The main problem of vehicle vibration comes from road roughness. An active suspension systempossesses the ability to reduce acceleration of sprung mass continuously as well as to minimizesuspension deflection, which results in improvement of tire grip with the road surface. Thus, braketraction control and vehicle maneuverability can be improved consider ably .This study developeda new active su...

Summary. The linear active disturbance rejection control (LADRC) is mainly applied for tracking a step signal, and it inadequate to realize satisfactory performance in the of single-phase inverter whose reference signal sinusoidal. In this paper, an improved voltage strategy based on compound synchronous frame proportional-integral (SRFPI) LADRC proposed. SRFPI remain relatively independent wit...

This paper demonstrates a GPS receiver research platform. It can generate digital Immediate Frequency (IF) GPS signal and some signal synchronize functions on high dynamic and weak signal environment. It is based on a mathematical signal model which expresses the digitized IF GPS signal as a function of various errors during propagation. The simulator is able to simulate more than 12 GPS satell...

Fast and accurate transient response is the main requirement in electric machine position control. Conventional cascade control structure has sluggish response due to the limitation of inner control loop bandwidth. In this paper, in order to decrease the Permanent Magnet Synchronous Motor (PMSM) transient response time it can be used reference model using feed-forward signals. In this structure...

Advanced controllers are an excellent choice for the trajectory tracking problem of Wheeled Mobile Robots (WMRs). However, these pose a challenge to hardware structure WMRs due controller's complex and large number calculations needed. In that context, designing controller with simple small computations but good real-time performance is necessary in order improve accuracy without requiring high...

This paper presents an extension of the L1 adaptive output feedback controller to systems of unknown relative degree in the presence of time-varying uncertainties without restricting the rate of their variation. As compared to earlier results in this direction, a new piece-wise continuous adaptive law is introduced along with the low-pass filtered control signal that allows for achieving arbitr...