Hydrogen supply system, vehicle chassis and vehicle

Abstract

The utility model provides a hydrogen supply system, a vehicle chassis and a vehicle. The hydrogen supply system is used for providing hydrogen fuel for a vehicle and comprises a methanol water storage container, a heat exchanger, a reformer, a purifier and a heating combustor which are communicated in sequence; the purifier is communicated with a hydrogen pipeline and a combustion pipeline, and the combustion pipeline is communicated with the heating combustor; the hydrogen supply system further comprises a heat insulation and heat preservation shell, and the heat exchanger, the reformer, the purifier and the heating combustor are all arranged in the heat insulation and heat preservation shell. According to the invention, the refueling is not hydrogen but methanol; the methanol is wide in source and high in yield, so that the problems of difficult hydrogenation, short endurance and expensive hydrogenation in the current hydrogen fuel cell technical route are effectively avoided; furthermore, through the heat preservation effect of the heat insulation and heat preservation shell, temperature loss of the heat exchanger, the reformer, the purifier and the heating combustor can be reliably avoided, it is guaranteed that all the devices are kept at the high-temperature-required working temperature, and the hydrogen production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of commercial vehicles, in particular to a hydrogen supply system, further relates to a vehicle chassis comprising the hydrogen supply system, and further relates to a vehicle comprising the vehicle chassis. BACKGROUND

[0002] At present, the construction and operation cost of hydrogen refueling stations is high, and the coverage area of refueling stations is very limited. In addition, the current hydrogen fuel electric heavy truck has a short driving range, and the two factors together make the ordinary hydrogen fuel cell vehicle unable to meet the use requirements of most operation scenarios. At the same time, due to the technical bottlenecks of hydrogen production, storage, transportation, refueling, etc., the price of hydrogen for vehicles is high, which further limits the popularization and application of fuel cell technology in the heavy truck field. Only by effectively solving these pain points can the fuel cell heavy truck be accelerated. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the purpose of the present application is to provide a hydrogen supply system which avoids the technical bottlenecks of hydrogen production, storage, transportation, refueling, etc. that the traditional hydrogen fuel cell technology route must face, and has a positive significance for promoting the application of fuel cell technology route in the commercial vehicle industry.

[0004] Another purpose of the present application is to provide a vehicle chassis comprising the hydrogen supply system.

[0005] Still another purpose of the present application is to provide a vehicle comprising the vehicle chassis.

[0006] In order to achieve the above purpose, the present application provides the following technical solutions:

[0007] A hydrogen supply system for providing hydrogen fuel for a vehicle, comprising a methanol water storage container, a heat exchanger, a reformer, a purifier and a heating combustor connected in sequence; the purifier is connected with a hydrogen pipeline and a combustion pipeline, and the combustion pipeline is connected with the heating combustor;

[0008] The hydrogen supply system further comprises a heat insulation shell, and the heat exchanger, the reformer, the purifier and the heating combustor are all arranged in the heat insulation shell.

[0009] Optionally, in the hydrogen supply system, the hydrogen supply system further comprises an electric heating element, and the electric heating element is arranged in the heat insulation shell.

[0010] Optionally, in the hydrogen supply system, the electric heating element is a PTC thermistor.

[0011] Optionally, in the hydrogen supply system,

[0012] The hydrogen supply system comprises a hydrogen storage container, which is in communication with the hydrogen pipeline;

[0013] and / or,

[0014] The hydrogen supply system comprises a liquid pump, which is arranged on the communication pipeline between the methanol water storage container and the heat exchanger;

[0015] and / or,

[0016] The hydrogen supply system comprises a gas pump, which is arranged on the communication pipeline for supplying hydrogen outward from the hydrogen storage container;

[0017] and / or,

[0018] A control valve is arranged on the combustion pipeline.

[0019] A vehicle chassis comprises:

[0020] A vehicle frame;

[0021] A hydrogen fuel cell system, which is arranged on the vehicle frame, is used to convert the energy generated by hydrogen reaction into electric energy;

[0022] A hydrogen supply system as described above is arranged on the vehicle frame to supply hydrogen to the hydrogen fuel cell system;

[0023] A drive system, which is arranged on the vehicle frame, is electrically connected to the hydrogen fuel cell system.

[0024] Optionally, in the vehicle chassis described above, the heat insulation shell of the hydrogen supply system is arranged behind the cab of the vehicle;

[0025] and / or,

[0026] The hydrogen storage container of the hydrogen supply system is arranged behind the cab of the vehicle and above the heat insulation shell of the hydrogen supply system;

[0027] and / or,

[0028] The methanol water storage container of the hydrogen supply system is arranged in front of the rear wheels of the vehicle and on one side of the vehicle frame.

[0029] Optionally, in the vehicle chassis described above,

[0030] The hydrogen fuel cell system is arranged at the bottom of the cab of the vehicle;

[0031] and / or,

[0032] The drive system is arranged between the two rear wheels of the vehicle.

[0033] Optionally, in the vehicle chassis described above,

[0034] The vehicle chassis comprises a power battery system, which is electrically connected with the driving system;

[0035] and / or,

[0036] The vehicle chassis comprises a power battery controller, which is electrically connected with the power battery system, and the power battery controller (16) is a BMS, PDU integrated controller;

[0037] and / or,

[0038] The vehicle chassis comprises a low-voltage power supply, which is electrically connected with at least the electric heating element of the hydrogen supply system;

[0039] and / or,

[0040] The vehicle chassis comprises a power steering system, which is connected with the front wheels of the vehicle;

[0041] and / or,

[0042] The vehicle chassis comprises a front suspension system, by which the front wheels of the vehicle are mounted to the vehicle frame;

[0043] The vehicle chassis comprises a rear suspension system, by which the rear wheels of the vehicle are mounted to the vehicle frame;

[0044] and or,

[0045] The vehicle chassis comprises a cooling system for cooling the hydrogen fuel cell system;

[0046] and / or,

[0047] The vehicle chassis comprises an all-in-one controller, which is electrically connected with the hydrogen fuel cell system, the power battery controller, the low-voltage power supply, and the power steering system.

[0048] Optionally, in the above vehicle chassis,

[0049] The power battery system is mounted to the vehicle frame by a power battery frame;

[0050] and / or,

[0051] The power battery system is provided with two, and the two power battery systems are respectively located on both sides of the vehicle frame;

[0052] and / or,

[0053] The power battery controller is provided on one side of the vehicle frame;

[0054] and / or,

[0055] A low-voltage power supply is arranged on one side of the vehicle frame;

[0056] and / or,

[0057] The cooling system is arranged on the vehicle frame and located at the bottom of the cab of the vehicle and close to the hydrogen fuel cell system;

[0058] and / or,

[0059] The all-in-one controller is arranged on the vehicle frame and located at the bottom of the cab of the vehicle.

[0060] A vehicle comprising the vehicle chassis as described above.

[0061] In the hydrogen supply system, the vehicle chassis and the vehicle of the present application, the hydrogen fuel cell vehicle applied to the hydrogen supply system of the present application, compared with the traditional hydrogen fuel cell vehicle, the refueling is not hydrogen, but methanol; the source of methanol is extensive and the yield is high, which effectively avoids the problems of hydrogen refueling difficulty, short endurance and expensive hydrogen refueling faced by the current hydrogen fuel cell technology route; and compared with other types of new energy vehicles, the endurance mileage is significantly improved; based on the traditional hydrogen fuel cell vehicle technology scheme, the hydrogen supply system of the present application uses on-board methanol reforming to replace the high-pressure hydrogen bottle hydrogen storage system, and the hydrogen supply system works when the vehicle is running, preparing methanol fuel into hydrogen gas that can be directly used by the hydrogen stack of the hydrogen fuel cell system, thereby realizing vehicle energy replenishment, which has a positive significance for promoting the application of fuel cell technology route in the commercial vehicle industry; further, through the heat preservation effect of the heat insulation and heat preservation shell, the heat loss of the heat exchanger, reformer, purifier and heating combustor can be reliably avoided, ensuring that each device maintains a high temperature requirement working temperature, and improving the hydrogen production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without creating any creative labor.

[0063] Figure 1 The principle diagram of methanol reforming hydrogen production of the hydrogen supply system of the present application embodiment;

[0064] Figure 2 The working flowchart of methanol reforming hydrogen production of the hydrogen supply system of the present application embodiment;

[0065] Figure 3 The structural schematic diagram of the vehicle chassis of the present application embodiment;

[0066] Figure 4 A vehicle driving working principle diagram of the embodiment of the present application.

[0067] The upper Figures 1-4 The middle:

[0068] 1, methanol water storage container; 2, heat exchanger; 3, reformer; 4, purifier; 5, heating burner; 6, heat insulation shell; 7, electric heating element; 8, hydrogen storage container; 9, liquid pump; 10, control valve; 11, hydrogen supply system; 12, vehicle frame; 13, hydrogen fuel cell system; 14, drive system; 15, power battery system; 16, power battery controller; 17, low-voltage power supply; 18, power steering system; 19, front suspension system; 20, rear suspension system; 21, cooling system; 22, all-in-one controller; 23, power battery frame; 24, gas pump;

[0069] 41, hydrogen pipeline; 42, combustion pipeline. DETAILED DESCRIPTION

[0070] The present application provides a hydrogen supply system, a vehicle chassis and a vehicle.

[0071] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0072] As Figures 1-4 shown, the present application provides a hydrogen supply system, which uses methanol reforming to produce hydrogen to provide hydrogen fuel for a vehicle. Specifically, the hydrogen supply system 11 provides hydrogen for the hydrogen fuel cell system 13 of the vehicle, and the hydrogen fuel cell system 13 is used to convert the energy of hydrogen reaction into electric energy and provide electric energy for the drive system 14. The hydrogen supply system 11 includes a methanol water storage container 1, a heat exchanger 2, a reformer 3, a purifier 4 and a heating burner 5 connected in sequence. The purifier 4 is connected with a hydrogen pipeline 41 and a combustion pipeline 42, and the combustion pipeline 42 is connected with the heating burner 5. The hydrogen supply system 11 further includes a heat insulation shell 6, and the heat exchanger 2, the reformer 3, the purifier 4 and the heating burner 5 are all arranged in the heat insulation shell 6.

[0073] It should be noted that, optionally, the hydrogen supply system 11 of the present application is a vehicle-mounted hydrogen supply system, which is arranged in a vehicle chassis. Preferably, the hydrogen supply system 11 of the present application is arranged in a heavy truck commercial vehicle chassis.

[0074] The methanol water storage container 1 stores liquid methanol and water, and the water is deionized water; the weight of the liquid methanol and water is the total weight described below, wherein the liquid methanol accounts for 6wt%-70wt% of the total weight, and the water accounts for 30wt%-40wt% of the total weight; preferably, the liquid methanol accounts for 63wt% of the total weight, and the water accounts for 37wt% of the total weight.

[0075] The heat exchanger 2 is an evaporator, and the liquid methanol and water flowing into the heat exchanger 2 from the methanol water storage container 1 are heated and vaporized in the evaporator to obtain methanol vapor and water vapor. The working temperature of the heat exchanger 2 is 250°C-350°C; preferably, the working temperature of the heat exchanger 2 is controlled to be 300°C.

[0076] The reformer 3 is provided with a hydrogen production catalyst; the methanol vapor and water vapor flow into the reformer 3 provided with the hydrogen production catalyst to react and produce hydrogen, and a mixed gas containing hydrogen, carbon monoxide and carbon dioxide is obtained. The main chemical reaction of methanol reforming to produce hydrogen is: CH3OH+H2O=3H2+CO2 (endothermic reaction); there are also decomposition reactions of part of the methanol and water: CH3OH=2H2+CO, H2O+CO=H2+CO2. The working temperature of the reformer 3 is 250°C-400°C; preferably, the working temperature of the reformer 3 is 300°C.

[0077] The purifier 4 is provided with a membrane separation device, which can separate the mixed gas output from the reformer 3 and produce high-purity hydrogen; the high-purity hydrogen is delivered to the hydrogen fuel cell system 13 through the hydrogen pipeline 41, and the intermediate product and unreacted methanol after the start of the methanol reforming reaction are delivered to the heating combustor 5 through the combustion pipeline 42. The purity of the hydrogen after the purifier 4 can reach 99.975%, which can be directly supplied to the hydrogen stack of the hydrogen fuel cell system 13. The working temperature of the purifier 4 is 350°C-500°C; preferably, the working temperature of the purifier 4 is 400°C.

[0078] The heating combustor 5 utilizes the intermediate product and unreacted methanol in the methanol reforming reaction to save combustion raw materials and save energy and protect the environment. The heating combustor 5 is used to maintain the working temperature of the heat exchanger 2, the reformer 3 and the purifier 4 of the hydrogen supply system at a high temperature requirement. The combustion heating temperature of the heating combustor 5 can reach 600°C-800°C; preferably, the combustion heating temperature of the heating combustor 5 is 700°C.

