CN117104027A

CN117104027A - Range-extending power system of hydrogen internal combustion engine, control method and automobile

Info

Publication number: CN117104027A
Application number: CN202311092471.5A
Authority: CN
Inventors: 李潜; 汤雪林; 胡铁刚; 杨志勇; 邵显龙
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2023-11-24

Abstract

The application relates to a range-extending power system of a hydrogen internal combustion engine, a control method and an automobile, wherein the system comprises the following components: the device comprises a hydrogen internal combustion engine, a range extender generator, a motor controller, a power battery and a driving motor; the hydrogen internal combustion engine is mechanically connected with the range extender generator, is used for driving the range extender generator to generate power and supplying power to a power battery and/or a driving motor in a range extender power system of the hydrogen internal combustion engine under the target operation condition that any one of the hydrogen internal combustion engine is in an operation state, and operates according to an excessive air coefficient; the motor controller is electrically connected with the range extender generator, the driving motor and the power battery respectively and is used for controlling the power generation of the range extender generator, the power output for transmitting power to the driving motor and the charging power for charging the power battery. According to the application, under the condition of reducing the working load of the supercharger, the power performance equivalent to that of a gasoline engine can be achieved, and the emission of nitrogen oxides can be reduced.

Description

Range-extending power system of hydrogen internal combustion engine, control method and automobile

Technical Field

The invention relates to the technical field of automobile power, in particular to a range-extending power system of a hydrogen internal combustion engine, a control method and an automobile.

Background

Under the background of carbon neutralization, hydrogen energy is an ideal clean fuel, and a hydrogen internal combustion engine becomes one of the 'zero carbon' solutions in the traffic field due to the characteristic of zero carbon emission, and is widely studied by automobile enterprises and research institutions at home and abroad.

Considering that the equivalent air-fuel ratio of a hydrogen internal combustion engine is 34.5, which is more than 2 times of the equivalent air-fuel ratio of a gasoline engine, the power performance of the hydrogen internal combustion engine is generally inferior to that of the gasoline engine, so that in order to achieve the same power performance as the gasoline engine, a supercharger needs to press more air into the internal combustion engine than the gasoline engine. In addition, the hydrogen internal combustion engine has higher nitrogen oxide (NOx) emission when the equivalent air-fuel ratio or the slightly lean mixture is combusted, and cannot meet the requirement of emission regulations, so that the lean combustion is required to realize lower NOx emission, and the working load of the supercharger is further increased.

As can be seen from the above, the hydrogen internal combustion engine of the related art has the above-described technical problems as a power source.

Disclosure of Invention

The invention aims to provide a range-extending power system of a hydrogen internal combustion engine, which aims to solve at least one technical problem in the prior art; the second purpose is to provide a control method of the range-extending power system of the hydrogen internal combustion engine; the third object is to provide a control device for a range-extending power system of a hydrogen internal combustion engine, the fourth object is to provide an electronic device, the fifth object is to provide an automobile, and the sixth object is to provide a storage medium.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

a hydrogen internal combustion engine range-extending power system comprising: the device comprises a hydrogen internal combustion engine, a range extender generator, a motor controller, a power battery and a driving motor;

the hydrogen internal combustion engine is mechanically connected with the range extender generator, is used for driving the range extender generator to generate power and supplying power to the power battery and/or a driving motor in a range extender power system of the hydrogen internal combustion engine under any target operation working condition that the hydrogen internal combustion engine is in an operation state, and operates according to an excessive air coefficient;

the motor controller is respectively and electrically connected with the range extender generator, the driving motor and the power battery and is used for controlling the power generation power of the range extender generator, the output power for transmitting power to the driving motor and the charging power for charging the power battery.

According to the range-extending power system of the hydrogen internal combustion engine, the hydrogen internal combustion engine is mechanically connected with the range-extending power generator, so that the hydrogen internal combustion engine is used for driving the range extender power generator to generate power and supplying power to the power battery and/or a driving motor in the range-extending power system of the hydrogen internal combustion engine, and therefore the hydrogen internal combustion engine in the embodiment only needs to drive the range extender power generator to generate power, and under the condition that the hydrogen internal combustion engine does not need to achieve the equivalent power performance of a gasoline engine, namely, under the condition that a supercharger does not need to work under high load, the driving motor can still be controlled through the motor controller, so that the driving motor can achieve the equivalent power performance of the gasoline engine; and, the hydrogen internal combustion engine is operated according to the excess air ratio, so that the emission of nitrogen oxides can be reduced; furthermore, by the range-extending power system of the hydrogen internal combustion engine, the aim of reducing the emission of nitrogen oxides can be achieved under the condition of reducing the working load of the supercharger, and the power performance equivalent to that of a gasoline engine can be achieved.

Optionally, the hydrogen internal combustion engine range-extending power system as described above further comprises: a vehicle-mounted charger and a reduction gearbox;

the power battery is electrically connected with the vehicle-mounted charger and is used for receiving charging through the vehicle-mounted charger;

the reduction gearbox is mechanically connected with the driving motor and the wheels.

Through the system of this embodiment, through setting up the reducing gear box to can retrieve the wheel mechanical energy, and can charge power battery through on-vehicle machine that charges.

Optionally, a hydrogen internal combustion engine range extending power system as described above:

in the front-drive vehicle type, a generator controller and a driving motor controller in the motor controller are integrally arranged;

in the rear-drive vehicle type, the generator controller and the driving motor controller in the motor controller are arranged in a split type.

By the system of the embodiment, different motor controllers are arranged for different vehicle types, so that the cost can be optimally controlled.

According to still another aspect of the embodiment of the present application, there is also provided a method for controlling a range-extending power system of a hydrogen internal combustion engine, including:

acquiring the current required power of a target vehicle; acquiring the current state of charge of a power battery in a hydrogen internal combustion engine range-extending power system of the target vehicle;

Determining a target operation condition of a range-extending power system of the hydrogen internal combustion engine and an energy flow mode of the range-extending power system of the hydrogen internal combustion engine according to the current required power and the current charge state, wherein the hydrogen internal combustion engine is used for driving a range extender generator to generate power and supplying power to the power battery and/or a driving motor in the range-extending power system of the hydrogen internal combustion engine under any one of the target operation conditions that the hydrogen internal combustion engine is in an operation state, the hydrogen internal combustion engine operates according to an excessive air coefficient, and the energy flow mode is used for indicating a circulation path of electric energy in the target vehicle;

and controlling the range-extending power system of the hydrogen internal combustion engine according to the target operation condition and the energy flow mode.

According to the method, the hydrogen internal combustion engine is used for driving the range extender generator to generate power and supplying power to the power battery and/or the driving motor in the range extender power system of the hydrogen internal combustion engine, so that the hydrogen internal combustion engine in the embodiment only needs to drive the range extender generator to generate power, and the driving motor can still be controlled through the motor controller under the condition that the hydrogen internal combustion engine does not need to achieve the equivalent power performance of the gasoline engine, namely, the supercharger does not need to work under the high load, so that the driving motor can achieve the equivalent power performance of the gasoline engine; and, the hydrogen internal combustion engine is operated according to the excess air ratio, so that the emission of nitrogen oxides can be reduced; furthermore, by the range-extending power system of the hydrogen internal combustion engine, the aim of reducing the emission of nitrogen oxides can be achieved under the condition of reducing the working load of the supercharger, and the power performance equivalent to that of a gasoline engine can be achieved.

Optionally, the method for controlling the range-extending power system of the hydrogen internal combustion engine, wherein the step of obtaining the current required power of the target vehicle includes:

acquiring an opening signal of an accelerator pedal of a target vehicle;

judging the target power of the target vehicle according to the opening signal;

the current demand power is determined by dividing the target power by a product of motor controller efficiency, drive motor efficiency, and reduction gearbox efficiency in the target vehicle.

By the method of the embodiment, an implementation mode capable of determining the current required power of the target vehicle is provided.

Optionally, in the foregoing hydrogen internal combustion engine range-extending power system, the determining, according to the current required power and the current state of charge, a target operating condition of the hydrogen internal combustion engine range-extending power system and an energy flow mode of the hydrogen internal combustion engine range-extending power system includes:

acquiring the current running state of a target vehicle;

determining that the target vehicle enters a parking idle state when the current required power is 0, the current running state indicates the speed of the target vehicle to be 0, the current state is between a lowest state of charge value and a lower limit state of charge value, the target running condition is that a hydrogen internal combustion engine in a range-increasing power system of the hydrogen internal combustion engine runs at an idle working condition working point, the energy flow mode is a first energy flow mode, wherein the lowest state of charge value is a minimum charge value of a power battery when the electric quantity detection accuracy of the power battery meets a preset accuracy requirement, the lower limit state of charge value is a minimum charge value of the power battery capable of meeting the power requirement of the target vehicle, the lowest state of charge value is smaller than the lower limit state of charge value, the excess air coefficient of the hydrogen internal combustion engine when the hydrogen internal combustion engine runs at the idle working condition working point is between 1.2 and 3.2, and the first energy flow mode is that the electric energy generated by running of the hydrogen internal combustion engine is charged by the power battery;

Determining that the target vehicle enters a parking stop state when the current required power is 0, the current running state indicates that the speed of the target vehicle is 0, and the current state of charge is greater than a lower limit state of charge value;

and when the current required power is 0, the current running state indicates that the speed of the target vehicle is not 0, and the current state of charge is larger than a lower limit state of charge value, the target vehicle is determined to enter an energy recovery state, the target running condition is that the hydrogen internal combustion engine is not running, an energy recovery subsystem in a range-extending power system of the hydrogen internal combustion engine runs, and the energy flow mode is a second energy flow mode, wherein the second energy flow mode is electric energy recovered through the energy recovery subsystem and charges the power battery.

