Fuel cell commercial vehicle range prediction method, device, medium and equipment

Abstract

The application discloses a fuel cell commercial vehicle driving range prediction method and device, medium and equipment. The driving range prediction method comprises the following steps: testing the power consumption of a target commercial vehicle in a pure electric mode and the power consumption of the target commercial vehicle in a hybrid mode; comprehensively calculating the power consumption per 100 kilometers in the pure electric mode and the hydrogen consumption per 100 kilometers in the hybrid mode; and calculating the total driving range according to the total power of the energy storage battery and the total hydrogen fuel amount of the fuel cell, so as to realize the calculation of the total driving range of the target commercial vehicle in a non-full-hydrogen-full-electric state, simplify the test process, reduce the test cost and improve the test efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fuel cell hybrid commercial vehicles, in particular to a fuel cell commercial vehicle driving range prediction method, device, medium and equipment. BACKGROUND

[0002] Fuel cell vehicles have received widespread attention as an environmentally friendly and efficient new energy vehicle. Fuel cell vehicles use hydrogen as the main fuel and convert chemical energy into electrical energy through fuel cells, which has the advantages of high efficiency, cleanliness and long driving range. The accurate evaluation of energy consumption and driving range of fuel cell vehicles has been a technical problem in the industry. The traditional energy consumption and driving range evaluation method is to test the vehicle from full hydrogen and full electricity to the stop on the chassis dynamometer. It is a time-consuming and difficult process to fill hydrogen. The industry standard for the vehicle under test is that the internal temperature of the on-board hydrogen cylinder is 15℃ when the pressure reaches the rated pressure. However, filling the on-board hydrogen cylinder is a warming process, and the internal temperature of the on-board hydrogen cylinder will rise rapidly. Although the rated pressure is reached, the internal temperature is higher than 15℃, so when the internal temperature of the on-board hydrogen cylinder drops to 15℃, the internal pressure of the hydrogen cylinder will also drop, resulting in insufficient hydrogen gas storage in the hydrogen cylinder. The general practice is to pressurize, wait for the temperature to drop, and then continue to pressurize, and so on. However, the heat dissipation capacity of the on-board hydrogen cylinder is poor, and it takes a long time to wait for the internal temperature of the on-board hydrogen cylinder to drop to room temperature, so the process of filling hydrogen is a very time-consuming and laborious process. And it needs to be tested for a long time, the test process is complicated, time-consuming and high-cost.

[0003] Therefore, there is a need for a method that can quickly and accurately test the driving range of a fuel cell vehicle. SUMMARY

[0004] To solve the above technical problems, the present application is proposed. The embodiments of the present application provide a fuel cell commercial vehicle driving range prediction method, device, medium and equipment.

[0005] According to one aspect of the present application, a fuel cell commercial vehicle driving range prediction method is provided, comprising: testing a first power consumption of a target commercial vehicle in a driving cycle condition under a pure electric mode; wherein the target commercial vehicle comprises an energy storage battery and a fuel cell, and the pure electric mode represents that the energy storage battery outputs power alone for the target commercial vehicle to drive; correcting the first power consumption based on operating parameters of the target commercial vehicle under the pure electric mode to obtain a corrected first power consumption; calculating a power consumption per 100 kilometers of the target commercial vehicle under the pure electric mode based on the corrected first power consumption and a first driving range of the target commercial vehicle under the pure electric mode; testing a second power consumption of the target commercial vehicle in a driving cycle condition under a hybrid mode; wherein the hybrid mode represents that the energy storage battery and the fuel cell output power together for the target commercial vehicle to drive, and the second power consumption represents the power output by the energy storage battery under the hybrid mode; correcting the second power consumption based on operating parameters of the target commercial vehicle under the hybrid mode to obtain a corrected second power consumption; calculating a hydrogen consumption per 100 kilometers of the target commercial vehicle under the hybrid mode based on the corrected second power consumption, the power consumption per 100 kilometers of the target commercial vehicle under the pure electric mode, a second driving range of the target commercial vehicle under the hybrid mode, and a hydrogen fuel consumption amount; and calculating a total driving range of the target commercial vehicle based on the power consumption per 100 kilometers of the target commercial vehicle under the pure electric mode and the hydrogen consumption per 100 kilometers under the hybrid mode, a total power amount in the energy storage battery, and a total hydrogen fuel amount of the fuel cell.

[0006] In an embodiment, the correcting the first power consumption based on the operating parameters of the target commercial vehicle under the pure electric mode to obtain the corrected first power consumption comprises: calculating a first required power of the target commercial vehicle under the pure electric mode based on the operating parameters of the target commercial vehicle under the pure electric mode; calculating a first corrected power of the target commercial vehicle under the pure electric mode based on the first required power; and correcting the first power consumption based on the first corrected power to obtain the corrected first power consumption.

[0007] In an embodiment, the calculating the first required power of the target commercial vehicle under the pure electric mode based on the operating parameters of the target commercial vehicle under the pure electric mode comprises: a calculation formula of the first required power is as follows:

[0008] ;

[0009] wherein, P 1 is the first required power, K 1, k 1 is a pre-set constant, m is a mass of the target commercial vehicle, a 1 is an acceleration under the pure electric mode, v 1 is a vehicle speed under the pure electric mode,f rl1 This is the drag correction constant in pure electric mode. g It is the acceleration due to gravity. This is the angle correction constant in pure electric mode.

[0010] In one embodiment, the step of correcting the second power consumption based on the operating parameters of the target commercial vehicle in hybrid mode to obtain the corrected second power consumption includes: calculating the second power demand of the target commercial vehicle in hybrid mode based on the operating parameters of the target commercial vehicle in hybrid mode; calculating the second corrected power consumption of the target commercial vehicle in hybrid mode based on the second power demand; and correcting the second power consumption based on the second corrected power consumption to obtain the corrected second power consumption.

