CN107618467A - A kind of low battery detection protection system and method for automobile storage battery - Google Patents
A kind of low battery detection protection system and method for automobile storage battery Download PDFInfo
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- CN107618467A CN107618467A CN201711070612.8A CN201711070612A CN107618467A CN 107618467 A CN107618467 A CN 107618467A CN 201711070612 A CN201711070612 A CN 201711070612A CN 107618467 A CN107618467 A CN 107618467A
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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
- B60L3/12—Recording operating variables ; Monitoring of operating variables
-
- 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
-
- 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
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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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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
- Tests Of Electric Status Of Batteries (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiments of the invention provide a kind of low battery of automobile storage battery detection protection system and method, the system includes：Automobile storage battery, power line and vehicle electronic device, vehicle electronic device include：Voltage comparator, analog-digital converter and processor, the first voltage input of voltage comparator is connected by power line with the voltage output end of automobile storage battery, the second voltage input of voltage comparator is connected with low-voltage prompting threshold voltage, and the output end of the voltage comparator is connected with the processor；The input of the analog-digital converter is connected with the voltage output end of the automobile storage battery, and the output end and switch control terminal of the analog-digital converter are connected with the processor.Combination of embodiment of the present invention voltage comparator and analog-digital converter are detected and fed back to the electricity of automobile storage battery, it can precisely, quickly monitor automobile storage battery electricity, promptly made a response in the case of automobile storage battery low battery, avoid storage battery from consuming excessively and trigger some failures.
Description
Technical field
The present embodiments relate to the low battery detection protection of mobile unit technical field, more particularly to a kind of automobile storage battery
System and method.
Background technology
Storage battery is the main power supply unit of automobile, and whether its electricity directly affects vehicle being capable of normally travel.
In the prior art to the detection of automobile storage battery electricity, often directly to the vehicle electronic device end of connection automobile storage battery
Voltage detecting, by analog-digital converter ADC (Analog-to-Digital Converter, analog-digital converter) to vehicle electronics
The voltage of equipment end is sampled, the voltage obtained by reading ADC samplings, and then estimates the charge condition of storage battery.
Inventor has found that prior art has following defect during the present invention is realized：Due to automobile electrical equipment
The difference of the power consumption of consumption, such as：Power consumption of the same electrical equipment under different application scene is different, is installed on same chassis
Multiple electrical equipments open number difference, cause to connect the line loss on the power line of automobile storage battery and vehicle electronic device and differ
Cause.Meanwhile fluctuated between voltage transient and can also have different phenomenons.Therefore, sampled by ADC directly to vehicle electronic device end
Voltage is detected to estimate that automobile storage battery electricity can cause estimated voltage value to be differed greatly with actual voltage value, causes automobile not
It can response to protect automobile storage battery for automobile storage battery low battery accurately and in time.
The content of the invention
The embodiment of the present invention provides a kind of low battery detection protection system and method for automobile storage battery, accurate, fast to realize
Consumption and the dump energy of automobile storage battery are monitored promptly, so as to response to protect rapidly for automobile storage battery low battery
Automobile storage battery.
In a first aspect, the embodiment of the present invention proposes a kind of low battery detection protection system of automobile storage battery, including：
Voltage comparator (1), A-D converter (2) and main control chip (3), the voltage comparator and A-D converter are equal
It is connected, and is arranged on the electronic equipment of in-car with the main control chip signal, the voltage at the electronic equipment end is examined
Survey and compare.
Second aspect, a kind of low battery detection guard method of automobile storage battery, including：
Judge whether tested in-car electronic equipment is in running order, when the electronic equipment of in-car is in normal work
When, start voltage comparator and A-D converter detects to the voltage at electronic equipment end simultaneously, and to low voltage test knot
Fruit is fed back；When in-car electronic equipment in a dormant state when, start voltage comparator the voltage at electronic equipment end is entered
Row detection, and low voltage test result is fed back.
The third aspect, the embodiment of the present invention propose a kind of low battery detection protection system of automobile storage battery, including, automobile electricity
Bottle, power line and vehicle electronic device, the vehicle electronic device include：Voltage comparator, analog-digital converter and processing
Device, wherein：
The voltage output that the first voltage input of the voltage comparator passes through the power line and the automobile storage battery
End is connected, and the second voltage input of the voltage comparator is connected with low-voltage prompting threshold voltage, the voltage comparator
Output end be connected with the processor；The voltage output end phase of the input of the analog-digital converter and the automobile storage battery
Even, the output end and switch control terminal of the analog-digital converter are connected with the processor；
The voltage comparator, for prompting the output voltage of the automobile storage battery and the low-voltage to threshold voltage
Voltage comparative result is sent to the processor；
The analog-digital converter, the control signal for being sent according to the processor is opened, or closes analog-to-digital conversion
Function, and when the analog-digital conversion function is opened, the output voltage of the automobile storage battery is converted into digital voltage signal hair
Deliver to the processor；
The processor, for the running status according to the vehicle electronic device, different inspection policies are taken to institute
Voltage comparator is stated, and/or the output result of the analog-digital converter is detected；The automobile is being determined according to testing result
When storage battery meets low battery condition, the processing operation of automobile storage battery low battery is performed.
Further, the vehicle electronic device includes：Vehicular rear mirror, or vehicle device.
Fourth aspect, the embodiment of the present invention additionally provide a kind of low battery detection guard method of automobile storage battery, this method
Including：
According to the running status of vehicle electronic device, different inspection policies are taken to turn voltage comparator, and/or modulus
The output result of parallel operation is detected；
When determining that automobile storage battery meets low battery condition according to testing result, automobile storage battery low battery processing behaviour is performed
Make.
Further, according to the running status of vehicle electronic device, different inspection policies are taken to voltage comparator,
And/or the output result of analog-digital converter is detected, including：
If it is determined that the vehicle electronic device is normal operating condition, then with voltage described in the detection frequency acquisition of setting
The output result of comparator；
If it is determined that the voltage comparator continuously exports the number of the first level value more than the first threshold number, then to institute
State analog-digital converter and send opening control signal, and with the output result of analog-digital converter described in the detection frequency acquisition of setting；
Wherein, the opening control signal is used to controlling the analog-digital converter to open analog-digital conversion function, and described first
The output voltage that level value is used to indicate automobile storage battery is less than low-voltage prompting threshold voltage.
