Gear Ratio Optimization of a Multifunctional Walker Robot Using Dual-Motor Actuation

The driving range of electric vehicles is less than traditional vehicles due to the restriction of energy storage. It is raising the efficiency of each power component that is one of increasing electric vehicle driving range methods. A particle swarm optimization is used to optimize transmission gear ratio on established electric vehicle power component models. A simulation that simulates the energy consumption of vehicle after gear ratio optimization is given to compare with the actual energy consumption data of the vehicle before gear ratio optimization. The results show that the energy consumption and driving range of the latter are better than the former therefore this optimization is valid.

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A Central Differential Gear Ratio Optimization of a 6×6 Articulated Dump Truck

SAE International Journal of Commercial Vehicles ◽

10.4271/2015-01-2787 ◽

2015 ◽

Vol 8 (2) ◽

pp. 467-478

Author(s):

Vladimir V. Vantsevich ◽

Dennis R. Murphy

Keyword(s):

Gear Ratio ◽

Dump Truck ◽

Differential Gear ◽

Ratio Optimization

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Gear ratio optimization and shift control of 2-speed I-AMT in electric vehicle

Mechanical Systems and Signal Processing ◽

10.1016/j.ymssp.2014.05.045 ◽

2015 ◽

Vol 50-51 ◽

pp. 615-631 ◽

Cited By ~ 96

Author(s):

Bingzhao Gao ◽

Qiong Liang ◽

Yu Xiang ◽

Lulu Guo ◽

Hong Chen

Keyword(s):

Electric Vehicle ◽

Gear Ratio ◽

Shift Control ◽

Ratio Optimization

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Gear Ratio Optimization of a Multi-Speed Transmission for Electric Dump Truck Operating on the Structure Route

Energies ◽

10.3390/en11061324 ◽

2018 ◽

Vol 11 (6) ◽

pp. 1324 ◽

Cited By ~ 6

Author(s):

Senqi Tan ◽

Jue Yang ◽

Xinxin Zhao ◽

Tingting Hai ◽

Wenming Zhang

Keyword(s):

Gear Ratio ◽

Dump Truck ◽

Ratio Optimization

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Gear Transmission Density Maximization

Volume 8: 11th International Power Transmission and Gearing Conference; 13th International Conference on Advanced Vehicle and Tire Technologies ◽

10.1115/detc2011-47021 ◽

2011 ◽

Cited By ~ 1

Author(s):

Alexander L. Kapelevich ◽

Viacheslav M. Ananiev

Keyword(s):

Gear Tooth ◽

Load Capacity ◽

Gear Ratio ◽

Gear Transmission ◽

Gear Trains ◽

Reduced Costs ◽

Gear Drives ◽

Internal Gear ◽

Ratio Optimization ◽

Volume Functions

Maximization of the gear transmission density presents an important task. It allows to increase the output torque within given dimensional constrains that is critical, for instance, in racing gearboxes, or to reduce size and weight of aerospace gear drives. It can also lead to reduced costs for automotive and consumer product gear trains, etc. There are several ways to increase gear drive load capacity, including advanced design, materials, and technologies. This paper presents an approach that allows optimizing gearbox kinematic arrangement and gear tooth geometry to achieve high gear transmission density. It introduces dimensionless gearbox volume functions, which can be minimized by the internal gear ratio optimization. Different gearbox arrangements are analyzed to define a minimum of the volume functions. Application of the asymmetric gear tooth profiles power density maximization is also considered.

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