CN117021979A - Mobile charging system and control method thereof - Google Patents
Mobile charging system and control method thereof Download PDFInfo
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- CN117021979A CN117021979A CN202310838273.2A CN202310838273A CN117021979A CN 117021979 A CN117021979 A CN 117021979A CN 202310838273 A CN202310838273 A CN 202310838273A CN 117021979 A CN117021979 A CN 117021979A
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- generator
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- 230000001360 synchronised effect Effects 0.000 claims description 24
- 230000006854 communication Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000002618 waking effect Effects 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
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- 230000007175 bidirectional communication Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
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- 238000007599 discharging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
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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
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid 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
- 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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a mobile charging system and a control method thereof, and relates to the technical field of vehicle charging. The mobile charging system comprises an engine, a generator and an electric energy control unit, wherein the engine is connected with the generator, the generator is connected with the electric energy control unit, the electric energy control unit is used for being connected with a power battery, the electric energy control unit is used for controlling the power battery to provide energy for the generator so as to start the engine through the generator, and the electric energy control unit is also used for controlling the engine to charge the power battery in a power following mode through the generator according to a charging request of the power battery after the engine is started. According to the invention, when the vehicle cannot continue running due to the consumption of the electric energy stored in the power battery and the like, the engine is controlled to enter the charging mode to charge the power battery in the power following mode, so that the high-efficiency emergency charging of the fault vehicle is realized.
Description
Technical Field
The invention relates to the technical field of vehicle charging, in particular to a mobile charging system and a control method thereof.
Background
With the continuous development of new energy automobiles, especially electric automobiles, more convenience is brought to people's travel. However, during the running of the electric vehicle, there often occurs a situation in which the electric energy stored in the power battery is exhausted because the electric vehicle does not reach the charging station, and thus the electric vehicle cannot continue to run.
For this situation, the prior art generally adopts a charging vehicle to rescue and charge the faulty vehicle, however, this may affect the running of the charging vehicle itself, and the overall efficiency is limited, which is very inconvenient for the user.
Disclosure of Invention
The invention solves the problem of realizing high-efficiency emergency charging of the new energy automobile.
In order to solve the above problems, the present invention provides a mobile charging system and a control method thereof.
In a first aspect, the present invention provides a mobile charging system, including an engine, a generator, and an electric energy control unit, where the engine is connected to the generator, the generator is connected to the electric energy control unit, the electric energy control unit is used to connect to a power battery, the electric energy control unit is used to control the power battery to provide energy for the generator, so as to start the engine through the generator, and the electric energy control unit is further used to control, after the engine is started, the engine to charge the power battery in a power following mode through the generator according to a charging request of the power battery.
Optionally, the electric energy control unit comprises an inverter rectifier, a driving circuit and a control circuit, wherein the inverter rectifier is connected with the generator, the inverter rectifier is used for being connected with the power battery, and the control circuit is used for controlling the running state of the inverter rectifier through the driving circuit.
Optionally, the control circuit is specifically configured to: when the electric energy control unit controls the power battery to provide energy for the generator, the inversion rectifier is controlled to be in an inversion state, and when the electric energy control unit controls the engine to charge the power battery through the generator, the inversion rectifier is controlled to be in a rectification state.
Optionally, the control circuit is connected with the engine through a CAN bus, the control circuit is used for being connected with the power battery through the CAN bus, and the control circuit is used for generating a control instruction according to the charging request transmitted by the power battery through the CAN bus and transmitting the control instruction to the engine through the CAN bus.
Optionally, the inverter rectifier includes a power output port, the power battery includes a direct current charging port, the power output port is configured to be connected with the direct current charging port, when the power battery provides energy for the generator, the direct current charging port provides energy for the power output port, and when the engine charges the power battery through the generator, the power output port provides energy for the direct current charging port.
Optionally, the generator comprises a permanent magnet synchronous motor, the permanent magnet synchronous motor is respectively connected with the inverter rectifier and the engine, and each phase of the permanent magnet synchronous motor is respectively correspondingly connected with each bridge of the inverter rectifier.
Optionally, the generator further comprises a position sensor, wherein the position sensor is used for detecting the rotor position of the permanent magnet synchronous motor and sending the rotor position to the control circuit, and the control circuit is used for controlling the running state of the permanent magnet synchronous motor according to the rotor position.