[0011] In one embodiment, calculating the second power demand of the target commercial vehicle in hybrid mode based on its operating parameters in hybrid mode includes: the formula for calculating the second power demand is as follows:

[0012] ;

[0013] in, P 2 represents the primary power requirement. K 2. k 2 is a pre-set constant. m For the quality of target commercial vehicles, a 2 represents acceleration in pure electric mode. v 2 represents the vehicle speed in pure electric mode. f rl2 This is the drag correction constant in pure electric mode. g It is the acceleration due to gravity. This is the angle correction constant in pure electric mode.

[0014] In one embodiment, calculating the hydrogen consumption per 100 kilometers of the target commercial vehicle in hybrid mode based on the corrected second power consumption, the power consumption per 100 kilometers of the target commercial vehicle in pure electric mode, the second driving range of the target commercial vehicle in hybrid mode, and the hydrogen fuel consumption includes: calculating the mileage contributed by the fuel cell in hybrid mode based on the corrected second power consumption, the power consumption per 100 kilometers of the target commercial vehicle in pure electric mode, and the second driving range of the target commercial vehicle in hybrid mode; and calculating the hydrogen consumption per 100 kilometers of the target commercial vehicle in hybrid mode based on the mileage contributed by the fuel cell in hybrid mode and the hydrogen fuel consumption of the fuel cell in hybrid mode.

[0015] In an embodiment, the calculating the total driving range of the target commercial vehicle based on the 100-kilometer electricity consumption of the target commercial vehicle in the pure electric mode, the 100-kilometer hydrogen consumption of the target commercial vehicle in the hybrid mode, the total electricity quantity in the energy storage battery, and the total hydrogen fuel quantity of the fuel cell includes: calculating a pure electric driving range of the target commercial vehicle based on the 100-kilometer electricity consumption of the target commercial vehicle in the pure electric mode and the total electricity quantity in the energy storage battery; calculating a hybrid driving range of the target commercial vehicle based on the 100-kilometer hydrogen consumption of the target commercial vehicle in the hybrid mode and the total hydrogen fuel quantity of the fuel cell; and calculating the total driving range of the target commercial vehicle based on the pure electric driving range and the hybrid driving range.

[0016] According to another aspect of the present application, there is provided a fuel cell commercial vehicle driving range prediction device, comprising: a first electricity quantity testing module configured to test a first electricity consumption of a target commercial vehicle in a pure electric mode driving cycle; wherein the target commercial vehicle comprises an energy storage battery and a fuel cell, and the pure electric mode represents that the energy storage battery outputs electricity alone for driving the target commercial vehicle; a first electricity quantity correction module configured to correct the first electricity consumption based on operating parameters of the target commercial vehicle in the pure electric mode to obtain a corrected first electricity consumption; a 100-kilometer electricity consumption calculation module configured to calculate 100-kilometer electricity consumption of the target commercial vehicle in the pure electric mode based on the corrected first electricity consumption and a first driving distance of the target commercial vehicle in the pure electric mode; a second electricity quantity testing module configured to test a second electricity consumption of the target commercial vehicle in a hybrid mode driving cycle; wherein the hybrid mode represents that the energy storage battery and the fuel cell output electricity together for driving the target commercial vehicle, and the second electricity consumption represents electricity output by the energy storage battery in the hybrid mode; a second electricity quantity correction module configured to correct the second electricity consumption based on operating parameters of the target commercial vehicle in the hybrid mode to obtain a corrected second electricity consumption; a 100-kilometer hydrogen consumption calculation module configured to calculate 100-kilometer hydrogen consumption of the target commercial vehicle in the hybrid mode based on the corrected second electricity consumption, the 100-kilometer electricity consumption of the target commercial vehicle in the pure electric mode, a second driving distance of the target commercial vehicle in the hybrid mode, and a hydrogen fuel consumption quantity; and a driving range calculation module configured to calculate a total driving range of the target commercial vehicle based on the 100-kilometer electricity consumption of the target commercial vehicle in the pure electric mode, the 100-kilometer hydrogen consumption of the target commercial vehicle in the hybrid mode, a total electricity quantity in the energy storage battery, and a total hydrogen fuel quantity of the fuel cell.

[0017] According to another aspect of the present application, there is provided a computer readable storage medium, which stores a computer program for executing any of the above-mentioned methods.

[0018] According to another aspect of the present application, an electronic device is provided, comprising: a processor; a memory for storing instructions executable by the processor; and the processor configured to perform any of the above-described methods.