[0079] The heat-insulating and heat-preserving shell 6 can be made of heat-insulating materials; or the heat-insulating and heat-preserving shell 6 includes a shell body and heat-insulating materials arranged on the shell body. The heat-insulating materials include but are not limited to plates, blankets, cotton, paper, felt, profiled pieces, textiles, rock wool, glass wool, expanded perlite, foamed plastics.

[0080] As can be seen from the above, compared with the traditional hydrogen fuel cell vehicle, the hydrogen fuel cell vehicle applied to the hydrogen supply system 11 of the present application is refueled with methanol instead of hydrogen; methanol has a wide source and high yield, effectively avoiding the problems of hydrogen refueling difficulty, short driving range and high hydrogen refueling cost faced by the current hydrogen fuel cell technology route; and compared with other types of new energy vehicles, the driving range is significantly improved. Based on the technical scheme of the traditional hydrogen fuel cell vehicle, the hydrogen supply system 11 of the on-board methanol reforming is used to replace the high-pressure hydrogen cylinder hydrogen storage system, and the hydrogen supply system 11 works when the vehicle is running, and the methanol fuel is prepared into hydrogen that can be directly used by the hydrogen pile of the hydrogen fuel cell system 13, so as to realize vehicle energy supplementing, which has a positive significance for promoting the application of the fuel cell technology route in the commercial vehicle industry.

[0081] It should be emphasized that the present application provides a heat insulation shell 6, which can reliably prevent the temperature of the heat exchanger 2, the reformer 3, the purifier 4 and the heating combustor 5 from being lost, and ensures that the above-mentioned devices are maintained at a high temperature requirement working temperature, thereby improving the hydrogen production efficiency.

[0082] Please refer to the accompanying drawings Figure 1 In some embodiments of the present application, the hydrogen supply system further comprises an electric heating element 7 arranged in the heat insulation shell 6.

[0083] Before the hydrogen supply system 11 performs the methanol reforming reaction, it needs to enter a hot standby state first, at which time the electric heating element 7 starts to work to heat the temperature in the heat insulation shell 6, so that the heat exchanger 2, the reformer 3 and the purifier 4 reach a high temperature requirement working temperature. When the working temperature of the above-mentioned devices is reached, the hydrogen supply system 11 enters a running state and performs the methanol reforming reaction, at which time the heating combustor 5 starts to work. When the heating combustor 5 can maintain the working temperature required for the methanol reforming reaction, the electric heating element 7 stops working.

[0084] As described above, by arranging the electric heating element 7, the temperature in the heat insulation shell 6 can be preheated, so that the hydrogen supply system 11 can reach a high temperature requirement working temperature without triggering the reforming reaction.

[0085] In some embodiments of the present application, the electric heating element 7 is a PTC thermistor.

[0086] The PTC thermistor is a positive temperature coefficient thermistor, and its resistance value increases significantly with temperature rise. As an electric heating element, the PTC thermistor has the advantages of self-limiting temperature (i.e. when the temperature rises to a certain value, the resistance value will increase significantly to prevent the temperature from rising further), constant temperature heating, energy saving and high efficiency, long service life, miniaturization design, and no noise.

[0087] Please refer to the accompanying drawingsFigure 1 In some embodiments of the present application, the hydrogen supply system 11 comprises a hydrogen storage container 8, which is in communication with the hydrogen pipeline 41.

[0088] It is to be noted that the hydrogen storage container 8 is a low-pressure buffer hydrogen storage bottle, which is used to store low-pressure hydrogen.

[0089] The hydrogen produced by the hydrogen supply system 11 can be directly supplied to the hydrogen fuel cell system 13, or stored in the hydrogen storage container 8, which supplies hydrogen to the hydrogen fuel cell system 13. The hydrogen stored in the hydrogen storage container 8 can ensure that the hydrogen fuel cell system 13 can immediately enter the working state.

[0090] Please refer to the accompanying drawings Figure 1 In some embodiments, the hydrogen supply system 11 comprises a liquid pump 9, which is arranged on the communication pipeline between the methanol-water storage container 1 and the heat exchanger 2. As described above, the liquid pump 9 can stably and reliably pump the liquid methanol and water in the methanol-water storage container 1 into the heat exchanger 2 for evaporation and gasification.

[0091] Further, the hydrogen supply system 11 comprises a gas pump 24, which is arranged on the communication pipeline between the hydrogen storage container 8 and the hydrogen fuel cell system 13. As described above, the gas pump 24 can stably and reliably pump hydrogen to the hydrogen fuel cell system 13.

[0092] Please refer to the accompanying drawings Figure 1 In some embodiments, a control valve 10 is arranged on the combustion pipeline 42. As described above, the control valve 10 can accurately control the amount of intermediate products and unreacted methanol flowing into the methanol reforming hydrogen production reaction in the heating combustor 5, thereby accurately controlling the combustion heating temperature of the heating combustor 5.

[0093] Please refer to the accompanying drawings Figure 2 It is a working flow chart of the methanol reforming hydrogen production of the hydrogen supply system 11, which comprises:

[0094] ① Hot standby

[0095] The reformer 3 performs abnormal fault detection by HMI (i.e. human-machine interface) and protocol triggering "hot standby" instruction; if there is no abnormal fault, the reformer 3 enters the hot standby state, and the reformer 3 starts to keep warm (the reformer 3 opening the keep warm means that the electric heating element 7 works, and the temperature of the reformer 3 is preheated, so that the temperature of the reformer 3 is raised or kept in the working temperature range after being raised);

[0096] ② Running

[0097] The HMI and the protocol trigger the "running" instruction, and the hydrogen supply system 11 detects whether the reformer 3 has the running condition (the running condition is that the reformer 3 has no abnormal failure; the temperature of the reformer 3 and the temperature of the purifier 4 are in the working temperature range, and the pressure of the hydrogen storage container 8 is in the limited range); if the running condition is met, the reformer 3 enters the running state, and the hydrogen supply system 11 carries out the methanol reforming reaction to produce hydrogen.

[0098] ③ Shutdown

[0099] When any of the abnormal failure of the hot standby state and the abnormal failure of the running state occurs, the hydrogen supply system 11 will automatically trigger the "shutdown" instruction; when the "shutdown" instruction is triggered through the HMI and the protocol, or the "shutdown" instruction is automatically triggered due to the abnormal failure, the hydrogen supply system 11 will enter the shutdown state, at this time the methanol water storage container 1 no longer supplies methanol fuel to the heat exchanger 2, and the hydrogen supply system 11 no longer supplies hydrogen fuel to the hydrogen fuel cell system 13; the heating burner 5 stops the combustion heating work, and the electric heating element 7 stops the electric heating work.

[0100] Please refer to the accompanying drawings Figure 2 It should be noted that when the "running" instruction is triggered, the pressure of the hydrogen storage container 8 is determined, and when the hydrogen storage container pressure < the set pressure (the set pressure is 15 psi), it indicates that the hydrogen storage container 8 has space to store hydrogen, and the hydrogen supply system 11 carries out methanol reforming to produce hydrogen; when the hydrogen storage container pressure > 25 psi, it indicates that the hydrogen storage capacity of the hydrogen storage container 8 is saturated, at this time the hydrogen supply system 11 suspends the methanol reforming to produce hydrogen, and activates the hot standby state. In the running state, when the hydrogen storage container pressure > 1 bar, it indicates that the hydrogen storage capacity in the hydrogen storage container 8 meets the consumption demand of the hydrogen fuel cell system 13, at this time the hydrogen storage container 8 supplies hydrogen to the hydrogen fuel cell system 13, and the hydrogen fuel cell system 13 enters the loading state to provide electric energy for the driving system 14.

[0101] Please refer to the accompanying drawings Figure 3 In summary, the application also provides a vehicle chassis, which comprises a vehicle frame 12, a hydrogen fuel cell system 13, a hydrogen supply system 11 as described above, and a driving system 14. The hydrogen fuel cell system 13 is arranged on the vehicle frame 12, and is used to convert the energy of hydrogen reaction into electric energy. The hydrogen supply system 11 is arranged on the vehicle frame 12, and is used to supply hydrogen to the hydrogen fuel cell system 13. The driving system 14 is arranged on the vehicle frame 12, and the driving system 14 is electrically connected with the hydrogen fuel cell system 13.

[0102] The vehicle chassis provides a support carrier for the installation and fixation of the hydrogen supply system 11, the hydrogen fuel cell system 13 and the driving system 14; the hydrogen supply system 11 uses methanol reforming to produce hydrogen, which is provided for the hydrogen fuel cell system 13, and the hydrogen fuel cell system 13 is used to convert the energy of hydrogen reaction into electric energy and provide electric energy for the driving system 14.

[0103] Since the vehicle chassis of the present application comprises the hydrogen supply system as described above, the beneficial effects of the vehicle chassis brought by the hydrogen supply system are described above and will not be repeated here.

[0104] In some embodiments of the present application, the heat insulation shell 6 of the hydrogen supply system 11 is arranged behind the cab of the vehicle. Further, the hydrogen storage container 8 of the hydrogen supply system 11 is arranged behind the cab of the vehicle and above the heat insulation shell 6 of the hydrogen supply system 11. It should be noted that the hydrogen storage container 8 and the heat insulation shell 6 are arranged above and below and are located in the space between the cab and the carriage. As described above, the hydrogen storage container 8 and the heat insulation shell 6 make full use of the space between the cab and the carriage, do not occupy the upper mounting space required for the installation of the carriage on the vehicle frame 12, and thus do not affect the carrying capacity.

[0105] In some embodiments, the methanol water storage container 1 of the hydrogen supply system 11 is arranged in front of the rear wheels of the vehicle and on one side of the vehicle frame 12. It should be noted that the height of the methanol water storage container 1 does not exceed the height of the vehicle frame 12. As described above, the setting position of the methanol water storage container 1 does not affect the installation of other functional systems, and does not occupy the upper mounting space required for the installation of the carriage on the vehicle frame 12, and thus does not affect the carrying capacity.

[0106] In some embodiments of the present application, the hydrogen fuel cell system 13 is located at the bottom of the cab of the vehicle. It should be noted that the hydrogen fuel cell system 13 is located at the position of the traditional diesel engine, i.e. directly below the cab. The hydrogen fuel cell system 13 is arranged on the vehicle frame 12 and below the upper mounting space required for the installation of the cab on the vehicle frame 12, which greatly releases the upper mounting space and can leave more space for the installation of the cab.

[0107] In some embodiments, the driving system 14 is arranged on the vehicle frame 12 and between the two rear wheels of the vehicle. It should be noted that the driving motor, the gearbox, the differential and the rear axle are integrated into an electric drive axle as the driving system 14 of the vehicle. As described above, the driving system 14 has a short power transmission path, which can ensure the stable and reliable operation of the vehicle driven by the driving system 14.

[0108] In some embodiments of the present application, the vehicle chassis comprises a power battery system 15, which is electrically connected with the driving system 14. It should be noted that the power battery system 15 comprises a lithium-ion power battery.

[0109] Please refer to the accompanying drawings Figure 4 When the vehicle is just started (the hydrogen supply system 11 does not carry out methanol reforming to produce hydrogen), the power battery system 15 directly provides electric energy to the driving system 14 through the power supply path ② to drive the vehicle to run; at the same time, the hydrogen supply system 11 system enters a hot standby state, and after the hot standby is completed, the hydrogen supply system 11 enters a running state and starts to carry out methanol reforming to produce hydrogen, and the hydrogen produced is supplied to the hydrogen stack of the hydrogen fuel cell system 13 to generate electricity, at this time the hydrogen fuel cell system 13 provides electric energy to the driving system 14 through the power supply path ① to drive the vehicle to run. As described above, the vehicle using the vehicle chassis has two power sources, the hydrogen fuel cell system 13 and the power battery system 15, which can intelligently switch or work together according to different driving conditions, so that the vehicle can still maintain high energy efficiency during long-distance driving, avoiding the problem of range anxiety faced by pure fuel cell vehicles.

[0110] Please refer to the accompanying drawings Figure 3 Further, the power battery system 15 is installed on the vehicle frame 12 through the power battery frame 23. As described above, the stable installation effect of the power battery system 15 on the vehicle frame 12 can be ensured, and the power battery system 15 can be protected to some extent, ensuring the safe and reliable normal work of the power battery system 15.

[0111] Further, the power battery system 15 is provided with two, and the two power battery systems 15 are respectively located on both sides of the vehicle frame 12; the height of the power battery system 15 does not exceed the height of the vehicle frame 12. As described above, the power battery system 15 will not occupy the upper installation space required for the installation of the vehicle compartment on the vehicle frame 12, and thus will not affect the load capacity.

[0112] The vehicle chassis comprises a power battery controller 16, which is electrically connected with the power battery system 15. It should be noted that the power battery controller 16 is a BMS and PDU integrated controller, which integrates the functions of the battery management system (BMS) and the power distribution unit (PDU), which not only simplifies the complexity of the system, but also improves the overall efficiency, reliability and safety. By setting the power battery controller 16, the voltage, current, state of charge, etc. of the power battery system 15 can be monitored in real time to ensure that the battery works within a safe range; at the same time, the electric energy of the power battery system 15 is reasonably distributed to different loads to realize power distribution, load management, short circuit protection, overcurrent protection, etc.

[0113] Further, the power battery controller 16 is arranged on one side of the vehicle frame 12 and close to the power battery system 15 arranged on one side of the vehicle frame 12, so as to facilitate the electrical connection between the power battery controller 16 and the power battery system 15.

[0114] The vehicle chassis comprises a low-voltage power supply 17, which is electrically connected with at least the electric heating element 7 of the hydrogen supply system 11. The low-voltage power supply 17 is also used to provide electrical energy for low-voltage accessories of the vehicle, for example, the low-voltage accessories can be a vehicle lamp lighting system, a vehicle-mounted electronic device, etc. The electric heating element 7 is provided with electrical energy by the low-voltage power supply 17, so as to ensure the safe and reliable normal work of the electric heating element 7.

[0115] Further, the low-voltage power supply 17 is arranged on one side of the vehicle frame 12 and behind the power battery system 15; the height of the low-voltage power supply 17 does not exceed the height of the vehicle frame 12. As described above, the low-voltage power supply 17 does not occupy the upper mounting space required for the installation of the vehicle compartment on the vehicle frame 12, and thus does not affect the load capacity.

[0116] The vehicle chassis comprises a power steering system 18, a front suspension system 19, and a rear suspension system 20 arranged on the vehicle frame 12; the power steering system 18 is connected with the front wheels of the vehicle; the front wheels of the vehicle are installed on the vehicle frame 12 through the front suspension system 19; and the rear wheels of the vehicle are installed on the vehicle frame 12 through the rear suspension system 20.

[0117] The vehicle chassis comprises a cooling system 21 for cooling the hydrogen fuel cell system 13. The cooling system 21 is arranged to cool the hydrogen fuel cell system 13, so as to ensure the safe and reliable normal work of the hydrogen fuel cell system 13. The cooling system 21 can be water cooling and / or air cooling.

[0118] Further, the cooling system 21 is arranged on the vehicle frame 12 and at the bottom of the cab and close to the hydrogen fuel cell system 13.

[0119] The vehicle chassis comprises an all-in-one controller 22, which is electrically connected with the hydrogen fuel cell system 13, the power battery controller 16, the low-voltage power supply 17, and the power steering system 18. The all-in-one controller 22 can control all the electrical modules on the vehicle chassis, as well as valves and pump assemblies, etc.

[0120] Further, the all-in-one controller 22 is arranged on the vehicle frame 12 and at the bottom of the cab.

[0121] In summary, the application also provides a vehicle comprising the vehicle chassis described above.

[0122] Since the vehicle comprises the vehicle chassis described above, the beneficial effects of the vehicle brought by the vehicle chassis are described above and will not be repeated here.

[0123] The above describes the basic principles of the present application in combination with specific embodiments, but it should be noted that the advantages, benefits, effects and the like mentioned in the present application are only examples and are not limiting, and these advantages, benefits, effects and the like cannot be considered as necessary for each embodiment of the present application. In addition, the above specific details disclosed are only for the purpose of illustration and understanding, and are not limiting, and the above details do not limit the present application to be necessarily implemented with the above specific details.

[0124] The block diagrams of the devices, apparatuses, equipment, systems involved in the present application are only illustrative examples and are not intended to require or imply the connection, arrangement, configuration as shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, systems can be connected, arranged, configured in any manner. Words such as "include", "contain", "have" and the like are open-ended words, meaning "including but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0125] It should also be noted that in the devices, equipment and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present application.

[0126] The above description of the disclosed aspects is provided so that any person skilled in the art can make or use the present application. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0127] It should be understood that the adjectives "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only used for clearer description of the technical solutions, and cannot be used to limit the protection scope of the present application.

[0128] The above description has been given for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain modifications, alterations, changes, additions and sub-combinations thereof.

Claims

1. A hydrogen supply system characterized by comprising: The application relates to a hydrogen supply system for providing hydrogen fuel for a vehicle, which comprises a methanol water storage container (1), a heat exchanger (2), a reformer (3), a purifier (4) and a heating combustor (5) which are sequentially communicated; the purifier (4) is communicated with a hydrogen pipeline (41) and a combustion pipeline (42), and the combustion pipeline (42) is communicated with the heating combustor (5). The hydrogen supply system further comprises a heat insulation shell (6), and the heat exchanger (2), the reformer (3), the purifier (4) and the heating combustor (5) are arranged in the heat insulation shell (6).

2. The hydrogen-donating system according to claim 1, wherein The hydrogen supply system further comprises an electric heating element (7), and the electric heating element (7) is arranged in the heat insulation shell (6).

3. The hydrogen supply system according to claim 2, wherein The electric heating element (7) is a PTC thermistor.

4. The hydrogen supply system according to any one of claims 1-3, characterized in that, the hydrogen supply system comprises a hydrogen storage container (8), and the hydrogen storage container (8) is communicated with the hydrogen pipeline (41); and / or, the hydrogen supply system comprises a liquid pump (9), and the liquid pump (9) is arranged on a communication pipeline between the methanol water storage container (1) and the heat exchanger (2); and / or, the hydrogen supply system comprises a gas pump (24), and the gas pump (24) is arranged on a communication pipeline for supplying hydrogen outward from the hydrogen storage container (8); and / or, a control valve (10) is arranged on the combustion pipeline (42).

5. A vehicle chassis, characterized by Comprise: a vehicle frame (12); a hydrogen fuel cell system (13) arranged on the vehicle frame (12) and used for converting energy generated by hydrogen reaction into electric energy; a hydrogen supply system (11) according to any one of claims 1-4 arranged on the vehicle frame (12) and used for supplying hydrogen for the hydrogen fuel cell system (13); a drive system (14) arranged on the vehicle frame (12) and electrically connected with the hydrogen fuel cell system (13).

6. The vehicle chassis according to claim 5, characterized in that, the heat insulation shell (6) of the hydrogen supply system (11) is arranged behind a cab of the vehicle; and / or, the hydrogen storage container (8) of the hydrogen supply system (11) is arranged behind the cab of the vehicle and above the heat insulation shell (6) of the hydrogen supply system (11); and / or, the methanol water storage container (1) of the hydrogen supply system (11) is arranged in front of a rear wheel of the vehicle and on one side of the vehicle frame (12).

7. The vehicle chassis according to claim 5, characterized in that, the hydrogen fuel cell system (13) is arranged at the bottom of the cab of the vehicle; and / or, the drive system (14) is arranged between two rear wheels of the vehicle.

8. The vehicle chassis according to claim 5, characterized in that, the vehicle chassis comprises a power battery system (15) electrically connected with the drive system (14); and / or, The vehicle chassis comprises a power battery controller (16) which is electrically connected with a power battery system (15), and the power battery controller (16) is a BMS, PDU integrated controller; and / or, The vehicle chassis comprises a low-voltage power supply (17) which is electrically connected with at least the electric heating element (7) of the hydrogen supply system (11); and / or, The vehicle chassis comprises a power steering system (18) which is connected with the front wheels of the vehicle; and / or, The vehicle chassis comprises a front suspension system (19) by which the front wheels of the vehicle are mounted to the vehicle frame (12); The vehicle chassis comprises a rear suspension system (20) by which the rear wheels of the vehicle are mounted to the vehicle frame (12); and / or, The vehicle chassis comprises a cooling system (21) for cooling the hydrogen fuel cell system (13); and / or, The vehicle chassis comprises an all-in-one controller (22) which is electrically connected with the hydrogen fuel cell system (13), the power battery controller (16), the low-voltage power supply (17), and the power steering system (18).

9. The vehicle chassis according to claim 8, wherein The power battery system (15) is mounted to the vehicle frame (12) through a power battery frame (23); and / or, The power battery system (15) is provided with two, and the two power battery systems (15) are respectively located on both sides of the vehicle frame (12); and / or, The power battery controller (16) is provided on one side of the vehicle frame (12); and / or, The low-voltage power supply (17) is provided on one side of the vehicle frame (12); and / or, The cooling system (21) is provided on the vehicle frame (12) and is located at the bottom of the cab of the vehicle and close to the hydrogen fuel cell system (13); and / or, The all-in-one controller (22) is provided on the vehicle frame (12) and is located at the bottom of the cab of the vehicle.

10. A vehicle characterized by comprising: The vehicle chassis comprises the vehicle chassis according to any one of claims 5-9.

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