Vehicle monitoring system
AssigneeTransportation IP Holdings, LLC
InventorsBret Dwayne Worden, Ajith Kumar
Life of this patent
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Abstract
The systems and methods described herein include monitoring systems and methods that monitor speeds of a motor of a vehicle represented as a pulse signal indicative of a rotational position of the motor. The systems and methods include receive a pulse signal from a speed sensor coupled to a traction motor. The pulse signal is indicative of a rotational position of the traction motor. The systems and methods include analyze the pulse signal to identify per-revolution signal reoccurrences that meet designated criteria, and determine a defect based on the per-revolution signal reoccurrences that are identified. The defect is one or more of a wheel defect, a bearing defect, or a gear defect.
Claims18
A system comprising:
- a speed sensor coupled to a traction motor of an axle drive train of a vehicle, wherein the speed sensor is configured to generate a pulse signal indicative of a rotational position of the traction motor;
- a controller circuit operatively coupled to the speed sensor, the controller circuit configured to determine a spatial array of one or more of a wheel or an axle of the vehicle operably coupled with the axle drive train, the spatial array representing a plurality of spatial buckets, each spatial bucket representing an angular position of the one or more of the wheel or axle,
- the controller circuit configured to analyze the pulse signal based on the plurality of spatial buckets to identify per-revolution signal reoccurrences that meet designated criteria to determine a defect of one or more of the wheel, a bearing, or a gear, the per-revolution signal reoccurrences indicating the pulse signal associated with each of the corresponding spatial buckets of the spatial array and the corresponding angular position of the one or more of the wheel or the axle based on a location of each spatial bucket, and
- and
- wherein the controller circuit is configured to automatically adjust a tractive effort duration of an axle having the defect or a vehicle speed responsive to determining the defect.
A method comprising:
- receiving a pulse signal from a speed sensor coupled to a traction motor, wherein the pulse signal is indicative of a rotational position of the traction motor;
- determining a spatial array of one or more of a wheel or an axle of a vehicle operably coupled with the traction motor, the spatial array representing a plurality of spatial buckets, each spatial bucket representative of an angular position of the one or more of the wheel or the axle;
- analyzing the pulse signal based on the plurality of spatial buckets to identify per-revolution signal reoccurrences that meet designated criteria to determine a defect of one or more of the wheel, a bearing, or a gear, the per-revolution signal reoccurrences indicating the pulse signal associated with each of the corresponding spatial buckets of the spatial array and the corresponding angular position of the one or more of the wheel or the axle based on a location of each spatial bucket;
- and
- automatically changing a speed of the vehicle responsive to determining the defect.
A system comprising:
- a controller circuit configured to receive a signal from a speed sensor of a vehicle, the signal representative of rotational positions of a motor of the vehicle, wherein the controller circuit is configured to determine a plurality of spatial buckets, each spatial bucket representing an angular position the motor,
- the controller circuit configured to analyze the signal based on the plurality of spatial buckets to identify per-revolution signal reoccurrences that meet designated criteria to determine a defect of one or more of a wheel, a bearing of the vehicle, or a gear of the vehicle, the per-revolution signal reoccurrences identifying at least one of the spatial buckets where the designated criteria is met and a corresponding angular position of the motor based on a location of the at least one spatial bucket, wherein the controller circuit is configured to automatically reduce a speed of the vehicle responsive to determining the defect.
Dependencies are inferred from the claim text.