Further, according to the running status of vehicle electronic device, different inspection policies are taken to voltage comparator,
And/or the output result of analog-digital converter is detected, in addition to：
If it is determined that the vehicle electronic device is overlond running state, then with voltage described in the detection frequency acquisition of setting
The output result of comparator；
If it is determined that the voltage comparator continuously exports the number of the first level value more than the second threshold number, then to institute
State analog-digital converter and send the opening control signal, and with the output knot of analog-digital converter described in the detection frequency acquisition of setting
Fruit；
Wherein, second threshold number is more than first threshold number.
Further, determine that automobile storage battery meets low battery condition according to testing result, including：
If it is determined that continuously output is less than the digital voltage letter that the low-voltage prompts threshold voltage to the analog-digital converter
Number number more than the 3rd threshold number, and obtain the total degree of the output result of the analog-digital converter not less than the 4th thresholding
Number, it is determined that automobile storage battery meets low battery condition.
Further, if it is determined that the automobile storage battery does not meet low battery condition, and obtains the analog-digital converter
The total degree of output result exceedes the 4th threshold number, then after sending closing control signal to the analog-digital converter, returns
The operation that detects frequency acquisition described in the output result of voltage comparator of the receipt row to set；
Wherein, the closing control signal is used to control the analog-digital converter to close analog-digital conversion function.
Further, according to the running status of vehicle electronic device, different inspection policies are taken to voltage comparator,
And/or the output result of analog-digital converter is detected, in addition to：
If it is determined that the vehicle electronic device is resting state, then with voltage ratio described in the detection frequency acquisition of setting compared with
The output result of device；
Determine that automobile storage battery meets low battery condition according to testing result, including：
If it is determined that the voltage comparator exports the first level value, it is determined that automobile storage battery meets low battery condition；
Wherein, the output voltage that first level value is used to indicate automobile storage battery is less than low-voltage prompting threshold voltage.
Further, the processing operation of automobile storage battery low battery is performed, including it is at least one of following：
Perform the low level protection act for the automobile storage battery；
Vehicle-mounted user is prompted to be charged for the automobile storage battery；And
The vehicle-mounted user is prompted to shut down the vehicle electronic device.
Further, the vehicle electronic device includes：Vehicular rear mirror, or vehicle device.
5th aspect, the embodiment of the present invention additionally provide a kind of vehicle electronic device, including memory, processor and storage
On a memory and the computer program that can run on a processor, realize that the present invention appoints during the computing device described program
The low battery detection guard method of automobile storage battery described in embodiment of anticipating.
6th aspect, the embodiment of the present invention additionally provide a kind of computer-readable recording medium, are stored thereon with computer
Program, the program realize the low battery detection protection side of the automobile storage battery described in any embodiment of the present invention when being executed by processor
Method.
This method combination voltage comparator and A-D converter carry out detection and anti-to the charge condition of automobile storage battery simultaneously
Feedback, can be accurate, efficiently realizes the monitoring to storage battery electricity, in the case of low battery, can promptly make a response, and protects
Protect automobile storage battery, some failures for avoiding storage battery from consuming excessively and triggering.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
The embodiment of the present invention is entered to the charge condition of automobile storage battery simultaneously by combining voltage comparator and analog-digital converter
Row detection and feedback, solve and only directly vehicle electronic device terminal voltage is detected by ADC samplings to estimate automobile electricity
During bottle electricity, the problem of caused estimated voltage value and actual voltage value differ greatly, realize precisely, quickly monitor automobile
The technique effect of storage battery electricity, response to rapidly protect automobile storage battery so as to the low battery for automobile storage battery.
Brief description of the drawings
Fig. 1 is that a kind of low battery of automobile storage battery of the embodiment of the present invention detects the structural representation of protection system；
Fig. 2 is that a kind of low battery of automobile storage battery of the embodiment of the present invention detects the flow chart of guard method；
Fig. 3 is a kind of structural representation of the low battery detection protection system for automobile storage battery that the embodiment of the present invention one provides
Figure；
Fig. 4 is a kind of flow chart of the low battery detection guard method for automobile storage battery that the embodiment of the present invention two provides；
Fig. 5 is a kind of flow chart of the low battery detection guard method for automobile storage battery that the embodiment of the present invention three provides；
Fig. 6 is a kind of flow chart of the low battery detection guard method for automobile storage battery that the embodiment of the present invention four provides；
Fig. 7 is a kind of structural representation of the low battery detection protection device for automobile storage battery that the embodiment of the present invention five provides
Figure；
Fig. 8 is a kind of hardware architecture diagram for vehicle electronic device that the embodiment of the present invention seven provides.
In accompanying drawing mark for：
1 voltage comparator
2 A-D converters
3 main control chips
4 automobile storage batteries
5 power lines
6 electronic equipments
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that in order to just
Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
The embodiments of the invention provide a kind of low battery of automobile storage battery to detect protection system, as shown in figure 1, including：Electricity
Press comparator 1, A-D converter 2 and main control chip 3, the voltage comparator 1 and A-D converter 2 with the main control chip
3 signals are connected, and are arranged on the electronic equipment 6 of in-car, and the voltage at the electronic equipment end is detected and compared.
The embodiment of the present invention additionally provides a kind of low battery detection guard method of automobile storage battery, as shown in Fig. 2 including：
Step S1, judge whether tested in-car electronic equipment is in running order, when the in-car electronic equipment is in
During normal work, start voltage comparator and A-D converter detect to the voltage at the in-car electronic equipment end simultaneously,
And low voltage test result is fed back；When the in-car electronic equipment in a dormant state when, start voltage comparator pair
The voltage at the in-car electronic equipment end is detected, and low voltage test result is fed back.
