CN110308400A - Under a kind of vehicle after electricity accumulator status monitoring method - Google Patents
Under a kind of vehicle after electricity accumulator status monitoring method Download PDFInfo
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- CN110308400A CN110308400A CN201910670206.8A CN201910670206A CN110308400A CN 110308400 A CN110308400 A CN 110308400A CN 201910670206 A CN201910670206 A CN 201910670206A CN 110308400 A CN110308400 A CN 110308400A
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- storage battery
- battery sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
The invention discloses the monitoring methods of accumulator status after electricity under a kind of vehicle, including the monitoring of battery quiescent current and battery SOC monitoring；The step of battery quiescent current monitors includes: storage battery sensor self-test, LIN bus dormancy time judges, whether current static electric current is greater than predetermined current threshold judgement, and it wakes up the transmission times of host node request signal, wake up the judgement of success or not, if meeting corresponding condition, then storage battery sensor sends status information I to host node, memory is written in status information I by host node, then storage battery sensor removes wake-up signal and status information I, and suspend mode and the second preset time threshold of waiting continue to be monitored after reaching.Accumulator status after OFF grades can be in vehicle power supply using the present invention carries out accurate monitoring record, and engineer is facilitated to check discharged or defective battery problem.
Description
Technical field
The invention belongs to vehicle power supply control technology fields, and in particular under a kind of vehicle after electricity accumulator status monitoring
Method.
Background technique
Power-supply system is the premise of all functions of automobile, and the starting of engine, the use of entertainment systems, burglary-resisting system are recognized
Card etc. all be unable to do without the power supply of battery.The electricity supply for guaranteeing battery becomes times that Automobile Design must be realized
Business.
In engine behavior, generator is working asynchronously.The electric power source of vehicle electrical appliance is from power generation at this time
Machine, and when the electricity of battery is lower than setting value, electricity a part that generator generates acts on battery, charges for it.
And when the engine is not in operation, all electrical appliances of automobile just lean on battery to provide electric energy.It is such therefore, it is necessary to try every possible means to control
In the case of electrical appliance power consumption, just can guarantee that battery has enough electricity to successfully start up engine for next time.
Currently, it is to ensure power supply that control vehicle power supply, which is in the quiescent current after " OFF " shelves (i.e. under vehicle after electricity),
Important means.In Automobile Design development process, using longest storage period and maximum static current value as accumulator capacity
One of key factor for type selecting.But in some special cases, due to user install additional electrical appliance, as automobile data recorder,
Entertainment systems, 360 panorama systems etc. may result in vehicle quiescent current more than designed size；On the other hand, former vehicular electrical appliance
Control logic may be designed and not perfect, may result under certain complex environments under OFF grades controller not suspend mode or
It is to be waken up extremely in dormant state, continues battery consumption electricity, cause power shortage.This kind of electric deficiency phenomenons have contingency,
Continuous simulation is needed to be tested when investigation problem using scene, the investigation time is long, and difficulty is big, low efficiency.
Summary of the invention
The object of the present invention is to provide the monitoring methods of accumulator status after electricity under a kind of vehicle, to be in vehicle power supply
Accumulator status after " OFF " shelves carries out accurate monitoring record, and engineer is facilitated to check discharged or defective battery problem.
Under vehicle of the present invention after electricity accumulator status monitoring method, including battery quiescent current monitoring and store
Battery SOC monitoring.Wherein, the battery quiescent current monitor the step of include:
S1, in the case where vehicle power supply is in " OFF " shelves, storage battery sensor self-test judges the detection of quiescent current signal
Whether precision meets the requirements, and if it is (indicating that self-test passes through), then storage battery sensor enters quiescent current monitoring standby mode,
Then S2 is executed, is otherwise terminated.
S2, storage battery sensor judge whether LIN bus dormancy time is greater than the first preset time threshold, if it is,
Storage battery sensor enters quiescent current monitor state, then executes S3, otherwise continues to execute S2.
