CN115663245B - Fuel cell energy control system and method - Google Patents
Fuel cell energy control system and method Download PDFInfo
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Abstract
The invention relates to the technical field of control systems, and provides a fuel cell energy control system and a method, wherein the fuel cell energy control system comprises a fuel cell unit, a shell, a first detection unit, a second detection unit and an adjustment unit, the shell is provided with a cavity for accommodating the fuel cell unit, the first detection unit is used for detecting first operation data of the fuel cell unit, the second detection unit is used for detecting second operation data of a vehicle, the adjustment unit is used for judging whether the second operation data is matched with the first operation data, and if not, the second operation data is adjusted according to the first operation data until the second operation data is matched with the first operation data. According to the fuel cell unit intelligent control method and the fuel cell unit intelligent control system, whether the second operation data of the vehicle are matched with the first operation data of the fuel cell unit or not is judged, and when the second operation data are not matched with the first operation data, the second operation data are adjusted to be matched with the first operation data, so that the intelligent degree of the fuel cell vehicle can be improved.
Description
Technical Field
The invention relates to the technical field of control systems, in particular to a fuel cell energy control system and a fuel cell energy control method.
Background
The fuel cell is a power generation device which directly converts chemical energy in fuel and oxidant into electric energy, and the fuel cell can directly and efficiently convert the chemical energy in the fuel and the oxidant into the electric energy in an electrochemical reaction mode through the catalytic action of an electrocatalyst, and is an energy conversion device similar to a gasoline/diesel generator. However, compared with the latter, the fuel cell has the advantages of high energy conversion efficiency, environmental friendliness, rich fuel types, quietness, high reliability and the like, and is a third-generation environment-friendly energy power system. Fuel cells also have advantages over secondary batteries such as lithium ion batteries in that they have a high energy density and do not require a long waiting period for charging.
In the prior art, for example, chinese patent application No. CN201911081923.3 discloses a hydrogen fuel cell system, in which a hydrogen generator can generate hydrogen and introduce the hydrogen into a fuel cell to convert the hydrogen into electric energy, and a control output module can adjust the generation amount of the hydrogen by the pressure of the hydrogen, so as to avoid the conventional way of supplementing hydrogen with a hydrogen storage tank, and can be used as a matching power supply for various portable instruments. Also, for example, chinese patent application No. CN201110101678.5 discloses a fuel cell system, which can perform heat exchange twice during the operation process, and has the advantages of sufficient energy utilization, high efficiency, and low cost, compared with the prior art. Further, as disclosed in chinese patent application No. CN202010527670.4, a method for calculating residual hydrogen in a hydrogen system of a fuel cell is disclosed, which uses a statistical online iterative calculation method to correct errors in data of a pressure sensor of the hydrogen system, thereby improving the accuracy of calculating residual hydrogen quality in the hydrogen system of the fuel cell.
Therefore, for many practical problems (for example, how to improve the intelligence degree of a fuel vehicle system, etc.) to be dealt with in the practical application of the fuel cell system, there are many technical solutions that are not proposed.
Disclosure of Invention
Based on this, in order to improve the intelligent degree of the fuel vehicle operation, the invention provides a fuel cell energy control system and a method, and the specific technical scheme is as follows:
a fuel cell energy control system comprises a fuel cell unit and a housing, wherein the housing is provided with a cavity for accommodating the fuel cell unit; the fuel cell energy control system further comprises a first detection unit, a second detection unit and an adjusting unit.
A first detection unit for detecting first operation data of the fuel cell unit; the second detection unit is used for detecting second operation data of the vehicle.
And the adjusting unit is used for judging whether the second operation data is matched with the first operation data or not, and if not, adjusting the second operation data according to the first operation data until the second operation data is matched with the first operation data.
The fuel cell energy control system judges whether second operation data of the vehicle are matched with the first operation data of the fuel cell unit or not, and when the second operation data are not matched with the first operation data, the second operation data are adjusted to enable the second operation data to be matched with the first operation data, so that the intelligent degree of the fuel cell vehicle control system can be improved.
The specific method for adjusting the second operation data according to the first operation data until the second operation data is matched with the first operation data comprises the following steps: and adjusting the air conditioner parameters until the distance number is matched with the residual cruising ability.
Further, the specific method in which the first operation data further includes a real-time temperature value of the fuel cell unit, the second operation data further includes a vehicle speed, and the adjusting unit adjusts the second operation data according to the first operation data until the second operation data matches the first operation data includes the steps of: and adjusting the vehicle speed until the vehicle speed is matched with the real-time temperature value.
Further, the second operation data further includes a total load, and the specific method in which the adjusting unit adjusts the second operation data according to the first operation data until the second operation data matches the first operation data includes the steps of: and adjusting the air conditioner parameters according to the total load until the distance number is matched with the residual cruising ability.
A fuel cell energy control method is applied to the fuel cell energy control method and comprises the following steps:
detecting first operating data of the fuel cell unit;
detecting second operating data of the vehicle;
and judging whether the second operation data is matched with the first operation data, if not, adjusting the second operation data according to the first operation data until the second operation data is matched with the first operation data.
The specific method for adjusting the second operation data according to the first operation data by the first operation data comprises the following steps: and adjusting the air conditioner parameters until the distance number is matched with the residual cruising ability.
Further, the specific method of adjusting the second operation data according to the first operation data until the second operation data matches the first operation data comprises the steps of: and adjusting the vehicle speed until the vehicle speed is matched with the real-time temperature value.
Further, the specific method for adjusting the second operation data according to the first operation data until the second operation data matches the first operation data further comprises the following steps: and adjusting the air conditioner parameters according to the total load until the distance number is matched with the residual cruising ability.
Further, a computer-readable storage medium stores a computer program which, when executed by a processor, implements the fuel cell energy control method.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is a schematic diagram of an overall configuration of a fuel cell power control system according to an embodiment of the present invention;
fig. 2 is a schematic overall flow chart of a fuel cell energy control method according to an embodiment of the present invention.
Description of reference numerals:
1. a fuel cell unit; 2. a housing; 3. a first detection unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
As shown in fig. 1, a fuel cell power control system according to an embodiment of the present invention includes a fuel cell unit 1 and a housing 2, the housing having a cavity for accommodating the fuel cell unit; the fuel cell power control system includes a first detection unit 3, a second detection unit (not shown), and a regulation unit (not shown).
The fuel cell unit converts chemical energy into electric energy, and then converts the electric energy into mechanical energy to drive the vehicle to move. The housing is mounted in a vehicle and the fuel cell unit is mounted in a cavity of the housing.
The first detection unit is arranged on the shell or the fuel cell unit and used for detecting first operation data of the fuel cell unit and feeding the first operation data back to the adjusting unit.
The second detection unit is used for detecting second operation data of the vehicle and feeding the second operation data back to the adjusting unit.
Preferably, the first operation data includes a remaining cruising power of the fuel cell unit, and the second operation data includes a number of passes and an air conditioning parameter. The adjusting unit may be a controller of the fuel cell vehicle.
The specific method for adjusting the second operating data by the adjusting unit according to the first operating data until the second operating data matches the first operating data comprises the following steps: and adjusting the air conditioner parameters until the distance number is matched with the residual cruising ability.
Here, the first detection unit calculates the remaining cruising power by acquiring the remaining amount of fuel of the fuel cell unit and the average fuel consumption in the last preset time period.
The last preset time period refers to a preset time width from the current time to the previous time. For example, if the current time is t1, the previous preset time period may be [ t0, t1 ], and the preset time width is t1-t0.
The second detection unit acquires a navigation planning path of the vehicle and acquires the number of routes based on the navigation planning path. The air conditioning parameter includes, but is not limited to, compressor power.
The adjusting unit is used for judging whether the second operation data is matched with the first operation data or not, and if not, adjusting the second operation data according to the first operation data until the second operation data is matched with the first operation data.
