CN117621920A - Power supply method and device for vehicle, electronic equipment and storage medium - Google Patents
Power supply method and device for vehicle, electronic equipment and storage medium Download PDFInfo
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Abstract
The present application relates to a power supply method, apparatus, electronic device, storage medium and computer program product for a vehicle. The method comprises the following steps: acquiring the electric quantity of a power battery of the vehicle in the running process; if the electric quantity of the power battery meets the power system switching condition, acquiring vehicle parameters of the vehicle; analyzing the running state of the vehicle based on the vehicle parameters, and determining the real-time running state of the vehicle; and determining a power system matched with the real-time running state to supply power to the vehicle according to the real-time running state. By adopting the method, the power supply efficiency of the vehicle can be improved.
Description
Technical Field
The present application relates to the field of automotive technology, and in particular, to a power supply method, apparatus, electronic device, storage medium, and computer program product for a vehicle.
Background
With the development of new energy industry, hybrid configuration automobiles are emerging. Conventional hybrid configurations, such as P0, P1, P2, P3, P4, etc., all have an engine, a power battery, an electric motor as the main configuration components.
From the practical use perspective, any power form can not keep the highest efficiency operation all the time in the running process of the vehicle, and based on the optimal use principle of energy, a plurality of power forms are combined to establish a novel composite power system, so that the novel composite power system is one of key measures for ensuring that the hybrid power technology can be successfully applied in the field of automobiles. At present, for a composite power system combining multiple power forms, in the process of supplying power to a vehicle, the power supply efficiency of the composite power system is lower.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a power supply method, apparatus, electronic device, computer-readable storage medium, and computer program product for a vehicle that can improve the power supply efficiency of a hybrid powertrain.
In a first aspect, the present application provides a power supply method for a vehicle, including:
acquiring the electric quantity of a power battery of the vehicle in the running process;
if the electric quantity of the power battery meets the power system switching condition, acquiring vehicle parameters of the vehicle;
analyzing the running state of the vehicle based on the vehicle parameters, and determining the real-time running state of the vehicle;
and determining a power system matched with the real-time running state to supply power to the vehicle according to the real-time running state. In one embodiment, the vehicle parameters include vehicle speed and vehicle folded mass; analyzing the running state of the vehicle based on the vehicle parameters, determining the real-time running state of the vehicle, comprising: based on the vehicle speed and the vehicle folding quality, looking up a table to obtain the vehicle fuel injection quantity; based on the amount of fuel injected by the vehicle, a real-time operating state of the vehicle is determined.
In one embodiment, determining a real-time operating state of a vehicle based on an amount of fuel injected by the vehicle includes: if the fuel injection quantity of the automobile is larger than or equal to a preset fuel injection quantity threshold value, determining that the real-time running state of the automobile is a first load running state; if the fuel injection quantity of the automobile is smaller than a preset fuel injection quantity threshold value, determining that the real-time running state of the automobile is a second load running state; wherein the load of the first load operating state is higher than the load of the second load operating state.
In one embodiment, the real-time operating conditions of the vehicle include a first load operating condition and a second load operating condition, the first load operating condition having a higher load than the second load operating condition; according to the real-time running state, determining a power system matched with the real-time running state to supply power to the vehicle, including: when the real-time running state of the vehicle is a first load running state, determining an engine power generation system matched with the first load running state from a plurality of engine power generation systems to supply power to the vehicle; when the real-time running state of the vehicle is the second load running state, determining a fuel cell power generation system matched with the second load running state from a plurality of engine power generation systems to supply power to the vehicle.
In one embodiment, the power supply method of the vehicle further includes: acquiring a vehicle pedal signal, and determining the total required power of a system of the vehicle based on the vehicle pedal signal; under the condition that the power battery is used for supplying power to the vehicle, the current parameter and the voltage parameter of the power battery are adjusted so that the power output of the power battery meets the total required power of the system; in the case of supplying power to a vehicle by a fuel cell power generation system, the current parameter and the voltage parameter of the fuel cell power generation system are adjusted so that the power output of the fuel cell power generation system satisfies the total required power of the system.
In one embodiment, determining whether the power battery level satisfies a power system switching condition includes: and if the power battery electric quantity does not reach the set first battery electric quantity threshold value, determining that the power battery electric quantity meets the power system switching condition.