By the method, the target operation condition and the energy flow mode of the vehicle can be determined when the required power is 0 and the vehicle is in a moving or stopping state.

Optionally, in the foregoing method for controlling a range-extending power system of a hydrogen internal combustion engine, the determining, according to the current required power and the current state of charge, a target operating condition of the range-extending power system of the hydrogen internal combustion engine and an energy flow mode of the range-extending power system of the hydrogen internal combustion engine includes:

Judging whether the current state of charge is higher than an upper limit state of charge value or not under the condition that the current required power is greater than 0, wherein the upper limit state of charge value is used for indicating a maximum charge value of the power battery for quick charge;

judging whether the current required power is larger than the discharging power of the power battery or not under the condition that the current charge state is higher than an upper limit charge state value;

and under the condition that the current required power is less than or equal to the discharge power, the target operation condition is that the hydrogen internal combustion engine is not operated, the power battery is in discharge operation, and the energy flow mode is a third energy flow mode, wherein the third energy flow mode is as follows: supplying power to the driving motor only through the power battery;

and under the condition that the current required power is determined to be larger than the discharge power, the target operation working condition is that a hydrogen internal combustion engine in a range-increasing power system of the hydrogen internal combustion engine operates at a high-speed cruising target operation working condition point, the energy flow mode is a fourth energy flow mode, wherein the excessive air coefficient of the hydrogen internal combustion engine when the hydrogen internal combustion engine operates at the high-speed cruising target operation working condition point is between 1.6 and 2.4, and the fourth energy flow mode is that the electric energy generated by the operation of the hydrogen internal combustion engine supplies power to the driving motor.

By the method of the embodiment, under the condition that the current state of charge is higher than the upper limit state of charge value, the target operation condition and the energy flow mode of the vehicle can be respectively determined when the current required power is determined to be smaller than or equal to the discharge power and when the current required power is determined to be larger than the discharge power.

judging whether the current state of charge is greater than a lower limit state of charge value and less than or equal to an upper limit state of charge value under the condition that the current required power is not 0, wherein the lower limit state of charge value is a minimum charge value of the power battery capable of meeting the power requirement of the target vehicle, and the upper limit state of charge value is used for indicating a maximum charge value of the power battery for quick charge;

in the event that it is determined that the current state of charge is greater than a lower limit state of charge value and less than or equal to an upper limit state of charge value, performing at least one of the following:

When the current required power is determined to be less than or equal to the discharge power of the power battery, the target operation condition is that the hydrogen internal combustion engine is not operated, the power battery is in discharge operation, and the energy flow mode is a third energy flow mode, wherein the third energy flow mode is as follows: supplying power to the driving motor only through the power battery;

when the current required power is determined to be greater than the maximum power of an economical operation area, the target operation working condition is that a hydrogen internal combustion engine in a range-extending power system of the hydrogen internal combustion engine operates at a high-speed cruising target operation working condition point, the energy flow mode is a fifth energy flow mode, wherein the maximum power of the economical operation area is greater than the discharge power, the excess air ratio of the hydrogen internal combustion engine during operation at the high-speed cruising target operation working condition point is between 1.7 and 2.3, and the fifth energy flow mode is that the electric energy generated by the operation of the hydrogen internal combustion engine simultaneously supplies power to the driving motor and charges the power battery;

when the current required power is determined to be less than or equal to the maximum power of an economic operation area and greater than the difference between the maximum power of the economic operation area and the chargeable power of the power battery, the target operation working condition is that a hydrogen internal combustion engine in a range-increasing power system of the hydrogen internal combustion engine operates at the maximum power point of the economic operation area, the energy flow mode is the fifth energy flow mode, and the excess air coefficient of the hydrogen internal combustion engine when operating at the maximum power point of the economic operation area is between 1.9 and 2.2;

When the current required power is determined to be smaller than or equal to a first maximum power value and larger than the difference between the second power of the economical operation area and the chargeable power, the target operation working condition is that the hydrogen internal combustion engine in the range-increasing power system of the hydrogen internal combustion engine operates at the second power point of the economical operation area, the energy flow mode is the fifth energy flow mode, wherein the first maximum power value is the difference between the maximum power of the economical operation area and the chargeable power and the maximum value in the second power of the economical operation area, and the excess air coefficient of the hydrogen internal combustion engine during the operation at the second power point of the economical operation area is between 2.2 and 2.6;

when the current required power is determined to be smaller than or equal to a second maximum power value and larger than the difference between the third power of the economical operation area and the chargeable power, the target operation working condition is that the hydrogen internal combustion engine in the range-increasing power system of the hydrogen internal combustion engine operates at the third power point of the economical operation area, the energy flow mode is a fifth energy flow mode, wherein the second maximum power value is the maximum value of the difference between the second power of the economical operation area and the chargeable power and the third power of the economical operation area, and the excess air coefficient of the hydrogen internal combustion engine during the operation at the third power point of the economical operation area is between 1.9 and 2.2;

And under the condition that the current required power is less than or equal to a third maximum power value, the target operation condition is that the hydrogen internal combustion engine in the hydrogen internal combustion engine range-extending power system operates at an economic operation area minimum power point, the energy flow mode is a fifth energy flow mode, wherein the third maximum power value is the difference between three powers and chargeable powers in the economic operation area and the maximum value in the economic operation area minimum power, and the air excess coefficient of the hydrogen internal combustion engine when operating at the economic operation area minimum power point is between 1.9 and 2.2.

By the method, the target running conditions and the energy flow modes of the vehicle under different conditions can be determined under the condition that the current state of charge is larger than the lower limit state of charge value and smaller than or equal to the upper limit state of charge value.

judging whether the current state of charge is larger than a lowest state of charge value and smaller than or equal to a lower limit state of charge value under the condition that the current required power is not 0, wherein the lowest state of charge value is a minimum charge value of the power battery under the condition that the electric quantity detection accuracy of the power battery meets the requirement of a preset accuracy, and the lower limit state of charge value is a minimum charge value of the power battery capable of meeting the power requirement of the target vehicle;

In the case of determining that the current state of charge is at a lower limit state of charge value and an upper limit state of charge value, performing at least one of the following steps:

when the current required power is determined to be greater than the maximum power of an economic operation area, the target operation working condition is that a hydrogen internal combustion engine in a hydrogen internal combustion engine range-extending power system operates at a high-speed cruising target operation working condition point, the energy flow mode is a fifth energy flow mode, wherein the fifth energy flow mode is that the electric energy generated by the hydrogen internal combustion engine operates to supply power to the driving motor and charge the power battery, and the excess air coefficient of the hydrogen internal combustion engine is between 1.7 and 2.3 when the hydrogen internal combustion engine operates at the high-speed cruising target operation working condition point;

in the case that the current required power is determined to be smaller than or equal to the maximum power of an economical operation area and larger than the difference between the maximum power of the economical operation area and the chargeable power of the power battery, the target operation condition is that a hydrogen internal combustion engine in a range-increasing power system of the hydrogen internal combustion engine operates at the maximum power point of the economical operation area, the energy flow mode is a fifth energy flow mode, wherein the fifth energy flow mode is that electric energy generated by the operation of the hydrogen internal combustion engine simultaneously supplies power to the driving motor and charges the power battery, and the excess air coefficient of the hydrogen internal combustion engine when operated at the maximum power point of the economical operation area is between 1.9 and 2.2;

when the current required power is determined to be less than or equal to a second maximum power value and greater than the difference between the third power of the economical operation area and the chargeable power, the target operation condition is that the hydrogen internal combustion engine in the range-increasing power system of the hydrogen internal combustion engine operates at the third power point of the economical operation area, the energy flow mode is the fifth energy flow mode, wherein the second maximum power value is the maximum value of the difference between the second power of the economical operation area and the chargeable power and the third power of the economical operation area, and the excess air coefficient of the hydrogen internal combustion engine during the operation at the third power point of the economical operation area is between 1.9 and 2.2;

And under the condition that the current required power is less than or equal to a third maximum power value, the target operation condition is that a hydrogen internal combustion engine in the hydrogen internal combustion engine range-extending power system operates at an economic operation region minimum power point, the energy flow mode is the fifth energy flow mode, wherein the third maximum power value is the difference between three powers and chargeable powers in the economic operation region and the maximum value in the economic operation region minimum power, and the air excess coefficient of the hydrogen internal combustion engine during the operation at the economic operation region minimum power point is between 1.9 and 2.2.

By the method, the target running condition and the energy flow mode of the vehicle under different conditions can be determined under the condition that the current state of charge is at the lower limit state of charge value and the upper limit state of charge value.

According to still another aspect of the embodiment of the present application, there is also provided a range-extending power system control device for a hydrogen internal combustion engine, including:

the first acquisition module is used for acquiring the current required power of the target vehicle;

the second acquisition module is used for acquiring the current charge state of a power battery in a hydrogen internal combustion engine range-extending power system of the target vehicle;

The determining module is used for determining a target operation condition of a range-extending power system of the hydrogen internal combustion engine and an energy flow mode of the range-extending power system of the hydrogen internal combustion engine according to the current required power and the current charge state, wherein the hydrogen internal combustion engine is used for driving a range extender generator to generate power and supplying power to the power battery and/or a driving motor in the range-extending power system of the hydrogen internal combustion engine under any one of the target operation conditions that the hydrogen internal combustion engine is in an operation state, the hydrogen internal combustion engine operates according to an excessive air coefficient, and the energy flow mode is used for indicating a circulation path of electric energy in the target vehicle;

and the control module is used for controlling the range-extending power system of the hydrogen internal combustion engine according to the target operation working condition and the energy flow mode.

According to still another aspect of the embodiments of the present application, there is provided an electronic device including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory complete communication with each other through the communication bus; wherein the memory is used for storing a computer program; a processor for performing the method steps of any of the embodiments described above by running the computer program stored on the memory.

