The torque pulsation analysis of a starter generator with concentrated windings based hybrid electric vehicles

2003 ◽  
Author(s):  
Shukang Cheng ◽  
Yulong Pei ◽  
Feng Chai ◽  
Shumei Cui
Keyword(s):  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Hybrid Electric ◽  
Starter Generator

Design of a Switched Reluctance Generator Drive System for Hybrid Electric Vehicles

2010 ◽  
Vol 143-144 ◽  
pp. 1027-1030
Author(s):  
Ai Hua Wu ◽  
Jing Feng Mao ◽  
Guo Qing Wu ◽  
Zhi Li ◽  
Fei Zheng
Keyword(s):  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Control Method ◽  
Experimental System ◽  
Drive System ◽  
Switched Reluctance ◽  
Hybrid Electric ◽  
Set Up ◽  
Starter Generator ◽  
Charge Mode

In this paper, the design and implementation of a 12/10 poles 6-phase switched reluctance generator (SRG) drive system for hybrid electric vehicles (HEVs) is investigated. Firstly, the principle of the SRG, its control parameters and operation characteristics are analyzed. Then, according to the requirements of the SRG using as an integrated starter generator for HEVs, an optimized switch angle position with current chopping control method is proposed to regulate the SRG power output. In order to improve the charge performance and extend the service life, the lead-acid battery group uses a two-stage charge mode, which is realized by two digital power regulators of the SRG. After that, an experimental system is set up and the controller's internal circuit is described. At last, the proposed SRG drive system is verified by experimental results.

Steady-state and start-up transient responses of a belt-driven starter generator system for micro-hybrid electric vehicles

2021 ◽  
pp. 107754632110222
Author(s):  
Deyu Li ◽  
Hao Zhu ◽  
Weidong Zhu ◽  
Zao He ◽  
Biwen Zhou ◽  
...  
Keyword(s):  
Steady State ◽  
Dynamic Model ◽  
Electric Vehicles ◽  
Dry Friction ◽  
Hybrid Electric Vehicles ◽  
Generator System ◽  
Start Up ◽  
Hybrid Electric ◽  
Starting Process ◽  
Starter Generator

For micro-hybrid electric vehicles, the belt-driven starter generator system is a typical idle stop–start system that is used to substitute the traditional engine front-end accessory drive system. The aim of this work is to present a method to investigate steady-state and start-up transient responses of a typical belt-driven starter generator system with twin tensioner arms for micro-hybrid electric vehicles. A dynamic model of the belt-driven starter generator system is established for this scheme, where a smoothing dynamic friction model considering the velocity-weakening effect is presented to model the tensioner dry friction. Unlike some traditional dynamic models of the belt-driven starter generator system that the engine dynamics and dynamics of the belt-driven starter generator system are decoupled, an engine dynamic model, which is embedded in the dynamic model of the belt-driven starter generator system, is also established to calculate engine resistance torques at the engine starting process stage. Influences of the tensioner dry friction and stiffness on steady-state responses of the belt-driven starter generator system especially the stick–slip oscillations of the twin tensioner arms are examined. Angular oscillations and rotation speed variations of the belt-driven starter generator pulley and C/S pulley as well as the belt tension variations during the engine starting process are calculated. Influences of the tensioner dry friction and stiffness on transient dynamic performances of the belt-driven starter generator system during the engine starting process and its starting efficiency are investigated.

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