Specifically, when the remaining cruising power is less than the number of routes, the number of routes is matched with the remaining cruising power by continuously adjusting air conditioning parameters, such as reducing the power of a compressor, to reduce the fuel consumption of the vehicle, i.e. the number of routes is less than the remaining cruising power; if the residual cruising power is larger than the number of the routes, the air conditioner parameters can not be adjusted.
After the power of the compressor is reduced, the first operation data are acquired through the first detection unit, the second operation data are acquired through the second detection unit and fed back to the adjusting unit, the adjusting unit judges whether the second operation data are matched with the first operation data, and if not, the second operation data are adjusted until the second operation data are matched with the first operation data.
Preferably, assuming that the remaining cruising power is L1, the number of passes is L2, and the adjustment coefficient is a, the adjustment unit decreases the compressor power by continuously adjusting until L2< L1 × a.
The setting of the adjusting coefficient can facilitate the vehicle user to set the personalized adjusting scheme of the air conditioner parameters according to the personal needs of the user so as to meet the requirements of different users.
Specifically, when the adjustment coefficient a is greater than 1, it means to some extent that the personalized adjustment scheme focuses on air conditioning operation to maximally satisfy the temperature adjustment requirements of the vehicle user. When the adjusting coefficient a is less than or equal to 1, the personalized adjusting method is emphasized on the number of the routes to a certain extent, and the navigation planning route requirement of a vehicle user is met to the maximum extent.
Preferably, a minimum power protection value is set in the regulating unit of the fuel cell energy control system. When the remaining cruising power is smaller than the number of journey, reducing the fuel consumption of the vehicle by continuously adjusting air conditioner parameters, such as reducing the power of a compressor and ensuring that the power of the compressor is not lower than the minimum power protection value, so that the number of journey is matched with the remaining cruising power, namely the number of journey is smaller than the remaining cruising power; if the residual cruising power is larger than the number of the routes, the air conditioner parameters are not adjusted.
Generally, when the fuel vehicle air conditioning system is in a cooling state, the greater the compressor power, the greater its cooling capacity; when the air conditioning system of the fuel vehicle is in a heating state, the higher the power of the compressor is, the stronger the heating capacity is.
The minimum power protection value can be set according to the requirements of a user and is used for ensuring the minimum operation of the air conditioning system of the fuel automobile. For example, when the temperature outside the vehicle is higher than the maximum temperature value, the fuel automobile air conditioning system is used for refrigerating, and the minimum power protection value is matched with the maximum value of the refrigerating temperature of the air conditioner, so that the discomfort of people in the vehicle caused by the fact that the temperature inside the vehicle is not too high is ensured; when the temperature outside the vehicle is lower than the minimum temperature value, the fuel automobile air conditioning system is used for heating, and the minimum power protection value is matched with the minimum value of the air conditioning heating temperature, so that the discomfort of people in the vehicle caused by the fact that the temperature inside the vehicle is not too low can be avoided.
Therefore, by setting the minimum power protection value, the parameters of the air conditioner can be better adjusted according to the temperature outside the vehicle, the problem that the temperature in the vehicle is too high or too low due to too low power adjustment of the air conditioner compressor, so that users in the vehicle are uncomfortable is solved, and the intelligent degree of the system is further improved.
In one of the situations, if the remaining cruising power is smaller than the number of routes, the adjustment coefficient may be preset to 1, and the adjustment unit adjusts the air conditioning parameter after acquiring the adjustment instruction input by the user until the number of routes matches the remaining cruising power; and if the adjusting unit does not acquire the adjusting instruction, the second operation parameter is not adjusted.
So, according to first operation data automatically regulated second operation data for second operation data and first operation data phase-match can improve fuel vehicle's intelligent degree.
That is, the fuel cell energy control system can improve the degree of intelligence of the fuel vehicle by determining whether the second operation data of the vehicle matches the first operation data of the fuel cell unit, and by adjusting the second operation data so that the second operation data matches the first operation data when the second operation data does not match the first operation data.
