KR102537876B1 - Method, apparatus, program and recording medium for controlling temperature of vehicle - Google Patents

Abstract

The embodiment includes receiving engine cooling unnecessary section information; and controlling the interior of the vehicle to supercooling prior to the engine cooling unnecessary section. By closing the flap of the room, it is possible to improve fuel efficiency through improved aerodynamics.

Description

Vehicle temperature control method, device, program and storage medium

Embodiments relate to a vehicle temperature control method, device, program, and storage medium, and more particularly, to a vehicle temperature control method, device, program, and storage medium for disabling an air conditioner compressor when engine cooling of a hybrid vehicle is unnecessary. It is about.

The system of a hybrid vehicle has an engine and a motor as a driving source for vehicle driving, and includes an inverter, a DC/DC converter, and a high-voltage battery for their operation, and a hybrid control unit (HCU) and motor control (MCU) as control means. Unit) and BMS (Battery Management System).

As is well known, the main driving modes of a hybrid vehicle based on this configuration are an electric vehicle mode, which is a pure electric vehicle mode using only motor power, and an engine rotational force as the main power while assisting the rotational force of the motor. It includes a hybrid electric vehicle, which is an auxiliary mode used as power.

In addition, research on a vehicle that runs using a CD driving mode accompanied by consumption of the battery charge amount and a CS driving mode for maintaining the battery charge amount continues.

As such, the high-voltage battery of the plug-in hybrid vehicle can be charged from an external power source, and there is a realistic limit to the pure electric mileage that can be traveled by the battery charge amount through external charging. Therefore, the driving battery exceeds the preset battery charge amount After driving in the CD driving mode that consumes the amount of charge (SOC), driving is performed in the CS driving mode driving mode that maintains the battery charge amount below the preset battery charge amount.

Hybrid vehicles can adjust the temperature inside the engine room by installing a flap that can be opened and closed between the radiator grill and the radiator. That is, the air resistance of the vehicle is reduced and driving stability is improved by closing the flaps during high-speed driving. In addition, when the temperature inside the engine room rises and there is a risk of overheating of parts, the temperature inside the engine room may be lowered by opening the flap.

Specifically, when the vehicle is started, the flap is closed to reduce the time required to raise the cold engine to a certain temperature, and the flap is closed to minimize air resistance since the inflow of outside air is unnecessary when the vehicle is running, but the engine room When the temperature rises and there is a risk of overheating of the part, the flap can be opened.

However, the above-described conventional vehicle temperature control method and apparatus have the following problems.

When the air conditioner compressor operates while the vehicle is in operation, it is necessary to open the flap to maintain the pressure of the refrigerant so that it acts like an outdoor unit. In this case, even when engine cooling is unnecessary, since the engine room is opened to cool the condenser, fuel efficiency of the vehicle may be reduced.

Embodiments are intended to solve the above-described problems, and embodiments are intended to provide a vehicle temperature control method, device, program, and storage medium that disables the air conditioner compressor and closes the engine room when engine cooling of a hybrid vehicle is unnecessary. .

The embodiment includes receiving engine cooling unnecessary section information; and controlling the interior of the vehicle to supercool before the engine cooling unnecessary section.

In a section where engine cooling is not required, the operation of the compressor of the air conditioner may be stopped and the air conditioner may be operated in a blowing mode.

In a section where engine cooling is not required, an engine room of the vehicle may be closed.

The vehicle temperature control method may further include receiving predetermined internal temperature information of the vehicle together with engine cooling unnecessary section information.

In the step of controlling the inside of the vehicle to supercooling, the internal temperature of the vehicle may be supercooled in consideration of predetermined internal temperature information of the vehicle and a change rate of the internal temperature of the vehicle.

The inside of the vehicle may be supercooled so as to maintain a predetermined internal temperature of the vehicle only in some of the intervals in which engine cooling is not required.

The partial section may be a section in which the average speed of the vehicle is the highest among the sections in which engine cooling is not required.

The vehicle is driven in one of the CD driving mode (charge depeleting: CD mode) driving the vehicle by consuming the battery charge amount and the CS driving mode (charge sustaining: CS mode) driving while maintaining the battery charge amount below a predetermined battery charge amount. can

An engine cooling unnecessary section may be included in the CD drive mode.