Optionally, the mobile charging system further comprises a starting power supply, wherein the starting power supply is respectively connected with the engine and the electric energy control unit, and the starting power supply is used for waking up the engine and the power battery.
Optionally, the mobile charging system further comprises a mobile vehicle body, and the engine, the generator and the electric energy control unit are all arranged on the mobile vehicle body.
In a second aspect, the present invention provides a control method of a mobile charging system, applied to the mobile charging system, including:
after the power battery is connected and the power battery provides energy for the generator so as to start the engine through the generator, a charging request of the power battery is obtained;
carrying out communication handshake according to the charging request;
and controlling the engine to charge the power battery through the generator.
According to the mobile charging system, when the power battery of the vehicle cannot work due to the fact that the stored electric energy is about to be or is exhausted, and a charging pile is not arranged nearby, and the vehicle cannot continue to run, the power battery is connected with the electric energy control unit, and as a part of electric energy (about 10-20%) is reserved in the power battery, the power battery can be used for providing energy for the generator, and the generator is in a power state at the moment, so that the engine is started; when the engine is started, if the electric energy control unit receives a charging request of the power battery, the engine is controlled to start to reversely generate electricity so that the voltage of the system is instantly higher than the voltage of the generator, namely, the generator is converted into a power generation state from a power state, so that the charging mode is entered to charge the power battery in a power following mode, the engine and the generator work in a high-efficiency area, and high-efficiency emergency charging of a fault vehicle is realized. In addition, the mobile charging system may charge the vehicle at a fixed location.
Drawings
Fig. 1 is a schematic diagram of a mobile charging system according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a specific circuit configuration of a mobile charging system according to an embodiment of the present invention;
FIG. 3 is a second schematic diagram of a mobile charging system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an engine power curve according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
As shown in fig. 1, an embodiment of the present invention provides a mobile charging system, including an engine, a generator, and an electric energy control unit, where the engine is connected to the generator, the generator is connected to the electric energy control unit, the electric energy control unit is used to connect to a power battery, the electric energy control unit is used to control the power battery to provide energy for the generator, so as to start the engine through the generator, and the electric energy control unit is further used to control, after the engine is started, the engine to charge the power battery in a power following mode through the generator according to a charging request of the power battery.
Specifically, the mobile charging system comprises an engine, a generator and an electric energy control unit (Power Control Unit, abbreviated as PCU), wherein the engine and the generator can be connected through a pure machine, the generator and the electric energy control unit can be connected through a high-voltage three-phase bus, and the electric energy control unit and the power battery can be connected through a high-voltage direct-current bus. When the power battery cannot work due to the consumption of stored electric energy and the like and the nearby vehicle cannot continue running due to the fact that the charging pile is not arranged, the power battery is connected with the electric energy control unit, and the power battery provides energy for the generator so as to start the engine; when the electric energy control unit receives a charging request (such as a charging message) of the power battery, the engine is controlled to start to reversely generate electricity so that the voltage of the system is instantly higher than the voltage of the generator, namely the generator is converted into a power generation state from a power state, and then the power battery is charged in a charging mode; the fault vehicle can be charged in an emergency mode, and the vehicle can be charged at a fixed position.
The power generation of the fixed-point efficient engine can be designed, and a power following mode is adopted, namely, the engine can adjust the output power in real time according to the requirement of a load (a power battery), so that the engine can stably provide the required power output to meet the requirement of the load, and the power is adjusted when the load changes, so that the engine always operates in a high-efficiency area, the average operating efficiency area can reach more than 42%, the development of other functions of the engine is weakened, and the low-cost control of the engine is highlighted; in fig. 4, the abscissa represents the engine speed, the ordinate represents the engine torque, the dots distributed around the engine speed represent that the power follows the power demand and runs on the optimal power curve of the engine, and it is required to ensure that the efficient area and the optimal power curve of the engine can be fully kneaded with the efficient area and the running point of the generator, and the method can be generally implemented by analyzing the charging power required by the power battery at different multiplying powers and setting corresponding charging multiplying powers at different charging stages.
When the engine generates power through the generator, the generator can consume the power generated by the engine through the heat generated by the built-in coil of the generator, and the metal resistor is designed in the circuit to generate heat, so that the engine can be effectively managed and fail in a full power interval.
