CN117048339A - High-voltage power distribution system power-on method of fuel cell counter-balanced forklift - Google Patents
High-voltage power distribution system power-on method of fuel cell counter-balanced forklift Download PDFInfo
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- CN117048339A CN117048339A CN202311324160.7A CN202311324160A CN117048339A CN 117048339 A CN117048339 A CN 117048339A CN 202311324160 A CN202311324160 A CN 202311324160A CN 117048339 A CN117048339 A CN 117048339A
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- 239000000446 fuel Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 21
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000001257 hydrogen Substances 0.000 claims abstract description 34
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 34
- 238000012790 confirmation Methods 0.000 claims abstract description 31
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 230000002159 abnormal effect Effects 0.000 claims description 18
- 238000007689 inspection Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000004880 explosion Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
-
- 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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0053—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
-
- 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
- B60L2200/00—Type of vehicles
- B60L2200/40—Working vehicles
- B60L2200/42—Fork lift trucks
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Sustainable Development (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a power-on method of a high-voltage power distribution system of a fuel cell counter-balanced forklift, which comprises a vehicle-mounted controller, an equipment informatization unit and terminal equipment, and has a self-checking function before power-on, which is suitable for the fuel cell counter-balanced forklift. The invention has the advantages that: the detection of insulation resistance, high-voltage interlocking, battery state, hydrogen system state and other equipment states can be finished through the self-detection of the whole vehicle controller, manual spot detection confirmation can be realized by matching with a mobile phone or other external terminals provided with APP, the state detection of each equipment is finished, the state of each equipment is ensured to be in a normal operation state before the power-on of the balancing weight forklift, the faults of the equipment during and after the power-on are avoided, and the running stability of the high-voltage power distribution system of the fuel cell balancing weight forklift is effectively improved.
Description
Technical Field
The invention relates to a high-voltage power distribution system power-on method, in particular to a high-voltage power distribution system power-on method of a fuel cell counter-balanced forklift.
Background
Along with the increasing importance of clean, environment-friendly, energy-saving and efficient new energy, the fuel cell has become one of the important development directions of new energy vehicles because of the advantages of zero pollution, low noise, high efficiency, rich fuel content and the like. The fuel cell automobile mainly takes hydrogen as fuel and takes electrochemical reaction of combining hydrogen and oxygen as a power source, and compared with the traditional automobile, the fuel cell automobile has no pollution in emission; compared with a pure electric vehicle, the fuel loading time is short, and the driving range is long.
In order to better solve the safety problem of the high-voltage system of the hydrogen fuel cell automobile, especially the high-voltage safety problem of the hydrogen fuel cell pure electric automobile, the country provides more detailed hardware design and test rules for the hydrogen fuel cell pure electric automobile, especially the high-voltage safety system, can prevent the injury to the personnel contacting the electric automobile in the case of serious electric leakage and the like, protect the personnel safety of the driving and riding personnel of the electric automobile and prevent accidents, so the hydrogen fuel cell pure electric automobile has higher requirements in the aspect of overall automobile safety system management.
As in chinese patent CN201710369605.1, a fuel cell vehicle power on/off control method, a vehicle controller and a vehicle are disclosed, wherein the fuel cell vehicle power on/off control method comprises: acquiring a power-on instruction or a power-off instruction; the power-on system of the fuel cell automobile is controlled to be powered on according to the power-on instruction or the power-off system of the fuel cell automobile is controlled to be powered off according to the power-off instruction, so that the working efficiency of the APU (power management system) is built after the power-on of the whole automobile is finished, the risk of high-voltage discharge caused by mismatching of the power-off time sequence of the whole automobile and the power-off time sequence of the APU is eliminated, and the safety of the high-voltage system is improved.
As another chinese patent CN202110734781.7, a method for powering up a hybrid Fuel Cell vehicle based on full power electricity is disclosed, which includes powering up a low voltage control unit and powering up a high voltage accessory for the whole vehicle after detecting a power-up command for the whole vehicle, and powering up a low voltage control unit and powering up a high voltage accessory for a Fuel Cell System FCS (Fuel Cell System) before detecting a Start signal, so as to complete powering up of the high voltage accessory for the whole vehicle and the Fuel Cell System FCS (lower schematic), optimize power-up logic, fully consider working modes and characteristics of the full power Fuel Cell System and the power Cell System, reasonably optimize power-up timing, and complete pre-charging and high-voltage powering up of the high voltage accessory for the whole vehicle and the high voltage accessory for the Fuel Cell System before a Start button is pressed by a driver, thereby saving time for high voltage.
The fork truck is a special vehicle with lifting fork in front and balancing weight in tail, and is widely used in loading, unloading, stacking and transporting articles in port, station and enterprise, and may be used in cabin, train carriage and container for transporting various kinds of articles, such as bucket. Therefore, the fuel cell counter-balanced forklift has great market prospect due to the characteristics of cleanness, environmental protection, energy conservation, high efficiency and the like.
However, because the structure and the function of the balanced fork truck are different from those of a common automobile, the high-voltage power distribution system power-on method of the two patents is lack of self-detection before power-on, which is suitable for the balanced fork truck of the fuel cell, and further causes abnormal equipment state during the power-on process and the equipment operation, so that the operation is failed, and the operation stability of the balanced fork truck is reduced.
Disclosure of Invention
The invention aims to provide a high-voltage power distribution system power-on method of a fuel cell counter-balanced forklift, which has a self-checking function before power-on, and is suitable for the fuel cell counter-balanced forklift.
In order to achieve the above object, the present invention provides a method for powering up a high voltage power distribution system of a fuel cell counter-balanced forklift, wherein the method comprises a vehicle-mounted controller, an equipment informatization unit and terminal equipment, and further comprises the following steps:
s1, a vehicle-mounted controller receives a key starting signal from a vehicle and/or user login information and a power-on confirmation instruction from terminal equipment;
s2, the vehicle-mounted controller controls the equipment informatization unit to carry out equipment self-inspection according to a key start signal or a power-on confirmation instruction;
s3, the equipment informatization unit judges information of the emergency stop switch, the insulation resistor, the high-voltage interlocking loop, the battery and the hydrogen supply equipment, and returns a self-checking completion signal of normal or abnormal equipment according to a judging result;
s4, the vehicle-mounted controller receives an equipment self-checking completion signal returned by the equipment informatization unit, if the equipment self-checking completion signal is normal, the high-voltage power distribution system is controlled to be electrified, and if the equipment self-checking completion signal is abnormal, the high-voltage power distribution system is controlled to be powered off and alarm is given;
and S5, the vehicle-mounted controller receives a battery pre-charging signal returned by the equipment informatization unit, if the battery pre-charging signal is normal, the power-on is completed, and if the battery pre-charging signal is abnormal, the power-on is alarmed.
On the basis of the scheme, the step S3 comprises the following steps:
s31, judging whether the scram switch is turned off;
s32, judging whether the insulation resistance is larger than 500 omega/V;
s33, judging whether the high-voltage interlocking loop is in an interlocking state or not;
s34, judging whether the temperature and the voltage of the battery do not exceed the normal range;
s35, judging whether the temperature, pressure and hydrogen concentration of the hydrogen in the hydrogen supply equipment do not exceed the normal range;
s36, judging whether other internal devices are normal or not;
s37, according to the judging results of the steps S31 to S36, if all judging results are yes, the equipment informatization unit returns a normal equipment self-checking completion signal, and if at least one judging result is no or at least one judging result is lack, the equipment informatization unit returns an abnormal equipment self-checking completion signal.
On the basis of the above scheme, the step S35 includes the following steps:
s351, judging whether the hydrogen leakage is lower than 25% LEL (Lower Explosion Limited explosion lower limit, abbreviated below);
s352, judging whether the temperature of the hydrogen is lower than 125 ℃;
s353, judging whether the hydrogen pressure is lower than 45MPa;
s354, according to the determination results of steps S351 to S353, if all the determination results are yes, the determination result is output yes, and if at least one of the determination results is no or at least one determination result is absent, the determination result is output no and the hydrogen valve alarm is turned off.
On the basis of the above scheme, the other internal devices described in step S36 are internal sensors, actuators and pipeline seals thereof.
On the basis of the scheme, the step S1 comprises the following steps:
s11, starting a key;
s12, the vehicle-mounted controller receives a key start signal;
s13, receiving user login information of the terminal equipment by the vehicle-mounted controller;
s14, the terminal equipment receives the spot check confirmation results of the manual input emergency stop switch, the insulation resistor, the high-voltage interlocking loop, the battery, the hydrogen supply equipment and other external equipment, and if all the spot check confirmation results are normal, the terminal equipment sends out a power-on confirmation instruction;
s15, the vehicle-mounted controller receives a power-on confirmation instruction from the terminal equipment.
On the basis of the scheme, the step S1 further comprises the following steps:
s16, the terminal equipment receives the spot check confirmation results of the manual input emergency stop switch, the insulation resistor, the high-voltage interlocking loop, the battery, the hydrogen supply equipment and other external equipment, and if at least one spot check confirmation result is abnormal or at least one spot check confirmation result is absent, the equipment informatization unit returns to be abnormal, the step S14 is circularly executed until all spot check confirmation results are normal or the user exits.