In the one side of the embodiment of the present invention, the startup voltage comparator and A-D converter are simultaneously to electronic equipment
The voltage at end is detected, and is carried out feedback step to low voltage test result and further comprised：
Step S10, detect that the voltage at electronic equipment end is U1 by voltage comparator, when the U1 detected value is less than
The low-voltage prompt door of setting is prescribed a time limit, and reports low capacity prompt to main control chip, record low-voltage prompting number is n1.
Step S11, detect that the voltage at electronic equipment end is U2 by A-D converter, when the U2 detected value is less than
The low-voltage prompt door of setting is prescribed a time limit, and reports low capacity prompt to main control chip, record low-voltage prompting number is n2.It is preferred that
Ground, it is described that the voltage at electronic equipment end is detected using the influence for the method elimination voltage pulsation for taking average by A-D converter.
Step S12, reach default times N 1 in response to n1 and n2 reaches default times N 2, carry out low battery guarantor immediately
Shield acts, and issues the user with low capacity prompt, wherein, described N1, N2 are positive integer.
In the one side of the embodiment of the present invention, the startup voltage comparator is examined to the voltage at electronic equipment end
Survey, and feedback step is carried out to low voltage test result and further comprised：
Step S20, detect that the voltage at electronic equipment end is U3 by voltage comparator, when the U3 detected value is less than
The low-voltage prompt door of setting is prescribed a time limit, and low capacity prompt is reported to main control chip, while carries out low battery protection act immediately, and
Issue the user with low capacity prompt.
The present invention combines voltage comparator and A-D converter and carries out detection and anti-to the charge condition of automobile storage battery simultaneously
Feedback, can be accurate, efficiently realizes the monitoring to storage battery electricity, in the case of low battery, can promptly make a response, and protects
Protect automobile storage battery, some failures for avoiding storage battery from consuming excessively and triggering.
Embodiment one
Fig. 3 is that a kind of low battery for automobile storage battery that the embodiment of the present invention one provides detects the structural representation of protection system
Figure, the concrete structure of the low battery detection protection system of the automobile storage battery are as follows：
A kind of low battery detection protection system of automobile storage battery, including, automobile storage battery 110, power line 120 and vehicle mounted electric
Sub- equipment 130, vehicle electronic device 130 include：Voltage comparator 131, analog-digital converter 132 and processor 133, wherein：
The voltage output end phase that the first voltage input of voltage comparator 131 passes through power line 120 and automobile storage battery 110
Even, the second voltage input of voltage comparator 131 is connected with low-voltage prompting threshold voltage, the output of voltage comparator 131
End is connected with processor 133；The input of analog-digital converter 132 is connected with the voltage output end of automobile storage battery 110, analog-to-digital conversion
The output end and switch control terminal of device 132 are connected with processor 133；
Voltage comparator 131 is used for the voltage ratio that the output voltage of automobile storage battery 110 and low-voltage are prompted to threshold voltage
Relatively result is sent to processor 133；
The control signal that analog-digital converter 132 is used to be sent according to processor 133 is opened, or closes analog-to-digital conversion work(
Can, and when the analog-digital conversion function is opened, by the output voltage of automobile storage battery 110 be converted to digital voltage signal send to
Processor 133；
Processor 133, for the running status according to vehicle electronic device 130, different inspection policies are taken to voltage
Comparator 131, and/or the output result of analog-digital converter 132 are detected；Automobile storage battery 110 is being determined according to testing result
When meeting low battery condition, the processing operation of automobile storage battery low battery is performed.
Wherein, vehicle electronic device can be vehicular rear mirror or vehicle device, in low battery detection protection system inspection
When measuring automobile storage battery and meeting low battery condition, vehicle-mounted user is prompted to be charged for automobile storage battery or prompt vehicle-mounted user to car
Electronic equipment is carried to shut down etc..
Inventor has found that the voltage measurement accuracy that voltage comparator obtains will be less than analog-to-digital conversion by performing creative labour
The voltage measurement accuracy of device, and operand will be far longer than voltage comparator to analog-digital converter when in use.Therefore, can take
The mode that voltage comparator and analog-digital converter are used in combination, on the premise of operand is reduced as far as possible, improve automobile
The low battery accuracy of detection of storage battery, namely：Tentatively judge whether automobile storage battery is located first by the output result of voltage comparator
In low battery state；If so, can just trigger analog-digital converter carries out the accurate judgement of low battery state, and then can effectively realize
The compromise of amount of calculation and accuracy.
Further, inventor is directed to power consumption condition of the onboard system under different working condition, to above-mentioned automobile storage battery
Low battery detecting system carried out the design of adaptability.Accordingly, the work of the low battery detection protection system of the automobile storage battery
It is as principle：The first voltage input of the voltage comparator 131 is defeated by the voltage of power line 120 and automobile storage battery 110
Go out the connected magnitude of voltage for obtaining the end of vehicle electronic device 130 in end, second voltage input and the low-voltage of voltage comparator 131 carry
Show that threshold voltage is connected for compared with the magnitude of voltage at the end of vehicle electronic device 130.It is in just in vehicle electronic device 130
When often operation or overlond running state, if continuously output is less than low-voltage prompting thresholding to the magnitude of voltage at the end of vehicle electronic device 130
More than certain threshold number, then voltage comparator 131 exports the first level value, and is sent to analog-digital converter 132 and open control
Signal, and determined with the output result of the detection frequency acquisition analog-digital converter 132 of setting, processor 133 according to testing result
When automobile storage battery 110 meets low battery condition, the processing operation of automobile storage battery low battery is performed.If the end of vehicle electronic device 130
Magnitude of voltage exports second electrical level value, 130 normal work of vehicle electronic device higher than low-voltage prompting thresholding, then voltage comparator 131
Make；Vehicle electronic device 130 in a dormant state when, analog-digital converter 132 can not work, now with the detection frequency of setting
Obtain the output result of voltage comparator 131, if it is determined that voltage comparator 131 exports the first level value, it is determined that automobile electricity
Bottle 110 meets low battery condition, performs the processing operation of automobile storage battery low battery.
The technical scheme of the present embodiment, by combining voltage comparator and analog-digital converter simultaneously to the electricity of automobile storage battery
Situation is detected and fed back, can realize detection of the vehicle electronic device under a variety of working conditions to automobile storage battery electricity and
Feedback, realize the effect for precisely, quickly monitoring automobile storage battery electricity.