S3, storage battery sensor judge whether current static electric current is greater than predetermined current threshold, if it is, S4 is executed,
Otherwise S3 is continued to execute.
S4, storage battery sensor, which are sent, wakes up host node request signal and status information I, then executes S5.
S5, storage battery sensor judge whether the transmission times for waking up host node request signal is less than preset times threshold value,
If it is, executing S7, S6 is otherwise executed.
S6, storage battery sensor, which are removed, wakes up host node request signal and status information I, and suspend mode, then terminates.
S7, storage battery sensor judge whether host node is waken up success, if it is, executing S8, otherwise return and execute
S4。
S8, host node by status information I be written memory after, storage battery sensor remove wake up host node request signal
With status information I, and suspend mode (corresponding LIN bus also suspend mode) then executes S9.
S9, storage battery sensor judge that dormancy time (dormancy time is the dormancy time of storage battery sensor itself) is
It is no to be greater than the second preset time threshold, S1 is executed if it is, returning, otherwise continues to execute S9.
Since initial stage electric current electric under vehicle is bigger and fluctuation is obvious, so regulation self-test passes through and after LIN bus suspend mode
In first preset time threshold, storage battery sensor is constantly in quiescent current monitoring standby mode, and standby period battery passes
The quiescent current that sensor detects is not compared with predetermined current threshold, after the first preset time threshold of LIN bus suspend mode
Just start to judge the size of itself and corresponding predetermined current threshold.Under abnormal conditions, it is possible to host node (such as Body Control
Device) receive wake up host node request signal after do not waken up successfully, to prevent storage battery sensor from sending wake-up without end
Host node request signal and status information I set a control strategy, the i.e. transmission times of judgement wake-up host node request signal
Whether preset times threshold value is less than, if it is not, then storage battery sensor, which is removed, wakes up host node request signal and status information
I, and suspend mode, then terminate.After host node is waken up successfully, host node can read status information I and status information I be written
Memory facilitates accident analysis.After memory is written in status information I by host node, storage battery sensor can remove wake-up master
Node request signal and status information I, and suspend mode continue above-mentioned monitored after waiting the second preset time threshold to reach
Journey.
Preferably, the status information I includes current time, current static electric current and current SOC value.
The battery SOC monitor the step of include:
P1, in the case where vehicle power supply is in " OFF " shelves, storage battery sensor self-test judges that the detection accuracy of SOC signal is
No to meet the requirements, if it is (indicating that self-test passes through), then storage battery sensor enters SOC monitoring standby mode, then executes P2,
Otherwise terminate.
P2, storage battery sensor judge whether LIN bus dormancy time is greater than the first preset time threshold, if it is,
Storage battery sensor enters SOC monitor state, then executes P3, otherwise continues to execute P2.
P3, storage battery sensor judge whether current SOC value is less than default power threshold, if it is, executing P4, otherwise
Continue to execute P3.
P4, storage battery sensor, which are sent, wakes up host node request signal and status information II, then executes P5.
P5, storage battery sensor judge whether the transmission times for waking up host node request signal is less than preset times threshold value,
If it is, executing P7, P6 is otherwise executed.
P6, storage battery sensor, which are removed, wakes up host node request signal and status information II, and suspend mode, then terminates.
P7, storage battery sensor judge whether host node is waken up success, if it is, executing P8, otherwise return and execute
P4。
P8, host node by status information II be written memory after, storage battery sensor remove wake up host node request letter
Number and status information II, and suspend mode (corresponding LIN bus also suspend mode), then execute P9.
P9, storage battery sensor judge that dormancy time (dormancy time is the dormancy time of storage battery sensor itself) is
It is no to be greater than the second preset time threshold, P1 is executed if it is, returning, otherwise continues to execute P9.
