The Active Suspension is a bench-scale quarter-car model ideal to introduce principles of active control. It offers senior mechanical engineering students unique hands-on learning relevant to today’s automotive industry. Students learn how to:
In addition to teaching active control concepts, the Active Suspension can be also used for research in various areas, including vibration isolation and neural networks.
How It Works
This Active Suspension system consists of three masses, or plates. Each mass slides along stainless steel shafts using linear bearings and is supported by a set of springs. The upper mass (blue plate) represents the vehicle body supported above the suspension, also known as the sprung mass. The middle mass (red plate) corresponds to one of the vehicle’s tires, or the unsprung mass. The bottom mass (silver plate) by moving vertically simulates the road surface.
The upper mass is connected to a high-quality DC motor through a capstan to emulate an active suspension system that can dynamically compensate for the motions introduced by the road. The lower plate is driven by a powerful DC motor connected to a lead screw and cable transmission system. It is used to simulate different road profiles.
Students can tune the supplied controller or design their own controllers to optimize the various suspension performance parameters, including:
The Active Suspension comes with the Quanser-developed courseware. A comprehensive Laboratory Guide, together with quick start resources, a User Manual, pre-designed controllers and a system model allow you to get your lab running faster, saving months of time typically required to develop lab materials.
Topics included in the Quanser-developed courseware:
To set up your Active Suspension workstation, you need additional components. Quanser engineers recommend:
¹ alternatively, you can use QPIDe or any equivalent NI DAQ device supported by QUARC
² alternatively, you can use AMPAQ-L4 amplifier
³ NI cRIO-9074, or NI cRIO-9024 with cRIO-9113 or cRIO-9114 chassis
4 NI DAQ device must be supported by Quanser RCP toolkit. Alternatively, you can use Quanser Q8-USB, or QPIDe