System Dynamics Analysis and Mode-Switch Control for a 3-Mode Range-Extender Electric Vehicle

2013 ◽  
Vol 459 ◽  
pp. 361-367 ◽  
Author(s):  
Yi Hsuan Hung ◽  
Chien Hsun Wu ◽  
Chun Ying Lin ◽  
Yu Ming Tung
Keyword(s):  
System Dynamics ◽  
Electric Vehicle ◽  
System Modeling ◽  
Control Unit ◽  
Spark Ignition Engine ◽  
Mode Switch ◽  
Rule Based ◽  
Control Rules ◽  
Range Extender ◽  
Switch Control

This paper studies the system modeling and mode-switch control for a novel 3-mode (serial/parallel/pure electric) range-extender electric vehicle (REEV). The REEV is modeled with low-order dynamics of 8 subsystems: the driving pattern, drivers behavior, lithium batteries, a spark-ignition engine, a traction motor, a generator, a 6-speed transmission, and a longitudinal vehicle dynamics. Dynamics of the REEV is the integration of above subsystems. To properly evaluate the system performance of the REEV, a rule-based mode-switch control rule is designed with 7 operation modes (System Ready, EV, Serial, Coast Down, Coast-Down Regen., Idle Regen., Parallel). By applying the control rules for the 3-mode REEV, the vehicle can properly operate. Simulation is conducted on the Matlab/Simulink platform. The results show that this study details the system dynamics of subsystems and the vehicle. Meanwhile the rule-based control strategy governs the subsystems well. The developed simulator can be utilized for specification designs of real vehicles and for vehicle control unit designs in the near future.

Development of PROTON Electric Vehicle Control Unit (eVCU) Using State Machine Deterministic Rule-Based Approach

2014 ◽  
Vol 663 ◽  
pp. 532-538
Author(s):  
Nor Aziah Mohd Azubir ◽  
Mohd. Khair Hassan ◽  
Hairi Zamzuri ◽  
Saiful Amri Mazlan
Keyword(s):  
Electric Vehicle ◽  
Control Strategy ◽  
Supervisory Control ◽  
World View ◽  
Control Unit ◽  
State Machine ◽  
Optimum Level ◽  
Rule Based ◽  
High Level ◽  
Power And Energy

There are many types of Electric Vehicle (EV) applied in automotive industry. It can be hybridization or electrification vehicle. Battery Electric Vehicle (BEV) also called as fully electric vehicle using batteries as the only source and an electric motor as a traction motor to move the vehicle. In a world view of BEV, it is still has circumstances that would strand the BEV to have huge commercialization due to range anxiety. This paper is discussing about an electrification vehicle power and energy management (PEM) strategy. PEM strategy has two layer control strategies that consist of low level component control and high level supervisory control. Management and control strategy in BEV is carefully designed due to heavy loads consumption from Propulsion Electrical Load (PEL) and Non Propulsion Electrical Loads (NoPEL) with a single energy source. This is to ensure that power and energy is managed at optimum level that will give some extension of wider kilometer of the vehicle. The BEV performance is typically controlled by high level supervisory control algorithm using event-based condition using state machine deterministic rule-based method. More than one drive mode to be determined in this paper as part of control strategy to get an optimal PEM performance.

scholarly journals The Effects of Use of the Range Extender in a Small Commercial Electric Vehicle

2020 ◽  
Vol 4 (1) ◽  
pp. 5-19
Author(s):  
Marcin Noga ◽  
Paweł Gorczyca ◽  
Radosław Hebda
Keyword(s):  
Electric Vehicle ◽  
Conversion Efficiency ◽  
Exhaust System ◽  
Spark Ignition Engine ◽  
Maximum Output ◽  
Fuel Conversion ◽  
Efficient Operation ◽  
Fuel Ratio ◽  
Range Extender ◽  
Three Way Catalyst

Research on the effects of the use of the range extender developed for a small commercial electric vehicle was presented in this paper. The range extender has a maximum output power of 2.65 kW. The developed auxiliary power unit consists of a three-phase generator propelled by an industrial low-power spark-ignition engine. The exhaust system was improved using a more efficient muffler. The implemented motorcycle muffler has a three-way catalyst (TWC) integrated inside. The use of the more advanced exhaust system aimed at reducing noise and exhaust emissions of the range extender. The efficient operation of the three-way catalytic converter requires a stoichiometric air-fuel ratio. To enable desired air-fuel ratio a fuel system was modified. In the first stage of research, the effects of improvements of the exhaust system on the range extender noise emissions were quantified. The next step covered the research of the fuel conversion efficiency, the exhaust gas composition, and the efficiency of conversion of the three-way catalyst. A significant decrease of noise and toxic gas emissions and an increase in the fuel conversion efficiency were revealed. The mentioned research was conducted in stationary conditions. After that, in the final part research of the running vehicle with the range extender on was made. The beneficial outcome of these tests enabled the development of a set of rules of the control of the range extender.

ELECTRIC VEHICLE BATTERY RECYCLING: SYSTEM DYNAMICS GAME BASED ANALYSIS FOR THE INFLUENCING FACTORS

2019 ◽  
Vol 18 (5) ◽  
pp. 1123-1136 ◽  
Author(s):  
Dong Mu ◽  
Xin Li ◽  
Jianbang Du ◽  
Yongwei Cheng ◽  
Salman Hanif ◽  
...  
Keyword(s):  
System Dynamics ◽  
Electric Vehicle ◽  
Influencing Factors ◽  
Recycling System ◽  
Battery Recycling ◽  
Electric Vehicle Battery
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