KR20180032371A - Apparatus and method for scheduled vehicle charging - Google Patents

Abstract

A vehicle reservation charging method comprises the following steps of: checking a type of a charging device connected to a vehicle storing reservation information for charging; performing reserve charging by using the charging device during a preset period of time; checking charging power supplied during the reserve charging; determining predicted charging time in correspondence with the charging power; determining charging start time in correspondence with the predicted charging time and reservation information; and charging a battery loaded in the vehicle at the charging start time.

Description

[0001] APPARATUS AND METHOD FOR SCHEDULED VEHICLE CHARGING [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle pre-charging method and apparatus, and more particularly, to a vehicle pre-charging method and apparatus for charging and discharging vehicles, which can determine charging start time dynamically, ≪ / RTI >

Hybrid vehicles and electric vehicles are known to people as eco-friendly cars. Typically, a hybrid vehicle may be defined as a vehicle having two or more power sources, such as an engine and a motor, and an electric vehicle may be defined as a vehicle using a pure battery. The hybrid vehicle can turn the generator during the running of the vehicle to self-charge the battery and turn it into driving energy. In particular, a hybrid vehicle uses a regenerative braking brake system to convert the kinetic energy of an electric motor, which rotates reversely when the vehicle decelerates, into electric energy, stores it in a battery, and uses energy stored during driving to improve energy efficiency.

An electric vehicle is a vehicle that uses a high-voltage battery instead of a motor instead of an engine, unlike a conventional internal combustion engine. A major feature of EVs is that they charge differently from internal combustion engine vehicles. The charging system for charging the battery of the electric vehicle can be implemented in various forms. For example, with fast charge / fast charge, the energy required for driving is charged to the high voltage battery and used for driving. There is also an on-board charger (OBC) which is mounted on a vehicle and converts the supplied AC power into DC to charge the battery. Since the on-board charger is mounted on the vehicle and operated, it is essential to control it through communication with other controllers in the vehicle. In addition to securing reliability as a vehicle component, it is important to improve the power density by reducing size and weight.

On the other hand, in order to increase the convenience, the vehicle charging system can provide a reserve charging function. The Reserve Charge function helps the charging process to be performed at a preset time for charging the car and the AC charging system. On the other hand, when the reserved charging function is not used, a passive charging process can be performed through an operation such as pressing a start button so that the user can connect the vehicle and the charging device and perform the charging process.

KR 10-2014-0108987A

The present invention proposes a method for charging a battery in a vehicle in accordance with reservation information set by a user, comprising the steps of: confirming a charging power that the vehicle can receive from the charging device, calculating a charging estimated time according to charging power, It is possible to provide an electric vehicle reservation charging apparatus and method capable of determining the charging start time of the vehicle so as to correspond to the reservation information based on the time.

In addition, the present invention can prevent the battery in the vehicle from being fully charged by checking the charging power supplied from the charging device connected to the vehicle and anticipating the estimated charging time, in comparison with the vehicle charging performed arbitrarily according to the reservation information set by the user It is possible to provide a device and a method capable of automatically adjusting the charging start time.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

The method for reserving a vehicle according to an embodiment of the present invention includes: checking the type of a charging device connected to a vehicle storing reservation information for charging; Performing preliminary charging for a predetermined time using the charging device; Confirming a charging power supplied during the preliminary charging; Determining a charging expected time corresponding to the charging power; Determining a charging start time corresponding to the charging expected time and the reservation information; And charging the battery mounted in the vehicle at the charging start time.

In addition, the vehicle reserved charging method may further include requesting or approving a charge for use of the charging device.

The checking of the type of the charging device may include receiving a control pilot signal from the charging device; Checking a duty ratio or a duty cycle of the control pilot signal; And determining the type of the charging device according to the application rate.

In addition, depending on the application rate, the charging device may be classified as a portable type including a stationary or an in-cable-control box (ICCB).

In addition, it is also possible that the charging device has a first level (Level 1) using an AC power plug of 120 V and a second level (Level 2) using an AC power plug of 240 V or 208 V according to the application ratio It can be judged that it supports AC power.

In addition, the preset time may be one minute.

Also, the charging power may be a sum of the amount of power delivered during the predetermined period of time.

The estimated charging time may be a time required to calculate a total charging power amount for buffering the battery corresponding to the charging state of the battery and to supply the total charging power amount with the charging power.

In addition, the reservation information may include a user's preference based on billing information according to the vehicle usage time or vehicle departure time set by the user, and the time zone of the charge power that can be supplied from the charging device.

Further, the billing information may vary according to the type of the charging device and the time zone.

The determining of the charge start time may include determining a charge available time zone based on the vehicle start time and the user preference; Determining whether the expected charging time is included in the chargeable time zone; And determining the time corresponding to the user preference as the charge start time if the charge estimate time is included in the chargeable time zone.

The determining of the charging start time may further include determining a time before the estimated charging time from the vehicle departure time as the charging start time if the estimated charging time is not included in the chargeable time zone can do.

The computer readable recording medium according to another embodiment of the present invention may include an application program that realizes the above-described vehicle reservation charging method through execution by a processor.

According to another aspect of the present invention, there is provided a vehicle reservation charging apparatus including: a storage unit for storing reservation information for charging; A charging unit that confirms the type of the charging device connected to the vehicle and performs preliminary charging for a predetermined time using the charging device; And a control unit for checking a charging power supplied during the preliminary charging, determining a charging expected time corresponding to the charging power, and determining a charging start time corresponding to the charging estimated time and the reservation information, May charge the battery mounted in the vehicle at the charging start time.

The control unit may include an electronic control unit (ECU) for controlling the vehicle, a battery management system (BMS) for managing the battery, an on-board charger for charging the battery, OBC). ≪ / RTI >

In addition, the control unit may request or approve the charge for use of the charging device.

The charging unit may receive a control pilot (CP) signal from the charging device, check a duty ratio or a duty cycle of the control pilot signal, The type of device can be determined.

In addition, depending on the application rate, the charging device may be classified as a portable type including a stationary or an in-cable-control box (ICCB).

In addition, it is also possible that the charging device has a first level (Level 1) using an AC power plug of 120 V and a second level (Level 2) using an AC power plug of 240 V or 208 V according to the application ratio It can be judged that it supports AC power.

In addition, the preset time may be one minute.

Also, the charging power may be a sum of the amount of power delivered during the predetermined period of time.

The estimated charging time may be a time required to calculate a total charging power amount for buffering the battery corresponding to the charging state of the battery and to supply the total charging power amount with the charging power.

In addition, the reservation information may include a user's preference based on billing information according to the vehicle usage time or vehicle departure time set by the user, and the time zone of the charge power that can be supplied from the charging device.

Further, the billing information may vary according to the type of the charging device and the time zone.

The controller may determine a chargeable time zone based on the vehicle departure time and the user preference, determine whether the estimated charge time is included in the chargeable time zone, and determine whether the estimated charge time is included in the chargeable time zone , It is possible to determine the time corresponding to the user preference as the charging start time.

In addition, when the estimated charging time is not included in the chargeable time zone, the controller may determine the time before the estimated charging time as the charging start time from the vehicle departure time.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And can be understood and understood.

The effect of the device according to the present invention will be described as follows.

The present invention can dynamically determine the charging start time upon reservation charging according to the reservation information set by the user, so that the battery installed in the vehicle can be fully charged.

In addition, the present invention can increase the user satisfaction with the reserved charging function by determining the charging expected time after confirming the charging power that can be supplied differently for each charging apparatus.

The effects obtainable by the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. It is to be understood, however, that the technical features of the present invention are not limited to the specific drawings, and the features disclosed in the drawings may be combined with each other to constitute a new embodiment.
Fig. 1 illustrates a first example in which a battery installed in a vehicle is charged in advance.
Fig. 2 illustrates a method of pre-charging a battery mounted in a vehicle.
Figure 3 illustrates a method for determining the charge start time.
Fig. 4 illustrates a second example of charging a battery mounted in a vehicle.
5 illustrates an apparatus for charging a battery installed in a vehicle.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus and various methods to which embodiments of the present invention are applied will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

In the description of the embodiments, when it is described as being formed on the "upper" or "lower" of each element, the upper or lower (lower) And that at least one further component is formed and arranged between the two components. Also, the expression "upward" or "downward" may include not only an upward direction but also a downward direction with respect to one component.

The higher the ratio of procuring the energy required for vehicle operation from a battery in an environmentally friendly vehicle (for example, a hybrid vehicle, an electric vehicle, etc.), or the performance of the vehicle is enhanced, the more the energy storage capacity Can be continuously increased. When the capacity of the battery included in the vehicle is increased, the charging time of the battery may become longer. Therefore, there is a need for a method and apparatus for charging a large capacity battery in a short period of time or for efficiently charging the battery in accordance with a usage pattern of a user, because it weakens the mobility of the vehicle. However, devices capable of rapid charging of large capacity batteries can be expensive to build infrastructure for powering the vehicle, as well as chargers mounted on the vehicle. Accordingly, a method using an on-board charger (OBC) which can charge a battery in a vehicle with a household power source by mounting the charger directly on the vehicle is used.

For example, since a vehicle-mounted charger (OBC) is mounted on a vehicle, high power density and low noise are required, and thus a high switching frequency is required. Further, since it is related to the energy efficiency of the whole vehicle, high efficiency is required for the in-vehicle charger (OBC). In addition, for compatibility between the charging infrastructure and the onboard battery, the onboard charger (OBC) needs to have a universal input voltage range (100Vac to 240Vac) and a wide battery voltage range (220Vdc to 420Vdc) . Recently, as the capacity of the battery mounted on the vehicle has increased, the platform of the charger for charging the battery has also been upgraded from 3.3 kW to 6.6 kW. In addition, the capacity of the platform may increase in the future to shorten the charging time of the battery mounted in the vehicle.

A charging device capable of charging a vehicle can be roughly classified into a slow charging device that supplies AC power and a fast charger that supplies DC power. Here, the high-speed charger can be installed in a place with a lot of traffic or a place such as a public charging station. For example, a fast charger can charge a battery in a vehicle as long as it can travel 60 to 80 miles for about 20 minutes of charging. On the other hand, the fast charger supplies alternating current, and when charging for about one hour, it can charge the battery in the vehicle as much as 2 to 5 miles or 10 to 20 miles.

Compared with a charging device for supplying DC power, a charging device for supplying AC power can be installed in a home / personal use or a building (apartment, etc.) because the installation cost is relatively low. On the other hand, when the vehicle is charged using a charging device that supplies AC power, it takes about 4 to 6 hours to charge the vehicle, so it is very important to efficiently charge the vehicle. For this purpose, the reserved charging function may be provided to allow the vehicle to be charged at a time when the driver or the user is not driving the vehicle.

For example, if the vehicle is set to be charged between midnight and 6 am through the reserved charging function, the driver or the user parks the car in a place for charging before midnight, The vehicle can charge the battery in the vehicle in conjunction with the charging device by itself at midnight. If the user connects the charging device and the vehicle during the time set by the reserved charging function, charging can be performed immediately without waiting time.

A recent review of the proposed charging function allows charging of a battery mounted in a vehicle in a similar but different manner for each vehicle manufacturer. For example, a reservation charging function provided in a vehicle of a certain type is implemented so that a charging start time and an ending time can be selected in a multimedia system (eg, an AVN) in a vehicle. Use the method to start and end the charge once an hour. On the other hand, the reserved charging function provided by another brand vehicle calculates the time required for charging the vehicle by selecting the departure time and the low charge time zone, and calculates the charging time (SOC), the connector closing time, And the start time is arbitrarily set to start. One of the main reasons why the various charging methods are applied is that it allows the user to charge the low-cost electricity bills in the middle of the night.

On the other hand, a reservation charging function can be implemented variously in vehicles produced by the same manufacturer. For example, the Soul electric car has been mass-produced to set the charge start time and the end SOC. In the case of the Ionic electric car, the car can calculate the charge start time through the current departure time and the low charge time band setting .

There may be the following problems in the above-described reservation charging of the vehicle. For example, accurate computation is important for a vehicle to which the charging start time calculation method of the vehicle using the low charge time zone and the departure time setting applied to the Ionic electric vehicle is applied. Since the vehicle needs to calculate using the set information and the vehicle state value rather than the method of charging the vehicle within the time band set by the user arbitrarily, if the calculation is wrong, For example, fully charged may not be achieved. It is difficult to determine an accurate charging start time because the amount of charging current input varies depending on the type of charger connected to the vehicle and the amount of charging power supplied from the charger.

Fig. 1 illustrates a first example in which a battery installed in a vehicle is charged in advance.

As shown in the figure, in order to charge the battery mounted in the vehicle, the reservation information for charging can be set first. The user can input reservation information (e.g., vehicle departure time, low fare time zone, etc.) necessary for charging the vehicle through a user interface provided in a multimedia system mounted on the vehicle or the like. The vehicle may store the charging related reservation information entered by the user (12).

Thereafter, the vehicle can confirm whether a charger (charging device) capable of supplying charging power to the vehicle is connected (14). For example, the user or the driver can place the vehicle in a place where it can be charged, and connect the charging device and the vehicle through a charging cable. Further, in the case of wireless charging, when the charging device and the vehicle are located within a predetermined distance, the charging device and the vehicle can recognize existence of each other.

Here, the electric vehicle supply equipment EVSE (EVSE) transfers electric energy from a power source to charge a battery mounted on an electric vehicle (EVs), and it ensures a proper and safe flow of electric power / current Should be able to. The charging device (EVSE) can be classified into several types based on the speed of charging the battery mounted on the vehicle. First, an AC charging device that supplies AC power (Alternating-Current (AC) Electricity) uses a first level (Level 1) using an AC power plug of 120 V and a second level (Level 1) using an AC power plug of 240 V or 208 V Level 2). ≪ / RTI > On the other hand, the DC charging device that supplies the DC electric power can charge the battery mounted on the vehicle at a higher speed than the AC charging device. For example, the DC charging device can receive 480 V AC power, convert it to DC power, and supply it to the vehicle.

The charging device (EVSE) may be used as a public use or a private use. Typically, a charging device (EVSE) is divided into a stationary device permanently connected to receive electricity and a portable device including an in-cable-control box (ICCB) . For example, the stationary type charging device may include a tower type device installed in a charging station or a public, private parking lot. On the other hand, the portable device can charge the vehicle by connecting a portable cable and a controller (in-cable-control box, ICCB) to a power supply supporting the charging of the vehicle (for example, a 110V or 220V electrical outlet).

Once the charger is connected, the vehicle can estimate the type of charger connected to it based on the CP signal duty-ratio or duty-cycle of the control pilot signal transmitted from the connected charger ). For example, when the duty ratio of the control pilot (CP) signal included in the charge information is 50% or more, the charging unit mounted on the vehicle can identify the charging apparatus as a stationary charging apparatus. On the other hand, when the application rate of the control pilot (CP) signal included in the charge information is less than or equal to 25%, the charging unit mounted on the vehicle may be a portable type including a mobile cable and a controller (in-cable-control box, ICCB) can be identified as a portable charging device.

When the type of the charger is confirmed, the estimated charging time can be calculated in consideration of the charging current that can be supplied by the charger, the state of charge (SOC) of the battery mounted on the vehicle, and the temperature of the battery.

Then, the vehicle can determine and store the reserved charging start time by combining the estimated charging time and the reservation information set by the user (20).

When the charging start time is determined, the device, the controller, etc. used to charge the battery is kept in a sleep mode (22) until the charging start time, and the device, the controller, etc. are waken (Yes in step 20). If the charge start time has not arrived, the device, controller, etc. used to charge the battery can maintain a sleep mode (No in step 20).

When the charge start time comes, the device, controller, etc. used to charge the battery are waken up and the reserve charge operation can be started (22).

In the above-described example, information for reserving charging is set, and the charger type is checked by checking the duty ratio of the control pilot (CP) signal of the charger when the charger is connected. For example, if the duty ratio of the control pilot (CP) signal is 23% or more, it can be estimated as a fixed type charging device (EVSE), and if it is less than 23%, it can be estimated as a portable charging device (ICCB). The duty ratio of the control pilot (CP) signal may be different for each vehicle charge current value, and the reference value may be set differently depending on the vehicle. After confirming the type of charger according to the reference value, the charging current delivered in the case of a fixed charging device (EVSE) can be estimated to be about 30A, and the transmitted charging power can be estimated to be about 6.6Kw / h. On the other hand, in the case of the mobile type charging device (ICCB), the charge current to be delivered can be estimated to be about 10 A, and the charge power to be delivered can be estimated to be about 2.2 Kw / h. This is an estimate of the amount of electric power that can be supplied depending on the type of the charging device (charging device), not the charging current or charging electric power actually supplied by the charger (charging device) connected to the vehicle. Lt; / RTI >

The battery management system (BMS) calculates the estimated charging time and the vehicle controller (VCU) calculates the scheduled charging start time based on the estimated power estimated from the onboard charger (OBC). However, since the charger (charging device) connected to the vehicle does not know the exact charging power to be delivered to the vehicle, it can not accurately calculate the time required for charging. Therefore, when the estimated charging current or charging power can not be supplied from the charger, It may happen that the battery installed in the vehicle is not fully charged through the reserved charging function.

Fig. 2 illustrates a method of pre-charging a battery mounted in a vehicle.

As shown in the figure, a method of reserving a battery installed in a vehicle includes a step 32 of checking the type of a charging device connected to a vehicle storing reservation information for charging, A step 38 of checking the charging power supplied during the preliminary charging, a step 40 of determining a charging estimation time corresponding to the charging power, a step 40 of starting charging in response to the charging estimation time and the reservation information, Determining a time 42, and charging 44 the battery mounted in the vehicle at the charging start time.

In addition, the method of reserving a battery installed in a vehicle may further include a step (34) of requesting or approving a charge for use of the charging device.

Specifically, although not shown, step 32 of verifying the type of the charging device includes receiving a control pilot (CP) signal from the charging device, determining a duty-ratio or duty-cycle ), And determining the type of the charging device according to the application ratio. For example, depending on the application rate, the charging device can be classified as either stationary or portable including an in-cable-control box (ICCB). Also, depending on the application ratio, the charging device may be connected to two types of AC power sources including a first level (Level 1) using an AC power plug of 120V and a second level (Level 2) using an AC power plug of 240V or 208V And the like.

Confirmation of the rate of use of the control pilot signal may be based on the reference value set in the vehicle. For example, if the reference value of the vehicle is set to 23%, it can be determined whether the rate of the control pilot signal transmitted from the connected charging device exceeds or exceeds the reference value.

In addition, the preset time for performing the preliminary charging may be about one minute. The charging power supplied from the charging device may be a sum of the amount of power delivered during the predetermined time, and the estimated charging time may be calculated by calculating a total charging power amount for buffering the battery corresponding to the charging state of the battery mounted on the vehicle, (I.e., can be consumed) to supply the total charging power with electric power.

The time for performing the preliminary charging need not be unnecessarily long. If the pre-charge time is prolonged, the user or the driver may increase the power charge upon charging. It is preferable that a time of about 1 minute is appropriate for accurately calculating the charging electric power delivered from the charging device without significantly affecting the electric power charge to be paid by the user, and it is preferable that the charging electric power is not exceeded for a maximum of 5 minutes. On the other hand, the time for performing the preliminary charging may be set at the time of vehicle delivery or may be changeable according to the user's preference.

The reservation information stored by the vehicle may include a user's preference based on charging information according to the vehicle usage time or the vehicle departure time set by the user, and the time zone of the charging power that can be supplied from the charging device. Here, the charging information may vary depending on the type of the charging device and the charging time zone.

Referring to FIG. 2, the vehicle reserved charging method checks an accurate charging power transmitted from a charger (charging device) connected to a vehicle through a pre-charge at the time of engaging the charger before proceeding to actual reservation charging, And a control circuit may be included. Depending on the type of the charger, depending on the type of the charger, the charger connected to the vehicle can supply different power depending on the power source of the field where the charging is performed, and it can be supplied to a pre- It is difficult to calculate the estimated charging time by calculating the estimated charging time using the estimated power according to the estimated charging time. In this case, the user may not charge as much as desired according to the reserved charging.

For example, a user or a driver may wish to use a reserve charging function by connecting a mobile cable and controller (ICCB) mounted on a vehicle trunk to a wall power source in the hotel while traveling, It is assumed that the wall of the hotel connecting the ICCB is connected to the hotel laundry room. In a place where power consumption is high, such as in a hotel laundry room, a voltage drop may occur after the reserve charge starts. If the power supplied to a certain area is used in various places, the power supplied to the other device due to the power consumption of the specific device may be reduced. If a voltage drop occurs after the start of the reserve charge, the actual time to charge may increase, and the user wishes to fully charge the battery installed in the vehicle and uses the reserve charge function, but actually the battery is not fully charged A situation that can not be achieved can occur. In order to overcome such a problem, when the charger connected to the vehicle is detected, pre-charge is performed to confirm whether there is a problem such as voltage drop. If a problem such as a voltage drop occurs in the charger (charging device), the charging reservation time can be more accurately determined based on the actual amount of power (charging power, charging current) that can be supplied through the charger.

Figure 3 illustrates a method for determining the charge start time.

As shown, a method for determining a charge start time includes determining 52 a chargeable time zone based on the vehicle departure time and user preferences, determining 54 whether the charge expected time is included in the chargeable time zone, And determining (56) the time corresponding to the user's preference as the charging start time, if the expected charging time is included in the charging available time zone.

The method for determining the charge start time may further include determining (58), as the charge start time, the time before the expected charge time from the vehicle departure time when the estimated charge time is not included in the chargeable time zone have.

When the estimated charging time is calculated based on the charging power transmitted from the charger (charging device) connected to the vehicle, the vehicle should be able to be charged according to the user's preference. For example, the more the battery in the vehicle is buffered in accordance with the vehicle departure time included in the reservation information set by the user, the higher the satisfaction of the user. In addition, if the charging charge can be changed according to the time when the in-vehicle battery is charged, the charging start time can be determined so that the in-vehicle battery can be buffered, but cheaper charging can be applied. On the other hand, the charging time period according to the previously stored user preference may be determined according to not only buffering charge, charging but also various users' preferences.

Fig. 4 illustrates a second example of charging a battery mounted in a vehicle.

As shown in the figure, in order to charge the battery mounted in the vehicle, the reservation information for charging can be set first. The user can input reservation information (e.g., vehicle departure time, low fare time zone, etc.) necessary for charging the vehicle through a user interface provided in a multimedia system mounted on the vehicle or the like. The vehicle may store charging-related reservation information entered by the user (62).

Thereafter, the vehicle can confirm whether a charger (charging device) capable of supplying charging power to the vehicle is connected (64). For example, the user or the driver can place the vehicle in a place where it can be charged, and connect the charging device and the vehicle through a charging cable. Further, in the case of wireless charging, when the charging device and the vehicle are located within a predetermined distance, the charging device and the vehicle can recognize existence of each other.

When the charger is connected, the vehicle can confirm the type of the connected charger based on the CP signal duty-ratio or duty-cycle of the control pilot signal transmitted from the connected charger [66] .

Once the charger type is confirmed, the vehicle may request or authorize charging (68) for the charging power for the reserve charge.

Thereafter, pre-charging can be performed using the connected charger (70). For example, a pre-charge can be performed for about one minute.

The vehicle can accurately determine the charging power supplied from the charger during the preliminary charging (72).

When the charging power that can be supplied from the charger is confirmed, the charging estimated time can be calculated in consideration of the charging current that can be supplied by the charger, the state of charge (SOC) of the battery mounted on the vehicle, the temperature of the battery, (74).

Thereafter, the vehicle can determine and store the reserved charging start time by combining the estimated charging time and the reservation information set by the user (76).

When the charge start time is determined, the device, controller, etc. used to charge the battery is maintained in a sleep mode (78) until the charge start time, and the device, controller, etc. are waken (Yes in step 80). If the charge start time has not arrived, the device, controller, etc. used to charge the battery can maintain a sleep mode (No in step 80).

When the charge start time comes, the device, controller, etc. used to charge the battery are waken up and a reserve charge operation can be started (82).

In the above-described example, the charge estimation time can be calculated more accurately by more accurately checking the charge power that can be supplied from the charger connected to the vehicle.

5 illustrates an apparatus for charging a battery installed in a vehicle.

