Hybrid vehicle idling charge power limiting method, device and vehicle

Abstract

The application relates to an idling charging power limiting method and device of a hybrid vehicle and a vehicle, wherein the method comprises the following steps: identifying an actual scene of the hybrid vehicle, and judging whether the hybrid vehicle meets preset idling charging starting conditions according to the actual scene; if the hybrid vehicle meets the preset idling charging starting conditions, then the voltage load power consumption interval of the hybrid vehicle in the driving process and a noise, vibration and harshness (NVH) limited speed torque curve are counted; and based on the voltage load power consumption interval and the NVH limited speed torque curve, at least one vehicle parameter and road information are used to limit the idling charging power of the hybrid vehicle, so as to generate a limiting result of the idling charging power. Therefore, the problem that the related art cannot comprehensively consider the vehicle component efficiency and the actual use scene, and it is difficult to output the optimal idling charging power of the vehicle, and the use experience of the user is reduced, is solved.

Description

Technical Field

[0001] This application relates to the field of vehicle control technology, and in particular to a method, device and vehicle for limiting the idling charging power of a hybrid electric vehicle. Background Technology

[0002] In urban traffic environments, vehicles are frequently idling, such as when waiting at traffic lights or stopping for a break. For hybrid vehicles, utilizing these short pauses for charging (i.e., idling charging) can not only extend battery range but also optimize the vehicle's energy management strategy, further improving fuel economy and reducing emissions. However, improper idling charging power settings can lead to unnecessary engine wear, increased noise and vibration (NVH issues), and even affect user comfort.

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

[0004] However, the relevant technologies do not take into account the efficiency of vehicle components and actual usage scenarios, making it difficult to output the optimal idling charging power for the vehicle, which reduces the user experience and urgently needs to be improved. Summary of the Invention

[0005] This application provides a method, device, and vehicle for limiting the idling charging power of a hybrid electric vehicle, in order to solve the problems of related technologies that do not comprehensively consider the efficiency of vehicle components and actual usage scenarios, making it difficult to output the optimal idling charging power of the vehicle and reducing the user experience.

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

[0007] Optionally, in one embodiment of this application, after determining whether the hybrid vehicle meets the preset idle charging start-up conditions based on the actual scenario, the method further includes: if the hybrid vehicle meets the preset idle charging start-up conditions, then acquiring the generator efficiency and engine specific fuel consumption data of the hybrid vehicle; and based on the generator efficiency and engine specific fuel consumption data of the hybrid vehicle, determining the engine speed and torque curve that meets the preset optimal power generation conditions.

[0008] Optionally, in one embodiment of this application, the step of limiting the idle charging power of the hybrid vehicle using at least one vehicle parameter and road information to generate the limiting result of the idle charging power includes: acquiring at least one vehicle parameter among the current battery state, battery temperature, ambient temperature, and humidity of the hybrid vehicle; acquiring at least one road information among road slope, road surface friction coefficient, and traffic conditions; and using the at least one vehicle parameter and the at least one road information to limit the idle charging power of the hybrid vehicle to generate the limiting result of the idle charging power.

[0009] Optionally, in one embodiment of this application, the actual driving scenarios of the hybrid vehicle include at least one of the following: urban road driving scenario, highway driving scenario, traffic light waiting scenario, hill climbing scenario, and parking and rest scenario.

[0010] Optionally, in one embodiment of this application, the step of limiting the idle charging power of the hybrid vehicle using at least one vehicle parameter and road conditions to generate the limiting result of the idle charging power further includes: determining whether the current battery state of the hybrid vehicle meets a first preset state of charge based on the actual scenario of the hybrid vehicle; if the current battery state meets the first preset state of charge, then performing an idle stop action of the hybrid vehicle based on at least one vehicle parameter and the road conditions; otherwise, determining whether the current battery state meets a second preset state of charge; if the current battery state meets the second preset state of charge, then performing a first charging power selection action of the hybrid vehicle based on the air conditioning switch status; otherwise, determining whether the current battery state meets a third preset state of charge; if the current battery state meets the third preset state of charge, then performing a second charging power selection action of the hybrid vehicle, until the current battery state meets the second preset state of charge, then performing a first charging power selection action of the hybrid vehicle based on the air conditioning switch status, and limiting the idle charging power of the hybrid vehicle based on the first charging power selection action to generate the limiting result of the idle charging power.

