KR102649165B1 - Car battery monitoring system - Google Patents

Abstract

The present invention relates to a vehicle battery in which the battery and power conversion device parts can be easily attached and detached and additional batteries can be connected, and in detail,
About a vehicle battery case that can be used in combination with a modular method in which multiple batteries can be connected in succession and the battery and power conversion device parts can be separated and combined with each other, and the battery part can be further expanded. will be.

Description

A vehicle battery that is easy to attach and detach from the battery and power converter and can be connected to additional batteries {CAR BATTERY MONITORING SYSTEM}

The present invention relates to a vehicle battery in which the battery and power conversion device parts can be easily attached and detached and additional batteries can be connected, and in detail,

About a vehicle battery case that can be used in combination with a modular method in which multiple batteries can be connected in succession and the battery and power conversion device parts can be separated and combined, and the battery part can be further expanded. will be.

Furthermore, it is about a system that manages batteries used in vehicles using a communication network.

Due to the vehicle's original smart functions and the additional installation of vehicle electronic devices (navigation, black box, etc.), the use of vehicle batteries is gradually increasing, and cases of vehicle batteries being discharged are frequent. The need for functions that allow users to accurately recognize and respond to battery conditions is increasing.

Due to the nature of batteries, if they are used for a long time, their performance deteriorates, the amount of charge decreases, and the risk of battery discharge accidents increases.

In addition, with the development of convenience functions in vehicles, battery usage is increasing according to the driver's driving behavior (including usage patterns of convenience devices and electronic devices) while driving, and excessive use of additional devices causes the vehicle battery to be depleted while driving. It becomes a factor that interferes with charging.

In the case of genuine cars, the power generation performance of the battery is designed by taking into account fuel efficiency, etc., so there is a deep correlation with the battery charge amount while driving.

Looking at the current consumption of representative automotive electronic devices, it is 60~250(A) for the starting device, 8~12(A) for the headlight, 6~12(A) for the cooling device, and 12~18(A) for the defogger. ), in the case of the seat heater, it can be seen that it is 15~30(A), etc.

Therefore, a battery management technology is needed that can comprehensively consider original devices that use vehicle batteries and various additional devices that users can install.

Even in parking situations, battery usage is increasing due to devices such as smart keys and black boxes.

The battery's charge can be inferred by monitoring the battery's voltage, and the correlation between the battery's charge capacity and voltage can be known.

Batteries have characteristics that change depending on temperature, and the battery charging function of the original car also applies charging characteristics differently depending on temperature, such as in winter and summer, and the correlation between battery temperature and charging can be seen.

The storage performance of a vehicle battery changes depending on the temperature, and you can learn about battery performance according to temperature. If the charging capacity is inferred only from the battery voltage, there is a limit to accuracy, and analysis combining temperature information is necessary.

{{{This type of battery does not have a configuration that can easily and firmly connect the plurality of batteries described in the present invention in succession, so in order to connect the plurality of batteries in succession, a connecting member connecting terminal to terminal is used, which is very difficult. It's cumbersome}}}

The present invention relates to a vehicle battery monitoring system, and more specifically, to a system for managing batteries used in vehicles using a communication network.

If the configuration is explained by the attached drawing,

a charge/discharge detection unit that determines whether the vehicle's battery is charging or discharging and stores information about the charge or discharge amount in a storage unit;

A temperature sensing unit that detects the temperature of the battery;

Remaining life cycle determination unit that calculates the remaining life cycle of the battery and stores it in the storage unit

A communication unit that performs wireless communication;

It transmits battery status information to a remotely installed battery management server 400 and includes a communication network (A300) in which at least one of wired or wireless communication means can be used.

In a battery equipped with (see Figure 4)

Next, referring to FIGS. 1, 2, and 3, the batteries are provided in plurality, and each of the plurality of battery cases 100 has a guide rail 101, a battery (corresponding to a battery accommodated in the battery case), and a power line on the outer side. A terminal (not shown) connected to (not shown) is formed to form a single battery case as needed.

Slide and move the guide rail of another battery case (100) on the side of (100) and insert them in close contact with each other, but ensure that the terminals are grounded to each other during the insertion process.

The rails 201 formed on the side of the outer wall of the power conversion device unit 200 are slid and moved to the guide rails 101 on the side of the plurality of battery cases 100 connected in succession, and are brought into close contact with each other. When inserted properly, the terminal formed on the battery case 100 and the terminal formed on the power conversion device (not shown) are grounded to each other so that the power of the battery is input to the power conversion device unit.

As described above, the present invention can be used in combination with a modular method in which a plurality of batteries can be connected in succession and the battery and power conversion device parts can be separated and combined with each other, and the battery part and power conversion device part can be separated and combined. By providing an expandable battery case for a vehicle, it is possible to have the battery section and the power conversion device section as one set.

The above effects are further revealed in specific details.

1 is a rear perspective view of a vehicle battery in which the battery and power conversion device portion of the present invention are easily removable and capable of additional battery connection, with the power conversion device portion connected to the battery case;
Figure 2 is a front perspective view of a vehicle battery in which the battery and power conversion device portion of the present invention are easily removable and capable of additional battery connection, with the power conversion device portion connected to the battery case;
Figure 3 is a reference diagram of a drawing with part of Figure 1 omitted;
Figure 4 is a flow chart of the vehicle battery monitoring system of the present invention.

The configuration will be explained with reference to the attached drawings, and embodiments thereof will be described.

The configuration will be explained with reference to the attached drawings with reference to FIG. 4 and embodiments thereof will be described.

a charge/discharge detection unit that determines whether the vehicle's battery is charging or discharging and stores information about the charge or discharge amount in a storage unit;

A temperature sensing unit that detects the temperature of the battery;

Remaining life cycle determination unit that calculates the remaining life cycle of the battery and stores it in the storage unit

A communication unit that performs wireless communication;

It transmits battery status information to a remotely installed battery management server 400 and includes a communication network (A300) in which at least one of wired or wireless communication means can be used.

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Referring to Figures 1, 2, and 3, the batteries are provided in plurality, and each of the plurality of battery cases 100 has a guide rail 101, a battery (corresponding to a battery accommodated in the battery case), and a power line (not shown) on the outer side of the plurality of battery cases 100. ) to form a terminal (not shown) connected to one battery case as needed.

Slide and move the guide rail of another battery case (100) on the side of (100) and insert them in close contact with each other, but ensure that the terminals are grounded to each other during the insertion process.

The rail 210 formed on the side of the outer wall of the power converter unit 200 is slid and moved to the guide rail 101 on the side of the plurality of battery cases 100 connected in succession, and is brought into close contact with each other. When inserted properly, the terminal formed on the battery case 100 and the terminal formed on the power conversion device (not shown) are grounded to each other so that the power of the battery is input to the power conversion device unit.

The power conversion device unit 200 is an inverter that converts DC power from the battery into AC power and outputs it to the load.

A guide rail 101 is formed on each side of the plurality of battery cases 100 and each battery is accommodated inside the plurality of battery cases 100.

± terminals are formed on the outside of the plurality of battery cases, and the terminals and the batteries are connected to each other with wire cables (not shown).

By configuring in this way, a plurality of battery cases 100 can be selectively connected and used in succession.

Then, a rail 201 and a ± terminal are formed on the side of the outer wall of the power converter unit 200, and the guide rail 101 of the battery case 100 and the rail are slid and brought into close contact with each other, so that each terminal is grounded. .

When grounded in this way, the battery's power is input to the power conversion device. Then, the power output from the load of the power conversion device unit 200 is AC power, so users who enjoy camping can use AC power.

A fixing part (a) is formed at the rear (100a) of the battery case (100) and the rear (200a) of the power conversion device unit (200) to attach the connecting member (300) to the rear (200a) of the battery case (100), and then use the bolt (301) to After penetrating the connecting member 300, the bolt 301 is fixed to the fixing part (a).

The rear 100a of the battery case 100 and the rear 200a of the power conversion device 200 are fixed and connected to each other by a guide rail 101 and a rail 201. It is firmly fixed to the battery case 100.

Next, referring to FIG. 4, in the embodiment of the present invention, DC 5V operating power is generated using the power supplied from the battery 10 and supplied to each component constituting the battery monitoring device (A100). When the battery 10 is connected to the charger 20, power from the charger 20 is supplied to the power supply through a power line.

The display unit 140 serves to visually display the state of the battery so that the user can easily recognize it. For example, it may be a plurality of LED lamps or a flat display device such as an LCD. The display unit 140 may display, for example, “charging”,

Various status information such as “Communicating”, “Inspection required”, “Electrolyte replenishment required”, etc. can be displayed.

The storage unit 150 stores a program for the monitoring operation of the control unit 110, basic battery information necessary for managing the battery 10, and various battery status information acquired through monitoring by the battery monitoring device A100.

Basic battery information may include unique identification information of the battery 10, use life cycle, reference values and allowable ranges of voltage/current/temperature/liquid level, etc., and shunt resistance value of the current detection unit.

Battery status information includes various detection values obtained through monitoring by the control unit 110, the number of charge and discharge cycles, voltage, current, temperature and liquid level at the beginning and end of the charge and discharge cycle, current amount (discharge amount) per cycle (Ah), It may include information such as remaining life cycle.

Below, the configuration and function of the control unit 110 will be described in more detail (see Figure 4).

The charge/discharge detection unit 111 is used to obtain voltage information of the battery. It detects the voltage between the (+) and (-) output terminals of the battery 20 through a battery voltage detection circuit to determine whether the battery is being charged or not. You can check whether or not it is discharging.

Additionally, the charge/discharge detection unit 111 may use the direction of the current detected by the current determination unit 113 to check whether the device is in a charged state or a discharged state.

In addition, the charge/discharge detection unit 111 detects and confirms various voltage information such as voltage in the open state, voltage during charging, and voltage during discharging, and uses the detected voltage information to detect whether the battery 10 is overcharged or undercharged. Alternatively, it is possible to determine whether an over-discharge state exists, and if it is outside the allowable range, the display unit 140 can be controlled to display a predetermined warning.

In addition, the charge/discharge detection unit 111 detects and confirms various voltage information such as voltage in the open state, voltage during charging, and voltage during discharging, and uses the detected voltage information to detect whether the battery 10 is overcharged or undercharged. Alternatively, it is possible to determine whether an over-discharge state exists, and if it is outside the allowable range, the display unit 140 can be controlled to display a predetermined warning.

The remaining life cycle determination unit 116 calculates the remaining life cycle of the battery and stores it in the storage unit 150. For example, if the service life cycle is stored in the storage unit 150, the remaining life cycle can be calculated by subtracting the actual charge and discharge cycle from the service life cycle.

At this time, a more accurate remaining life cycle can be calculated by considering information about the charge amount and/or discharge amount in the actual charge/discharge cycle.

The charge/discharge detection unit 111 may use the direction of the current sensed by the current determination unit 113 to check whether the device is in a charging state or a discharging state.

The temperature detection unit 114 receives the detection value of the temperature sensor mounted on the battery 10 through the temperature detection terminal to obtain temperature information of the battery 10, and displays the display unit 140 when the temperature is outside the allowable value. You can control it to display a certain warning.

The communication unit 200 is preferably a short-range wireless communication module such as Bluetooth or ZigBee. However, it is more convenient to use a short-range wireless communication module to automatically receive battery status information from the battery monitoring device 100 during charging. Of course.

Additionally, the communication unit 200 transmits battery status information to the remotely installed battery management server 400 via the communication network A300, and at least one of wired or wireless communication means may be used.

The type of communication network (A300) is not particularly limited and can be configured by selecting and/or combining wired and wireless Internet networks, mobile communication networks, public telephone networks, and private networks.

In the battery management server 400, various status information of the battery transmitted from the charger 20 is stored in connection with the battery's unique identification information, and when battery abnormalities such as overcharging, undercharging, overdischarging, overheating, and electrolyte shortage are detected, This can be transmitted to the manager terminal 500 so that necessary actions can be taken. Additionally, in addition to the manager terminal 500, the information may be transmitted to the terminal of the dealership that supplied the battery 10 so that necessary actions can be taken.

In this way, by comprehensively managing the status information of each battery in the battery management server 400, the history of a specific battery can be tracked and managed and maintenance can be performed on each battery at an appropriate time, thereby enabling efficient use of the battery. It has the advantage of maximizing its useful life.

It is a communication means that transmits alarm messages and data about the battery status and temperature status from the control unit 20 to a remote location through a wireless communication module.

The current determination unit 113 measures the voltage from a plurality of input units and circuits connected in series to obtain a predetermined voltage, the circuit (a circuit in which the current is charged or discharged), and measures the voltage from one of the circuits to measure the current. It may be provided with a standard resistance (not shown) connected to the line and a voltage measurement line proportional to the current from the standard resistance.

The communication unit includes a wireless module that transmits the result to the manager or user's mobile communication terminal using WAP if the operation processing result of the control unit 20 is determined to be abnormal, and a remote manager through the wireless module and the existing mobile communication network. B. By transmitting the unique number of the battery (10), an alarm text set in response to an abnormal state, and measurement data stored in the memory device to the user's mobile communication terminal to a remote manager or user, it is possible to remotely determine which battery is in an abnormal state. It allows you to

To briefly explain the active operation of this remote monitoring system, remote monitoring is

When the desired administrator or user runs an application installed on the mobile communication terminal, connects to the control unit 20, and transmits a status check request to the control unit 20, the control unit 20 receives the status check request from the administrator or user. The current or past results extracted by are transmitted to the administrator or user's mobile communication terminal.

In this embodiment, remote monitoring is performed without separate equipment by using WAP (Wireless Application Protocol), which is installed on the control unit 20 and the mobile communication terminal of the manager or user and enables wireless data communication between the two devices. can do.

WAP acts as a communication emulator. It converts signals received and demodulated from the other party into meaningful information according to a predetermined protocol, and monitors the abnormal state of a small group of power transmitters located remotely using a mobile communication terminal. It allows monitoring.

100. Battery case 101. Guide rail
150. Storage unit 200. Power conversion device unit
201. Rail 300. A communication network
400. Management server

Claims (1)

When the rail 210 formed on the side of the outer wall of the power conversion device 200 is slidably moved to the guide rail 101 formed on the side of the battery case 100 and fitted in close contact with each other, the battery The terminal formed on the case 100 and the terminal formed on the power conversion device are grounded to each other so that the power of the battery is input to the power conversion device unit 200.
A fixing part (a) is formed at the rear (100a) of the battery case (100) and the rear (200a) of the power conversion device unit (200) to attach the connecting member (300) to the rear (200a), and then use the bolt (301) Penetrating the connecting member 300 and then fixing the bolt 301 to the fixing part (a).
A vehicle battery that is characterized in that it further includes a battery and a power conversion unit that are easy to attach and detach and can be connected to additional batteries.