[0019] The application provides a fuel cell commercial vehicle driving range prediction method, device, medium and equipment. The first power consumption of a target commercial vehicle in a pure electric mode is tested. The target commercial vehicle comprises an energy storage battery and a fuel cell. The pure electric mode means that the energy storage battery outputs power alone for the target commercial vehicle to drive. The first power consumption is corrected based on the operating parameters of the target commercial vehicle in the pure electric mode, and the corrected first power consumption is obtained. The power consumption per 100 kilometers of the target commercial vehicle in the pure electric mode is calculated based on the corrected first power consumption and the first driving range of the target commercial vehicle in the pure electric mode. The second power consumption of the target commercial vehicle in a hybrid mode is tested. The hybrid mode means that the energy storage battery and the fuel cell output power together for the target commercial vehicle to drive. The second power consumption means the power output by the energy storage battery in the hybrid mode. The second power consumption is corrected based on the operating parameters of the target commercial vehicle in the hybrid mode, and the corrected second power consumption is obtained. The hydrogen consumption per 100 kilometers of the target commercial vehicle in the hybrid mode is calculated based on the corrected second power consumption, the power consumption per 100 kilometers of the target commercial vehicle in the pure electric mode, the second driving range of the target commercial vehicle in the hybrid mode and the hydrogen fuel consumption. The total driving range of the target commercial vehicle is calculated based on the power consumption per 100 kilometers of the target commercial vehicle in the pure electric mode and the hydrogen consumption per 100 kilometers of the target commercial vehicle in the hybrid mode, the total power of the energy storage battery and the total hydrogen fuel of the fuel cell. That is, by testing the power consumption of the target commercial vehicle in the pure electric mode and the power consumption in the hybrid mode, the power consumption per 100 kilometers in the pure electric mode and the hydrogen consumption per 100 kilometers in the hybrid mode are calculated comprehensively. According to the total power of the energy storage battery and the total hydrogen fuel of the fuel cell, the total driving range is calculated, so as to realize the calculation of the total driving range of the target commercial vehicle in the non-full hydrogen full power state, simplify the test process, reduce the test cost and improve the test efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description thereof taken in conjunction with the accompanying drawings, in which: like reference characters designate the same or similar parts throughout the drawings and best mode for carrying out the present application is provided in such full and complete detail as to make the application of the present application apparent to those skilled in the art, and is better understood when considered in connection with the following description and with reference to the accompanying drawings, in which:

[0021] Figure 1 FIG. 1 is a flowchart of a fuel cell commercial vehicle driving range prediction method according to an example embodiment of the present application.

[0022] Figure 2is a structure schematic diagram of a fuel cell commercial vehicle driving range prediction device provided by an example embodiment of the present application.

[0023] Figure 3 is a structure diagram of an electronic device provided by an example embodiment of the present application. DETAILED DESCRIPTION

[0024] Hereinafter, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part but not all of the embodiments of the present application, and the present application can be implemented in many different ways. Therefore, the contents described herein should be considered as illustrative rather than limiting the present application.

[0025] Figure 1 is a flowchart of a fuel cell commercial vehicle driving range prediction method provided by an example embodiment of the present application. As shown in the figure, the fuel cell commercial vehicle driving range prediction method comprises the following steps: Figure 1

[0026] Step 110: test the first power consumption of the target commercial vehicle in the pure electric mode under the driving cycle condition.

[0027] Wherein, the target commercial vehicle comprises an energy storage battery and a fuel cell, and the pure electric mode means that the energy storage battery outputs power alone for the target commercial vehicle to drive. Specifically, the target commercial vehicle is fixed on a chassis dynamometer, the sliding resistance coefficient of the vehicle to be tested is set, the SOC state of the energy storage battery is adjusted to meet the pure electric mode test requirements, the corresponding cycle condition is selected, the pure electric mode is run for 3 complete cycle conditions, and the first power consumption is obtained by averaging the results of 3 runs. The calculation formula of the first power consumption is as follows:

[0028]

[0029]

[0030] Step 120: based on the running parameters of the target commercial vehicle in the pure electric mode, the first power consumption is corrected to obtain the corrected first power consumption.

[0031] After obtaining the first power consumption, in order to be as close to the actual running state as possible, the present application corrects the first power consumption based on the running parameters of the target commercial vehicle to improve the accuracy of subsequent calculation.

[0032] Step 130: based on the corrected first power consumption and the first driving range of the target commercial vehicle in the pure electric mode, the 100 km power consumption of the target commercial vehicle in the pure electric mode is calculated.​​​​​​

[0033] The application calculates the 100-kilometer hydrogen consumption of the target commercial vehicle in the hybrid mode based on the corrected second power consumption, the 100-kilometer electricity consumption of the target commercial vehicle in the pure electric mode, the second driving mileage of the target commercial vehicle in the hybrid mode, and the hydrogen fuel consumption.

[0034]

[0035] Wherein, is the 100-kilometer hydrogen consumption of the target commercial vehicle in the hybrid mode, D 纯电 is the mileage of the target commercial vehicle running in the pure electric mode.

[0036] Step 140: test the second power consumption of the target commercial vehicle in the hybrid mode driving cycle.

[0037] Wherein, the hybrid mode means that the energy storage battery and the fuel cell jointly output the electricity for the target commercial vehicle to drive, and the second power consumption means the electricity output by the energy storage battery in the hybrid mode. The application fixes the target commercial vehicle on the chassis dynamometer, sets the coasting resistance coefficient of the vehicle to be tested, adjusts the SOC state of the energy storage battery to meet the test requirements of the hybrid mode, and selects the corresponding cycle. 6 complete cycle conditions are run in hybrid mode, and the second power consumption is obtained by averaging the results of 6 runs, wherein the calculation method of the second power consumption is similar to the calculation method of the first power consumption described above, which will not be repeated here.

[0038] Step 150: based on the running parameters of the target commercial vehicle in the hybrid mode, correct the second power consumption to obtain the corrected second power consumption.

[0039] After obtaining the second power consumption, in order to be as close to the actual running state as possible, the application corrects the second power consumption based on the running parameters of the target commercial vehicle to improve the accuracy of subsequent calculation.

[0040] Step 160: based on the corrected second power consumption, the 100-kilometer electricity consumption of the target commercial vehicle in the pure electric mode, the second driving mileage of the target commercial vehicle in the hybrid mode, and the hydrogen fuel consumption, calculate the 100-kilometer hydrogen consumption of the target commercial vehicle in the hybrid mode.

[0041] The application combines the corrected second power consumption, the 100-kilometer electricity consumption of the target commercial vehicle in the pure electric mode, the second driving mileage of the target commercial vehicle in the hybrid mode, and the hydrogen fuel consumption to calculate the 100-kilometer hydrogen consumption of the target commercial vehicle in the hybrid mode, so as to obtain the hydrogen fuel driving range in the hybrid mode.

[0042] Step 170: based on the 100-kilometer electricity consumption of the target commercial vehicle in the pure electric mode and the 100-kilometer hydrogen consumption in the hybrid mode, the total endurance mileage of the target commercial vehicle is calculated.

[0043] After the 100-kilometer electricity consumption of the target commercial vehicle in the pure electric mode and the 100-kilometer hydrogen consumption in the hybrid mode are calculated, the total endurance mileage of the target commercial vehicle is calculated in combination with the total electricity in the energy storage battery and the total hydrogen fuel amount of the fuel cell.

[0044] If the instrument of the target commercial vehicle gives a parking indication or the speed tolerance and time tolerance of the target commercial vehicle on the cycle working condition during the experiment cannot meet the requirements of the set tolerance and reference curve, the target commercial vehicle is parked; when the target commercial vehicle is parked, the gear of the target commercial vehicle remains unchanged, and the vehicle is coasted to the lowest stable vehicle speed or 5 km / h, and then the brake pedal is stepped on for parking.

[0045] The fuel cell commercial vehicle endurance mileage prediction method provided by the application tests the first electricity consumption of the target commercial vehicle in the pure electric mode; wherein the target commercial vehicle includes an energy storage battery and a fuel cell, and the pure electric mode means that the energy storage battery alone outputs electricity for the target commercial vehicle to travel; based on the operating parameters of the target commercial vehicle in the pure electric mode, the first electricity consumption is corrected to obtain the corrected first electricity consumption; based on the corrected first electricity consumption and the first driving distance of the target commercial vehicle in the pure electric mode, the 100-kilometer electricity consumption of the target commercial vehicle in the pure electric mode is calculated; the second electricity consumption of the target commercial vehicle in the hybrid mode is tested; wherein the hybrid mode means that the energy storage battery and the fuel cell jointly output electricity for the target commercial vehicle to travel, and the second electricity consumption means the electricity output by the energy storage battery in the hybrid mode; based on the operating parameters of the target commercial vehicle in the hybrid mode, the second electricity consumption is corrected to obtain the corrected second electricity consumption; based on the corrected second electricity consumption, the 100-kilometer electricity consumption of the target commercial vehicle in the pure electric mode, the second driving distance of the target commercial vehicle in the hybrid mode and the hydrogen fuel consumption, the 100-kilometer hydrogen consumption of the target commercial vehicle in the hybrid mode is calculated; based on the 100-kilometer electricity consumption of the target commercial vehicle in the pure electric mode and the 100-kilometer hydrogen consumption in the hybrid mode, the total endurance mileage of the target commercial vehicle is calculated; that is, by testing the electricity consumption of the target commercial vehicle in the pure electric mode and the electricity consumption in the hybrid mode, the 100-kilometer electricity consumption in the pure electric mode and the 100-kilometer hydrogen consumption in the hybrid mode are comprehensively calculated, and the total endurance mileage is calculated according to the total electricity in the energy storage battery and the total hydrogen fuel amount in the fuel cell, so as to realize the calculation of the total mileage that the target commercial vehicle can travel in the non-full-hydrogen-full-electricity state, simplify the test process, reduce the test cost and improve the test efficiency.

[0046] In an embodiment, the specific implementation of the step 120 can be: calculating the first demand power of the target commercial vehicle in the pure electric mode based on the operating parameters of the target commercial vehicle in the pure electric mode; calculating the first corrected electric quantity of the target commercial vehicle in the pure electric mode based on the first demand power; and correcting the first electric consumption quantity based on the first corrected electric quantity to obtain the corrected first electric consumption quantity.

[0047] Specifically, the real-time traffic environment and the driving state are taken into consideration to calculate the first demand power of the target commercial vehicle in the pure electric mode, and the first corrected electric quantity of the target commercial vehicle in the pure electric mode is calculated based on the first demand power, and the first electric consumption quantity is corrected according to the first corrected electric quantity. Optionally, when the first corrected electric quantity is calculated, the difference between the first corrected electric quantity and the first electric consumption quantity can be calculated, and if the difference is small (less than a preset value), it indicates that the accuracy of the first electric consumption quantity is high, and the first electric consumption quantity does not need to be corrected at this time, and if the difference is large, it indicates that the accuracy of the first electric consumption quantity is low, and the average value of the first corrected electric quantity and the first electric consumption quantity can be taken as the corrected first electric consumption quantity.

[0048] In an embodiment, the calculation formula of the first demand power is as follows:

[0049] ;

[0050] wherein, P 1 is the first demand power, K 1, k 1 is a preset constant, m is the mass of the target commercial vehicle, a 1 is the acceleration in the pure electric mode, v 1 is the speed in the pure electric mode, f rl1 is the resistance correction constant in the pure electric mode, g is the acceleration of gravity, is the angle correction constant in the pure electric mode.

[0051] In an embodiment, the specific implementation of the step 150 can be: calculating the second demand power of the target commercial vehicle in the hybrid mode based on the operating parameters of the target commercial vehicle in the hybrid mode; calculating the second corrected electric quantity of the target commercial vehicle in the hybrid mode based on the second demand power; and correcting the second electric consumption quantity based on the second corrected electric quantity to obtain the corrected second electric consumption quantity.

