CN112636425A - Electric automobile quick charge CC, fill CC awakening circuit slowly - Google Patents
Electric automobile quick charge CC, fill CC awakening circuit slowly Download PDFInfo
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- CN112636425A CN112636425A CN202011520844.0A CN202011520844A CN112636425A CN 112636425 A CN112636425 A CN 112636425A CN 202011520844 A CN202011520844 A CN 202011520844A CN 112636425 A CN112636425 A CN 112636425A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims description 11
- 239000002253 acid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
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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
-
- 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
-
- 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
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a quick charge CC (charge control) and slow charge CC (charge control) wake-up circuit of an electric vehicle, which comprises the following steps: the output end of the charging wake-up circuit is electrically connected with the input end of the power switch circuit; the output end of the power switch circuit is electrically connected with the direct-current power conversion circuit; the output end of the direct current power supply conversion circuit is respectively connected with the CC acquisition circuit and the MCU circuit to supply power to the CC acquisition circuit and the MCU circuit; after receiving the CC signal of the charging gun, the charging wake-up circuit transmits a CC _ OPEN signal to the power switch circuit; the CC acquisition circuit acquires a CC signal of the charging gun and transmits an AD _ CC signal to the MCU control circuit; the MCU circuit transmits an ignition holding signal to the DC switch circuit. According to the invention, after the charging wake-up circuit is arranged to wake up the battery management system for a short time during vehicle charging, the ignition hold signal output by the battery management system MCU control circuit takes over the wake-up until the slow charging is finished, and the MCU stops outputting the ignition hold signal, so that the battery management system is powered off after the charging is finished.
Description
Technical Field
The invention belongs to the technical field of electric automobiles, and particularly relates to a quick-charging CC (capacitor charging) and slow-charging CC (capacitor charging) awakening circuit of an electric automobile.
Background
According to GBT 18487.1-2015 electric automobile conduction charging system part 1 general requirement, fill slowly and fill electric pile after the charge, BMS gets into the sleep mode, and the current CC that fills soon, fills slowly and awaken circuit has following problem: 1. the charger has no CC awakening function, when a customer charges, if the charging awakening function is abnormal, the BMS cannot enter a working state, the charging start fails, and the charging gun is repeatedly plugged and unplugged for many times, so that the customer is not well impressed, and the customer complains and complains. 2. Ordinary CC awakening circuit only is responsible for awakening up BMS, does not have disconnected function, after charging, if do not extract the rifle that charges, BMS will be unable to get into sleep mode, and CC awakening circuit lasts awakens up battery management system, will probably arouse electric automobile 12V lead-acid storage battery insufficient voltage, and the customer is when using the vehicle next time, and the vehicle can't start, causes the customer to complain, complains.
Disclosure of Invention
The invention aims to provide a quick-charging CC and slow-charging CC awakening circuit of an electric automobile, which is characterized in that after a battery management system is awakened for a short time by a charging awakening circuit during vehicle charging, an ignition holding signal output by a battery management system MCU control circuit is taken over to be awakened until slow charging is finished, and an MCU stops outputting the ignition holding signal, so that the power-off function of the battery management system after charging is realized; through triode Q11, after the completion of charging, BMS gets into the sleep mode, prevents that BMS from igniteing, avoids electric automobile 12V lead acid battery insufficient voltage, and the customer is when using the vehicle next time, and the vehicle can't start.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a quick charging CC (charge control) and slow charging CC (charge control) wake-up circuit of an electric automobile, which comprises a charge wake-up circuit, a power switch circuit, a direct-current power supply conversion circuit, a CC acquisition circuit and an MCU (microprogrammed control unit) control circuit; the output end of the charging wake-up circuit is electrically connected with the input end of the power switch circuit; the output end of the power switch circuit is electrically connected with the direct-current power conversion circuit; the output end of the direct current power supply conversion circuit is respectively connected with the CC acquisition circuit and the MCU circuit to supply power to the CC acquisition circuit and the MCU circuit; after the charging wake-up circuit receives the CC signal of the charging gun, the CC _ OPEN signal is transmitted to the power switch circuit; the CC acquisition circuit acquires a CC signal of the charging gun and transmits an AD _ CC signal to the MCU control circuit; the MCU circuit transmits an ignition holding signal to the direct current switch circuit;
