CN117184260A - port tractor - Google Patents
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- CN117184260A CN117184260A CN202311458819.8A CN202311458819A CN117184260A CN 117184260 A CN117184260 A CN 117184260A CN 202311458819 A CN202311458819 A CN 202311458819A CN 117184260 A CN117184260 A CN 117184260A
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- 239000000446 fuel Substances 0.000 claims abstract description 88
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 239000001257 hydrogen Substances 0.000 claims abstract description 76
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 76
- 239000007789 gas Substances 0.000 claims abstract description 61
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000001301 oxygen Substances 0.000 claims abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000005984 hydrogenation reaction Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000003763 carbonization Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Fuel Cell (AREA)
Abstract
The invention provides a port tractor, which comprises a cab assembly, a frame assembly, a driving motor assembly and a power assembly, and is characterized in that: the power assembly comprises a hydrogen fuel cell assembly and a power cell assembly, the port tractor further comprises a gas storage system and a gas inlet system, the gas storage system is used for providing hydrogen for the hydrogen fuel cell assembly, and the gas inlet system is used for providing oxygen for the hydrogen fuel cell assembly. The gas storage system comprises a first gas cylinder assembly and a second gas cylinder assembly, the first gas cylinder assembly is arranged above the frame assembly and is positioned behind the cab assembly, the second gas cylinder assembly is arranged on the side part of the frame assembly, and the upper surface of the first gas cylinder assembly is lower than the upper surface of the cab assembly by a preset size. According to the port tractor, the height of the first air bottle assembly can be properly reduced, so that a driver driving the port tractor of the invention has a good view.
Description
Technical Field
The present invention relates to a port tractor, and more particularly, to a hydrogen-fuelled port low-speed tractor which enables a driver to have a good field of view.
Background
Climate change is a major global challenge facing today's mankind, and the development direction of "low carbonization, informatization, intelligence" is receiving a great deal of attention from the governments, industry and scientific community. The hydrogen energy has the characteristics and advantages of various sources, capability of realizing large-scale stable storage, transportation, utilization, quick supplement and the like of renewable energy sources, and is an important guarantee for future clean energy transformation. However, in the field of port transportation, low-speed traction is mainly a fuel vehicle and a part of pure electric vehicles, and there is a great development space in realizing low carbonization by using hydrogen fuel cells. In addition, in view of the complex situation of the port, it is required that the driver of the port tractor not only has a good front view but also has a good rear view through the rear view mirror.
Disclosure of Invention
The invention aims to provide a port low-speed tractor powered by a hydrogen fuel cell, which can enable a driver to have a good visual field.
The port tractor comprises a cab assembly, a frame assembly, a driving motor assembly and a power assembly, and is characterized in that: the power assembly comprises a hydrogen fuel cell assembly and a power cell assembly, the hydrogen fuel cell assembly and the power cell assembly can both provide driving electric energy for the driving motor assembly, the hydrogen fuel cell assembly can also provide charging electric energy for the power cell assembly, the port tractor further comprises a gas storage system and a gas inlet system, the gas storage system is used for providing hydrogen for the hydrogen fuel cell assembly, the gas inlet system is used for providing oxygen for the hydrogen fuel cell assembly, the gas storage system comprises a first gas cylinder assembly and a second gas cylinder assembly, the first gas cylinder assembly is arranged above the frame assembly and is positioned behind the cab assembly, the second gas cylinder assembly is arranged on the side of the frame assembly, and the upper surface of the first gas cylinder assembly is lower than the upper surface of the cab assembly by a preset size.
According to the port tractor, the height of the first gas bottle assembly can be properly reduced on the premise of not influencing the total amount of hydrogen provided to the hydrogen fuel cell assembly, so that a driver driving the port tractor has a good visual field.
Preferably, the port tractor further comprises an all-in-one controller and a motor controller, wherein the fuel cell assembly and the power cell assembly are connected with the all-in-one controller so as to respectively transmit electric energy to the all-in-one controller, the all-in-one controller is connected with the motor controller, and the motor controller is connected with the driving motor assembly.
Preferably, the hydrogen fuel cell assembly is equipped with a DC/DC converter; the port tractor is provided with a pure hydrogen working mode, in the pure hydrogen working mode, electric energy generated in the hydrogen fuel cell assembly is integrated through the DC/DC converter and then is supplied to the all-in-one controller, the all-in-one controller distributes at least part of electric energy to the motor controller, the motor controller transmits the electric energy to the driving motor assembly, and the driving motor assembly converts the electric energy into mechanical energy, so that power required by the port tractor is provided.
Preferably, the port tractor further comprises a battery energy distribution unit connected between the power battery assembly and the all-in-one controller; the port tractor is provided with a pure electric mode, in the pure electric mode, electric energy stored in the power battery assembly is transmitted to the all-in-one controller through the battery energy distribution unit, the all-in-one controller distributes partial electric energy to the motor controller through distribution, the motor controller transmits the electric energy to the driving motor assembly, and the driving motor assembly converts the electric energy into mechanical energy, so that power required by the port tractor is provided.
Preferably, the drive motor assembly is provided with an engine mode; when the port tractor brakes or decelerates, the driving motor assembly rotates reversely to act as a generator, and the electric energy generated by the driving motor assembly reversely charges the power battery assembly through the all-in-one controller and the battery energy distribution unit.
Preferably, when the power required by the port tractor is greater than the power provided by the hydrogen fuel cell assembly, the power assembly provides power in a hybrid power mode, the power being provided by both the hydrogen fuel cell assembly and the power cell assembly; when the power required by the port tractor is smaller than the power provided by the fuel cell assembly, and when the residual electric quantity of the power cell assembly is lower than a preset threshold value, a part of the electric quantity generated by the fuel cell assembly charges the power cell assembly; the fuel cell assembly is powered down when the power demanded by the port tractor is less than the power provided by the fuel cell assembly and when the remaining electrical power of the power cell assembly is above a preset threshold.
Preferably, the port tractor further comprises an air conditioner compressor and an electric steering pump assembly; the all-in-one controller also provides electrical power to the air conditioner compressor and the electric steering pump assembly.
Preferably, the air inlet system assembly comprises a high-level air inlet channel and a hydrogen fuel cell air filter, and the high-level air inlet channel and the hydrogen fuel cell air filter sequentially filter air to provide clean air for the hydrogen fuel cell assembly.
Preferably, the port tractor further comprises an electric air compressor and an air reservoir; and part of air entering through the high-order air inlet channel is supplied to the electric air compressor, clean air filtered by an air filter of the electric air compressor is compressed and supplied to the air storage cylinder so as to provide an air source for braking the whole vehicle, and electric energy required by the electric air compressor is supplied by the all-in-one controller.
Preferably, the port tractor further comprises a buck converter and a hydrogen fuel cell radiator; and part of the electric energy generated by the hydrogen fuel cell assembly is provided for the buck converter, the buck converter converts the high-voltage power generated by the fuel cell assembly into a low-voltage power of 24V, and the electric energy after the buck conversion is respectively provided for a plurality of electronic fans on a radiator of the hydrogen fuel cell through a junction box so as to radiate heat generated in the chemical reaction process of the hydrogen fuel cell assembly.
Preferably, the port tractor is provided with a first front boarding ladder, a second front boarding ladder and a rear boarding ladder; the first front boarding ladder and the second front boarding ladder are respectively positioned at the left side and the right side of the cab and used for an operator to enter the cab; the rear upper ladder is positioned at the middle rear part of the right side of the frame and is used for an operator to step on the upper walking board of the frame; wherein, the rear boarding ladder is located at the rear side of the first gas cylinder assembly and at the front side of the second gas cylinder assembly.
According to the port tractor, three boarding modes are provided, so that the convenience for a driver or an operator to mount and dismount the tractor can be further improved.
Preferably, the power battery assembly is provided with a side charging port for connecting an external power supply for charging; the gas storage system has a side hydrogenation port.
Preferably, the driving motor assembly comprises a central motor, and the central motor is connected with the transmission shaft in a direct-drive mode to transmit mechanical energy to the rear wheel assembly.
