CN214874330U - Control system for preventing electric vehicle lead-acid storage battery from being lack of power - Google Patents
Control system for preventing electric vehicle lead-acid storage battery from being lack of power Download PDFInfo
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- CN214874330U CN214874330U CN202120311000.9U CN202120311000U CN214874330U CN 214874330 U CN214874330 U CN 214874330U CN 202120311000 U CN202120311000 U CN 202120311000U CN 214874330 U CN214874330 U CN 214874330U
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- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims abstract description 12
- 238000013480 data collection Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 102100037070 Doublecortin domain-containing protein 2 Human genes 0.000 description 7
- 101000954709 Homo sapiens Doublecortin domain-containing protein 2 Proteins 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000005059 dormancy Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000007958 sleep Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model discloses a prevent electric automobile lead acid battery insufficient voltage's control system, including the battery package, battery package output and DCDC electric connection, DCDC output and battery electric connection, DCDC input and VCU control module electric connection, VCU control module and BMS management module electric connection, BMS management module and battery package electric connection. This control system who prevents electric automobile lead acid battery insufficient voltage can the accurate battery service conditions of measurationing, and the protection battery is unlikely to excessive charge-discharge, and this system prevents that the vehicle from placing for a long time, parks the power consumptive lead acid battery insufficient voltage and unable reuse of electronic components because of lead acid battery self-discharge, prolongs lead acid battery's life, reduces electric automobile's maintenance cost.
Description
Technical Field
The utility model relates to an electric automobile low pressure power supply system technical field specifically is a control system who prevents electric automobile lead-acid storage battery insufficient voltage.
Background
At present, electronic components, lighting equipment and other equipment of an automobile are powered by a lead-acid storage battery, even if the electric automobile still keeps the lead-acid storage battery as a power supply of low-voltage electronic equipment, part of the electronic components of the electric automobile also work at low power consumption when the automobile stops, and the lead-acid storage battery is easy to self-discharge, so that the electric automobile can be placed for more than several months or half a year and cannot be restarted, and the situation that the electric quantity of the lead-acid storage battery is forgotten to be turned off after the automobile stops or vehicle-mounted equipment consumes the electric quantity of the lead-acid storage battery can also occur. In view of these defects, it is necessary to design a control system for preventing the electric vehicle lead-acid storage battery from short-circuiting.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prevent control system of electric automobile lead acid battery insufficient voltage, this system prevents that the vehicle from placing for a long time, because of lead acid battery self-discharge and the power consumptive lead acid battery insufficient voltage of vehicle parking electronic components and can't reuse, prolongs lead acid battery's life, reduces electric automobile's maintenance cost, avoids influencing the engine and starts next time, promotes vehicle operational reliability, can solve the problem among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a prevent electric automobile lead acid battery insufficient voltage's control system, includes the battery package, battery package output and DCDC electric connection, DCDC output and battery electric connection, DCDC input and VCU control module electric connection, VCU control module and BMS management module electric connection, BMS management module and battery package electric connection.
Preferably, the BMS management module is internally provided with a voltage acquisition module, a current sensing module, a data processing module, a balance control module and an RTC timing awakening module respectively.
Preferably, a data collection module, a data judgment module, a storage module and a control module are respectively arranged in the VCU control module.
Preferably, the voltage acquisition module, the current sensing module, the data processing module, the balance control module and the RTC timing wake-up module are electrically connected with each other respectively.
Preferably, the data collection module, the data judgment module, the storage module and the control module are respectively and electrically connected with each other.
Preferably, a high-voltage relay is arranged in the battery pack and electrically connected with the BMS management module through a lead. Preferably, the battery cell module and the temperature sensor pass through a wire and a BMS management module.
Preferably, the RTC timing wake-up module is set as a real-time clock.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the control system for preventing the power shortage of the lead-acid storage battery of the electric automobile has the advantages that the VCU control module makes fault judgment and information storage on the storage battery, the safety of the use of the storage battery is improved, the use condition of the lead-acid storage battery can be accurately measured, the storage battery is protected from being charged excessively, the RTC timing wake-up module system provides a precise time reference, the storage battery adopts a 12V system, the voltage range is 8V-14V, the voltage of the storage battery is lower than 8V to start charging, the voltage is charged to 14V to stop charging, the RTC timing wake-up module wakes up the BMS management module once in 8 hours, the system prevents the automobile from being placed for a long time, the lead-acid storage battery cannot be used again due to the power shortage of the lead-acid storage battery caused by self-discharge of the lead-acid storage battery and the power consumption of electronic components for parking the automobile, the service life of the lead-acid storage battery is prolonged, the maintenance cost of the electric automobile is reduced, and the influence on the next start of an engine is avoided, and the running reliability of the vehicle is improved.
Drawings
Fig. 1 is a schematic diagram of a battery power-supplying module according to the present invention;
fig. 2 is an internal block diagram of the VCU control module and the BMS management module according to the present invention;
FIG. 3 is a schematic diagram of the current compensation process of the storage battery of the present invention;
fig. 4 is the utility model discloses a battery benefit operation principle sketch map.
In the figure: 1. a battery pack; 2. DCDC; 3. a storage battery; 4. a VCU control module; 41. a data collection module; 42. a data judgment module; 43. a storage module; 44. an instruction control module; 5. a BMS management module; 51. a voltage acquisition module; 52. a current sensing module; 53. a data processing module; 54. a balance control module; 55. and an RTC timing wake-up module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a control system for preventing power loss of a lead-acid storage battery of an electric vehicle includes a battery pack 1, an output end of the battery pack 1 is electrically connected to DCDC2, an output end of the DCDC2 is electrically connected to the storage battery 3, the storage battery 3 adopts a 12V system, a voltage range is 8V-14V, the voltage of the storage battery 3 is lower than 8V, charging is stopped when the voltage is 14V, an input end of the DCDC2 is electrically connected to a VCU control module 4, the VCU control module 4 is internally provided with a data collection module 41, a data judgment module 42, a storage module 43 and an instruction control module 44, the data collection module 41 and the storage module 43 collect and store data of the storage battery 3, the data judgment module 42 judges the collected data, the instruction control module 44 sends out a control instruction according to the judged data, the data collection module 41, the data judgment module 42, and the data judgment module 42, The storage module 43 and the command control module 44 are electrically connected to each other respectively to perform fault determination and information storage on the storage battery 3, so as to improve the safety of the use of the storage battery 3, the VCU control module 4 is electrically connected to the BMS management module 5, the BMS management module 5 is internally provided with a voltage acquisition module 51, a current sensing module 52, a data processing module 53, an equalization control module 54 and an RTC timing wake-up module 55 respectively, the voltage acquisition module 51, the current sensing module 52, the data processing module 53, the equalization control module 54 and the RTC timing wake-up module 55 are electrically connected to each other respectively, the RTC timing wake-up module 55 wakes up the BMS management module 5 once in 8 hours, the BMS management module 5 recognizes that the battery is awakened by the RTC timing wake-up module 55, the BMS management module 5 determines whether the voltage of the storage battery 3 needs to be charged, and prepares to perform power compensation if the voltage of the storage battery 3 is lower than a set value, the usage condition of the lead-acid battery can be accurately measured, the storage battery 3 is protected from over charging and discharging, after the BMS management module 5 is dormant, the RTC timing awakening module 55 continues to work and starts to record the dormant time, the RTC timing awakening module 55 is set as a real-time clock, a real-time clock chip adopts a crystal oscillator with higher precision as a clock source to provide an accurate time reference for the system, the RTC timing awakening module 55 continuously judges whether the dormant time reaches a set awakening time, if the set timed awakening time is reached, the RTC timing awakening module 55 starts to awaken the BMS management module 5, the BMS management module 5 is electrically connected with the battery pack 1, a high-voltage relay is arranged in the battery pack 1 and is electrically connected with the BMS management module 5 through a lead, the BMS management module 5 controls the high-voltage relay to be closed to establish a high-voltage loop, and the BMS management module 5 activates the VCU control module 4 to send a control command, requesting DCDC2 to work, controlling DCDC2 to work by VCU control module 4, reducing the voltage of battery pack 1, charging battery 3, when battery 3 is charging, BMS management module 5 judging whether the voltage of battery 3 meets the condition of stopping charging, if not, continuing charging, if so, sending command to stop DCDC2, BMS management module 5 cutting off high voltage relay inside battery pack 1, after the power supply of battery 3 is finished, BMS management module 5 judging that the dormancy condition is met, automatically entering dormancy, other parts of the system entering dormancy in sequence, RTC timing awakening module 55 continuing to start dormancy timing, preventing the vehicle from being placed for a long time, prolonging the service life of lead-acid battery, reducing the maintenance cost of electric vehicle, avoiding influencing the next start of engine, and the running reliability of the vehicle is improved.
The working principle is as follows: after the electric automobile is stopped, the BMS management module 5 enters a dormant state, the RTC timing awakening module 55 starts to calculate the dormant time, and simultaneously judges whether the dormant time reaches 8 hours, if the dormant time does not reach the continuous calculation, if the dormant time reaches 8 hours, the BMS management module 5 is activated, after the BMS management module 5 is activated, the RTC timing awakening module 55 is identified to be activated, then judges whether the storage battery 3 needs to be charged, if the voltage of the storage battery 3 is not less than 8V, the BMS management module 5 directly enters the dormant state, if the voltage of the storage battery 3 is less than 8V, the BMS management module 5 prepares to close a high-voltage relay inside the battery pack 1, informs the VCU control module 4 to control the DCDC2 to work to charge the storage battery 3, the BMS management module 5 judges whether the voltage of the storage battery 3 meets the charging stop condition, the storage battery 3 continues to be charged before the voltage of the storage battery 3 reaches 14V, and stops charging when the voltage of the storage battery 3 reaches 14V, the BMS management module 5 transmits a stop charging instruction, and the BMS management module 5 enters a sleep state.
In summary, in the control system for preventing the power shortage of the lead-acid storage battery of the electric vehicle, the VCU control module 4 makes fault judgment and information storage for the storage battery 3, so as to improve the safety of the use of the storage battery 3, the equalizing control module 54 equalizes the charging of the single batteries, so that each battery in the battery pack reaches an equalized state, the use condition of the battery pack can be accurately measured, the storage battery 3 is protected from overcharging, the RTC timing wake-up module 55 provides an accurate time reference, the storage battery 3 adopts a 12V system, the voltage range is 8V-14V, the voltage of the storage battery 3 is lower than 8V, the charging is stopped when the voltage is charged, the RTC timing wake-up module 55 wakes up the BMS management module 5 to wake up once in 8 hours, the system prevents the vehicle from being placed for a long time, the lead-acid storage battery cannot be used again due to the power shortage of the lead-acid storage battery and the power consumption of electronic components when the vehicle is parked, the service life of the lead-acid storage battery is prolonged, the maintenance cost of the electric automobile is reduced, the influence on the next starting of the engine is avoided, and the running reliability of the automobile is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a prevent electric automobile lead acid battery insufficient voltage's control system, includes battery package (1), its characterized in that: the battery pack is characterized in that the output end of the battery pack (1) is electrically connected with the DCDC (2), the output end of the DCDC (2) is electrically connected with the storage battery (3), the input end of the DCDC (2) is electrically connected with the VCU control module (4), the VCU control module (4) is electrically connected with the BMS management module (5), and the BMS management module (5) is electrically connected with the battery pack (1).
2. The control system for preventing the electric vehicle lead-acid storage battery from short-circuiting according to claim 1, wherein: the BMS management module (5) is internally provided with a voltage acquisition module (51), a current sensing module (52), a data processing module (53), a balance control module (54) and an RTC timing awakening module (55).
3. The control system for preventing the electric vehicle lead-acid storage battery from short-circuiting according to claim 1, wherein: the VCU control module (4) is internally provided with a data collection module (41), a data judgment module (42), a storage module (43) and an instruction control module (44) respectively.
4. The control system for preventing the electric vehicle lead-acid storage battery from short-circuiting according to claim 2, is characterized in that: the voltage acquisition module (51), the current sensing module (52), the data processing module (53), the balance control module (54) and the RTC timing wake-up module (55) are respectively and electrically connected with each other.
5. The control system for preventing the electric vehicle lead-acid storage battery from short-circuiting according to claim 3, wherein: the data collection module (41), the data judgment module (42), the storage module (43) and the instruction control module (44) are respectively and electrically connected with each other.
6. The control system for preventing the electric vehicle lead-acid storage battery from short-circuiting according to claim 1, wherein: and a high-voltage relay is arranged in the battery pack (1) and is electrically connected with the BMS management module (5) through a lead.
7. The control system for preventing the electric vehicle lead-acid storage battery from short-circuiting according to claim 1, wherein: be provided with electric core module and temperature sensor in battery package (1), electric core module and temperature sensor pass through wire and BMS management module (5) electric connection.
8. The control system for preventing the electric vehicle lead-acid storage battery from short-circuiting according to claim 4, wherein: the RTC timing wake-up module (55) is set as a real-time clock.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120311000.9U CN214874330U (en) | 2021-02-03 | 2021-02-03 | Control system for preventing electric vehicle lead-acid storage battery from being lack of power |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120311000.9U CN214874330U (en) | 2021-02-03 | 2021-02-03 | Control system for preventing electric vehicle lead-acid storage battery from being lack of power |
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| CN214874330U true CN214874330U (en) | 2021-11-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041003A1 (en) * | 2022-08-22 | 2024-02-29 | 中国第一汽车股份有限公司 | Electric vehicle parking anomaly identification method and apparatus |
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2021
- 2021-02-03 CN CN202120311000.9U patent/CN214874330U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041003A1 (en) * | 2022-08-22 | 2024-02-29 | 中国第一汽车股份有限公司 | Electric vehicle parking anomaly identification method and apparatus |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231105 Address after: Floor 3, Building C, Si'an West Lake Science and Technology Innovation Park, Si'an Town, Changxing County, Huzhou City, Zhejiang Province, 313000 Patentee after: Dongguan Huajin Technology Co.,Ltd. Patentee after: Zhejiang Chuneng New Energy Co.,Ltd. Address before: 523808 room 1102, building 1, No.16, Keji 4th Road, Songshanhu Park, Dongguan City, Guangdong Province Patentee before: Dongguan Huajin Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |