An electric scooter with super-capacitor drive and regenerative braking

Sun, L; Awadallah, M; Chi, L; Zhang, N

An electric scooter with super-capacitor drive and regenerative braking

Sun, L

Awadallah, M

Chi, L Zhang, N

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Publication Type:: Conference Proceeding
Citation:: SAE Technical Papers, 2014, 1
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Sun, L https://orcid.org/0000-0003-2054-6695	en_US
dc.contributor.author	Awadallah, M https://orcid.org/0000-0002-2317-4527	en_US
dc.contributor.author	Chi, L	en_US
dc.contributor.author	Zhang, N https://orcid.org/0000-0001-6408-0044	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	SAE Technical Papers, 2014, 1	en_US
dc.identifier.issn	0148-7191	en_US
dc.identifier.uri	http://hdl.handle.net/10453/103599
dc.description.abstract	This paper presents a smart electric scooter system consisting of a microprocessor based vehicle controller (integrating an embedded regenerative braking controller), a 300W Permanent Magnet (PM) DC motor, two low-power DC-DC converters to form a higher power DC-DC converter pack, a motor controller, a supercapacitor bank and a capacitor cell balancing sub-system. During acceleration or forward motoring mode, the vehicle controller sets the DC motor into motoring mode to further utilizing motor controller regulate wheel speed and acceleration torque, whereas during deceleration or forward braking mode, sets the DC motor into braking mode and further utilizing regenerative braking controller regulate wheel speed and braking torque, as well as functions as a constant current (whose reference value is adjustable via a potentiometer) generator to charge the supercapacitor bank in a controllable fashion, hence not only successfully replacing frictional braking to certain degree, but also increasing the total energy efficiency dramatically owing to the low internal resistance and larger capacitance of the supercapacitor compared with other conventional regenerative braking systems via batteries. General structure of the smart system, control principle of the controllers, realization of measurement platform, experimental test setup as well as validation with results are all presented within this paper. Copyright © 2014 SAE International.	en_US
dc.relation.ispartof	SAE Technical Papers	en_US
dc.relation.isbasedon	10.4271/2014-01-1878	en_US
dc.title	An electric scooter with super-capacitor drive and regenerative braking	en_US
dc.type	Conference Proceeding
utslib.citation.volume	1	en_US
utslib.for	0902 Automotive Engineering	en_US
utslib.for	091304 Dynamics, Vibration and Vibration Control	en_US
utslib.for	0910 Manufacturing Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	1	en_US

Abstract:

This paper presents a smart electric scooter system consisting of a microprocessor based vehicle controller (integrating an embedded regenerative braking controller), a 300W Permanent Magnet (PM) DC motor, two low-power DC-DC converters to form a higher power DC-DC converter pack, a motor controller, a supercapacitor bank and a capacitor cell balancing sub-system. During acceleration or forward motoring mode, the vehicle controller sets the DC motor into motoring mode to further utilizing motor controller regulate wheel speed and acceleration torque, whereas during deceleration or forward braking mode, sets the DC motor into braking mode and further utilizing regenerative braking controller regulate wheel speed and braking torque, as well as functions as a constant current (whose reference value is adjustable via a potentiometer) generator to charge the supercapacitor bank in a controllable fashion, hence not only successfully replacing frictional braking to certain degree, but also increasing the total energy efficiency dramatically owing to the low internal resistance and larger capacitance of the supercapacitor compared with other conventional regenerative braking systems via batteries. General structure of the smart system, control principle of the controllers, realization of measurement platform, experimental test setup as well as validation with results are all presented within this paper. Copyright © 2014 SAE International.

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http://hdl.handle.net/10453/103599