Method for monitoring power consumption of electric appliance and related equipment

Abstract

The invention provides an electric appliance power consumption monitoring method and related equipment, and in the electric appliance power consumption real-time monitoring method provided by the invention, a preset power consumption calculation strategy can be determined based on a specific power consumption type of a vehicle-mounted electric appliance in a vehicle; power consumption influence factors of the vehicle-mounted electric appliance and a power consumption calculation relational expression formed based on the power consumption influence factors can be obtained through the preset power consumption calculation strategy, and finally the first current power consumption of the vehicle-mounted electric appliance can be determined based on the preset power consumption calculation strategy. When the current power consumption of the vehicle-mounted electric appliance needs to be calculated, the current power consumption of the electric appliance can be determined through the power consumption influence factor related to the vehicle-mounted electric appliance and the corresponding power consumption calculation relational expression, the power consumption of the electric appliance does not need to be obtained in a mode of distributing MOS devices any more, and the power consumption monitoring efficiency of the electric appliance is improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle monitoring and control, and in particular to a method for monitoring the power consumption of electrical appliances and related equipment. Background Art

[0002] As the market share of new energy vehicles gradually increases, the endurance of new energy vehicles has gradually become one of the capabilities that users pay most attention to. The endurance of new energy vehicles is affected by many factors, such as vehicle weight, battery capacity, driving style, and power consumption of on-board electrical appliances. Among them, the power consumption of on-board electrical appliances specifically refers to the electrical appliances responsible for realizing the electrical functions of the vehicle, such as on-board refrigerators, on-board navigation systems, and on-board heaters. The power consumption of on-board electrical appliances is one of the important factors affecting the endurance of the vehicle. Therefore, real-time monitoring and control of the power consumption of on-board electrical appliances is particularly important for improving the endurance of new energy vehicles.

[0003] In the current power consumption monitoring technology for vehicle-mounted electrical appliances, MOS (Metal-Oxide-Semiconductor Device) devices are usually used to detect the current flowing through the electrical appliance to determine its power consumption. Although this method can monitor the power consumption of each vehicle-mounted electrical appliance, a separate MOS device needs to be allocated for each vehicle-mounted electrical appliance. Each newly added vehicle-mounted electrical appliance needs to be separately allocated an additional MOS device for power consumption monitoring, and the power consumption monitoring efficiency is low.

[0004] Therefore, how to solve the problem of low efficiency of power consumption monitoring of electrical appliances in the prior art has become a technical problem that technical personnel in this field need to solve urgently. Summary of the invention

[0005] Based on the above problems, in order to solve the problem of low efficiency in power consumption monitoring of electrical appliances in the prior art, the present application provides a method for monitoring power consumption of electrical appliances and related equipment.

[0006] The embodiments of the present application disclose the following technical solutions:

[0007] In a first aspect, the present application discloses a method for monitoring power consumption of electrical appliances, which is applied to a vehicle including a plurality of on-board electrical appliances, and the method comprises:

[0008] The power consumption types of the multiple vehicle-mounted electrical appliances are divided to obtain power consumption categories corresponding to the multiple vehicle-mounted electrical appliances; the power consumption categories include: dynamic electrical appliances and steady-state electrical appliances; the steady-state electrical appliances are electrical appliances whose working power variation amplitude under preset operating conditions is less than a preset threshold; the dynamic electrical appliances are electrical appliances whose working power variation amplitude under the preset operating conditions is not less than the preset threshold;

[0009] For a first on-board electrical appliance among the plurality of on-board electrical appliances, a preset power consumption calculation strategy of the first on-board electrical appliance is determined based on the power consumption category of the first on-board electrical appliance; the preset power consumption calculation strategy is used to represent the power consumption influencing factor of the on-board electrical appliance and a power consumption calculation relationship formed based on the power consumption influencing factor;

[0010] The first current power consumption of the plurality of vehicle-mounted electrical appliances is determined according to the preset power consumption calculation strategies corresponding to the plurality of vehicle-mounted electrical appliances respectively.

[0011] Optionally, for a first on-board electrical appliance among the plurality of on-board electrical appliances, determining a preset power consumption calculation strategy for the first on-board electrical appliance based on the power consumption category of the first on-board electrical appliance includes:

[0012] If the power consumption category of the first vehicle-mounted electrical appliance is the dynamic electrical appliance, then the electrical function type of the first vehicle-mounted electrical appliance is obtained; the electrical function type includes: braking function, steering function, and cooling function;

[0013] Based on the electrical function type of the first vehicle electrical appliance, a preset power consumption calculation strategy of the first vehicle electrical appliance is determined.

[0014] Optionally, for a first on-board electrical appliance among the plurality of on-board electrical appliances, determining a preset power consumption calculation strategy for the first on-board electrical appliance based on the power consumption category of the first on-board electrical appliance includes:

[0015] If the power consumption category of the first vehicle-mounted electrical appliance is the steady-state electrical appliance, obtaining a current working mode of the first vehicle-mounted electrical appliance;

[0016] Based on the current operating mode of the first vehicle-mounted electrical appliance, a preset power consumption calculation strategy of the first vehicle-mounted electrical appliance is determined.

[0017] Optionally, before classifying the multiple vehicle-mounted electrical appliances into power consumption types to obtain the power consumption categories corresponding to the multiple vehicle-mounted electrical appliances, the method further includes:

[0018] Obtain a first total power consumption value of the vehicle; the first total power consumption value is the sum of the power consumption of all high-voltage electrical appliances and pre-specified low-voltage electrical appliances in the vehicle.

[0019] Optionally, after determining the first current power consumption of the plurality of vehicle-mounted electrical appliances according to the preset power consumption calculation strategies corresponding to the plurality of vehicle-mounted electrical appliances, the method further includes:

[0020] Calculating the sum of the first current power consumptions of the plurality of vehicle-mounted electrical appliances according to the first current power consumptions of the plurality of vehicle-mounted electrical appliances to obtain a second total power consumption value;

[0021] Determining a power consumption correction coefficient based on the first power consumption total value and the second power consumption total value;

[0022] The first current power consumption of the plurality of vehicle-mounted electrical appliances is corrected by the power consumption correction coefficient to obtain the second current power consumption of the plurality of vehicle-mounted electrical appliances; the second current power consumption represents the power consumption obtained after the first current power consumption is corrected.

[0023] Optionally, after determining the first current power consumption of the plurality of vehicle-mounted electrical appliances according to the preset power consumption calculation strategies corresponding to the plurality of vehicle-mounted electrical appliances, the method further includes:

[0024] Acquiring a plurality of electrical function types of the plurality of vehicle-mounted electrical appliances;

[0025] Based on the multiple electrical function types, the second current power consumptions of the multiple on-board electrical appliances are classified and summed to obtain third current power consumptions corresponding to each of the multiple electrical function types; the third current power consumption is the sum of the second current power consumptions of the on-board electrical appliances belonging to the same electrical function type;

[0026] According to the multiple electrical function types, the third current power consumption corresponding to each of the multiple electrical function types is displayed.

[0027] In a second aspect, the present application discloses a system for monitoring power consumption of electrical appliances, which is applied to a vehicle including a plurality of on-board electrical appliances, and the system comprises:

[0028] A category classification module, used to classify the power consumption types of the multiple on-board electrical appliances to obtain the power consumption categories corresponding to the multiple on-board electrical appliances; the power consumption categories include: dynamic electrical appliances and steady-state electrical appliances; the steady-state electrical appliances are electrical appliances whose working power variation amplitude is less than a preset threshold under preset operating conditions; the dynamic electrical appliances are electrical appliances whose working power variation amplitude is not less than the preset threshold under the preset operating conditions;

[0029] a strategy determination module, for determining, for a first on-board electrical appliance among the plurality of on-board electrical appliances, a preset power consumption calculation strategy for the first on-board electrical appliance based on the power consumption category of the first on-board electrical appliance; the preset power consumption calculation strategy is used to represent a power consumption influencing factor of the on-board electrical appliance and a power consumption calculation relationship formed based on the power consumption influencing factor;

[0030] The power consumption determination module is used to determine the first current power consumption of the plurality of vehicle-mounted electrical appliances according to the preset power consumption calculation strategies corresponding to each of the plurality of vehicle-mounted electrical appliances.

[0031] Optionally, the strategy determination module is specifically used to:

[0032] If the power consumption category of the first vehicle-mounted electrical appliance is the dynamic electrical appliance, then obtaining the electrical function type of the first vehicle-mounted electrical appliance; the electrical function type includes: at least one of a braking function, a steering function, and a cooling function;

[0033] Based on the electrical function type of the first vehicle electrical appliance, a preset power consumption calculation strategy of the first vehicle electrical appliance is determined.

[0034] In a third aspect, the present application discloses an electronic device, the device comprising: a processor, a memory, and a system bus;

[0035] The processor and the memory are connected via the system bus;

[0036] The memory is used to store one or more programs, and the one or more programs include instructions. When the instructions are executed by the processor, the processor executes the method for monitoring the power consumption of electrical appliances.

[0037] In a fourth aspect, the present application discloses a computer-readable storage medium having a computer program stored thereon, which implements the method for monitoring the power consumption of electrical appliances when executed by a processor.

[0038] Compared with the prior art, the present application has the following beneficial effects: the present application provides a method for monitoring the power consumption of electrical appliances and related equipment. In the real-time monitoring method for the power consumption of electrical appliances provided by the present application, the power consumption types of the multiple on-board electrical appliances are first divided to obtain the power consumption categories corresponding to the multiple on-board electrical appliances. Among them, the power consumption categories include: dynamic electrical appliances and steady-state electrical appliances; the steady-state electrical appliances are electrical appliances whose change amplitude of the working power under the preset operating conditions is less than the preset threshold; the dynamic electrical appliances are electrical appliances whose change amplitude of the working power under the preset operating conditions is not less than the preset threshold. Then, for the first on-board electrical appliance among the multiple on-board electrical appliances, based on the power consumption category of the first on-board electrical appliance, the preset power consumption calculation strategy of the first on-board electrical appliance is determined; the preset power consumption calculation strategy is used to represent the power consumption influencing factor of the on-board electrical appliance and the power consumption calculation relationship formed based on the power consumption influencing factor. Finally, according to the preset power consumption calculation strategies corresponding to the multiple on-board electrical appliances, the first current power consumption of the multiple on-board electrical appliances is determined. In the above method, a preset power consumption calculation strategy can be determined based on the specific power consumption category of the on-board electrical appliances in the vehicle. Through this preset power consumption calculation strategy, the power consumption influence factor of the on-board electrical appliances and the power consumption calculation relationship based on this power consumption influence factor can be known. Finally, based on this preset power consumption calculation strategy, the first current power consumption of the on-board electrical appliances can be determined. When it is necessary to calculate the current power consumption of the on-board electrical appliances, the current power consumption of the electrical appliances can be determined by the power consumption influence factor related to the on-board electrical appliances and the corresponding power consumption calculation relationship. It is no longer necessary to obtain the power consumption of the electrical appliances by allocating MOS devices, which improves the power consumption monitoring efficiency of the electrical appliances. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0040] Figure 1 A flowchart of a method for monitoring power consumption of an electrical appliance provided in an embodiment of the present application;

[0041] Figure 2 A schematic diagram of the relationship between the motor opening and the water temperature provided in an embodiment of the present application;

[0042] Figure 3 A schematic diagram of a power consumption display instrument screen provided in an embodiment of the present application;

[0043] Figure 4 A schematic diagram of the structure of a system for monitoring power consumption of electrical appliances provided in an embodiment of the present application;

[0044] Figure 5 A schematic diagram of the structure of an electronic device for monitoring the power consumption of electrical appliances provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] As described above, in the current power consumption monitoring technology for vehicle-mounted electrical appliances, MOS devices are usually used to detect the current flowing through the electrical appliances to determine their power consumption. Although this method can monitor the power consumption of each vehicle-mounted electrical appliance, a separate MOS device needs to be allocated for each vehicle-mounted electrical appliance. Each newly added vehicle-mounted electrical appliance needs to be separately allocated an additional MOS device for its power consumption monitoring, and the power consumption monitoring efficiency is low.

[0046] In order to solve the above problems, the present application provides a method for monitoring the power consumption of electrical appliances and related equipment. In the real-time monitoring method for the power consumption of electrical appliances provided in the present application, the power consumption types of the multiple on-board electrical appliances are first divided to obtain the power consumption categories corresponding to the multiple on-board electrical appliances. Among them, the power consumption categories include: dynamic electrical appliances and steady-state electrical appliances; the steady-state electrical appliances are electrical appliances whose change amplitude of the working power under the preset operating conditions is less than the preset threshold; the dynamic electrical appliances are electrical appliances whose change amplitude of the working power under the preset operating conditions is not less than the preset threshold. Then, for the first on-board electrical appliance among the multiple on-board electrical appliances, based on the power consumption category of the first on-board electrical appliance, the preset power consumption calculation strategy of the first on-board electrical appliance is determined; the preset power consumption calculation strategy is used to represent the power consumption influencing factor of the on-board electrical appliance and the power consumption calculation relationship formed based on the power consumption influencing factor. Finally, according to the preset power consumption calculation strategies corresponding to the multiple on-board electrical appliances, the first current power consumption of the multiple on-board electrical appliances is determined. In the above method, a preset power consumption calculation strategy can be determined based on the specific power consumption category of the on-board electrical appliances in the vehicle. Through this preset power consumption calculation strategy, the power consumption influence factor of the on-board electrical appliances and the power consumption calculation relationship based on this power consumption influence factor can be known. Finally, based on this preset power consumption calculation strategy, the first current power consumption of the on-board electrical appliances can be determined. When it is necessary to calculate the current power consumption of the on-board electrical appliances, the current power consumption of the electrical appliances can be determined by the power consumption influence factor related to the on-board electrical appliances and the corresponding power consumption calculation relationship. It is no longer necessary to obtain the power consumption of the electrical appliances by allocating MOS devices, which improves the power consumption monitoring efficiency of the electrical appliances.

[0047] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] See also Figure 1 , which is a flow chart of a method for monitoring power consumption of an electrical appliance provided in an embodiment of the present application, and specifically includes the following steps:

[0049] S101: Classify the power consumption types of the multiple vehicle-mounted electrical appliances to obtain the power consumption categories corresponding to the multiple vehicle-mounted electrical appliances; the power consumption categories include: dynamic electrical appliances and steady-state electrical appliances; the steady-state electrical appliances are electrical appliances whose operating power variation amplitude under preset operating conditions is less than a preset threshold; the dynamic electrical appliances are electrical appliances whose operating power variation amplitude under the preset operating conditions is not less than the preset threshold.

[0050] The method for monitoring the power consumption of electrical appliances provided in the present application is applied to a vehicle including a plurality of on-board electrical appliances. Before monitoring the power consumption of the on-board electrical appliances, it is necessary to classify the power consumption types of the on-board electrical appliances to obtain the power consumption category corresponding to each electrical appliance.

[0051] The power consumption categories of on-board electrical appliances can be specifically divided into two categories: dynamic electrical appliances and steady-state electrical appliances. Among them, steady-state electrical appliances are electrical appliances whose working power change amplitude is less than the preset threshold under preset operating conditions. The preset operating conditions are pre-set electrical appliance operating environments provided for on-board electrical appliances. The operating environment can have multiple factors at the same time, such as temperature, humidity, vehicle vibration, electromagnetic interference, and power supply stability. By setting a unified preset operating condition to classify the power consumption types of electrical appliances, we can effectively understand the changes in power consumption of electrical appliances in extreme or more intense environments, and define their power consumption categories based on the change amplitude of their working power under these operating conditions. The working power of steady-state electrical appliances under preset operating conditions is less than the preset threshold, and their working power is often relatively stable and not easily affected by the environment, such as body electrical appliances, door lock controllers, infotainment electrical appliances, etc.

[0052] Correspondingly, dynamic electrical appliances are electrical appliances whose working power variation amplitude under preset operating conditions is greater than a preset threshold. Dynamic electrical appliances are often more susceptible to external environmental factors such as temperature, vehicle speed, motor output power, or internal operating conditions. Therefore, the influencing factors corresponding to different dynamic electrical appliances are often different. Common dynamic electrical appliances include: power controllers, motor battery cooling controllers, and air conditioning controllers. Dynamic electrical appliances are often more susceptible to external environmental factors such as the operating environment. Therefore, in the subsequent calculation of the power consumption of dynamic electrical appliances, it is necessary to determine their power consumption based on the specific power consumption influencing factors of the dynamic electrical appliances.

[0053] S102: For a first on-board electrical appliance among the multiple on-board electrical appliances, determine a preset power consumption calculation strategy for the first on-board electrical appliance based on the power consumption category of the first on-board electrical appliance; the preset power consumption calculation strategy is used to represent the power consumption influencing factor of the on-board electrical appliance and a power consumption calculation relationship formed based on the power consumption influencing factor.

[0054] After the classification of the power consumption categories of the on-board electrical appliances is completed, the preset power consumption calculation strategies corresponding to the multiple on-board electrical appliances will be determined based on their specific power consumption categories. The preset power consumption calculation strategies are used to represent the power consumption influencing factors that can affect the power consumption of the on-board electrical appliances and the power consumption calculation relationship formed based on the power consumption factors.

[0055] As mentioned above, the power consumption of dynamic electrical appliances is often more easily affected by external environmental factors and other aspects, and the influencing factors corresponding to different dynamic electrical appliances are also different. Although the power consumption of static electrical appliances is not easily affected by external factors, its specific power consumption is also determined by the working mode of the electrical appliance itself. Therefore, in this application, the corresponding preset power consumption calculation strategies for electrical appliances based on different power consumption categories are also different. Next, for the first on-board electrical appliance among multiple on-board electrical appliances, taking the first on-board electrical appliance as an example, the process of determining its preset power consumption calculation strategy based on the power consumption category of the first on-board electrical appliance is explained in detail. When the first on-board electrical appliance is a dynamic electrical appliance, the process of determining its preset power consumption calculation strategy specifically includes the following two steps:

[0056] Step 1: If the power consumption category of the first vehicle-mounted electrical appliance is the dynamic electrical appliance, then the electrical function type of the first vehicle-mounted electrical appliance is obtained; the electrical function type includes: at least one of a braking function, a steering function, and a cooling function;

[0057] Step 2: Based on the electrical function type of the first vehicle-mounted electrical appliance, determine a preset power consumption calculation strategy for the first vehicle-mounted electrical appliance.

[0058] When it is determined that the power consumption category of the first vehicle electrical appliance is a dynamic electrical appliance, the electrical function type of the first vehicle electrical appliance is further obtained, and the corresponding preset power consumption calculation strategy is determined based on the electrical function type of the first vehicle electrical appliance.

[0059] For different dynamic electrical appliances, the corresponding power consumption influencing factors are different. Therefore, the present application is based on the electrical functions of dynamic electrical appliances as the basis for determining the corresponding preset power consumption calculation strategy. Specifically, the electrical function types include braking function, steering function, cooling function, etc., and the electrical function types are corresponded to specific power electrical appliances. The dynamic electrical appliances can specifically include: power controller, motor and battery cooling water pump, steering controller, air conditioning compressor and cooling fan, etc. Different dynamic electrical appliances have different power consumption influencing factors. For example, the power consumption influencing factor of the power controller is the dynamic power consumption of the torque output; the power consumption influencing factor of the motor and battery cooling water pump is the water temperature of the motor and battery, the motor opening and the rated power of the motor; the power consumption influencing factor of the steering controller is the current vehicle driving mode, the angle size, the angle rate and the angle motor output power; the power consumption influencing factor of the air conditioning compressor is the cooling and heating gear; the power consumption influencing factor of the cooling fan is the air conditioning request pressure, the vehicle speed and the rated power of the cooling fan.

[0060] Among the power consumption influencing factors corresponding to the multiple dynamic controllers mentioned above, the power consumption influencing factors of each dynamic controller can constitute the power consumption calculation relationship in its preset power consumption calculation strategy. The power consumption calculation relationship formed by different power consumption influencing factors is different. Taking the cooling fan as an example, its corresponding power consumption influencing factors are the air conditioning request pressure, vehicle speed and cooling fan rated power. The power consumption calculation relationship of the cooling fan is as follows:

[0061] P 风扇 =α*P 额定 ;

[0062] Where P 风扇 represents the power consumption of the cooling fan, α represents the opening degree of the cooling fan, P 额定 Indicates the rated power of the cooling fan. The relationship between the cooling fan opening, the air conditioning request pressure and the vehicle speed is shown in the following table:

[0063]

[0064] The left column and the top row of the table represent different vehicle speeds and different air conditioning request pressures, respectively. The percentage data in the table represent the opening values ​​of the cooling fan at different air conditioning request pressures and vehicle speeds. When calculating the power consumption of the cooling fan, the fan opening at a specific air conditioning request pressure and vehicle speed can be determined by looking up the table, and the power consumption of the cooling fan can be determined based on the fan opening and the rated power of the fan.

[0065] Here we take the motor cooling water pump as an example. The factors affecting the power consumption of the motor cooling water pump are the motor temperature, motor opening and motor rated power. The power consumption calculation formula of the motor cooling water pump is as follows:

[0066]

[0067] Where P 电机 represents the power consumption of the motor, Indicates the opening of the motor, P 额定 Indicates the rated power of the motor. Similarly, the motor opening can be determined by the pre-stored correspondence between the motor opening and the motor water temperature, thereby calculating the power consumption of the motor. The relationship between the motor opening and the water temperature is shown in the figure below. Figure 2 As shown, based on Figure 2 The disclosed schematic diagram of the relationship between the motor opening and the water temperature can determine the motor opening at different water temperatures, thereby calculating the current power consumption of the motor.

[0068] When the power consumption category of the first vehicle-mounted electrical appliance is a steady-state electrical appliance, the process of determining the preset power consumption calculation strategy includes the following two steps:

[0069] Step 1: If the power consumption category of the first vehicle-mounted electrical appliance is the steady-state electrical appliance, then obtain the current working mode of the first vehicle-mounted electrical appliance;

[0070] Step 2: Based on the current working mode of the first vehicle-mounted electrical appliance, determine a preset power consumption calculation strategy for the first vehicle-mounted electrical appliance.

[0071] The operating capacity of steady-state electrical appliances is often relatively stable and is not easily affected by changes in external environmental factors. Therefore, when the power consumption category of the first vehicle-mounted electrical appliance is a steady-state electrical appliance, the power consumption of the electrical appliance can be directly determined based on the power supply voltage and operating current of the electrical appliance. However, for different working modes of steady-state electrical appliances, there are certain differences in the corresponding power supply voltage and working current. Therefore, when the first vehicle-mounted electrical appliance is a steady-state electrical appliance, the working mode of the electrical appliance will be obtained, and then the corresponding preset power consumption calculation strategy can be determined based on the working mode of the electrical appliance. The preset power consumption calculation strategy for steady-state electrical appliances includes the working current and power supply voltage of the electrical appliance in different working modes. The power of the steady-state electrical appliance can be calculated by calculating the power of the steady-state electrical appliance to obtain the current power consumption of the steady-state electrical appliance.

[0072] S103: Determine first current power consumptions of the plurality of vehicle-mounted electrical appliances according to preset power consumption calculation strategies corresponding to the plurality of vehicle-mounted electrical appliances.

[0073] After obtaining the preset power consumption calculation strategy corresponding to each vehicle-mounted electrical appliance, the first current power consumption of multiple vehicle-mounted electrical appliances can be determined based on the power consumption influencing factors in the calculation strategy and the power consumption calculation relationship formed by the power consumption influencing factors, thereby completing the power consumption monitoring of each electrical appliance in the vehicle.

[0074] As an optional implementation, before step S101, the following step is further included:

[0075] Step 1: Obtain a first total power consumption value of the vehicle; the first total power consumption value is the sum of the power consumption of all high-voltage electrical appliances and pre-specified low-voltage electrical appliances in the vehicle.

[0076] Before classifying the vehicle-mounted electrical appliances into power consumption types, a first total power consumption value of the vehicle may be obtained, wherein the first total power consumption value represents the sum of the power consumption of all high-voltage electrical appliances and pre-specified low-voltage electrical appliances in the vehicle.

[0077] Among the on-board electrical appliances, on-board high-voltage electrical appliances refer to electrical appliances with a working voltage higher than 200V-400V used in the vehicle, such as drive motors, generators, inverters, etc. High-voltage electrical appliances often occupy a large proportion of the power consumption in the vehicle, and the power consumption changes of high-voltage electrical appliances during the driving process of the vehicle will also produce different power consumptions with the changes in the vehicle driving mode. Low-voltage electrical appliances refer to electrical appliances with a working voltage lower than 60V, such as lights, instrument panels, seat heating, etc. Since the voltage of some low-voltage electrical appliances in the vehicle is too small, it is impossible to accurately obtain the power consumption of electrical appliances with too low voltage. Therefore, the first total power consumption value adopts the sum of the power consumption of all high-voltage electrical appliances and some pre-specified low-voltage electrical appliances. The first total power consumption value can be used to improve the accuracy of the power consumption of electrical appliances calculated in the future. In the process of obtaining the first total power consumption value, it can be obtained through a current sensor. Due to the large proportion of power consumption of high-voltage electrical appliances, the method of using a current sensor to detect current can accurately obtain the first total power consumption value jointly constituted by the high-voltage electrical appliances and some low-voltage electrical appliances in the vehicle.

[0078] As another optional implementation, after step S103, the following three steps are further included:

[0079] Step 1: Calculate the sum of the first current power consumptions of the plurality of vehicle-mounted electrical appliances according to the first current power consumptions of the plurality of vehicle-mounted electrical appliances to obtain a second total power consumption value;

[0080] Step 2: determining a power consumption correction coefficient based on the first power consumption total value and the second power consumption total value;

[0081] Step three: correct the first current power consumption of the plurality of vehicle-mounted electrical appliances by using the power consumption correction coefficient to obtain the second current power consumption of the plurality of vehicle-mounted electrical appliances; the second current power consumption represents the power consumption obtained after correcting the first current power consumption.

[0082] From the above description, it can be seen that the first total power consumption value of the vehicle obtained before the power consumption type of the vehicle electrical appliances can be used to improve the accuracy of the power consumption of the electrical appliances calculated later. The data optimization of the current power consumption of the electrical appliances needs to be performed based on the power consumption correction coefficient.

[0083] In the process of determining the power consumption correction coefficient, the sum of the power consumption values ​​of all on-board electrical appliances in the vehicle, that is, the second total power consumption value, is calculated based on the current power consumption of multiple on-board electrical appliances. Then, the power consumption correction coefficient is determined based on the first total power consumption value and the second total power consumption value obtained previously. The specific calculation formula for the power consumption correction coefficient is as follows:

[0084] k=(Pz-Pd-Pw) / (Pd+Pw)

[0085] In the formula, k represents the power consumption correction coefficient; Pz represents the first total power consumption value obtained before calculating the current power consumption; Pd represents the total power consumption of dynamic electrical appliances; Pw represents the total power consumption of steady-state electrical appliances; Pd+Pw is the total power consumption of all on-board electrical appliances.

[0086] Through the above formula, the power consumption correction coefficient can be calculated. Based on the power consumption correction coefficient, the numerical correction of the first current power consumption of the vehicle electrical appliances can be achieved, making its value closer to the actual power consumption value, thereby ensuring the accuracy of monitoring the power consumption of the vehicle electrical appliances and obtaining the second current power consumption.

[0087] For details, please refer to Figure 3 The following scheme can be further understood by referring to the schematic diagram of a power consumption display instrument screen disclosed.

[0088] As another optional implementation, after step S103, the following three steps are further included:

[0089] Step 1: obtaining multiple electrical function types of the multiple vehicle-mounted electrical appliances;

[0090] Step 2: Based on the multiple electrical function types, classify and sum the second current power consumptions of the multiple on-board electrical appliances to obtain the third current power consumptions corresponding to the multiple electrical function types; the third current power consumption is the sum of the second current power consumptions of the on-board electrical appliances belonging to the same electrical function type;

[0091] Step three: displaying the third current power consumption corresponding to each of the multiple electrical function types according to the multiple electrical function types.

[0092] After completing the power consumption calculation for the on-board electrical appliances and obtaining the first current power consumption of each electrical appliance, its specific power consumption needs to be displayed. Since the interior of the vehicle often has a large number of complete electrical functions, even the same electrical type may have multiple different electrical appliances. Therefore, when displaying the power consumption based on the various electrical appliances in the vehicle, by displaying the electrical functions and the power consumption of the corresponding multiple electrical appliances, the specific power consumption of different electrical functions in the vehicle can be more intuitively displayed.

[0093] Therefore, by obtaining the electrical function types corresponding to multiple vehicle-mounted electrical appliances, and classifying and summing them based on their respective electrical function types, the overall power consumption for different electrical function types can be obtained, that is, the third current power consumption. Finally, the third current power consumption is displayed on the instrument screen, which can accurately show the user the specific power consumption of different electrical function types of the vehicle, as well as the specific power consumption of different motors under a single electrical function type, so that the driver can adjust the working mode of each electrical appliance according to his own needs, thereby ensuring the driver's driving experience.

[0094] This embodiment provides a method for monitoring the power consumption of electrical appliances. In the real-time monitoring method for the power consumption of electrical appliances provided in this application, the power consumption types of the multiple on-board electrical appliances are first divided to obtain the power consumption categories corresponding to the multiple on-board electrical appliances. Among them, the power consumption categories include: dynamic electrical appliances and steady-state electrical appliances; the steady-state electrical appliances are electrical appliances whose change amplitude of the working power under preset operating conditions is less than the preset threshold; the dynamic electrical appliances are electrical appliances whose change amplitude of the working power under the preset operating conditions is not less than the preset threshold. Then, for the first on-board electrical appliance among the multiple on-board electrical appliances, based on the power consumption category of the first on-board electrical appliance, the preset power consumption calculation strategy of the first on-board electrical appliance is determined; the preset power consumption calculation strategy is used to represent the power consumption influencing factor of the on-board electrical appliance and the power consumption calculation relationship formed based on the power consumption influencing factor. Finally, according to the preset power consumption calculation strategies corresponding to the multiple on-board electrical appliances, the first current power consumption of the multiple on-board electrical appliances is determined. In the above method, a preset power consumption calculation strategy can be determined based on the specific power consumption category of the on-board electrical appliances in the vehicle. Through this preset power consumption calculation strategy, the power consumption influence factor of the on-board electrical appliances and the power consumption calculation relationship based on this power consumption influence factor can be known. Finally, based on this preset power consumption calculation strategy, the first current power consumption of the on-board electrical appliances can be determined. When it is necessary to calculate the current power consumption of the on-board electrical appliances, the current power consumption of the electrical appliances can be determined by the power consumption influence factor related to the on-board electrical appliances and the corresponding power consumption calculation relationship. It is no longer necessary to obtain the power consumption of the electrical appliances by allocating MOS devices, which improves the power consumption monitoring efficiency of the electrical appliances.

[0095] A system for monitoring the power consumption of an electrical appliance provided in an embodiment of the present application is introduced below. The system for monitoring the power consumption of an electrical appliance described below and the method for monitoring the power consumption of an electrical appliance described above can refer to each other.

[0096] Reference Figure 4 , which is a schematic diagram of the structure of the monitoring system for power consumption of electrical appliances provided in an embodiment of the present application, and specifically includes the following modules:

[0097] The category classification module 100 is used to classify the power consumption types of the multiple vehicle-mounted electrical appliances to obtain the power consumption categories corresponding to the multiple vehicle-mounted electrical appliances; the power consumption categories include: dynamic electrical appliances and steady-state electrical appliances; the steady-state electrical appliances are electrical appliances whose working power variation amplitude is less than a preset threshold under preset operating conditions; the dynamic electrical appliances are electrical appliances whose working power variation amplitude is not less than the preset threshold under the preset operating conditions;

[0098] A strategy determination module 200 is used to determine, for a first on-board electrical appliance among the plurality of on-board electrical appliances, a preset power consumption calculation strategy for the first on-board electrical appliance based on the power consumption category of the first on-board electrical appliance; the preset power consumption calculation strategy is used to represent the power consumption influencing factor of the on-board electrical appliance and a power consumption calculation relationship formed based on the power consumption influencing factor;

[0099] The power consumption determination module 300 is used to determine the first current power consumption of the plurality of vehicle-mounted electrical appliances according to the preset power consumption calculation strategies corresponding to the plurality of vehicle-mounted electrical appliances respectively.

[0100] Optionally, the strategy determination module 200 is specifically configured to:

[0101] If the power consumption category of the first vehicle-mounted electrical appliance is the dynamic electrical appliance, then obtaining the electrical function type of the first vehicle-mounted electrical appliance; the electrical function type includes: at least one of a braking function, a steering function, and a cooling function;

[0102] Based on the electrical function type of the first vehicle electrical appliance, a preset power consumption calculation strategy of the first vehicle electrical appliance is determined.

[0103] Optionally, the strategy determination module 200 is specifically configured to:

[0104] If the power consumption category of the first vehicle-mounted electrical appliance is the steady-state electrical appliance, obtaining a current working mode of the first vehicle-mounted electrical appliance;

[0105] Based on the current operating mode of the first vehicle-mounted electrical appliance, a preset power consumption calculation strategy of the first vehicle-mounted electrical appliance is determined.

[0106] Optionally, the system further includes: an acquisition module; the acquisition module is specifically used to:

[0107] Obtain a first total power consumption value of the vehicle; the first total power consumption value is the sum of the power consumption of all high-voltage electrical appliances and pre-specified low-voltage electrical appliances in the vehicle.

[0108] Optionally, the system further includes: a correction module; the correction module is specifically used to:

[0109] Calculating the sum of the first current power consumptions of the plurality of vehicle-mounted electrical appliances according to the first current power consumptions of the plurality of vehicle-mounted electrical appliances to obtain a second total power consumption value;

[0110] Determining a power consumption correction coefficient based on the first power consumption total value and the second power consumption total value;

[0111] The first current power consumption of the plurality of vehicle-mounted electrical appliances is corrected by the power consumption correction coefficient to obtain the second current power consumption of the plurality of vehicle-mounted electrical appliances; the second current power consumption represents the power consumption obtained after the first current power consumption is corrected.

[0112] Optionally, the system further includes: a display module; the display module is specifically used to:

[0113] Acquiring a plurality of electrical function types of the plurality of vehicle-mounted electrical appliances;

[0114] Based on the multiple electrical function types, the second current power consumptions of the multiple on-board electrical appliances are classified and summed to obtain third current power consumptions corresponding to each of the multiple electrical function types; the third current power consumption is the sum of the second current power consumptions of the on-board electrical appliances belonging to the same electrical function type;

[0115] According to the multiple electrical function types, the third current power consumption corresponding to each of the multiple electrical function types is displayed.

[0116] See also Figure 5 , which is a schematic diagram of the structure of an inertial measurement unit fault detection electronic device provided in an embodiment of the present application, including:

[0117] A memory 11, used for storing computer programs;

[0118] The processor 12 is used to implement the steps of the method for monitoring the power consumption of electrical appliances described in any of the above method embodiments when executing the computer program.

[0119] In this embodiment, the device may be a vehicle-mounted computer, a PC (Personal Computer), or a terminal device such as a smart phone, a tablet computer, a PDA, or a portable computer.

[0120] The device may include a memory 11 , a processor 12 , and a bus 13 .

[0121] Among them, the memory 11 includes at least one type of readable storage medium, and the readable storage medium includes flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), magnetic memory, disk, optical disk, etc. In some embodiments, the memory 11 can be an internal storage unit of the device, such as a hard disk of the device. In other embodiments, the memory 11 can also be an external storage device of the device, such as a plug-in hard disk equipped on the device, a smart memory card (SmartMedia Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. Further, the memory 11 can also include both an internal storage unit of the device and an external storage device. The memory 11 can not only be used to store application software and various types of data installed in the device, such as program codes for executing fault prediction methods, etc., but can also be used to temporarily store data that has been output or is to be output. The processor 12 can be a central processing unit (CPU) in some embodiments.

[0122] In some embodiments, the processor 12 may be a central processing unit (CPU), a controller, a microcontroller, a microprocessor or other data processing chip, and is used to run program codes or process data stored in the memory 11, such as program codes for executing a fault prediction method.

[0123] The bus 13 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 5 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0124] Furthermore, the device may also include a network interface 14, which may optionally include a wired interface and / or a wireless interface (such as a WI-FI interface, a Bluetooth interface, etc.), which is generally used to establish a communication connection between the device and other electronic devices.

[0125] Optionally, the device may further include a user interface 15, which may include a display (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 15 may also include a standard wired interface and a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, and an OLED (Organic Light-Emitting Diode) touch device, etc. The display may also be appropriately referred to as a display screen or a display unit, which is used to display information processed in the device and to display a visual user interface.

[0126] Figure 5 Only the device with components 11-15 is shown, and it can be understood by those skilled in the art that Figure 5 The structure shown does not constitute a limitation of the device, and may include fewer or more components than shown, or combine certain components, or arrange the components differently.

[0127] It should be noted that each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for methods, systems, electronic devices and media, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments. The methods, systems, electronic devices and media described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components indicated as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0128] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for monitoring power consumption of electrical appliances, applied to a vehicle including a plurality of on-board electrical appliances, characterized in that: The method comprises: The power consumption types of the multiple vehicle-mounted electrical appliances are divided to obtain power consumption categories corresponding to the multiple vehicle-mounted electrical appliances; the power consumption categories include: dynamic electrical appliances and steady-state electrical appliances; the steady-state electrical appliances are electrical appliances whose working power variation amplitude under preset operating conditions is less than a preset threshold; the dynamic electrical appliances are electrical appliances whose working power variation amplitude under the preset operating conditions is not less than the preset threshold; For a first on-board electrical appliance among the plurality of on-board electrical appliances, a preset power consumption calculation strategy of the first on-board electrical appliance is determined based on the power consumption category of the first on-board electrical appliance; the preset power consumption calculation strategy is used to represent the power consumption influencing factor of the on-board electrical appliance and a power consumption calculation relationship formed based on the power consumption influencing factor; The first current power consumption of the plurality of vehicle-mounted electrical appliances is determined according to the preset power consumption calculation strategies corresponding to the plurality of vehicle-mounted electrical appliances respectively.

2. The method according to claim 1, characterized in that The step of determining, for a first on-vehicle electrical appliance among the plurality of on-vehicle electrical appliances, a preset power consumption calculation strategy for the first on-vehicle electrical appliance based on the power consumption category of the first on-vehicle electrical appliance includes: If the power consumption category of the first vehicle-mounted electrical appliance is the dynamic electrical appliance, then obtaining the electrical function type of the first vehicle-mounted electrical appliance; the electrical function type includes: at least one of a braking function, a steering function, and a cooling function; Based on the electrical function type of the first vehicle electrical appliance, a preset power consumption calculation strategy of the first vehicle electrical appliance is determined.

3. The method according to claim 1, characterized in that The step of determining, for a first on-vehicle electrical appliance among the plurality of on-vehicle electrical appliances, a preset power consumption calculation strategy for the first on-vehicle electrical appliance based on the power consumption category of the first on-vehicle electrical appliance includes: If the power consumption category of the first vehicle-mounted electrical appliance is the steady-state electrical appliance, obtaining a current working mode of the first vehicle-mounted electrical appliance; Based on the current operating mode of the first vehicle-mounted electrical appliance, a preset power consumption calculation strategy of the first vehicle-mounted electrical appliance is determined.

4. The method according to claim 1, characterized in that: Before classifying the power consumption types of the plurality of vehicle-mounted electrical appliances to obtain the power consumption categories corresponding to the plurality of vehicle-mounted electrical appliances, the method further includes: Obtain a first total power consumption value of the vehicle; the first total power consumption value is the sum of the power consumption of all high-voltage electrical appliances and pre-specified low-voltage electrical appliances in the vehicle.

5. The method according to claim 4, characterized in that After determining the first current power consumption of the plurality of vehicle-mounted electrical appliances according to the preset power consumption calculation strategies corresponding to the plurality of vehicle-mounted electrical appliances, the method further includes: Calculating the sum of the first current power consumptions of the plurality of vehicle-mounted electrical appliances according to the first current power consumptions of the plurality of vehicle-mounted electrical appliances to obtain a second total power consumption value; Determining a power consumption correction coefficient based on the first power consumption total value and the second power consumption total value; The first current power consumption of the plurality of vehicle-mounted electrical appliances is corrected by the power consumption correction coefficient to obtain the second current power consumption of the plurality of vehicle-mounted electrical appliances; the second current power consumption represents the power consumption obtained after the first current power consumption is corrected.

6. The method according to claim 5, characterized in that After the first current power consumption of the plurality of vehicle-mounted electrical appliances is corrected by the power consumption correction coefficient to obtain the second current power consumption of the plurality of vehicle-mounted electrical appliances, the method further includes: Acquiring a plurality of electrical function types of the plurality of vehicle-mounted electrical appliances; Based on the multiple electrical function types, the second current power consumptions of the multiple on-board electrical appliances are classified and summed to obtain third current power consumptions corresponding to each of the multiple electrical function types; the third current power consumption is the sum of the second current power consumptions of the on-board electrical appliances belonging to the same electrical function type; According to the multiple electrical function types, the third current power consumption corresponding to each of the multiple electrical function types is displayed.

7. A system for monitoring power consumption of electrical appliances, applied to a vehicle including a plurality of on-board electrical appliances, characterized in that: The system comprises: A category classification module, used to classify the power consumption types of the multiple on-board electrical appliances to obtain the power consumption categories corresponding to the multiple on-board electrical appliances; the power consumption categories include: dynamic electrical appliances and steady-state electrical appliances; the steady-state electrical appliances are electrical appliances whose working power variation amplitude is less than a preset threshold under preset operating conditions; the dynamic electrical appliances are electrical appliances whose working power variation amplitude is not less than the preset threshold under the preset operating conditions; a strategy determination module, for determining, for a first on-board electrical appliance among the plurality of on-board electrical appliances, a preset power consumption calculation strategy for the first on-board electrical appliance based on the power consumption category of the first on-board electrical appliance; the preset power consumption calculation strategy is used to represent a power consumption influencing factor of the on-board electrical appliance and a power consumption calculation relationship formed based on the power consumption influencing factor; The power consumption determination module is used to determine the first current power consumption of the plurality of vehicle-mounted electrical appliances according to the preset power consumption calculation strategies corresponding to each of the plurality of vehicle-mounted electrical appliances.

8. The system according to claim 7, characterized in that The strategy determination module is specifically used to: If the power consumption category of the first vehicle-mounted electrical appliance is the dynamic electrical appliance, then obtaining the electrical function type of the first vehicle-mounted electrical appliance; the electrical function type includes: at least one of a braking function, a steering function, and a cooling function; Based on the electrical function type of the first vehicle electrical appliance, a preset power consumption calculation strategy of the first vehicle electrical appliance is determined.

9. An electronic device, characterized in that: The device includes: a processor, a memory, and a system bus; The processor and the memory are connected via the system bus; The memory is used to store one or more programs, and the one or more programs include instructions. When the instructions are executed by the processor, the processor executes the method for monitoring the power consumption of an electrical appliance according to any one of claims 1 to 6.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method for monitoring the power consumption of an electrical appliance described in any one of claims 1 to 6 is implemented.

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