After the engine cooling unnecessary period ends, the CS driving mode may proceed.

Another embodiment is a cooling unit for adjusting the internal temperature of the vehicle; a first control unit that sets the vehicle to a CD driving mode in which the vehicle is driven by consuming the battery charge amount and a CS driving mode in which the vehicle is driven while maintaining the battery charge amount below a preset battery charge amount; and a second control unit controlling the cooling unit so that the inside of the vehicle is supercooled in a predetermined section.

The second control unit may receive information about an engine cooling unnecessary section of the vehicle, and control the cooling unit to supercool the inside of the vehicle before the engine cooling unnecessary section.

The control device of the vehicle further includes a navigation device provided in the vehicle, and the second control unit maintains a preset internal temperature of the vehicle only in a section in which the average speed of the vehicle is the highest among the sections in which engine cooling is not required. The interior of the vehicle can be supercooled.

The vehicle temperature control apparatus may further include a receiver configured to receive information on a preset internal temperature of the vehicle, and a calculation unit configured to calculate an overcooling temperature of the vehicle in consideration of a change rate of the internal temperature of the vehicle.

Another embodiment provides a program stored in a computer readable storage medium that realizes the above-described vehicle temperature control method through being executed by a processor.

Another embodiment provides a computer readable storage medium on which the above-described program is recorded.

The temperature control method, device, program, and storage medium of a vehicle according to the embodiment proceeds with supercooling control in advance to disable the air conditioner compressor at the time when engine cooling is unnecessary and close the flap in the engine room to improve fuel efficiency through aerodynamics can improve

1 is a diagram showing the configuration of an embodiment of a vehicle temperature control device;
2 is a diagram showing an embodiment of a method for controlling a temperature of a vehicle;
3A shows the concept of a temperature control method of a vehicle according to an embodiment,
3B to 3F show a temperature control method of a vehicle according to an embodiment.

The method and vehicle controllers disclosed in the following embodiments will be described in more detail with reference to the drawings. Terms disclosed in the following embodiments are only used to describe a specific example, but are not limited thereto.

In addition, terms such as 'include', 'have', 'arrange' or 'form' disclosed in the following embodiments indicate that the corresponding component may be inherent unless otherwise stated. That is, it should be understood as further including other components rather than excluding other components.

In addition, 'above', which is a singular expression used in the description and claims of the embodiments disclosed in the following embodiments, may be understood to include plural expressions as well, unless the context clearly indicates otherwise, and 'or/' and' should be understood to include any and all possible combinations of one or more of the related listed items.

1 is a diagram showing the configuration of an embodiment of a vehicle temperature control device, and FIG. 2 is a diagram showing an embodiment of a vehicle temperature control method.

Hereinafter, with reference to FIGS. 1 and 2 , a method and apparatus for controlling a temperature of a vehicle according to embodiments will be described. The vehicle temperature control method and apparatus according to the embodiment may be applied to a hybrid vehicle, and when engine cooling is unnecessary, the air conditioner compressor may be disabled and the engine room may be closed. can be made

An apparatus for controlling temperature of a vehicle according to an embodiment includes a cooling unit 300 that regulates the internal temperature of the vehicle, a CD driving mode in which the vehicle runs by consuming the charged amount of the battery of the vehicle, and maintains the charged amount of the battery below a predetermined charged amount of the battery. Receives the first control unit 100, which sets the CS driving mode 110 while driving, engine cooling unnecessary section information 210 and navigation 220 driving information, and cools the inside of the vehicle to supercool in a certain section A second control unit 200 for controlling the unit 300, a receiving unit 230 for receiving preset internal temperature information 240 of the vehicle, and calculating a supercooling temperature of the vehicle in consideration of a change rate of the internal temperature of the vehicle A calculation unit 250 may be included.

First, a vehicle, for example, a hybrid vehicle may be driven while being controlled by an existing air conditioning control method (S110). For example, the pure electric mileage (ARE) that can be driven in electric driving mode is calculated according to the charge amount of the high-voltage battery of the plug-in hybrid vehicle, the driving route is set by reflecting the driving conditions to the target point, and the driving route You can set the driving mode for each section. Specifically, the vehicle is driven in a CD driving mode (charge depleting: CD mode) in which the vehicle is driven by consuming the battery charge amount and in a CS driving mode (charge sustaining: CS mode) in which the vehicle is driven while maintaining the battery charge amount below a preset battery charge amount. can drive For example, an engine cooling unnecessary section of a vehicle, which will be described later, may be included in the CD drive mode.

