# US 12,005,834 B2 · Autonomous seat sanitizing system for a vehicle

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- Number: US 12,005,834 B2
- Document ID: US12005834B2
- Status: Granted
- Kind: B2
- Application number: 17/029,854
- Filed: 2020-09-23
- Published: 2022-03-24
- Granted: 2024-06-11
- Earliest claimed: 2020-09-23
- Assignees: Toyota Motor North America, Inc.
- Applicants: Toyota Motor North America, Inc.
- Inventors: Roger Akira Kyle; Timothy Wang; Bryan E. Yamasaki
- Web page: https://patentgrep.com/patent/US12005834B2

## CPC

- B60Q 3/217: Doors, e.g. door sills; Steps
- A61L 2/10: Ultraviolet [UV] radiation
- A61L 2/24: Apparatus using programmed or automatic operation
- B60N 2/0021: {characterised by the type of sensor or measurement}
- B60Q 1/0023: {the element being a sensor, e.g. distance sensor, camera}
- B60Q 3/233: Seats; Arm rests; Head rests
- B60Q 3/68: using ultraviolet light
- B60Q 3/70: characterised by the purpose
- A61L 2103/75: Room floors or walls
- A61L 2202/14: Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
- B60N 2230/30: Signal processing of sensor data
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR

## Abstract

An autonomous seat sanitizing system for a vehicle includes a vehicle seat sanitizing system control module configured to detect a person approaching a vehicle. Responsive to a person approaching the vehicle, a distance of the person from the vehicle is determined. The distance of the person from the vehicle is compared to a predetermined threshold distance. If the distance of the person from the vehicle is less than the predetermined threshold distance, the control module determines if at least one seat in the vehicle occupant compartment is unoccupied. If at least one seat is unoccupied, the module controls operation of the vehicle to direct a sanitizing ultraviolet (UV) light onto the unoccupied seat until a vehicle door is opened from an exterior of the vehicle, or until the distance of the person from the vehicle is no longer less than the predetermined threshold distance.

## Claims

### Claim 1

An autonomous seat sanitizing system for a vehicle, the autonomous seat sanitizing system comprising one or more processors and a memory communicably coupled to the one or more processors and storing a vehicle seat sanitizing system control module including computer-readable instructions that when executed by the one or more processors cause the one or more processors to:
detect a person approaching a vehicle;
determine a first distance of the person to a handle of a front seat door and a second distance of the person to a handle of a rear seat door;
if the first distance is less than the second distance, determine if at least one front seat in the vehicle is unoccupied;
if at least one front seat is unoccupied, control operation of the vehicle to direct a sanitizing ultraviolet light onto the at least one unoccupied front seat;
if the second distance is less than the first distance, determine if at least one rear seat in the vehicle is unoccupied; and
if at least one rear seat is unoccupied, control operation of the vehicle to direct a sanitizing ultraviolet light onto the at least one unoccupied rear seat.

### Claim 2 (depends on 1)

The autonomous seat sanitizing system of claim 1 wherein the vehicle seat sanitizing system control module includes computer-readable instructions that when executed by the one or more processors cause the one or more processors to:
detect the person approaching the vehicle using a positioning signal transmitted by a mobile device carried by the person; and
determine the distance of the person from the vehicle using the positioning signal.

### Claim 3 (depends on 1)

The autonomous seat sanitizing system of claim 1 wherein the vehicle seat sanitizing system control module includes computer-readable instructions that when executed by the one or more processors cause the one or more processors to:
determine a side of the vehicle along which the person is approaching the vehicle;
determine if at least one vehicle seat residing along the side of the vehicle on which the person is approaching the vehicle is unoccupied; and
if at least one vehicle seat along the side of the vehicle on which the person is approaching is unoccupied, direct the sanitizing ultraviolet light onto the at least one unoccupied vehicle seat.

### Claim 4 (depends on 1)

The autonomous seat sanitizing system of claim 1 wherein the vehicle seat sanitizing system control module includes computer-readable instructions that when executed by the one or more processors cause the one or more processors to:
if the first distance is less than the second distance, control operation of the vehicle to direct the sanitizing ultraviolet light onto all unoccupied front seats in an occupant compartment of the vehicle; and
if the second distance is less than the first distance, control operation of the vehicle to direct the sanitizing ultraviolet light onto all unoccupied rear seats in the vehicle occupant compartment.

### Claim 5 (depends on 1)

The autonomous seat sanitizing system of claim 1 wherein the vehicle seat sanitizing system control module includes computer-readable instructions that when executed by the one or more processors cause the one or more processors to:
identify a first seat of an occupant compartment of the vehicle that is occupied;
determine when an occupant of the occupied first seat leaves the first seat, thereby leaving the first seat unoccupied;
determine when all vehicle occupants are seated;
determine when all vehicle occupant compartment doors are closed;
determine if the first seat is still unoccupied; and
if the first seat is still unoccupied, control operation of the vehicle to direct the sanitizing ultraviolet light onto the first seat.

### Claim 6 (depends on 1)

The autonomous seat sanitizing system of claim 1 wherein the sanitizing ultraviolet light is a far-UVC light.

### Claim 7 (depends on 1)

The autonomous seat sanitizing system of claim 1 comprising an ultraviolet light source mounted on a vehicle side door and configured to selectively direct a sanitizing ultraviolet light onto either of a first seat bottom adjacent the vehicle side door or onto a second seat bottom adjacent the first seat bottom.

### Claim 8 (depends on 7)

The autonomous seat sanitizing system of claim 7 wherein the ultraviolet light source is configured to direct the sanitizing ultraviolet light onto both of the first seat bottom and the second seat bottom simultaneously.

### Claim 9 (depends on 1)

The autonomous seat sanitizing system of claim 1 comprising an ultraviolet light source mounted on a vehicle side door configured to selectively direct a sanitizing ultraviolet light onto either of a first seat back adjacent the vehicle side door or onto a second seat back adjacent the first seat back.

### Claim 10 (depends on 9)

The autonomous seat sanitizing system of claim 9 wherein the ultraviolet light source is configured to direct the sanitizing ultraviolet light onto both of the first seat back and the second seat back simultaneously.