In one embodiment, the specific method in which the first operation data further includes a real-time temperature value of the fuel cell unit, the second operation data further includes a vehicle speed, and the adjusting unit adjusts the second operation data according to the first operation data until the second operation data matches the first operation data includes the steps of: and adjusting the vehicle speed until the vehicle speed is matched with the real-time temperature value.
In this embodiment, in order to prevent the vehicle self-ignition problem caused by the over-high temperature of the fuel cell unit, when the real-time temperature value is greater than the preset temperature value, the adjusting unit automatically reduces the output power of the fuel cell unit to reduce the vehicle speed. Here, the output power of the fuel cell may be reduced at a preset rate, thereby reducing the vehicle speed. And if the real-time temperature value does not have a reduction trend or change after the vehicle speed is reduced to the preset speed threshold value, displaying an early warning signal through the vehicle-mounted terminal.
In the adjusting unit, a plurality of different vehicle speed intervals and real-time temperature value ranges corresponding to the vehicle speed intervals can be preset, and the vehicle speed is adjusted according to the vehicle speed intervals and the corresponding real-time temperature value ranges until the vehicle speed matches the real-time temperature values, namely, the vehicle speed interval where the vehicle speed is located corresponds to the real-time temperature value ranges.
By adjusting the vehicle speed, the vehicle speed is matched with the real-time temperature value, the problem of spontaneous combustion of the fuel vehicle caused by overhigh temperature of the fuel cell unit can be avoided, and the safety of the fuel vehicle is improved.
Of course, when the real-time temperature value is too low, the heating unit arranged in the cavity of the shell can be driven by the adjusting unit, so that the real-time temperature of the fuel cell unit is improved, the power generation efficiency of the fuel cell is improved, and the fuel cell unit can reach the optimal working temperature as soon as possible.
In one embodiment, the second operation data further includes a total load, and the specific method in which the adjusting unit adjusts the second operation data according to the first operation data until the second operation data matches the first operation data includes the steps of: and adjusting the air conditioner parameters according to the total load until the distance number is matched with the residual cruising ability.
Specifically, the historical data of the fuel cell vehicle can be obtained by the fuel cell energy control system, the historical data comprises a total load and an average fuel energy consumption corresponding to the total load, the corresponding average fuel energy consumption is obtained according to the total load, and then the remaining cruising ability is calculated according to the average fuel energy consumption and the remaining fuel quantity of the fuel cell vehicle.
After the residual cruising ability is calculated, the relation between the residual cruising ability and the distance number is judged, and the air conditioner parameters are correspondingly adjusted until the distance number is matched with the residual cruising ability. If the residual cruising ability is larger than the number of the routes, the air conditioner parameters are not adjusted; if the remaining cruising power is less than the number of trips, the air conditioning parameter is adjusted, specifically, the output power of the compressor may be reduced to improve the cruising power of the fuel vehicle until the number of trips matches the remaining cruising power.
In one case, if the ratio of the number of routes to the remaining cruising power is greater than the preset ratio value, it may be considered that the number of routes corresponding to the navigation planned path may not be traveled by the fuel vehicle through the strategy of reducing the output power of the compressor under the current remaining fuel amount of the fuel vehicle. At this time, the adjustment of the air conditioning parameters may be abandoned.
That is, the second operation data further includes a total load, and the specific method in which the adjusting unit adjusts the second operation data according to the first operation data until the second operation data matches the first operation data includes the steps of: and judging that the ratio of the number of the trip distances to the remaining cruising ability is larger than a preset proportional value, if so, stopping adjusting the air conditioning parameters, and if not, adjusting the air conditioning parameters according to the total load until the number of the trip distances matches the remaining cruising ability.
The preset proportion value is greater than 1, and can be adjusted according to the actual needs of the user, which is not described herein again.
Therefore, the system considers the size relation between the number of the planned path routes of the fuel vehicle navigation and the residual cruising ability, and can further improve the intelligent degree by considering the factor that the number of the routes cannot be matched with the residual cruising ability by adjusting air conditioner parameters due to the fact that the number of the routes is larger than the residual cruising ability possibly existing in practice.
