An anti-slip control strategy with modifying target and torque reallocation for heavy in-wheel motor vehicle

2021 ◽  
pp. 095440702110630
Author(s):  
Yuan Wang ◽  
Liangxin Yuan ◽  
Hao Chen ◽  
Peng Du ◽  
Xiaomin Lian
Keyword(s):  
Control Strategy ◽  
Rotational Speed ◽  
Motor Vehicle ◽  
Tracking Error ◽  
Transition Process ◽  
Motor Vehicles ◽  
Integral Control ◽  
Slip Control ◽  
Current Period ◽  
Expected Performance

In-wheel motors are used in heavy vehicles such as buses and trucks to improve efficiency and compactness, the safety of which is particularly important. Anti-slip control is applied to road vehicles to improve the active safety performance, and it is necessary for heavy in-wheel motor vehicles. However, the experiment results in this study show that the response delay of motors on the heavy vehicle is larger than that of the passenger car, and the vehicle mass often changes, which brings drawbacks to the rapidity and stability of its dynamics control. For these problems, an improved Proportional-Derivative Control with a modifying desired wheel rotational speed is proposed for the slip regulation. The modifying control target is intended to mitigate steady tracking error, the role of which is similar to the traditional Integral Control. The desired wheel rotational speed is modified through the response in the current period, and then is set as the new target in the next period. Because the anti-slip control of driving wheels on each side is independent, the torque reallocation strategy is introduced to coordinate with the yaw control and take the yaw dynamics into account, which therefore improves the lateral stability. To avoid the excessive driving torque increment causing the slipping phenomenon again, after the anti-slip control finishing, a transition process is applied. Finally, simulations and real vehicle experiments are conducted to verify the effectiveness and flexibility of the control algorithm, and the results indicate that the control strategy has an expected performance.

Complex Solution of Ecological and Economic Problems of Traffic Jams

2019 ◽  
pp. 6-15
Author(s):  
Oleksandr M. Matsenko ◽  
Yaroslav S. Kovalev ◽  
Olena M. Tkachenko ◽  
Yaroslava V. Chorna
Keyword(s):  
Traffic Control ◽  
Motor Vehicle ◽  
Motor Vehicles ◽  
Water Runoff ◽  
Negative Consequences ◽  
Traffic Lights ◽  
Economic Problems ◽  
Traffic Jams ◽  
Economic Sphere ◽  
Flows Over Time

The article explores the congestion level in traffic of motor vehicles and its negative environmental and economic consequences in case of Kiev. The amount of pollution from traffic jams in Kiev and the number of vehicles which got into them in 2009-2018 is analyzed. The loss of earnings on the side of automobile owners from their standby are calculated with corresponding quantitative expressions found and described. For the course of the research, the methods of system-structural and comparative analysis were used for analyzing the environmental and economic problems of modern automobile systems; methods of formal logical analysis were used for substantiating the innovative infrastructure of transport routes. Separately economic and statistical methods were used in the study for trends development, structure analysis, and estimation of the influence of road congestion on the environmental and economic sphere. Pearson test has indicated a close relationship between the number of cars in Kiev and the number of values from traffic jams in environmental and economic sphere. Solutions to this problem are offered in forms of automated traffic control systems, improvisation of organizational and technical methods for the distribution of traffic flows over time, namely reverse traffic, road junctions, smart traffic lights, road extension, and the transition to alternative modes of transport. In all countries of the world there are new research methods that affect pollutants from motor vehicles. It is proved that they are forced by the recipients. In addition, landscaping can improve landscape design, reduce greenhouse gas emissions, surface water runoff and noise pollution. In this regard the policy implication of the research are aimed to eliminate the negative consequences from the use of vehicles during traffic jams, and the necessary number of trees for planting in Kiev is calculated. Key words: motor transport, congestion, traffic jam, motor vehicle, greening, compensation effect, lost profits, losses.

scholarly journals Control Strategy of Mode Transition with Engine Start in a Plug-in Hybrid Electric Bus

