Counter-rotating electric motor system for high efficiency operation of a hybrid or electric vehicle
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United States of America Patent
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Jul 4, 2023
Grant Date -
Jan 7, 2021
app pub date -
Jul 10, 2020
filing date -
Jan 23, 2018
priority date (Note) -
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Abstract
A vehicle that utilizes a counter-rotating electric motor to generate at least a portion of its propulsive force that includes the vehicle with front and rear wheels, the counter-rotating motor with two oppositely rotating components linked to two drive shafts that are coupled to the wheels in a common rotational direction, a component for reversible stopping the rotation of at least one rotating component while permitting the drive shafts to rotate, a power source linked to the motor, and a controller that controls both the speed of the vehicle and the reversible stopping component to switch between a first operational mode for slower vehicle speeds and a second operational mode for higher vehicle speeds, thereby increasing the overall electrical efficiency for operating the vehicle.
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