EPE Association: EPE 1999 - Topic 08b: Hybrid Vehicles

EPE 1999 - Topic 08b: Hybrid Vehicles
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1999 - Conference > EPE 1999 - Topic 08: ELECTRIC AND HYBRID VEHICLES > EPE 1999 - Topic 08b: Hybrid Vehicles

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   An Innovative Power Train for Road Vehicles
By M. Marchesoni; D. Mozzone; P. Segarich [View]
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Abstract: The on board installation of an autonomous electrical energy generation system represents a good technical solution to exceed the travel range limits typical to Zero Emission Vehicles (ZEVs). In this regard, a novel power train has been developed, that is constituted by two permanent magnet AC motor drives, a diesel engine and an integrated supervisor system devoted to energy management, whole system control and control panel commands.

   Compensation of Combustional Torque Pulsation Using Neural Networks
By M. Beuschel; D. Schröder [View]
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Abstract: In conventional combustion engines, the combustion process and oscillating masses produce torque pulsation which affects the life cycle of the power train and also reduces the driver’s comfort. It has been suggested to absorb this pulsation using an AC-machine as actuator which is mounted on the crankshaft to generate an inverse torque sequence [2]. In this paper, an approach for online identification of this combustional torque pulsation will be presented. A Harmonic Activation Neural Network (HANN) is used to estimate this periodic sequence at variable operating points of a combustion engine. For compensation, the actuator is fed with the identified and analytically phase corrected signal. The underlying algorithm copes with restrictions such as reduced sensor quality, limited torque range of the AC-machine and time delayed actuator operation. Simulation results are added for illustration.

   Double-Layer Capacitor Short-Time Storage Device in a Hybrid Vehicle
By M. Schmid; A. Egger [View]
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Abstract: An arrangement of double-layer capacitors and a suitable dc/dc converter acts as a short-time storage device in a Hybrid Electric Vehicle. In addition to an increased service life of the battery, this combination allows a significant reduction of storage losses. Experimental investigations confirm the calculated energy saving potential. A control strategy based on a neural network and genetic algorithms provides self-optimization in the area of capacitor control. A simulation system was defined and set up as a basis for a realistic estimate of the imporvement to be expected. Its model parameters were obtained by measurements on selected test devices.

   Using the EMAFER Flywheel for Power Demand Smoothing in the ULEV-TAP Light-Rail Vehicle
By R. J. W. Knaapen; H. Huisman; E. J. F. M. Smits; F. J. M. Thoolen [View]
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Abstract: Curently under development is the Ultra-Low Emission Vehicle Transport using Advanced Propulsion (ULEV-TAP), which is a light-rail vehicle consisting of a Prime Mover Unit comprising a gas turbine and a high-speed generator for average power supply. Other components in the vehicle are a four-quadrant Drive Brake Unit to convert electrical to mechanical energy and vice versa, an Energy Storage Unit for power demand smoothening, Auxiliary devices, e.g. for power supply to controllers, and a Supervisory Control Unit for the overall vehicle control. The Centre for Construction and Mechatronics is concerned with the development of the Energy Storage Unit. To use the EMAFER (Electro Mechanical Accumulator For Energy Re-use) flywheel system in this system, an appropriate power electronic inverter configuration has to be chosen, depending on some integration issues. Several possible solutions are presented and evaluated, supported by simulation results of machine-inverter combinations. Then, a final selection is made.

EPE 1999 - Topic 08b: Hybrid Vehicles
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1999 - Conference > EPE 1999 - Topic 08: ELECTRIC AND HYBRID VEHICLES > EPE 1999 - Topic 08b: Hybrid Vehicles
	[return to parent folder]

	An Innovative Power Train for Road Vehicles By M. Marchesoni; D. Mozzone; P. Segarich	[View] [Download]
Abstract: The on board installation of an autonomous electrical energy generation system represents a good technical solution to exceed the travel range limits typical to Zero Emission Vehicles (ZEVs). In this regard, a novel power train has been developed, that is constituted by two permanent magnet AC motor drives, a diesel engine and an integrated supervisor system devoted to energy management, whole system control and control panel commands.

	Compensation of Combustional Torque Pulsation Using Neural Networks By M. Beuschel; D. Schröder	[View] [Download]
Abstract: In conventional combustion engines, the combustion process and oscillating masses produce torque pulsation which affects the life cycle of the power train and also reduces the driver’s comfort. It has been suggested to absorb this pulsation using an AC-machine as actuator which is mounted on the crankshaft to generate an inverse torque sequence [2]. In this paper, an approach for online identification of this combustional torque pulsation will be presented. A Harmonic Activation Neural Network (HANN) is used to estimate this periodic sequence at variable operating points of a combustion engine. For compensation, the actuator is fed with the identified and analytically phase corrected signal. The underlying algorithm copes with restrictions such as reduced sensor quality, limited torque range of the AC-machine and time delayed actuator operation. Simulation results are added for illustration.

	Double-Layer Capacitor Short-Time Storage Device in a Hybrid Vehicle By M. Schmid; A. Egger	[View] [Download]
Abstract: An arrangement of double-layer capacitors and a suitable dc/dc converter acts as a short-time storage device in a Hybrid Electric Vehicle. In addition to an increased service life of the battery, this combination allows a significant reduction of storage losses. Experimental investigations confirm the calculated energy saving potential. A control strategy based on a neural network and genetic algorithms provides self-optimization in the area of capacitor control. A simulation system was defined and set up as a basis for a realistic estimate of the imporvement to be expected. Its model parameters were obtained by measurements on selected test devices.

	Using the EMAFER Flywheel for Power Demand Smoothing in the ULEV-TAP Light-Rail Vehicle By R. J. W. Knaapen; H. Huisman; E. J. F. M. Smits; F. J. M. Thoolen	[View] [Download]
Abstract: Curently under development is the Ultra-Low Emission Vehicle Transport using Advanced Propulsion (ULEV-TAP), which is a light-rail vehicle consisting of a Prime Mover Unit comprising a gas turbine and a high-speed generator for average power supply. Other components in the vehicle are a four-quadrant Drive Brake Unit to convert electrical to mechanical energy and vice versa, an Energy Storage Unit for power demand smoothening, Auxiliary devices, e.g. for power supply to controllers, and a Supervisory Control Unit for the overall vehicle control. The Centre for Construction and Mechatronics is concerned with the development of the Energy Storage Unit. To use the EMAFER (Electro Mechanical Accumulator For Energy Re-use) flywheel system in this system, an appropriate power electronic inverter configuration has to be chosen, depending on some integration issues. Several possible solutions are presented and evaluated, supported by simulation results of machine-inverter combinations. Then, a final selection is made.