Constant-speed fuel consumption testing method and device of vehicle

Abstract

The invention relates to the technical field of automobile testing, in particular to a constant-speed fuel consumption testing method and device for a vehicle, and the method comprises the steps: determining a first target value of the residual electric quantity percentage of a target hybrid electric vehicle when the target hybrid electric vehicle is driven at a target speed; the method comprises the following steps: after a charged target hybrid electric vehicle runs at a target speed at a constant speed and a driving mode is switched from a pure electric mode to a hybrid power mode, acquiring a driving mileage, driving time and fuel consumption when a real-time value of a residual electric quantity percentage of the target hybrid electric vehicle reaches a first target value of the residual electric quantity percentage; and calculating the constant-speed fuel consumption of the target hybrid electric vehicle at the target vehicle speed according to the driving mileage, the driving time and the fuel consumption. Therefore, the problem that the constant-speed fuel consumption calculation accuracy of the hybrid electric vehicle is poor due to the fact that the constant-speed fuel consumption measurement method in the related technology does not consider the influence of the vehicle driving mode on the fuel consumption in the constant-speed driving process is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile testing, and particularly relates to a constant speed fuel consumption test method and device for a vehicle. BACKGROUND

[0002] The constant speed fuel consumption test is one of important methods for evaluating fuel economy of a vehicle, and is mainly used for measuring fuel consumption of the vehicle at a constant speed, and has important reference value in scenes such as high-speed cruising energy efficiency evaluation.

[0003] In the related art, the test method of the constant speed fuel consumption is generally to make a test vehicle travel at a target vehicle speed at a constant speed for a fixed distance, so as to calculate by using a traditional fuel consumption calculation method.

[0004] However, the constant speed fuel consumption measurement method in the related art is more suitable for a vehicle only equipped with an internal combustion engine, and for a hybrid electric vehicle changing a driving mode of the vehicle along with development of automobile electrification, the influence of the driving mode of the vehicle on fuel consumption in the process of constant speed driving is not considered, which easily leads to poor accuracy of the calculated constant speed fuel consumption of the hybrid electric vehicle, and needs to be solved urgently. SUMMARY

[0005] The present application provides a constant speed fuel consumption test method and device for a vehicle, to solve the problem that the constant speed fuel consumption measurement method in the related art is more suitable for a vehicle only equipped with an internal combustion engine, and for a hybrid electric vehicle changing a driving mode of the vehicle along with development of automobile electrification, the influence of the driving mode of the vehicle on fuel consumption in the process of constant speed driving is not considered, which easily leads to poor accuracy of the calculated constant speed fuel consumption of the hybrid electric vehicle.

[0006] The first aspect of the present application provides a constant speed fuel consumption test method of a vehicle, comprising the following steps: obtaining a remaining battery percentage starting value when a driving mode of a target hybrid vehicle is switched from a pure electric mode to a hybrid mode during uniform driving of the target hybrid vehicle at a target vehicle speed, determining a remaining battery percentage first target value of the target hybrid vehicle according to the remaining battery percentage starting value; charging the target hybrid vehicle to a remaining battery percentage actual value reaching a remaining battery percentage second target value, obtaining a real-time value of the remaining battery percentage of the target hybrid vehicle during driving in the hybrid mode when the target hybrid vehicle after charging drives at the target vehicle speed and the driving mode of the target hybrid vehicle is switched from the pure electric mode to the hybrid mode; obtaining a driving distance, a driving time and a fuel consumption of the target hybrid vehicle during driving in the hybrid mode when the real-time value of the remaining battery percentage reaches the remaining battery percentage first target value, and calculating a constant speed fuel consumption of the target hybrid vehicle at the target vehicle speed according to the driving distance, the driving time and the fuel consumption.

[0007] Optionally, in an embodiment of the present application, the determining the remaining battery percentage first target value of the target hybrid vehicle according to the remaining battery percentage starting value comprises: determining an association rule between the remaining battery percentage starting value and the remaining battery percentage first target value according to a target test requirement; and determining the remaining battery percentage first target value according to the association rule and the remaining battery percentage starting value.

[0008] Optionally, in an embodiment of the present application, after the constant speed fuel consumption of the target hybrid vehicle at the target vehicle speed is calculated according to the driving distance, the driving time and the fuel consumption, the method further comprises: verifying whether an instantaneous vehicle speed during the uniform driving process meets a target error range and verifying whether an average vehicle speed during the uniform driving process meets a target function to obtain verification results of the instantaneous vehicle speed and the average vehicle speed; and determining a credibility of the constant speed fuel consumption based on the verification results of the instantaneous vehicle speed and the average vehicle speed.

[0009] Optionally, in an embodiment of the present application, before verifying whether the average vehicle speed during the uniform driving process meets the target function, the method further comprises: determining the target function according to the target vehicle speed, the driving distance and the driving time.

[0010] Optionally, in an embodiment of the present application, the calculation formula of the constant speed fuel consumption is: C = 100 * Ci / S Wherein, C represents the fuel consumption calculated at the target vehicle speed V, with the unit of liters per 100 kilometers (L / 100km); Ci represents the fuel consumption before and after the trigger is triggered, with the unit of milliliters (mL); S represents the mileage of the vehicle before and after the trigger is triggered, with the unit of meters (m).

[0011] The second aspect embodiment of the present application provides a constant-speed fuel consumption testing device for a vehicle, comprising: an acquisition module, configured to acquire a remaining battery percentage starting value when a target hybrid vehicle switches from a pure electric mode to a hybrid mode during uniform driving at a target vehicle speed, to determine a first target value of the remaining battery percentage of the target hybrid vehicle according to the remaining battery percentage starting value; a driving module, configured to charge the target hybrid vehicle to a second target value of the remaining battery percentage, to acquire a real-time value of the remaining battery percentage of the target hybrid vehicle during driving in the hybrid mode after the target hybrid vehicle is uniformly driven at the target vehicle speed after charging and the driving mode of the target hybrid vehicle is switched from the pure electric mode to the hybrid mode; and a calculation module, configured to acquire a driving mileage, a driving time and a fuel consumption of the target hybrid vehicle during driving in the hybrid mode when the real-time value of the remaining battery percentage reaches the first target value of the remaining battery percentage, to calculate a constant-speed fuel consumption of the target hybrid vehicle at the target vehicle speed according to the driving mileage, the driving time and the fuel consumption.

[0012] Optionally, in an embodiment of the present application, the acquisition module comprises: a determination unit, configured to determine an association rule between the remaining battery percentage starting value and the first target value of the remaining battery percentage according to a target testing requirement; and a generation unit, configured to determine the first target value of the remaining battery percentage according to the association rule and the remaining battery percentage starting value.

[0013] Optionally, in an embodiment of the present application, further comprising: a verification module, configured to verify whether an instantaneous vehicle speed during the uniform driving meets a target error range and whether an average vehicle speed during the uniform driving meets a target function after calculating the constant-speed fuel consumption of the target hybrid vehicle at the target vehicle speed according to the driving mileage, the driving time and the fuel consumption, to obtain verification results of the instantaneous vehicle speed and the average vehicle speed; and a first determination module, configured to determine a credibility of the constant-speed fuel consumption based on the verification results of the instantaneous vehicle speed and the average vehicle speed.

[0014] Optionally, in an embodiment of the present application, further comprising a second determining module configured to determine the target function according to the target vehicle speed, the driving distance and the driving time before verifying whether the average vehicle speed during the uniform driving meets the target function.

[0015] Optionally, in an embodiment of the present application, the calculation formula of the constant-speed fuel consumption is: C = 100 * Ci / S wherein C represents the fuel consumption calculated at the target vehicle speed V, in units of liters per 100 kilometers (L / 100km); Ci represents the fuel consumption before and after the trigger is triggered, in units of milliliters (mL); and S represents the distance traveled by the vehicle before and after the trigger is triggered, in units of meters (m).

[0016] The third aspect embodiment of the present application provides an electronic device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the constant-speed fuel consumption test method of the vehicle as described in the above embodiments.

[0017] The fourth aspect embodiment of the present application provides a computer readable storage medium, which stores a computer program, and the program is executed by a processor to implement the constant-speed fuel consumption test method of the vehicle as described above.

[0018] The fifth aspect embodiment of the present application provides a computer program product, comprising a computer program, and the computer program is executed to implement the constant-speed fuel consumption test method of the vehicle as described above.

[0019] The embodiment of the application can consume the second target value of the percentage of the remaining electric quantity of the target hybrid electric vehicle to the first target value of the percentage of the remaining electric quantity of the target hybrid electric vehicle through the uniform speed driving of the target hybrid electric vehicle in the pure electric mode, charge the real-time value of the percentage of the remaining electric quantity of the target hybrid electric vehicle to the first target value of the percentage of the remaining electric quantity of the target hybrid electric vehicle through the uniform speed driving of the target hybrid electric vehicle in the hybrid mode, and finally calculate the constant speed fuel consumption of the target hybrid electric vehicle at the target speed in the process of the uniform speed driving in the hybrid mode. Thus, the characteristics of the battery pack electric quantity changing constantly in the process of the uniform speed driving of the hybrid electric vehicle are realized, the test process of consuming electricity first and then supplementing electricity by the engine is used to constrain the battery pack electric quantity change in the test process, the battery pack SOC before and after the test is kept unchanged, and more accurate test results of the constant speed fuel consumption of the hybrid electric vehicle are obtained. The problems such as the constant speed fuel consumption measurement method in the related art being more suitable for vehicles only provided with internal combustion engines, and the influence of the driving mode of the vehicle on the fuel consumption in the process of the uniform speed driving not being considered for the hybrid electric vehicle changing the driving mode of the vehicle with the development of the electrification of the vehicle, and the constant speed fuel consumption of the hybrid electric vehicle being calculated with poor accuracy are solved.

[0020] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which: Figure 1 A flowchart of a constant speed fuel consumption test method of a vehicle according to an embodiment of the application is provided. Figure 2 A test process vehicle CAN data schematic diagram of an embodiment of the application is provided. Figure 3 A test node schematic diagram of an embodiment of the application is provided. Figure 4 A structural schematic diagram of a constant speed fuel consumption test device of a vehicle according to an embodiment of the application is provided. Figure 5 A structural schematic diagram of an electronic device according to an embodiment of the application is provided.

[0022] Reference signs: 10, a constant speed fuel consumption test device of a vehicle; 100, an acquisition module; 200, a driving module; and 300, a calculation module; 501, a memory; 502, a processor; and 503, a communication interface. DETAILED DESCRIPTION

[0023] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0024] The vehicle's constant speed fuel consumption test method and device of the embodiments of the present application are described below with reference to the accompanying drawings. The constant speed fuel consumption measurement method in the related art mentioned in the above background art is more suitable for vehicles equipped only with internal combustion engines. For hybrid electric vehicles that change the driving mode of the vehicle with the development of automobile electrification, the influence of the driving mode of the vehicle on the fuel consumption during constant speed driving is not considered, which easily leads to the problem of poor accuracy of the calculated constant speed fuel consumption of the hybrid electric vehicle. The present application provides a vehicle's constant speed fuel consumption test method. In the method, the second target value of the remaining battery percentage of the target hybrid vehicle is consumed to the first target value of the remaining battery percentage through the target hybrid vehicle's constant speed driving in pure electric mode, and the real-time value of the remaining battery percentage of the target hybrid vehicle is charged to the first target value of the remaining battery percentage through the target hybrid vehicle's constant speed driving in hybrid mode. Finally, the constant speed fuel consumption of the target hybrid vehicle at the target vehicle speed is calculated based on the driving distance, driving time and fuel consumption during the constant speed driving in hybrid mode. Thus, the characteristics of the battery pack power change during the constant speed driving of the hybrid electric vehicle are realized. Through the test process of consuming electricity first and then using the engine to start the power supply, the battery pack power change during the test process is constrained, the battery pack SOC before and after the test is kept unchanged, and more accurate hybrid electric vehicle constant speed fuel consumption test results are obtained. The constant speed fuel consumption measurement method in the related art is more suitable for vehicles equipped only with internal combustion engines. For hybrid electric vehicles that change the driving mode of the vehicle with the development of automobile electrification, the influence of the driving mode of the vehicle on the fuel consumption during constant speed driving is not considered, which easily leads to the problem of poor accuracy of the calculated constant speed fuel consumption of the hybrid electric vehicle.

[0025] Specifically, Figure 1 A flowchart of a vehicle's constant speed fuel consumption test method provided by the embodiments of the present application.

[0026] As Figure 1 shown, the vehicle's constant speed fuel consumption test method includes the following steps: In step S101, when the target hybrid vehicle is driving at a target vehicle speed, the starting value of the remaining battery percentage when the driving mode of the target hybrid vehicle is switched from pure electric mode to hybrid mode is obtained, so as to determine the first target value of the remaining battery percentage of the target hybrid vehicle according to the starting value of the remaining battery percentage.

[0027] It can be understood that the target hybrid vehicle can be understood as a specific constant fuel consumption test object here, that is, the vehicle type of the test object is a hybrid vehicle. The target speed can be understood as a fixed speed preset before the test for maintaining constant speed driving (meeting the standard speed of constant fuel consumption test), for example, 60 km / h, 90 km / h, etc. The specific target hybrid vehicle and target speed can be set or adjusted by a person skilled in the art according to the actual situation, and the embodiments of the present application are only exemplary and are not specifically limited.

[0028] The remaining percentage of the starting value of the electric quantity can be understood as the instantaneous SOC (State of Charge, percentage of remaining electric quantity) value of the target hybrid mode during constant speed driving, and the driving mode is switched from pure electric mode to hybrid mode as the vehicle consumes electricity. The process.

[0029] For example, in the test, the vehicle drives at a constant speed of 60 km / h, the engine starts when the SOC decreases from 25% to 23%, and the driving mode of the vehicle is switched from pure electric mode to HEV mode (hybrid mode). 23% is the starting value of the percentage of the remaining electric quantity.

[0030] The first target value of the percentage of the remaining electric quantity can be understood as a preset SOC value calculated by a certain fixed rule (such as increasing a fixed percentage) with the starting value of the percentage of the remaining electric quantity as the reference, which can be used as a certain control threshold in the subsequent fuel consumption test. For example, the first target value of the percentage of the remaining electric quantity can be the starting value of the percentage of the remaining electric quantity + 2%, etc.

[0031] Additionally, before the formal test, that is, before the target hybrid vehicle drives at a constant speed of the target speed, the embodiments of the present application can also make certain rule settings for the target hybrid vehicle and road conditions to make the test more accurate, including but not limited to the following: (1) Road weather conditions: The constant fuel consumption test in the embodiments of the present application is obtained through the driving process of the vehicle (in the following embodiment description, the vehicle refers to the (target) hybrid vehicle) on the actual road, so the road should be dry, the road surface can have wet traces, but there should be no any water, the average wind speed is less than 3 m / s, the gust should not exceed 5 m / s, and the test road must be a complete loop to avoid the influence of road factors on the test results.

[0032] (2) Vehicle requirements: vehicle run-in, vehicle loading, tire confirmation, vehicle preheating, etc. according to GB / T 12545.1: Vehicle run-in: the test vehicle should be run-in before the constant speed fuel consumption test, and the run-in should be at least 3000km; Vehicle loading: the test mass of the vehicle is the curb mass of the vehicle (the empty basic weight of the vehicle when it leaves the factory) plus 180kg, and when the 50% load mass of the vehicle (the maximum weight limit allowed by the vehicle design to carry, also called maximum load mass) is greater than 180kg, the test mass of the vehicle is the curb mass of the vehicle plus 50% of the load mass (including the mass of the measurement personnel and instruments); Tire confirmation: the tires should be selected as the type required by the manufacturer as original parts, and inflated according to the tire inflation pressure corresponding to the maximum test load and the highest test speed recommended by the manufacturer, and the tires can be run-in with the vehicle or the pattern depth should be between 50%-90% of the initial pattern depth; Vehicle preheating: before the test measurement, the hybrid vehicle should be preheated sufficiently under the condition of engine starting, and reach the normal working condition, and before each measurement, the vehicle should drive at least 5km on the test road at a speed as close as possible to the test speed (target vehicle speed) (the speed should not differ by more than ±5% from the test speed in any case) to maintain the temperature stability of the vehicle.

[0033] (3) Test equipment installation: install fuel consumption meters, GPS data collector equipment, triggers, vehicle CAN data acquisition equipment, etc. on the vehicle to collect various data (such as SOC values at various times) during vehicle driving.

[0034] The embodiment of the present application can determine the SOC critical point of engine starting by determining the remaining power percentage starting value, avoid test deviation caused by ambiguous starting time; At the same time, the embodiment of the present application can determine the first target value of the remaining power percentage based on the remaining power percentage starting value, so as to establish a unified and accurate control standard for the subsequent test process, which helps to ensure that the SOC change range of each test is consistent, and the finally measured constant speed fuel consumption data is more accurate and comparable.

[0035] Optionally, in an embodiment of the present application, the first target value of the remaining power percentage of the target hybrid vehicle is determined according to the remaining power percentage starting value, comprising: determining the association rule between the remaining power percentage starting value and the first target value of the remaining power percentage according to the target test requirement; determining the first target value of the remaining power percentage according to the association rule and the remaining power percentage starting value.

[0036] According to the related description of other embodiments, the first target value of the remaining battery percentage can be understood as a pre-set SOC value calculated based on the starting value of the remaining battery percentage as a reference by a certain fixed rule (such as increasing a fixed percentage), which can be used as a certain control threshold in the subsequent fuel consumption test.

[0037] In actual implementation, the present application can determine the association rule between the starting value of the remaining battery percentage and the first target value of the remaining battery percentage according to the target test requirement of the constant speed fuel consumption test, and then determine the first target value of the remaining battery percentage according to the association rule and the remaining battery percentage.

[0038] The target test requirement can be understood as the specific purpose to be achieved or the condition to be met in the test, and different test requirements can correspond to different association rules.

[0039] The association rule can be understood as the calculation rule or logic between the starting value of the remaining battery percentage and the first target value of the remaining battery percentage, for example, the starting value of the remaining battery percentage + 2% in the previous embodiment, which can be determined by the target test requirement in the present embodiment, so as to ensure that the first target value can match the test purpose.

[0040] For example, when the target test requirement is to test the constant speed fuel consumption in a low temperature environment, the low temperature will cause the battery output power to decrease, and if the first target value of the remaining battery percentage is too low (the remaining battery percentage is close to the starting value), the motor power may be insufficient, so the SOC interval needs to be controlled in advance to ensure smooth power connection when the engine starts.

[0041] At this time, the association rule can be set as: the first target value of the remaining battery percentage = the starting value of the remaining battery percentage + 10%, for example, when the vehicle is uniformly driven at 90km / h, the starting value of the remaining battery percentage when the engine starts in a low temperature environment is 28%, and the first target value of the remaining battery percentage = 28% + 10% = 38%. Therefore, the test cycle can be maintained in the SOC interval of 38% to 28%, and the SOC is always maintained at a high level, avoiding the power discontinuity caused by insufficient battery power in a low temperature environment, ensuring that the vehicle can maintain the target speed when the engine starts, and avoiding the speed fluctuation affecting the accuracy of the fuel consumption data.

[0042] When the target test requirement is rapid batch testing and shortening the single vehicle test time, the SOC fluctuation interval needs to be reduced to reduce the driving mileage of single test to improve the overall test efficiency.

[0043] At this time, the association rule can be set as the first target value of the remaining battery percentage = the starting value of the remaining battery percentage + 0.5% (a small difference, compressing the SOC fluctuation range). For example, when the vehicle travels at a constant speed of 80 km / h, the starting value is 26%, and the first target value = 26% + 0.5% = 26.5%.

[0044] Thus, it can be ensured that the SOC only fluctuates in a small interval of 26.5% to 26%, and the driving distance of the vehicle from the target value to the starting value is greatly shortened, which can be efficiently completed.

[0045] It should be noted that the association rule between the first target value of the remaining battery percentage and the starting value of the remaining battery percentage can be set or adjusted by a person skilled in the art according to the actual situation, for example, it can also be the starting value of the remaining battery percentage + 2%, the starting value of the remaining battery percentage + 3%, the starting value of the remaining battery percentage x 102%, the starting value of the remaining battery percentage x 103%, and the like. The present embodiment is only exemplary and is not limited.

[0046] The present embodiment can design different association rules for different test requirements, so that the test is more scene-adaptive and data-effective, and ensures that the SOC of each test can be controlled to accurately match the test focus, such as small fluctuation test short-distance fuel consumption, large fluctuation adaptation low temperature, etc., thereby meeting the constant speed fuel consumption analysis requirements in different dimensions.

[0047] In step S102, the target hybrid electric vehicle is charged to the actual value of the remaining battery percentage of the target hybrid electric vehicle reaching the second target value of the remaining battery percentage, and the target hybrid electric vehicle travels at a target speed after charging, and the driving mode of the target hybrid electric vehicle is switched from the pure electric mode to the hybrid power mode, and the real-time value of the remaining battery percentage of the target hybrid electric vehicle in the hybrid power mode driving process is obtained.

[0048] In some embodiments, during the test process, the power of the target hybrid electric vehicle is consumed by uniform speed driving when the driving mode of the target hybrid electric vehicle is switched from the pure electric mode to the hybrid power mode, and the present application can stop driving at this time. The target hybrid electric vehicle is charged until the actual value of the remaining current percentage of the target hybrid electric vehicle reaches the second target value of the remaining battery percentage.

[0049] The actual value of the remaining battery percentage can be understood as the actual remaining battery percentage of the battery after the target hybrid electric vehicle is actually charged, i.e. the SOC value actually displayed on the instrument panel after actual charging.

[0050] The second target value of the percentage of remaining power can be understood as a pre-set SOC value that the percentage of remaining power of the target hybrid vehicle after charging is expected to reach.

[0051] For example, the starting value of the percentage of remaining power is 30%, and the second target value of the percentage of remaining power is 40%. During the charging process, the actual value of the percentage of remaining power can be 30%, 31%, 32%, 33%,..., 40%, and the like. It should be noted that the specific second target value of the percentage of remaining power can be set or adjusted by a person skilled in the art according to the actual situation. For example, the second target value of the percentage of remaining power can be 10%-15% higher than the starting value of the percentage of remaining power. This is only an exemplary description in the embodiments of the present application, and is not specifically limited.

[0052] After charging the vehicle to the second target value of the percentage of remaining power, the embodiments of the present application can continue to drive the target hybrid vehicle at a target speed in a pure electric mode, and after the driving mode of the target hybrid vehicle is switched from the pure electric mode to the hybrid mode during the uniform speed driving process, the real-time value of the percentage of remaining power of the target hybrid vehicle during the driving process in the hybrid mode is continuously obtained, thereby preparing for subsequent calculation of constant speed fuel consumption.

[0053] The real-time value of the percentage of remaining power can be understood as the percentage of remaining power of the battery of the target hybrid vehicle that is monitored in real time after the target hybrid vehicle is switched to the hybrid mode, and can be used to track the dynamic change of the SOC of the target hybrid vehicle in the hybrid mode in real time.

[0054] The embodiments of the present application can set a certain second target value of the percentage of remaining power and charge the target hybrid vehicle to reach the target, thereby ensuring that the vehicle has sufficient power consumption and avoiding the inability to trigger the driving mode switching of the vehicle due to insufficient power. At the same time, the real-time value of the SOC of the target hybrid vehicle in the hybrid mode is obtained, which prepares for subsequent calculation of constant speed fuel consumption, verifies whether the SOC of the target hybrid vehicle changes as expected (such as whether it is stable and rebounds), ensures that the test process conforms to the pre-set logic, guarantees that the finally calculated constant speed fuel consumption is more accurate and reliable, and the test has repeatability.

[0055] In step S103, when the real-time value of the percentage of remaining power reaches the first target value of the percentage of remaining power, the driving distance, driving time, and fuel consumption of the target hybrid vehicle during the driving process in the hybrid mode are obtained, and the constant speed fuel consumption of the target hybrid vehicle at the target speed is calculated according to the driving distance, driving time, and fuel consumption. The formula for calculating the constant speed fuel consumption is: C=100*Ci / S Wherein, C represents the fuel consumption calculated at the target vehicle speed V, the unit is liters per 100 kilometers (L / 100km); Ci represents the fuel consumption before and after the trigger is triggered, the unit is milliliter (mL); S represents the mileage of the vehicle before and after the trigger is triggered, the unit is meter (m).

[0056] The person skilled in the art can understand that when the hybrid vehicle is switched from the pure electric mode to the hybrid mode, the driving of the vehicle will be changed from pure motor driving to motor plus engine driving, and the engine will charge the power battery while providing kinetic energy.

[0057] As a possible implementation manner, the embodiment of the application can obtain the real-time value of the remaining percentage of the target hybrid vehicle after the driving mode of the target hybrid vehicle is switched to the hybrid mode, at this time and in the following driving process, the target hybrid vehicle will continue to drive in the hybrid mode, and the power battery of the target hybrid vehicle will be continuously charged in the process of driving in the hybrid mode.

[0058] When the power battery of the target hybrid vehicle is charged by the engine to the real-time value of the remaining percentage of the power battery reaching the first target value of the remaining percentage of the power battery, the embodiment of the application can obtain the (cumulative) driving mileage, (cumulative) driving time and (cumulative) fuel consumption of the target hybrid vehicle in the hybrid mode driving process at this time (the real-time value of the remaining percentage of the power battery = the first target value of the remaining percentage of the power battery), so as to calculate the constant speed fuel consumption of the target hybrid vehicle at the target vehicle speed according to the driving mileage, driving time and fuel consumption obtained at this time.

[0059] Wherein, the calculation formula of the constant speed fuel consumption can be but not limited to represented as follows: C=100*Ci / S Wherein, C represents the fuel consumption calculated at the target vehicle speed V, the unit is liters per 100 kilometers (L / 100km); Ci represents the fuel consumption before and after the trigger is triggered, the unit is milliliter (mL); S represents the mileage of the vehicle before and after the trigger is triggered, the unit is meter (m).

[0060] That is, the embodiment of the application can make the target hybrid vehicle consume electricity first and then start the engine to charge after charging, keep the SOC of the battery pack unchanged before and after the test, and obtain the constant speed fuel consumption test result of the hybrid electric vehicle.

[0061] The embodiment of the present application can trigger the collection of constant speed fuel consumption calculation data through the unified node of reaching the first target value of the remaining battery percentage by the real-time value of the remaining battery percentage, thereby ensuring the benchmark consistency of fuel consumption calculation, i.e., strictly limiting the statistical range of driving mileage, driving time and fuel consumption to the range with the first target value of the remaining battery percentage as the closed-loop node, i.e., starting from the first target value of the remaining battery percentage, switching to the hybrid mode when the engine starts, and charging the battery while the vehicle is uniformly driving, in the driving process of the hybrid mode, the fuel consumed is only used to maintain the vehicle at the target speed, and not to charge the battery with additional power, because the SOC does not increase or decrease, thereby avoiding the interference of additional charging and discharging on fuel consumption, so that the calculated constant speed fuel consumption only corresponds to the uniform driving condition at the target speed; at the same time, the unified trigger node can also provide a unified test standard for the comparison of fuel consumption data of different test cycles or different vehicle models.

[0062] Optionally, in one embodiment of the present application, after calculating the constant speed fuel consumption of the target hybrid vehicle at the target speed according to the driving mileage, driving time and fuel consumption, it further includes: verifying whether the instantaneous speed in the uniform driving process meets the target error range, and verifying whether the average speed in the uniform driving process meets the target function, to obtain the verification results of the instantaneous speed and the average speed; determining the credibility of the constant speed fuel consumption based on the verification results of the instantaneous speed and the average speed.

[0063] In other embodiments, in order to guarantee the accuracy of the constant speed fuel consumption calculation result, the present application can but not limited to verify whether the instantaneous speed of the target hybrid vehicle in the uniform driving process (including but not limited to the uniform driving before charging, the uniform driving in pure electric mode after charging and the uniform driving in hybrid mode) meets the target error range, and at the same time, verify whether the average speed in the uniform driving process meets the target function, thereby determining the credibility of the constant speed fuel consumption based on the verification results of the instantaneous speed and the average speed.

[0064] Here, the target error range can be understood as a fluctuation interval that the instantaneous speed should meet, and when the instantaneous speed remains within the target error range, it indicates that the speed deviation is small during the uniform driving process, thereby ensuring that the driving state of the vehicle is close to the true uniform speed in the physical sense.

[0065] The target function can be understood as a pre-set constraint condition that the average speed needs to meet, which is mainly used to ensure that the overall speed of the entire test cycle is highly consistent with the target speed, thereby avoiding the distortion of fuel consumption data caused by long-term speed deviation.

[0066] For example, the present application can but not limited to set the target error range of the instantaneous speed as ±2m / s, i.e., wherein, target speed, instantaneous speed.

[0067] If the instantaneous speed during the constant speed driving process does not meet the target error range, for example, the instantaneous speed at a certain moment exceeds or is lower than the target speed by 2 m / s or more, the reliability of the constant speed fuel consumption calculation result is low, and retesting is needed.

[0068] Similarly, if the average speed during the constant speed driving process does not meet the target function, the reliability of the constant speed fuel consumption is also low, and retesting is still needed. That is, when either the instantaneous speed during the constant speed driving process does not meet the target error range or the average speed during the constant speed driving process does not meet the target function, the reliability of the constant speed fuel consumption calculation result is low, and retesting is needed.

[0069] The embodiments of the present application can ensure that the constant speed driving process has no short-time large fluctuation by verifying whether the instantaneous speed meets a certain error range, and ensure that the overall test working condition matches the target speed by verifying whether the average speed meets a certain function, thereby excluding the additional fuel consumption caused by non-constant speed driving (such as acceleration and deceleration) by combining the two, so that the calculated constant speed fuel consumption truly reflects the fuel economy of the vehicle at the target speed, avoids data distortion caused by speed deviation, and also provides a reliable basis for comparing fuel consumption data of different test cycles or different vehicle models.

[0070] Optionally, in an embodiment of the present application, before verifying whether the average speed during the constant speed driving process meets the target function, the method further includes: determining the target function according to the target speed, the driving distance, and the driving time.

[0071] Based on the related description of other embodiments, it can be understood that the present application can determine the reliability of the constant speed fuel consumption calculation result according to whether the average speed during the constant speed driving process meets the target function.

[0072] In some embodiments, the present application can but is not limited to determining the target function according to the driving distance and the driving time of the target hybrid electric vehicle in the hybrid electric mode driving process after charging and the target speed.

[0073] In the embodiments of the present application, the target function can but is not limited to represent as follows:

[0074] wherein, represents the average speed during the test process, with the unit of m / s; represents the cumulative driving time of the vehicle before and after the trigger is triggered, with the unit of seconds (s); The mileage of the vehicle accumulated before and after the trigger is triggered, in meters (m).

[0075] The embodiment of the present application can correlate the average vehicle speed in the uniform speed driving process with the driving mileage, driving time and target vehicle speed through the target function. While ensuring that the verification of the average vehicle speed has objective data support, the error range is limited. The vehicle speed of the entire test cycle can be strictly controlled to be close to the real constant speed in the physical sense, and the distortion of the fuel consumption data caused by the deviation of the overall vehicle speed can be excluded. Therefore, it can be directly and clearly judged whether the constant speed fuel consumption calculation result is reliable through the verification result of the target function.

[0076] The constant speed fuel consumption test method of the vehicle in the embodiment of the present application is explained and described in detail below with one specific embodiment. Figure 2 The vehicle CAN data schematic diagram of the test process of one embodiment of the present application (which can be but is not limited to INCA (Integrated Calibration and Application Tool) or CANoe (CANOpen Environment) collection); Figure 3 The test node schematic diagram of one embodiment of the present application, wherein the meanings of the respective labels in the figure are as follows: 1: the vehicle SOC is reduced to the target SOC, and the test starts; 2: the engine start point; 3: the vehicle SOC reaches the target SOC, and the test ends; 4: the vehicle SOC is reduced to the target SOC, and the trigger is triggered, and the test starts; 5: the fuel consumption during the test; 6: the vehicle SOC reaches the target SOC, and the trigger is triggered, and the test ends. The specific test process can be but is not limited to the following (the road weather conditions, vehicle requirements and test equipment installation are the same as in the previous embodiment, and will not be repeated here): (1) The vehicle maintains SOC greater than 25% before entering the test road; used to provide basic power support for subsequent accurate determination of engine start SOC (equivalent to remaining power percentage start value), to avoid the vehicle triggering engine start due to insufficient power before entering the test road when the initial SOC is lower than 25%, which leads to failure to normally execute EV mode uniform speed driving to engine start, so that the start SOC cannot be accurately calibrated; (2) The vehicle driving mode is set to ECO mode (economy mode), the driving mode is set to EV mode (pure electric mode), the power saving mode is adjusted to intelligent or common mode, and the vehicle is driven at a target speed V until the engine starts, and the SOC value is recorded as the start SOC; the start SOC plus 2% is recorded as the target SOC (equivalent to the first target value of the percentage of the remaining power); the smoothness of the vehicle power output is mainly controlled through the ECO mode, the initial stage is only driven by the motor through the EV mode, the intelligent power saving mode avoids artificial intervention of the SOC change, the engine is started under fixed conditions combined with the three modes to provide a unified test environment, and the interference of mode difference on the engine starting time is excluded; at the same time, the start SOC measured by the uniform speed driving is the critical power threshold of the engine starting, and the target SOC=the start SOC+2% is used as the reference of the core control node of the subsequent test cycle, that is, the target SOC is the starting point of the test trigger and the end point of the test termination, which lays a foundation for fixing the SOC fluctuation range and excluding the interference of the battery power change on the fuel consumption; (3) The vehicle is charged until the percentage of the remaining power of the target hybrid vehicle reaches the second target value of the percentage of the remaining power; the percentage of the remaining power of the target hybrid vehicle is actually charged to the second target value of the percentage of the remaining power; sufficient power is reserved for the subsequent process of the vehicle driven at a target speed V from the EV mode to the target SOC, the test is interrupted due to power shortage, the continuity of the test process and the subsequent data acquisition is ensured, and the vehicle battery cannot be uniformly reduced from the current SOC to the target SOC due to insufficient power, but the engine starts in advance, and the whole test cycle process from the target SOC to the target SOC cannot be completed; (4) The driving mode is set to EV (pure electric driving) mode, the vehicle is driven at a target speed V, the target SOC is reached, the trigger is triggered, the vehicle is automatically switched to HEV (hybrid) mode after the engine starts, and the vehicle is automatically charged when the SOC reaches the target SOC, the trigger terminates the test, and the driving distance S, the driving time T and the fuel consumption Ci are recorded; the test is triggered by the battery of the vehicle in the EV mode to ensure the uniformity of the starting point of each test, the test is terminated by the battery SOC of the vehicle in the HEV mode to make the starting point and the ending point of the vehicle battery SOC consistent, and the interference of the battery charging and discharging process on the fuel consumption is completely excluded, because the recorded fuel consumption is only used to maintain the vehicle to drive at a target speed, rather than to charge additional power to the battery; (5) Calculation: C=100*Ci / S Wherein, C is the fuel consumption calculated when the target vehicle speed V is uniformly driven, the unit is liters per 100 kilometers (L / 100km); Ci is the fuel consumption before and after the trigger is triggered, the unit is milliliter (mL); S is the mileage of the vehicle before and after the trigger is triggered, the unit is meter (m); (6) Check: The test process needs to meet:

[0077]

[0078] Wherein, is the instantaneous speed during the test process, the unit is m / s; is the average speed during the test process, the unit is m / s; is the time of the vehicle before and after the trigger is triggered, the unit is second (s); On the one hand, the test is ensured to meet the "true constant speed" condition through the speed check, and the authenticity of the fuel consumption data is ensured, and on the other hand, the driving state is stable during the whole test stage through the double constraints of instantaneous speed and average speed during uniform driving, avoiding the interference of speed fluctuation on the fuel consumption result.

[0079] According to the vehicle constant speed fuel consumption test method provided in the embodiment of the application, the remaining battery percentage second target value of the target hybrid electric vehicle is consumed to the remaining battery percentage first target value through the uniform driving of the target hybrid electric vehicle in the pure electric mode, and the remaining battery percentage real-time value of the target hybrid electric vehicle is charged to the remaining battery percentage first target value through the uniform driving of the target hybrid electric vehicle in the hybrid mode, and finally the constant speed fuel consumption of the target hybrid electric vehicle at the target vehicle speed is calculated based on the driving mileage, driving time and fuel consumption during the uniform driving in the hybrid mode. Therefore, the characteristics of the battery pack power changing during the uniform driving of the hybrid electric vehicle are realized, the battery pack power change during the test process is constrained through the test process of consuming power first and then using the engine to start power supply, the battery pack SOC before and after the test is kept unchanged, and more accurate hybrid electric vehicle constant speed fuel consumption test results are obtained. The constant speed fuel consumption measurement method in the related art is more suitable for vehicles equipped with only internal combustion engines, and the influence of the driving mode of the vehicle on the fuel consumption during the uniform driving is not considered for the hybrid electric vehicle which changes the driving mode of the vehicle with the development of automobile electrification, which easily leads to the problem of poor accuracy of the constant speed fuel consumption calculated by the hybrid electric vehicle.

[0080] Secondly, the vehicle constant speed fuel consumption test device provided in the embodiment of the application is described with reference to the accompanying drawings.

[0081] Figure 4is a structural schematic diagram of a constant-speed fuel consumption test device of a vehicle of an embodiment of the present application.

[0082] As shown in the figure, the constant-speed fuel consumption test device 10 of the vehicle includes an acquisition module 100, a driving module 200, and a calculation module 300. Figure 4

[0083] The acquisition module 100 is configured to acquire a remaining battery percentage starting value when the driving mode of the target hybrid vehicle is switched from the pure electric mode to the hybrid mode during the constant-speed driving of the target hybrid vehicle at the target vehicle speed, so as to determine a first target value of the remaining battery percentage of the target hybrid vehicle according to the remaining battery percentage starting value.

[0084] The driving module 200 is configured to charge the target hybrid vehicle to a second target value of the remaining battery percentage of the target hybrid vehicle, so as to acquire a real-time value of the remaining battery percentage of the target hybrid vehicle during the driving in the hybrid mode after the constant-speed driving of the target hybrid vehicle at the target vehicle speed after the charging and the driving mode of the target hybrid vehicle is switched from the pure electric mode to the hybrid mode.

[0085] The calculation module 300 is configured to acquire a driving distance, a driving time, and a fuel consumption of the target hybrid vehicle during the driving in the hybrid mode when the real-time value of the remaining battery percentage reaches the first target value of the remaining battery percentage, so as to calculate the constant-speed fuel consumption of the target hybrid vehicle at the target vehicle speed according to the driving distance, the driving time, and the fuel consumption.

[0086] Optionally, in an embodiment of the present application, the acquisition module 100 includes a determination unit and a generation unit.

[0087] The determination unit is configured to determine an association rule between the remaining battery percentage starting value and the first target value of the remaining battery percentage according to a target test requirement.

[0088] The generation unit is configured to generate the first target value of the remaining battery percentage according to the association rule and the remaining battery percentage starting value.

[0089] Optionally, in an embodiment of the present application, the constant-speed fuel consumption test device of the vehicle further includes a verification module and a first determination module.

[0090] The verification module is configured to verify whether the instantaneous vehicle speed during the constant-speed driving meets a target error range and whether the average vehicle speed during the constant-speed driving meets a target function after the constant-speed fuel consumption of the target hybrid vehicle at the target vehicle speed is calculated according to the driving distance, the driving time, and the fuel consumption, so as to obtain a verification result of the instantaneous vehicle speed and the average vehicle speed.

[0091] ​The first determination module is configured to determine the credibility of the constant-speed fuel consumption based on the inspection result of the instantaneous vehicle speed and the average vehicle speed.

[0092] Optionally, in an embodiment of the present application, the second determination module is further configured to determine the target function according to the target vehicle speed, the driving distance and the driving time before verifying whether the average vehicle speed during the constant-speed driving meets the target function.

[0093] Optionally, in an embodiment of the present application, the constant-speed fuel consumption is calculated according to the following formula: C = 100 * Ci / S Wherein, C represents the fuel consumption calculated at the target vehicle speed V, and the unit is liters per 100 kilometers (L / 100km); Ci represents the fuel consumption before and after the trigger is triggered, and the unit is milliliters (mL); S represents the driving distance of the vehicle before and after the trigger is triggered, and the unit is meters (m).

[0094] It should be noted that the foregoing explanation and description of the vehicle constant-speed fuel consumption test method embodiment also applies to the vehicle constant-speed fuel consumption test device of this embodiment, which will not be described here.

[0095] The vehicle constant-speed fuel consumption test device according to the embodiments of the present application can consume the second target value of the remaining battery percentage of the target hybrid electric vehicle to the first target value of the remaining battery percentage through the constant-speed driving of the target hybrid electric vehicle in the pure electric mode, charge the real-time value of the remaining battery percentage of the target hybrid electric vehicle to the first target value of the remaining battery percentage through the constant-speed driving of the target hybrid electric vehicle in the hybrid mode, and finally calculate the constant-speed fuel consumption of the target hybrid electric vehicle at the target vehicle speed based on the driving distance, the driving time and the fuel consumption during the constant-speed driving in the hybrid mode. Thus, the characteristics of the battery pack power changing during the constant-speed driving of the hybrid electric vehicle are realized, the test process of consuming power first and then using the engine to start power is used to constrain the battery pack power change during the test process, the battery pack SOC before and after the test is kept unchanged, and more accurate hybrid electric vehicle constant-speed fuel consumption test results are obtained. The constant-speed fuel consumption measurement method in the related art is more suitable for vehicles equipped with only internal combustion engines, and the influence of the driving mode of the vehicle on the fuel consumption during the constant-speed driving is not considered for the hybrid electric vehicle with the development of the electrification of the vehicle, which is easy to cause the poor accuracy of the constant-speed fuel consumption calculated by the hybrid electric vehicle.

[0096] Figure 5 The electronic device provided in the embodiments of the present application is shown in the structural diagram. The electronic device can include: The memory 501, the processor 502, and the computer program stored in the memory 501 and executable on the processor 502.

[0097] The processor 502 implements the constant speed fuel consumption test method of the vehicle provided in the above embodiments when executing a program.

[0098] Further, the electronic device further comprises: The communication interface 503 is configured to communicate between the memory 501 and the processor 502.

[0099] The memory 501 is configured to store a computer program executable on the processor 502.

[0100] The memory 501 can include a high-speed RAM memory, and can further include a non-volatile memory, for example, at least one disk memory.

[0101] If the memory 501, the processor 502 and the communication interface 503 are implemented independently, the communication interface 503, the memory 501 and the processor 502 can be connected to each other through a bus and complete communication between each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, Figure 5 Only one thick line is used in the figure, but it does not mean that there is only one bus or only one type of bus.

[0102] Optionally, in a specific implementation, if the memory 501, the processor 502 and the communication interface 503 are integrated on a chip, the memory 501, the processor 502 and the communication interface 503 can complete communication between each other through an internal interface.

[0103] The processor 502 can be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0104] The embodiments of the present application further provide a computer readable storage medium, which stores a computer program, and the program is executed by a processor to implement the constant speed fuel consumption test method of the vehicle as above.

[0105] The embodiment of the present application further provides a computer program product, comprising a computer program, the computer program can run computer instructions, and the computer instructions are executed by a processor to realize the vehicle constant speed fuel consumption test method provided by the embodiment of the present application.

[0106] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0107] In addition, the terms "first", "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "N" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0108] Any process or method descriptions in flow charts or otherwise described herein represent embodiments that can be understood as a module, segment, or portion of code that includes one or N executable instructions for implementing the specified logical function or process, and the scope of the preferred embodiments of the present application includes additional implementation in which the functions are performed in different orders, including substantially simultaneously, or in reverse order, depending on the functionality involved, which will be understood by those skilled in the art of the embodiments to which the present application belongs.

[0109] The logic and / or steps represented in the flowcharts and / or described herein, for example, can be considered as a sequence of executable instructions stored in a computer readable medium, which can be executed by an instruction execution system, apparatus or device, such as a computer-based system, a processor-based system, or other system that can fetch the instructions from the instruction execution system, apparatus or device and execute the instructions, or a combination of the above. For the purposes of this specification, a "computer readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus or device. The computer readable medium can be a computer readable storage medium or a computer readable signal medium. The computer readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a propagation medium. The computer readable signal medium can include, but is not limited to, a computer readable medium that facilitates transfer of the program from one place to another. A specific example of a computer readable medium is a non-transitory computer-readable storage medium. A specific example of a computer readable signal medium is a source or destination of the computer readable medium. Another specific example of a computer readable signal medium is a computer readable signal travelling through space. Thus, a computer readable medium can take many forms of hardware to carry out the program for use by or in connection with the instruction execution system, apparatus or device.

[0110] It should be understood that aspects of the application can be implemented in hardware, software, firmware or a combination thereof. In the above embodiments, the N steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware and in another embodiment, the hardware can be implemented using any or a combination of the following technologies, which are each well known in the art: a discrete logic circuit having logic gates for implementing logic functions upon an application of data signals, an application specific integrated circuit having appropriate combinational logic gates, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0111] Those of skill in the art would understand that the steps of the methods carried out above can be carried out by a program instructing relevant hardware, and the program can be stored in a computer readable storage medium, and when executed, includes one or a combination of the steps of the method embodiments.

[0112] In addition, each of the functional units in the various embodiments of the present application can be integrated in one processing module, or each of the units can be physically present separately, or two or more units can be integrated in one module. The integrated module can be implemented in the form of hardware or in the form of a software functional module. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer readable storage medium.

[0113] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A method of constant speed fuel consumption testing of a vehicle, characterised in that, The method comprises the following steps: When the target hybrid vehicle travels at a target speed, a remaining battery percentage starting value is obtained when the driving mode of the target hybrid vehicle is switched from a pure electric mode to a hybrid mode, and a first target value of the remaining battery percentage of the target hybrid vehicle is determined according to the remaining battery percentage starting value; The target hybrid vehicle is charged until the actual value of the remaining battery percentage of the target hybrid vehicle reaches a second target value of the remaining battery percentage, so that the target hybrid vehicle travels at the target speed after being charged, and a real-time value of the remaining battery percentage of the target hybrid vehicle during driving in the hybrid mode is obtained when the driving mode of the target hybrid vehicle is switched from the pure electric mode to the hybrid mode; When the real-time value of the remaining battery percentage reaches the first target value of the remaining battery percentage, a driving distance, a driving time and a fuel consumption of the target hybrid vehicle during driving in the hybrid mode are obtained, and the fuel consumption of the target hybrid vehicle at the target speed is calculated according to the driving distance, the driving time and the fuel consumption.

2. The method of claim 1, wherein, The first target value of the remaining battery percentage of the target hybrid vehicle is determined according to the remaining battery percentage starting value, comprising: determining an association rule between the remaining battery percentage starting value and the first target value of the remaining battery percentage according to target test requirements; determining the first target value of the remaining battery percentage according to the association rule and the remaining battery percentage starting value.

3. The method of claim 1, wherein, After the fuel consumption of the target hybrid vehicle at the target speed is calculated according to the driving distance, the driving time and the fuel consumption, the method further comprises: verifying whether an instantaneous speed during the uniform speed driving process meets a target error range and verifying whether an average speed during the uniform speed driving process meets a target function to obtain a verification result of the instantaneous speed and the average speed; determining a credibility of the fuel consumption based on the verification result of the instantaneous speed and the average speed.

4. The method of claim 3, wherein, Before verifying whether the average speed during the uniform speed driving process meets the target function, the method further comprises: determining the target function according to the target speed, the driving distance and the driving time.

5. The method of claim 1, wherein, The calculation formula of the fuel consumption is: C = 100 * Ci / S wherein C represents a fuel consumption calculated at the target speed V, and the unit is liters per 100 kilometers (L / 100km); Ci represents a fuel consumption before and after a trigger is triggered, and the unit is milliliters (mL); and S represents a distance traveled by the vehicle before and after the trigger is triggered, and the unit is meters (m).

6. A constant speed fuel consumption testing device for a vehicle, characterized by The method comprises: an obtaining module, configured to obtain a remaining battery percentage starting value when a driving mode of a target hybrid vehicle is switched from a pure electric mode to a hybrid mode when the target hybrid vehicle travels at a target speed, and determine a first target value of the remaining battery percentage of the target hybrid vehicle according to the remaining battery percentage starting value; The driving module is configured to charge the target hybrid vehicle to a second target value of a remaining percentage of electric quantity, so that the target hybrid vehicle travels at a constant speed after being charged at the target speed, and after the driving mode of the target hybrid vehicle is switched from the pure electric mode to the hybrid mode, the driving module is configured to obtain a real-time value of the remaining percentage of electric quantity of the target hybrid vehicle during driving in the hybrid mode; The calculation module is configured to obtain a driving distance, a driving time and a fuel consumption of the target hybrid vehicle during driving in the hybrid mode when the real-time value of the remaining percentage of electric quantity reaches the first target value of the remaining percentage of electric quantity, and to calculate a constant speed fuel consumption of the target hybrid vehicle at the target speed according to the driving distance, the driving time and the fuel consumption.

7. The apparatus of claim 6, wherein, The obtaining module comprises: A determination unit configured to determine an association rule between the first target value of the remaining percentage of electric quantity and a starting value of the remaining percentage of electric quantity according to a target test requirement; A generation unit configured to determine the first target value of the remaining percentage of electric quantity according to the association rule and the starting value of the remaining percentage of electric quantity.

8. An electronic device, comprising: It comprises: A memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the constant speed fuel consumption test method of the vehicle according to any one of claims 1-5.

9. A computer-readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to implement the constant speed fuel consumption test method of the vehicle according to any one of claims 1-5.

10. A computer program product comprising a computer program, characterized in that, The computer program is executed to implement the constant speed fuel consumption test method of the vehicle according to any one of claims 1-5.

Images