Method, device and equipment for obtaining comprehensive fuel consumption value and storage medium

Abstract

The application relates to the technical field of hybrid cars, and discloses a comprehensive fuel consumption value acquisition method, device, equipment and storage medium, which detects the driving mode of an engine; the running state of the engine is acquired according to the driving mode; the unit mileage electric consumption value and the unit mileage fuel consumption value of the vehicle are determined according to the running state of the engine; and the comprehensive fuel consumption value is acquired according to the unit mileage electric consumption value and the unit mileage fuel consumption value. By acquiring the whole vehicle parameters, the oil-electricity conversion coefficient, the unit mileage electric consumption value and the unit mileage fuel consumption value are calculated, the sum value of the unit mileage electric consumption value and the unit mileage fuel consumption value and the ratio of the unit mileage electric consumption value and the oil-electricity conversion coefficient are calculated, the sum value is subtracted from the ratio, the comprehensive fuel consumption value is obtained, and the comprehensive fuel consumption value is displayed on the 4DHT plug-in hybrid car instrument panel, so that the user can intuitively obtain the accurate comprehensive fuel consumption value.

Description

Technical Field

[0001] This invention relates to the field of hybrid vehicle technology, and in particular to a method, apparatus, equipment and storage medium for obtaining comprehensive fuel consumption values. Background Technology

[0002] For plug-in hybrid electric vehicles (PHEVs), it is necessary to display relevant energy consumption on the instrument panel, including energy consumption per unit mile, fuel consumption per unit mile, and combined fuel consumption. In the four-speed dual-clutch transmission (4DHT) designed specifically for hybrid vehicles, the energy consumption value is not necessarily the same for different driving conditions. In order to display the combined fuel consumption value more accurately, this patent was invented. Summary of the Invention

[0003] The purpose of this invention is to provide a method, apparatus, device and storage medium for obtaining comprehensive fuel consumption value, aiming to solve the technical problem of how to accurately obtain the comprehensive fuel consumption value of 4DHT plug-in hybrid electric vehicles.

[0004] To achieve the above objectives, the present invention proposes a method for obtaining comprehensive fuel consumption value, characterized in that the method includes:

[0005] The engine drive mode is detected, including: engine direct drive mode, EV direct drive mode, series drive mode and EVCT drive mode;

[0006] The engine's operating status is obtained based on the driving method.

[0007] The vehicle's energy consumption per unit mile and fuel consumption per unit mile are determined based on the engine's operating status.

[0008] The comprehensive fuel consumption value is obtained based on the energy consumption value per unit mileage and the fuel consumption value per unit mileage.

[0009] In one embodiment, determining the vehicle's energy consumption per unit mile and fuel consumption per unit mile based on the engine's operating status includes:

[0010] When the operating state is driving state and power generation state, the total power consumption of the battery within the driving range is obtained.

[0011] The unit mileage energy consumption value is obtained based on the ratio of the total energy consumption to the driving mileage;

[0012] The fuel consumption in the driving state and the fuel consumption in the power generation state within the driving mileage are obtained, and the total fuel consumption is obtained by the sum of the fuel consumption in the driving state and the fuel consumption in the power generation state.

[0013] The fuel consumption per unit mileage is obtained based on the ratio of the total fuel consumption to the mileage traveled.

[0014] In one embodiment, before the step of obtaining the comprehensive fuel consumption value based on the unit mileage electricity consumption value and the unit mileage fuel consumption value, the method includes:

[0015] Obtain the oil-to-electricity conversion coefficient;

[0016] Accordingly, obtaining the comprehensive fuel consumption value based on the unit mileage electricity consumption value and the unit mileage fuel consumption value further includes:

[0017] Obtain the sum of the unit mileage electricity consumption value and the unit mileage fuel consumption value, and the first ratio of the unit mileage electricity consumption value to the fuel-to-electricity conversion coefficient;

[0018] The comprehensive fuel consumption value is obtained based on the difference between the sum and the first ratio.

[0019] In one embodiment, the step of obtaining the oil-to-electricity conversion coefficient includes:

[0020] Obtain the vehicle power, drive motor power, generator power, engine specific fuel consumption rate, total engine power, and time integral within the stated driving mileage;

[0021] The engine power generation power is obtained based on the difference between the total power and the vehicle power.

[0022] Obtain the first product of the engine's power generation and the engine's specific fuel consumption rate;

[0023] The engine power generation ratio is obtained based on the ratio of the first product to the total engine power.

[0024] Obtain the second product of the engine's power generation ratio and the engine's power generation capacity;

[0025] The amount of oil used for power generation is obtained based on the second ratio of the second product to the fuel density.

[0026] Obtain the first sum of the power generated by the drive motor and the power generated by the generator;

[0027] The total power generation of the motor is obtained by multiplying the first sum by the second product of the time integral.

[0028] The oil-to-electricity conversion coefficient is obtained based on the third ratio of the total power generation of the motor to the amount of oil used for power generation.

