trajectory. This walking system suspension system guided movement, according to the linkage design, and have different characteristics. However, increasing the comfort requirements of senior automotive, multi-link more often is used to "create" comfort. For example, in suspension uplink (analog obstacles encountered protrusions) kingpin inclination is more closer to the forward direction, the by protrusions process more smooth, So depot will turn to the section below the connecting rod design for the last row will knuckle pull back the top of the rod is in the last row will knuckle push forward So knuckle uplink, kingpin anteversion increases, smoother through the barrier to meet the comfort needs of. However, in some models, it can also be designed high movement, such as the Nissan GTR, Porsche 911, the rear suspension is multi-link system.
Multi-link modified
Under multiple constraints, multi-link system at the design stage, it has to be related to the very complex kinematics computation theory, as well as a series of simulation tests. Tuner, multi-link set-make them quite a headache. Modified product is now commercially available multi-link, for the performance of its publicity, at most, is the "restore factory settings" or "corrective the eight gnawing tire phenomenon", the effect of this recovery, seldom raised "significant enhance the handling performance of such rhetoric. In order to effectively enhance the driving performance of multi-link, unless they have the data of the original car, and have comparable depot suspension engineering technical force. The more complex, you want to get the absolute positive effect by adjusting, the harder.

As shown, this is very typical from McPherson suspension improvements from the second link front suspension. Two-link the connection point of the knuckle is coaxial with the kingpin axis of the shock absorber column, telescopic suspension so it will not bring about changes in the caster angle (Caster).

As shown, this is very typical from McPherson suspension improvements from the second link front suspension. Two-link the connection point of the knuckle is coaxial with the kingpin axis of the shock absorber column, telescopic suspension so it will not bring about changes in the caster angle (Caster)..........