DocumentCode :
1941905
Title :
Gear locking mechanism to extend the consistent power operating region of the electric motor to enhance acceleration and regenerative braking efficiency in hybrid electric vehicles
Author :
Suntharalingam, P. ; Economou, J.T. ; Knowles, K.
Author_Institution :
Dept. of Eng. Syst. & Manage., Cranfield Univ., Swindon, UK
fYear :
2009
fDate :
7-10 Sept. 2009
Firstpage :
103
Lastpage :
108
Abstract :
Hybrid electric vehicle and electric vehicles are employing electric motor as one of the major propulsion medium. As a result of the higher performance requirement and to manipulate the variety of driving circumstances, sizing of the electric motor is crucial in this particular drivetrain systems. In addition to that, since the electric motor is assisting with the IC engine to achieve the acceleration demand in the parallel hybrid electric vehicle, the motor sizing is critical here. Moreover, regenerative braking performance is important for the energy enhancement of the vehicle. However over sizing the electric motor will cause to the other issues such as over sizing the power converter, battery system, power electronic design, etc, which is unfavorably increasing the weight and volume of the vehicle. Therefore a novel gear shifting mechanism is introduced here to achieve the expected performance output from a low power output motor. Optimum operating efficiency of the electric propulsion system is achieved by extending the constant power operating region of the electric motor generator in the vehicle.
Keywords :
electric motors; electric propulsion; hybrid electric vehicles; regenerative braking; IC engine; acceleration enhancement; battery system; drivetrain systems; electric motor generator; electric propulsion system; gear locking mechanism; gear shifting mechanism; hybrid electric vehicles; motor sizing; power converter; power electronic design; power operating region; regenerative braking efficiency; Acceleration; Battery powered vehicles; Electric motors; Engines; Gears; Hybrid electric vehicles; Hybrid integrated circuits; Power electronics; Power generation; Propulsion;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicle Power and Propulsion Conference, 2009. VPPC '09. IEEE
Conference_Location :
Dearborn, MI
Print_ISBN :
978-1-4244-2600-3
Electronic_ISBN :
978-1-4244-2601-0
Type :
conf
DOI :
10.1109/VPPC.2009.5289862
Filename :
5289862
Link To Document :
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