CN108407626B - Artificial intelligence electric vehicle battery power detection correction and stage charging circuit - Google Patents
Artificial intelligence electric vehicle battery power detection correction and stage charging circuit Download PDFInfo
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- CN108407626B CN108407626B CN201810031066.5A CN201810031066A CN108407626B CN 108407626 B CN108407626 B CN 108407626B CN 201810031066 A CN201810031066 A CN 201810031066A CN 108407626 B CN108407626 B CN 108407626B
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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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
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- 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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- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The invention discloses a battery electric quantity detection, correction and stage charging circuit of an artificial intelligent electric vehicle, which comprises a battery electric quantity detection circuit, a battery electric quantity detection signal correction circuit, a power supply voltage stabilizing circuit and a stage type constant voltage charging circuit, wherein the battery electric quantity detection circuit filters the voltage of the electric vehicle battery during charging and then enters the battery electric quantity detection signal correction circuit as a detection voltage to carry out error correction, thereby effectively eliminating the virtual electricity phenomenon of the artificial intelligent electric vehicle battery during charging and reducing the ohmic polarization generation condition of the battery, the corrected voltage is a three-stage voltage regulation control signal of the stage type constant voltage charging circuit, and the stage type constant voltage charging circuit is controlled to receive the charging voltage input by the power supply voltage stabilizing circuit and carry out stage type charging (first stage charging, low voltage charging, second stage charging and higher voltage charging, the third stage of charging, low-voltage charging) to ensure the charging efficiency and prevent the battery virtual electricity phenomenon.
Description
Technical Field
The invention relates to the technical field of artificial intelligence electric vehicles, in particular to a circuit for detecting, correcting and charging electric quantity of batteries of an artificial intelligence electric vehicle in stages.
Background
With global climate deterioration, people all discuss how to deal with climate change, energy conservation and emission reduction and new energy search are important ways for reducing environmental damage, and automobile exhaust is an important factor for exacerbating environmental deterioration, so that many enterprise organizations are developing pollution-free electric vehicles.
At present, a pollution-free electric vehicle, namely an artificial intelligence electric vehicle, is charged by a battery, and a virtual electricity phenomenon often occurs, even an ohmic polarization phenomenon of the battery occurs, so that the virtual electricity phenomenon of the battery is caused, the driving mileage of the electric vehicle is influenced, the service life of the battery is greatly reduced, and great inconvenience is brought to the vehicle using experience of people.
The present invention provides a new solution to this problem.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the invention aims to provide an artificial intelligence electric vehicle battery electric quantity detection correction and stage charging circuit, which has the characteristics of ingenious conception and humanized design, is additionally provided with an artificial intelligence electric vehicle battery electric quantity detection signal correction circuit, and effectively solves the problem that the artificial intelligence electric vehicle battery charging usually generates a virtual electricity phenomenon and even generates a battery ohmic polarization phenomenon.
The technical scheme for solving the problem is that the artificial intelligent electric vehicle battery electric quantity detection, correction and stage charging circuit comprises a battery electric quantity detection circuit, a battery electric quantity detection signal correction circuit, a power supply voltage-stabilizing circuit and a stage type constant voltage charging circuit, wherein the battery electric quantity detection circuit reads positive and negative electrode potentials of an artificial intelligent electric vehicle battery tested by an HDGC3912 intelligent battery internal resistance tester during charging through a USB interface J1, calculates voltage through a subtraction circuit taking an operational amplifier AR4 as a core, filters the voltage through an LC filter circuit consisting of an inductor L2 and a capacitor C4 and then enters the non-inverting input end of an operational amplifier AR3 in the battery electric quantity detection signal correction circuit as detection voltage, and simultaneously