Pure electric vehicle energy consumption analysis method and related equipment

Abstract

The invention relates to the technical field of vehicle control of new energy pure electric vehicles, and discloses a pure electric vehicle energy consumption analysis method and related equipment, and the method comprises the following steps: obtaining vehicle energy consumption state information; according to the energy consumption state information of the whole vehicle, a driving running energy consumption value, an air conditioner and battery temperature control energy consumption value, a low-voltage electric appliance energy consumption value and other energy consumption values are obtained through calculation; according to the calculated driving energy consumption value, the calculated air conditioner and battery temperature control energy consumption value, the calculated low-voltage electric appliance energy consumption value and the calculated other energy consumption values, the energy consumption ratio is calculated according to energy consumption distribution after self-charging, self-starting and self-zero-clearing; and sending the obtained energy consumption ratio result to a central controller for display. According to the method, the energy consumption state information of the whole vehicle is obtained, and the energy consumption values of driving running, air conditioner and battery temperature control, low-voltage electric appliances and other energy consumption values are calculated respectively, so that a user can clearly know the energy consumption conditions of the vehicle in the running process.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy pure electric vehicle vehicle control, and specifically provides a method for analyzing the energy consumption of a pure electric vehicle and related equipment. Background Art

[0002] The energy consumption and endurance of pure electric vehicles have long been the core pain points that consumers are closely concerned about, and at the same time, they are also the key technical indicators that major automobile manufacturers continuously optimize and improve. To address this challenge, the industry has explored and implemented various technical means directly aimed at energy conservation and consumption reduction.

[0003] These technical means cover many aspects of vehicle design, including but not limited to vehicle lightweighting to reduce overall energy consumption, optimizing the body structure to reduce wind resistance, improving the operating efficiency of the electric drive system, enhancing the energy efficiency of the air conditioning system, refining the vehicle energy management strategy, and optimizing the thermal management system. Although these measures theoretically help to reduce the energy consumption of pure electric vehicles, their implementation has brought problems such as extended R & D cycles and increased R & D costs. More critically, these technical means are difficult to achieve a large reduction in energy consumption in the short term, and thus it is difficult to quickly meet the urgent market demand for highly energy-efficient pure electric vehicles.

[0004] In addition, when users drive pure electric vehicles, they often cannot intuitively and accurately obtain the energy consumption information of the vehicle, especially the specific data and proportion of each energy consumption item. This lack of information transparency leads to a lack of pertinence and effectiveness when users try to save energy and reduce consumption, and they often can only operate blindly, which not only affects the driving experience of users but also limits the full play of the energy-saving potential of pure electric vehicles.

[0005] Therefore, how to accurately and real-time obtain the energy consumption information of pure electric vehicles, as well as the specific data and proportion of each energy consumption item, has become a technical problem that urgently needs to be solved. The solution to this problem is of great significance for improving the driving experience of users, promoting energy conservation and consumption reduction of pure electric vehicles, and promoting the sustainable development of the new energy vehicle industry. Summary of the Invention

[0006] The purpose of the present invention is to provide a method for analyzing the energy consumption of a pure electric vehicle and related equipment to solve the technical problem of how to calculate the energy consumption information of a pure electric vehicle.

[0007] The present invention is implemented through the following technical solutions: In the first aspect, the present invention provides a method for analyzing the energy consumption of a pure electric vehicle, including: Obtaining the vehicle energy consumption status information; Calculating the driving energy consumption value, the air conditioning and battery temperature control energy consumption value, the low-voltage electrical energy consumption value, and other energy consumption values respectively according to the vehicle energy consumption status information; According to the calculated driving energy consumption value, air conditioning and battery temperature control energy consumption value, low-voltage electrical appliance energy consumption value, and other energy consumption values, the energy consumption ratios are calculated according to the energy consumption distributions after self-charging, after self-starting, and after self-clearing respectively; Send the obtained energy consumption ratio results to the central control for display.

[0008] Preferably, the vehicle energy consumption status information includes the vehicle's AC and DC charging status, vehicle start status, energy consumption display clearing status, front and rear drive motor working voltage and current, air conditioning compressor working voltage and current, high-voltage heater PTC working voltage and current, obtaining the DC / DC high-voltage side working voltage and current, and power battery bus voltage and current.

