CN112758882B - Method and device for filling coolant in fuel cell vehicle - Google Patents
Method and device for filling coolant in fuel cell vehicle Download PDFInfo
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- CN112758882B CN112758882B CN201911071720.6A CN201911071720A CN112758882B CN 112758882 B CN112758882 B CN 112758882B CN 201911071720 A CN201911071720 A CN 201911071720A CN 112758882 B CN112758882 B CN 112758882B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/56—Arrangements of flow-indicators, e.g. transparent compartments, windows, rotary vanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/78—Arrangements of storage tanks, reservoirs or pipe-lines
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Mathematical Physics (AREA)
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- Electric Propulsion And Braking For Vehicles (AREA)
- Fuel Cell (AREA)
Abstract
The invention provides a method and a device for filling cooling liquid in a fuel cell vehicle, which comprises the following steps: the main pipeline is connected with the cooling liquid tank and used for conveying cooling liquid, and the filling water pump is arranged on the main pipeline; the flowmeter is arranged on the main pipeline and used for detecting the conveying amount of the cooling liquid; the liquid level sensor is arranged in the expansion tank and used for detecting the liquid level of the cooling liquid in the expansion tank; and the filling water pump and the flowmeter are connected with the filling controller, the filling controller is in signal connection with the vehicle-mounted controller, and the liquid level sensor and the vehicle-mounted water pump are connected with the vehicle-mounted controller. According to the invention, by combining with the exhaust control of the vehicle-mounted water pump, automatic coolant filling is realized, the coolant filling time of an FCV vehicle type is reduced, the operation difficulty of field operators in a final assembly plant is reduced, the offline debugging rhythm of the vehicle is promoted, and the production efficiency is improved.
Description
Technical Field
The invention relates to the field of fuel cell vehicle production, in particular to a method and a device for filling cooling liquid in a fuel cell vehicle.
Background
Aiming at Fuel Cell vehicles (including passenger vehicles, logistics vehicles, buses and the like), the thermal management system has decisive influence on the performances of a Fuel Cell Engine (FCE) such as dynamic property, economy, durability, safety and the like. When the cooling liquid is filled in the assembly plant, the quick filling and exhausting are very critical, and the whole vehicle is off-line, debugged and operated greatly. Due to the special structure of the FCE, part types of FCE are not suitable for vacuum filling, so that most of the conventional FCE vehicles only can adopt an original manual water filling mode when filling cooling liquid, time and labor are consumed, efficiency is low, and the offline rhythm of the vehicles is seriously influenced.
There is therefore a need for a method and apparatus for efficiently charging coolant.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides a method and a device for filling coolant in a fuel cell vehicle, which are used to solve the problem of low coolant filling efficiency in the prior art.
To achieve the above and other related objects, the present invention provides a method for filling a coolant in a fuel cell vehicle, including:
1) starting a filling water pump to fill cooling liquid into the FCE thermal management system, detecting the flow of the added cooling liquid and whether the liquid level in the expansion tank is a low liquid level in real time, outputting a low liquid level signal when the liquid level in the expansion tank is the low liquid level, detecting whether the low liquid level signal disappears, if the disappearance lasts for the first time, closing the filling water pump, simultaneously detecting whether the current filling amount of the cooling liquid is matched with the calibrated filling amount, if yes, completing filling, and if not, executing the step 2);
2) starting the vehicle-mounted water pump, controlling the vehicle-mounted water pump to exhaust, simultaneously detecting whether a low liquid level signal appears, if yes, circulating the step 1), if not, continuing to exhaust until the exhaust is completed, executing a program after the exhaust is completed, wherein the program after the exhaust is specifically: and closing the vehicle-mounted water pump, simultaneously detecting whether the current filling amount of the cooling liquid is matched with the calibration filling amount, if so, completing filling, otherwise, operating the filling water pump until the current filling amount of the cooling liquid is detected to be matched with the calibration filling amount, and completing filling.
