scholarly journals Stability Coordinated Control of Distributed Drive Electric Vehicle Based on Condition Switching

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Zhao Jingbo ◽  
Chen Jie ◽  
Liu Chengye
Keyword(s):  
Electric Vehicle ◽  
Working Conditions ◽  
Control Strategies ◽  
The Body ◽  
Lateral Motion ◽  
Discrete Events ◽  
Attitude Tracking ◽  
Distributed Drive Electric Vehicle ◽  
Switching Controller ◽  
And Control

The distributed drive electric vehicle is a complex hybrid system including discrete events and continuous events. In order to coordinate the longitudinal and lateral motion of the distributed drive electric vehicle, a hierarchical control method was proposed. In the upper layer, the body attitude tracking controller based on sliding mode control algorithm was established to accurately analyze the driving expectation and to track the longitudinal speed, the lateral speed, and the yaw rate of the vehicle. In the lower layer, the switching controller based on the hybrid theory was established to improve the driving stability under various working conditions. The switching controller can switch between control strategies according to the working conditions. The joint simulation was carried out under various working conditions using Simulink and CarSim software. The results showed that the controller can coordinate the longitudinal and lateral motion of the vehicle well in linear acceleration and sinusoidal acceleration conditions and can strictly track the driving expectation and maintain the desired body posture. And another, the controller can be switched according to the working conditions and control strategies accurately and smoothly and can ensure stable driving in the constant speed single lane change condition. The controller can reveal the continuous behavior characteristics of the vehicle and reflect the characteristics of discrete events by coordinating the longitudinal and lateral motion of the vehicle. It improves the stability and control performance of the distributed drive electric vehicle under various working conditions.

scholarly journals Neoteric Fuzzy control stratagem and design of Chopper fed Multilevel Inverter for enhanced Voltage Output involving Plug-In Electric Vehicle (PEV) applications

Electronics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1092 ◽  
Author(s):  
Sunddararaj ◽  
Rangarajan ◽  
Gopalan
Keyword(s):  
Electric Vehicle ◽  
New Technologies ◽  
Control Strategies ◽  
Economic Benefits ◽  
Multilevel Inverter ◽  
Control Logic ◽  
Bidirectional Converters ◽  
Hybrid Controller ◽  
And Control ◽  
Novel Design

The utilization of plug-in electric vehicles (PEV) has started to garner more attention worldwide considering the environmental and economic benefits. This has led to the invention of new technologies and motifs associated with batteries, bidirectional converters and inverters for Electric Vehicle applications. In this paper, a novel design and control of chopper circuit is proposed and configured with the series and parallel connection of the power electronic based switches for two-way operation of the converter. The bidirectional action of the proposed converter makes it suitable for plug-in electric vehicle applications as the grid is becoming smarter. The DC–DC converter is further interfaced with the designed multilevel inverter (MLI). The reduced switches associated with the novel design of MLI have overcome the cons associated with the conventional inverters in terms of enhanced performance in the proposed design. Further, novel control strategies have been proposed for the DC–DC converter based on Proportional Integral (PI) and Fuzzy based control logic. For the first time, the performance of the entire system is evaluated based on the comparison of proposed PI, fuzzy, and hybrid controllers. New rules have been formulated for the Fuzzy based controllers that are associated with the Converter design. This has further facilitated the interface of bidirectional DC–DC converter with the proposed MLI for an enhanced output voltage. The results indicate that the proposed hybrid controller provides better performance in terms of voltage gain, ripple, efficiency and overall aspects of power quality that forms the crux for PEV applications. The novelty of the design and control of the overall topology has been manifested based on simulation using MATLAB/SIMULINK.

Analysis on Electronic Differential Control Strategies of Electric Vehicle

2012 ◽  
Vol 562-564 ◽  
pp. 1602-1605
Author(s):  
Cheng Qun Li ◽  
Cui Yu Zhou
Keyword(s):  
Detailed Analysis ◽  
Electric Current ◽  
Electric Vehicle ◽  
Control Strategies ◽  
Control Process ◽  
Control Torque ◽  
Control Scheme ◽  
Differential Control ◽  
And Control ◽  
The Relationship

Based on the relationship between the motor torque of each side and electric current when the electric vehicle turns, this article puts forward a control scheme of electronic differential which is used to regulate current and control torque, according to the micro electric vehicle with a double-wheel motor driven. In addition, the article makes detailed analysis for the electronic differential control process.

Palestinian refugee children: Violence in school and family

2018 ◽  
Vol 33 (4) ◽  
pp. 486-502 ◽  
Author(s):  
Marie Kortam
Keyword(s):  
Physical Violence ◽  
Control Strategies ◽  
The Body ◽  
Symbolic Violence ◽  
Refugee Children ◽  
Social Spaces ◽  
School Teachers ◽  
Palestinian Refugee ◽  
Learning Development ◽  
And Control

This article employs a Foucauldian perspective to examine how Palestinian refugee children are governed through dominance and control strategies in social spaces, such as school and family. Each of these institutions is dedicated to the control and regulation of the development of both the body and mind of Palestinian refugee children through regimes of discipline, learning, development, maturation and skill. Such institutions exert symbolic violence, domination and manipulation on their users, to the point that even physical violence – school teachers hitting students – is embodied by the staff of these institutions.

IMPROVING THE CRITERIA AND METHODS FOR ASSESSING THE STRAIN ON WORKERS IN MODERN TYPES OF WORK

2021 ◽  
Author(s):  
V.V. Serikov ◽  
◽  
O.I. Yushkova ◽  
A.V. Kapustina
Keyword(s):  
Functional State ◽  
Working Conditions ◽  
Statistical Processing ◽  
The Body ◽  
Labor Process ◽  
Labor Intensity ◽  
Mental Work ◽  
Neuromuscular Apparatus ◽  
The Central Nervous System ◽  
And Control

Abstract. Introduction. The relevance of the research topic is due to the need to develop and scientifically substantiate physiological criteria for assessing working conditions in difficult cases according to indicators of the functional state of the body (in accordance with the section "General hygienic assessment of working conditions" of Guideline R 2.2.2006-05). The aim of the work is to determine changes in the functional state of the body in workers of mental, visual-intense, physical activity on the basis of complex physiological and hygienic studies to substantiate quantitative physiological criteria for different classes of labor intensity. Materials and methods. Complex industrial physiological and hygienic studies included an assessment of the degree of labor intensity with the analysis of retrospective data, physiological studies of the central nervous system, visual analyzer, neuromuscular apparatus, cardiovascular system of mental workers (52 groups), visually stressful (32), physical labor ( 71 professional group). Statistical processing of the obtained data was carried out using the statistical software Statistika 10, Microsoft Excel 2010. Research results. It is shown that the depth and time of the onset of physiological changes depend on the degree of labor intensity, which makes it possible to calculate the percentage of decrease in functions, taking into account the intensity class of the labor process. The list of physiological criteria for confirming the class of working conditions is determined by the characteristics of labor activity, with mental work these are indicators of concentration of attention and the volume of working memory, with visually intense labor, the critical frequency of fusion of light flashes, with physical labor, muscle endurance and heart rate. Conclusions. Quantitative physiological criteria have been established for various types of labor activity, which provide a valid evidence-based assessment of the class of working conditions according to the characteristics of the intensity of the labor process and control of the levels of the functional state.

scholarly journals Integrated DYC and ASR Mixed Control of Distributed Drive Electric Vehicle Using Co-Simulation Methodology

2021 ◽  
Author(s):  
Xinwen Zhang ◽  
Qiang Li ◽  
Agyei Philip ◽  
Lu Zhao ◽  
Xeihui Wang ◽  
...  
Keyword(s):  
Electric Vehicle ◽  
Control Strategy ◽  
Control Strategies ◽  
Electronic Control Unit ◽  
Slip Rate ◽  
Switching Control ◽  
Mode Switching ◽  
Dual Mode ◽  
Mixed Control ◽  
Distributed Drive Electric Vehicle

Abstract The improvement of handling and stability performance of distributed drive electric vehicle (DDEV) is analyzed, visualized and designed by proposing and deploying the mixed control strategies in this paper including Direct Yaw Control (DYC), Anti-slip Regulation (ASR) and dual-mode switching control. The practicability and real time visualization of driving efficiency and timeliness of DDEV is achieved to reduce the margin of error for the desired torque value by employing the DYC strategy which uses fuzzy PID algorithm. Furthermore the ASR strategy which adopts the optimal slip rate algorithm to determine the requirement of desired torque value based on the different road conditions is used to reduce slip phenomenon effectively and to maintain handling control of DDEV. In response to different scenes especially conflict and coexistence between DYC and ASR, the dual-mode switching control strategy is applied to find more suitable slip rate range by using the root mean square error method (REME). Finally, co-simulation platform of ADAMS/Car and MATLAB/Simulink is built to simulate the mixed control strategies by integrating dual-mode switching control, DYC and ASR. The simulation results show that this strategy has a more significant control effect needed to meet the requirements of normal vehicle handling and stability. The mixed control strategy is adopted and downloaded into the electronic control unit of our student type formula vehicle called Flash V6 which was designed and developed by a team of students, the ZUST ATTACKER Team.

scholarly journals A Review on Model and Control of Electromagnetic Active Engine Mounts

2020 ◽  
Vol 2020 ◽  
pp. 1-20
Author(s):  
Henghai Zhang ◽  
Wenku Shi ◽  
Jun Ke ◽  
Guoyu Feng ◽  
Junlong Qu ◽  
...  
Keyword(s):  
Control Strategies ◽  
Element Model ◽  
Academic Community ◽  
The Body ◽  
Current Status ◽  
Experimental Modelling ◽  
Engine Mounts ◽  
Developmental Progress ◽  
Active Engine ◽  
And Control

The isolation of the body from engine vibration is the most challenging and disruptive vibrational problem. Active engine mounts (AEMs), especially electromagnetic AEMs, achieve a significant performance improvement in decreasing the wide frequency band vibration. Increasing research interest is necessary to provide the academic community with a guideline for electromagnetic AEMs. Therefore, the current review aims to comprehensively supplement the review of AEMs. The key reviews of electromagnetic AEMs focus on (1) general considerations of electromagnetic AEMs, (2) models, and (3) control strategies. This paper presents a review of the current status and developmental progress of AEMs. A theoretical model, a finite-element model, and the identification (or experimental modelling) of electromagnetic AEMs during the last 2 decades are then studied. Finally, control strategies, such as classical control, adaptive control, and two degree of freedom (2DOF) control, are discussed and compared. The main purpose of this paper is to meet the needs of researchers and engineers engaged in electromagnetic AEM analysis and control.

Analysis of Typical Driving Condition Test and Control Strategies Based on Toyota Prius

2014 ◽  
Vol 977 ◽  
pp. 321-325
Author(s):  
Yuan Tao Sun ◽  
Jin Zhu Zhang ◽  
Yun Long Wang ◽  
De Hui Fan ◽  
Rong Fu Zhu
Keyword(s):  
Working Conditions ◽  
Hybrid System ◽  
Electric Motor ◽  
Hybrid Electric Vehicle ◽  
Control Strategies ◽  
Power Battery ◽  
Driving Condition ◽  
Testing Instruments ◽  
And Control ◽  
Toyota Prius

To study control strategies of combined hybrid electric vehicle, the paper does some working conditions Toyota Prius car such as starting, acceleration and uniform speed using testing instruments. The relation curves between speed of rotation, output moment of torque, speed of rotation of engine and time were obtained when power battery was in high SOC condition and low SOC condition about generator and electric motor. This relation curves can be useful to analyze control strategies of the combined hybrid system in some different conditions.

Perbandingan Efek Suplementasi Tablet Tambah Darah Dengan Dan Tanpa Vitamin C Terhadap Kadar Hemoglobin Pada Ibu Hamil Dengan Usiakehamilan 16-32 Minggu Di Desa Keniten Kecamatan Mojo Kabupaten Kediri

2017 ◽  
Vol 3 (1) ◽  
pp. 76
Author(s):  
Siti Asiyah ◽  
Dwi Estuning Rahayu ◽  
Wiranti Dwi Novita Isnaeni
Keyword(s):  
Treatment Group ◽  
Vitamin C ◽  
Gestational Age ◽  
Group Treatment ◽  
Sampling Technique ◽  
Hemoglobin Level ◽  
The Body ◽  
Control Group ◽  
Fetal Organ ◽  
And Control

The needed of Iron Tablet in pregnancy was increase than mother who not pregnant.  That  cause of  high metabolism at the pregnancy for formed of  fetal organ and energy. One of effort for prevent anemia in mother pregnant with giving the Iron tablet and vitamin c. The reason of  this research in 4 June – 11 July 2014 is for compare the effect of  iron tablet suplementation with and without vitamin C toward Hemoglobin level in mother pregnant With Gestational Age Of 16-32 Weeks In Desa Keniten Kecamatan Mojo Kabupaten Kediri. This research method using comparative analytical.  Research design type of Quasy Eksperiment that have treatment group and control group. Treatment group will giving by Iron tablet and 100 mg vitamin C, and control group just giving by iron tablet during 21 days. Population in this research are all of mother pregnant with Gestational Age Of 16-32 Weeks with Sampling technique is  cluster random sampling is 29 mother pregnant. Comparison analysis of  iron tablet suplementation effect with and without vitamin C toward Hemoglobin level in mother pregnant With Gestational Age Of 16-32 Weeks, data analysis using Mann Whitney U-test and the calculated U value (44,5) less than U-table (51). So there was difference of iron tablet suplementation effect with and without vitamin C toward Hemoglobin level in mother pregnant With Gestational Age Of 16-32 Weeks Therefore, the addition of vitamin C on iron intake is needed to increase the uptake of iron tablets. When the amount of iron uptake increases, the reserves of iron in the body will also increase, so as to prevent anemia in pregnant women; Keywords : Iron Tablet (Fe), Vitamin C, Hemoglobin level, Mother Pregnant

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