According to still another aspect of the embodiment of the present application, there is also provided an automobile including: the hydrogen internal combustion engine extended range power system of any one of the preceding embodiments and the electronic device as described above.

According to a further aspect of the embodiments of the present application there is also provided a computer readable storage medium having stored therein a computer program, wherein the computer program is arranged to perform the method steps of any of the embodiments described above when run.

The application has the beneficial effects that:

Drawings

FIG. 1 is a schematic diagram of an alternative hydrogen internal combustion engine range-extending power system according to an embodiment of the present application;

FIG. 2 is a flow chart of an alternative hydrogen internal combustion engine range-extending powertrain control method in accordance with an embodiment of the present application;

FIG. 3 is a flow chart of another alternative hydrogen internal combustion engine range-extending powertrain control method according to an embodiment of the present application;

FIG. 4 is a flow chart of another alternative hydrogen internal combustion engine range-extending powertrain control method according to an embodiment of the present application;

FIG. 5 is a flow chart of another alternative hydrogen internal combustion engine range-extending powertrain control method in accordance with an embodiment of the present application;

FIG. 6 is a flow chart of another alternative hydrogen internal combustion engine range-extending powertrain control method in accordance with an embodiment of the present application;

FIG. 7 is a schematic illustration of an operational area economy index of a hydrogen internal combustion engine in an alternative hydrogen internal combustion engine extended range powertrain, in accordance with an embodiment of the present application;

FIG. 8 is a schematic illustration of an alternative hydrogen internal combustion engine operating region emissions index in a hydrogen internal combustion engine extended range powertrain, in accordance with an embodiment of the present application;

FIG. 9 is a flow chart of an alternative hydrogen internal combustion engine range-extending powertrain control method in accordance with an embodiment of the application;

FIG. 10 is a block diagram of an alternative hydrogen internal combustion engine range-extending powertrain control device in accordance with an embodiment of the present application;

fig. 11 is a block diagram of an alternative electronic device in accordance with an embodiment of the present application.

The device comprises a 1-hydrogen internal combustion engine, a 2-range extender generator, a 3-motor controller, a 31-generator controller, a 32-driving motor controller, a 4-power battery, a 5-driving motor, a 6-vehicle-mounted charger, a 7-reduction gearbox, an 8-hydrogen storage bottle and 9-wheels.

Detailed Description

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1, according to an aspect of the present application, there is provided a range-extending power system of a hydrogen internal combustion engine 1, comprising: a hydrogen internal combustion engine 1, a range extender generator 2, a motor controller 3, a power battery 4 and a driving motor 5;

the hydrogen internal combustion engine 1 is in gas circuit connection with a hydrogen storage bottle 8 for providing hydrogen, the hydrogen internal combustion engine 1 is mechanically connected with the range extender generator 2, under any target operation condition that the hydrogen internal combustion engine 1 is in an operation state, the hydrogen internal combustion engine 1 is used for driving the range extender generator 2 to generate electricity and supplying power to a power battery 4 and/or a driving motor 5 in a range extender power system of the hydrogen internal combustion engine 1, and the hydrogen internal combustion engine 1 operates according to an excess air coefficient;

the motor controller 3 is electrically connected with the range extender generator 2, the driving motor 5 and the power battery 4, and is used for controlling the generated power of the range extender generator 2, the output power for transmitting electricity to the driving motor 5 and the charging power for charging the power battery 4.

According to the range-extending power system of the hydrogen internal combustion engine 1, the hydrogen internal combustion engine 1 is mechanically connected with the range-extending power generator, so that the hydrogen internal combustion engine 1 is used for driving the range extender power generator 2 to generate power and supplying power to the power battery 4 and/or the driving motor 5 in the range-extending power system of the hydrogen internal combustion engine 1, and therefore the hydrogen internal combustion engine 1 in the embodiment only needs to drive the range extender power generator 2 to generate power, and under the condition that the hydrogen internal combustion engine 1 does not need to achieve the equivalent power performance of a gasoline engine, namely, under the condition that a supercharger does not need to work under high load, the driving motor 5 can still be controlled through the motor controller 3, so that the driving motor 5 can achieve the equivalent power performance of the gasoline engine; and, the hydrogen internal combustion engine 1 is operated in accordance with the excess air ratio, so that the emission of nitrogen oxides can be reduced; further, with the range-extending power system of the hydrogen internal combustion engine 1 of the present embodiment, it is possible to achieve not only the power performance equivalent to that of a gasoline engine but also the reduction of emission of nitrogen oxides while reducing the work load of a supercharger.

As an alternative embodiment, the range-extending power system of the hydrogen internal combustion engine 1 as described above further includes: a vehicle-mounted charger 6 and a reduction gearbox 7;

the power battery 4 is electrically connected with the vehicle-mounted charger 6 and is used for receiving charging through the vehicle-mounted charger 6;

the reduction gearbox 7 is mechanically connected to the drive motor 5 and the wheels 9.

By the system of the embodiment, the mechanical energy of the wheels 9 can be recovered by arranging the reduction gearbox 7, and the power battery 4 can be charged by the vehicle-mounted charger 6.

As an alternative embodiment, a range-extending power system of the hydrogen internal combustion engine 1 as described above:

in the front-drive vehicle type, the generator controller 31 and the driving motor controller 32 in the motor controller 3 are integrally arranged;

in the rear-drive vehicle type, the generator controller 31 and the drive motor controller 32 in the motor controller 3 are provided separately.

By the system of the embodiment, different motor controllers 3 are arranged according to different vehicle types, so that the cost can be optimally controlled.

Specifically, the range-extending power system of the hydrogen internal combustion engine comprises the hydrogen internal combustion engine 1, a range extender generator 2, a motor controller 3 (consisting of a generator controller 31 and a driving motor controller 32), a power battery 4, a driving motor 5, a vehicle-mounted charger 6, a reduction gearbox 7, a hydrogen storage bottle 8 and wheels 9, wherein the hydrogen storage bottle 8 is mechanically (gas circuit) connected with the hydrogen internal combustion engine 1, and the hydrogen internal combustion engine 1 is mechanically connected with the range extender generator 2; the power generator controller 3-1 is electrically connected with the range extender generator 2 and the power battery 4, the driving motor controller 3-2 is electrically connected with the driving motor 5 and the power battery 4, and the power battery 4 is electrically connected with the vehicle-mounted charger 6; the reduction gearbox 7 is mechanically connected with the driving motor 5 and the wheels 9. In the front-drive vehicle type, the generator controller 31 and the drive motor controller 32 are provided integrally; in the rear-drive vehicle type, the generator controller 31 and the drive motor controller 32 are provided separately.

According to one aspect of an embodiment of the present application, a method for controlling a range-extending power system of a hydrogen internal combustion engine is provided. As an alternative embodiment, in the present embodiment, the above-described hydrogen internal combustion engine range-extending power system control method may be applied to a hardware environment constituted by a terminal and a server. The server is connected with the terminal through a network, can be used for providing services (such as advertisement push service, application service and the like) for the terminal or a client installed on the terminal, and can be used for providing data storage service for the server by setting a database on the server or independent of the server.

The network may include, but is not limited to, at least one of: wired network, wireless network. The wired network may include, but is not limited to, at least one of: a wide area network, a metropolitan area network, a local area network, and the wireless network may include, but is not limited to, at least one of: WIFI (Wireless Fidelity ), bluetooth. The terminal may not be limited to a PC, a mobile phone, a tablet computer, or the like.

The control method of the range-extending power system of the hydrogen internal combustion engine can be executed by a server, a terminal or both. The control method of the hydrogen internal combustion engine range-extending power system, which is executed by the terminal, can also be executed by a client mounted on the control method.

Taking the control method of the hydrogen internal combustion engine range-extending power system in the embodiment as an example, fig. 2 is a schematic flow chart of an alternative control method of the hydrogen internal combustion engine range-extending power system according to an embodiment of the present application, which includes the following steps:

step P101, obtaining the current required power of the target vehicle.

The hydrogen internal combustion engine range-extending power system control method in the present embodiment may be applied to a scenario in which the hydrogen internal combustion engine is used as one of power sources of a vehicle.

As an alternative embodiment, the step of obtaining the current required power of the target vehicle, such as the aforementioned hydrogen internal combustion engine range-extending power system, includes the steps of:

acquiring an opening signal of an accelerator pedal of a target vehicle; judging the target power of the target vehicle according to the opening signal; the current demand power is determined by dividing the target power by the product of the motor controller efficiency, the drive motor efficiency, and the reduction gearbox efficiency in the target vehicle.

That is, by acquiring the opening signal of the accelerator pedal of the target vehicle, the target power of the target vehicle is determined, and after the target power of the target vehicle is determined, the current required power of the target vehicle needs to be determined based on the efficiency of each part of the target vehicle, that is, the current required power can still reach the target power after various losses occur.

In the present embodiment, the target power is the power P required at the wheel end of the target vehicle _Wheel 。

In general, the overall efficiency of the target vehicle may be determined based on the product of the motor controller efficiency, the drive motor efficiency, and the reduction gearbox efficiency; thus, the target power may be divided by the product obtained above to determine the current required power.

For example, the current required power P and the required power P at the wheel end of the automobile _Wheel (i.e., target power) there is the following relationship:

P＝P _Wheel /(η ₇ ·η ₅ ·η ₃ )；

wherein eta ₃ : efficiency of the generator and the drive motor controller; η (eta) ₅ : driving motor efficiency; η (eta) ₇ : reduction gearbox (including drive train) efficiency.

Step P102, obtaining the current charge state of a power battery in a hydrogen internal combustion engine range-extending power system of the target vehicle.