When the electric energy control unit is connected with the power battery, a plurality of pins can be arranged on the power battery and used for the functions of high-voltage positive electrode, high-voltage negative electrode, protection grounding, fast charging CanH, fast charging CanL, charging station end connection confirmation, whole vehicle end connection confirmation, BMS awakening power supply positive electrode, BMS awakening power supply negative electrode and the like.
Optionally, the electric energy control unit comprises an inverter rectifier, a driving circuit and a control circuit, wherein the inverter rectifier is connected with the generator, the inverter rectifier is used for being connected with the power battery, and the control circuit is used for controlling the running state of the inverter rectifier through the driving circuit.
Specifically, as shown in fig. 2, the electric energy control unit includes an inverter rectifier, a driving circuit and a control circuit, where the inverter rectifier is connected to the generator and the power battery, and if the generator is an ac generator, the ac generator generates ac through electromagnetic induction between the rotor and the stator, and converts the ac into dc through the inverter rectifier, and then stores the dc in the power battery (for example, a lead-acid battery and a nickel-cadmium battery), and if the generator is a dc generator, the dc generator generates ac through electromagnetic induction between the rotor and the stator, and converts the dc into ac through the inverter rectifier, and then stores the ac in the power battery (for example, a lithium battery with a part of the power converter built in).
Wherein the driving circuit may use a power transistor or an insulated gate bipolar transistor as the switching element, thereby controlling the flow of the inverter current.
The control circuit generally comprises a microcontroller or a digital signal processor, and is used for monitoring the states of an input power supply and an output load and adjusting the running state of the inverter rectifier according to the requirement; the communication control interfaces of the mobile charging system are concentrated to the control circuit, so that communication decoding is facilitated, the operation conversion speed is improved, and the influence of quick charging on the power battery is reduced.
Optionally, the control circuit is specifically configured to: when the electric energy control unit controls the power battery to provide energy for the generator, the inversion rectifier is controlled to be in an inversion state, and when the electric energy control unit controls the engine to charge the power battery through the generator, the inversion rectifier is controlled to be in a rectification state.
Specifically, when the electric energy control unit controls the power battery to provide energy for the generator, the control circuit controls the inverter rectifier to be in an inversion state to convert direct current provided by the power battery into alternating current, and when the electric energy control unit controls the engine to charge the power battery through the generator, the control circuit controls the inverter rectifier to be in a rectification state to convert the alternating current provided by the generator into direct current.
Optionally, the control circuit is connected with the engine through a CAN bus, the control circuit is used for being connected with the power battery through the CAN bus, and the control circuit is used for generating a control instruction according to the charging request transmitted by the power battery through the CAN bus and transmitting the control instruction to the engine through the CAN bus.
Specifically, as shown in fig. 2, the control circuit is connected with the engine and the power battery through a CAN bus, for example, the control circuit, the engine and the power battery are provided with CAN bus interfaces to perform communication (may be bidirectional communication), and the CAN bus transmitter and the receiver are used for performing transmission of data such as a charging request (for example, a charging message) and a control instruction, for example, the CAN receiver of the control circuit is connected with the CAN transmitter of the engine, the CAN transmitter of the control circuit is connected with the CAN receiver of the engine, and the same CAN bus communication protocol (for example, GBT27930-2015 and the like) is used for performing data transmission and interaction.
The control circuit CAN send control commands and adjustment parameters to the engine, receive state information and sensor data from the engine, send instructions, set rotating speed, read engine parameters and the like through the CAN bus, and the engine CAN also transmit data such as rotating speed, temperature, oil pressure and the like to the control circuit through the CAN bus.
The power battery generally comprises a battery management system (Battery Management System, BMS for short), wherein the BMS is responsible for monitoring parameters such as voltage, current, temperature and the like of the battery, managing and protecting the battery, and the control circuit is connected with a communication interface of the BMS to acquire state information of the battery and correspondingly control the charging process.
Optionally, the inverter rectifier includes a power output port, the power battery includes a direct current charging port, the power output port is configured to be connected with the direct current charging port, when the power battery provides energy for the generator, the direct current charging port provides energy for the power output port, and when the engine charges the power battery through the generator, the power output port provides energy for the direct current charging port.