In one embodiment, the power supply method of the vehicle further includes: when the power battery level reaches a set second battery level threshold, control ends to power the vehicle based on the power system matching the real-time operating state.
In a second aspect, the present application further provides a power supply device for a vehicle, including:
the electric quantity acquisition module is used for acquiring the electric quantity of the power battery of the vehicle in the running process;
the vehicle parameter acquisition module is used for acquiring vehicle parameters of the vehicle if the electric quantity of the power battery meets the power system switching condition;
the running state determining module is used for analyzing the running state of the vehicle based on the vehicle parameters and determining the real-time running state of the vehicle;
and the power supply module is used for determining a power system matched with the real-time running state to supply power to the vehicle according to the real-time running state.
In a third aspect, the present application further provides an electronic device, including a memory storing a computer program and a processor implementing the steps of the power supply method of the vehicle when the processor executes the computer program.
In a fourth aspect, the present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described power supply method of a vehicle.
In a fifth aspect, the present application also provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of the above-described power supply method of a vehicle.
The power supply method, the device, the electronic equipment, the storage medium and the computer program product of the vehicle acquire the power of the power battery of the vehicle in the driving process; if the electric quantity of the power battery meets the power system switching condition, acquiring vehicle parameters of the vehicle; analyzing the running state of the vehicle based on the vehicle parameters, and determining the real-time running state of the vehicle; and determining a power system matched with the real-time running state to supply power to the vehicle according to the real-time running state. In the power supply process of the vehicle, whether the power system switching condition is met or not is determined based on the power battery electric quantity, vehicle parameters of the vehicle are obtained under the condition that the power system switching condition is determined to be met, and the real-time running state of the vehicle is determined based on the vehicle parameters, so that the power system matched with the real-time running state can be determined to supply power to the vehicle according to the real-time running state of the vehicle, and the power system matched with the real-time running state is selected to supply power to the vehicle, so that the power supply efficiency of the vehicle can be improved.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for a person having ordinary skill in the art.
FIG. 1 is a flow chart of a method of powering a vehicle in one embodiment;
FIG. 2 is a flow chart of a method of powering a vehicle in another embodiment;
FIG. 3 is a block diagram of a power supply apparatus of a vehicle in one embodiment;
FIG. 4 is a block diagram of a power supply system of a vehicle in one embodiment;
fig. 5 is an internal structural diagram of an electronic device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The power supply method of the vehicle, which is provided by the embodiment of the application, can be applied to electronic equipment, wherein the electronic equipment can be a controller on the vehicle, and particularly can be a power domain controller. When the power supply method of the vehicle is specifically realized, the power domain controller can acquire the electric quantity of the power battery of the vehicle in the running process; if the electric quantity of the power battery meets the power system switching condition, acquiring vehicle parameters of the vehicle; analyzing the running state of the vehicle based on the vehicle parameters, and determining the real-time running state of the vehicle; and determining a power system matched with the real-time running state to supply power to the vehicle according to the real-time running state. The power domain controller is an intelligent power assembly management unit and is mainly used for optimizing and controlling the power assembly.
In an exemplary embodiment, as shown in fig. 1, a power supply method for a vehicle is provided, and an example of application of the method to a power domain controller is described, including the following steps 102 to 108. Wherein:
step 102, obtaining the power battery electric quantity of the vehicle in the running process.
The power battery is a power source for providing power, and can be a storage battery for providing power for the vehicle. The power battery charge is the current charge of the power battery. Specifically, during a start-up phase of the vehicle, the power domain controller may send a power battery control signal to the power battery controller, which drives the power battery to power the vehicle based on the received power battery control signal. Meanwhile, the power battery controller can also acquire the power battery electricity quantity of the power battery in real time and send the power battery electricity quantity to the power domain controller.
And 104, if the electric quantity of the power battery meets the power system switching condition, acquiring vehicle parameters of the vehicle.
The power system switching condition is a condition set for judging whether to switch the power system for supplying power to the vehicle. The power system is a system for supplying power to the vehicle. The vehicle parameters are parameters which can be related to the running process of the vehicle, such as the vehicle speed, the opening degree of an accelerator pedal, the folding quality of the vehicle and the like, which are generated in the running process of various vehicles.
