Idling charging power limiting method and device of hybrid electric vehicle and vehicle

Abstract

The invention relates to an idling charging power limiting method and device of a hybrid electric vehicle and a vehicle. The method comprises the steps that the actual scene where the hybrid electric vehicle is located is recognized, and whether the hybrid electric vehicle meets the preset idling charging starting condition or not is judged according to the actual scene; if the hybrid electric vehicle meets the preset idling charging starting condition, the voltage load power consumption interval and noise, vibration and sound vibration roughness NVH rotation speed limiting torque curve of the hybrid electric vehicle in the driving process are counted; and on the basis of the voltage load power consumption interval and the NVH limited rotating speed torque curve, the idle charging power of the hybrid electric vehicle is limited by using at least one whole vehicle parameter and the road information, so that a limiting result of the idle charging power is generated. Therefore, the problems that the vehicle part efficiency and the actual use scene are not comprehensively considered in the related technology, the optimal idling charging power of the vehicle is difficult to output, and the use experience of a user is reduced are solved.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a method and device for limiting idle charging power of a hybrid electric vehicle and a vehicle. Background Art

[0002] In urban traffic environments, vehicles are often in an idling state, such as when waiting for traffic lights or stopping for a rest. For hybrid vehicles, using these short pauses for charging (i.e., idling charging) can not only extend the battery life, but also optimize the energy management strategy of the vehicle, further improve fuel economy and reduce emissions. However, improper idling charging power settings may cause unnecessary engine wear, increase noise and vibration (NVH issues), and even affect user comfort.

[0003] In the related technology, most existing solutions only focus on the direction of power balancing technology, that is, ensuring that the battery power is maintained within a reasonable range, and traditional idle charging control methods often adopt fixed or semi-fixed power settings.

[0004] However, the relevant technology does not comprehensively consider the efficiency of vehicle components and actual usage scenarios, making it difficult to output the vehicle's optimal idle charging power, which reduces the user experience and urgently needs to be improved. Summary of the invention

[0005] The present application provides a method, device and vehicle for limiting the idle charging power of a hybrid vehicle to solve the problems that the related technology does not comprehensively consider the efficiency of vehicle components and actual usage scenarios, is difficult to output the optimal idle charging power of the vehicle, and reduces the user experience.

[0006] The first aspect of the present application provides a method for limiting the idle charging power of a hybrid vehicle, comprising the following steps: identifying an actual scenario in which the hybrid vehicle is located, and judging whether the hybrid vehicle meets a preset idle charging start condition based on the actual scenario; if the hybrid vehicle meets the preset idle charging start condition, then counting the voltage-load power consumption range and the noise, vibration and harshness (NVH) speed limit torque curve of the hybrid vehicle during driving; based on the voltage-load power consumption range and the NVH speed limit torque curve, limiting the idle charging power of the hybrid vehicle using at least one vehicle parameter and road information to generate a limitation result for the idle charging power.

[0007] Optionally, in one embodiment of the present application, after determining whether the hybrid vehicle meets the preset idle charging start conditions according to the actual scenario, it also includes: if the hybrid vehicle meets the preset idle charging start conditions, obtaining the generator efficiency and engine specific fuel consumption data of the hybrid vehicle; based on the generator efficiency and the engine specific fuel consumption data of the hybrid vehicle, determining the engine speed torque curve that meets the preset optimal power generation conditions.

[0008] Optionally, in one embodiment of the present application, the method of limiting the idle charging power of the hybrid vehicle using at least one vehicle parameter and road information to generate the idle charging power limitation result includes: obtaining at least one vehicle parameter of the hybrid vehicle including the current battery status, battery temperature, ambient temperature and humidity; obtaining at least one road information including road slope, road friction coefficient and traffic conditions; and limiting the idle charging power of the hybrid vehicle using the at least one vehicle parameter and the at least one road information to generate the idle charging power limitation result.

[0009] Optionally, in one embodiment of the present application, the actual scenario of the hybrid vehicle includes at least one of an urban road driving scenario, a highway driving scenario, a traffic light stop and wait scenario, a hill climbing driving scenario, and a parking rest scenario.

