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(1 - 10 of 10)
Power Management for Multi-module Energy Storage Systems in Electric, Hybrid Electric, and Fuel Cell Vehicles
Title
Power Management for Multi-module Energy Storage Systems in Electric, Hybrid Electric, and Fuel Cell Vehicles
Creator
Lukic, Srdjan, Emadi, Ali
Date
2012-03-20, 2010-12-28
Description
An electric energy storage system (EESS) for providing a power management solution for a multi-subsystem energy storage in electric, hybrid...
Show moreAn electric energy storage system (EESS) for providing a power management solution for a multi-subsystem energy storage in electric, hybrid electric, and fuel cell vehicles. The EESS has a controller that determines when to draw power from each subsystem as needed by the vehicle.
Sponsorship: Illinois Institute of Technology
United States Patent
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Combustion Engine Acceleration Support Using an Integrated Starter/Alternator
Title
Combustion Engine Acceleration Support Using an Integrated Starter/Alternator
Creator
Jayabalan, Ranjit, Emadi, Ali
Date
2009-05-19, 2006-04-11
Description
A method of providing acceleration support to a combustion engine using an integrated starter/alternator. The integrated starter/alternator is...
Show moreA method of providing acceleration support to a combustion engine using an integrated starter/alternator. The integrated starter/alternator is in rotational combination with the crankshaft and connected to a battery system. The integrated starter/alternator is adapted to function at times as a power source adding torque to rotate the crankshaft to overcome friction and non-linear hydrodynamic forces within the engine. At other times the integrated starter/alternator functions as a power generator for subtracting torque from the crankshaft to provide electrical current to the battery system.
Sponsorship: Illinois Institute of Technology
United States Patent
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Hybrid Energy Storage System
Title
Hybrid Energy Storage System
Creator
Cao, Jian, Emadi, Ali
Date
2014-10-16, 2014-10-14
Description
A hybrid energy storage system for supplying power to an application with a fluctuating load profile, such as, for example, electric vehicles,...
Show moreA hybrid energy storage system for supplying power to an application with a fluctuating load profile, such as, for example, electric vehicles, hybrid electric vehicles, plug-in hybrid electric vehicles, wind energy harvesting equipment and solar energy harvesting equipment. The hybrid energy storage system includes an ultra-capacitor electrically connected to a DC bus and a power source electrically connected to the DC bus via a controlled switch. The hybrid energy storage system further including a DC/DC converter connected between the power source and the ultra-capacitor, the DC/DC converter boosting a voltage of the power source to charge the ultra-capacitor. The DC/DC converter is preferably controlled to maintain a voltage of the ultra-capacitor at a higher value than the voltage of the power source.
Sponsorship: Illinois Institute of Technology
United States Patent
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Integrated Electric Motor Differential for Hybrid Electric Vehicles
Title
Integrated Electric Motor Differential for Hybrid Electric Vehicles
Creator
Rodriguez, Fernando, Emadi, Ali
Date
2012-03-20, 2012-02-14
Description
An electro-mechanical drive train for a hybrid electric vehicle. The electro-mechanical drive train includes a housing and a pinion shaft...
Show moreAn electro-mechanical drive train for a hybrid electric vehicle. The electro-mechanical drive train includes a housing and a pinion shaft having a first end disposed within the housing and a second end in communication with a combustion engine. A differential is disposed within the housing and in combination with the end of the pinion shaft. An electric motor is also disposed within the housing and in actuating combination with the pinion shaft.
Sponsorship: Illinois Institute of Technology
United States Patent
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Switched Reluctance Machine
Title
Switched Reluctance Machine
Creator
Desai, Piyush C., Emadi, Ali
Date
2009-05-19, 2007-06-12
Description
A switched reluctance machine (SRM) having a rotor and stator pole numerical relationship of S number of stator poles and R number of rotor...
Show moreA switched reluctance machine (SRM) having a rotor and stator pole numerical relationship of S number of stator poles and R number of rotor poles, where R=2S-2, when S is greater than 4; provides improved power density, torque production, torque ripple, and acoustic noise, and is readily adaptable to existing hardware such as known controllers and the like.