[0052] Specifically, the real-time traffic environment and driving state are taken into consideration to calculate the second demand power of the target commercial vehicle in the hybrid mode, and the second corrected electric quantity of the target commercial vehicle in the hybrid mode is calculated based on the second demand power, and the second power consumption is corrected according to the second corrected electric quantity. Optionally, when the second corrected electric quantity is calculated, the difference between the second corrected electric quantity and the second power consumption can be calculated. If the difference is small (less than a preset value), it indicates that the accuracy of the second power consumption is high, and the second power consumption does not need to be corrected. If the difference is large, it indicates that the accuracy of the second power consumption is low, and the average value of the second corrected electric quantity and the second power consumption can be taken as the corrected second power consumption.

[0053] In an embodiment, the calculation formula of the second demand power is as follows:

[0054] ;

[0055] wherein, P 2 is the first demand power, K 2, k 2 is a preset constant, m is the mass of the target commercial vehicle, a 2 is the acceleration in the pure electric mode, v 2 is the speed in the pure electric mode, f rl2 is the resistance correction constant in the pure electric mode, g is the acceleration of gravity, is the angle correction constant in the pure electric mode.

[0056] In an embodiment, the specific implementation of the step 160 can be: based on the corrected second power consumption, the electric consumption per 100 kilometers of the target commercial vehicle in the pure electric mode, and the second driving distance of the target commercial vehicle in the hybrid mode, the contribution distance of the fuel cell in the hybrid mode is calculated; based on the contribution distance of the fuel cell in the hybrid mode and the hydrogen fuel consumption of the fuel cell in the hybrid mode, the hydrogen consumption per 100 kilometers of the target commercial vehicle in the hybrid mode is calculated.

[0057] Specifically, the contribution distance of the fuel cell in the hybrid mode is calculated by the following formula:

[0058]

[0059] wherein, is the contribution distance of the fuel cell in the hybrid mode, E REESS混动 is the second power consumption, D 混动 is the driving distance of the target commercial vehicle in the hybrid mode under the running cycle condition.

[0060] After the fuel cell contribution mileage in the hybrid mode is calculated, the hydrogen consumption per 100 kilometers of the target commercial vehicle in the hybrid mode is calculated by combining the fuel cell contribution mileage in the hybrid mode and the hydrogen fuel consumption of the fuel cell in the hybrid mode, and the specific calculation formula is as follows:

[0061] ;

[0062] Among them, the hydrogen consumption per 100 kilometers of the target commercial vehicle in the hybrid mode, the hydrogen fuel consumption of the fuel cell in the hybrid mode.

[0063] In an embodiment, the specific implementation of the above step 170 can be: based on the hydrogen consumption per 100 kilometers of the target commercial vehicle in the hybrid mode and the total hydrogen fuel amount of the fuel cell, the hybrid cruising range of the target commercial vehicle is calculated.

[0064] Specifically, the calculation formula of the pure electric cruising range of the target commercial vehicle is as follows:

[0065]

[0066] Among them, D REESS总 the pure electric cruising range of the target commercial vehicle, E REESS可用 the total amount of electricity in the energy storage battery.

[0067] The calculation formula of the hybrid cruising range of the target commercial vehicle is as follows:

[0068]

[0069] Among them, the hybrid cruising range of the target commercial vehicle, the total hydrogen fuel amount of the fuel cell. The calculation formula of the total hydrogen fuel amount of the fuel cell is as follows:

[0070]

[0071] Among them, V is the total volume of the high-pressure part and the accessories in the fuel tank, R is the common gas constant, P2 is the pressure of the fuel tank before the experiment, T2 is the ambient temperature before the experiment, Z2 is the hydrogen compression factor under the conditions of P2 and T2, m2 is the mass of hydrogen filled after the experiment, P3 is the pressure of the fuel tank after the experiment, T3 is the ambient temperature after the experiment, and Z3 is the hydrogen compression factor under the conditions of P3 and T3.

[0072] The formula for calculating the total driving range of the target commercial vehicle is as follows:

[0073]

[0074] in, D 总 The total driving range of the target commercial vehicle.

[0075] Figure 2 This is a schematic diagram of the structure of a fuel cell commercial vehicle range prediction device provided in an exemplary embodiment of this application. Figure 2 As shown, the fuel cell commercial vehicle range prediction device 20 includes: a first power consumption test module 21, used to test the first power consumption of the target commercial vehicle in a pure electric mode driving cycle; wherein, the target commercial vehicle includes an energy storage battery and a fuel cell, and pure electric mode means that the energy storage battery outputs power solely to power the target commercial vehicle; a first power consumption correction module 22, used to correct the first power consumption based on the operating parameters of the target commercial vehicle in pure electric mode, to obtain the corrected first power consumption; a power consumption per 100 kilometers calculation module 23, used to calculate the power consumption per 100 kilometers of the target commercial vehicle in pure electric mode based on the corrected first power consumption and the first driving mileage of the target commercial vehicle in pure electric mode; and a second power consumption test module 24, used to test the second power consumption of the target commercial vehicle in a hybrid mode driving cycle; wherein, hybrid mode The first module represents the total power consumption of the target commercial vehicle, which is jointly supplied by the energy storage battery and the fuel cell. The second power consumption represents the power output of the energy storage battery in the hybrid model. The second power consumption correction module 25 is used to correct the second power consumption based on the operating parameters of the target commercial vehicle in the hybrid mode, and obtain the corrected second power consumption. The hydrogen consumption per 100 kilometers calculation module 26 is used to calculate the hydrogen consumption per 100 kilometers of the target commercial vehicle in the hybrid mode based on the corrected second power consumption, the power consumption per 100 kilometers of the target commercial vehicle in the pure electric mode, the second driving range of the target commercial vehicle in the hybrid mode, and the hydrogen fuel consumption. The driving range calculation module 27 is used to calculate the total driving range of the target commercial vehicle based on the power consumption per 100 kilometers of the target commercial vehicle in the pure electric mode and the hydrogen consumption per 100 kilometers of the target commercial vehicle in the hybrid mode, the total power in the energy storage battery, and the total hydrogen fuel in the fuel cell.

[0076] The application provides a fuel cell commercial vehicle driving range prediction device. A first power consumption of a target commercial vehicle in a driving cycle under a pure electric mode is tested by a first power consumption test module 21. The target commercial vehicle comprises an energy storage battery and a fuel cell, and the pure electric mode means that the energy storage battery outputs power alone for the target commercial vehicle to drive. A first power consumption correction module 22 corrects the first power consumption based on operating parameters of the target commercial vehicle under the pure electric mode, and obtains a corrected first power consumption. A 100-kilometer power consumption calculation module 23 calculates 100-kilometer power consumption of the target commercial vehicle under the pure electric mode based on the corrected first power consumption and a first driving range of the target commercial vehicle under the pure electric mode. A second power consumption test module 24 tests a second power consumption of the target commercial vehicle in the driving cycle under a hybrid mode. The hybrid mode means that the energy storage battery and the fuel cell output power together for the target commercial vehicle to drive, and the second power consumption means power output by the energy storage battery under the hybrid mode. A second power consumption correction module 25 corrects the second power consumption based on operating parameters of the target commercial vehicle under the hybrid mode, and obtains a corrected second power consumption. A 100-kilometer hydrogen consumption calculation module 26 calculates 100-kilometer hydrogen consumption of the target commercial vehicle under the hybrid mode based on the corrected second power consumption, the 100-kilometer power consumption of the target commercial vehicle under the pure electric mode, a second driving range of the target commercial vehicle under the hybrid mode, and hydrogen fuel consumption. A driving range calculation module 27 calculates a total driving range of the target commercial vehicle based on the 100-kilometer power consumption of the target commercial vehicle under the pure electric mode and the 100-kilometer hydrogen consumption of the target commercial vehicle under the hybrid mode, total power in the energy storage battery, and total hydrogen fuel in the fuel cell. That is, the power consumption of the target commercial vehicle under the pure electric mode and the power consumption of the target commercial vehicle under the hybrid mode are tested, the 100-kilometer power consumption under the pure electric mode and the 100-kilometer hydrogen consumption under the hybrid mode are comprehensively calculated, the total driving range is calculated according to the total power in the energy storage battery and the total hydrogen fuel in the fuel cell, so that the total driving range of the target commercial vehicle that can be driven under a non-full-hydrogen full-electric state is calculated, the test process is simplified, the test cost is reduced, and the test efficiency is improved.

[0077] In an embodiment, the first power consumption correction module 22 can be further configured to calculate a first demand power of the target commercial vehicle under the pure electric mode based on the operating parameters of the target commercial vehicle under the pure electric mode, calculate a first corrected power of the target commercial vehicle under the pure electric mode based on the first demand power, and correct the first power consumption based on the first corrected power to obtain the corrected first power consumption.

[0078] In an embodiment, the calculation formula of the first demand power is as follows:

[0079] ;

[0080] wherein, P 1 is the first demand power, K 1, k 1 is a pre-set constant, mmass of the target commercial vehicle, a 1 is an acceleration in the pure electric mode, v 1 is a vehicle speed in the pure electric mode, f rl1 is a resistance correction constant in the pure electric mode, g is a gravitational acceleration, is an angle correction constant in the pure electric mode.

[0081] In an embodiment, the second electric quantity correction module 25 can be further configured to: calculate a second demand power of the target commercial vehicle in the hybrid mode based on operating parameters of the target commercial vehicle in the hybrid mode; calculate a second corrected electric quantity of the target commercial vehicle in the hybrid mode based on the second demand power; and correct the second electric consumption based on the second corrected electric quantity to obtain a corrected second electric consumption.

[0082] In an embodiment, a calculation formula of the second demand power is as follows:

[0083] ;

[0084] wherein, P 2 is a first demand power, K 2, k 2 is a pre-set constant, m mass of the target commercial vehicle, a 2 is an acceleration in the pure electric mode, v 2 is a vehicle speed in the pure electric mode, f rl2 is a resistance correction constant in the pure electric mode, g is a gravitational acceleration, is an angle correction constant in the pure electric mode.

[0085] In an embodiment, the hundred-kilometer hydrogen consumption calculation module 26 can be further configured to: calculate a fuel cell contribution mileage in the hybrid mode based on the corrected second electric consumption, a hundred-kilometer electric consumption of the target commercial vehicle in the pure electric mode, and a second driving mileage of the target commercial vehicle in the hybrid mode; and calculate a hundred-kilometer hydrogen consumption of the target commercial vehicle in the hybrid mode based on the fuel cell contribution mileage in the hybrid mode and a hydrogen fuel consumption of the fuel cell in the hybrid mode.

[0086] In an embodiment, the cruising range calculation module 27 can be further configured to: calculate a pure electric cruising range of the target commercial vehicle based on the hundred-kilometer electric consumption of the target commercial vehicle in the pure electric mode and a total electric quantity in the energy storage battery; calculate a hybrid cruising range of the target commercial vehicle based on the hundred-kilometer hydrogen consumption of the target commercial vehicle in the hybrid mode and a total hydrogen fuel quantity of the fuel cell; and calculate a total cruising range of the target commercial vehicle based on the pure electric cruising range and the hybrid cruising range.

[0087] Below, an electronic device according to embodiments of the present application will be described with reference to Figure 3 The electronic device can be either one or both of the first and second devices, or a stand-alone device independent of them, which can communicate with the first and second devices to receive the acquired input signals therefrom.