Specifically, the inverter rectifier comprises a power output port, the power battery comprises a direct current charging port, the power output port is connected with the direct current charging port, namely, the direct current output end of the inverter rectifier is connected with the direct current input end of the power battery, the positive electrode of the inverter rectifier is connected to the positive electrode of the battery, the negative electrode of the inverter rectifier is connected to the negative electrode of the battery, when the power battery provides energy for the generator, the power battery provides energy for the power output port through the direct current charging port, and when the engine charges the power battery through the generator, the power output port provides energy for the direct current charging port.
Optionally, the generator comprises a permanent magnet synchronous motor, the permanent magnet synchronous motor is respectively connected with the inverter rectifier and the engine, and each phase of the permanent magnet synchronous motor is respectively correspondingly connected with each bridge of the inverter rectifier.
Specifically, as shown in connection with fig. 2, the generator includes a permanent magnet synchronous motor, so that the average operating efficiency point can reach more than 95%, taking a three-phase permanent magnet synchronous motor as an example, the phase a of the three-phase permanent magnet synchronous motor is connected with the phase a (corresponding bridge) input of the inverter rectifier, and the phase B and the phase C are the same; the permanent magnet synchronous motor is connected with the output shaft of the engine, and a mechanical transmission device, such as a coupler, a speed reducer and the like, can be used for power transmission, so that the permanent magnet synchronous motor can be matched with the output shaft of the engine and transmit power.
Optionally, the generator further comprises a position sensor, wherein the position sensor is used for detecting the rotor position of the permanent magnet synchronous motor and sending the rotor position to the control circuit, and the control circuit is used for controlling the running state of the permanent magnet synchronous motor according to the rotor position.
Specifically, as shown in fig. 2, the generator further includes a Position Sensor (PS), and the Position Sensor detects the rotor Position of the permanent magnet synchronous motor, so as to implement accurate motor control. Common rotor position sensors include hall sensors, encoders, magnetic field sensors, etc., for measuring the angle or position of the rotor.
The generator may further comprise a current sensor for measuring the current of the motor phase for current control and fault detection. Common current sensors include hall effect sensors, current transformers, resistors, and the like.
The generator can also comprise a temperature sensor for measuring the temperature of the permanent magnet synchronous motor, so as to realize over-temperature protection and thermal management. Common temperature sensors include thermistors, thermocouples, temperature sensor chips, and the like.
The generator can also comprise a speed sensor for measuring the rotating speed or linear speed of the permanent magnet synchronous motor, so as to realize closed-loop control and speed feedback. Common speed sensors include hall sensors, photosensors, encoders, etc.
The generator may further comprise vibration sensors for monitoring vibrations and operating conditions of the permanent magnet synchronous motor, such as for detecting unbalance, bearing failure, mechanical resonance etc.
Optionally, the mobile charging system further comprises a starting power supply, wherein the starting power supply is respectively connected with the engine and the electric energy control unit, and the starting power supply is used for waking up the engine and the power battery.
Specifically, referring to fig. 3, the mobile charging system further includes a starting power source (for example, a 12V starting power source), where the starting power source is connected to the engine and the electric energy control unit, and the starting power source wakes up the generator and the power battery to perform electric pulse heating on the power battery in an extremely cold and low temperature environment, so as to solve the problem that the battery cannot be charged in the low temperature environment.
The starting power supply comprises a starter and a storage battery, the starter and the engine can be mechanically connected, and the storage battery is connected with the electric energy control unit through 12V voltage electricity.
The starting power supply can further comprise a power supply manager, a controller, a protection device and the like, wherein the power supply manager is responsible for managing and controlling the storage battery, can monitor parameters such as voltage, current and temperature of the storage battery, and adjusts the output of the storage battery according to requirements, the controller is used for controlling and monitoring the starting power supply, can receive instructions from a control circuit, controls the switching and charging and discharging processes of the starting power supply according to the instructions, and the protection device is used for protecting the starting power supply and related equipment from abnormal conditions such as overcurrent, overvoltage, short circuit and overtemperature.
Optionally, the mobile charging system further comprises a mobile vehicle body, and the engine, the generator and the electric energy control unit are all arranged on the mobile vehicle body.
Specifically, the mobile charging system further comprises a mobile vehicle body, and the engine, the generator and the electric energy control unit are arranged on the mobile vehicle body, such as a tool car and a box car (if the space of the trunk of the vehicle is enough, the trunk of the vehicle can be integrally placed in the trunk), so that the vehicle is beneficial to dragging to carry out high-efficiency emergency charging on the fault vehicle.
