CN117601717A - Fuel cell control method, device, vehicle and storage medium - Google Patents

Fuel cell control method, device, vehicle and storage medium Download PDF

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Publication number
CN117601717A
CN117601717A CN202311589312.6A CN202311589312A CN117601717A CN 117601717 A CN117601717 A CN 117601717A CN 202311589312 A CN202311589312 A CN 202311589312A CN 117601717 A CN117601717 A CN 117601717A
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CN
China
Prior art keywords
power
vehicle
fuel cell
state
fuel
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Pending
Application number
CN202311589312.6A
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Chinese (zh)
Inventor
郭凯风
耿超
程龙
田娟
景帅帅
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Hebei Changzheng Automobile Manufacturing Co ltd
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Hebei Changzheng Automobile Manufacturing Co ltd
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Priority to CN202311589312.6A priority Critical patent/CN117601717A/en
Publication of CN117601717A publication Critical patent/CN117601717A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Fuel Cell (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The application is applicable to the technical field of vehicles and provides a fuel cell control method, a fuel cell control device, a vehicle and a storage medium. The fuel cell control method includes: acquiring a high-voltage running state of the vehicle and state parameters of a fuel cell system when the vehicle is in a power-on parking state, a fuel-electricity mode of the vehicle is started and a power-up request is received; determining whether a power supplementing condition is met according to a high-voltage running state of the vehicle and state parameters of the fuel cell system; if the power supplementing condition is met, acquiring state parameters of the power battery system, determining target output power of the fuel battery according to the state parameters of the fuel battery system, the state parameters of the power battery and the power supplementing request, and controlling the fuel battery to charge the power battery with the target output power, wherein the fuel battery can operate with proper power at the moment, so that the fuel battery is in a high-efficiency operation area, and the consumption of fuel is reduced.

Description

Fuel cell control method, device, vehicle and storage medium
Technical Field
The application belongs to the technical field of vehicles, and particularly relates to a fuel cell control method, a fuel cell control device, a vehicle and a storage medium.
Background
Along with the exhaustion of global fossil energy, the traditional gasoline car using gasoline as fuel is gradually replaced by an electric car, and the electric car stores electric energy by using a power battery, so that the electric car has limited electric energy storage capacity due to space and cost limitation, and the cruising ability of the electric car is severely restricted.
In order to improve the endurance of the electric automobile, a set of fuel cell generator is added on the basis of the electric automobile, and the fuel cell generator can generate electricity to drive the automobile or charge a power battery. When the load of the vehicle is large, the fuel cell full rated power output is required to power the vehicle, and the fuel cell is inefficient at the full rated power output, resulting in an increase in fuel consumption of the vehicle.
Disclosure of Invention
The embodiment of the application provides a fuel cell control method, a device, a vehicle and a storage medium, which can solve the problem that fuel consumption is increased because the full rated power output of the fuel cell provides power for the vehicle when the load of the vehicle is large.
In a first aspect, an embodiment of the present application provides a fuel cell control method, including:
acquiring a high-voltage running state of the vehicle and state parameters of a fuel cell system when the vehicle is in a power-on parking state, a fuel-electricity mode of the vehicle is started and a power-up request is received;
determining whether a power-up condition is satisfied according to a high-voltage operation state of the vehicle and a state parameter of the fuel cell system;
and if the power supplementing condition is met, acquiring the state parameter of the power battery system, determining the target output power of the fuel battery according to the state parameter of the fuel battery system, the state parameter of the power battery and the power supplementing request, and controlling the fuel battery to charge the power battery with the target output power.
In a possible implementation manner of the first aspect, the state parameters of the fuel cell system include a state of a contactor and an operating state of a fuel cell;
the determining whether the power supply condition is satisfied according to the high-voltage operation state of the vehicle and the state parameter of the fuel cell system includes:
and if the high-voltage running state of the vehicle is normal, the contactor is in a closed state, and the fuel cell is in a standby state, determining that the power supplementing condition is met.
In a possible implementation manner of the first aspect, the fuel cell control method further includes:
if the vehicle is in a high-voltage running state, the vehicle has no three-stage fault, the vehicle has no high-voltage request, and the high-voltage running state of the vehicle is determined to be normal.