3A illustrates a concept of a method for controlling a temperature of a vehicle according to an embodiment. As shown in FIG. 3A , the engine room of the vehicle may be opened and the interior of the vehicle may be supercooled prior to a section where engine cooling is not required. Also, in a section where engine cooling is not required, the engine room of the vehicle is closed and driven, and the internal temperature of the vehicle may gradually rise in this section. In addition, after a section where engine cooling is not required, the engine room of the vehicle is opened again to drive, and at this time, the internal temperature of the vehicle may decrease again or be maintained at a constant level. Here, the change in the internal temperature of the vehicle may rise, fall, or be maintained in the same pattern as the air temperature in the engine room of the vehicle, and the closing and opening of the engine room of the vehicle may be performed using a flap that can be opened and closed between the radiator grill and the radiator. It can be done by closing and opening of.

Hereinafter, a temperature control method of a vehicle according to an embodiment will be described in detail with reference to FIGS. 3B to 3F .

As shown in FIG. 3B , engine cooling unnecessary section information of the vehicle may be received (S120). At this time, together with engine cooling unnecessary section information (1), predetermined internal temperature information of the vehicle may be received. Here, the predetermined internal temperature information of the vehicle may be set by an occupant of the vehicle, such as a driver or a passenger, or may be automatically set.

And, as shown in FIG. 3C , a corresponding supercooling temperature may be calculated before supercooling the inside of the vehicle (S130). That is, it is possible to predict or calculate a change in the internal temperature of the vehicle in a section where engine cooling is not required, which will be described later, in consideration of the vehicle's internal temperature, external temperature, and amount of sunlight.

That is, when the engine room is closed and the vehicle is driven in a section where engine cooling is not required, since the internal temperature of the vehicle and the temperature of the engine room will rise, the calculation unit 240 considers the internal temperature information 240, etc. It is possible to predict an expected temperature rise in a cooling-unnecessary section, and to cool the inside temperature of the vehicle in advance by the predicted increase.

And, as described above, it is determined whether the vehicle has entered the predicted or calculated supercooling control section (S140), and if it has not entered the supercooling control section (No), the existing air conditioning control can be continued (S110).

When the vehicle enters the supercooling control section (Yes), supercooling control is performed as shown in FIG. 3D (S150). That is, by operating the cooling unit 300 such as an air conditioner provided in the vehicle, the temperature inside the vehicle may be cooled by the expected increase.

Then, it is determined whether the vehicle has entered an engine cooling unnecessary section (S160).

If the vehicle has not entered the engine cooling unnecessary section (No), the overcooling control of the vehicle may be continued since the vehicle has not yet been sufficiently cooled (S150).

If the vehicle enters a section where engine cooling is not required (Yes), the operation of the compressor of the air conditioner may be stopped and the air conditioner may be operated in a blowing mode (S170). In addition, the engine room of the vehicle may be closed in a section where engine cooling is not required.

At this time, when the vehicle passes through a section where engine cooling is not required, the internal temperature of the engine room and the internal temperature may gradually rise as shown in FIG. 3D . In addition, it is determined whether the internal temperature of the engine room or vehicle has risen by a certain temperature (S180), and if it is determined that the engine cooling unnecessary section has passed (Yes), the existing air conditioning control can be resumed (S110). For example, You can proceed to CS driving mode. At this time, the engine room of the vehicle is opened, the temperature or internal temperature of the engine room decreases, and the operation of the air conditioner may be turned on.

If it is judged that the engine cooling-free section has not yet passed (No), that is, if the internal temperature of the engine room or vehicle has not yet risen sufficiently, the action of the compressor of the air conditioner of the vehicle is stopped again and the air conditioner is set to blow mode. It can operate (S170).

In addition, when the period in which engine cooling of the vehicle is not required is too long, as shown in FIG. 3E , the inside of the vehicle may be supercooled so as to maintain the predetermined internal temperature of the vehicle only in some intervals based on the predetermined internal temperature. In this case, in some sections, the temperature of the engine room or internal temperature may be maintained within a minimum/maximum temperature range based on a predetermined temperature in the vehicle within a range that does not impede the air conditioning performance of the vehicle.

Here, as shown in FIG. 3F , the above-described partial section may be a section in which the average speed of the vehicle is the highest among sections in which engine cooling is not required. That is, if a section with a high average speed is designated as an engine cooling-free section based on the average speed for each section received from the navigation 220, a significant fuel consumption reduction effect can be secured.

The above-described vehicle temperature control method is recorded on a computer-readable recording medium, and may be recorded as a program in which the above-described vehicle temperature control method is implemented by a processor.

The above-described vehicle temperature control method, device, program, and storage medium perform supercooling control in advance to disable the air conditioner compressor at the time when engine cooling is unnecessary and close the engine room flap to improve fuel efficiency through aerodynamic improvement. can

It is obvious to those skilled in the art that the embodiments disclosed above may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

Accordingly, the foregoing description should not be construed as limiting in all respects and should be considered illustrative. The scope of this embodiment should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent range of this embodiment are included in the scope of this embodiment.

100: first controller 110: driving mode
200: Second controller 210: Engine cooling unnecessary section information
220: navigation 230: receiver
240: internal temperature information 250: calculation unit
300: cooling unit

Claims (16)

Receiving engine cooling unnecessary section information; and
and controlling the interior of the vehicle to supercool before the engine cooling unnecessary section. According to claim 1,
A temperature control method of a vehicle in which an operation of a compressor of an air conditioner is stopped and the air conditioner is operated in a blowing mode in the engine cooling unnecessary section. According to claim 2,
In the engine cooling unnecessary section, closing the engine room of the vehicle temperature control method of the vehicle. According to claim 1,
and receiving predetermined internal temperature information of the vehicle together with the engine cooling unnecessary section information. According to claim 4,
The step of controlling the interior of the vehicle by supercooling,
The vehicle temperature control method of supercooling the internal temperature of the vehicle in consideration of predetermined internal temperature information of the vehicle and a change rate of the internal temperature of the vehicle. According to claim 5,
The vehicle temperature control method of controlling the interior of the vehicle by supercooling so as to maintain a predetermined internal temperature of the vehicle only in some sections among the engine cooling unnecessary sections. According to claim 6,
The partial section is a section in which the average speed of the vehicle is the highest among the sections where engine cooling is not required. According to claim 1,
The vehicle drives in one of a CD driving mode (charge depleting: CD mode) in which the vehicle is driven by consuming the battery charge amount and a charge sustaining (CS mode) in which the vehicle is driven while maintaining the battery charge amount below a predetermined battery charge amount. How to control the vehicle's temperature. According to claim 8,
The engine cooling unnecessary section is included in the CD driving mode. According to claim 8,
The temperature control method of the vehicle proceeding with the CS driving mode after the engine cooling unnecessary period ends. A cooling unit that adjusts the internal temperature of the vehicle;
a first control unit that sets the vehicle to a CD driving mode in which the vehicle is driven by consuming the battery charge amount and a CS driving mode in which the vehicle is driven while maintaining the battery charge amount below a preset battery charge amount; and
A second control unit controlling the cooling unit so that the inside of the vehicle is supercooled in a certain section;
The second control unit,
An apparatus for controlling a temperature of a vehicle for receiving engine cooling-requiring section information of the vehicle and controlling the cooling unit to supercool the inside of the vehicle before the engine-cooling-requiring section. delete According to claim 11,
Further comprising a navigation provided in the vehicle,
The second control unit,
The vehicle temperature control device controls the interior of the vehicle to be supercooled so as to maintain a predetermined internal temperature of the vehicle only in a section in which the average speed of the vehicle is the greatest among the sections in which engine cooling is not required. According to claim 11,
The temperature control device for a vehicle further comprising a receiving unit that receives information on the predetermined internal temperature of the vehicle and a calculation unit that calculates a supercooling temperature of the vehicle in consideration of a change rate of the internal temperature of the vehicle. A program stored in a computer readable storage medium for realizing the temperature control method of a vehicle according to any one of claims 1 to 10 through being executed by a processor. A computer readable storage medium on which the program according to claim 15 is recorded.

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