CN202886569U - On-line automobile storage battery state monitoring device based on FPGA - Google Patents
On-line automobile storage battery state monitoring device based on FPGA Download PDFInfo
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- CN202886569U CN202886569U CN 201220484673 CN201220484673U CN202886569U CN 202886569 U CN202886569 U CN 202886569U CN 201220484673 CN201220484673 CN 201220484673 CN 201220484673 U CN201220484673 U CN 201220484673U CN 202886569 U CN202886569 U CN 202886569U
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Abstract
The utility model provides an on-line automobile storage battery state monitoring device based on FPGA comprising a storage battery voltage detection module, a generator testing logic module, a FPGA core module, a 24-hour power consumption testing module, a storage module, and a comparison module. The storage battery voltage detection module, the generator testing logic module, the 24-hour power consumption testing module, the storage module, and the comparison module are connected with the FPGA core module. The storage battery voltage detection module can be used to detect the voltage of the storage battery. The generator testing logic module can be used to detect the working state of the automobile. The 24-hour power consumption testing module can be used to detect the 24-hour power consumption of the automobile in the flame-out state. The storage module can be used to store the reference voltage, the reference electric quantity, the reference current, the residual electric quantity of the storage battery, and the 24-hour power consumption. The comparison module can be used to compare the detection voltage with the reference voltage, and to compare the detected power consumption with the reference electric quantity. The FPGA core module can be used to control the output of the monitoring device.
Description
Technical field
The utility model relates to vehicle electric field, relates in particular to a kind of online automobile storage battery monitoring device based on FPGA.
Background technology
As everyone knows, the accumulator in the automobile has very important effect in the use procedure of automobile.When car engine, accumulator provides electric energy to generator, drives engine rotation, and meanwhile, accumulator is also to the power supplies such as firing system of field coil and the gasoline engine of automobile instrument, generator.In car running process, when generator can't be supported the automobile power supply, accumulator also provided in short-term auxiliary power supply; Perhaps when generator has surplus energy, the electric energy of accumulators store generator.In addition, accumulator also has filter action, and the superpotential in the time of can absorbing the electricity consumption load changing prevents the electronic equipment on the damage car.
Along with the high speed development of auto industry in China, the automobile popularity rate of China is more and more higher, and the progressively expansion of automobile market has also caused the high speed development of intelligent automobile electronic applications.At the automobile intelligent electronic applications, the intelligent checking system of automobile is owing to its significance to automotive safety develops rapidly, wherein the automobile on-line monitoring technique is the study hotspot in the Intelligent Measurement territory of automobile, it possesses practical, cost is low, the efficient advantages of higher, therefore most of achievement in research has also entered into the application of actual automobile product.When automobile breaks down, can point out in the mode of pilot lamp or display screen.But be directed to the automobile most common failure, comprise battery failure, generator failure, the battery charge storage ability descends, and the faults such as static leakage increase also do not have ripe on-line monitoring system at present.
The utility model content
In order to solve the problems of the prior art, the utility model provides a kind of voltage, electric weight, the electric leakage situation that can monitor automobile storage battery, and can make a determination to accumulator property and generator failure situation, the potential safety hazard that caused by generator and battery failures be can effectively avoid, risk in the automobile use procedure and the online automobile storage battery monitoring device based on FPGA of potential loss possibility reduced.
The utility model is realized the utility model purpose by implementing following technical scheme: design a kind of online automobile storage battery monitoring device based on FPGA, comprise battery tension detection module, generator test logic module, fpga core module, 24 hours power consumption test modules, memory module, comparison module; Described battery tension detection module, generator test logic module, 24 hours power consumption test modules, memory module, comparison modules all are connected with described fpga core module; Wherein, described battery tension detection module is used for detecting in real time the voltage at automobile storage battery the two poles of the earth; Described generator test logic module is for detection of car engine/flame-out duty; The electric weight that described 24 hours power consumption test modules consume in 24 hours under flameout state for detection of automobile; Described memory module is used for stored reference voltage, reference electric quantity, reference current, by the power consumption that detects accumulator dump energy that voltage calculates and described 24 hours power consumption test modules and detect; Voltage and reference voltage that described comparison module is used for detecting compare, and power consumption and the reference electric quantity that detects compared; Described fpga core module is used for controlling the output of described monitoring device.
