An inertial delay observer-based sliding mode control for active suspension systems

Abstract

In this paper, an active suspension system based on an inertial delay observer combined with sliding mode control is proposed for a quarter-car model. The inertial delay observer estimates the states and the uncertainties and disturbances of a system simultaneously. It is an extension of the inertial delay control which estimates the uncertainties of a system but needs the measurement of all states. The proposed scheme needs only the sprung mass position sensor for its implementation. The overall stability of the system is proved. The scheme is validated by simulation and by experimentation on a laboratory set-up. The results obtained with the proposed scheme are compared with those obtained with a passive suspension scheme, an linear quadratic Gaussian observer-based scheme and an inertial delay control-based scheme.

Experimental investigations on multitudinal sliding mode controller-based interleaved shunt APF to mitigate shoot-through and PQ problems under distorted supply voltage conditions

“…Multitudinal sliding mode controller is controlled the mismatched uncertainties using inertial delay control (IDC) . The IDC is used to estimate the number of mismatched disturbances/uncertainties.…”

“…Multitudinal sliding mode controller is controlled the mismatched uncertainties using inertial delay control (IDC). 26 The IDC is used to estimate the number of mismatched disturbances/uncertainties. Moreover, it allows the sliding controller to design in such a way that it reduces the relative degree by the system state as artificial input.…”

“…The MSMC uses multiple surfaces for mismatched system disturbances/uncertainties. Moreover, it uses to control the mismatched disturbances/uncertainties using inertial delay control (IDC) . Various PWM techniques are available in the literature, such as space vector modulation (SVM), sinusoidal PWM, triangular current controller, and hysteresis current controller.…”

“…Moreover, it uses to control the mismatched disturbances/uncertainties using inertial delay control (IDC). 26 Various PWM techniques are available in the literature, such as space vector modulation (SVM), sinusoidal PWM, triangular current controller, and hysteresis current controller. The hysteresis controller has been adopted for this topology to generate switching pulses for the inverter switches because of its simple implementation, fast response, and good accuracy.…”

Fuzzy Sliding Mode Control for Active Suspension System with Proportional Differential Sliding Mode Observer

“…Active suspension can solve the problem of driving comfort and control stability under different working conditions that cannot be solved by traditional passive suspension. In recent years, some new control strategies have been put forward , so research into the active suspension system combining with new control strategies has become a hot topic in recent years .…”