Since initial stage electric current electric under vehicle is bigger and fluctuation is obvious, so regulation self-test passes through after the suspend mode of LIN bus the
In one preset time threshold, storage battery sensor is constantly in SOC monitoring standby mode, standby period storage battery sensor detection
To SOC value do not compared with default power threshold, just start to judge it after LIN bus the first preset time threshold of suspend mode
With the size of corresponding default power threshold.Under abnormal conditions, it is possible to which host node (such as car body controller) receives wake-up master
It is not waken up successfully after node request signal, wakes up host node request signal to prevent storage battery sensor from sending without end
With status information II, a control strategy is set, that is, it is default to judge whether the transmission times for waking up host node request signal is less than
Frequency threshold value, if it is not, then storage battery sensor, which is removed, wakes up host node request signal and status information II, and suspend mode, so
After terminate.After host node is waken up successfully, host node can read status information II and memory, side be written in status information II
Just accident analysis.After memory is written in status information II by host node, storage battery sensor, which can be removed, wakes up host node request
Signal and status information II, and suspend mode continue above-mentioned monitoring process after waiting the second preset time threshold to reach.
Preferably, the status information II includes current time and current SOC value.
Preferably, first preset time threshold is 30 minutes, and second preset time threshold is 30 minutes, described
Preset times threshold value is 4.
When vehicle power supply is in OFF grades, using the present invention can it is exceeded in quiescent current, accumulator electric-quantity is low in the case where
Abnormal data information (i.e. status information I, status information II) is automatically recorded, engineer is facilitated and checks discharged or defective battery problem,
For subsequent analysis vehicle power shortage reason, thoroughly solve the problems, such as that power shortage creates condition relatively.
Detailed description of the invention
Fig. 1 is the flow chart of battery quiescent current monitoring in the present invention.
Fig. 2 is the flow chart of battery SOC monitoring in the present invention.
Specific embodiment
It elaborates with reference to the accompanying drawing to the present invention.
Under vehicle as shown in Figure 1 and Figure 2 after electricity accumulator status monitoring method, including battery quiescent current monitoring
It is monitored with battery SOC.
As shown in Figure 1, battery quiescent current includes: the step of monitoring
S1, in the case where vehicle power supply is in " OFF " shelves, storage battery sensor self-test judges the detection of quiescent current signal
Whether precision meets the requirements, and if it is (indicating that self-test passes through), then storage battery sensor enters quiescent current monitoring standby mode,
Then S2 is executed, is otherwise terminated.
S2, storage battery sensor judge whether LIN bus dormancy time is greater than 30 minutes, if it is, battery senses
Device enters quiescent current monitor state, then executes S3, otherwise continues to execute S2.
S3, storage battery sensor judge whether current static electric current is greater than predetermined current threshold, if it is, S4 is executed,
Otherwise S3 is continued to execute.
S4, storage battery sensor, which are sent, wakes up host node request signal and status information I, then executes S5.
S5, storage battery sensor judge the transmission times for waking up host node request signal whether less than 4, if it is, holding
Row S7, otherwise executes S6.
S6, storage battery sensor, which are removed, wakes up host node request signal and status information I, and suspend mode, then terminates.
S7, storage battery sensor judge whether host node is waken up success, if it is, executing S8, otherwise return and execute
S4。
S8, host node by status information I be written memory after, storage battery sensor remove wake up host node request signal
With status information I, and suspend mode (corresponding LIN bus also suspend mode) then executes S9.
S9, storage battery sensor judge that dormancy time (dormancy time is the dormancy time of storage battery sensor itself) is
It is no to be greater than 30 minutes, S1 is executed if it is, returning, otherwise continues to execute S9.
Wherein, status information I includes current time, current static electric current and current SOC value.
As shown in Fig. 2, battery SOC includes: the step of monitoring
P1, in the case where vehicle power supply is in " OFF " shelves, storage battery sensor self-test judges that the detection accuracy of SOC signal is
No to meet the requirements, if it is (indicating that self-test passes through), then storage battery sensor enters SOC monitoring standby mode, then executes P2,
Otherwise terminate.
