KR101535627B1 - Car battery monitoring system - Google Patents

Abstract

The battery capacity of the vehicle may be damaged if the charge state is below a certain level. Accordingly, it is necessary to continuously monitor the state of charge of the battery to maintain the state of charge at or above the charge level at which the damage occurs. Since the power of the battery is used to monitor the state of charge of the battery, frequent monitoring can rather promote the discharge of the battery. In the present invention, when the vehicle is parked for a long time, the wake-up period, which is a cycle for monitoring the state of the battery, is adjusted in accordance with the apparatus using the battery even in the long parking state, And a low power function capable of delaying the discharge of the battery.

Description

CAR BATTERY MONITORING SYSTEM [0001]

The present invention relates to a vehicle battery monitoring system. More particularly, the present invention relates to a vehicle battery monitoring system that reduces the power required for monitoring by adjusting the period of monitoring the vehicle battery in accordance with the configuration of the constant power assist device to be operated while the vehicle is parked for a long period of time.

High-capacity lithium-ion batteries are used in electric vehicles and hybrid vehicles to operate drive motors. High-capacity lithium-ion batteries, unlike general-purpose batteries for automobiles, may experience degradation in battery life and performance if the battery charge falls below a certain level.

In order to detect and prevent the battery performance and the life degradation problem in advance, the automobile system constantly monitors the lithium ion battery. However, the system of the automobile also uses the power of the battery to perform the monitoring.

In modern automobiles, many electronic devices are installed for the safety and convenience of the user, and some devices are always operating even when the ignition is off. In particular, when the electronic device uses the lithium ion battery when the vehicle is parked for a long period of time, a problem may occur that the battery discharges while the user of the vehicle can not recognize the state of the battery.

Therefore, it is required to provide a new type of vehicle system for delaying the discharge of the battery by reducing the power consumption during the long-term parking.

Korea Patent Publication No. 2010-0072461

SUMMARY OF THE INVENTION It is an object of the present invention to provide a device capable of changing the period of monitoring the state of the battery in order to delay battery discharge of the vehicle.

It is another object of the present invention to provide a method for changing a cycle of monitoring the state of the battery to delay a battery discharge of a vehicle.

It is another object of the present invention to provide a user interface capable of changing a cycle of monitoring the state of the battery to delay battery discharge of the vehicle.

The technical objects of the present invention are not limited to the above-mentioned technical problems, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a vehicle battery monitoring system including: a device selection unit for selecting an always-on power assist device to be operated in a state in which a vehicle is not started, A monitoring control device for adjusting a wake-up period in accordance with a selection result of the power assist device, and a sleep control device for sleeping according to a wake-up period adjusted by the monitoring control device. ) Mode to an active mode to monitor the battery.

According to one embodiment, the device selection input device includes a UI display unit for displaying a device selection UI (user interface), and a UI processing unit for providing a selection signal of the device selection UI to the monitoring control device .

According to one embodiment, the monitoring control device includes a wake-up period storage unit for storing a basic wake-up period which is a default value of the wake-up period and a wake-up period adjustment value of the constant power source assist device, A wake-up period determination unit for determining a new wake-up period based on the selected wake-up period and the wake-up period adjustment value; and a wake-up period for providing the new wake- And a period notification unit.

According to one embodiment, the wake-up period determining unit may collect the wake-up period adjustment value of the power assistant device included in the selection result of the power assistant device in the wake-up period storage unit, And a wake-up period determiner for calculating the wake-up period using the periodic adjustment value and the basic wake-up period to provide the calculated wake-up period to the wake-up period notification unit.

According to an embodiment, the period adjustment value is a positive value, and the wake-up period determiner may derive the new wake-up period by subtracting the period adjustment value in the basic wake-up period.

According to one embodiment, the battery monitoring apparatus is provided with the wakeup period from the monitoring control apparatus, switches to a sleep mode during the wakeup period, switches to an active mode when the wakeup period arrives, Can be monitored.

According to an embodiment, the battery monitoring apparatus may further include a battery warning unit for transmitting a warning message to a driver of the vehicle if the battery charging state is lower than a predetermined battery discharge danger lower limit value according to the monitoring result.

According to another aspect of the present invention, there is provided a method for monitoring a vehicle battery, the method comprising: monitoring a vehicle battery by using an auxiliary power supply auxiliary device to be operated in a state where the starting of the vehicle is off, Selecting a vehicle battery monitoring system to adjust a wake-up period according to a selection result of the power assistant device; and controlling a vehicle battery monitoring system to sleep according to the adjusted wakeup period, Mode to an active mode to monitor the battery condition.

According to one embodiment, the step of determining the wake-up period may comprise the step of determining that the vehicle battery monitoring system is configured to determine the wake-up period adjustment value of the power assistant device included in the selection result of the always- And calculating the period value to determine the wakeup period.

According to one embodiment, monitoring the battery condition may include transmitting a warning message to a driver of the vehicle if the vehicle battery monitoring system determines that the charge status of the battery is below a predetermined battery discharge hazard lower limit value .

According to the present invention as described above, it is possible to delay the discharge of the battery by adjusting the period of monitoring the battery according to devices that consume battery power while continuously operating when the automobile is parked for a long time.

1 is an overall configuration diagram of a vehicle battery monitoring system according to an embodiment of the present invention.
2 is a user interface in which a vehicle battery monitoring system receives a selection of a constant power supply auxiliary device to be operated in a state in which the vehicle is turned off, according to an embodiment of the present invention.
FIG. 3 illustrates a wake-up period on a time axis according to an always-on power assist device to be operated in a state in which the start-up of the vehicle is turned off, according to an embodiment of the present invention.
4 is a flowchart illustrating a vehicle battery monitoring method according to an embodiment of the present invention.
5 is a flowchart illustrating a method for determining a period for monitoring a battery, in accordance with an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

1, the configuration of the vehicle battery monitoring system 100 will be described.

A vehicle battery monitoring system 100 according to an embodiment of the present invention may include a device selection input device 110, a monitoring control device 120, a battery monitoring device 130, and a battery 140.

The device selection input device 110 provides a device selection UI (user interface user interface) for selecting an always-on power assist device to be operated in a state where the vehicle is not powered on, And provide the monitoring control device 120 with a list of selected regular power assistants.

The device selection input device 110 may include a UI display unit 112 and a UI processing unit 114. The UI display unit 112 may display a device selection UI that allows the user to select the normal power assist device. The UI display unit 112 may include an LCD display and an LED display for displaying the device selection UI. The UI processing unit 114 may control the device selection UI and provide a list of the selected power assist devices to the monitoring controller 120 by receiving the selection signal of the power assistant device from the device UI.

The operation of the device selection input device 110 will be described in detail in the description of FIG.

The monitoring control apparatus 120 may perform a function of adjusting a wake-up period, which is a period during which the battery monitoring apparatus 130 monitors the battery 140. [

The monitoring control device 120 may include a wake-up information storage unit 122, a wake-up period determination unit 124, and a wake-up period notification unit 126.

The wakeup information storage unit 122 may store a basic wakeup period, which is a wakeup period default value in a state in which the vehicle is turned off, and a wakeup period adjustment value of the constant power assist device. The wakeup information storage unit 122 may store information such as a cache, a read only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM) ) And a storage medium such as a hard disk drive and a volatile memory device such as a random access memory (RAM), a non-volatile memory device such as a flash memory, It does not.

The wake-up period determiner 124 may adjust the wake-up period by receiving a list of the regular power assist devices that always use power when the long-distance parking is performed from the device selection input device 110. [ The wake-up period determiner 124 may collect the wake-up period adjustment value and the basic wakeup period of each device included in the list of the power source auxiliary devices at the wake-up information storage unit 122. [ The wakeup period determiner 124 may determine a new wakeup period based on the basic wakeup period and the wakeup period adjustment value of each device.

For example, the wakeup information storage unit 122 stores a basic wakeup period of 7 days, a black box wakeup period adjustment value of 4 days, and a network device wakeup period adjustment value of 1 day, If the black box and the network device are included in the list of the power assist devices provided from the input device 110, the wakeup period determiner 124 subtracts the wakeup period adjustment value of each device in the basic wakeup period 2 days (7 days? 4 days? 1 day = 2 days) can be calculated by a new wakeup period. The reason why the wakeup period adjustment value is subtracted by the wakeup period adjustment value 124 is that the wakeup period adjustment value has a positive value and the battery consumption increases as more devices are used for long term parking, This is because it is necessary to further shorten the wakeup period, which is the monitoring period.

The wake-up period according to the constant power assist device will be described in detail with reference to FIG.

The wakeup period notification unit 126 may provide the new wakeup period to the battery monitoring device 130. [

The battery monitoring device 130 periodically monitors the state of the battery 140 and may transmit a warning message to the vehicle operator if the state of charge of the battery 140 is determined to be dangerous. To this end, the battery monitoring apparatus 130 may include a monitoring wakeup unit 132, a battery monitoring unit 134, and a battery warning unit 136.

