Research on Compound Coordinated Control for A Power-split Hybrid Electric Vehicle Based on Compensation of Non-ideal Communication Network

2020 ◽  
pp. 1-1
Author(s):  
Jiajia Wang ◽  
Yingfeng Cai ◽  
Long Chen ◽  
Dehua Shi ◽  
Shaohua Wang ◽  
...  
Keyword(s):  
Communication Network ◽  
Electric Vehicle ◽  
Hybrid Electric Vehicle ◽  
Coordinated Control ◽  
Power Split ◽  
Hybrid Electric

Coordinated Control Strategy in Engine Starting Process for a Novel Compound Power-Split Hybrid Electric Vehicle

2018 ◽  
Author(s):  
Dengfeng Shen ◽  
Clemens Gühmann ◽  
Tong Zhang ◽  
Xizhen Dong
Keyword(s):  
Electric Vehicle ◽  
Control Strategy ◽  
Hybrid Electric Vehicle ◽  
Fuel Injection ◽  
Coordinated Control ◽  
Engine Torque ◽  
Power Split ◽  
Hybrid Electric ◽  
Starting Process ◽  
Clutch Torque

Due to the direct connection between the engine and the compound power split hybrid transmission (CPSHT) in hybrid electric vehicle (HEV), engine ripple torque (ERT) can result in obvious jerks in engine starting process (ESP). In order to improve the riding comfort, two wet clutches are mounted in this novel CPSHT. This research developed a new coordinated control strategy and its effectiveness was verified in simulation. Firstly, the mechanical and hydraulic parts of the CPSHT were introduced, and the riding comfort problem during ESP in primary design was illustrated. Secondly, the dynamic plant model including ERT, driveline model and clutch torque was deduced. Thirdly, a coordinated control strategy was designed to determine the target engine torque, motor torque, clutch torque and the moment of fuel injection. A Kalman filter based clutch torque estimator was applied with the help of electric motors information. The simulation result indicates that proposed coordinated control strategy can indeed suppress vehicle jerk and improve the riding comfort in ESP.

Model Predictive Coordinated Control for Dual-Mode Power-Split Hybrid Electric Vehicle

2018 ◽  
Vol 19 (2) ◽  
pp. 345-358 ◽  
Author(s):  
Yunlong Qi ◽  
Changle Xiang ◽  
Weida Wang ◽  
Boxuan Wen ◽  
Feng Ding
Keyword(s):  
Electric Vehicle ◽  
Hybrid Electric Vehicle ◽  
Coordinated Control ◽  
Dual Mode ◽  
Power Split ◽  
Hybrid Electric

scholarly journals Dynamic Torque Coordinated Control Considering Engine Starting Conditions for a Power-Split Plug-in Hybrid Electric Vehicle

2021 ◽  
Vol 11 (5) ◽  
pp. 2085
Author(s):  
Yanzhao Su ◽  
Minghui Hu ◽  
Jin Huang ◽  
Datong Qin ◽  
Chunyun Fu ◽  
...  
Keyword(s):  
Electric Vehicle ◽  
Hybrid Electric Vehicle ◽  
Control Method ◽  
Feedforward Control ◽  
Coordinated Control ◽  
Power Split ◽  
Before And After ◽  
Starting Conditions ◽  
Hybrid Electric ◽  
The Impact

For a power-split plug-in hybrid electric vehicle (PS-PHEV), the control system cannot effectively reduce jerks under some engine-starting conditions due to the pulsating torque of the engine, elastic characteristics of the transmission, battery power limitations, and the limitation of the maximum torque of the motor. To solve this problem, a dynamic torque-coordinated control method considering engine starting conditions (DTCC-ESC) is proposed in this paper. The proposed DTCC-ESC mainly includes three parts: the engine segment active control before and after engine ignition to minimize the impact of the engine ripple torque on the shocks of the powertrain system; the feedforward control of the engine starting conditions and the feedback control of the engine’s optimal target speed; and the active damping feedback compensation control for system resonance to reduce system vibrations. The results show that the proposed DTCC-ESC can effectively improve driving comfort under different engine starting conditions.

scholarly journals Research on operating domain optimization of power split hybrid electric vehicle based on global bifurcation and chaos threshold

2020 ◽  
Vol 12 (9) ◽  
pp. 168781402095460
Author(s):  
Dou Lei ◽  
Cai Yingfeng ◽  
Chen Long ◽  
Shi Dehua ◽  
Hu Donghai ◽  
...  
Keyword(s):  
Electric Vehicle ◽  
Hybrid Electric Vehicle ◽  
Electromechanical Coupling ◽  
Transmission System ◽  
Optimization Scheme ◽  
Domain Optimization ◽  
Driving Mode ◽  
Power Split ◽  
Non Linear ◽  
Hybrid Electric

The power-split hybrid electric vehicle (PS-HEV) has multiple working modes to maintain high operation efficiency according to different conditions. The main modes involved in the vehicle driving process are pure electric mode and the hybrid driving mode. Because the electromechanical coupling problem is involved in the above two working modes, the transmission system exhibits strong non-linear characteristics. If the operation range of the engine and motor are unreasonable, the rotor system will vibrate and become instability. In this paper, the non-linear dynamic equations of the electromechanical coupling of the transmission system are established for electric driving mode and hybrid driving mode. The closed-homoclinic phase trajectory equation at the center point of the disturbance-free Hamilton system is determined. The chaotic thresholds for the pure electric and hybrid driving modes are derived through the Melnikov’s method to obtain the optimal working domain of the engine and motor. Finally, numerical simulation analysis is conducted to verify the feasibility of the work domain optimization scheme. Simulation results show that the proposed engine and motor working area optimization scheme can effectively avoid the homoclinic bifurcation in the PS-HEV during the driving process and prevent the vehicle from entering the chaotic state.

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