outputs error voltage through a resistor R24 and enters the non-inverting input end of an operational amplifier AR3 in the battery electric quantity detection signal correction circuit through an inverting proportional circuit taking the operational amplifier AR2 as a core, the non-inverting input end of the operational amplifier AR3 is the superposition of error voltage and detection voltage, namely, the addition circuit with the operational amplifier AR3 as the core corrects the voltage and outputs the corrected voltage after the voltage is stabilized by series-connected voltage-stabilizing tubes Z1 and Z2, the voltage is a three-stage voltage-regulating control signal of a stage-type constant-voltage charging circuit, and the stage-type constant-voltage charging circuit is controlled to receive the voltage input by a power supply voltage-stabilizing circuit and charge the battery of the artificial intelligent electric vehicle in a stage-type manner;
the battery electric quantity detection signal correction circuit corrects the error of the voltage detected by the battery electric quantity detection circuit and provides an accurate three-stage voltage regulation control signal for the stage type constant voltage charging circuit, the battery electric quantity detection signal correction circuit comprises an operational amplifier AR3, the non-inverting input end of the operational amplifier AR3 is respectively connected with the voltage and the error voltage detected and output by the battery electric quantity detection circuit, a resistor R16, a resistor R17 and an operational amplifier AR3 form an addition circuit, wherein the error voltage is output by an inverse proportional circuit taking an operational amplifier AR2 as a core, the voltage of an inverse input end of the operational amplifier AR2 is provided by the nominal +12V voltage of the battery of the artificial intelligent electric vehicle, the series resistance of the potentiometer RP2 and the resistor R23 is set to be 0.07 in the resistance ratio with the resistor R21, namely, the relative error is 0.07, the output error voltage of the operational amplifier AR2 is 0.84V, and the adjusting potentiometer RP2 can adjust the relative error, namely, adjust the magnitude of the error voltage.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1, a battery electric quantity detection circuit reads positive and negative electric potentials of a battery when an artificial intelligent electric vehicle battery tested by an HDGC3912 intelligent battery internal resistance tester is charged through a USB interface J1, voltage is calculated through a subtraction circuit taking an operational amplifier AR4 as a core, the voltage is filtered by an LC filter circuit consisting of an inductor L2 and a capacitor C4 and then enters a non-inverting input end of an operational amplifier AR3 in a battery electric quantity detection signal correction circuit as detection voltage, meanwhile, an error voltage output by an inverting proportional circuit taking the operational amplifier AR2 as a core enters a non-inverting input end of an operational amplifier AR3 in the battery electric quantity detection signal correction circuit through a resistor R24, the non-inverting input end of the operational amplifier AR3 is superposition of the error voltage and the detection voltage, namely, the constant voltage is output after being stabilized through a voltage stabilizing tube Z1 and a Z2 which are connected in series after being corrected by an addition circuit taking the operational amplifier AR3 as a core, and the voltage is a three-stage, the control stage type constant voltage charging circuit receives the input of the power supply voltage stabilizing circuit and charges the battery of the artificial intelligent electric vehicle in a stage mode, the artificial intelligent electric vehicle battery power detection signal correction circuit is added, the phenomenon of virtual electricity caused by charging of the artificial intelligent electric vehicle battery is effectively eliminated, and the ohmic polarization of the battery is reduced.
2, the different voltage state of battery needs different charging voltage, first stage charges, charge for the low-voltage, because the battery current is less, need charge for a long time, consequently need make battery voltage, the temperature resumes normal state, it can produce battery ohm polarization phenomenon to be convenient for charge for a long time, the second stage charges, charge for higher pressure, the electric quantity of battery is not low nor high very much, consequently charge time is moderate, can adopt higher voltage to charge, improve charging efficiency, the third stage charges, charge for the low pressure, because the battery electric quantity at this moment is higher, the charge time end, adopt low-voltage charging can prevent to appear the battery virtual electricity phenomenon.
Drawings
FIG. 1 is a block diagram of the circuit connection of the battery power detection, correction and stage charging circuit of the artificial intelligent electric vehicle of the present invention.
FIG. 2 is a schematic diagram of the circuit connection of the artificial intelligence electric vehicle battery power detection, correction and stage charging circuit of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1 to 2. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
The first embodiment of the circuit for detecting, correcting and stage charging the battery level of the artificial intelligent electric vehicle comprises a battery level detection circuit, a battery level detection signal correction circuit, a power supply voltage stabilizing circuit and a stage type constant voltage charging circuit, wherein the battery level detection circuit reads the positive and negative electrode potentials of the battery during charging of the artificial intelligent electric vehicle battery tested by an HDGC3912 intelligent battery internal resistance tester through a USB interface J1, calculates the voltage through a subtraction circuit with an operational amplifier AR4 as the core, filters the voltage through an LC filter circuit consisting of an inductor L2 and a capacitor C4 and then enters the non-inverting input end of an operational amplifier AR3 in the battery level detection signal correction circuit as the detection voltage, simultaneously outputs the error voltage through a resistor R24 by an inverting proportional circuit with the operational amplifier AR2 as the core and enters the non-inverting input end of an operational amplifier AR3 in the battery level detection signal correction circuit, the non-inverting input end of the operational amplifier AR3 is the superposition of the error voltage, namely, an addition circuit taking an operational amplifier AR3 as a core corrects the voltage and outputs the corrected voltage after the voltage is stabilized by series-connected voltage-stabilizing tubes Z1 and Z2, the voltage is a three-stage voltage-regulating control signal of a stage-type constant-voltage charging circuit, and the stage-type constant-voltage charging circuit is controlled to receive the voltage input by a power supply voltage-stabilizing circuit and charge the battery of the artificial intelligent electric vehicle in a stage-type manner;
the battery power detection signal correction circuit corrects errors of voltage detected by the battery power detection circuit and provides accurate three-stage voltage regulation control signals for the stage type constant voltage charging circuit, the non-inverting input end of the operational amplifier AR3 is respectively connected with the voltage and the error voltage detected and output by the battery power detection circuit, the resistors R16, R17 and the operational amplifier AR3 form an addition circuit, the error voltage is output by an inverting proportional circuit taking the operational amplifier AR2 as a core, the voltage of the inverting input end of the operational amplifier AR2 is provided by the nominal +12V voltage of an artificial intelligent electric vehicle battery, the series resistance of the potentiometer RP2 and the resistor R23 and the resistance ratio of the resistor R21 are set to be 0.07, namely the relative error is 0.07, the output error voltage of the operational amplifier AR2 is 0.84V, and the relative error can be adjusted by the adjustment potentiometer RP2, namely the magnitude of the error voltage is adjusted.
In the second embodiment, on the basis of the first embodiment, the staged constant voltage charging circuit is divided into three stages for charging, different charging voltages are required for different voltage states of the battery, when the battery power detection circuit detects that the battery voltage of the artificial intelligent electric vehicle is 0-30%, the first stage of charging is low-voltage charging, and the battery needs to be charged for a long time due to less current of the battery, so that the voltage and the temperature of the battery need to be recovered to normal states, and ohmic polarization of the battery can be generated during long-time charging, the triode Q5 in the staged constant voltage charging circuit is turned on, the collector of the triode Q5 receives the voltage input by the voltage stabilizing circuit from the power supply, the voltage is output to the charging interface of the artificial intelligent electric vehicle through the CE junction of the triode Q5, the resistor R10 and the OUT terminal, namely, the battery of the artificial intelligent electric vehicle is charged, when the battery power detection circuit detects that the battery voltage of the artificial intelligent electric vehicle is, the second stage of charging is higher voltage charging, the battery capacity is not low or extremely high, therefore, the charging time is moderate, the higher voltage charging can be adopted, the charging efficiency is improved, the signal output by the battery capacity detection circuit leads the triodes Q5 and Q4 to be conducted, at the moment, the voltage input by the power supply voltage stabilizing circuit passes through the triode Q5 and then passes through the resistors R8 and R18 to be connected in series and then is connected with the resistor R10 in parallel, the voltage is output to the charging interface of the artificial intelligent electric vehicle from the OUT end, namely, the artificial intelligent electric vehicle battery is charged, wherein, the collector of the triode Q4 is connected with the emitter of the triode Q5, the emitter of the triode Q4 is connected with one end of the resistor R8, when the battery capacity detection circuit detects that the battery capacity of the artificial intelligent electric vehicle is more than 80%, the third stage of charging is low voltage charging, because the battery capacity is higher at the moment, the charging time end, the signal that the battery power detection circuit outputs makes triode Q5, Q4 and triode Q6 all turn on, the collector of triode Q6 connects the other end of resistance R8, the emitter of triode Q6 connects one end of resistance R9, another end of resistance R9 connects OUT end, compare the second stage, increased the resistance R9 parallel with resistance R18, the voltage that the power supply voltage regulator circuit of power input flows through the triode Q5 and connects in series with resistance R10 parallel circuit after resistance R8 and R18, output voltage to the artificial intelligence electric motor car charging interface by OUT end output voltage, wherein the voltage that flows through resistance R8 is exported after resistance R18 and resistance R9 parallel circuit, also be for the artificial intelligence electric motor car battery charge.
In a third embodiment, on the basis of the first embodiment, the power supply voltage stabilizing circuit samples and two-stage voltage to regulate the gate voltage of the MOS transistor, so that the output voltage between the drain and the source is further stabilized, the drain of the MOS transistor MOS1 is connected to the power supply input terminal, the diode D2 is used as a protection diode to prevent the MOS transistor from being burned out due to excessive current, the source of the MOS transistor MOS1 is used as a regulation voltage terminal, the voltage is collected by a sampling circuit composed of a resistor R12, a resistor R13 and a potentiometer RP1, the transistors Q7 and Q8 are triggered step by step, the coils of the relays K1 and K2 are powered, the resistor R19, the resistor R20 and the resistor R15 or the resistor R19, the resistor R20, the resistor R15 and the resistor R14 are connected in parallel to provide voltage to the gate of the MOS transistor 1, specifically, when the output voltage is low, the diode D4 is connected, the low voltage, the resistor R5 and the resistor R20 are coupled to the gate of the MOS transistor is coupled to the MOS 57324, when the output voltage is higher than 20%, the triode Q7 is conducted, the triode Q8 is conducted, the relays K1 and K2 are electrified, the normally open contact is closed, the +5V resistor R19, the resistors R20 and R14 which are connected in parallel form a voltage division circuit, and the reduced voltage is applied to the grid electrode of the MOS tube MOS 4623 to enable the drain-source to output the stable voltage.
The invention relates to a circuit for detecting, correcting and charging stage of battery capacity of an artificial intelligent electric vehicle when in use, which comprises a battery capacity detection circuit, a battery capacity detection signal correction circuit, a power supply voltage-stabilizing circuit and a stage-type constant voltage charging circuit, wherein the battery capacity detection circuit reads positive and negative electrode potentials of a battery during charging of the artificial intelligent electric vehicle battery tested by an HDGC3912 intelligent battery internal resistance tester through a USB interface J1, calculates voltage through a subtraction circuit taking an operational amplifier AR4 as a core, filters the voltage through an LC filter circuit consisting of an inductor L2 and a capacitor C4 as detection voltage and enters the non-inverting input end of an operational amplifier AR3 in the battery capacity detection signal correction circuit, and simultaneously outputs error voltage through a resistor R24 and enters the non-inverting input end of the operational amplifier AR3 in the battery capacity detection signal correction circuit through an inverting proportional circuit taking the operational amplifier AR2 as a core, the non-inverting input terminal of the operational amplifier AR3 is the superposition of the error voltage and the detection voltage, that is, the operational amplifier AR3 is the additive circuit of the core after being corrected and stabilized by the series-connected voltage-stabilizing tubes Z1 and Z2, and then the corrected voltage is the three-stage voltage-regulating control signal of the stage-type constant voltage charging circuit, the stage-type constant voltage charging circuit is controlled to receive the voltage input by the power supply voltage-stabilizing circuit for charging the battery of the artificial intelligent electric vehicle in a stage-type manner, the battery capacity detection signal correction circuit performs error correction on the voltage detected by the battery capacity detection circuit and provides the accurate three-stage voltage-regulating control signal for the stage-type constant voltage charging circuit, the non-inverting input terminal of the operational amplifier AR3 is respectively connected with the voltage and the error voltage detected and output by the battery capacity detection circuit, the resistors R16, R17 and the operational amplifier AR3 form the additive circuit, wherein the error voltage is output by the operational amplifier AR2, wherein the voltage of the reverse phase input end of the operational amplifier AR2 is provided by the nominal +12V voltage of the battery of the artificial intelligent electric vehicle, the series resistance of the potentiometer RP2 and the resistor R23 is set to be 0.07, namely the resistance ratio of the resistor RP 3526 to the resistor R21 is set to be 0.07, namely the relative error is set to be 0.07, the output error voltage of the operational amplifier AR2 is 0.84V, the relative error can be adjusted by the potentiometer RP2, namely the error voltage is adjusted, different charging voltages are needed in different voltage states of the battery, when the battery electric quantity detection circuit detects the voltage quantity of the battery of the artificial intelligent electric vehicle to be 0-30%, the first stage charging is low-voltage charging, because the battery current is less and needs to be charged for a long time, the battery voltage and temperature need to be restored to the normal state, the ohmic polarization phenomenon of the battery can be generated by the long-time charging, when the battery electric vehicle, the second stage charges, for higher voltage charging, the electric quantity of battery is neither low nor high very much, therefore charge time is moderate, can adopt higher voltage to charge, improves charge efficiency, when battery electric quantity detection circuitry detects artificial intelligence electric motor car battery voltage volume and is more than 80% state, the third stage charges, for low voltage charging, because the battery electric quantity this moment is higher, the charge time end adopts low voltage charging can prevent to appear the battery virtual electricity phenomenon.
While the invention has been described in further detail with reference to specific embodiments thereof, it is not intended that the invention be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (3)
1. The artificial intelligent electric vehicle battery electric quantity detection correction and stage charging circuit comprises a battery electric quantity detection circuit, a battery electric quantity detection signal correction circuit, a power supply voltage stabilizing circuit and a stage type constant voltage charging circuit, and is characterized in that the battery electric quantity detection circuit reads positive and negative electrode potentials of a battery during charging of an artificial intelligent electric vehicle battery tested by an HDGC3912 intelligent battery internal resistance tester through a USB interface J1, calculates voltage through a subtraction circuit taking an operational amplifier AR4 as a core, filters the voltage through an LC filter circuit consisting of an inductor L2 and a capacitor C4 to serve as detection voltage to enter the non-inverting input end of an operational amplifier AR3 in the battery electric quantity detection signal correction circuit, and simultaneously outputs error voltage through a resistor R24 and enters the non-inverting input end of an operational amplifier AR3 in the battery electric quantity detection signal correction circuit by taking an inverting proportional circuit taking the operational amplifier AR2 as a core, the in-phase input end of the operational amplifier AR3 is the superposition of error voltage and detection voltage, namely, the addition circuit with the operational amplifier AR3 as the core corrects the voltage and outputs the corrected voltage after the voltage is stabilized by series-connected voltage-stabilizing tubes Z1 and Z2, the voltage is a three-stage voltage-regulating control signal of a stage-type constant-voltage charging circuit, and the control stage-type constant-voltage charging circuit receives the input voltage of the battery electric quantity detection signal correction circuit and the power supply voltage-stabilizing circuit and carries out stage-type charging on the battery of the artificial intelligent electric vehicle;
the battery electric quantity detection signal correction circuit corrects the error of the voltage detected by the battery electric quantity detection circuit and provides an accurate three-stage voltage regulation control signal for the stage type constant voltage charging circuit, the battery electric quantity detection signal correction circuit comprises an operational amplifier AR3, the non-inverting input end of the operational amplifier AR3 is respectively connected with the voltage and the error voltage detected and output by the battery electric quantity detection circuit, a resistor R16, a resistor R17 and an operational amplifier AR3 form an addition circuit, wherein the error voltage is output by an inverse proportional circuit taking an operational amplifier AR2 as a core, the voltage of an inverse input end of the operational amplifier AR2 is provided by the nominal +12V voltage of the battery of the artificial intelligent electric vehicle, the series resistance of the potentiometer RP2 and the resistor R23 is set to be 0.07 in the resistance ratio with the resistor R21, namely, the relative error is 0.07, the output error voltage of the operational amplifier AR2 is 0.84V, and the adjusting potentiometer RP2 can adjust the relative error, namely adjust the magnitude of the error voltage;
the battery electric quantity detection signal correction circuit comprises an inductor L2, one end of an inductor L2 is connected with one end of a resistor R4 and the output end of an operational amplifier AR4, the other end of the inductor L2 is connected with one end of a capacitor C4 and one end of a resistor R16 respectively, the inverting end of the operational amplifier AR3, the in-phase end of the operational amplifier AR3 is connected with one end of a resistor R17, the other end of a resistor R17 is connected with the other end of a capacitor C4 and the anode of a voltage regulator tube Z2 respectively and is grounded, the output end of the operational amplifier AR3 is connected with the other end of a resistor R16, the cathode of a voltage regulator tube Z2 and the anode of a voltage regulator tube Z1 respectively, and the cathode of the voltage regulator tube Z1 is connected with a voltage.
2. The circuit of claim 1, wherein the step-wise constant voltage charging circuit is divided into three steps, the first step of charging is performed when the battery level detection circuit detects that the battery level of the artificial intelligent electric vehicle is 0-30%, the transistor Q5 in the step-wise constant voltage charging circuit is turned on, the collector of the transistor Q5 receives the voltage input by the voltage regulator circuit, the voltage is output to the charging port of the artificial intelligent electric vehicle through the CE junction of the transistor Q5, the resistor R10 and the OUT terminal, the artificial intelligent electric vehicle battery is charged, the second step of charging is performed when the battery level detection circuit detects that the battery level of the artificial intelligent electric vehicle is 30-80%, the signal output by the battery level detection circuit turns on both the transistors Q5 and Q4, at this time, the voltage input by the power supply voltage stabilizing circuit flows through a circuit which is connected in parallel with a resistor R10 after being connected in series through resistors R8 and R18 through a triode Q5 and a triode Q4, the voltage is output into a charging interface of the artificial intelligent electric vehicle through an OUT end, namely, the artificial intelligent electric vehicle battery is charged, wherein a collector electrode of the triode Q4 is connected with an emitter electrode of the triode Q5, an emitter electrode of the triode Q4 is connected with one end of a resistor R8, when the battery capacity detection circuit detects that the voltage of the artificial intelligent electric vehicle battery is more than 80%, the third stage is charged, a signal output by the battery capacity detection circuit enables the triodes Q5, Q4 and the triode Q6 to be conducted, a collector electrode of the triode Q6 is connected with the other end of the resistor R8, an emitter electrode of the triode Q6 is connected with one end of the resistor R9, the other end of the resistor R9 is connected with the OUT end, compared with the second stage, the resistor R9 connected in parallel with the resistor R18 is added, the voltage input by, the voltage output by the OUT end is output to a charging interface of the artificial intelligent electric vehicle, wherein the voltage flowing through a resistor R8 is output after passing through a parallel circuit of a resistor R18 and a resistor R9, namely, the artificial intelligent electric vehicle is charged with the battery;
the stage type constant voltage charging circuit comprises a triode Q5, the base electrode of a triode Q5 is respectively connected with the output end of an operational amplifier AR3, the other end of a resistor R16, the negative electrode of a voltage regulator Z2, the positive electrode of a voltage regulator Z1 and one end of a resistor R6, the other end of the resistor R6 is respectively connected with one end of a resistor R7 and the base electrode of a triode Q4, the collector electrode of a triode Q5 is connected with one end of a resistor R11, the emitter electrode of a triode Q5 is respectively connected with the collector electrode of a triode Q4 and one end of a resistor R10, the emitter electrode of a triode Q4 is connected with one end of a resistor R8, the other end of a resistor R7 is connected with the base electrode of a triode Q6, the emitter electrode of the triode Q6 is connected with one end of a resistor R6, the collector electrode of the triode Q6 is respectively connected with the other end of the resistor R6 and the other end of the.
3. The circuit for detecting, correcting and stage charging of battery level of artificial intelligent electric vehicle according to claim 1, wherein said power supply voltage regulator circuit further regulates the pulsating dc voltage after transforming and rectifying the inputted commercial power, comprising a MOS1, a MOS1 having a drain connected to the negative terminal of a diode D2, the left terminal of a resistor R19, and the power supply input terminal, a MOS1 having a source connected to one terminal of a resistor R12, a resistor R12 having another terminal connected to the upper terminal of a potentiometer RP1, a potentiometer RP1 having an adjustable terminal connected to the base of a transistor Q7 and the negative terminal of a diode D1, a potentiometer RP1 having a lower terminal connected to one terminal of a ground resistor R13, a transistor Q7 having a collector connected to +5V and a transistor Q8 having a collector connected to the power supply, a transistor Q7 having an emitter connected to the base of a transistor Q8 and one terminal of a coil of a relay K1, and the other terminal of the relay K1 being connected to ground, the emitter of triode Q8 is connected with relay K2 coil one end, relay K2 coil other end is connected ground, relay K1 common terminal, relay K2 common terminal all is connected ground, relay K1 normally open contact connecting resistance R14's one end, relay K2 normally open contact connecting resistance R15's one end, diode D1's positive pole is connected respectively to resistance R14's the other end, resistance R15's the other end, ground resistance R20's one end, resistance R19's one end, MOS pipe MOS 1's grid, resistance R19's right-hand member, resistance R19's other end connection power + 5V.
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| CN201810031066.5A CN108407626B (en) | 2018-01-12 | 2018-01-12 | Artificial intelligence electric vehicle battery power detection correction and stage charging circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108407626A (en) | 2018-08-17 |
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