Specifically, the power domain controller may compare the obtained power battery power with a set battery power threshold, determine, according to a comparison result, whether the power battery meets a power system switching condition, and under a condition that the power system switching condition is met, obtain parameters such as a vehicle speed, a vehicle folding quality, and the like of the vehicle.
In some embodiments, the battery power threshold may be a value set within a preset threshold range, the preset range may be between 95% and 90%, the value may be 90%,95%, etc., and by setting the battery power threshold within the preset threshold range, system oscillation may be prevented.
In some embodiments, determining whether the power battery level satisfies a power system switching condition includes: and if the power battery electric quantity does not reach the set first battery electric quantity threshold value, determining that the power battery electric quantity meets the power system switching condition.
The power domain controller may set the first battery power threshold to 90%, and determine that the power battery power meets the power system switching condition when the power battery power does not reach the set 90%. The power domain controller may also set the first battery power threshold to 95%, and determine that the power battery power satisfies the power system switching condition when the power battery power does not reach the set 95%.
In some embodiments, the power system is a hybrid power system including a diesel power generation system, a hydrogen fuel cell power generation system, and a power cell system, each of which may be used alone to power a vehicle.
In some embodiments, when the current power generation system for supplying power to the vehicle is a power battery system and the power battery electric quantity meets the power system switching condition, one of the power generation systems can be selected from the diesel power generation system and the hydrogen fuel cell power generation system as a new power supply system, which one can be specifically selected to be combined with the vehicle parameters of the vehicle for determination, and the power supply efficiency can be effectively improved by combining the selection of the power generation system with the vehicle parameters.
In some embodiments, the hydrogen fuel cell power generation system is adapted for low load conditions of the vehicle, which may be conditions when the vehicle is at a low speed and the vehicle is on a downhill grade; the diesel engine power generation system is suitable for a high-load working condition of the vehicle, wherein the high-load working condition can be a working condition when the vehicle is at a high speed and the vehicle is on an ascending slope.
And 106, analyzing the running state of the vehicle based on the vehicle parameters, and determining the real-time running state of the vehicle according to the real-time running state.
The real-time running state is a load state of the vehicle, that is, whether the vehicle is running in a high load state or a low load state. Specifically, the power domain controller may analyze the operating state of the vehicle based on vehicle parameters to determine whether the vehicle is in a high load operating state or a low load operating state.
And step 108, determining a power system matched with the real-time running state to supply power to the vehicle according to the real-time running state.
Specifically, if in a high load operating condition, the power domain controller may select a powertrain that matches the high load operating condition to power the vehicle. If in the low load operating condition, the power domain controller may select a power system that matches the low load operating condition to power the vehicle.
In the power supply method of the vehicle, the electric quantity of a power battery of the vehicle in the running process is obtained; if the electric quantity of the power battery meets the power system switching condition, acquiring vehicle parameters of the vehicle; analyzing the running state of the vehicle based on the vehicle parameters, and determining the real-time running state of the vehicle; and determining a power system matched with the real-time running state to supply power to the vehicle according to the real-time running state. In the power supply process of the vehicle, whether the power system switching condition is met or not is determined based on the power battery electric quantity, vehicle parameters of the vehicle are obtained under the condition that the power system switching condition is determined to be met, and the real-time running state of the vehicle is determined based on the vehicle parameters, so that the power system matched with the real-time running state can be determined to supply power to the vehicle according to the real-time running state of the vehicle, and the power system matched with the real-time running state is selected to supply power to the vehicle, so that the power supply efficiency of the vehicle can be improved.
In one exemplary embodiment, the vehicle parameters include vehicle speed and vehicle fold-over mass; analyzing the running state of the vehicle based on the vehicle parameters, determining the real-time running state of the vehicle, comprising: based on the vehicle speed and the vehicle folding quality, looking up a table to obtain the vehicle fuel injection quantity; based on the amount of fuel injected by the vehicle, a real-time operating state of the vehicle is determined.
Wherein the vehicle fold-over mass is the apparent weight of the vehicle, which can be related to the dead weight of the vehicle, the people and goods on the vehicle, and the driving conditions of the vehicle, such as whether the vehicle is traveling uphill, downhill, or on flat ground, etc.; there is a correlation between the vehicle speed, the vehicle folding mass and the vehicle fuel injection quantity, namely, each group of vehicle speed and vehicle folding mass is corresponding to the matched vehicle fuel injection quantity.
