CN115009047A - Hybrid power supply system for electric automobile - Google Patents
Hybrid power supply system for electric automobile Download PDFInfo
- Publication number
- CN115009047A CN115009047A CN202210699934.3A CN202210699934A CN115009047A CN 115009047 A CN115009047 A CN 115009047A CN 202210699934 A CN202210699934 A CN 202210699934A CN 115009047 A CN115009047 A CN 115009047A
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- Prior art keywords
- power supply
- supply system
- power
- main
- inverter
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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
- B60L50/66—Arrangements of batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- 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
- B60L53/20—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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a hybrid power supply system for electric vehicles, which comprises: the power supply system comprises a main power supply system, a supplementary power supply system, an inverter (3), a controller (4) and a motor; the main battery-switching power supply system is formed by connecting one or more battery packs (1) in series and independently supplies power to the motor; the power supply system for supplementing and exchanging is formed by connecting one or more charging banks (2) in parallel, and the voltage is increased or reduced through an inverter (3) to supply power to a motor or charge a battery pack of the main power supply system for exchanging power. The hybrid power supply system for supplementing and replacing the electricity for the electric automobile has a double electricity replacing function, the battery pack in the main electricity replacing power supply system can be replaced while the endurance mileage of the electric automobile is increased, and a vehicle-mounted standard charging interface is reserved; the power supply system adopts the lightweight charger baby which can exchange power, is provided with a special charger baby charging interface, and recharges the charger baby through the special charging interface.
Description
Technical Field
The invention belongs to the technical field of new energy automobiles, and particularly relates to a hybrid complementary power supply system for an electric automobile.
Background
With the rapid growth of the production and sale of electric vehicles, the problem of difficult charging of electric vehicles becomes more and more prominent. For the car without a special charging pile, the charging time is five to six hours, so that the car owner of the electric power car feels headache deeply. To the electric motor car that only provides the interface of slowly filling, can not utilize fast charging station to supply electric quantity, in order to accelerate the speed of charging, some car owners can realize filling soon to on-vehicle battery through the mode of installing fast the module of filling additional. However, whether the modified electric vehicle has potential safety hazards or not is still urgently solved if the vehicle-mounted battery is matched with the fast charging module additionally arranged.
In order to better solve the problems and relieve the current situation that the number of charging piles of the current public charging station is insufficient and the charging is slow, in a patent of CN106208249A 'a treasured for charging electric vehicles', a technical scheme capable of charging electric vehicles in a movable mode is provided, and the defect that fixed charging piles cannot be moved is avoided. In CN210941368U "portable emergent treasured that charges of an electric automobile" patent, provide one kind and can directly let portable emergent treasured that charges to the technical scheme of electric automobile power supply through the charging wire, the battery of this scheme is external, needs to occupy extra space, is not conform to the charging station safety configuration requirement. In CN113246786A patent "a dual-battery-powered electric vehicle capable of replacing batteries in a trunk", a power supply system formed by dual battery packs is provided, which can greatly improve the cruising ability of the electric vehicle, but in the scheme, mainly, a charging or replacing mode is adopted, and two batteries cannot supplement charging for the other side.
Disclosure of Invention
The invention aims to solve the technical problem of providing a hybrid complementary power supply system for an electric automobile.
The technical scheme for realizing the purpose of the invention is as follows: the system comprises a main power supply system, a supplementary power supply system, an inverter, a controller and a motor; the main battery-switching power supply system is formed by connecting one or more battery packs in series and independently supplies power to the motor; the power supply system for supplementing and exchanging is formed by connecting one or more charging banks in parallel, and the voltage is boosted or reduced through an inverter to supply power to a motor or charge a battery pack of the main power supply system for exchanging power.
Further, the power supplementing and converting power supply system performs voltage boosting or voltage reducing output through an inverter, and the output voltage range of the inverter is consistent with the voltage of the main power converting power supply system at 20-100% SOC electric quantity.
Preferably, the output voltage range of the inverter is the voltage of the main battery power supply system when the electric quantity is 50-90% SOC.
And the voltage and the output power of the main battery-switching power supply system are matched with the whole vehicle motor.
The battery pack of the main battery replacement power supply system can replace the battery and is provided with a vehicle-mounted standard charging interface, so that the electric quantity can be supplemented by a vehicle-mounted charger and also can be supplemented by a battery replacement mode.
Preferably, the charger baby can be charged and replaced, a special charging interface is arranged on the whole vehicle, the charger baby can be charged through the special charging interface, and the electric quantity can be supplemented in a battery replacement mode.
The working principle of the invention is as follows: the main power supply system and the supplementary power supply system supply power to the motor independently or jointly through the controller to open/close the relay connected with the main power supply system, the supplementary power supply system and the inverter; or the power supplementing and exchanging power supply system supplements and charges the main power exchanging power supply system through the inverter; when the battery pack in the main battery-replacing power supply system or the charging bank of the power-supplementing and switching power supply system is in power shortage, the charging bank in the power-supplementing and switching power supply system can be supplemented with electricity through the special charging interface, and the battery pack in the main battery-replacing and switching power supply system can be supplemented with electricity through the vehicle-mounted charger; the battery pack or the charger baby can be detached from the vehicle, the fully charged battery pack and the charger baby are replaced on the vehicle, the whole vehicle is fully charged and revived, and the detached battery pack or the charger baby is recharged through the external charging equipment.
The invention has the beneficial effects that:
(1) the hybrid battery replacement power supply system for the electric automobile has a double battery replacement function, the battery pack in the main battery replacement power supply system can be detached and reserved with a standard charging port while the endurance of the electric automobile is increased, the electric quantity can be supplemented through a vehicle-mounted charger, and the energy of the whole automobile can be rapidly supplemented through a battery replacement mode.
(2) The power supplementing and exchanging power supply system adopts a plurality of light-weight charging banks which are connected in parallel (through an inverter) to supply power to the motor or a battery pack in the main power exchanging power supply system, so that the operations of supplementing and charging, transporting and quickly replacing are facilitated, and the electric quantity is supplemented for the whole vehicle at any time; the charger baby in the power supply system can be supplemented with electricity through the special charging interface.
(3) The inverter collects voltage in real time according to the main battery-switching power supply system, the output voltage is higher than the voltage of the main battery-switching power supply system by 2-15V, and the charger can be discharged for use preferentially.
Drawings
FIG. 1 is an electrical schematic of the present invention;
in the figure: 1-a battery pack; 2-charger baby; 3-an inverter; 4-a controller; 5-vehicle standard charging interface; 6-special charging interface.
Detailed Description
Example 1
A hybrid power supply system for an electric vehicle, comprising: the system comprises a main power supply system, a supplementary power supply system, an inverter 3, a controller 4 and a motor; the main battery-switching power supply system is connected with the motor through the controller 4 and can independently supply power to the motor; the power supply system for supplementing and replacing the power is provided with an inverter 3 which can boost or step down the voltage for output, and the inverter is respectively connected to the motor and the main power supply system for replacing the power through a controller 4 to supply power to the motor or charge the main power supply system for replacing the power.
The voltage and the output power of the main battery-switching power supply system are matched with a whole vehicle motor; the main battery-switching power supply system is formed by connecting a plurality of battery packs 1 in series.
The battery pack 1 of the main battery replacement power supply system is provided with a vehicle-mounted standard charging interface 5, and the electric quantity can be supplemented through a vehicle-mounted charger or a battery replacement mode.
The power supply system is composed of a plurality of power banks 2 which are connected in parallel.
The charger baby 2 is provided with a special charging interface 6 on the whole vehicle, the charger baby 2 can be charged through the special charging interface 6, and the electric quantity can be supplemented through a battery replacement mode.
When the main power supply system and the power supply system are both in a full charge state (100% SOC), the relay of the main power supply system is disconnected through the controller 4, the power supply system supplies power to the inverter 3, and the inverter outputs voltage and current required by the running of the motor independently.
When the power supply system for recharging and replacing discharges electricity (0% SOC), the charger can be recharged through the special charging interface 6, and the charger 2 can be recharged through an external charger after being taken out of the whole vehicle.
Example 2
A hybrid power supply system for an electric vehicle, comprising: the system comprises a main power supply system, a supplementary power supply system, an inverter 3, a controller 4 and a motor; the main battery-switching power supply system is connected with the motor through the controller 4 and can independently supply power to the motor; the power supply system for supplementing and replacing the power is provided with an inverter 3 which can boost or step down the voltage for output, and the inverter is respectively connected to the motor and the main power supply system for replacing the power through a controller 4 to supply power to the motor or charge the main power supply system for replacing the power.
The voltage and the output power of the main battery-switching power supply system are matched with a whole vehicle motor; the main battery-switching power supply system is composed of a battery pack 1.
The battery pack 1 of the main battery replacement power supply system is provided with a vehicle-mounted standard charging interface 5, and the electric quantity can be supplemented through a vehicle-mounted charger or a battery replacement mode.
The power supply system is composed of a plurality of power banks 2 which are connected in parallel.
The charger baby 2 is provided with a special charging interface 6 on the whole vehicle, and can be charged through the special charging interface 6 and also can supplement electric quantity through a battery replacement mode.
When the main power supply system and the power supply system are both in a full charge state (100% SOC), the controller disconnects the relay of the power supply system, and the main power supply system alone outputs the voltage and current required by the motor operation.
When the main battery replacement power supply system is discharged (0% SOC), the vehicle-mounted charger can be used for charging; or after a battery pack in the main battery replacement power supply is taken out of the whole vehicle, the battery pack is recharged through an external charger; the inverter 3 can be supplied with power through the power supply system, and the battery pack of the main power supply system is charged by the inverter.
Example 3
A hybrid power supply system for an electric vehicle, comprising: the system comprises a main power supply system, a supplementary power supply system, an inverter 3, a controller 4 and a motor; the main battery-switching power supply system is connected with the motor through the controller 4 and can independently supply power to the motor; the power supply system for supplementing and replacing the power is provided with an inverter 3 which can boost or step down the voltage for output, and the inverter is respectively connected to the motor and the main power supply system for replacing the power through a controller 4 to supply power to the motor or charge the main power supply system for replacing the power.
The voltage and the output power of the main battery-switching power supply system are matched with a whole vehicle motor; the main battery-switching power supply system is formed by connecting a plurality of battery packs 1 in series.
The battery pack 1 of the main battery replacement power supply system is provided with a vehicle-mounted standard charging interface 5, and the electric quantity can be supplemented through a vehicle-mounted charger or a battery replacement mode.
The power supply system is composed of a plurality of power banks 2 which are connected in parallel.
The charger 2 is provided with a special charging interface 6 on the whole vehicle, can be charged through the special charging interface 6, and can also supplement electric quantity through a battery replacement mode.
When the main power conversion power supply system and the power supplement and conversion power supply system are in a full charge state (100% SOC), the controller 4 is used for closing the relays connected with the main power conversion power supply system, the power supplement and conversion power supply system and the inverter 3 at the same time, and the main power conversion power supply system and the power supplement and conversion power supply system (through the inverter) jointly supply power to the whole vehicle motor. The output voltage of the inverter 3 is 2-15V higher than that of the main power conversion power supply system, so that the supplementary power conversion power supply system is preferentially discharged through the inverter 3. By optimally setting the lowest input/output voltage of the inverter 3, when the power bank 2 is discharged (0% SOC), the main battery power supply system still has more than 20% of electric quantity. After the discharge of the power supply system for supplementing and exchanging electricity is finished (0% SOC), the main power supply system for exchanging electricity can still independently provide required voltage and current for the operation of the motor.
When the power supply system for recharging and replacing discharges electricity (0% SOC), recharging can be carried out through the special charging interface 6, and after the charger 2 is taken out of the whole vehicle, recharging can be carried out through the external charger. The main power supply can be recharged by the vehicle-mounted charger, and the rechargeable battery pack 1 in the main power supply can be recharged by the external charger after being taken out from the whole vehicle.
Example 4
A hybrid power supply system for an electric vehicle, comprising: the system comprises a main power supply system, a supplementary power supply system, an inverter 3, a controller 4 and a motor; the main battery-switching power supply system is connected with the motor through the controller 4 and can independently supply power to the motor; the power supply system for supplementing and replacing the power is provided with an inverter 3 which can boost or step down the voltage for output, and the inverter is respectively connected to the motor and the main power supply system for replacing the power through a controller 4 to supply power to the motor or charge the main power supply system for replacing the power.
The preferable output voltage range of the inverter 3 is the voltage when the electric quantity of the main battery power supply system is 50-90% SOC.
The voltage and the output power of the main battery-switching power supply system are matched with a whole vehicle motor; the main battery-switching power supply system is formed by connecting one or more battery packs 1 in series.
The battery pack 1 of the main battery replacement power supply system is provided with a vehicle-mounted standard charging interface, so that the electric quantity can be supplemented through a vehicle-mounted charger, and the electric quantity can also be supplemented through a battery replacement mode.
The power supply system consists of one or more power banks 2 connected in parallel.
The charger 2 is provided with a special charging interface 6 on the whole vehicle, can be charged through the special charging interface 6, and can also supplement electric quantity through a battery replacement mode.
When the electric quantity of the main power supply system is less than or equal to 90% of SOC, the electric quantity of the power supplementing and exchanging system is greater than or equal to 10% of SOC, and the whole vehicle stops running, the power supplementing and exchanging system supplements and charges the main power supply system through the inverter until the main power supply system is fully charged (100% of SOC), and then the controller disconnects the relay connected with the main power supply system, the power supplementing and exchanging system and the inverter.
Claims (6)
1. A hybrid power supply system for electric vehicles, comprising: the power supply system comprises a main power supply system, a supplementary power supply system, an inverter (3), a controller (4) and a motor; the main battery-switching power supply system is formed by connecting one or more battery packs (1) in series and independently supplies power to the motor; the power supply system for supplementing and exchanging is formed by connecting one or more charging banks (2) in parallel, and the voltage is increased or reduced through an inverter (3) to supply power to a motor or charge a battery pack of the main power supply system for exchanging power.
2. The hybrid power supply system for electric vehicles as claimed in claim 1, wherein the power supply system is boosted or reduced in voltage by an inverter (3), and the output voltage range of the inverter (3) is consistent with the voltage of the main power supply system at 20-100% SOC.
3. The hybrid supplementary power supply system for the electric vehicle as claimed in claim 2, wherein the output voltage range of the inverter (3) is a voltage when the electric quantity of the main power supply system is 50-90% SOC.
4. The hybrid complementary power supply system for the electric automobile as claimed in claim 1, wherein the voltage and output power of the main power supply system are matched with those of the whole automobile motor.
5. The hybrid recharging and replacing power supply system for the electric automobile as claimed in claim 1 or 4, wherein the battery pack (1) of the main replacing power supply system can replace power and is provided with a vehicle-mounted standard charging interface (5), and the power can be supplemented through a vehicle-mounted charger or by a battery replacing mode.
6. The hybrid power supply system for recharging and exchanging of the electric vehicle as claimed in claim 1, wherein the charger (2) can be used for exchanging power, a dedicated charging interface (6) is arranged on the whole vehicle, and the vehicle can be charged through the dedicated charging interface (6) and can also be used for replenishing power in a power exchange mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210699934.3A CN115009047A (en) | 2022-06-20 | 2022-06-20 | Hybrid power supply system for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210699934.3A CN115009047A (en) | 2022-06-20 | 2022-06-20 | Hybrid power supply system for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115009047A true CN115009047A (en) | 2022-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210699934.3A Pending CN115009047A (en) | 2022-06-20 | 2022-06-20 | Hybrid power supply system for electric automobile |
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| Country | Link |
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| CN (1) | CN115009047A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116872792A (en) * | 2023-08-22 | 2023-10-13 | 杭州鸿途智慧能源技术有限公司 | Hybrid power control system based on quick replacement energy supplementing power battery |
-
2022
- 2022-06-20 CN CN202210699934.3A patent/CN115009047A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116872792A (en) * | 2023-08-22 | 2023-10-13 | 杭州鸿途智慧能源技术有限公司 | Hybrid power control system based on quick replacement energy supplementing power battery |
| CN116872792B (en) * | 2023-08-22 | 2024-04-02 | 杭州鸿途智慧能源技术有限公司 | Hybrid power control system based on quick replacement energy supplementing power battery |
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