In a possible implementation manner of the first aspect, the state data of the power battery system includes a remaining power of the power battery and an allowable recharging power of the power battery, and the state parameter of the fuel battery system includes a remaining amount of fuel;
determining a target output power of the fuel cell according to the state parameter of the fuel cell system, the state parameter of the power cell and the power supplementing request, and controlling the fuel cell to charge the power cell with the target output power, wherein the method comprises the following steps:
when the residual electric quantity of the power battery is smaller than or equal to the preset electric quantity, the allowable recharging power of the power battery is larger than or equal to the preset power, and the residual quantity of the fuel is larger than or equal to the preset residual quantity, determining the target output power of the fuel battery according to the power supplementing request;
the fuel cell is controlled to charge the power cell at the target output power.
In a possible implementation manner of the first aspect, the fuel cell control method further includes:
when the vehicle is in a power-on parking state, the fuel-electricity mode of the vehicle is started and a power-up request is received, an enabling signal is sent to accessories on the vehicle, a non-enabling signal is sent to a motor controller, and a preparation indicator lamp on the vehicle is controlled to be turned off.
In a possible implementation manner of the first aspect, the fuel cell control method further includes:
when the vehicle is in a power-down state and a power-up request is received, waking up a whole vehicle controller, a fuel cell system, a power cell system and a five-in-one controller, and performing low-voltage self-test and high-voltage self-test;
when the low-voltage self-test and the high-voltage self-test are successful, high-voltage power-on is executed, so that a contactor in the fuel cell system is closed;
and after the high-voltage power-on is completed, executing the step of determining whether the power-on condition is met according to the high-voltage running state of the vehicle and the state parameters of the fuel cell system.
In a possible implementation manner of the first aspect, the fuel cell control method further includes:
when the high voltage is powered up, an enable signal is sent to an accessory on the vehicle and a disable signal is sent to the motor controller.
In a second aspect, embodiments of the present application provide a fuel cell control apparatus, including:
the acquisition module is used for acquiring the high-voltage running state of the vehicle and the state parameters of the fuel cell system when the vehicle is in a power-on parking state, the fuel-electricity mode of the vehicle is started and the power-up request is received;
a condition determining module for determining whether a power supplementing condition is satisfied according to a high-voltage operation state of the vehicle and a state parameter of the fuel cell system;
and the first control module is used for acquiring the state parameter of the power battery system if the power supplementing condition is determined to be met, determining the target output power of the fuel battery according to the state parameter of the fuel battery system, the state parameter of the power battery and the power supplementing request, and controlling the fuel battery to charge the power battery with the target output power.
In a third aspect, embodiments of the present application provide a vehicle comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the method of any one of the first aspects when executing the computer program.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method of any one of the first aspects.
In a fifth aspect, embodiments of the present application provide a computer program product for, when run on a vehicle, causing the vehicle to perform the method of any one of the first aspects above.
Compared with the prior art, the embodiment of the application has the beneficial effects that:
when the vehicle is in an electrified parking state, the vehicle has no power requirement, the overall power requirement of the vehicle is small, and the fuel cell can work to provide electric energy after the fuel mode of the vehicle is started. And if the power supplementing request is received, acquiring the high-voltage running state of the vehicle and the state parameters of the fuel cell system. And then analyzing the high-voltage running state of the vehicle and the state parameters of the fuel cell system to determine whether the power supplementing condition is satisfied. And if the power supplementing condition is met, acquiring the state parameter of the power battery system, determining the target output power of the fuel battery according to the state parameter of the fuel battery system, the state parameter of the power battery and the power supplementing request, and controlling the fuel battery to charge the power battery with the target output power. Because the vehicle has no power demand when the vehicle is in the power-on parking state, the overall power demand of the vehicle is smaller, and the fuel cell does not need full rated power output, at the moment, the fuel cell can charge the power cell with the target output power in the high-efficiency operation area, so that the fuel cell is in the high-efficiency operation area, and the fuel consumption is reduced.
