# US 12,110,019 B2 · Vehicle driving control system and method

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- Number: US 12,110,019 B2
- Document ID: US12110019B2
- Status: Granted
- Kind: B2
- Application number: 17/558,983
- Filed: 2021-12-22
- Published: 2022-07-14
- Granted: 2024-10-08
- Earliest claimed: 2021-01-11
- Assignees: Hyundai Mobis Co., Ltd.
- Applicants: HYUNDAI MOBIS Co., Ltd.
- Inventors: Jeong Hee Lee
- Web page: https://patentgrep.com/patent/US12110019B2

## CPC

- B60W 30/143: {Speed control (B60W30/16 takes precedence)}
- G06V 20/56: exterior to a vehicle by using sensors mounted on the vehicle
- B60W 30/0956: {the prediction being responsive to traffic or environmental parameters}
- B60W 40/04: Traffic conditions
- B60W 40/068: Road friction coefficient
- B60W 40/072: Curvature of the road
- B60W 40/08: related to drivers or passengers
- B60W 40/105: Speed
- B60W 50/0098: {Details of control systems ensuring comfort, safety or stability not otherwise provided for}
- G06V 10/60: relating to illumination properties, e.g. using a reflectance or lighting model
- G06V 20/597: {Recognising the driver's state or behaviour, e.g. attention or drowsiness}
- B60W 2040/0818: {Inactivity or incapacity of driver}
- B60W 2050/0022: {Gains, weighting coefficients or weighting functions}
- B60W 2540/229: Attention level, e.g. attentive to driving, reading or sleeping
- B60W 2552/05: Type of road, e.g. motorways, local streets, paved or unpaved roads
- B60W 2552/30: Road curve radius
- B60W 2552/40: Coefficient of friction
- B60W 2554/4041: Position
- B60W 2554/4042: Longitudinal speed
- B60W 2554/4043: Lateral speed
- B60W 2554/4044: Direction of movement, e.g. backwards
- B60W 2555/20: Ambient conditions, e.g. wind or rain
- B60W 2556/40: High definition maps
- B60W 2556/50: of positioning data, e.g. GPS [Global Positioning System] data
- 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
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING

## Abstract

The present disclosure discloses a vehicle driving control system including a road information device calculating road information of a curved road on which the vehicle drives; a road surface information device calculating road surface condition of a road; a neighboring vehicle information device calculating location information or movement information of the neighboring vehicle located close to the vehicle; and a computing device computing a target speed based on the road information calculated by the road information device, the road surface condition calculated by the road surface information device, and the location information or movement information of the neighboring vehicle calculated by the neighboring vehicle information device.

## Claims

### Claim 1

A vehicle driving control system comprising:
a road information device calculating road information of a curved road on which a vehicle drives;
a road surface information device calculating a road surface condition of a road;
a neighboring vehicle information device calculating location information or movement information of a neighboring vehicle located close to the vehicle;
a computing device computing a target speed based on the road information calculated by the road information device, the road surface condition calculated by the road surface information device, and the location information or the movement information of the neighboring vehicle calculated by the neighboring vehicle information device; and
a processor controlling driving of the vehicle based on the computed target speed,
wherein the road information device is connected to a navigator mounted in the vehicle to calculate a radius of curvature of the curved road based on information obtained from the navigator, and
wherein the computing device computes a reference speed of the vehicle based on the radius of curvature of the curved road calculated by the road information device, calculates a weight based on the road surface condition calculated by the road surface information device, computes a subtraction speed based on the weight, and computes the target speed by subtracting the subtraction speed from the reference speed.

### Claim 2 (depends on 1)

The system of claim 1, wherein the computing device computes the subtraction speed by putting the weight into a pre-mapped map.

### Claim 3 (depends on 1)

The system of claim 1, wherein the computing device reduces the target speed when a present location of the vehicle is in a cautious driving zone according to the road information calculated by the road information device.

### Claim 4 (depends on 1)

The system of claim 1, wherein the computing device computes to reduce the target speed when the neighboring vehicle information device calculates lateral movement of the neighboring vehicle.

### Claim 5

A vehicle driving control method comprising:
calculating, by a processor, road information of a curved road on which the vehicle drives;
calculating, by the processor, a road surface condition of a road;
calculating, by the processor, location information or movement information of a neighboring vehicle located close to the vehicle;
computing, by the processor, a target speed based on the road information calculated in the calculating of the road information and the road surface condition calculated in the calculating of the road surface information; and
controlling, by the processor, driving of the vehicle based on the computed target speed,
wherein the computing of the target speed comprises:
calculating a radius of curvature of the curved road based on the road information of the curved road;
computing a reference speed of the vehicle based on the radius of curvature of the curved road;
calculating a weight based on the road surface condition;
computing a subtraction speed based on the weight, and computing the target speed by subtracting the subtraction speed from the reference speed.

### Claim 6 (depends on 5)

The method of claim 5, wherein the computing of the target speed further comprises computing the subtraction speed by putting the weight into a pre-mapped map.

### Claim 7 (depends on 5)

The method of claim 5, wherein the computing of the target speed further comprises reducing the target speed when a present location of the vehicle is in a cautious driving zone according to the road information.

### Claim 8 (depends on 5)

The method of claim 5, wherein the computing of the target speed further comprises reducing the target speed when calculating lateral movement of the neighboring vehicle.