Preferably, the specific control process of the vehicle-mounted water pump in the step 2) of exhausting is as follows:
a) the vehicle-mounted water pump runs at an initial rotating speed to exhaust, meanwhile, the disappearance time of the low liquid level signal is detected, when no low liquid level signal appears and the disappearance time continuously exceeds a preset second time, whether the current rotating speed of the vehicle-mounted water pump is the maximum rotating speed value or not is detected, if yes, the step b) is carried out, and if not, the step c) is carried out; when a low liquid level signal appears, the step 1) is circulated; wherein the second time is greater than the first time;
b) the vehicle-mounted water pump continuously operates at the maximum rotating speed value, and if a low liquid level signal appears, the step 1) is circulated; if the low liquid level signal does not appear and the continuous non-appearing time exceeds the preset third time, finishing the exhaust and executing the exhaust finishing program;
c) increasing the rotating speed of the vehicle-mounted water pump, increasing the rotating speed of the vehicle-mounted water pump once every fourth time, detecting whether a low liquid level signal appears or not in the fourth time process of running of the vehicle-mounted water pump after a preset rotating speed value is increased every time, and continuing to increase the rotating speed value if the low liquid level signal does not appear until the current rotating speed of the vehicle-mounted water pump is the maximum rotating speed value, and entering the step b); if so, looping said step 1).
Preferably, in the step c), the preset rotation speed value of each increase of the vehicle-mounted water pump is 1000 rpm.
Preferably, in the step 2), before the vehicle-mounted water pump is closed, whether the water pressure of the fuel cell vehicle in and out is matched with a preset water pressure calibration value is detected, and if the water pressure of the fuel cell vehicle in and out is matched with the preset water pressure calibration value, the air exhaust is finished and the vehicle-mounted water pump is closed; if not, the vehicle-mounted water pump is continuously operated.
Preferably, before the step 1), a vehicle type of the currently-filled fuel cell vehicle is selected in the filling system, and the calibrated filling amount corresponding to the vehicle type of the currently-filled fuel cell vehicle is called.
Preferably, the matching of the current filling amount of the cooling liquid and the calibration filling amount specifically means: and the difference value between the current filling amount and the calibrated filling amount of the cooling liquid is smaller than a rated difference value, and the rated difference value is 100 ml.
The invention also provides a device for filling the cooling liquid in the fuel cell vehicle, which is used for realizing the method for filling the cooling liquid in the fuel cell vehicle, and comprises the following steps: the main pipeline is connected with the cooling liquid tank and used for conveying cooling liquid, and the filling water pump is arranged on the main pipeline;
the flowmeter is arranged on the main pipeline and used for detecting the conveying amount of the cooling liquid;
the liquid level sensor is arranged in the expansion tank and used for detecting the liquid level of the cooling liquid in the expansion tank;
and the filling water pump and the flowmeter are connected with the filling controller, the filling controller is in signal connection with the vehicle-mounted controller, and the liquid level sensor and the vehicle-mounted water pump are connected with the vehicle-mounted controller.
Preferably, the main pipeline is provided with an electromagnetic valve for controlling the on-off of the main pipeline, and the electromagnetic valve is connected with the filling controller.
Preferably, the main pipeline is connected with a cooling liquid injection pipe of the fuel cell vehicle, and the cooling liquid injection pipe is provided with a one-way valve.
Preferably, the device for filling the cooling liquid in the fuel cell vehicle further comprises a display control panel connected with the filling controller.
As described above, the method and the device for filling coolant in a fuel cell vehicle according to the present invention have the following advantageous effects: it realizes automatic coolant liquid filling through combining on-vehicle water pump exhaust control, and it has reduced the coolant liquid filling time of FCV motorcycle type, reduces assembly plant site operation personnel's the operation degree of difficulty, promotes vehicle debugging rhythm of inserting the production efficiency.
Drawings
Fig. 1 is a schematic view showing a coolant filling apparatus for a fuel cell vehicle according to the present invention.
Fig. 2 shows a control schematic block diagram of the filling controller according to the present invention.
Fig. 3 is a flow chart showing a method for filling the coolant in the fuel cell vehicle according to the present invention.
Description of the element reference numerals
100 filling system
102 flow meter
103 filling controller
104 filling water pump
105 cooling liquid box
106 display control panel
107 main pipeline
201 expansion tank
202 one-way valve
203 vehicle water pump
204 electric heater
205 fuel cell engine
206 exhaust pipe
207 water compensating pipe
208 liquid level sensor
209 vehicle-mounted controller
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure of the present invention.
Please refer to fig. 1 to 3. It should be understood that the structures, ratios, sizes, etc. shown in the drawings are only used for matching the disclosure of the present disclosure to be understood and read by those skilled in the art, and are not used to limit the practical limitations of the present disclosure, so that the modifications, ratios, and sizes of any structures or changes of the ratio or adjustments of the sizes should still fall within the scope of the disclosure of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are used for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms may be changed or adjusted without substantial change in the technical content.
The invention provides a coolant filling device in a fuel cell vehicle, which is used for realizing the automatic filling of the coolant in the fuel cell vehicle, and is realized by matching a filling system 100 with a thermal management system integrated in an FCE (fiber channel express), and comprises the following components: as shown in figures 1 and 2 of the drawings,
a main pipeline 107 connected with the cooling liquid tank 105 and used for conveying cooling liquid, and a filling water pump 104 arranged on the main pipeline 107;
a flow meter 102 provided on the main line 107 for detecting the amount of coolant delivered;
a liquid level sensor 208 provided in the expansion tank 201 for detecting the level of the cooling liquid in the expansion tank 201;
the filling controller 103, the filling water pump 104, the flowmeter 102 and the liquid level sensor 208 are all connected with the filling controller 103, the filling controller 103 is in signal connection with the vehicle-mounted controller 209, and the vehicle-mounted controller is connected with the vehicle-mounted water pump.
According to the invention, the filling controller 103 is arranged and is connected with the vehicle-mounted controller 209 of the fuel cell vehicle by a signal, so that the liquid level information of the cooling liquid in the expansion tank 201 in the vehicle can be obtained, the filling of the cooling liquid by the filling water pump 104 is regulated and controlled according to the liquid level information, and meanwhile, the exhaust is carried out by combining the operation of the vehicle-mounted water pump 203, so that the high-efficiency automatic filling of the cooling liquid is realized, the filling time of the cooling liquid of an FCV vehicle type is reduced, the operation difficulty of field operators of a final assembly plant is reduced, the off-line debugging rhythm of the vehicle is improved, and the production efficiency is improved.
Wherein 100 in fig. 1 is a filling system, which is a mechanism independently arranged outside a fuel cell vehicle and is mainly used for automatic filling of cooling liquid in the fuel cell vehicle; the thermal management system integrated in the fuel cell engine FCE205 is an integrated system on an existing fuel cell vehicle, and is mainly controlled by a fuel cell engine controller FCU (also referred to as the vehicle-mounted controller), and is mainly used for controlling the FCE, the electric heater PTC204, the vehicle-mounted water pump 203, and the like, and the expansion tank 201 is connected to a thermal management system loop through a water replenishing pipe 207 and is used for replenishing water and exhausting air to the thermal management system. The radiator is connected to the expansion tank 201 via an exhaust pipe 206 and an on-board water pump 203 is used to drive a water flow to carry heat out of the FCE interior. The electric heater PTC204 is used to heat the water flow to meet the FCE demand for increased water temperature during the winter season.
In order to avoid the coolant from impacting the filling water pump 104, in this embodiment, an electromagnetic valve 101 for controlling the on-off of the main pipeline 107 is arranged on the main pipeline 107, and the electromagnetic valve 101 is connected with the filling controller 103; the coolant flow direction is indicated as the front, and the solenoid valve 101 is provided in front of the filling water pump 104 in this embodiment. When the filling water pump 104 is started, the electromagnetic valve 101 is firstly opened and then the filling water pump 104 is started, and when the filling water pump 104 is closed, the electromagnetic valve 101 is firstly closed and then the filling water pump 104 is closed, so that the impact of water flow sudden stop on the filling water pump 104 is reduced.
