The loop shaping scheme is applied to H∞-control of time-varying and periodic systems. The solution is given in a unified mixed continuous/discrete-time compact form. This implies that pure continuous-time and discrete-time applications simply appear as two different interpretations of the given results. Among the applications are also hybrid systems with time-driven discrete events. For period...

In our problem, a company can use both a remanufacturing facility to sell returned products and a classical production facility to satisfy the demand that cannot be fulfilled by returns. Such systems are called hybrid production/remanufacturing systems and have received a growing attention in recent years. To perform production and remanufacturing, a company can use dedicated or shared resource...

The problem of synthesizing feedback controllers that perform sensing and actuation actions on non–uniform and uncertain discrete time domains is considered. This class of problems is relevant to many application domains. For instance, in engine control a heterogenous and, to some extent, uncertain event–driven time domain is due to the behavior of the 4-stroke internal combustion engine, with ...

Distinguishability takes a crucial rule in studying observability of hybrid system such as switched system. Recently, for two linear systems, Lou and Si gave a condition not only necessary but also sufficient to the distinguishability of linear systems. However, the condition is not easy enough to verify. This paper will give a new equivalent condition which is relatively easy to verify.

In the present paper, the idea of braking energy regeneration and reusing that energy during acceleration for a refuse truck is comprehended. According to their driving cycle, the refuse trucks have a good potential for braking energy regeneration. On the other hand, hydraulic hybrid is a powertrain with high power density which is appropriate for energy regeneration. In the primary stage of th...

Hybrid systems combine continuous and discrete behavior. Hybrid Automata are a powerful formalism for the modeling and verification of such systems. A common problem in hybrid system verification is the good parameters problem, which consists in identifying a subset of parameters which guarantee a certain behavior of a system. Recently, a method has been presented for attacking this problem for...

this paper presents a design procedure for an adaptive power management control strategy based on a driving cycle recognition algorithm. the design goal of the control strategy is to minimize fuel consumption and engine-out nox, hc and co emissions on a set of diversified driving schedules. seven facility-specific drive cycles are considered to represent different driving scenarios. for each fa...

Dynamic modeling and control of dc-dc series resonant converter (SRC) especially when operating in discontinuous conduction mode (DCM) is still a challenge in power electronics. Due to semiconductors switching, SRC is naturally represented as a switched linear system, a class of hybrid systems. Nevertheless, the hybrid nature of the SRC is commonly neglected and it is modeled as a purely contin...