It will be appreciated that the advantages of the second to fifth aspects may be found in the relevant description of the first aspect, and are not described here again.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a fuel cell control method according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart of a fuel cell control method according to another embodiment of the present application;
fig. 3 is a flow chart of a fuel cell control method according to another embodiment of the present application;
fig. 4 is a schematic structural view of a fuel cell control device provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a vehicle according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in this specification and the appended claims, the term "if" may be interpreted in context as "when …" or "upon" or "in response to determining" or "in response to detecting". Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
In addition, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
Currently, some commercial vehicles are provided with a fuel cell and a power battery at the same time, and the fuel cell can consume fuel to generate electricity so as to drive the vehicle or charge the power battery. However, the rated power of the fuel cell is low, usually 110KW to 150KW, and the power range corresponding to the power efficient operation area of the fuel cell is 15KW to 65KW. The commercial vehicle has the characteristics of large load, high wind resistance and low transmission efficiency, so that the required power of the vehicle is larger, for example, 49 tons when a heavy truck is fully loaded, the rated power of a driving motor of the traction head is at least more than 180KW, the fuel cell is required to run at full rated power or over rated power for a long time, and the efficiency is lower when the fuel cell runs at full rated power, so that the fuel consumption is larger. Meanwhile, in the running process of the vehicle, the fuel cell can be subjected to high-frequency load changing, high-frequency start-stop and high-power quick load pulling, so that the performance attenuation of the fuel cell is accelerated, and the service life of the fuel cell is shortened.
Based on the above-described problems, the present embodiment provides a fuel cell control method, as shown in fig. 1, including steps S101 to S103.
Step S101, when the vehicle is in a power-on parking state, a fuel-electricity mode of the vehicle is turned on, and a power-up request is received, a high-voltage running state of the vehicle and a state parameter of the fuel cell system are obtained.
Specifically, whether the vehicle is in a power-ON state or a power-off state can be determined by detecting the key signal, and when the key signal of the vehicle is in an ON gear, the vehicle is determined to be in the power-ON state; if the key signal is in the non-ON gear, the vehicle is determined to be in a power-down state.
And after the vehicle is determined to be in the power-on state, detecting whether the vehicle is in the fuel-air mode. The operation modes of the vehicle include a pure electric mode and a fuel electric mode, and when the vehicle is in the pure electric mode, the power battery alone drives the vehicle, and the fuel battery does not operate. When the vehicle is in a fuel-electric mode, the fuel cell operation drives the vehicle or charges the power cell. The user can select the operation mode of the vehicle by operating a mode switch on the vehicle, and the controller on the vehicle can recognize whether the fuel-air mode of the vehicle is on by recognizing the gear of the mode switch.
And after the vehicle is in the power-on state and the fuel-air mode is started, determining whether a power-up request is received. The vehicle can be provided with a power-supplementing switch, and a user sends a power-supplementing request by operating the power-supplementing switch. If the controller on the vehicle receives the power up request, it is known that the user needs the fuel cell to charge the power cell at this time.
And after determining that the vehicle is in a power-on state and the fuel-electricity mode is started and receiving a power-up request, judging whether the vehicle is in a parking state. Whether the vehicle is in a parking state or not can be determined by detecting the gear and the running speed of the vehicle, and when the gear of the vehicle is in the N gear and the running speed of the vehicle is zero, the vehicle is determined to be in the parking state; when the gear of the vehicle is a forward gear, a reverse gear, or the running speed of the vehicle is not equal to zero, the vehicle is determined to be in a non-parking state. When the vehicle is in a parking state, the vehicle has no power requirement, the power requirement of the vehicle is smaller, and the fuel cell can work with the power corresponding to the high-efficiency running area, so that the power requirement of the vehicle is met.
And when the vehicle is in a power-on parking state, a fuel-electricity mode of the vehicle is started and a power-up request is received, acquiring a high-voltage running state of the vehicle and state parameters of a fuel cell system.
Step S102, determining whether the power replenishment condition is satisfied according to the high-voltage operation state of the vehicle and the state parameter of the fuel cell system.
Specifically, by analyzing the high-voltage running state of the vehicle and the state parameters of the fuel cell system, it is determined whether the current state of the vehicle can control the fuel cell to charge the power cell, that is, whether the power replenishment condition is satisfied.
