scholarly journals Fuel Control Systems for Planetary Transmission Vehicles: A Contribution to the LPG-fueled Vehicles Community

2021 ◽  
Vol 1 (1) ◽  
pp. 14-21
Author(s):  
Suroto Munahar ◽  
Bagiyo Condro Purnomo ◽  
Hasan Köten

The bi-fuel system vehicle (gasoline/LPG) has been developed for a long time because it has the ability to switch fuels, both built as an original equipment manufacturer (OEM) or as a modified vehicle. However, on vehicles with planetary automatic transmissions, additional control systems are needed to produce optimal performance, both on gasoline and LPG operations, especially on uphill roads. Old vehicles with planetary automatic transmissions are not equipped with road slope angle sensors, so on uphill roads and the driver has not mastered road conditions, the engine tends to stop suddenly. Therefore, this study aims to develop a fuel control system (LPG operation) on a planetary automatic transmission to control gear shifts based on the level of the road slope. A simulation with MATLAB Simulink we used to create a control system, with objective function and constraint defined. As a result, the control system can recognize the level of the road slope to control the speed gear shift. This control system is promising and reliable to be implemented in real conditions.

2015 ◽  
Vol 743 ◽  
pp. 11-16
Author(s):  
S.H. Tang ◽  
Yan Fang Liu ◽  
Xiao Han

As a significant control component of vehicles, automatic transmissions should have failure protection function. The failure protection function partly is determined by the hydraulic control system. However traditional design could not cover all of failures, and there is no general design method. A design method is proposed for designing the shift control oil circuit of the hydraulic control system with the failure protection function. . The design method is applied to optimize the hydraulic control system of a six-speed automatic transmission. The function of the optimized hydraulic control system is confirmed by the dynamic simulation. The results show that the design method can simplify the hydraulic control system without losing any original functions. The proposed design method is proved to be suitable for all kinds of hydraulic control systems of automatic transmissions.


Author(s):  
Hui Jin ◽  
Anlin Ge

The vehicle longitudinal dynamics was investigated and a slope recognition method based on reference tables was proposed, to overcome the problems encountered when a vehicle with conventional automatic transmission travels on slopes. Shift strategies on uphill and downhill slopes were also developed. The intelligent slope shift strategy is significant because it can improve the performance on slopes of not only conventional automatic transmissions, but also many other vehicle control systems, such as engine management systems, electric power steering, and shock absorbers.


2015 ◽  
Vol 727-728 ◽  
pp. 778-780
Author(s):  
Fei Lao ◽  
Guo Xin Li

For the design of storagebox control system supplied to fixed customers , this paper presents the designideas that the storage box controlsystem based on fingerprint identification.The core design philosophy is basedon the PC as the core, connecting the fingerprint recognition module and thepower locks array control systems through two com ports. through the smalldatabase system on the PC, it can manage the two moduls effectively.When theuser's fingerprint match, the fingerprint identification module returns to thePC a finger signal,the small datebase will correct the electricity lock of theusers,PC then transmit this signal to MCU,then it starts the appropriateelectricity lock.After a long time operating ,this system can works much stableand reliable.


Author(s):  
Anna Smyshlyaeva ◽  
Kseniya Reznikova ◽  
Denis Savchenko

In the contemporary world, due to the rapid growth of cities and the population as a whole, the number of personal vehicles is increasing. But at the same time, the infrastructure, especially in the old areas of towns, is not being modernized, and in such areas parking is not provided at all or is not designed for an ever-increasing number of cars. Due to the lack of parking spaces, drivers often leave their cars on the edge of the roadway, thereby reducing even more the already small capacity of the road. Also, especially in large cities, a common reason for such parking is the high cost of parking, low level of service and security, and the long time of the vehicle parking process itself. This article examines the experience of foreign countries in solving the problem of parking along the roadway: what technologies are used to create parking lots, what tasks are set by designers to achieve the best result and improve the urban environment. The authors cite the works of Russian companies engaged in the design of parking lots, and note what tasks Russian companies set themselves. The differences between the approaches of Russian designers and their foreign colleagues to the problem of parking are also presented. The article analyzes the locations of objects that Russian design companies have worked on, the situation with parking in large cities and in smaller ones. Taking into account the peculiarities of parking design in Russia, the article suggests a way to improve the situation with spontaneous parking – the introduction of automated control systems. The advantages of implementing automated systems both on the part of the car owner and on the part of the parking lot owner are described.


Author(s):  
Gurkan Erdogan ◽  
Francesco Borrelli ◽  
Riccardo Tebano ◽  
Giorgio Audisio ◽  
Giulia Lori ◽  
...  

Vehicles are usually equipped with driver assistance systems such as anti-lock brake, traction control and lateral stability control systems. Although the forces maneuvering a vehicle are generated inside the tire contact patch, state of the art control systems have no feedback directly from the tires. Instead, observers based on indirect measurements are employed to close the control loop. Wireless sensors embedded inside the tires can be used to extract valuable information from the tire deformations such as forces. These forces can be used to develop adaptive stability control systems which update their parameters in real-time depending on the road and vehicle conditions. Furthermore, controllers can selectively regulate tire forces by changing brake/drive torques at each tire. This paper examines the integration of accelerometer based tire sensors with lateral stability control system (ESP). Its aim is to present the main components of a smart-tire enabled ESP and a preliminary study on potential performance improvements.


2020 ◽  
Vol 5 (1) ◽  
pp. 101-106
Author(s):  
Doni Putra Utama

This research is a causality study with the title "Effect of Government Internal Control Systems and Employee Competence on the Performance of Government Agencies in Karimun Regency." The purpose of this study was to determine the effect of the implementation of the Government's Internal Control System on the performance of Karimun Regency government agencies and to determine the effect of employee competence on the performance of Karimun Regency government agencies. Data collection using a questionnaire where the questionnaire contained questions about the Government's Internal Control System, employee competencies and agency performance. Data were tested using multiple linear regression statistical tests. Based on the results of the study, it can be concluded that the governmental internal control system has a significant positive effect on Government Agency Performance with the results of statistical tests that show a sig value of 0.016 <0.05 (alpha 5%). Employee Competency has a significant positive effect on Government Performance with the results of statistical tests showing a sig value of 0,000.


In an epoch when environmental issues make the headlines, this is a work that goes beyond the everyday. Ecologies as diverse as the Himalayas and the Indian Ocean coast, the Negev desert and the former military bases of Vietnam, or the Namib desert and the east African savannah all have in common a long-time human presence and the many ways people have modified nature. With research in six Asian and African countries, the authors come together to ask how and why human impacts on nature have grown in scale and pace from a long pre-history. The chapters in this volume illumine specific patterns and responses across time, going beyond an overt centring of the European experience. The tapestry of life and the human reshaping of environments evoke both concern and hope, making it vital to understand when, why, and how we came to this particular turn in the road. Eschewing easy labels and questioning eurocentrism in today’s climate vocabulary, this is a volume that will stimulate rethinking among scholars and citizens alike.


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