Semi-Active Damping Control of Suspension Systems for Specified Operational Response Mode

Analysis of powertrain motions given a combination of active and passive isolators

“…The literature on multi-degree-of-freedom active isolation systems is sparse. For example, Gardonio, Elliott and Pinnington 13 , Kim and Lee 14 , and Royston and Singh 15 have limited their analyses to 3-DOF systems (e.g. transverse-axial-pitch motions or pitchroll-bounce motions).…”

“…Also, prior researchers have attempted to minimize the forces transmitted into the rigid or compliant foundations without considering the multi-dimentional motion control and coupling issues. In particular, Gardonio, Elliot and Pinnington 13 and Kim and Lee 14 have suggested that passive and active mount parameters should be properly selected prior to the isolation control problem, especially at the lower frequencies (say up to 50 Hz). This article extends the prior multi-degree-of-freedom active isolators work [13][14][15] by focusing on the eigensolutions, coupling dynamics and motion control issues.…”

“…In particular, Gardonio, Elliot and Pinnington 13 and Kim and Lee 14 have suggested that passive and active mount parameters should be properly selected prior to the isolation control problem, especially at the lower frequencies (say up to 50 Hz). This article extends the prior multi-degree-of-freedom active isolators work [13][14][15] by focusing on the eigensolutions, coupling dynamics and motion control issues. Figure 1 illustrates a typical 6-DOF rigid body powertrain mounting system with linear time invariant active and passive mount models that are depicted in Fig.…”

Research of Solenoid Valve CDC Damper Performance Data Compression and Fusion with Active Suspension Control Strategy

“…Although the model is complex, but for suspension control unit, Suspension deform velocity and desirable damping force is available [2]. Calculating CDC damper control current is simple.…”

Generalisation and optimisation of semi-active, on–off switching controllers for single degree-of-freedom systems

“…This is achieved by either altering the properties of the damping fluid, as is the case for electro and magneto-rheological dampers [1], or by actuating mechanical components of the damper, an example of which is a variable orifice damper. Semi-active damping, as a method of vibration isolation, has been applied to many mechanical and civil engineering systems, see for example [2,3,4,5,6,7] and references therein. It has been demonstrated to provide considerably improved performance compared to vibration isolation through passive damping alone.…”