[0029] In one embodiment, after the step of obtaining the engine's operating state according to the driving mode, the process includes:

[0030] When the operating state is power generation state, obtain the total power consumption of the battery within the driving range;

[0031] The unit mileage energy consumption value is obtained based on the ratio of the total energy consumption to the driving mileage;

[0032] The fuel consumption during the power generation state within the specified driving mileage is obtained as the total fuel consumption.

[0033] The fuel consumption per unit mileage is obtained based on the ratio of the total fuel consumption to the mileage traveled.

[0034] In one embodiment, prior to the step of detecting the engine's driving mode, the following steps are included:

[0035] Shift the gears of the transmission;

[0036] When the drive motor and generator corresponding to the operating gear are in the power generation state, return to the step of detecting the engine's drive mode.

[0037] In one embodiment, prior to the step of switching the operating gear of the transmission, the following steps are included:

[0038] Get the current battery status;

[0039] When the current battery level does not meet the vehicle's power requirements, start the engine and return to the step of switching the transmission gear.

[0040] Furthermore, to achieve the above objectives, the present invention also proposes a comprehensive fuel consumption display device, the device comprising:

[0041] The drive detection module is used to detect the engine's drive mode, which includes: engine direct drive mode, EV direct drive mode, series drive mode, and EVCT drive mode.

[0042] The status acquisition module is used to acquire the engine's operating status according to the driving method;

[0043] The parameter acquisition module is used to determine the vehicle's energy consumption per unit mileage and fuel consumption per unit mileage based on the engine's operating status.

[0044] The comprehensive acquisition module is used to obtain the comprehensive fuel consumption value based on the unit mileage electricity consumption value and the unit mileage fuel consumption value.

[0045] Furthermore, to achieve the above objectives, the present invention also proposes a comprehensive fuel consumption value display device, the device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the comprehensive fuel consumption value acquisition method as described above.

[0046] Furthermore, to achieve the above objectives, the present invention also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the comprehensive fuel consumption value acquisition method as described above.

[0047] This invention provides a method for obtaining a comprehensive fuel consumption value. First, the engine's drive mode is detected to determine whether it is a direct drive, EV direct drive, series drive, or EVCT drive mode. Then, the engine's operating status is obtained based on the drive mode. Next, the vehicle's energy consumption per unit mile and fuel consumption per unit mile are determined based on the engine's operating status. Finally, the comprehensive fuel consumption value is obtained based on the energy consumption per unit mile and fuel consumption per unit mile. By acquiring vehicle parameters, the fuel-electric conversion coefficient, energy consumption per unit mile, and fuel consumption per unit mile are calculated. The sum of the energy consumption per unit mile and fuel consumption per unit mile, as well as the ratio of the energy consumption per unit mile to the fuel-electric conversion coefficient, are calculated. Subtracting the ratio from the sum yields the comprehensive fuel consumption value, which is then displayed on the 4DHT plug-in hybrid electric vehicle's instrument panel, allowing users to intuitively obtain an accurate comprehensive fuel consumption value. Attached Figure Description

[0048] Figure 1 This is a flowchart illustrating the first embodiment of the method for obtaining comprehensive fuel consumption value proposed in an embodiment of the present invention;

[0049] Figure 2 This is a schematic diagram of the first process of a second embodiment of the method for obtaining comprehensive fuel consumption value proposed in an embodiment of the present invention;

[0050] Figure 3 This is a schematic diagram of the second process of the second embodiment of the comprehensive fuel consumption value acquisition method proposed in one embodiment of the present invention;

[0051] Figure 4 This is a schematic diagram of the third process of the second embodiment of the comprehensive fuel consumption value acquisition method proposed in one embodiment of the present invention;

[0052] Figure 5 This is a schematic diagram of the first process of the third embodiment of the comprehensive fuel consumption value acquisition method proposed in one embodiment of the present invention;

[0053] Figure 6 This is a schematic diagram of the second process of the third embodiment of the comprehensive fuel consumption value acquisition method proposed in one embodiment of the present invention;

[0054] Figure 7 This is a schematic diagram of the module structure of the comprehensive fuel consumption value acquisition device according to an embodiment of the present invention;

[0055] Figure 8 This is a schematic diagram of the hardware operating environment for obtaining the comprehensive fuel consumption value in the embodiment of the present invention.

[0056] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0057] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of the present invention and are not intended to limit the present invention.

[0058] To better understand the technical solution of the present invention, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments.

[0059] The main solution of this invention is: to detect the engine's drive mode, including: engine direct drive, EV direct drive, series drive, and EVCT drive; to obtain the engine's operating status based on the drive mode; to determine the vehicle's energy consumption per unit mile and fuel consumption per unit mile based on the engine's operating status; and to obtain the comprehensive fuel consumption value based on the energy consumption per unit mile and fuel consumption per unit mile.

[0060] Because the energy consumption value varies depending on the driving conditions in the 4DHT system designed specifically for hybrid vehicles, it is necessary to accurately display the combined fuel consumption value.

[0061] This invention provides a method for obtaining comprehensive fuel consumption. By acquiring vehicle parameters, the method calculates the oil-to-electricity conversion coefficient, the electricity consumption per unit mileage, and the fuel consumption per unit mileage. Then, it calculates the sum of the electricity consumption per unit mileage and the fuel consumption per unit mileage, as well as the ratio of the electricity consumption per unit mileage to the oil-to-electricity conversion coefficient. The comprehensive fuel consumption value is obtained by subtracting the ratio from the sum. The comprehensive fuel consumption value is then displayed on the dashboard of a 4DHT plug-in hybrid electric vehicle, allowing users to intuitively obtain an accurate comprehensive fuel consumption value.

[0062] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or a comprehensive fuel consumption value acquisition device capable of achieving the above functions. The following description uses a comprehensive fuel consumption value acquisition device as an example to illustrate this embodiment and the subsequent embodiments.

[0063] Based on this, the present invention proposes a method for obtaining comprehensive fuel consumption value, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the method for obtaining comprehensive fuel consumption value proposed in an embodiment of the present invention.

[0064] In this embodiment, the method for obtaining the comprehensive fuel consumption value includes steps S10 to S40:

[0065] Step S10: Detect the engine's drive mode, which includes: engine direct drive mode, EV direct drive mode, series drive mode, and EVCT drive mode.

[0066] It's important to clarify that engine direct drive refers to the engine directly connecting to the wheels via the transmission and drive shaft to drive the vehicle; EV direct drive refers to the electric motor directly driving the wheels without going through a traditional transmission and drive shaft; in series drive, the engine does not directly drive the wheels, but instead generates electricity through a generator, which is then transmitted to the drive motor via an inverter to drive the vehicle; EVCT (Electric Continuously Transmission) is a drive system that integrates an electric motor and a transmission. It can continuously adjust power output in different driving modes, providing smooth acceleration and efficient energy management. This method combines the advantages of direct drive from an electric motor with the shifting capabilities of a transmission, making it suitable for PHEVs and pure electric vehicles.

[0067] It should be understood that a 4DHT system offers a very wide range of drive modes for the vehicle, as detailed below:

[0068]

[0069] As shown in the table above, there are many gears to choose from at the same vehicle speed. Different gears result in different energy consumption and fuel consumption, and the overall display on the instrument panel will also be different.

[0070] Step S20: Obtain the engine's operating status according to the driving method.

[0071] It should be understood that, in order to obtain the engine's operating status according to the driving method, a series of sensors and monitoring technologies can be used to collect key engine parameters in real time; these parameters include, but are not limited to, speed, temperature, pressure, vibration, fuel consumption rate, emission level, etc.; through this data, an engine operating status profile can be constructed, and advanced data analysis methods, such as neural networks and machine learning algorithms, can be used to predict and evaluate the engine's health status.

[0072] Step S30: Determine the vehicle's energy consumption per unit mileage and fuel consumption per unit mileage based on the engine's operating status.

[0073] It should be noted that the operating state includes driving state and power generation state, and the unit mileage energy consumption value is the average energy consumption value per 100 kilometers. The average energy consumption per 100 kilometers is an important indicator for measuring the energy efficiency of electric vehicles. It represents the amount of electricity consumed by an electric vehicle for every 100 kilometers traveled. Different models of electric vehicles have different energy consumption per 100 kilometers. For example, the actual measured energy consumption of a certain commercially available vehicle is 11.6 kWh / 100km, while another commercially available vehicle achieved a lower energy consumption of 8.8 kWh / 100km under specific test conditions. These data can help consumers understand the energy consumption levels of different electric vehicles, thereby making a more reasonable car purchase decision. In addition, the actual energy consumption of electric vehicles is also affected by factors such as driving habits, road conditions, and vehicle load.

[0074] It should be understood that the fuel consumption per unit mile refers to the average fuel consumption per 100 kilometers, which represents the amount of fuel consumed by a car driving 100 kilometers. The average fuel consumption per 100 kilometers is affected by a variety of factors, including the vehicle's design, engine efficiency, vehicle weight, aerodynamic characteristics, driving habits, road conditions, vehicle maintenance, and environmental factors. For example, driving behaviors such as rapid acceleration, sudden braking, and high-speed driving will increase fuel consumption, while smooth driving, reasonable use of cruise control, and maintaining proper tire pressure will help reduce fuel consumption.

[0075] Step S40: Obtain the comprehensive fuel consumption value based on the unit mileage electricity consumption value and the unit mileage fuel consumption value.

[0076] It should be noted that the comprehensive fuel consumption value is obtained by first acquiring the vehicle parameters, calculating the oil-to-electricity conversion coefficient, the unit mileage electricity consumption value, and the unit mileage fuel consumption value, then calculating the sum of the unit mileage electricity consumption value and the unit mileage fuel consumption value, and the ratio of the unit mileage electricity consumption value to the oil-to-electricity conversion coefficient, and subtracting the ratio from the sum to obtain a value. The oil-to-electricity conversion coefficient is obtained by acquiring parameters such as the speed and torque of the generator and drive motor under various modes, which is discussed in detail in Embodiment 2.

[0077] In this embodiment, the engine's drive mode is first detected to determine whether it is a direct drive, EV direct drive, series drive, or EVCT drive mode. Then, the engine's operating status is obtained based on the drive mode. Next, the vehicle's energy consumption per unit mile and fuel consumption per unit mile are determined based on the engine's operating status. Finally, the combined fuel consumption value is obtained based on the energy consumption per unit mile and fuel consumption per unit mile. By acquiring vehicle parameters, the fuel-electric conversion coefficient, energy consumption per unit mile, and fuel consumption per unit mile are calculated. The sum of the energy consumption per unit mile and fuel consumption per unit mile, as well as the ratio of the energy consumption per unit mile to the fuel-electric conversion coefficient, are then calculated. Subtracting the ratio from the sum yields the combined fuel consumption value, which is then displayed on the 4DHT plug-in hybrid electric vehicle's instrument panel, allowing the user to intuitively obtain an accurate combined fuel consumption value.

[0078] Based on the first embodiment of the present invention, in the second embodiment of the present invention, the contents that are the same as or similar to those in the first embodiment described above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 2 , Figure 2 This is a schematic diagram of the first process of a second embodiment of the method for obtaining comprehensive fuel consumption value proposed in an embodiment of the present invention. Step S30 further includes:

[0079] Step S301: When the operating state is driving state and power generation state, obtain the total power consumption of the battery within the driving range.

[0080] It should be understood that the driving state refers to the engine directly driving the wheels or the battery supplying power to the drive motor and then driving the wheels; the power generation state refers to the engine first generating electricity through the generator, then charging the battery, and then the battery supplying power to the drive motor and finally driving the wheels.

[0081] Step S302: Obtain the unit mileage power consumption value based on the ratio of the total power consumption to the driving mileage.

[0082] It should be noted that the total energy consumption of the battery within the driving range refers to the total amount of electrical energy consumed by the battery pack within 100 kilometers of driving range. The total energy consumption can be calculated by multiplying the SOC value by the nominal capacity of the battery. This calculation assumes that the nominal capacity of the battery is fixed throughout the entire use process, but in reality, the actual capacity of the battery will change with use and aging.

[0083] Step S303: Obtain the fuel consumption in the driving state and the fuel consumption in the power generation state within the driving mileage, and obtain the total fuel consumption by the sum of the fuel consumption in the driving state and the fuel consumption in the power generation state.

[0084] It should be understood that when calculating the total fuel consumption of a hybrid vehicle or similar system, it is usually necessary to consider the fuel consumption of the vehicle in different states, including driving state and power generation state; the total fuel consumption is obtained by adding the fuel consumption of the vehicle in driving state to the fuel consumption in power generation state; this calculation method can more accurately reflect the fuel consumption of the vehicle in actual use.

[0085] Step S304: Obtain the fuel consumption per unit mileage based on the ratio of the total fuel consumption to the mileage traveled.

[0086] It should be noted that the fuel consumption in the driving state and the fuel consumption in the power generation state can be obtained through a fuel level sensor.

[0087] Please refer to Figure 3 , Figure 3 This is a second flowchart illustrating a second embodiment of the method for obtaining comprehensive fuel consumption value proposed in an embodiment of the present invention. Based on this, the method further includes the following steps before step S40:

[0088] Step S401: Obtain the oil-to-electricity conversion coefficient.

[0089] It should be noted that the oil-to-electricity conversion coefficient is calculated by obtaining the vehicle power, fuel density, motor power generation, time integral over the driving mileage, and the total power of the engine.

[0090] Accordingly, step S40 also includes:

[0091] Step S402: Obtain the sum of the unit mileage electricity consumption value and the unit mileage fuel consumption value, and the first ratio of the unit mileage electricity consumption value to the fuel-electricity conversion coefficient;

[0092] Step S403: Obtain the comprehensive fuel consumption value based on the difference between the sum and the first ratio.

[0093] It should be understood that the above-mentioned unit mileage electricity consumption value, unit mileage fuel consumption value, and combined fuel consumption value are displayed on the car's instrument panel, while the first ratio value is not displayed on the car's instrument panel.

[0094] Please refer to Figure 4 , Figure 4 This is a schematic diagram of the third process of the second embodiment of the comprehensive fuel consumption value acquisition method proposed in an embodiment of the present invention. The above step S401 further includes:

[0095] Step S404: Obtain the total vehicle power, drive motor power generation, generator power generation, engine specific fuel consumption rate, total engine power, and time integral within the driving mileage;

[0096] Step S405: Obtain the engine power generation power based on the difference between the total power and the vehicle power.

[0097] It should be noted that the vehicle power, drive motor power generation, generator power generation, engine specific fuel consumption rate, total engine power, and time integral within the stated driving mileage are calculated or indirectly obtained through the vehicle control unit. The engine specific fuel consumption rate (BSFC) refers to the mass of fuel consumed by the engine in one hour to produce 1 kilowatt of effective power, expressed in grams per kilowatt-hour. This ratio is an important indicator for measuring engine fuel economy; the lower the specific fuel consumption rate, the higher the engine's fuel efficiency and the better its economy. The total power usually refers to the total electrical power demand of the vehicle under specific operating conditions, while the vehicle power may refer to the total power consumption of the vehicle in actual operation, including the power to drive the vehicle and the power to supply electricity to the electrical system. The difference between the two can reflect the engine's ability to provide electrical energy to the electrical system while providing driving force.

[0098] Step S406: Obtain the first product of the engine's power generation and the engine's specific fuel consumption rate;

[0099] Step S407: Obtain the engine power generation ratio fuel consumption rate based on the ratio of the first product to the total engine power.

[0100] It should be understood that when calculating the engine BSFC used for power generation, there are two scenarios: the engine power is entirely used for power generation or the engine power is used for both power generation and vehicle drive. In the first scenario, the engine speed, torque (engine power = speed * torque / 9550), and BSFC are all used for power generation. In the second scenario, the engine speed, torque (engine power = speed * torque / 9550), and BSFC are partially used for power generation. In this case, the engine BSFC used for power generation = engine power generation * engine BSFC / total engine power.

[0101] Step S408: Obtain the second product of the engine's power generation ratio and the engine's power generation capacity;

[0102] Step S409: Obtain the amount of oil for power generation based on the second ratio of the second product to the fuel density.

[0103] It should be noted that: BMS: can read battery level, battery output / input power, etc.; ECU: can read engine speed, torque, BSFC, etc.; VCU: can read vehicle drive status, power calculation, etc.; MCU: can read drive motor speed, torque, etc.; GCU: can read generator speed, torque, etc.

[0104] Step S410: Obtain the first sum of the power generated by the drive motor and the power generated by the generator.

[0105] Step S411: Obtain the total power generation of the motor based on the second product of the first sum and the time integral.

[0106] It should be noted that the total power generation of the motor includes the power generation of the drive motor and the power generation of the generator.

[0107] It should be understood that, since the engine, generator, and drive motor are all in transient conditions during the vehicle's operation, energy consumption is calculated by integrating at 0.01s.

[0108] Step S412: Obtain the oil-to-electricity conversion coefficient based on the third ratio of the total power generation of the motor to the amount of oil used for power generation.

[0109] In this embodiment, by acquiring the vehicle power, fuel density, motor power generation, time integral within the driving mileage, and total engine power, the oil-to-electric conversion coefficient, unit mileage electricity consumption value, and unit mileage fuel consumption value are calculated. Then, the sum of the unit mileage electricity consumption value and the unit mileage fuel consumption value, as well as the ratio of the unit mileage electricity consumption value to the oil-to-electric conversion coefficient, are calculated. The sum is subtracted from the ratio to obtain the comprehensive fuel consumption value, which is then displayed on the 4DHT plug-in hybrid vehicle's instrument panel, allowing users to intuitively obtain an accurate comprehensive fuel consumption value and improving the user experience.

[0110] Based on the first and / or second embodiments of the present invention, in the third embodiment of the present invention, the content that is the same as or similar to that in embodiments one and two described above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 5 , Figure 5 This is a schematic diagram of the first process of a third embodiment of the method for obtaining comprehensive fuel consumption value proposed in an embodiment of the present invention. After step S20, it further includes:

[0111] Step S201: When the operating state is the power generation state, obtain the total power consumption of the battery within the driving range.

[0112] It should be noted that when the operating state is the power generation state, the car is in a series drive mode. The engine does not directly drive the wheels, but generates electricity through the generator. The electrical energy is then transmitted to the drive motor through the inverter to drive the vehicle.

[0113] Step S202: Obtain the unit mileage energy consumption value based on the ratio of the total energy consumption to the driving mileage;

[0114] Step S203: Obtain the fuel consumption of the power generation state within the driving mileage as the total fuel consumption;

[0115] Step S204: Obtain the fuel consumption per unit mileage based on the ratio of the total fuel consumption to the mileage traveled.

[0116] It should be understood that when the operating state is power generation, the total fuel consumption at this time does not include the fuel consumption in the drive state.

[0117] Please refer to Figure 6 , Figure 6 This is a schematic diagram of the second process of a third embodiment of the comprehensive fuel consumption value acquisition method proposed in an embodiment of the present invention. Before step S10, the method includes:

[0118] Step S101: Switch the operating gear of the transmission.

[0119] It should be noted that gear shifting refers to changing the ratio of the gear combinations inside the transmission during car driving, according to different driving needs and road conditions, in order to change the vehicle's speed and torque output. Automatic transmissions usually have a variety of preset gear modes, such as P (Park), R (Reverse), N (Neutral), D (Drive), S (Sport), and L (Low), etc. The driver can switch gears by operating the gear lever or paddle shifters.

[0120] Step S102: When the drive motor and generator corresponding to the operating gear are in the power generation state, return to the step of detecting the engine's drive mode.

[0121] It should be noted that whether the drive motor and generator corresponding to the operating gear are in the power generation state is determined by the microcontroller unit and the gasoline control unit.

[0122] Before step S101, the following are included:

[0123] Step S103: Obtain the current battery power status;

[0124] Step S104: When the current battery level does not meet the vehicle's power requirements, start the engine and return to the step of switching the gearbox's operating gear.

[0125] It should be understood that when the current state of charge does not meet the vehicle's power requirements, it means that the electric vehicle's current remaining charge is insufficient to support the vehicle to achieve the expected power output under the current operating conditions. The Battery Management System (BMS) will monitor the battery's status in real time, including voltage, current, temperature, and remaining charge (SOC). When the battery's SOC is detected to be below a certain threshold and the vehicle's power requirements exceed the range that the battery can currently provide, the BMS will take corresponding measures to protect the battery and avoid over-discharge and potential damage.

[0126] In this embodiment, when the operating state is in power generation state, the total power consumption of the battery within the driving mileage is obtained. The power consumption per unit mileage is obtained based on the ratio of the total power consumption to the driving mileage. The fuel consumption in the power generation state within the driving mileage is obtained as the total fuel consumption. The fuel consumption per unit mileage is obtained based on the ratio of the total fuel consumption to the driving mileage, ensuring that the vehicle can display an accurate comprehensive fuel consumption value even in series drive mode. At the same time, when the current battery level does not meet the vehicle's power requirements, the engine is started and the transmission gear is switched. When the drive motor and generator corresponding to the gear are in power generation state, the process returns to the step of detecting the engine's drive mode, making the subsequent vehicle parameters more accurate and the calculated comprehensive fuel consumption value more accurate.

[0127] It should be noted that the above examples are only for understanding the present invention and do not constitute a limitation on the method for obtaining the comprehensive fuel consumption value of the present invention. Any simple modifications based on this technical concept are within the protection scope of the present invention.

[0128] This invention also proposes a comprehensive fuel consumption display device, please refer to... Figure 4 The device includes:

[0129] The drive detection module 10 is used to detect the engine's drive mode, which includes: engine direct drive mode, EV direct drive mode, series drive mode and EVCT drive mode.

[0130] The status acquisition module 20 is used to acquire the engine's operating status according to the driving mode;

[0131] The parameter acquisition module 30 is used to determine the vehicle's energy consumption per unit mileage and fuel consumption per unit mileage based on the engine's operating status.

[0132] The comprehensive acquisition module 40 is used to acquire the comprehensive fuel consumption value based on the unit mileage electricity consumption value and the unit mileage fuel consumption value.

[0133] Optionally, the parameter acquisition module 30 is further configured to: acquire the total power consumption of the battery within the driving range when the operating state is driving state and power generation state; acquire the power consumption per unit mileage based on the ratio of the total power consumption to the driving range; acquire the fuel consumption in the driving state and the fuel consumption in the power generation state within the driving range, and acquire the total fuel consumption by the sum of the fuel consumption in the driving state and the fuel consumption in the power generation state; and acquire the fuel consumption per unit mileage based on the ratio of the total fuel consumption to the driving range.

[0134] Optionally, the comprehensive acquisition module 40 is further used to acquire the oil-electricity conversion coefficient; correspondingly, the step of acquiring the comprehensive fuel consumption value based on the unit mileage electricity consumption value and the unit mileage fuel consumption value further includes: acquiring the sum of the unit mileage electricity consumption value and the unit mileage fuel consumption value, and a first ratio of the unit mileage electricity consumption value to the oil-electricity conversion coefficient; and acquiring the comprehensive fuel consumption value based on the difference between the sum and the first ratio.

[0135] Optionally, the comprehensive acquisition module 40 is further configured to acquire the vehicle power, drive motor power generation, generator power generation, engine specific fuel consumption rate, total engine power, and time integral within the driving mileage; acquire the engine power generation based on the difference between the total power and the vehicle power; acquire a first product of the engine power generation and the engine specific fuel consumption rate; acquire the engine specific fuel consumption rate based on the ratio of the first product to the total engine power; acquire a second product of the engine specific fuel consumption rate and the engine power generation; acquire the amount of fuel used for power generation based on the second product and a second ratio of the fuel density; acquire a first sum of the drive motor power generation and the generator power generation; acquire the total motor power generation based on the second sum and a second product of the time integral; and acquire the oil-to-electricity conversion coefficient based on a third ratio of the total motor power generation to the amount of fuel used for power generation.

[0136] Optionally, the status acquisition module 20 is further configured to, when the operating status is power generation status, acquire the total power consumption of the battery within the driving mileage; acquire the power consumption per unit mileage based on the ratio of the total power consumption to the driving mileage; acquire the fuel consumption in the power generation status within the driving mileage as the total fuel consumption; and acquire the fuel consumption per unit mileage based on the ratio of the total fuel consumption to the driving mileage.

[0137] Optionally, the drive detection module 10 is also used to switch the operating gear of the transmission; when the drive motor and generator corresponding to the operating gear are in the power generation state, the step of detecting the engine's drive mode is returned.

[0138] Optionally, the drive detection module 10 is also used to obtain the current battery charge status; when the current charge status does not meet the vehicle power requirements, the engine is started and the process returns to the step of switching the gearbox operating gear.

[0139] The comprehensive fuel consumption value acquisition device provided by this invention, employing the comprehensive fuel consumption value acquisition method in the above embodiments, can solve the technical problem of how to accurately obtain the comprehensive fuel consumption value of a 4DHT plug-in hybrid electric vehicle. Compared with the prior art, the beneficial effects of the comprehensive fuel consumption value acquisition device provided by this invention are the same as those of the comprehensive fuel consumption value acquisition method provided in the above embodiments, and other technical features in the comprehensive fuel consumption value acquisition device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0140] The present invention provides a comprehensive fuel consumption value acquisition device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the comprehensive fuel consumption value acquisition method in the above embodiment 1.

[0141] The following is for reference. Figure 5 The diagram illustrates a structural schematic of a comprehensive fuel consumption value acquisition device suitable for implementing embodiments of the present invention. The comprehensive fuel consumption value acquisition device in embodiments of the present invention may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 5 The illustrated comprehensive fuel consumption value acquisition device is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of the present invention.

[0142] like Figure 5As shown, the comprehensive fuel consumption value acquisition device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the comprehensive fuel consumption value acquisition device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to I / O interface 1006: input devices 1007 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 1008 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 1003 including, for example, magnetic tapes, hard disks, etc.; and communication devices 1009. Communication device 1009 allows the integrated fuel consumption data acquisition device to communicate wirelessly or wiredly with other devices to exchange data. Although an integrated fuel consumption data acquisition device with various systems is shown in the figure, it should be understood that it is not required to implement or possess all the systems shown. More or fewer systems may be implemented alternatively.

[0143] In particular, according to the embodiments disclosed in this invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this invention include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this invention.

[0144] The comprehensive fuel consumption value acquisition device provided by this invention, employing the comprehensive fuel consumption value acquisition method in the above embodiments, can solve the technical problem of how to accurately obtain the comprehensive fuel consumption value of a 4DHT plug-in hybrid electric vehicle. Compared with the prior art, the beneficial effects of the comprehensive fuel consumption value acquisition device provided by this invention are the same as those of the comprehensive fuel consumption value acquisition method provided in the above embodiments, and other technical features in this comprehensive fuel consumption value acquisition device are the same as those disclosed in the method of the previous embodiment, and will not be repeated here.

[0145] It should be understood that the various parts disclosed in this invention can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0146] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

[0147] The present invention provides a computer-readable storage medium having computer-readable program instructions (i.e., computer programs) stored thereon, the computer-readable program instructions being used to execute the comprehensive fuel consumption value acquisition method in the above embodiments.

[0148] The computer-readable storage medium provided by this invention may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0149] The aforementioned computer-readable storage medium may be included in the integrated fuel consumption value acquisition device; or it may exist independently and not be assembled into the integrated fuel consumption value acquisition device.

[0150] Computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof. These programming languages ​​include object-oriented programming languages—such as Java, Smalltalk, and C++—and conventional procedural programming languages—such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0151] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0152] The modules described in the embodiments of the present invention can be implemented in software or hardware. The names of the modules do not necessarily limit the specific unit itself.

[0153] The readable storage medium provided by this invention is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described method for obtaining comprehensive fuel consumption values, thereby solving the technical problem of how to accurately obtain the comprehensive fuel consumption value of a 4DHT plug-in hybrid electric vehicle. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by this invention are the same as those of the comprehensive fuel consumption value acquisition method provided in the above embodiments, and will not be repeated here.

[0154] The above description is only a part of the embodiments of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the technical concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A method for obtaining comprehensive fuel consumption value, characterized in that, The method for obtaining the comprehensive fuel consumption value includes: The engine drive mode is detected, including: engine direct drive mode, EV direct drive mode, series drive mode and EVCT drive mode; The engine's operating status is obtained based on the driving method. The vehicle's energy consumption per unit mile and fuel consumption per unit mile are determined based on the engine's operating status. The comprehensive fuel consumption value is obtained based on the energy consumption value per unit mileage and the fuel consumption value per unit mileage; The step of determining the vehicle's energy consumption per unit mile and fuel consumption per unit mile based on the engine's operating status includes: When the operating state is driving state and power generation state, the total power consumption of the battery within the driving range is obtained. The unit mileage energy consumption value is obtained based on the ratio of the total energy consumption to the driving mileage; The fuel consumption in the driving state and the fuel consumption in the power generation state within the driving mileage are obtained, and the total fuel consumption is obtained by the sum of the fuel consumption in the driving state and the fuel consumption in the power generation state. The fuel consumption per unit mileage is obtained based on the ratio of the total fuel consumption to the mileage traveled. Prior to the step of obtaining the comprehensive fuel consumption value based on the unit mileage electricity consumption value and the unit mileage fuel consumption value, the following steps are included: Obtain the oil-to-electricity conversion coefficient; Accordingly, obtaining the comprehensive fuel consumption value based on the unit mileage electricity consumption value and the unit mileage fuel consumption value further includes: Obtain the sum of the unit mileage electricity consumption value and the unit mileage fuel consumption value, and the first ratio of the unit mileage electricity consumption value to the fuel-to-electricity conversion coefficient; The comprehensive fuel consumption value is obtained based on the difference between the sum and the first ratio. The step of obtaining the oil-to-electricity conversion coefficient includes: Obtain the vehicle power, drive motor power, generator power, engine specific fuel consumption rate, total engine power, and time integral within the stated driving mileage; The engine power generation power is obtained based on the difference between the total power and the vehicle power. Obtain the first product of the engine's power generation and the engine's specific fuel consumption rate; The engine power generation ratio is obtained based on the ratio of the first product to the total engine power. Obtain the second product of the engine's power generation ratio and the engine's power generation capacity; The amount of oil used for power generation is obtained based on the second product and the second ratio of the fuel density. Obtain the first sum of the power generated by the drive motor and the power generated by the generator; The total power generation of the motor is obtained by multiplying the first sum by the second product of the time integral. The oil-to-electricity conversion coefficient is obtained based on the third ratio of the total power generation of the motor to the amount of oil used for power generation.

2. The method for obtaining comprehensive fuel consumption value as described in claim 1, characterized in that, After the step of obtaining the engine's operating status according to the driving method, the following steps are included: When the operating state is power generation state, obtain the total power consumption of the battery within the driving range; The unit mileage energy consumption value is obtained based on the ratio of the total energy consumption to the driving mileage; The fuel consumption during the power generation state within the specified driving mileage is obtained as the total fuel consumption. The fuel consumption per unit mileage is obtained based on the ratio of the total fuel consumption to the mileage traveled.

3. The method for obtaining comprehensive fuel consumption value as described in claim 1, characterized in that, Prior to the step of detecting the engine's drive mode, the following steps are included: Shift the gears of the transmission; When the drive motor and generator corresponding to the operating gear are in the power generation state, return to the step of detecting the engine's drive mode.

4. The method for obtaining comprehensive fuel consumption value as described in claim 3, characterized in that, Before the step of switching the operating gear of the transmission, the following steps are included: Get the current battery status; When the current battery level does not meet the vehicle's power requirements, start the engine and return to the step of switching the transmission gear.

5. A comprehensive fuel consumption display device, characterized in that, The device includes: The drive detection module is used to detect the engine's drive mode, which includes: engine direct drive mode, EV direct drive mode, series drive mode, and EVCT drive mode. The status acquisition module is used to acquire the engine's operating status according to the driving method; The parameter acquisition module is used to determine the vehicle's energy consumption per unit mileage and fuel consumption per unit mileage based on the engine's operating status. The comprehensive acquisition module is used to acquire the comprehensive fuel consumption value based on the unit mileage electricity consumption value and the unit mileage fuel consumption value; The parameter acquisition module is further configured to: acquire the total battery power consumption within the driving range when the operating state is driving state and power generation state; acquire the unit mileage power consumption value based on the ratio of the total power consumption to the driving range; acquire the fuel consumption in the driving state and the fuel consumption in the power generation state within the driving range, and acquire the total fuel consumption by the sum of the fuel consumption in the driving state and the fuel consumption in the power generation state; and acquire the unit mileage fuel consumption value based on the ratio of the total fuel consumption to the driving range. The comprehensive acquisition module is also used to acquire the oil-to-electricity conversion coefficient; correspondingly, the step of acquiring the comprehensive fuel consumption value based on the unit mileage electricity consumption value and the unit mileage fuel consumption value further includes: acquiring the sum of the unit mileage electricity consumption value and the unit mileage fuel consumption value, and a first ratio of the unit mileage electricity consumption value to the oil-to-electricity conversion coefficient; and acquiring the comprehensive fuel consumption value based on the difference between the sum and the first ratio. The comprehensive acquisition module is further configured to acquire the vehicle power, drive motor power generation, generator power generation, engine specific fuel consumption rate, total engine power, and time integral within the driving mileage; acquire the engine power generation based on the difference between the total power and the vehicle power; acquire the first product of the engine power generation and the engine specific fuel consumption rate; acquire the engine specific fuel consumption rate based on the ratio of the first product to the total engine power; acquire the second product of the engine specific fuel consumption rate and the engine power generation; acquire the amount of fuel used for power generation based on the second product and the second ratio of fuel density; acquire the first sum of the drive motor power generation and the generator power generation; acquire the total motor power generation based on the second product of the first sum and the second time integral; and acquire the fuel-to-electricity conversion coefficient based on the third ratio of the total motor power generation to the amount of fuel used for power generation.

6. A comprehensive fuel consumption display device, characterized in that, The device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the method for obtaining the comprehensive fuel consumption value as described in any one of claims 1 to 4.

7. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the method for obtaining the comprehensive fuel consumption value as described in any one of claims 1 to 4.

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