A Grey System Modeling Approach for Sliding-Mode Control of Antilock Braking System

Vision-based active safety system for automatic stopping

“…Examples are: model based adaptive control (Su, Chang, & Chen, 2006) and sliding modes control (Kayacan, Oniz, & Kaynak, 2009), fuzzy control (Mauer, 1995), neuro-fuzzy control (Wang et al, 2009), genetic neural control (Lee & Zak, 2001). Fuzzy logic in particular seems to be an interesting choice because of its good compromise between tuning simplicity -contrarily to neuro-fuzzy and genetic neural control -and robustness to disturbances and parameter variations -it is independent of complex vehicle and brake models.…”

Aircraft Anti-Skid Brake Control Based on High-Speed on-off Valve

“…Assuming that the hydraulic brake pipe is the rigid pipe, in which the oil is laminar flow, the import and export of oil pipeline dynamic space can be expressed as two-port model in the Laplace space: (10) For the model is infinite dimensional linear systems, we can accurately analysis line frequency characteristic. In the expression, the linear characteristic impedance Z(s) and propagator Г(s) is respectively determined by the oil viscosity and pipe size: (11) ρ is the oil density; c is the wave velocity in the oil; r is the radius of inner pipeline; L is the pipe length;J 0 and J 1 are zero order and first order of the first kind Bessel function respectively; u is the oil dynamic viscosity.…”

“…High-speed on-off valve as a new type of digital electro-hydraulic conversion element, by means of controlling electromagnet suction, makes the valve core movement at a high speed in forward and reverse direction, so as to realize the function of fluid flow in the valve inlet on-off alternately. Because of simple structure, convenient control, fast response speed, strong ability to resist pollution and so on, it has been widely used in vehicle electronic control system [10,11]. Its performance is usually described by the time of on and off, and there are only two limit work states on and off, it can convert digital signal directly into the fluid pulse signal, easily to realize the combination of computer control technology and hydraulic fluid technology [12].…”

Dual Mode Vehicle with In-Wheel Motor: Regenerative Braking Optimization

“…To maintain the stability of the vehicle, the objective is to keep the friction on the rear wheels higher than on the front wheels: (12) From this condition and Equations (10) and (11), the longitudinal forces applicable on each axle are:…”