In one embodiment, as shown in fig. 2, a fuel cell energy control method applied to the fuel cell energy control method includes the following steps:
s1, detecting first operation data of the fuel cell unit.
And S2, detecting second operation data of the vehicle.
And S3, judging whether the second operation data is matched with the first operation data, if not, adjusting the second operation data according to the first operation data until the second operation data is matched with the first operation data.
Specifically, the specific method for adjusting the second operation data according to the first operation data until the second operation data matches the first operation data includes the steps of: and adjusting the air conditioner parameters until the distance number is matched with the residual cruising ability.
Wherein the first operation data includes a remaining cruising power of the fuel cell unit, and the second operation data includes a number of routes and an air conditioning parameter.
Here, the first detection unit calculates the remaining cruising power by acquiring the remaining fuel amount of the fuel cell unit and the average fuel consumption in the last preset time period. When the remaining cruising power is less than the number of routes, continuously adjusting air conditioner parameters, such as reducing the power of a compressor to reduce the fuel consumption of the vehicle, so that the number of routes is matched with the remaining cruising power, namely the number of routes is less than the remaining cruising power; if the residual cruising power is larger than the number of the routes, the air conditioner parameters can not be adjusted.
The fuel cell energy control method can improve the intelligent degree of the fuel vehicle control system by judging whether the second operation data of the vehicle is matched with the first operation data of the fuel cell unit or not and adjusting the second operation data when the second operation data is not matched with the first operation data so that the second operation data is matched with the first operation data
In one embodiment, the specific method for adjusting the second operation data according to the first operation data until the second operation data matches the first operation data comprises the following steps: adjusting the vehicle speed until the vehicle speed matches the real-time temperature value; wherein the first operating data comprises a real-time temperature value of the fuel cell unit and the second operating data further comprises a vehicle speed.
By adjusting the vehicle speed to match the vehicle speed with the real-time temperature value, the problem of fuel vehicle spontaneous combustion caused by overhigh temperature of the fuel cell unit can be avoided, and the safety of the fuel vehicle is improved.
In one embodiment, the specific method for adjusting the second operation data according to the first operation data until the second operation data matches the first operation data comprises the following steps: and adjusting the air conditioner parameters according to the total load until the distance number is matched with the residual cruising ability.
Wherein the second operational data further comprises a total load.
Specifically, the historical data of the fuel cell vehicle can be obtained by the fuel cell energy control system, the historical data comprises a total load and an average fuel energy consumption corresponding to the total load, the corresponding average fuel energy consumption is obtained according to the total load, and then the remaining cruising ability is calculated according to the average fuel energy consumption and the remaining fuel quantity of the fuel cell vehicle.
After the residual cruising ability is calculated, the relation between the residual cruising ability and the distance number is judged, and the air conditioner parameters are correspondingly adjusted until the distance number is matched with the residual cruising ability. If the residual cruising ability is larger than the number of the routes, the air conditioner parameters are not adjusted; if the remaining cruising power is less than the number of trips, the air conditioning parameter is adjusted, specifically, the output power of the compressor may be reduced to improve the cruising power of the fuel vehicle until the number of trips matches the remaining cruising power.
Therefore, the fuel cell energy control method takes the size relation between the number of the routes of the fuel vehicle navigation planning route and the remaining cruising ability into consideration, and can further improve the intelligent degree by taking the factor that the number of the routes cannot be matched with the remaining cruising ability by adjusting the air conditioner parameters because the number of the routes is larger than the remaining cruising ability possibly existing in practice into consideration.
