System and Method for Vehicle Position Sensing with Use of Propulsion Windings
First Claim
1. A system for determining a position of a vehicle on a guideway which comprises:
- a magnet system mounted on the vehicle, wherein the magnet system has a wavelength “
λ
”
;
a propulsion winding located on the guideway for carrying a propulsion current, wherein the propulsion winding includes at least one section having a wavelength “
λ
”
, and each section has “
N”
coils linearly aligned along the guideway, with a phase difference of “
λ
/N”
between adjacent coils in the section;
a transmitter located on the vehicle for emitting a position current, with said position current interacting with the propulsion winding to produce a signal in each coil therein; and
a processor for collectively normalizing the respective signals from each of the coils to determine the position of the vehicle on the guideway for use in maximizing an interaction of the propulsion current in the propulsion winding along the guideway with the magnet system on the vehicle, for propulsion of the vehicle.
3 Assignments
0 Petitions
Accused Products
Abstract
A system and method are provided for determining the position of a vehicle on a guideway. For operation, the vehicle includes a magnet system having a wavelength “λ”. Further, the guideway includes a propulsion winding for carrying a propulsion current. Structurally, the propulsion winding includes a series of sections, with each section having a wavelength “λ”. Further, the propulsion winding includes “N” coils linearly aligned along the guideway, with a phase difference of “λ/N” between adjacent coils. Importantly, a transmitter is located on the vehicle for emitting a position current that interacts with the propulsion winding to produce a signal in each coil. Also, the system includes a trap connected to each coil for receiving each respective signal, and a processor for resolving the respective signals to determine the position of the vehicle on the guideway.
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Citations
20 Claims
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1. A system for determining a position of a vehicle on a guideway which comprises:
-
a magnet system mounted on the vehicle, wherein the magnet system has a wavelength “
λ
”
;a propulsion winding located on the guideway for carrying a propulsion current, wherein the propulsion winding includes at least one section having a wavelength “
λ
”
, and each section has “
N”
coils linearly aligned along the guideway, with a phase difference of “
λ
/N”
between adjacent coils in the section;a transmitter located on the vehicle for emitting a position current, with said position current interacting with the propulsion winding to produce a signal in each coil therein; and a processor for collectively normalizing the respective signals from each of the coils to determine the position of the vehicle on the guideway for use in maximizing an interaction of the propulsion current in the propulsion winding along the guideway with the magnet system on the vehicle, for propulsion of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for determining a position of a vehicle on a guideway which comprises:
-
a magnet system mounted on the vehicle, wherein the magnet system has a wavelength “
λ
”
;a propulsion winding located on the guideway for carrying a propulsion current, wherein the propulsion winding includes at least one section having a wavelength “
λ
”
, and each section has “
N”
coils linearly aligned along the guideway, with a phase difference of “
λ
/N”
between adjacent coils in the section;a means mounted on the vehicle for emitting a position current, with said position current interacting with the propulsion winding to produce a signal in each coil therein; and a means for resolving the respective signals from each of the coils to determine the position of the vehicle on the guideway for use in maximizing an interaction of the propulsion current in the propulsion winding along the guideway with the magnet system on the vehicle, for propulsion of the vehicle. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for determining a position of a vehicle on a guideway which comprises the steps of:
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mounting a magnet system on the vehicle, wherein the magnet system has a wavelength “
λ
”
;locating a propulsion winding on the guideway for carrying a propulsion current, wherein the propulsion winding includes at least one section having a wavelength “
λ
”
, and each section has “
N”
coils linearly aligned along the guideway, with a phase difference of “
λ
/N”
between adjacent coils in the section;placing a transmitter on the vehicle; emitting a position current from the transmitter, with said position current interacting with the propulsion winding to produce a signal in each coil therein; and resolving the respective signals from each of the coils to determine the position of the vehicle on the guideway for use in maximizing an interaction of the propulsion current in the propulsion winding along the guideway with the magnet system on the vehicle, for propulsion of the vehicle. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification