TWI838889B - Battery water ingress warning method and system - Google Patents
Battery water ingress warning method and system Download PDFInfo
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- TWI838889B TWI838889B TW111136833A TW111136833A TWI838889B TW I838889 B TWI838889 B TW I838889B TW 111136833 A TW111136833 A TW 111136833A TW 111136833 A TW111136833 A TW 111136833A TW I838889 B TWI838889 B TW I838889B
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- water ingress
- voltage value
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 57
- 238000007599 discharging Methods 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 description 28
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 22
- 229910052744 lithium Inorganic materials 0.000 description 22
- 238000010586 diagram Methods 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 2
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/24—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
- G01F23/241—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid for discrete levels
- G01F23/243—Schematic arrangements of probes combined with measuring circuits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/12—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2250/00—Driver interactions
- B60L2250/10—Driver interactions by alarm
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Emergency Alarm Devices (AREA)
- Alarm Systems (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Protection Of Static Devices (AREA)
Abstract
本發明為一種電池進水警示方法及系統，該電池進水警示系統設置在 一電動載具上，包含有一電池、一整車控制器及一警示部件；該電池中的一電池管理系統可辨別是否有液體滲入至該電池內部，若是，該電池管理系統輸出一警示指令至該整車控制器或該警示部件。該整車控制器根據該警示指令控制該電動載具執行一警示行動，該警示行動可為禁止該電動載具充電、限制最高騎乘速度等；或該警示部件根據該警示信號執行該警示行動，例如該警示部件為該電動載具的一儀表，該警示行動為令該儀表的一故障燈亮起，以提示使用者該電池可能進水。 The present invention is a battery water ingress warning method and system. The battery water ingress warning system is arranged on an electric vehicle, and includes a battery, a vehicle controller, and a warning component. A battery management system in the battery can identify whether liquid has infiltrated into the battery. If so, the battery management system outputs a warning instruction to the vehicle controller or the warning component. The vehicle controller controls the electric vehicle to perform a warning action according to the warning instruction. The warning action may be to prohibit the electric vehicle from charging, limit the maximum riding speed, etc.; or the warning component performs the warning action according to the warning signal. For example, the warning component is an instrument of the electric vehicle, and the warning action is to light up a fault light of the instrument to remind the user that the battery may be flooded.
Description
本發明關於電動車的電池，特別是關於電池進水的警示方法及系統。 The present invention relates to electric vehicle batteries, and in particular to a method and system for warning batteries of water ingress.
隨著科技的發展，可多次重複充放電的鋰電池被廣泛應用於各種生活及工業領域中，例如：電動載具、手機等，該鋰電池通常包含防水結構，預防該鋰電池因為進水而故障。然而，在長時間使用該鋰電池後，該防水結構可能因碰撞、溫度、濕度等因素而受損，使該鋰電池的防水性降低，此時，再對該鋰電池進行充電或放電，產生的熱量將使其內部的溫度提高，而與其外部產生一溫度差，該溫度差容易導致該鋰電池內部產生水氣，或當鋰電池放置於潮濕的環境中，將容易使液體進入該鋰電池內部。 With the development of technology, lithium batteries that can be charged and discharged repeatedly are widely used in various life and industrial fields, such as electric vehicles, mobile phones, etc. The lithium battery usually includes a waterproof structure to prevent the lithium battery from malfunctioning due to water ingress. However, after using the lithium battery for a long time, the waterproof structure may be damaged due to collision, temperature, humidity and other factors, which reduces the waterproofness of the lithium battery. At this time, the heat generated by charging or discharging the lithium battery will increase the temperature inside it, and a temperature difference will be generated with the outside. The temperature difference can easily cause moisture to be generated inside the lithium battery, or when the lithium battery is placed in a humid environment, it will easily allow liquid to enter the lithium battery.
為了判斷該鋰電池是否進水，現有的作法在各該鋰電池中設置有一感應貼紙，而各該鋰電池外部有一透明觀察孔，使用者可從該透明觀察孔觀察該感應貼紙，當該鋰電池進水或內部有水氣時，該感應貼紙將變色，以此警示使用者該鋰電池曾經進水。然而，例如當該鋰電池設置在電動機車時，如騎乘過程中該鋰電池發生進水，該感應貼紙無法發出立即性的警示，使該鋰電池可能在進水情況下持續使用，導致該鋰電池發生故障，甚至燒毀。 In order to determine whether the lithium battery has been flooded, the existing method is to install a sensor sticker in each lithium battery, and each lithium battery has a transparent observation hole outside, and the user can observe the sensor sticker through the transparent observation hole. When the lithium battery has been flooded or there is moisture inside, the sensor sticker will change color to warn the user that the lithium battery has been flooded. However, for example, when the lithium battery is installed in an electric motorcycle, if the lithium battery is flooded during riding, the sensor sticker cannot issue an immediate warning, so that the lithium battery may continue to be used in the case of flooding, causing the lithium battery to malfunction or even burn out.
當現有的鋰電池進水時，缺乏立即性的警示，使該鋰電池可能在進水情況下持續使用，而水為一導電體，可能導致該鋰電池內部發生短路情況而故障，甚至燒毀，讓該鋰電池在使用安全上存有疑慮。 When existing lithium batteries are flooded, there is no immediate warning, so the lithium battery may continue to be used despite being flooded. Water is a conductor, which may cause a short circuit inside the lithium battery, causing failure or even burning, raising concerns about the safety of the lithium battery.
依據本發明一實施例，該電池進水警示方法供應用於一電動的具的一電池，該電池包含一電池管理統及複數個電池單元，該方法由各該電池管理系統執行，包含以下步驟：該電池管理系統的一控制器接收一偵測電壓值及一參考電壓值；計算該偵測電壓值與該參考電壓值的一比較電壓值；判斷該比較電壓值是否大於一門檻電壓值，若是，判定該電池進水；當判定為該電池進水，該電池管理系統輸出一警示信號。 According to an embodiment of the present invention, the battery water ingress warning method is applied to a battery of an electric tool, the battery includes a battery management system and a plurality of battery cells, and the method is executed by each of the battery management systems, and includes the following steps: a controller of the battery management system receives a detection voltage value and a reference voltage value; calculates a comparison voltage value of the detection voltage value and the reference voltage value; determines whether the comparison voltage value is greater than a threshold voltage value, and if so, determines that the battery has water ingress; when it is determined that the battery has water ingress, the battery management system outputs a warning signal.
依據本發明另一實施例，該電池進水警示方法供應用於一電動載具的一電池，該電池包含一電池管理系統、複數個電池單元以及一進水偵測板，該電池管理系統連接該進水偵測板的兩端，該方法由各該電池管理系統執行，包含以下步驟：該電池管理系統的一控制器接收該進水偵測板兩端的一分壓值；判斷該分壓值是否小於一分壓參考值，若是，判定該電池進水；當該電池進水，該電池管理系統發出一警示信號。 According to another embodiment of the present invention, the battery water ingress warning method is applied to a battery of an electric vehicle, the battery comprising a battery management system, a plurality of battery cells and a water ingress detection board, the battery management system is connected to the two ends of the water ingress detection board, the method is executed by each of the battery management systems, and comprises the following steps: a controller of the battery management system receives a voltage division value at the two ends of the water ingress detection board; determines whether the voltage division value is less than a voltage division reference value, and if so, determines that the battery has water ingress; when the battery has water ingress, the battery management system sends a warning signal.
本發明電池進水警示方法及系統，該電池進水警示系統包含有一電池、一整車控制器及一警示部件，該電池中的一電池管理系統可以辨別是否有液體存在該電池內部，若是，該電池管理系統透過一通訊模組輸出一警示指令，而該電動載具的一整車控制器或一警示部件透過一通訊模組接收該警示指令。當該整車控制器接收該警示指令，該整車控制器根據該警示指令控制該電動載具執行一警示行動，該警示行動可為禁止該電動載具進行充電、限制該電動載具的最高騎乘速度等；當該警示部件接收該警示指令，該警示部件根據 該警示指令執行該警示行動，例如該警示部件為該電動載具的一儀表，該警示行動為令該儀表的一故障燈亮起，以提示使用者該電池可能進水。 The present invention discloses a battery water ingress warning method and system. The battery water ingress warning system includes a battery, a vehicle controller and a warning component. A battery management system in the battery can identify whether there is liquid inside the battery. If so, the battery management system outputs a warning command through a communication module, and a vehicle controller or a warning component of the electric vehicle receives the warning command through a communication module. When the vehicle controller receives the warning command, the vehicle controller controls the electric vehicle to perform a warning action according to the warning command. The warning action may be to prohibit the electric vehicle from charging, limit the maximum riding speed of the electric vehicle, etc.; when the warning component receives the warning command, the warning component performs the warning action according to the warning command. For example, the warning component is an instrument of the electric vehicle, and the warning action is to light up a fault light of the instrument to remind the user that the battery may be flooded.
