# US 2022/0032899 A1 · Apparatus and method for controlling vehicle utilizing traffic information

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- Number: US 2022/0032899 A1
- Document ID: US20220032899A1
- Status: Published application
- Kind: A1
- Application number: 17/386,986
- Filed: 2021-07-28
- Published: 2022-02-03
- Earliest claimed: 2020-07-28
- Assignees: Hyundai Kefico Corporation
- Applicants: Hyundai Kefico Corporation
- Inventors: Young-Ho Jun; Hyun-Ki Shin; Hyung-Jin Shin; Jun-Hyung Lee; Jung-Mook Choo
- Web page: https://patentgrep.com/patent/US20220032899A1

## CPC

- B60W 20/12: using control strategies taking into account route information {(estimation or calculation of non-directly measurable driving parameters B60W40/00)}
- B60K 6/48: Parallel type
- B60W 10/06: including control of combustion engines
- B60W 10/08: including control of electric propulsion units, e.g. motors or generators
- B60W 40/04: Traffic conditions
- B60W 10/26: for electrical energy, e.g. batteries or capacitors
- B60W 2050/0031: {Mathematical model of the vehicle}
- B60W 2510/244: Charge state
- B60W 2554/406: Traffic density
- B60W 2554/408: Traffic behavior, e.g. swarm
- B60W 2556/10: Historical data
- B60W 2710/0666: Engine torque
- B60W 2710/0677: Engine power
- B60W 2710/086: Power
- B60W 2710/244: Charge state
- B60W 2720/30: Wheel torque
- Y02T 10/62: Hybrid vehicles
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- 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
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A control apparatus for controlling a vehicle includes a driving motor configured to drive the vehicle by outputting motor torque based on a supply voltage from a battery, and an engine configured to drive the vehicle by outputting engine torque. The control apparatus may acquire driving mode data which is calculated based on traffic information from the current position to the destination of the vehicle and dimension information of the vehicle, and control the vehicle to drive to the destination according to a driving mode which is determined by applying a travelling condition of the vehicle to the acquired driving mode data, where the power distribution ratio of the motor torque to the engine torque is reflected in the driving mode data.

## Claims

### Claim 1

A control apparatus for controlling a vehicle which includes a driving motor configured to drive the vehicle by outputting motor torque based on a supply voltage from a battery, and an engine configured to drive the vehicle by outputting engine torque, the apparatus comprising:
the control apparatus configured to acquire driving mode data which is calculated based on traffic information from a current position to a destination of the vehicle and dimension information of the vehicle, and control the vehicle to drive to the destination according to a driving mode which is determined by applying a travelling condition of the vehicle to the acquired driving mode data,
wherein a power distribution ratio of the motor torque to the engine torque is reflected in the driving mode data.

### Claim 2

A control apparatus for controlling a vehicle which includes a driving motor configured to drive the vehicle by outputting motor torque based on a supply voltage from a battery, and an engine configured to drive the vehicle by outputting engine torque, the apparatus comprising:
a driving mode data calculation unit configured to calculate driving mode data in which a power distribution ratio of the motor torque to the engine torque is reflected, based on traffic information from a current position to a destination of the vehicle and dimension information of the vehicle; and
a driving control unit configured to control the vehicle to drive to the destination according to a driving mode which is determined by applying a travelling condition of the vehicle to the driving mode data calculated by the driving mode data calculation unit.

### Claim 3 (depends on 2)

The control apparatus of claim 2, wherein the driving mode data calculation unit calculates a traffic speed profile as the traffic information by statistically analyzing the traffic speed from the current position to the destination of the vehicle, calculates required driving torque of the vehicle, which is required for securing the traffic speed profile, by applying a predefined vehicle dynamics algorithm to the calculated traffic speed profile, and calculates the driving mode data using a method of calculating the power distribution ratio capable of satisfying the calculated required driving torque.

### Claim 4 (depends on 3)

The control apparatus of claim 3, wherein the driving mode data calculation unit collects real-time traffic speed information at a current point of time and traffic speed history information at a past point of time corresponding to the current point of time, for a route from the current position to the destination of the vehicle, removes outliers as a measure of dispersion of the collected real-time traffic speed information and traffic speed history information, and then calculates, as the traffic speed profile, an average value of the real-time traffic speed information and traffic speed history information from which the outliers are removed.

### Claim 5 (depends on 3)

The control apparatus of claim 3, wherein the driving mode data calculation unit calculates the required driving torque by applying the traffic speed profile and a battery SOC (State of Charge) to the vehicle dynamics algorithm, and calculates the driving mode data using a method of specifying the power distribution ratio at which fuel efficiency is maximized, among a plurality of power distribution ratios capable of satisfying the calculated required driving torque, through a predefined dynamic algorithm.

