CN116872792A - Hybrid power control system based on quick replacement energy supplementing power battery - Google Patents
Hybrid power control system based on quick replacement energy supplementing power battery Download PDFInfo
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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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
-
- 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
-
- 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
- B60L53/80—Exchanging energy storage elements, e.g. removable batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S5/00—Servicing, maintaining, repairing, or refitting of vehicles
- B60S5/06—Supplying batteries to, or removing batteries from, 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
Abstract
The application provides a hybrid power control system based on a quick-change energy supplementing power battery, which comprises a quick-change battery system, a hybrid power control system, a high-rate stock battery, a driving controller and a driving system, wherein the battery system is connected with the hybrid power control system; the output end of the quick-change battery system is electrically connected with the hybrid power control system, the output end of the hybrid power control system is connected with the driving controller, the output end of the high-rate stock battery is electrically connected with the driving controller, and the output end of the driving controller is connected with the driving system; the vehicle can run for a short distance by carrying a group of high-rate stock batteries, meanwhile, the vehicle is provided with the hybrid power control system and the quick-change battery system battery replacing mechanism, the vehicle can independently use the high-rate stock batteries to run for a short distance, the high-rate batteries can be charged by the charging piles to be the high-rate stock batteries for energy supplement, and the battery replacing system can rent the fully-charged quick-change batteries to the battery replacing station to realize energy supplement during normal use.
Description
Technical Field
The application relates to the technical field of new energy automobiles, in particular to a hybrid power control system based on quick replacement energy supplementing power batteries.
Background
At present, new energy technology is vigorously developed, and under the advocacy of driving electromotive and energy diversification, the technical route is pure electric, oil-electricity hybrid power and fuel cell technology as the whole vehicle energy. However, the products of the technical routes are different, and the energy-saving and environment-friendly fuel-oil hybrid electric vehicle is not the best mode in terms of energy conservation, environmental protection and use cost, although the energy-saving and environment-friendly fuel-oil hybrid electric vehicle is as convenient as a fuel-oil vehicle; the fuel cell is an ideal energy source, such as a hydrogen energy source fuel cell electric vehicle, but the complex system of a fuel cell stack and hydrogen preparation and storage become very difficult, the fuel cell is difficult to popularize in a short term, the pure electric vehicle is convenient to use in a short distance, but suffers from the defect of long energy supplementing time under the long-distance use condition, and the service life attenuation caused by calendar aging of the battery is unavoidable if the fuel cell is not used for a long time.
Aiming at the problems or defects existing in the prior art, a hybrid power control system of a new energy automobile, which is energy-saving, environment-friendly, high in universality and capable of realizing quick power conversion and energy supplement, is urgently needed.
Disclosure of Invention
In order to solve the technical problems or defects in the prior art, the application provides a hybrid power control system of an energy type battery and a multiplying power type battery, wherein the battery-battery hybrid power inherits the advantages of a pure electric vehicle, and innovatively solves the rapid energy supplementing mode after the vehicle is separated from electricity under the pure electric characteristic of the vehicle. The vehicle can be provided with a high-rate battery pack when leaving the factory, and the quick-change energy-supplementing battery is rented at the power exchange station to quickly supplement energy, so that quick-change energy supplement within 5 minutes is realized, and the high-efficiency operation of the driving motor can be kept.
