Energy replenishment method and management system for a battery swap hybrid vehicle

Abstract

The application provides an energy supplement method and management system for a battery-replaceable hybrid vehicle. The vehicle is provided with a battery-replaceable driving system and a range-extending driving system which can be quickly switched and independently used as a main driving system; the battery-replaceable driving system comprises a quick-replaceable battery and a driving motor, and the quick-replaceable battery can be quickly disassembled and replaced at a battery replacement station; the range-extending driving system further comprises a basic battery, and the basic battery and the quick-replaceable battery are simultaneously arranged on the vehicle and can both supply power to the driving motor; the method comprises the following steps: when the vehicle is started, the real-time position of the vehicle and the route information input by a user are acquired; it is judged whether the vehicle will be used for long-distance driving; if yes, it is judged whether the quick-replaceable battery is installed on the vehicle; if yes, it is determined whether the quick-replaceable battery needs to be replaced or fuel needs to be added according to a first residual driving distance, a second residual driving distance, a first pre-driving distance and a second pre-driving distance, so that the vehicle can normally drive to a destination and normally perform energy supplement, thereby guaranteeing normal use of the vehicle.

Description

[0001] This case is the divisional application of application number CN202011066317.7, application date is September 30, 2020, and the name is "energy supplement method and management system of battery swap hybrid electric vehicle". TECHNICAL FIELD

[0002] The present application relates to the technical field of vehicles, in particular to an energy supplement method and an energy supplement management system of a battery swap hybrid electric vehicle. BACKGROUND

[0003] Under the dual pressures of energy saving and emission reduction, developing new energy vehicles has become an inevitable choice for the international community. Electric vehicles are a promising product among new energy vehicles. However, due to the short driving range of current electric vehicles, consumers have range anxiety, which to some extent reduces the willingness of consumers to purchase electric vehicles.

[0004] To solve the problem of range anxiety, there are many solutions, one of which is to use a detachable battery swap combined with a fuel generator to directly drive an electric vehicle. However, there is currently no method that can provide refueling or battery swap strategies for this type of electric vehicle according to the actual use of this type of electric vehicle, which can easily result in the vehicle not having enough energy to reach the destination, or not having enough energy to go to the refueling station or battery swap station after reaching the destination, resulting in poor user experience. SUMMARY

[0005] In view of the above problems, the present application is proposed in order to provide an energy supplement method and an energy supplement management system of a battery swap hybrid electric vehicle that overcomes the above problems or at least partially solves the above problems.

[0006] One object of the present application is to provide an energy supplement method and an energy supplement management system of a battery swap hybrid electric vehicle, which can intelligently switch between a battery swap drive system and / or a range extender drive system according to vehicle information and the distribution of surrounding battery swap stations and fuel supplement stations, and determine the corresponding energy supplement scheme.

[0007] A further object of the present application is to ensure that the vehicle still has enough energy to go to the battery swap station or fuel supplement station for energy supplement after reaching the destination.

[0008] Still another further object of the present application is to provide a more accurate and reasonable energy supplement scheme.

[0009] Still another further object of the present application is to provide a more personalized and safer energy supplement scheme for users.

[0010] In particular, according to an aspect of an embodiment of the present application, an energy supplement method for a battery swap hybrid vehicle is provided, the vehicle being provided with a battery swap drive system and a range extender drive system which can be quickly switched and independently used as a main power system;

[0011] The range extender drive system comprises a range extender and a drive motor;

[0012] The battery swap drive system comprises a quick swap battery and a drive motor, and the quick swap battery can be quickly disassembled and replaced at a battery swap station;

[0013] The method comprises:

[0014] When the user starts the vehicle, the real-time position of the vehicle is obtained, and the user is prompted to select long-distance or short-distance driving or set a destination, and the battery swap drive system and / or the range extender drive system are intelligently switched according to the user's selection; wherein,

[0015] Intelligently switching the battery swap drive system and / or the range extender drive system comprises:

[0016] If the user selects short-distance driving or the destination falls within the short-distance driving range, the distribution information of the battery swap stations around the vehicle is obtained, if there is a battery swap station, the battery swap mode is switched and the battery swap drive system is used, if not, the range extension mode is switched and the range extender drive system is used;

[0017] If the user selects long-distance driving or the destination falls within the long-distance driving range, the total pre-driving amount of the vehicle is determined, and the energy supplement scheme is determined according to the real-time information of the vehicle and the distribution information of the battery swap stations and fuel supplement stations along the long-distance driving route of the vehicle and is pushed to the user.

[0018] Optionally, the real-time information of the vehicle comprises a battery installation state and a total remaining driving amount;

[0019] The energy supplement scheme comprises an energy supplement scheme of multiple price intervals determined from low to high according to the distribution of the battery swap stations and the fuel supplement stations, the real-time fuel price and the power price for the user to select.

[0020] Optionally, the method further comprises a long-distance battery operation mode;

[0021] Determining the energy supplement scheme according to the real-time information of the vehicle and the distribution information of the battery swap stations and fuel supplement stations along the long-distance driving route of the vehicle and pushing it to the user comprises:

[0022] If the number of battery swap stations in the recommended energy supplement scheme for long-distance driving is small or none, the user is recommended to use the long-distance battery operation mode, and the user is prompted to take the quick swap battery out at the nearest battery swap station and drive at high speed after reducing the weight.

[0023] Optionally, the method further comprises a short-distance battery operation mode;

[0024] determining an energy supply scheme according to the instant information of the vehicle and the distribution information of the battery swap stations and the fuel supply stations along the route of the long-distance driving of the vehicle, and pushing the energy supply scheme to the user, including:

[0025] If the number of the battery swap stations in the recommended energy supply scheme for the short-distance driving is large or the daily driving distance is short, the user is recommended to use the short-distance battery operation mode, and is prompted to take off the large-capacity fast-change battery at the nearest battery swap station and replace it with a small-capacity fast-change battery matching the daily driving distance.

[0026] Optionally, the total pre-driving distance includes a first pre-driving distance from the current position of the vehicle to the destination and a second pre-driving distance from the destination to a target battery swap station or a target fuel supply station around the destination.

[0027] The battery installation state of the vehicle includes a first installation state indicating that the fast-change battery is installed on the vehicle.

[0028] In the first installation state, the total remaining driving distance is the sum of a first remaining driving distance of the fast-change battery and a second remaining driving distance of the range extender.

[0029] determining an energy supply scheme according to the instant information of the vehicle and the distribution information of the battery swap stations and the fuel supply stations along the route of the long-distance driving of the vehicle, and pushing the energy supply scheme to the user, including:

[0030] In the first installation state, if the first remaining driving distance is greater than or equal to the first pre-driving distance and the total remaining driving distance is greater than or equal to the total pre-driving distance, it is determined that the vehicle does not need to be supplied with energy.

[0031] If the first remaining driving distance is greater than or equal to the first pre-driving distance and the total remaining driving distance is less than the total pre-driving distance, it is determined that the vehicle needs to be supplied with energy during the driving to the destination, and a corresponding energy supply scheme is determined and pushed to the user.

[0032] Optionally, the first pre-driving distance, the second pre-driving distance, the first remaining driving distance, and the second remaining driving distance are expressed in terms of distance or time.

[0033] Optionally, determining an energy supply scheme according to the instant information of the vehicle and the distribution information of the battery swap stations and the fuel supply stations along the route of the long-distance driving of the vehicle further includes:

[0034] In the first installation state, if the first remaining driving distance is greater than or equal to the product of the first pre-driving distance and a preset proportion threshold and less than the first pre-driving distance, and the total remaining driving distance is greater than or equal to the total pre-driving distance, it is determined that the vehicle needs to remove or replace the fast-change battery during the driving from the current position to the destination.

[0035] if the first remaining driving distance is greater than or equal to a product of the first preset driving distance and the preset proportion threshold and less than the first preset driving distance, and the total remaining driving distance is less than the total preset driving distance, it is determined that the vehicle needs to travel to the nearest fuel supplement station from the current position of the vehicle to add fuel;

[0036] if the first remaining driving distance is less than the product of the first preset driving distance and the preset proportion threshold, it is determined that the vehicle needs to dismount or replace the fast-charging battery during the travel from the current position to the destination.

[0037] Optionally, the vehicle real-time information further comprises road condition information between the current position and the destination of the vehicle;

[0038] Before determining that the vehicle needs to dismount or replace the fast-charging battery during the travel, further comprising:

[0039] determining a congested road section according to the road condition information;

[0040] determining that the vehicle needs to dismount or replace the fast-charging battery during the travel, comprising:

[0041] determining that the vehicle needs to dismount or replace the fast-charging battery before reaching the congested road section.