P2, storage battery sensor judge whether LIN bus dormancy time is greater than 30 minutes, if it is, battery senses
Device enters SOC monitor state, then executes P3, otherwise continues to execute P2.
P3, storage battery sensor judge whether current SOC value is less than default power threshold, if it is, executing P4, otherwise
Continue to execute P3.
P4, storage battery sensor, which are sent, wakes up host node request signal and status information II, then executes P5.
P5, storage battery sensor judge the transmission times for waking up host node request signal whether less than 4, if it is, holding
Row P7, otherwise executes P6.
P6, storage battery sensor, which are removed, wakes up host node request signal and status information II, and suspend mode, then terminates.
P7, storage battery sensor judge whether host node is waken up success, if it is, executing P8, otherwise return and execute
P4。
P8, host node by status information II be written memory after, storage battery sensor remove wake up host node request letter
Number and status information II, and suspend mode (corresponding LIN bus also suspend mode), then execute P9.
P9, storage battery sensor judge that dormancy time (dormancy time is the dormancy time of storage battery sensor itself) is
It is no to be greater than 30 minutes, P1 is executed if it is, returning, otherwise continues to execute P9.
Wherein, status information II includes current time and current SOC value.
Claims (5)
1. under a kind of vehicle after electricity accumulator status monitoring method, it is characterised in that: including battery quiescent current monitoring and
Battery SOC monitoring；The battery quiescent current monitor the step of include:
S1, in the case where vehicle power supply is in " OFF " shelves, storage battery sensor self-test judges the detection of quiescent current signal
Whether precision meets the requirements, if it is, storage battery sensor enters quiescent current monitoring standby mode, then executes S2, no
Then terminate；
S2, storage battery sensor judge whether LIN bus dormancy time is greater than the first preset time threshold, if it is, electric power storage
Pond sensor enters quiescent current monitor state, then executes S3, otherwise continues to execute S2；
S3, storage battery sensor judge whether current static electric current is greater than predetermined current threshold, if it is, executing S4, otherwise
Continue to execute S3；
S4, storage battery sensor, which are sent, wakes up host node request signal and status information I, then executes S5；
S5, storage battery sensor judge whether the transmission times for waking up host node request signal is less than preset times threshold value, if
It is then to execute S7, otherwise executes S6；
S6, storage battery sensor, which are removed, wakes up host node request signal and status information I, and suspend mode, then terminates；
S7, storage battery sensor judge whether host node is waken up success, if it is, executing S8, otherwise return and execute S4；
S8, after memory is written in status information I by host node, storage battery sensor, which is removed, wakes up host node request signal and shape
State information I, and suspend mode, then execute S9；
S9, storage battery sensor judge whether dormancy time is greater than the second preset time threshold, execute S1 if it is, returning,
Otherwise S9 is continued to execute.
2. under vehicle according to claim 1 after electricity accumulator status monitoring method, it is characterised in that: state letter
Breath I includes current time, current static electric current and current SOC value.
3. under vehicle according to claim 1 or 2 after electricity accumulator status monitoring method, it is characterised in that: the storage
Battery SOC monitor the step of include:
P1, in the case where vehicle power supply is in " OFF " shelves, storage battery sensor self-test judges that the detection accuracy of SOC signal is
It is no to meet the requirements, if it is, storage battery sensor enters SOC monitoring standby mode, P2 is then executed, is otherwise terminated；
P2, storage battery sensor judge whether LIN bus dormancy time is greater than the first preset time threshold, if it is, electric power storage
Pond sensor enters SOC monitor state, then executes P3, otherwise continues to execute P2；
P3, storage battery sensor judge whether current SOC value is less than default power threshold, if it is, executing P4, otherwise continue
Execute P3；
P4, storage battery sensor, which are sent, wakes up host node request signal and status information II, then executes P5；
P5, storage battery sensor judge whether the transmission times for waking up host node request signal is less than preset times threshold value, if
It is then to execute P7, otherwise executes P6；
P6, storage battery sensor, which are removed, wakes up host node request signal and status information II, and suspend mode, then terminates；
P7, storage battery sensor judge whether host node is waken up success, if it is, executing P8, otherwise return and execute P4；
P8, host node by status information II be written memory after, storage battery sensor remove wake up host node request signal and
Status information II, and suspend mode, then execute P9；
P9, storage battery sensor judge whether dormancy time is greater than the second preset time threshold, execute P1 if it is, returning,
Otherwise P9 is continued to execute.
4. under vehicle according to claim 3 after electricity accumulator status monitoring method, it is characterised in that: state letter
Breath II includes current time and current SOC value.
5. under vehicle according to any one of claims 1 to 4 after electricity accumulator status monitoring method, it is characterised in that: institute
Stating the first preset time threshold is 30 minutes, and second preset time threshold is 30 minutes, and the preset times threshold value is 4.
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Cited By (9)
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| CN111308357A (en) * | 2020-04-01 | 2020-06-19 | 一汽解放汽车有限公司 | Battery capacity estimation method, battery management system, vehicle, and storage medium |
| CN111579996A (en) * | 2020-03-27 | 2020-08-25 | 浙江吉利汽车研究院有限公司 | Vehicle power shortage monitoring method, system and medium |
| CN111619473A (en) * | 2020-05-29 | 2020-09-04 | 重庆长安汽车股份有限公司 | Automobile static power supply management system and management method |
| CN111915762A (en) * | 2020-06-30 | 2020-11-10 | 浙江吉利汽车研究院有限公司 | Vehicle feed data recording method and device |
| CN112172713A (en) * | 2020-09-08 | 2021-01-05 | 广州小鹏汽车科技有限公司 | Storage battery management method, storage battery management device, vehicle and storage medium |
| CN113183898A (en) * | 2021-05-06 | 2021-07-30 | 重庆长安汽车股份有限公司 | Device and method for preventing power shortage caused by excessive dark current and vehicle |
| CN113433926A (en) * | 2021-06-21 | 2021-09-24 | 广州鲁邦通物联网科技有限公司 | Ultra-low power consumption fault detection method and ultra-low power consumption elevator opening/closing door fault detection device |
| CN114089194A (en) * | 2020-06-29 | 2022-02-25 | 比亚迪股份有限公司 | System and method for monitoring battery core fault and vehicle |
| CN114563615A (en) * | 2022-02-28 | 2022-05-31 | 重庆长安汽车股份有限公司 | Method and system for measuring dark current of whole vehicle, vehicle and storage medium |
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| CN111915762A (en) * | 2020-06-30 | 2020-11-10 | 浙江吉利汽车研究院有限公司 | Vehicle feed data recording method and device |
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| CN113183898A (en) * | 2021-05-06 | 2021-07-30 | 重庆长安汽车股份有限公司 | Device and method for preventing power shortage caused by excessive dark current and vehicle |
| CN113183898B (en) * | 2021-05-06 | 2023-05-12 | 重庆长安汽车股份有限公司 | Device and method for preventing power shortage caused by excessive dark current and vehicle |
| CN113433926A (en) * | 2021-06-21 | 2021-09-24 | 广州鲁邦通物联网科技有限公司 | Ultra-low power consumption fault detection method and ultra-low power consumption elevator opening/closing door fault detection device |
| CN113433926B (en) * | 2021-06-21 | 2022-05-17 | 广州鲁邦通物联网科技股份有限公司 | Ultra-low power consumption fault detection method and ultra-low power consumption elevator opening/closing door fault detection device |
| CN114563615A (en) * | 2022-02-28 | 2022-05-31 | 重庆长安汽车股份有限公司 | Method and system for measuring dark current of whole vehicle, vehicle and storage medium |
| CN114563615B (en) * | 2022-02-28 | 2024-04-19 | 重庆长安汽车股份有限公司 | Whole vehicle dark current measurement method, system, vehicle and storage medium |
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