# US 11,993,306 B2 · Steering system for a vehicle

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- Number: US 11,993,306 B2
- Document ID: US11993306B2
- Status: Granted
- Kind: B2
- Application number: 17/276,989
- Filed: 2019-09-04
- Published: 2022-02-03
- Granted: 2024-05-28
- Earliest claimed: 2018-09-18
- Assignees: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- Applicants: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- Inventors: Csaba Kokrehel; Huba Nemeth; Peter Szell; Tamas Rapp; Kornel Straub
- Web page: https://patentgrep.com/patent/US11993306B2

## CPC

- B62D 15/0235: {by measuring or deriving directly at the electric power steering motor}
- B62D 5/001: {Mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup}
- B62D 15/02: Steering position indicators {; Steering position determination; Steering aids}
- B62D 15/0225: {by measuring on a steering gear element, e.g. on a rack bar}
- B62D 15/023: {by measuring on the king pin}
- 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 steering system for a vehicle includes a steering gear, two knuckles of two steerable wheels, a steering actuator, a plurality of sensors, and a processing unit. The steering gear is connected to a first knuckle of the two knuckles and the steering gear is connected to a second knuckle of the two knuckles. The steering gear is connected to the steering actuator. The sensors are mounted at locations associated with the steering gear. Each of the plurality of sensors is configured to acquire steering system position information. Each of the plurality of sensors are configured to provide acquired steering system information to the processing unit.

## Claims

### Claim 1

A steering system for a vehicle, the steering system comprising:
a steering gear;
two knuckles of two steerable wheels;
a steering actuator;
a plurality of sensors; and
a processing unit;
wherein, the steering gear is connected to a first knuckle of the two knuckles and the steering gear is connected to a second knuckle of the two knuckles, and wherein the connection between the steering gear and two knuckles comprises an output shaft of the steering gear;
wherein, the steering gear is connected to the steering actuator, and wherein the connection between the steering gear and steering actuator comprises a torque transmitting unit or input shaft;
wherein, the plurality of sensors are mounted at locations associated with the steering gear;
wherein, each of the plurality of sensors is configured to acquire steering system position information;
wherein, each of the plurality of sensors are configured to provide the acquired steering system information to the processing unit;
wherein at least one of the plurality of sensors is configured to measure a steering position on at least one of the two knuckles and/or associated connection rod;
wherein at least one of the plurality of sensors is configured to measure a steering position on the output shaft; and
wherein at least one of the plurality of sensors is configured to measure a steering position on the torque transmitting unit or input shaft.

### Claim 2 (depends on 1)

The steering system according to claim 1, wherein
at least one first sensor of the plurality of sensors is configured to measure a steering position on the first knuckle and/or associated connection rod, and
at least one second sensor of the plurality of sensors is configured to measure a steering position on the second knuckle and/or associated connection rod.

### Claim 3 (depends on 1)

The steering system according to claim 1, wherein
at least two of the plurality of sensors are configured to measure a steering position on the torque transmitting unit or input shaft.

### Claim 4 (depends on 1)

The steering system according to claim 1, wherein
at least one sensor is mounted on a steering column.

### Claim 5 (depends on 1)

The steering system according to claim 1, wherein
at least one of the plurality of sensors is configured to determine a steering position on the basis of an internal measurement of the steering gear.

### Claim 6 (depends on 5)

The steering system according to claim 5, wherein
at least two of the plurality of sensors are configured to determine a steering position on the basis of an internal measurement of the steering gear.

### Claim 7 (depends on 1)

The steering system according to claim 1, wherein
at least one of the plurality of sensors is configured to acquire linear position information and/or at least one of the plurality of sensors is configured to acquire angular position information.