In one embodiment, the invention further provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the fuel cell energy control method.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. A fuel cell power control system comprising a fuel cell unit and a housing provided with a cavity for accommodating the fuel cell unit, characterized in that the fuel cell power control system further comprises:
a first detection unit for detecting first operation data of the fuel cell unit;
a second detection unit for detecting second operation data of the vehicle;
the adjusting unit is used for judging whether the second operation data is matched with the first operation data or not, and if not, adjusting the second operation data according to the first operation data until the second operation data is matched with the first operation data;
the specific method that the first operation data comprise the remaining cruising ability of the fuel cell unit, the second operation data comprise the number of routes and air-conditioning parameters, and the adjusting unit adjusts the second operation data according to the first operation data until the second operation data are matched with the first operation data comprises the following steps: adjusting the air conditioner parameters until the distance number matches the residual cruising ability;
the adjusting unit reduces the power of the compressor through continuous adjustment until L2 is less than L1 a, L1 is the residual endurance, L2 is the number of passes, and a is an adjusting coefficient;
and when the external temperature of the vehicle is lower than the minimum temperature value, the fuel automobile air conditioning system is used for heating, and the lowest power protection value is matched with the minimum heating temperature value of the air conditioner.
2. A fuel cell power control system as claimed in claim 1 wherein said first operating data further comprises real time temperature values for said fuel cell unit and said second operating data further comprises vehicle speed, and said adjustment unit adjusts said second operating data based on said first operating data until said second operating data matches said first operating data comprises the steps of: and adjusting the vehicle speed until the vehicle speed is matched with the real-time temperature value.
3. A fuel cell power source control system as claimed in claim 2 wherein said second operational data further includes a total load, and said adjustment unit adjusts said second operational data based on said first operational data until said second operational data matches said first operational data by a specific method comprising the steps of: and adjusting the air conditioner parameters according to the total load until the distance number is matched with the residual cruising ability.
4. A fuel cell power control method applied to the fuel cell power control method according to claim 1, characterized by comprising the steps of:
detecting first operating data of the fuel cell unit;
detecting second operating data of the vehicle;
judging whether the second operation data is matched with the first operation data, if not, adjusting the second operation data according to the first operation data until the second operation data is matched with the first operation data;
the specific method for adjusting the second operation data according to the first operation data until the second operation data matches the first operation data comprises the following steps: adjusting the air conditioner parameters until the distance number matches the residual cruising ability;
the adjusting unit reduces the power of the compressor through continuous adjustment until L2 is less than L1 a, L1 is the residual endurance, L2 is the number of passes, and a is an adjusting coefficient;
the fuel automobile air conditioning system is used for refrigerating when the temperature outside the automobile is higher than a maximum temperature value, the lowest power protection value is matched with the maximum value of the refrigerating temperature of the air conditioner, the fuel automobile air conditioning system is used for heating when the temperature outside the automobile is lower than the minimum temperature value, and the lowest power protection value is matched with the minimum value of the heating temperature of the air conditioner.
5. A fuel cell power control method as claimed in claim 4 wherein said first operating data further comprises real time temperature values for said fuel cell unit and said second operating data further comprises vehicle speed, and said specific method of adjusting said second operating data based on said first operating data until said second operating data matches said first operating data comprises the steps of: and adjusting the vehicle speed until the vehicle speed is matched with the real-time temperature value.
6. The fuel cell power control method of claim 5, wherein said second operating data further comprises a total load, and wherein said specific method of adjusting said second operating data based on said first operating data until said second operating data matches said first operating data comprises the steps of: and adjusting the air conditioner parameters according to the total load until the distance number is matched with the residual cruising ability.
7. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the fuel cell energy control method according to any one of claims 4 to 6.
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| CN114179678B (en) * | 2021-11-24 | 2023-07-14 | 华人运通(江苏)技术有限公司 | Vehicle endurance auxiliary control method and system, storage medium and vehicle |
| CN114394034A (en) * | 2022-01-29 | 2022-04-26 | 重庆长安新能源汽车科技有限公司 | Power-saving mode control method and system and electric automobile |
| CN115056683A (en) * | 2022-06-30 | 2022-09-16 | 重庆工程职业技术学院 | Battery pack management system and method |
| CN115320452A (en) * | 2022-09-19 | 2022-11-11 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Vehicle range extending method and device, electronic equipment and storage medium |
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