In this embodiment, the power cell may be a component of a range-extending power system of a hydrogen internal combustion engine.

The current state of charge for indicating the current residual capacity of the power battery can be determined by collecting the residual capacity of the power battery.

And step P103, determining a target operation condition of a range-extending power system of the hydrogen internal combustion engine and an energy flow mode of the range-extending power system of the hydrogen internal combustion engine according to the current required power and the current charge state, wherein the hydrogen internal combustion engine is used for driving a range extender generator to generate power and supplying power to a power battery and/or a driving motor in the range-extending power system of the hydrogen internal combustion engine under any one of the target operation conditions that the hydrogen internal combustion engine in the range-extending power system of the hydrogen internal combustion engine is in an operation state, and the hydrogen internal combustion engine operates according to an excessive air coefficient, and the energy flow mode is used for indicating a circulation path of electric energy in a target vehicle.

After the current required power and the current state of charge are obtained, the target operation working condition of the hydrogen internal combustion engine range-extending power system and the energy flow mode of the hydrogen internal combustion engine range-extending power system can be determined based on the current required power and the current state of charge.

The target operating condition of the hydrogen internal combustion engine may be a condition for indicating whether the hydrogen internal combustion engine is in an operating state, and when the hydrogen internal combustion engine is in an operating state, whether the hydrogen internal combustion engine is supplying power to the power battery, or to the drive motor, or both.

Further, it may be that when the current state of charge indicates that the remaining power of the power battery is too low (e.g., below a preset upper limit state of charge value), and/or when the current required power is greater than the maximum power that can be provided by the power battery, the hydrogen internal combustion engine needs to be operated and drives the range-extending generator to generate power.

For example: under the condition that the current state of charge indicates that the residual electric quantity of the power battery is too low, the hydrogen internal combustion engine runs and can supply power for the power battery and/or the driving motor through the electric energy generated by driving the range-extending generator; under the condition that the current state of charge indicates that the residual electric quantity of the power battery is not too low and the current required power is larger than the maximum power which can be provided by the power battery, the hydrogen internal combustion engine operates and the electric energy generated by driving the range-extending generator can only supply power for the driving motor.

After determining the current demand and the current state of charge, a flow path of the electrical energy in the target vehicle, i.e., an energy flow pattern, may also be determined.

Energy flow patterns may include, but are not limited to: whether the electric energy generated by driving the range extender generator through the hydrogen internal combustion engine supplies power to the power battery, whether the electric energy generated by driving the range extender generator through the hydrogen internal combustion engine supplies power to the driving motor, whether the electric energy supplied to the driving motor through the power battery, and whether the energy recovery is carried out on the kinetic energy of the wheels (namely, the kinetic energy of the wheels is converted into the electric energy to be stored in the power battery).

And step P104, controlling the range-extending power system of the hydrogen internal combustion engine according to the target operation condition and the energy flow mode.

After the target operating condition and the energy flow mode are determined, the range-extending power system of the hydrogen internal combustion engine can be controlled to determine whether to start the operation of the hydrogen internal combustion engine, whether to supply power to the power battery and/or the driving motor through the hydrogen internal combustion engine, whether to supply power to the driving motor through the power battery, and the like.

According to the method, the hydrogen internal combustion engine is used for driving the range extender generator to generate electricity and supplying power to the power battery and/or the driving motor in the range extender power system of the hydrogen internal combustion engine, so that the hydrogen internal combustion engine in the embodiment only needs to drive the range extender generator to generate electricity, and the driving motor can still be controlled through the motor controller under the condition that the hydrogen internal combustion engine does not need to achieve the equivalent power performance of the gasoline engine, namely, the supercharger does not need to work under the high load, so that the driving motor can achieve the equivalent power performance of the gasoline engine; and the hydrogen internal combustion engine operates according to the excess air ratio, so that the emission of nitrogen oxides can be reduced; furthermore, by the range-extending power system of the hydrogen internal combustion engine, the aim of reducing the emission of nitrogen oxides can be achieved under the condition of reducing the working load of the supercharger, and the power performance equivalent to that of a gasoline engine can be achieved.

As shown in fig. 3, as an alternative embodiment, the foregoing method for controlling the range-extending power system of the hydrogen internal combustion engine, according to the current required power and the current state of charge, determines the target operating condition of the range-extending power system of the hydrogen internal combustion engine and the energy flow mode of the range-extending power system of the hydrogen internal combustion engine, which includes the following steps:

step P201, the current running state of the target vehicle is acquired.

To further determine whether energy recovery is required, a current operating state of the target vehicle may be acquired, which may be state information indicating a current speed of the target vehicle.

In step P202, when the current required power is 0, the current running state indicates that the speed of the target vehicle is 0, and the current state of charge is between a lowest state of charge value and a lower limit state of charge value, it is determined that the target vehicle enters a parking idle state, the target running condition is that a hydrogen internal combustion engine in a hydrogen internal combustion engine range-increasing power system runs at an idle working condition working point, the energy flow mode is a first energy flow mode, wherein the lowest state of charge value is a minimum charge value when the electric quantity detection accuracy of the power battery meets a preset accuracy requirement, the lower limit state of charge value is a minimum charge value when the power battery can meet the power requirement of the target vehicle, the minimum state of charge value is smaller than the lower limit state of charge value, and the excess air coefficient of the hydrogen internal combustion engine during running at the idle working point is between 1.2 and 3.2, and the first energy flow mode is that electric energy generated by running the hydrogen internal combustion engine charges the power battery.

After the current running state of the target vehicle is obtained, if the current running state indicates that the speed of the target vehicle is 0 and the current required power is also 0, a section corresponding to the current state of charge of the target vehicle can be judged.

And under the condition that the current state of charge is determined to be between the lowest state of charge value and the lower limit state of charge value, determining that the target vehicle enters a parking idle state, wherein the target operation working condition is that the hydrogen internal combustion engine in the hydrogen internal combustion engine range-extending power system operates at an idle working condition working point, and the energy flow mode is a first energy flow mode.

That is, when the accelerator pedal opening dpedal=0 is determined, it is further determined whether the vehicle speed V of the target vehicle is zero.

When the vehicle speed V=0 is determined, whether the current state of charge SOC of the power battery is lower than the lowest state of charge value SOC is further determined _Min And the set lower limit state of charge value SOC _Low Between them.

Typically, the lowest state of charge value SOC _Min Between 10% and 15%. If the power battery is too low, the actual electric quantity is lower due to the fact that the electric quantity detection is not standard, and then the situation that the target vehicle cannot run due to insufficient electric quantity occurs.

Lower limit state of charge value SOC _Low Between 25% and 35%, is the minimum charge value that the power cell can meet the power demand of the target vehicle.

When the state of charge (SOC) of the power battery is determined to be between the minimum value (SOC) _Min And the set lower limit value SOC _Low Between, i.e. SOC _Min ＜SOC≤SOC _Low The automobile is parked and idling, the first energy flow mode is to charge a power battery by using electric energy generated by running a hydrogen internal combustion engine, namely: the hydrogen internal combustion engine 1 is operated at the idle operating point E shown in fig. 7, and the energy flow path corresponding to the first energy flow mode is: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31 and power battery 4.

In this case, the hydrogen internal combustion engine has an excess air ratio of between 1.2 and 3.2 when operating at the idle operating point, and further the hydrogen internal combustion engine has an excess air ratio of between 1.35 and 3.0 when operating at the idle operating point, in which case the hydrogen internal combustion engine speed is between 1000r/min and 1500r/min, the hydrogen internal combustion engine power is between 2.5kW and 4.5kW, and the original NOx emissions are not higher than 50ppm.

In step P203, when the current required power is 0, the current running state indicates that the speed of the target vehicle is 0, and the current state of charge is greater than the lower limit state of charge value, it is determined that the target vehicle enters the parking stop state.

That is, when it is determined that the current required power is 0, the current running state indicates that the vehicle speed of the target vehicle is 0, and the current state of charge SOC > the lower limit state of charge value SOCLow of the power battery, the vehicle enters a parking stop state, i.e., the target vehicle is completely stopped.

In step P204, when the current required power is 0, the current running state indicates that the speed of the target vehicle is not 0, and the current state of charge is greater than the lower limit state of charge value, it is determined that the target vehicle enters the energy recovery state, the target running condition is that the hydrogen internal combustion engine is not running, the energy recovery subsystem in the range-extending power system of the hydrogen internal combustion engine runs, and the energy flow mode is a second energy flow mode, wherein the second energy flow mode is electric energy recovered by the energy recovery subsystem, and the power battery is charged.

That is, when it is determined that the vehicle speed V > 0 of the target vehicle, it is further determined whether the current state of charge SOC of the power battery is between the lowest state of charge value SOC _Min And a highest state of charge value SOC _Max Between them.

When determining that the current state of charge (SOC) of the power battery is between the minimum state of charge (SOC) _Min And a highest state of charge value SOC _Max Between, i.e. SOC _Min ＜SOC≤SOC _Max The automobile performs energy recovery, namely, an energy recovery subsystem in a range-extending power system of the hydrogen internal combustion engine operates to convert kinetic energy of wheels into electric energy to be stored in a power battery according to a second energy flow mode, and an energy flow path corresponding to the second energy flow mode is as follows: wheel 9, reduction gearbox 7, driving motor 5, driving motor controller 3-2 and power battery 4.

As shown in fig. 4, as an alternative embodiment, the foregoing method for controlling the range-extending power system of the hydrogen internal combustion engine, according to the current required power and the current state of charge, determines the target operation condition of the range-extending power system of the hydrogen internal combustion engine and the energy flow mode of the range-extending power system of the hydrogen internal combustion engine, which includes the following steps:

and step P301, judging whether the current state of charge is higher than an upper limit state of charge value under the condition that the current required power is greater than 0, wherein the upper limit state of charge value is used for indicating the maximum charge value of the power battery for quick charge.