[0010] Optionally, in one embodiment of the present application, the method of limiting the idle charging power of the hybrid vehicle by using at least one vehicle parameter and road conditions to generate the idle charging power limitation result also includes: judging whether the current battery state of the hybrid vehicle meets the first preset state of charge according to the actual scenario of the hybrid vehicle; if the current battery state meets the first preset state of charge, performing the idle stop action of the hybrid vehicle according to the at least one vehicle parameter and the road conditions, otherwise judging whether the current battery state meets the second preset state of charge; if the current battery state meets the second preset state of charge, performing the first charging power selection action of the hybrid vehicle according to the air conditioning switch condition, otherwise judging whether the current battery state meets the third preset state of charge; if the current battery state meets the third preset state of charge, performing the second charging power selection action of the hybrid vehicle, until the current battery state meets the second preset state of charge, performing the first charging power selection action of the hybrid vehicle according to the air conditioning switch condition, and limiting the idle charging power of the hybrid vehicle according to the first charging power selection action to generate the idle charging power limitation result.

[0011] The second aspect of the present application provides an idle charging power limiting device for a hybrid vehicle, comprising: an identification module, used to identify the actual scenario in which the hybrid vehicle is located, and determine whether the hybrid vehicle meets the preset idle charging start condition based on the actual scenario; a statistical module, used to count the voltage-load power consumption range and the noise, vibration and harshness (NVH) speed limit torque curve of the hybrid vehicle during driving when the hybrid vehicle meets the preset idle charging start condition; a limiting module, used to limit the idle charging power of the hybrid vehicle based on the voltage-load power consumption range and the NVH speed limit torque curve, using at least one vehicle parameter and road information, so as to generate the idle charging power limitation result.

[0012] Optionally, in one embodiment of the present application, it also includes: an acquisition module, which is used to determine whether the hybrid vehicle meets the preset idle charging start conditions according to the actual scenario, and when the hybrid vehicle meets the preset idle charging start conditions, obtain the generator efficiency and engine specific fuel consumption data of the hybrid vehicle; a determination module, which is used to determine the engine speed torque curve that meets the preset optimal power generation conditions based on the generator efficiency of the hybrid vehicle and the engine specific fuel consumption data.

[0013] Optionally, in one embodiment of the present application, the limitation module includes: a parameter acquisition unit, used to obtain at least one vehicle parameter of the hybrid vehicle, including the current battery status, battery temperature, ambient temperature and humidity; an information acquisition unit, used to obtain at least one road information including road slope, road friction coefficient and traffic conditions; and a result limitation unit, used to limit the idle charging power of the hybrid vehicle using the at least one vehicle parameter and the at least one road information to generate the idle charging power limitation result.

[0014] Optionally, in one embodiment of the present application, the actual scenario of the hybrid vehicle includes at least one of an urban road driving scenario, a highway driving scenario, a traffic light stop and wait scenario, a hill climbing driving scenario, and a parking rest scenario.

[0015] Optionally, in one embodiment of the present application, the limiting module further includes: a judgment unit, configured to judge whether the current battery state of the hybrid vehicle satisfies a first preset state of charge according to the actual scenario of the hybrid vehicle; a first execution unit, configured to execute an idle stop action of the hybrid vehicle according to at least one vehicle parameter and the road condition when the current battery state satisfies the first preset state of charge, otherwise, determine whether the current battery state satisfies a second preset state of charge; a second execution unit, configured to execute a first charging power selection action of the hybrid vehicle according to an air conditioning switch condition when the current battery state satisfies the second preset state of charge, otherwise, determine whether the current battery state satisfies a third preset state of charge; a limiting unit, configured to execute a second charging power selection action of the hybrid vehicle when the current battery state satisfies the third preset state of charge, until the current battery state satisfies the second preset state of charge, execute the first charging power selection action of the hybrid vehicle according to the air conditioning switch condition, and limit the idle charging power of the hybrid vehicle according to the first charging power selection action to generate the idle charging power limitation result.

[0016] The third aspect of the present application provides a vehicle, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the idle charging power limiting method for a hybrid vehicle as described in the above embodiment.

[0017] A fourth aspect of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, which, when executed by a processor, implements the above-mentioned method for limiting the idle charging power of a hybrid vehicle.