1:電池 1:Battery
2:整車控制器 2: Vehicle controller
3:警示部件 3: Warning components
10:電池單元 10:Battery unit
11:電池組 11:Battery pack
11a:電池正極端 11a: Positive terminal of battery
11b:電池負極端 11b: Negative battery terminal
20:電池管理系統 20:Battery management system
20a:正極充放端 20a: Positive charging and discharging terminal
20b:負極充放端 20b: Negative charging and discharging terminal
21:電壓偵測模組 21: Voltage detection module
22a:第一轉換電路 22a: First conversion circuit
22b:第二轉換電路 22b: Second conversion circuit
23:控制器 23: Controller
24:分壓電路 24: Voltage divider circuit
30:進水偵測板 30: Water ingress detection panel
31,32:導電線路 31,32: Conductive lines
R1:電阻器 R1: Resistor
SW1:充電開關 SW1: Charging switch
SW2:放電開關 SW2: discharge switch
V1~Vn:電壓值 V1~Vn: voltage value
圖1：本發明電池進水警示系統的一第一實施例之電路方塊圖。 Figure 1: A circuit block diagram of a first embodiment of the battery water intrusion warning system of the present invention.
圖2：本發明電池進水警示系統的一第一實施例中的電池之電路示意圖。 Figure 2: A schematic diagram of the battery circuit in a first embodiment of the battery water intrusion warning system of the present invention.
圖3：本發明電池進水警示方法的一第一實施例之流程圖。 Figure 3: Flowchart of a first embodiment of the battery water intrusion warning method of the present invention.
圖4：本發明電池進水警示系統的一第二實施例中的電池之立體透視示意圖。 Figure 4: A three-dimensional perspective diagram of a battery in a second embodiment of the battery water intrusion warning system of the present invention.
圖5：本發明電池進水警示系統的一第二實施例中的電池之電路示意圖。 Figure 5: A schematic diagram of the battery circuit in a second embodiment of the battery water intrusion warning system of the present invention.
圖6：本發明電池進水警示方法的一第二實施例之流程圖。 Figure 6: Flowchart of a second embodiment of the battery water intrusion warning method of the present invention.
本發明是一種電池進水警示方法及系統，供應用於一電動載具，請參閱圖1，該電池進水警示系統設置在該電動載具上，包含有至少一電池1、一整車控制器2及一警示部件3，請參閱圖2，在該系統的一實施例中，該電池1包含複數個電池單元10及一電池管理系統20，該電池單元10可為單一個電池芯或是由多個電池芯構成，該電池單元10連接以形成一電池組11，例如該電池單元10以串聯的方式連接形成該電池組11，且各該電池單元10的電壓值分別以V1、V2...Vn表示，其中，該電池組11具有n個該電池單元10；該電池管理系統20可實施在一電路板上，作為該電池1的一資訊管理核心，用來對該些電池單元10進行充放電的運作管理，並監控該些電池單元10的放電電量資訊、充電電量資訊、溫度資訊等。 The present invention is a battery water ingress warning method and system, which is applied to an electric vehicle. Please refer to FIG1. The battery water ingress warning system is arranged on the electric vehicle, and includes at least one battery 1, a vehicle controller 2 and a warning component 3. Please refer to FIG2. In an embodiment of the system, the battery 1 includes a plurality of battery cells 10 and a battery management system 20. The battery cell 10 can be a single battery core or composed of a plurality of battery cores. The battery cells 10 are connected to form a battery pack 11. For example, the battery cells 10 are connected in series to form the battery pack 11, and the voltage values of the battery cells 10 are represented by V1, V2...Vn, respectively, wherein the battery pack 11 has n battery cells 10; the battery management system 20 can be implemented on a circuit board as an information management core of the battery 1, and is used to manage the charging and discharging operations of the battery cells 10, and monitor the discharge capacity information, charging capacity information, temperature information, etc. of the battery cells 10.
