On the basis of sliding mode control, a new cascade sliding-mode controller (CSMC) for a class of large-scale underactuated systems is proposed. The large-scale underactuated systems include several subsystems. Firstl...
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A new stabile sliding mode control method for a class of underactuated mechanical systems is proposed in this paper. The controller has the double-layer structure. Firstly, the system states are divided into several d...
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Driving cycle simulation of the heavy duty vehicle powertrain systems is presented as a methodological approach for evaluation of the engine operating points used for emission testing. This approach employs a backward...
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The valve-controlled motor eletrohydraulic proportional servo system driving static load torque has severe time-varying deadzone and gain nonlinearities in the presence of the load torque variations. An experimental c...
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In this paper, we investigate one-class and clustering problems by using statistical learning theory. To establish a universal framework, a unsupervised learning problem with predefined threshold η is formally descri...
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This paper proposes a rapid and accurate evaluation scheme for cycle counts of a pipelined processor using evaluation reuse technique. Since exploration of an optimal processor is a time-consuming task due to large de...
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ISBN:
(纸本)1595930582
This paper proposes a rapid and accurate evaluation scheme for cycle counts of a pipelined processor using evaluation reuse technique. Since exploration of an optimal processor is a time-consuming task due to large design space, fast evaluation methodology for an architecture is crucial. We introduce the performance simulation model which can evaluate the performance without considering the functional correctness. This model has an FSM-like form and can afford to take all hazard types of pipelined architectures into consideration. The proposed approach is based on the property that an application program, especially multimedia application, has many iterative loops in general. This property invokes many iterative operations in the simulation. Evaluation reuse scheme can alleviate redundantly iterative operations of conventional simulators in the loop. A performance simulator for the pipeline architecture has been developed through which greater speedup has been made compared with other approaches in the evaluation of cycle counts.
Rough groups and rough rings have been investigated by Biswas & Nanda [Bull. Polish Acad. Sci. Math. 42 (1994) 251-254], Kuroki and Wang [Inform. Sci. 90 (1996) 203-220] and Dawaz [Inform. Sci. 164 (2004) 147-163]...
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In animal experiments, the observed orientation preference and ocular dominance columns in the visual cortex of the brain show various pattern types. Here, we show that the different visual map formations in various s...
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In animal experiments, the observed orientation preference and ocular dominance columns in the visual cortex of the brain show various pattern types. Here, we show that the different visual map formations in various species are due to the crossover behavior in anisotropic systems composed of orientational and scalar components such as easy-plane Heisenberg models. We predict the transition boundary between different pattern types with the anisotropy as a main bifurcation parameter, which is consistent with experimental observations.
A new stable sliding mode control method for a class of underactuated mechanical systems is proposed in this paper. The controller has the double-layer structure. Firstly, the system states are divided into several di...
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A new stable sliding mode control method for a class of underactuated mechanical systems is proposed in this paper. The controller has the double-layer structure. Firstly, the system states are divided into several different subsystems. For each of these subsystems, a first-layer sliding plane is constructed. From these first-layer sliding planes, then we further construct a second-layer sliding plane. By analyzing the features of the mathematical model of the underactuated mechanical systems, we derive the sliding-mode control law and indicate the ranges of the controller parameters. Using Lyapunov law, the paper proves the stability of all the sliding planes theoretically. The simulation results show the validity of this method for this class of underactuated mechanical systems.
On the basis of sliding mode control, a new cascade sliding-mode controller (CSMC) for a class of large-scale underactuated systems is proposed. The large-scale underactuated systems include several subsystems. Firstl...
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On the basis of sliding mode control, a new cascade sliding-mode controller (CSMC) for a class of large-scale underactuated systems is proposed. The large-scale underactuated systems include several subsystems. Firstly, two states are chosen to construct the first-layer sliding surface. Secondly, the first-layer sliding surface and one of the left states are used to construct the second-layer sliding surface. This process continues till the last-layer sliding surface is obtained. By theoretical analysis, the cascade sliding-mode controller is proved to be globally stable in the sense that all signals involved are bounded. The simulation results show the validity of this method.
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