[0018] The embodiment of the present application can identify the user's vehicle usage scenario to determine the path of the vehicle's idle charging power, count the high and low voltage load power consumption range and NVH speed limit torque curve during driving, and calculate the vehicle's idle charging power according to the vehicle parameters and road conditions to limit the idle charging power, thus satisfying the user's power economy and comfort. This solves the problem that the relevant technology does not comprehensively consider the efficiency of vehicle components and actual usage scenarios, is difficult to output the vehicle's optimal idle charging power, and reduces the user's experience.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0021] Figure 1 A flowchart of a method for limiting idle charging power of a hybrid vehicle provided according to an embodiment of the present application;

[0022] Figure 2 A flowchart of an idle charging power limiting method for a hybrid vehicle according to an embodiment of the present application;

[0023] Figure 3 It is a structural schematic diagram of an idle charging power limiting device for a hybrid vehicle provided according to an embodiment of the present application;

[0024] Figure 4 It is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0026] The following describes the idle charging power limiting method, device and vehicle of the hybrid vehicle of the embodiment of the present application with reference to the accompanying drawings. In view of the problem that the related technologies mentioned in the above background technology do not comprehensively consider the efficiency of vehicle components and actual usage scenarios, it is difficult to output the optimal idle charging power of the vehicle, and the user experience is reduced, the present application provides an idle charging power limiting method for a hybrid vehicle, in which the user's vehicle usage scenario can be identified to determine the path of the vehicle's idle charging power, the high and low voltage load power consumption intervals and NVH speed limit torque curves during driving are counted, and the idle charging power of the whole vehicle is calculated according to the whole vehicle parameters and road conditions to limit the idle charging power, so as to meet the user's power economy and comfort. The idle charging power setting method. As a result, the problem that the related technologies do not comprehensively consider the efficiency of vehicle components and actual usage scenarios, it is difficult to output the optimal idle charging power of the vehicle, and the user experience is reduced is solved.

[0027] Specifically, Figure 1 A schematic flow chart of a method for limiting idle charging power of a hybrid vehicle provided in an embodiment of the present application.

[0028] like Figure 1 As shown, the idle charging power limiting method of the hybrid electric vehicle includes the following steps:

[0029] In step S101, the actual scene in which the hybrid vehicle is located is identified, and it is determined whether the hybrid vehicle meets the preset idle charging start condition according to the actual scene.

[0030] It is understandable that the preset idle charging start condition in the embodiment of the present application can be a process condition for determining whether to start the generator for charging when the vehicle is stationary; hybrid vehicles not only have the advantages of high intelligence of electric vehicles, but also can well solve the user's mileage anxiety problem. Therefore, before there is a huge breakthrough in the range of electric vehicles, hybrid models will have a lot of room for growth. The idle condition is a scene where users perceive it more prominently. The present application can propose a calculation solution that combines user perception and energy consumption optimization, providing a possibility for solving the problem of poor user perception in the idle scene.

[0031] During the actual implementation process, the embodiments of the present application can obtain information about the hybrid vehicle and its surrounding environment through multi-sensor fusion technology to identify the actual scenario in which the hybrid vehicle is located, and determine whether the hybrid vehicle meets certain idle charging start conditions based on the actual scenario, thereby providing support for the subsequent execution of corresponding actions.

[0032] The embodiments of the present application can intelligently manage the idle charging process of hybrid vehicles under different driving conditions, achieving a more efficient, more comfortable and more economical charging experience, which not only helps to extend battery life and improve fuel economy, but also significantly improves the user's overall driving experience.

[0033] It should be noted that the preset idle charging start condition can be set by those skilled in the art according to actual conditions and is not specifically limited here.

[0034] Optionally, in one embodiment of the present application, the actual scenario of the hybrid vehicle includes at least one of an urban road driving scenario, a highway driving scenario, a traffic light stop and wait scenario, a hill climbing driving scenario, and a parking rest scenario.

[0035] It can be understood that the traffic light stop and wait scene in the embodiment of the present application is a short stop scene during driving, and the parking and rest scene is a long stop scene during driving.

[0036] In the actual implementation process, the actual scenarios of the hybrid vehicle in the embodiment of the present application include urban road driving scenarios, highway driving scenarios, traffic light stop waiting scenarios, hill climbing driving scenarios and parking and rest scenarios, etc., and comprehensive consideration is given to scenarios such as short stops during driving and long stops during parking, thereby proposing an idle charging power setting method that meets both the user's power economy and comfort.

[0037] The embodiments of the present application can comprehensively consider the efficiency of vehicle components and actual usage scenarios, and provide support for the subsequent optimization of the output of the vehicle's optimal idle charging power.

[0038] Optionally, in one embodiment of the present application, after determining whether the hybrid vehicle meets the preset idle charging start conditions according to the actual scenario, it also includes: if the hybrid vehicle meets the preset idle charging start conditions, obtaining the generator efficiency and engine specific fuel consumption data of the hybrid vehicle; based on the generator efficiency and engine specific fuel consumption data of the hybrid vehicle, determining the engine speed torque curve that meets the preset optimal power generation conditions.

[0039] It can be understood that the preset optimal power generation condition in the embodiment of the present application can be an optimal engine speed torque curve.

[0040] During the actual implementation process, the embodiment of the present application can obtain the generator efficiency and engine specific fuel consumption data of the hybrid vehicle when the hybrid vehicle meets certain idle charging start conditions. Based on the generator efficiency and engine specific fuel consumption data of the hybrid vehicle, the system determines the optimal engine speed torque curve through algorithm analysis, and adjusts the idle charging strategy accordingly.

[0041] The embodiment of the present application not only improves the energy utilization efficiency, but also optimizes the working state of the engine, ensuring optimal performance during idle charging.

[0042] It should be noted that the preset optimal power generation conditions can be set by those skilled in the art according to actual conditions and are not specifically limited here.

[0043] In step S102, if the hybrid vehicle meets the preset idle charging start condition, the voltage load power consumption range and the noise, vibration and harshness NVH speed limit torque curve of the hybrid vehicle during driving are counted.

[0044] It can be understood that the voltage load power consumption range in the embodiment of the present application can be the power consumption range generated by the motor and other electrical systems during the operation of the vehicle; the NVH speed limit torque curve in the embodiment of the present application can be the maximum speed and torque output limit curve allowed by the engine or motor under different driving conditions.

[0045] Specifically, the embodiment of the present application can count the voltage load power consumption range and the noise, vibration and acoustic roughness NVH speed limit torque curve of the hybrid vehicle during driving when the hybrid vehicle meets certain idle charging start conditions, providing a basis for understanding the load conditions of the battery or generator under different working conditions and formulating a reasonable idle charging strategy, reflecting the sound quality, vibration level and overall comfort inside and outside the vehicle.

[0046] The embodiments of the present application can provide a basis for formulating a reasonable idle charging strategy. Through in-depth analysis of the voltage-load power consumption range and the NVH speed limit torque curve, hybrid vehicles can significantly improve the user's driving experience while maintaining good performance and achieve a higher energy efficiency ratio.

[0047] It should be noted that the preset optimal power generation conditions can be set by those skilled in the art according to actual conditions and are not specifically limited here.

[0048] In step S103, based on the voltage-load power consumption range and the NVH speed limit torque curve, at least one vehicle parameter and road information are used to limit the idle charging power of the hybrid vehicle to generate an idle charging power limitation result.

[0049] It can be understood that the idle charging power of the hybrid vehicle in the embodiment of the present application can be the power used to charge the vehicle battery by converting part of the engine's mechanical energy into electrical energy through the generator when the vehicle's engine is in an idle state.

[0050] In the actual implementation process, the embodiment of the present application can limit the idle charging power of the hybrid vehicle based on the voltage-load power consumption range and the NVH speed limit torque curve, using at least one vehicle parameter and road information to generate an idle charging power limitation result, and through strict control of the NVH speed limit torque curve, reduce unnecessary noise and vibration, and significantly improve the quietness and ride comfort in the vehicle.

[0051] The embodiment of the present application can provide users with a more comfortable, economical and environmentally friendly driving experience without affecting vehicle performance by scientifically and reasonably setting the idle charging power limit.

