Hybrid electric vehicle

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5343970
SERIAL NO

07947691

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An improved hybrid electric vehicle includes an internal combustion engine and an electric motor. Both the motor and the engine provide torque to drive the vehicle directly through a controllable torque transfer unit. Typically at low speeds or in traffic, the electric motor alone drives the vehicle, using power stored in batteries; under acceleration and during hill climbing both the engine and the motor provide torque to drive the vehicle; and in steady state highway cruising, the internal combustion engine alone drives the vehicle. The internal combustion engine is sized to operate at or near its maximum fuel efficiency during highway cruising. The motor is operable as a generator to charge the batteries as needed and also for regenerative braking. No transmission is employed. The motor operates at significantly lower currents and higher voltages than conventionally and has a rated power at least equal to that of the internal combustion engine. In this manner a cost efficient vehicle is provided, suffering no performance disadvantage compared to conventional vehicles.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
The Abell FoundationBALTIMORE, MD, US27
HIRSCH, DAVIDMCLEAN, VA5

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Severinsky, Alex J 10904 Pebble Run, Silver Spring, MD 20902 34 2033

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (9)
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* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (22)
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SHEPPARD, MULLIN, RICHTER & HAMPTON LLP (9)
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The Abell Foundation (9)
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7268442 Method for Estimating Engine Power in a Hybrid Electric Vehicle Powertrain 20 2006
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7398845 Controller and control method for a hybrid electric vehicle powertrain 5 2007
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7896114 Method for controlling engine start in a vehicle 17 2008
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8565990 Vehicle and method for controlling engine start in a vehicle 12 2009
8192324 Vehicle and method for controlling engine start in a vehicle 23 2009
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9440644 Selective electric mode for electric vehicle 0 2014
9545849 Vehicle system and method for adapting lift pedal regeneration 0 2014
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6442455 Adaptive fuel strategy for a hybrid electric vehicle 23 2000
6362602 Strategy to control battery state of charge based on vehicle velocity 29 2001
6487477 Strategy to use an on-board navigation system for electric and hybrid electric vehicle energy management 159 2001
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6491120 Method for operating a hybrid vehicle and a hybrid vehicle incorporating the method 6 2002
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8676414 Hybrid vehicle having multi-mode controller 2 2008
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7507500 Design of a large battery pack for a hybrid locomotive 26 2005
7940016 Regenerative braking methods for a hybrid locomotive 16 2005
7565867 Multiple engine locomotive configuration 20 2005
7304445 Locomotive power train architecture 48 2005
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7514807 Alternator boost method 13 2006
7309929 Locomotive engine start method 25 2006
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7949442 System and method for boosting torque output of a drive train 3 2007
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7276806 System and method for boosting torque output of a drive train 13 2007
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8668035 Electric traction system and method 1 2008
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8565969 Over the road/traction/cabin comfort retrofit 2 2010
9631528 Vehicle reduced emission deployment 0 2010
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7812555 Electric powertrain system having bidirectional DC generator 9 2007
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* Cited By Examiner