Eddy current brake system
AssigneeVisteon Global Technologies, Inc.
InventorsGirma Gete Desta, Kevin Jerome Pavlov, Zhesheng Li
Life of this patent
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Abstract
An eddy current brake or retarder device for bringing a vehicle to rest is disclosed. The device includes a stator mounted to a frame of the vehicle, a plurality of poles disposed along a perimeter of the stator, a plurality of coils each wound about each of the plurality of poles, wherein an adjacent pair of poles form an electromagnet when the coil is energized, and a rotor in communication with a transmission axle of the vehicle and located concentric with the stator. A relative rotation of the rotor with respect to the stator produces eddy currents between the poles of the stator and an outer surface of the rotor, causing the rotor to come to a rest.
Claims22
An eddy current brake device for bringing a vehicle to rest, the device comprising:
- a stator mounted to a frame of the vehicle;
- a plurality of poles disposed along a perimeter of the stator;
- a plurality of coils, wherein each of the plurality of coils are wound about each of the plurality of poles, wherein an adjacent pair of poles form an electromagnet when the coil is energized;
- and
- a rotor in communication with a transmission axle of the vehicle and located concentric with the stator, and wherein a relative rotation of the rotor with respect to the stator produces eddy currents between the poles of the stator and an outer surface of the rotor, causing the rotor to come to a rest.
An eddy current brake device for bringing a vehicle to rest, the device comprising:
- a stator mounted to a frame of the vehicle;
- a plurality of poles disposed along a perimeter of the stator;
- an end plate located at an end of each of the plurality of poles, wherein the end plate has a plurality of grooves disposed in a top surface of the end plate, forming a plurality of sub-poles;
- a plurality of coils, wherein each of the plurality of coils are wound about each of the plurality of poles, wherein an adjacent pair of poles form an electromagnet when the coil is energized;
- and
- a rotor in communication with a transmission axle of the vehicle and located concentric with the stator, and wherein a relative rotation of the rotor with respect to the stator produces eddy currents between the poles of the stator and an outer surface of the rotor, causing the rotor to come to a rest.
An eddy current brake device for bringing a vehicle to rest, the device comprising:
- a stator mounted to a frame of the vehicle;
- a plurality of poles disposed along a perimeter of the stator;
- an end plate located at an end of each of the plurality of poles, wherein the end plate has a plurality of grooves disposed in a top surface of the end plate, forming a plurality of sub-poles;
- a plurality of coils, wherein each of the plurality of coils are wound about each of the plurality of poles, wherein an adjacent pair of poles form an electromagnet when the coil is energized;
- a rotor in communication with a transmission axle of the vehicle and located concentric with the stator;
- and
- a gear box in communication with the axle and the rotor for transmitting torque to the axle and to allow the axle to rotate at a lower rotational speed than the rotor, and
- wherein a relative rotation of the rotor with respect to the stator produces eddy currents between the poles of the stator and an outer surface of the rotor, causing the rotor to come to a rest.
Dependencies are inferred from the claim text.