該電池組11具有二個連接端點，該二連接端點可作為該電池組11的總電壓輸出端，該二連接端點分別為一電池正極端11a及一電池負極端 11b。該電池管理系統20連接該電池組11的該電池正極端11a及該電池負極端11b，以監控該電池組11的運作，且該電池管理系統20具有一正極充放端20a及一負極充放端20b，該電池正極端11a與該正極充放端20a之間串接有一充電開關SW1及一放電開關SW2，當該充電開關SW1及該放電開關SW2皆導通時，該電池管理系統20可令該電池組11進行充電或放電。當該正極充放端20a及該負極充放端20b連接一外部充電源時，該外部充電源透過該電池管理系統20對該電池組11進行充電；當該正極充放端20a及該負極充放端20b連接至一負載，該電池組11透過該電池管理系統20進行放電以供電給該負載，以下說明以各該電池組11進行放電為例。 The battery pack 11 has two connection terminals, which can be used as the total voltage output terminals of the battery pack 11. The two connection terminals are a battery positive terminal 11a and a battery negative terminal 11b. The battery management system 20 is connected to the battery positive terminal 11a and the battery negative terminal 11b of the battery pack 11 to monitor the operation of the battery pack 11, and the battery management system 20 has a positive charge and discharge terminal 20a and a negative charge and discharge terminal 20b. A charge switch SW1 and a discharge switch SW2 are connected in series between the battery positive terminal 11a and the positive charge and discharge terminal 20a. When the charge switch SW1 and the discharge switch SW2 are both turned on, the battery management system 20 can charge or discharge the battery pack 11. When the positive charging and discharging terminal 20a and the negative charging and discharging terminal 20b are connected to an external charging source, the external charging source charges the battery pack 11 through the battery management system 20; when the positive charging and discharging terminal 20a and the negative charging and discharging terminal 20b are connected to a load, the battery pack 11 is discharged through the battery management system 20 to supply power to the load. The following description takes the discharge of each battery pack 11 as an example.
該電池管理系統20包含有一電壓偵測模組21、一第一轉換電路22a、一第二轉換電路22b以及一控制器23，該電壓偵測模組21連接每個電池單元10的正極與負極，用來偵測每個電池單元10兩端的電壓值V1、V2...Vn，並將該些電壓值V1、V2...Vn加總後得到一加總電壓值Vsum，該電壓偵測模組21輸出一加總轉換電壓值Vt0以表示該加總電壓值Vsum，其中，該電壓偵測模組21可為一類比前端偵測模組(AFE)，但不以此為限。 The battery management system 20 includes a voltage detection module 21, a first conversion circuit 22a, a second conversion circuit 22b and a controller 23. The voltage detection module 21 is connected to the positive and negative electrodes of each battery cell 10 to detect the voltage values V1, V2...Vn at both ends of each battery cell 10, and to sum up the voltage values V1, V2...Vn to obtain a summed voltage value Vsum. The voltage detection module 21 outputs a summed conversion voltage value Vt0 to represent the summed voltage value Vsum. The voltage detection module 21 can be an analog front-end detection module (AFE), but is not limited thereto.
該第一轉換電路22a連接該電池正極端11a，該電池正極端11a的電壓Va經過該第一轉換電路22a後輸出一第一轉換電壓Vt1，其中，該第一轉換電壓Vt1小於該電池正極端11a的電壓Va，在本實施例中，該第一轉換電路22a為一分壓電路，將電池正極端20a的電壓Va進行分壓後而得到該第一轉換電壓Vt1。 The first conversion circuit 22a is connected to the positive terminal 11a of the battery. The voltage Va of the positive terminal 11a of the battery outputs a first conversion voltage Vt1 after passing through the first conversion circuit 22a. The first conversion voltage Vt1 is less than the voltage Va of the positive terminal 11a of the battery. In this embodiment, the first conversion circuit 22a is a voltage divider circuit, which divides the voltage Va of the positive terminal 20a of the battery to obtain the first conversion voltage Vt1.
該第二轉換電路22b連接該正極充放端20a，該正極充放端20a的電壓Vb經過該第二轉換電路22b後輸出一第二轉換電壓Vt2，其中，該第二轉換電壓Vt2小於該正極充放端20a的電壓Vb。 The second conversion circuit 22b is connected to the positive charge and discharge terminal 20a. The voltage Vb of the positive charge and discharge terminal 20a outputs a second conversion voltage Vt2 after passing through the second conversion circuit 22b, wherein the second conversion voltage Vt2 is less than the voltage Vb of the positive charge and discharge terminal 20a.
該控制器23分別電連接該電壓偵測模組21、該第一轉換電路22a以及該第二轉換電路22b，以分別接收該加總轉換電壓值Vt0、該第一轉換電壓Vt1以及該第二轉換電壓Vt2。其中，因為該控制器23容許的一工作電壓範圍較小(例如不超過5V)，因此需透過該電壓偵測模組21、該第一轉換電路22a及該第二轉換電路22b將相對較大電壓值的該加總電壓值Vsum、該電池正極端11a的電壓Va及該正極充放端20a的電壓Vb，轉換為具有相對較小電壓值的該加總轉換電壓值Vt0、該第一轉換電壓Vt1及該第二轉換電壓Vt2。 The controller 23 is electrically connected to the voltage detection module 21, the first conversion circuit 22a, and the second conversion circuit 22b, respectively, to receive the summed conversion voltage value Vt0, the first conversion voltage Vt1, and the second conversion voltage Vt2, respectively. Among them, because the operating voltage range allowed by the controller 23 is relatively small (for example, not exceeding 5V), the voltage detection module 21, the first conversion circuit 22a and the second conversion circuit 22b need to convert the relatively large voltage value of the summed voltage value Vsum, the voltage Va of the battery positive terminal 11a and the voltage Vb of the positive charge and discharge terminal 20a into the summed conversion voltage value Vt0, the first conversion voltage Vt1 and the second conversion voltage Vt2 with relatively small voltage values.
