Magnetorheological shock absorbers

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As magneride referred to special shock absorber provided with a magnetorheological fluid are filled. They are mainly used in the automotive industry and mainly used in sports-oriented vehicles. The required damping can be changed very quickly depending on the driving situation and road conditions. This type of shock absorber enables significantly better damping and greater driving comfort than conventional shock absorbers.

Various automobile manufacturers offer “magnetorheological shock absorbers” either as standard or as an option in their models. However, the brand names are partly different.

functionality

The principle is similar to the conventionally used hydraulic dampers, in which the spring movement of the wheel is dampened by the displacement of a hydraulic oil. The fluid used, a special magnetorheological damper oil, is interspersed with microscopic, magnetizable metal particles. A magnetic field is now generated in the shock absorber with an electromagnet . The metal particles are aligned in the direction of the magnetic field and thus have a decisive influence on the viscosity , i.e. H. the fluidity of the damper oil. By applying a voltage, the arrangement of the magnetic particles and thus the viscosity of the liquid, which reacts almost instantly, is varied, which changes the response behavior and hardness of the shock absorber. Sensors record the driving status, send the data to the control unit and after evaluating the data, the shock absorbers are adjusted accordingly.

example

The unevenness of the road is recorded by a control unit within a few milliseconds , so that the shock absorber can be adjusted immediately while driving. This happens so quickly that the driver does not notice it.

Audi

The name Magnetic Ride refers to a shock absorber system from the automobile manufacturer Audi , in which the damping map changes when the damper oil is activated via a magnetic field.

The damper characteristics can be adapted to the respective driving situation via the strength of the magnetic field. The system appeared in 2006 with the introduction of the second generation of the Audi TT . In addition to the R8 sports car , Audi now also offers Magnetic Ride in the compact class in the A3 .

Ferrari

Ferrari uses the same system under the name Magneride in the models 599 GTB Fiorano , 612 Scaglietti , California , Portofino as well as in the F430 and the Ferrari 458 Italia .

General Motors

Magnetic Selective Ride Control is the market name of the American automobile manufacturer General Motors for the specially developed magnetic-rheological shock absorber system, which is also known as MSRC . GM first used Magnetic Selective Ride Control in 2000 in the Cadillac Seville . It was developed by the Delphi Corporation and from 2003 also offered for the Corvette C5 at an additional cost. There the system had a selector switch in the dashboard or the center console, with which it was possible to choose between "Touring" and "Sport".

Magnetic Selective Ride Control is currently used exclusively in the Cadillac models CTS , STS , SRX , Escalade and XLR as well as in the Camaro ZL1 and Corvette C6 . Magnetic Ride Control was also available as an option on the 6th generation of the Camaro, which was first presented in Detroit on May 16, 2015.

Individual evidence

  1. B. Heissing, M. Ersoy, S. Gies. Landing gear manual. 3rd edition, p. 297 ( limited preview in Google book search)
  2. Camaro configurator. In: www.chevrolet.de. Retrieved July 10, 2016 .