Embodiment two
Fig. 4 is that a kind of low battery for automobile storage battery that the embodiment of the present invention two provides detects the flow chart of guard method.This
Embodiment is applicable to monitor consumption and the dump energy situation of automobile storage battery, and this method can be examined by the low battery of automobile storage battery
Protection device is surveyed to perform, the device can be realized by the mode of software and/or hardware, and can typically be integrated in vehicle electronics
In equipment, the method for the present embodiment specifically comprises the following steps：
S210, the running status according to vehicle electronic device, different inspection policies are taken to voltage comparator, and/or
The output result of analog-digital converter is detected；
Wherein, the running status of vehicle electronic device can include 3 kinds：Normal operation, overlond running and dormancy.
Typically, can be by detecting CPU in vehicle electronic device (Central Processing Unit, central processing
Device) utilization rate, to determine the running status of the vehicle electronic device.
In a specific example, if detecting that CPU utilization rate is more than 80%, it is determined that the vehicle electronic device
Running status be overlond running state, if detect CPU utilization rate be less than 20%, it is determined that the vehicle electronic device
Running status be resting state, if detecting that CPU utilization rate is between 20%-80%, determine the vehicle electronics
The running status of equipment is normal operating condition.
Optionally, different inspection policies refer to：Under vehicle electronic device normal operation and overlond running two states,
The voltage of vehicle electronic device is detected jointly with reference to the output result of voltage comparator and analog-digital converter, in vehicle electronic device
During dormancy, the voltage of vehicle electronic device is detected only with the output result of voltage comparator.
The reason for so setting is：When vehicle electronic device is resting state, analog-digital converter can not work, and voltage
Comparator being capable of normal work.
S220, when determining that automobile storage battery meets low battery condition according to testing result, perform automobile storage battery low battery at
Reason operation.
Wherein, the processor in vehicle electronic device is responsible for performing the processing operation of automobile storage battery low battery, performed vapour
Automobile battery low battery handles operation：The low level protection act for the automobile storage battery is performed, for example, closing vehicle
In unnecessary electrical appliance, such as air-conditioning, radio；
Can also be：Vehicle-mounted user is prompted to be charged for the automobile storage battery in a manner of voice or image conversion；With
And the vehicle-mounted user is prompted the vehicle electronic device such as to shut down in a manner of voice or image conversion.
Certainly, it will be appreciated by persons skilled in the art that can also take at the automobile storage battery low battery of other modes
Reason operation, such as：Storage battery low battery information is sent to the mobile terminal of association etc., the present embodiment is to this and is not limited.
The embodiment of the present invention takes different inspection policies to voltage ratio by the running status according to vehicle electronic device
Output result compared with device, and/or analog-digital converter is detected, and is determining that automobile storage battery meets low battery bar according to testing result
During part, the processing operation of automobile storage battery low battery is performed, to realize the consumption and the residue electricity that precisely, quickly monitor automobile storage battery
Amount, so as to response to rapidly protect automobile storage battery for automobile storage battery low battery.
Embodiment three
Fig. 5 is a kind of flow chart of the low battery detection guard method for automobile storage battery that the embodiment of the present invention three provides.This
Embodiment is optimized based on above-described embodiment, gives the normal operating condition for vehicle electronic device, performed
Low battery inspection policies, the method for the present embodiment includes：
S310, the running status for determining vehicle electronic device are normal operating condition.
S320, the output result with voltage comparator described in the detection frequency acquisition of setting.
Wherein, the detection frequency can be preset according to actual conditions, such as：30s, 1 minute or 2 minutes etc.,
Here and it is not limited.
S330, judge whether the voltage comparator continuously exports the number of the first level value more than the first threshold number：
If so, perform S340；Otherwise, return and perform S320.
S340, to the analog-digital converter send opening control signal.
Optionally, can it is determined that voltage comparator after continuously the first threshold number of setting exports first level value
To stop obtaining the output result of the voltage comparator, the output result of analog-digital converter is concerned only with.
S350, the output result with analog-digital converter described in the detection frequency acquisition of setting.
Alternatively, it is inferior can be arranged to 1 time, 2 times or 3 according to actual conditions for the first threshold number.Typically, it is described
First threshold number can be with 1 time.
Wherein, the opening control signal is used to controlling the analog-digital converter to open analog-digital conversion function, and described first
The output voltage that level value is used to indicate automobile storage battery is less than low-voltage prompting threshold voltage.
Alternatively, the voltage at vehicle electronic device end is detected by analog-digital converter using the method elimination voltage for taking average
The influence of fluctuation.That is, multiple digital measured values that analog-digital converter is continuously measured take the result after average, as the mould
One output result of number converter.
Typically, the opening control signal can be connected with the Enable Pin of the analog-digital converter, when the modulus turns
After the Enable Pin of parallel operation receives the opening control signal, the analog-digital converter is activated, and starts to perform corresponding modulus turn
Change jobs.
According to the different designs mode of the voltage comparator, first level value can be high level or be low electricity
It is flat.If for example, when the voltage comparator is designed to the output voltage of automobile storage battery less than low-voltage prompting threshold voltage,
High level is exported, then first level value is high level；If the voltage comparator is designed to the output of automobile storage battery
When voltage is less than low-voltage prompting threshold voltage, low level is exported, then first level value is low level.
S360, whether judge to obtain the total degree of the output result of the analog-digital converter not less than the 4th threshold number：
If so, perform S370；Otherwise, S380 is performed.
S370, judge that continuously output is less than the digital voltage letter that the low-voltage prompts threshold voltage to the analog-digital converter
Number number whether more than the 3rd threshold number：If so, performing S390, otherwise, return and perform S350.
Non-limiting as example, the 3rd threshold number could be arranged to 3, and it can be 6 that the 4th threshold number, which is set,.When
So, it is to be understood that those skilled in the art can flexibly set above-mentioned each threshold number, the present embodiment according to actual conditions
To this and it is not limited.
S380, after sending closing control signal to the analog-digital converter, return and perform S320.