[0042] Optionally, the battery installation state further comprises a second installation state indicating that the fast-charging battery has been dismounted from the vehicle;

[0043] The vehicle real-time information further comprises road condition information between the current position and the destination of the vehicle;

[0044] According to the vehicle real-time information and the distribution information of the battery swap stations and the fuel supplement stations along the long-distance travel route of the vehicle, determining the energy supplement scheme, further comprising:

[0045] In the second installation state, judging whether the road between the current position and the destination of the vehicle is smooth according to the road condition information;

[0046] if the road between the current position and the destination of the vehicle is not smooth, determining a congested road section according to the road condition information and obtaining a predicted congestion duration of the congested road section;

[0047] judging whether the predicted congestion duration is greater than or equal to a preset time threshold, if yes, determining that the vehicle needs to go to the battery swap station to install the fast-charging battery before reaching the congested road section;

[0048] if the road between the current position and the destination of the vehicle is smooth, judging whether the total remaining driving distance is greater than or equal to the total preset driving distance;

[0049] if the total remaining driving distance is greater than or equal to the total preset driving distance, it is determined that the vehicle does not need to be supplemented with energy;

[0050] If the total remaining driving distance is less than the total pre-driving distance, it is determined that the vehicle needs to drive to the nearest fuel refueling station or the nearest battery swapping station to add fuel or install a fast-swappable battery.

[0051] Optionally, the total remaining driving distance of the vehicle is obtained by:

[0052] The remaining energy amount and the current driving parameter of the vehicle are obtained, and the original total remaining driving distance is calculated according to the remaining energy amount and the current driving parameter.

[0053] The user habit parameter of the vehicle is obtained, and the original total remaining driving distance is corrected according to the user habit parameter to obtain the total remaining driving distance.

[0054] Optionally, before determining the total pre-driving distance of the vehicle, the method further comprises:

[0055] According to the historical driving data of the vehicle and the current time and / or the current position of the vehicle, the destination and the pre-driving path of the vehicle are determined.

[0056] The total pre-driving distance of the vehicle is determined, comprising:

[0057] According to the current position, the destination, the pre-driving path of the vehicle, and the distribution of the battery swapping station and the fuel refueling station around the destination, the total pre-driving distance of the vehicle is determined.

[0058] According to another aspect of the embodiment of the present application, an energy supplement management system of a battery swapping hybrid vehicle is also provided, wherein the vehicle is provided with a battery swapping driving system and a range extending driving system which can be quickly switched and independently used as a main driving system.

[0059] The range extending driving system comprises a range extender and a driving motor.

[0060] The battery swapping driving system comprises a fast-swappable battery and a driving motor, and the fast-swappable battery can be quickly detached and replaced at a battery swapping station.

[0061] The system comprises:

[0062] The information acquisition unit is configured to acquire the real-time position of the vehicle when the user starts the vehicle and prompt the user to select long-distance or short-distance driving or set a destination.

[0063] The operation switching unit is configured to intelligently switch the battery swapping driving system and / or the range extending driving system according to the user's selection; wherein,

[0064] The operation switching unit is further configured to:

[0065] If the short-distance driving is selected or the destination falls within the short-distance driving range, the information acquisition unit acquires the vehicle surrounding battery swap station distribution information, switches to the battery swap mode and uses the battery swap type driving system if there is a battery swap station, and switches to the range extending mode and uses the range extending type driving system if there is not.

[0066] If the long-distance driving is selected or the destination falls within the long-distance driving range, the total pre-driving amount of the vehicle is determined, and the energy supply scheme is determined according to the vehicle real-time information and the battery swap station and fuel supply station distribution information along the long-distance driving route of the vehicle and is pushed to the user.

[0067] The energy supply method and management system of the battery swap type hybrid vehicle provided by the embodiment of the present application is applied to the battery swap type hybrid vehicle adopting the fast-changing battery combined with the range extender, can intelligently switch the battery swap type driving system and / or the range extending type driving system according to the vehicle information and the distribution of the surrounding battery swap station and fuel supply station, and determine the corresponding energy supply scheme, so that the vehicle can normally drive to the destination and normally perform energy supply, thereby ensuring the normal use of the vehicle.

[0068] Further, the energy supply method and management system provided by the embodiment of the present application considers whether the total remaining driving amount of the vehicle can meet the sum of the first pre-driving amount of the vehicle from the current position to the destination and the second pre-driving amount of the vehicle from the destination to the target energy supply station (target battery swap station or target fuel supply station) around the destination when determining the energy supply scheme in the case that the remaining electric quantity of the fast-changing battery is sufficient to support the vehicle to reach the destination, that is, whether the remaining energy of the vehicle after reaching the destination is sufficient for the vehicle to reach the target energy supply station, thereby ensuring that the vehicle still has sufficient energy to go to the energy supply station for energy supply after reaching the destination, and avoiding the problem of insufficient energy after reaching the destination.

[0069] Further, the energy supply method and management system provided by the embodiment of the present application can provide more accurate and reasonable energy supply schemes by combining the different battery installation states, pre-driving amounts, remaining driving amounts and road condition information of the vehicle when determining the energy supply scheme, thereby further ensuring the normal use of the vehicle.

[0070] Further, the energy supply method and management system provided by the embodiment of the present application can correct the remaining driving amount of the vehicle and / or determine the pre-driving amount according to the user habit when determining the energy supply scheme, thereby providing more personalized and safer energy supply schemes for the user.

[0071] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, which can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described as follows.

[0072] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description considered in conjunction with the accompanying drawings, in which: BRIEF DESCRIPTION OF DRAWINGS

[0073] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a better understanding of the preferred embodiments, and are incorporated in and constitute a part of this specification, illustrate embodiments that, together with the description, serve to explain the principles of the application. In the drawings:

[0074] Figure 1 A structural schematic diagram of a battery swap hybrid vehicle according to an embodiment of the present application is shown;

[0075] Figure 2 A structural schematic diagram of a battery swap hybrid vehicle according to another embodiment of the present application is shown;

[0076] Figure 3 A structural schematic diagram of a battery swap hybrid vehicle according to yet another embodiment of the present application is shown;

[0077] Figure 4 A structural schematic diagram of a battery swap hybrid vehicle according to still another embodiment of the present application is shown;

[0078] Figure 5 A cross-sectional schematic diagram of a quick swap device in a locked state according to an embodiment of the present application is shown;

[0079] Figure 6 A cross-sectional schematic diagram of a quick swap device in an unlocked state according to an embodiment of the present application is shown;

[0080] Figure 7 A flowchart of a method of energy replenishment for a battery swap hybrid vehicle according to an embodiment of the present application is shown;

[0081] Figure 8 A flowchart of a step of determining an energy replenishment scheme according to instant information of a vehicle and distribution information of battery swap stations and fuel replenishment stations along a long-distance route of the vehicle according to an embodiment of the present application is shown;

[0082] Figure 9 A flowchart of a step of determining an energy replenishment scheme according to instant information of a vehicle and distribution information of battery swap stations and fuel replenishment stations along a long-distance route of the vehicle according to another embodiment of the present application is shown;

[0083] Figure 10A flowchart illustrating the steps of determining an energy replenishment plan based on real-time vehicle information and the distribution information of battery swapping stations and refueling stations along the vehicle's long-distance travel route, according to another embodiment of the present invention, is shown.

[0084] Figure 11 A schematic diagram of the energy replenishment management system of a battery-swapping hybrid vehicle according to an embodiment of the present invention is shown. Detailed Implementation

[0085] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0086] To address the aforementioned technical problems, this invention provides an energy replenishment method for a battery-swapping hybrid vehicle. The energy replenishment method proposed in this invention can be applied to a battery-swapping hybrid vehicle 100 with the following structure.