Automobile is starting under the state, generator be on the automobile power electronic equipment, for charge in batteries.Take domestic kart as example, usually adopt the accumulator of 12V, automobile is starting under the state, and the voltage at accumulator the two poles of the earth is more than or equal to 12.72V; The normal voltage of automobile under flameout state is between 10.8V and the 12.72V; When battery tension is lower than 10.8V, if under the car engine state, illustrate that there is fault in generator, if under the automobile flameout state, the battery short of electricity is described or has fault.Described battery tension detection module is by detecting the voltage of accumulator, the automobile duty that records in conjunction with the generator test logic module again, the reference voltage that will detect in voltage and the memory module by comparison module compares: if automobile is starting under the state, detect voltage more than or equal to reference voltage 12.72V, then generator is normal, otherwise, be lower than reference voltage 12.72V, then generator failure if detect voltage; If automobile under flameout state, detects voltage more than or equal to reference voltage 10.8V, then accumulator is normal, otherwise, be lower than reference voltage 10.8V if detect voltage, then accumulator short of electricity or fault.The dump energy of accumulator is calculated by following formula group (I) and obtains according to detecting voltage, wherein y be electric weight very, x is battery tension:
Because described battery tension detection module detects the voltage at automobile storage battery the two poles of the earth in real time, so the dump energy that is calculated by formula group (I) is the current residual electric weight and is stored in the middle of the described memory module output of the described monitoring device of described fpga core module controls.
Simultaneously, 24 hours power consumption test modules the automobile flameout battery tension X1 of moment, through the voltage X2 after 24 hours respectively substitution dump energy computing formula group (I) draw initial quantity of electricity Y1 and the electric weight Y2 after 24 hours, then 24 hours power consumption is Y=Y1-Y2, and is stored in the memory module.Certainly, in the middle of practical application, X2 is the voltage after 24 hours not necessarily, as required can free setting time interval of monitoring, recycle the linear relationship of this time and 24 hours, can draw equally 24 hours power consumption.For example, X2 is the battery tension of automobile flameout after 4 hours, and according to above-mentioned computing method, 24 hours power consumption is Y=6*(Y1-Y2).
By above-mentioned 24 hours power consumption Y and reference electric quantity are compared, judge the state of battery circuit, then battery circuit is normal if 24 hours power consumption Y is less than reference electric quantity, otherwise, then the battery circuit existence is unusual if 24 hours power consumption Y is greater than reference electric quantity, may there be the situations such as electric leakage, short circuit in the circuit, need to detect battery circuit.The setting of described reference electric quantity is different because of different automobile types, different battery types, half of electric weight when the setting of the utility model reference electric quantity is no more than this battery and is full of with 24 hours power consumption.
As further improvement of the utility model, this device also comprises the detection of electrical leakage module, and described detection of electrical leakage module is connected with the fpga core module, for detection of the leakage current of accumulator under the automobile flameout state.Under the automobile flameout state, the detection of electrical leakage module is connected with the vehicle electronic device of automobile, detect automobile accumulator under flameout state the static leakage electric current and with described memory module in reference current relatively.If the accumulator static leakage electric current that detects, illustrates then that this accumulator has worn out or existence is unusual greater than reference current, need to be maintained or follow and change; If the accumulator static leakage electric current that detects is less than reference current, then this accumulator is normal.Certainly, the size that accumulator allows leakage current is different because of different automobile types and battery types, and described reference current is also different because of vehicle and battery types.
As further improvement of the utility model, this device also comprises with described fpga core module output terminal and being connected, be used for the charactron that the output accumulator detects voltage or dump energy or 24 hours power consumption or static leakage electric current.By the control of fpga core module, in the charactron output present voltage of accumulator or present dump energy or the power consumption in front 24 hours or the static leakage size of current of automobile under flameout state under flameout state.
As further improvement of the utility model, this device also comprises the alarm speaker that is connected with described fpga core module output terminal; When described detection voltage less than the reference voltage in the described memory module or the consumes power in described 24 hours greater than the reference electric quantity in the described memory module or described detection leakage current during greater than reference current, described alarm speaker is reported to the police.Under the car engine state, if detect voltage less than reference voltage 12.72V, generator failure then, alarm speaker is reported to the police; Under the automobile flameout state, if detect voltage less than reference voltage 10.8V, then accumulator short of electricity or fault, alarm speaker is reported to the police; If the consumes power during automobile flameout is excessive, when the consumes power in 24 hours surpassed reference electric quantity in the described memory module, battery circuit was unusual, and alarm speaker is reported to the police; If the static leakage electric current during automobile flameout, illustrates accumulator greater than the reference current in the memory module and may exist the problems such as aging or fault to cause leakage current excessive that alarm speaker is reported to the police.
As further improvement of the utility model, this device also comprises the timer that is connected with described fpga core module; Described 24 hours power consumption test modules obtain automobile flameout moment and the magnitude of voltage of accumulator after the time that described timer is set, according to the relation of two magnitudes of voltage and voltage and electric weight, calculating obtains accumulator at the electric weight of 24 hours internal consumptions and is stored in the described memory module; If automobile starts, then cancel power consumption test in 24 hours within the time of setting.When each motor car engine is flame-out, the time that described 24 hours power consumption test modules will be set according to timer, accumulator is carried out the power consumption test of setting-up time, if not enough setting-up time in the test process and motor car engine is started, then cancel the power consumption test, if surpass setting-up time then test result is effective, and deposit in the memory module, under the fpga core module controls, can export this test result.
As further improvement of the utility model, this device also comprises the first button, the second button, the 3rd button and the 4th button that is connected with described fpga core module respectively; Described the first button is used for the generator duty is detected; Described the second button is used for obtaining the electric weight of automobile previous 24 hours internal consumptions under flameout state; Described the 3rd button is used for obtaining accumulator current voltage or dump energy; Described the 4th button is used for obtaining the leakage current under the automobile flameout state.When pressing the first button, described fpga core module detects the generator duty according to the signal of accumulator current voltage and generator test logic module.Under the car engine state, if detect voltage more than or equal to reference voltage 12.72V, then generator is working properly, and on charactron the output detections voltage swing; Otherwise, if detect voltage less than reference voltage 12.72V, illustrate that there is fault in generator, output detections voltage swing on charactron, alarm speaker is reported to the police.When pressing the second button, described this device of fpga core module controls obtains accumulator under flameout state 24 hours power consumption is also exported at charactron, if this power consumption is greater than then alarm speaker warning of the reference electric quantity in the memory module, otherwise alarm speaker is not reported to the police.When pressing the 3rd button for the first time, described this device of fpga core module controls obtains the accumulator current voltage and exports at charactron; If automobile is under flameout state, the voltage of detection is lower than reference voltage 10.8V, then accumulator short of electricity or fault, and alarm speaker is reported to the police; When again pressing the 3rd button in the given time, described this device of fpga core module controls obtains accumulator current residual electric weight and exports at charactron; As long as again press in the given time the 3rd button, can alternately switch the output of current voltage and current residual electric weight.When pressing the 4th button, described this device of fpga core module controls obtains the leakage current of automobile accumulator under flameout state and exports in charactron, if described leakage current is greater than the reference current in the memory module, be that described leakage current exceeds the leakage current scope that this accumulator allows, it is unusual to illustrate that then battery circuit exists, and alarm speaker is reported to the police.
As further improvement of the utility model, described fpga core module is given tacit consent to when not having key-press input and is in low-power consumption mode; During arbitrary button in pressing first to fourth button, system automatically switches under the corresponding state; System presses in the given time the 3rd button and can switch to " current residual electric weight " state under " current voltage " state.
As further improvement of the utility model, within the described schedule time, press continuously the 3rd button, can reach between " current residual electric weight " in described " current voltage " and automatically switch.
As further improvement of the utility model, the described schedule time is 5 seconds.In 5 seconds, press continuously the 3rd button, can reach between " current residual electric weight " at described " current voltage " and automatically switch; If when not having other key-press inputs, the output time of described the 3rd button is 5 seconds.Certainly, this schedule time also can reset as required, such as being arranged to 3 seconds, 4 seconds, 10 seconds etc.
As further improvement of the utility model, described setting-up time is 3-5 hour.When each motor car engine is flame-out, the power consumption test module will carry out the power consumption test to accumulator in described 24 hours:
When motor car engine is stopped working, the power consumption test module will carry out to accumulator 3 hours power consumption test in described 24 hours, if less than 3 hours in the test process and motor car engine is started again, then cancel the power consumption test, if surpass 3 hours then test result is effective, and deposit in the memory module, under the fpga core module controls, can export this test result.
Perhaps, when motor car engine is stopped working, the power consumption test module will carry out to accumulator 4 hours power consumption test in described 24 hours, if less than 4 hours in the test process and motor car engine is started again, then cancel the power consumption test, if surpass 4 hours then test result is effective, and deposit in the memory module, under the fpga core module controls, can export this test result.
Perhaps, when motor car engine is stopped working, the power consumption test module will carry out to accumulator 5 hours power consumption test in described 24 hours, if less than 5 hours in the test process and motor car engine is started again, then cancel the power consumption test, if surpass 5 hours then test result is effective, and deposit in the memory module, under the fpga core module controls, can export this test result.Certainly, this setting-up time also can reset as required, such as being arranged to 6 hours, 8 hours etc.
By implementing above numerical procedure, the utility model provide based on the online automobile storage battery monitoring device of FPGA can the on-line monitoring automobile storage battery voltage, dump energy, leakage current, flameout state under power consumption, and can normally whether make a determination etc. to accumulator property and generator state, the intelligent automobile electronic applications, a brand-new scheme of detection, monitoring aspect; It can avoid the potential safety hazard that caused by generator and battery failures effectively, reduces risk in the automobile use procedure and the possibility of potential loss, possesses very good application value realistic and promotional value; And the utility model has easy enforcement based on the online battery monitoring device of the automobile of FPGA, price is low, cost performance is high, simple to operate easy-to-use, to the advantage such as automobile improvement is little.
Description of drawings
Fig. 1 is battery tension and automobile duty graph of a relation among the utility model embodiment;
Fig. 2 is based on the online automobile storage battery monitoring device modular structure figure of FPGA among the utility model embodiment;
Fig. 3 is several mode of operations of fpga core module among the utility model embodiment.
Identify among the figure: 1-battery tension detection module; 2-generator test logic module; 3-fpga core module; The 4-memory module; The 5-comparison module; 6-detection of electrical leakage module; The 7-charactron; The 8-alarm speaker; The 9-timer; 10-24 hour power consumption test module; 101-the first button; 102-the second button; 103-the 3rd button, 104-the 4th button.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is further specified.
As shown in Figure 1 and Figure 2, a kind of online automobile storage battery monitoring device based on FPGA comprises battery tension detection module 1, generator test logic module 2, fpga core module 3,24 hours power consumption test modules 10, memory module 4, comparison module 5; Described battery tension detection module 1, generator test logic module 2,24 hours power consumption test modules 10, memory module 4, comparison modules 5 all are connected with described fpga core module 3; Wherein, described battery tension detection module 1 is used for detecting in real time the voltage at automobile storage battery the two poles of the earth; Described generator test logic module 2 is for detection of car engine/flame-out duty; The electric weight that described 24 hours power consumption test modules 10 consume in 24 hours under flameout state for detection of automobile; Described memory module 4 is used for stored reference voltage, reference electric quantity, by the power consumption that detects accumulator dump energy that voltage calculates and described 24 hours power consumption test modules 10 and detect; Voltage and reference voltage that described comparison module 5 is used for detecting compare, and power consumption and the reference electric quantity that detects compared; Described fpga core module 3 is used for controlling the output of described monitoring device.
Automobile is starting under the state, generator be on the automobile power electronic equipment, for charge in batteries.Take domestic kart as example, usually adopt the accumulator of 12V, automobile is starting under the state, and the voltage at accumulator the two poles of the earth is more than or equal to 12.72V; The normal voltage of automobile under flameout state is between 10.8V and the 12.72V; When battery tension is lower than 10.8V, if under the car engine state, illustrate that there is fault in generator, if under the automobile flameout state, the battery short of electricity is described or has fault.Described battery tension detection module 1 is by detecting the voltage of accumulator, the automobile duty that records in conjunction with generator test logic module 2 again, the reference voltage that will detect in voltage and the memory module 4 by comparison module 5 compares: if automobile is starting under the state, detect voltage more than or equal to reference voltage 12.72V, then generator is normal, otherwise, be lower than reference voltage 12.72V, then generator failure if detect voltage; If automobile under flameout state, detects voltage more than or equal to reference voltage 10.8V, then accumulator is normal, otherwise, be lower than reference voltage 10.8V if detect voltage, then accumulator short of electricity or fault.The dump energy of accumulator is calculated by following formula group (I) and obtains according to detecting voltage, wherein y be electric weight very, x is battery tension:
Because described battery tension detection module 1 detects the voltage at automobile storage battery the two poles of the earth in real time, so the dump energy that is calculated by formula group (I) is the current residual electric weight and is stored in the middle of the described memory module 4, the output of the described monitoring device of described fpga core module 3 controls.
Simultaneously, 24 hours power consumption test modules 10 the automobile flameout battery tension X1 of moment, through the voltage X2 after 24 hours respectively substitution dump energy computing formula group (I) draw initial quantity of electricity Y1 and the electric weight Y2 after 24 hours, then 24 hours power consumption is Y=Y1-Y2, and is stored in the memory module 4.Certainly, in the middle of practical application, X2 is the voltage after 24 hours not necessarily, as required can free setting time interval of monitoring, recycle the linear relationship of this time and 24 hours, can draw equally 24 hours power consumption.For example, X2 is the battery tension of automobile flameout after 4 hours, and according to above-mentioned computing method, 24 hours power consumption is Y=6*(Y1-Y2).
By above-mentioned 24 hours power consumption Y and reference electric quantity are compared, judge the state of battery circuit, then battery circuit is normal if 24 hours power consumption Y is less than reference electric quantity, otherwise, then the battery circuit existence is unusual if 24 hours power consumption Y is greater than reference electric quantity, may there be the situations such as electric leakage, short circuit in the circuit, need to detect battery circuit.The setting of described reference electric quantity is different because of different automobile types, different battery types, half of electric weight when the setting of the utility model reference electric quantity is no more than this battery and is full of with 24 hours power consumption.
As shown in Figure 2, this device also comprises detection of electrical leakage module 6, and described detection of electrical leakage module 6 is connected with fpga core module 3, for detection of the leakage current of accumulator under the automobile flameout state.Under the automobile flameout state, detection of electrical leakage module 6 is connected with the vehicle electronic device of automobile, detect automobile accumulator under flameout state the static leakage electric current and with described memory module 4 in reference current relatively.If the accumulator static leakage electric current that detects, illustrates then that this accumulator has worn out or existence is unusual greater than reference current, need to be maintained or follow and change; If the accumulator static leakage electric current that detects is less than reference current, then this accumulator is normal.Certainly, the size that accumulator allows leakage current is different because of different automobile types and battery types, and described reference current is also different because of vehicle and battery types.
As shown in Figure 2, this device also comprises with described fpga core module 3 output terminals and is connected, is used for the charactron 7 that the output accumulator detects voltage or dump energy or 24 hours power consumption or static leakage electric current.By the control of fpga core module 3, in the charactron 7 output present voltages of accumulator or present dump energy or the power consumption in front 24 hours or the static leakage size of current of automobile under flameout state under flameout state.