In the present embodiment, if after multiple output results of the analog-digital converter are obtained, automobile can not also be determined
Storage battery meets low battery condition, then the output result that can determine voltage comparator is the erroneous judgement to automobile storage battery low battery, because
This can close the analog-digital converter (for example, sending the closing control signal to the Enable Pin of the analog-digital converter),
The low battery state of new automobile storage battery is reacquired by voltage comparator.
S390, determine that automobile storage battery meets low battery condition.
S3100, perform the processing operation of automobile storage battery low battery.
The technical scheme of the present embodiment, when it is determined that the running status of the vehicle electronic device is normal operating conditions,
The mode for taking voltage comparator to be applied in combination with analog-digital converter, low battery detection, and energy are carried out to the vehicle electronic device
It is enough after it is determined that voltage comparator judges by accident to low battery, close analog-digital converter in time, reached and farthest subtracted
On the premise of few analog-digital converter operating pressure, consumption and the dump energy of automobile storage battery precisely, are quickly monitored, so as to be directed to
Automobile storage battery low battery responses to protect rapidly the effect of automobile storage battery.
It should be noted that when it is determined that the running status of vehicle electronic device is overlond running state, automobile storage battery
The implementation process of low battery detection guard method is similar with the normal operating conditions shown in Fig. 5, and difference is：If it is determined that institute
It is overlond running state to state vehicle electronic device, then with the output result of voltage comparator described in the detection frequency acquisition of setting；
If it is determined that the voltage comparator continuously exports the number of the first level value more than the second threshold number, then turn to the modulus
Parallel operation sends the opening control signal, and with the output result of analog-digital converter described in the detection frequency acquisition of setting；Wherein,
Second threshold number is more than first threshold number.
The reason for so setting is：When usual vehicle electronic device is in overlond running state, it consumes the speed of electricity
Degree is accelerated, therefore automobile storage battery electric quantity consumption can be caused to accelerate, and the fluctuation of automobile storage battery electricity also can be obvious, voltage comparator
Judge that number is smaller, False Rate is higher.So in order that vehicle electronic device can in time, accurately detect automobile storage battery
Low battery situation, it is necessary to improve the detection number of voltage comparator.
Example IV
Fig. 6 is a kind of flow chart of the low battery detection guard method for automobile storage battery that the embodiment of the present invention four provides.This
Embodiment is optimized based on above-described embodiment, gives the resting state for vehicle electronic device, and performed is low
Electric power detection strategy, the method for the present embodiment include：
S410, the running status for determining vehicle electronic device are resting state.
S420, the output result with voltage comparator described in the detection frequency acquisition of setting.
Wherein, when vehicle electronic device is resting state, analog-digital converter can not work, and voltage comparator can be normal
Work.
S430, judge whether the voltage comparator exports the first level value：If so, perform S440；Otherwise, return and perform
S420。
S440, determine that automobile storage battery meets low battery condition.
The technical scheme of the present embodiment, when it is determined that the running status of the vehicle electronic device is resting state, only make
Low battery detection is carried out to the vehicle electronic device with voltage comparator, realized in the case of analog-digital converter is disabled,
Based on voltage comparator once or multiple output result, more precisely, quickly monitor automobile storage battery consumption and residue
Electricity, so as to response to protect the effect of automobile storage battery rapidly for automobile storage battery low battery.
Embodiment five
Fig. 7 is that a kind of low battery for automobile storage battery that the embodiment of the present invention five provides detects the structural representation of protection device
Figure, the device specifically include：.
Output result detection module 510, for the running status according to vehicle electronic device, take different inspection policies
The output result of voltage comparator, and/or analog-digital converter is detected；
Low battery processing module 520, for when determining that automobile storage battery meets low battery condition according to testing result, performing
The processing operation of automobile storage battery low battery.
The technical scheme of the embodiment of the present invention takes different detection plans by the running status according to vehicle electronic device
Slightly voltage comparator, and/or the output result of analog-digital converter are detected, determining that automobile storage battery is expired according to testing result
During sufficient low battery condition, the processing operation of automobile storage battery low battery is performed, to realize the consumption for precisely, quickly monitoring automobile storage battery
And dump energy, so as to response to rapidly protect automobile storage battery for automobile storage battery low battery.
On the basis of the various embodiments described above, output result detection module 510 also includes：
First obtains voltage comparator output result module, for if it is determined that the vehicle electronic device is normal operation
State, then with the output result of voltage comparator described in the detection frequency acquisition of setting；
First obtains analog-digital converter output result module, for if it is determined that the voltage comparator continuously output first
The number of level value is more than the first threshold number, then to analog-digital converter transmission opening control signal, and with the inspection of setting
Measured frequency obtains the output result of the analog-digital converter；
Wherein, the opening control signal is used to controlling the analog-digital converter to open analog-digital conversion function, and described first
The output voltage that level value is used to indicate automobile storage battery is less than low-voltage prompting threshold voltage.
First determines low battery condition module, for if it is determined that the analog-digital converter, which continuously exports, is less than the low electricity
The number of the digital voltage signal of pressure prompting threshold voltage obtains the output of the analog-digital converter more than the 3rd threshold number
As a result total degree is not less than the 4th threshold number, it is determined that automobile storage battery meets low battery condition；
If it is determined that the automobile storage battery does not meet low battery condition, and obtain the output result of the analog-digital converter
Total degree exceedes the 4th threshold number, then after sending closing control signal to the analog-digital converter, returns and perform to set
The operation of the output result of voltage comparator described in fixed detection frequency acquisition.
Alternatively, closing control signal is sent to the analog-digital converter by processor.
Second obtains voltage comparator output result module, for if it is determined that the vehicle electronic device is overlond running
State, then with the output result of voltage comparator described in the detection frequency acquisition of setting；
Second obtains analog-digital converter output result module, for if it is determined that the voltage comparator continuously output first
The number of level value is more than the second threshold number, then to the analog-digital converter transmission opening control signal, and with setting
Detection frequency acquisition described in analog-digital converter output result；
Alternatively, the second threshold number is more than first threshold number.