[0052] Optionally, in one embodiment of the present application, the idle charging power of the hybrid vehicle is limited by using at least one vehicle parameter and road information to generate an idle charging power limitation result, including: obtaining at least one vehicle parameter of the hybrid vehicle including the current battery status, battery temperature, ambient temperature and humidity; obtaining at least one road information including road slope, road friction coefficient and traffic conditions; and limiting the idle charging power of the hybrid vehicle using at least one vehicle parameter and at least one road information to generate an idle charging power limitation result.

[0053] It can be understood that the battery state (State of Charge, SOC) in the embodiment of the present application can monitor the current battery state of charge to ensure that it operates within a safe range; the road slope can measure the inclination angle of the road where the vehicle is located in order to predict the upcoming changes in driving resistance; the road friction coefficient can evaluate the friction between the ground and the tire, affecting the stability and safety of the vehicle.

[0054] During the actual implementation process, the embodiments of the present application can obtain vehicle parameters such as the current battery status, battery temperature, ambient temperature and humidity of the hybrid vehicle, and obtain road information such as road slope, road friction coefficient and traffic conditions, and use at least one vehicle parameter and at least one road information to limit the idle charging power of the hybrid vehicle to generate an idle charging power limitation result. By scientifically and reasonably setting the idle charging power limit, it can provide users with a more comfortable, economical and environmentally friendly driving experience without affecting vehicle performance.

[0055] The embodiment of the present application can dynamically adjust the idle charging strategy according to different road conditions and driving behaviors, so that the vehicle can better cope with various complex environments. The calculation method of the present application is simple in principle, simple in calculation, comprehensive in consideration, and easy to promote and use.

[0056] Optionally, in one embodiment of the present application, the idle charging power of the hybrid vehicle is limited by using at least one vehicle parameter and road condition to generate an idle charging power limitation result, and also includes: judging whether the current battery state of the hybrid vehicle meets the first preset state of charge according to the actual scenario of the hybrid vehicle; if the current battery state meets the first preset state of charge, executing the idle shutdown action of the hybrid vehicle according to at least one vehicle parameter and road condition, otherwise judging whether the current battery state meets the second preset state of charge; if the current battery state meets the second preset state of charge, executing the first charging power selection action of the hybrid vehicle according to the air-conditioning switch condition, otherwise judging whether the current battery state meets the third preset state of charge; if the current battery state meets the third preset state of charge, executing the second charging power selection action of the hybrid vehicle, until the current battery state meets the second preset state of charge, executing the first charging power selection action of the hybrid vehicle according to the air-conditioning switch condition, and limiting the idle charging power of the hybrid vehicle according to the first charging power selection action to generate an idle charging power limitation result.

[0057] It can be understood that the idle shutdown action in the embodiment of the present application can be the behavior of automatically shutting down the engine when the hybrid vehicle is stationary (for example, waiting for a traffic light, being stuck in a traffic jam, etc.) if it detects that the power provided by the engine is not needed to maintain the operation of the vehicle or the operation of auxiliary systems (such as air conditioning, generator, etc.).

[0058] For example, Figure 2 As shown, the embodiment of the present application can determine whether the current battery state of the hybrid vehicle meets the first preset state of charge, that is, whether SOC ≥ 15%, when the actual scenario of the hybrid vehicle is a traffic light operating condition such as an urban, suburban or rural road. If so, the idling stop action of the hybrid vehicle is performed according to at least one vehicle parameter and road conditions. Otherwise, it is determined whether the current battery state meets the second preset state of charge, that is, whether 13% ≤ SOC ≤ 15%. If so, the charging power is selected as B or C according to the air-conditioning switch situation until SOC ≥ 18%. Otherwise, it is determined whether the current battery state meets the third preset state of charge, that is, whether SOC ≤ 13%. If so, the charging power is selected as A until SOC ≥ 16%, and then the charging power is selected as B or C according to the air-conditioning switch situation until SOC ≥ 18%. The embodiment of the present application can limit the idle charging power of the hybrid vehicle to generate an idle charging power limitation result.