Exemplary state parameters of the fuel cell system include the state of the contactor and the operating state of the fuel cell.
Firstly, judging whether a contactor in a fuel cell system is closed, and when the contactor is in a closed state, the fuel cell works to generate electricity so as to charge a power cell.
And after the contactor is determined to be in the closed state, judging whether the running state of the vehicle is normal or not. When judging whether the high-voltage running state of the vehicle is normal, whether the vehicle is in the high-voltage running state, whether the vehicle has three-stage faults or not and whether the vehicle has a high-voltage descending request or not can be identified. If the vehicle is in a high-voltage running state, the vehicle has no three-level fault and has no high-voltage request, the high-voltage running state of the vehicle is determined to be normal.
After the contactor is determined to be in the closed state and the high-voltage operation state of the vehicle is normal, it is determined whether the operation state of the fuel cell is in the standby state. When the fuel cell has no fault, the working state of the fuel cell can be changed into a standby state after receiving the power supplementing request, and the fuel cell can work at any time. And if the high-voltage running state of the vehicle is normal, the contactor is in a closed state, and the fuel cell is in a standby state, determining that the power supplementing condition is met. If the power supplementing condition is met, an enabling signal can be sent to the fuel cell controller, and at the moment, the fuel cell controller can control the fuel cell to work to generate power so as to charge the power cell.
Step S103, if the power supplementing condition is met, acquiring the state parameter of the power battery system, determining the target output power of the fuel battery according to the state parameter of the fuel battery system, the state parameter of the power battery and the power supplementing request, and controlling the fuel battery to charge the power battery with the target output power.
Specifically, if it is determined that the power replenishment condition is satisfied, it is indicated that the fuel cell can charge the power cell. At the moment, the state parameters of the power battery system are acquired, the target output power of the fuel battery is determined according to the state parameters of the fuel battery system, the state parameters of the power battery and the power supplementing request, and the fuel battery is controlled to charge the power battery with the target output power. Because the vehicle has no power demand when the vehicle is in the power-on parking state, the overall power demand of the vehicle is smaller, and the fuel cell does not need full rated power output, at the moment, the fuel cell can charge the power cell with the target output power in the high-efficiency operation area, so that the fuel cell is in the high-efficiency operation area, and the fuel consumption is reduced.
The rated power of the fuel cell is 150KW, and the power range corresponding to the power efficient operation area of the fuel cell is 15KW-65KW. When the vehicle is in an electrified parking state, the vehicle has no power requirement, the power requirement of the whole vehicle is smaller, if a power supplementing request is received, and when the current state of the vehicle meets the power supplementing condition, the fuel cell can be controlled to charge the power cell by 15KW-65KW power generation, so that the fuel cell works in a high-efficiency operation area, the conversion efficiency of the fuel cell is improved, and the consumption of fuel is reduced.
In some embodiments, the status data of the power cell system includes a remaining charge of the power cell and an allowable recharging power of the power cell, and the status parameter of the fuel cell system includes a remaining amount of fuel. As shown in fig. 2, step S103 may include step S1031 and step S1032.
In step S1031, when the remaining power of the power battery is less than or equal to the preset power, the allowable recharging power of the power battery is greater than or equal to the preset power, and the remaining amount of fuel is greater than or equal to the preset remaining amount, determining the target output power of the fuel battery according to the power supplementing request.
Specifically, the remaining capacity of the power battery is smaller than or equal to the preset electric capacity, which indicates that the remaining capacity of the power battery is smaller, and the power battery has a charging requirement. In the process of charging the power battery by the fuel battery, the allowable recharging power of the power battery is larger than or equal to the preset power, which indicates that the fuel battery can rapidly charge the power battery. The remaining amount of fuel is greater than or equal to the preset remaining amount, which indicates that the fuel cell can be ensured to work normally at this time, and the power cell is charged. When the residual electric quantity of the power battery is smaller than or equal to the preset electric quantity, the allowable recharging power of the power battery is larger than or equal to the preset power, and the residual quantity of the fuel is larger than or equal to the preset residual quantity, the fuel battery can generate electricity to supply power for the power battery, and at the moment, the target output power of the fuel battery is determined according to the power supplementing request.
The vehicle can be provided with a power supplementing switch, the power supplementing switch can be provided with a plurality of gears, and each gear corresponds to the working power of one fuel cell. The user operates the power-up switch to send a power-up request, and the power-up request carries the responsive power information, so that the target output power of the fuel cell can be determined according to the power-up request.
For example, the power supplementing switch is provided with 0 gear, 1 gear, and 2 gear. The user can control the gear of the power-up switch according to the actual demand so as to send a corresponding power-up request. When the user controls the power-up switch to be switched to the 0 gear, the corresponding working power of the fuel cell is zero, and the determined target output power of the fuel cell is zero. When the user controls the power supplementing switch to be switched to 1 gear, the corresponding working power of the fuel cell is 25KW, and the determined target output power of the fuel cell is 25KW. When the user controls the power supplementing switch to be switched to 2 gears, the corresponding working power of the fuel cell is 45KW, and the determined target output power of the fuel cell is 45KW.
It should be noted that, the designer may design the working power of the fuel cell corresponding to each gear according to the actual requirement, but needs to ensure that the working power of the fuel cell corresponding to each gear is in a high-efficiency operation area, for example, the working power of the fuel cell corresponding to the high-efficiency operation area is 15KW-65KW, and the working power of the fuel cell corresponding to each gear is between 15KW-65KW.
Step S1032, the fuel cell is controlled to charge the power cell at the target output power.
Specifically, after the target output power is determined, the fuel cell is controlled to work at the target output power to generate electricity, and the power cell is charged. In the process of charging the power battery, the fuel battery can be operated with the power corresponding to the high-efficiency operation area, the conversion efficiency of the fuel battery is improved, and the effect of reducing the fuel consumption is realized.
In some embodiments, the fuel cell control method further comprises: when the vehicle is in a power-on parking state, the fuel-electricity mode of the vehicle is started and a power-up request is received, an enabling signal is sent to accessories on the vehicle, a non-enabling signal is sent to a motor controller, and a preparation indicator lamp on the vehicle is controlled to be turned off.
Specifically, when the vehicle is in a power-on parking state, a fuel-electricity mode of the vehicle is started and a power-up request is received, the fuel cell is controlled to charge the power battery under the condition that the power-up condition is determined to be met. In the process of charging the power battery by the fuel battery, a user may need to use the accessory on the vehicle, so that an enabling signal is sent to the accessory on the vehicle, the accessory on the vehicle is in a usable state, the requirement of the user is met, and the experience of the user is improved. Accessories on the vehicle may include DCDC converters, air conditioners, PTC heaters, air pumps, and the like. Meanwhile, a non-enabling signal is sent to the motor controller, so that the motor is ensured not to rotate, namely, the vehicle is ensured not to have power requirements at the moment, and the fuel cell can work in a high-efficiency running area. When the user switches the gear or steps on the electric door, an enabling signal is sent to the motor controller, and at the moment, the motor can rotate to drive the vehicle to move. The vehicle is also provided with a preparation indicator lamp, after the power-on self-test of the vehicle is successful, the preparation indicator lamp is lightened, and after a user observes the lightened preparation indicator lamp, the vehicle is known to normally run. In the process of charging the power battery by using the fuel battery, the preparation indicator lamp on the vehicle is controlled to be turned off, so that the user is prevented from habitually observing that the turned-on preparation indicator lamp controls the vehicle to run, and the stable charging of the power battery by using the fuel battery is ensured.
In some embodiments, as shown in fig. 3, the fuel cell control method further includes steps S201 to S203.
Step S201, when the vehicle is in a power-down state and a power-up request is received, waking up the whole vehicle controller, the fuel cell system, the power cell system and the five-in-one controller, and performing low-voltage self-test and high-voltage self-test.
Specifically, when the vehicle is in a power-down state, namely, the key signal of the vehicle is in a non-ON gear, the vehicle has no power requirement, and if a power-supplementing request is received at the moment, the whole vehicle controller, the fuel cell system, the power cell system and the five-in-one controller are awakened, so that the vehicle has the condition that the fuel cell charges the power cell. And after the whole vehicle controller, the fuel cell system, the power cell system and the five-in-one controller are awakened, performing low-voltage self-test and high-voltage self-test, and checking whether a circuit of the vehicle has faults or not so as to determine whether the condition that the fuel cell charges the power cell is met or not.
And when the vehicle is in a power-down state, if the quick charge wake-up signal is valid, namely the vehicle is in a quick charge state, the power-up request is forbidden. When the vehicle is in a fast charge state, even if a user presses a power-up switch to send a power-up request, a controller on the vehicle can determine that the power-up request is an invalid signal, and the fuel cell is not allowed to charge the power battery.
Step S202, when the low-voltage self-test and the high-voltage self-test are successful, high-voltage power-up is executed to close a contactor in the fuel cell system.
Specifically, when the low-voltage self-test and the high-voltage self-test are successful, the low-voltage circuit and the high-voltage circuit on the vehicle are normal, and the high-voltage power-on is executed at the moment, so that the contactor in the fuel cell system is closed, and the working condition of the fuel cell is met.
Step S203 is performed to determine whether the power-up condition step is satisfied according to the high-voltage operation state of the vehicle and the state parameters of the fuel cell system, when the high-voltage power-up is completed.
Specifically, after the high-voltage power-up of the vehicle is completed, step S102 is executed, that is, whether the power-up condition is satisfied is determined according to the high-voltage running state of the vehicle and the state parameter of the fuel cell system, and if the power-up condition is satisfied, the fuel cell is controlled to charge the power cell. Because the vehicle is in the power-down state, the vehicle has no power demand, and the power demand of the vehicle is smaller, the fuel cell can charge the power cell by power generation in a high-efficiency operation area, the conversion efficiency of the fuel cell is improved, and the effect of reducing fuel consumption is realized.
In some embodiments, the fuel cell control method further comprises: when the high voltage is powered up, an enable signal is sent to an accessory on the vehicle and a disable signal is sent to the motor controller.
Specifically, during the process of charging the power battery by the fuel cell, the user may need to use the accessory on the vehicle, and thus send an enable signal to the accessory on the vehicle, so that the accessory on the vehicle is in a usable state, and the accessory on the vehicle may include a DCDC converter, an air conditioner, a PTC heater, an air pump, and the like. Meanwhile, a non-enabling signal is sent to the motor controller, so that the motor is ensured not to rotate, namely, the vehicle is ensured not to have power requirements at the moment, and the fuel cell can work in a high-efficiency running area. When the user switches the gear or steps on the electric door, an enabling signal is sent to the motor controller, and at the moment, the motor can rotate to drive the vehicle to move.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic of each process, and should not limit the implementation process of the embodiment of the present application in any way.
Fig. 4 shows a schematic structural diagram of a fuel cell control device provided in an embodiment of the present application. Referring to fig. 4, the fuel cell control apparatus includes:
an obtaining module 41, configured to obtain a high-voltage running state of the vehicle and a state parameter of the fuel cell system when the vehicle is in a power-on parking state, a fuel-electricity mode of the vehicle is turned on, and a power-up request is received;
a condition determining module 42 for determining whether a power replenishment condition is satisfied based on a high-voltage operation state of the vehicle and a state parameter of the fuel cell system;
the first control module 43 is configured to obtain a state parameter of the power battery system, determine a target output power of the fuel battery according to the state parameter of the fuel battery system, the state parameter of the power battery, and the power replenishment request, and control the fuel battery to charge the power battery with the target output power if it is determined that the power replenishment condition is satisfied.
In some embodiments, the state parameters of the fuel cell system include a state of a contactor and an operating state of a fuel cell;
the condition determination module 42 is also configured to:
the determining whether the power supply condition is satisfied according to the high-voltage operation state of the vehicle and the state parameter of the fuel cell system includes:
and if the high-voltage running state of the vehicle is normal, the contactor is in a closed state, and the fuel cell is in a standby state, determining that the power supplementing condition is met.
In some embodiments, the fuel cell control apparatus further includes:
the running state determining module is used for determining that the high-voltage running state of the vehicle is normal if the vehicle is in the high-voltage running state, the vehicle has no three-level fault and the vehicle has no high-voltage request.
In some embodiments, the status data of the power cell system includes a remaining power of the power cell and an allowable recharging power of the power cell, and the status parameter of the fuel cell system includes a remaining amount of fuel;
the first control module 43 is also for:
when the residual electric quantity of the power battery is smaller than or equal to the preset electric quantity, the allowable recharging power of the power battery is larger than or equal to the preset power, and the residual quantity of the fuel is larger than or equal to the preset residual quantity, determining the target output power of the fuel battery according to the power supplementing request;
the fuel cell is controlled to charge the power cell at the target output power.
In some embodiments, the fuel cell control apparatus further includes:
and the second control module is used for sending an enabling signal to accessories on the vehicle when the vehicle is in a power-on parking state, the fuel-electricity mode of the vehicle is started and the power-up request is received, sending a non-enabling signal to the motor controller and controlling the ready indicator lamp on the vehicle to be turned off.
In some embodiments, the fuel cell control apparatus further includes:
the wake-up self-checking module is used for waking up the whole vehicle controller, the fuel cell system, the power cell system and the five-in-one controller when the vehicle is in a power-down state and a power-up request is received, and performing low-voltage self-checking and high-voltage self-checking;
the high-voltage power-on module is used for executing high-voltage power-on after the low-voltage self-test and the high-voltage self-test are successful, so that a contactor in the fuel cell system is closed;
and the execution module is used for executing the step of determining whether the power-up condition is met according to the high-voltage running state of the vehicle and the state parameters of the fuel cell system after the high-voltage power-up is completed.
In some embodiments, the fuel cell control apparatus further includes:
and the third control module is used for sending an enabling signal to accessories on the vehicle and sending a non-enabling signal to the motor controller after the high-voltage power-on is completed.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment 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, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
Fig. 5 is a schematic structural diagram of a vehicle according to an embodiment of the present application. As shown in fig. 5, the vehicle 5 of this embodiment may include: at least one processor 50 (only one processor 50 is shown in fig. 5), a memory 51 and a computer program 52 stored in the memory 51 and executable on the at least one processor 50, the processor 50 implementing the steps of any of the various method embodiments described above, e.g. steps S101 to S103 in the embodiment shown in fig. 1, when executing the computer program 52. Alternatively, the processor 50, when executing the computer program 52, performs the functions of the modules/units of the apparatus embodiments described above, such as the functions of the modules 41 to 43 shown in fig. 4.
By way of example, the computer program 52 may be partitioned into one or more modules/units that are stored in the memory 51 and executed by the processor 50 to complete the present application. The one or more modules/units may be a series of instruction segments of the computer program 52 capable of performing a specific function for describing the execution of the computer program 52 in the vehicle 5.
The present embodiments also provide a computer readable storage medium storing a computer program 52, which computer program 52, when executed by a processor 50, implements steps that may be implemented in the various method embodiments described above.
Embodiments of the present application provide a computer program product that, when run on a vehicle, causes the vehicle to execute the steps that enable the implementation of the method embodiments described above.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. With this understanding, the present application implements all or part of the flow of the method of the above-described embodiments, and may be implemented by a computer program 52 to instruct related hardware, where the computer program 52 may be stored in a computer readable storage medium, and the computer program 52 may implement the steps of the method embodiments described above when executed by the processor 50. The computer program 52 comprises computer program code, which may be in source code form, object code form, executable file or some intermediate form, etc. The computer readable medium may include at least: any entity or device capable of carrying the computer program code to the terminal, a recording medium, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunication signal, and a software distribution medium. Such as a U-disk, removable hard disk, magnetic or optical disk, etc. In some jurisdictions, computer readable media may not be electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/network device and method may be implemented in other manners. For example, the apparatus/network device embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical functional division, and there may be additional divisions in actual implementation, e.g., multiple units or components may be combined or 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 may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical 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 of this embodiment.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims (10)

1. A fuel cell control method, characterized by comprising:
acquiring a high-voltage running state of the vehicle and state parameters of a fuel cell system when the vehicle is in a power-on parking state, a fuel-electricity mode of the vehicle is started and a power-up request is received;
determining whether a power-up condition is satisfied according to a high-voltage operation state of the vehicle and a state parameter of the fuel cell system;
and if the power supplementing condition is met, acquiring the state parameter of the power battery system, determining the target output power of the fuel battery according to the state parameter of the fuel battery system, the state parameter of the power battery and the power supplementing request, and controlling the fuel battery to charge the power battery with the target output power.
2. The fuel cell control method according to claim 1, wherein the state parameters of the fuel cell system include a state of a contactor and an operating state of a fuel cell;
the determining whether the power supply condition is satisfied according to the high-voltage operation state of the vehicle and the state parameter of the fuel cell system includes:
and if the high-voltage running state of the vehicle is normal, the contactor is in a closed state, and the fuel cell is in a standby state, determining that the power supplementing condition is met.
3. The fuel cell control method according to claim 2, characterized in that the fuel cell control method further comprises:
if the vehicle is in a high-voltage running state, the vehicle has no three-stage fault, the vehicle has no high-voltage request, and the high-voltage running state of the vehicle is determined to be normal.
4. The fuel cell control method according to claim 1, wherein the state data of the power cell system includes a remaining amount of the power cell and an allowable recharging power of the power cell, and the state parameter of the fuel cell system includes a remaining amount of the fuel;
determining a target output power of the fuel cell according to the state parameter of the fuel cell system, the state parameter of the power cell and the power supplementing request, and controlling the fuel cell to charge the power cell with the target output power, wherein the method comprises the following steps:
when the residual electric quantity of the power battery is smaller than or equal to the preset electric quantity, the allowable recharging power of the power battery is larger than or equal to the preset power, and the residual quantity of the fuel is larger than or equal to the preset residual quantity, determining the target output power of the fuel battery according to the power supplementing request;
the fuel cell is controlled to charge the power cell at the target output power.
5. The fuel cell control method according to claim 1, characterized in that the fuel cell control method further comprises:
when the vehicle is in a power-on parking state, the fuel-electricity mode of the vehicle is started and a power-up request is received, an enabling signal is sent to accessories on the vehicle, a non-enabling signal is sent to a motor controller, and a preparation indicator lamp on the vehicle is controlled to be turned off.
6. The fuel cell control method according to any one of claims 1 to 5, characterized in that the fuel cell control method further comprises:
when the vehicle is in a power-down state and a power-up request is received, waking up a whole vehicle controller, a fuel cell system, a power cell system and a five-in-one controller, and performing low-voltage self-test and high-voltage self-test;
when the low-voltage self-test and the high-voltage self-test are successful, high-voltage power-on is executed, so that a contactor in the fuel cell system is closed;
and after the high-voltage power-on is completed, executing the step of determining whether the power-on condition is met according to the high-voltage running state of the vehicle and the state parameters of the fuel cell system.
7. The fuel cell control method according to claim 6, characterized in that the fuel cell control method further comprises:
when the high voltage is powered up, an enable signal is sent to an accessory on the vehicle and a disable signal is sent to the motor controller.
8. A fuel cell control apparatus characterized by comprising:
the acquisition module is used for acquiring the high-voltage running state of the vehicle and the state parameters of the fuel cell system when the vehicle is in a power-on parking state, the fuel-electricity mode of the vehicle is started and the power-up request is received;
a condition determining module for determining whether a power supplementing condition is satisfied according to a high-voltage operation state of the vehicle and a state parameter of the fuel cell system;
and the first control module is used for acquiring the state parameter of the power battery system if the power supplementing condition is determined to be met, determining the target output power of the fuel battery according to the state parameter of the fuel battery system, the state parameter of the power battery and the power supplementing request, and controlling the fuel battery to charge the power battery with the target output power.
9. A vehicle comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 7 when the computer program is executed.
10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the method according to any one of claims 1 to 7.
CN202311589312.6A 2023-11-27 2023-11-27 Fuel cell control method, device, vehicle and storage medium Pending CN117601717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311589312.6A CN117601717A (en) 2023-11-27 2023-11-27 Fuel cell control method, device, vehicle and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311589312.6A CN117601717A (en) 2023-11-27 2023-11-27 Fuel cell control method, device, vehicle and storage medium

Publications (1)

Publication Number Publication Date
CN117601717A true CN117601717A (en) 2024-02-27

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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN117601717A (en)

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