該整車控制器2為該電動載具的一監控核心，該整車控制器2透過一通訊模組與該電池管理系統20進行通訊，並可根據該控制器23傳送的訊號執行對應的行動。該警示部件3透過該通訊模組與該電池管理系統20進行通訊，並可根據該控制器23傳送的訊號執行對應的行動。較佳的，該通訊模組為一控制器區域網路通訊模組(CAN bus)。 The vehicle controller 2 is a monitoring core of the electric vehicle. The vehicle controller 2 communicates with the battery management system 20 through a communication module and can perform corresponding actions according to the signal sent by the controller 23. The warning component 3 communicates with the battery management system 20 through the communication module and can perform corresponding actions according to the signal sent by the controller 23. Preferably, the communication module is a controller area network communication module (CAN bus).
請參閱圖3，本發明方法的第一實施例可根據如圖1及圖2所示的該電池進水警示系統執行，其中，圖中所示步驟S10~S70不必然限制該方法執行的順序，該方法的各步驟詳細說明如下。 Please refer to Figure 3. The first embodiment of the method of the present invention can be executed according to the battery water ingress warning system shown in Figures 1 and 2. Steps S10 to S70 shown in the figure do not necessarily limit the order of execution of the method. The steps of the method are described in detail as follows.
S10：該控制器23量測該電池1的一偵測電壓值及一參考電壓值。在本發明的一實施例中，該控制器23根據該第一轉換電壓Vt1計算出該電池正極端11a的電壓Va，該電池正極端11a的電壓Va作為該偵測電壓值；該控制器23根據該加總轉換電壓值Vt0計算出該加總電壓值Vsum，該加總電壓值Vsum作為該參考電壓值。 S10: The controller 23 measures a detection voltage value and a reference voltage value of the battery 1. In one embodiment of the present invention, the controller 23 calculates the voltage Va of the positive terminal 11a of the battery according to the first conversion voltage Vt1, and the voltage Va of the positive terminal 11a of the battery is used as the detection voltage value; the controller 23 calculates the summed voltage value Vsum according to the summed conversion voltage value Vt0, and the summed voltage value Vsum is used as the reference voltage value.
在本發明的另一實施例中，當該充電開關SW1及該放電開關SW2導通時，該控制器23根據該第二轉換電壓Vt2計算出該正極充放端20a的電壓Vb，以該正極充放端20a的電壓Vb作為偵測電壓值。 In another embodiment of the present invention, when the charging switch SW1 and the discharging switch SW2 are turned on, the controller 23 calculates the voltage Vb of the positive charging and discharging terminal 20a according to the second conversion voltage Vt2, and uses the voltage Vb of the positive charging and discharging terminal 20a as the detection voltage value.
S20：該控制器23根據該偵測電壓值與該參考電壓值計算一電壓差值△V，舉例而言，該電池組11具有14個該電池單元10，各該電池單元10的電壓值為3.3(伏特)，則該參考電壓值為3.3*14=46.2(伏特)，若在該電池正極端11a測得的電壓Va(45伏特)作為偵測電壓值，則該電壓差值△V即為46.2-45=1.2(伏特)。 S20: The controller 23 calculates a voltage difference △V according to the detection voltage value and the reference voltage value. For example, the battery pack 11 has 14 battery cells 10, and the voltage value of each battery cell 10 is 3.3 (volts). Then the reference voltage value is 3.3*14=46.2 (volts). If the voltage Va (45 volts) measured at the positive terminal 11a of the battery is used as the detection voltage value, then the voltage difference △V is 46.2-45=1.2 (volts).
S30：該控制器23判斷該電壓差值△V是否大於預設的一門檻電壓值，若該電壓差值△V大於該門檻電壓值，判定該電池1進水；若否，回歸至步驟S10。當該些電池單元10發生進水情形時，該電池單元10的電壓值V1、V2...Vn有可能會上升，或是該電池正極端11a的電壓Va、該正極充放端20a的電壓Vb因該電池1進水而上升，使該電壓差值△V變大而超出該門檻電壓值。 S30: The controller 23 determines whether the voltage difference △V is greater than a preset threshold voltage value. If the voltage difference △V is greater than the threshold voltage value, it is determined that the battery 1 has water ingress; if not, it returns to step S10. When the battery cells 10 are flooded, the voltage values V1, V2...Vn of the battery cells 10 may rise, or the voltage Va of the positive terminal 11a of the battery and the voltage Vb of the positive charging and discharging terminal 20a may rise due to water ingress of the battery 1, causing the voltage difference △V to increase and exceed the threshold voltage value.
S40：該控制器23判斷該偵測電壓值是否大於一標準電壓值，若是，判定該電池進水；若否，回歸至步驟10。在本發明的一實施例中，該標準電壓值為該電池1預設的一最大工作電壓值，該最大工作電壓值可根據不同的電動車車型進行設定，以配合不同的電動車車型所需的動力需求。舉例而言，該最大工作電壓值為48(伏特)，當該電池1發生進水情形時，該電池正極端11a的電壓Va、該正極充放端20a的電壓Vb有可能會上升，而超過該標準電壓值。在本發明的另一實施例中，該標準電壓值為該電池1生產製造時的一額定電壓值。 S40: The controller 23 determines whether the detected voltage value is greater than a standard voltage value. If so, it is determined that the battery has water in it; if not, it returns to step 10. In one embodiment of the present invention, the standard voltage value is a preset maximum working voltage value of the battery 1, and the maximum working voltage value can be set according to different electric vehicle models to meet the power requirements of different electric vehicle models. For example, the maximum working voltage value is 48 (volts). When the battery 1 is flooded, the voltage Va of the positive terminal 11a of the battery and the voltage Vb of the positive charge and discharge terminal 20a may rise and exceed the standard voltage value. In another embodiment of the present invention, the standard voltage value is a rated voltage value of the battery 1 during production.
S50：當判定該電池1進水，該電池管理系統20輸出一警示指令。 S50: When it is determined that the battery 1 has water in it, the battery management system 20 outputs a warning command.
S60：當該電動載具的該整車控制器2透過該通訊模組接收該警示指令，該整車控制器2可根據該警示指令控制該電動載具執行一警示行動，舉例而言，該警示行動可以是該整車控制器2禁止該電動載具充電、限制該電動載具的最高騎乘速度等。 S60: When the vehicle controller 2 of the electric vehicle receives the warning instruction through the communication module, the vehicle controller 2 can control the electric vehicle to perform a warning action according to the warning instruction. For example, the warning action can be that the vehicle controller 2 prohibits the electric vehicle from charging, limits the maximum riding speed of the electric vehicle, etc.
S70：當該電動載具的該警示部件3透過該通訊模組接收該警示指令，該警示部件3可根據該警示指令執行該警示行動。例如該警示部件3為該電動載具的一儀表，當儀表收到該警示指令時，該儀表的一故障燈會亮起以作為警示行動。 S70: When the warning component 3 of the electric vehicle receives the warning instruction through the communication module, the warning component 3 can execute the warning action according to the warning instruction. For example, the warning component 3 is an instrument of the electric vehicle. When the instrument receives the warning instruction, a fault light of the instrument will light up as a warning action.
本發明方法除了可配合上述描述之系統的第一實施例而達成，該方法具有一第二實施例可配合該系統的一第二實施例執行，詳細說明如下：請參閱圖4及圖5，該系統的第二實施例與該第一實施例的差別在於，在該電池警示系統的第二實施例中，該電池管理系統20進一步連接一進水偵測板30，該進水偵測板30相對設置在該電池1的一電池外殼的一內部下方位置，因此當該電池1有進水時，該進水偵測板30會被液體部分淹沒。該進水偵測板30上設置有二導電線路31、32，該二導電線路31、32交錯形成一導電區，當有液體存在於該導電區時，改變該二導電線路31、32之間的一阻值Rx，且該阻值Rx的變化會根據液體的量而變化，使該進水偵測板30具有類似一可調電阻的功能。 In addition to being implemented in conjunction with the first embodiment of the system described above, the method of the present invention has a second embodiment that can be implemented in conjunction with a second embodiment of the system, as described in detail as follows: Please refer to Figures 4 and 5. The difference between the second embodiment of the system and the first embodiment is that in the second embodiment of the battery warning system, the battery management system 20 is further connected to a water ingress detection plate 30, and the water ingress detection plate 30 is relatively arranged at an inner lower position of a battery casing of the battery 1. Therefore, when water enters the battery 1, the water ingress detection plate 30 will be partially submerged by the liquid. The water inlet detection plate 30 is provided with two conductive lines 31 and 32, which are interlaced to form a conductive area. When liquid exists in the conductive area, a resistance Rx between the two conductive lines 31 and 32 is changed, and the change of the resistance Rx will change according to the amount of liquid, so that the water inlet detection plate 30 has a function similar to an adjustable resistor.
此外，該電池管理系統20上有一分壓電路24，該分壓電路24連接該電池組11，且由多個電阻器串聯形成；該進水偵測板30的該二導電線路31、32分別並聯連接該分壓電路24中的一電阻器R1的兩端；該電池管理系統20的該控制器23連接該電阻器R1的兩端，用來偵測該電阻器R1兩端的分壓。特別注意的是，當該電池1進水時，液體可立即改變該進水偵測板30的該阻值Rx，且因為該進水偵測板30與該電阻器R1並聯，令該控制器23偵測到的分壓可立即產生變化。 In addition, the battery management system 20 has a voltage divider circuit 24, which is connected to the battery pack 11 and is formed by a plurality of resistors connected in series; the two conductive lines 31 and 32 of the water inlet detection board 30 are respectively connected in parallel to the two ends of a resistor R1 in the voltage divider circuit 24; the controller 23 of the battery management system 20 is connected to the two ends of the resistor R1 to detect the voltage divider at the two ends of the resistor R1. It is particularly noted that when water enters the battery 1, the liquid can immediately change the resistance Rx of the water inlet detection board 30, and because the water inlet detection board 30 is connected in parallel with the resistor R1, the voltage divider detected by the controller 23 can change immediately.
請參閱圖6，在本發明方法的第二實施例中，該電池進水警示方法主要包含有步驟P10~P50，圖中所示步驟P10~P50不必然限制該方法執行的順序，該方法的各步驟詳細說明如下。 Please refer to Figure 6. In the second embodiment of the method of the present invention, the battery water ingress warning method mainly includes steps P10 to P50. Steps P10 to P50 shown in the figure do not necessarily limit the order of execution of the method. The steps of the method are described in detail as follows.
P10：該控制器23接收該進水偵測板30兩端的一分壓值。該分壓值亦為該電池組11於該電阻器R1上的分壓。 P10: The controller 23 receives a voltage division value at both ends of the water inlet detection plate 30. The voltage division value is also the voltage division value of the battery pack 11 on the resistor R1.
P20：該控制器23判斷該分壓值是否小於一分壓參考值，若是，判定該電池1進水；若否，回歸至步驟P10。具體而言，該控制器23預設有該分壓參考值，該分壓參考值可為該進水偵測板30表面乾燥時，該控制器23量測該進水偵測板30兩端所測得的分壓；當該進水偵測板30的表面存在液體，將使該進水偵測板30的阻值變小，在電流不變的狀況下，則該進水偵測板30兩端的該分壓值將因此下降。 P20: The controller 23 determines whether the voltage division value is less than a voltage division reference value. If so, it is determined that the battery 1 has water in it; if not, it returns to step P10. Specifically, the controller 23 is preset with the voltage division reference value. The voltage division reference value can be the voltage division measured by the controller 23 at both ends of the water inlet detection plate 30 when the surface of the water inlet detection plate 30 is dry; when there is liquid on the surface of the water inlet detection plate 30, the resistance of the water inlet detection plate 30 will decrease. Under the condition that the current remains unchanged, the voltage division value at both ends of the water inlet detection plate 30 will decrease accordingly.
P30：當判定該電池1進水，該電池管理系統20輸出該警示指令。 P30: When it is determined that the battery 1 has water in it, the battery management system 20 outputs the warning command.
P40：該電動載具的該整車控制器2透過該通訊模組接收該警示指令，詳細說明如本發明方法的第一實施例中的步驟S60，故不進行贅述。 P40: The vehicle controller 2 of the electric vehicle receives the warning command through the communication module. The details are as in step S60 in the first embodiment of the method of the present invention, so it will not be elaborated here.
P50：該電動載具的該警示部件3透過該通訊模組接收該警示指令，詳細說明如本發明方法的第一實施例中的步驟S70，故不進行贅述。 P50: The warning component 3 of the electric vehicle receives the warning command through the communication module. The detailed description is the same as step S70 in the first embodiment of the method of the present invention, so it will not be repeated here.
本發明電池進水警示方法及系統，該電池進水警示系統設置在一電動載具上，包含有一電池、一整車控制器及一警示部件，該電池中的一電池管理系統可以辨別是否有液體滲入至該電池內部，若是，該電池管理系統透過一通訊模組輸出一警示指令至該整車控制器或該警示部件，當該整車控制器接收該警示指令，該整車控制器根據該警示指令控制該電動載具執行一警示行動，該警示行動可為禁止該電動載具進行充電、限制該電動載具的最高騎乘速度等；或當該警示部件接收該警示指令，該警示部件根據該警示指令執行該警示行動，例如該警示部件為該電動載具的一儀表，該警示行動為令該儀表的一故障燈亮起，以提示使用者該電池可能進水。 The present invention discloses a battery water ingress warning method and system. The battery water ingress warning system is arranged on an electric vehicle, and includes a battery, a vehicle controller, and a warning component. A battery management system in the battery can identify whether liquid has infiltrated into the battery. If so, the battery management system outputs a warning instruction to the vehicle controller or the warning component through a communication module. When the vehicle controller receives the warning instruction, the vehicle controller controls the electric vehicle to perform a warning action according to the warning instruction. The warning action may be to prohibit the electric vehicle from charging, limit the maximum riding speed of the electric vehicle, etc.; or when the warning component receives the warning instruction, the warning component performs the warning action according to the warning instruction. For example, the warning component is an instrument of the electric vehicle, and the warning action is to light up a fault light of the instrument to remind the user that the battery may be flooded.
綜上所述，乃僅記載本發明為呈現解決問題所採用的技術手段之實施方式或實施例而已，並非用來限定本發明專利實施之範圍。即凡與本發明專利申請範圍文義相符，或依本發明專利範圍所做的均等變化與修飾，皆為本發明專利範圍所涵蓋。 In summary, the above only records the implementation methods or examples of the technical means adopted by the present invention to solve the problem, and is not used to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications that are consistent with the scope of the patent application of the present invention or made according to the scope of the patent of the present invention are covered by the scope of the patent of the present invention.
Claims (14)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW111136833A TWI838889B (en) | 2022-09-28 | 2022-09-28 | Battery water ingress warning method and system |
| FR2309470A FR3140211A1 (en) | 2022-09-28 | 2023-09-08 | METHOD AND SYSTEM FOR INDICATING WATER INFILTRATION FOR A BATTERY |
| JP2023147029A JP2024049347A (en) | 2022-09-28 | 2023-09-11 | Battery water immersion display method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW111136833A TWI838889B (en) | 2022-09-28 | 2022-09-28 | Battery water ingress warning method and system |
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| TW202414358A TW202414358A (en) | 2024-04-01 |
| TWI838889B true TWI838889B (en) | 2024-04-11 |
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| TW111136833A TWI838889B (en) | 2022-09-28 | 2022-09-28 | Battery water ingress warning method and system |
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| JP (1) | JP2024049347A (en) |
| FR (1) | FR3140211A1 (en) |
| TW (1) | TWI838889B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201291774Y (en) * | 2008-08-28 | 2009-08-19 | 比亚迪股份有限公司 | Electrokinetic cell package flooding detecting device |
| CN108810269A (en) * | 2018-06-04 | 2018-11-13 | 努比亚技术有限公司 | Alarm method, mobile terminal and the computer readable storage medium of battery immersion |
| CN109916474A (en) * | 2017-12-13 | 2019-06-21 | 现代自动车株式会社 | The device and method and Vehicular system of battery system are flowed into for detecting water |
| CN114577420A (en) * | 2020-11-30 | 2022-06-03 | 福建耀荣能源科技有限公司 | Water inlet detection method for outdoor lithium battery pack |
-
2022
- 2022-09-28 TW TW111136833A patent/TWI838889B/en active
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2023
- 2023-09-08 FR FR2309470A patent/FR3140211A1/en active Pending
- 2023-09-11 JP JP2023147029A patent/JP2024049347A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201291774Y (en) * | 2008-08-28 | 2009-08-19 | 比亚迪股份有限公司 | Electrokinetic cell package flooding detecting device |
| CN109916474A (en) * | 2017-12-13 | 2019-06-21 | 现代自动车株式会社 | The device and method and Vehicular system of battery system are flowed into for detecting water |
| CN108810269A (en) * | 2018-06-04 | 2018-11-13 | 努比亚技术有限公司 | Alarm method, mobile terminal and the computer readable storage medium of battery immersion |
| CN114577420A (en) * | 2020-11-30 | 2022-06-03 | 福建耀荣能源科技有限公司 | Water inlet detection method for outdoor lithium battery pack |
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| FR3140211A1 (en) | 2024-03-29 |
| TW202414358A (en) | 2024-04-01 |
| JP2024049347A (en) | 2024-04-09 |
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