# US 12,112,588 B2 · Systems and methods for prediction of component degradation

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- Number: US 12,112,588 B2
- Document ID: US12112588B2
- Status: Granted
- Kind: B2
- Application number: 17/661,018
- Filed: 2022-04-27
- Published: 2022-11-03
- Granted: 2024-10-08
- Earliest claimed: 2021-04-28
- Assignees: Dana Automotive Systems Group, LLC
- Applicants: Dana Automotive Systems Group, LLC
- Inventors: Anoop Keluskar; Sandip Rakhe
- Web page: https://patentgrep.com/patent/US12112588B2

## CPC

- G07C 5/04: using counting means or digital clocks
- F16C 19/52: with devices affected by abnormal or undesired conditions
- F16C 41/00: Other accessories, {e.g. devices integrated in the bearing not relating to the bearing function as such}
- F16C 41/007: {Encoders, e.g. parts with a plurality of alternating magnetic poles}
- F16C 41/008: {Identification means, e.g. markings, RFID-tags; Data transfer means}
- F16C 43/04: Assembling rolling-contact bearings
- G07C 5/008: {communicating information to a remotely located station (transmission systems for measured values G08C)}
- G07C 5/0808: {Diagnosing performance data (testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005)}
- F16C 19/06: with a single row or balls
- F16C 2233/00: Monitoring condition, e.g. temperature, load, vibration
- G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS

## Abstract

Methods and systems are provided for diagnostics and/or prognostics of a vehicle center bearing with integrated sensors. A method includes generating a degradation analysis of the center bearing from real-time vehicle operating data, the data including feedback from one or more of a temperature sensor, a displacement sensor, and an accelerometer wired to a battery integrally arranged in a bearing compartment of a vehicle.

## Claims

### Claim 1

A center bearing diagnostic or prognostic method comprising:
generating, via instructions stored in memory coupled with a processor, a degradation analysis of the center bearing from real-time vehicle operating data, the data including feedback from a temperature sensor, a displacement sensor, and an accelerometer wired to a battery integrally arranged in a bearing compartment of a vehicle, the bearing compartment further including the processor and memory, the instructions including instructions to send real-time data to a remote cloud, instructions for a subscription for on-line processing of data generated via the sensor system at the remote cloud, and access to software for receiving analysis results of the data from the cloud;
wherein:
the battery is configured to be integrally arranged in a bearing compartment arranged between a top plate and a center bearing bracket and separating the top plate from the center bearing bracket, the center bearing bracket physically coupled to the top plate via two or more coupling elements, the two or more coupling elements configured to physically couple the center bearing bracket and the top plate to an underbody of the vehicle;
the data is sent to the cloud in response to a connection to the cloud being available; and
a condition of the center bearing and/or a shaft of the center bearing is predicted using a machine learning (ML) model stored at the cloud, the ML model performing a degradation analysis of the shaft, the ML model continuously updated via a second set of data provided from a plurality of vehicles, the second set of data categorized based on driving conditions of each vehicle of the plurality of vehicles, wherein the driving conditions include one or more of a vehicle make, a vehicle model, a vehicle maintenance history, a vehicle location, a driver behavior, a vehicle average speed, an average vehicle weight, a vehicle odometer reading, a terrain driven, a suspension traveled distance, a cargo weight, and aftermarket devices.

### Claim 2 (depends on 1)

The method of claim 1, wherein the vehicle is a vehicle of a vehicle fleet.

