Design of Multimode Power-Split Hybrid Vehicles—A Case Study on the Voltec Powertrain System

2016 ◽  
Vol 65 (6) ◽  
pp. 4790-4801 ◽  
Author(s):  
Xiaowu Zhang ◽  
Shengbo Eben Li ◽  
Huei Peng ◽  
Jing Sun
Keyword(s):  
Hybrid Vehicles ◽  
Powertrain System ◽  
Power Split

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

2017 ◽  
Author(s):  
Zhaobo Qin ◽  
Yugong Luo ◽  
Keqiang Li ◽  
Huei Peng
Keyword(s):  
Fuel Economy ◽  
Hybrid Vehicles ◽  
Design Approach ◽  
Planetary Gears ◽  
Tracked Vehicles ◽  
Configuration Selection ◽  
Power Split ◽  
Computation Load ◽  
Powertrain Design

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.

scholarly journals Case Study on Fire Resistance of Sandwiches for Means of Transport

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 207
Author(s):  
Pavel Koštial ◽  
Zora Koštialová Jančíková ◽  
Robert Frischer
Keyword(s):  
Fire Resistance ◽  
Fire Protection ◽  
Public Transport ◽  
Hybrid Vehicles ◽  
Safety Requirements ◽  
Different Types ◽  
Aluminum Honeycomb ◽  
Heat Loads

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).

Fuel economy optimization of power split hybrid vehicles: A rapid dynamic programming approach

Energy ◽  
2019 ◽  
Vol 166 ◽  
pp. 929-938 ◽  
Author(s):  
Yalian Yang ◽  
Huanxin Pei ◽  
Xiaosong Hu ◽  
Yonggang Liu ◽  
Cong Hou ◽  
...  
Keyword(s):  
Dynamic Programming ◽  
Fuel Economy ◽  
Hybrid Vehicles ◽  
Programming Approach ◽  
Dynamic Programming Approach ◽  
Power Split

A New Powertrain System for Electric Hybrid Vehicles

2014 ◽  
Vol 577 ◽  
pp. 408-411
Author(s):  
Ren Guang Wang ◽  
Ming Jun Zhang ◽  
Chuan Long Shi
Keyword(s):  
Electric Vehicle ◽  
Electric Motor ◽  
Planetary Gear ◽  
Hybrid Vehicles ◽  
Regenerative Braking ◽  
Power Train ◽  
Powertrain System ◽  
Electric Driving ◽  
Left And Right ◽  
Different Parts

A new powertrain system was developed for electric vehicle driving application with adoption of one electric motor and one set of planetary gear set. With the control of fork, the sleeve of synchronizer can mesh two different parts on the left and right side; the system can provide pure electric driving, hybrid driving and regenerative braking operation modes to meet vehicle practical conditions. It can reduce both power train structure size and cost with fewer parts.

scholarly journals Control Strategy Development of Driveline Vibration Reduction for Power-Split Hybrid Vehicles

2020 ◽  
Vol 10 (5) ◽  
pp. 1712 ◽  
Author(s):  
Hsiu-Ying Hwang ◽  
Tian-Syung Lan ◽  
Jia-Shiun Chen
Keyword(s):  
Internal Combustion Engine ◽  
Hybrid System ◽  
Electric Motor ◽  
Combustion Engine ◽  
Vibration Reduction ◽  
Internal Combustion ◽  
Hybrid Vehicles ◽  
Strategy Development ◽  
Vibration Source ◽  
Power Split

In order to achieve better performance of fuel consumption in hybrid vehicles, the internal combustion engine is controlled to operate under a better efficient zone and often turned off and on during driving. However, while starting or shifting the driving mode, the instantaneous large torque from the engine or electric motor may occur, which can easily lead to a high vibration of the elastomer on the driveline. This results in decreased comfort. A two-mode power-split hybrid system model with elastomers was established with MATLAB/Simulink. Vibration reduction control strategies, Pause Cancelation strategy (PC), and PID control were developed in this research. When the system detected a large instantaneous torque output on the internal combustion engine or driveline, the electric motor provided corresponding torque to adjust the torque transmitted to the shaft mitigating the vibration. To the research results, in the two-mode power-split hybrid system, PC was able to mitigate the vibration of the engine damper by about 60%. However, the mitigation effect of PID and PC-PID was better than PC, and the vibration was able to converge faster when the instantaneous large torque input was made. In the frequency response, the effect of the PID blocking vibration source came from the elastomer was about 75%, while PC-PID additionally reduced 8% by combining the characteristics of the two control methods.

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