As shown in Figure 1 and Figure 2, this device also comprises the alarm speaker 8 that is connected with described fpga core module 3 output terminals; When described detection voltage less than the reference voltage in the described memory module 4 or the consumes power in described 24 hours greater than the reference electric quantity in the described memory module 4 or described detection leakage current during greater than reference current, described alarm speaker 8 is reported to the police.Under the car engine state, if detect voltage less than reference voltage 12.72V, generator failure then, alarm speaker 8 is reported to the police; Under the automobile flameout state, if detect voltage less than reference voltage 10.8V, then accumulator short of electricity or fault, alarm speaker 8 is reported to the police; If the consumes power during automobile flameout is excessive, when the consumes power in 24 hours surpassed reference electric quantity in the described memory module 4, battery circuit was unusual, and alarm speaker 8 is reported to the police; If the static leakage electric current during automobile flameout, illustrates accumulator greater than the reference current in the memory module 4 and may exist the problems such as aging or fault to cause leakage current excessive that alarm speaker 8 is reported to the police.
As shown in Figure 2, this device also comprises the timer 9 that is connected with described fpga core module 3; Under the automobile flameout state, described 24 hours power consumption test modules 10 obtain automobile flameout moment and the magnitude of voltage of accumulator after the time that described timer 9 is set, relation according to two magnitudes of voltage and voltage and electric weight, according to the relation of two magnitudes of voltage and voltage and electric weight, calculating obtains accumulator at the electric weight of 24 hours internal consumptions and is stored in the described memory module 4; If automobile starts, then cancel power consumption test in 24 hours within the time of setting.When each motor car engine is flame-out, power consumption test module 10 will carry out the power consumption test to accumulator in described 24 hours:
When motor car engine is stopped working, power consumption test module 10 will carry out to accumulator 3 hours power consumption test in described 24 hours, if less than 3 hours in the test process and motor car engine is started again, then cancel the power consumption test, if surpass 3 hours then test result is effective, and deposit in the memory module 4, under 3 controls of fpga core module, can export this test result.
Perhaps, when motor car engine is stopped working, power consumption test module 10 will carry out to accumulator 4 hours power consumption test in described 24 hours, if less than 4 hours in the test process and motor car engine is started again, then cancel the power consumption test, if surpass 4 hours then test result is effective, and deposit in the memory module 4, under 3 controls of fpga core module, can export this test result.
Perhaps, when motor car engine is stopped working, power consumption test module 10 will carry out to accumulator 5 hours power consumption test in described 24 hours, if less than 5 hours in the test process and motor car engine is started again, then cancel the power consumption test, if surpass 5 hours then test result is effective, and deposit in the memory module 4, under 3 controls of fpga core module, can export this test result.Certainly, this setting-up time also can reset as required, such as being arranged to 6 hours, 8 hours etc.
Such as Fig. 2, shown in Figure 3, this device also comprises the first button 101, the second button 102, the 3rd button 103 and the 4th button 104 that is connected with described fpga core module 3 respectively; Described the first button 101 is used for the generator duty is detected; Described the second button 102 is used for obtaining the electric weight of automobile previous 24 hours internal consumptions under flameout state; The 3rd button 103 is used for obtaining accumulator current voltage or dump energy; Described the 4th button 104 is used for obtaining the leakage current under the automobile flameout state.
When pressing the first button 101, described fpga core module 3 detects the generator duty according to the signal of accumulator current voltage and generator test logic module 2.Under the car engine state, if detect voltage more than or equal to reference voltage 12.72V, then generator is working properly, and on charactron 7 the output detections voltage swing; Otherwise, if detect voltage less than reference voltage 12.72V, illustrate that there is fault in generator, output detections voltage swing on charactron 7, alarm speaker 8 is reported to the police.When pressing the second button 102, described fpga core module 3 these devices of control obtain accumulator under flameout state 24 hours power consumption and in charactron 7 outputs, if this power consumption is greater than then alarm speaker 8 warnings of the reference electric quantity in the memory module 4, otherwise alarm speaker 8 is not reported to the police.When pressing the 3rd button 103 for the first time, described fpga core module 3 these devices of control obtain the accumulator current voltage and export at charactron 7; If automobile is under flameout state, the voltage of detection is lower than reference voltage 10.8V, then accumulator short of electricity or fault, and alarm speaker 8 is reported to the police; When again pressing the 3rd button 103 in the given time, described fpga core module 3 these devices of control obtain accumulator current residual electric weight and export at charactron 7; As long as again press in the given time the 3rd button 103, can alternately switch the output of current voltage and current residual electric weight.When pressing the 4th button 104, described fpga core module 3 these devices of control obtain the leakage current of automobile accumulator under flameout state and export in charactron 7, if described leakage current is greater than the reference current in the memory module 4, be that described leakage current exceeds the leakage current scope that this accumulator allows, it is unusual to illustrate that then battery circuit exists, and alarm speaker 8 is reported to the police.