### Claim 3

A system, comprising:
a center bearing sensor system comprising a temperature sensor, a displacement sensor, and an accelerometer wired to a battery integrally arranged in a bearing compartment;
a processor and memory with instructions stored therein, including instructions to send real-time data to a remote cloud, the processor and memory coupled with the battery and the bearing sensor system and instructions for a subscription for on-line processing of data generated via the sensor system at the remote cloud, and access to software for receiving analysis results of the data from the cloud;
wherein:
the battery is configured to be integrally arranged in a bearing compartment arranged between a top plate and a center bearing bracket and separating the top plate from the center bearing bracket, the center bearing bracket physically coupled to the top plate via two or more coupling elements, the two or more coupling elements configured to physically couple the center bearing bracket and the top plate to an underbody of the vehicle;
the data is sent to the cloud in response to a connection to the cloud being available; and
a condition of the center bearing and/or a shaft of the center bearing is predicted using a machine learning (ML) model stored at the cloud, the ML model performing a degradation analysis of the shaft, the ML model continuously updated via a second set of data provided from a plurality of vehicles, the second set of data categorized based on driving conditions of each vehicle of the plurality of vehicles, wherein the driving conditions include one or more of a vehicle make, a vehicle model, a vehicle maintenance history, a vehicle location, a driver behavior, a vehicle average speed, an average vehicle weight, a vehicle odometer reading, a terrain driven, a suspension traveled distance, a cargo weight, and aftermarket devices.

### Claim 4 (depends on 3)

The system of claim 3, wherein the bearing sensor system is configured to provide real-time data regarding the shaft of the vehicle.

### Claim 5 (depends on 4)

The system of claim 4, wherein the network comprises a network processor with instructions stored on memory thereof that when executed cause the network processor to determine a condition of the shaft based on an outcome of a machine learning model receiving the real-time data.

### Claim 6 (depends on 4)

The system of claim 4, wherein the processor further comprises instructions that when executed cause the processor to store the real-time data when a connection to the network is unavailable.

### Claim 7 (depends on 3)

The system of claim 3, wherein the temperature sensor is positioned between a ball bearing outer race and a center bearing rubber housing.

### Claim 8 (depends on 3)

The system of claim 3, wherein the accelerometer is positioned between a center bearing rubber housing and a top plate.

### Claim 9 (depends on 3)

The system of claim 3, wherein the displacement sensor is positioned in a center bearing rubber housing.

### Claim 10 (depends on 3)

The system of claim 3, wherein the center bearing is a ball bearing.

### Claim 11 (depends on 3)

The system of claim 3, wherein the battery is arranged on a first side of the bearing and the temperature sensor, the displacement sensor, and the accelerometer are arranged on a second side of the bearing opposite the first side.

### Claim 12

A kit for a center bearing of a vehicle, the kit comprising:
a battery and a sensor system including a temperature sensor, a displacement sensor, and an accelerometer configured to be wired to the battery;
a processor and memory with instructions stored therein, including instructions to send real-time data to a remote cloud, the processor and memory coupled with the battery and the sensor system; and
instructions for a subscription for on-line processing of data generated via the sensor system at the remote cloud, and access to software for receiving analysis results of the data from the cloud;
wherein:
the battery is configured to be integrally arranged in a bearing compartment arranged between a top plate and a center bearing bracket and separating the top plate from the center bearing bracket, the center bearing bracket physically coupled to the top plate via two or more coupling elements, the two or more coupling elements configured to physically couple the center bearing bracket and the top plate to an underbody of the vehicle;
the data is sent to the cloud in response to a connection to the cloud being available; and
a condition of the center bearing and/or a shaft of the center bearing is predicted using a machine learning (ML) model stored at the cloud, the ML model performing a degradation analysis of the shaft, the ML model continuously updated via a second set of data provided from a plurality of vehicles, the second set of data categorized based on driving conditions of each vehicle of the plurality of vehicles, wherein the driving conditions include one or more of a vehicle make, a vehicle model, a vehicle maintenance history, a vehicle location, a driver behavior, a vehicle average speed, an average vehicle weight, a vehicle odometer reading, a terrain driven, a suspension traveled distance, a cargo weight, and aftermarket devices.

### Claim 13 (depends on 12)

The kit of claim 12, wherein the bearing compartment is rubber.

### Claim 14 (depends on 12)

The kit of claim 12, wherein the temperature sensor and the accelerometer extend into an outer race of the center bearing.