[0011] A second aspect of this application provides an idle charging power limiting device for a hybrid electric vehicle, comprising: an identification module for identifying the actual scenario in which the hybrid electric vehicle is located, and determining whether the hybrid electric vehicle meets preset idle charging start conditions based on the actual scenario; a statistics module for statistically analyzing the voltage load power consumption range and noise, vibration, and harshness (NVH) speed-limiting torque curves of the hybrid electric vehicle during driving when the hybrid electric vehicle meets the preset idle charging start conditions; and a limiting module for limiting the idle charging power of the hybrid electric vehicle based on the voltage load power consumption range and the NVH speed-limiting torque curves, using at least one vehicle parameter and road information, to generate a limiting result for the idle charging power.

[0012] Optionally, in one embodiment of this application, it further includes: an acquisition module, configured to acquire the generator efficiency and engine specific fuel consumption data of the hybrid vehicle when the hybrid vehicle meets the preset idle charging start-up conditions after determining whether the hybrid vehicle meets the preset idle charging start-up conditions based on the actual scenario; and a determination module, configured to determine the engine speed and torque curve that meets the preset optimal power generation conditions based on the generator efficiency and engine specific fuel consumption data of the hybrid vehicle.

[0013] Optionally, in one embodiment of this application, the limiting module includes: a parameter acquisition unit, used to acquire at least one vehicle parameter among the current battery state, battery temperature, ambient temperature, and humidity of the hybrid vehicle; an information acquisition unit, used to acquire at least one road information among road slope, road surface friction coefficient, and traffic conditions; and a result limiting 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, so as to generate the limiting result of the idle charging power.

[0014] Optionally, in one embodiment of this application, the actual driving scenarios of the hybrid vehicle include at least one of the following: urban road driving scenario, highway driving scenario, traffic light waiting scenario, hill climbing scenario, and parking and rest scenario.

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

[0016] A third aspect of this application provides a vehicle, including: 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 idling charging power limiting method for a hybrid electric vehicle as described in the above embodiments.

[0017] A fourth aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for limiting the idling charging power of a hybrid electric vehicle.

[0018] This application's embodiments can identify user driving scenarios to determine the path of vehicle idling charging power, statistically analyze the high and low voltage load power consumption range and NVH speed-limited torque curves during driving, and calculate the vehicle's idling charging power based on vehicle parameters and road conditions to limit the idling charging power. This method sets the idling charging power to satisfy both user needs for power and economy as well as comfort. Therefore, it solves the problems of related technologies that do not comprehensively consider vehicle component efficiency and actual usage scenarios, making it difficult to output the optimal idling charging power and reducing the user experience.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

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

[0021] Figure 1 This is a flowchart of a method for limiting the idling charging power of a hybrid electric vehicle according to an embodiment of this application;

[0022] Figure 2 This is a flowchart of an idle charging power limiting method for a hybrid electric vehicle according to an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the structure of an idle charging power limiting device for a hybrid electric vehicle according to an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of this application. Detailed Implementation

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

[0026] The following description, with reference to the accompanying drawings, outlines a method, apparatus, and vehicle for limiting the idle charging power of a hybrid electric vehicle according to embodiments of this application. Addressing the problem mentioned in the background art that it fails to comprehensively consider vehicle component efficiency and actual usage scenarios, making it difficult to output the optimal idle charging power and thus reducing the user experience, this application provides a method for limiting the idle charging power of a hybrid electric vehicle. This method identifies the user's driving scenario to determine the path of the vehicle's idle charging power, statistically analyzes the high and low voltage load power consumption range and NVH speed-limiting torque curve during driving, and calculates the vehicle's idle charging power based on vehicle parameters and road conditions to limit the idle charging power. This method satisfies both user needs for power and economy while also providing a comfortable idle charging power setting. Therefore, it solves the problems of related technologies failing to comprehensively consider vehicle component efficiency and actual usage scenarios, making it difficult to output the optimal idle charging power and reducing the user experience.

[0027] Specifically, Figure 1 This is a schematic flowchart of a method for limiting the idling charging power of a hybrid electric vehicle, provided in an embodiment of this application.