In order to achieve the above purpose, the application provides a hybrid power control system based on a quick-change energy supplementing power battery, which comprises a quick-change battery system, a hybrid power control system, a high-rate stock battery, a driving controller and a driving system;
the output end of the quick-change battery system is electrically connected with the hybrid power control system, the output end of the hybrid power control system is connected with the driving controller, the output end of the high-rate stock battery is electrically connected with the driving controller, and the output end of the driving controller is connected with the driving system;
the quick-change battery system comprises a plurality of groups of quick-change battery modules, wherein each quick-change battery module comprises a quick-change battery and a battery management unit;
the hybrid power control system comprises a plurality of groups of battery power sampling and control modules, a DC-DC converter and a hybrid power controller;
each group of battery power sampling and control modules is correspondingly connected with one quick-change battery; the positive electrode of each quick-change battery is connected with the end a of the corresponding battery power sampling and control module, the quick-change battery is controlled to be switched on and off by a main relay, the end b of the battery power sampling and control module is connected with a DC-DC converter, the DC-DC converter is connected with the negative electrode of the quick-change battery, and the quick-change battery and the DC-DC converter are controlled to be switched on and off by an auxiliary relay;
the DC-DC converter is externally connected with the power distribution unit, and can supply power to the high-power stock battery and the driving controller at high voltage;
the battery management unit is connected with the whole vehicle controller through a CAN bus; the DC-DC converter is connected with the hybrid power controller through a CAN bus; the hybrid power controller is connected with the whole vehicle controller through a CAN bus; the high-rate stock battery is connected with the whole vehicle controller through a CAN bus; the driving controller is connected with the whole vehicle controller through a CAN bus.
The vehicle can run for a short distance by carrying a group of high-rate stock batteries, meanwhile, the vehicle is provided with the hybrid power control system and the quick-change battery system battery replacing mechanism, the vehicle can independently use the high-rate stock batteries to run for a short distance, the high-rate batteries can be charged by the charging piles to be the high-rate stock batteries for energy supplement, and the battery replacing system can rent the fully-charged quick-change batteries to the battery replacing station to realize energy supplement during normal use.
Compared with the existing PHEV hybrid electric vehicle technology, the application uses pure electric power as energy, the dependence of driving power on petrochemical energy is equal to zero, the complete zero emission in the use process can be realized, compared with the existing FCV fuel cell technology, the quick-change battery can rely on a power grid to transmit energy, the electric energy can come from renewable energy, and the quick-change battery is more convenient to store electric power. Meanwhile, the air storage tank of the fuel cell, the air compressor and other structural components are omitted. The application uses the quick-change pure electric technology, has more than 1600 tens of thousands of stock in China, has mature technology and complete industrial chain, and is more suitable for the application and popularization of the technology.
The application adopts an electric-electric hybrid power control mode, and the battery can be quickly replaced at the first time of starting to supply power for the whole vehicle at high voltage; the fuel cell is not operated, the fuel cell has a starting process, and the fuel cell has a working efficiency interval, but the DCDC of the battery is basically in the most efficient area and is not affected by temperature.
Preferably, the high-rate stock battery and the quick-change battery can be charged through an external direct-current charging socket DC 1; a direct-current charging loop is formed between the direct-current charging socket DC1 and the high-rate stock battery as well as between the direct-current charging socket DC1 and the quick-change battery, a relay KC1 is arranged between the direct-current charging socket DC1 and the high-rate stock battery, and the on-off of a circuit between the direct-current charging socket DC1 and the high-rate stock battery can be controlled through the relay KC 1; a relay KC2 is arranged between the direct-current charging socket DC1 and the quick-change battery, and the on-off of a circuit between the direct-current charging socket DC1 and the quick-change battery can be controlled through the relay KC 2.
Since the parameters of the batteries connected with the KC1 and the KC2 are different, the two sides cannot be directly conducted, so that the KC1 and the KC2 have an interlocking function, and therefore, only one group of KC1 and KC2 can work at the same time, and the simultaneous work is not allowed.
Preferably, in the direct current charging circuit, a high-rate stock battery and a quick-change battery are arranged in parallel.
Preferably, the quick-change batteries are arranged in parallel.
Preferably, the quick-change batteries are combined in series two by two and then are arranged in parallel.
Preferably, the number of the quick-change battery modules is at least 1, and at most 12; the battery power sampling and control module is 1 group at least and 12 groups at most.
The energy supplementing quick-change battery is at least provided with one box, the maximum is 12 boxes, the quick-change battery is connected with a vehicle through a power conversion mechanism, the output end of the quick-change battery is connected with a hybrid power control system, each circuit of the quick-change battery is connected with a battery power sampling and control part in the hybrid power control system, and the hybrid power controller controls the DCDC converter to output power meeting the requirement according to the power requirement of a driving system and the current SOC of a high-rate battery.