Specifically, the power domain controller can obtain the real-time speed of the vehicle and the vehicle folding mass, obtain the automobile fuel injection quantity corresponding to the real-time speed and the vehicle folding mass through a table lookup, and determine the real-time running state of the vehicle based on the automobile fuel injection quantity. The power domain controller can build association relation tables of different real-time vehicle speeds, vehicle folding masses and vehicle folding masses in advance according to the different real-time vehicle speeds and vehicle folding masses.
In this embodiment, the power domain controller may directly obtain the fuel injection amount of the vehicle based on the real-time vehicle speed and the vehicle folding quality lookup table, and further determine the real-time running state of the vehicle based on the fuel injection amount of the vehicle, so as to determine the real-time running state of the vehicle more efficiently and accurately.
In one exemplary embodiment, determining a real-time operating state of a vehicle based on an amount of fuel injected by the vehicle includes: if the fuel injection quantity of the automobile is larger than or equal to a preset fuel injection quantity threshold value, determining that the real-time running state of the automobile is a first load running state; if the fuel injection quantity of the automobile is smaller than a preset fuel injection quantity threshold value, determining that the real-time running state of the automobile is a second load running state; wherein the load of the first load operating state is higher than the load of the second load operating state.
The preset fuel injection amount threshold is a set threshold for judging the load state of the vehicle, and the setting of the preset fuel injection amount threshold can be adaptively set in combination with the self-performance, the running state and the like of the vehicle, for example, the preset fuel injection amount threshold can be set to 80%, 85% and the like.
Specifically, the power domain controller may compare the vehicle fuel injection amount obtained by the lookup table with a preset fuel injection amount threshold set, for example, to 85%. When the automobile oil injection quantity obtained by the table lookup is less than 85%, the power domain controller determines that the real-time running state of the vehicle is a second load running state, and when the automobile oil injection quantity obtained by the table lookup is more than or equal to 85%, the power domain controller determines that the real-time running state of the vehicle is a first load running state, wherein the load of the first load running state is higher than that of the second load running state, namely the first load running state is a high load running state, and the second load running state is a low load running state.
In this embodiment, the power domain controller compares the fuel injection quantity of the automobile obtained by looking up the table with a preset fuel injection quantity threshold value, so as to quickly and accurately determine whether the real-time running state of the vehicle is the first load running state or the second load running state.
In one exemplary embodiment, the real-time operating conditions of the vehicle include a first load operating condition and a second load operating condition, the first load operating condition having a higher load than the second load operating condition; according to the real-time running state, determining a power system matched with the real-time running state to supply power to the vehicle, including: when the real-time running state of the vehicle is a first load running state, determining an engine power generation system matched with the first load running state from a plurality of engine power generation systems to supply power to the vehicle; when the real-time running state of the vehicle is the second load running state, determining a fuel cell power generation system matched with the second load running state from a plurality of engine power generation systems to supply power to the vehicle.
The first load operation state is a high load operation state of the vehicle, and the second load operation state is a low load operation state of the vehicle. The plurality of engine power generation systems may include a diesel power generation system, a hydrogen fuel cell power generation system, a power cell system, and the like.
In some embodiments, the power domain controller may select the hydrogen fuel cell power generation system to power the vehicle while the vehicle is in a low load operating state while the hydrogen fuel cell power generation system remains in an efficient operating region. When the automobile is in a high-load running state, the diesel engine power generation system is always kept in a high-efficiency running area, the diesel engine works at the lowest oil consumption point, and the power domain controller can select the diesel engine power generation system to supply power to the automobile. In this embodiment, the power domain controller combines the load state of the vehicle, selects the power generation system matched with the load state from the plurality of engine power generation systems to supply power to the vehicle, so that the power supply efficiency of the vehicle can be effectively improved.
In one exemplary embodiment, the power supply method of the vehicle further includes: acquiring a vehicle pedal signal, and determining the total required power of a system of the vehicle based on the vehicle pedal signal; under the condition that the power battery is used for supplying power to the vehicle, the current parameter and the voltage parameter of the power battery are adjusted so that the power output of the power battery meets the total required power of the system; in the case of supplying power to a vehicle by a fuel cell power generation system, the current parameter and the voltage parameter of the fuel cell power generation system are adjusted so that the power output of the fuel cell power generation system satisfies the total required power of the system.
