Two-wheeled Vehicles Research Articles

Model-Free Filter-Based Trajectory Tracking Controller for Two-Wheeled Vehicles Through Pole-Zero Cancellation Technique

Considering the nonlinear dynamics, this paper devises an advanced position trajectory tracking controller with a model-free filter for two-wheeled vehicle (TWV) applications. The proposed technique preserves a simple structure in the form of the proportional–integral (PI) controller involving the model-free filter and nonlinearly structured feedback gains, which make the following contributions: (a) the proposed filter smooths the position and yaw angle measurements according to the first-order convergence rate without any model information; and (b) the PI control with the nonlinearly structured feedback gains robustly stabilizes the position and yaw angle errors along the desired first-order system to accomplish the trajectory tracking mission, which is obtained by the pole-zero cancellation (PZC) in the presence of modeling errors. MATLAB/Simulink was used to emulate the resulting feedback system and validate the effectiveness of the proposed technique.

Whole body vibration and rider comfort determination of an electric two-wheeler test rig

Background Two-wheeled vehicles are the major mode of transportation in India. Such vehicles are exposed to excessive vibration on the road when compared to four-wheeled vehicles. However, the research on the reduction of whole body vibration in the case of two-wheelers is not explored in detail. The present study predicts rider comfort in the case of an electric two-wheeler as per ISO 2631-1, by obtaining the finding the weighted acceleration at the strategic locations of vibration at the test rig. Methods An electric two-wheeler test rig is used in the study. The values of acceleration from the test rig in running conditions are obtained by using NI LabVIEW 2019. The drive cycle of the electric vehicle (EV) test rig is controlled by Sync sols’ EV lab software. Obtaining the weighted root mean square (RMS) acceleration from running the test setup, it is compared with the ISO 2631-1 standard to obtain the rider comfort. Results Loading area, traction motor, base mount, and suspension were found to be the strategic points of vibration. Frequency weighted RMS acceleration of 0.3 to 0.4 m/s2 obtained at these points are prone to cause discomfort for the rider. Vehicle speed, road profile, and duration of exposure were found to be important parameters affecting the rider’s comfort. A maximum of 4.6 m/s2 amplitude was observed. The loading area, which corresponds to a rider’s seat in actual vehicle, is important and reduction of these vibrations make the ride comfortable for the rider. Suspension and base mount of the test rig are found to be uncomfortable observing the weighted RMS acceleration. Conclusions A suitable damping technique design is very much essential in reducing these vibrations and improve the rider comfort, as many more non-deterministic vibrations are prone to cause dis-comfort in case of actual on road riding conditions.

Upaya Kepolisian Dalam Menanggulangi Tindak Pidana Pencurian Kendaraan Bermotor Roda Dua (Studi di Polsek Munte Kabupaten Karo)

This research aims to knowing how the police handle the crime of theft of two-wheeled motorized vehicles is the aim of this investigation (Study at the Munte Police). Munte Police, located in Singgamanik Village, Munte District, Karo Regency, North Sumatra, is the location for this research. Qualitative descriptive research methodology was used in this research. Five members of the Munte Police and two residents of Munte Village were the five research subjects in this study. Primary and secondary data are two types of data used in research. The data analysis method uses interactive analysis stages, including data collection, data reduction, data presentation, and drawing conclusions. Based on the findings of the study, Munte Police use punitive and preventive measures in an effort to stop people from stealing two-wheeled motorized vehicles. The preventive efforts carried out by the Munte Police include integrating security with the community in the Munte District area, improving police performance through implementing a term evaluation system, and making banners that urge the public to be more careful and alert in all their actions. Munte Police conduct regular and sporadic raids in areas with high crime rates as part of its repressive measures, including by imposing punishments on perpetrators of theft of two-wheeled motorized vehicles. The Munte Police are making every effort to tackle the crime of two-wheeled motor vehicle theft that occurs in the Munte District area. The main aim is to reduce the quantity of these crimes and enable people to live safely and peacefully.

PELATIHAN PERAWATAN KENDARAAN SEPEDA MOTOR BAGI MASYARAKAT DESA SIRNAJAYA

A motorcycle is an engine-driven two-wheeled vehicle composed of different parts that are subjected to different loads during operation, such as heat load, chemical load, impact, bump, twist, push-pull-bend force, friction, pressure. The precision of vehicle components will vary from their original and standard conditions over time such as becoming looser, weaker, or finer. To ensure it is always in top condition, cars require regular maintenance which can be done by a garage or by yourself. In improving the ability to maintain motorcycles and make an income through their own business, especially in the field of motorcycle maintenance services. Through this community service project, counseling on business management and training on motorcycle maintenance skills, including the correct adjustment and use of repair equipment, are provided. The service method applies socialization of motorcycle maintenance theory and direct assistance on how to perform motor vehicle maintenance for Sirnajaya Village youth. The results of this service activity are the increased knowledge, understanding, and abilities of the participants in the field of motorcycle maintenance and repair, besides that this service program supports the success of the community in establishing their own business.

PELATIHAN SERVIS RINGAN KENDARAAN SEPEDA MOTOR BAGI MASYARAKAT DESA RIDOGALIH

Motorbikes are a means of transportation that is often used in daily activities, the development of increasingly sophisticated technology has begun to be combined with the help of electronic control circuits such as injection systems to control combustion in the motorcycle combustion chamber or indicators to show hot engine temperatures that make it easier for motorcycle owners to carry out vehicle maintenance. Therefore, due to the lack of workshops or vehicle service services, here the author will share information about motorcycle maintenance that can be done by yourself to save costs and can be developed as a form of business, such as a workshop. With this lack of information, most people only use motorbikes for their daily needs and ignore motorcycle maintenance. Here the author will educate the community on how to maintain their two-wheeled vehicles in Citeureup 1 hamlet by socializing the importance of maintaining two-wheeled vehicles, training on maintaining two-wheeled vehicles, and evaluation to ensure that the community can maintain their own motorbikes. This program also has the aim that the people of Sirnajaya Village, Serang Baru District, Bekasi Regency are able to maintain their own motorbikes and can be developed as a form of business, namely a workshop. Based on the light service training, there are several impacts, among others can increase understanding related to light service procedures such as engine oil change, axle oil, CVT maintenance and replacement of front brake lining and understand about safety riding and have understood how to drive properly.

An Investigation of Classical Model Predictive Controller Path Tracking Performance of a Two-Wheel and Four-Wheel Steering Vehicle

Studies on self-driving vehicles have become a trend in recent years, and many systems have been developed to enable autonomous manoeuvre. Various methods have been used to improve path-tracking algorithms which increase vehicle performance, including tracking accuracy and stability. Path tracking is one of the primary problems for autonomous vehicles where the vehicle deviates from target paths, which leads to unnecessary counter-correction. Conventional front wheel steering is unable to satisfy the manoeuvre with a high lateral acceleration since the front steering angle is limited in accurately responding to vehicle dynamics. Moreover, the characteristics of front wheel steering vehicles affect handling stability due to the fact that the turning radius is larger than the vehicle itself. This disadvantageous can compromise safety during under-steer and over-steer situations. The main objective of this preliminary study is to investigate the performance of a four-wheel steering system (4WS) in path tracking for autonomous vehicles using a classical model predictive controller (MPC). Conventional two-wheel steering (2WS) tracking performance following the desired driving system with the same MPC controller is compared with 4WS vehicles. The driving system is developed using Driving Scenario Designer to extract the desired yaw angle and lateral position for controller references constructed in Matlab Simulink. Fixed MPC constraint, prediction, control horizon, yaw angle and lateral position weights were used to compare the performance between 2WS and 4WS vehicles. The simulation results show that 4WS is three times better than 2WS vehicles in tracking predetermined paths. 4WS vehicle show 74.55% better performance in lateral position tracking and 68.75% better performance in trailing predetermined yaw angle value. The simulation data from the preliminary study will be used as a guideline to develop an advanced controller of 4WS vehicles.

