# US 11,440,553 B2 · Vehicular device and computer-readable non-transitory storage medium storing computer program

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,440,553 B2
- Document ID: US11440553B2
- Status: Granted
- Kind: B2
- Application number: 16/855,834
- Filed: 2020-04-22
- Published: 2020-08-06
- Granted: 2022-09-13
- Earliest claimed: 2017-10-30
- Assignees: Denso Corporation
- Applicants: Denso Corporation
- Inventors: Ichiro Yoshida; Kayoko Bando; Tetsushi Noro
- Web page: https://patentgrep.com/patent/US11440553B2

## CPC

- B60H 1/0065: {Control members, e.g. levers or knobs (B60H1/00985 takes precedence)}
- B60W 40/08: related to drivers or passengers
- B60H 1/00735: {Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models}
- B60K 28/066: {actuating a signalling device (B60K28/063 takes precedence)}
- B60R 11/04: Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
- B60R 16/02: electric {constitutive elements}
- B60W 10/30: including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
- B60W 50/14: Means for informing the driver, warning the driver or prompting a driver intervention
- G08G 1/09: Arrangements for giving variable traffic instructions ({railroad crossing signals B61L; reflectors E01F, G08B}; indicating arrangements for variable information by selection or combination of individual elements G09F9/00)
- G08G 1/16: Anti-collision systems (road vehicle drive control systems for predicting or avoiding probable or impending collision otherwise than by control of a particular sub-unit B60W30/08)
- B60W 2040/0872: {Driver physiology}
- B60W 2540/10: Accelerator pedal position
- B60W 2540/12: Brake pedal position
- B60W 2540/221: Physiology, e.g. weight, heartbeat, health or special needs
- B60W 2540/225: Direction of gaze
- B60W 2554/802: Longitudinal distance
- B60W 2556/50: of positioning data, e.g. GPS [Global Positioning System] data
- B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93})

## Abstract

A vehicular device includes: an eye opening degree determiner that determines a driver eye opening degree; a line-of-sight movement determiner that determines frequency of a driver line-of-sight movement; an operation determiner that determines a driver operation state for a driving operation instrument; a deviation determiner that determines a possibility that a driving state of a subject vehicle driver deviates from a safe driving state; a vehicle inside notification controller that performs a notification operation for a vehicle inside; and a vehicle outside notification controller that performs a notification operation for a vehicle outside.

## Claims

### Claim 1

A vehicular device comprising:
an eye opening degree determiner configured to determine a driver eye opening degree;
a line-of-sight movement determiner configured to determine frequency of a driver line-of-sight movement;
an operation determiner configured to determine a driver operation state for a driving operation instrument;
a deviation determiner configured to determine a possibility that a driving state of a subject vehicle driver deviates from a safe driving state in a short cycle determination period and a long cycle determination period based on a determination result of the driver eye opening degree, a determination result of the frequency of the driver line-of-sight movement, a determination result of the driver operation state for the driving operation instrument;
a vehicle inside notification controller configured to perform a notification operation for a vehicle inside; and
a vehicle outside notification controller configured to perform a notification operation for a vehicle outside,
wherein
on a condition that a value indicating the possibility that the driving state of the subject vehicle driver deviates from the safe driving state exceeds a first determination value for the short cycle determination period and on a condition that a value indicating the possibility that the driving state of the subject vehicle driver deviates from the safe driving state exceeds the first determination value for the long cycle determination period, the vehicle inside notification controller is configured to perform the notification operation for notifying the vehicle inside that the value exceeds the first determination value, and
on a condition that the value indicating the possibility that the driving state of the subject vehicle driver deviates from the safe driving state exceeds a second determination value higher than the first determination value for the long cycle determination period, the vehicle outside notification controller is configured to perform the notification operation for notifying the vehicle outside that the value exceeds the second determination value.

### Claim 2 (depends on 1)

The vehicular device according to claim 1, further comprising:
an information reception determiner configured to determine whether to receive safe driving deviation information from the vehicle outside,
wherein
the vehicle inside notification controller is configured to perform a notification operation for notifying the vehicle inside of a possibility that a driving state of an other vehicle driver deviates from the safe driving state on a condition of receiving the safe driving deviation information from the vehicle outside.

### Claim 3 (depends on 1)

The vehicular device according to claim 1, wherein
the operation determiner is configured to determine the driver operation state for the driving operation instrument based on at least one of a driver reaction speed for the driving operation instrument or a driver operation amount for the driving operation instrument.

### Claim 4 (depends on 3)

The vehicular device according to claim 3, wherein
the operation determiner is configured to determine the driver operation state for the driving operation instrument by comparing a measurement value obtained by measuring at least one of the driver reaction speed for the driving operation instrument or the driver operation amount for the driving operation instrument with a normal state value in a driver normal state.

### Claim 5 (depends on 4)

The vehicular device according to claim 4, wherein
the operation determiner is configured to learn the normal state value.

### Claim 6 (depends on 1)

The vehicular device according to claim 1, further comprising:
an air conditioning controller configured to perform an air conditioning control by an air conditioning system,
wherein
the air conditioning controller is configured to perform the air conditioning control on a condition that the possibility that the driving state of the subject vehicle driver deviates from the safe driving state exceeds an air conditioning determination value.

### Claim 7 (depends on 1)

The vehicular device according to claim 1, further comprising:
a safe traveling controller configured to perform a safe traveling control by a safe traveling system,
wherein
the safe traveling controller is configured to perform the safe traveling control on a condition that the possibility that the driving state of the subject vehicle driver deviates from the safe driving state exceeds a safe traveling determination value.

### Claim 8

A computer-readable non-transitory storage medium storing a computer program configured to cause a controller of a vehicular device to
determine a driver eye opening degree,
determine frequency of a driver line-of-sight movement,
determine a driver operation state for a driving operation instrument,
determine a possibility that a driving state of a subject vehicle driver deviates from a safe driving state in a short cycle determination period and a long cycle determination period based on a determination result of the driver eye opening degree, a determination result of the frequency of the driver line-of-sight movement, and a determination result of the driver operation state for the driving operation instrument,
perform, on a condition that a value indicating the possibility that the driving state of the subject vehicle driver deviates from the safe driving state exceeds a first determination value for the short cycle determination period and on a condition that a value indicating the possibility that the driving state of the subject vehicle driver deviates from the safe driving state exceeds the first determination value for the long cycle determination period, a notification operation for notifying a vehicle inside that the value exceeds the first determination value, and
perform, on a condition that the value indicating the possibility that the driving state of the subject vehicle driver deviates from the safe driving state exceeds a second determination value higher than the first determination value for the long cycle determination period, a notification operation for notifying a vehicle outside that the value exceeds the second determination value.