The quick-change batteries 1-12 can flexibly configure battery electric quantity on a passenger car and a light commercial car, and the quick-change batteries are charged in a battery-replacing station and are replaced to a vehicle needing battery replacement through special equipment. The vehicle energy supplementing time is shortened.
Preferably, the DC-DC converter may supply 12V or 24V auxiliary power to the outside.
Preferably, the hybrid control system further comprises a charge control module;
the charging control module can be connected with the high-rate stock battery and the quick-change battery through the normally-open contactor, and when the charging equipment is connected to the outside of the vehicle, the charging control module controls the high-rate stock battery to start charging or close charging preferentially at the moment;
when the charging equipment is connected to the outside of the vehicle and the SOC of the high-rate stock battery reaches the full threshold, the charging control module is connected with the direct-current charging loop of the quick-change battery, and at the moment, the charging control module controls the quick-change battery to start charging or close charging.
Preferably, the quick-change battery can be detached from the power exchange station for replacement, charging and energy supplementing.
Preferably, the hybrid power control system based on the quick-change energy supplementing power battery is applicable to the following use situations: the following strategies can be used for providing the vehicle with power energy required by various scenes under different states of the vehicle:
1. in the vehicle production process, the vehicle is provided with a high-rate stock battery, a hybrid power control system and a quick-change battery system;
2. after the production of the vehicle is finished, in the debugging and inspection process, the high-rate stock battery can be supplemented through a charging pile test, and the energy supplementing test can be performed through the quick-change battery system to install the quick-change battery;
3. during the transportation of the vehicle, the vehicle can be selectively provided with only high-rate stock batteries;
4. in the vehicle storage process, the vehicle can choose to only be provided with the high-rate stock battery, and meanwhile, the charging pile can be used for supplementing energy to the high-rate stock battery of the vehicle as required;
5. in the short-distance moving process of the vehicle, the vehicle can be only provided with the high-rate stock battery, and meanwhile, the charging pile can be used for supplementing energy to the high-rate stock battery of the vehicle as required;
6. in the vehicle selling process, a user can select to rent the quick-change battery and/or equip the high-rate stock battery when buying the vehicle, and can use the charging pile to supplement energy to the high-rate stock battery of the vehicle according to the requirement when selecting to equip the high-rate stock battery;
7. in the using process of the vehicle, a user can rent the quick-change battery for energy supplement according to the mileage requirement of the user;
8. in the process of vehicle-electricity separation charging, a user can rent quick-change battery energy compensation or change electricity energy compensation in a charging station according to own mileage requirements;
9. in the emergency charging process, a user can use a charging pile to supplement energy for the high-rate stock battery of the vehicle as required in the area without the power exchanging station, and the quick-change battery is charged and supplemented with energy through the hybrid power control system.
Compared with the prior art, the application has the following beneficial effects:
1. the vehicle can run for a short distance by carrying a group of high-rate stock batteries, meanwhile, the vehicle is provided with the hybrid power control system and the quick-change battery system battery replacing mechanism, the vehicle can independently use the high-rate stock batteries to run for a short distance, the high-rate batteries can be charged by the charging piles to be the high-rate stock batteries for energy supplement, and the battery replacing system can rent the fully-charged quick-change batteries to the battery replacing station to realize energy supplement during normal use.
Compared with the existing PHEV hybrid electric vehicle technology, the application uses pure electric power as energy, the dependence of driving power on petrochemical energy is equal to zero, the complete zero emission in the use process can be realized, compared with the existing FCV fuel cell technology, the quick-change battery can rely on a power grid to transmit energy, the electric energy can come from renewable energy, and the quick-change battery is more convenient to store electric power. Meanwhile, the air storage tank of the fuel cell, the air compressor and other structural components are omitted. The application uses the quick-change pure electric technology, has more than 1600 tens of thousands of stock in China, has mature technology and complete industrial chain, and is more suitable for the application and popularization of the technology.