[0059] For another example, the embodiment of the present application can determine whether the current battery state of the hybrid vehicle meets the first preset state of charge, that is, whether SOC ≥ 23%, when the actual scenario of the hybrid vehicle is a climbing condition. If so, the idling stop action of the hybrid vehicle is performed according to at least one vehicle parameter and road conditions. Otherwise, it is determined whether the current battery state meets the second preset state of charge, that is, whether 18% ≤ SOC ≤ 23%. If so, the charging power is selected as E or F according to the air-conditioning switch situation until SOC ≥ 30% and stops. Otherwise, it is determined whether the current battery state meets the third preset state of charge, that is, whether SOC ≤ 18%. If so, the charging power is selected as D until SOC ≥ 25%, and then the charging power is selected as E or F according to the air-conditioning switch situation until SOC ≥ 30%. The embodiment of the present application can limit the idle charging power of the hybrid vehicle to generate an idle charging power limitation result.

[0060] For another example, the embodiment of the present application can determine whether the current battery state of the hybrid vehicle meets the first preset state of charge, that is, whether SOC ≥ 10%, when the actual scenario of the hybrid vehicle is a climbing condition. If so, the idling stop action of the hybrid vehicle is performed according to at least one vehicle parameter and road conditions. Otherwise, it is determined whether the current battery state meets the second preset state of charge, that is, whether SOC < 10%. If so, the charging power is selected as G until the idling stop occurs when SOC ≥ 20%.

[0061] Among them, the value of A is the ratio of the total power of the vehicle and the system charging and discharging efficiency during low-speed driving under WLTC conditions, B is A plus the steady-state power consumption of the air-conditioning system, C is A plus the reserve power of 1.5, D is A plus the increased power consumption of the vehicle climbing a slope, E is B plus the increased power consumption of the vehicle climbing a slope, F is C plus the increased power consumption of the vehicle climbing a slope, and G is the maximum charging power limited by idle NVH.

[0062] According to the idle charging power limiting method of hybrid electric vehicles proposed in the embodiment of the present application, the user's vehicle usage scenario can be identified to determine the path of the vehicle's idle charging power, the high and low voltage load power consumption range and NVH speed limit torque curve during driving are counted, and the idle charging power of the whole vehicle is calculated according to the whole vehicle parameters and road conditions to limit the idle charging power, so as to meet the user's power economy and comfort. The idle charging power setting method is thus solved without comprehensively considering the efficiency of vehicle components and actual usage scenarios, making it difficult to output the optimal idle charging power of the vehicle, and reducing the user's experience.

[0063] Next, the idle charging power limiting device for a hybrid vehicle according to an embodiment of the present application is described with reference to the accompanying drawings.

[0064] Figure 3 It is a schematic diagram of the structure of an idle charging power limiting device for a hybrid vehicle according to an embodiment of the present application.

[0065] like Figure 3 As shown, the idling charging power limiting device 10 of the hybrid vehicle includes:

[0066] Specifically, the identification module 100 is used to identify the actual scene in which the hybrid vehicle is located, and determine whether the hybrid vehicle meets the preset idle charging start condition according to the actual scene;

[0067] The statistical module 200 is used to count the voltage load power consumption range and the noise, vibration and harshness NVH speed-limited torque curve of the hybrid vehicle during driving when the hybrid vehicle meets the preset idle charging start condition;

[0068] The limiting module 300 is used to limit the idle charging power of the hybrid vehicle based on the voltage-load power consumption range and the NVH speed limit torque curve by using at least one vehicle parameter and road information to generate an idle charging power limitation result.

[0069] Optionally, in one embodiment of the present application, the idle charging power limiting device 10 of the hybrid vehicle further includes: an acquisition module and a determination module.

[0070] Among them, the acquisition module is used to determine whether the hybrid vehicle meets the preset idle charging start conditions according to the actual scenario, and when the hybrid vehicle meets the preset idle charging start conditions, obtain the generator efficiency and engine specific fuel consumption data of the hybrid vehicle.

[0071] The determination module is used to determine the engine speed torque curve that meets the preset optimal power generation condition based on the generator efficiency and engine specific fuel consumption data of the hybrid vehicle.

[0072] Optionally, in one embodiment of the present application, the restriction module 300 includes: a parameter acquisition unit, an information acquisition unit and a result restriction unit.

[0073] The parameter acquisition unit is used to acquire at least one vehicle parameter of the hybrid vehicle including the current battery status, battery temperature, ambient temperature and humidity.

[0074] The information acquisition unit is used to acquire at least one road information of road slope, road friction coefficient and traffic conditions.

[0075] The result limiting unit is used to limit the idle charging power of the hybrid vehicle by using at least one whole vehicle parameter and at least one road information to generate an idle charging power limiting result.

[0076] Optionally, in one embodiment of the present application, the actual scenario of the hybrid vehicle includes at least one of an urban road driving scenario, a highway driving scenario, a traffic light stop and wait scenario, a hill climbing driving scenario, and a parking rest scenario.

[0077] Optionally, in an embodiment of the present application, the restriction module 300 further includes: a judgment unit, a first execution unit, a second execution unit and a restriction unit.

[0078] The judgment unit is used to judge whether the current battery state of the hybrid vehicle meets the first preset state of charge according to the actual scenario of the hybrid vehicle.

[0079] The first execution unit is used to execute the idling stop action of the hybrid vehicle according to at least one vehicle parameter and road conditions when the current battery state meets the first preset charge state, otherwise determine whether the current battery state meets the second preset charge state.

[0080] The second execution unit is used to execute the first charging power selection action of the hybrid vehicle according to the air conditioner switch status when the current battery state meets the second preset charge state, otherwise determine whether the current battery state meets the third preset charge state.

[0081] The limiting unit is used to execute the second charging power selection action of the hybrid vehicle when the current battery state meets the third preset charge state, until the current battery state meets the second preset charge state, execute the first charging power selection action of the hybrid vehicle according to the air-conditioning switch situation, and limit the idle charging power of the hybrid vehicle according to the first charging power selection action to generate an idle charging power limitation result.

[0082] It should be noted that the above explanation of the embodiment of the idle charging power limiting method for a hybrid electric vehicle is also applicable to the idle charging power limiting device for a hybrid electric vehicle of this embodiment, and will not be repeated here.

[0083] According to the idle charging power limiting device of the hybrid vehicle proposed in the embodiment of the present application, it is possible to identify the user's vehicle usage scenario to determine the path of the vehicle's idle charging power, count the high and low voltage load power consumption intervals and the NVH speed limit torque curve during driving, and calculate the idle charging power of the whole vehicle according to the whole vehicle parameters and road conditions to limit the idle charging power, thus achieving an idle charging power setting method that satisfies both the user's power economy and comfort. Thus, the problem that the related technology does not comprehensively consider the efficiency of vehicle components and the actual usage scenario, is difficult to output the optimal idle charging power of the vehicle, and reduces the user's experience is solved.

[0084] Figure 4 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. The vehicle may include:

[0085] Memory 401 , processor 402 , and a computer program stored in the memory 401 and executable on the processor 402 .

[0086] When the processor 402 executes the program, the idle charging power limiting method for the hybrid vehicle provided in the above embodiment is implemented.

[0087] Furthermore, the vehicle also includes:

[0088] The communication interface 403 is used for communication between the memory 401 and the processor 402 .

[0089] The memory 401 is used to store computer programs that can be executed on the processor 402 .

[0090] The memory 401 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0091] If the memory 401, the processor 402 and the communication interface 403 are implemented independently, the communication interface 403, the memory 401 and the processor 402 can be connected to each other through a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 4 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.

[0092] Optionally, in a specific implementation, if the memory 401, the processor 402 and the communication interface 403 are integrated on a chip, the memory 401, the processor 402 and the communication interface 403 can communicate with each other through an internal interface.

[0093] The processor 402 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0094] This embodiment also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the above-mentioned idle charging power limiting method for a hybrid electric vehicle is implemented.

[0095] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0096] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0097] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or N executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0098] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or N wirings (electronic devices), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways as necessary and then storing it in a computer memory.

[0099] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0100] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0101] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0102] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for limiting idle charging power of a hybrid electric vehicle, characterized in that: The following steps are involved: Identifying an actual scenario in which the hybrid vehicle is located, and determining whether the hybrid vehicle meets a preset idle charging start condition according to the actual scenario; If the hybrid vehicle meets the preset idle charging start condition, the voltage load power consumption range and the noise, vibration and harshness (NVH) speed limit torque curve of the hybrid vehicle during driving are counted; Based on the voltage-load power consumption range and the NVH speed limit torque curve, the idle charging power of the hybrid vehicle is limited by using at least one vehicle parameter and road information to generate a limitation result of the idle charging power.

2. The method according to claim 1, characterized in that After determining whether the hybrid vehicle meets the preset idle charging start condition according to the actual scenario, the method further includes: If the hybrid vehicle meets the preset idle charging start condition, then acquiring the generator efficiency and engine specific fuel consumption data of the hybrid vehicle; Based on the generator efficiency of the hybrid vehicle and the engine specific fuel consumption data, an engine speed torque curve that meets a preset optimal power generation condition is determined.

3. The method according to claim 1, characterized in that The method of limiting the idle charging power of the hybrid vehicle by using at least one vehicle parameter and road information to generate a result of limiting the idle charging power includes: Acquiring at least one vehicle parameter of the hybrid electric vehicle including a current battery state, a battery temperature, an ambient temperature and a humidity; Acquiring at least one road information of road slope, road friction coefficient and traffic condition; The idle charging power of the hybrid vehicle is limited by using the at least one vehicle parameter and the at least one road information to generate a limitation result of the idle charging power.

4. The method according to claim 1, characterized in that: The actual scenarios of the hybrid electric vehicle include at least one of an urban road driving scenario, a highway driving scenario, a traffic light stop waiting scenario, a hill climbing driving scenario, and a parking rest scenario.

5. The method according to claim 4, characterized in that The method of limiting the idle charging power of the hybrid vehicle by using at least one vehicle parameter and a road condition to generate a limiting result of the idle charging power further includes: Determining whether a current battery state of the hybrid vehicle satisfies a first preset state of charge according to an actual scenario of the hybrid vehicle; If the current battery state satisfies the first preset state of charge, then executing the idle stop action of the hybrid vehicle according to the at least one vehicle parameter and the road condition, otherwise determining whether the current battery state satisfies the second preset state of charge; If the current battery state satisfies the second preset state of charge, the first charging power selection action of the hybrid vehicle is performed according to the air conditioner switch status; otherwise, it is determined whether the current battery state satisfies the third preset state of charge; If the current battery state satisfies the third preset state of charge, the second charging power selection action of the hybrid vehicle is executed. Until the current battery state satisfies the second preset state of charge, the first charging power selection action of the hybrid vehicle is executed according to the air-conditioning switch condition, and the idle charging power of the hybrid vehicle is limited according to the first charging power selection action to generate the idle charging power limitation result.

6. An idling charging power limiting device for a hybrid vehicle, characterized in that: include: An identification module, used to identify the actual scene in which the hybrid electric vehicle is located, and determine whether the hybrid electric vehicle meets the preset idle charging start condition according to the actual scene; A statistical module, for counting the voltage load power consumption range and the noise, vibration and harshness (NVH) speed-limited torque curve of the hybrid vehicle during driving when the hybrid vehicle meets the preset idle charging start condition; A limiting module is used to limit the idle charging power of the hybrid vehicle based on the voltage-load power consumption range and the NVH speed limit torque curve using at least one vehicle parameter and road information to generate a limiting result of the idle charging power.

7. The device according to claim 6, characterized in that Also includes: an acquisition module, configured to, after determining whether the hybrid vehicle meets a preset idle charging start condition according to the actual scenario, acquire generator efficiency and engine specific fuel consumption data of the hybrid vehicle when the hybrid vehicle meets the preset idle charging start condition; The determination module is used to determine the engine speed torque curve that meets the preset optimal power generation condition based on the generator efficiency of the hybrid vehicle and the engine specific fuel consumption data.

8. The device according to claim 6, characterized in that The restriction module includes: A parameter acquisition unit, used to acquire at least one vehicle parameter of the hybrid electric vehicle among the current battery state, battery temperature, ambient temperature and humidity; An information acquisition unit, used to acquire at least one road information of a road slope, a road friction coefficient and a traffic condition; The result limiting unit is used to limit the idle charging power of the hybrid vehicle by using the at least one vehicle parameter and the at least one road information to generate the idle charging power limitation result.

9. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the idle charging power limiting method for a hybrid electric vehicle as described in any one of claims 1 to 5.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the idle charging power limiting method for a hybrid electric vehicle as described in any one of claims 1 to 5.

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