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

Research demonstrated that the application of a multi-speed transmission could improve the dynamic and economic performance of electric vehicles. This paper deals with a novel multi-speed transmission for the electric dump truck (EDT) operating on the structure route (SR), which has a definite starting point and end point without complex traffic conditions. To optimize the gear ratio and shift schedule to reduce energy consumption in such conditions, the mathematical model of the transmission and the dynamic model of the EDT are initially required. Following this, the shift schedule is presented according to the motor efficiency map. After that, the gear ratio optimization is carried out by a particle swarm optimization (PSO) algorithm. Moreover, the proposed EDT is compared with an EDT with a single-speed transmission. The simulation results show that the energy consumption is reduced by 6.1%.

[1]  Kwangseok Oh,et al.  Gear ratio and shift schedule optimization of wheel loader transmission for performance and energy efficiency , 2016 .

[2]  Aldo Sorniotti,et al.  A novel clutchless multiple-speed transmission for electric axles , 2013 .

[3]  Ahmet Kahraman,et al.  Planetary gear train dynamics , 1994 .

[4]  K. Tsang,et al.  Identification and modelling of Lithium ion battery , 2010 .

[5]  Ting-Yu Chen,et al.  On the improvements of the particle swarm optimization algorithm , 2010, Adv. Eng. Softw..

[6]  Guo-qiang Wang,et al.  Aerodynamic Characteristics about Mining Dump Truck and the Improvement of Head Shape , 2008 .

[7]  Malcolm Powell,et al.  Benchmarking comminution energy consumption for the processing of copper and gold ores , 2014 .

[8]  Paul D. Walker,et al.  A comparative study energy consumption and costs of battery electric vehicle transmissions , 2016 .

[9]  Santanu Bandyopadhyay,et al.  Benchmarking energy consumption for dump trucks in mines , 2014 .

[10]  Zuomin Dong,et al.  Impacts of Two-Speed Gearbox on Electric Vehicle's Fuel Economy and Performance , 2013 .

[11]  Nong Zhang,et al.  Investigation of a Novel Coaxial Power-Split Hybrid Powertrain for Mining Trucks , 2018 .

[12]  Nong Zhang,et al.  Powertrain dynamics and control of a two speed dual clutch transmission for electric vehicles , 2017 .

[13]  M. A. Abido,et al.  Optimal power flow using particle swarm optimization , 2002 .

[14]  Jorge Angeles,et al.  Design, modelling and estimation of a novel modular multi-speed transmission system for electric vehicles , 2017 .

[15]  Hong Chen,et al.  Gear ratio optimization and shift control of 2-speed I-AMT in electric vehicle , 2015 .

[16]  Ahmet Kahraman,et al.  Dynamic Modelling of Planetary Gears of Automatic Transmissions , 2008 .

[17]  Aldo Sorniotti,et al.  Selection of the Optimal Gearbox Layout for an Electric Vehicle , 2011 .

[18]  Valerie H. Johnson,et al.  Battery performance models in ADVISOR , 2002 .

[19]  Junqiang Xi,et al.  Optimal speed synchronization control for clutchless AMT systems in electric vehicles with preview actions , 2014, 2014 American Control Conference.

[20]  Srithar Rajoo,et al.  A review of Battery Electric Vehicle technology and readiness levels , 2017 .

[21]  Antoni Szumanowski,et al.  Battery Management System Based on Battery Nonlinear Dynamics Modeling , 2008, IEEE Transactions on Vehicular Technology.

[22]  Arunkumar Jayakumar,et al.  Review of prospects for adoption of fuel cell electric vehicles in New Zealand , 2017 .

[23]  Jorge Angeles,et al.  Design and optimization of a drivetrain with two-speed transmission for electric delivery step van , 2014, 2014 IEEE International Electric Vehicle Conference (IEVC).

[24]  Xing Zhang,et al.  Powertrain architectures of electrified vehicles: Review, classification and comparison , 2015, J. Frankl. Inst..