2. According to the application, the minimum of the energy supplementing quick-change battery is loaded with 1 box, the maximum of the energy supplementing quick-change battery is 12 boxes, the quick-change battery is connected with a vehicle through a power conversion mechanism, the output end of the quick-change battery is connected with a hybrid power control system, each path of the quick-change battery is connected with a battery power sampling and control part in the hybrid power control system, and the hybrid power controller controls the DCDC converter to output power meeting the requirement according to the power requirement of a driving system and the current SOC of a high-rate battery, and the current SOC and SOE of the quick-change battery.
The quick-change batteries 1-12 can flexibly configure the electric quantity of the batteries on passenger cars and light, medium and heavy commercial vehicles, the quick-change batteries are charged in a power exchange station and are replaced to vehicles needing power exchange through special equipment, and the vehicle energy supplementing time is shortened.
Description of the drawings in order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the description of the embodiments or the prior art will be briefly described, and it is apparent that the drawings in the following description are some embodiments of the present application and that other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the module composition of a hybrid power control system based on a quick change energy-compensating power cell according to the present application;
FIG. 2 is a schematic diagram of a circuit connection of a hybrid power control system based on a quick-change energy-supplementing battery according to the present application, wherein the quick-change batteries are connected in parallel;
FIG. 3 is a schematic diagram showing a circuit connection scheme of a hybrid power control system based on a quick-change energy-supplementing battery according to the present application, wherein the quick-change batteries are combined in series two by two and then are arranged in parallel;
FIG. 4 is a schematic diagram of a usage scenario of a hybrid control system based on a quick change energy-compensating power cell according to the present application;
fig. 5 is a schematic diagram of a control strategy based on a hybrid control system for a quick-change energy-compensating power battery according to the present application.
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
An embodiment I, as shown in FIGS. 1-3, the present embodiment proposes a hybrid power based on a quick-change energy-supplementing batteryControl system including quick-change battery system, hybrid control system, high-rate stock battery (H shown in fig. 2, 3 - Battery), drive controller (MCU shown in FIGS. 2, 3), drive system (shown in FIGS. 2, 3)M)；
As shown in fig. 1, the output end of the quick-change battery system is electrically connected with a hybrid power control system, the output end of the hybrid power control system is connected with a driving controller, the output end of the high-rate stock battery is electrically connected with the driving controller, and the output end of the driving controller is connected with the driving system;
as shown in fig. 2-3, the quick-change battery system includes several sets of quick-change battery modules (SWAP BT1-12 shown in fig. 2, 3), each of which includes a quick-change battery and a battery management unit (BMU shown in fig. 2, 3);
the hybrid control system includes several sets of battery power sampling and control modules (FR 1-12 shown in fig. 2, 3), a DC-DC converter (FV-DCDC shown in fig. 2, 3), and a hybrid controller (HEVCS shown in fig. 2, 3);
each group of battery power sampling and control modules (FR 1-12 shown in figures 2 and 3) is correspondingly connected with one quick-change battery; the positive electrode or the negative electrode of each quick-change battery is connected with one end of the corresponding battery power sampling and control module, and when current flows through the battery power sampling and control module (FR 1-12 shown in fig. 2 and 3), the battery power sampling and control module outputs sampling signals a and b to the HEVCS so as to control the output power of the DCDC converter; the DC-DC converter is connected with the negative electrode or the positive electrode of the quick-change battery, and the on-off between the quick-change battery and the DC-DC converter is controlled by a secondary relay (KT 11-1212 shown in figures 2 and 3);
the DC-DC converter is externally connected with a power distribution unit (PDU shown in figures 2 and 3) and can supply power to the high-rate standing battery and the driving controller at high voltage, and the high-rate standing battery can also supply power to the DC-DC converter and the driving controller at high voltage;
the battery management unit is connected with a whole vehicle controller (VCU shown in figures 2 and 3) through a CAN bus; the DC-DC converter is connected with the hybrid power controller through a CAN bus; the hybrid power controller is connected with the whole vehicle controller through a CAN bus; the high-rate stock battery is connected with the whole vehicle controller through a CAN bus; the driving controller is connected with the whole vehicle controller through a CAN bus.
The Vehicle Control Unit (VCU) is used as an upper control unit to coordinate the operation of the power subsystems, collect driver control person transmission signals, send control instructions to each subsystem, and the main functions of each subsystem of the power system are to receive the instructions of the vehicle controller, control the actions of corresponding components and feed back the state information of the components to the vehicle controller.
As shown in fig. 2, the high-rate stock battery and the quick-change battery can be charged through an external direct-current charging socket DC 1; a direct-current charging loop is formed between the direct-current charging socket DC1 and the high-rate stock battery as well as between the direct-current charging socket DC1 and the quick-change battery, a relay KC1 is arranged between the direct-current charging socket DC1 and the high-rate stock battery, and the on-off of a circuit between the direct-current charging socket DC1 and the high-rate stock battery can be controlled through the relay KC 1; a relay KC2 is arranged between the direct-current charging socket DC1 and the quick-change battery, and the on-off of a circuit between the direct-current charging socket DC1 and the quick-change battery can be controlled through the relay KC 2.
As shown in fig. 2 and 3, in the dc charging circuit, a high-rate stock battery is provided in parallel with a quick-change battery.
As shown in fig. 2, the quick-change batteries are connected in parallel.
As shown in fig. 3, the quick-change batteries may be combined in series and then arranged in parallel.
The number of the quick-change battery modules is at least 1 group, and the number of the quick-change battery modules is at most 12; the battery power sampling and control module is 1 group at least and 12 groups at most.
The DC-DC converter may provide 12V or 24V low voltage power to a low voltage battery.
The hybrid power control system further comprises a charging control module; the charging control module can be connected with the high-rate stock battery and the quick-change battery through the normally-open contactor, and when the charging equipment is connected to the outside of the vehicle, the charging control module controls the high-rate stock battery to start charging or close charging preferentially at the moment; when the charging equipment is connected to the outside of the vehicle and the SOC of the high-rate stock battery reaches the full threshold, the charging control module is connected with the direct-current charging loop of the quick-change battery, and at the moment, the charging control module controls the quick-change battery to start charging or close charging.
The quick-change battery can be detached in the power exchange station to replace charging energy supplement.
According to the embodiment, the vehicle can run in a short distance by carrying a group of high-rate stock batteries, meanwhile, the vehicle is provided with the hybrid power control system and the quick-change battery system battery replacement mechanism, the vehicle can independently use the high-rate stock batteries to run in a short distance, the high-rate batteries can be charged through the charging piles to be used for supplementing energy to the high-rate stock batteries, and the battery can be rented to the battery replacement station to be fully charged to realize energy supplement during normal use.
The minimum of the energy supplementing quick-change batteries is loaded with 1 box, the maximum of the energy supplementing quick-change batteries is 12 boxes, the quick-change batteries are connected with a vehicle through a power conversion mechanism, the output end of the quick-change batteries is connected with a hybrid power control system, each path of the quick-change batteries is connected with a battery power sampling and control part in the hybrid power control system, and the hybrid power controller controls the DCDC converter to output power meeting the requirements according to the power requirements of a driving system and the current SOC of a high-rate battery, and the current SOC and SOE of the quick-change batteries.
The quick-change batteries 1-12 can flexibly configure battery electric quantity on passenger cars and light commercial cars, the quick-change batteries are charged in a power exchange station and are replaced to vehicles needing power exchange through special equipment, and the vehicle energy supplementing time is shortened.
As shown in FIG. 3, the quick-change batteries of the embodiment can be connected in series and then connected in parallel, and the product is mainly applied to medium and heavy vehicles. The other control principles are the same as described above.
In a second embodiment, as shown in fig. 4, the present embodiment proposes a use scenario of a hybrid power control system based on a quick replacement energy-supplementing battery, and based on the technical scheme disclosed in the first embodiment, the use scenario further includes the following technical contents:
the embodiment includes the following usage scenarios:
1. in the vehicle production process, the vehicle is provided with a high-rate stock battery, a hybrid power control system and a quick-change battery system;
2. after the production of the vehicle is finished, in the debugging and inspection process, the high-rate stock battery can be supplemented through a charging pile test, and the energy supplementing test can be performed through the quick-change battery system to install the quick-change battery;
3. during the transportation of the vehicle, the vehicle can be selectively provided with only high-rate stock batteries;
4. in the vehicle storage process, the vehicle can choose to only be provided with the high-rate stock battery, and meanwhile, the charging pile can be used for supplementing energy to the high-rate stock battery of the vehicle as required;
5. in the short-distance moving process of the vehicle, the vehicle can be only provided with the high-rate stock battery, and meanwhile, the charging pile can be used for supplementing energy to the high-rate stock battery of the vehicle as required;
6. in the vehicle selling process, a user can select to rent the quick-change battery and/or equip the high-rate stock battery when buying the vehicle, and can use the charging pile to supplement energy to the high-rate stock battery of the vehicle according to the requirement when selecting to equip the high-rate stock battery;
7. in the using process of the vehicle, a user can rent the quick-change battery for energy supplement according to the mileage requirement of the user;
8. in the process of vehicle-electricity separation charging, a user can rent quick-change battery energy compensation or change electricity energy compensation in a charging station according to own mileage requirements;
9. in the emergency charging process, a user can use a charging pile to supplement energy for the high-rate stock battery of the vehicle as required in the area without the power exchanging station, and the quick-change battery is charged and supplemented with energy through the hybrid power control system.
In the third embodiment, as shown in fig. 5, the embodiment proposes a control strategy based on a hybrid power control system of a quick replacement energy-supplementing power battery, and based on the technical scheme disclosed in the first embodiment or the second embodiment, the control strategy further includes the following technical contents:
the embodiment comprises the following control strategies:
1. in the emergency charging process, a user can charge and supplement energy for the quick-change battery through the charging pile;
at the moment, the driving controller stops outputting to the driving system, the vehicle is in a stop state, and a user can supply power for the hybrid power control system through the charging pile: and output 12V or 24V low pressure to the auxiliary power battery power supply, at this moment the user can select to charge the energy supply as required to the high multiplying power stock battery through hybrid control system, after full of the high multiplying power battery, the electric pile is switched through hybrid control system control, charges to the quick change battery.
2. In the process of vehicle-electricity separation charging, a user can select to change electricity and supplement energy for the quick-change battery through the charging equipment of the power changing station;
at the moment, the driving controller stops outputting to the driving system, the vehicle is in a stop state, and a user can supply power for the hybrid power control system through the charging pile: and output 12V or 24V low voltage to the auxiliary power battery, at this moment the user can choose to charge the high-rate stock battery as required through the hybrid control system and supplement energy, the charging equipment in the power exchange station charges the quick-change battery.
3. In the vehicle-electricity separation operation process, as the vehicle is not provided with a quick-change battery, the hybrid power control system stops outputting to the driving controller, the vehicle system supplies power to the hybrid power control system through the high-rate stock battery, the hybrid power control system supplies 12/24V power to the auxiliary power supply storage battery, the auxiliary power supply supplies mortgage power to the driving controller, and the high-rate stock battery directly supplies power to the driving controller; driving the vehicle to run.
4. In the starting operation process of the hybrid power mode vehicle, the vehicle is provided with a quick-change battery, after the vehicle is started, the quick-change battery supplies power to a hybrid power control system, the hybrid power supplies 12/24V power to an auxiliary power supply storage battery, meanwhile, the hybrid power controller supplies power to a stock high-rate battery and a driving controller, and when the SOC of the stock battery is lower than a set value, the hybrid power controller outputs power to charge the stock high-rate battery.