The total required power of the system is the total power required in the running process of the vehicle, and the total required power of the system can be specifically the target power for ensuring the driving requirement of a driver. The driver can adjust the opening of the accelerator pedal according to the vehicle speed to realize the running targets of acceleration, deceleration and running, and the total required power of the system has a corresponding relation with the opening of the accelerator pedal, namely, the total required power of the system can be determined through the opening of the accelerator pedal.
In some embodiments, the system demand power may be determined jointly by the diesel engine split power, the fuel cell engine split power, and the power cell split power, where the system demand power is the sum of the diesel engine split power, the fuel cell engine split power, and the power cell split power when the system demand power is determined jointly by the diesel engine split power, the fuel cell engine split power, and the power cell split power.
In some embodiments, the system demand power may also be determined solely by the diesel engine split power, the fuel cell engine split power, and the power cell split power, i.e., the vehicle is powered solely by the engine power generation system, the system demand power being determined by the diesel engine split power; the vehicle is powered only by the fuel cell power generation system, and the system required power is determined by the power distribution of the fuel cell engine; the vehicle is powered only by the power cell power generation system, and the system demand power is determined by the power cell distribution power.
In some embodiments, where the vehicle is powered by a power cell, the power domain controller may adjust the power output of the power cell by current and voltage parameters of the power cell so that the power cell output reaches the total required power of the system as much as possible. Under the condition that the vehicle is powered by the fuel cell power generation system, the power domain controller can adjust the power output of the fuel cell power generation system through the current parameter and the voltage parameter of the fuel cell, so that the output of the fuel cell power generation system reaches the total required power of the system as much as possible, and the target power required by the driver in driving is ensured.
In this embodiment, when the vehicle is powered by the power battery or the fuel cell power generation system, the power domain controller may adjust the power output of the power generation system through the current parameter and the voltage parameter, so as to ensure the target power required by the driver for driving.
In one exemplary embodiment, when the power battery level reaches a set second battery level threshold, control ends to power the vehicle based on the power system matching the real-time operating condition.
The second battery power threshold is a threshold set for judging whether to end power supply to the vehicle based on the diesel engine power generation system or the fuel cell power generation system. The power domain controller can acquire the power battery electric quantity in real time, and compare the power battery electric quantity acquired in real time with a second battery electric quantity threshold value, and then execute the shutdown action. The second battery power threshold may be a value within a preset threshold range, the preset range may be between 90% and 100%, the value may be 90%,95%, etc.
In this embodiment, when the power domain controller determines that the power battery power reaches the second battery power threshold, the power generation of both the diesel engine power generation system and the fuel cell power generation system is stopped. Through the coordination and cooperation of the power supply systems, the optimal system efficiency is ensured.
In one embodiment, as shown in fig. 2, a flow chart of a power supply method of a vehicle is shown:
the power supply system of the vehicle according to the present embodiment is a hybrid power system, and may be applied to a mobile vehicle and is mainly used for a heavy tractor. The vehicle operation is mainly divided into three phases: starting, running and stopping.
A starting stage: when the power domain controller receives the starting signal, the system electric energy is supplied by the power battery at the moment, and the starting of the vehicle and the initial acceleration state of the vehicle are completed; meanwhile, the power battery provides starting electric energy for the fuel system and the diesel engine power generation system, such as the necessary electric power requirements of air compressor starting, diesel engine starter starting and the like, and the power battery controller monitors the electric quantity of the power battery in real time.
And (3) an operation stage: when the vehicle is running normally, the electric quantity of the power battery is gradually consumed, and when the electric quantity is smaller than a threshold value theta-alpha, wherein theta is the percentage of the electric quantity of the battery, 100% of the electric quantity is the full state of the battery, and alpha is about 5% -10% for preventing the system from vibrating. And the power battery controller informs the power domain controller of the state through the CAN bus, and the built-in algorithm program of the power domain controller analyzes and calculates the current running state and working condition of the vehicle to obtain a system power distribution scheme.
