Cadillac's Suspension Technology Gets Even Faster and More Precise with ‘MagneRide 4.0'
【Summary】Cadillac’s parent company General Motors claims that its “MagneRide” is the world’s fastest reacting suspension technology, which allows for greater responsiveness and enhanced isolation from road imperfections. The latest version is called “MagneRide 4.0” and it improves the suspension of Cadillac models even further.
The vehicles built by General Motors' luxury division Cadillac are packed with some of the latest and most advanced vehicle technology, including autonomous driving capabilities. In addition, new Cadillac models including the CT4-V, CT5-V and CT5 Sport and Escalade offer magnetic ride control which greatly enhances handling.
Cadillac's parent company General Motors claims that its "MagneRide" is the world's fastest reacting suspension technology, which allows for greater responsiveness and enhanced isolation from road imperfections. The latest version called "MagneRide 4.0" improves the suspension of Cadillac models even further.
The fourth generation of Magnetic Ride Control sharpens the driving performance of the Cadillac models with up to 45% faster damping response, GM says. Nearly every aspect of the previous system was reevaluated for the development of MagneRide 4.0. This includes the sensors, controller hardware, dampers and vehicle tuning methods.
The changes represent the most comprehensive updates since Cadillac introduced the suspension technology nearly 20 years ago on the 2002 Cadillac Seville STS.
Among the improvements GM made is using all-new wheel accelerometers, improved magnetic flux control and an inertial measurement unit that increases sensitivity to body motion, enabling even quicker changes as the suspension reads the surface of the road.
"With MagneRide 4.0, the world's fastest reacting suspension system is now even faster," said Thomas Schinderle, Cadillac vehicle performance engineer.
"When paired with our sedans' award-winning rear-wheel-drive architecture, the result is two of the most responsive sport sedans on the market, with reflexes that elevate the already high threshold of the V-Series legacy."
How it Works
The MagneRide magnetic ride control is an active vehicle damping system that uses electromagnets paired with magnetorheological fluid within the shock absorbers to continually vary their damping rate. The fluid is similar to the conventional oil found in most shocks, however the fluid itself is magnetized.
The Cadillac models with the active damping suspension use wheel accelerometers that can read the road up to 1,000 times per second, triggering changes in the magnetic charge within the fluid that can alter the damping rates of the shocks almost instantly, GM says.
By adjusting the damping rate, the vehicle can better respond to varying road surfaces or sharp turns by maximizing tire contact on the road for greater driving precision.
Among the other new features in MagneRide 4.0 are updated secondary temperature maps that allows engineers to compensate for changes in damper fluid temperature within each shock, which contributes to more consistent performance, especially during performance driving.
In addition, Cadillac engineers incorporated magnetic flux control to create a more consistent and more accurate transition between rebound and compression in the dampers, improving the system's ability to sense and control vehicle body movement.
When combined with a new magnetorheological fluid formula, it also reduces friction within the damper that contributes to smoother overall damping.
A significant reduction in damper friction produces a near "no damping" effect that enables engineers to tune for more pronounced differences between drive modes, which are selectable by the driver.
Other upgrades include hardware and software to improve transient body control to allow Cadillac models to remain more level when cornering.
The new system debuted on the 2020 CT5-V and CT4-V, and its now expanding to the 2021 CT5 Sport and all-new Escalade. Cadillac's 2021 CT4-V (rear-wheel drive) and CT5-V come standard with MagneRide. For the 2021 Escalade, MagneRide 4.0 will come standard on the Sport and Platinum trims.
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