In this embodiment, the main pipe 107 is connected to a coolant injection pipe of the fuel cell vehicle, and the coolant injection pipe is provided with a check valve 202 to prevent the coolant in the fuel cell vehicle from flowing back.
In order to facilitate the filling of different vehicle types, the filling apparatus for coolant in a fuel cell vehicle in this embodiment further includes a display control panel 106 connected to the filling controller 103, and the display control panel 106 may display a vehicle type selection interface to select a vehicle type, so as to be able to use data of various parameters, such as a calibrated filling amount, stored in the filling controller and corresponding to the vehicle type.
In this embodiment, because of the special requirement of FCE for the coolant, the main pipe 107 needs to be a clean and pollution-free silicone tube, the metal parts such as the valve body of the electromagnetic valve 101 need to be made of SUS316L, and the coolant tank 105 needs to be made of PP or other acceptable materials that do not pollute the coolant.
The invention also provides a method for filling the cooling liquid in the fuel cell vehicle, which can be realized by adopting the device for filling the cooling liquid in the fuel cell vehicle, and comprises the following steps:
1) starting the filling water pump 104 to fill cooling liquid into the FCE thermal management system, detecting the flow of the added cooling liquid and whether the liquid level in the expansion tank 201 is a low liquid level in real time, outputting a low liquid level signal when the liquid level in the expansion tank 201 is the low liquid level, detecting whether the low liquid level signal disappears, if the low liquid level signal disappears for the first time, closing the filling water pump 104, meanwhile, detecting whether the current filling amount of the cooling liquid is matched with the calibrated filling amount, if so, completing filling, and if not, executing the step 2);
2) starting the vehicle-mounted water pump 203, controlling the vehicle-mounted water pump 203 to exhaust, simultaneously detecting whether a low liquid level signal appears, if so, circulating the step 1), and if not, continuing to exhaust until the exhaust is finished and the exhaust finishing program is executed, wherein the exhaust finishing program specifically comprises the following steps: and closing the vehicle-mounted water pump 203, detecting whether the current filling amount of the cooling liquid is matched with the calibration filling amount or not, if so, completing the filling, otherwise, operating the filling water pump until the current filling amount of the cooling liquid is detected to be matched with the calibration filling amount, and completing the filling.
The invention controls the on-off of the filling water pump 104, and automatically realizes the filling of the expansion tank 201 with the cooling liquid and the exhaust simultaneously by combining the operation control of the vehicle-mounted water pump 203, thereby realizing the automatic filling of the cooling liquid, reducing the filling time of the cooling liquid of an FCV vehicle type, reducing the operation difficulty of field operators of a final assembly plant, improving the offline debugging rhythm of vehicles and improving the production efficiency.
In order to increase the exhaust rate, the specific control process of the vehicle-mounted water pump 203 in the step 2) of exhaust in this embodiment is as follows:
a) the vehicle-mounted water pump 203 runs at an initial rotating speed to exhaust, meanwhile, the disappearance time of the low liquid level signal is detected, when no low liquid level signal appears and the disappearance time continuously exceeds a preset second time, whether the current rotating speed of the vehicle-mounted water pump 203 is the maximum rotating speed value or not is detected, if yes, the step b) is executed, and if not, the step c) is executed; when a low liquid level signal appears, the step 1) is circulated; wherein the second time is greater than the first time;
b) the vehicle-mounted water pump 203 continuously operates at the maximum rotating speed value, and if a low liquid level signal appears, the step 1) is circulated; if the low liquid level signal does not appear and the continuous non-appearing time exceeds the preset third time, finishing the exhaust and executing the exhaust finishing program;
c) increasing the rotating speed of the vehicle-mounted water pump 203, increasing the rotating speed of the vehicle-mounted water pump once every fourth time, detecting whether a low liquid level signal appears in the fourth time process of the vehicle-mounted water pump operation after the preset rotating speed value is increased every time, and continuing to increase the rotating speed value if the low liquid level signal does not appear until the current rotating speed of the vehicle-mounted water pump is the maximum rotating speed value, and entering the step b); if so, looping said step 1).
The on-vehicle water pump 203 rotational speed of promotion of notch cuttype is passed through to this completion is discharged, improves coolant liquid filling efficiency.
As a specific embodiment of the method for filling the cooling liquid in the fuel cell vehicle, the method can comprise the following specific steps: as shown in figure 3 of the drawings,
1) selecting a vehicle type, namely selecting the vehicle type of a currently-filled fuel cell vehicle in a filling system, entering a vehicle type filling interface through a display control panel 106 in the embodiment, selecting the vehicle type in the vehicle type filling interface, and calling a calibration filling amount corresponding to the vehicle type of the currently-filled fuel cell vehicle and corresponding parameters, such as a preset rotating speed value and the like;
2) starting the filling water pump 104 to fill cooling liquid into the thermal management system of the FCE, detecting the flow rate of the added cooling liquid in real time through the flowmeter 102, and detecting whether the liquid level of the expansion tank 201 is a low liquid level through the liquid level sensor 208, when the liquid level of the expansion tank 201 is the low liquid level, the liquid level sensor 208 outputs a low liquid level signal, and after the low liquid level signal disappears and lasts for a first time (in the embodiment, the first time is 5s, which may also be 0s), closing the filling water pump 104, and simultaneously detecting whether the current filling amount of the cooling liquid is matched with the calibrated filling amount, if so, completing filling, otherwise, executing step 3);
3) starting the vehicle-mounted water pump 203 to exhaust, closing the filling water pump 104, operating the vehicle-mounted water pump 203 at an initial rotation speed (in this embodiment, the initial rotation speed is 2500rpm) to exhaust, and simultaneously detecting disappearance time of the low liquid level signal by the vehicle-mounted controller 209, and transmitting the disappearance time to the filling controller 103, when no low liquid level signal appears and the disappearance time continuously exceeds a preset second time (in this embodiment, the second time may be 15s), detecting whether the current rotation speed of the vehicle-mounted water pump 203 is a maximum rotation speed value, if so, entering step 4), and if not, entering step 5); when a low liquid level signal appears, the step 2) is circulated; wherein the second time is greater than the first time;
4) the vehicle-mounted water pump 203 continuously operates at the maximum rotating speed value, and if a low liquid level signal appears, the step 1) is circulated; if the low liquid level signal does not appear and the continuous non-appearing time exceeds the preset third time (the third time in the embodiment can be 3min, or 1min or 2min), closing the vehicle-mounted water pump 203, comparing whether the current filling amount of the cooling liquid is matched with the calibrated filling amount, if not, operating the filling water pump until the current filling amount of the cooling liquid is matched with the calibrated filling amount, completing filling, and if so, completing filling and closing the filling water pump; before the vehicle-mounted water pump is closed, whether exhaust is finished or not needs to be detected, whether the water pressure of the FCE inlet and outlet is matched with a preset water pressure calibration value or not is detected in the embodiment, and if the water pressure of the FCE inlet and outlet is matched with the preset water pressure calibration value, exhaust is finished and the vehicle-mounted water pump is closed; if not, the vehicle-mounted water pump is continuously operated;
5) increasing the rotation speed of the vehicle-mounted water pump 203, increasing the rotation speed of the vehicle-mounted water pump once every fourth time (in the embodiment, the third time may be 1min, and may also be 30s, 2min, and the like), detecting whether a low liquid level signal appears during the fourth time when the vehicle-mounted water pump 203 operates after a preset rotation speed value is increased each time, and continuing to increase the rotation speed value if the low liquid level signal does not appear until the current rotation speed of the vehicle-mounted water pump 203 is the maximum rotation speed value, and entering step 4); if so, loop through step 2).
Preferably, the matching of the current filling amount of the cooling liquid and the calibration filling amount specifically means: the difference value between the current filling amount and the calibrated filling amount of the cooling liquid is smaller than a rated difference value, and the rated difference value is 100 ml; for convenience of implementation, the current filling amount of the coolant and the calibration filling amount have a nominal difference, and the two may not be identical.
For convenience of control, the preset rotating speed value of the vehicle-mounted water pump increased every time in the embodiment is 1000 rpm; the rotation speed can be other rotation speed values, such as 500rpm and 1500rpm, and the smaller the rotation speed value, the longer the time for regulating and controlling the maximum rotation speed is, but the exhaust is easy to control.
In conclusion, the method and the device for filling the cooling liquid in the fuel cell vehicle realize automatic filling of the cooling liquid by combining with the exhaust control of the vehicle-mounted water pump, reduce the filling time of the cooling liquid in an FCV vehicle type, reduce the operation difficulty of field operators in a final assembly plant, improve the off-line debugging rhythm of the vehicle and improve the production efficiency. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A method for filling coolant in a fuel cell vehicle, comprising:
1) starting a filling water pump to fill cooling liquid into the FCE thermal management system, detecting the flow of the added cooling liquid and whether the liquid level in the expansion tank is a low liquid level in real time, outputting a low liquid level signal when the liquid level in the expansion tank is the low liquid level, detecting whether the low liquid level signal disappears, if the low liquid level signal disappears for the first time, closing the filling water pump, and simultaneously detecting whether the current filling amount of the cooling liquid is matched with the calibrated filling amount, if so, completing filling, and if not, executing the step 2);
2) starting the vehicle-mounted water pump, controlling the vehicle-mounted water pump to exhaust, simultaneously detecting whether a low liquid level signal appears, if yes, circulating the step 1), if not, continuing to exhaust until the exhaust is completed, executing a program after the exhaust is completed, wherein the program after the exhaust is specifically: and closing the vehicle-mounted water pump, simultaneously detecting whether the current filling amount of the cooling liquid is matched with the calibration filling amount, if so, completing filling, otherwise, operating the filling water pump until the current filling amount of the cooling liquid is detected to be matched with the calibration filling amount, and completing filling.
2. The method for filling the coolant in the fuel cell vehicle according to claim 1, wherein the specific control process of the vehicle-mounted water pump in the step 2) of exhausting is as follows:
a) the vehicle-mounted water pump runs at an initial rotating speed to exhaust, meanwhile, the disappearance time of the low liquid level signal is detected, when no low liquid level signal appears and the disappearance time continuously exceeds a preset second time, whether the current rotating speed of the vehicle-mounted water pump is the maximum rotating speed value or not is detected, if yes, the step b) is carried out, and if not, the step c) is carried out; when a low liquid level signal appears, the step 1) is circulated; wherein the second time is greater than the first time;
b) the vehicle-mounted water pump continuously operates at the maximum rotating speed value, and if a low liquid level signal appears, the step 1) is circulated; if the low liquid level signal does not appear and the continuous non-appearing time exceeds a preset third time, finishing the exhaust and executing the exhaust finishing program;
c) increasing the rotating speed of the vehicle-mounted water pump, increasing the rotating speed of the vehicle-mounted water pump once every fourth time, detecting whether a low liquid level signal appears in the fourth time process of the operation of the vehicle-mounted water pump after the preset rotating speed value is increased every time, and if not, continuously increasing until the current rotating speed of the vehicle-mounted water pump is the maximum rotating speed value, and entering the step b); if so, looping said step 1).
3. The method of filling a coolant in a fuel cell vehicle according to claim 2, characterized in that: in the step c), the preset rotating speed value of the vehicle-mounted water pump increased every time is 1000 rpm.
4. The method of filling a coolant in a fuel cell vehicle according to claim 1, characterized in that: in the step 2), before the vehicle-mounted water pump is closed, detecting whether the water pressure of the fuel cell vehicle is matched with a preset water pressure calibration value, if so, finishing air exhaust and closing the vehicle-mounted water pump; if not, the vehicle-mounted water pump is continuously operated.
5. The method of filling a coolant in a fuel cell vehicle according to claim 1, characterized in that: before the step 1), selecting the vehicle type of the currently-filled fuel cell vehicle in the filling system, and calling the calibrated filling amount corresponding to the vehicle type of the currently-filled fuel cell vehicle.
6. The method of filling a coolant in a fuel cell vehicle according to claim 1, characterized in that: the matching of the current filling amount of the cooling liquid and the calibration filling amount specifically refers to: and the difference value between the current filling amount and the calibrated filling amount of the cooling liquid is smaller than a rated difference value, and the rated difference value is 100 ml.
7. A filling device of coolant in a fuel cell vehicle is characterized in that: the device for filling the coolant in the fuel cell vehicle is used for realizing the method for filling the coolant in the fuel cell vehicle as claimed in any one of claims 1 to 6, and comprises the following steps: the main pipeline is connected with the cooling liquid tank and used for conveying cooling liquid, and the filling water pump is arranged on the main pipeline;
the flowmeter is arranged on the main pipeline and is used for detecting the conveying amount of the cooling liquid;
the liquid level sensor is arranged in the expansion tank and used for detecting the liquid level of the cooling liquid in the expansion tank;
and the filling water pump and the flowmeter are connected with the filling controller, the filling controller is in signal connection with the vehicle-mounted controller, and the liquid level sensor and the vehicle-mounted water pump are connected with the vehicle-mounted controller.
8. The apparatus for filling a coolant in a fuel cell vehicle according to claim 7, wherein: and the main pipeline is provided with an electromagnetic valve for controlling the on-off of the main pipeline, and the electromagnetic valve is connected with the filling controller.
9. The apparatus for filling a coolant in a fuel cell vehicle according to claim 7, wherein: the main pipeline is connected with a cooling liquid injection pipe of the fuel cell vehicle, and a one-way valve is arranged on the cooling liquid injection pipe.
10. The apparatus for filling a coolant in a fuel cell vehicle according to claim 7, wherein: the device for filling the cooling liquid in the fuel cell vehicle further comprises a display control panel connected with the filling controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911071720.6A CN112758882B (en) | 2019-11-05 | 2019-11-05 | Method and device for filling coolant in fuel cell vehicle |
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| CN201911071720.6A CN112758882B (en) | 2019-11-05 | 2019-11-05 | Method and device for filling coolant in fuel cell vehicle |
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| CN112758882A CN112758882A (en) | 2021-05-07 |
| CN112758882B true CN112758882B (en) | 2022-07-12 |
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| CN113555583B (en) * | 2021-06-30 | 2022-11-01 | 东风汽车集团股份有限公司 | Exhaust method and exhaust device for fuel cell automobile cooling system |
| CN114162773B (en) * | 2021-11-25 | 2024-03-15 | 上汽通用五菱汽车股份有限公司 | Plug-in type mixed motor vehicle type low-temperature loop cooling liquid filling quality control method |
| CN114300708B (en) * | 2021-12-29 | 2024-03-26 | 潍柴动力股份有限公司 | Automatic water-adding and air-exhausting method for fuel cell cooling liquid |
| CN114628741B (en) * | 2022-03-15 | 2023-10-13 | 山东国创燃料电池技术创新中心有限公司 | Water-adding and air-exhausting test method and test device for fuel cell engine |
| CN115092872A (en) * | 2022-06-24 | 2022-09-23 | 三一电动车科技有限公司 | Off-line detection cooling liquid filling device and method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761381A (en) * | 2010-03-01 | 2010-06-30 | 北汽福田汽车股份有限公司 | Engine cooling system and auxiliary water tank for same |
| CN201650418U (en) * | 2009-09-30 | 2010-11-24 | 中国第一汽车集团公司 | Urea liquid supplying and ejecting system |
| CN202832764U (en) * | 2012-10-23 | 2013-03-27 | 湖南南车时代电动汽车股份有限公司 | Engine cooling system degassing device |
| CN203704425U (en) * | 2011-07-12 | 2014-07-09 | 爱信精机株式会社 | Vehicle-mounted absorptive heat pump apparatus |
| CN104591070A (en) * | 2014-12-25 | 2015-05-06 | 北京新能源汽车股份有限公司 | Vehicle oil filling device and method |
| CN104703444A (en) * | 2015-03-19 | 2015-06-10 | 合肥天鹅制冷科技有限公司 | Pressure-stabilizing, liquid-supplementing and gas-exhausting device of closed liquid cooling system |
| CN105914423A (en) * | 2015-10-09 | 2016-08-31 | 北京长城华冠汽车科技股份有限公司 | Electrical vehicle energy storage system heat management loop charging system and method |
| CN107389352A (en) * | 2017-08-03 | 2017-11-24 | 奇瑞汽车股份有限公司 | The stable equipment of engine pedestal cooling recirculation system and control method |
| CN208140618U (en) * | 2018-03-20 | 2018-11-23 | 爱驰汽车有限公司 | Battery pack Performance Test System and the cold and hot Dynamic Simulation system of on-vehicle battery |
| CN208166562U (en) * | 2018-05-02 | 2018-11-30 | 株洲中车时代电气股份有限公司 | A kind of pressure maintaining liquid filling integrated apparatus |
| CN109244505A (en) * | 2018-09-25 | 2019-01-18 | 吉林大学 | A kind of vehicle fuel battery heat management system and its control method |
| CN109249789A (en) * | 2018-09-21 | 2019-01-22 | 科力远混合动力技术有限公司 | Mixed powered vehicle power battery thermal management system and method |
-
2019
- 2019-11-05 CN CN201911071720.6A patent/CN112758882B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201650418U (en) * | 2009-09-30 | 2010-11-24 | 中国第一汽车集团公司 | Urea liquid supplying and ejecting system |
| CN101761381A (en) * | 2010-03-01 | 2010-06-30 | 北汽福田汽车股份有限公司 | Engine cooling system and auxiliary water tank for same |
| CN203704425U (en) * | 2011-07-12 | 2014-07-09 | 爱信精机株式会社 | Vehicle-mounted absorptive heat pump apparatus |
| CN202832764U (en) * | 2012-10-23 | 2013-03-27 | 湖南南车时代电动汽车股份有限公司 | Engine cooling system degassing device |
| CN104591070A (en) * | 2014-12-25 | 2015-05-06 | 北京新能源汽车股份有限公司 | Vehicle oil filling device and method |
| CN104703444A (en) * | 2015-03-19 | 2015-06-10 | 合肥天鹅制冷科技有限公司 | Pressure-stabilizing, liquid-supplementing and gas-exhausting device of closed liquid cooling system |
| CN105914423A (en) * | 2015-10-09 | 2016-08-31 | 北京长城华冠汽车科技股份有限公司 | Electrical vehicle energy storage system heat management loop charging system and method |
| CN107389352A (en) * | 2017-08-03 | 2017-11-24 | 奇瑞汽车股份有限公司 | The stable equipment of engine pedestal cooling recirculation system and control method |
| CN208140618U (en) * | 2018-03-20 | 2018-11-23 | 爱驰汽车有限公司 | Battery pack Performance Test System and the cold and hot Dynamic Simulation system of on-vehicle battery |
| CN208166562U (en) * | 2018-05-02 | 2018-11-30 | 株洲中车时代电气股份有限公司 | A kind of pressure maintaining liquid filling integrated apparatus |
| CN109249789A (en) * | 2018-09-21 | 2019-01-22 | 科力远混合动力技术有限公司 | Mixed powered vehicle power battery thermal management system and method |
| CN109244505A (en) * | 2018-09-25 | 2019-01-18 | 吉林大学 | A kind of vehicle fuel battery heat management system and its control method |
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