Second determines low battery condition module, for if it is determined that the analog-digital converter, which continuously exports, is less than the low electricity
The number of the digital voltage signal of pressure prompting threshold voltage obtains the output of the analog-digital converter more than the 3rd threshold number
As a result total degree is not less than the 4th threshold number, it is determined that automobile storage battery meets low battery condition；
If it is determined that the automobile storage battery does not meet low battery condition, and obtain the output result of the analog-digital converter
Total degree exceedes the 4th threshold number, then after sending closing control signal to the analog-digital converter, returns and perform to set
The operation of the output result of voltage comparator described in fixed detection frequency acquisition.
Alternatively, the voltage at electronic equipment end is detected by analog-digital converter using the method elimination voltage pulsation for taking average
Influence.
3rd obtains voltage comparator output result module, for if it is determined that the vehicle electronic device is dormancy shape
State, then with the output result of voltage comparator described in the detection frequency acquisition of setting；
3rd determines low battery condition module, for if it is determined that the voltage comparator exports the first level value, then really
Determine automobile storage battery and meet low battery condition.
Low battery processing module is additionally operable to perform the low level protection act for the automobile storage battery；
Vehicle-mounted user can also be prompted to be charged for the automobile storage battery in a manner of voice or image conversion；And carry
Show that the vehicle-mounted user shuts down to the vehicle electronic device.
Wherein, the vehicle electronic device includes：Vehicular rear mirror, or vehicle device.
The said goods can perform the method that any embodiment of the present invention is provided, and possess the corresponding functional module of execution method
And beneficial effect.
Embodiment six
The embodiment of the present invention also provides a kind of storage medium for including computer executable instructions, and the computer can perform
Instruct and detect guard method, this method bag for performing a kind of low battery of automobile storage battery when being performed by computer processor
Include：
Judge whether tested in-car electronic equipment is in running order, when the electronic equipment of in-car is in normal work
When, start voltage comparator and A-D converter detects to the voltage at electronic equipment end simultaneously, and to low voltage test knot
Fruit is fed back；When in-car electronic equipment in a dormant state when, start voltage comparator the voltage at electronic equipment end is entered
Row detection, and low voltage test result is fed back.
Or the computer executable instructions when being performed by computer processor for performing a kind of automobile storage battery
Low battery detects guard method, and this method includes：
According to the running status of vehicle electronic device, different inspection policies are taken to turn voltage comparator, and/or modulus
The output result of parallel operation is detected；
When determining that automobile storage battery meets low battery condition according to testing result, automobile storage battery low battery processing behaviour is performed
Make.
Optionally, the computer executable instructions can be also used for performing the present invention times when being performed by computer processor
A kind of technical scheme of the low battery detection guard method for automobile storage battery that meaning embodiment is provided.
By the description above with respect to embodiment, it is apparent to those skilled in the art that, the present invention
It can be realized by software and required common hardware, naturally it is also possible to realized by hardware, but the former is more in many cases
Good embodiment.Based on such understanding, what technical scheme substantially contributed to prior art in other words
Part can be embodied in the form of software product, and the computer software product can be stored in computer-readable recording medium
In, floppy disk, read-only storage (Read-Only Memory, ROM), random access memory (Random such as computer
Access Memory, RAM), flash memory (FLASH), hard disk or CD etc., including some instructions are causing a computer to set
Standby (can be personal computer, server, or network equipment etc.) performs the method described in each embodiment of the present invention.
Embodiment seven
As shown in figure 8, a kind of hardware architecture diagram of the vehicle electronic device provided for the embodiment of the present invention seven, such as schemes
Shown in 8, the vehicle electronic device includes：
One or more processors 610, in Fig. 8 by taking a processor 610 as an example；
Memory 620；
The vehicle electronic device can also include：Input unit 630 and output device 640.
Processor 610, memory 620, input unit 630 and output device 640 in the vehicle electronic device can be with
Connected by bus or other modes, in Fig. 8 exemplified by being connected by bus.
Memory 620 is used as a kind of non-transient computer readable storage medium storing program for executing, can available for storage software program, computer
Configuration processor and module, the program as corresponding to a kind of low battery detection guard method of automobile storage battery in the embodiment of the present invention
Instruction/module (for example, output result detection module 510 and low battery processing module 520 shown in accompanying drawing 7).Processor 610 is logical
Software program, instruction and module that operation is stored in memory 620 are crossed, so as to perform the various functions of vehicle electronic device
Using and data processing, that is, realize above method embodiment a kind of automobile storage battery low battery detection guard method.
Memory 620 can include storing program area and storage data field, wherein, storing program area can store operation system
Application program required for system, at least one function；Storage data field can store to be created according to using for vehicle electronic device
Data etc..In addition, memory 620 can include high-speed random access memory, non-transitory memory, example can also be included
Such as at least one disk memory, flush memory device or other non-transitory solid-state memories.In certain embodiments, deposit
Reservoir 620 is optional including that can pass through network connection relative to the remotely located memory of processor 610, these remote memories
To terminal device.The example of above-mentioned network include but is not limited to internet, intranet, LAN, mobile radio communication and its
Combination.
Input unit 630 can be used for the numeral or character information for receiving input, and produce the use with vehicle electronic device
The key signals input that family is set and function control is relevant.Output device 640 may include the display devices such as display screen.
The embodiment of the present invention also includes：
A1, a kind of automobile storage battery low battery detection protection system, wherein, the system includes：
Voltage comparator (1), A-D converter (2) and main control chip (3), the voltage comparator and A-D converter are equal
It is connected, and is arranged on the electronic equipment of in-car with the main control chip signal, the voltage at the electronic equipment end is examined
Survey and compare.
B2, a kind of automobile storage battery low battery detection guard method, wherein, this method includes：
Judge whether tested in-car electronic equipment is in running order, when the in-car electronic equipment is in normal work
When, start voltage comparator and A-D converter detects to the voltage at the in-car electronic equipment end simultaneously, and to low electricity
Pressure testing result is fed back；When the in-car electronic equipment in a dormant state when, start voltage comparator to the in-car
The voltage at electronic equipment end is detected, and low voltage test result is fed back.