The monitoring wakeup unit 132 may receive a wakeup period from the monitoring control apparatus 120 and use the wakeup period as a monitoring period. The monitoring wakeup unit 132 may switch the battery monitoring unit 134 to a sleep mode or an active mode in accordance with the wakeup period. The monitoring wakeup unit 132 may include a timer. The monitoring wakeup unit 132 may initialize the timer and switch the battery monitoring unit 134 to the sleep mode when the wakeup period is provided. When the timer reaches the wakeup period, the monitoring wakeup unit 132 may switch the battery monitoring unit 134 to the active mode. The battery monitoring unit 134 can monitor the charged state of the battery 140 when the battery monitoring unit 134 is in the active mode.

The battery monitoring unit 134 may measure at least one of temperature, voltage, and current of the battery 140 to determine the state of charge of the battery 140. [ The battery monitoring unit 134 monitors the battery charging rate of the battery 140 based on the tendency that the temperature increases as the charging state of the battery 140 changes from the cushioning state to the discharging state, Can be determined.

The battery warning unit 136 can warn the operator of the vehicle of the dangerous situation of the battery 140 by using the charging rate of the battery 140 determined by the battery monitoring unit 134. [ The battery warning unit 136 can warn the operator if the charging rate is below a predetermined battery discharge danger lower limit value. The alert may include sending a warning message. The warning message may include at least one of a Short Message Service (SMS) message, a Multimedia Message Service (MMS) message, and a Social Network Service (SNS) message. In order to transmit the warning message, the battery warning unit 136 uses at least one of communication means such as 3G, 4G, Long Term Evolution (LTE), Long Term Evolution-A (LTE-A) .

2, a description will be given of a device selection UI 200 for selecting an always-on power assist device to be operated in a state in which the vehicle is turned off, of auxiliary devices supplied with power from a battery of a vehicle according to an embodiment of the present invention do.

The device selection UI 200 may be displayed on the UI display unit 112. [ The device selection UI 200 may include device lists 210, 220 and 230, device selection check boxes 215, 225 and 235, an OK button 250 and a cancel button 260.

The device list 210, 220, 230 is a list of the power assist devices to be operated when the vehicle is turned off, of the assist devices supplied with power from the battery 140 of the vehicle. The device list 210, 220, 230 may include at least one of a black box, a network device, and a smart key recognition sensor, but is not limited thereto.

The device selection check boxes 215, 225, and 235 are user interfaces for receiving the selection of each device included in the device list 210, 220, and 230. The device selection check boxes 215 and 225 including check marks indicate that the device displayed on the right side of the device selection check boxes 215 and 225 is selected. The device selection check box 235 without a check mark indicates that the device displayed on the right side of the device selection check box 235 is not selected.

For example, the UI display unit 112 may have a screen touch function. When the selection check box 215 of the black box 210 is not selected and the selection check box 215 is touched, Lt; RTI ID = 0.0 > 215 < / RTI > When the selection check box 215 including the check mark is touched again, the selection check box 215 does not include a check mark.

The UI processing unit 114 provides the device list 210 and 220 corresponding to the device selection check boxes 215 and 225 including the check mark to the monitoring control device 120 when the confirmation button 250 receives the input signal can do.

The UI processing unit 114 can terminate the device selection UI 200 when the cancel button 260 receives the input signal. For example, the UI display unit 112 can remove the display of the device selection UI 200. [

Each of the components of FIGS. 1 to 2 may denote software or hardware such as a field-programmable gate array (FPGA) or an application-specific integrated circuit (ASIC). However, the components are not limited to software or hardware, and may be configured to be in an addressable storage medium and configured to execute one or more processors. The functions provided in the components may be implemented by a more detailed component or may be implemented by a single component that performs a specific function by combining a plurality of components.

Referring to FIG. 3, a wake-up period for monitoring the battery 140 will be described in accordance with an always-on power assist device to be operated in a state in which the start-up of the vehicle is turned off according to an embodiment of the present invention.

3 is a wake-up period comparison diagram 300 that compares wakeup periods in accordance with the selection of the power assist devices on one time base.

The function of monitoring the status of the battery is performed every wakeup cycle. The state where the vehicle is turned off for a long time is referred to as a long-term parking mode of the vehicle. In long-term parking mode, the greater the number of devices that use power, the shorter the wake-up period of long-term parking mode should be. The more devices that use the power, the faster the discharge of the battery is, the more often it is necessary to monitor the condition of the battery.

Referring to FIG. 3, the wakeup period 320 of the long-term parking mode using the black box device is relatively shorter than the basic wakeup period 330 of the long-term parking mode. The wake-up period 310 of the long-term parking mode using the black box and the network device is relatively shorter than the wake-up period 320 of the long-term parking mode using the black box device.

Referring to FIG. 4, the procedure of a vehicle battery monitoring method having a low power function will be described.

