CN115352322A - Control method, processor and device for hydrogen fuel cell vehicle - Google Patents

Control method, processor and device for hydrogen fuel cell vehicle Download PDF

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Publication number
CN115352322A
CN115352322A CN202210955650.6A CN202210955650A CN115352322A CN 115352322 A CN115352322 A CN 115352322A CN 202210955650 A CN202210955650 A CN 202210955650A CN 115352322 A CN115352322 A CN 115352322A
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vehicle
fuel cell
state
hydrogen fuel
electric quantity
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CN115352322B (en
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樊钊
付玲
刘延斌
李伟
张彪
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Zoomlion Heavy Industry Science and Technology Co Ltd
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Zoomlion Heavy Industry Science and Technology Co Ltd
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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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/75—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using propulsion power supplied by both fuel cells and batteries

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

Abstract

The present application relates to the field of hydrogen fuel cell vehicles, and in particular, to a control method, processor and apparatus for a hydrogen fuel cell vehicle. The method comprises the following steps: under the condition that the vehicle is determined to be in the downhill posture, acquiring the switching state of a hybrid power control switch and the running parameters of the vehicle; determining the predicted feedback electric energy of the vehicle according to the operation parameters; determining a predicted residual electric quantity value after the power battery absorbs the predicted feedback electric energy based on the current residual electric quantity value; and determining the operating power of the hydrogen fuel cell according to the switch state, the interval of the current residual electric quantity value and the interval of the predicted residual electric quantity value. Through the technical scheme, the residual electric quantity after the feedback energy is absorbed is partitioned, and the output power of the hydrogen fuel cell is determined according to the partitioned residual electric quantity value, so that the efficiency of the hydrogen fuel cell is maximized while the requirement of the whole vehicle is met, and the economy of the whole vehicle is improved.

Description

Control method, processor and device for hydrogen fuel cell vehicle
Technical Field
The present application relates to the field of hydrogen fuel cell vehicles, and in particular, to a control method, processor, apparatus, hydrogen fuel cell vehicle, and storage medium for a hydrogen fuel cell vehicle.
Background
The vehicle is one kind of electric vehicle, and is one electric vehicle driven with hydrogen as fuel and through electrochemical reaction to produce current. The reaction process of the fuel cell does not produce harmful products, so the fuel cell vehicle is a pollution-free vehicle, and the energy conversion efficiency of the fuel cell is 2 to 3 times higher than that of an internal combustion engine, so the fuel cell vehicle is an ideal vehicle in the aspects of energy utilization and environmental protection.
The hydrogen fuel cell is an energy conversion unit and cannot store energy, so that a power cell is arranged in the fuel cell automobile to provide kinetic energy for starting the hydrogen fuel cell automobile, and the power cell is mainly charged through the hydrogen fuel cell and can absorb the energy generated by the hydrogen fuel cell when the hydrogen fuel automobile decelerates or goes down a slope, thereby improving the economic performance of the whole automobile. In the prior art, the monitoring aiming at the energy feedback in the downhill process is lacked, so that the output power of the hydrogen fuel cell is unreasonable, and the energy is wasted.
Disclosure of Invention
An object of the present application is to provide a control method, processor, device, hydrogen fuel cell vehicle, and storage medium for a hydrogen fuel cell vehicle that allow for absorption of regenerative energy generated during a downhill slope to manage the output power of the hydrogen fuel cell system.
In order to achieve the above object, the present application provides a control method for a hydrogen fuel cell vehicle, the vehicle including a hybrid control switch, a hydrogen fuel cell, a power cell, the control method comprising:
under the condition that the vehicle is determined to be in the downhill posture, acquiring the switching state of a hybrid control switch and the running parameters of the vehicle;
determining the predicted feedback electric energy of the vehicle according to the operation parameters;
determining a predicted residual electric energy value after the power battery absorbs the predicted feedback electric energy based on the current residual electric energy value;
and determining the operating power of the hydrogen fuel cell according to the switch state, the interval of the current residual electric quantity value and the interval of the predicted residual electric quantity value.
In an embodiment of the application, the vehicle further comprises an electric machine, the operating parameters comprise a current vehicle speed of the vehicle, and the determining the predicted feedback electric energy of the vehicle based on the operating parameters comprises: determining the reverse power of the motor according to the current vehicle speed; and determining the predicted feedback electric energy of the vehicle according to the reverse power and the downhill time of the vehicle.
In an embodiment of the application, determining the predicted feedback electric energy of the vehicle according to the reverse power and the downhill time of the vehicle comprises: acquiring the running state of a vehicle; determining the target power of the hydrogen fuel cell according to the switch state and the running state; determining the predicted output electric energy of the vehicle according to the reverse power, the target power and the downhill time; acquiring required electric energy corresponding to the vehicle under the current operating parameters; and determining the difference value between the predicted output electric energy and the required electric energy as the predicted feedback electric energy of the vehicle.
In an embodiment of the present application, the operating state includes a first state and a second state, the vehicle further includes a motor, and the determining the target power of the hydrogen fuel cell based on the switch state and the operating state includes: under the condition that the switch state is on and the operation state is a first state, determining the target power as the maximum power of the hydrogen fuel cell in a preset optimal efficiency interval; and under the condition that the switch state is open and the operation state is the second state, determining the target power as the maximum output power of the hydrogen fuel cell under the current operation parameters.
In the embodiment of the application, the operation parameters comprise angle data, altitude data and downhill initial speed of the vehicle, and the downhill length of the downhill road section where the vehicle is located is determined according to the angle data and the altitude data; and determining the downhill time length according to the downhill length and the initial speed of the downhill.
In an embodiment of the present application, determining the operating power of the hydrogen fuel cell according to the switch state, the interval where the current remaining power value is located, and the interval where the predicted remaining power value is located includes: determining a running state of the vehicle, wherein the running state comprises a first state and a second state; determining the operation power as the maximum power of the hydrogen fuel cell in a preset optimal efficiency interval under the condition that any one of the following conditions is met: the switch state is open, the current residual electric quantity value is in a first range, the predicted residual electric quantity value is in a first interval, and the running state is a first state; the switch state is open, the current residual electric quantity value is in a first range, the predicted residual electric quantity value is in a second interval, and the running state is a second state; the switch state is open, the current residual electric quantity value is in a second range, the predicted residual electric quantity value is in a second interval, and the running state is a second state.
In an embodiment of the present application, determining the operating power of the hydrogen fuel cell according to the switch state, the interval where the current remaining power value is located, and the interval where the predicted remaining power value is located includes: determining an operating state of the vehicle, the operating state comprising a first state; determining the running power as the vehicle demanded power of the vehicle under the current running parameters under the condition that any one of the following conditions is met: the switch state is open, the current residual electric quantity value is in a first range, the predicted residual electric quantity value is in a second interval, and the running state is a first state; the switch state is open, the current residual electric quantity value is in a second range, the predicted residual electric quantity value is in a second interval, and the running state is the first state.
In an embodiment of the present application, determining the operating power of the hydrogen fuel cell according to the switch state, the interval in which the current remaining power value is located, and the interval in which the predicted remaining power value is located includes: determining the running state of the vehicle, wherein the running state comprises a second state; determining the operating power as the maximum output power of the hydrogen fuel cell at the current operating parameters if any one of the following is satisfied: the switch state is open, the current residual electric quantity value is in a first range, the predicted residual electric quantity value is in a first interval, and the running state is a second state; the switch state is closed, the current residual electric quantity value is in a first range, and the predicted residual electric quantity value is in a first interval.
In an embodiment of the present application, determining the operating power of the hydrogen fuel cell according to the switch state, the interval where the current remaining power value is located, and the interval where the predicted remaining power value is located includes: determining the operation power of the hydrogen fuel cell as the minimum power of the hydrogen fuel cell in a preset optimal efficiency interval under the condition that the following conditions are all met: the switch state is off; the current residual electric quantity value is in a first range; the predicted residual electric quantity value is in a second interval.
In the embodiment of the present application, the hydrogen fuel cell is controlled to stop operating in the case where any one of the following is satisfied: the switch state is open, the current residual electric quantity value is in a first range, and the predicted residual electric quantity value is in a third interval; the switch state is open, the current residual electric quantity value is in a second range, and the predicted residual electric quantity value is in a third interval; the switch state is open, and the current residual electric quantity value is in a third range; the switch state is closed, the current residual electric quantity value is in a first range, and the predicted residual electric quantity value is in a third interval; the switch state is off and the current remaining power value is in the fourth range.
In the embodiment of the application, a first range refers to the condition that a first ratio between a current remaining capacity value and a full capacity of a power battery is smaller than a first value, a second range refers to the condition that the first ratio is larger than or equal to the first value and smaller than a second value, a third range refers to the condition that the first ratio is larger than or equal to the second value, and a fourth range refers to the condition that the first ratio is larger than or equal to the first value; the first interval is a period in which a second ratio between the predicted remaining capacity value and the full capacity value is greater than a first ratio and less than or equal to a second ratio, the second interval is a period in which the second ratio is greater than the second ratio and less than or equal to a third ratio, and the third interval is a period in which the second ratio is greater than the third ratio.
A second aspect of the present application provides a processor configured to execute the control method for a hydrogen fuel cell vehicle of any one of the above.
A third aspect of the present application provides a control apparatus for a hydrogen fuel cell vehicle, including the processor described above.
A fourth aspect of the present application provides a hydrogen fuel cell vehicle including:
a hybrid control switch;
a hydrogen fuel cell for providing a primary power source for a hydrogen fuel cell vehicle;
a power cell for providing an auxiliary power source for the hydrogen fuel cell vehicle; and
the control device for a hydrogen fuel cell vehicle according to the above.
In an embodiment of the present application, the hydrogen fuel cell vehicle further includes: an attitude detection system configured to acquire a vehicle attitude of the hydrogen fuel cell vehicle; a GPS system configured to acquire GPS signals; an altitude detection system configured to acquire altitude data of the hydrogen fuel cell vehicle; an electric motor.
A fifth aspect of the present application provides a machine-readable storage medium having stored thereon instructions that, when executed by a processor, cause the processor to be configured to execute the control method for a hydrogen fuel cell vehicle of any one of the above.
According to the technical scheme, under the condition that the hydrogen fuel cell vehicle is in the downhill posture, the feedback energy of the vehicle in the downhill process is predicted by detecting the starting state of the hybrid power switch and the running parameters of the vehicle, the residual electric quantity after the feedback energy is absorbed is partitioned, and the output power of the hydrogen fuel cell is determined according to the partitioned residual electric quantity value, so that the requirement of the whole vehicle is met, meanwhile, the efficiency of the hydrogen fuel cell is maximized, and the economy of the whole vehicle is improved. And the control precision of the running power of the vehicle hydrogen fuel cell is increased by monitoring the residual electric quantity value in a subarea mode.
Additional features and advantages of the present application will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application and not to limit the application. In the drawings:
fig. 1 schematically shows a flowchart of a control method for a hydrogen fuel cell vehicle according to an embodiment of the present application;
fig. 2 schematically shows a block diagram of the structure of a hydrogen fuel cell vehicle according to an embodiment of the present application;
fig. 3 is a block diagram schematically showing the structure of a control apparatus for a hydrogen fuel cell vehicle according to an embodiment of the present application;
fig. 4 schematically shows an internal structural diagram of a computer device according to an embodiment of the present application.
Detailed Description
The following detailed description of embodiments of the present application will be made with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present application, are given by way of illustration and explanation only, and are not intended to limit the present application.
It should be noted that if directional indications (such as upper, lower, left, right, front, rear, 8230; \8230;) are referred to in the embodiments of the present application, the directional indications are only used for explaining the relative positional relationship between the components in a specific posture (as shown in the attached drawings), the motion situation, etc., and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
In one embodiment, as shown in fig. 1, a flow chart schematically showing a control method for a hydrogen fuel cell vehicle according to an embodiment of the present application is shown. As shown in fig. 1, in an embodiment of the present application, there is provided a control method for a hydrogen fuel cell vehicle, including the steps of:
step 101, acquiring the switch state of a hybrid power control switch and the running parameters of a vehicle under the condition of determining that the vehicle is in a downhill posture;
step 102, determining the predicted feedback electric energy of the vehicle according to the operation parameters;
103, determining a predicted residual electric quantity value after the power battery absorbs predicted feedback electric energy based on the current residual electric quantity value;
and 104, determining the operation power of the hydrogen fuel cell according to the switch state, the interval of the current residual electric quantity value and the interval of the predicted residual electric quantity value.
According to the embodiment of the application, under the condition that the hydrogen fuel cell vehicle is in the downhill posture, the feedback energy of the vehicle in the downhill process is predicted by detecting the opening state of the hybrid power switch and the operating parameters of the vehicle, the residual electric quantity after the feedback energy is absorbed is partitioned, and the output power of the hydrogen fuel cell is determined according to the partitioned residual electric quantity value, so that the efficiency of the hydrogen fuel cell is maximized while the requirements of the whole vehicle are met, and the economy of the whole vehicle is improved. And the control precision of the running power of the vehicle hydrogen fuel cell is increased by monitoring the residual electric quantity value in a subarea mode.
The control method for a hydrogen fuel cell vehicle is applied to a hydrogen fuel cell vehicle including a hybrid control switch, a hydrogen fuel cell, a power cell, and an attitude detection system. The processor can acquire the vehicle posture of the vehicle through the posture detection system, and can acquire the on-off state of the hybrid control switch of the vehicle and the running parameters of the vehicle when the posture detection system detects that the vehicle is in the downhill posture, namely the vehicle is in the downhill section. After obtaining the operating parameters of the vehicle, the processor may determine the predicted feedback electric energy of the vehicle according to the operating parameters of the vehicle. After the predicted feedback electric energy of the vehicle is determined, the processor can determine the predicted residual electric energy value of the power battery after the predicted feedback electric energy is absorbed by the power battery based on the current residual electric energy value according to the current residual electric energy value and the predicted feedback electric energy of the power battery, wherein the predicted residual electric energy value can be the sum of the current residual electric energy value of the power battery and the predicted feedback electric energy.
The processor can determine the running power of the hydrogen fuel cell according to the switch state of the hybrid control switch, the full electric quantity interval of the current residual electric quantity value of the power cell and the full electric quantity interval of the predicted residual electric quantity value.
In one embodiment, in the case that the vehicle is determined to be in a downhill posture, acquiring operating parameters of the vehicle, wherein the operating parameters comprise angle data, altitude data and initial speed of the vehicle; determining the downhill length of a downhill road section where the vehicle is located according to the angle data and the altitude data; and determining the downhill time length according to the downhill length and the initial speed of the downhill.
When the processor determines that the vehicle is in the downhill attitude via the attitude detection system, the processor may obtain operating parameters of the vehicle, where the operating parameters may include angle data, altitude data, and an initial speed of the vehicle downhill. The processor can determine the downhill length of the downhill road section where the vehicle is located through the acquired angle data of the vehicle and the altitude data of the vehicle, and predict the downhill duration according to the determined downhill length and the initial speed of the downhill, so as to obtain the downhill duration of the vehicle. The method has the advantages that the current operation parameters of the vehicle are obtained, so that the downhill time length of the vehicle is predicted, and preparation is made for predicting the feedback energy in the follow-up process.
In one embodiment, determining the predicted regenerative electrical energy of the vehicle based on the operating parameters comprises: determining the reverse power of the motor according to the current vehicle speed; and determining the predicted feedback electric energy of the vehicle according to the reverse power and the downhill time of the vehicle.
The hydrogen fuel cell vehicle further includes an electric motor. The operating parameters of the vehicle may include a current speed of the vehicle, and the processor may determine the reverse power of the motor of the vehicle according to the current speed of the vehicle after obtaining the current speed of the vehicle, and determine the predicted feedback electric energy of the vehicle according to the reverse power of the motor and the predicted downhill time of the vehicle. The processor can determine the predicted residual electric quantity value after the power battery absorbs the predicted feedback electric energy based on the current residual electric quantity value according to the predicted feedback electric energy of the vehicle.
In one embodiment, the step of determining the predicted regenerative electric energy of the vehicle according to the reverse power and the downhill slope duration of the vehicle comprises the following steps: acquiring the running state of a vehicle; determining the target power of the hydrogen fuel cell according to the switch state and the running state; determining the predicted output electric energy of the vehicle according to the reverse power, the target power and the downhill time; acquiring required electric energy corresponding to the vehicle under the current operating parameters; and determining the difference value between the predicted output electric energy and the required electric energy as the predicted feedback electric energy of the vehicle.
The processor may further acquire an operating state of the vehicle and an on-off state of a hybrid control switch of the vehicle when determining the predicted feedback energy of the vehicle based on the reverse power of the vehicle and the downhill time period of the vehicle, and the processor may determine the target power of the hydrogen fuel cell based on the on-off state of the hybrid control switch and the operating state of the vehicle. And determining the predicted output electric energy of the hydrogen fuel cell of the vehicle according to the reverse power of the vehicle, the target power and the downhill time of the vehicle. The processor determines the target power of the hydrogen fuel cell according to the switch state of the hybrid control switch and the running state of the vehicle, then obtains the sum of the reverse power and the target power based on the reverse power obtained by the vehicle, and then determines the predicted output electric energy of the vehicle according to the sum of the reverse power and the target power and the predicted downhill time of the vehicle. The processor can obtain the required electric energy corresponding to the vehicle under the current operating parameters, and determines the difference value between the predicted output electric energy and the required electric energy of the vehicle as the predicted feedback electric energy of the vehicle, namely the predicted feedback electric energy of the vehicle is determined by subtracting the required electric energy of the vehicle from the output electric energy of the vehicle. Under the condition that a hybrid power control switch of the vehicle is in different switch states and the running state of the vehicle is in different running states, the predicted feedback electric energy of the vehicle can be changed according to the switch states and the running state, and the predicted feedback electric energy is not determined according to the reverse power of a motor of the vehicle. Therefore, the processor can determine the target power of the hydrogen fuel cell according to the switch state of the hybrid control switch and the running state of the vehicle, and obtain new predicted feedback electric energy based on the reverse rotation power of the motor in combination with the target power, so that more accurate predicted feedback electric energy of the vehicle can be obtained compared with the vehicle which only uses the reverse rotation power of the motor.
The processor may also establish a correspondence relationship with the target power of the hydrogen fuel cell in advance according to the on-off state and the operating state of the vehicle. The processor may determine the target power of the hydrogen fuel cell based on the on-off state, the operating state, and the correspondence of the vehicle.
In one embodiment, the operating state includes a first state and a second state, the vehicle further includes an electric motor, and determining the target power of the hydrogen fuel cell based on the switch state and the operating state includes: under the condition that the switch state is on and the operation state is a first state, the target power is the maximum power of the hydrogen fuel cell in a preset optimal efficiency interval; and under the condition that the switch state is open and the operation state is the second state, the target power is the maximum output power of the hydrogen fuel cell under the current operation parameters.
The operating state of the vehicle includes a first state and a second state, and the processor may set a steady cruise state of the vehicle to the first state and a non-steady cruise state of the vehicle to the second state. The steady-state cruising state of the vehicle may refer to a vehicle running state in which the speed of the vehicle is stabilized at or near a speed value for a preset period of time.
The processor may obtain a switching state of the hybrid control switch and an operating state of the vehicle, and when the processor determines that the hybrid control switch is turned on and the operating state is a first state, that is, the vehicle is in an operating state of steady cruise, the processor may determine the target power of the hydrogen fuel cell as the maximum power of the hydrogen fuel cell within a preset optimal efficiency interval. When the processor determines that the hybrid control switch is on and the operation state is the second state, that is, the operation state in which the vehicle is in the non-steady cruise, the processor may determine the target power of the hydrogen fuel cell as the maximum output power of the hydrogen fuel cell under the current operation parameters. After the processor determines the target power through the switching state of the hybrid power switch of the vehicle and the running state of the vehicle, more accurate prediction feedback electric energy can be obtained according to the determined target power and the reverse power of the motor of the vehicle by combining the predicted downhill time length of the vehicle.
When the processor determines that the hybrid control switch is turned off, the processor can acquire the operating parameters of the vehicle, wherein the operating parameters comprise the current speed of the vehicle, the processor can determine the reverse power of a motor of the vehicle according to the current speed, and the predicted feedback electric energy of the vehicle is determined according to the reverse power and the downhill time of the vehicle. After the processor determines the target power of the hydrogen fuel cell under different conditions according to the switch state of the hybrid control switch and the running state of the vehicle, the processor can determine the predicted output electric energy of the hydrogen fuel cell according to the target power obtained under different conditions, thereby determining the predicted feedback electric energy of the vehicle. The processor respectively determines the predicted feedback electric energy under different conditions of the vehicle, so that the predicted feedback electric energy which is most suitable for the vehicle can be obtained according to different states of the vehicle, and the follow-up control of the operating power of the hydrogen fuel cell of the vehicle is more reasonable.
In one embodiment, the determining the operating power of the hydrogen fuel cell based on the switch state, the interval in which the current remaining power value is present, and the interval in which the predicted remaining power value is present includes: determining a running state of the vehicle, wherein the running state comprises a first state and a second state; determining the operation power as the maximum power of the hydrogen fuel cell in a preset optimal efficiency interval under the condition that any one of the following conditions is met: the switch state is open, the current residual electric quantity value is in a first range, the predicted residual electric quantity value is in a first interval, and the running state is a first state; the switch state is open, the current residual electric quantity value is in a first range, the predicted residual electric quantity value is in a second interval, and the operation state is a second state; the switch state is open, the current residual electric quantity value is in a second range, the predicted residual electric quantity value is in a second interval, and the running state is a second state.
The processor can acquire the on-off state of a hybrid power control switch of the vehicle, the interval of the current residual electric quantity value of the power battery in the full-rated electric quantity value and the interval of the predicted residual electric quantity value of the power battery in the full-rated electric quantity value, and determine the running power of the hydrogen fuel cell of the vehicle according to the parameters.
The processor may determine an operating state of the vehicle, wherein the operating state of the vehicle includes a first state and a second state, and the processor may set a steady cruise state of the vehicle to the first state and a non-steady cruise state of the vehicle to the second state. In the case where the processor determines that the vehicle satisfies any one of the following, the processor may determine that the operating power of the hydrogen fuel cell of the vehicle is the maximum power of the hydrogen fuel cell within a preset optimum efficiency interval.
The processor may set the first range to be less than 20% of the full-charge value, the second range to be greater than 20% of the full-charge value and less than 60% of the full-charge value, the first interval to be 40% -60% of the full-charge value, and the second interval to be 60% -80% of the full-charge value.
When the processor determines that the hybrid power control switch of the vehicle is turned on, the current residual electric quantity value of the power battery is in the first range of the full-rated electric quantity value, the predicted residual electric quantity value is in the first interval of the full-rated electric quantity value, and the operation state is the first state, namely the steady-state cruise state, the processor can control the hydrogen fuel battery to operate at the maximum power within the preset optimal efficiency interval.
When the processor determines that a hybrid power control switch of the vehicle is turned on, the current residual electric quantity value of the power battery is in a first range of a full-rated electric quantity value, the predicted residual electric quantity value is in a second interval of the full-rated electric quantity value, and the running state is in a second state, namely an unsteady cruise state, the processor can control the hydrogen fuel battery to run at the maximum power within a preset optimal efficiency interval.
When the processor determines that the hybrid power control switch of the vehicle is on, the current residual electric quantity value of the power battery is in a second range of the full-rated electric quantity value, the predicted residual electric quantity value is in a second interval of the full-rated electric quantity value, and the running state is in a second state, namely an unsteady cruise state, the processor can control the hydrogen fuel battery to run at the maximum power within the preset optimal efficiency interval.
The processor can segment the residual electric quantity value and the predicted residual electric quantity value of the power battery, and respectively confirm the operation power of the hydrogen fuel battery desired by the vehicle in the section where the obtained residual electric quantity value and the predicted residual electric quantity value are located. Therefore, the operating power is managed in a segmented mode, the vehicle can operate at the most reasonable operating power under different conditions, the energy waste is reduced, and the economical efficiency of the vehicle is improved.
In one embodiment, the determining the operating power of the hydrogen fuel cell based on the switch state, the interval in which the current remaining power value is present, and the interval in which the predicted remaining power value is present includes: determining an operating state of the vehicle, the operating state comprising a first state; determining the running power as the vehicle demanded power of the vehicle under the current running parameters under the condition that any one of the following conditions is met: the switch state is open, the current residual electric quantity value is in a first range, the predicted residual electric quantity value is in a second interval, and the running state is a first state; the switch state is open, the current residual electric quantity value is in a second range, the predicted residual electric quantity value is in a second interval, and the running state is the first state.
The processor can acquire the switch state of a hybrid power control switch of the vehicle, the interval of the current residual electric quantity value of the power battery in the full electric quantity value and the interval of the predicted residual electric quantity value of the power battery in the full electric quantity value, and determine the running power of the hydrogen fuel cell of the vehicle according to the parameters. In the event that the processor determines that the vehicle meets any of the following, the processor may determine the operating power of the hydrogen fuel cell of the vehicle to be the vehicle demanded power of the vehicle at the current operating parameters.
The processor may determine an operating state of the vehicle, and the processor may set the first state to a steady-state cruise operating state of the vehicle. The processor may also set the first range to 20% below the full charge value, the second range to 20% above the full charge value and 60% below the full charge value, the first interval to 40% -60% of the full charge value, and the second interval to 60% -80% of the full charge value.
When the processor determines that the hybrid power control switch of the vehicle is on, the current residual electric quantity value of the power battery is in a first range of the full-rated electric quantity value, the predicted residual electric quantity value is in a second interval of the full-rated electric quantity value, and the running state is a first state, namely a steady-state cruise state, the processor can control the hydrogen fuel battery to run at the vehicle required power of the vehicle under the current running parameters.
When the processor determines that the hybrid power control switch of the vehicle is on, the current residual electric quantity value of the power battery is in the second range of the full-rated electric quantity value, the predicted residual electric quantity value is in the second interval of the full-rated electric quantity value, and the running state is the first state, namely the steady-state cruise state, the processor can control the hydrogen fuel battery to run at the vehicle required power under the current running parameters of the vehicle.
In one embodiment, determining the operating power of the hydrogen fuel cell according to the switch state, the interval in which the current residual electric quantity value is located, and the interval in which the predicted residual electric quantity value is located includes: determining the running state of the vehicle, wherein the running state comprises a second state; determining the operating power as the maximum output power of the hydrogen fuel cell at the current operating parameters if any one of the following is satisfied: the switch state is open, the current residual electric quantity value is in a first range, the predicted residual electric quantity value is in a first interval, and the running state is a second state; the switch state is closed, the current residual electric quantity value is in a first range, and the predicted residual electric quantity value is in a first interval.
The processor can acquire the switch state of a hybrid power control switch of the vehicle, the interval of the current residual electric quantity value of the power battery in the full electric quantity value and the interval of the predicted residual electric quantity value of the power battery in the full electric quantity value, and determine the running power of the hydrogen fuel cell of the vehicle according to the parameters. In the event that the processor determines that the vehicle satisfies any one of the following, the processor may determine that the operating power of the hydrogen fuel cell of the vehicle is the maximum output power of the hydrogen fuel cell at the current operating parameters.
The processor may determine an operating state of the vehicle, and the processor may set the second state to an unsteady cruise operating state of the vehicle. The processor may set the first range to be lower than 20% of the full-amount value, set the second range to be higher than 20% of the full-amount value and lower than 60% of the full-amount value, set the first interval to be 40% -60% of the full-amount value, and set the second interval to be 60% -80% of the full-amount value.
When the processor determines that the hybrid power control switch of the vehicle is turned on, the current residual electric quantity value of the power battery is in the first range of the full-rated electric quantity value, the predicted residual electric quantity value is in the first interval of the full-rated electric quantity value, and the operation state is the second state, namely the unsteady cruise state, the processor can control the hydrogen fuel battery to operate at the maximum output power under the current operation parameters.
When the processor determines that the hybrid control switch of the vehicle is closed, the current residual electric quantity value of the power battery is in the first range of the full-rated electric quantity value, and the predicted residual electric quantity value is in the first interval of the full-rated electric quantity value, the processor can control the hydrogen fuel cell to operate at the maximum output power under the current operation parameters.
In one embodiment, determining the operating power of the hydrogen fuel cell according to the switch state, the interval in which the current residual electric quantity value is located, and the interval in which the predicted residual electric quantity value is located includes: determining the operation power of the hydrogen fuel cell as the minimum power of the hydrogen fuel cell in a preset optimal efficiency interval under the condition that the following conditions are all met: the switch state is off; the current residual electric quantity value is in a first range; the predicted residual electric quantity value is in the second interval.
The processor can acquire the switch state of a hybrid power control switch of the vehicle, the interval of the current residual electric quantity value of the power battery in the full electric quantity value and the interval of the predicted residual electric quantity value of the power battery in the full electric quantity value, and determine the running power of the hydrogen fuel cell of the vehicle according to the parameters.
When the processor determines that the hybrid power control switch of the vehicle is in the off state, the current residual electric quantity value of the power battery is in the first range of the full-rated electric quantity value, and the predicted residual electric quantity value of the power battery is in the second range of the full-rated electric quantity value, the processor can control the hydrogen fuel cell of the vehicle to operate at the minimum power within the preset optimal efficiency range. Wherein the processor may set the first range to be lower than 20% of the full capacity value, and set the second interval to be 60% to 80% of the full capacity value.
In one embodiment, the hydrogen fuel cell is controlled to stop operating if any one of the following is satisfied: the switch state is open, the current residual electric quantity value is in a first range, and the predicted residual electric quantity value is in a third interval; the switch state is open, the current residual electric quantity value is in a second range, and the predicted residual electric quantity value is in a third interval; the switch state is open, and the current residual electric quantity value is in a third range; the switch state is closed, the current residual electric quantity value is in a first range, and the predicted residual electric quantity value is in a third interval; the switch state is off and the current remaining power value is in the fourth range.
The processor can acquire the switch state of a hybrid control switch of the vehicle, the interval of the current residual electric quantity value of the power battery in the full electric quantity value and the interval of the predicted residual electric quantity value of the power battery in the full electric quantity value, and control the hydrogen fuel cell to stop running under the condition that the parameters meet any one of the following requirements.
The processor may set the first range to be less than 20% of the full amount of electricity, the second range to be greater than 20% of the full amount of electricity and less than 60% of the full amount of electricity, the third range to be greater than 60% of the full amount of electricity, the fourth range to be greater than 20% of the full amount of electricity, the first interval to be 40% -60% of the full amount of electricity, the second interval to be 60% -80% of the full amount of electricity, and the third interval to be greater than 80% of the full amount of electricity.
And when the processor determines that the switch state of the hybrid power control switch of the vehicle is on, the current residual electric quantity value of the power battery is in the first range of the full-rated electric quantity value, and the predicted residual electric quantity value of the power battery is in the third interval of the full-rated electric quantity value, the processor can control the hydrogen fuel battery to stop running.
And when the processor determines that the switch state of the hybrid power control switch of the vehicle is on, the current residual electric quantity value of the power battery is in the second range of the full-rated electric quantity value, and the predicted residual electric quantity value of the power battery is in the third interval of the full-rated electric quantity value, the processor can control the hydrogen fuel battery to stop running.
And when the processor determines that the switch state of the hybrid power control switch of the vehicle is on and the current residual electric quantity value of the power battery is in a third range of the full-rated electric quantity value, the processor can control the hydrogen fuel battery to stop running.
And when the processor determines that the switch state of the hybrid power control switch of the vehicle is off, the current residual electric quantity value of the power battery is in the first range of the full-rated electric quantity value, and the predicted residual electric quantity value of the power battery is in the third interval of the full-rated electric quantity value, the processor can control the hydrogen fuel battery to stop running.
And when the processor determines that the hybrid power control switch of the vehicle is in the off state and the current residual electric quantity value of the power battery is in the fourth range of the full-rated electric quantity value, the processor can control the hydrogen fuel battery to stop running.
In one embodiment, the first range refers to a first ratio between the current remaining capacity value and the full capacity of the power battery being smaller than a first value, the second range refers to the first ratio being greater than or equal to the first value and smaller than a second value, the third range refers to the first ratio being greater than or equal to the second value, and the fourth range refers to the first ratio being greater than or equal to the first value; the first interval is a period in which a second ratio between the predicted remaining capacity value and the full capacity value is greater than a first ratio and less than or equal to a second ratio, the second interval is a period in which the second ratio is greater than the second ratio and less than or equal to a third ratio, and the third interval is a period in which the second ratio is greater than the third ratio.
The processor may set the first value to 20% and the second value to 60%. The processor may determine a first ratio between the current remaining amount value and the full charge value of the power battery, the processor setting a first range in which the first ratio is less than a first value, i.e., less than 20%, a second range in which the first ratio is greater than or equal to the first value and less than a second value, i.e., greater than or equal to 20% and less than 60%, and a third range in which the first ratio is greater than or equal to the second value, i.e., greater than or equal to 60%. A fourth range means that the first ratio is greater than or equal to the first value, i.e., greater than or equal to 20%.
The processor may also set the first proportional value to 40%, the second proportional value to 60%, and the third proportional value to 80%. The processor may determine a second ratio between the predicted remaining capacity value of the power battery and the full capacity value of the power battery, the processor setting a first interval to the second ratio being greater than the first ratio and less than or equal to the second ratio, i.e., greater than 40% and less than or equal to 60%, a second interval to the second ratio being greater than the second ratio and less than or equal to a third ratio, i.e., greater than 60% and less than or equal to 80%, and a third interval to the second ratio being greater than the third ratio, i.e., greater than 80%.
In one embodiment, the actual output electric energy of the hydrogen fuel cell and the corresponding required electric energy of the vehicle under the current operating parameters are obtained; determining the difference between the actual output electric energy and the required electric energy as the actual feedback electric energy of the hydrogen fuel cell; and controlling the power battery to absorb actual feedback electric energy.
The processor can obtain the actual output electric energy of the hydrogen fuel cell vehicle and the required electric energy of the vehicle under the current operating parameters, the processor can determine the difference value of the actual output electric energy of the hydrogen fuel cell and the required electric energy of the vehicle as the actual feedback electric energy of the hydrogen fuel cell, and the processor can control the hydrogen fuel cell to absorb the actual feedback electric energy.
In one embodiment, as shown in fig. 2, a block diagram schematically illustrating the structure of a hydrogen fuel cell vehicle 200 includes: a hybrid control switch 201; a hydrogen fuel cell 202 for providing a primary power source for the hydrogen fuel cell vehicle 200; a power battery 203 for providing an auxiliary power source for the hydrogen fuel cell vehicle 200; and a control device 204 for a hydrogen fuel cell vehicle.
Among them, the hybrid control switch 201 may be used to switch the power supply mode of the hydrogen fuel cell vehicle 200.
In one embodiment, as shown in fig. 2, the hydrogen fuel cell vehicle 200 further includes: a posture detection system 205 configured to acquire a vehicle posture of the hydrogen fuel cell vehicle 200; a GPS system 206 configured to acquire GPS signals; an altitude detection system 207 configured to acquire altitude data of the hydrogen fuel cell vehicle 200; a motor 208.
In one embodiment, a processor configured to execute the control method for a hydrogen fuel cell vehicle described above is provided.
The processor may detect the attitude of the vehicle through the attitude detection system, and may obtain the operating parameters of the vehicle when the attitude detection system determines that the vehicle is in the downhill attitude, where the operating parameters may include angle data, altitude data, and a downhill initial speed of the vehicle. The processor can determine the downhill length of the downhill road section where the vehicle is located through the acquired angle data of the vehicle and the altitude data of the vehicle, and predict the downhill duration according to the determined downhill length and the initial speed of the downhill, so as to obtain the downhill duration of the vehicle.
In the case where the processor determines that the hydrogen fuel cell vehicle is in the downhill attitude, the processor may acquire the switch states of the hybrid control switches of the vehicle and the operating parameters of the vehicle. The processor may determine a predicted regeneration energy for the vehicle based on the operating parameter. The operating parameters of the vehicle may include a current speed of the vehicle, and the processor may determine the reverse power of the motor of the vehicle according to the current speed of the vehicle after obtaining the current speed of the vehicle, and determine the predicted feedback electric energy of the vehicle according to the reverse power of the motor and the predicted downhill time of the vehicle.
In the case where the hydrogen fuel cell vehicle can switch the power supply mode of the vehicle through the hybrid control switch, the predicted regenerative electric energy of the vehicle may be determined based on the switching state of the hybrid control switch and the operating parameters of the vehicle.
The processor may acquire a switching state of the hybrid control switch of the vehicle and an operating state of the vehicle, and the processor may determine the target power of the hydrogen fuel cell based on the switching state of the hybrid control switch and the operating state of the vehicle. The operating state of the vehicle includes a first state and a second state, and the processor may set a steady cruise state of the vehicle to the first state and a non-steady cruise state of the vehicle to the second state. The steady-state cruising state of the vehicle may refer to a vehicle running state in which the speed of the vehicle is stabilized at or near a speed value for a preset period of time.
When the processor determines that the hybrid control switch is turned on and the vehicle is in the steady-state cruising operation state, the processor may determine the target power of the hydrogen fuel cell as the maximum power of the hydrogen fuel cell within a preset optimum efficiency interval. When the processor determines that the hybrid control switch is on and the vehicle is in an operating state of non-steady-state cruising, the processor may determine the target power of the hydrogen fuel cell as the maximum output power of the hydrogen fuel cell under the current operating parameters.
When the processor determines that the hybrid control switch is turned off, the processor can acquire the operating parameters of the vehicle, wherein the operating parameters comprise the current speed of the vehicle, the processor can determine the reverse power of a motor of the vehicle according to the current speed, and the predicted feedback electric energy of the vehicle is determined according to the reverse power and the downhill time of the vehicle.
The processor may determine the target power of the hydrogen fuel cell under different conditions according to the switching state of the hybrid control switch and the running state of the vehicle, and determine the predicted output electric energy of the vehicle under different conditions according to the target power and the downhill time length under different conditions, based on the reverse rotation power of the motor of the vehicle itself. The processor can combine the target power obtained under different conditions of the vehicle on the basis of the reverse power of the motor of the vehicle, and then determine the predicted output electric energy of the vehicle under different conditions according to the predicted downhill time length. Due to the fact that different states of the vehicle are considered, the obtained predicted output electric energy is more accurate.
After the predicted output electric energy of the hydrogen fuel cell under different conditions is determined, the processor can acquire the corresponding required electric energy of the vehicle under the current operating parameters, and the difference value between the predicted output electric energy and the required electric energy of the vehicle is determined as the predicted feedback electric energy of the vehicle. The processor may obtain a current remaining power value of the power battery, and use a sum of the current remaining power value and the predicted feedback power as a predicted remaining power value of the power battery. The processor can determine the operation power of the hydrogen fuel cell according to the switch state of the hybrid control switch, the interval of the current residual electric quantity value of the power cell and the interval of the predicted residual electric quantity value of the power cell.
The processor can acquire the switch state of the hybrid control switch, and acquire the current residual electric quantity value of the power battery and the predicted residual electric quantity value of the power battery under the condition that the switch state of the hybrid control switch is determined to be on. The processor may set the first range to be less than 20% of the full amount of electricity, the second range to be greater than 20% of the full amount of electricity and less than 60% of the full amount of electricity, the third range to be greater than 60% of the full amount of electricity, the fourth range to be greater than 20% of the full amount of electricity, the first interval to be 40% -60% of the full amount of electricity, the second interval to be 60% -80% of the full amount of electricity, and the third interval to be greater than 80% of the full amount of electricity.
The processor may acquire a current remaining electric energy value of the power battery in a case where it is determined that the hybrid control switch of the vehicle is turned on, acquire a predicted remaining electric energy value of the power battery and an operating state of the vehicle in a case where it is determined that the current remaining electric energy value of the power battery is in a first range of a full-rated electric energy value, and determine the operating power of the hydrogen fuel cell according to a section in which the predicted remaining electric energy value of the power battery is located and the operating state of the vehicle.
When the processor determines that the predicted residual electric quantity value of the power battery is in the first interval of the full electric quantity value and the vehicle is in the operating state of steady cruising, the processor can control the hydrogen fuel cell to operate at the maximum power within the preset optimal efficiency interval. When the predicted residual electric quantity value of the power battery is in the first interval of the full-rated electric quantity value and the vehicle is in the non-steady-state cruising operation state, the processor can control the hydrogen fuel battery to operate at the maximum output power under the current operation parameters. In the case where the processor determines that the predicted remaining electric power value of the power cell is in the second interval of the full electric power value and the vehicle is in the steady-state cruising operating state at that time, the processor may control the hydrogen fuel cell to operate at the vehicle required power at the current operating parameter of the vehicle. When the processor determines that the predicted residual electric quantity value of the power battery is in the second interval of the full electric quantity value and the vehicle is in the non-steady cruising operation state, the processor can control the hydrogen fuel cell to operate at the maximum power within the preset optimal efficiency interval. And under the condition that the processor determines that the predicted residual electric quantity value of the power battery is in the third interval of the full electric quantity value, the processor can control the hydrogen fuel battery to stop running.
In the case where it is determined that the hybrid control switch of the vehicle is on and the current remaining amount value of the power battery is within the second range of the full-rated amount value, the processor may acquire the predicted remaining amount value of the power battery and the operating state of the vehicle, and determine the operating power of the hydrogen fuel cell according to the section in which the predicted remaining amount value of the power battery is located and the operating state of the vehicle.
When the processor determines that the predicted remaining electric power value of the power cell is in the second interval of the full electric power value and the vehicle is in the operating state of steady cruise, the processor may control the hydrogen fuel cell to operate at the vehicle required power of the vehicle under the current operating parameters. When the processor determines that the predicted residual electric quantity value of the power battery is in the second interval of the full electric quantity value and the vehicle is in the non-steady cruising operation state, the processor can control the hydrogen fuel cell to operate at the maximum power within the preset optimal efficiency interval. And under the condition that the processor determines that the predicted residual electric quantity value of the power battery is in the third interval of the full electric quantity value, the processor can control the hydrogen fuel battery to stop running.
The processor may control the hydrogen fuel cell to stop operating when it is determined that the hybrid control switch of the vehicle is on and the current remaining power value of the power cell is in a third range of the full-rated power value.
The processor may acquire a current remaining electric energy value of the power battery in a case where it is determined that the hybrid control switch of the vehicle is off, and the processor may acquire a predicted remaining electric energy value of the power battery and determine the operating power of the hydrogen fuel cell according to a section in which the predicted remaining electric energy value of the power battery is located in a case where it is determined that the current remaining electric energy value of the power battery is in a first range of a full-rated electric energy value.
In the event that it is determined that the predicted remaining power value of the power cell is within the first interval of the full power value, the processor may control the hydrogen fuel cell to operate at the maximum output power at the current operating parameter.
In the case where it is determined that the predicted remaining electric power value of the power cell is in the second interval of the full-rated electric power value, the processor may control the hydrogen fuel cell of the vehicle to operate at a minimum power within a preset optimum efficiency interval.
The processor may control the hydrogen fuel cell to stop operation in a case where it is determined that the predicted remaining electric power value of the power cell is in a third interval of the full electric power value.
The processor may control the hydrogen fuel cell to stop operating in a case where it is determined that the hybrid control switch of the vehicle is off and the current remaining power value of the power cell is in the fourth range of the full-rated power value.
The processor controls the hydrogen fuel cell to operate according to different output powers according to different conditions, in the process of descending the vehicle, the processor can obtain actual output electric energy obtained after the hydrogen fuel cell of the hydrogen fuel cell vehicle operates according to the output power, and according to the required electric energy of the vehicle under the current operating parameters, the processor can determine the difference value of the actual output electric energy of the hydrogen fuel cell and the required electric energy of the vehicle as the actual feedback electric energy of the hydrogen fuel cell, and the processor can control the hydrogen fuel cell to absorb the actual feedback electric energy.
According to the technical scheme, the residual electric quantity of the power battery after the feedback energy is absorbed is predicted by predicting the feedback energy of the hydrogen fuel cell automobile in the downhill section. And the current residual electric quantity value of the power battery is monitored and partitioned, and the running power of the hydrogen fuel battery is controlled according to the partitioned current residual electric quantity value and the predicted residual electric quantity value, so that the hydrogen fuel battery vehicle meets the vehicle requirements, simultaneously maximizes the efficiency of the hydrogen fuel battery, achieves the aim of saving the hydrogen consumption, and improves the economy of the whole vehicle.
In one embodiment, as shown in fig. 3, a block diagram schematically showing a structure of a control apparatus 300 for a hydrogen fuel cell vehicle, the control apparatus 300 for a hydrogen fuel cell vehicle includes:
the parameter acquisition module 301 is used for acquiring the on-off state of the hybrid control switch and the running parameters of the vehicle under the condition that the vehicle is determined to be in the downhill posture;
a feedback electric energy prediction module 302 for determining a predicted feedback electric energy of the vehicle based on the operating parameters;
the residual electric quantity prediction module 303 is used for determining a predicted residual electric quantity value after the power battery absorbs the predicted feedback electric energy based on the current residual electric quantity value;
and the operating power determining module 304 is configured to determine the operating power of the hydrogen fuel cell according to the switch state, the interval where the current residual electric quantity value is located, and the interval where the predicted residual electric quantity value is located.
In one embodiment, a machine-readable storage medium having stored thereon instructions that, when executed by a processor, cause the processor to be configured to execute the control method for a hydrogen fuel cell vehicle described above is provided.
The memory may include volatile memory in a computer readable medium, random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
In one embodiment, a computer device is provided, which may be a server, the internal structure of which may be as shown in fig. 4. The computer apparatus includes a processor a01, a network interface a02, a memory (not shown in the figure), and a database (not shown in the figure) connected through a system bus. Wherein the processor a01 of the computer device is arranged to provide computing and control capabilities. The memory of the computer apparatus includes an internal memory a03 and a nonvolatile storage medium a04. The nonvolatile storage medium a04 stores an operating system B01, a computer program B02, and a database (not shown). The internal memory a03 provides an environment for running the operating system B01 and the computer program B02 in the nonvolatile storage medium a04. The database of the computer device is used for storing relevant data of the hydrogen fuel cell automobile and relevant data input by an operator. The network interface a02 of the computer apparatus is used for communicating with an external terminal through a network connection. The computer program B02 is executed by the processor a01 to implement a control method for a hydrogen fuel cell vehicle.
Fig. 1 is a flowchart illustrating a control method for a hydrogen fuel cell vehicle in one embodiment. It should be understood that, although the steps in the flowchart of fig. 1 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not limited to being performed in the exact order illustrated and, unless explicitly stated herein, may be performed in other orders. Moreover, at least some of the steps in fig. 1 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least some of the sub-steps or stages of other steps.
An embodiment of the present application provides an apparatus including a processor, a memory, and a program stored on the memory and executable on the processor, the processor implementing the steps of the control method for a hydrogen fuel cell vehicle described above when executing the program.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (16)

1. A control method for a hydrogen fuel cell vehicle, the vehicle including a hybrid control switch, a hydrogen fuel cell, a power cell, the control method comprising:
acquiring the switch state of the hybrid control switch and the running parameters of the vehicle under the condition that the vehicle is determined to be in a downhill posture;
determining the predicted feedback electric energy of the vehicle according to the operating parameters;
determining a predicted residual electric quantity value after the power battery absorbs the predicted feedback electric energy based on the current residual electric quantity value;
and determining the operation power of the hydrogen fuel cell according to the switch state, the interval of the current residual electric quantity value and the interval of the predicted residual electric quantity value.
2. The control method for a hydrogen fuel cell vehicle according to claim 1, wherein the vehicle further includes an electric motor, the operating parameter includes a current vehicle speed of the vehicle, and the determining the predicted regenerative electric energy of the vehicle based on the operating parameter includes:
determining the reverse power of the motor according to the current vehicle speed;
and determining the predicted feedback electric energy of the vehicle according to the reverse power and the downhill time length of the vehicle.
3. The control method for a hydrogen fuel cell vehicle according to claim 2, wherein said determining the predicted regenerative electric energy of the vehicle based on the reverse power and a downhill period of the vehicle includes:
acquiring the running state of the vehicle;
determining a target power of the hydrogen fuel cell according to the switch state and the operation state;
determining the predicted output electric energy of the vehicle according to the reverse power, the target power and the downhill time;
acquiring required electric energy corresponding to the vehicle under the current operating parameters;
and determining the difference value of the predicted output electric energy and the required electric energy as the predicted feedback electric energy of the vehicle.
4. The control method for a hydrogen fuel cell vehicle according to claim 3, wherein the operating state includes a first state and a second state, the vehicle further includes an electric motor, and the determining the target power of the hydrogen fuel cell based on the switch state and the operating state includes:
determining the target power as the maximum power of the hydrogen fuel cell in a preset optimal efficiency interval under the condition that the switch state is on and the operation state is a first state;
and under the condition that the switch state is on and the operation state is a second state, determining the target power as the maximum output power of the hydrogen fuel cell under the current operation parameters.
5. The control method for a hydrogen fuel cell vehicle according to any one of claims 2 or 3, characterized in that the operating parameters include angle data, altitude data, and downhill initial speed of the vehicle, the method further comprising:
determining the downhill length of a downhill road section where the vehicle is located according to the angle data and the altitude data;
and determining the downhill time length according to the downhill length and the downhill initial speed.
6. The control method for a hydrogen fuel cell vehicle according to claim 1, wherein the determining the operating power of the hydrogen fuel cell based on the switch state, the interval in which the current remaining electric quantity value is present, and the interval in which the predicted remaining electric quantity value is present includes:
determining an operating state of the vehicle, the operating state comprising a first state and a second state;
determining the operating power as the maximum power of the hydrogen fuel cell within a preset optimal efficiency interval if any one of the following conditions is met:
the switch state is on, the current residual electric quantity value is in a first range, the predicted residual electric quantity value is in a first interval, and the operation state is a first state;
the switch state is on, the current residual electric quantity value is in the first range, the predicted residual electric quantity value is in a second interval, and the operation state is a second state;
the switch state is on, the current residual electric quantity value is in a second range, the predicted residual electric quantity value is in a second interval, and the operation state is a second state.
7. The control method for a hydrogen fuel cell vehicle according to claim 1, wherein the determining the operating power of the hydrogen fuel cell based on the switch state, the interval in which the current remaining amount value is present, and the interval in which the predicted remaining amount value is present includes:
determining an operating state of the vehicle, the operating state comprising a first state;
determining the operating power as the vehicle demanded power for the vehicle at the current operating parameter if any of:
the switch state is open, the current residual electric quantity value is in a first range, the predicted residual electric quantity value is in a second interval, and the running state is a first state;
the switch state is open, the current residual electric quantity value is in a second range, the predicted residual electric quantity value is in a second interval, and the operation state is a first state.
8. The control method for a hydrogen fuel cell vehicle according to claim 1, wherein the determining the operating power of the hydrogen fuel cell based on the switch state, the interval in which the current remaining electric quantity value is present, and the interval in which the predicted remaining electric quantity value is present includes:
determining an operating state of the vehicle, the operating state comprising a second state;
determining the operating power as a maximum output power of the hydrogen fuel cell at the current operating parameter if any one of the following is satisfied:
the switch state is on, the current residual electric quantity value is in a first range, the predicted residual electric quantity value is in a first interval, and the running state is a second state;
the switch state is off, the current residual electric quantity value is in a first range, and the predicted residual electric quantity value is in a first interval.
9. The control method for a hydrogen fuel cell vehicle according to claim 1, wherein the determining the operating power of the hydrogen fuel cell based on the switch state, the interval in which the current remaining electric quantity value is present, and the interval in which the predicted remaining electric quantity value is present includes:
determining the operation power of the hydrogen fuel cell as the minimum power of the hydrogen fuel cell in a preset optimal efficiency interval under the condition that the following conditions are all met:
the switch state is off;
the current residual electric quantity value is in a first range;
the predicted remaining amount value is in a second interval.
10. The control method for a hydrogen fuel cell vehicle according to claim 1, characterized by further comprising:
controlling the hydrogen fuel cell to stop operating if any one of the following is satisfied:
the switch state is on, the current residual electric quantity value is in a first range, and the predicted residual electric quantity value is in a third interval;
the switch state is open, the current residual electric quantity value is in a second range, and the predicted residual electric quantity value is in the third interval;
the switch state is open, and the current residual electric quantity value is in a third range;
the switch state is off, the current residual electric quantity value is in a first range, and the predicted residual electric quantity value is in the third interval;
the switch state is off and the current residual electric quantity value is in a fourth range.
11. The control method for a hydrogen fuel cell vehicle according to any one of claims 6 to 10, characterized in that a first range in which a first ratio between the current remaining amount of electricity and the full amount of electricity of the power cell is smaller than a first numerical value, a second range in which the first ratio is greater than or equal to the first numerical value and smaller than a second numerical value, a third range in which the first ratio is greater than or equal to the second numerical value, and a fourth range in which the first ratio is greater than or equal to the first numerical value;
the first interval is that a second ratio between the predicted remaining capacity value and the full capacity is greater than a first ratio and less than or equal to a second ratio, the second interval is that the second ratio is greater than the second ratio and less than or equal to a third ratio, and the third interval is that the second ratio is greater than the third ratio.
12. A processor characterized by being configured to execute the control method for a hydrogen fuel cell vehicle according to any one of claims 1 to 11.
13. A control apparatus for a hydrogen fuel cell vehicle, characterized by comprising:
the parameter acquisition module is used for acquiring the switching state of the hybrid power control switch and the running parameters of the vehicle under the condition that the vehicle is determined to be in a downhill posture;
the feedback electric energy prediction module is used for determining the predicted feedback electric energy of the vehicle according to the operation parameters;
the residual electric quantity predicting module is used for determining a predicted residual electric quantity value after the power battery absorbs the predicted feedback electric energy based on the current residual electric quantity value;
and the operating power determining module is used for determining the operating power of the hydrogen fuel cell according to the switch state, the interval of the current residual electric quantity value and the interval of the predicted residual electric quantity value.
14. A hydrogen fuel cell vehicle, characterized by comprising:
a hybrid control switch;
a hydrogen fuel cell for providing a primary power source for the hydrogen fuel cell vehicle;
a power cell for providing an auxiliary power source for the hydrogen fuel cell vehicle; and
the control device for a hydrogen fuel cell vehicle according to claim 13.
15. The hydrogen fuel cell vehicle according to claim 14, characterized by further comprising:
a posture detection system configured to acquire a vehicle posture of the hydrogen fuel cell vehicle;
a GPS system configured to acquire GPS signals;
an altitude detection system configured to acquire altitude data of the hydrogen fuel cell vehicle;
an electric motor.
16. A machine-readable storage medium having stored thereon instructions, characterized in that the instructions, when executed by a processor, cause the processor to be configured to execute the control method for a hydrogen fuel cell vehicle according to any one of claims 1 to 11.
CN202210955650.6A 2022-08-10 2022-08-10 Control method, processor and device for hydrogen fuel cell vehicle Active CN115352322B (en)

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