Auto Maintenance Research Articles

Analysis of Shoulder Sprains and Strains in Mining

Material handling injuries reported to the U.S. Mine Safety and Health Administration (MSHA) result in nearly 70,000 days of work lost each year. Several mitigation efforts for these injuries focus on the back, but shoulder injuries account for four times the days lost. Nonfatal incidents reported to MSHA from 2013 through 2017 were limited to shoulder sprains and strains and were analyzed to determine what contributed the most to these injuries. Injuries were coded based on the task performed, motions involved, and the tools used. The analysis indicated that auto maintenance and tasks involving loading/unloading supplies led to the highest number of injuries. Many of these injuries were related to operating equipment or the use of specific tools. The injuries often involved lifting/lowering or pulling/pushing movements. These findings suggest future mitigation strategies for the risk of shoulder sprains and strains should focus on auto maintenance and tasks involving loading/unloading supplies.

The Relationship Benefits of Auto Maintenance and Repair Service: A Case Study of Korea.

This study aimed to empirically examine what effects confidence, social, and economic benefit factors have on continuous relationship orientation through the mediation of service trust, service satisfaction, and customer engagement factors in the auto maintenance and repair service sector. This study carried out a questionnaire survey with 319 customers using auto maintenance and repair service and verified hypotheses. As a result of the analysis, the confidence and social benefits of auto maintenance and repair service affected service trust, while the confidence and economic benefits affected service satisfaction. Service trust did not affect customer engagement or long-term relationship continuity but affected them when it mediated service satisfaction. Consequently, it was revealed that confidence benefit should be consolidated and that professionalism or service quality excellence in maintenance or repair becomes the most important factors to produce customer engagement or long-term relationship continuity in the auto maintenance and repair service. Although it is vital to improve trust or service, it is confirmed that a relationship can be maintained only if the auto maintenance or repair service is satisfactory.

Research on the Development Opportunities and Students' Employment of Higher Vocational Education Colleges in Guangdong-Hong Kong-Macao Greater Bay Area

This paper expounds the development opportunities of higher vocational education institutions in Guangdong-Hong Kong-Macao Greater Bay Area and the necessity of accelerating the adjustment and improvement of teaching methods, based on the data analysis of auto maintenance industry, logistics transportation production, finance and the other fields of skilled personnel in this Area. Since the implementation of the Outline of Guangdong-Hong Kong-Macao Greater Bay Area Development Plan by the Central Committee of the Communist Party of China and the State Council, the newly registered similar industries in Guangdong-Hong Kong-Macao Greater Bay Area have increased dramatically, showing a substantial increase. On the one hand, it is found that some enterprises and employers are reduce the number of posts and personnel so as to reduce the input cost of human resources, and reduce unnecessary production links so as to avoid invalid production costs, so as to improve work efficiency. On the other hand, they are in urgent need of high-level technical and technical talents who can fight when they come. The graduates of higher vocational colleges were never favored by employers, and their orientation and direction were unclear. Compared with the graduation certificates of ordinary colleges and universities with the same major, they were "second-class certificates". In fact, the graduation certificates of higher vocational colleges are showed the characteristics of "practical certificates".

The Perceived-experiential Value and Service Quality of Auto Maintenance and Repair Service

The Perceived-experiential Value and Service Quality of Auto Maintenance and Repair Service

Complexity metrics for auto fault diagnosis based on information entropy

Due to plenty of advanced and electronic technology used in the modern auto, the modern auto maintenance workload should consider the influence of the fault diagnosis complexity on maintenance man hour, so it is necessary and valuable to evaluate the complexity of the auto fault diagnosis. In this paper, the method of complexity assessment of auto fault diagnosis is discussed by using the information entropy. Firstly, the theory of complexity measurement based on information entropy is introduced, and then the complexity assessment index and the calculation process are shown. Finally, take the engine overheating fault for example, the hierarchy structure of this fault diagnosis is analyzed, and the complexity value of this fault diagnosis based on information entropy is obtained. The results show that this assessment method has a certain practicality and feasibility, which could be utilized to optimize the auto fault diagnosis strategy and maintenance work arrangement.

