A New Powertrain Design Approach for Power-Split Hybrid Tracked Vehicles

Author(s):  
Zhaobo Qin ◽  
Yugong Luo ◽  
Keqiang Li ◽  
Huei Peng

Powertrain design for power-split hybrid vehicles using planetary gears has been widely researched. As proved, the total number of candidate designs is large due to the diversity of connection ways between devices and planetary gears. In this paper, a new powertrain design approach is developed and applied to power-split hybrid tracked vehicles. The three-step approach that uses constraint-based configuration selection, automated dynamic modeling, drivability screening and fuel economy screening can further reduce computation load and rapidly converge to superior designs. A case study is conducted to identify better designs compared with current designs for hybrid tracked dozers.

Energy ◽  
2019 ◽  
Vol 166 ◽  
pp. 929-938 ◽  
Author(s):  
Yalian Yang ◽  
Huanxin Pei ◽  
Xiaosong Hu ◽  
Yonggang Liu ◽  
Cong Hou ◽  
...  

2018 ◽  
Vol 77 (1/2) ◽  
pp. 43
Author(s):  
Zhaobo Qin ◽  
Yugong Luo ◽  
Keqiang Li ◽  
Ziheng Pan ◽  
Huei Peng

2016 ◽  
Vol 65 (6) ◽  
pp. 4790-4801 ◽  
Author(s):  
Xiaowu Zhang ◽  
Shengbo Eben Li ◽  
Huei Peng ◽  
Jing Sun

2018 ◽  
Vol 77 (1/2) ◽  
pp. 43
Author(s):  
Ziheng Pan ◽  
Huei Peng ◽  
Zhaobo Qin ◽  
Yugong Luo ◽  
Keqiang Li

2014 ◽  
Vol 2014 ◽  
pp. 1-19 ◽  
Author(s):  
Aishwarya Panday ◽  
Hari Om Bansal

Presence of an alternative energy source along with the Internal Combustion Engine (ICE) in Hybrid Electric Vehicles (HEVs) appeals for optimal power split between them for minimum fuel consumption and maximum power utilization. Hence HEVs provide better fuel economy compared to ICE based vehicles/conventional vehicle. Energy management strategies are the algorithms that decide the power split between engine and motor in order to improve the fuel economy and optimize the performance of HEVs. This paper describes various energy management strategies available in the literature. A lot of research work has been conducted for energy optimization and the same is extended for Plug-in Hybrid Electric Vehicles (PHEVs). This paper concentrates on the battery powered hybrid vehicles. Numerous methods are introduced in the literature and based on these, several control strategies are proposed. These control strategies are summarized here in a coherent framework. This paper will serve as a ready reference for the researchers working in the area of energy optimization of hybrid vehicles.


Author(s):  
Christiane Gresse Von Wangenheim ◽  
Nathalia Cruz Alves ◽  
Pedro Eurico Rodrigues ◽  
Jean Carlo Hauck

In order to be well-educated citizens in the 21st century, children need to learn computing in school. However, implementing computing education in schools faces several practical problems, such as lack of computing teachers and time in an already overloaded curriculum. A solution can be a multidisciplinary approach, integrating computing education within other subjects in the curriculum. The present study proposes an instructional unit for computing education in social studies classes, with students learning basic computing concepts by programming history related games using Scratch. The instructional unit is developed following an instructional design approach and is applied and evaluated through a case study in four classes (5th and 7th grade) with a total of 105 students at a school in (omitted for submission). Results provide a first indication that the instructional unit enables the learning of basic computing concepts (specifically programming) in an efficient, effective and entertaining way increasing also the interest and motivation of students to learn computing.


Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 207
Author(s):  
Pavel Koštial ◽  
Zora Koštialová Jančíková ◽  
Robert Frischer

These days there are undeniably unique materials that, however, must also meet demanding safety requirements. In the case of vehicles, these are undoubtedly excellent fire protection characteristics. The aim of the work is to experimentally verify the proposed material compositions for long-term heat loads and the effect of thickness, the number of laminating layers (prepregs) as well as structures with different types of cores (primarily honeycomb made of Nomex paper type T722 of different densities, aluminum honeycomb and PET foam) and composite coating based on a glass-reinforced phenolic matrix. The selected materials are suitable candidates for intelligent sandwich structures, usable especially for interior cladding applications in the industry for the production of means of public transport (e.g., train units, trams, buses, hybrid vehicles).


2021 ◽  
Vol 1 ◽  
pp. 581-590
Author(s):  
Alexis JP Jacoby ◽  
Kristel Van Ael

AbstractThe field of design practice and design education is reaching out to address problems that cannot be solved by introducing a single product or service. Complex societal problems such as gender inequality cannot be solved using a traditional problem-solving oriented design approach. The specific characteristics of these problems require new ways of dealing with the dynamics, scale and complexity of the problem.Systemic design is a design approach integrating systems thinking in combination with more traditional design methodologies, addressing complex and systemic problems. This paper reports a systemic design approach in an educational context for the case of academic gender inequality. We show the way the problem was addressed and how design students were invited to take a systemic perspective, provide integrated interventions and take first steps in providing instruments for implementation. We conclude with the learnings from this case study, both on the process and the results.


Author(s):  
Dusan Randjelovic ◽  
Miomir Vasov ◽  
Marko Ignjatovic ◽  
Mirko Stojiljkovic ◽  
Veliborka Bogdanovic

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