The vehicle battery monitoring system determines whether the vehicle is parked in the long-term parking mode (S110). In the long-term parking mode, the list of regular power assist devices is input (S120). In the long-term parking mode, the wake-up period is adjusted based on the list of the power assist devices (S130). In a case where the vehicle is not in the long-term parking mode, the wake-up period has a wake-up basic period value in a state other than long-term parking (S140).

The vehicle battery monitoring system checks whether a wakeup period has arrived (S150). The vehicle battery monitoring system monitors the battery condition when a wakeup period arrives (S160). The vehicle battery monitoring system determines whether the state of charge of the battery is less than a predetermined lower limit of battery discharge danger (S170). The vehicle battery monitoring system transmits a warning message to the driver if the charged state of the battery is below the battery discharge danger lower limit value (S180).

Referring to FIG. 5, a method for adjusting a wakeup period for vehicle battery monitoring with a low power function is described.

The wake-up period is set to the wake-up basic period value in the long-term parking mode (S210).

The vehicle battery monitoring system checks whether the black box is selected as the normal power assist device to be operated in the long-term parking mode (S220). When the black box is selected, the vehicle battery monitoring system updates the wake-up period to a value obtained by subtracting the wake-up period adjustment value of the black box from the wake-up period (S230).

The vehicle battery monitoring system determines whether the network device is selected as the normal power assist device to be operated in the long-term parking mode (S240). When the network device is selected, the vehicle battery monitoring system updates the wakeup period to a value obtained by subtracting the wakeup period adjustment value of the network device from the wakeup period (S230).

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

Vehicle Battery Monitoring System 100
The user interface 200 that receives the constant power assist device

Claims (10)

A device selection input device for providing a device selection UI (user interface) for selecting an always-on power assist device to be operated in a state in which the auxiliary device is powered from the battery of the vehicle and the vehicle is turned off;
A monitoring control device for adjusting a wake-up period in accordance with the selection result of the power assist device; And
And a battery monitoring device for monitoring a battery by switching from a sleep mode to an active mode according to a wakeup period adjusted by the monitoring control device,
The monitoring control device includes:
A wake-up period storage unit storing a basic wake-up period that is a default value of the wake-up period and a wake-up period adjustment value of the power assist unit;
A wake-up period determiner for determining a new wake-up period based on the selected device list provided from the device selection input device, the basic wake-up period and the wake-up period adjustment value; And
And a wake-up period notification unit for providing the new wake-up period to the battery monitoring apparatus.
Vehicle battery monitoring system. The method according to claim 1,
Wherein the device selection input device comprises:
A UI display unit displaying the device selection UI; And
And a UI processing unit for providing the selection control signal of the device selection UI input to the monitoring control apparatus.
Vehicle battery monitoring system. delete The method according to claim 1,
Wherein the wake-
Wherein the wakeup period adjustment value of the power assistant device included in the selection result of the power assistant device is collected in the wakeup period storage unit, And a wake-up period determiner for calculating the up period and providing the calculated wake-up period to the wake-up period notification unit.
Vehicle battery monitoring system. 5. The method of claim 4,
Wherein the period adjustment value is a positive value,
Wherein the wake-
Up period and deriving the new wake-up period by subtracting the periodic adjustment value from the basic wake-
Vehicle battery monitoring system. The method according to claim 1,
The battery monitoring apparatus includes:
Monitoring the battery by switching to the sleep mode during the wakeup period and switching to an active mode when the wakeup period arrives;
Vehicle battery monitoring system. The method according to claim 6,
The battery monitoring apparatus includes:
Further comprising a battery warning unit for transmitting a warning message to a driver of the vehicle if the battery charge state is lower than a predetermined battery discharge danger lower limit value in accordance with the monitoring result,
Vehicle battery monitoring system. Selecting an always-on power assist device to be operated in a state where the vehicle battery monitoring system is powered off from a battery of the vehicle and the assistant device is turned off;
The vehicle battery monitoring system adjusting a wake-up period in accordance with a selection result of the power assist device; And
Wherein the vehicle battery monitoring system is configured to transition from sleep mode to active mode according to the adjusted wakeup period to monitor battery condition,
Wherein the step of determining the wake-
Determining the wakeup period by computing a wake-up period adjustment value of the always-on power assist device included in the selection result of the constant power assist device to a predetermined basic wake-up period value, ,
Vehicle battery monitoring method. delete 9. The method of claim 8,
Wherein monitoring the battery condition comprises:
And if the vehicle battery monitoring system transmits a warning message to the driver of the vehicle if the state of charge of the battery is less than a predefined battery discharge hazard lower limit value,
Vehicle battery monitoring method.

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