### Claim 6 (depends on 5)

The control apparatus of claim 5, wherein the vehicle dynamics algorithm is an algorithm based on a longitudinal vehicle dynamics backward model, and the dynamic algorithm is an algorithm based on dynamic programming.

### Claim 7 (depends on 5)

The control apparatus of claim 5, wherein the driving mode data is calculated as a threshold of the traffic speed profile, a threshold of the battery SOC, and a threshold of the required driving power, which serve as reference values at which the driving mode of the vehicle is switched.

### Claim 8 (depends on 7)

The control apparatus of claim 7, wherein the driving control unit controls the vehicle according to a driving mode which is determined by applying the velocity of the vehicle, the battery SOC, and required driving torque requested by a driver, as the travelling condition of the vehicle, to the driving mode data.

### Claim 9 (depends on 1)

The control apparatus of claim 1, wherein the vehicle is a plug-in hybrid vehicle,
wherein the driving mode of the vehicle comprises an electric vehicle (EV) mode in which only the driving motor is driven and a hybrid electric vehicle (HEV) mode in which the driving motor and the engine are simultaneously driven.

### Claim 10

A method for controlling a vehicle which includes a driving motor configured to drive the vehicle by outputting motor torque based on a supply voltage from a battery, and an engine configured to drive the vehicle by outputting engine torque, the method comprising:
acquiring, by a driving control unit, driving mode data which is calculated based on traffic information from a current position to a destination of the vehicle and dimension information of the vehicle, wherein a power distribution ratio of the motor torque to the engine torque is reflected in the driving mode data;
deciding, by the driving control unit, a driving mode of the vehicle by applying a travelling condition of the vehicle to the acquired driving mode data; and
controlling, by the driving control unit, the vehicle to be driven to the destination according to the determined driving mode.

### Claim 11 (depends on 10)

The method of claim 10, wherein the driving mode data is calculated through the following steps:
calculating a traffic speed profile as the traffic information by statistically analyzing the traffic speed from the current position to the destination of the vehicle;
calculating required driving torque of the vehicle, which is required for securing the traffic speed profile, by applying a predefined vehicle dynamics algorithm to the calculated traffic speed profile; and
calculating the power distribution ratio capable of satisfying the calculated required driving torque.

### Claim 12 (depends on 11)

The method of claim 11, wherein calculating the traffic speed profile comprises:
collecting real-time traffic speed information at a current point of time and traffic speed history information at a past point of time corresponding to the current point of time, for a route from the current position to the destination of the vehicle;
removing outliers as a measure of dispersion of the collected real-time traffic speed information and traffic speed history information; and
calculating an average value of the real-time traffic speed information and traffic speed history information, from which the outliers are removed, as the traffic speed profile.

### Claim 13 (depends on 11)

The method of claim 11, wherein in calculating the required driving torque of the vehicle,
the required driving torque is calculated by applying the traffic speed profile and a battery SOC to the vehicle dynamics algorithm.

### Claim 14 (depends on 13)

The method of claim 13, wherein in calculating the power distribution ratio,
the power distribution ratio is calculated using a method of specifying the power distribution ratio at which fuel efficiency is maximized, among a plurality of power distribution ratios capable of satisfying the calculated required driving torque, through a predefined dynamic algorithm.

### Claim 15 (depends on 14)

The method of claim 14, wherein the vehicle dynamics algorithm is an algorithm based on a longitudinal vehicle dynamics backward model, and the dynamic algorithm is an algorithm based on dynamic programming.

### Claim 16 (depends on 14)

The method of claim 14, wherein the driving mode data is calculated as a threshold of the traffic speed profile, a threshold of the battery SOC, and a threshold of the required driving power, which serve as reference values at which the driving mode of the vehicle is switched.

### Claim 17 (depends on 16)

The method of claim 16, wherein in deciding the driving mode of the vehicle,
the driving control unit determines the driving mode by applying a velocity of the vehicle, the battery SOC, and required driving torque requested by a driver, as the travelling condition of the vehicle, to the driving mode data.

### Claim 18 (depends on 10)

The method of claim 10, wherein the vehicle is a plug-in hybrid vehicle,
wherein the driving mode of the vehicle comprises an electric vehicle (EV) mode in which only the driving motor is driven and a hybrid electric vehicle (HEV) mode in which the driving motor and the engine are simultaneously driven.
