دانلود مقاله ترجمه شده سرعت طولی و کشش وسایل نقلیه با کنترل هیبریدی – مجله IEEE

• فهرست مطالب:

 چکیده
۱ مقدمه
۲ مدل خودروی طولی
۳ کنترل هیبریدی
الف مدل سازی ترکیبی و بیان مشکلات
ب طراحی کنترل کننده
ج بهبود کنترلر
۴ شبیه سازی
۵ نتیجه گیری

• بخشی از ترجمه:

در این مقاله یک روش کنترل ترکیبی برای سرعت طولی و کنترل کششی از یک وسیله نقلیه با محدودیت لغزش چرخ پیشنهاد شد. مدل خودرو طولی با لغزش چرخ در نظر گرفته شده است که برای کنترل کششی بسیار مهم است. حالتهای تعریف شده توسط شرایط داده می شود و مدل خودرو به عنوان یک سیستم است که متشکل از زیر سیستم ها می باشد. کنترل زیر سیستم خاص محلی در زمینه چارچوب سیستم هیبریدی طراحی شده است .روشهای کنترل پیشنهادی ساده و کارآمد آن به صورت یک الگوریتم ساده و شهودی خوب بود که عملکردی برای تطابق با هدف کنترل را فراهم می کند. امکان سنجی از روش ارائه شده توسط شبیه سازی عددی، تایید شده است.

• بخشی از مقاله انگلیسی:

INTRODUCTION With the increase of the number of vehicles, driving safety has been one major concern in the community, automotive industry, and control engineering. There have been considerable efforts to improve driving safety, along with efforts to improve the performance of vehicles (see [6], [ 1 I] and references therein). Among the situations. that threaten driving safety, skidding is a major dangerous situation as drivers may encounter, for example, ice patches on the road in wintertime or early springtime and these patches can cause p -split [I]. Vehicle Faction control has received considerable attention since it can provide the driving safety in skidding situations as well as improve vehicle ‘motion in longitudinal and lateral directions [8]. In vehicle traction control, the wheel slip between the tire and ground is an important variable and considered as a source of generating the tractive friction force to accelerate or decelerate the vehicle. This slip is considered as a key to anti-skidding. Many results on identifying the relationship between the wheel slip and the tractive friction force, however, indicate that its nonlinearity and uncertainties make vehicle traction control a challenging problem. Tai and Tomizuka [I31 proposed a vehicle speed control method using traction and brake control. The method is designed based on backstepping. which helps construct a candidate Lyapunov function to guarantee stability. Kachroo et al. [7] proposed a fuzzy supervisory control method for a vehicle speed and traction control system. They establish a vehicle model for traction control, which combines the wheel and vehicle dynamics, and use wheel slip characteristics to distinguish the vehicle state (whether the state is in accelerating or in braking) for applying a particular control algorithm. De Koker et al. [SI proposed, a fuzzy control algorithm for traction control and showed that ifthe wheel slip is kept around an optimal value, the vehicle will be free for Suk-Kyo Hong Division of Electronics Engineering, Ajou University San-5, Woncbeon-Dong, Palda-Gu Suwon, Kyongki-Do 442-749, Korea skhong@. ajou.ac.kr skidding. All the methods described above use nonlinear methods that guarantee stability, hut the complexity in the algorithms requires much computing power and even makes it questionable to implement the algorithm since vehicles in market have embedded computer systems and many of these systems do not have enough computing power. Therefore, this problem calls for a simple and efficient method for vehicle traction control. In this paper, a hybrid system approach to longitudinal speed and traction control of a vehicle is presented. This work was motivated by the fact that hybrid system frameworks have been reported to provide a means of simplifying complex systems [2], [IO]. For example, one can obtain a simplified (linearized) system for a nonlinear system and achieve a performance comparable to that of nonlinear control, using hybrid system frameworks. Recently, hybrid system frameworks have been comprehensively investigated [Z], [4], [IO], [12]. With the help of wide spread use of computers for decision and control, hybrid systems can he seen in various control areas and have become an important paradigm in control engineering. Switched systems are a class of hybrid systems and have attracted much interest in control community since many systems in control applications can be seen as switched systems. As mentioned above, the main reason that switched systems have an increased attention by control community is that switched systems provide a means to avoid dealing directly with a complex system. For example, one can work with a set of simpler systems (e.g., linear systems) instead of working with a complex system (e.g., nonlinear system) and select a particular system by switching in term of operating conditions [Z]. The paper is organized as follows. Section I1 describes a vehicle longitudinal model for traction control. In section 111, the obtained model is recast as a switched system model which consists of local subsystems corresponding to the operating modes. Then the controller for this switched model is proposed, which incorporates a decision-making logic to select a particular subsystem in terms of switching conditions. Simulation results are presented in section IV and conclusions are drawn in section V.