[0009] Preferably, the calculation formula for the driving energy consumption value is as follows: E1 = dt+ dt where E1 is the driving energy consumption value; RMCU_CurrentHV is the actual current value of the rear motor, RMCU_VoltageHV is the actual voltage value of the rear motor; FMCU_IdcAct is the actual current value of the front motor, FMCU_UdcAct is the actual voltage value of the front motor; The calculation formula for the air conditioning and battery temperature control energy consumption value is as follows: E2 = dt+ dt where E2 is the energy consumption value of air conditioning and battery temperature control; is the actual current value of the air conditioning compressor, is the actual voltage value of the air conditioning compressor; is the actual current value of the high-voltage heater, is the actual voltage value of the high-voltage heater; the voltage and current of the compressor and the high-voltage heater are both Ethernet signals; The calculation formula for the low-voltage electrical appliance energy consumption value is as follows: E3 = dt where E3 is the low-voltage electrical appliance energy consumption value; DCDC_HvVolt is the DCDC high-voltage side voltage, DCDC_HVCurr is the DCDC high-voltage side current; The calculation formula for other energy consumption values is as follows: E4 = dt -E1 - E2 - E3 Among them, E4 is the value of other energy consumption; ;

[0010] Preferably, the recognition logic after self - charging is as follows: During the charging process, first determine the charging type of the electric vehicle, and keep each energy consumption value at the moment of starting charging unchanged during charging. After charging is completed, clear each energy consumption value and start the integral calculation again; the charging type is fast charging or slow charging; When the vehicle is first produced or has never been charged after the VCU software is refreshed, after waking up from the VCU and completing initialization, start calculating each energy consumption value by integral, and continuously monitor the charging status until the first charging is recognized as completed, and then recalculate the energy consumption value cumulatively; The recognition logic after self - startup is as follows: Each time the VCU recognizes that the power mode changes from KL15ON or Comfort power - off to OFF, the VCU clears each energy consumption value and starts the integral calculation again, and starts recording energy consumption data again from the moment when the power mode changes back to KL15ON or Comfort; After the vehicle is first produced or the VCU software is refreshed, after the initialization of waking up from the VCU is completed, start calculating each energy consumption value after self - startup by integral until it is recognized that the power mode changes from KL15ON or Comfort power - off to OFF, then recalculate the energy consumption value after self - startup cumulatively, and the VCU needs to keep each energy consumption value at the moment of starting charging unchanged during charging; The recognition logic after self - clearing is as follows: Each time the VCU receives the operation of clearing the energy consumption distribution display sent by the in - vehicle central control screen ICC, the VCU clears each energy consumption value and starts the integral calculation again; After the vehicle is first produced or the VCU software is refreshed, after the initialization of waking up from the VCU is completed, start calculating each energy consumption value after self - clearing by integral until it is recognized that the in - vehicle central control screen ICC sends the operation of clearing the energy consumption distribution display, then recalculate the energy consumption value after self - startup cumulatively, and the VCU needs to keep each energy consumption value at the moment of starting charging unchanged during charging.

[0011] Preferably, the calculation formula for the energy consumption ratio of the driving energy consumption value calculated according to the energy consumption distribution after self - charging, self - startup, and self - clearing is as follows:

[0012] The calculation formula for the energy consumption ratio of the air - conditioner and battery temperature - control energy consumption value calculated according to the energy consumption distribution after self - charging, self - startup, and self - clearing is as follows:

[0013] The calculation formula for the energy consumption ratio of the low-voltage electrical appliances is obtained according to the energy consumption distribution after self-charging, after self-starting, and after self-clearing, as follows:

[0014] The calculation formula for the energy consumption ratio of the other energy consumption values is obtained according to the energy consumption distribution after self-charging, after self-starting, and after self-clearing, as follows:

[0015] Among them, E1 is the energy consumption value for driving; E2 is the energy consumption value for air conditioning and battery temperature control; E3 is the energy consumption value of low-voltage electrical appliances; E4 is the other energy consumption values.

[0016] Preferably, when the vehicle is driving on a long downhill road condition, that is, when the cumulative driving energy consumption of the VCU ≤ 0 Kwh, the energy consumption ratios of the driving energy consumption value, the air conditioning and battery temperature control energy consumption value, the low-voltage electrical appliance energy consumption value, and the other energy consumption values, which are calculated according to the energy consumption distribution after self-charging, after self-starting, and after self-clearing, are adjusted as follows: The energy consumption ratio of the driving energy consumption value, which is calculated according to the energy consumption distribution after self-charging, after self-starting, and after self-clearing, is: ; The energy consumption ratio of the air conditioning and battery temperature control energy consumption value, which is calculated according to the energy consumption distribution after self-charging, after self-starting, and after self-clearing, is:

[0017] The energy consumption ratio of the low-voltage electrical appliance energy consumption value, which is calculated according to the energy consumption distribution after self-charging, after self-starting, and after self-clearing, is:

[0018] The energy consumption ratio of the other energy consumption values, which is calculated according to the energy consumption distribution after self-charging, after self-starting, and after self-clearing, is:

[0019] Among them, E1 is the driving energy consumption value; E2 is the energy consumption value for air conditioning and battery temperature control; E3 is the energy consumption value of low-voltage electrical appliances; E4 is the other energy consumption values.

[0020] Preferably, in the step of sending the obtained energy consumption ratio results to the central control for display, the energy consumption signals of the driving energy consumption value, the air conditioning and battery temperature control energy consumption value, the low-voltage electrical appliance energy consumption value, and the other energy consumption values after self-charging, after self-starting, and after self-clearing are sent to the central control for display through the VCU.

[0021] In a second aspect, the present invention also provides a pure electric vehicle energy consumption analysis system, including: An energy consumption status information acquisition module, configured to acquire the overall vehicle energy consumption status information; An energy consumption value calculation module, configured to calculate a driving energy consumption value, an air conditioner and battery temperature control energy consumption value, a low-voltage electrical appliance energy consumption value, and other energy consumption values respectively according to the overall vehicle energy consumption status information; An energy consumption ratio analysis module, configured to calculate energy consumption ratios respectively according to the driving energy consumption value, the air conditioner and battery temperature control energy consumption value, the low-voltage electrical appliance energy consumption value, and other energy consumption values calculated, according to the energy consumption distributions after self-charging, after self-starting, and after self-clearing; A data display module, configured to send the obtained energy consumption ratio result to the central control for display.

[0022] Thirdly, the present invention further provides a mobile terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the pure electric vehicle energy consumption analysis method as described above are implemented.

[0023] Fourthly, the present invention further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps of the pure electric vehicle energy consumption analysis method as described above are implemented.

[0024] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention provides a pure electric vehicle energy consumption analysis method. By acquiring the overall vehicle energy consumption status information and calculating the energy consumption values of driving, air conditioner and battery temperature control, low-voltage electrical appliances, and others respectively, it enables users to clearly understand the energy consumption situations of various items during vehicle driving. This refined display of energy consumption data greatly improves the transparency of energy consumption information, allowing users to intuitively see the specific values of various energy consumptions. After obtaining detailed energy consumption data, users can adjust their driving habits or vehicle usage methods accordingly to achieve the purpose of energy conservation and consumption reduction.

[0025] Furthermore, the present invention not only provides energy consumption data, but also calculates energy consumption ratios according to different time periods after self-charging, after self-starting, and after self-clearing, helping users to more comprehensively understand the vehicle's energy consumption situation. This dynamic and real-time energy consumption monitoring enables users to adjust strategies in a timely manner according to their driving habits and vehicle status, thereby optimizing the driving experience.

[0026] Furthermore, the present invention reveals the detailed usage destination of electric energy during the actual use of pure electric vehicles, enabling the realization of the electric energy used for motor-driven driving and its proportion, the electric energy consumed by air conditioners and battery temperature control and their proportions, and the electric energy consumed by low-voltage electrical appliances and their proportions. At the same time, starting from the actual multi-scenario vehicle use of users, it identifies and obtains the electric energy usage of various vehicle items in three scenarios after self-starting, after self-charging, and after self-clearing, and visually displays them on the central control large screen respectively, which can greatly alleviate the user's anxiety about vehicle power consumption and endurance during actual vehicle use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a flowchart of the energy consumption analysis method for a pure electric vehicle in an embodiment of the present invention; Figure 2 is a schematic diagram of the principle of the energy consumption analysis system for a pure electric vehicle in an embodiment of the present invention; In the figure: 1. Energy consumption status information acquisition module; 2. Energy consumption value calculation module; 3. Energy consumption proportion analysis module; 4. Data display module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] The purpose of the present invention is to provide a method and related equipment for analyzing the energy consumption of pure electric vehicles to solve the technical problem of how to calculate the energy consumption information of pure electric vehicles.

[0030] The following further describes the present invention in detail with reference to the accompanying drawings: Embodiment 1 Refer to Figure 1 , in an embodiment of the present invention, a method for analyzing the energy consumption of a pure electric vehicle is provided, including: Step 1, obtain the energy consumption status information of the whole vehicle; Specifically, the energy consumption status information of the whole vehicle includes the AC and DC charging status of the vehicle, the vehicle start status, the energy consumption display clearing status, the working voltage and current of the front and rear drive motors, the working voltage and current of the air conditioner compressor, the working voltage and current of the high-voltage heater PTC, the working voltage and current of the DC / DC high-voltage side, and the battery bus voltage and current.

[0031] Step 2: Calculate the driving energy consumption value, the air conditioner and battery temperature control energy consumption value, the low-voltage electrical appliance energy consumption value, and other energy consumption values respectively according to the vehicle energy consumption status information; Specifically, the calculation formula for the driving energy consumption value is as follows: E1 = dt+ dt where E1 is the driving energy consumption value; RMCU_CurrentHV is the actual current value of the rear motor, and RMCU_VoltageHV is the actual voltage value of the rear motor; FMCU_IdcAct is the actual current value of the front motor, and FMCU_UdcAct is the actual voltage value of the front motor; after calculating the driving power, the VCU needs to convert the unit to Kw and then integrate; The calculation formula for the air conditioner and battery temperature control energy consumption value is as follows: E2 = dt+ dt where E2 is the energy consumption value of the air conditioner and battery temperature control; is the actual current value of the air conditioner compressor, is the actual voltage value of the air conditioner compressor; is the actual current value of the high-pressure heater, is the actual voltage value of the high-pressure heater; the voltage and current of the compressor and the high-pressure heater are both Ethernet signals; after calculating the air conditioner and battery temperature control power, the VCU needs to convert the unit to Kw and then integrate; The calculation formula for the low-voltage electrical appliance energy consumption value is as follows: E3 = dt where E3 is the low-voltage electrical appliance energy consumption value; DCDC_HvVolt is the DCDC high-side voltage, and DCDC_HVCurr is the DCDC high-side current; after calculating the low-voltage electrical appliance power, the VCU needs to convert the unit to Kw and then integrate; The calculation formula for other energy consumption values is as follows: E4 = dt -E1 - E2 - E3 where E4 is the other energy consumption value; ;

[0032] Step 3: Calculate the energy consumption ratios based on the calculated driving energy consumption value, air conditioning and battery temperature control energy consumption value, low-voltage electrical appliance energy consumption value, and other energy consumption values respectively according to the energy consumption distributions after self-charging, after self-starting, and after self-clearing. Specifically, the recognition logic after self-charging is as follows: During the charging process, first determine the charging type of the electric vehicle, and keep each energy consumption value at the start moment of charging unchanged during charging. After charging ends, clear each energy consumption value and start integral calculation again; the charging type is fast charging or slow charging. When the vehicle is first manufactured or has never been charged after the VCU software is refreshed, after waking up from the VCU and completing initialization, start integral calculation of each energy consumption value, and continuously monitor the charging status until the first charging is recognized as completed, and then recalculate the energy consumption value cumulatively. The recognition logic after self-starting is as follows: Each time the VCU recognizes that the power mode changes from KL15ON or Comfort power-off to OFF, the VCU clears each energy consumption value and starts integral calculation again, and starts recording energy consumption data again from when the power mode changes back to KL15ON or Comfort. After the vehicle is first manufactured or the VCU software is refreshed, after the VCU wakes up and initialization is completed, start integral calculation of each energy consumption value after self-starting until it is recognized that the power mode changes from KL15ON or Comfort power-off to OFF, and then recalculate the energy consumption value after self-starting cumulatively. And the VCU needs to keep each energy consumption value at the start moment of charging unchanged during charging. The recognition logic after self-clearing is as follows: Each time the VCU receives an operation of clearing the energy consumption distribution display sent by the central control screen ICC, the VCU clears each energy consumption value and starts integral calculation again. After the vehicle is first manufactured or the VCU software is refreshed, after the VCU wakes up and initialization is completed, start integral calculation of each energy consumption value after self-clearing until it is recognized that the central control screen ICC sends an operation of clearing the energy consumption distribution display, and then recalculate the energy consumption value after self-starting cumulatively. And the VCU needs to keep each energy consumption value at the start moment of charging unchanged during charging.

[0033] Specifically, the calculation formula for the energy consumption ratio of the driving energy consumption value calculated according to the energy consumption distributions after self-charging, after self-starting, and after self-clearing is as follows:

[0034] Corresponding to the Ethernet service VCU_Energyflow / notifyEngyConsuInfo, Ethernet signal EngyConsuInfo / EngyConsuInfo_SinceChargeON, VCU_EngyConsuDrive; The calculation formula for the energy consumption ratio of the air conditioner and battery temperature control energy consumption value calculated according to the energy consumption distribution after self - charging, after self - starting, and after self - clearing is as follows:

[0035] Corresponding to the Ethernet service VCU_Energyflow / notifyEngyConsuInfo, Ethernet signal EngyConsuInfo / EngyConsuInfo_SinceChargeON, VCU_EngyConsuThermal; The calculation formula for the energy consumption ratio of the low - voltage electrical appliance energy consumption value calculated according to the energy consumption distribution after self - charging, after self - starting, and after self - clearing is as follows:

[0036] Corresponding to the Ethernet service VCU_Energyflow / notifyEngyConsuInfo, Ethernet signal EngyConsuInfo / EngyConsuInfo_SinceChargeON, VCU_EngyConsuLv; The calculation formula for the energy consumption ratio of the other energy consumption values calculated according to the energy consumption distribution after self - charging, after self - starting, and after self - clearing is as follows:

[0037] Corresponding to the Ethernet service VCU_Energyflow / notifyEngyConsuInfo, Ethernet signal EngyConsuInfo / EngyConsuInfo_SinceChargeON, VCU_EngyConsuOthers; Among them, E1 is the energy consumption value for driving; E2 is the energy consumption value of the air conditioner and battery temperature control; E3 is the energy consumption value of low - voltage electrical appliances; E4 is the other energy consumption value.

[0038] Among them, when the vehicle is driving on a long downhill road condition, that is, when the cumulative driving energy consumption of the VCU ≤ 0 Kwh, the energy consumption ratios of the driving energy consumption value, the air conditioner and battery temperature control energy consumption value, the low - voltage electrical appliance energy consumption value, and the other energy consumption values calculated according to the energy consumption distribution after self - charging, after self - starting, and after self - clearing are adjusted as follows: The energy consumption ratio of the driving energy consumption value calculated according to the energy consumption distribution after self - charging, after self - starting, and after self - clearing is as follows: ; Corresponding to the Ethernet service VCU_Energyflow / notifyEngyConsuInfo, Ethernet signals EngyConsuInfo / EngyConsuInfo_SinceChargeON, VCU_EngyConsuDrive; The energy consumption ratio of the air - conditioner and battery temperature - control energy consumption value calculated according to the energy consumption distribution after self - charging, after self - starting, and after self - clearing is as follows:

[0039] Corresponding to the Ethernet service VCU_Energyflow / notifyEngyConsuInfo, Ethernet signals EngyConsuInfo / EngyConsuInfo_SinceChargeON, VCU_EngyConsuThermal; The energy consumption ratio of the low - voltage electrical appliance energy consumption value calculated according to the energy consumption distribution after self - charging, after self - starting, and after self - clearing is as follows:

[0040] Corresponding to the Ethernet service VCU_Energyflow / notifyEngyConsuInfo, Ethernet signals EngyConsuInfo / EngyConsuInfo_SinceChargeON, VCU_EngyConsuLv; The energy consumption ratio of the other energy consumption value calculated according to the energy consumption distribution after self - charging, after self - starting, and after self - clearing is as follows:

[0041] Corresponding to the Ethernet service VCU_Energyflow / notifyEngyConsuInfo, Ethernet signals EngyConsuInfo / EngyConsuInfo_SinceChargeON, VCU_EngyConsuOthers; Among them, E1 is the driving energy consumption value; E2 is the energy consumption value of the air - conditioner and battery temperature - control; E3 is the low - voltage electrical appliance energy consumption value; E4 is the other energy consumption value.

[0042] In this embodiment, the VCU shall check that the sum of each proportion is 100%. The error caused by rounding can be included in the "others" proportion. Only when the total energy consumption value , will the VCU start to calculate the proportion of various energy consumptions; before the total energy consumption value reaches 0.2 Kwh, the proportion values of each energy consumption are all sent as invalid value 0xFF. The VCU shall store the power-off value of each energy consumption proportion for sending valid signal values immediately after power-on and wake-up.

[0043] Step 4: Send the obtained energy consumption proportion result to the central control for display.

[0044] Specifically, the energy consumption signals of the driving energy consumption value, air conditioning and battery temperature control energy consumption value, low-voltage electrical energy consumption value, and other energy consumption values after self-charging, after self-starting, and after self-clearing are sent to the central control through the VCU for display.

[0045] The ICC shall receive the EngyConsuInfo / EngyConsuInfo_SinceChargeON and VCU_EngyConsuDrive signals sent by the VCU to display the proportion of "driving" energy consumption after self-charging, with a range of 0 - 100%. The ICC shall receive the EngyConsuInfo / EngyConsuInfo_SinceChargeON and VCU_EngyConsuThermal signals sent by the VCU to display the proportion of "air conditioning & battery temperature control" energy consumption after self-charging; the range is 0 - 100%. The ICC shall receive the EngyConsuInfo / EngyConsuInfo_SinceChargeON and VCU_EngyConsuLv signals sent by the VCU to display the proportion of "low-voltage electrical appliances" energy consumption after self-charging; the range is 0 - 100%. The ICC shall receive the EngyConsuInfo / EngyConsuInfo_SinceChargeON and VCU_EngyConsuOthers signals sent by the VCU to display the proportion of "others" energy consumption after self-charging; the range is 0 - 100%. The ICC shall receive the EngyConsuInfo / EngyConsuInfo_SincePowerON and VCU_EngyConsuDrive signals sent by the VCU to display the proportion of "driving" energy consumption after self-starting, with a range of 0 - 100%. The ICC shall receive the EngyConsuInfo / EngyConsuInfo_SincePowerON and VCU_EngyConsuThermal signals sent by the VCU to display the energy consumption ratio of "Air Conditioning & Battery Temperature Control" since startup; the range is 0 - 100%; The ICC shall receive the EngyConsuInfo / EngyConsuInfo_SincePowerON and VCU_EngyConsuLv signals sent by the VCU to display the energy consumption ratio of "Low - voltage Electrical Appliances" since startup; the range is 0 - 100%; The ICC shall receive the EngyConsuInfo / EngyConsuInfo_SincePowerON and VCU_EngyConsuOthers signals sent by the VCU to display the energy consumption ratio of "Others" since startup; the range is 0 - 100%; The ICC shall receive the EngyConsuInfo / EngyConsuInfo_SinceResetON and VCU_EngyConsuDrive signals sent by the VCU to display the energy consumption ratio of "Driving" since reset; the range is 0 - 100%; The ICC shall receive the EngyConsuInfo / EngyConsuInfo_SinceResetON and VCU_EngyConsuThermal signals sent by the VCU to display the energy consumption ratio of "Air Conditioning & Battery Temperature Control" since reset; the range is 0 - 100%; The ICC shall receive the EngyConsuInfo / EngyConsuInfo_SinceResetON and VCU_EngyConsuLv signals sent by the VCU to display the energy consumption ratio of "Low - voltage Electrical Appliances" since reset; the range is 0 - 100%; The ICC shall receive the EngyConsuInfo / EngyConsuInfo_SinceResetON and VCU_EngyConsuOthers signals sent by the VCU to display the energy consumption ratio of "Others" since reset; the range is 0 - 100%; As long as the ICC receives the relevant signals from the VCU, it shall constantly display the corresponding signal values on the large screen, and the display refresh frequency is 10S; if it fails to receive the corresponding signal (losing 20 cycles) or receives an invalid value, it shall display as --.-%, and the corresponding bar chart / histogram shall not be displayed.

[0046] In this embodiment, the energy consumption distribution display is used to inform the user of the specific whereabouts of the vehicle's energy consumption; The energy consumption of a real vehicle is defined as four categories: driving energy consumption, air conditioning & battery temperature control energy consumption, low-voltage electrical appliance energy consumption, and other energy consumption; it is also divided into energy consumption distribution after "self-charging", energy consumption distribution after "self-starting", and energy consumption distribution after "self-clearing". The energy consumption values ​​and proportions of each category are calculated by the vehicle controller VCU; Energy consumption distribution is displayed on the central control screen - Energy Management - Energy Consumption Statistics - Energy Consumption Information Display page; the page only displays the proportion of each type of energy consumption in the form of a bar chart; After users learn about the energy consumption ratio of the actual vehicle under working scenarios such as "after self-charging", "after self-starting" and "after self-clearing" on the large screen, they can clearly understand the destination of the vehicle's electrical energy, thereby guiding users to use the vehicle's electrical energy more reasonably according to actual needs.

[0047] In summary, the energy consumption analysis method of a pure electric vehicle provided in this embodiment obtains the energy consumption status information of the whole vehicle and calculates the driving, air conditioning and battery temperature control, low-voltage electrical appliances and other energy consumption values ​​respectively, so that the user can clearly understand the various energy consumption conditions of the vehicle during driving. This detailed display of energy consumption data greatly improves the transparency of energy consumption information, allowing users to intuitively see the specific values ​​of various energy consumption. After obtaining detailed energy consumption data, users can adjust their driving habits or vehicle usage methods in a targeted manner based on these data to achieve the purpose of energy saving and consumption reduction.

[0048] Example 2 according to Figure 2 As shown, the present invention also provides an energy consumption analysis system for a pure electric vehicle, comprising: Energy consumption status information acquisition module 1, used to obtain the energy consumption status information of the whole vehicle; Energy consumption value calculation module 2, used to calculate the driving energy consumption value, air conditioning and battery temperature control energy consumption value, low-voltage electrical energy consumption value and other energy consumption values ​​according to the energy consumption status information of the whole vehicle; The energy consumption ratio analysis module 3 is used to calculate the energy consumption ratio according to the calculated driving energy consumption value, air conditioning and battery temperature control energy consumption value, low-voltage electrical appliance energy consumption value and other energy consumption values ​​according to the energy consumption distribution after self-charging, self-starting and self-clearing; The data display module 4 is used to send the obtained energy consumption percentage results to the central control for display.

[0049] Example 3 The present invention also provides a mobile terminal, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, such as a pure electric vehicle energy consumption analysis program.

[0050] When the processor executes the computer program, it implements the steps of the above-mentioned pure electric vehicle energy consumption analysis method. For example: Obtain the vehicle's overall energy consumption status information; Respectively calculate the driving energy consumption value, air conditioning and battery temperature control energy consumption value, low-voltage electrical appliance energy consumption value, and other energy consumption values based on the vehicle's overall energy consumption status information; Respectively calculate the energy consumption ratios according to the energy consumption distributions after self-charging, after self-starting, and after self-clearing based on the calculated driving energy consumption value, air conditioning and battery temperature control energy consumption value, low-voltage electrical appliance energy consumption value, and other energy consumption values; Send the obtained energy consumption ratio results to the central control for display.

[0051] Alternatively, when the processor executes the computer program, it implements the functions of each module in the above system. For example: The energy consumption status information acquisition module 1 is used to obtain the vehicle's overall energy consumption status information; The energy consumption value calculation module 2 is used to respectively calculate the driving energy consumption value, air conditioning and battery temperature control energy consumption value, low-voltage electrical appliance energy consumption value, and other energy consumption values based on the vehicle's overall energy consumption status information; The energy consumption ratio analysis module 3 is used to respectively calculate the energy consumption ratios according to the energy consumption distributions after self-charging, after self-starting, and after self-clearing based on the calculated driving energy consumption value, air conditioning and battery temperature control energy consumption value, low-voltage electrical appliance energy consumption value, and other energy consumption values; The data display module 4 is used to send the obtained energy consumption ratio results to the central control for display.

[0052] Exemplarily, the computer program can be divided into one or more modules / units. The one or more modules / units are stored in the memory and executed by the processor to complete the present invention. The one or more modules / units can be a series of computer program instruction segments capable of performing specific functions, and these instruction segments are used to describe the execution process of the computer program in the mobile terminal.

[0053] For example, the computer program can be divided into the energy consumption status information acquisition module 1, the energy consumption value calculation module 2, the energy consumption ratio analysis module 3, and the data display module 4; The specific functions of each module are as follows: The energy consumption status information acquisition module 1 is used to obtain the vehicle's overall energy consumption status information; The energy consumption value calculation module 2 is used to respectively calculate the driving energy consumption value, air conditioning and battery temperature control energy consumption value, low-voltage electrical appliance energy consumption value, and other energy consumption values based on the vehicle's overall energy consumption status information; The energy consumption ratio analysis module 3 is used to calculate the energy consumption ratio according to the calculated driving energy consumption value, air conditioner and battery temperature control energy consumption value, low-voltage electrical appliance energy consumption value, and other energy consumption values respectively according to the energy consumption distribution after self-charging, after self-starting, and after self-clearing; The data display module 4 is used to send the obtained energy consumption ratio result to the central control for display.

[0054] The mobile terminal can be a computing device such as a desktop computer, notebook, palm computer, and cloud server. The mobile terminal may include, but is not limited to, a processor and a memory.

[0055] The processor may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The processor is the control center of the mobile terminal, and connects various parts of the entire mobile terminal through various interfaces and lines.

[0056] The memory can be used to store the computer program and / or module. The processor realizes various functions of the mobile terminal by running or executing the computer program and / or module stored in the memory, and calling the data stored in the memory.

[0057] The memory may mainly include a program storage area and a data storage area. Among them, the program storage area may store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area may store data created according to the use of the mobile phone (such as audio data, phone book, etc.). In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0058] Embodiment 4 The present invention also provides a computer-readable storage medium storing a computer program, which when executed by a processor, implements the steps of the method for analyzing energy consumption of a pure electric vehicle.

[0059] If the modules / units integrated in the mobile terminal are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.

[0060] Based on such understanding, all or part of the processes in the above method of the present invention can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above method for aggregating and strengthening learning resource scheduling can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc.

[0061] The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc.

[0062] It should be noted that the content included in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications or equivalent substitutions can still be made to the specific embodiments of the present invention. Any modification or equivalent substitution that does not depart from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A method for analyzing energy consumption of a pure electric vehicle, characterized in that: include: Obtain the energy consumption status information of the whole vehicle; According to the energy consumption status information of the whole vehicle, the driving energy consumption value, the air conditioning and battery temperature control energy consumption value, the low-voltage electrical appliance energy consumption value and other energy consumption values ​​are calculated respectively; The energy consumption ratio is calculated based on the calculated driving energy consumption value, air conditioning and battery temperature control energy consumption value, low-voltage electrical appliance energy consumption value and other energy consumption values ​​according to the energy consumption distribution after self-charging, self-starting and self-clearing; The obtained energy consumption percentage results are sent to the central control for display.

2. A pure electric vehicle energy consumption analysis method according to claim 1, characterized in that: The vehicle energy consumption status information includes the vehicle AC and DC charging status, vehicle startup status, energy consumption display clear status, front and rear drive motor operating voltage and current, air conditioning compressor operating voltage and current, high-voltage heater PTC operating voltage and current, DC / DC high-voltage side operating voltage and current, and power battery bus voltage and current.

3. The method for analyzing energy consumption of a pure electric vehicle according to claim 1, characterized in that: The calculation formula of the driving energy consumption value is as follows: E1= dt+ dt Among them, E1 is the driving energy consumption value; RMCU_CurrentHV is the actual current value of the rear motor, RMCU_VoltageHV is the actual voltage value of the rear motor; FMCU_IdcAct is the actual current value of the front motor, FMCU_UdcAct is the actual voltage value of the front motor; The calculation formula for the air conditioning and battery temperature control energy consumption value is as follows: E2= dt+ dt Among them, E2 is the energy consumption value of air conditioning and battery temperature control; is the actual current value of the air conditioning compressor, is the actual voltage value of the air conditioning compressor; is the actual current value of the high voltage heater, is the actual voltage value of the high-voltage heater; the voltage and current of the compressor and the high-voltage heater are both Ethernet signals; The calculation formula of the energy consumption value of the low-voltage electrical appliance is as follows: E3= dt Among them, E3 is the energy consumption value of low-voltage electrical appliances; DCDC_HvVolt is the voltage on the high-voltage side of DCDC, and DCDC_HVCurr is the current on the high-voltage side of DCDC; The calculation formulas for other energy consumption values ​​are as follows: E4= dt -E1-E2-E3 Among them, E4 is other energy consumption value; ; 。 4. A pure electric vehicle energy consumption analysis method according to claim 1, characterized in that: The identification logic after self-charging is as follows: During the charging process, the charging type of the electric vehicle is first determined, and the energy consumption values ​​at the start of charging are maintained unchanged during the charging period. After the charging is completed, the energy consumption values ​​are reset to zero and the integral calculation is restarted; the charging type is fast charging or slow charging; When the vehicle is shipped for the first time or has never been charged since the VCU software was refreshed, the VCU will wake up and initialize, start to calculate the energy consumption values, and continue to monitor the charging status until the first charge is recognized to be completed, and then recalculate the energy consumption values; The identification logic after the self-startup is as follows: Each time the VCU recognizes that the power mode changes from KL15ON or Comfort to OFF, the VCU resets each energy consumption value and restarts the integral calculation, and starts recording energy consumption data again when the power mode changes to KL15ON or Comfort again; When the VCU is first shipped from the factory or after the VCU software is refreshed, the energy consumption values ​​after startup must be calculated and accumulated from the moment the VCU wakes up and initializes until the power mode is recognized to be off from KL15ON or Comfort. The energy consumption values ​​after startup are calculated and accumulated again, and the VCU must maintain the energy consumption values ​​at the start of charging during charging. The identification logic after self-clearing is as follows: Every time the VCU receives an operation to clear the energy consumption distribution display from the central control screen ICC, the VCU will clear each energy consumption value and restart the integral calculation; When leaving the factory for the first time or after the VCU software is refreshed, it is necessary to start integrating and calculating the energy consumption values ​​since zeroing after the VCU wake-up initialization is completed, until the energy consumption distribution display clearing operation sent by the central control large screen ICC is recognized, and then the energy consumption values ​​since startup are recalculated cumulatively, and the VCU needs to maintain the energy consumption values ​​at the start of charging unchanged during charging.

5. The method for analyzing energy consumption of a pure electric vehicle according to claim 1, characterized in that: The driving energy consumption value is calculated according to the energy consumption distribution after self-charging, self-starting and self-clearing to obtain the energy consumption ratio as follows: The energy consumption values ​​of the air conditioner and battery temperature control are calculated according to the energy consumption distribution after self-charging, self-starting and self-clearing to obtain the energy consumption ratio as follows: The energy consumption value of the low-voltage electrical appliance is calculated according to the energy consumption distribution after self-charging, self-starting and self-clearing to obtain the energy consumption ratio as follows: The energy consumption ratio of the other energy consumption values ​​is calculated according to the energy consumption distribution after self-charging, self-starting and self-clearing as follows: Among them, E1 is the energy consumption value for driving; E2 is the energy consumption value for air conditioning and battery temperature control; E3 is the energy consumption value for low-voltage electrical appliances; and E4 is other energy consumption values.

6. A pure electric vehicle energy consumption analysis method according to claim 1, characterized in that: When the vehicle is traveling on a long downhill road, that is, when the VCU accumulated driving energy consumption is ≤0 Kwh, the driving energy consumption value, air conditioning and battery temperature control energy consumption value, low-voltage electrical appliance energy consumption value and other energy consumption values ​​are adjusted according to the energy consumption distribution after self-charging, self-starting and self-clearing respectively. The energy consumption ratio of the driving energy consumption value calculated according to the energy consumption distribution after self-charging, self-starting and self-clearing is: ; The energy consumption values ​​of the air conditioner and battery temperature control are calculated according to the energy consumption distribution after self-charging, self-starting and self-clearing to obtain the energy consumption proportion: The energy consumption value of the low-voltage electrical appliance is calculated according to the energy consumption distribution after self-charging, self-starting and self-clearing to obtain the energy consumption ratio: The energy consumption ratio of the other energy consumption values ​​calculated according to the energy consumption distribution after self-charging, self-starting and self-clearing is: Among them, E1 is the energy consumption value for driving; E2 is the energy consumption value for air conditioning and battery temperature control; E3 is the energy consumption value for low-voltage electrical appliances; and E4 is other energy consumption values.

7. A pure electric vehicle energy consumption analysis method according to claim 1, characterized in that: In the step of sending the obtained energy consumption percentage results to the central control for display, energy consumption signals of driving energy consumption values ​​after self-charging, self-starting and self-clearing, air conditioning and battery temperature control energy consumption values, low-voltage electrical appliance energy consumption values ​​and other energy consumption values ​​are sent to the central control for display through the VCU.

8. A pure electric vehicle energy consumption analysis system, characterized in that: include: Energy consumption status information acquisition module, used to obtain the energy consumption status information of the whole vehicle; The energy consumption value calculation module is used to calculate the driving energy consumption value, air conditioning and battery temperature control energy consumption value, low-voltage electrical appliance energy consumption value and other energy consumption values ​​according to the energy consumption status information of the whole vehicle; The energy consumption ratio analysis module is used to calculate the energy consumption ratio according to the energy consumption distribution after self-charging, self-starting and self-clearing based on the calculated driving energy consumption value, air conditioning and battery temperature control energy consumption value, low-voltage electrical appliance energy consumption value and other energy consumption values; The data display module is used to send the obtained energy consumption percentage results to the central control for display.

9. A mobile terminal comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the pure electric vehicle energy consumption analysis method as described in any one of claims 1-7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the pure electric vehicle energy consumption analysis method as described in any one of claims 1 to 7 are implemented.

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