On the basis of the scheme, other external devices in the step S14 and the step S16 are a lifting motor, a walking motor, an oil pump and a controller of the devices.
The invention has the advantages that: the detection of insulation resistance, high-voltage interlocking, battery state, hydrogen system state and other equipment states can be finished through the self-detection of the whole vehicle controller, manual spot detection confirmation can be realized by matching with a mobile phone or other external terminals provided with APP, the state detection of each equipment is finished, the state of each equipment is ensured to be in a normal operation state before the power-on of the balancing weight forklift, the faults of the equipment during and after the power-on are avoided, and the running stability of the high-voltage power distribution system of the fuel cell balancing weight forklift is effectively improved.
Drawings
FIG. 1 is a schematic diagram of the logic of the present invention.
Detailed description of the preferred embodiments
Other advantages and technical effects of the present invention will become more fully apparent to those skilled in the art from the following disclosure, which is a detailed description of the present invention given by way of specific examples. The invention may be practiced or carried out in different embodiments, and details in this description may be applied from different points of view, without departing from the general inventive concept. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. In the following embodiments, any negative judgment result (such as detection fail, inspection fail, verification fail, request rejection, unsuccessful power-up, etc.) is obtained, which causes power-up failure.
As shown in fig. 1, the invention provides a method for powering up a high-voltage power distribution system of a fuel cell counter-balanced forklift, which comprises a vehicle-mounted controller, an equipment informatization unit and terminal equipment, and further comprises the following steps:
s11, starting a key;
s12, the vehicle-mounted controller receives a key start signal;
s13, receiving user login information of the terminal equipment by the vehicle-mounted controller;
s14, the terminal equipment receives the spot check confirmation results of the manual input emergency stop switch, the insulation resistor, the high-voltage interlocking loop, the battery, the hydrogen supply equipment, the lifting motor, the walking motor, the oil pump and the controllers of the equipment, and if all the spot check confirmation results are normal, the terminal equipment sends out a power-on confirmation instruction;
s15, the vehicle-mounted controller receives a power-on confirmation instruction from the terminal equipment;
s16, the terminal equipment receives spot check confirmation results of a manual input emergency stop switch, an insulation resistor, a high-voltage interlocking loop, a battery, hydrogen supply equipment and other external equipment, if at least one spot check confirmation result is abnormal or at least one spot check confirmation result is absent, the equipment informatization unit returns to be abnormal, and the step S14 is circularly executed until all spot check confirmation results are normal or the user exits;
s2, the vehicle-mounted controller controls the equipment informatization unit to carry out equipment self-inspection according to a key start signal or a power-on confirmation instruction;
s31: judging whether the emergency stop switch is turned off or not;
s32: judging whether the insulation resistance is more than 500 omega/V;
s33: judging whether the high-voltage interlocking loop is in an interlocking state or not;
s34: judging whether the temperature and the voltage of the battery do not exceed the normal range;
s351, judging whether the hydrogen leakage is lower than 25% LEL;
s352, judging whether the temperature of the hydrogen is lower than 125 ℃;
s353, judging whether the hydrogen pressure is lower than 45MPa;
s354, according to the judging results of the steps S351 to S353, outputting judging results of yes if all judging results of yes, outputting judging results of no if at least one judging result of no or lack of at least one judging result and cutting off the hydrogen valve alarm;
s36: judging whether the internal sensor, the actuator and the pipeline are normally sealed;
s37: according to the judging results of the steps S31 to S36, if all the judging results are yes, the equipment informatization unit returns a normal equipment self-checking completion signal, and if at least one judging result is no or at least one judging result is lack, the equipment informatization unit returns an abnormal equipment self-checking completion signal;
s4, the vehicle-mounted controller receives an equipment self-checking completion signal returned by the equipment informatization unit, if the equipment self-checking completion signal is normal, the high-voltage power distribution system is controlled to be electrified, and if the equipment self-checking completion signal is abnormal, the high-voltage power distribution system is controlled to be powered off and alarm is given;
and S5, the vehicle-mounted controller receives a battery pre-charging signal returned by the equipment informatization unit, if the battery pre-charging signal is normal, the power-on is completed, and if the battery pre-charging signal is abnormal, the power-on is alarmed.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the technical solutions according to the embodiments of the present invention.
Claims (7)
1. The power-on method of the high-voltage power distribution system of the fuel cell counter-balanced forklift is characterized by comprising a vehicle-mounted controller, an equipment informatization unit and terminal equipment, and further comprising the following steps:
s1, a vehicle-mounted controller receives a key starting signal from a vehicle and/or user login information and a power-on confirmation instruction from terminal equipment;
s2, the vehicle-mounted controller controls the equipment informatization unit to carry out equipment self-inspection according to a key start signal or a power-on confirmation instruction;
s3, the equipment informatization unit judges information of the emergency stop switch, the insulation resistor, the high-voltage interlocking loop, the battery and the hydrogen supply equipment, and returns a self-checking completion signal of normal or abnormal equipment according to a judging result;
s4, the vehicle-mounted controller receives an equipment self-checking completion signal returned by the equipment informatization unit, if the equipment self-checking completion signal is normal, the high-voltage power distribution system is controlled to be electrified, and if the equipment self-checking completion signal is abnormal, the high-voltage power distribution system is controlled to be powered off and alarm is given;
and S5, the vehicle-mounted controller receives a battery pre-charging signal returned by the equipment informatization unit, if the battery pre-charging signal is normal, the power-on is completed, and if the battery pre-charging signal is abnormal, the power-on is alarmed.
2. The method for powering up a high voltage power distribution system of a fuel cell balanced forklift according to claim 1, wherein said step S3 comprises the steps of:
s31, judging whether the scram switch is turned off;
s32, judging whether the insulation resistance is larger than 500 omega/V;
s33, judging whether the high-voltage interlocking loop is in an interlocking state or not;
s34, judging whether the temperature and the voltage of the battery do not exceed the normal range;
s35, judging whether the temperature, pressure and hydrogen concentration of the hydrogen in the hydrogen supply equipment do not exceed the normal range;
s36, judging whether other internal devices are normal or not;
s37, according to the judging results of the steps S31 to S36, if all judging results are yes, the equipment informatization unit returns a normal equipment self-checking completion signal, and if at least one judging result is no or at least one judging result is lack, the equipment informatization unit returns an abnormal equipment self-checking completion signal.
3. The method for powering up a high voltage power distribution system of a fuel cell balanced forklift according to claim 2, wherein said step S35 comprises the steps of:
s351, judging whether the hydrogen leakage is lower than 25% LEL;
s352, judging whether the temperature of the hydrogen is lower than 125 ℃;
s353, judging whether the hydrogen pressure is lower than 45MPa;
s354, according to the determination results of steps S351 to S353, if all the determination results are yes, the determination result is output yes, and if at least one of the determination results is no or at least one determination result is absent, the determination result is output no and the hydrogen valve alarm is turned off.
4. The method for powering up a high voltage power distribution system of a fuel cell balanced forklift as claimed in claim 2, wherein: other internal devices described in step S36 are internal sensors, actuators and tubing seals.
5. The method for powering up a high voltage power distribution system of a fuel cell balanced forklift according to claim 1, wherein said step S1 comprises the steps of:
s11, starting a key;
s12, the vehicle-mounted controller receives a key start signal;
s13, receiving user login information of the terminal equipment by the vehicle-mounted controller;
s14, the terminal equipment receives the spot check confirmation results of the manual input emergency stop switch, the insulation resistor, the high-voltage interlocking loop, the battery, the hydrogen supply equipment and other external equipment, and if all the spot check confirmation results are normal, the terminal equipment sends out a power-on confirmation instruction;
s15, the vehicle-mounted controller receives a power-on confirmation instruction from the terminal equipment.
6. The method for powering up a high voltage power distribution system of a fuel cell balanced forklift according to claim 5, wherein said step S1 further comprises the steps of:
s16, the terminal equipment receives the spot check confirmation results of the manual input emergency stop switch, the insulation resistor, the high-voltage interlocking loop, the battery, the hydrogen supply equipment and other external equipment, and if at least one spot check confirmation result is abnormal or at least one spot check confirmation result is absent, the equipment informatization unit returns to be abnormal, the step S14 is circularly executed until all spot check confirmation results are normal or the user exits.
7. A method of powering up a high voltage power distribution system for a fuel cell counter-balanced forklift as claimed in claim 5 or 6, wherein: the other external devices in the step S14 and the step S16 are a lifting motor, a walking motor, an oil pump and a controller of the devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311324160.7A CN117048339A (en) | 2023-10-13 | 2023-10-13 | High-voltage power distribution system power-on method of fuel cell counter-balanced forklift |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311324160.7A CN117048339A (en) | 2023-10-13 | 2023-10-13 | High-voltage power distribution system power-on method of fuel cell counter-balanced forklift |
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| CN117048339A true CN117048339A (en) | 2023-11-14 |
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| CN202311324160.7A Pending CN117048339A (en) | 2023-10-13 | 2023-10-13 | High-voltage power distribution system power-on method of fuel cell counter-balanced forklift |
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| CN106541909A (en) * | 2016-12-08 | 2017-03-29 | 深圳市品川能源电气有限公司 | A kind of intelligent high-pressure distribution management device |
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