According to the port tractor, the direct-drive motor is adopted, so that a gearbox can be omitted, and fault points are reduced.
According to the port tractor disclosed by the invention, the carbon emission of the port low-speed tractor can be reduced, and the low carbonization in the port transportation field is improved.
Drawings
Features, advantages, and technical and industrial significance of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, in which like reference numerals denote like elements.
Fig. 1 is a schematic diagram of the power mode of the port tractor of the present invention.
Fig. 2 is a left side perspective view of the port tractor of the present invention.
Fig. 3 is a right side perspective view of the port tractor of the present invention.
Fig. 4 is a schematic diagram of the chassis of the port tractor of the present invention.
Fig. 5 is a schematic view of a partial chassis of the steering system of the port tractor of the present invention.
Fig. 6 is a schematic view of a partial chassis of the air intake system of the port tractor of the present invention.
Fig. 7 is a schematic view of a partial chassis of the power distribution system of the port tractor of the present invention.
Fig. 8 is a schematic view of a partial chassis of the cooling system of the port tractor of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the embodiments described below, when the number, amount, range, and the like of the elements are mentioned, the present invention is not limited to the mentioned numbers except for the case where the number is specifically and clearly defined in principle. The configuration described in the embodiment shown below is not essential to the present invention, except for the case where it is specifically shown and the case where it is limited to this configuration in principle.
Fig. 1 is a schematic diagram of the power mode of the port tractor of the present invention. Fig. 2 is a left side perspective view of the port tractor of the present invention. Fig. 3 is a right side perspective view of the port tractor of the present invention. Fig. 4 is a schematic diagram of the chassis of the port tractor of the present invention. Fig. 5 is a schematic view of a partial chassis of the steering system of the port tractor of the present invention. Fig. 6 is a schematic view of a partial chassis of the air intake system of the port tractor of the present invention. Fig. 7 is a schematic view of a partial chassis of the power distribution system of the port tractor of the present invention. Fig. 8 is a schematic view of a partial chassis of the cooling system of the port tractor of the present invention.
Referring to fig. 2 to 8, the port tractor of the present invention mainly includes: the vehicle comprises a cab assembly 1, a rear gas cylinder assembly 2, a traction seat 3, a frame assembly 4, a rear shaft assembly 5, a power battery assembly 6, a motor radiator assembly 7, a front axle assembly 8, a side gas cylinder assembly 9, a frame upper deck plate 10, a hydrogen fuel battery radiator 11, an air conditioner compressor 12, a hydrogen fuel battery assembly 13, an air inlet system assembly 14, an electric control system assembly 15, a driving motor assembly 16, a gas storage cylinder 17, a storage battery 18, a transmission shaft 19, an electric steering pump assembly 20, a steering pump bracket 21, a steering oil tank 22, a high-order air inlet channel 23, a hydrogen fuel battery air filter 24, an electric air compressor 25, an electric air compressor air filter 26, an all-in-one controller 27, a motor controller 28, a BDU29, a junction box 30, a fuel battery DCL31, a battery water cooling unit 32 and other parts.
Next, with reference to fig. 2 to 8, the arrangement of the above-described components on the vehicle in the port tractor of the present invention will be briefly described.
The cab assembly 1 is mounted on the frame assembly 4 to provide a comfortable driving operation environment for a driver. The hydrogen fuel cell radiator 11, the hydrogen fuel cell assembly 13, the driving motor assembly 16, the hydrogen fuel cell air filter 24, the all-in-one controller 27, the motor controller 28, the BDU29, and the like are all installed inside the frame assembly 4. The rear gas cylinder assembly 2 is arranged at the rear side of the cab assembly 1 and the upper side of the frame assembly 4, the side gas cylinder assembly 9 is arranged at the right side of the frame assembly 4, and the power battery assembly 6 and the motor radiator 7 are arranged at the left side of the frame assembly 4. The traction seat 3 is used for connecting a trailer, the storage battery 18 is positioned in the right side frame of the whole vehicle, and the upper part of the traction seat is free from shielding, so that the traction seat is convenient to maintain.
Next, the basic structure of the port tractor of the present invention will be described with reference to fig. 2, 3 and 4.
As shown in fig. 2, 3 and 4, the basic structure of the port tractor of the present invention includes a cab assembly 1, a frame assembly 4, a driving motor assembly 16 and a power assembly.
Wherein the power assembly comprises a hydrogen fuel cell assembly 13 and a power cell assembly 6. That is, the power mode of the present invention is an electro-electric hybrid power form of a hydrogen fuel cell and a power cell.
In order for the hydrogen fuel cell assembly 13, which is one of the power sources, to function properly, the present invention also includes the post gas cylinder assembly 2, the side gas cylinder assembly 9, and the intake system assembly 14.
As shown in fig. 2, the rear gas cylinder assembly 2 is mounted on the frame assembly 4 at the rear side of the cab assembly 1, and the upper surface of the rear gas cylinder assembly 2 is lower than the upper surface of the cab assembly 1 by a predetermined size so as not to obstruct the view of the driver. As shown in fig. 3, the side cylinder assembly 9 is mounted on the right side of the frame assembly 4. The post gas cylinder assembly 2 and the side gas cylinder assembly 9 supply hydrogen gas to the hydrogen fuel cell assembly 13. In the existing hydrogen fuel vehicle type, the hydrogen fuel gas cylinders are basically a single gas cylinder group, namely a back gas cylinder group, and one group of gas cylinders comprises 8 gas cylinders or 10 gas cylinders. There is also a single side cylinder. In contrast, the invention adopts the scheme of combining the rear gas cylinder assembly 2 with the side gas cylinder assembly 9. Through set up the gas cylinder assembly at two positions, can guarantee that the gas cylinder total volume is under 1110L (gas cylinder working pressure 35 Mpa) the prerequisite, effectively reduce the height of rear-mounted gas cylinder to can not hinder the sight that the driver passes through the rear-view mirror, improve driver's rear view, improve port tractor's operation security.
As shown in fig. 7, the port tractor of the present invention further includes an all-in-one controller 27 and a motor controller 28. In addition, as shown in fig. 1, the hydrogen fuel cell assembly 13 and the power cell assembly 6 are each connected to the all-in-one controller 27 to transmit electric power to the all-in-one controller 27, respectively. The all-in-one controller 27 is connected to a motor controller 28, and the motor controller 28 is connected to the drive motor assembly 16.
As shown in fig. 6, the intake system assembly 14 includes a high-order intake duct 23 and a hydrogen fuel cell air filter 24. The high-order air intake duct 23 is effective in preventing the entry of dust particles, and the hydrogen fuel cell air filter 24 further filters the air to provide clean air to the hydrogen fuel cell assembly 13. That is, the intake system assembly 14 supplies oxygen to the hydrogen fuel cell assembly 13.
The hydrogen and oxygen chemically react within the hydrogen fuel cell assembly 13 to produce electrical energy. As shown in fig. 1, the electric energy generated in the hydrogen fuel cell assembly 13 is integrated by a DC/DC converter provided in the hydrogen fuel cell assembly 13 and is supplied to the all-in-one controller 27, the all-in-one controller 27 distributes part of the electric energy to the motor controller 28 through distribution, the motor controller 28 transmits the electric energy to the driving motor assembly 16, the driving motor assembly 16 converts the electric energy into mechanical energy, and the mechanical energy is input to the rear axle assembly 5 through the transmission shaft assembly 19 to provide power required by the vehicle. The above-described operation mode is referred to as a pure hydrogen operation mode. It should be noted that, the rear gas cylinder assembly 2 and the side gas cylinder assembly 9 may perform hydrogenation through the hydrogenation port 37 on the right side of the whole vehicle.
As a second power source of the power assembly of the present invention, the power battery assembly 6 operates as follows: the electric energy in the power battery assembly 6 is transmitted to the all-in-one controller 27 through a BDU (battery energy distribution unit) 29, the all-in-one controller 27 distributes part of the electric energy to the motor controller 28 through distribution, the motor controller 28 transmits the electric energy to the driving motor assembly 16, the driving motor assembly 16 converts the electric energy into mechanical energy, and the mechanical energy is input to the rear axle assembly 5 through the transmission shaft assembly 19 to provide power required by the vehicle. This mode of operation is referred to as the pure electric mode of operation. It should be noted that, the power battery assembly 6 may be charged through the charging port 36 on the right side of the entire vehicle.
It should be noted that, the whole vehicle of the port tractor has compact structure arrangement, and after the power battery assembly is arranged, the motor radiator 7 can be custom designed according to the spare size, so that the shortest wheelbase under the same cruising ability can be ensured, and the turning radius of the whole vehicle is reduced. The port tractor has a minimum wheelbase of 3900mm under the premise that the battery power is 132kW/h and the total volume of a gas cylinder is 1110L (the working pressure of the gas cylinder is 35 Mpa).
It should be noted that the driving motor assembly 16 of the present invention includes a central motor, which is directly connected to a transmission shaft to transmit mechanical energy to the rear wheel assembly. According to this structure, the port tractor of the present invention can eliminate the transmission, thereby reducing the failure points.
The following describes the operating mode of the powertrain. When the power required by the port tractor is greater than the power provided by the fuel cell assembly 13, the power cell assembly 6 cooperates with the fuel cell assembly 13 to provide electrical power to enable the power required by the vehicle, which is in a hybrid power mode. When the power required by the vehicle is less than the power provided by the fuel cell assembly, there are two modes of operation: when the power battery SOC (power battery power percentage) is lower than 50%, the power battery assembly 6 is charged by the power generated by the fuel battery assembly 13; when the power cell SOC (power cell charge percentage) is higher than 50%, the fuel cell assembly 13 is operated at a reduced power. According to the above-described operation mode, the powertrain of the present invention can meet the power required by the vehicle with an extremely small carbon emission level, regardless of whether the power required by the vehicle is large or small.
In addition, the port tractor of the present invention has the function of energy recovery in addition to the above-described charging of the power cell assembly 6 by the fuel cell assembly 13 when the power required by the vehicle is less than the power provided by the fuel cell assembly and the power cell SOC is less than 50%. Specifically, the drive motor assembly 15 generally functions as an engine, and when the vehicle brakes or decelerates, the drive motor assembly 15 reverses to function as a generator, which generates electrical energy that is used to reverse charge the power cell assembly 6 via the integrated controller and BDU.
As shown in fig. 4 and 5, the port tractor of the present invention further includes an air conditioning compressor 12 and an electric steering pump assembly 20. The electric steering pump assembly 20 provides power for steering the vehicle, the steering oil tank 22 provides hydraulic oil for the steering system, the electric steering pump assembly 20 is mounted on the steering pump bracket 21, and the steering oil tank 22 is mounted on the inner side of the left front part of the frame assembly 4. Meanwhile, the air conditioner compressor 12 is also arranged on the steering pump bracket 21, and the air conditioner compressor 12 provides a power source for the whole vehicle air conditioner. The air conditioning compressor 12 and the electric steering pump assembly 20 are both powered by an all-in-one controller.
The port tractor of the present invention also includes an electric air compressor 25 and an air reservoir 17. A part of the air taken in through the high-order intake duct 23 is supplied to the electric air compressor 25, and the clean air filtered by the air filter of the electric air compressor 25 is compressed and supplied to the air receiver 17 to supply an air source for the whole vehicle braking. The electric energy required by the electric air compressor 25 is also provided by the all-in-one controller 27.
The port tractor of the present invention also includes a buck converter (fuel cell DCL) 31 and a hydrogen fuel cell radiator 11. A part of the electric energy generated by the fuel cell assembly 13 is supplied to the fuel cell DCL31, and the fuel cell DCL31 is responsible for converting the high-voltage power supply of the fuel cell into a low-voltage power supply of 24V, and the electric energy after the depressurization is supplied to 5 electronic fans on the hydrogen fuel cell radiator 11 through the junction box 30, respectively. The hydrogen fuel cell radiator 11 is used for radiating heat generated in the chemical reaction process of the hydrogen fuel cell assembly 13, so that the normal operation of the hydrogen fuel cell assembly 13 is ensured.