In the case where it is determined that the current required power is greater than 0, it is determined that the target vehicle is required to travel, and therefore it is determined whether the current state of charge is higher than the upper limit state of charge value.

That is, it is determined whether the current state of charge SOC of the power battery is satisfied, the current state of charge SOC > the upper limit state of charge value SOC _High Is not limited.

Upper limit state of charge value SOC _High May be a maximum charge value that is used to indicate that the power cell is being charged quickly, typically between 75% and 85%.

And step P302, judging whether the current required power is larger than the discharge power of the power battery or not under the condition that the current charge state is higher than the upper limit charge state value.

When determining that the current state of charge SOC > the upper limit state of charge value SOC of the power battery _High Further determining whether the current required power P of the target vehicle does not exceed the discharge power P of the power battery _4out 。

In step P303, when it is determined that the current required power is less than or equal to the discharge power, the target operation condition is that the hydrogen internal combustion engine is not operated, the power battery is operated in a discharging mode, and the energy flow mode is a third energy flow mode, where the third energy flow mode is: the driving motor is supplied with power only by a power battery.

When the current required power P of the target vehicle is less than or equal to the discharge power P of the power battery _4out The vehicle is driven purely by the power battery, that is, the hydrogen internal combustion engine is not operated, the energy flow mode is a third energy flow mode, and the energy corresponding to the third energy flow modeThe flow paths of the measuring flow are: power battery 4- & gt drive motor controller 3-2- & gt drive motor 5- & gt reduction gearbox 7- & gt wheels 9.

And step P304, under the condition that the current required power is larger than the discharge power, the target operation condition is that the hydrogen internal combustion engine in the range-extending power system of the hydrogen internal combustion engine operates at a high-speed cruising target operation condition point, the energy flow mode is a fourth energy flow mode, wherein the excessive air coefficient of the hydrogen internal combustion engine is between 1.6 and 2.4 when the hydrogen internal combustion engine operates at the high-speed cruising target operation condition point, and the fourth energy flow mode is to supply power to the driving motor through the electric energy generated by the operation of the hydrogen internal combustion engine.

When determining that the current required power P is greater than the discharge power P of the power battery _4out The vehicle is driven in series, as shown in fig. 7, the hydrogen internal combustion engine is operated at the high-speed cruising operation point F, and is operated in the fourth energy flow mode, and the energy flow path corresponding to the fourth energy flow mode is: the hydrogen storage bottle 8, the hydrogen internal combustion engine 1, the range extender generator 2, the generator controller 3-1, the driving motor controller 3-2, the driving motor 5, the reduction gearbox 7 and the wheels 9.

The hydrogen internal combustion engine has an excess air ratio between 1.6 and 2.4 when operating at a high-speed cruise target operating condition point, and further has a high-speed cruise operating condition F point: the excess air coefficient can meet the requirement that lambda is not less than 1.8 and not more than 1.9, and the rotating speed of the hydrogen internal combustion engine is between N=3000 r/min and P _1F =50kw, nox raw emission is not higher than 65ppm.

By the method, the target operation condition and the energy flow mode of the vehicle can be respectively determined when the current required power is determined to be smaller than or equal to the discharge power and when the current required power is determined to be larger than the discharge power under the condition that the current charge state is higher than the upper limit charge state value.

As shown in fig. 5, as an alternative embodiment, the foregoing method for controlling the range-extending power system of the hydrogen internal combustion engine, according to the current required power and the current state of charge, determines the target operation condition of the range-extending power system of the hydrogen internal combustion engine and the energy flow mode of the range-extending power system of the hydrogen internal combustion engine, which includes the following steps:

And step P401, judging whether the current state of charge is larger than a lower limit state of charge value and smaller than or equal to an upper limit state of charge value under the condition that the current required power is not 0, wherein the lower limit state of charge value is a minimum state of charge value of the power battery capable of meeting the power requirement of the target vehicle, and the upper limit state of charge value is used for indicating a maximum state of charge of the power battery for quick charge.

When the current demand power of the target vehicle is not 0, further judging whether the current demand power P is less than or equal to the discharge power P of the power battery _4out 。

In the event that it is determined that the current state of charge is greater than the lower limit state of charge value and less than or equal to the upper limit state of charge value, performing at least one of the following:

step P402, when it is determined that the current required power is less than or equal to the discharge power of the power battery, the target operation condition is that the hydrogen internal combustion engine is not operated, the power battery is operated in a discharging mode, and the energy flow mode is a third energy flow mode, wherein the third energy flow mode is as follows: the driving motor is supplied with power only by a power battery.

When the target vehicle meets the current demand power P and is less than or equal to the discharge power P of the power battery _4out And when the target vehicle is in pure electric drive, namely the target operation condition is that the hydrogen internal combustion engine is not operated, and the power battery is in discharge operation.

Discharging power P of power battery _4out The power cell may be powered for 30 minutes with continuous discharge power in kW.

The energy flow mode is a third energy flow mode, and the energy flow path corresponding to the third energy flow mode is: power battery 4- & gt drive motor controller 3-2- & gt drive motor 5- & gt reduction gearbox 7- & gt wheels 9.

In step P403, when it is determined that the current required power is greater than the maximum power in the economical operation area, the target operation condition is that the hydrogen internal combustion engine in the range-extending power system of the hydrogen internal combustion engine operates at the high-speed cruising target operation point, and the energy flow mode is a fifth energy flow mode, where the maximum power in the economical operation area is greater than the discharge power, the excess air coefficient of the hydrogen internal combustion engine when operating at the high-speed cruising target operation point is between 1.7 and 2.3, and the fifth energy flow mode is that the driving motor is supplied with power and the power battery is charged simultaneously by the electric energy generated by the operation of the hydrogen internal combustion engine.

When determining that the current required power P is greater than the discharge power P of the power battery _4out Further determining whether the current required power P is higher than the maximum power P of the economical operation region _1D 。

Maximum power P of economical operating region _1D In order to be preset, the maximum power that can be output is set in the case where the preset power conversion rate requirement (i.e., within the optimum power generation efficiency interval of the hydrogen internal combustion engine) is satisfied. As indicated by point D in fig. 7. And, the target operation condition is that the hydrogen internal combustion engine in the hydrogen internal combustion engine range-extending power system operates at a high-speed cruising target operation condition point (point F shown in fig. 7).

When determining the power demand P > the maximum power P of the economical operating region _1D The target vehicle is driven in series, the hydrogen internal combustion engine operates at a high-speed cruising operation working point F, and the energy flow mode is a fifth energy flow mode, namely, the hydrogen internal combustion engine and the range extender generator supply power for the driving motor and simultaneously charge the power battery; that is, the fifth energy flow pattern includes: energy flow I: the hydrogen storage bottle 8, the hydrogen internal combustion engine 1, the range extender generator 2, the generator controller 3-1, the driving motor controller 3-2, the driving motor 5, the reduction gearbox 7 and the wheels 9; energy flow II: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 3-1 and power battery 4.

The hydrogen internal combustion engine has an excess air ratio between 1.7 and 2.3 when operated at a high-speed cruising target operating condition point F, and further, the high-speed cruising operating condition point F can also satisfy the following conditions: lambda is more than or equal to 1.8 and less than or equal to 1.9, N=3000 r/min and P _1F =50kw, nox raw emission is not higher than 65ppm.

Wherein lambda is the excess air factor, lambda > 1 during lean combustion; n is the rotating speed of the hydrogen internal combustion engine, and the unit is r/min; p (P) _1F : the output power of the operating point F of the high-speed cruising operating condition of the hydrogen internal combustion engine.

In step P404, when it is determined that the current required power is less than or equal to the maximum power of the economical operation area and greater than the difference between the maximum power of the economical operation area and the chargeable power of the power battery, the target operation condition is that the hydrogen internal combustion engine in the range-extending power system of the hydrogen internal combustion engine is operated at the maximum power point of the economical operation area, and the energy flow mode is a fifth energy flow mode, wherein the air excess factor of the hydrogen internal combustion engine when operated at the maximum power point of the economical operation area is between 1.9 and 2.2.

When the current required power P of the target vehicle is determined to be between the economic operation region maximum power P _1D Rechargeable power P with power battery _4in Sum of differences and economic operating area maximum power P _1D Between, i.e. P _1D -P _4in ＜P≤P _1D The target vehicle is driven in series.

Rechargeable power P of power battery _4in The chargeable maximum power of the power battery is obtained.

In this case, the energy flow mode is also the fifth energy flow mode when the hydrogen internal combustion engine is operated at the maximum power point D in the economical operation region, that is, the hydrogen internal combustion engine and the range extender generator supply power to the drive motor and charge the power battery.

The hydrogen internal combustion engine has an excess air ratio between 1.9 and 2.2 when operated at the economic operation region maximum power point D, and further, the economic operation region maximum power point D can also satisfy the following conditions: lambda is more than or equal to 2.0 and less than or equal to 2.1, N=2700r/min, P _1F =31kw, the original nox emissions were not higher than 48ppm.

Wherein lambda is the excess air factor, lambda > 1 during lean combustion; n is the rotating speed of the hydrogen internal combustion engine, and the unit is r/min; p (P) _1F : the output power of the maximum power point D of the economical operating region of the hydrogen internal combustion engine.

In step P405, when it is determined that the current required power is less than or equal to the first maximum power value and greater than the difference between the second power and the chargeable power in the economy operating area, the target operating condition is that the hydrogen internal combustion engine in the range-extending power system of the hydrogen internal combustion engine operates at the second power point in the economy operating area, and the energy flow mode is the fifth energy flow mode, where the first maximum power value is the difference between the maximum power and the chargeable power in the economy operating area and the maximum value in the second power in the economy operating area, and the air excess factor of the hydrogen internal combustion engine when operating at the second power point in the economy operating area is between 2.2 and 2.6.

When the current required power P of the target vehicle is determined to be between the difference between the second power and the chargeable power in the economical operation region and the first maximum power value, namely P _1C -P _4in ＜P≤Max(P _1D -P _4in ,P _1C ) The target vehicle is driven in series.

Wherein the first maximum power value is the difference between the maximum power of the economical operation region and the chargeable power and the maximum value of the second power of the economical operation region, namely Max (P _1D -P _4in ,P _1C )。

In this case, the energy flow mode is also the fifth energy flow mode while the hydrogen internal combustion engine is operating at the second power point C in the economical operation region, that is, the hydrogen internal combustion engine and the range extender generator supply power to the drive motor while also charging the power battery.

The excess air ratio of the hydrogen internal combustion engine when operated at the second power point C in the economical operation region is between 2.2 and 2.6, and further, the second power point C in the economical operation region can also satisfy the following conditions: lambda is more than or equal to 2.3 and less than or equal to 2.5, N=2000 r/min and P _1C =20kw, the original nox emissions were not higher than 20ppm.

Wherein lambda is the excess air factor, lambda > 1 during lean combustion; n is the rotating speed of the hydrogen internal combustion engine, and the unit is r/min; p (P) _1F : the output of the hydrogen internal combustion engine at the second power point C in the economical operating range.

In step P406, when it is determined that the current required power is less than or equal to the second maximum power value and greater than the difference between the third power and the chargeable power in the economy operating area, the target operating condition is that the hydrogen internal combustion engine in the range-extending power system of the hydrogen internal combustion engine operates at the third power point in the economy operating area, and the energy flow mode is the fifth energy flow mode, where the second maximum power value is the maximum value of the difference between the second power and the chargeable power in the economy operating area and the third power in the economy operating area, and the air excess coefficient of the hydrogen internal combustion engine when operating at the third power point in the economy operating area is between 1.9 and 2.2.

When the current required power P of the target vehicle is determined to be between the difference between the third power and the chargeable power in the economical operation region and the second maximum power value, namely P _1B -P _4in ＜P≤Max(P _1C -P _4in ,P _1B ) The target vehicle is driven in series.

Wherein the second maximum power value is the maximum value of the difference between the two power values in the economical operation region and the chargeable power and the third power value in the economical operation region, namely Max (P _1C -P _4in ,P _1B )。

In this case, the hydrogen internal combustion engine is operated at the third power point B in the economical operation region, and the energy flow mode is also the fifth energy flow mode, that is, the hydrogen internal combustion engine and the range extender generator supply power to the drive motor and simultaneously charge the power battery.

The excess air ratio of the hydrogen internal combustion engine in the third power point B of the economical operation area is between 2.2 and 2.6, and further, the third power point B of the economical operation area can also meet the following conditions: lambda is more than or equal to 2.3 and less than or equal to 2.5, N=2000 r/min and P _1C =20kw, the original nox emissions were not higher than 20ppm.

Wherein lambda is the excess air factor, lambda > 1 during lean combustion; n is the rotating speed of the hydrogen internal combustion engine, and the unit is r/min; p (P) _1F : the output of the hydrogen internal combustion engine at the third power point B in the economical operating range.

In step P407, when it is determined that the current required power is less than or equal to the third maximum power value, the target operation condition is that the hydrogen internal combustion engine in the range-extending power system of the hydrogen internal combustion engine operates at the minimum power point of the economic operation area, and the energy flow mode is the fifth energy flow mode, where the third maximum power value is the difference between the three powers of the economic operation area and the chargeable power and the maximum value of the minimum power of the economic operation area, and the excess air coefficient of the hydrogen internal combustion engine when operating at the minimum power point of the economic operation area is between 1.9 and 2.2.

When it is determined that the current required power P of the target vehicle does not exceed the difference between the third power P1B and the power-battery chargeable power P4in the economical operation region and the maximum value of the minimum power P1A in the economical operation region, that is, P.ltoreq.Max (P _1B -P _4in ,P _1A ) The target vehicle is driven in series.

Wherein the third maximum power value is the maximum value of the difference between the three power values and the chargeable power value in the economical operation region and the minimum power value in the economical operation region, that is, max (P _1B -P _4in ,P _1A )。

In this case, the hydrogen internal combustion engine is operated at the minimum power point a in the economical operation region, and the energy flow mode is also the fifth energy flow mode, that is, the hydrogen internal combustion engine and the range extender generator supply power to the drive motor and simultaneously charge the power battery.

The excess air ratio of the hydrogen internal combustion engine when operated at the economic operation region minimum power point A is between 1.9 and 2.2, and further, the economic operation region minimum power point A can also meet the following conditions: lambda is more than or equal to 2.0 and less than or equal to 2.1, N=1500r/min and P _1A =5.6kw, the original nox emissions are not higher than 22ppm.

As shown in fig. 6, as an alternative embodiment, the foregoing method for controlling the range-extending power system of the hydrogen internal combustion engine, according to the current required power and the current state of charge, determines the target operation condition of the range-extending power system of the hydrogen internal combustion engine and the energy flow mode of the range-extending power system of the hydrogen internal combustion engine, which includes the following steps:

in step P501, if the current required power is not 0, it is determined whether the current state of charge is greater than a minimum state of charge value and less than or equal to a lower limit state of charge value, where the minimum state of charge value is a minimum state of charge value of the power battery when the power detection accuracy of the power battery meets a preset accuracy requirement, and the lower limit state of charge value is a minimum state of charge value of the power battery capable of meeting the power requirement of the target vehicle.

In the case where the current required power is not 0, a determination operation of determining whether the current state of charge is greater than the lowest state of charge value and less than or equal to the lower limit state of charge value is further performed.

In the event that the current state of charge is determined to be at the lower and upper state of charge values, performing at least one of the following steps:

in step P502, under the condition that the current required power is determined to be greater than the maximum power of the economical operation area, the target operation condition is that the hydrogen internal combustion engine in the range-extending power system of the hydrogen internal combustion engine operates at a high-speed cruising target operation condition point, the energy flow mode is a fifth energy flow mode, the fifth energy flow mode is that the electric energy generated by the operation of the hydrogen internal combustion engine supplies power to the driving motor and charges the power battery, and the excess air coefficient of the hydrogen internal combustion engine is between 1.7 and 2.3 when the hydrogen internal combustion engine operates at the high-speed cruising target operation condition point.

Step P503, when the current required power is determined to be less than or equal to the maximum power of the economical operation area and greater than the difference between the maximum power of the economical operation area and the chargeable power of the power battery, the target operation condition is that the hydrogen internal combustion engine in the range-increasing power system of the hydrogen internal combustion engine is operated at the maximum power point of the economical operation area, the energy flow mode is a fifth energy flow mode, wherein the fifth energy flow mode is that the electric energy generated by the operation of the hydrogen internal combustion engine is used for simultaneously supplying power to the driving motor and charging the power battery, and the air excess coefficient of the hydrogen internal combustion engine is between 1.9 and 2.2 when the hydrogen internal combustion engine is operated at the maximum power point of the economical operation area;

Step P504, when the current required power is determined to be smaller than or equal to a first maximum power value and larger than the difference between the second power of the economical operation area and the chargeable power, the target operation condition is that the hydrogen internal combustion engine in the range-extending power system of the hydrogen internal combustion engine operates at the second power point of the economical operation area, the energy flow mode is a fifth energy flow mode, wherein the first maximum power value is the difference between the maximum power of the economical operation area and the chargeable power and the maximum value in the second power of the economical operation area, and the excess air coefficient of the hydrogen internal combustion engine is between 2.2 and 2.6 when the hydrogen internal combustion engine operates at the second power point of the economical operation area;

Wherein the first maximum power value is the difference between the maximum power of the economical operation area and the chargeable power and the maximum value in the second power of the economical operation areaI.e. Max (P _1D -P _4in ,P _1C )。

Step P505, when the current required power is determined to be less than or equal to the second maximum power value and greater than the difference between the third power and the chargeable power in the economical operation area, the target operation condition is that the hydrogen internal combustion engine in the range-extending power system of the hydrogen internal combustion engine operates at the third power point in the economical operation area, the energy flow mode is the fifth energy flow mode, wherein the second maximum power value is the maximum value in the difference between the second power and the chargeable power in the economical operation area and the third power in the economical operation area, and the excess air coefficient of the hydrogen internal combustion engine is between 1.9 and 2.2 when the hydrogen internal combustion engine operates at the third power point in the economical operation area;

In step P506, when it is determined that the current required power is less than or equal to the third maximum power value, the target operation condition is that the hydrogen internal combustion engine in the range-extending power system of the hydrogen internal combustion engine operates at the minimum power point of the economic operation area, and the energy flow mode is the fifth energy flow mode, where the third maximum power value is the difference between the three powers of the economic operation area and the chargeable power and the maximum value of the minimum powers of the economic operation area, and the excess air coefficient of the hydrogen internal combustion engine when operating at the minimum power point of the economic operation area is between 1.9 and 2.2.