Described fpga core module 3 acquiescences are in low-power consumption mode; During arbitrary button in pressing first to fourth button, system automatically switches under the corresponding state; System in the given time, for example presses the 3rd button 103 and can switch to " current residual electric weight " state under " current voltage " state in 5 seconds; In the given time, for example press continuously the 3rd button 103 in 5 seconds, can reach between " current residual electric weight " at described " current voltage " and automatically switch; If when not having other key-press inputs, the output time of described the 3rd button 103 is 5 seconds.
In a word, the utility model can the on-line monitoring automobile storage battery voltage, dump energy, leakage current, flameout state under power consumption, and can normally whether make a determination etc. to accumulator property and generator state, the intelligent automobile electronic applications, a brand-new scheme of detection, monitoring aspect; It can avoid the potential safety hazard that caused by generator and battery failures effectively, reduces risk in the automobile use procedure and the possibility of potential loss, possesses very good application value realistic and promotional value; And the utility model has easy enforcement based on the online battery monitoring device of the automobile of FPGA, price is low, cost performance is high, simple to operate easy-to-use, to the advantage such as automobile improvement is little.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. online automobile storage battery monitoring device based on FPGA is characterized in that: comprise battery tension detection module (1), generator test logic module (2), fpga core module (3), 24 hours power consumption test modules (10), memory module (4), comparison module (5); Described battery tension detection module (1), generator test logic module (2), 24 hours power consumption test modules (10), memory module (4), comparison modules (5) all are connected with described fpga core module (3); Wherein, described battery tension detection module (1) is used for detecting in real time the voltage at automobile storage battery the two poles of the earth; Described generator test logic module (2) is for detection of car engine/flame-out duty; The described 24 hours electric weight that under flameout state, consume in 24 hours for detection of automobile of power consumption test module (10); Described memory module (4) is used for stored reference voltage, reference electric quantity, reference current, by detecting accumulator dump energy that voltage calculates and the described 24 hours power consumption that detects of power consumption test module (10); Voltage and reference voltage that described comparison module (5) is used for detecting compare, and power consumption and the reference electric quantity that detects compared; Described fpga core module (3) is used for controlling the output of described monitoring device.
2. device according to claim 1 is characterized in that: also comprise detection of electrical leakage module (6), described detection of electrical leakage module (6) is connected with fpga core module (3), for detection of the leakage current of accumulator under the automobile flameout state.
3. device according to claim 2 is characterized in that: also comprise with described fpga core module (3) output terminal being connected, being used for the charactron (7) that the output accumulator detects voltage or dump energy or 24 hours power consumption or static leakage electric current.
4. device according to claim 3 is characterized in that: also comprise the alarm speaker (8) that is connected with described fpga core module (3) output terminal; When described detection voltage less than the reference voltage in the described memory module (4) or the consumes power in described 24 hours greater than the reference electric quantity in the described memory module (4) or described detection leakage current during greater than reference current, described alarm speaker (8) is reported to the police.
5. the described device of arbitrary claim in 4 according to claim 2 is characterized in that: also comprise the timer (9) that is connected with described fpga core module (3); Described 24 hours the power consumption test module (10) obtain automobile flameout moment and the magnitude of voltage of accumulator after the time that described timer (9) is set, according to the relation of two magnitudes of voltage and voltage and electric weight, calculating obtains accumulator at the electric weight of 24 hours internal consumptions and is stored in the described memory module (4); If automobile starts, then cancel power consumption test in 24 hours within the time of setting.
6. device according to claim 5 is characterized in that: also comprise the first button (101), the second button (102), the 3rd button (103) and the 4th button (104) that are connected with described fpga core module (3) respectively; Described the first button (101) is used for the generator duty is detected; Described the second button (102) is used for obtaining the electric weight of automobile previous 24 hours internal consumptions under flameout state; Described the 3rd button (103) is used for obtaining accumulator current voltage or dump energy; Described the 4th button (104) is used for obtaining the leakage current under the automobile flameout state.
