CN112440781A - Vehicle-mounted charger, power supply system and engineering machinery - Google Patents
Vehicle-mounted charger, power supply system and engineering machinery Download PDFInfo
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- CN112440781A CN112440781A CN202011314715.6A CN202011314715A CN112440781A CN 112440781 A CN112440781 A CN 112440781A CN 202011314715 A CN202011314715 A CN 202011314715A CN 112440781 A CN112440781 A CN 112440781A
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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
- B60L53/20—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 characterised by converters located in the vehicle
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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
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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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
- B60L53/66—Data transfer between charging stations and 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
- B60L2200/00—Type of vehicles
- B60L2200/40—Working 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
- B60L2250/00—Driver interactions
- B60L2250/10—Driver interactions by alarm
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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
- B60L2250/00—Driver interactions
- B60L2250/16—Driver interactions by display
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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
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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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- 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
- Y02T90/16—Information or communication technologies improving the operation of 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 embodiment of the invention provides a vehicle-mounted charger, a power supply system and engineering machinery, and belongs to the field of power supply systems. The vehicle-mounted charger comprises: a control module and a power module; the control module is used for responding to the charging starting signal, and acquiring a charging power parameter value of the power battery system and a power supply setting power parameter value of the man-machine interaction unit; calculating a second input power parameter value which is used by the vehicle-mounted charger and meets the temperature allowance of the vehicle-mounted charger body; converting the charging power parameter value of the power battery system into a first input power parameter value of a vehicle-mounted charging device; and taking the minimum value of the power set power parameter value, the first input power parameter value and the second input power parameter value as an upper limit value of input power, and controlling the input power of a power module in the vehicle-mounted charger. The invention controls the input current of the charger and limits the power of the output alternating current charging power supply within a safe range.
Description
Technical Field
The invention relates to the field of power supply systems, in particular to a vehicle-mounted charger, a power supply system and engineering machinery.
Background
At present, engineering machinery (such as cranes, pump trucks and excavators) work in a flowing mode, the output power of alternating current power supplies provided by all operation sites cannot be unified, and communication between an alternating current charging pile meeting national standard requirements and a charger is rarely carried out to limit the charging power. In order to increase the charging speed, the vehicle-mounted charger on the engineering machinery is judged to charge the vehicle according to the charging requirement of the battery system of the engineering machinery and the condition of the vehicle-mounted charger, wherein the maximum input current I2 allowed by the vehicle-mounted charger can be reached. When the output rated current I1 of the field alternating current power supply is smaller than the allowable current I2 of the vehicle-mounted charger, the field alternating current power supply is easy to overload, so that the power supply is frequently tripped or even damaged, and finally the vehicle-mounted charger stops working and power utilization accidents are caused.
Disclosure of Invention
The embodiment of the invention aims to provide a vehicle-mounted charger, a power supply system and engineering machinery, and solves the overload problem that the output power of the vehicle-mounted charger exceeds the power supply of an operation site.
In order to achieve the above object, an embodiment of the present invention provides a vehicle-mounted charger, where the vehicle-mounted charger includes: a control module and a power module;
the control module is used for responding to a charging starting signal, acquiring a charging power parameter value of a power battery system, converting the charging power parameter value into a first input power parameter value of the vehicle-mounted charger, and acquiring a power supply setting power parameter value;
calculating a second input power parameter value which is used by the vehicle-mounted charger and meets the temperature allowance of the vehicle-mounted charger body;
and controlling the input power of the power module by taking the minimum value of the power supply setting power parameter value, the first input power parameter value and the second input power parameter value as an upper limit value of the input power.
Optionally, the charging power parameter value, the power supply setting power parameter value, the first input power parameter value, and the second input power parameter value each include one or more of the following: current values, voltage values and power values.
The present invention also provides a power supply system, including: the system comprises a vehicle-mounted charger, a man-machine interaction unit and a power battery system; the vehicle-mounted charger is connected with the human-computer interaction unit and the power battery system;
the power battery system is used for responding to a charging starting signal and sending a charging power parameter value of the power battery system;
the human-computer interaction unit is used for sending a power set power parameter value;
the vehicle-mounted charger comprises a control module and a power module; the control module is used for responding to a charging starting signal, acquiring a charging power parameter value of a power battery system, converting the charging power parameter value into a first input power parameter value of the vehicle-mounted charger, and acquiring a power supply setting power parameter value; calculating a second input power parameter value required by the vehicle-mounted charging device for the operating system; and controlling the input power of the power module by taking the minimum value of the power supply setting power parameter value, the first input power parameter value and the second input power parameter value as an upper limit value of the input power.
Optionally, the control module is further configured to send an activation signal to the human-computer interaction unit in response to the charging start signal;
and the human-computer interaction unit is used for responding to the activation signal, acquiring the power supply setting power parameter value through an input interface displaying the power supply setting power parameter value, and then sending the power supply setting power parameter value.
Optionally, the human-computer interaction unit is further configured to set the power supply setting power parameter value as a default value in response to a charging stop signal.
Optionally, the control module is further configured to send an alarm signal when it is determined that the set power parameter value of the power supply is not obtained within a preset time.
Optionally, the vehicle-mounted charger is in communication connection with the human-computer interaction unit, and the human-computer interaction unit is used for displaying charging information of the vehicle-mounted charger.
Optionally, the control module is configured to determine that the set power parameter value of the power supply is not obtained under the condition that communication failure information between the human-computer interaction unit and the control module is received, and send an alarm signal.
Optionally, the charging power parameter value, the power supply setting power parameter value, the first input power parameter value, and the second input power parameter value each include one or more of the following: current values, voltage values and power values.
The invention further provides engineering machinery which comprises the power supply system.
According to the technical scheme, the set power parameter value allowed to be output by the field alternating-current power supply, the first input power parameter value corresponding to the charging power parameter value and the second input power parameter value required by the operating system pass through the minimum value of the three values to serve as the limit value of the vehicle-mounted charger, so that the input current of the charger is controlled, and the power of the output alternating-current charging power supply is limited within a safe range. Thereby also improving the time for continuous operation.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a schematic diagram of a power supply system according to the present invention connected to an AC power source;
fig. 2 is a schematic diagram of a control logic of a power supply system provided by the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is also noted that, unless explicitly stated or limited otherwise, the term "connected" as used herein is intended to mean an electrical power connection or a signal connection between two components; "coupled" may be a direct connection between two elements, an indirect connection between two elements through an intermediary (e.g., a wire), or an indirect connection between three elements.
"signal connection" as used herein is intended to mean a signal connection between two components, such as a control signal and a feedback signal; the term "electrical connection" is used to describe an electrical power connection between two components; "connected" may be a direct connection between two elements or an indirect connection through a third element.
Example 1
This embodiment provides a vehicle-mounted machine that charges, vehicle-mounted machine that charges includes: a control module and a power module;
the control module is used for responding to the charging starting signal and acquiring a charging power parameter value and a power supply setting power parameter value of the power battery system;
calculating a second input power parameter value which is used for meeting the temperature allowance of the vehicle-mounted charger body by the vehicle-mounted charging device; converting the charging power parameter value of the power battery system into a first input power parameter value of a vehicle-mounted charging device;
and taking the minimum value of the power set power parameter value, the first input power parameter value and the second input power parameter value as an upper limit value of input power, and controlling the input power of a power module in the vehicle-mounted charger.
Optionally, the power parameter value includes one or more of a current value, a voltage value and a power value. The present embodiment preferably selects the power parameter value as the current value. After the vehicle-mounted charger of the current vehicle is started, logic judgment is carried out according to the allowable charging current value of the power battery system and the allowable working current of the vehicle-mounted charger, and the actual input current Ia of the charger is determined. However, in the actual use process, because the alternating current power supplies provided by each site have different power, if the site power supply allows the continuous output maximum current not less than the actual input current Ia of the charger, the equipment can work safely; if the maximum current allowed by the field power supply to be continuously output is smaller than the actual input current Ia of the charger, the field power supply can be overloaded and can be tripped or even burnt. And sending the maximum allowable continuous output current value I3 of the field power supply to a charger to participate in the working current control of the charger, so as to avoid the tripping or damage of the field temporary power supply.
Example 2
The present invention also provides a power supply system, as shown in fig. 1, the power supply system including: the system comprises a vehicle-mounted charger, a man-machine interaction unit and a power battery system; the vehicle-mounted charger is connected with the human-computer interaction unit and the power battery system; the vehicle-mounted charger can select alternating current-direct current conversion equipment, can convert an external alternating current power supply into a direct current power supply to supply power to the vehicle, and controls the power supply to convert power according to an external signal; the charging power control system comprises a battery pack and a control unit, wherein a charging power parameter value can be calculated according to conditions such as battery SOC (state of charge), battery core temperature and the like; the man-machine interaction unit can be an in-vehicle control unit integrating functions, such as an instrument of a chassis cab, and the like, or a man-machine interaction controller independently set for the innovative function;
the power battery system is used for responding to a charging starting signal and sending a charging power parameter value of the power battery system; the human-computer interaction unit is used for sending a power set power parameter value;
the vehicle-mounted charger comprises a control module and a power module; the control module is used for responding to a charging starting signal and acquiring a charging power parameter value and a power supply setting power parameter value of the power battery system; calculating a second input power parameter value required by the vehicle-mounted charging device for the operating system; converting the charging power parameter value of the power battery system into a first input power parameter value of a vehicle-mounted charging device; and controlling the input power of the power module by taking the minimum value among the power supply setting power parameter value, the first input power parameter value and the second input power parameter value as an upper limit value of the input power. Optionally, the control module is further configured to send an activation signal to the human-computer interaction unit in response to a charging start signal;
and the man-machine interaction unit is used for acquiring the power supply setting power parameter value through an input interface displaying the power supply setting power parameter value after receiving the activation signal, and then sending the power supply setting power parameter value. The setting mode of the input interface for setting the power parameter value by the power supply can be a mode of selecting a fixed option, and can also be a mode of digital input.
Optionally, the human-computer interaction unit is further configured to, in response to a charging stop signal (when a charging gun connected to the charging unit is disconnected or a charging stop instruction is input by the charger, send a charging stop signal), restore the current set value of the human-computer interaction unit to a default value, where the default value is 0, so as to prepare for charging the power supply next time. The default value is set, the value is set after the output current of the alternating current power supply needs to be determined during each charging, and the alternating current power supply is prevented from being damaged due to overlarge input current when the charging is started.
Optionally, the control module is further configured to send an alarm signal when it is determined that the set power parameter value of the power supply is not obtained within a preset time. The preset time can be communication delay time, so that the judgment accuracy is improved. Optionally, the control module is further configured to send an alarm signal when determining that the set power parameter value of the power supply is not obtained by obtaining communication fault information between the human-computer interaction unit and the control module. When the vehicle-mounted charger cannot receive the human-computer interaction detection information due to reasons such as signal line faults and the like, the vehicle-mounted charger stops working and sends corresponding alarm information, so that the field safety is ensured, and a user can be reminded of removing the faults in time.
Optionally, the vehicle-mounted charger is in communication connection with the human-computer interaction unit, such as a CAN bus or a 4G communication connection; the human-computer interaction unit is used for displaying charging information of the vehicle-mounted charger.
Optionally, the power parameter value includes one or more of current, voltage and power. This embodiment is preferably current. In the control process of the power supply system, as shown in fig. 2, after the charging process is started, the whole vehicle wakes up the charging function of the power battery system and the vehicle-mounted charger; after the charging function of the power battery is awakened, the power battery system sends a battery allowable charging current value I1 to a vehicle-mounted charger; after the charging function of the vehicle-mounted charger is awakened, the vehicle-mounted charger calculates the allowable input current value I2 of the charger body according to the working condition of the vehicle-mounted charger; after the charging function of the vehicle-mounted charger is awakened, the vehicle-mounted charger sends an activation signal to the man-machine control unit, the man-machine control unit automatically displays a charging current setting interface, and at the moment, an operator can set a current limit value I3 on the man-machine interaction interface according to a field alternating current power supply and send a current value I3 to the vehicle-mounted charger; after the vehicle-mounted charger receives a battery system allowable charging current value I1 sent by a power battery, calculating a corresponding input current value I11 of the vehicle-mounted charger through power and efficiency conversion by the I1; the vehicle-mounted charger compares I11, I2 and I3, takes the minimum value Imin as the limit value of the alternating current input current of the vehicle-mounted charger, and controls the input current of the vehicle-mounted charger according to the minimum value, thereby achieving the aim of avoiding the overload output of the alternating current power supply. In the charging process, the man-machine interaction interface can display the output current of the vehicle-mounted charger and the input current of the power battery system. In the embodiment, the man-machine interaction unit is additionally arranged at the finished automobile end, the limit value of the working alternating current input current of the vehicle-mounted charger is used as the maximum current value allowed to be continuously output by the field power supply and is sent to the charger to participate in the working current control of the charger, and the tripping or damage of the field temporary power supply is avoided.
The invention also provides engineering machinery which comprises the power supply system, wherein common charging modes of the engineering machinery such as a crane comprise charging of a charging pile and direct charging of the charging machine, and under the condition that the charging of the charging pile is not available, a method of conversion of a vehicle-mounted charging machine can be adopted to convert a common alternating current power supply into a direct current power supply meeting requirements and supply power to a power battery or vehicle-mounted direct current power equipment. Generally, after receiving a charging instruction sent by a power battery system, a vehicle-mounted charger outputs maximum power under a condition allowed by the vehicle-mounted charger. Through the control process, the field alternating current power supply is prevented from tripping frequently, and the continuous operation time of the engineering machinery is ensured.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (10)
1. A vehicle-mounted charger is characterized by comprising a control module and a power module;
the control module is used for responding to a charging starting signal, acquiring a charging power parameter value of a power battery system, converting the charging power parameter value into a first input power parameter value of the vehicle-mounted charger, and acquiring a power supply setting power parameter value;
calculating a second input power parameter value which is used by the vehicle-mounted charger and meets the temperature allowance of the vehicle-mounted charger body;
and controlling the input power of the power module by taking the minimum value of the power supply setting power parameter value, the first input power parameter value and the second input power parameter value as an upper limit value of the input power.
2. The vehicle-mounted charger according to claim 1, wherein the charging power parameter value, the power source setting power parameter value, the first input power parameter value, the second input power parameter value each include one or more of: current values, voltage values and power values.
3. A power supply system, comprising: the system comprises a vehicle-mounted charger, a man-machine interaction unit and a power battery system; the vehicle-mounted charger is connected with the human-computer interaction unit and the power battery system;
the power battery system is used for responding to a charging starting signal and sending a charging power parameter value of the power battery system;
the human-computer interaction unit is used for sending a power set power parameter value;
the vehicle-mounted charger comprises a control module and a power module; the control module is used for responding to a charging starting signal, acquiring a charging power parameter value of a power battery system, converting the charging power parameter value into a first input power parameter value of the vehicle-mounted charger, and acquiring a power supply setting power parameter value; calculating a second input power parameter value required by the vehicle-mounted charging device for the operating system; and controlling the input power of the power module by taking the minimum value of the power supply setting power parameter value, the first input power parameter value and the second input power parameter value as an upper limit value of the input power.
4. The power supply system according to claim 3,
the control module is also used for responding to the charging starting signal and sending an activation signal to the human-computer interaction unit;
and the human-computer interaction unit is used for responding to the activation signal, acquiring the power supply setting power parameter value through an input interface displaying the power supply setting power parameter value, and sending the power supply setting power parameter value.
5. The power supply system according to claim 4,
the human-computer interaction unit is also used for responding to a charging stopping signal and setting the power supply setting power parameter value as a default value.
6. The power supply system according to claim 3,
the control module is also used for sending out an alarm signal when the power supply set power parameter value is not obtained within the preset time.
7. The power supply system according to claim 3, wherein the vehicle-mounted charger is in communication connection with the human-computer interaction unit, and the human-computer interaction unit is used for displaying charging information of the vehicle-mounted charger.
8. The power supply system according to claim 6,
the control module is used for determining that the set power parameter value of the power supply is not obtained under the condition of receiving communication fault information between the man-machine interaction unit and the control module, and sending an alarm signal.
9. The power supply system of any of claims 3-8, wherein the charging power parameter value, the power supply setting power parameter value, the first input power parameter value, the second input power parameter value each comprise one or more of: current values, voltage values and power values.
10. A working machine, characterized in that it comprises a power supply system according to any one of claims 3-9.
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| CN202011314715.6A CN112440781A (en) | 2020-11-21 | 2020-11-21 | Vehicle-mounted charger, power supply system and engineering machinery |
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| CN202011314715.6A CN112440781A (en) | 2020-11-21 | 2020-11-21 | Vehicle-mounted charger, power supply system and engineering machinery |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951025A (en) * | 2012-11-22 | 2013-03-06 | 东南（福建）汽车工业有限公司 | Automatic defense device for electric vehicle |
| CN104340146A (en) * | 2014-10-14 | 2015-02-11 | 惠州市亿能电子有限公司 | Backup power supply system for rail transit |
| CN108501751A (en) * | 2018-04-09 | 2018-09-07 | 江西优特汽车技术有限公司 | A kind of power battery charging management method and system |
| CN109910684A (en) * | 2019-03-12 | 2019-06-21 | 中国第一汽车股份有限公司 | A kind of power battery heating system of electric vehicle and control method |
| CN111559271A (en) * | 2020-06-08 | 2020-08-21 | 四川爱创科技有限公司 | Battery replacing cabinet system |
-
2020
- 2020-11-21 CN CN202011314715.6A patent/CN112440781A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951025A (en) * | 2012-11-22 | 2013-03-06 | 东南（福建）汽车工业有限公司 | Automatic defense device for electric vehicle |
| CN104340146A (en) * | 2014-10-14 | 2015-02-11 | 惠州市亿能电子有限公司 | Backup power supply system for rail transit |
| CN108501751A (en) * | 2018-04-09 | 2018-09-07 | 江西优特汽车技术有限公司 | A kind of power battery charging management method and system |
| CN109910684A (en) * | 2019-03-12 | 2019-06-21 | 中国第一汽车股份有限公司 | A kind of power battery heating system of electric vehicle and control method |
| CN111559271A (en) * | 2020-06-08 | 2020-08-21 | 四川爱创科技有限公司 | Battery replacing cabinet system |
Non-Patent Citations (1)
| Title |
|---|
| 陈科宏: "《集成电路设计中的电源管理技术》", 30 April 2020 * |
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