[0087] Figure 1 A schematic diagram of a battery-swapping hybrid vehicle 100 according to an embodiment of the present invention is shown. See also Figure 1 As shown, the battery-swapping hybrid vehicle 100 may include at least a range-extended drive system consisting of a range extender 10 and a drive motor 31, and a fast-swap battery 20. The range extender 10 consists of an engine 14 and a generator 15. The range extender 10 can be connected to the drive motor 31, and the generator 15 generates electricity driven by the power output of the engine 14 to provide electrical energy to the drive motor 31. The fast-swap battery 20 can be quickly removed and replaced at a battery swapping station to achieve rapid replenishment of electrical energy. In practical applications, for example, after removing the low-charge fast-swap battery 20 using a battery swapping tool, a fully charged fast-swap battery 20 can be reinstalled in the hybrid vehicle 100 to achieve battery swapping. The fast-swap battery 20 is connected to the drive motor 31 and constitutes the battery-swapping drive system. The range extender 10 and the quick-swap battery 20 can independently supply power to the drive motor 31. That is, either the range extender 10 or the quick-swap battery 20 can supply power to the drive motor 31 independently when the other is not operating and cannot provide power. Therefore, the battery-swapping drive system 1 and the range-extending drive system 2 can quickly switch and independently serve as the main power system of the battery-swapping hybrid vehicle 100. The quick-swap battery 20 can also be connected to the range extender 10 (specifically, to the generator 15), thereby receiving and storing excess electrical energy when the range extender 10 is operating.

[0088] The power exchange type hybrid vehicle 100 provided by the embodiment of the present application comprises a range extending type driving system composed of the range extender 10 and the driving motor 31, and a power exchange type driving system composed of the fast exchangeable battery 20 and the driving motor 31. The fast exchangeable battery 20 can be quickly disassembled and replaced at a power exchange station. Since the power exchange type driving system and the range extending type driving system can be quickly switched and separately used as the main power system, the range extending type driving system powered by the range extender 10 and / or the power exchange type driving system powered by the fast exchangeable battery 20 can be freely and flexibly switched according to the use scenarios and economy to drive the vehicle to run.

[0089] Specifically, for example, for non-long distance running scenarios (such as running in urban areas), when the price of fuel used by the range extender 10 (such as oil price) is low, the range extender 10 is used to work to supply power to the driving motor 31, and when the electricity price is relatively low, the fast exchangeable battery 20 is used, and the fast exchangeable battery 20 is replaced and used through the power exchange station to ensure the power supply to the driving motor 31. For long distance running scenarios, fuel can be filled to ensure sufficient fuel supply for the range extender 10, and the fast exchangeable battery 20 is replaced and used through the power exchange station to obtain the maximum cruising range.

[0090] Referring to Figure 2 In one embodiment of the present application, the range extending type driving system can further comprise a basic battery 12. The basic battery 12 is connected to the range extender 10 (specifically connected to the generator 15) and the driving motor 31, respectively. The basic battery 12 can be a conventional power battery, for example. Through the dual battery arrangement of the basic battery 12 and the fast exchangeable battery 20, various different arrangements of the basic battery 12 and the fast exchangeable battery 20 can be used to make the switching and use of the range extending type driving system and the power exchange type driving system more diversified, and further improve the use flexibility of the power exchange type hybrid vehicle 100 in different scenarios. Different arrangements of the basic battery 12 and the fast exchangeable battery 20 will be introduced below.

[0091] In one embodiment, the basic battery 12 and the fast exchangeable battery 20 are arranged on the vehicle 100 simultaneously. The basic battery 12 is fixed on the vehicle 100, and the fast exchangeable battery 20 is arranged on the vehicle 100 in a quick disassembly and replaceable manner.

[0092] In this configuration, when vehicle 100 is powered by the range-extended drive system, the base battery 12 supplies power to the drive motor 31 when it has sufficient charge. When the base battery 12 is low on charge, the engine 14 starts running, simultaneously supplying power to the drive motor 31 via generator 15 and charging the base battery 12. During high-load conditions such as uphill driving or rapid acceleration, both the range extender 10 and the base battery 12 supply power to the drive motor 31. During downhill driving or coasting, the drive motor 31 acts as a generator, charging the base battery 12 and recovering kinetic energy. When vehicle 100 is powered by the battery-swapping drive system, the quick-swap battery 20 directly supplies power to the drive motor 31. This implementation makes it easy to switch between the range extender 10 and the quick-swap battery 20 as the power source in non-long-distance driving scenarios based on fuel and electricity prices, while also ensuring maximum range during long-distance driving.

[0093] In another embodiment, the base battery 12 and the quick-swap battery 20 are simultaneously installed on the vehicle 100. The base battery 12 and the quick-swap battery 20 are both quickly removable and replaceable on the vehicle 100. In this case, both the base battery 12 and the quick-swap battery 20 can be removed or replaced via a battery swapping station, thereby minimizing fuel consumption and making it ideal for applications where fuel prices are high and electricity prices are low. Furthermore, this also increases the maximum driving range of the vehicle 100 to some extent.

[0094] In another embodiment, the base battery 12 and the quick-swap battery 20 of the vehicle 100 can be installed in pairs such that when one of the base battery 12 and the quick-swap battery 20 is installed on the vehicle 100, the other is installed in a battery swapping station for circulation and charging. Specifically, there are two scenarios.

[0095] The first scenario, refer to... Figure 3 As shown, the base battery 12 is mounted on the vehicle 100, while the fast-swap battery 20 is located at the battery swapping station for circulation and charging. This configuration is particularly suitable for use scenarios where fuel prices are low and range requirements are low (such as urban driving). In this case, removing the fast-swap battery 20 and placing it at the battery swapping station reduces the overall weight of the vehicle 100 and increases the operating time of the fast-swap battery 20, thereby improving its utilization efficiency.

[0096] The second scenario, refer to... Figure 4As shown, the fast replaceable battery 20 is arranged on the vehicle 100, while the base battery 12 is arranged on the replaceable battery station for circulation charging. This scenario is particularly suitable for use in scenarios where the fuel price is relatively high, there is a certain requirement for the cruising range, and the replaceable battery station is fully laid out. At this time, the base battery 12 is removed and placed in the replaceable battery station for operation, which to some extent reduces the overall weight of the vehicle 100, thereby improving the energy utilization efficiency of the fast replaceable battery 20.

[0097] With continued reference to Figure 2 As shown, in one embodiment of the present application, the range extending drive system can further include a fuel tank 13. The fuel tank 13 is connected to the engine 14 of the range extender 10, and is used to supply fuel to the engine 14.

[0098] In actual application, the fuel stored in the fuel tank 13 depends on the type of the engine 14 of the range extender 10. Generally, the fuel in the fuel tank 13 can include gasoline, diesel, methanol, ethanol, biofuel, natural gas, hydrogen, etc. Correspondingly, the engine 14 can be a gasoline engine, a diesel engine, a methanol engine, etc.

[0099] In order to further enhance the use flexibility of the fast replaceable battery 20, in some embodiments, the fast replaceable battery 20 can be designed to have multiple specifications of capacity and weight. Through this design, different capacity and weight of the fast replaceable battery 20 can be replaced and used according to the actual application requirements in different use scenarios, so as to maximize the energy efficiency and economy. For example, when driving long distances, a large-capacity fast replaceable battery 20 can be replaced and used through the replaceable battery station on the basis of filling the fuel tank 13 with fuel, so as to obtain a greater cruising range. In the case of driving in the urban area and the replaceable battery station is fully laid out in the urban area, a small-capacity and small-weight fast replaceable battery 20 can be replaced and used through the replaceable battery station, so as to reduce the empty weight.

[0100] In one embodiment of the present application, the capacity of the fast replaceable battery 20 can be less than twice the total amount of supplyable electric energy of the range extender 10. The total amount of supplyable electric energy of the range extender 10 refers to the maximum total amount of electric energy that the range extender 10 can provide in the case that the fuel tank 13 is filled with fuel. This setting makes the electric energy provided by the range extender 10 and the fast replaceable battery 20 similar, breaks the design in the prior art that the range extender is usually only used as a secondary auxiliary power source, and makes the fast replaceable battery 20 and the range extender 10 able to back up each other and each independently serve as a main power source.

[0101] Preferably, the capacity of the quick-change battery 20 can be greater than 0.5 times the total amount of electric energy supplyable by the range extender 10 and less than 2 times the total amount of electric energy supplyable by the range extender 10. More preferably, the capacity of the quick-change battery 20 is 0.5-1.5 times the total amount of electric energy supplyable by the range extender 10. Even more preferably, the capacity of the quick-change battery 20 is 1 times the total amount of electric energy supplyable by the range extender 10, i.e. the capacity of the quick-change battery 20 is equal to the total amount of electric energy supplyable by the range extender 10. By such design, the range extender 10 will no longer merely serve as an auxiliary power source, and the switching between the range extender 10 and the quick-change battery 20 will be more flexible and free.