7. device according to claim 6 is characterized in that: described fpga core module (3) is given tacit consent to when not having key-press input and is in low-power consumption mode; During arbitrary button in pressing first to fourth button, system automatically switches under the corresponding state; System presses in the given time the 3rd button and can switch to " current residual electric weight " state under " current voltage " state.
8. device according to claim 7 is characterized in that: press continuously the 3rd button (103) within the described schedule time, can reach between " current residual electric weight " in described " current voltage " and automatically switch.
9. device according to claim 7, it is characterized in that: the described schedule time is 5 seconds.
10. device according to claim 5, it is characterized in that: described setting-up time is 3-5 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201220484673 CN202886569U (en) | 2012-09-21 | 2012-09-21 | On-line automobile storage battery state monitoring device based on FPGA |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220484673 CN202886569U (en) | 2012-09-21 | 2012-09-21 | On-line automobile storage battery state monitoring device based on FPGA |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076292A (en) * | 2014-06-16 | 2014-10-01 | 三一汽车起重机械有限公司 | Power source monitor method and system for engineering vehicle |
| CN104215912A (en) * | 2014-09-04 | 2014-12-17 | 奇瑞汽车股份有限公司 | Storage battery state detecting system and storage battery state detecting method |
| CN107618467A (en) * | 2017-01-25 | 2018-01-23 | 问众智能信息科技（北京）有限公司 | A kind of low battery detection protection system and method for automobile storage battery |
| CN109917294A (en) * | 2019-03-25 | 2019-06-21 | 深圳艾威仕汽车检测设备有限公司 | Vehicle battery electric leakage monitoring method based on big data analysis |
| CN111929600A (en) * | 2020-08-10 | 2020-11-13 | 吉利汽车研究院（宁波）有限公司 | Storage battery diagnosis monitoring method, monitoring system, vehicle and Internet of vehicles cloud platform |
| CN112848966A (en) * | 2020-12-24 | 2021-05-28 | 南京能晶电子科技有限公司 | Lithium battery module connecting circuit stability detection equipment |
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2012
- 2012-09-21 CN CN 201220484673 patent/CN202886569U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076292A (en) * | 2014-06-16 | 2014-10-01 | 三一汽车起重机械有限公司 | Power source monitor method and system for engineering vehicle |
| CN104076292B (en) * | 2014-06-16 | 2016-09-21 | 三一汽车起重机械有限公司 | The method for monitoring power supply of engineering truck and system |
| CN104215912A (en) * | 2014-09-04 | 2014-12-17 | 奇瑞汽车股份有限公司 | Storage battery state detecting system and storage battery state detecting method |
| CN104215912B (en) * | 2014-09-04 | 2017-09-08 | 奇瑞汽车股份有限公司 | Battery condition detection system and method |
| CN107618467A (en) * | 2017-01-25 | 2018-01-23 | 问众智能信息科技（北京）有限公司 | A kind of low battery detection protection system and method for automobile storage battery |
| CN107618467B (en) * | 2017-01-25 | 2019-11-12 | 大众问问(北京)信息科技有限公司 | A kind of low battery detection protection system and method for automobile storage battery |
| CN109917294A (en) * | 2019-03-25 | 2019-06-21 | 深圳艾威仕汽车检测设备有限公司 | Vehicle battery electric leakage monitoring method based on big data analysis |
| CN111929600A (en) * | 2020-08-10 | 2020-11-13 | 吉利汽车研究院（宁波）有限公司 | Storage battery diagnosis monitoring method, monitoring system, vehicle and Internet of vehicles cloud platform |
| CN111929600B (en) * | 2020-08-10 | 2023-09-08 | 吉利汽车研究院（宁波）有限公司 | Storage battery diagnosis monitoring method, monitoring system, vehicle and vehicle networking cloud platform |
| CN112848966A (en) * | 2020-12-24 | 2021-05-28 | 南京能晶电子科技有限公司 | Lithium battery module connecting circuit stability detection equipment |
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