scholarly journals Torque Coordination Control of Hybrid Electric Vehicles Based on Hybrid Dynamical System Theory

Electronics ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 712 ◽  
Author(s):  
Xiaoling Fu ◽  
Qi Zhang ◽  
Chao Wang ◽  
Jiyun Tang
Keyword(s):  
Dynamical System ◽  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Mode Switching ◽  
Dynamical System Theory ◽  
Coordination Control ◽  
Hybrid Dynamical System ◽  
Drive Mode ◽  
Hybrid Electric ◽  
Avl Cruise

In order to reduce the vibration caused by mode switching of hybrid electric vehicles (HEVs) and achieve smooth mode switching, the hybrid input and output automation (HIOA) model of power control system of a parallel HEV is established based on the theory of hybrid dynamical system (HDS). Taking the switching from electric drive mode to hybrid drive mode for example, the torque coordination control is considered, and the performance is compared with the method without the torque coordination by using a rule-based control strategy. The simulation results in AVL Cruise show that, on the premise of ensuring the fuel economy and the emission, the mode switching process becomes smoother with smaller torque fluctuation and better driving comfort by considering the torque coordination.

Design of coordinated control strategy during driving mode switching for parallel hybrid electric vehicles

2018 ◽  
Vol 41 (9) ◽  
pp. 2507-2520
Author(s):  
Jiangtao Fu ◽  
Shuzhong Song ◽  
Zhumu Fu ◽  
Jianwei Ma
Keyword(s):  
Electric Vehicles ◽  
Control Strategy ◽  
Hybrid Electric Vehicles ◽  
Combustion Engine ◽  
Coordinated Control ◽  
Mode Switching ◽  
Vehicle Performance ◽  
Driving Mode ◽  
Response Characteristics ◽  
Hybrid Electric

Hybrid electric vehicles (HEVs) require the power to drive the vehicle via a combination of internal combustion engine (ICE) and electric machine (EM). To improve the drivability, the smooth torque change during the driving mode switching is essential. This task can be achieved by using the coordinated control strategy. This paper presents a coordinated control strategy based on considering the different dynamic response characteristics of the ICE and the EM, which can effectively suppress the torque surge during the driving mode switching processes. The novelty lies in the proposed control is a motor active synchronization control strategy without clutch disengagement based on the mode switching classification. The coordinated control strategy is designed according to the classification of the driving modes. The objective is to minimize torque fluctuation and maintain or improve the driving performance of the vehicle. Results from the computer simulation demonstrate the effectiveness of this approach in reducing the torque surge without sacrificing vehicle performance.

scholarly journals Optimization and performance analysis of the power system in hybrid electric vehicles

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Jianbai Xu
Keyword(s):  
Power System ◽  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Basic Structure ◽  
Original Performance ◽  
Type Selection ◽  
Hybrid Electric ◽  
And Performance ◽  
Avl Cruise ◽  
Selection Of

Hybrid electric vehicles (HEV) are the most industrialized and marketable in electric vehicles. Referring to the basic structure and parameters adopted by PRIUS Hybrid of Toyota, this paper puts forward an optimization scheme of HEV. The parameters and type selection of power components are obtained according to the vehicle's dynamic formula. The optimized hybrid power system is built and simulated through the simulation platform AVL Cruise. Then the obtained economic and dynamic parameters are analyzed and compared with the original performance parameters, verifying that the optimized system has better performance.

EV – Challenges In Going Electric

2018 ◽  
Author(s):  
Umanand L
Keyword(s):  
Mass Transport ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Research Activity ◽  
Considerable Research ◽  
Hybrid Electric

This article presents a frank and open opinion on the challenges that will be faced in moving towards an electric mass transport ecosystem. World over there is considerable research activity on electric vehicles and hybrid electric vehicles. There seems to be a global effort to move from an ICE driven ecosystem to electric vehicle ecosystem. There is no simple means to make this transition. This road is filled with hurdles and challenges. This paper poses and discusses these challenges and possible solutions for enabling EVs.

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