B3, automobile storage battery according to B2 low battery detection guard method, the startup voltage comparator and modulus
Converter detects to the voltage at electronic equipment end simultaneously, and carries out feedback step to low voltage test result and further wrap
Include：
Detect that the voltage at electronic equipment end is U1 by voltage comparator, when the U1 detected value is low less than setting
Voltage prompt door is prescribed a time limit, and reports low capacity prompt to main control chip, record low-voltage prompting number is n1；
Detect that the voltage at electronic equipment end is U2 by A-D converter, when the U2 detected value is low less than setting
Voltage prompt door is prescribed a time limit, and reports low capacity prompt to main control chip, record low-voltage prompting number is n2；
Reach default times N 1 in response to n1 and n2 reach default times N 2, carry out low battery protection act immediately,
And low capacity prompt is issued the user with, wherein, described N1, N2 are positive integer.
B4, automobile storage battery according to B3 low battery detection guard method, it is described to pass through A-D converter detection electricity
The voltage of sub- equipment end uses the influence for taking the method for average to eliminate voltage pulsation.
B5, automobile storage battery according to B2 low battery detection guard method, the startup voltage comparator is to electronics
The voltage of equipment end is detected, and is carried out feedback step to low voltage test result and further comprised：
Detect that the voltage at electronic equipment end is U3 by voltage comparator, when the U3 detected value is low less than setting
Voltage prompt door is prescribed a time limit, and low capacity prompt is reported to main control chip, while carries out low battery protection act immediately, and is sent out to user
Go out low capacity prompt.
C6, a kind of automobile storage battery low battery detection protection system, wherein, the system includes, automobile storage battery, power line with
And vehicle electronic device, the vehicle electronic device include：Voltage comparator, analog-digital converter and processor, wherein：
The voltage output that the first voltage input of the voltage comparator passes through the power line and the automobile storage battery
End is connected, and the second voltage input of the voltage comparator is connected with low-voltage prompting threshold voltage, the voltage comparator
Output end be connected with the processor；The voltage output end phase of the input of the analog-digital converter and the automobile storage battery
Even, the output end and switch control terminal of the analog-digital converter are connected with the processor；
The voltage comparator, for prompting the output voltage of the automobile storage battery and the low-voltage to threshold voltage
Voltage comparative result is sent to the processor；
The analog-digital converter, the control signal for being sent according to the processor is opened, or closes analog-to-digital conversion
Function, and when the analog-digital conversion function is opened, the output voltage of the automobile storage battery is converted into digital voltage signal hair
Deliver to the processor；
The processor, for the running status according to the vehicle electronic device, different inspection policies are taken to institute
Voltage comparator is stated, and/or the output result of the analog-digital converter is detected；The automobile is being determined according to testing result
When storage battery meets low battery condition, the processing operation of automobile storage battery low battery is performed.
C7, the system according to C6, the vehicle electronic device include：Vehicular rear mirror, or vehicle device.
D8, a kind of automobile storage battery low battery detection guard method, the low electricity applied to the automobile storage battery described in C6 or C7
In amount detection protection system, including：
According to the running status of vehicle electronic device, different inspection policies are taken to turn voltage comparator, and/or modulus
The output result of parallel operation is detected；
When determining that automobile storage battery meets low battery condition according to testing result, automobile storage battery low battery processing behaviour is performed
Make.
D9, the method according to D8, according to the running status of vehicle electronic device, different inspection policies are taken to electricity
Comparator, and/or the output result of analog-digital converter is pressed to be detected, including：
If it is determined that the vehicle electronic device is normal operating condition, then with voltage described in the detection frequency acquisition of setting
The output result of comparator；
If it is determined that the voltage comparator continuously exports the number of the first level value more than the first threshold number, then to institute
State analog-digital converter and send opening control signal, and with the output result of analog-digital converter described in the detection frequency acquisition of setting；
Wherein, the opening control signal is used to controlling the analog-digital converter to open analog-digital conversion function, and described first
The output voltage that level value is used to indicate automobile storage battery is less than low-voltage prompting threshold voltage.
D10, the method according to D9, according to the running status of vehicle electronic device, take different inspection policies pair
Voltage comparator, and/or the output result of analog-digital converter are detected, including：
If it is determined that the vehicle electronic device is overlond running state, then with voltage described in the detection frequency acquisition of setting
The output result of comparator；
If it is determined that the voltage comparator continuously exports the number of the first level value more than the second threshold number, then to institute
State analog-digital converter and send the opening control signal, and with the output knot of analog-digital converter described in the detection frequency acquisition of setting
Fruit；
Wherein, second threshold number is more than first threshold number.
D11, the method according to D9 or D10, determine that automobile storage battery meets low battery condition according to testing result, wrap
Include：
If it is determined that continuously output is less than the digital voltage letter that the low-voltage prompts threshold voltage to the analog-digital converter
Number number more than the 3rd threshold number, and obtain the total degree of the output result of the analog-digital converter not less than the 4th thresholding
Number, it is determined that automobile storage battery meets low battery condition.
D12, the method according to D11, in addition to：
If it is determined that the automobile storage battery does not meet low battery condition, and obtain the output result of the analog-digital converter
Total degree exceedes the 4th threshold number, then after sending closing control signal to the analog-digital converter, returns and perform to set
The operation of the output result of voltage comparator described in fixed detection frequency acquisition；
Wherein, the closing control signal is used to control the analog-digital converter to close analog-digital conversion function.
D13, the method according to D8, according to the running status of vehicle electronic device, take different inspection policies pair
Voltage comparator, and/or the output result of analog-digital converter are detected, including：
If it is determined that the vehicle electronic device is resting state, then with voltage ratio described in the detection frequency acquisition of setting compared with
The output result of device；
Determine that automobile storage battery meets low battery condition according to testing result, including：
If it is determined that the voltage comparator exports the first level value, it is determined that automobile storage battery meets low battery condition；
Wherein, the output voltage that first level value is used to indicate automobile storage battery is less than low-voltage prompting threshold voltage.
E14, a kind of vehicle electronic device, including memory, processor and storage are on a memory and can be on a processor
The computer program of operation, the method as described in any in B2-B5, D8-D13 is realized during the computing device described program.