[0088] Figure 3 A block diagram of an electronic device according to embodiments of the present application is illustrated.

[0089] As Figure 3 shown, the electronic device 10 includes one or more processors 11 and a memory 12.

[0090] The processor 11 can be a central processing unit (CPU) or other form of processing unit having data processing and / or instruction executing capabilities, and can control other components in the electronic device 10 to perform desired functions.

[0091] The memory 12 can include one or more computer program products that can include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory, for example, can include random access memory (RAM), cache memory, and / or the like. The non-volatile memory, for example, can include read only memory (ROM), hard disk, flash memory, and / or the like. One or more computer program instructions can be stored on the computer-readable storage media, which the processor 11 can execute to implement the methods of the embodiments of the present application described above and / or other desired functions. Various contents such as input signals, signal components, noise components, and the like can also be stored in the computer-readable storage media.

[0092] In one example, the electronic device 10 can further include an input device 13 and an output device 14, which are interconnected through a bus system and / or other forms of connection mechanisms (not shown).

[0093] When the electronic device is a stand-alone device, the input device 13 can be a communication network connector for receiving the acquired input signals from the first and second devices.

[0094] In addition, the input device 13 can further include, for example, a keyboard, a mouse, and the like.

[0095] The output device 14 can output various information including the determined distance information, direction information, and the like, to the outside. The output device 14 can include, for example, a display, a speaker, a printer, a communication network and a remote output device connected thereto, and the like.

[0096] Of course, in order to simplify, Figure 3 Only some of the components of the electronic device 10 related to the present application are shown in the figure, and components such as buses, input / output interfaces, and the like are omitted. In addition to these, the electronic device 10 can include any other appropriate components according to the specific application.

[0097] In addition to the methods and devices described above, an embodiment of the present application can also be a computer program product including computer program instructions that, when executed by a processor, cause the processor to perform steps of the methods according to various embodiments of the present application described in the above "Exemplary Methods" section of the specification.

[0098] The computer program product can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++, etc., and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device or entirely on the remote computing device or server.

[0099] In addition, an embodiment of the present application can also be a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, cause the processor to perform steps of the methods according to various embodiments of the present application described in the above "Exemplary Methods" section of the specification.

[0100] The computer readable storage medium can be any combination of one or more non-transitory media. The non-transitory medium can be a non-transitory signal medium or a non-transitory storage medium. The non-transitory storage medium can include, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or any suitable combination of the above. More specific examples (a non-exhaustive list) of the non-transitory storage medium include an electrical connection having one or more wires, a portable disc, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0101] The above describes the basic principles of the present application in combination with specific embodiments, but it needs to be pointed out 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 example 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.

[0102] 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 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, mean "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.

[0103] It also needs to be pointed out 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.

[0104] 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 intended to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0105] 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 variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A method for predicting the driving range of fuel cell commercial vehicles, characterized in that, include: The test involves the first power consumption of a target commercial vehicle operating in pure electric mode during a cycle. The target commercial vehicle includes an energy storage battery and a fuel cell, and the pure electric mode indicates that the energy storage battery alone outputs power to power the target commercial vehicle. Based on the operating parameters of the target commercial vehicle in pure electric mode, the first power consumption is corrected to obtain the corrected first power consumption; Based on the corrected first power consumption and the first driving mileage of the target commercial vehicle in pure electric mode, calculate the power consumption per 100 kilometers of the target commercial vehicle in pure electric mode; The test measures the second power consumption of the target commercial vehicle in a hybrid mode driving cycle; wherein, the hybrid mode means that the energy storage battery and the fuel cell jointly output power to power the target commercial vehicle, and the second power consumption means the power output of the energy storage battery in the hybrid mode; Based on the operating parameters of the target commercial vehicle in hybrid mode, the second power consumption is corrected to obtain the corrected second power consumption; Based on the corrected second power consumption, the power consumption per 100 kilometers of the target commercial vehicle in pure electric mode, the second driving range of the target commercial vehicle in hybrid mode, and the hydrogen fuel consumption, the hydrogen consumption per 100 kilometers of the target commercial vehicle in hybrid mode is calculated. The total driving range of the target commercial vehicle is calculated based on the electric consumption per 100 kilometers in pure electric mode and the hydrogen consumption per 100 kilometers in hybrid mode, the total amount of electricity in the energy storage battery and the total amount of hydrogen fuel in the fuel cell. The step of correcting the first power consumption based on the operating parameters of the target commercial vehicle in pure electric mode to obtain the corrected first power consumption includes: Based on the operating parameters of the target commercial vehicle in pure electric mode, calculate the first required power of the target commercial vehicle in pure electric mode; Calculate the first corrected power level of the target commercial vehicle in pure electric mode based on the first required power. The first power consumption is corrected based on the first corrected power consumption to obtain the corrected first power consumption. The formula for calculating the first required power is as follows: ； in, P 1 represents the primary power requirement. K 1. k 1 is a pre-set constant. m For the quality of target commercial vehicles, a 1 represents acceleration in pure electric mode. v 1 represents the vehicle speed in pure electric mode. f rl1 This is the drag correction constant in pure electric mode. g It is the acceleration due to gravity. This is the angle correction constant for pure electric mode; The step of correcting the first power consumption based on the first corrected power consumption to obtain the corrected first power consumption includes: Calculate the difference between the first corrected power consumption and the first power consumption. If the difference is greater than a preset value, then the average of the first corrected power consumption and the first power consumption is taken as the corrected first power consumption.

2. The method for predicting the driving range of a fuel cell commercial vehicle according to claim 1, characterized in that, The step of correcting the second power consumption based on the operating parameters of the target commercial vehicle in hybrid mode to obtain the corrected second power consumption includes: Based on the operating parameters of the target commercial vehicle in hybrid mode, calculate the second required power of the target commercial vehicle in hybrid mode; The second corrected energy level of the target commercial vehicle in hybrid mode is calculated based on the second required power. The second power consumption is corrected based on the second corrected power consumption to obtain the corrected second power consumption.

3. The method for predicting the driving range of fuel cell commercial vehicles according to claim 2, characterized in that, The calculation of the second power demand of the target commercial vehicle in hybrid mode based on its operating parameters in hybrid mode includes: The formula for calculating the second required power is as follows: ； in, P 2 represents the second required power. K 2. k 2 is a pre-set constant. m For the quality of target commercial vehicles, a 2 represents acceleration in pure electric mode. v 2 represents the vehicle speed in pure electric mode. f rl2 This is the drag correction constant in pure electric mode. g It is the acceleration due to gravity. This is the angle correction constant in pure electric mode.

4. The method for predicting the driving range of a fuel cell commercial vehicle according to claim 1, characterized in that, The calculation of the hydrogen consumption per 100 kilometers of the target commercial vehicle in hybrid mode, based on the corrected second power consumption, the power consumption per 100 kilometers of the target commercial vehicle in pure electric mode, the second driving range of the target commercial vehicle in hybrid mode, and the hydrogen fuel consumption, includes: Based on the corrected second power consumption, the power consumption per 100 kilometers of the target commercial vehicle in pure electric mode, and the second driving range of the target commercial vehicle in hybrid mode, the mileage contributed by the fuel cell in hybrid mode is calculated. Based on the mileage contributed by the fuel cell in hybrid mode and the hydrogen fuel consumption of the fuel cell in hybrid mode, the hydrogen consumption per 100 kilometers of the target commercial vehicle in hybrid mode is calculated.

5. The method for predicting the driving range of a fuel cell commercial vehicle according to claim 1, characterized in that, The calculation of the total driving range of the target commercial vehicle based on its energy consumption per 100 kilometers in pure electric mode and hydrogen consumption per 100 kilometers in hybrid mode, the total amount of electricity in the energy storage battery, and the total amount of hydrogen fuel in the fuel cell includes: Based on the energy consumption per 100 kilometers of the target commercial vehicle in pure electric mode and the total amount of energy in the energy storage battery, the pure electric driving range of the target commercial vehicle is calculated. Based on the hydrogen consumption per 100 kilometers of the target commercial vehicle in hybrid mode and the total amount of hydrogen fuel in the fuel cell, calculate the hybrid driving range of the target commercial vehicle. Based on the pure electric driving range and the hybrid driving range, the total driving range of the target commercial vehicle is calculated.

6. A fuel cell commercial vehicle range prediction device, characterized in that, include: The first power consumption test module is used to test the first power consumption of the target commercial vehicle in a pure electric mode driving cycle; wherein, the target commercial vehicle includes an energy storage battery and a fuel cell, and the pure electric mode means that the energy storage battery outputs power to power the target commercial vehicle. The first power consumption correction module is used to correct the first power consumption based on the operating parameters of the target commercial vehicle in pure electric mode, so as to obtain the corrected first power consumption. The power consumption per 100 kilometers calculation module is used to calculate the power consumption per 100 kilometers of the target commercial vehicle in pure electric mode based on the corrected first power consumption and the first driving distance of the target commercial vehicle in pure electric mode. The second power consumption test module is used to test the second power consumption of the target commercial vehicle in a hybrid mode driving cycle; wherein, the hybrid mode means that the energy storage battery and the fuel cell jointly output power to power the target commercial vehicle, and the second power consumption means the power output by the energy storage battery in the hybrid mode; The second power consumption correction module is used to correct the second power consumption based on the operating parameters of the target commercial vehicle in hybrid mode, so as to obtain the corrected second power consumption. The hydrogen consumption per 100 kilometers calculation module is used to calculate the hydrogen consumption per 100 kilometers of the target commercial vehicle in hybrid mode based on the corrected second power consumption, the power consumption per 100 kilometers of the target commercial vehicle in pure electric mode, the second driving range of the target commercial vehicle in hybrid mode, and the hydrogen fuel consumption. The driving range calculation module is used to calculate the total driving range of the target commercial vehicle based on the electric consumption per 100 kilometers in pure electric mode and the hydrogen consumption per 100 kilometers in hybrid mode, the total amount of electricity in the energy storage battery and the total amount of hydrogen fuel in the fuel cell. The first power correction module is further configured as follows: Based on the operating parameters of the target commercial vehicle in pure electric mode, calculate the first required power of the target commercial vehicle in pure electric mode; Calculate the first corrected power level of the target commercial vehicle in pure electric mode based on the first required power. The first power consumption is corrected based on the first corrected power consumption to obtain the corrected first power consumption. The formula for calculating the first required power is as follows: ； in, P 1 represents the primary power requirement. K 1. k 1 is a pre-set constant. m For the quality of target commercial vehicles, a 1 represents acceleration in pure electric mode. v 1 represents the vehicle speed in pure electric mode. f rl1 This is the drag correction constant in pure electric mode. g It is the acceleration due to gravity. This is the angle correction constant for pure electric mode; The first power correction module is further configured as follows: Calculate the difference between the first corrected power consumption and the first power consumption. If the difference is greater than a preset value, then the average of the first corrected power consumption and the first power consumption is taken as the corrected first power consumption.

7. A computer-readable storage medium, characterized in that, The storage medium stores a computer program for performing the method described in any one of claims 1-5.

8. An electronic device, characterized in that, include: processor; Memory used to store the processor's executable instructions; The processor is used to execute the method described in any one of claims 1-5.

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