Energies ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 2989 ◽  
Author(s):  
Yang ◽  
Zhang ◽  
Zhang ◽  
Tian ◽  
Hu
Keyword(s):  
Control Strategy ◽  
Transition Process ◽  
Structural Features ◽  
Driving Performance ◽  
The State ◽  
Switching Process ◽  
Mode Switching ◽  
Mode Transition ◽  
Power Sources ◽  
Hybrid Electric

Torque coordinated control of the relevant power sources has an important impact on the vehicle dynamics and driving performance during the mode transition of the hybrid electric vehicles(HEVs). Considering the dynamic impact problem caused by mode transition, this paper, based upon the structural features of axially paralleled hybrid power system, introduces the bumpless mode switching control theory to analyze multi-mode transition. Firstly, the state transition process is abstracted as the state space transition problem of hybrid system. Secondly the mode transition is divided into four sub-states, and the state model of each sub-state is established. Thirdly, taking the cost functions as the optimization objective, the state switching process is solved, and the control vectors of each switching process are obtained. Simulation and experimental results show that the proposed control strategy can effectively suppress torque fluctuation, avoid longitudinal acceleration impact, and improve driving performance.

Auditory Icons as Impending Collision System Warning Signals in Commercial Motor Vehicles

1998 ◽  
Vol 42 (15) ◽  
pp. 1127-1131 ◽  
Author(s):  
Steven M. Belz ◽  
Gary S. Robinson ◽  
John G. Casali
Keyword(s):  
Motor Vehicle ◽  
Visual Display ◽  
Motor Vehicles ◽  
Collision System ◽  
Collision Warning ◽  
Multiple Modalities ◽  
Driver Performance ◽  
Driving Task ◽  
Side Collision ◽  
Simulated Driving Task

This simulator-based study examined the use of conventional auditory warnings (tonal, non-verbal sounds) and auditory icons (representational, non-verbal sounds), alone and in combination with a dash-mounted visual display to warn commercial motor vehicle operators of impending front-to-rear and side collision situations. Driver performance was measured in the simulated driving task via brake response time in the front-to-rear collision scenarios and via a count of accident occurrence in the side collision scenarios. For both front-to-rear and side collision scenarios, auditory icons elicited significantly improved driver performance over conventional auditory warnings. Driver performance improved when collision warning information was presented through multiple modalities.

Research on Anti-Slip Differential Control for Two-Motor Independent Driven Vehicle

2013 ◽  
Vol 330 ◽  
pp. 615-618
Author(s):  
Cheng Lin ◽  
Zhi Feng Xu
Keyword(s):  
Control Strategy ◽  
Differential Effect ◽  
Differential Problem ◽  
Slip Control ◽  
Mechanical Connection ◽  
Simulation Results ◽  
Differential Control ◽  
Driving Torque ◽  
Self Adaptive

There is no mechanical connection between two driving motors of two-motor independent driven vehicle. In order to solve target vehicles differential problem, this paper has proposed self-adaptive differential control strategy, and based on that, has proposed anti-slip control strategy through limiting the motor driving torque. Then, the anti-slip differential effect has been tested by simulation. The simulation results have proved that good anti-slip differential effect can be realized by using the anti-slip differential control strategy proposed by this paper.

On the spread of ultrafine particulate matter: A mathematical model for motor vehicle emissions and their effects as an asthma trigger

2021 ◽  
Author(s):  
Michelle N. Rosado-Pérez ◽  
Karen Ríos-Soto
Keyword(s):  
Mathematical Model ◽  
Ultrafine Particles ◽  
Motor Vehicle ◽  
Traveling Wave Solutions ◽  
Reaction Diffusion ◽  
Ambient Air ◽  
Air Pollutant ◽  
Pollutant Emissions ◽  
Motor Vehicles ◽  
Diffusion Type