the charging wake-up circuit comprises a triode Q3; the emitter of the triode Q3 is connected with a 12V voltage source; the base electrode of the triode Q3 is respectively connected with an S _ CHARGE _ CC end and a Q _ CHARGE _ CC end of the charging gun; the base electrode of the triode Q3 is also connected with a voltage source of a resistor R22-12V in series; the collector of the triode Q3 outputs a CC _ OPEN signal to the power switch circuit;
after the charging wake-up circuit is connected with a charging gun, an S _ CHARGE _ CC signal or a Q _ CHARGE _ CC signal is connected, and the triode Q3 is conducted to transmit a CC _ OPEN signal to the power switch circuit;
the power switching circuit comprises a transistor Q11 and a transistor Q12; the emitting electrode of the triode Q11 is connected with the output end of the charging wake-up circuit; the collector of the triode Q11 is connected with the base of the triode Q12; the base electrode of the triode Q11 is connected with the collector electrode of the triode Q12;
the base of the triode Q12 is also connected with the cathode of a diode D33; the anode of the diode D33 is connected with a resistor in series to the MCU control circuit; the MCU control circuit transmits a CC _ OFF signal to the power switch circuit;
the collector of the triode Q12 is connected in series with a resistor R512 to the emitter of the triode Q11; two ends of the resistor R512 are connected with a capacitor in parallel; the emitter of the triode Q12 is grounded; a resistor R513 is connected in series between an emitter and a base of the triode Q12, and two ends of the resistor R513 are connected with a capacitor C512 in parallel; the transistor Q11 and the transistor Q12 form an interlock circuit.
Further, the base of the triode Q3 is connected in series with a resistor R20 and a diode D13 to the end of S _ CHARGE _ CC; the base of the triode Q3 is also connected in series with a resistor R21 and a diode D14 to the end Q _ CHARGE _ CC.
Further, the collector of the transistor Q3 is connected in series with a resistor R511 to the emitter of the transistor Q11; a grounded capacitor C519 is connected between the resistor R511 and the emitter of the diode Q11.
Further, the transistor Q3 and the transistor Q11 are PNP transistors; the transistor Q12 is an NPN transistor.
Further, the S _ CHARGE _ CC terminal and the Q _ CHARGE _ CC terminal of the charging gun are both grounded terminals.
The invention has the following beneficial effects:
according to the invention, after the charging wake-up circuit is arranged to wake up the battery management system for a short time when a vehicle is charged, the ignition hold signal output by the battery management system MCU control circuit takes over the wake-up until the slow charging is finished, and the MCU stops outputting the ignition hold signal, so that the power-off function of the battery management system after the charging is finished is realized; through triode Q11, after the completion of charging, BMS gets into the sleep mode, prevents that BMS from igniteing, avoids electric automobile 12V lead acid battery insufficient voltage, and the customer is when using the vehicle next time, and the vehicle can't start.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a system block diagram of a fast charge CC and slow charge CC wake-up circuit of an electric vehicle;
fig. 2 is a circuit diagram of a power switch circuit of the charge wake-up circuit and the power switch circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention relates to a quick charge CC and slow charge CC wake-up circuit for an electric vehicle, which comprises a charge wake-up circuit, a power switch circuit, a dc power conversion circuit, a CC acquisition circuit and an MCU control circuit;
the output end of the charging wake-up circuit is electrically connected with the input end of the power switch circuit; the output end of the power switch circuit is electrically connected with the direct current power conversion circuit and provides 12V direct current for the direct current power conversion circuit; the output end of the direct current power supply conversion circuit is respectively connected with the CC acquisition circuit and the MCU circuit to supply power to the CC acquisition circuit and the MCU circuit;
after receiving the CC signal of the charging gun, the charging wake-up circuit transmits a CC _ OPEN signal to the power switch circuit;
the CC acquisition circuit acquires a CC signal of the charging gun and transmits an AD _ CC signal to the MCU control circuit; the MCU circuit transmits an ignition holding signal to the direct current switch circuit;
as shown in fig. 2, the charge wake-up circuit includes a transistor Q3; the emitter of the triode Q3 is connected with a 12V voltage source; the base electrode of the triode Q3 is respectively connected with the S _ CHARGE _ CC end and the Q _ CHARGE _ CC end of the charging gun; the base electrode of the triode Q3 is also connected with a voltage source of 12V through a resistor R22 in series; the collector of the transistor Q3 outputs the CC _ OPEN signal to the power switch circuit; the base of the triode Q3 is connected in series with a resistor R20 and a diode D13 to an S _ CHARGE _ CC end, the anode of the diode D13 is connected with the resistor R20, and the cathode of the diode D13 is connected with the S _ CHARGE _ CC end; the base electrode of the triode Q3 is also connected in series with a resistor R21 and a diode D14 to a Q _ CHARGE _ CC end, the anode of the diode D14 is connected with the resistor R21, and the cathode of the diode D14 is connected with the Q _ CHARGE _ CC end; the diode D13 and the diode D14 are both BAS 21; the S _ CHARGE _ CC end and the Q _ CHARGE _ CC end of the charging gun are both grounded ends; the S _ CHARGE _ CC end and the Q _ CHARGE _ CC end are both grounding modules which are connected in series with a resistor with the resistance value of 1K omega;
after the charging wake-up circuit is connected with a charging gun, an S _ CHARGE _ CC signal or a Q _ CHARGE _ CC signal is connected, and the triode Q3 is conducted to transmit a CC _ OPEN signal to the power switch circuit; when a customer inserts a charging gun, an S _ CHARGE _ CC signal/Q _ CHARGE _ CC signal is accessed, the triode Q3 is opened, and the voltage of CC _ OPEN becomes high level;
the power switch circuit comprises a transistor Q11 and a transistor Q12; the emitter of the triode Q11 is connected with the output end of the charging wake-up circuit; the collector of the transistor Q3 is connected in series with a resistor R511 to the emitter of the transistor Q11; a grounding capacitor C519 is connected between the resistor R511 and the emitter of the diode Q11; the collector of the triode Q11 is connected with the base of the triode Q12; the base electrode of the triode Q11 is connected with the collector electrode of the triode Q12;
the base of the triode Q12 is also connected with the cathode of the diode D33; the anode of the diode D33 is connected with a resistor in series to the MCU control circuit; the MCU control circuit transmits a CC _ OFF signal to the power switch circuit; the collector of the transistor Q12 is connected in series with a resistor R512 to the emitter of the transistor Q11; two ends of the resistor R512 are connected with a capacitor in parallel; the emitter of the triode Q12 is grounded; a resistor R513 is connected in series between an emitter and a base of the triode Q12, and two ends of the resistor R513 are connected with a capacitor C512 in parallel; transistor Q11 and transistor Q12 form an interlock circuit.
The triode Q3 and the triode Q11 are PNP triodes; the triode Q12 is an NPN triode; the resistance values of the resistor R20, the resistor R21 and the resistor R511 are all 10K omega.
The first embodiment is as follows: the embodiment is a circuit working principle of a quick charge CC and slow charge CC wake-up circuit of an electric vehicle: when a customer inserts a charging gun, an S _ CHARGE _ CC signal/Q _ CHARGE _ CC signal is connected, the triode Q3 is turned on, the CC _ OPEN voltage is changed into high level, the power switch circuit is turned on, the BMS starts working, the ignition keeping signal of the BMS is turned on after the BMS works, the MCU control circuit turns on the CC _ OFF signal at the moment, the triode Q12 is turned on, the CC _ OPEN signal is changed from high level to low level, and the CC ignition is finished. Wherein Q11's effect is, and after charging the completion, BMS gets into sleep mode, for preventing CC _ OPEN from igniteing the BMS again, continuously becomes low level with CC _ OPEN, avoids electric automobile 12V lead acid battery insufficient voltage, and the customer is when next use the vehicle, and the vehicle can't start.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A quick charging CC and slow charging CC awakening circuit of an electric vehicle is characterized by comprising a charging awakening circuit, a power switch circuit, a direct current power supply conversion circuit, a CC acquisition circuit and an MCU control circuit;
the output end of the charging wake-up circuit is electrically connected with the input end of the power switch circuit; the output end of the power switch circuit is electrically connected with the direct-current power conversion circuit; the output end of the direct current power supply conversion circuit is respectively connected with the CC acquisition circuit and the MCU circuit to supply power to the CC acquisition circuit and the MCU circuit;
after the charging wake-up circuit receives the CC signal of the charging gun, the CC _ OPEN signal is transmitted to the power switch circuit;
the CC acquisition circuit acquires a CC signal of the charging gun and transmits an AD _ CC signal to the MCU control circuit; the MCU circuit transmits an ignition holding signal to the direct current switch circuit;
the charging wake-up circuit comprises a triode Q3; the emitter of the triode Q3 is connected with a 12V voltage source; the base electrode of the triode Q3 is respectively connected with an S _ CHARGE _ CC end and a Q _ CHARGE _ CC end of the charging gun; the base electrode of the triode Q3 is also connected with a voltage source of a resistor R22-12V in series; the collector of the triode Q3 outputs a CC _ OPEN signal to the power switch circuit;
after the charging wake-up circuit is connected with a charging gun, an S _ CHARGE _ CC signal or a Q _ CHARGE _ CC signal is connected, and the triode Q3 is conducted to transmit a CC _ OPEN signal to the power switch circuit;
the power switching circuit comprises a transistor Q11 and a transistor Q12; the emitting electrode of the triode Q11 is connected with the output end of the charging wake-up circuit; the collector of the triode Q11 is connected with the base of the triode Q12; the base electrode of the triode Q11 is connected with the collector electrode of the triode Q12;
the base of the triode Q12 is also connected with the cathode of a diode D33; the anode of the diode D33 is connected with a resistor in series to the MCU control circuit; the MCU control circuit transmits a CC _ OFF signal to the power switch circuit;
the collector of the triode Q12 is connected in series with a resistor R512 to the emitter of the triode Q11; two ends of the resistor R512 are connected with a capacitor in parallel; the emitter of the triode Q12 is grounded;
a resistor R513 is connected in series between the emitter and the base of the triode Q12, and two ends of the resistor R513 are connected with a capacitor C512 in parallel.
2. The electric vehicle fast charging CC and slow charging CC awakening circuit as claimed in claim 1, wherein a resistor R20 and a diode D13 to an S _ CHARGE _ CC end are connected in series with a base electrode of the triode Q3;
the base of the triode Q3 is also connected in series with a resistor R21 and a diode D14 to the end Q _ CHARGE _ CC.
3. The fast charge CC and slow charge CC wake-up circuit of an electric vehicle as claimed in claim 1, wherein the collector of said transistor Q3 is connected in series with a resistor R511 to the emitter of a transistor Q11; a grounded capacitor C519 is connected between the resistor R511 and the emitter of the diode Q11.
4. The electric vehicle quick charge CC and slow charge CC wake-up circuit as claimed in claim 1, wherein said transistor Q3 and transistor Q11 are PNP transistors; the transistor Q12 is an NPN transistor.
5. The electric vehicle quick CHARGE CC and slow CHARGE CC wake-up circuit as claimed in claim 1, wherein the S _ Charge _ CC terminal and the Q _ Charge _ CC terminal of the CHARGE gun are both grounded terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011520844.0A CN112636425B (en) | 2020-12-21 | 2020-12-21 | Electric automobile fills CC soon, fills CC wake-up circuit slowly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011520844.0A CN112636425B (en) | 2020-12-21 | 2020-12-21 | Electric automobile fills CC soon, fills CC wake-up circuit slowly |
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| CN112636425A true CN112636425A (en) | 2021-04-09 |
| CN112636425B CN112636425B (en) | 2024-06-04 |
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| CN202011520844.0A Active CN112636425B (en) | 2020-12-21 | 2020-12-21 | Electric automobile fills CC soon, fills CC wake-up circuit slowly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466699A (en) * | 2021-06-24 | 2021-10-01 | 安徽锐能科技有限公司 | Slow charging CC signal awakening and detecting circuit |
| CN115366710A (en) * | 2022-10-24 | 2022-11-22 | 沈阳宇龙新能源汽车有限公司 | New energy automobile self-adaptation control system that charges based on big data |
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| CN214380175U (en) * | 2020-12-21 | 2021-10-08 | 安徽贵博新能科技有限公司 | Electric automobile quick charge CC, fill CC awakening circuit slowly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466699A (en) * | 2021-06-24 | 2021-10-01 | 安徽锐能科技有限公司 | Slow charging CC signal awakening and detecting circuit |
| CN113466699B (en) * | 2021-06-24 | 2024-05-14 | 安徽锐能科技有限公司 | Slow-charge CC signal awakening and detecting circuit |
| CN115366710A (en) * | 2022-10-24 | 2022-11-22 | 沈阳宇龙新能源汽车有限公司 | New energy automobile self-adaptation control system that charges based on big data |
| CN115366710B (en) * | 2022-10-24 | 2022-12-27 | 沈阳宇龙新能源汽车有限公司 | New energy automobile self-adaptation control system that charges based on big data |
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| Publication number | Publication date |
|---|---|
| CN112636425B (en) | 2024-06-04 |
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