5. Under the light load condition of the vehicle, the vehicle is provided with the quick-change battery, after the vehicle is started, the quick-change battery supplies power to the hybrid power control system, the hybrid power control system supplies 12/24V power to the auxiliary power supply storage battery, the auxiliary power supply supplies low-voltage power to the driving controller, the hybrid power control system supplies power to the stock high-rate battery and the driving controller simultaneously, the hybrid power control system preferentially uses the quick-change battery to reversely supply power required by driving to the driving controller, and when the SOC of the stock battery is lower than a set value, the hybrid power control system outputs power to charge the stock high-rate battery. At this time, the stock high-rate battery does not participate in the power supply of the driving system.
6. Under the heavy load and acceleration working conditions of the vehicle, the quick-change battery is arranged on the vehicle, after the vehicle is started, the quick-change battery supplies power to the hybrid power control system, the hybrid power supplies 12/24V power to the auxiliary power supply storage battery, the auxiliary power supply supplies low-voltage power to the driving controller, and the hybrid power control system and the stock high-rate battery supply power to the driving controller at the same time, so that the high-power electricity consumption requirement of the vehicle driving system is met.
7. Under the automobile braking working condition, the vehicle is provided with a quick-change battery, the quick-change battery supplies power to a hybrid power control system, the hybrid power control system supplies 12/24V power to an auxiliary power supply storage battery, the auxiliary power supply supplies low-voltage power to a driving controller, the hybrid power control system stops supplying power to a stock high-rate battery and the driving controller, and the driving controller can reversely charge the stock high-rate battery by high-voltage power supply.
8. Under the idle working condition of the automobile, the quick-change battery is arranged on the automobile, after the automobile is started, the quick-change battery supplies power to the hybrid power control system, the hybrid power supplies 12/24V power to the auxiliary power supply storage battery, meanwhile, the hybrid power supplies power to the stock high-rate battery and the driving controller, and when the SOC of the stock battery is lower than a set value, the hybrid power controller outputs power supply to charge the stock high-rate battery.
It is understood that the foregoing description is only illustrative of the present application and is not intended to limit the scope of the application, but rather is to be accorded the full scope of all such modifications and equivalent structures, features and principles as set forth herein.
Finally, it should be noted that: the above examples are only specific embodiments of the present application, and are not intended to limit the scope of the present application, but it should be understood by those skilled in the art that the present application is not limited thereto, and that the present application is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. Hybrid power control system based on quick replacement energy filling power battery, its characterized in that: the device comprises a quick-change battery system, a hybrid power control system, a high-rate stock battery, a driving controller and a driving system;
the output end of the quick-change battery system is electrically connected with the hybrid power control system, the output end of the hybrid power control system is connected with the driving controller, the output end of the high-rate stock battery is electrically connected with the driving controller, and the output end of the driving controller is connected with the driving system;
the quick-change battery system comprises a plurality of groups of quick-change battery modules, wherein each quick-change battery module comprises a quick-change battery and a battery management unit;
the hybrid power control system comprises a plurality of groups of battery power sampling and control modules, a DC-DC converter and a hybrid power controller;
each group of battery power sampling and control modules is correspondingly connected with one quick-change battery; the positive electrode of each quick-change battery is connected with the end a of the corresponding battery power sampling and control module, the quick-change battery is controlled to be switched on and off by a main relay, the end b of the battery power sampling and control module is connected with a DC-DC converter, the DC-DC converter is connected with the negative electrode of the quick-change battery, and the quick-change battery and the DC-DC converter are controlled to be switched on and off by an auxiliary relay;
the DC-DC converter is externally connected with the power distribution unit, and can supply power to the high-power stock battery and the driving controller at high voltage;
the battery management unit is connected with the whole vehicle controller through a CAN bus; the DC-DC converter is connected with the hybrid power controller through a CAN bus; the hybrid power controller is connected with the whole vehicle controller through a CAN bus; the high-rate stock battery is connected with the whole vehicle controller through a CAN bus; the driving controller is connected with the whole vehicle controller through a CAN bus.
2. The quick change energy-compensating battery hybrid control system of claim 1, wherein: the high-rate stock battery and the quick-change battery can be charged through an external direct-current charging socket DC 1; a direct-current charging loop is formed between the direct-current charging socket DC1 and the high-rate stock battery as well as between the direct-current charging socket DC1 and the quick-change battery, a relay KC1 is arranged between the direct-current charging socket DC1 and the high-rate stock battery, and the on-off of a circuit between the direct-current charging socket DC1 and the high-rate stock battery can be controlled through the relay KC 1; a relay KC2 is arranged between the direct-current charging socket DC1 and the quick-change battery, and the on-off of a circuit between the direct-current charging socket DC1 and the quick-change battery can be controlled through the relay KC 2.
3. The quick change energy-compensating battery hybrid control system of claim 2, wherein: in the direct current charging loop, a high-rate stock battery and a quick-change battery are arranged in parallel.
4. A quick change energy-compensating battery hybrid control system in accordance with claim 3, wherein: and the quick-change batteries are connected in parallel.
5. A quick change energy-compensating battery hybrid control system in accordance with claim 3, wherein: the quick-change batteries are connected in series in pairs and then are arranged in parallel.
6. The quick change energy-compensating battery hybrid control system of claim 1, wherein: the number of the quick-change battery modules is at least 1 group, and the number of the quick-change battery modules is at most 12; the battery power sampling and control module is 1 group at least and 12 groups at most.
7. The quick change energy-compensating battery hybrid control system of claim 1, wherein: the DC-DC converter may provide 12V or 24V auxiliary power to the outside.
8. The quick change energy-compensating battery hybrid control system of claim 2, wherein: the hybrid power control system further comprises a charging control module;
the charging control module can be connected with the high-rate stock battery and the quick-change battery through the normally-open contactor, and when the charging equipment is connected to the outside of the vehicle, the charging control module controls the high-rate stock battery to start charging or close charging preferentially at the moment;
when the charging equipment is connected to the outside of the vehicle and the SOC of the high-rate stock battery reaches the full threshold, the charging control module is connected with the direct-current charging loop of the quick-change battery, and at the moment, the charging control module controls the quick-change battery to start charging or close charging.
9. The quick change energy-compensating battery hybrid control system of claim 1, wherein: the quick-change battery can be detached in the power exchange station for replacement and energy supplementing charging.
10. The quick change energy-compensating battery hybrid control system of claim 1, wherein: the method comprises the following use scenes:
1) In the vehicle production process, the vehicle is provided with a high-rate stock battery, a hybrid power control system and a quick-change battery system;
2) After the production of the vehicle is finished, in the debugging and inspection process, the high-rate stock battery can be supplemented through a charging pile test, and the energy supplementing test can be performed through the quick-change battery system and the quick-change battery;
3) During the transportation of the vehicle, the vehicle can be selectively provided with only high-rate stock batteries;
4) In the vehicle storage process, the vehicle can choose to only be provided with the high-rate stock battery, and meanwhile, the charging pile can be used for supplementing energy to the high-rate stock battery of the vehicle as required;
5) In the short-distance moving process of the vehicle, the vehicle can be only provided with the high-rate stock battery, and meanwhile, the charging pile can be used for supplementing energy to the high-rate stock battery of the vehicle as required;
6) In the vehicle selling process, a user can select to rent the quick-change battery and/or equip the high-rate stock battery when buying the vehicle, and can use the charging pile to supplement energy to the high-rate stock battery of the vehicle according to the requirement when selecting to equip the high-rate stock battery;
7) In the using process of the vehicle, a user can rent the quick-change battery for energy supplement according to own mileage requirement;
8) In the process of vehicle-electricity separation charging, a user can rent quick-change battery energy supplementing or change electricity energy supplementing in a charging station according to own mileage requirements;
9) In the emergency charging process, a user can use the charging pile to supplement energy for the high-rate stock battery of the vehicle as required in the area without the power exchanging station, and the quick-change battery is charged and supplemented with energy through the hybrid power control system.
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