Asthma is a respiratory disease that affects the lungs, with a prevalence of 339.4 million people worldwide [G. Marks, N. Pearce, D. Strachan, I. Asher and P. Ellwood, The Global Asthma Report 2018, globalasthmareport.org (2018)]. Many factors contribute to the high prevalence of asthma, but with the rise of the industrial age, air pollutants have become one of the main Ultrafine particles (UFPs), which are a type of air pollutant that can affect asthmatics the most. These UFPs originate primarily from the combustion of motor vehicles [P. Solomon, Ultrafine particles in ambient air. EM: Air and Waste Management Association’s Magazine for Environmental Managers (2012)] and although in certain places some regulations to control their emission have been implemented they might not be enough. In this work, a mathematical model of reaction–diffusion type is constructed to study how UFPs grow and disperse in the environment and in turn how they affect an asthmatic population. Part of our focus is on the existence of traveling wave solutions and their minimum asymptotic speed of pollutant propagation [Formula: see text]. Through the analysis of the model it was possible to identify the necessary threshold conditions to control the pollutant emissions and consequently reduce the asthma episodes in the population. Analytical and numerical results from this work prove how harmful the UFEs are for the asthmatic population and how they can exacerbate their asthma episodes.

The Performance Comparison and Benefit Analysis of Speed Control System of Mine Motor Vehicle

2012 ◽  
Vol 562-564 ◽  
pp. 1058-1062
Author(s):  
Xi Zhang ◽  
Wen Chao Chen ◽  
Jie Yang ◽  
Liu Hu
Keyword(s):  
Control System ◽  
Coal Mine ◽  
Motor Vehicle ◽  
Speed Control ◽  
Dc Motor ◽  
Performance Comparison ◽  
Motor Vehicles ◽  
Motor Speed ◽  
Speed Control System ◽  
Dc Motor Drives

The DC motor has good characteristics of large starting torque and good traction and strong overload capacity, traditional battery motor vehicle often adopts DC motor drives as driving system and uses the series resistance to adjust speed. However, in actual coal production, since motor vehicles are often placed in wet, explosive and dusty environment, the speed control system of motor vehicle has strict proof and moisture requirements, however, the inherent characteristics of the DC motor make it a serious shortcoming in the coal mine production, there is an urgent need to improve the structure to meet today's actual demand for coal mine automated production. This article is in this context, to compare the DC motor speed control system with AC speed control system of the mine car, discussing today's mainstream technical programs of AC speed control system, focus on the analysis of the great differences over performance and economic efficiency of the speed control system of mine motor vehicle after adopting AC speed control system.

An Analysis of Pro-Environmental Attributes towards Adolescents in Penang Using Extended Theory of Planned Behaviour

2015 ◽  
Vol 802 ◽  
pp. 419-424
Author(s):  
Nur Khairiyah Basri ◽  
Nur Sabahiah Abdul Sukor ◽  
Sitti Asmah binti Hassan
Keyword(s):  
Moral Obligation ◽  
Theory Of Planned Behaviour ◽  
Motor Vehicle ◽  
Travel Behaviour ◽  
Motor Vehicles ◽  
Environmental Friendly ◽  
High Dependency ◽  
Environmental Attributes ◽  
Transportation Sector ◽  
The Individual

The energy consumption in transportation sector was mostly created by the individual likeness to use private motor vehicle. High dependency on private motor vehicles has contributed not only to the traffic problem but also accounted to carbon emission. This study aims to investigate the psychological factors that influencing the adolescents’ intention to be more pro-environmental. This study found that the behavioural intention was significantly influenced by the adolescents’ awareness towards consequences, attitude towards environment and public transport, the sentiment of moral obligation to change, and the perceived possibilities or difficulty to practice environmental friendly travel behaviour.

scholarly journals Algoritma K-Means Clustering dalam Mengklasifikasi Data Daerah Rawan Tindak Kriminalitas (Polres Kepulauan Mentawai)

2021 ◽  
pp. 243-248
Author(s):  
Yoni Aswan ◽  
Sarjon Defit ◽  
Gunadi Widi Nurcahyo
Keyword(s):  
Data Clustering ◽  
Clustering Algorithm ◽  
Motor Vehicle ◽  
Motor Vehicles ◽  
Hierarchical Data ◽  
Motor Vehicle Theft ◽  
Vehicle Theft ◽  
Mentawai Islands ◽  
Or Groups ◽  
Different Characteristics

Crime is all kinds of actions and actions that are economically and psychologically harmful that violate the laws in force in the State of Indonesia as well as social and religious norms. Ordinary criminal acts affect the security of the community and threaten their inner and outer peace. The research location is the Mentawai Islands Police, which is an agency that can provide security and protection for the community, especially those in the Mentawai Islands Regency. The problem is that it is difficult for the Mentawai Islands Police to classify areas that are prone to crime in the most vulnerable, moderately vulnerable and not vulnerable categories. Especially considering the condition of the Mentawai, there are four large islands consisting of 10 sub-districts, where crime is increasing every year, especially those in the Mentawai Islands Regency area such as motor vehicle theft. Based on the background of the problem above, the researcher is interested in taking research in creating a system to predict the crime rate in the Mentawai Islands Regency in order to anticipate the surge in crime that will come. The method used is the K-Means Clustering Algorithm as a non-hierarchical data clustering method to partition existing data into one or more clusters or groups. This method partitions data into clusters so that data with the same characteristics are grouped into the same cluster and data with different characteristics are grouped into other clusters. Clustering is one of the data mining techniques used to get groups of objects that have common characteristics in large enough data. The data used is data on cases of criminal theft of motor vehicles for the last 5 years from 2016 to 2020. The results of the test show that South Sipora District is an area prone to the crime of motor vehicle theft.

scholarly journals Pengaruh Samsat Keliling, Samsat Drive-Thru, E-Samsat Terhadap Penerimaan Pajak Kendaraan Bermotor Pada Kantor Samsat Jakarta Timur

2020 ◽  
Vol 5 (1) ◽  
pp. 125
Author(s):  
Hartanti Hartanti ◽  
Rr Karina Alviani ◽  
Ratiyah Ratiyah
Keyword(s):  
Linear Regression ◽  
Multiple Linear Regression ◽  
Motor Vehicle ◽  
Motor Vehicles ◽  
Tax Revenue ◽  
Analysis Method ◽  
Local Taxes ◽  
Quantitative Descriptive ◽  
Descriptive Method ◽  
Level Government

Abstrak: Pajak kendaraan bermotor termasuk pajak daerah yang dikelola oleh pemerintah tingkat satu atau provinsi. Dalam mengelola pajak kendaraan bermotor, pemerintah daerah mendirikan Kantor Samsat dimana kantor tersebut memberikan bermacam-macam layanan seperti Samsat Keliling, Samsat Drive Thru dan E-Samsat. Penelitian ini bertujuan untuk mengetahui pengaruh secara parsial maupun simultan Penerimaan Pajak dari Samsat keliling, Samsat Drive Thru dan E-Samsat terhadap penerimaan pajak kendaraan bermotor di Jakarta Timur. Metode analisis menggunakan metode Diskriptif Kuantitatif dan di analisis menggunakan regresi linier berganda. Hasil penelitian menunjukkan secara parsial Samsat Drive Thru berpengaruh signifikan terhadap penerimaan pajak kendaraan bermotor, sedangkan Samsat keliling dan E-Samsat secara parsial tidak berpengaruh terhadap penerimaan Pajak kendaraan bermotor pada Kantor Samsat Jakarta Timur. Secara Simultan Samsat Keliling, Samsat Drive Thru, E-Samsat berpengaruh terhadap penerimaan pajak kendaraan bermotor pada Kantor Samsat Jakarta Timur   Kata kunci: Samsat keliling, Samsat Drive-Thru, E-Samsat, Pajak kendaraan Bermotor   Abstract: The motor vehicle tax includes local taxes which are managed by the first or provincial level government. In managing the motor vehicle tax, the local government established the Samsat Office where the office provided various services such as the Mobile Samsat, the Samsat Drive Thru and the E-Samsat. This study aims to determine the effect of partial or simultaneous tax receipts from mobile Samsat, Samsat Drive Thru and E-Samsat on motor vehicle tax in East Jakarta. The analysis method uses quantitative descriptive method and analyzed using multiple linear regression. The results showed partially Samsat Drive Thru had a significant effect on motor vehicle tax revenue, while mobile Samsat and E-Samsat partially had no effect on motor vehicle tax receipts in the East Jakarta area. Simultaneously Samsat Keliling, Samsat Drive Thru, E-Samsat affect the tax revenue of motor vehicles in the area samsat of ​​East Jakarta   Keywords: Mobile Samsat, Samsat Drive-Thru, E-Samsat, Motorized Vehicle Tax

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