As shown in the figure, the vehicle reserved charging device 90 is connected to the charging device 100 and can receive the charging power 4 from the charging device 100. [ At this time, the charging power 4 may be transmitted according to a wire / wireless communication method, and may be supplied in the form of an AC power source or a DC power source. Further, the vehicle reserved charging device 90 can supply the charging current 6 to the battery 98 mounted in the vehicle. The charging current 6 supplied to the in-vehicle battery 98 may be in the form of a DC power source.

The vehicle reservation charging device 90 includes a storage unit 96 for storing reservation information for charging, a type of charging device 100 connected to the vehicle, and a charging device 100, And a control unit 92 for determining a charging start time corresponding to the charging time and a charging start time corresponding to the reservation information, 94). Here, the charging unit 92 can charge the battery 98 mounted in the vehicle at the charging start time.

Here, the control unit 94 includes an electronic control unit (ECU) for controlling the vehicle, a battery management system (BMS) for managing the battery, an on-board charger (OBC ). ≪ / RTI > Also, the control unit 94 may be mounted on the vehicle as an independent module. The module for controlling the charging power during the preliminary charging includes a module for calculating the estimated charging time based on the determined charging power, In the management system (BMS), modules for determining the charging start time based on the estimated charging time may be included in the vehicle controller (VCU), respectively.

In addition, the control unit 94 can request or approve the charge for use of the charging device 100. [

The charging unit 92 capable of sensing the charging device 100 receives a control pilot signal from the charging device 100 and then generates a duty ratio or duty- cycle), and the type of the charging device can be determined according to the application rate. For example, the charger 92 can determine whether the charger 100 is portable, including a stationary or an in-cable-control box (ICCB), according to the application rate. The charging unit 92 also includes a second level (Level 1) using the AC power plug of 120V and a second level (Level 2) using the AC power plug of 240V or 208V depending on the application ratio Can be used to determine which of the two types of AC power sources is supported.

Further, the pre-charging performed through the charging unit 92 can be performed for about one minute. The charging power transmitted from the charging device 100 is the sum of the amount of power delivered for a predetermined period of time (e.g., one minute). The estimated charging time may be a time required to calculate the total charging power amount for buffering the battery in response to the charging state of the battery, and then to supply the total charging power amount by the charging power.

The reservation information stored in the storage unit 96 may include a user's preference according to a billing information according to a vehicle usage time or a vehicle departure time set by the user or a time zone of charge power that can be supplied from the charging device 100 . Here, the charging information may vary depending on the type and the time zone of the charging apparatus 100. [

On the other hand, the controller 94 determines the chargeable time zone based on the vehicle departure time and the user preference, and determines whether the estimated charge time is included in the chargeable time zone. If the estimated charge time is included in the chargeable time zone, Can be determined as the charging start time. In addition, when the expected charging time is not included in the chargeable time zone, the control unit 94 may determine the time before the estimated charging time from the vehicle departure time as the charging start time.

The method according to the above-described embodiments may be implemented as a program to be executed by a computer and stored in a computer-readable recording medium. Examples of the computer-readable recording medium include a ROM, a RAM, a CD- , A floppy disk, an optical data storage device, and the like, and may also be implemented in the form of a carrier wave (for example, transmission over the Internet).

The computer readable recording medium may be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner. And, functional program, code, and code segments for implementing the above-described method can be easily inferred by programmers in the technical field to which the embodiment belongs.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

90: Vehicle reservation charging device 100: Charging device
92: charging unit 94: control unit
96: Storage part 98: Battery

Claims (26)

Confirming the type of the charging device connected to the vehicle storing the reservation information for charging;
Performing preliminary charging for a predetermined time using the charging device;
Confirming a charging power supplied during the preliminary charging;
Determining a charging expected time corresponding to the charging power;
Determining a charging start time corresponding to the charging expected time and the reservation information; And
Charging the battery mounted in the vehicle at the charging start time
And charging the vehicle. The method according to claim 1,
Requesting or approving a charge for use of the charging device
Further comprising the steps of: The method according to claim 1,
The step of confirming the type of the charging device
Receiving a control pilot (CP) signal from the charging device;
Checking a duty ratio or a duty cycle of the control pilot signal; And
Determining the type of the charging device according to the application rate
Further comprising the steps of: The method of claim 3,
Wherein the charging device is portable according to the application rate, the portable device including a stationary or an in-cable-control box (ICCB). The method of claim 3,
(2) using a first level (Level 1) using an AC power plug of 120 V and a second level (Level 2) using an AC power plug of 240 V or 208 V according to the application ratio, A method for charging a vehicle reservation. The method according to claim 1,
Wherein the predetermined time is one to two minutes. The method according to claim 1,
Wherein the charging power is a sum of the amount of electric power delivered during the predetermined period of time. 8. The method of claim 7,
Wherein the estimated charging time is a time required to calculate a total charging power amount for buffering the battery corresponding to the charging state of the battery and to supply the total charging power amount with the charging power. The method according to claim 1,
Wherein the reservation information includes a vehicle usage time or a vehicle departure time set by a user, and a user preference based on billing information according to a time zone of the charging power that can be supplied from the charging device. 10. The method of claim 9,
Wherein the charging information varies depending on the type of the charging device and the time zone. 10. The method of claim 9,
The step of determining the charge start time
Determining a chargeable time zone based on the vehicle departure time and the user preference;
Determining whether the expected charging time is included in the chargeable time zone; And
Determining the time corresponding to the user preference as the charge start time if the estimated charge time is included in the chargeable time zone
And charging the vehicle. 12. The method of claim 11,
The step of determining the charge start time
Determining, as the charging start time, the time before the expected charging time from the vehicle departure time if the estimated charging time is not included in the chargeable time zone
Further comprising the steps of: A computer readable recording medium on which an application program is recorded, characterized by realizing the vehicle reservation charging method according to any one of claims 1 to 12 through execution by a processor. A storage unit for storing reservation information for charging;
A charging unit that confirms the type of the charging device connected to the vehicle and performs preliminary charging for a predetermined time using the charging device; And
And a control unit for checking a charging power supplied during the preliminary charging, determining a charging expected time corresponding to the charging power, and determining a charging start time corresponding to the charging estimated time and the reservation information,
Wherein the charging unit charges the battery mounted in the vehicle at the charging start time. 15. The method of claim 14,
The control unit includes an electronic control unit (ECU) for controlling the vehicle, a battery management system (BMS) for managing the battery, an on-board charger (OBC) for charging the battery, Wherein the at least one of the at least one of the at least one of the at least two of the at least one of the at least two of the at least one of the at least one battery. 15. The method of claim 14,
Wherein the control unit can request or approve a charge for use of the charging device. 15. The method of claim 14,
The charging unit
After receiving a control pilot (CP) signal from the charging device,
Checking the duty ratio or duty-cycle of the control pilot signal,
And determines the type of the charging device according to the application rate. 18. The method of claim 17,
Wherein the charging device is portable according to the application rate, the portable device including a stationary or an in-cable-control box (ICCB). 18. The method of claim 17,
(2) using a first level (Level 1) using an AC power plug of 120 V and a second level (Level 2) using an AC power plug of 240 V or 208 V according to the application ratio, The vehicle reservation charging device judges that the vehicle is supported. 15. The method of claim 14,
Wherein the preset time is one minute. 15. The method of claim 14,
Wherein the charging power is a sum of the amount of electric power delivered during the predetermined period of time. 22. The method of claim 21,
Wherein the estimated charging time is a time required to calculate a total charging power amount for buffering the battery corresponding to the charging state of the battery and to supply the total charging power amount with the charging power. 15. The method of claim 14,
Wherein the reservation information includes a vehicle usage time or a vehicle departure time set by a user, and a user preference based on billing information according to a time zone of the charging power that can be supplied from the charging device. 24. The method of claim 23,
Wherein the charging information varies depending on the type of the charging device and the time zone. 24. The method of claim 23,
The control unit
Determining a chargeable time zone based on the vehicle departure time and the user preference,
Determines whether the estimated charging time is included in the chargeable time zone,
And determines the time corresponding to the user preference as the charge start time when the charge estimate time is included in the chargeable time zone. 26. The method of claim 25,
The control unit
And determines the time that is before the estimated charging time from the vehicle departure time as the charging start time when the estimated charging time is not included in the chargeable time zone.

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