CN113415180A - Universal low-speed vehicle direct-current charger device, system and implementation method - Google Patents
Universal low-speed vehicle direct-current charger device, system and implementation method Download PDFInfo
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- CN113415180A CN113415180A CN202110791119.5A CN202110791119A CN113415180A CN 113415180 A CN113415180 A CN 113415180A CN 202110791119 A CN202110791119 A CN 202110791119A CN 113415180 A CN113415180 A CN 113415180A
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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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- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by 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
- 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
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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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
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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
- Y02T90/14—Plug-in electric vehicles
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a direct current charger device, a system and an implementation method for a universal low-speed vehicle, and relates to a low-speed vehicle charging technology.A battery type of the low-speed vehicle is judged by judging whether message information is received or not after a charger is connected; the multifunctional desk realizes multiple purposes and is universal; the service efficiency of the equipment is improved, the number of chargers arranged in large-scale factories, business overload places or other large-scale transfer places is reduced, and the equipment investment is reduced.
Description
Technical Field
The invention belongs to the field of charging, relates to a low-speed vehicle charging technology, and particularly relates to a universal low-speed vehicle direct-current charger device, a universal low-speed vehicle direct-current charger system and a universal low-speed vehicle direct-current charger implementation method.
Background
The electric low-speed vehicle refers to a simple electric vehicle with the speed lower than 40Km/h, such as an electric tricycle, a low-speed electric vehicle, a golf cart, a warehouse truck, an electric forklift, a freight car, a sightseeing vehicle, an overhead working truck and other low-speed running vehicles taking electricity as driving energy, and the power energy of the low-speed running vehicles takes a lead-acid storage battery as a power chemical power supply.
In recent years, the market of low-speed vehicles taking lithium batteries as power energy is increasingly strong, and the lithium batteries have the advantages of light weight, large-current discharge, multiple charge-discharge cycle times, long service life and the like, so that the lithium batteries are widely applied to the application market of the low-speed vehicles, such as large-scale factories, business supermans or other large-scale transportation places; since the market development of low-speed vehicles is disordered, the types and voltage grades of batteries adopted by different manufacturers are different, the output voltage, current and output power of the chargers matched with the low-speed vehicles are different according to the types, such as 24V, 36V, 48V, 60, 72V, 90V and the like, the output current is 15A, 20A, 30A and the like, various lithium battery chargers or lead-acid battery chargers with different voltages are required to be arranged according to the characteristics of the batteries of different vehicles, great inconvenience is brought to the use, and the waste of equipment resources is also caused.
Therefore, a universal low-speed vehicle direct-current charger device, a system and an implementation method are provided.
Disclosure of Invention
The invention provides a universal direct-current charger device, a system and an implementation method for low-speed vehicles, which can meet the charging requirements of low-speed vehicles with different voltage grades and different battery types or battery power supply equipment, realize that a charger is suitable for charging different low-speed vehicles as much as possible, reduce the number of chargers in large-scale factories, business overload or other large-scale transportation places, and reduce the equipment investment.
The purpose of the invention can be realized by the following technical scheme:
a general low-speed vehicle direct current charger device is used for charging general low-speed vehicles and comprises a charger, wherein a vehicle charging port is formed in one side of the charger and is connected with a connector, and the charger comprises a power supply conversion module, a charging control module, a processor, a current and voltage sampling module, a data acquisition module and a controlled charging switch;
the other end of the connector is connected with a low-speed vehicle battery pack, and the low-speed vehicle battery pack comprises a storage battery pack or a lithium battery pack;
the battery pack of the low-speed vehicle is also connected with the charger through a controller local area network;
the low-speed vehicle battery pack is connected with a charger through a connector to form a charging main loop, and a controlled charging switch is connected in series on the charging main loop;
further, the current and voltage sampling module is connected with the low-speed vehicle battery pack through a vehicle charging port and is used for detecting output current and output voltage through the vehicle charging port;
furthermore, the charging control module is respectively connected with the power conversion module and the processor, and the processor controls the power conversion module through the charging control module to adjust the output voltage and current of the power conversion module.
Further, the general low-speed direct current charging system comprises a charger, wherein the charger comprises a power supply conversion module, a charging control module, a processor, a current and voltage sampling module, a data acquisition module, a battery management module, a controlled charging switch and a low-speed vehicle battery pack, and the low-speed vehicle battery pack comprises a storage battery pack or a lithium battery pack;
the data acquisition module is used for acquiring the information of the battery pack of the low-speed vehicle and sending the information of the battery pack of the low-speed vehicle to the battery management module; the information of the battery pack of the low-speed vehicle comprises rated charging voltage, rated charging current and the type of the battery pack; the battery management module generates a message according to the information of the low-speed vehicle battery pack sent by the data acquisition module and sends the message to the charger, and the charger generates response information and sends the response information to the battery management module; the response information comprises actual charging voltage and actual charging current;
the low-speed vehicle battery pack is connected with a charger through a connector to form a charging main loop, and a controlled charging switch is connected in series on the charging main loop;
the current and voltage sampling module is used for detecting output current and output voltage through a vehicle charging port and sending the detected output current and output voltage to the processor;
the processor is used for marking the rated charging voltage, the rated charging current, the actual charging voltage and the actual charging current; respectively marked as Ue, Ie, Us, Is;
the processor compares Us and Is with Ue and Ie in real time, and when an overcurrent or short circuit phenomenon occurs, namely Us Is larger than Ue or Is larger than Ie and meets the condition that one Is satisfied, the processor sends a charging abnormal signal to the power supply conversion module;
the power supply conversion module outputs a charging abnormal signal to the charging control unit; the charging control unit blocks the output of the power supply conversion module, and simultaneously sends a charging abnormal signal to the processor, and the processor disconnects the controlled charging switch and closes the charging loop.
Further, the current and voltage sampling module is connected with the low-speed vehicle battery pack through the vehicle charging port and used for detecting output current and output voltage through the vehicle charging port.
The processor controls the power conversion module through the charging control module to adjust the output voltage and current of the power conversion module; when the charger works, the sampling signals of the current and voltage sampling module are respectively sent to the processor and the charging control module, and the processor adjusts the output of the power supply conversion module according to the sampled output voltage and current.
Further, a universal low-speed direct current charging method adopts different methods for a storage battery pack and a lithium battery pack, and charging for the lithium battery pack comprises the following charging steps:
s01, in the online stage, the charger is electrified, the auxiliary power supply in the charger supplies power, the processor starts to work, the controller local area network in the charger receives the information of the low-speed vehicle battery pack of the battery management module and waits for online, and if the online is successful, the next step is carried out;
s02, handshake phase: the charger receives the information of the low-speed vehicle battery pack and analyzes the information of the low-speed vehicle battery pack, if the information analysis fails, the charging process is quitted, and the charger does not output;
s03, charging stage: the charger successfully analyzes the information of the battery pack of the low-speed vehicle, the processor unit analyzes the information into charging voltage and current demand information, the power supply conversion module is switched on to adjust output current and output voltage, the charging switch is switched on, and a charging process is started;
s04, keeping stage: the processor receives the message, analyzes the charging demand information, simultaneously monitors and outputs actual charging voltage and actual charging current in real time through the current and voltage sampling module, and judges whether the electric quantity is full or not by adjusting the output of the power supply conversion module;
s05, end stage: and the processor receives the message information that the battery management module is full of electric quantity, closes the output of the power conversion module, and disconnects the controlled charging switch, so that the charging process is finished.
The charging of the storage battery pack comprises the following charging steps:
t01, online stage: the method comprises the following steps that a charger is powered on, an auxiliary power supply in the charger supplies power, a processor starts to work, a controller local area network in the charger receives information of a low-speed vehicle battery pack of a battery management module and waits for connection, if the connection fails, an overtime waiting stage is started, and the system waits for time T and then enters a voltage detection stage;
t02, voltage detection stage, namely after the online overtime time is over, the charger processor detects the output voltage of the charger through the current and voltage sampling module, if the voltage cannot be detected, the charging process is quitted, and the charger does not output;
if the direct-current voltage is detected to exist, entering a storage battery charging stage;
the processor detects the direct-current voltage through the current and voltage sampling module and judges the voltage grade of the battery pack of the low-speed vehicle;
t03, charging phase: the charger judges the voltage of the battery pack of the low-speed vehicle by detecting the voltage of the charging connection port, and switches on the power conversion module and the controlled charging switch to start a charging process;
t04, holding stage: the processor is connected with the output of the power supply conversion module, monitors the output voltage and current information in real time through the current and voltage sampling module, adjusts the output of the power supply conversion module, and judges whether the electric quantity is full;
and T05, ending the charging process, namely, when the processor detects that the voltage of the storage battery reaches a set value, closing the output of the power supply conversion module, disconnecting the controlled charging switch and ending the charging process.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts a charging conversion module with wide-range direct-current voltage output, the battery type of a low-speed vehicle is judged by judging whether message information is received or not after the charger is connected, when the charger is connected, if the message information is received, the battery system of the vehicle is indicated to be a lithium battery power supply system, the charger judges the output voltage and the output current of the charger by receiving the message information of a battery management module, otherwise, when the charger is connected and overtime, the message information is still not received, the battery system of the vehicle is indicated to be a power supply system taking a lead-acid storage battery as a power source, and the charger judges the charging demand voltage according to the collected storage battery voltage before a controlled charging switch is switched on, and automatically adjusts the output voltage and the current of the charger to charge the storage battery.
The charger system can be connected with low-speed vehicles with different battery types and different voltage grades, and automatically switched to a corresponding charging mode according to the collected information to charge the vehicles, so that the multifunctional charger system is multipurpose and general; the service efficiency of the equipment is improved, the number of chargers arranged in large-scale factories, business overload places or other large-scale transfer places is reduced, and the equipment investment is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a structural diagram of a direct current charger device for a general low-speed vehicle according to the invention.
Fig. 2 is a flow chart of a charging method of the general low-speed vehicle direct-current charger of the invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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.
As shown in fig. 1, a general low-speed vehicle dc charger device is used for charging general low-speed vehicles, and includes a charger, a vehicle charging port is disposed on one side of the charger, the vehicle charging port is connected to a connector, and the charger includes a power conversion module, a charging control module, a processor, a current and voltage sampling module, a data acquisition module, and a controlled charging switch;
the other end of the connector is connected with a low-speed vehicle battery pack, and the low-speed vehicle battery pack comprises a storage battery pack or a lithium battery pack;
the low-speed vehicle battery pack is connected with the charger through a controller local area network, and the data acquisition module is used for acquiring the information of the low-speed vehicle battery pack and sending the information of the low-speed vehicle battery pack to the battery management module; the information of the battery pack of the low-speed vehicle comprises rated charging voltage, rated charging current and the type of the battery pack; the battery management module generates a message according to the information of the low-speed vehicle battery pack sent by the data acquisition module and sends the message to the charger, and the charger generates response information and sends the response information to the battery management module; the response information comprises actual charging voltage and actual charging current;
the low-speed vehicle battery pack is connected with a charger through a connector to form a charging main loop, and a controlled charging switch is connected in series on the charging main loop;
the current and voltage sampling module is used for detecting output current and output voltage through a vehicle charging port and sending the detected output current and output voltage to the processor;
the processor is used for marking the rated charging voltage, the rated charging current, the actual charging voltage and the actual charging current; respectively marked as Ue, Ie, Us, Is;
the processor compares Us and Is with Ue and Ie in real time, and when an overcurrent or short circuit phenomenon occurs, namely Us Is larger than Ue or Is larger than Ie and meets the condition that one Is satisfied, the processor sends a charging abnormal signal to the power supply conversion module;
the power supply conversion module outputs a charging abnormal signal to the charging control unit; the charging control unit blocks the output of the power supply conversion module, and simultaneously sends a charging abnormal signal to the processor, and the processor disconnects the controlled charging switch and closes the charging loop.
It should be noted that the current-voltage sampling module is connected to the low-speed vehicle battery pack through a vehicle charging port and is configured to detect output current and output voltage through the vehicle charging port, when the controlled charging switch is turned off, voltage of the low-speed vehicle battery pack is sampled by the current-voltage sampling module, when the charger works, the controlled charging switch is turned on, output voltage of the charger is sampled by the current-voltage sampling module and transmits the detected output voltage to the processor, the current-voltage sampling module is connected in series to a charging main circuit at the front end of the controlled charging switch, and when the charger works, output current of the charger is sampled by the current sensor and is transmitted to the processor.
The processor controls the power conversion module through the charging control module to adjust the output voltage and current of the power conversion module; when the charger works, the sampling signals of the current and voltage sampling module are respectively sent to the processor and the charging control module, and the processor adjusts the output of the power supply conversion module according to the sampled output voltage and current.
A general low-speed direct current charging system comprises a charger, wherein the charger comprises a power supply conversion module, a charging control module, a processor, a current and voltage sampling module, a data acquisition module, a battery management module, a controlled charging switch and a low-speed vehicle battery pack, and the low-speed vehicle battery pack comprises a storage battery pack or a lithium battery pack;
the low-speed vehicle battery pack is connected with the charger through a controller local area network, and the data acquisition module is used for acquiring the information of the low-speed vehicle battery pack and sending the information of the low-speed vehicle battery pack to the battery management module; the information of the battery pack of the low-speed vehicle comprises rated charging voltage, rated charging current and the type of the battery pack; the battery management module generates a message according to the information of the low-speed vehicle battery pack sent by the data acquisition module and sends the message to the charger, and the charger generates response information and sends the response information to the battery management module; the response information comprises actual charging voltage and actual charging current;
the low-speed vehicle battery pack is connected with a charger through a connector to form a charging main loop, and a controlled charging switch is connected in series on the charging main loop;
the current and voltage sampling module is used for detecting output current and output voltage through a vehicle charging port and sending the detected output current and output voltage to the processor;
the processor is used for marking the rated charging voltage, the rated charging current, the actual charging voltage and the actual charging current; respectively marked as Ue, Ie, Us, Is;
the processor compares Us and Is with Ue and Ie in real time, and when an overcurrent or short circuit phenomenon occurs, namely Us Is larger than Ue or Is larger than Ie and meets the condition that one Is satisfied, the processor sends a charging abnormal signal to the power supply conversion module;
the power supply conversion module outputs a charging abnormal signal to the charging control unit; the charging control unit blocks the output of the power supply conversion module, and simultaneously sends a charging abnormal signal to the processor, and the processor disconnects the controlled charging switch and closes the charging loop.
It should be noted that the current-voltage sampling module is connected to the low-speed vehicle battery pack through a vehicle charging port and is configured to detect output current and output voltage through the vehicle charging port, when the controlled charging switch is turned off, voltage of the low-speed vehicle battery pack is sampled by the current-voltage sampling module, when the charger works, the controlled charging switch is turned on, output voltage of the charger is sampled by the current-voltage sampling module and transmits the detected output voltage to the processor, the current-voltage sampling module is connected in series to a charging main circuit at the front end of the controlled charging switch, and when the charger works, output current of the charger is sampled by the current sensor and is transmitted to the processor.
The processor controls the power conversion module through the charging control module to adjust the output voltage and current of the power conversion module; when the charger works, the sampling signals of the current and voltage sampling module are respectively sent to the processor and the charging control module, and the processor adjusts the output of the power supply conversion module according to the sampled output voltage and current.
As shown in fig. 2, a general low-speed dc charging method adopts a different method for a storage battery pack and a lithium battery pack, and charging for the lithium battery pack includes the following charging steps:
s01, in the online stage, the charger is electrified, the auxiliary power supply in the charger supplies power, the processor starts to work, the controller local area network in the charger receives the information of the low-speed vehicle battery pack of the battery management module and waits for online, and if the online is successful, the next step is carried out;
s02, handshake phase: the charger receives the information of the low-speed vehicle battery pack and analyzes the information of the low-speed vehicle battery pack, if the information analysis fails, the charging process is quitted, and the charger does not output;
s03, charging stage: the charger successfully analyzes the information of the battery pack of the low-speed vehicle, the processor unit analyzes the information into corresponding charging voltage and current demand information, the power supply conversion module is switched on to adjust output current and output voltage, the charging switch is switched on, and a charging process is started;
s04, keeping stage: the processor receives the message, analyzes the charging demand information, simultaneously monitors and outputs actual charging voltage and actual charging current in real time through the current and voltage sampling module, and judges whether the electric quantity is full or not by adjusting the output of the power supply conversion module;
s05, end stage: and the processor receives the message information that the battery management module is full of electric quantity, closes the output of the power conversion module, and disconnects the controlled charging switch, so that the charging process is finished.
The charging of the storage battery pack comprises the following charging steps:
t01, online stage: the method comprises the following steps that a charger is powered on, an auxiliary power supply in the charger supplies power, a processor starts to work, a controller local area network in the charger receives information of a low-speed vehicle battery pack of a battery management module and waits for connection, if the connection fails, an overtime waiting stage is started, and the system waits for time T and then enters a voltage detection stage;
t02, voltage detection stage, namely after the online overtime time is over, the charger processor detects the output voltage of the charger through the current and voltage sampling module, if the voltage cannot be detected, the charging process is quitted, and the charger does not output;
if the direct-current voltage is detected to exist, entering a storage battery charging stage;
the processor detects the direct-current voltage through the current and voltage sampling module and judges the voltage grade of the battery pack of the low-speed vehicle;
t03, charging phase: the charger judges the voltage of the battery pack of the low-speed vehicle by detecting the voltage of the charging connection port, and switches on the power conversion module and the controlled charging switch to start a charging process;
t04, holding stage: the processor is connected with the output of the power supply conversion module, monitors the output voltage and current information in real time through the current and voltage sampling module, adjusts the output of the power supply conversion module, and judges whether the electric quantity is full;
and T05, ending the charging process, namely, when the processor detects that the voltage of the storage battery reaches a set value, closing the output of the power supply conversion module, disconnecting the controlled charging switch and ending the charging process.
In the embodiments provided by the present invention, it should be understood that the disclosed apparatus, device and method can be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is only one logical functional division, and there may be other divisions when the actual implementation is performed; the modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the method of the embodiment.
It will also be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the claim concerned.
Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the system claims may also be implemented by one unit or means in software or hardware. The terms second, etc. are used to denote names, but not any particular order.
Finally, it should be noted that the above examples are only intended to illustrate the technical process of the present invention and not to limit the same, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical process of the present invention without departing from the spirit and scope of the technical process of the present invention.
Claims (7)
1. A general low-speed vehicle direct current charger device is used for charging general low-speed vehicles and is characterized by comprising a charger, wherein one side of the charger is provided with a vehicle charging port, the vehicle charging port is connected with a connector, and the charger comprises a power supply conversion module, a charging control module, a processor, a current and voltage sampling module, a data acquisition module and a controlled charging switch;
the other end of the connector is connected with a low-speed vehicle battery pack, and the low-speed vehicle battery pack comprises a storage battery pack or a lithium battery pack;
the battery pack of the low-speed vehicle is connected with the charger through a controller local area network; the low-speed vehicle battery pack is connected with a charger through a connector;
the current and voltage sampling module is connected with the low-speed vehicle battery pack through a vehicle charging port and is used for detecting output current and output voltage through the vehicle charging port;
the charging control module is respectively connected with the power supply conversion module and the processor, and the processor controls the power supply conversion module through the charging control module.
2. A general direct current charger system for low-speed vehicles is characterized by comprising a charger, wherein the charger comprises a power conversion module, a charging control module, a processor, a current and voltage sampling module, a data acquisition module, a battery management module, a controlled charging switch and a low-speed vehicle battery pack, and the low-speed vehicle battery pack comprises a storage battery pack or a lithium battery pack;
the data acquisition module is used for acquiring the information of the battery pack of the low-speed vehicle and sending the information of the battery pack of the low-speed vehicle to the battery management module; the battery management module generates a message according to the information of the low-speed vehicle battery pack sent by the data acquisition module and sends the message to the charger, and the charger generates response information and sends the response information to the battery management module;
the low-speed vehicle battery pack is connected with a charger through a connector to form a charging main loop, and a controlled charging switch is connected in series on the charging main loop;
the current and voltage sampling module is used for detecting output current and output voltage through the vehicle charging port and sending the detected output current and output voltage to the processor.
3. The system according to claim 2, wherein the information of the battery pack of the low-speed vehicle includes a rated charging voltage, a rated charging current and a kind of the battery pack; the response information includes an actual charging voltage and an actual charging current.
4. The system according to claim 2, wherein the current and voltage sampling module is connected to the battery pack of the low-speed vehicle through a vehicle charging port, and is configured to detect the output current and the output voltage through the vehicle charging port.
5. The system according to claim 2, wherein the charging control module is connected to the power conversion module and the processor, respectively, and the processor controls the power conversion module through the charging control module to adjust the output voltage and current of the power conversion module; when the charger works, the sampling signals of the current and voltage sampling module are respectively sent to the processor and the charging control module, and the processor adjusts the output of the power supply conversion module according to the sampled output voltage and current.
6. A charging method of a direct current charger of a general low-speed vehicle is characterized in that the charging method adopts different modes for a lithium battery pack and a storage battery pack, and the charging for the lithium battery pack comprises the following charging steps:
an online stage; the local area network of the controller in the charger receives the information of the low-speed vehicle battery pack of the battery management module and waits for connection;
a handshake phase; the charger receives the information of the battery pack of the low-speed vehicle and analyzes the information of the battery pack of the low-speed vehicle;
a charging stage; switching on a power supply conversion module to adjust output current and output voltage, switching on a charging switch, and starting a charging process;
a holding stage; the current and voltage sampling module monitors and outputs actual charging voltage and actual charging current in real time, and the output of the power supply conversion module is regulated to judge whether the electric quantity is full;
a finishing stage; and the processor receives the message information that the battery management module is full of electric quantity, closes the output of the power conversion module, and disconnects the controlled charging switch, so that the charging process is finished.
7. The charging method of the direct current charger for the general low-speed vehicle as claimed in claim 6, wherein the charging for the storage battery pack comprises the following charging steps:
an online stage; a voltage detection stage; a charging stage; a holding stage; and (5) finishing the stage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110791119.5A CN113415180A (en) | 2021-07-13 | 2021-07-13 | Universal low-speed vehicle direct-current charger device, system and implementation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110791119.5A CN113415180A (en) | 2021-07-13 | 2021-07-13 | Universal low-speed vehicle direct-current charger device, system and implementation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116278963A (en) * | 2023-04-18 | 2023-06-23 | 安徽威斯姆电子科技有限公司 | Intelligent high-frequency charger of electric forklift and charging method thereof |
| CN116653641A (en) * | 2023-05-26 | 2023-08-29 | 安徽威斯姆电子科技有限公司 | Intelligent charger and charging method for charging lithium battery of electric forklift |
-
2021
- 2021-07-13 CN CN202110791119.5A patent/CN113415180A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116278963A (en) * | 2023-04-18 | 2023-06-23 | 安徽威斯姆电子科技有限公司 | Intelligent high-frequency charger of electric forklift and charging method thereof |
| CN116653641A (en) * | 2023-05-26 | 2023-08-29 | 安徽威斯姆电子科技有限公司 | Intelligent charger and charging method for charging lithium battery of electric forklift |
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Application publication date: 20210921 |