The port tractor of the present invention includes a first front boarding ladder 33, a second front boarding ladder 34, and a rear boarding ladder 35. The first front upper step 33 and the second front upper step 34 are located on the left and right sides of the cab assembly 1, respectively, for an operator to enter the cab. The rear upper step 35 is located at the middle rear of the right side of the frame for an operator to step on the upper deck 10 of the frame, thereby facilitating the operation of the driver in connection with the trailer brake line and the like. The rear boarding ladder is located on the rear side of the first cylinder assembly 2 and on the front side of the second cylinder assembly 9. The purpose of this arrangement is to maximize the satisfaction of the customer's usage habits in a situation where normal operation of the hydrogen fuelled tractor is satisfied.
The above description is merely an embodiment of the present invention, and the present invention can be implemented in various modifications and improvements based on the knowledge of those skilled in the art.
Claims (13)
1. The utility model provides a harbour tractor, includes driver's cabin assembly, frame assembly, driving motor assembly and power assembly, its characterized in that:
the power assembly includes a hydrogen fuel cell assembly and a power cell assembly,
the hydrogen fuel cell assembly and the power cell assembly can both provide driving power to the driving motor assembly, and the hydrogen fuel cell assembly can also provide charging power to the power cell assembly,
the port tractor further comprises a gas storage system for providing hydrogen to the hydrogen fuel cell assembly and a gas inlet system for providing oxygen to the hydrogen fuel cell assembly,
the gas storage system comprises a first gas cylinder assembly and a second gas cylinder assembly, the first gas cylinder assembly is arranged above the frame assembly and is positioned behind the cab assembly, the second gas cylinder assembly is arranged on the side part of the frame assembly, and the upper surface of the first gas cylinder assembly is lower than the upper surface of the cab assembly by a preset size.
2. The port tractor of claim 1, wherein,
the port tractor further comprises an all-in-one controller and a motor controller, wherein the hydrogen fuel cell assembly and the power cell assembly are connected with the all-in-one controller so as to respectively transmit electric energy to the all-in-one controller, the all-in-one controller is connected with the motor controller, and the motor controller is connected with the driving motor assembly.
3. The port tractor of claim 2, wherein,
the hydrogen fuel cell assembly is equipped with a DC/DC converter;
the port tractor is provided with a pure hydrogen working mode, in the pure hydrogen working mode, electric energy generated in the hydrogen fuel cell assembly is integrated through the DC/DC converter and then is supplied to the all-in-one controller, the all-in-one controller distributes at least part of electric energy to the motor controller, the motor controller transmits the electric energy to the driving motor assembly, and the driving motor assembly converts the electric energy into mechanical energy, so that power required by the port tractor is provided.
4. The port tractor of claim 2, wherein,
the port tractor further comprises a battery energy distribution unit, wherein the battery energy distribution unit is connected between the power battery assembly and the all-in-one controller;
the port tractor is provided with a pure electric mode, in the pure electric mode, electric energy stored in the power battery assembly is transmitted to the all-in-one controller through the battery energy distribution unit, the all-in-one controller distributes partial electric energy to the motor controller through distribution, the motor controller transmits the electric energy to the driving motor assembly, and the driving motor assembly converts the electric energy into mechanical energy, so that power required by the port tractor is provided.
5. The port tractor of claim 4, wherein,
the driving motor assembly is provided with an engine mode, when the port tractor brakes or decelerates, the driving motor assembly rotates reversely to act as a generator, and the electric energy generated by the driving motor assembly reversely charges the power battery assembly through the all-in-one controller and the battery energy distribution unit.
6. The port tractor of claim 1, wherein,
when the power required by the port tractor is greater than the power provided by the hydrogen fuel cell assembly, the power assembly provides power in a hybrid power mode, the power being provided by both the hydrogen fuel cell assembly and the power cell assembly;
when the power required by the port tractor is smaller than the power provided by the fuel cell assembly, and when the residual electric quantity of the power cell assembly is lower than a preset threshold value, a part of the electric quantity generated by the fuel cell assembly charges the power cell assembly;
the fuel cell assembly is powered down when the power demanded by the port tractor is less than the power provided by the fuel cell assembly and when the remaining electrical power of the power cell assembly is above a preset threshold.
7. The port tractor of claim 2, wherein,
the port tractor further comprises an air conditioner compressor and an electric steering pump assembly; the all-in-one controller also provides electrical power to the air conditioner compressor and the electric steering pump assembly.
8. The port tractor of claim 1, wherein,
the air inlet system assembly comprises a high-level air inlet channel and a hydrogen fuel cell air filter, and the high-level air inlet channel and the hydrogen fuel cell air filter are used for filtering air in sequence so as to provide clean air for the hydrogen fuel cell assembly.
9. The port tractor of claim 8, wherein,
the port tractor further comprises an electric air compressor and an air cylinder; a part of the air coming in through the high-order air inlet channel is provided to the electric air compressor, the clean air filtered by the air filter of the electric air compressor is compressed and provided to the air storage cylinder so as to provide an air source for braking of the whole vehicle,
the electric energy required by the electric air compressor is provided by the all-in-one controller.
10. The port tractor of claim 1, wherein,
the port tractor further comprises a buck converter and a hydrogen fuel cell radiator;
and part of the electric energy generated by the hydrogen fuel cell assembly is provided for the buck converter, the buck converter converts the high-voltage power generated by the fuel cell assembly into a low-voltage power of 24V, and the electric energy after the buck conversion is respectively provided for a plurality of electronic fans on a radiator of the hydrogen fuel cell through a junction box so as to radiate heat generated in the chemical reaction process of the hydrogen fuel cell assembly.
11. The port tractor of claim 1, wherein,
the port tractor is provided with a first front boarding ladder, a second front boarding ladder and a rear boarding ladder;
the first front boarding ladder and the second front boarding ladder are respectively positioned at the left side and the right side of the cab and used for an operator to enter the cab;
the rear upper ladder is positioned at the middle rear part of the right side of the frame and is used for an operator to step on the upper walking board of the frame; wherein, the rear boarding ladder is located at the rear side of the first gas cylinder assembly and at the front side of the second gas cylinder assembly.
12. The port tractor of any one of claims 1-11, wherein,
the power battery assembly is provided with a side charging port and is used for being connected with an external power supply to charge; the gas storage system has a side hydrogenation port.
13. The port tractor of any one of claims 1-11, wherein,
the driving motor assembly comprises a central motor, and the central motor is connected with a transmission shaft in a direct-drive mode to transmit mechanical energy to the rear wheel assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311458819.8A CN117184260A (en) | 2023-11-03 | 2023-11-03 | port tractor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311458819.8A CN117184260A (en) | 2023-11-03 | 2023-11-03 | port tractor |
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| Publication Number | Publication Date |
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| CN117184260A true CN117184260A (en) | 2023-12-08 |
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| CN202311458819.8A Pending CN117184260A (en) | 2023-11-03 | 2023-11-03 | port tractor |
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| CN202827824U (en) * | 2012-09-21 | 2013-03-27 | 中国重汽集团济南动力有限公司 | Low-speed port towing vehicle with compressed natural gas (CNG) as fuel |
| CN211764968U (en) * | 2020-02-05 | 2020-10-27 | 海通科创(深圳)有限公司 | Hydrogen fuel cell port tractor |
| CN115366704A (en) * | 2021-05-18 | 2022-11-22 | 北汽福田汽车股份有限公司 | Battery configuration method of electric traction vehicle and electric traction vehicle |
| CN113787920A (en) * | 2021-09-24 | 2021-12-14 | 东风商用车有限公司 | Chassis arrangement structure of hydrogen fuel tractor and hydrogen fuel tractor |
| CN217917633U (en) * | 2022-06-23 | 2022-11-29 | 大运汽车股份有限公司 | Fuel cell tractor |
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