Design and Experimental Study on ElectricallyAssisted Turbocharger with External Motor

DING Zhanming; CHENG Zhenyu; CAO Xiaolin; WANG Xiaoyuan; ZHANG Yan; MEN Rixiu; SHEN Jianxin

doi:10.3969/j.issn.1001-2222.2021.03.002

Vehicle Engine ›› 2021, Vol. 0 ›› Issue (3) : 8-14. DOI: 10.3969/j.issn.1001-2222.2021.03.002

Design and Experimental Study on ElectricallyAssisted Turbocharger with External Motor

DING Zhanming^1,2,CHENG Zhenyu²,CAO Xiaolin²,WANG Xiaoyuan¹，ZHANG Yan²,MEN Rixiu²,SHEN Jianxin³

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Abstract

The electricallyassisted turbocharger with external motor can be realized with little change on the structure of traditional turbocharger. It has the advantages of simple electric transformation and small thermal load of motor, which is one of the important technical routes of electricallyassisted supercharging. The matching method of highspeed permanent magnetic motor and turbocharger was proposed based on the acceleration performance target. An overrunning clutch was then designed to connect and disconnect the highspeed motor and turbocharger. A dynamics model of rotorbearing system for electricallyassisted turbocharger was built and the analysis of rotor stability was carried out. The integration of electricallyassisted turbocharger was conducted and a prototype was produced. The study of acceleration response for electricallyassisted turbocharger were further carried out. The experimental results showed that turbocharger response time reduced by 25.9%.

Key words

turbocharger / electrically-assisted supercharging / permanent magnetic brushless motor / matching / acceleration test

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DING Zhanming,CHENG Zhenyu,CAO Xiaolin,WANG Xiaoyuan,ZHANG Yan,MEN Rixiu,SHEN Jianxin. Design and Experimental Study on ElectricallyAssisted Turbocharger with External Motor[J]. Vehicle Engine. 2021, 0(3): 8-14 https://doi.org/10.3969/j.issn.1001-2222.2021.03.002