# US 2021/0342500 A1 · Systems and methods for vehicle modeling

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- Number: US 2021/0342500 A1
- Document ID: US20210342500A1
- Status: Published application
- Kind: A1
- Application number: 16/865,181
- Filed: 2020-05-01
- Published: 2021-11-04
- Earliest claimed: 2020-05-01
- Assignees: Steering Solutions IP Holding Corporation
- Applicants: Steering Solutions IP Holding Corporation
- Inventors: Mariam S. George; Michael R. Story; Farhad Bolourchi; Joachim J. Klesing; Larry J. Wilson; Peter D. Schmitt
- Web page: https://patentgrep.com/patent/US20210342500A1

## CPC

- G06F 30/15: Vehicle, aircraft or watercraft design
- B62D 15/02: Steering position indicators {; Steering position determination; Steering aids}
- G06F 30/20: Design optimisation, verification or simulation (optimisation, verification or simulation of circuit designs G06F30/30)
- B62D 5/0457: {characterised by control features of the drive means as such}
- B62D 5/0481: {monitoring the steering system, e.g. failures}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)

## Abstract

A method for vehicle modeling includes receiving one or more design specification characteristics corresponding to a vehicle steering system design and receiving one or more end-of-line characteristics of a vehicle steering system that includes the vehicle steering system design. The method also includes generating a master model of the vehicle steering system design using the one or more design specification characteristics corresponding to the vehicle steering system design and generating at least one initial parameter using the one or more end-of-line characteristics of the vehicle steering system. The method also includes generating a vehicle specific model based on the master model and the at least one initial parameter and receiving operational data corresponding to the vehicle steering system. The method also includes generating at least one subsequent parameter using the operational data and updating the vehicle specific model using the at least one subsequent parameter.

## Claims

### Claim 1

A method for vehicle modeling; the method comprising:
receiving one or more design specification characteristics corresponding to a vehicle steering system design;
receiving one or more end-of-line characteristics of a vehicle steering system that includes the vehicle steering system design;
generating a master model of the vehicle steering system design using the one or more design specification characteristics corresponding to the vehicle steering system design;
generating at least one initial parameter using the one or more end-of-line characteristics of the vehicle steering system;
generating a vehicle specific model based on the master model and the at least one initial parameter;
receiving operational data corresponding to the vehicle steering system;
generating at least one subsequent parameter using the operational data; and
updating the vehicle specific model using the at least one subsequent parameter.

### Claim 2 (depends on 1)

The method of claim 1, wherein the operational data includes at least vehicle sensor data indicating one or more measurements of the vehicle steering system during operation of a vehicle corresponding to the vehicle steering system.

### Claim 3 (depends on 1)

The method of claim 1, wherein the master model includes a digital representation of a class of vehicle steering systems corresponding to the vehicle steering system design.

### Claim 4 (depends on 1)

The method of claim 1, wherein the vehicle specific model includes a digital representation of at least the vehicle steering system.

### Claim 5 (depends on 1)

The method of claim 1, wherein the vehicle specific model includes a first constituent model and a second constituent model, wherein the first constituent model includes a physics-based representation of the vehicle steering system, and wherein the second constituent model includes a machine learning based representation of the vehicle steering system.

### Claim 6 (depends on 5)

The method of claim 5, further comprising identifying, using at least one of the first constituent model and the second constituent model, a potential fault in the vehicle steering system.

### Claim 7 (depends on 5)

The method of claim 5, further comprising generating, using at least the first constituent model, accident reconstruction information.

### Claim 8 (depends on 5)

The method of claim 5, further comprising:
receiving a steering system input; and
predicting, using at least the second constituent model, a future response of the vehicle steering system to the steering system input.

### Claim 9 (depends on 1)

The method of claim 1, wherein the master model and the vehicle specific model are stored on a computing device remotely located from the vehicle steering system.

### Claim 10

A system for vehicle modeling; the system comprising:
a processor; and
a memory including instructions that, when executed by the processor, cause the processor to:
receive one or more design specification characteristics corresponding to a vehicle steering system design;
receive one or more end-of-line characteristics of a vehicle steering system that includes the vehicle steering system design;
generate a master model of the vehicle steering system design using the one or more design specification characteristics corresponding to the vehicle steering system design;
generate at least one initial parameter using the one or more end-of-line characteristics of the vehicle steering system; and
generate a vehicle specific model based on the master model and the at least one initial parameter;
receive operational data corresponding to the vehicle steering system;
generate at least one subsequent parameter using the operational data; and
update the vehicle specific model using the at least one subsequent parameter.

### Claim 11 (depends on 10)

The system of claim 10, wherein the operational data includes at least vehicle sensor data indicating one or more measurements of the vehicle steering system during operation of a vehicle corresponding to the vehicle steering system.

### Claim 12 (depends on 10)

The system of claim 10, wherein the master model includes a digital representation of a class of vehicle steering systems corresponding to the vehicle steering system design.

### Claim 13 (depends on 10)

The system of claim 10, wherein the vehicle specific model includes a digital representation of at least the vehicle steering system.

### Claim 14 (depends on 10)

The system of claim 10, wherein the vehicle specific model includes a first constituent model and a second constituent model, wherein the first constituent model includes a physics-based representation of the vehicle steering system, and wherein the second constituent model includes a machine learning based representation of the vehicle steering system.

### Claim 15 (depends on 10)

The system of claim 10, wherein the instructions further cause the processor to identify a potential fault in the vehicle steering system using the vehicle specific model.

### Claim 16 (depends on 10)

The system of claim 10, wherein the instructions further cause the processor to identify at least one characteristic of a maneuver previously executed by the vehicle steering system using the vehicle specific model.

### Claim 17 (depends on 10)

The system of claim 10, wherein the master model and the vehicle specific model are stored on a computing device remotely located from the vehicle steering system.

### Claim 18 (depends on 10)

The system of claim 10, wherein the instructions further cause the processor to:
receive a steering system input; and
determine, using the vehicle specific model, a future response of the vehicle steering system to the steering system input.

### Claim 19

A vehicle modeling system, comprising:
a processor; and
a memory that includes instructions that, when executed by the processor, cause the processor to:
receive a master model that includes a digital representation of a class of vehicles corresponding to a vehicle design;
receive one or more end-of-line characteristics of a vehicle that includes the vehicle design;
generate an initial parameter set using the one or more end-of-line characteristics of the vehicle;
generate a vehicle specific physics-based model using the master model and the initial parameter set;
generate a vehicle specific machine learning based model using at least one of the vehicle specific physics-based model, the master model, and the initial parameter set;
in response to receiving operation data corresponding to the vehicle, update at least one of the vehicle specific physics-based model and the vehicle specific machine learning based model; and
selectively determine operational behavior of at least one component of the vehicle using at least one of the vehicle specific physics-based model and the vehicle specific machine learning model.

### Claim 20 (depends on 19)

The system of claim 19, wherein the at least one component of the vehicle includes a vehicle steering system.