Analysis of Safety Compliance and Accident Impacts on Lost time Performance of Small Scale Automotive Maintenance Workshops in Calabar, Nigeria

The objective of the present research is twofold; first to assess the level of safety compliance practices among artisans and secondly, to measure the impacts of unplanned lost time emanating from accident on time performance of small-scale auto maintenance firms. Ninety different auto-maintenance jobs executed by automobile, heavy duty, generator and panel beater auto firms between, Januarys to December, 2016 were analyzed using direct observation. Furthermore, primary data collected were analyzed using MS Excel 2013 and Minitab 17 software. Results revealed the mean performance rating of workshops on the availability and usage of personal protective equipment as 143.9 and 154.7. While 224.2 and 302.7 constitutes respective poor usage rate and non-availability of personal protective equipment in the respective workshops. Results further revealed 58.2% as average productive lost time rate resulting from accident occurrence. Conversely, regression analysis revealed that a unit increase of 659.2, 63.5 and 82.8 in accident, severity and lost time index, caused a decreased of -150.8 in overall productivity lost factor. With a coefficient of determination (R2 ) of 72.01% at p-value less than 0.005. Hence, a positive and significant relationship between accident and auto mechanics time performance exist. Therefore, sensitization of stakeholders in this sector on the usage of personal protective equipment and the need to make safety their priority as well as regular inspection for safety compliance by regulatory bodies are recommended to build customers trust and improve productivity in this sector

Education on Measurement Skills Using a Dial Gauge in Auto Maintenance

Education on Measurement Skills Using a Dial Gauge in Auto Maintenance

Cost performance analysis of small scale automotive maintenance firms in Calabar metropolis

AbstractThe paper presents the evaluation of cost-time performance analysis of small scale automotive maintenance firms in Calabar metropolis. The objective of the study is to ascertain the impacts of cost-time variation on the productivity performance of SMS auto maintenance firms. Primary data from seventy different auto-maintenance projects executed by Automobile, Heavy duty, Generator and Panel beater auto firms between February to October 2016 were sampled using direct observation. Analyses of data was performed using Microsoft Excel 2013 and Eviews 9.7 software. Descriptive results revealed poor cost estimation, maintenance duration, labour cost increase, maintenance type, industry size and poor scheduling which ranged between 69.31 ≥ 64.31 ≥ 63.75 ≥ 61.67 ≥ 60.97 ≥ 59.31 respectively as major factors causing cost-time overrun in SMS auto maintenance firms. Average cost and time overrun were specified at 82.8 and 62.8%, thus resulting in a cumulative cost-time performance factor of 6.4, 41.3 and 93....

3F11 自動車整備における測定技術教育 : 第1報 訓練用教材によるダイヤル・ゲージの教育効果((03)実験・実技,口頭発表)

3F11 自動車整備における測定技術教育 : 第1報 訓練用教材によるダイヤル・ゲージの教育効果((03)実験・実技,口頭発表)

The dynamic 4S auto maintenance shop scheduling in a multi-constraint machine environment based on the theory of constraints

In this paper, 4S auto maintenance shop scheduling with multi-constraint machines is of concern. In 4S auto maintenance shop, it may appear temporary bottlenecks except for the long-term bottlenecks, and they form multi-constraint machines jointly with the task size reaching the peak. Through scheduling the constraint machines effectively, it can improve overall performance of the system to satisfy the customers’ requirements. First, we describe and construct a model for the scheduling problem which can be designed as the dynamic flexible job shop scheduling problem (FJSP) with multi-constraint machines for the goal of minimizing customers’ waiting time. Then, putting an emphasis on the constraint machines, we apply the theory of constraint to decompose and simplify the complex system and also construct the coordination mechanism between constraint machines and non-constraint machines. After that, an improved constraint-guided heuristic algorithm is proposed to solve the constraint machine scheduling problem, while different dispatching rules are selected for solving the non-constraint machine scheduling according to the location of the non-bottleneck in the system. What is more, we design the rescheduling rules combing characteristics of the problem to realize dynamic scheduling with multi-constraint machines. Finally, 4S auto maintenance shop scheduling with high workload during the rush hour (on the eve of the holiday) served as the actual cases, and the proposed algorithm is compared with three different dispatching rules under various size of problems. The result obtained from the computational study has shown that the proposed algorithm is much better.

The Design and Research of Hydraulic Drive Auto Lift Machine Based on Solidworks

Double-column vehicle lift is a lifting equipment commonly used in auto repair and maintenance units, which is widely applied to the repair and maintenance of small vehicles such as cars. The design is a double-column vehicle lift driven by hydraulic. It mainly consists of lifting device, synchronous drive, column and bracket arm. The hydraulic circuit of hydraulic lifting device is designed. Currently, the articles concerning solidworks in the design of hydraulic drive lift only focus on unilateral appliance. When it comes to the design of the system, most of them concentrate on part modeling, virtual assembly, finite element analysis of parts ,etc, or a partial function of certain lifting machine. Seldom of them make a systematic research concerning motion stimulation. This paper, however, makes a three-dimensional virtual modeling for the lifting machine by the use of solidworks. In addition, it makes a structure verification of lift with assembly and motion simulation.

Conside ration on Formation and Transformation of the Seongsoo Industrial Complex in Seoul - Focusing on Handmade Shoes and Auto Maintenance & Repair

The present study considers the formation of the Seongsoo Semi-industrial District developed by the post-war land readjustment project and traces the process of its transformation in light of handmade shoes and auto maintenance and repair industries in order to establish the roles assumed by the Seongsoo Industrial Complex in Seoul.BR Due to the Cheonggyecheon development during the postwar years, companies were forced to settle in Seongsoo-dong, where labour-intensive sewing, textile, leather and machinery industries emerged subsequently. In 1972, the national City Beautiful Movement coerced small businesses into moving out of the city center, reproaching them for impeding the modernization and development of sound urban environment. The movement was intended to secure commercial and business functions in the inner city center, while at the same time attributing Seoul’s old structural and inherent problems to small companies. On account of the exorbitant land price, restricted land use and controlled factory construction in the city center within the boundaries of 4 Gates, small companies had no choice but to move to the outskirts of the city.BR For half a century, the small businesses in the Seongsoo Industrial Complex in Seoul have been kept out coercively in the name of urban renewal projects by central and local governments. Seoul Metropolitan Government plans to build a dynamic corporate ecosystem by developing handmade shoes, printing and auto maintenance and repair trades into a convergence model embracing conventional industries and state-of-the-art IT, by setting up an organic business support system and by vitalizing networks.The three trades are highly likely to work for the benefit of Seongsoo-dong’s urban identity. Yet, other smallscale trades of machinery, metals, manufacturing, wholesale/retail and services are most likely to be excluded from the plan. As a matter of fact, the current policy to support the aforementioned three trades only draws substantial criticism. Thus, it is necessary to create an industrial ecosystem in consideration of the place-ness and historicity of the Seongsoo Industrial Complex in Seoul.

Information Resources in the Application of the Auto Inspection and Maintenance

Although the use of information resources in our country, auto maintenance and a series of problems, but the wave of the information industry is surging, overwhelming impact to the whole society in various fields. The application of information resources in automobile repair industry prospects will be very broad. This article mainly introduced the demand for information resources and existing problems of maintenance and information resources in the application of the auto inspection and maintenance.

Nissan Car Test Bench Research Production and Use of Teaching

With the development of auto maintenance technology the applications of vehicle in the car maintenance teaching are becoming more and more. But it is inconvenient and not intuitive on the whole vehicle fault setting and testing. Especially at the time of data measurement this will increase the loss of the vehicle. So this will make it more practical significance to substitute vehicle teaching experiment platform for the vehicle in the teaching. This makes it necessary the research and production of vehicle test bench. Here we will research the Nissan car test bench in the production and use process.

Numerical model for prediction of brake judder due to wear and rust

The research data in the present study included customer satisfaction reports provided by J.D. Power and auto maintenance records from all maintenance service centers in Taiwan. According to maintenance service centers, the consumers’ complaints ratio about brake judder was the highest of problems encountered in the first 5000 km but declined gradually with longer mileage to a constant ratio. After careful examination, it was found that variations in the thickness of brake discs caused by wear and rust were the main reason for brake judder. We have established a numerical model to simulate the variation of disc thickness in the time domain and further devised a formula to predict the complaint ratio. Two crucial and feasible variations—storage days and consumer driving days were proposed to predict the complaint ratio. The accuracy of the prediction value was as high as 80%. Furthermore, the formula could be applied to all types of vehicles, which is meaningful in improving the quality and performance of vehicles.

자동차의 제품 품질, 서비스 품질이 서비스 충성도, 제품 충성도에 미치는 영향에 대한 연구

Purpose: We measure service quality based on service process, and examine relationships among product quality, product and service loyalty. Methods: We develop a construct to evaluate process based service quality. We collect data from customers of auto maintenance centers to measure perceived product quality, service and product quality. We test relationships between constructs using structural equation model and regression analysis. Results: Relationships among perceived-product quality, service quality, service loyalty, and product loyalty are all significant. Conclusion: Perceived-product quality has a indirect impact through service quality and loyalty in addition to a direct impact on product loyalty.

An Efficient Car Management System based on an Object-Oriented Modeling using Car Number Recognition and Smart Phone

In this paper, we propose an efficient car management system based on object-oriented modeling using car number recognition and smart phone. The proposed system perceives car number of repair vehicle after recognizing the licence plate using an IP camera in real time. And then, existing repair history information of the recognized car is be displayed in DID. In addition, maintenance process is shooting video while auto maintenance mechanic repairs car through IP-camera. That will be provide customer car identification and repairs history management function by sending key frames extracted from recorded video automatically. We provide user graphic interface based on web and mobile for your convenience. The module design of the proposed system apply software design modeling based on granular object-oriented considering reuse and extensibility after implementation. Car repairs center and maintenance companies can improve business efficiency, as well as the requested vehicle repair can increase customer confidence.

Research on Mode of after-Sale Reverse Logistics Operation of Auto Maintenance Industry Based on Time Window

The author maintains that, with the quick development of domestic auto industry, the auto maintenance industry is progressing with high speed accordingly. The auto maintenance enterprise are inclined to focus on sales and forward supply chain operation, however, lacking of efficient resource and systematic management into reverse logistics operation, as lead to a few potential risks. In order to avoid and control the risks, the auto maintenance companies need to closely cooperate with channel supply chain partners, meanwhile build up the mode of reverse logistics operation with timing efficiency orientation. This mode consists of eight sub-system modules: organization structure, network planning and layout, reverse logistics operation procedure, time window evaluation mechanism, automatic replenishment system, reverse forecasting system, Kan-ban message system as well as disposal & reuse system. Furthermore, the article makes analysis of the internal operations and external relevance of these eight sub-systems. In recent years, with the overall opening up of road transport market and the rapid growth in domestic economy, the total number of China’s motor vehicles is entering a high-speed growth channel, and “the car goes to the country” policy further promotes the auto industry. Under the situation of quick development, the auto maintenance industry is developing by 10% to 15% each year as a young profession. According to the statistics, there are over 380,000 auto maintenance enterprises in our country at the moment, and various types of auto safety testing stations are built around one after another. The intense competition among auto maintenance manufacturing enterprises does not only focus on product quality, but also on the after-market reverse logistics. According to the statics of Gartner, 70 percent of resale is related with sales service, and 60 percent of resale is related with after market. However, except for few leading business enterprises which have realized the direct influence and value contribution of after-service reverse logistics to profit increase and customer loyalty and take action to pioneer the profit territory in the after-sale reverse logistics, the ‘price war’ is still the main competition method which the majority of enterprises adopt in the market.

Extrinsic And Intrinsic Motivators Of Customer Participation In Compliance Dependent Services

Research on customer participation has focused primarily on the customers participatory role in service creation during the face-to-face service exchange (Bateson 1989; Bowen 1986; Chase 1978; Kelley, Donnelly, and Skinner 1990; Lovelock and Young 1979; and Mills, Chase, and Margulies 1983) however customer involvement often extends beyond the face-to-face exchange. This is especially the case with compliance dependent services (CDS). CDS are services that require customer participation with his or her service delivery role while within the service organization and once away from the service facility to ensure goal attainment and customer satisfaction. Examples of CDS include dental care, weight loss programs, preventive auto maintenance, education, exercise programs, health care programs (diabetes, hypertension), prenatal care, long-term financial planning, debt management programs, and smoking cessation programs.In an early CDS study, Dellande (1999) found motivation to be the most important customer attribute in gaining customer compliance. In this research we further our understanding of the role of motivation by studying the impact of persuasive provider communication, an extrinsic customer motivator, on intrinsic customer compliance motivation. One important characteristic of persuasive messages that influences their effectiveness is how they are framed. Among other factors, effective persuasive messages require comprehension and retention, yielding and behavior in accordance with the message content (McGuire 1966). Specifically, existing research suggests that behavior is affected by the extent to which messages emphasize the potentially negative consequences of failing to engage in a given behavior relative to a message in which the possible beneficial (i.e., positive) consequences of engaging in that action are emphasized (Roberson and Rogers 1988, Tykocinski et. al, 1994). We explore this distinction in the dental compliance service context. We specifically examine how the manner in which written compliance-related communications are framed influences consumers intended compliance behaviors.

The Effects of Service Quality of Auto Maintenance and Repair Services on Customer Satisfaction and Customer Loyalty

The Effects of Service Quality of Auto Maintenance and Repair Services on Customer Satisfaction and Customer Loyalty