The vehicle longitudinal control algorithm is the core function of adaptive cruise system, whose main task to convert acceleration and deceleration requirements into driving braking commands so that can quickly accurately track desired acceleration. Traditional algorithms rely on accurate dynamic modeling or complex controller parameter calibrations. To overcome those difficulties, a based RBF-...

This paper deals with the vertical and longitudinal control of a mechanical system which interacts intermittently with the environment. The control approach is based on Controlled LimitCycle for performing the hopping motion, whereas a nonlinear energy based control law is used for longitudinal motion control. The study of this simple system permits a better comprehension of more complicated le...

We design a feedback control architecture for longitudinal flight of an aircraft. The multi-level architecture includes the flight control loop to govern the short term dynamics of the aircraft, and the autopilot to control the long term modes. Using H∞ performance and robustness criteria, the problem is cast as a non-convex and non-smooth optimization program. We present a non-convex bundle me...

In order to improve the safety and longitudinal stability of a vehicle equipped with standard ABS system, this paper, analyzes the basic principles of vehicles stability and proposes a control strategy based on fuzzy adaptive control which will adjust PID gain parameters, using genetic algorithm. A linear three-degree-of-freedom (DOF) vehicle model was set up in Simulink and the stability test ...

background: obesity and overweight among children is a major public health problem in developed and developing countries and has important health and economic implications. this longitudinal study aimed to assessing the prevalence trend of overweight and obesity in west azerbaijan in north west of iran. methods: this study was a longitudinal follow-up study and was conducted in school children ...

background: the aim of this study was to estimate the conversion rate from radiologically isolated syndrome (ris) to definite multiple sclerosis (ms). methods: during a mean (standard deviation [sd]) follow-up period of 17.4 (5.4) (range 8-29) months, 25 subjects with ris and without neurological symptom aged 22-45 year from a single-center have been examined for the occurrence of definite ms. ...

background: adolescent tobacco use remains a major public health priority to reduce the prevalence of tobacco use in community. the aim of this study was determining the association of the transitions in smoking stages with prevalence of cigarette smoking in the classes and schools in adolescents of tabriz city (northwest of iran). methods: fifty-six high schools were randomly selected, and 490...