Hybrid System Based Analytical Approach for Optimal Gear Shifting Schedule Design

2015 ◽  
Author(s):  
Chaozhe R. He ◽  
Wubing B. Qin ◽  
Necmiye Ozay ◽  
Gábor Orosz
Keyword(s):  
Hybrid System ◽  
System Approach ◽  
Analytical Approach ◽  
Pi Controller ◽  
Longitudinal Motion ◽  
Scheduling Problem ◽  
Systematic Design ◽  
Shifting Strategy ◽  
Schedule Design

In this paper, we present a systematic design for gear shifting using a hybrid system approach. The longitudinal motion of the vehicle is regulated by a PI-controller that determines the required axle torque. The gear scheduling problem is modeled as a hybrid system and an optimization-based gear shifting strategy is introduced, which guarantees that the propulsion requirements are delivered while minimizing fuel consumption. The resulting dynamics is proved to be stable theoretically. In a case study, we compare our strategy with a standard approach used in the industry and demonstrate the advantages of our design for class 8 trucks.

Optimal Gear Shift Schedule Design for Automated Vehicles: Hybrid System Based Analytical Approach

2018 ◽  
Vol 26 (6) ◽  
pp. 2078-2090 ◽  
Author(s):  
Chaozhe R. He ◽  
Wubing B. Qin ◽  
Necmiye Ozay ◽  
Gabor Orosz
Keyword(s):  
Hybrid System ◽  
Analytical Approach ◽  
Automated Vehicles ◽  
Gear Shift ◽  
Shift Schedule ◽  
Schedule Design

Hybrid System Approach to On-Line Testing of Mixed Signal VLSI Circuits: A Case Study of DC-DC Buck Converters

2008 ◽  
Vol 41 (2) ◽  
pp. 2180-2187
Author(s):  
S Biswas ◽  
S Samanta ◽  
D Sarkar ◽  
S Mukhopadhyay ◽  
A Patra
Keyword(s):  
Hybrid System ◽  
System Approach ◽  
Vlsi Circuits ◽  
Buck Converters ◽  
Mixed Signal ◽  
On Line

Pengaruh Modal Sosial Terhadap Perkembangan Pariwisata di Kepulauan Riau

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Nurul Nadjmi
Keyword(s):  
Social Capital ◽  
Qualitative Research ◽  
System Approach ◽  
Research Method ◽  
Analytic Approach ◽  
Community Groups ◽  
Study Strategy ◽  
Direct Observations ◽  
Descriptive Qualitative

Kepulauan Riau merupakan provinsi yang terdiri dari beberapa pulau diantaranya Pulau Batam, Pulau Bintan dan Pulau Karimun. Modal sosial merupakan serangkaian nilai dan norma informal yang dimiliki oleh kelompok masyarat dalam membagun kerjasamanya. Lingkup penelitian pada pembahasan ini adalah terfokus pada pengaruh modal sosial terhadap perkembangan pariwisata di Kepulauan Riau dalam hal ini Pulau Batam, Pulau Bintan, dan Pulau Karimun. Metode penelitian yang digunakan dalam penelitian ini adalah penelitian deskriptif kualitatif. Penelitian ini dikondisikan sebagai penelitian kualitatif melalui strategi studi kasus. Sistem pendekatan yang digunakan juga merupakan pendekatan deskriptif analitik. Melakukan pengamatan langsung, mengumpulkan data-data kemudian menghubungkannya dengan kajian teori yang digunakan. Lokus penelitian ini terdapat di Kepulauan Riau dengan melihat pengaruh modal sosial pada perkembangan pariwisata di ketiga pulau yaitu Pulau Batam, Pulau Bintan dan Pulau Karimun. Berdasarkan hasil survey yang saya lakukan di Kepulauan Riau, terutama pada ketiga pulau yaitu Pulau Batam, Pulau Bintan, dan Pulau Karimun, dari ketiga pulau tersebut ternyata pada Pulau Karimun perkembangan pariwisatanya tidak terlalu berkembang karena masyarakat yang tidak menerima adanya wisatawan terutama wisatawan mancanegara. Riau Islands is a province consisting of several islands including Batam Island, Bintan Island and Karimun Island. Social capital is a set of informal values ​​and norms that are owned by community groups in building cooperation. The scope of research in this discussion is focused on the influence of social capital on the development of tourism in the Riau Islands, in this case Batam Island, Bintan Island, and Karimun Island. The research method used in this research is descriptive qualitative research. This research is conditioned as qualitative research through a case study strategy. The system approach used is also a descriptive analytic approach. Make direct observations, collect data and then relate it to the study of the theories used. The locus of this research is in the Riau Islands by looking at the influence of social capital on the development of tourism in the three islands, namely Batam Island, Bintan Island and Karimun Island. Based on the results of a survey I conducted in the Riau Islands, especially on the three islands, namely Batam Island, Bintan Island, and Karimun Island, of the three islands, it turns out that on Karimun Island the development of tourism is not very developed because people do not accept tourists, especially foreign tourists.

scholarly journals Hybrid Seven-bar Press Mechanism

2018 ◽  
Vol 12 (3) ◽  
pp. 181-187
Author(s):  
M. Erkan Kütük ◽  
L. Canan Dülger
Keyword(s):  
Genetic Algorithm ◽  
Objective Function ◽  
Design Optimization ◽  
Hybrid System ◽  
Degrees Of Freedom ◽  
Dimensional Synthesis ◽  
Design Variables ◽  
Optimization Study ◽  
Metal Stamping

An optimization study with kinetostatic analysis is performed on hybrid seven-bar press mechanism. This study is based on previous studies performed on planar hybrid seven-bar linkage. Dimensional synthesis is performed, and optimum link lengths for the mechanism are found. Optimization study is performed by using genetic algorithm (GA). Genetic Algorithm Toolbox is used with Optimization Toolbox in MATLAB®. The design variables and the constraints are used during design optimization. The objective function is determined and eight precision points are used. A seven-bar linkage system with two degrees of freedom is chosen as an example. Metal stamping operation with a dwell is taken as the case study. Having completed optimization, the kinetostatic analysis is performed. All forces on the links and the crank torques are calculated on the hybrid system with the optimized link lengths

scholarly journals Design Optimization of Explosion-Resistant System Consisting of Steel Slab and CFRP Frame

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2589
Author(s):  
Jung J. Kim
Keyword(s):  
Hybrid System ◽  
Impact Load ◽  
Load Condition ◽  
High Strength ◽  
Dynamic Responses ◽  
Elastoplastic Behavior ◽  
Reinforced Polymer ◽  
Steel Slab ◽  
Strength Material

This study presents an explosion-resistant hybrid system containing a steel slab and a carbon fiber-reinforced polymer (CFRP) frame. CFRP, which is a high-strength material, acts as an impact reflection part. Steel slab, which is a high-ductility material, plays a role as an impact energy absorption part. Based on the elastoplastic behavior of steel, a numerical model is proposed to simulate the dynamic responses of the hybrid system under the air pressure from an explosion. Based on this, a case study is conducted to analyze and identify the optimal design of the proposed hybrid system, which is subjected to an impact load condition. The observations from the case study show the optimal thicknesses of 8.2 and 7 mm for a steel slab and a ϕ100 mm CFRP pipe for the hybrid system, respectively. In addition, the ability of the proposed hybrid system to resist an uncertain explosion is demonstrated in the case study based on the reliability methodology.

A comparison of sizing methods for a long-term renewable hybrid system. Case study: Galapagos Islands 2031

2021 ◽  
Author(s):  
A. Cano ◽  
Paul Arévalo ◽  
F. Jurado
Keyword(s):  
Hybrid System ◽  
Power Supply ◽  
Galapagos Islands ◽  
Galápagos Islands

This research compared different sizing methods to improve the current autonomous hybrid system in the Galapagos Islands in 2031, analyzing the loss of power supply probability (LPSP).

scholarly journals Design of a Stand-Alone Energy Hybrid System for a Makeshift Health Care Center: A Case Study

2021 ◽  
pp. 102346
Author(s):  
Tamal Chowdhury ◽  
Hemal Chowdhury ◽  
Samiul Hasan ◽  
Md Salman Rahman ◽  
Muhammad Mostafa Kamal Bhuiya ◽  
...  
Keyword(s):  
Health Care ◽  
Hybrid System ◽  
Care Center ◽  
Health Care Center

scholarly journals Model-Based Control Design and Integration of Cyberphysical Systems: An Adaptive Cruise Control Case Study

2013 ◽  
Vol 2013 ◽  
pp. 1-15 ◽  
Author(s):  
Emeka Eyisi ◽  
Zhenkai Zhang ◽  
Xenofon Koutsoukos ◽  
Joseph Porter ◽  
Gabor Karsai ◽  
...  
Keyword(s):  
Adaptive Cruise Control ◽  
Control Design ◽  
Systematic Design ◽  
Cyberphysical Systems ◽  
Cruise Control ◽  
Automotive Control ◽  
Experimental Platform ◽  
Complex Interactions ◽  
Systematic Methodology

The systematic design of automotive control applications is a challenging problem due to lack of understanding of the complex and tight interactions that often manifest during the integration of components from the control design phase with the components from software generation and deployment on actual platform/network. In order to address this challenge, we present a systematic methodology and a toolchain using well-defined models to integrate components from various design phases with specific emphasis on restricting the complex interactions that manifest during integration such as timing, deployment, and quantization. We present an experimental platform for the evaluation and testing of the design process. The approach is applied to the development of an adaptive cruise control, and we present experimental results that demonstrate the efficacy of the approach.

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