# US 11,305,694 B2 · Devices, systems, and methods for calibrating a vehicle mirror assembly

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- Number: US 11,305,694 B2
- Document ID: US11305694B2
- Status: Granted
- Kind: B2
- Application number: 16/674,403
- Filed: 2019-11-05
- Published: 2021-05-06
- Granted: 2022-04-19
- Earliest claimed: 2019-11-05
- Assignees: Toyota Motor Engineering & Manufacturing North America, Inc.
- Applicants: Toyota Motor Engineering & Manufacturing North America, Inc.
- Inventors: Ethan W. Pomish; Todd Muck
- Web page: https://patentgrep.com/patent/US11305694B2

## CPC

- B60R 1/074: for retracting the mirror arrangements to a non-use position alongside the vehicle
- B60R 1/078: easily removable; mounted for bodily outward movement, e.g. when towing
- B60R 1/003: {for viewing trailer hitches}
- B60R 2001/1223: {with sensors or transducers}
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

A system is disclosed and includes a vehicle. The vehicle includes a plurality of sensors including a first set and a second set. The vehicle includes a mirror assembly that includes a mirror body and one or more actuators that are actuable to move the mirror assembly between an extended position and a retracted position. The second set is positioned on the mirror assembly. The vehicle includes a controller communicatively coupled to the plurality of sensors and the one or more actuators, and the controller causes the one or more actuators to adjust a position of the mirror body based on information received from the first set. The controller selectively activates the second set based on the position of the mirror body. The controller calibrates the second set of the plurality of sensors while the position of the mirror body is being set to the extended position.

## Claims

### Claim 1

A vehicle, comprising:
a plurality of sensors comprising a first set and a second set;
a mirror assembly comprising a mirror body and one or more actuators actuable to move the mirror assembly between an extended position and a retracted position, wherein the second set is positioned on the mirror assembly; and
a controller communicatively coupled to the sensors and the actuators, wherein the controller:
causes the actuators to adjust a position of the mirror body based on information received from the first set;
selectively activates the second set based on the position; and
calibrates the second set while the position is set to the extended position.

### Claim 2 (depends on 1)

The vehicle of claim 1, wherein the controller causes the one or more actuators to adjust the position of the mirror body in response to the information received from the first set of the plurality of sensors indicating that an object is coupled to a trailer hitch of the vehicle.

### Claim 3 (depends on 2)

The vehicle of claim 2, wherein the first set of the plurality of sensors is positioned on a rear of the vehicle.

### Claim 4 (depends on 1)

The vehicle of claim 1, wherein the controller activates the second set of the plurality of sensors when the mirror body is set to the extended position.

### Claim 5 (depends on 1)

The vehicle of claim 1, wherein information received from the second set of the plurality of sensors indicates at least one of a distance and an angle between the second set of the plurality of sensors and a reference object of the vehicle.

### Claim 6 (depends on 5)

The vehicle of claim 5, wherein calibrating the second set of the plurality of sensors while the position of the mirror body is set to the extended position causes the controller to:
identify an entry in a database, wherein the entry indicates a distance and a position of the mirror body associated with the distance;
determine whether the position of the mirror body is equal to a preset position; and
adjust the position of the mirror body in response to the position of the mirror body not being equal to the preset position.

### Claim 7 (depends on 1)

The vehicle of claim 1, wherein calibrating the second set of the plurality of sensors while the position of the mirror body is set to the extended position causes the controller to:
determine a distance between the mirror body and the vehicle based on a position signal received from the one or more actuators; and
calibrate the second set based on the distance.

### Claim 8 (depends on 1)

The vehicle of claim 1, wherein the plurality of sensors comprises at least one of a LIDAR sensor, a radar sensor, an infrared sensor, a sonar sensor, an ultrasonic sensor, an optical sensor, and a Doppler effect sensor.

### Claim 9

A method of operating a mirror assembly of a vehicle comprising a plurality of sensors, the plurality of sensors comprising a first set and a second set, the second set positioned on the mirror assembly, the mirror assembly comprising a mirror body and one or more actuators actuable to move the mirror assembly between an extended position and a retracted position, the method comprising:
adjusting, using a controller, a position of the mirror body based on information received from the first set of the plurality of sensors;
selectively activating, using the controller, the second set of the plurality of sensors based on the position of the mirror body; and
calibrating, using the controller, the second set of the plurality of sensors while the position of the mirror body is set to the extended position.

### Claim 10 (depends on 9)

The method of claim 9, further comprising adjusting the position of the mirror body in response to the information received from the first set of the plurality of sensors indicating that an object is coupled to a trailer hitch of the vehicle.

### Claim 11 (depends on 9)

The method of claim 9, further comprising activating the second set of the plurality of sensors when the mirror body is set to the extended position.

### Claim 12 (depends on 9)

The method of claim 9, wherein information received from the second set of the plurality of sensors indicates at least one of a distance and an angle between the second set of the plurality of sensors and a reference object of the vehicle.

### Claim 13 (depends on 12)

The method of claim 12, wherein calibrating the second set of the plurality of sensors while the position of the mirror body is set to the extended position further comprises:
identifying, using the controller, an entry in a database, wherein the entry indicates a distance and a position of the mirror body associated with the distance;
determining, using the controller, whether the position of the mirror body is equal to a preset position; and
adjusting, using the controller, the position of the mirror body in response to the position of the mirror body not being equal to the preset position.

### Claim 14 (depends on 9)

The method of claim 9, wherein calibrating the second set of the plurality of sensors while the position of the mirror body is set to the extended position further comprises:
determining, using the controller, a distance between the mirror body and the vehicle based on a position signal received from the one or more actuators; and
calibrating, using the controller, the second set based on the distance.

### Claim 15

A vehicle comprising:
a mirror assembly comprising a mirror body and an actuator actuable to move the mirror body between an extended position and a retracted position;
a plurality of sensors comprising a first set disposed at a rear of the vehicle and a second set disposed on the mirror body; and
a controller communicatively coupled to the plurality of sensors and the actuator, wherein the controller is programmed to:
cause the actuator to extend the mirror body based on information received from the first set;
and
calibrate the second set to account for the extended position of the mirror body.

### Claim 16 (depends on 15)

The vehicle of claim 15, wherein the controller causes the one or more actuators to adjust the position of the mirror body in response to the information received from the first set of the plurality of sensors indicating that an object is coupled to a trailer hitch of the vehicle.

### Claim 17 (depends on 15)

The vehicle of claim 15, wherein the first set comprises at least one of a LIDAR sensor, a radar sensor, an infrared sensor, a sonar sensor, an ultrasonic sensor, an optical sensor, and a Doppler effect sensor.

### Claim 18 (depends on 15)

The vehicle of claim 15, wherein the controller is programmed to calibrate the second set of the plurality of sensors when the mirror body is set to the extended position by:
determining a distance between the mirror body and the vehicle based on a position signal received from the one or more actuators; and
calibrating the second set based on the distance.