[0102] In some embodiments, the capacity of the base battery 12 can be in the range of 1-1.47kwh. In this case, since the capacity of the base battery 12 is much smaller than the capacity of the power battery commonly used in hybrid vehicles (generally in the range of 15-60kwh), correspondingly, the weight of the base battery 12 is also greatly reduced compared with the weight of the power battery commonly used, which on one hand can effectively reduce the weight of the whole vehicle and improve the energy utilization efficiency, and on the other hand, the small-capacity base battery 12 does not need to consider the function of external charging, which is conducive to the control of cost and the selection of layout.

[0103] In some other embodiments, the capacity of the base battery 12 can be in the range of 1.47-5.5kwh. In this case, the capacity (i.e. the energy density) of the base battery 12 is appropriately increased, which to some extent increases the cruising range of the hybrid vehicle 100, but at the same time, the capacity of the base battery 12 is still much smaller than the capacity of the power battery commonly used in hybrid vehicles, thereby achieving a better balance between the capacity of the battery and the weight of the whole vehicle.

[0104] Continuing to refer to Figure 2 As shown, in one embodiment of the present application, the vehicle 100 can further include an inverter. Specifically, the inverter can include a first inverter 51 arranged between the base battery 12 and the drive motor 31 and between the generator 15 and the drive motor 31, and a second inverter 52 arranged between the quick-change battery 20 and the drive motor 31. The role of the inverter here should be well known to those skilled in the art, which will not be described herein.

[0105] In one embodiment of the present application, the vehicle 100 can further include a transmission mechanism 60 and a drive shaft 32. The drive shaft 32 is connected to the wheels 40 of the vehicle 100. The transmission mechanism 60 can be arranged between the drive motor 31 and the drive shaft 32, i.e. the drive motor 31 is connected to the drive shaft 31 through the transmission mechanism 60, and the driving force generated by the drive motor 31 is transmitted to the drive shaft 32 through the transmission mechanism 60 to drive the wheels 40 to rotate.

[0106] In one embodiment of the present application, the vehicle 100 can further be provided with a quick-change device 70. One end of the quick-change device 70 can be connected to the lower vehicle body of the vehicle 100, and the other end can be connected to the base battery 12 or the quick-change battery 20. The quick-change device 70 can be used to quickly dismount and mount the base battery 12 or the quick-change battery 20.

[0107] Referring to Figure 5 and Figure 6 In one specific embodiment, the quick-change device 70 can include a limiting pin shaft 71, a housing 72, a bolt 73, a support rod 74, and a limiting ball 75. One end of the limiting pin shaft 71 is connected to the lower vehicle body of the vehicle 100. The housing 72 is connected to the base battery 12 or the quick-change battery 20, and has a trapezoidal cavity inside. Specifically, the housing 72 is located at the edge of the base battery 12 or the quick-change battery 20, and the housing 72 is connected to the base battery 12 or the quick-change battery 20 through the bolts on the left and right sides of the lower part of the housing 72. The bolt 73 is located at the lower part of the cavity, extends into the cavity, and is threadedly connected to the housing 72. The support rod 74 is located inside the cavity and is supported by the bolt 73 inside the cavity, and can move up and down relative to the housing 72 together with the bolt 73. The limiting ball 75 is located at the middle part of the support rod 74. The middle part of the limiting pin shaft 71 has a recessed part 711 recessed towards the axis of the limiting pin shaft 71, the inside of the support rod 74 is hollow and has a gap 741 at a position corresponding to the recessed part 711, and the limiting ball 75 cooperates with the gap 741. When the quick-change device 70 is in the locked state, the limiting pin shaft 71 is inserted into the inside of the support rod 74, and the limiting ball 75 is clamped into the recessed part 711.

[0108] When it is necessary to mount the base battery 12 or the quick-change battery 20 to the vehicle 100, the limiting pin shaft 71 is separated from the housing 72, and the jacking mechanism transports the base battery 12 or the quick-change battery 20 to the position near the limiting pin shaft 71 at the lower part of the vehicle body. At this time, the limiting pin shaft 71 is inserted into the housing 72, but the recessed part 711 on the limiting pin shaft 71 and the limiting ball 75 are not at the same horizontal plane, i.e. the limiting ball 75 is not clamped into the recessed part 711, but the limiting ball 75 is located in the gap 741 on the support rod 74. Therefore, if it is necessary to mount the base battery 12 or the quick-change battery 20 to the vehicle 100, the bolt 73 needs to drive the support rod 74 and the limiting ball 75 to move upward relative to the housing 72 together until the limiting ball 75 is clamped into the recessed part 711. In this way, by clamping the limiting ball 75 into the recessed part 711, the quick-change device 70 is in the locked state (as shown in Figure 5 ), so as to mount the base battery 12 or the quick-change battery 20 to the vehicle 100.

[0109] When the base battery 12 or the fast replacement battery 20 needs to be detached, the jacking mechanism jacks up the base battery 12 or the fast replacement battery 20, at this time, the motor drives the bolt 73 to move downward relative to the housing 72 to form an unlocking state (as shown in Figure 6 Here, when the jacking mechanism jacks up the base battery 12 or the fast replacement battery 20, the limiting ball 75 is also released from the force state, so that the bolt 73 can be driven by the motor to move downward, and the support rod 74 is also released from the upward jacking force of the bolt 73 to move downward until the limiting ball 75 moves out of the recess 711. At this time, the base battery 12 or the fast replacement battery 20 falls onto the jacking mechanism, and the detachment process of the base battery 12 or the fast replacement battery 20 is completed.

[0110] The fast replacement device 70 of the embodiment can simply and quickly realize locking and unlocking, and improve the installation and detachment efficiency of the battery.

[0111] It should be noted that the above introduction is only one implementation of the fast replacement device 70 in the present application. Of course, the fast replacement device 70 can also have other implementations, which are not limited by the present application.

[0112] In an embodiment of the present application, when the vehicle starts, the real-time position of the vehicle and the route information input by the user can be obtained, then whether the vehicle will make a long trip is determined according to the route information input by the user, in the case that it is determined that the vehicle will make a long trip, whether the fast replacement battery is installed in the vehicle is determined, if the fast replacement battery is installed, whether the fast replacement battery needs to be replaced or fuel needs to be added can be determined according to the first residual driving distance of the fast replacement battery, the second residual driving distance of the range extender, the first predicted driving distance of the vehicle from the current position to the destination, and the second predicted driving distance of the vehicle from the destination to the target battery replacement station or the target fuel supplement station around the destination. If the fast replacement battery is not installed, whether the road between the current position of the vehicle and the destination is smooth can be determined according to the road condition information, if the road between the current position of the vehicle and the destination is not smooth, the congested road section is determined and the predicted congestion duration of the congested road section is obtained according to the road condition information, whether the predicted congestion duration is greater than or equal to a preset time threshold is determined, if yes, it can be determined that the vehicle needs to go to the battery replacement station to install the fast replacement battery before reaching the congested road section.

[0113] Figure 7 A flowchart of an energy supplement method of a battery replacement type hybrid vehicle according to an embodiment of the present application is shown. The energy supplement method can be applied to the battery replacement type hybrid vehicle 100 of any embodiment or combination of embodiments. Referring to FIG. 10, the energy supplement method can at least include the following steps S102 to S104. Figure 1

[0114] ​Step S102, when the user starts the vehicle, the real-time position of the vehicle is acquired and the user is prompted to select long-distance or short-distance driving or set a destination.

[0115] In this step, the real-time position of the vehicle can be acquired by a positioning system (such as a GPS positioning system, a Beidou satellite positioning system, etc.). The user can be prompted to select long-distance or short-distance driving or set a destination through voice or other methods, and the user's selection or setting can be acquired according to the user's triggering of the corresponding button. The vehicle information entertainment system (vehicle system) can also be used to interact with the user to prompt and acquire. Of course, the real-time position of the vehicle can also be acquired and the user can be prompted to select long-distance or short-distance driving or set a destination through other methods, and the present application does not limit this.

[0116] Step S104, according to the user's selection, the electric swap driving system and / or the range extending driving system are intelligently switched. Specifically, according to the user's selection, the electric swap driving system and / or the range extending driving system are intelligently switched, including: if short-distance driving is selected or the destination falls within the short-distance driving range, the distribution information of the surrounding swap stations of the vehicle is acquired, if there is a swap station, the electric swap mode is switched and the electric swap driving system is used, if not, the range extending mode is switched and the range extending driving system is used. If long-distance driving is selected or the destination falls within the long-distance driving range, the total pre-driving amount of the vehicle is determined, and according to the real-time information of the vehicle and the distribution information of the swap stations and fuel supplement stations along the way of the long-distance driving of the vehicle, the energy supplement scheme is determined and pushed to the user. The fuel supplement station mentioned herein can be a gas station, etc.

[0117] In this step, short-distance driving and long-distance driving can be distinguished according to a preset distance threshold, for example, the preset distance threshold is 200km, if the expected driving distance exceeds the preset distance threshold, it is considered as long-distance driving, otherwise it is considered as short-distance driving. Whether the destination falls within the short-distance driving range or the long-distance driving range can be determined according to the distance between the destination and the current real-time position of the vehicle and the size relationship of the preset distance threshold. If the distance between the destination and the current real-time position of the vehicle exceeds the preset distance threshold, it is determined to fall within the long-distance driving range, otherwise it is determined to fall within the short-distance driving range. The preset distance threshold can be set according to the performance of the vehicle and the actual demand, and the present application does not limit it specifically.

[0118] In this step, the destination of the vehicle, the distribution information of the battery swap stations around the vehicle, and the distribution information of the battery swap stations and fuel supply stations along the long-distance driving route of the vehicle can be obtained through the offline map or online map loaded on the vehicle and the navigation information of the vehicle. The online map and the navigation information can be obtained through the Internet of Vehicles technology. The total pre-driving amount refers to the total driving amount of the vehicle, which can be expressed in mileage or time. When expressed in mileage, the total pre-driving amount can also be referred to as total pre-driving mileage. When expressed in time, the total pre-driving amount can also be referred to as total pre-driving time length. The total pre-driving amount of the vehicle can be determined according to the current real-time position of the vehicle, the destination, and the distribution of the battery swap stations and fuel supply stations around the destination.

[0119] The energy supply method of the battery swap hybrid vehicle provided by the embodiment of the present application is applied to the battery swap hybrid vehicle adopting the fast-swappable battery combined with the range extender. The battery swap driving system and / or the range extender driving system can be intelligently switched according to the vehicle information and the distribution of the surrounding battery swap stations and fuel supply stations, and the corresponding energy supply scheme is determined, so that the vehicle can normally drive to the destination and normally perform energy supply, thereby ensuring the normal use of the vehicle.

[0120] In an embodiment of the present application, the instant information of the vehicle can include the battery installation state and the total remaining driving amount. The total remaining driving amount refers to the total driving amount that can be supported by the remaining energy of the vehicle. The total remaining driving amount can also be expressed in mileage or time, and can also be referred to as total remaining driving mileage or total remaining driving time length accordingly. The total remaining driving amount can be obtained through the instrument of the vehicle or calculated according to the remaining energy amount of the vehicle and the current driving parameters through the existing algorithm, which should be known by those skilled in the art, and will not be described in detail.

[0121] In this case, the aforementioned energy supply scheme can include an energy supply scheme of multiple price intervals determined from low to high according to the distribution of the battery swap stations and fuel supply stations, the real-time fuel price, and the real-time electricity price for the user to select. In this way, the most economical energy supply scheme is provided under the premise of ensuring the normal driving of the vehicle, thereby improving the user experience.

[0122] In an embodiment of the present application, the energy supply method can further include a long-distance battery operation mode. In this case, the step of determining the energy supply scheme according to the instant information of the vehicle and the distribution information of the battery swap stations and fuel supply stations along the long-distance driving route of the vehicle and pushing the energy supply scheme to the user can be further implemented as follows: if the number of battery swap stations in the recommended energy supply scheme for long-distance driving is small or zero, the long-distance battery operation mode is recommended to the user, prompting the user to take off the fast-swappable battery at the nearest battery swap station and then perform high-speed driving after reducing the weight.

[0123] In this embodiment, when there are few or no battery swapping stations, making it difficult or impossible to replace the quick-swap battery, removing the vehicle's quick-swap battery can effectively reduce the vehicle's overall weight, thereby reducing the range extender's energy consumption and improving energy efficiency.

[0124] In another embodiment of the invention, the energy replenishment method may further include a short-distance battery operation mode. In this case, the step of determining an energy replenishment plan and pushing it to the user based on real-time vehicle information and the distribution information of battery swapping stations and refueling stations along the vehicle's long-distance travel route can be further implemented as follows: if there are many battery swapping stations or the daily driving mileage is short in the recommended energy replenishment plan for short-distance travel, then the short-distance battery operation mode is recommended to the user, prompting the user to remove the large-capacity fast-swap battery at the nearest battery swapping station and replace it with a small-capacity fast-swap battery that matches the daily driving mileage.

[0125] In this embodiment, by using a small-capacity fast-swap battery in the short-distance battery operation mode, the vehicle's empty weight can be reduced and energy utilization can be improved.

[0126] In one embodiment of the present invention, the total pre-trip distance may include a first pre-trip distance from the vehicle's current location to its destination and a second pre-trip distance from the vehicle's destination to a target energy replenishment station (i.e., a target battery swapping station or a target fuel replenishment station) in the vicinity of the destination. The target energy replenishment station mentioned herein may be specified by the user or selected from all energy replenishment stations around the destination according to preset filtering rules. Preset filtering rules may include: selecting the energy replenishment station closest to the destination from all energy replenishment stations around the destination as the target energy replenishment station; or, based on the user's historical usage data, selecting the energy replenishment station with the highest historical usage frequency from all energy replenishment stations around the destination as the target energy replenishment station; or, combining the above two methods, using a weighted method to comprehensively consider the influence of distance to the destination and the user's historical usage frequency to select the target energy replenishment station. Of course, other types of preset filtering rules are also possible, and the present invention does not limit this.

[0127] The first and second pre-trip distances, along with the total pre-trip distance, are expressed in mileage or time, respectively. When expressed in mileage, the first and second pre-trip distances are referred to as the first pre-trip mileage and the second pre-trip mileage, respectively. When expressed in time, the first and second pre-trip distances are referred to as the first pre-trip duration and the second pre-trip duration, respectively.

[0128] The battery installation state of the vehicle can include a first installation state indicating that the fast-changing battery is installed on the vehicle. In the first installation state, the total remaining driving distance of the vehicle is the sum of a first remaining driving distance of the fast-changing battery and a second remaining driving distance of the range extender. The first remaining driving distance refers to the driving distance that can be supported by the remaining electric quantity of the fast-changing battery. In the case where the range extender driving system of the battery swap hybrid vehicle does not include a base battery, the second remaining driving distance refers to the driving distance that can be supported by the remaining fuel of the range extender in the range extender driving system. In the case where the range extender driving system of the battery swap hybrid vehicle includes a base battery, the second remaining driving distance refers to the sum of the driving distance that can be supported by the remaining fuel of the range extender in the range extender driving system and the driving distance that can be supported by the stored electric quantity of the base battery. The first remaining driving distance and the second remaining driving distance are expressed in miles or time according to the total remaining driving distance. When expressed in miles, the first remaining driving distance and the second remaining driving distance are respectively referred to as a first remaining driving mileage and a second remaining driving mileage. When expressed in time, the first remaining driving distance and the second remaining driving distance are respectively referred to as a first remaining driving time length and a second remaining driving time length.

[0129] In this case, with reference to Figure 8 According to the vehicle instant information and the distribution information of the battery swap stations and the fuel supplement stations along the long-distance driving route of the vehicle, the step of determining the energy supplement scheme can include:

[0130] Step S206a: In the first installation state, if the first remaining driving distance is greater than or equal to the first pre-driving distance and the total remaining driving distance is greater than or equal to the total pre-driving distance (i.e., the sum of the first pre-driving distance and the second pre-driving distance), it is determined that the vehicle does not need to be supplemented with energy.

[0131] Step S206b: In the first installation state, if the first remaining driving distance is greater than or equal to the first pre-driving distance and the total remaining driving distance is less than the total pre-driving distance, it is determined that the vehicle needs to be supplemented with energy on the way to the destination, a corresponding energy supplement scheme is determined and pushed to the user.

[0132] In the present application, the energy supplement station can include a battery swap station and / or a fuel supplement station (such as a gas station). Accordingly, the way of supplementing the vehicle with energy can include replacing or removing the fast-changing battery through the battery swap station, and / or adding the fuel (such as gasoline, hydrogen, methanol, etc.) required by the range extender through the gas station.

[0133] In the embodiment, when the first residual driving distance of the vehicle is greater than or equal to the first preset driving distance (i.e., the residual power of the power battery is sufficient to support the vehicle to reach the destination), the total residual driving distance of the vehicle is considered to meet the sum of the first preset driving distance and the second preset driving distance, i.e., whether the residual power of the vehicle after reaching the destination is sufficient for the vehicle to reach the target energy supplement station, so as to ensure that the vehicle has sufficient power to reach the energy supplement station for energy supplement after reaching the destination, and the problem of insufficient power after reaching the destination is avoided.

[0134] Further, in one embodiment, referring to FIG. 1, Figure 9 In the first installation state, the step of determining the energy supplement scheme according to the instant information of the vehicle and the distribution information of the battery swap stations and the fuel supplement stations along the long-distance driving route of the vehicle can further include the following steps.

[0135] In the first installation state, if the first residual driving distance is greater than or equal to the product of the first preset driving distance and the preset proportion threshold and less than the first preset driving distance, and the total residual driving distance is greater than or equal to the total preset driving distance, it is determined that the vehicle needs to dismount or replace the fast-charging battery during the driving from the current position to the destination.

[0136] In the first installation state, if the first residual driving distance is greater than or equal to the product of the first preset driving distance and the preset proportion threshold and less than the first preset driving distance, and the total residual driving distance is less than the total preset driving distance, it is determined that the vehicle needs to drive to the nearest fuel supplement station from the current position of the vehicle to add fuel.

[0137] In the first installation state, if the first residual driving distance is less than the product of the first preset driving distance and the preset proportion threshold, it is determined that the vehicle needs to dismount or replace the fast-charging battery during the driving from the current position to the destination.

[0138] In the embodiment, the preset proportion threshold is a value less than 1, which can be set according to actual application requirements. For example, the power requirement of the fast-charging battery can be set according to the use performance of the vehicle, or the battery use habit of the user (such as historical statistical data of the proportion value of the residual power of the fast-charging battery when the user supplements energy). In a specific implementation, the preset proportion threshold can be set to 2 / 3, for example.

[0139] The embodiment further provides corresponding energy supplement schemes for different range extenders in the case that the first residual driving distance of the fast-charging battery is less than the first preset driving distance (i.e., the residual power of the fast-charging battery is insufficient to support the vehicle to reach the destination), which further ensures the normal use of the vehicle.

[0140] Further, in one embodiment, the vehicle instant information can further include road condition information between the current location and the destination of the vehicle. The road condition information can be acquired from the cloud in real time through the Internet of Vehicles technology. In this way, before determining that the vehicle needs to dismount or replace the fast-charging battery during the driving from the current location to the destination, the congested road section between the current location and the destination of the vehicle can be determined according to the acquired road condition information.

[0141] In this case, the step of determining that the vehicle needs to dismount or replace the fast-charging battery during the driving from the current location to the destination can be further implemented as: determining that the vehicle needs to dismount or replace the fast-charging battery before reaching the congested road section. That is, the step S206c can be further implemented as: in the first mounting state, if the first remaining driving distance is greater than or equal to the product of the first predetermined driving distance and the preset proportion threshold and less than the first predetermined driving distance, and the total remaining driving distance is greater than or equal to the total predetermined driving distance, it is determined that the vehicle needs to dismount or replace the fast-charging battery before reaching the congested road section. The step S206e can be further implemented as: in the first mounting state, if the first remaining driving distance is less than the product of the first predetermined driving distance and the preset proportion threshold, it is determined that the vehicle needs to dismount or replace the fast-charging battery before reaching the congested road section. By dismounting the fast-charging battery before the congestion, the weight of the whole vehicle can be reduced, thereby reducing the energy consumption of the vehicle on the congested road section. Alternatively, by replacing the fast-charging battery before the congestion, sufficient energy can be ensured for the vehicle to run.

[0142] In one embodiment, the vehicle instant information can include the battery mounting state of the vehicle, the total remaining driving distance, and the road condition information between the current location and the destination of the vehicle, wherein the battery mounting state can include a second mounting state indicating that the fast-charging battery has been dismounted from the vehicle. In the second mounting state, since the fast-charging battery has been dismounted from the vehicle (i.e., not on the vehicle), the total remaining driving distance of the vehicle at this time is equal to the second remaining driving distance of the range extender.

[0143] In this case, referring to FIG. 6, according to the vehicle instant information and the distribution information of the battery swap stations and the fuel supplement stations along the long-distance driving route of the vehicle, the step of determining the energy supplement scheme can include: Figure 10

[0144] Step S402, in the second mounting state, it is judged according to the road condition information whether the road between the current location and the destination of the vehicle is smooth. If not, step S404 is executed. If yes, step S410 is executed.

[0145] Step S404, according to the road condition information, a congested road section is determined and the predicted congestion duration of the congested road section is acquired. Step S406 is continued to be executed.

[0146] ​In this embodiment, the predicted congestion duration can be determined according to the predicted travel time of the congestion road segment provided in the navigation information.

[0147] In step S406, it is determined whether the predicted congestion duration is greater than or equal to a preset time threshold. If yes, step S408 is performed.

[0148] The preset time threshold can be set according to actual application requirements. For example, it can be set as the maximum time required for the vehicle to go to the battery swap station to install or replace the fast-swappable battery.

[0149] In step S408, it is determined that the vehicle needs to go to the battery swap station to install the fast-swappable battery before reaching the congestion road segment.

[0150] In the case where the congestion duration is greater than or equal to the preset time threshold, going to the battery swap station to swap the battery before reaching the congestion road segment can improve the utilization of time and avoid the congestion road segment and congestion time to a certain extent, and is particularly suitable for urban driving scenarios.

[0151] In step S410, it is determined whether the total remaining driving distance is greater than or equal to the total predicted driving distance. If yes, step S412 is performed. If no, step S414 is performed.

[0152] In step S412, it is determined that the vehicle does not need to be supplemented with energy.

[0153] In step S414, it is determined that the vehicle needs to drive to the closest fuel supplement station to the current position of the vehicle to add fuel, or to the closest battery swap station to the current position of the vehicle to install the fast-swappable battery.

[0154] In this embodiment, in the installed state of the fast-swappable battery after being unloaded, the predicted driving distance, the remaining driving distance, and the road condition information can be combined to provide a more accurate and reasonable energy supplement scheme, further ensuring the normal use of the vehicle.

[0155] In some embodiments, when it is determined that the vehicle does not need to be supplemented with energy, the user can not be prompted, thereby saving time and avoiding disturbing the user, and improving the user experience.

[0156] As mentioned above, the total remaining driving distance can be obtained through the instrument of the vehicle, or calculated according to the remaining energy amount of the vehicle and the current driving parameters by using existing algorithms. However, these methods do not take into account the influence of different user habits. For example, the number of times of using the air conditioner and the number of times of braking of different users will affect the remaining driving distance of the vehicle. Therefore, in an embodiment, the total remaining driving distance of the vehicle can be obtained in the following manner:

[0157] First, the remaining energy amount of the vehicle and the current driving parameter of the vehicle are obtained, and the original total remaining driving distance is calculated according to the remaining energy amount and the current driving parameter. The driving parameter can include the average speed of the vehicle, the vehicle load, the vehicle age, etc. The calculation of the original total remaining driving distance should be known to those skilled in the art, and will not be described in detail.

[0158] Then, the user habit parameter of the vehicle is obtained, and the original total remaining driving distance is corrected according to the user habit parameter to obtain the total remaining driving distance.

[0159] The user habit parameter can include air conditioner use time, brake times, gear switching times, user weight, etc. The correction can be performed by a machine learning model. For example, the historical habit parameters of the user and the corresponding historical data of the original total remaining driving distance of the vehicle are taken as input, and the corresponding actual total remaining driving distance data is taken as output, and the machine learning model is trained, and in the correction, the user habit parameter and the current original total remaining driving distance are input into the trained machine learning model to obtain the corrected total remaining driving distance.

[0160] For the first remaining driving distance and the second remaining driving distance, a similar method to the total remaining driving distance can be used for correction, which will not be described in detail herein.

[0161] The embodiment can correct the remaining driving distance of the vehicle according to the user habit, thereby providing a more personalized and safer energy supplement scheme for the user.

[0162] In another embodiment, in step S104, before determining the total pre-driving distance of the vehicle, the destination and the pre-driving path of the vehicle can also be determined according to the historical driving data of the vehicle and the current time and / or the current position of the vehicle. Further, the step of determining the total pre-driving distance of the vehicle can be further implemented as: determining the total pre-driving distance of the vehicle according to the current position of the vehicle, the determined destination and pre-driving path, and the distribution of energy supplement stations (i.e. battery swap stations and fuel supplement stations) around the destination. The historical driving data of the vehicle can include the historical driving trajectory and driving time of the vehicle, etc.

[0163] The determination method of the first pre-driving distance and the second pre-driving distance is similar to that of the total pre-driving distance, which will not be described in detail herein.

[0164] In the embodiment, the influence of the historical driving data of the vehicle is considered when determining the pre-driving distance of the vehicle. Since the historical driving data reflects the user's usage habit, the energy supplement scheme determined based on this method is more personalized and safer.

[0165] Based on the same inventive concept, the application also provides an energy supplement management system of the battery swap hybrid vehicle. The energy supplement management system can be applied to the battery swap hybrid vehicle 100 of any of the above embodiments or combinations of embodiments.

[0166] Figure 11 A structural schematic diagram of an energy supplement management system 80 of a battery swap hybrid vehicle according to an embodiment of the application is shown. Referring to FIG. 1, the energy supplement management system 80 can include at least an information acquisition unit 81 and a calculation switching unit 82. Figure 11

[0167] The functions of each component or device of the energy supplement management system 80 of the battery swap hybrid vehicle according to the embodiment of the application and the connection relationship between the components are described as follows:

[0168] The information acquisition unit 81 is configured to acquire the real-time position of the vehicle and prompt the user to select long-distance or short-distance driving or set a destination when the user starts the vehicle.

[0169] The calculation switching unit 82 can be connected to the information acquisition unit 81 and is configured to intelligently switch the battery swap driving system and / or the extended-range driving system according to the user's selection. Specifically, the calculation switching unit 82 is further configured to: if the user selects short-distance driving or the destination falls within the short-distance driving range, trigger the information acquisition unit 81 to acquire the distribution information of the battery swap stations around the vehicle, if there is a battery swap station, switch to the battery swap mode and use the battery swap driving system, and if there is not, switch to the extended-range mode and use the extended-range driving system; if the user selects long-distance driving or the destination falls within the long-distance driving range, determine the total pre-driving amount of the vehicle, and according to the real-time information of the vehicle and the distribution information of the battery swap stations and fuel supplement stations along the long-distance driving route of the vehicle, determine the energy supplement scheme and push it to the user.

[0170] In an embodiment of the application, the real-time information of the vehicle includes the battery installation state and the total remaining driving amount. The energy supplement scheme includes the energy supplement scheme of multiple price intervals determined from low to high according to the distribution of the battery swap stations and the fuel supplement stations, the real-time fuel price, and the electricity price for the user to select.

[0171] In an embodiment of the application, the calculation switching unit 82 is further configured to: if the number of battery swap stations in the recommended energy supplement scheme for long-distance driving is small or there is none, recommend a long-distance battery operation mode to the user, prompt the user to take off the fast battery at the nearest battery swap station, and then perform high-speed driving after reducing the weight.

[0172] ​In another embodiment of the present application, the operation switching unit 82 is further configured to recommend the short-distance battery operation mode to the user, and prompt the user to take off the large-capacity fast-swappable battery at the nearest battery swapping station and replace it with a small-capacity fast-swappable battery matching the daily driving distance, if the number of battery swapping stations in the recommended energy replenishment scheme for short-distance driving is large or the daily driving distance is short.

[0173] In one embodiment of the present application, the total pre-driving distance includes a first pre-driving distance from the current location of the vehicle to the destination and a second pre-driving distance from the destination to a target battery swapping station or a target fuel replenishment station around the destination. The battery installation state of the vehicle includes a first installation state indicating that the fast-swappable battery is installed on the vehicle. In the first installation state, the total remaining driving distance is the sum of a first remaining driving distance of the fast-swappable battery and a second remaining driving distance of the range extender.

[0174] Correspondingly, the operation switching unit 82 can be further configured to determine that the vehicle does not need energy replenishment in the first installation state if the first remaining driving distance is greater than or equal to the first pre-driving distance and the total remaining driving distance is greater than or equal to the total pre-driving distance. If the first remaining driving distance is greater than or equal to the first pre-driving distance and the total remaining driving distance is less than the total pre-driving distance, it is determined that the vehicle needs energy replenishment on the way to the destination, and the corresponding energy replenishment scheme is determined and pushed to the user.

[0175] In one embodiment of the present application, the operation switching unit 82 can be further configured to determine that the vehicle needs to dismount or replace the fast-swappable battery on the way from the current location to the destination in the first installation state if the first remaining driving distance is greater than or equal to the product of the first pre-driving distance and a preset proportion threshold and less than the first pre-driving distance, and the total remaining driving distance is greater than or equal to the total pre-driving distance. If the first remaining driving distance is greater than or equal to the product of the first pre-driving distance and the preset proportion threshold and less than the first pre-driving distance, and the total remaining driving distance is less than the total pre-driving distance, it is determined that the vehicle needs to drive to the nearest fuel replenishment station from the current location of the vehicle to add fuel. If the first remaining driving distance is less than the product of the first pre-driving distance and the preset proportion threshold, it is determined that the vehicle needs to dismount or replace the fast-swappable battery on the way from the current location to the destination.

[0176] Further, in one embodiment of the present application, the vehicle real-time information can further include road condition information between the current location and the destination of the vehicle.

[0177] Correspondingly, the operation switching unit 82 can also be configured to, in the first installation state, if the first residual driving distance is greater than or equal to the product of the first preset driving distance and the preset proportion threshold and less than the first preset driving distance, and the total residual driving distance is greater than or equal to the total preset driving distance, determine a congestion road section according to the road condition information, and determine that the vehicle needs to dismount or replace the quick-change battery before reaching the congestion road section. If the first residual driving distance is greater than or equal to the product of the first preset driving distance and the preset proportion threshold and less than the first preset driving distance, and the total residual driving distance is less than the total preset driving distance, it is determined that the vehicle needs to drive to the nearest fuel supplement station from the current position of the vehicle to add fuel. If the first residual driving distance is less than the product of the first preset driving distance and the preset proportion threshold, the congestion road section is determined according to the road condition information, and it is determined that the vehicle needs to dismount or replace the quick-change battery before reaching the congestion road section.

[0178] In one embodiment, the battery installation state can include a second installation state indicating that the quick-change battery has been dismounted from the vehicle. The real-time information can also include road condition information between the current position and the destination of the vehicle. Correspondingly, the operation switching unit 82 can also be configured to:

[0179] In the second installation state, it is determined according to the road condition information whether the road between the current position and the destination of the vehicle is smooth;

[0180] If the road between the current position and the destination of the vehicle is not smooth, the congestion road section is determined according to the road condition information and the predicted congestion duration of the congestion road section is obtained;

[0181] It is determined whether the predicted congestion duration is greater than or equal to the preset time threshold, and if so, it is determined that the vehicle needs to go to the battery replacement station to install the quick-change battery before reaching the congestion road section;

[0182] If the road between the current position and the destination of the vehicle is smooth, it is determined whether the total residual driving distance is greater than or equal to the total preset driving distance;

[0183] If the total residual driving distance is greater than or equal to the total preset driving distance, it is determined that the vehicle does not need to be supplemented with energy;

[0184] If the total residual driving distance is less than the total preset driving distance, it is determined that the vehicle needs to drive to the nearest fuel supplement station from the current position of the vehicle to add fuel, or to the nearest battery replacement station from the current position of the vehicle to install the quick-change battery.

[0185] In one embodiment of the present application, the operation switching unit 82 can also be configured to:

[0186] Obtain the residual energy amount and the current driving parameter of the vehicle, and calculate the original total residual driving distance according to the residual energy amount and the current driving parameter;

[0187] Obtain a user habit parameter of the vehicle, correct the original total remaining driving distance according to the user habit parameter, and obtain the total remaining driving distance.

[0188] In an embodiment of the present application, the operation switching unit 82 can also be configured to:

[0189] According to the historical driving data of the vehicle, the current time and / or the current position of the vehicle, determine the destination and the pre-driving path of the vehicle;

[0190] According to the current position of the vehicle, the destination, the pre-driving path, and the distribution of the energy supplement stations around the destination, determine the total pre-driving distance of the vehicle.

[0191] According to any one of the above optional embodiments or a combination of multiple optional embodiments, the embodiments of the present application can achieve the following beneficial effects:

[0192] The energy supplement method and management system of the battery swap hybrid vehicle provided by the embodiments of the present application are applied to the battery swap hybrid vehicle using fast-swappable batteries combined with range extenders, can intelligently switch the battery swap driving system and / or the range extender driving system according to the vehicle information and the distribution of the surrounding battery swap stations and fuel supplement stations, and determine the corresponding energy supplement scheme, so that the vehicle can normally travel to the destination and normally perform energy supplement, thereby ensuring the normal use of the vehicle.