As described below, an application example to which any of the foregoing embodiments is applied is provided:

FIG. 7 is a graph showing the economical index of the operating region of a hydrogen internal combustion engine in a range-extending power system of the hydrogen internal combustion engine (L_P: power line such as the hydrogen internal combustion engine, etc., in kW, L_FC: hydrogen consumption line such as the hydrogen internal combustion engine, etc., in g/kWh), and FIG. 8 is a graph showing the economical index of the operating region of a hydrogen internal combustion engine in a range-extending power system of the hydrogen internal combustion engine (L_P: power line such as the hydrogen internal combustion engine, L_NOx: original NOx emission line such as the hydrogen internal combustion engine, etc., in ppm). The present invention establishes an operating region of a range extender of a hydrogen internal combustion engine 1 according to the dynamic property, economical efficiency and emission characteristics of the hydrogen internal combustion engine 1, and comprises: idle operating point E, economy operating region operating point (A, B, C, D), and high-speed cruise operating point F. The economical operation area and the idle working condition described in the application example are both within the extremely low original NOx emission line L_NOx of the hydrogen internal combustion engine and the like, and the working point F of the high-speed cruising operation working condition of the hydrogen internal combustion engine can exceed the original NOx emission line L_NOx of the hydrogen internal combustion engine and the like. According to the control strategy of the range-extending power system of the hydrogen internal combustion engine, which is provided by the invention, the hydrogen internal combustion engine 1 can meet the emission regulation requirement without using an aftertreatment system under the common operation condition, and the hydrogen internal combustion engine 1 can operate at a high-speed cruising operation condition point F to meet the power requirement when the hydrogen internal combustion engine is in high-speed cruising or high-power requirement. The hydrogen internal combustion engine has the following characteristics when running at different working points:

Idle operating point E: lambda is more than or equal to 1.5 and less than or equal to 1.8, N=1200r/min, and P is more than or equal to 3.5kW _1E Less than or equal to 4.5kW, and the original emission of NOx is not higher than 30ppm;

economical operating area point a: lambda is more than or equal to 2.0 and less than or equal to 2.1, N=1500r/min and P _1A =5.6kw, the original nox emission is not higher than 22ppm;

economic operating area B point: lambda is more than or equal to 2.0 and less than or equal to 2.1, N=1500r/min and P _1B =12.2kw, the original nox emissions are not higher than 24ppm;

economical operating zone point C: lambda is more than or equal to 2.3 and less than or equal to 2.5, N=2000 r/min and P _1C =20kw, nox raw emission not higher than 20ppm;

economic operating area D point: lambda is more than or equal to 2.0 and less than or equal to 2.1, N=2700r/min, P _1D =31kw, nox raw emission no higher than 48ppm;

high-speed cruise operation point F: lambda is more than or equal to 1.8 and less than or equal to 1.9, N=3000 r/min and P _1F =50kw, nox raw emission is not higher than 65ppm.

Wherein lambda is the excess air factor, lambda > 1 during lean combustion; n is the rotating speed of the hydrogen internal combustion engine, and the unit is r/min; p (P) _1M : the output of the hydrogen internal combustion engine at the economical operating region power point M (M is A, B, C, D, E, F).

Fig. 9 is a logic diagram of a control system of a range-extending power system of a hydrogen internal combustion engine according to the setting of fig. 7 and 8, and the following is a further detailed description of a control strategy of a range-extending power system of a hydrogen internal combustion engine according to the disclosure in conjunction with fig. 1, 9, 7 and 8, where the flow is as follows:

S101: whether the automobile (i.e., the target vehicle) is in the drive running state is determined based on the accelerator pedal opening signal DPedal (i.e., whether the current required power is 0 is determined).

S201: when the accelerator pedal opening dpedal=0 (i.e., the current required power is 0) is determined, it is further determined whether the vehicle speed V is zero.

When the vehicle speed V=0 is determined, whether the current state of charge SOC of the power battery is between the minimum value SOC is further determined _Min And the set lower limit value SOC _Low Between them.

When determining that the current state of charge (SOC) of the power battery is between the minimum value (SOC) _Min And the set lower limit value SOC _Low Between, i.e. SOC _Min ＜SOC≤SOC _Low The vehicle is parked and idling, the hydrogen internal combustion engine 1 is operated at an idling working condition working point E, and the energy flow is as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31 and power battery 4.

S202: when determining that the current state of charge SOC of the power battery is greater than the set lower limit value SOC _Low The car is parked.

S203: when the vehicle speed V is more than 0, further judging whether the current state of charge (SOC) of the power battery is between the minimum value (SOC) _Min And the highest value SOC _Max Between them.

When determining that the current state of charge (SOC) of the power battery is between the minimum value (SOC) _Min And the highest value SOC _Max Between, i.e. SOC _Min ＜SOC≤SOC _Max The vehicle recovers energy by the energy flow: wheels 9, reduction gearbox 7, driving motor 5, driving motor controller 32 and power battery 4.

S102: when the accelerator pedal opening DPedal > 0 (i.e., the current required power is not 0), it is further determined whether the current state of charge SOC of the power battery 4 is higher than the set upper limit state of charge value SOC _High 。

S301: when determining that the current state of charge SOC of the power battery 4 is > the set upper limit state of charge value SOC _High Further determining whether the current required power P of the automobile does not exceed the discharge power P of the power battery _4out 。

When the current required power P of the automobile is less than or equal to the discharge power P of the power battery _4out The vehicle is driven purely by the energy flow: power battery 4 → drive motor controller 32 → drive motor 5 → reduction gearbox7→wheel 9.

S302: when determining that the current required power P of the automobile is greater than the discharge power P of the power battery _4out The vehicles are driven in series, and run at a high-speed cruising operating point F, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31, driving motor controller 32, driving motor 5, reduction gearbox 7 and wheels 9.

S103: when the current state of charge (SOC) of the power battery is determined to be between the set lower limit value (SOC) _low And the set upper limit state of charge value SOC _High Between SOC (State of charge) _Low ＜SOC≤SOC _High Further determining whether the current required power P of the automobile does not exceed the discharge power P of the power battery _4out 。

S401: when the current required power P of the automobile is less than or equal to the discharge power P of the power battery _4out The vehicle is driven purely by the energy flow: power battery 4 → drive motor controller 32 → drive motor 5 → reduction gearbox 7 → wheels 9.

S402: when determining that the current required power P of the automobile is greater than the discharge power P of the power battery _4out Further determining whether the current required power P of the automobile is higher than the maximum power P of the economical operation area _1D 。

When determining that the current required power P > the economical operation area maximum power P of the automobile _1D The vehicles are driven in series, and run at a high-speed cruising operating point F, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31, driving motor controller 32, driving motor 5, reduction gearbox 7 and wheels 9; simultaneously, the hydrogen internal combustion engine 1 and the range extender generator 2 charge the power battery 4, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31 and power battery 4.

S403: when determining that the current required power P of the automobile is between the maximum power P in the economical operation area _1D Rechargeable power P with power battery _4in Sum of differences and economic operating area maximum power P _1D Between, i.e. P _1D -P _4in ＜P≤P _1D The vehicles are driven in seriesOperating at the maximum power point D of the economical operation area, the energy flow is as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31, driving motor controller 32, driving motor 5, reduction gearbox 7 and wheels 9; simultaneously, the hydrogen internal combustion engine 1 and the range extender generator 2 charge the power battery 4, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31 and power battery 4.

S404: when the current required power P of the automobile is determined to be between the second power P in the economical operation area _1C Rechargeable power P with power battery _4in Sum of differences and economic operating area maximum power P _1D Rechargeable power P with power battery _4in Difference and economic operation area second power P _1C Between the maximum values of (i.e. P) _1C -P _4in ＜P≤Max(P _1D -P _4in ,P _1C ) The vehicles are driven in series, and run at a second power point C in an economical running area, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31, driving motor controller 32, driving motor 5, reduction gearbox 7 and wheels 9; simultaneously, the hydrogen internal combustion engine 1 and the range extender generator 2 charge the power battery 4, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31 and power battery 4.

S405: when the current required power P of the automobile is determined to be between the third power P in the economical operation area _1B Rechargeable power P with power battery _4in Difference and economic operating region second power P _1C Rechargeable power P with power battery _1C Difference and economic operating region third power P _1B Between the maximum values of (i.e. P) _1B -P _4in ＜P/(η ₇ ·η ₅ ·η ₃ )≤Max(P _1C -P _4in ,P _1B ) The vehicles are driven in series, and run at a third power point B in an economical running area, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31, driving motor controller 32, driving motor 5, reduction gearbox 7 and wheels 9; simultaneously, the hydrogen internal combustion engine 1 and the range extender generator 2 charge the power battery 4, and the energy flows are as follows: hydrogen storage bottle8, a hydrogen internal combustion engine 1, a range extender generator 2, a generator controller 31 and a power battery 4.

S406: when it is determined that the current required power P of the vehicle does not exceed the third power P in the economical operation region _1B Rechargeable power P with power battery _4in Difference and economic operating area minimum power P _1A The maximum value, i.e. P.ltoreq.Max (P _1B -P _4in ,P _1A ) The vehicles are driven in series, and run at the minimum power point A in the economical running area, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31, driving motor controller 32, driving motor 5, reduction gearbox 7 and wheels 9; simultaneously, the hydrogen internal combustion engine 1 and the range extender generator 2 charge the power battery 4, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31 and power battery 4.

S104: when determining that the current state of charge (SOC) of the power battery is between the minimum value (SOC) _Min And the set lower limit value SOC _low Between, i.e. SOC _Min ＜SOC≤SOC _low Further determining whether the current required power P of the automobile is higher than the maximum power P of the economical operation area _1D 。

S501: when determining that the current required power P > the economical operation area maximum power P of the automobile _1D The vehicles are driven in series, and run at a high-speed cruising operating point F, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31, driving motor controller 32, driving motor 5, reduction gearbox 7 and wheels 9; simultaneously, the hydrogen internal combustion engine 1 and the range extender generator 2 charge the power battery 4, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31 and power battery 4.

S502: when determining that the current required power P of the automobile is between the maximum power P in the economical operation area _1D Rechargeable power P with power battery _4in Sum of differences and economic operating area maximum power P _1D Between, i.e. P _1D -P _4in ＜P≤P _1D The vehicles are driven in series, and run at the maximum power point D in the economical running area, and the energy flows are as follows: hydrogen storageBottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31, drive motor controller 32, drive motor 5, reduction gearbox 7 and wheels 9; simultaneously, the hydrogen internal combustion engine 1 and the range extender generator 2 charge the power battery 4, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31 and power battery 4.

S503: when the current required power P of the automobile is determined to be between the second power P in the economical operation area _1C Rechargeable power P with power battery _4in Sum of differences and economic operating area maximum power P _1D Rechargeable power P with power battery _4in Difference and economic operation area second power P _1C Between the maximum values of (i.e. P) _1C -P _4in ＜P≤Max(P _1D -P _4in ,P _1C ) The vehicles are driven in series, and run at a second power point C in an economical running area, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31, driving motor controller 32, driving motor 5, reduction gearbox 7 and wheels 9; simultaneously, the hydrogen internal combustion engine 1 and the range extender generator 2 charge the power battery 4, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31 and power battery 4.

S504: determining that the current power demand P of the vehicle is in the third power P of the economy running region _1B Rechargeable power P with power battery _4in Difference and economic operating region second power P _1C Rechargeable power P with power battery _1C Difference and economic operating region third power P _1B Between the maximum values of (i.e. P) _1B -P _4in ＜P≤Max(P _1C -P _4in ,P _1B ) The vehicles are driven in series, and run at a third power point B in an economical running area, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31, driving motor controller 32, driving motor 5, reduction gearbox 7 and wheels 9; simultaneously, the hydrogen internal combustion engine 1 and the range extender generator 2 charge the power battery 4, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31 and power battery 4.

S505：When it is determined that the current required power P of the vehicle does not exceed the third power P in the economical operation region _1B Rechargeable power P with power battery _4in Difference and economic operating area minimum power P _1A The maximum value, i.e. P.ltoreq.Max (P _1B -P _4in ,P _1A ) The vehicles are driven in series, and run at the minimum power point A in the economical running area, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31, driving motor controller 32, driving motor 5, reduction gearbox 7 and wheels 9; simultaneously, the hydrogen internal combustion engine 1 and the range extender generator 2 charge the power battery 4, and the energy flows are as follows: hydrogen storage bottle 8, hydrogen internal combustion engine 1, range extender generator 2, generator controller 31 and power battery 4.

It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.

From the description of the above embodiments, it will be clear to a person skilled in the art that the method according to the above embodiments may be implemented by means of software plus the necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM (Read-Only Memory)/RAM (Random Access Memory), magnetic disk, optical disk), comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present application.

According to another aspect of the embodiment of the application, a hydrogen internal combustion engine range-extending power system control device for implementing the hydrogen internal combustion engine range-extending power system control method is also provided. Fig. 10 is a block diagram of an alternative hydrogen internal combustion engine range-extending powertrain control device in accordance with an embodiment of the present application, as shown in fig. 10, which may include:

A first acquisition module 21 for acquiring a current required power of the target vehicle;

a second acquisition module 22 for acquiring a current state of charge of a power battery in a hydrogen internal combustion engine range-extending power system of the target vehicle;

the determining module 23 is configured to determine, according to the current required power and the current state of charge, a target operation condition of the range-extending power system of the hydrogen internal combustion engine and an energy flow mode of the range-extending power system of the hydrogen internal combustion engine, where, under any one of the target operation conditions where the hydrogen internal combustion engine is in an operation state, the hydrogen internal combustion engine is used to drive the range extender generator to generate power and supply power to the power battery and/or a driving motor in the range-extending power system of the hydrogen internal combustion engine, and the hydrogen internal combustion engine operates according to an excess air ratio, and the energy flow mode is used to indicate a circulation path of electric energy in the target vehicle;

the control module 24 is used for controlling the range-extending power system of the hydrogen internal combustion engine according to the target operation condition and the energy flow mode.

It should be noted that, the first acquiring module 21 in this embodiment may be used to perform the above-mentioned step P101, the second acquiring module 22 in this embodiment may be used to perform the above-mentioned step P102, the determining module 23 in this embodiment may be used to perform the above-mentioned step P103, and the control module 24 in this embodiment may be used to perform the above-mentioned step P104.

The apparatus in this embodiment may include, in addition to the above-described modules, modules that perform any of the methods of the embodiments of the extended-range power system control method of any of the hydrogen internal combustion engines described above.

It should be noted that the above modules are the same as examples and application scenarios implemented by the corresponding steps, but are not limited to what is disclosed in the above embodiments. It should be noted that the above modules may be implemented as part of an apparatus in a hardware environment implementing the method shown in fig. 1, and may be implemented by software, or may be implemented by hardware, where the hardware environment includes a network environment.

According to still another aspect of the embodiment of the present application, there is also provided an electronic device for implementing the above-mentioned method for controlling a range-extending power system of a hydrogen internal combustion engine, which may be a server, a terminal, or a combination thereof.

According to another embodiment of the present application, there is also provided an electronic apparatus including: as shown in fig. 11, the electronic device may include: the device comprises a processor 1501, a communication interface 1502, a memory 1503 and a communication bus 1504, wherein the processor 1501, the communication interface 1502 and the memory 1503 are in communication with each other through the communication bus 1504.

A memory 1503 for storing a computer program;

the processor 1501, when executing the program stored in the memory 1503, performs the following steps:

step P101, obtaining the current required power of the target vehicle.

Alternatively, in the present embodiment, the above-described communication bus may be a PCI (Peripheral Component Interconnect, peripheral component interconnect standard) bus, or an EISA (Extended Industry Standard Architecture ) bus, or the like. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus. The communication interface is used for communication between the electronic device and other devices.

The Memory may include random access Memory (Random Access Memory, RAM) or may include Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.

The processor may be a general purpose processor and may include, but is not limited to: CPU (Central Processing Unit ), NP (Network Processor, network processor), etc.; but also DSP (Digital Signal Processor ), ASIC (Application Specific Integrated Circuit, application specific integrated circuit), FPGA (Field-Programmable Gate Array, field programmable gate array) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components.

The embodiment of the application also provides a computer readable storage medium, wherein the storage medium comprises a stored program, and the program executes the method steps of the method embodiment.

Alternatively, in the present embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a U disk, ROM, RAM, a mobile hard disk, a magnetic disk or an optical disk.

The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

The integrated units in the above embodiments may be stored in the above-described computer-readable storage medium if implemented in the form of software functional units and sold or used as separate products. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing one or more computer devices (which may be personal computers, servers or network devices, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.

In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.

In several embodiments provided by the present application, it should be understood that the disclosed client may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, such as the division of the units, is merely a logical function division, and may be implemented in another manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution provided in the present embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.

Claims

1. A range-extending power system for a hydrogen internal combustion engine, comprising: the device comprises a hydrogen internal combustion engine, a range extender generator, a motor controller, a power battery and a driving motor;

2. The hydrogen internal combustion engine range-extending power system according to claim 1, wherein: further comprises: a vehicle-mounted charger and a reduction gearbox;

3. The hydrogen internal combustion engine range-extending power system according to claim 1, wherein:

4. A method for controlling a range-extending power system of a hydrogen internal combustion engine, comprising:

determining a target operation condition of a range-extending power system of the hydrogen internal combustion engine and an energy flow mode of the range-extending power system of the hydrogen internal combustion engine according to the current required power and the current charge state, wherein the hydrogen internal combustion engine is used for driving a range extender generator to generate power and supplying power to a power battery and/or a driving motor in the range-extending power system of the hydrogen internal combustion engine under any one of the target operation conditions that the hydrogen internal combustion engine in the range-extending power system of the hydrogen internal combustion engine is in an operation state, the hydrogen internal combustion engine operates according to an excessive air coefficient, and the energy flow mode is used for indicating a circulation path of electric energy in the target vehicle;

5. The hydrogen internal combustion engine range-extending powertrain control method according to claim 4, wherein the obtaining the current required power of the target vehicle includes:

acquiring an opening signal of an accelerator pedal of a target vehicle;

judging the target power of the target vehicle according to the opening signal;

6. The method for controlling a range-extending power system of a hydrogen internal combustion engine according to claim 4, wherein determining a target operating condition of the range-extending power system of the hydrogen internal combustion engine and an energy flow pattern of the range-extending power system of the hydrogen internal combustion engine according to the current required power and the current state of charge comprises:

acquiring the current running state of a target vehicle;

7. The method for controlling a range-extending power system of a hydrogen internal combustion engine according to claim 4, wherein determining a target operating condition of the range-extending power system of the hydrogen internal combustion engine and an energy flow pattern of the range-extending power system of the hydrogen internal combustion engine according to the current required power and the current state of charge comprises:

8. The method for controlling a range-extending power system of a hydrogen internal combustion engine according to claim 4, wherein determining a target operating condition of the range-extending power system of the hydrogen internal combustion engine and an energy flow pattern of the range-extending power system of the hydrogen internal combustion engine according to the current required power and the current state of charge comprises:

9. The method for controlling a range-extending power system of a hydrogen internal combustion engine according to claim 4, wherein determining a target operating condition of the range-extending power system of the hydrogen internal combustion engine and an energy flow pattern of the range-extending power system of the hydrogen internal combustion engine according to the current required power and the current state of charge comprises:

10. A hydrogen internal combustion engine extended range power system control device, characterized by comprising:

11. An electronic device comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus, characterized in that,

the memory is used for storing a computer program;

the processor being adapted to perform the method steps of any of claims 4 to 9 by running the computer program stored on the memory.

12. An automobile, comprising: a hydrogen internal combustion engine extended range power system as claimed in any one of claims 1 to 3 and an electronic device as claimed in claim 11.

13. A computer-readable storage medium, characterized in that the storage medium has stored therein a computer program, wherein the computer program is arranged to perform the method steps of any of claims 4 to 9 when run.