CN111267642A - Charging method and system for electric vehicle rescue - Google Patents
Charging method and system for electric vehicle rescue Download PDFInfo
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- CN111267642A CN111267642A CN202010108399.0A CN202010108399A CN111267642A CN 111267642 A CN111267642 A CN 111267642A CN 202010108399 A CN202010108399 A CN 202010108399A CN 111267642 A CN111267642 A CN 111267642A
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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
- B60L50/62—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 charged by low-power generators primarily intended to support the batteries, e.g. range extenders
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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
- 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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- 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
- Y02T10/62—Hybrid 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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- 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)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a charging method and a charging system for electric vehicle rescue, and relates to the field of vehicles. The charging method for electric vehicle rescue comprises the steps of detecting whether a plurality of systems in a rescue vehicle are normal or not after a triggering instruction for connecting the rescue vehicle and a rescued vehicle is received, wherein the plurality of systems comprise a battery management system, a range extender and an air conditioning system, controlling the plurality of systems to be powered on at high voltage when the plurality of systems are normal, starting the range extender and enabling the range extender to be in an idle-speed non-power-generating state, controlling the rescue vehicle to enter a rescue mode and enabling the rescue vehicle to be in signal connection with the rescued vehicle, controlling the range extender to generate power to charge a first power battery of the rescued vehicle, controlling the range extender to stop generating power after a request for completing charging of the rescued vehicle is received, and ending charging and rescuing. The invention utilizes the range extender in the rescue vehicle to charge the rescued vehicle, and has short charging time and high safety.
Description
Technical Field
The invention relates to the field of vehicles, in particular to a charging method and a charging system for electric vehicle rescue.
Background
Along with the quantity of electric automobile constantly increases, the condition that the electric motor car electric quantity is too low to lead to unable going appears easily, needs the rescue this moment. The conventional rescue method has several modes:
1. trailer, the disadvantage: the trailer rescue cost is higher, needs to wait for a longer time, influences the user and experiences to the use of electric motor car.
2. Professional supply vehicle rescue is charged, the shortcoming: need the longer time from the parking area to the rescue place, influence the customer and use experience to the electric motor car, in addition, generally professional supply vehicle is reorganized about 10 tons of quality, draws several tons of heavy batteries to rescue, consumes most electric quantity on the rescue way, leads to rescue electric quantity utilization ratio low, and the energy consumption is with high costs.
3. The electric vehicle carries a high-power conversion module for charging, and has the following defects: the high-power DC/DC (converter) for partner rescue between pure electric vehicles in the current market is high in cost (generally 3-10 ten thousand yuan/station) and large in size (generally 0.2 m)3) And thus cannot be popularized.
4. The inversion charging of the small-power vehicle-mounted charger of the electric vehicle has the following defects: the power of a vehicle-mounted charger in the current market is generally 2-5 kW, the rescue time is more than 1h, and a user cannot wait.
Disclosure of Invention
The invention aims to provide a charging method for electric vehicle rescue, which solves the problem that in the prior art, the electric vehicle has low electric quantity and can not run for long rescue charging time.
The invention provides a charging system for electric vehicle rescue.
According to an object of a first aspect of the present invention, there is provided a charging method for an electric vehicle rescue, comprising:
receiving a triggering instruction for connecting a rescue vehicle and a rescued vehicle;
detecting whether a plurality of systems in the rescue vehicle are normal or not, wherein the plurality of systems comprise a battery management system, a range extender and an air conditioning system;
if the systems are normal, controlling the systems to be electrified at high voltage;
starting the range extender and enabling the range extender to be in an idle speed non-power generation state;
controlling the rescue vehicle to enter a rescue mode;
the rescue vehicle and the rescued vehicle are in signal connection;
controlling the range extender to generate power to charge a first power battery of the rescued vehicle;
receiving a request for finishing charging of the rescued vehicle;
and controlling the range extender to stop generating power, and finishing charging rescue.
Optionally, before receiving a triggering instruction for connecting the rescue vehicle and the rescued vehicle, the method further comprises:
receiving a rescue charging request sent by the rescued vehicle;
and informing the rescue vehicle closest to the rescued vehicle to perform rescue charging.
Optionally, after the range extender is started and is in an idle non-power generation state, the method further comprises the following steps:
detecting whether a plurality of systems in the rescue vehicle are normal again;
and if the systems are normal, controlling the rescue vehicle to enter a rescue mode.
Optionally, after the rescue vehicle is controlled to enter the rescue mode, the method further comprises the following steps:
and disconnecting the battery management system in the rescue vehicle from the range extender.
Optionally, the controlling the range extender to generate power to charge the first power battery of the rescued vehicle comprises:
continuously detecting whether parameters of a first power battery of the rescued vehicle are normal or not in the process of charging the first power battery, wherein the parameters comprise the temperature and the voltage of the first power battery;
if not, controlling the range extender to stop generating power.
Optionally, the controlling the range extender to generate power to charge the first power battery of the rescued vehicle further comprises:
and adjusting the output power of the range extender according to the charging power requirement of the rescued vehicle so as to charge a first power battery of the rescued vehicle.
According to the object of the second aspect of the invention, the invention also provides a charging system for electric vehicle rescue, comprising a rescue vehicle and a rescued vehicle, wherein the rescue vehicle comprises a detection unit and a control unit connected with the detection unit,
the detection unit is used for detecting whether a plurality of systems in the rescue vehicle are normal or not after receiving a trigger instruction for connecting the rescue vehicle and the rescued vehicle and feeding back the trigger instruction to the control unit, wherein the plurality of systems comprise a battery management system, a range extender and an air conditioning system;
the control unit is used for controlling the systems to be electrified at high voltage when the systems in the rescue vehicle are normal, then starting the range extender and enabling the range extender to be in an idle-speed non-power-generation state, then entering a rescue mode, controlling the range extender to generate power to charge a first power battery of the rescued vehicle after the rescue vehicle is in signal connection with the rescued vehicle, and finally controlling the range extender to stop generating power after a request of charging the rescued vehicle is received, and ending charging rescue.
Optionally, the method further comprises:
and the master control system is in signal connection with both the rescue vehicle and the rescued vehicle and is configured to inform the rescue vehicle closest to the rescued vehicle to carry out rescue charging after receiving a rescue charging request sent by the rescued vehicle.
Optionally, the detection unit is further configured to continuously detect whether parameters of the first power battery of the rescued vehicle are normal or not in the process of charging the first power battery of the rescued vehicle, and feed the parameters back to the control unit, wherein the parameters include the temperature and the voltage of the first power battery;
the control unit is also used for controlling the range extender to stop generating power when the parameter of the first power battery is abnormal in the process of charging the first power battery.
Optionally, the control unit is further configured to disconnect a battery management system in the rescue vehicle from the range extender after controlling the rescue vehicle to enter a rescue mode, and is configured to adjust the output power of the range extender according to the charging power demand of the rescued vehicle so as to charge the first power battery of the rescued vehicle.
When the multiple systems in the rescue vehicle are detected to be normal, the multiple systems are controlled to be electrified at high voltage, then the range extender is started and is in an idle-speed non-power-generation state, then the rescue vehicle is controlled to enter a rescue mode, the rescue vehicle is enabled to establish signal connection with the rescued vehicle, then the range extender is controlled to generate power to charge a first power battery of the rescued vehicle, finally the range extender is controlled to stop generating power after a request of charging the rescued vehicle is received, and charging rescue is finished. The invention utilizes the range extender in the rescue vehicle to charge the rescued vehicle, has short charging time and low cost, and the rescue vehicle detects whether the vehicle system has a fault before rescue, thereby improving the safety of rescue.
Furthermore, before the triggering instruction of the connection between the rescue vehicle and the rescued vehicle is received, the method also comprises the step of informing the rescue vehicle closest to the rescued vehicle to carry out rescue charging after the rescue charging request sent by the rescued vehicle is received, so that the rescue waiting time is reduced.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic flowchart of a charging method for electric vehicle rescue according to one embodiment of the present invention;
fig. 2 is a schematic flowchart of a charging method for electric vehicle rescue according to another embodiment of the present invention;
fig. 3 is a schematic structural view of a charging system for electric vehicle rescue according to one embodiment of the present invention;
fig. 4 is a schematic configuration diagram of a charging system for electric vehicle rescue according to another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Fig. 1 is a schematic flowchart of a charging method for electric vehicle rescue according to one embodiment of the present invention. As shown in fig. 1, in a specific embodiment, a charging method for electric vehicle rescue generally may include the steps of:
s10, receiving a trigger instruction for connecting the rescue vehicle and the rescued vehicle;
s20, detecting whether a plurality of systems in the rescue vehicle are normal or not, wherein the plurality of systems comprise a battery management system, a range extender and an air conditioning system, and if the plurality of systems are normal, carrying out S30; if not, ending;
s30, controlling a plurality of systems to be electrified at high voltage;
s40, starting the range extender and enabling the range extender to be in an idle speed non-power generation state;
s50, controlling the rescue vehicle to enter a rescue mode;
s60, establishing signal connection between the rescue vehicle and the rescued vehicle;
s70, controlling the range extender to generate power to charge the first power battery of the rescued car;
s80, receiving a request for finishing charging of the rescued vehicle;
and S90, controlling the range extender to stop generating power, and ending the charging rescue.
The invention utilizes the range extender in the rescue vehicle to charge the rescued vehicle, has short charging time and low cost, and the rescue vehicle detects whether the vehicle system has a fault before rescue, thereby improving the safety of rescue.
Fig. 2 is a schematic flowchart of a charging method for electric vehicle rescue according to another embodiment of the present invention. As shown in fig. 2, in another embodiment, before the step of S10, the method further includes:
s01, receiving a rescue charging request sent by a rescued car;
and S02, informing the nearest rescue vehicle to the rescued vehicle to perform rescue charging.
According to the invention, after the rescue charging request of the rescued car is received, the nearest rescue car is informed to perform rescue charging, so that the rescue waiting time is reduced.
Further, after the step of S40, the method further includes:
s41, detecting whether the systems in the rescue vehicle are normal again, and if not, ending the process; if all the systems are normal, S50 is performed.
According to the invention, after the high-voltage power is applied to a plurality of systems of the rescue vehicle and the range extender is started, whether the systems in the rescue vehicle are normal or not can be detected again, so that the potential safety hazard caused by the failure or fault of a certain system due to the high-voltage power is avoided, and the safety of rescue charging is further improved.
Further, after the step of S50, the method further includes:
and S51, disconnecting the battery management system in the rescue vehicle from the range extender.
The invention can disconnect the second power battery in the battery management system in the rescue vehicle from the range extender before charging the power battery of the rescued vehicle. The problem that the output power of the range extender is larger than the charging demand power of one power battery due to the fact that the charging demand power of the first power battery in the rescued car is different from the charging demand power of the second power battery in the rescued car, potential safety hazards are caused, and the safety of rescue charging is further improved.
In one embodiment, the control of the range extender to generate power to charge the first power battery of the rescued car comprises the following steps:
whether the parameters of the first power battery are normal or not is continuously detected in the process of charging the first power battery of the rescued vehicle, and the range extender is controlled to stop generating power when the parameters of the first power battery are abnormal, wherein the parameters comprise the temperature and the voltage of the first power battery.
The invention continuously detects the voltage and the temperature of the first power battery of the rescued vehicle in the charging process, and stops charging in time when abnormality occurs, thereby ensuring the safety of the rescued vehicle.
In yet another embodiment, controlling the range extender to generate power to charge the first power battery of the rescued car further comprises:
and adjusting the output power of the range extender according to the charging power requirement of the rescued vehicle so as to charge the first power battery of the rescued vehicle.
According to the invention, a DC/DC converter is not needed, so that the cost is saved, the control unit can adjust the output power of the range extender according to the charging power requirement of the rescued vehicle, the application range is wide, and the range extender can be widely used.
Fig. 3 is a schematic structural view of a charging system for electric vehicle rescue according to one embodiment of the present invention, and fig. 4 is a schematic structural view of a charging system for electric vehicle rescue according to another embodiment of the present invention. As shown in fig. 3-4, in a specific embodiment, the charging system 100 for electric vehicle rescue includes a rescue vehicle 1 and a rescued vehicle 2, the rescue vehicle 1 includes a detection unit 11 and a control unit 12 connected to the detection unit 11, wherein the detection unit 11 is configured to detect whether a plurality of systems in the rescue vehicle 1 are normal after receiving a trigger instruction for connecting the rescue vehicle 1 and the rescued vehicle 2, and feed back the detected plurality of systems to the control unit 12, wherein the plurality of systems include a battery management system 13, a range extender 15 and an air conditioning system 14. The control unit 12 is used for controlling the plurality of systems to be powered on at high voltage when the plurality of systems in the rescue vehicle 1 are normal, then starting the range extender 15 and enabling the range extender 15 to be in an idle-speed non-power-generation state, then entering a rescue mode, controlling the range extender 15 to generate power to charge the first power battery 21 of the rescued vehicle 2 after the rescue vehicle 1 is in signal connection with the rescued vehicle 2, and finally controlling the range extender 15 to stop generating power after receiving a request that the rescued vehicle 2 is charged, and ending charging rescue. The range extender 15 includes, among other things, an integrated generator and generator controller device 151 and an engine 152. Specifically, the detection unit 11 receives a trigger instruction of connecting the rescue vehicle 1 and the rescued vehicle 2, and means that the second charging module 16 in the rescue vehicle 1 is connected with the first charging module 22 in the rescued vehicle 2 through a charging wire. After the rescue vehicle 1 and the rescued vehicle 2 establish signals, the first relay 17, the second relay 23 and the third relay 24 are all closed to conduct the range extender 15 of the rescue vehicle 1 and the first power battery 21 of the rescued vehicle 2.
Compared with an electric vehicle, the stroke-increasing type rescue vehicle reduces power consumption in the driving process, is provided with a small number of batteries (generally less than 0.5 ton), and is light in overall weight, low in power consumption and low in energy consumption and cost. In addition, only one charging connecting wire is needed between the extended-range rescue vehicle and the rescued vehicle 2, so that the equipment investment cost is greatly reduced, and the rescue operation is convenient. The range extender 15 is used for charging, so that the rescue charging can be completed in less time.
In another embodiment, the charging system for electric vehicle rescue further comprises a master control system 3 in signal connection with both the rescue vehicle 1 and the rescued vehicle 2, specifically, the master control system 3 is in wireless connection with the rescue vehicle 1 and the rescued vehicle 2, and the master control system 3 is configured to notify the rescue vehicle 1 closest to the rescued vehicle 2 to perform rescue charging after receiving a rescue charging request sent by the rescued vehicle 2.
Further, the detecting unit 11 is further configured to continuously detect whether parameters of the first power battery 21 are normal during the process of charging the first power battery 21 of the rescued vehicle 2, and feed back the parameters to the control unit 12, where the parameters include the temperature and the voltage of the first power battery 21. The control unit 12 is also used to control the range extender 15 to stop power generation when a parameter of the first power battery 21 is abnormal during charging of the first power battery 21.
In addition, the control unit 12 is also used for disconnecting the battery management system 13 in the rescue vehicle 1 from the range extender 15 after controlling the rescue vehicle 1 to enter the rescue mode, and is configured to adjust the output power of the range extender 15 according to the charging power requirement of the rescued vehicle 2 so as to charge the first power battery 21 of the rescued vehicle 2. Specifically, the disconnection of the battery management system 13 in the rescue vehicle 1 from the range extender 15 is to disconnect the fourth relay 18 between the second power battery 131 in the rescue vehicle 1 and the range extender 15.
Further, the detection unit 11 is also used for detecting whether a plurality of systems in the rescue vehicle 1 are normal again after the range extender 15 is started and the range extender 15 is in the idle non-power generation state, and feeding back the detected results to the control unit 12. The control unit 12 is also configured to control the rescue vehicle 1 to enter the rescue mode when the plurality of systems are all normal.
The range extender 15 in the rescue vehicle 1 has the output voltage range of 250V to 650V, and can be used for rescuing both passenger vehicles and commercial vehicles. And the range extender 15 has an output power range of 0Kw to 60Kw, the actual charging power can be adjusted according to the requirement of the rescued car 2, and the rescue charging range is wide. In addition, the range extender 15 can be used for long-time rescue charging, the rescue vehicle 2 is fully charged with the battery or the set charging time is up, the rescue vehicle 1 stops charging, and the rescue charging is completed under the condition of high-voltage power-off. As long as the rescue vehicle 1 has fuel, the rescue can be continuously carried out without worrying about the problem of power shortage of the rescue vehicle 1.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A charging method for electric vehicle rescue is characterized by comprising the following steps:
receiving a triggering instruction for connecting a rescue vehicle and a rescued vehicle;
detecting whether a plurality of systems in the rescue vehicle are normal or not, wherein the plurality of systems comprise a battery management system, a range extender and an air conditioning system;
if the systems are normal, controlling the systems to be electrified at high voltage;
starting the range extender and enabling the range extender to be in an idle speed non-power generation state;
controlling the rescue vehicle to enter a rescue mode;
the rescue vehicle and the rescued vehicle are in signal connection;
controlling the range extender to generate power to charge a first power battery of the rescued vehicle;
receiving a request for finishing charging of the rescued vehicle;
and controlling the range extender to stop generating power, and finishing charging rescue.
2. The charging method according to claim 1, wherein before receiving a triggering instruction for connecting the rescue vehicle and the rescued vehicle, the method further comprises the following steps:
receiving a rescue charging request sent by the rescued vehicle;
and informing the rescue vehicle closest to the rescued vehicle to perform rescue charging.
3. The charging method according to claim 1, further comprising, after starting the range extender and putting the range extender in an idle non-power generating state:
detecting whether a plurality of systems in the rescue vehicle are normal again;
and if the systems are normal, controlling the rescue vehicle to enter a rescue mode.
4. The charging method according to claim 1, further comprising, after controlling the rescue vehicle to enter a rescue mode:
and disconnecting the battery management system in the rescue vehicle from the range extender.
5. The charging method according to claim 1, wherein controlling the range extender to generate power to charge the first power battery of the rescued vehicle comprises:
continuously detecting whether parameters of a first power battery of the rescued vehicle are normal or not in the process of charging the first power battery, wherein the parameters comprise the temperature and the voltage of the first power battery;
if not, controlling the range extender to stop generating power.
6. The charging method according to claim 5, wherein the range extender is controlled to generate power to charge the first power battery of the rescued vehicle, and further comprising:
and adjusting the output power of the range extender according to the charging power requirement of the rescued vehicle so as to charge a first power battery of the rescued vehicle.
7. The charging system for electric vehicle rescue is characterized by comprising a rescue vehicle and a rescued vehicle, wherein the rescue vehicle comprises a detection unit and a control unit connected with the detection unit,
the detection unit is used for detecting whether a plurality of systems in the rescue vehicle are normal or not after receiving a trigger instruction for connecting the rescue vehicle and the rescued vehicle and feeding back the trigger instruction to the control unit, wherein the plurality of systems comprise a battery management system, a range extender and an air conditioning system;
the control unit is used for controlling the systems to be electrified at high voltage when the systems in the rescue vehicle are normal, then starting the range extender and enabling the range extender to be in an idle-speed non-power-generation state, then entering a rescue mode, controlling the range extender to generate power to charge a first power battery of the rescued vehicle after the rescue vehicle is in signal connection with the rescued vehicle, and finally controlling the range extender to stop generating power after a request of charging the rescued vehicle is received, and ending charging rescue.
8. The charging system of claim 7, further comprising:
and the master control system is in signal connection with both the rescue vehicle and the rescued vehicle and is configured to inform the rescue vehicle closest to the rescued vehicle to carry out rescue charging after receiving a rescue charging request sent by the rescued vehicle.
9. The charging system according to claim 7,
the detection unit is further used for continuously detecting whether parameters of a first power battery of the rescued vehicle are normal or not in the process of charging the first power battery and feeding back the parameters to the control unit, wherein the parameters comprise the temperature and the voltage of the first power battery;
the control unit is also used for controlling the range extender to stop generating power when the parameter of the first power battery is abnormal in the process of charging the first power battery.
10. The charging system according to claim 7,
the control unit is further used for disconnecting a battery management system in the rescue vehicle from the range extender after the rescue vehicle is controlled to enter a rescue mode, and is configured to adjust the output power of the range extender according to the charging power requirement of the rescued vehicle so as to charge the first power battery of the rescued vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010108399.0A CN111267642A (en) | 2020-02-21 | 2020-02-21 | Charging method and system for electric vehicle rescue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010108399.0A CN111267642A (en) | 2020-02-21 | 2020-02-21 | Charging method and system for electric vehicle rescue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111267642A true CN111267642A (en) | 2020-06-12 |
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