[0193] Further, the energy supplement method and management system provided by the embodiments of the present application considers whether the total remaining driving distance of the vehicle can meet the sum of the first pre-driving distance of the vehicle from the current position to the destination and the second pre-driving distance of the vehicle from the destination to the target energy supplement station (target battery swap station or target fuel supplement station) around the destination when determining the energy supplement scheme, that is, whether the remaining energy of the vehicle after reaching the destination is sufficient for the vehicle to reach the target energy supplement station, thereby ensuring that the vehicle still has sufficient energy to go to the energy supplement station for energy supplement after reaching the destination, avoiding the problem of insufficient energy after reaching the destination.

[0194] Further, the energy supplement method and management system provided by the embodiments of the present application can provide more accurate and reasonable energy supplement schemes by combining different battery installation states, pre-driving distances, remaining driving distances and road condition information of the vehicle when determining the energy supplement scheme, further ensuring the normal use of the vehicle.

[0195] Further, the energy supplement method and management system provided by the embodiments of the present application can correct and / or determine the pre-driving distance of the vehicle according to the user habit when determining the energy supplement scheme, thereby providing more personalized and safer energy supplement schemes for the user.

[0196] Those skilled in the art will clearly understand that the specific working process of the systems, devices and units described above can be referred to the corresponding process in the foregoing method embodiments. For the sake of brevity, it will not be repeated here.

[0197] Furthermore, the functional units in the various embodiments of the present invention can be physically independent of each other, or two or more functional units can be integrated together, or all functional units can be integrated into one processing unit. The integrated functional units described above can be implemented in hardware, or in software or firmware.

[0198] Those skilled in the art will understand that if the integrated functional unit is implemented in software and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or all or part of it, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computing device (e.g., a personal computer, server, or network device) to execute all or part of the steps of the methods described in the embodiments of the present invention when running the instructions. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0199] Alternatively, all or part of the steps of the foregoing method embodiments can be implemented by hardware (such as a computing device, personal computer, server, or network device) related to program instructions. The program instructions can be stored in a computer-readable storage medium. When the program instructions are executed by the processor of the computing device, the computing device executes all or part of the steps of the methods described in the various embodiments of the present invention.

[0200] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that within the spirit and principles of the present invention, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the corresponding technical solutions to depart from the protection scope of the present invention.

Claims

1. An energy supplement method for a battery swap hybrid vehicle, characterized in that, a battery swap drive system and a range extender drive system are provided on the vehicle, and can be switched quickly and independently as a main drive system; the range extender drive system comprises a range extender and a drive motor; the battery swap drive system comprises a quick swap battery and the drive motor, and the quick swap battery can be quickly disassembled and replaced at a battery swap station; the range extender drive system further comprises a base battery, and the base battery and the quick swap battery are provided on the vehicle at the same time and can both supply power to the drive motor; the method comprises: when the vehicle is started, obtaining the real-time position of the vehicle and the route information input by the user; determining whether the vehicle will travel a long distance according to the route information input by the user; if so, determining whether the quick swap battery is installed on the vehicle; if so, determining whether the quick swap battery needs to be replaced or fuel needs to be added according to the first residual driving distance of the quick swap battery, the second residual driving distance of the range extender, the first predicted driving distance of the vehicle from the current position to the destination, and the second predicted driving distance of the vehicle from the destination to the target battery swap station or the target fuel supplement station around the destination; wherein the step of determining whether the quick swap battery needs to be replaced or fuel needs to be added according to the first residual driving distance of the quick swap battery, the second residual driving distance of the range extender, the first predicted driving distance of the vehicle from the current position to the destination, and the second predicted driving distance of the vehicle from the destination to the target battery swap station or the target fuel supplement station around the destination comprises: when the first residual driving distance is greater than or equal to the product of the first predicted driving distance and a preset proportion threshold and less than the first predicted driving distance, and the total residual driving distance is greater than or equal to the total predicted driving distance, it is determined that the quick swap battery needs to be disassembled or replaced during the driving from the current position to the destination, wherein the total residual driving distance is the sum of the first residual driving distance and the second residual driving distance, and the total predicted driving distance comprises the first predicted driving distance and the second predicted driving distance; if the first residual driving distance is less than the product of the first predicted driving distance and the preset proportion threshold, it is determined that the quick swap battery needs to be disassembled or replaced during the driving from the current position to the destination; if the first residual driving distance is greater than or equal to the product of the first predicted driving distance and the preset proportion threshold and less than the first predicted driving distance, and the total residual driving distance is less than the total predicted driving distance, it is determined that the vehicle needs to drive to the closest fuel supplement station from the current position of the vehicle to add fuel; if the first residual driving distance is greater than or equal to the first predicted driving distance and the total residual driving distance is greater than or equal to the total predicted driving distance, it is determined that the vehicle does not need to be supplemented with energy; if the first residual driving distance is greater than or equal to the first predicted driving distance and the total residual driving distance is less than the total predicted driving distance, it is determined that the vehicle needs to be supplemented with energy during the driving to the destination, a corresponding energy supplement scheme is determined and pushed to the user.

2. The energy replenishing method of claim 1, wherein, The step of determining whether the quick-change battery needs to be replaced or fuel needs to be added before the step of determining whether the quick-change battery needs to be replaced or fuel needs to be added according to the first residual driving distance of the quick-change battery, the second residual driving distance of the range extender, the first predicted driving distance of the vehicle from the current position to the destination, and the second predicted driving distance of the vehicle from the destination to the target quick-change station or the target fuel supplement station around the destination comprises: According to the road condition information, a congested road section is determined so as to determine that the vehicle needs to remove or replace the quick-change battery before reaching the congested road section when the vehicle needs to replace the quick-change battery, wherein the road condition information is information between the current position of the vehicle and the destination.

3. The energy supplement method according to claim 1, wherein The first predicted driving distance, the second predicted driving distance, the first residual driving distance, and the second residual driving distance are expressed in mileage or time.

4. The energy replenishing method of claim 2, wherein, The step of determining whether the vehicle is installed with the quick-change battery further comprises: If not, it is determined according to the road condition information whether the road between the current position of the vehicle and the destination is smooth; If the road between the current position of the vehicle and the destination is not smooth, a congested road section is determined according to the road condition information and a predicted congestion duration of the congested road section is obtained; It is determined whether the predicted congestion duration is greater than or equal to a preset time threshold, and if yes, it is determined that the vehicle needs to go to a quick-change station to install the quick-change battery before reaching the congested road section.

5. The energy replenishing method of claim 4, wherein, The step of determining according to the road condition information whether the road between the current position of the vehicle and the destination is smooth further comprises: If the road between the current position of the vehicle and the destination is smooth, it is determined whether the total residual driving distance is greater than or equal to the total predicted driving distance; If the total residual driving distance is greater than or equal to the total predicted driving distance, it is determined that the vehicle does not need to be supplemented with energy; If the total residual driving distance is less than the total predicted driving distance, it is determined that the vehicle needs to drive to the nearest fuel supplement station to add fuel or to the nearest quick-change station to install the quick-change battery.

6. The energy replenishment method of claim 1, wherein, The step of determining whether the vehicle will make a long-distance trip according to the route information input by the user further comprises: If yes, it is determined whether the number of quick-change stations along the route is small or zero; If yes, the user is prompted to remove the quick-change battery at the nearest quick-change station and then drive at high speed after reducing the weight.

7. The energy replenishing method of claim 6, wherein, The step of determining whether the number of quick-change stations along the route is small or zero further comprises: If not, the user is prompted to remove the quick-change battery with large capacity at the nearest quick-change station and replace it with a quick-change battery with small capacity matching the daily driving distance.

8. An energy replenishment management system for a battery swap hybrid vehicle, characterized by, The vehicle is provided with a quick-change driving system and a range-extended driving system which can be quickly switched and independently used as a main driving system; The range-extended driving system comprises a range extender and a driving motor; The quick-change driving system comprises a quick-change battery and the driving motor, and the quick-change battery can be quickly removed and replaced at a quick-change station; The system comprises a controller, the controller comprising a memory and a processor, the memory having stored therein a control program, the control program being executable by the processor to implement the energy replenishment method of any one of claims 1-7.

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