EPE Association: EPE 2011 - LS7g: Topic 18: Electric Propulsion Systems for Electrified Vehicles

EPE 2011 - LS7g: Topic 18: Electric Propulsion Systems for Electrified Vehicles
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2011 ECCE Europe - Conference > EPE 2011 - Topic 18: Electrical systems in Road Vehicles > EPE 2011 - LS7g: Topic 18: Electric Propulsion Systems for Electrified Vehicles

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   Decrease of asynchronous rotation-fequence noise and vibration caused by electromagnetic force inside the motor for a hybrid-vehicle
By Masanori ARATA, Motoyasu MOCHIZUKI, Takashi ARAKI, Yasuo HIRANO, Masakatsu MATSUBARA [View]
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Abstract: A hybrid vehicle (HEV) is one of the solutions to improve efficiency of a cruse and to reduce CO2 gas. It is requested to decrease the motor size and to increase the maximum torque for minimizing the driving units. For these purposes permanent magnet applied motors have been commonly used recently. And according to electrical output up rating of a hybrid electric vehicle motor, parallel circuits will take place in the armature circuit. But it possibly causes trouble of noise and vibration of the motor because the motor driving systems of electric vehicle (EV) or HEV must operate at large variable speed ranges of up to 1:5. The authors analyzed the feature of noise pattern and consider the main cause. Mock up tests are conducted to confirm the main cause and the countermeasures including winding scheme change are determined. This paper describes mechanism of asynchronous rotation-fequence noise and vibrations arising from parallel circuit and the method to decrease them.

   Electrical Gearbox Equivalent by means of Dynamic Machine Operation
By Thomas GERRITS, Korneel WIJNANDS, Johan PAULIDES, Jorge DUARTE [View]
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Abstract: A dynamic propulsion system using variable torque/speed characteristics, designed to realize a machine integrated equivalent of a gearbox is presented. This is achieved through adaption of the machine characteristics, and driven by specialized power electronics, leading to a reconfigurable stator coil arrangement. The concept can for example be used to minimize the overall weight of an electric vehicle (EV) powertrain, and to allow for flexible, fault-tolerant operation of the machine and power electronics. The dynamic machine operation is explained for various torque/speed combinations, and a number of power electronics solutions to execute the principle is proposed. Simulations of the topologies and fault operation are performed and a comparison is undertaken.

   Robust Implementation of High Speed Sensorless Control for a High Volume Automotive Electric Steering Application
By Adrian SZABO, Connel WILLIAMS [View]
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Abstract: No abstract provided.

EPE 2011 - LS7g: Topic 18: Electric Propulsion Systems for Electrified Vehicles
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2011 ECCE Europe - Conference > EPE 2011 - Topic 18: Electrical systems in Road Vehicles > EPE 2011 - LS7g: Topic 18: Electric Propulsion Systems for Electrified Vehicles
	[return to parent folder]

	Decrease of asynchronous rotation-fequence noise and vibration caused by electromagnetic force inside the motor for a hybrid-vehicle By Masanori ARATA, Motoyasu MOCHIZUKI, Takashi ARAKI, Yasuo HIRANO, Masakatsu MATSUBARA	[View] [Download]
Abstract: A hybrid vehicle (HEV) is one of the solutions to improve efficiency of a cruse and to reduce CO2 gas. It is requested to decrease the motor size and to increase the maximum torque for minimizing the driving units. For these purposes permanent magnet applied motors have been commonly used recently. And according to electrical output up rating of a hybrid electric vehicle motor, parallel circuits will take place in the armature circuit. But it possibly causes trouble of noise and vibration of the motor because the motor driving systems of electric vehicle (EV) or HEV must operate at large variable speed ranges of up to 1:5. The authors analyzed the feature of noise pattern and consider the main cause. Mock up tests are conducted to confirm the main cause and the countermeasures including winding scheme change are determined. This paper describes mechanism of asynchronous rotation-fequence noise and vibrations arising from parallel circuit and the method to decrease them.

	Electrical Gearbox Equivalent by means of Dynamic Machine Operation By Thomas GERRITS, Korneel WIJNANDS, Johan PAULIDES, Jorge DUARTE	[View] [Download]
Abstract: A dynamic propulsion system using variable torque/speed characteristics, designed to realize a machine integrated equivalent of a gearbox is presented. This is achieved through adaption of the machine characteristics, and driven by specialized power electronics, leading to a reconfigurable stator coil arrangement. The concept can for example be used to minimize the overall weight of an electric vehicle (EV) powertrain, and to allow for flexible, fault-tolerant operation of the machine and power electronics. The dynamic machine operation is explained for various torque/speed combinations, and a number of power electronics solutions to execute the principle is proposed. Simulations of the topologies and fault operation are performed and a comparison is undertaken.

	Robust Implementation of High Speed Sensorless Control for a High Volume Automotive Electric Steering Application By Adrian SZABO, Connel WILLIAMS	[View] [Download]
Abstract: No abstract provided.