F15, a kind of computer-readable recording medium, are stored thereon with computer program, when the program is executed by processor
Realize the method as described in any in B2-B5, D8-D13.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
- A kind of 1. low battery detection protection system of automobile storage battery, it is characterised in that including：Voltage comparator (1), A-D converter (2) and main control chip (3), the voltage comparator and A-D converter are and institute State the connection of main control chip signal, and be arranged on the electronic equipment of in-car, the voltage at the electronic equipment end is carried out detection and Compare.
- A kind of 2. low battery detection guard method of automobile storage battery, it is characterised in that including：Judge whether tested in-car electronic equipment is in running order, when the in-car electronic equipment is in normal work, Start voltage comparator and A-D converter detects to the voltage at the in-car electronic equipment end simultaneously, and low-voltage is examined Result is surveyed to be fed back；When the in-car electronic equipment in a dormant state when, start voltage comparator to the in-car electronics The voltage of equipment end is detected, and low voltage test result is fed back.
- 3. the low battery detection protection system of a kind of automobile storage battery, it is characterised in that including automobile storage battery, power line and car Electronic equipment is carried, the vehicle electronic device includes：Voltage comparator, analog-digital converter and processor, wherein：The voltage output end phase that the first voltage input of the voltage comparator passes through the power line and the automobile storage battery Even, the second voltage input of the voltage comparator prompts threshold voltage to be connected with low-voltage, the voltage comparator it is defeated Go out end with the processor to be connected；The input of the analog-digital converter is connected with the voltage output end of the automobile storage battery, institute The output end and switch control terminal for stating analog-digital converter are connected with the processor；The voltage comparator, for the output voltage of the automobile storage battery and the low-voltage to be prompted to the voltage of threshold voltage Comparative result is sent to the processor；The analog-digital converter, the control signal for being sent according to the processor is opened, or closes analog-digital conversion function, And when the analog-digital conversion function is opened, the output voltage of the automobile storage battery is converted into digital voltage signal and sent to institute State processor；The processor, for the running status according to the vehicle electronic device, different inspection policies are taken to the electricity Comparator, and/or the output result of the analog-digital converter is pressed to be detected；The automobile storage battery is being determined according to testing result When meeting low battery condition, the processing operation of automobile storage battery low battery is performed.
- 4. a kind of low battery detection guard method of automobile storage battery, the low battery applied to the automobile storage battery described in claim 3 Detect in protection system, it is characterised in that including：According to the running status of vehicle electronic device, different inspection policies are taken to voltage comparator, and/or analog-digital converter Output result detected；When determining that automobile storage battery meets low battery condition according to testing result, the processing operation of automobile storage battery low battery is performed.
- 5. according to the method for claim 4, it is characterised in that according to the running status of vehicle electronic device, take difference Inspection policies voltage comparator, and/or the output result of analog-digital converter are detected, including：If it is determined that the vehicle electronic device is normal operating condition, then with voltage ratio described in the detection frequency acquisition of setting compared with The output result of device；If it is determined that the voltage comparator continuously exports the number of the first level value more than the first threshold number, then to the mould Number converter sends opening control signal, and with the output result of analog-digital converter described in the detection frequency acquisition of setting；Wherein, the opening control signal is used to control the analog-digital converter to open analog-digital conversion function, first level It is worth for the output voltage for indicating automobile storage battery less than low-voltage prompting threshold voltage.
- 6. according to the method for claim 5, it is characterised in that according to the running status of vehicle electronic device, take difference Inspection policies voltage comparator, and/or the output result of analog-digital converter are detected, including：If it is determined that the vehicle electronic device is overlond running state, then with voltage ratio described in the detection frequency acquisition of setting compared with The output result of device；If it is determined that the voltage comparator continuously exports the number of the first level value more than the second threshold number, then to the mould Number converter sends the opening control signal, and with the output result of analog-digital converter described in the detection frequency acquisition of setting；Wherein, second threshold number is more than first threshold number.
- 7. the method according to claim 5 or 6, it is characterised in that determine that automobile storage battery meets low electricity according to testing result Amount condition, including：If it is determined that the analog-digital converter continuously exports the digital voltage signal less than low-voltage prompting threshold voltage Number obtains the total degree of the output result of the analog-digital converter not less than the 4th thresholding more than the 3rd threshold number Number, it is determined that automobile storage battery meets low battery condition.
- 8. according to the method for claim 7, it is characterised in that also include：If it is determined that the automobile storage battery does not meet low battery condition, and obtain total time of the output result of the analog-digital converter Number exceedes the 4th threshold number, then after sending closing control signal to the analog-digital converter, returns and perform to set Detect the operation of the output result of voltage comparator described in frequency acquisition；Wherein, the closing control signal is used to control the analog-digital converter to close analog-digital conversion function.
- 9. a kind of vehicle electronic device, including memory, processor and storage can be run on a memory and on a processor Computer program, it is characterised in that realized during the computing device described program as described in any in claim 2,4-8 Method.
- 10. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the program is by processor The method as described in any in claim 2,4-8 is realized during execution.
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| CN201710061056.1A CN107323269A (en) | 2017-01-25 | 2017-01-25 | A kind of low battery detection protection system and method for automobile storage battery |
| CN2017100610561 | 2017-01-25 |
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| CN201711070612.8A Active CN107618467B (en) | 2017-01-25 | 2017-11-03 | A kind of low battery detection protection system and method for automobile storage battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112014750A (en) * | 2020-09-01 | 2020-12-01 | 珠海艾派克微电子有限公司 | Battery electric quantity detection method, device, chip and storage medium |
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| CN107323269A (en) | 2017-11-07 |
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Address after: Room 3011, Room 3, Building 27, 25 North Third Ring West Road, Haidian District, Beijing 100098 Applicant after: Public Question (Beijing) Information Technology Co., Ltd. Address before: 102206 No. 522, No. 115, No. 115, Shang Zhuang Road, Shang Zhuang Town, Haidian District, Beijing. Applicant before: Intelligent information technology (Beijing) Co., Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |