CN112721744A - Fuel cell vehicle energy control method and system based on environment temperature self-adaption - Google Patents

Fuel cell vehicle energy control method and system based on environment temperature self-adaption Download PDF

Info

Publication number
CN112721744A
CN112721744A CN202110079134.7A CN202110079134A CN112721744A CN 112721744 A CN112721744 A CN 112721744A CN 202110079134 A CN202110079134 A CN 202110079134A CN 112721744 A CN112721744 A CN 112721744A
Authority
CN
China
Prior art keywords
energy control
temperature
control strategy
fuel cell
ambient temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110079134.7A
Other languages
Chinese (zh)
Other versions
CN112721744B (en
Inventor
董德宝
李春
杨琨
樊海梅
邱远红
熊金峰
陈涛
彭程
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
King Long United Automotive Industry Suzhou Co Ltd
Original Assignee
King Long United Automotive Industry Suzhou Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by King Long United Automotive Industry Suzhou Co Ltd filed Critical King Long United Automotive Industry Suzhou Co Ltd
Priority to CN202110079134.7A priority Critical patent/CN112721744B/en
Publication of CN112721744A publication Critical patent/CN112721744A/en
Application granted granted Critical
Publication of CN112721744B publication Critical patent/CN112721744B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B60L58/40—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Landscapes

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

Abstract

The invention discloses a fuel cell vehicle energy control method based on environmental temperature self-adaptation, wherein a whole vehicle controller is provided with a low-temperature energy control strategy, a normal energy control strategy and a high-temperature energy control strategy, and the energy control method comprises the following steps: acquiring an ambient temperature; comparing the acquired ambient temperature with a preset first threshold and a preset second threshold, wherein the second threshold is larger than the first threshold; if the ambient temperature is less than a first threshold value, controlling the whole vehicle to enter a low-temperature mode, and executing a low-temperature energy control strategy; if the ambient temperature is greater than a second threshold value, controlling the whole vehicle to enter a high-temperature mode, and executing a high-temperature energy control strategy; otherwise, the whole vehicle enters a normal mode and executes a normal energy control strategy. Different energy control strategies can be adaptively switched according to the environmental temperature, the power performance and the economy of the whole vehicle and the service lives of a battery and a fuel cell can be considered, and therefore the use cost of the whole vehicle life cycle is reduced.

Description

Fuel cell vehicle energy control method and system based on environment temperature self-adaption
Technical Field
The invention belongs to the technical field of energy control of fuel cell vehicles, and particularly relates to a fuel cell vehicle energy control method and system based on environmental temperature self-adaptation.
Background
In the field of hydrogen fuel cell vehicles, because fuel cells have the problems of soft output characteristics, slow output response and the like, power cells are generally required to be carried to meet the requirements of the power performance of the whole vehicle and provide energy for starting an auxiliary system of the fuel cells.
On the whole vehicle energy control strategy, most of the current hydrogen fuel cell vehicles adopt a switch mode control strategy, and part of the vehicles adopt power following or fuzzy control strategies and the like. No matter what kind of control strategy is adopted, only one strategy is adopted all the year round, the power performance and the economical efficiency of the whole vehicle and the service lives of a battery and a fuel cell cannot be considered, particularly in cold regions in winter, the limitation of long charging current of a lithium battery and long cold starting time of the fuel cell is caused, the low-temperature starting and warming machine of the whole vehicle mainly consumes the energy of the power cell, the SOC of the power cell can be continuously reduced within a period of time, and the mileage anxiety of a user is easily caused. The manual adjustment of the control strategy according to the change of seasons and air temperatures undoubtedly increases the labor cost along with the popularization and the promotion of the hydrogen fuel commercial vehicle.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide an energy control method and system for a fuel cell vehicle based on environmental temperature adaptation, which can adaptively switch different energy control strategies according to the environmental temperature, and can give consideration to the power performance and the economy of the entire vehicle and the life of a battery and a fuel cell, thereby reducing the use cost of the entire life cycle of the entire vehicle.
The technical scheme of the invention is as follows:
a fuel cell vehicle energy control method based on environmental temperature self-adaptation is provided, a vehicle control unit is provided with a low-temperature energy control strategy, a normal energy control strategy and a high-temperature energy control strategy, and the energy control method comprises the following steps:
s01: acquiring an ambient temperature;
s02: comparing the acquired ambient temperature with a preset first threshold and a preset second threshold, wherein the second threshold is larger than the first threshold;
s03: if the ambient temperature is less than a first threshold value, controlling the whole vehicle to enter a low-temperature mode, and executing a low-temperature energy control strategy; if the ambient temperature is greater than a second threshold value, controlling the whole vehicle to enter a high-temperature mode, and executing a high-temperature energy control strategy; otherwise, the whole vehicle enters a normal mode and executes a normal energy control strategy.
In a preferred embodiment, in step S03, if the vehicle executes the low-temperature energy control strategy, the low-temperature hysteresis temperature difference is calculated
Figure BDA0002908573140000021
If the ambient temperature is
Figure BDA0002908573140000022
The normal energy control strategy is switched to be executed until Tenv＜TdownExecuting the low temperature energy control strategy by switching again, wherein TdownIs a first threshold.
In a preferred embodiment, in step S03, if the vehicle executes the normal energy control strategy, the high-temperature hysteresis temperature difference is calculated
Figure BDA0002908573140000023
If the ambient temperature Tenv＜TdownThen the low temperature energy control strategy is switched to be executed until
Figure BDA0002908573140000024
When it is switched to normalAn energy control strategy; if the ambient temperature Tenv＞TupThen the high temperature energy control strategy is switched to be executed until
Figure BDA0002908573140000025
When it is time to switch to the normal energy control strategy, where TupIs the second threshold.
In a preferred embodiment, in step S03, if the vehicle executes the high-temperature energy control strategy, if the vehicle is at an ambient temperature
Figure BDA0002908573140000026
The normal energy control strategy is switched to be executed until Tenv＞TupAnd when the energy is switched to the high-temperature energy control strategy.
In a preferred technical solution, the low-temperature energy control strategy includes a warm-up strategy, and the warm-up strategy includes the following steps:
s11: obtaining the maximum allowable continuous charging power P of the fuel cell systemchgmaxMinimum output power P of fuel cell systemfcsminReal-time loadable power P of fuel cell systemfcsopRated power P of fuel cell systemeBattery real time SOCRTSetting the maximum SOC for the first time allowed to start the stackup；
S12: when P is presentchgmax＞Pfcsmin&&SOCRT＜SOCupThe vehicle controller sends a starting signal to the fuel cell system controller and simultaneously sends a target power Po＝min(Pe,Pchgmax,Pfcsop) (ii) a Otherwise, the pure electric mode is maintained.
S13: when SOC is reachedRT≥SOCupThe vehicle controller sends target power P to the fuel cell system controllero＝PsetWherein P issetEnding the warm-up mode for the real-time target power set in the low-temperature operation strategy; otherwise, the vehicle controller continuously transmits the target power P to the fuel cell system controllero＝min(Pe,Pchgmax,Pfcsop)。
The invention also discloses a fuel cell vehicle energy control system based on the environmental temperature self-adaptation, a low-temperature energy control strategy, a normal energy control strategy and a high-temperature energy control strategy are arranged in the vehicle controller, and the control system comprises:
an acquisition module for acquiring an ambient temperature;
the comparison module is used for comparing the acquired ambient temperature with a preset first threshold and a preset second threshold, wherein the second threshold is larger than the first threshold;
the self-adaptive switching module is used for controlling the whole vehicle to enter a low-temperature mode and executing a low-temperature energy control strategy if the ambient temperature is less than a first threshold value; if the ambient temperature is greater than a second threshold value, controlling the whole vehicle to enter a high-temperature mode, and executing a high-temperature energy control strategy; otherwise, the whole vehicle enters a normal mode and executes a normal energy control strategy.
In an optimal technical scheme, in the self-adaptive switching module, if a vehicle executes a low-temperature energy control strategy, a low-temperature hysteresis temperature difference is calculated
Figure BDA0002908573140000031
If the ambient temperature is
Figure BDA0002908573140000032
The normal energy control strategy is switched to be executed until Tenv＜TdownExecuting the low temperature energy control strategy by switching again, wherein TdownIs a first threshold.
In an optimal technical scheme, in the self-adaptive switching module, if a vehicle executes a normal energy control strategy process, a high-temperature hysteresis temperature difference is calculated
Figure BDA0002908573140000033
If the ambient temperature Tenv＜TdownThen the low temperature energy control strategy is switched to be executed until
Figure BDA0002908573140000034
When the energy is switched to the normal energy control strategy; if the ambient temperature Tenv＞TupThen cutting intoThe high temperature energy control strategy is executed until
Figure BDA0002908573140000035
When it is time to switch to the normal energy control strategy, where TupIs the second threshold.
In a preferred technical solution, in the adaptive switching module, if the vehicle executes the high temperature energy control strategy, if the environment temperature is in the process of executing the high temperature energy control strategy
Figure BDA0002908573140000036
The normal energy control strategy is switched to be executed until Tenv＞TupAnd when the energy is switched to the high-temperature energy control strategy.
In a preferred technical solution, the low-temperature energy control strategy includes a warm-up strategy, and the warm-up strategy includes the following steps:
s11: obtaining the maximum allowable continuous charging power P of the fuel cell systemchgmaxMinimum output power P of fuel cell systemfcsminReal-time loadable power P of fuel cell systemfcsopRated power P of fuel cell systemeBattery real time SOCRTSetting the maximum SOC for the first time allowed to start the stackup；
S12: when P is presentchgmax＞Pfcsmin&&SOCRT＜SOCupThe vehicle controller sends a starting signal to the fuel cell system controller and simultaneously sends a target power Po＝min(Pe,Pchgmax,Pfcsop) (ii) a Otherwise, the pure electric mode is maintained.
S13: when SOC is reachedRT≥SOCupThe vehicle controller sends target power P to the fuel cell system controllero＝PsetWherein P issetEnding the warm-up mode for the real-time target power set in the low-temperature operation strategy; otherwise, the vehicle controller continuously transmits the target power P to the fuel cell system controllero＝min(Pe,Pchgmax,Pfcsop)。
Compared with the prior art, the invention has the beneficial effects that:
1. different energy control strategies can be adaptively switched according to the environmental temperature, and the whole vehicle can be ensured to have the power performance and the economical efficiency of the whole vehicle and the service life of a battery and a fuel cell in the operation all the year round, so that the use cost of the whole vehicle in the whole life cycle is reduced. The situation that the SOC of the power battery is continuously reduced within a period of time is avoided, so that the manual operation cost is saved, and the trouble to users is avoided.
2. The low-temperature warm-up strategy can solve the problem that the SOC of the power battery is continuously reduced during low-temperature starting, and greatly improves user experience.
Drawings
The invention is further described with reference to the following figures and examples:
FIG. 1 is a flow chart of an ambient temperature adaptive-based fuel cell vehicle energy control method of the present invention;
FIG. 2 is a flow chart of a warm-up strategy of the present invention;
fig. 3 is a schematic block diagram of the fuel cell vehicle energy control system based on the environmental temperature adaptation of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Examples
The fuel cell vehicle energy control method based on the environmental temperature self-adaption can automatically adjust the fuel cell vehicle energy control strategy according to seasons and air temperatures, so that the whole vehicle can give consideration to the whole vehicle power performance, the whole vehicle economy and the service lives of a battery and a fuel cell in the operation all the year round, the situation that the SOC of the power cell is continuously reduced within a period of time is avoided, the manual operation cost is saved, and the trouble to users cannot be caused. A low-temperature energy control strategy, a normal energy control strategy and a high-temperature energy control strategy are arranged in a Vehicle Control Unit (VCU), and the specific low-temperature energy control strategy, the normal energy control strategy and the high-temperature energy control strategy can adopt the existing control strategies, which is not limited herein.
The energy control method comprises the following steps:
s01: acquiring an ambient temperature;
s02: comparing the acquired ambient temperature with a preset first threshold and a preset second threshold, wherein the second threshold is larger than the first threshold;
s03: if the ambient temperature is less than a first threshold value, controlling the whole vehicle to enter a low-temperature mode, and executing a low-temperature energy control strategy; if the ambient temperature is greater than a second threshold value, controlling the whole vehicle to enter a high-temperature mode, and executing a high-temperature energy control strategy; otherwise, the whole vehicle enters a normal mode and executes a normal energy control strategy.
As shown in fig. 1, the specific VCU execution logic is as follows:
(1) starting the fuel cell system, executing 1, VCU reading the ambient temperature T fed back by the temperature sensorenvFirst, the temperature is adjusted to a set lower limit TdownAnd an upper temperature limit TupBy comparison, if Tenv＜TdownExecuting 11, and entering a low-temperature strategy; if Tdown≤Tenv≤TupExecuting 21, and entering a normal strategy; if Tenv＞TupAnd executing 31, and entering a high-temperature strategy.
(2) And entering a low-temperature energy control strategy and executing 111. During the operation of the vehicle, if the ambient temperature rises
Figure BDA0002908573140000051
Then execution 21 switches to normal policy until Tenv＜TdowWhen so, executing 11, and switching to the low-temperature strategy again; if always
Figure BDA0002908573140000052
The low temperature strategy is maintained, executing 11 all the time. Wherein
Figure BDA0002908573140000053
Is the low-temperature hysteresis temperature difference,
Figure BDA0002908573140000054
the adjustment can be carried out by obtaining through empirical calculation and presetting the adjustment in the controller.
(3) A normal energy control strategy is entered and executed 211. During vehicle operation, T occurs if the ambient temperature decreasesenv＜TdownThen 11 is executed, switching to the low temperature strategy, until
Figure BDA0002908573140000055
If so, executing 21, and switching to the normal strategy again; execution 212, if ambient temperature increases T occursenv＞TupThen a switch to the high temperature strategy is performed 31 until
Figure BDA0002908573140000056
If so, executing 21, and switching to the normal strategy again; if always Tdown≤Tenv≤TupThen 21 is always executed to maintain the normal policy. Wherein
Figure BDA0002908573140000061
In order to obtain a high temperature hysteresis temperature difference,
Figure BDA0002908573140000062
the adjustment can be carried out by obtaining through empirical calculation and presetting the adjustment in the controller.
(4) And entering a high-temperature energy control strategy and executing 311. During vehicle operation, if the ambient temperature decreases
Figure BDA0002908573140000063
Then 21 is executed and the normal policy is switched to be executed until Tenv＞TupIf so, executing 31, and switching to the high-temperature strategy again; if always
Figure BDA0002908573140000064
The high temperature strategy is maintained, executing 31 all the time.
In a preferred embodiment, the low-temperature energy control strategy of the present invention further includes a warm-up strategy, and as shown in fig. 2, the low-temperature warm-up strategy specifically includes the following steps:
(1) starting the vehicle, executing 1, when Tenv＜TdownAnd 1111, entering a low-temperature pure electric mode and starting warming up, and 2, entering a normal or high-temperature mode.
(2) Performing 1121 when Pchgmax＞Pfcsmin&&SOCRT＜SOC up1131 is executed, the VCU sends an activation signal to the FCU and simultaneously sends the target power Po＝min(Pe,Pchgmax,Pfcsop) Otherwise 1121 is performed. Wherein P ischgmaxMaximum charging power, P, allowed for the batteryfcsminIs the minimum output power, P, of the fuel cell systemeRated power, P, for a fuel cell systemfcsopReal-time loadable power, SOC, for a fuel cell systemRTFor real-time SOC, SOC of batteryupThe above parameters may be obtained by the battery management system for a set maximum SOC for the first time that a stack start is allowed.
(3) Executing 1141 when the SOC isRT≥SOCupExecution 1151, VCU sends target power P to FCUo＝PsetThe warm-up mode is ended, otherwise execution continues at 1131. Wherein P issetThe real-time target power set in the low-temperature operation strategy.
Therefore, the VCU is sent to the FCU according to the maximum allowable power as the target power within a period of time after the fuel cell is started, so that the SOC of the power cell which is continuously reduced is rapidly increased, and a user can drive the fuel cell with ease after the warming-up is finished.
In another embodiment, as shown in fig. 3, an environment temperature adaptive fuel cell vehicle energy control system is provided, where a vehicle controller is provided with a low-temperature energy control strategy, a normal energy control strategy, and a high-temperature energy control strategy, and the control system includes:
an acquisition module for acquiring an ambient temperature;
the comparison module is used for comparing the acquired ambient temperature with a preset first threshold and a preset second threshold, wherein the second threshold is larger than the first threshold;
the self-adaptive switching module is used for controlling the whole vehicle to enter a low-temperature mode and executing a low-temperature energy control strategy if the ambient temperature is less than a first threshold value; if the ambient temperature is greater than a second threshold value, controlling the whole vehicle to enter a high-temperature mode, and executing a high-temperature energy control strategy; otherwise, the whole vehicle enters a normal mode and executes a normal energy control strategy.
The specific control strategy is the same as the method of the above embodiment, and is not described herein again.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (10)

1. A fuel cell vehicle energy control method based on environmental temperature self-adaptation is characterized in that a whole vehicle controller is provided with a low-temperature energy control strategy, a normal energy control strategy and a high-temperature energy control strategy, and the energy control method comprises the following steps:
s01: acquiring an ambient temperature;
s02: comparing the acquired ambient temperature with a preset first threshold and a preset second threshold, wherein the second threshold is larger than the first threshold;
s03: if the ambient temperature is less than a first threshold value, controlling the whole vehicle to enter a low-temperature mode, and executing a low-temperature energy control strategy; if the ambient temperature is greater than a second threshold value, controlling the whole vehicle to enter a high-temperature mode, and executing a high-temperature energy control strategy; otherwise, the whole vehicle enters a normal mode and executes a normal energy control strategy.
2. The adaptive ambient temperature-based fuel cell vehicle energy control method of claim 1, wherein the adaptive ambient temperature-based fuel cell vehicle energy control methodIn step S03, if the vehicle executes the low temperature energy control strategy, the low temperature hysteresis temperature difference is calculated
Figure FDA0002908573130000011
If the ambient temperature is
Figure FDA0002908573130000012
The normal energy control strategy is switched to be executed until Tenv＜TdownExecuting the low temperature energy control strategy by switching again, wherein TdownIs a first threshold.
3. The adaptive ambient temperature-based fuel cell vehicle energy control method according to claim 1, wherein in step S03, the high temperature hysteresis temperature difference is calculated if the vehicle executes a normal energy control strategy
Figure FDA0002908573130000013
If the ambient temperature Tenv＜TdownThen the low temperature energy control strategy is switched to be executed until
Figure FDA0002908573130000014
When the energy is switched to the normal energy control strategy; if the ambient temperature Tenv＞TupThen the high temperature energy control strategy is switched to be executed until
Figure FDA0002908573130000015
When it is time to switch to the normal energy control strategy, where TupIs the second threshold.
4. The adaptive ambient temperature-based fuel cell vehicle energy control method according to claim 1, wherein in step S03, if the vehicle executes the high temperature energy control strategy, if the ambient temperature is higher than the predetermined temperature
Figure FDA0002908573130000016
The normal energy control strategy is switched to be executed until Tenv＞TupAnd when the energy is switched to the high-temperature energy control strategy.
5. The ambient temperature adaptive-based fuel cell vehicle energy control method of claim 1, wherein the low temperature energy control strategy comprises a warm-up strategy comprising the steps of:
s11: obtaining the maximum allowable continuous charging power P of the fuel cell systemchgmaxMinimum output power P of fuel cell systemfcsminReal-time loadable power P of fuel cell systemfcsopRated power P of fuel cell systemeBattery real time SOCRTSetting the maximum SOC for the first time allowed to start the stackup；
S12: when P is presentchgmax＞Pfcsmin&&SOCRT＜SOCupThe vehicle controller sends a starting signal to the fuel cell system controller and simultaneously sends a target power Po＝min(Pe,Pchgmax,Pfcsop) (ii) a Otherwise, the pure electric mode is maintained.
S13: when SOC is reachedRT≥SOCupThe vehicle controller sends target power P to the fuel cell system controllero＝PsetWherein P issetEnding the warm-up mode for the real-time target power set in the low-temperature operation strategy; otherwise, the vehicle controller continuously transmits the target power P to the fuel cell system controllero＝min(Pe,Pchgmax,Pfcsop)。
6. The utility model provides a fuel cell car energy control system based on ambient temperature self-adaptation which characterized in that is provided with low temperature energy control strategy, normal energy control strategy and high temperature energy control strategy in the vehicle control unit, and control system includes:
an acquisition module for acquiring an ambient temperature;
the comparison module is used for comparing the acquired ambient temperature with a preset first threshold and a preset second threshold, wherein the second threshold is larger than the first threshold;
the self-adaptive switching module is used for controlling the whole vehicle to enter a low-temperature mode and executing a low-temperature energy control strategy if the ambient temperature is less than a first threshold value; if the ambient temperature is greater than a second threshold value, controlling the whole vehicle to enter a high-temperature mode, and executing a high-temperature energy control strategy; otherwise, the whole vehicle enters a normal mode and executes a normal energy control strategy.
7. The adaptive ambient temperature-based fuel cell vehicle energy control system of claim 6, wherein the adaptive switching module calculates the low temperature hysteresis temperature difference if the vehicle is performing the low temperature energy control strategy
Figure FDA0002908573130000021
If the ambient temperature is
Figure FDA0002908573130000022
The normal energy control strategy is switched to be executed until Tenv＜TdownExecuting the low temperature energy control strategy by switching again, wherein TdownIs a first threshold.
8. The adaptive ambient temperature-based fuel cell vehicle energy control system of claim 6, wherein the adaptive switching module calculates the high temperature hysteresis temperature difference if the vehicle is performing a normal energy control strategy
Figure FDA0002908573130000031
If the ambient temperature Tenv＜TdownThen the low temperature energy control strategy is switched to be executed until
Figure FDA0002908573130000032
When the energy is switched to the normal energy control strategy; if the ambient temperature Tenv＞TupThen the high temperature energy control strategy is switched to be executed until
Figure FDA0002908573130000033
When it is time to switch to the normal energy control strategy, where TupIs the second threshold.
9. The adaptive ambient temperature-based fuel cell vehicle energy control system of claim 6, wherein the adaptive switching module is configured to switch the adaptive switching module to the adaptive switching module if the ambient temperature is detected during the vehicle executing the high temperature energy control strategy
Figure FDA0002908573130000034
The normal energy control strategy is switched to be executed until Tenv＞TupAnd when the energy is switched to the high-temperature energy control strategy.
10. The ambient temperature adaptive-based fuel cell vehicle energy control system of claim 6, wherein the low temperature energy control strategy comprises a warm-up strategy comprising the steps of:
s11: obtaining the maximum allowable continuous charging power P of the fuel cell systemchgmaxMinimum output power P of fuel cell systemfcsminReal-time loadable power P of fuel cell systemfcsopRated power P of fuel cell systemeBattery real time SOCRTSetting the maximum SOC for the first time allowed to start the stackup；
S12: when P is presentchgmax＞Pfcsmin&&SOCRT＜SOCupThe vehicle controller sends a starting signal to the fuel cell system controller and simultaneously sends a target power Po＝min(Pe,Pchgmax,Pfcsop) (ii) a Otherwise, the pure electric mode is maintained.
S13: when SOC is reachedRT≥SOCupThe vehicle controller sends target power P to the fuel cell system controllero＝PsetWherein P issetEnding the warm-up mode for the real-time target power set in the low-temperature operation strategy; otherwise, the vehicle controller gives the fuel cell system controllerContinuing to transmit target power Po＝min(Pe,Pchgmax,Pfcsop)。
CN202110079134.7A 2021-01-21 2021-01-21 Fuel cell vehicle energy control method and system based on environment temperature self-adaption Active CN112721744B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110079134.7A CN112721744B (en) 2021-01-21 2021-01-21 Fuel cell vehicle energy control method and system based on environment temperature self-adaption

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110079134.7A CN112721744B (en) 2021-01-21 2021-01-21 Fuel cell vehicle energy control method and system based on environment temperature self-adaption

Publications (2)

Publication Number Publication Date
CN112721744A true CN112721744A (en) 2021-04-30
CN112721744B CN112721744B (en) 2022-07-12

Family

ID=75594516

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110079134.7A Active CN112721744B (en) 2021-01-21 2021-01-21 Fuel cell vehicle energy control method and system based on environment temperature self-adaption

Country Status (1)

Country Link
CN (1) CN112721744B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115172828A (en) * 2022-07-26 2022-10-11 上海杰宁新能源科技发展有限公司 Fuel cell water-heat combined control method, system and storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160141673A1 (en) * 2014-11-14 2016-05-19 Toyota Jidosha Kabushiki Kaisha Fuel cell system, fuel cell vehicle, and control method for fuel cell system
DE102017220135A1 (en) * 2017-11-13 2019-05-16 Bayerische Motoren Werke Aktiengesellschaft Method and control unit for operating a fuel cell in a vehicle
CN110191011A (en) * 2019-04-15 2019-08-30 厦门科灿信息技术有限公司 Smart machine monitoring method, device and equipment based on data center's monitoring system
CN111409502A (en) * 2020-03-25 2020-07-14 武汉格罗夫氢能汽车有限公司 Hydrogen fuel cell automobile and motor energy management method thereof in low-temperature environment
CN111775774A (en) * 2020-06-23 2020-10-16 西安法士特汽车传动有限公司 Fuel cell control method for hydrogen fuel cell vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160141673A1 (en) * 2014-11-14 2016-05-19 Toyota Jidosha Kabushiki Kaisha Fuel cell system, fuel cell vehicle, and control method for fuel cell system
DE102017220135A1 (en) * 2017-11-13 2019-05-16 Bayerische Motoren Werke Aktiengesellschaft Method and control unit for operating a fuel cell in a vehicle
CN110191011A (en) * 2019-04-15 2019-08-30 厦门科灿信息技术有限公司 Smart machine monitoring method, device and equipment based on data center's monitoring system
CN111409502A (en) * 2020-03-25 2020-07-14 武汉格罗夫氢能汽车有限公司 Hydrogen fuel cell automobile and motor energy management method thereof in low-temperature environment
CN111775774A (en) * 2020-06-23 2020-10-16 西安法士特汽车传动有限公司 Fuel cell control method for hydrogen fuel cell vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115172828A (en) * 2022-07-26 2022-10-11 上海杰宁新能源科技发展有限公司 Fuel cell water-heat combined control method, system and storage medium

Also Published As

Publication number Publication date
CN112721744B (en) 2022-07-12

Similar Documents

Publication Publication Date Title
WO2022021795A1 (en) Electric vehicle low-temperature charging control system and control method thereof
CN112172607B (en) Battery heat preservation control system for completing charging of electric automobile
CN109501619A (en) A kind of power battery method for controlling temperature rise, device, equipment and automobile
CN111600049B (en) Novel energy output management method of hydrogen engine
CN109244568B (en) Control method and device for power battery and vehicle
WO2019178976A1 (en) Solar battery system and control method thereof
CN110880628B (en) Battery temperature pretreatment and battery thermal management method based on temperature change rate
CN109301399B (en) Multi-branch regional power battery system heating method and system
KR101599115B1 (en) Battery temperature control device
CN111391716A (en) Vehicle control method and system and vehicle
CN109449542A (en) A kind of power battery preheating method, apparatus and automobile
CN113997828A (en) Quick charging heating control method for electric automobile at low temperature
CN112721744B (en) Fuel cell vehicle energy control method and system based on environment temperature self-adaption
CN113650531A (en) Self-heating system and method for power battery of hydrogen energy fuel cell automobile
CN111129659B (en) Charging heating control method and system for vehicle battery
CN113103918A (en) Control method and system for disconnecting relay
CN208608323U (en) A kind of electric automobile power battery pre-heating system based on mobile client
CN115411410A (en) Power battery gun insertion heat insulation control system and method, vehicle and medium
CN114030389B (en) Electric automobile battery thermal management control method and device
CN212517269U (en) Hydrogen engine
CN113525179B (en) Dynamic response control method of fuel cell
CN114274823A (en) Charging energy management system and method of electric automobile and electric automobile
CN108258369A (en) A kind of pure electric city bus power battery temperature control method and system
CN114475351A (en) Storage battery charging management system and management method for electric automobile and electric automobile
CN112319311A (en) Power battery self-starting control system and method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant