scholarly journals Research on the Starting Acceleration Characteristics of a New Mechanical–Electric–Hydraulic Power Coupling Electric Vehicle

Energies ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 6279
Author(s):  
Jian Yang ◽  
Tiezhu Zhang ◽  
Hongxin Zhang ◽  
Jichao Hong ◽  
Zewen Meng
Keyword(s):  
Electric Vehicle ◽  
Structural Characteristics ◽  
Mechanical Energy ◽  
Dynamic Performance ◽  
Operation Mode ◽  
Electrical Energy ◽  
Transmission System ◽  
Drive System ◽  
Power Performance ◽  
Starting Time

To simplify the layout of a purely electric vehicle transmission system and improve the acceleration performance of the vehicle, this paper utilizes the characteristics of the large torque of a hydraulic transmission system and proposes a new mechanical–electric–hydraulic dynamic coupling drive system (MEH-DCDS). It integrates the traditional motor and the swashplate hydraulic pump/motor into one, which can realize the mutual conversion between the mechanical energy, electrical energy, and hydraulic energy. This article explains its working principle and structural characteristics. At the same time, the mathematical model for the key components is established and the operation mode is divided into various types. Based on AMESim software, the article studies the dynamic characteristics of the MEH-DCDS, and finally proposes a method that combines real-time feedback of the accumulator output torque with PID control to complete the system simulation. The results show that the MEH-DCDS vehicle has a starting time of 4.52 s at ignition, and the starting performance is improved by 40.37% compared to that of a pure motor drive system vehicle; after a PID adjustment, the MEH-DCDS vehicle’s starting time is shortened by 1.04 s, and the acceleration performance is improved by 23.01%. The results indicated the feasibility of the system and the power performance was substantially improved. Finally, the system is integrated into the vehicle and the dynamic performance of the MEH-DCDS under cycle conditions is verified by joint simulation. The results show that the vehicle is able to follow the control speed well when the MEH-DCDS is loaded on the vehicle. The state-of-charge (SOC) consumption rate is reduced by 20.33% compared to an electric vehicle, while the MEH-DCDS has an increased range of 45.7 m compared to the EV. This improves the energy efficiency and increases the driving range.

Dynamic Simulation Analysis of Asymmetric Involute Gear Drive System

2012 ◽  
Vol 215-216 ◽  
pp. 974-977 ◽  
Author(s):  
Li Ming Lian ◽  
Gui Min Liu
Keyword(s):  
Dynamic Simulation ◽  
Dynamic Characteristics ◽  
Simulation Analysis ◽  
Dynamic Performance ◽  
Transmission System ◽  
Drive System ◽  
Gear Transmission ◽  
Gear Drive ◽  
Involute Gear ◽  
Gear Transmission System

The dynamic performance of asymmetric involute gear transmission system is analyzed by the MSC.ADAMS software during the paper. By comparative analyzed with the traditional dynamic characteristics of symmetrical involute straight gear transmission, it can be summarized that the asymmetric involute gear transmission system has better vibration characteristics in the course of transmission.

Modeling of Drive System for Trackless Rubber Tyre Electric Vehicle

2013 ◽  
Vol 373-375 ◽  
pp. 43-49
Author(s):  
Chuan Wei Zhang ◽  
Ying Ying Wan ◽  
Rui Fang Zhang ◽  
Zong Hu Xi
Keyword(s):  
Vector Control ◽  
Induction Motor ◽  
Electric Vehicle ◽  
Coal Mine ◽  
Dynamic Performance ◽  
Basic Structure ◽  
Drive System ◽  
Field Oriented Vector Control ◽  
Control System Model ◽  
Ac Induction Motor

Owing to harmful gas emissions and high accident rate of diesel engine in the coal mine trackless auxiliary transport, the spring of trackless rubber tyre electric vehicle powered by the battery pack comes. This paper considers the drive system to improve the performance of the electric vehicle. In order to adapt to the complex environment of coal mine, the analysis of basic structure for trackless rubber tyre electric vehicle was based on the three-phase AC induction motor. After elaborating the vector control theory of induction motor, the field-oriented vector control system model of trackless rubber tyre electric vehicle drive system with induction motor rotor was built in Matlab/Simulink. The simulation shows that the proposed control algorithm permits the drive system to achieve good steady and dynamic performance.

Modeling and Performance Analysis of Switched Reluctance Motor in Electric Vehicles

2014 ◽  
Vol 532 ◽  
pp. 26-30
Author(s):  
Yue Ying Zhu ◽  
Jiang Feng Mou
Keyword(s):  
Performance Analysis ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Dynamic Performance ◽  
Switched Reluctance Motor ◽  
Power Performance ◽  
Nonlinear Dynamic Model ◽  
Switched Reluctance ◽  
Reluctance Motor ◽  
And Performance

The power performance of the Switched Reluctance Motor (SRM) drive used in electric vehicles is very important for improving the dynamic performance of the vehicle and matching the parameters of the vehicle power train. In order to analyses the drive performance of the SRM drive under the electric vehicle, the nonlinear dynamic model of the SRM drive is established in the MATLAB/Simulink environment. Then the vehicle dynamic load model is designed to connect with the SRM drive model, and the performance analysis of the SRM used in the developing electric vehicle is carried out based on power output and equivalent power factor. The analysis results are significant for the design and improvement of the electric vehicle.

scholarly journals Operation Mode Analysis, Parameter Matching and Control Strategy Research for a Novel Range-Extended Electric Vehicle

2014 ◽  
Vol 8 (1) ◽  
pp. 809-819
Author(s):  
Jianjun Hu ◽  
Guoqiang Zu ◽  
Ming Xie ◽  
Jia Chen
Keyword(s):  
Electric Vehicle ◽  
Control Strategy ◽  
Power Transmission ◽  
Dynamic Performance ◽  
Operation Mode ◽  
Mode Analysis ◽  
Transmission Scheme ◽  
Vehicle Operation ◽  
Parameter Matching ◽  
And Control

In order to improve the dynamic performance and endurance mileage of vehicle, operation mode and parameter matching were analyzed and designed on a novel power transmission scheme of range-extended electric vehicle (R-EEV), and the following control strategy of the engine optimization curve was proposed. The simulation was carried out on the Matlab/Simulink software platform and the results showed that the matching parameters and the control strategy of engine were both reasonable, the dynamic performance improved and the vehicle could be operated efficiently.

Study on Parameter Matching of Drive System in Pure Electric Vehicle Based on AVL-CRUISE

2014 ◽  
Vol 644-650 ◽  
pp. 446-450 ◽  
Author(s):  
Jing Sheng Cao
Keyword(s):  
Electric Vehicle ◽  
Drive System ◽  
Transmission Ratio ◽  
Preliminary Design ◽  
Power Performance ◽  
Power Requirement ◽  
On Demand ◽  
Drive Motor ◽  
Parameter Matching ◽  
Avl Cruise

Based on demand for power performance of electric vehicle, preliminary design of power requirement of drive motor and transmission ratio is conducted using method of theoretical calculation, simulation model of whole vehicle is established using AVL-CRUISE software, in order to improve the economy of vehicle, transmission ratio of drive system is optimized. Under the premise of ensuring power performance, economy of vehicle is improved.

Experimental and Simulative Study on Hydraulic Energy Grading Control System in the Process of Wave Energy Conversion

2019 ◽  
Vol 16 (9) ◽  
pp. 3683-3691
Author(s):  
Wen-Bin Lai ◽  
De-Tang Li ◽  
Yong-He Xie
Keyword(s):  
Control System ◽  
Wave Energy ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Transmission System ◽  
Conversion Process ◽  
Wave Condition ◽  
Factors Affecting ◽  
Development And Utilization ◽  
The Stability

In the development and utilization of wave energy, the wave energy is first converted to mechanical energy, then to hydraulic energy, and finally to electrical energy. Due to the instability and randomness of the wave energy, which makes the energy easily fluctuate during the conversion process. In this paper, an oscillating wave power generation device based on hydraulic transmission system is taken as the study object, and the factors affecting the stability of the hydraulic transmission system are studied by model experiment and AMESim simulation. The results of the test show that the stability can be improved by optimizing the parameters in the hydraulic transmission system according to different wave conditions; However, the optimized hydraulic system can only ensure that the wave energy within a certain wave condition can be stably converted; when the wave condition changes greatly, the hydraulic transmission system is still easy to cause fluctuations. In addition, a Hydraulic Energy Grading Control System is proposed, which further improves the stability of the wave energy during the conversion process.

The Matching Design and Performance Simulation of Transmission System Parameters of an Electric Forklift

2013 ◽  
Vol 278-280 ◽  
pp. 328-331
Author(s):  
Sheng Min Cui ◽  
Bo Xu ◽  
Wen Feng Pan ◽  
Xin Kui Liu ◽  
Fang Zhang
Keyword(s):  
Dynamic Performance ◽  
Gear Ratio ◽  
Transmission System ◽  
Simulation Software ◽  
Power Performance ◽  
Performance Simulation ◽  
System Parameters ◽  
Forklift Truck ◽  
And Performance ◽  
Electric Forklift

The calculation method for transmission system parameters matching of an electric forklift powered by zinc-air fuel battery was raised according to the electric forklift dynamic requirements. And the method was introduced by determining parameters of driving motor, battery and gear ratio. A certain domestic electric forklift was used as an example to match its designing transmission system parameters. The power performance is simulated using the simulation software at the same time. The results show that the electric forklift dynamic performance meets the design requirements, and the application of zinc-air fuel cell to electric forklift truck is feasible.

scholarly journals Mechanical transmission system of loader based on hydraulic hybrid technology

2021 ◽  
Vol 25 (6 Part A) ◽  
pp. 4233-4240
Author(s):  
Haifei Wang ◽  
Shimin Yang ◽  
Tan Lu
Keyword(s):  
Power Transmission ◽  
Control Method ◽  
Mechanical Energy ◽  
High Energy ◽  
Transmission System ◽  
Drive System ◽  
Mechanical Transmission ◽  
Fuzzy Pid Control ◽  
Hybrid Technology ◽  
Hydraulic Hybrid

In order to solve the problems of high energy consumption, high noise and pollution gas emission existing in the mechanical transmission system of loader, a research on the mechanical transmission system of loader based on hydraulic hybrid technology is proposed. The mechanical energy and heat energy are generated by the mechanical operation of the loader, which are converted into hydraulic energy and output to the drive system. According to the fast response characteristics and high power density characteristics of the hydraulic power system relative to the thermal engine, the dynamic model of the hydraulic hybrid drive system of the loader is established. The double fuzzy PID control method is used to identify and modify the unknown load and power parameters of the drive system. Through the experiment, it is concluded that the power parameter matching of the transmission system using the hydraulic hybrid technology is more optimized, the application effect is good, and the efficiency of the power transmission system can be maximized.

Dynamic Performance of Gear Transmission System and Modification Optimization of Electric Vehicle Gearbox

2020 ◽  
Vol 103 (sp1) ◽  
pp. 366
Author(s):  
Qingyong Zhang ◽  
Yaru Wang ◽  
Weiping Lin ◽  
Xingjian Wu ◽  
Yongjun Luo
Keyword(s):  
Electric Vehicle ◽  
Dynamic Performance ◽  
Transmission System ◽  
Gear Transmission ◽  
Gear Transmission System

THE PARAMETERS MATCHING OF ELECTRIC VEHICLE DRIVE MOTOR AND DRIVE SYSTEM

2012 ◽  
Vol 11 (02) ◽  
pp. 81-89
Author(s):  
XIAOKAN WAN ◽  
QIONG WANG
Keyword(s):  
Electric Vehicle ◽  
Equilibrium Diagram ◽  
Simulation Software ◽  
Drive System ◽  
Speed Ratio ◽  
Resistance Force ◽  
Power Performance ◽  
System A ◽  
Drive Motor ◽  
Vehicle Simulator

The determination principle of the transmission and the gear number in the electric vehicle driving system are studied in this paper. The results show that the rated power or torque and speed of the motor must reasonably match the parameters of transmission system. A type of electric vehicle is taken as the research object. Two of the five manual transmission speeds gears are calculated and analyzed, which are the equilibrium diagram of the driving force and the driving resistance force between the second gear and the third gear. The single gear-driven scheme of the fixed speed ratio reducer is proposed to replace the heavy mechanical gear reducer. It can reduce the mass of the whole vehicle and increase the driving distance from the theorem. Appling the simulation software Advanced Vehicle Simulator (ADVISOR) of electric vehicle to simulate the vehicle power performance and continued mileage, it verifies that the parameters determination principle and the method of the proposed drive system are correct.

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