Wherein P is total For the total required power (kW) of the system, the value is the target value for ensuring the driving requirement of the driver, a power feedback system is established together with the driver, namely the driver adjusts the opening of an accelerator pedal according to the speed of the vehicle to realize the driving targets of acceleration, deceleration and running, P total Corresponding to the opening degree of the accelerator pedal through map calibration.
f d(soc,v,m) In order to ensure that the diesel engine is always kept in a high-efficiency operation area, in the power supply method of the vehicle provided by the embodiment of the application, only the diesel engine is enabled to work at the lowest oil consumption point, and an algorithm in the power domain controller determines whether the current state is in a heavy-load operation state according to the battery electric quantity soc, the vehicle speed v and the reduced mass m, so that whether the diesel engine is started to generate electricity is determined.
In order to ensure that the fuel cell is always kept in a high-efficiency operation area, in the power supply method of the vehicle provided by the embodiment of the application, the fuel cell is required to operate in a small load state, an algorithm in a power domain controller determines whether the current state is in a small load operation state requirement according to the battery electric quantity soc, the vehicle speed v and the reduced mass m, and the power state of the system is regulated in a closed loop through the voltage Uh and the current Ih of the fuel cell.
For power battery power (kW), the power level SOC is accurately calculated mainly by the power battery controller.
When the electric quantity of the power battery gradually increases and exceeds the threshold value theta, the diesel power generation system or the fuel cell power generation system stops running.
And (3) stopping: the shutdown signal is transmitted to the power domain controller through a CAN (Controller Area Network, local area network control bus) bus, the power domain controller at the moment will call the battery electric quantity information of the power battery controller, if the battery electric quantity information exceeds a certain threshold value theta, the shutdown action is executed, if the battery electric quantity information is lower than the threshold value theta, the power generation is continued through the fuel cell power generation system until the electric quantity exceeds theta+beta (beta is about 5% -10%). Wherein, the value of θ can be 90%, 85% equivalent.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the application also provides a power supply device of a vehicle for realizing the power supply method of the vehicle. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the power supply device for one or more vehicles provided below may be referred to the limitation of the power supply method for the vehicle hereinabove, and will not be repeated here.
In an exemplary embodiment, as shown in fig. 3, there is provided a power supply apparatus 300 of a vehicle, including: the system comprises an electric quantity acquisition module, a vehicle parameter acquisition module, an operation state determination module and a power supply module, wherein:
the electric quantity acquisition module 302 is configured to acquire an electric quantity of a power battery of the vehicle during a driving process.
The vehicle parameter obtaining module 304 is configured to obtain a vehicle parameter of the vehicle if the power of the power battery meets the power system switching condition.
The running state determining module 306 is configured to analyze the running state of the vehicle based on the vehicle parameters and determine a real-time running state of the vehicle.
The power supply module 308 is configured to determine, according to the real-time running state, a power system that matches the real-time running state to supply power to the vehicle. In one embodiment, the vehicle parameters include vehicle speed and vehicle folded mass; the running state determining module 306 is further configured to obtain an automobile fuel injection amount by looking up a table based on the vehicle speed and the vehicle folding quality; based on the amount of fuel injected by the vehicle, a real-time operating state of the vehicle is determined.
In one embodiment, the running state determining module 306 is further configured to determine that the real-time running state of the vehicle is the first load running state if the fuel injection amount of the vehicle is greater than or equal to the preset fuel injection amount threshold; if the fuel injection quantity of the automobile is smaller than a preset fuel injection quantity threshold value, determining that the real-time running state of the automobile is a second load running state; wherein the load of the first load operating state is higher than the load of the second load operating state.
In one embodiment, the real-time operating conditions of the vehicle include a first load operating condition and a second load operating condition, the first load operating condition having a higher load than the second load operating condition; the power supply module 308 is further configured to determine, from the plurality of engine power generation systems, that the engine power generation system that matches the first load operation state supplies power to the vehicle when the real-time operation state of the vehicle is the first load operation state; when the real-time running state of the vehicle is the second load running state, determining a fuel cell power generation system matched with the second load running state from a plurality of engine power generation systems to supply power to the vehicle.
In one embodiment, the power supply device of the vehicle further includes a power adjustment module; the power adjusting module is used for acquiring a vehicle pedal signal and determining the total required power of a system of the vehicle based on the vehicle pedal signal; under the condition that the power battery is used for supplying power to the vehicle, the current parameter and the voltage parameter of the power battery are adjusted so that the power output of the power battery meets the total required power of the system; in the case of supplying power to a vehicle by a fuel cell power generation system, the current parameter and the voltage parameter of the fuel cell power generation system are adjusted so that the power output of the fuel cell power generation system satisfies the total required power of the system.
In one embodiment, the power supply device of the vehicle further includes a power system switching condition judgment module; and the power system switching condition judging module is used for determining that the power battery electric quantity meets the power system switching condition if the power battery electric quantity does not reach the set first battery electric quantity threshold value.
In one embodiment, the power module 308 is further configured to, when the power battery level reaches a set second battery level threshold, control ends to power the vehicle based on the power system matching the real-time operating condition. The respective modules in the power supply device of the vehicle described above may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or independent of a processor in the electronic device, or may be stored in software in a memory in the electronic device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, as shown in fig. 4, the present application provides a diesel-hydrogen hybrid power system comprising: the diesel engine 1 has a main mechanism including: a diesel engine air inlet system 1.1, a diesel engine oil supply system 1.2, a diesel engine cooling system 1.3, a generator 2 and an engine controller 3; also included is a fuel cell engine 4 whose main mechanism includes: a hydrogen supply system 4.1, an air system 4.2, a hydrothermal system 4.3 and a fuel cell controller 5; the device also comprises a power battery 6 and a power battery controller 7; and further comprises a power domain controller 8, a high-voltage bus 9, an inverter 10, a driving motor 11, a CAN bus 12 and a vehicle accelerator pedal 13.
The composite power system is provided with three power supply systems, namely a diesel engine power generation system, a hydrogen fuel cell power generation system and a power cell system, wherein the three power generation systems adopt a parallel connection mode, and any one power generation system can independently generate power; the power domain controller is used as a central computing unit to mainly perform power distribution computation; the engine controller, the fuel cell controller and the power cell controller are only responsible for driving and signal processing, and have small volume and low cost; the power distribution algorithm adopts a model+map calibration mode, and the hysteresis control mode is utilized to keep the optimal system efficiency and stable operation under the condition of ensuring the normal switching of the power generation system.
The diesel engine 1 has the core components of an air inlet system 1.1, an oil supply system 1.2 and a cooling and lubricating system 1.3 which are weakened in structural strength, so that the manufacturing cost can be greatly reduced. The diesel engine controller 3, the main chip is not responsible for complex calculations, and only receives instructions to be responsible for engine driving operations. The generator 2 has a generated power that meets the maximum power requirement of the vehicle power system.
The power of the fuel cell 4 is small, and the generated power meets the maximum power requirement of the vehicle power system by 50%; the core components of the fuel cell comprise a hydrogen supply system 4.1, an air system 4.2 and a hydrothermal system 4.3, and the structural strength of each system is weakened, so that the manufacturing cost can be greatly reduced.
The power battery 6 and the power battery controller 7, the power battery is used for initializing and starting the power generation system in the system starting stage, and the electric quantity of the power battery can always meet the vehicle starting requirement.
The power domain controller 8 has no driving function, but has a strong computing power, and can handle complex operations. The high-voltage bus 9, the inverter 10, the driving motor 11, the diesel engine power generation system, the fuel cell power generation system and the power battery are connected to the high-voltage bus, and can independently drive the motor to do work through the inverter. The CAN bus 12 and the accelerator pedal 13, and pedal opening signals are directly transmitted to the power domain controller 8 through CAN signal conversion.
In one embodiment, an electronic device is provided, which may be a controller on a vehicle. The internal structure thereof can be shown in fig. 5. The electronic device includes a processor, memory, input/output interfaces, etc. The memory is connected with the processor, and the processor is connected with the input/output interface. Wherein the processor of the electronic device is configured to provide computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The nonvolatile storage medium stores a computer program. The internal memory provides an environment for the execution of computer programs in the non-volatile storage medium. The input/output interface of the processor is used to exchange information between the processor and other electronic devices. The computer program is executed by a processor to implement a method of powering a vehicle.
It will be appreciated by those skilled in the art that the structure shown in fig. 5 is merely a block diagram of a portion of the structure associated with the present application and is not limiting of the electronic device to which the present application is applied, and that a particular electronic device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, an electronic device is provided that includes a memory having a computer program stored therein and a processor that when executing the computer program performs the steps of the power supply method of a vehicle described above.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, implements the steps of the power supply method of a vehicle described above.
In an embodiment, a computer program product is provided comprising a computer program which, when executed by a processor, implements the steps of the above-described vehicle power supply method.
It should be noted that, the user information (including, but not limited to, user equipment information, user personal information, etc.) and the data (including, but not limited to, data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party, and the collection, use, and processing of the related data are required to meet the related regulations.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.
Claims (10)
1. A method of powering a vehicle, the method comprising:
acquiring the electric quantity of a power battery of the vehicle in the running process;
if the electric quantity of the power battery meets the power system switching condition, acquiring vehicle parameters of the vehicle;
analyzing the running state of the vehicle based on the vehicle parameters, and determining the real-time running state of the vehicle;
and determining a power system matched with the real-time running state to supply power to the vehicle according to the real-time running state.
2. The method of claim 1, wherein the vehicle parameters include vehicle speed and vehicle fold-over mass;
the analyzing the running state of the vehicle based on the vehicle parameters, determining the real-time running state of the vehicle includes:
based on the vehicle speed and the vehicle folding mass, looking up a table to obtain the fuel injection quantity of the vehicle;
and determining the real-time running state of the vehicle based on the automobile fuel injection quantity.
3. The method of claim 2, wherein the determining the real-time operating state of the vehicle based on the vehicle fuel injection amount comprises:
if the automobile fuel injection quantity is larger than or equal to a preset fuel injection quantity threshold value, determining that the real-time running state of the vehicle is a first load running state;
if the automobile oil injection quantity is smaller than the preset oil injection quantity threshold value, determining that the real-time running state of the vehicle is a second load running state; wherein the load of the first load operating state is higher than the load of the second load operating state.
4. The method of claim 1, wherein the real-time operating conditions of the vehicle include a first load operating condition and a second load operating condition, the first load operating condition having a higher load than the second load operating condition;
the determining, according to the real-time running state, that the power system matched with the real-time running state supplies power to the vehicle includes:
when the real-time running state of the vehicle is the first load running state, determining an engine power generation system matched with the first load running state from a plurality of engine power generation systems to supply power to the vehicle;
and when the real-time running state of the vehicle is the second load running state, determining a fuel cell power generation system matched with the second load running state from a plurality of engine power generation systems to supply power to the vehicle.
5. The method according to claim 1, wherein the method further comprises:
acquiring a vehicle pedal signal, and determining the total required power of a system of the vehicle based on the vehicle pedal signal;
under the condition that a vehicle is powered by a power battery, the current parameter and the voltage parameter of the power battery are regulated so that the power output of the power battery meets the total required power of the system;
in the case of powering a vehicle by a fuel cell power generation system, the current and voltage parameters of the fuel cell power generation system are adjusted so that the power output of the fuel cell power generation system meets the total required power of the system.
6. The method of claim 1, wherein determining whether the power battery level satisfies a power system switching condition comprises:
and if the power battery electric quantity does not reach the set first battery electric quantity threshold value, determining that the power battery electric quantity meets the power system switching condition.
7. The method according to claim 1, wherein the method further comprises:
and when the power battery electric quantity reaches a set second battery electric quantity threshold value, ending the control to supply power to the vehicle based on the power system matched with the real-time running state.
8. A power supply device for a vehicle, the device comprising:
the electric quantity acquisition module is used for acquiring the electric quantity of the power battery of the vehicle in the running process;
the vehicle parameter acquisition module is used for acquiring vehicle parameters of the vehicle if the electric quantity of the power battery meets the power system switching condition;
the running state determining module is used for analyzing the running state of the vehicle based on the vehicle parameters and determining the real-time running state of the vehicle;
and the power supply module is used for determining a power system matched with the real-time running state to supply power to the vehicle according to the real-time running state.
9. An electronic device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any one of claims 1 to 7 when the computer program is executed.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 7.
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| CN117984813A (en) * | 2024-04-03 | 2024-05-07 | 山东科技大学 | Vehicle diesel-hydrogen composite power device and arrangement method thereof |
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| CN117984813A (en) * | 2024-04-03 | 2024-05-07 | 山东科技大学 | Vehicle diesel-hydrogen composite power device and arrangement method thereof |
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