Another embodiment of the present invention provides a control method of a mobile charging system, which is applied to the mobile charging system, including:
and after the power battery is connected and the power battery provides energy for the generator so as to start the engine through the generator, acquiring a charging request of the power battery.
Specifically, the mobile charging system is connected with the power battery, the power battery provides energy for the generator, so that the engine is started, and after the battery management system of the power battery is activated, a charging message is sent to the electric energy control unit.
And carrying out communication handshake according to the charging request.
Specifically, the electric energy control unit performs communication handshake according to the charging request, then detects each insulation reliability, and when detecting that the power line (the thickened line shown in fig. 2) meets a preset voltage value range, the electric energy control unit sends a power requirement for driving the engine to the power battery to enable the power battery to be connected.
And controlling the engine to charge the power battery in a power following mode through the generator.
Specifically, the electric energy control unit controls the generator to start, the generator drives the engine to successfully ignite, and the engine starts to reversely generate electricity so that the system voltage is instantaneously higher than the generator voltage, and therefore the charging mode is entered.
The battery management system can control the power battery to charge in a corresponding charging mode according to the message provided by the power battery.
Although the invention is disclosed above, the scope of the invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications will fall within the scope of the invention.
Claims (10)
1. The mobile charging system is characterized by comprising an engine, a generator and an electric energy control unit, wherein the engine is connected with the generator, the generator is connected with the electric energy control unit, the electric energy control unit is used for being connected with a power battery, the electric energy control unit is used for controlling the power battery to provide energy for the generator so as to start the engine through the generator, and the electric energy control unit is further used for controlling the engine to charge the power battery in a power following mode through the generator according to a charging request of the power battery after the engine is started.
2. The mobile charging system of claim 1, wherein the power control unit comprises an inverter rectifier connected to the generator, a drive circuit, and a control circuit, the inverter rectifier being configured to be connected to the power battery, the control circuit being configured to control an operating state of the inverter rectifier via the drive circuit.
3. The mobile charging system of claim 2, wherein the control circuit is specifically configured to: when the electric energy control unit controls the power battery to provide energy for the generator, the inversion rectifier is controlled to be in an inversion state, and when the electric energy control unit controls the engine to charge the power battery through the generator, the inversion rectifier is controlled to be in a rectification state.
4. The mobile charging system of claim 2, wherein the control circuit is connected to the engine via a CAN bus, the control circuit is configured to be connected to the power battery via a CAN bus, and the control circuit is configured to generate a control command based on the charging request transmitted from the power battery via the CAN bus, and transmit the control command to the engine via the CAN bus.
5. The mobile charging system of claim 2, wherein the inverter rectifier includes a power outlet, the power battery includes a dc charging port, the power outlet is configured to be coupled to the dc charging port, the dc charging port provides energy to the power outlet when the power battery provides energy to the generator, and the power outlet provides energy to the dc charging port when the engine charges the power battery through the generator.
6. The mobile charging system of claim 2, wherein the generator comprises a permanent magnet synchronous motor, the permanent magnet synchronous motor is respectively connected with the inverter rectifier and the engine, and each phase of the permanent magnet synchronous motor is respectively connected with each bridge of the inverter rectifier.
7. The mobile charging system of claim 6, wherein the generator further comprises a position sensor for detecting a rotor position of the permanent magnet synchronous motor and transmitting the rotor position to the control circuit, the control circuit for controlling an operational state of the permanent magnet synchronous motor based on the rotor position.
8. The mobile charging system of claim 1, further comprising a starting power source connected to the engine and the power control unit, respectively, the starting power source configured to wake the engine and the power battery.
9. The mobile charging system according to any one of claims 1 to 8, further comprising a mobile vehicle body, wherein the engine, the generator, and the electric power control unit are all provided on the mobile vehicle body.
10. A control method of a mobile charging system, applied to the mobile charging system according to any one of claims 1 to 9, characterized by comprising:
after the power battery is connected and the power battery provides energy for the generator so as to start the engine through the generator, a charging request of the power battery is obtained;
carrying out communication handshake according to the charging request;
and controlling the engine to charge the power battery in a power following mode through the generator.
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CN202310838273.2A CN117021979A (en) | 2023-07-07 | 2023-07-07 | Mobile charging system and control method thereof |
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CN202310838273.2A CN117021979A (en) | 2023-07-07 | 2023-07-07 | Mobile charging system and control method thereof |
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