MagneRide Suspension

In this brief article, we will discuss the importance of the MagneRide suspension, its working principle and the vehicles that feature the MagneRide suspension.

What is the MagneRide suspension?

Magnetic Ride Control Dampers, also called MagneRide, developed by Delphi Systems, were first launched in 2002 in the Cadillac Seville. The MagneRide is currently in its 4th generation of development and manufactured by the BWI Group.

Magneride dampers feature a monotube damper filled with a damping fluid that comprises a special mineral oil that has metal infused, called Magneto-rheological (MR) Fluid. The speciality of MR Fluid is that it changes its viscosity in proportion to the Magnetic applied to it. The MR Damper’s damping settings are changed using Magnetic energy in an active way.

The MagneRide is an Active Suspension system that uses  wheel-motion sensors to continuously sense suspension movement and acceleration and instantaneously alter the damping rate of the shocks. 

How does the MagneRide Suspension work?

  • In Contrast to the conventional hydraulic shock absorbers that force fluid through a series of internal valves, the MagneRide shock absorbers simply vary the amount of charge to the fluid inside the strut and vary its viscosity, and in turn, the damping. 
  • The basic principle of the MagneRide is that a thicker, or more viscous, damping fluid would offer more resistance to flow and, as a result, generate a high damping force. Conversely, a less viscous, or thinner fluid, would offer less resistance to flow and therefore generate a lower damping force.
  • The Damper has electromagnetic actuators that create a variable magnetic field. When the magnetic field is activated by applying current, the metal infused oil molecules bond together to form fibrous structures with a consistency, proportional to the intensity of the magnetic field. The intensity of the Magnetic field is proportional to the current applied to the actuator.
  • Starting the third-generation onwards, MagneRide actuators now have two coils instead of one inside of each damper piston. 
  • The reason is that two coils allow the system to react faster, when it is deactivated. By using two electromagnetic coils wound in opposite directions, eddy currents nullify each other, causing the magnetic field to collapse almost instantaneously. This improved the reaction time of the damper by 12 milliseconds. 
  • When the magnetic field collapses, the oil molecular bonds separate and the MR fluid’s viscosity drops. The MR Fluid then passes easily through the pistons, reducing the damping force.
  • The MagneRide system is connected to an Electronic Control Unit (ECU) that receives signals from the wheel-motion sensors and accelerometers. 
  • The ECU calculates the damping required at any particular instant and varies the damping force according to the User-selected Ride Mode.
  • There are four modes: comfort, normal, sport plus, and race that the user can select from. “Normal” gives the best riding experience. It is a comfort-oriented calibration that can handle multiple driving situations and is more suited to daily driving on the street. “Sport plus” is more focused on sporty style of driving where the steering response is more spirited. “Track” mode or race mode is perfect for road courses, autocross, as it offers the highest level of control. “Drag” mode focuses on pitch control for easy launches”. 

What vehicles have MagneRide Suspension?

  • Currently, MagenRide is available on the Cadillac CT4-V and CT5-V, and the CT5 Sport as standard equipment.
  • In General Motors trucks, the RPO code Z95 denotes the Magneride Suspension. It is available as an option in all GM full size SUV’s like the Yukon, Tahoe and Escalade, and as standard in the Denali Trim.
  • In 2015, the Ford Mustang GT 350 and the Mustang GT 350R were introduced with the MagneRide suspension option.
  • Other High-end sports car brands that incorporate the MagneRide Suspension are Ferrari, Lamborghini, Audi and Land Rover

Conclusion

In this brief article, we have discussed the importance of the MagneRide suspension, its working principle and the vehicles that feature the MagneRide suspension.

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