Impact of road noise components (rolling/propulsion) by vehicle categories (light-duty, heavy-duty and two-wheeled vehicles) on population's noise exposure and associated adverse health effects

Exposure to road traffic noise can lead to various adverse health effects, ranging from annoyance and night-time sleep disturbances to ischemic heart diseases. The aim of this paper is to identify the contribution of the road noise components (rolling/propulsion) for each vehicle category (light-duty, heavy-duty and two-wheeled vehicles) on population's noise exposure and the associated adverse health effects. This analysis focuses on the case study of Lyon, France. The input data align with the requirements of the 4th deadline of Directive 2002/49/CE and adhere to the CNOSSOS calculation standard. The results reveal that the rolling noise component of light-duty vehicles is predominant due to vehicle speed and traffic volume. It is the sole noise component (i) significantly exposing a portion of the population to Lden > 68 dBA, noise limit set by the French decree of April 4, 2006, and (ii) where over half of the population is exposed to Lden > 53 dBA, recommended threshold by the World Health Organization (2018). By using transfer functions established between noise components for each vehicle category, and population's noise exposure, noise source-abatement solutions can be quantified in terms of their impact on population's noise exposure, thus determining the reduction in health impacts.

Preferable price to buy an electric two-wheeled vehicle for college students

This research delves into the determinants affecting Taiwanese college students’ purchasing behavior towards two-wheeled electric vehicles (ETWVs) and the financial allocation they are willing to commit. A choice experiment design was utilized, with a sample of approximately 900 college students, regular users of two-wheeled gasoline vehicles (TWGs). The students engaged in one of two choice scenarios, presented with general characteristics, operational efficiency, vehicle cost, and subsidy strategies. Subsequent to the scenarios, respondents indicated their willingness to pay (WTP) for a ETWV. ETWVs, apart from being an emerging transportation alternative, also present potential environmental and health benefits due to reduced air pollution. The dependent inverse hyperbolic sine (IHS) double-hurdle model was employed, facilitating the accommodation of heteroscedasticity and correlated normality. The outcomes suggest that purchasing behavior for ETWVs among college students is shaped by factors such as purchase subsidy, tax breaks, and ETWVs’ capability in supporting students’ external travel requirements. The average WTP for ETWVs among this demographic stands at US$ 1,410. Importantly, the dependent IHS double-hurdle model, considering heteroscedasticity, proved statistically superior to its counterparts. Insights from this research offer crucial information on the price range students are likely to accommodate for ETWVs and provide a foundation for framing incentive-driven policies to amplify ETWV adoption

Efektifitas arang aktif tongkol jagung dalam menurunkan emisi kendaraan bermotor berbahan bakar ganda

Emission reduction through after treatment processes has become one of the options to minimize the adverse effects of two-wheeler emissions. Activated charcoal adsorbents have been proven effective in reducing emissions to a certain extent. In this study, corn cob charcoal activated with a 15% NaCl solution serves as the adsorbent. The adsorbent used is shaped into particles with a mesh size of 10. The adsorbent is placed in the modified motorcycle muffler. Testing is conducted on two-wheeled vehicles operated using the dual-fuel method, where biogas and pertalite are used as fuels. With this method, fuel concentrations are obtained significantly smaller compared to vehicles without emission reduction methods. Testing is carried out for 2 hours to determine the durability of the adsorbent in absorbing exhaust gas emissions. Based on the test results, where data collection is conducted every 10 minutes, the concentrations of emissions including hydrocarbons (HC), carbon monoxide (CO), and carbon dioxide (CO2) initially decrease and then rise again after several minutes. This indicates that the adsorbent effectively reduces emissions in a relatively short duration. However, the effectiveness of corn cob activated charcoal in reducing these three emissions varies, with the adsorbent showing good performance in reducing HC

REKAYASA SISTEM INFORMASI FASILITAS PARKIR BERLANGGANAN DI KAMPUS SUDIRMAN UNIVERSITAS UDAYANA BERBASIS ANDROID

Parking facilities have become a crucial component in this era of mobility. The increasing number of vehicles each year has led to a growing demand for parking spaces. Parking facilities must meet several criteria, such as guaranteed security, adequate land, and good management to ensure drivers feel comfortable leaving their vehicles. The Sudirman Campus of Udayana University has adequate parking space at various corners of the campus for both two-wheeled and four-wheeled vehicles. However, the availability of adequate parking facilities is not proportional to good management and security supervision. This often leads to various problems, ranging from overload to security issues. Therefore, an integrated parking management system is needed to ensure that the use of parking spaces at the Sudirman Campus is more orderly, targeted, and secure. In this study, the author designs an integrated parking management system for the Sudirman Campus that utilizes technology. This system has two main components: an Android-based parking facility information system and a prototype automatic gate. The Android application is built using the Flutter framework and utilizes QR Code technology, which is a development of Barcode. Meanwhile, the automatic gate prototype is built based on the Internet of Things and serves as a trial before the actual design of the automatic gate.

Development of hazard prediction test and interventions for two-wheeled electric vehicle riders in China

Objective This paper aimed to develop a hazard prediction test and enhance two-wheeled electric vehicle (TWEV) riders’ hazard perception and prediction capabilities via interventions by executing two distinct studies. Study 1 aimed to develop and validate a hazard prediction test. Study 2 evaluated the efficacy of two interventions, self-commentary and what happens next (WHN), integrating expert commentary. Method For Study 1, a video-based hazard prediction test was developed through video recording and clipping, with participants categorized into high and low prediction ability groups for experimentation. Data analysis employed the receiver operating characteristic (ROC) curve. Study 2 categorized participants into four groups: self-commentary with licenses (SCL), self-commentary without licenses (SCNL), WHN with licenses (WHNL), and WHN without licenses (WHNNL), for conducting a one-week intervention experiment. Data collected from participants’ pre-intervention, post-intervention, and aftereffect tests were subjected to repeated measures analysis of variance (ANOVA). Results Analysis of the ROC curve indicated the test can distinguish the riders with different hazard prediction levels. ANOVA results demonstrated that the measurement time had a significant positive effect on scores (p < 0.001). Both interventions significantly improved hazard prediction ability (p < 0.05), and the effect persisted one week after administration. The effect of the WHN intervention was significantly greater than the self-commentary method across all time points. Conclusion The hazard prediction test developed in this study could assess riders’ hazard prediction ability, with the identified interventions demonstrating effectiveness in enhancing this ability. These findings suggested potential application in future qualification tests for TWEV riders, contributing to enhanced traffic safety awareness among TWEV riders in China, thus advancing overall traffic safety.

The Road User Perception of Municipal Road Deterioration: A Case Majalengka West Java

Municipal Roads are local infrastructure and serve as global routes for trade, tourism, and cultural exchange. Damage to roads is a topic of much urgent discussion in Indonesia. The aim of research on road damage in municipal roads, Majalengka, is to investigate the causes and impacts of road damage in the area. The research location to be carried out is Jalan Baribis in the Majalengka district. This research uses qualitative methods with perception analysis to study the various factors that cause damage to roads in the city of Majalengka and their Impact on society. When passing through Jalan Baribis, Majalengka, the respondents' data was divided into gender, vehicle used, and age. Based on the questionnaire results, the variable that received the highest importance value was the effect of road damage on two-wheeled vehicles and pedestrians, with an average value of 4.8. The variable that received the lowest importance value was road damage to public facility services, with an average value of 4.2. Meanwhile, the variable that received the highest satisfaction score was the effect of road damage on two-wheeled vehicles and pedestrians, with an average value of 2.6. On the other hand, the variable that got the lowest satisfaction score was the effect of road damage on heavy vehicles, with an average value of 2.14. From the research results, the level of importance of damage to road sections to road users has an average value of 4.48, which shows that repairing damaged road sections is very important.

PENCEGAHAN OVERHEATING MELALUI EDUKASI PERAWATAN PADA KENDARAAN RODA DUA

Overheat is a condition when a vehicle's engine temperature reaches a higher level than it should and cannot be maintained at a normal operating temperature. This is a serious problem that can cause damage to the engine if not addressed immediately. The purpose of this community service program is to prevent overheating in Sukaragam Village by educating the community about two-wheeled vehicle maintenance. Therefore, this community service aims to complete community service by providing counseling on simple maintenance of motorized vehicles. The community service method applies counseling in the form of brief socialization and training on how to care for motorbikes to avoid overheating. The success of this community service activity is expected to reduce cases of overheating in two-wheeled vehicles in the community. With a better understanding of vehicle maintenance, it is hoped that the community can take preventive actions such as checking the condition of the engine coolant regularly, using the appropriate oil, and avoiding driving when the engine is too hot. This not only improves driving safety, but also extends the life of the vehicle and reduces repair costs. In addition, this activity also contributes to reducing exhaust emissions produced by motor vehicles, thus supporting environmental conservation efforts.

Injury risks for different road users in Nepal: a secondary analysis of routinely collected crash data

Background Road traffic injuries are the 12th leading cause of mortality globally. Nepal, one of the least developed countries in the world, has a rapidly rising rate of road traffic-related morbidity and mortality. There is incomplete reporting of traffic crashes in Nepal in the last three World Health Organization global status reports on road safety. Together with poor-quality coding of crashes, essential information to inform prevention interventions or make international comparisons is lacking. Objectives The study aimed to critically analyse routinely collected traffic police data in Makwanpur district, Nepal, to identify the road user groups most likely to be involved and injured in traffic crashes in this part of the country. Design Secondary data analysis. Setting Makwanpur district, Nepal. Data sources Road traffic crash records from the District Traffic Police Office, Makwanpur, over 2 years (April 2017–March 2018 and May 2019–April 2020). Data were extracted from paper-based records onto an electronic database, and the data were analysed descriptively using the Statistical Package for the Social Sciences version 24.0 (IBM Corporation, USA). Results There were 291 crashes recorded in 2017–8 and 435 crashes in 2019–20. Two-wheeled vehicles (motorcycles/scooters) were the most frequently involved in police-reported crashes (35.5%). For most crashes (419/726, 58%), no cause was documented in the police record. Road users involved in crashes were mostly riders or passengers of motorised two-/three-wheelers (33.4%), four-wheeled vehicles (19.9%) or buses (16.7%). Of fatal injuries, 31.2% were riders or passengers of motorised two-/three-wheelers, and 24.8% were pedestrians. Limitations The data used represent crashes reported to the traffic police and therefore underestimate the true number of crashes and injuries. At the end of the second period of study, local movement restrictions associated with the COVID-19 pandemic lockdown limited the traffic on the roads, resulting in fewer crashes in March and April 2020. In most crash records, there were missing data, limiting the ability to determine contributory factors with confidence. Conclusion This study contributes to the evidence gap by describing crashes and mortality data by vehicle type and road user category. The findings suggest that the number and rates of crashes may be increasing over time. Action to improve the quality and completeness of data routinely collected by the traffic police is needed; a piloted web-based Road Accident Information Management System has the potential to support improved routine data collection. Future work The data indicate crashes occurring in one district over 2 years. To better understand the apparent increase in crashes, an analysis over a longer period, and over multiple districts, would be necessary. Funding This article presents independent research funded by the National Institute for Health and Care Research (NIHR) Global Health Research programme as award number 16/137/49.

Demographic profile of ophthalmic injuries following road traffic accidents at a tertiary care hospital in Western India

Context: Road traffic accidents (RTAs) are one of the leading and most common causes of ocular injuries, especially in developing countries like India. Aims: The aim of the study was to study the incidence and clinical presentation of ophthalmic injuries in RTAs. Settings and Design: This was a prospective hospital-based study observational study. Subjects and Methods: A prospective cross-sectional study was conducted among 300 patients in the department of ophthalmology of a tertiary hospital in Western India from October 2021 to October 2023. Detailed ocular examination and investigations were done. Various parameters, including demographics, type of vehicle, type and severity of the injury, and visual acuity at presentation, were studied. The data obtained from the results were expressed in frequency and percentages. Statistical Analysis Used: Not applicable. Results: A total of 300 patients were included in the study. The right eye was affected in 177 out of 320 cases. Male preponderance was noted. The most common ocular finding was ecchymosis 168 (56%) followed by lid lacerations 81 (27%). Majority of the cases were in the age group of 31–40 years (31.67%). The incidence of injuries in two-wheeler riders was 283 (94.33%), of which people who were driving without a helmet were 256 (90.5%). Conclusion: We concluded from our study that the most common age group, 31–40 years, was involved in ocular injuries due to RTAs with male preponderance. Most of those who sustained injuries were riding two-wheeler vehicles without helmets. The involvement of the right eye was more common in unilateral cases. The most common injury found was blunt trauma presenting as preorbital edema and ecchymosis.

Research on Stability Control System of Two-Wheel Heavy-Load Self-Balancing Vehicles in Complex Terrain

Research on Stability Control System of Two-Wheel Heavy-Load Self-Balancing Vehicles in Complex Terrain

Experimental Study of the Effect of Roller Shape Variations on the CVT System using Petrol-Pyrolytic Fuels toward the Power Characteristics of Automatic Motorcycles

There are two types of two-wheeled vehicles when viewed from the transmission system: manual and automatic. The automatic transmission circuit on the automatic motor, the roller (ballast), is on the primary pulley. In the market, various rollers (weights) are sold, starting from those that are standard and different from the standard with lighter or heavier weight variations. However, there are also aftermarket rollers produced in several automotive industries, one of which is UNIONMATERIAL. The difference lies in the shape and materials used. This study aims to analyze the effect of variations in the shape of the roller on the characteristics of power transmission on automatic motorcycles. The type of vehicle used is a motorcycle produced in 2009 using a dyno test test with two test methods. The first test is from low engine speed ± 1400-1600 rpm to 9000 rpm, while the second test is from medium engine speed ± 4000 rpm to 9000 rpm. In addition, the fuel consumption test was also carried out. The variation used is a roller shape consisting of a round roller, a sliding roller, and a flying roller weighing 12 grams. The highest results obtained at a power of 0.7 HP occurred on the flying roller with 7.1 HP/ 3916 rpm, while the torque was 5.19 N.m on the flying roller (23.96 N·m/1250 rpm). There is an effect on fuel consumption, but not too significant. The biggest difference occurred in the engine parameter RPM 5000 of 0.1 between the flying roller (0.9 L/h) and sliding roller (0.9 L/h) with the round roller (1 L/h) - this happens because the shape of the flying roller is not cylindrical and more dynamic, which is adapted to the movable drive face. There is an additional wing on the roller weight. The data from the results of this study have implications for increasing vehicle performance without changing engine capacity, which requires large costs.

Enhancement of rider comfort by magnetorheological elastomer based damping treatment at strategic locations of an electric two wheeler

The vibrations generated in the two-wheeled vehicles like motorcycles due to road irregularities such as cracks, potholes, and bumps on the road cause discomfort for the rider as well as the pillion. These vibrations are reported to cause lower back pains, musculoskeletal effects, fatigue, and long-term health issues. Particularly, electric two-wheelers are more susceptible to these vibrations caused by the road and need attention. This paper presents an innovative technique for the reduction of vibrations at prominent locations in the electric two-wheeler to improve the rider’s comfort. All measured accelerations are about vertical direction (along z-axis as per ISO 2631-1 standard). Passive and Semi-active damping treatments namely, Room temperature vulcanizing Silicone rubber and Magnetorheological elastomer (MRE) were applied on the test vehicle at strategic locations of vibration. Both were compared for their effectiveness in reducing the vibrations. Results showed that MRE based damping technique proved better vibration isolation at the strategic locations. The weighted root mean square acceleration as well as vibration dose values were found to decrease with the help of damping treatments thus improving the rider’s overall comfort level.

Implementation Of Medan Mayor Regulation Number 26 Of 2024 Concerning Guidance For Implementing Subscription Parking Services On The Road Side From A State Constitutional Law Perspective

One of the public policies in the form of regional head regulations of the Regent/Mayor is the Medan City Mayor Regulation Policy (Perwal) Number 26 of 2024 concerning the Implementation of Subscription Parking on Public Roadsides. The regulation implements a roadside subscription parking system in the capital city of North Sumatra Province by subscription starting July 1, 2024. The amount of the subscription parking fee is IDR 90,000/year for two-wheeled vehicles, IDR 130,000/year for four-wheeled vehicles, and IDR 168.000,000/year for trucks/buses.This study uses the Empirical Juridical Type of legal research method, namely research that focuses on examining theory and practice in positive law. is research that places law as a social phenomenon. The data collection method used is by interview. This study refers to primary and secondary data (field and library data). The public supports the subscription parking program to maximize the acquisition of Regional Original Income (PAD) from the parking sector, but the process, substance and implementation must not violate the rights of citizens, especially if it conflicts with applicable laws and regulations.

Attitude Adjustment of a Two-Wheel Balance Vehicle Based on an Enhanced Model-Free Adaptive Control Algorithm

Attitude Adjustment of a Two-Wheel Balance Vehicle Based on an Enhanced Model-Free Adaptive Control Algorithm