Sponsorship: Illinois Institute of Technology
United States Patent
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Integrated Bi-directional Converter for Plug-in Hybrid Electric Vehicles
Title
Integrated Bi-directional Converter for Plug-in Hybrid Electric Vehicles
Creator
Lee, Young Joo, Emadi, Ali
Date
2012-03-20, 2011-02-15
Description
This invention relates to a power module for a plug-in hybrid electric vehicle including an integrated converter having a rectifier changing...
Show moreThis invention relates to a power module for a plug-in hybrid electric vehicle including an integrated converter having a rectifier changing AC to DC, a DC/DC converter changing from a first voltage to a second voltage, and a battery storing electrical energy. The integrated converter operates in three modes 1) AC plug-in charging mode, 2) boost mode supplying power from the battery to the electrical bus and 3) buck mode supplying power from the electrical bus to the battery. The integrated converter utilizes the same single inductor during each of the three operating modes to reduce cost and weight of the system.
Sponsorship: Illinois Institute of Technology
United States Patent
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Digital Control of Motor Drives
Title
Digital Control of Motor Drives
Creator
Emadi, Ali, Rodriguez, Fernando, Desai, Piyush C.
Date
2012-03-20, 2007-03-20
Description
A digital controller is easily implemented for variable speed or torque control of an electric motor or generator by using a comparator to...
Show moreA digital controller is easily implemented for variable speed or torque control of an electric motor or generator by using a comparator to determine a choice of control state outputs.
Sponsorship: Illinois Institute of Technology
United States Patent
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Digital Control of Power Converters
Title
Digital Control of Power Converters
Creator
Khaligh, Alireza, Lee, Young-joo, Emadi, Ali
Date
2012-03-20, 2012-01-03
Description
A method of controlling a DC/DC converter to regulate an output voltage from an input voltage source that varies from a fully-charged voltage...
Show moreA method of controlling a DC/DC converter to regulate an output voltage from an input voltage source that varies from a fully-charged voltage to a discharged voltage. The method introduced improves the dynamic response of the converter during transients by switching between different converter topologies to spread out voltage spikes, which are an inevitable result of transients. The invention also can improve the efficiency of the DC/DC converter by replacing higher loss modes with combination modes.
Sponsorship: Illinois Institute of Technology
United States Patent
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Digital Control of Motor Drives
Title
Digital Control of Motor Drives
Creator
Rodriguez, Fernando, Lukic, Srdjan M., Emadi, Ali
Date
2012-03-20, 2011-06-14
Description
A digital controller for controlling variable speed and dynamic torque applications of an electric motor. The controller includes a state...
Show moreA digital controller for controlling variable speed and dynamic torque applications of an electric motor. The controller includes a state observer monitoring a torque load requirement and sending a signal based on the torque load requirement, and a digital control unit for receiving the signal from the state observer and sending an output to the electric motor. The output is a value that corresponds to a first motor operating state or a second motor operating state.
Sponsorship: Illinois Institute of Technology
United States Patent
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Hybrid Electric Conversion Kit for Rear-wheel Drive, All Wheel Drive, and Four Wheel Drive Vehicles
Title
Hybrid Electric Conversion Kit for Rear-wheel Drive, All Wheel Drive, and Four Wheel Drive Vehicles
Creator
Rodriguez, Fernando, Lukic, Srdjan M., Wirasingha, Sanjaka G., Emadi, Ali
Date
2012-03-20, 2011-09-06
Description
This invention relates to a parallel hybrid electric conversion kit for a vehicle with an internal combustion engine, a driveshaft and a...
Show moreThis invention relates to a parallel hybrid electric conversion kit for a vehicle with an internal combustion engine, a driveshaft and a transmission, such as, rear wheel drive vehicles, four-wheel drive vehicles, heavy duty multiple-driven-axle vehicles and/or all-wheel drive vehicles. The conversion kit includes a motor-generator, a torque coupler, a battery, a power electronics module and a controller. Suitable torque couplers include transfer cases and/or rear-through differentials. The conversion kit provides an aftermarket solution to increased performance, fuel economy and/or reduced emissions by modifying the drivetrain after the transmission. According to one embodiment of this invention, the control scheme of the installed conversion kit receives input signals from the engine and the motor-generator, but only sends control signals to the motor-generator, facilitating installation of the conversion kit.
Sponsorship: Illinois Institute of Technology
United States Patent
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