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

[0029] In step S101, the actual scenario in which the hybrid vehicle is located is identified, and it is determined whether the hybrid vehicle meets the preset idle charging start conditions based on the actual scenario.

[0030] It is understandable that the preset idle charging start condition in this application embodiment can be the 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 effectively solve users' range anxiety. Therefore, before there is a significant breakthrough in the range of electric vehicles, hybrid models will have considerable room for growth. Idle conditions are a scenario where users have a strong perception of the vehicle. This application proposes a calculation scheme that combines user perception and energy consumption optimization, providing a possibility for solving the problem of poor user perception in idle scenarios.

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

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

[0033] It should be noted that the preset idle charging start conditions can be set by those skilled in the art according to the actual situation, and no specific restrictions are imposed here.

[0034] Optionally, in one embodiment of this application, the actual scenarios of the hybrid vehicle include at least one of urban road driving scenario, highway driving scenario, traffic light waiting scenario, hill climbing scenario, and parking and rest scenario.

[0035] It is understood that the traffic light waiting scenario in this application embodiment is a short stop scenario during driving, and the parking and rest scenario is a long stop scenario during driving.

[0036] In actual implementation, the real-world scenarios of hybrid vehicles in this application include urban road driving scenarios, highway driving scenarios, traffic light waiting scenarios, hill climbing scenarios, and parking and resting scenarios. Taking into account scenarios such as short stops during driving and long stops while parked, an idle charging power setting method is proposed that satisfies both user power and economy as well as comfort.

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

[0038] Optionally, in one embodiment of this application, after determining whether the hybrid vehicle meets the preset idle charging start-up conditions based on the actual scenario, the method further includes: if the hybrid vehicle meets the preset idle charging start-up conditions, then acquiring the generator efficiency and engine specific fuel consumption data of the hybrid vehicle; and based on the generator efficiency and engine specific fuel consumption data of the hybrid vehicle, determining the engine speed and torque curve that meets the preset optimal power generation conditions.

[0039] It is understood that the preset optimal power generation conditions in the embodiments of this application can be the optimal engine speed and torque curve.

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

[0041] The embodiments of this application not only improve energy utilization efficiency, but also optimize the engine's operating state, ensuring optimal performance during idling charging.

[0042] It should be noted that the preset optimal power generation conditions can be set by those skilled in the art according to the actual situation, and no specific restrictions are imposed here.

[0043] In step S102, if the hybrid vehicle meets the preset idle charging start conditions, the voltage load power consumption range and the noise, vibration and acoustic roughness (NVH) speed-limited torque curves of the hybrid vehicle during driving are statistically analyzed.

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

[0045] Specifically, the embodiments of this application can statistically analyze the voltage load power consumption range and noise, vibration and acoustic roughness (NVH) speed-limited torque curves of a hybrid electric vehicle during driving when the hybrid electric vehicle meets certain idle charging start conditions. This provides a basis for understanding the load of the battery or generator under different operating conditions and formulating a reasonable idle charging strategy, reflecting the sound quality, vibration level and overall comfort of the vehicle's interior and exterior.

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

[0047] It should be noted that the preset optimal power generation conditions can be set by those skilled in the art according to the actual situation, and no specific restrictions are imposed here.

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

[0049] It is understood that the idle charging power of the hybrid vehicle in this application embodiment can be the power at which the vehicle converts a portion of the mechanical energy of the engine into electrical energy through the generator when the engine is idling, and uses this electrical energy to charge the on-board battery.

[0050] In actual implementation, the embodiments of this application can limit the idling charging power of hybrid vehicles based on voltage load power consumption range and NVH speed-limiting torque curve, using at least one vehicle parameter and road information to generate the idling charging power limitation result. By strictly controlling the NVH speed-limiting torque curve, unnecessary noise and vibration are reduced, and the quietness and ride comfort inside the vehicle are significantly improved.

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

[0052] Optionally, in one embodiment of this application, the idling charging power of a hybrid electric vehicle is limited using at least one vehicle parameter and road information to generate a limitation result for the idling charging power, including: acquiring at least one vehicle parameter among the current battery state, battery temperature, ambient temperature, and humidity of the hybrid electric vehicle; acquiring at least one road information among road slope, road surface friction coefficient, and traffic conditions; and using at least one vehicle parameter and at least one road information to limit the idling charging power of the hybrid electric vehicle to generate a limitation result for the idling charging power.

[0053] It is understood that the State of Charge (SOC) in this application embodiment can monitor the current state of charge of the battery to ensure that it operates within a safe range; the road slope can measure the road inclination angle at the vehicle's location in order to predict upcoming changes in driving resistance; and the road surface friction coefficient can assess the friction between the ground and the tires, affecting the vehicle's stability and safety.

[0054] In actual implementation, the embodiments of this application can obtain vehicle parameters such as the current battery status, battery temperature, ambient temperature and humidity of the hybrid vehicle, and road information such as road slope, road surface friction coefficient and traffic conditions. By using at least one vehicle parameter and at least one piece of road information, the idle charging power of the hybrid vehicle can be limited to generate the idle charging power limitation result. By scientifically and reasonably setting the idle charging power limitation, a more comfortable, economical and environmentally friendly driving experience can be provided to users without affecting vehicle performance.

[0055] The embodiments of this application can dynamically adjust the idling charging strategy according to different road conditions and driving behavior, enabling the vehicle to better cope with various complex environments. The calculation method of this application is simple in principle, easy to calculate, comprehensive in consideration, and easy to promote and use.

[0056] Optionally, in one embodiment of this application, limiting the idle charging power of the hybrid vehicle using at least one vehicle parameter and road conditions to generate a limiting result for the idle charging power further includes: determining whether the current battery state of the hybrid vehicle meets a first preset state of charge based on the actual scenario of the hybrid vehicle; if the current battery state meets the first preset state of charge, then performing an idle stop action of the hybrid vehicle based on at least one vehicle parameter and road conditions; otherwise, determining whether the current battery state meets a second preset state of charge; if the current battery state meets the second preset state of charge, then performing a first charging power selection action of the hybrid vehicle based on the air conditioning switch status; otherwise, determining whether the current battery state meets a third preset state of charge; if the current battery state meets the third preset state of charge, then performing a second charging power selection action of the hybrid vehicle, until the current battery state meets the second preset state of charge, then performing a first charging power selection action of the hybrid vehicle based on the air conditioning switch status, and limiting the idle charging power of the hybrid vehicle based on the first charging power selection action to generate a limiting result for the idle charging power.

[0057] It is understood that the idle stop action in the embodiments of this application can be the behavior of a hybrid vehicle automatically shutting off the engine when it detects that the engine does not need to provide power to maintain vehicle operation or the operation of auxiliary systems (such as air conditioning, generator, etc.) while the vehicle is stationary (e.g., waiting at traffic lights, in traffic jams).

[0058] For example, such as Figure 2 As shown, in the embodiments of this application, when the actual scenario of the hybrid vehicle is a traffic light condition such as urban, suburban, or rural roads, it can determine whether the current battery state of the hybrid vehicle meets the first preset state of charge, i.e., whether the SOC ≥ 15%. If so, the vehicle will perform an idle stop action based on at least one vehicle parameter and road conditions. Otherwise, it will determine whether the current battery state meets the second preset state of charge, i.e., whether the SOC ≤ 13% ≤ 15%. If so, the charging power will be selected as B or C based on the air conditioning switch status until the SOC ≥ 18%. Otherwise, it will determine whether the current battery state meets the third preset state of charge, i.e., whether the SOC ≤ 13%. If so, the charging power will be selected as A until the SOC ≥ 16%, then the charging power will be selected as B or C based on the air conditioning switch status until the SOC ≥ 18%. The embodiments of this application can limit the idle charging power of the hybrid vehicle to generate a limited idle charging power result.

[0059] For example, in the actual scenario of a hybrid electric vehicle (HEV) climbing a hill, this application embodiment can determine whether the current battery state of the HEV meets the first preset state of charge (SOC), i.e., whether SOC ≥ 23%. If yes, the HEV is stopped at idle based on at least one vehicle parameter and road conditions. Otherwise, it determines whether the current battery state meets the second preset state of charge (SOC), i.e., whether 18% ≤ SOC ≤ 23%. If yes, the charging power is selected as E or F based on the air conditioning status until SOC ≥ 30%. Otherwise, it determines whether the current battery state meets the third preset state of charge (SOC), i.e., whether SOC ≤ 18%. If yes, the charging power is selected as D until SOC ≥ 25%, then the charging power is switched to E or F based on the air conditioning status until SOC ≥ 30%. This application embodiment can limit the idle charging power of the HEV to generate a limited idle charging power result.

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

[0061] Where A is the ratio of the total power of the vehicle to 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 due to vehicle climbing; E is B plus the increased power consumption due to vehicle climbing; F is C plus the increased power consumption due to vehicle climbing; and G is the maximum charging power limited by idling NVH.

[0062] The idling charging power limiting method for hybrid electric vehicles proposed in this application can identify the user's driving scenario to determine the path of the vehicle's idling charging power, statistically analyze the high and low voltage load power consumption range and NVH speed-limiting torque curve during driving, and calculate the vehicle's idling charging power based on vehicle parameters and road conditions to limit the idling charging power. This method satisfies both the user's needs for power and economy as well as comfort. Therefore, it solves the problem that related technologies do not comprehensively consider the efficiency of vehicle components and actual usage scenarios, making it difficult to output the optimal idling charging power and reducing the user experience.

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

[0064] Figure 3 This is a schematic diagram of the idling charging power limiting device for a hybrid electric vehicle according to an embodiment of this application.

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

[0066] Specifically, the identification module 100 is used to identify the actual scenario in which the hybrid vehicle is located, and to determine whether the hybrid vehicle meets the preset idle charging start conditions based on the actual scenario.

[0067] The statistics module 200 is used to statistically analyze the voltage load power consumption range and noise, vibration and acoustic roughness (NVH) speed-limited torque curves of the hybrid electric vehicle during driving when the preset idle charging start conditions are met.

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

[0069] Optionally, in one embodiment of this application, the idling charging power limiting device 10 for a hybrid electric vehicle further includes an acquisition module and a determination module.

[0070] The acquisition module is used to acquire the generator efficiency and engine specific fuel consumption data of the hybrid vehicle after determining whether the hybrid vehicle meets the preset idle charging start conditions based on the actual scenario.

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

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

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

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

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

[0076] Optionally, in one embodiment of this application, the actual scenarios of the hybrid vehicle include at least one of urban road driving scenario, highway driving scenario, traffic light waiting scenario, hill climbing scenario, and parking and rest scenario.

[0077] Optionally, in one embodiment of this 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 determine whether the current battery state of the hybrid vehicle meets the first preset state of charge based on the actual scenario of the hybrid vehicle.

[0079] The first execution unit is used to perform an idle stop action of the hybrid vehicle based on at least one vehicle parameter and road conditions when the current battery state meets the first preset state of charge; otherwise, it determines whether the current battery state meets the second preset state of charge.

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

[0081] The limiting unit is used to perform a second charging power selection action of the hybrid vehicle when the current battery state meets the third preset state of charge, until the current battery state meets the second preset state of charge, and then perform a first charging power selection action of the hybrid vehicle according to the air conditioning switch status, and limit the idle charging power of the hybrid vehicle according to the first charging power selection action, so as to generate a limiting result of idle charging power.

[0082] It should be noted that the explanation of the aforementioned embodiment of the idling charging power limiting method for hybrid electric vehicles also applies to the idling charging power limiting device for hybrid electric vehicles in this embodiment, and will not be repeated here.

[0083] The idle charging power limiting device for hybrid vehicles proposed in this application can identify the user's driving scenario to determine the path of the vehicle's idle charging power, statistically analyze the high and low voltage load power consumption range and NVH speed-limiting torque curve during driving, and calculate the vehicle's idle charging power based on vehicle parameters and road conditions to limit the idle charging power. This method satisfies both the user's power and economy requirements while also ensuring comfort. Therefore, it solves the problem of related technologies failing to comprehensively consider vehicle component efficiency and actual usage scenarios, making it difficult to output the optimal idle charging power and thus reducing the user experience.

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

[0085] The memory 401, the processor 402, and the computer program stored on the memory 401 and capable of running on the processor 402.

[0086] When processor 402 executes the program, it implements the idling charging power limiting method for hybrid vehicles provided in the above embodiments.

[0087] Furthermore, the vehicle also includes:

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

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

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

[0091] If the memory 401, processor 402, and communication interface 403 are implemented independently, then the communication interface 403, memory 401, and processor 402 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of representation, Figure 4 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

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

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

[0094] This embodiment also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for limiting the idling charging power of a hybrid electric vehicle.

