A reader tips me off to this. The story is from February and reports on January tests of a new computer-controlled suspension that hopes to greatly improve the control, speed, and ride of Stryker LAVs.
The core of the system tested is 8 dampers & controllers using proprietary algorithms to modulate individual wheel forces within 4 milliseconds in response to terrain inputs and body motion. MillenWorks engineers retained full functionality of the stock Stryker vehicle’s pressurized gas spring & ride height management system while integrating the electrically controllable MR technology into the physical envelope of the original damper.
“The stock vehicle utilizes a very capable suspension load-leveling system, and it was a good challenge to ensure we didn’t lose that important functionality in the process of incorporating our controllable damper,” noted Project Manager Peter LeNoach. “The net result is a high-performance suspension system that is bolt-on retofittable, simple, with operation that is completely transparent to the vehicle and its operator.”
The system is called Magneto-Rheological Active Damper Suspension (MROADS) and is built by Millenworks. The tests were apparently pretty successful.
Mobility gains measured during comparison testing showed great promise for Strykers that could be retrofitted with this system in the future. Over a range of off-road bump courses, the MillenWorks MROADS Stryker was 40-60% faster than the stock vehicle at the same level of driver absorbed power; a measure of transmitted vibration. The MROADS Stryker’s best performance was a 72% increase in the vehicle’s 6-watt absorbed power speed, from 22 mph (stock) to 38 mph. Increases in vehicle platform stability were immediately obvious to drivers and bystanders. The system also showed marked improvements during aggressive on-road maneuvers like lane changes. The maximum lane change speed increased from 38 mph (stock) to over 50 mph with the MillenWorks MROADS system.