[0095] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

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

[0097] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0098] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0099] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0100] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0101] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0102] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method for limiting the idling charging power of a hybrid electric vehicle, characterized in that, Includes the following steps: Identify the actual scenario in which the hybrid vehicle is located, and determine whether the hybrid vehicle meets the preset idle charging start conditions based on the actual scenario. If the hybrid vehicle meets the preset idle charging start condition, then the voltage load power consumption range and the noise, vibration and acoustic roughness (NVH) speed-limited torque curves of the hybrid vehicle during driving are statistically analyzed. Based on the voltage load power consumption range and the NVH speed-limited torque curve, the idle charging power of the hybrid vehicle is limited using at least one vehicle parameter and road information to generate the limitation result of the idle charging power; The process further includes, after determining whether the hybrid vehicle meets the preset idle charging start-up conditions based on the actual scenario, the following steps are also included: if the hybrid vehicle meets the preset idle charging start-up conditions, then the generator efficiency and engine fuel consumption data of the hybrid vehicle are obtained; based on the generator efficiency and engine fuel consumption data of the hybrid vehicle, the engine speed and torque curve that meets the preset optimal power generation conditions is determined. The method of limiting the idle charging power of the hybrid vehicle using at least one vehicle parameter and road information to generate the limiting result of the idle charging power further includes: Determine whether the current battery state of the hybrid vehicle meets the first preset state of charge based on the actual scenario of the hybrid vehicle. If the current battery state meets the first preset state of charge, then the idling stop action of the hybrid vehicle is executed according to the at least one vehicle parameter and the road information; otherwise, it is determined whether the current battery state meets the second preset state of charge. If the current battery state meets the second preset state of charge, then the first charging power selection action of the hybrid vehicle is executed according to the air conditioning switch status; otherwise, it is determined whether the current battery state meets the third preset state of charge. If the current battery state meets the third preset state of charge, the second charging power selection action of the hybrid vehicle is executed until the current battery state meets the second preset state of charge. Then, the first charging power selection action of the hybrid vehicle is executed according to the air conditioning switch status, 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.

2. The method according to claim 1, characterized in that, The method of limiting the idle charging power of the hybrid vehicle using at least one vehicle parameter and road information to generate the limiting result of the idle charging power includes: Obtain at least one of the following vehicle parameters from the hybrid vehicle: current battery status, battery temperature, ambient temperature, and humidity. Obtain at least one piece of road information from road gradient, road surface friction coefficient, and traffic conditions; The idle charging power of the hybrid vehicle is limited using the at least one vehicle parameter and the at least one road information to generate the result of the idle charging power limitation.

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

4. An idle charging power limiting device for a hybrid electric vehicle, characterized in that, The method for limiting the idling charging power of a hybrid electric vehicle as described in any one of claims 1-3 includes: The identification module is used to identify the actual scenario in which the hybrid vehicle is located, and to determine whether the hybrid vehicle meets the preset idle charging start conditions based on the actual scenario. The statistics module is used to statistically analyze the voltage load power consumption range and noise, vibration and acoustic roughness (NVH) speed-limited torque curves of the hybrid vehicle during driving when the preset idle charging start condition is met. The 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-limiting torque curve, using at least one vehicle parameter and road information, so as to generate the limiting result of the idle charging power.

5. The apparatus according to claim 4, characterized in that, Also includes: The acquisition module is used to acquire the generator efficiency and engine specific fuel consumption data of the hybrid vehicle when the hybrid vehicle meets the preset idle charging start conditions after determining whether the hybrid vehicle meets the preset idle charging start conditions based on the actual scenario. The determination module 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.

6. The apparatus according to claim 4, characterized in that, The limiting module includes: The parameter acquisition unit is used to acquire at least one of the vehicle parameters of the hybrid electric vehicle, including the current battery status, battery temperature, ambient temperature, and humidity. The information acquisition unit is used to acquire at least one type of road information, including road slope, road surface friction coefficient, and traffic conditions. The result limiting unit is 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, so as to generate the limit result of the idle charging power.

7. A vehicle, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the idling charging power limiting method for a hybrid electric vehicle as described in any one of claims 1-3.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the idling charging power limiting method for a hybrid electric vehicle as described in any one of claims 1-3.

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