Vehicle control method, storage medium, electronic device, and vehicle

Abstract

A vehicle control method, a storage medium, an electronic device, and a vehicle (400). The vehicle control method comprises: determining first required heat dissipation amounts of cooling branches (12); and controlling a flow distribution apparatus (11) according to the flow distribution ratio so as to distribute corresponding amounts of cooling liquid to different cooling branches (12), wherein the flow distribution ratio is determined on the basis of the first required heat dissipation amounts.

Description

Vehicle control method, storage medium, electronic device, and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application number 202410374042.5, filed with the China Patent Office on March 27, 2024, entitled “Vehicle Control Method, Storage Medium, Electronic Device and Vehicle,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the field of vehicle technology, and in particular, to a vehicle control method, a storage medium, an electronic device, and a vehicle. Background Art

[0004] With the development of vehicles, the issue of vehicle energy consumption is gaining increasing attention. Relevant technologies for reducing energy consumption focus on improving component efficiency. However, due to the existence of marginal effects, continued research and development based on component efficiency is unlikely to bring significant energy savings. Currently, optimizing vehicle operation control is gradually becoming a viable solution to reduce vehicle energy consumption.

[0005] Summary of the Invention

[0006] The present disclosure aims to provide a vehicle control method, a storage medium, an electronic device, and a vehicle.

[0007] To achieve the above objectives, according to a first aspect of the present disclosure, a vehicle control method is provided, wherein the vehicle includes a cooling system, the cooling system includes a flow distribution device and at least two cooling branches, the flow distribution device being connected to each cooling branch respectively; the method comprising:

[0008] Confirm the first required heat dissipation of each cooling branch;

[0009] The flow distribution device is controlled according to a flow distribution ratio to distribute corresponding amounts of coolant to different cooling branches, wherein the flow distribution ratio is determined according to the first required heat dissipation.

[0010] Optionally, the cooling system further comprises: a water pump, a radiator and a fan, wherein the fan is used to heat the radiator, and the water pump, the radiator, the flow distribution device, and each cooling branch constitute a cooling circuit; the method further comprises:

[0011] Determine water pump control parameter information and fan control parameter information;

[0012] The water pump is controlled according to the water pump control parameter information, and the fan is controlled according to the fan control parameter information, so that the heat dissipation of the radiator exceeds the sum of the first required heat dissipations.

[0013] Optionally, the method further includes:

[0014] identifying a target operating parameter combination from at least two operating parameter combinations;

[0015] Among them, each working parameter combination includes water pump control parameter information and fan control parameter information, at least one working parameter combination corresponds to a heat dissipation threshold, and the target working parameter combination is: corresponding to the minimum value of the heat dissipation threshold that exceeds the sum of the first required heat dissipation.

[0016] Optionally, the method further includes:

[0017] When there are at least two target operating parameter combinations, an optimal operating parameter combination is determined, wherein each operating parameter combination corresponds to a first power loss, and the optimal operating parameter combination corresponds to the minimum value of the at least two first power losses.

[0018] Optionally, each cooling branch is provided with at least one device to be cooled; and determining the first required heat dissipation of each cooling branch includes:

[0019] Determine the second required heat dissipation of each device to be cooled;

[0020] The first required heat dissipation is determined, wherein the first required heat dissipation is the sum of the second required heat dissipations in the same cooling branch.

[0021] Optionally, determining the second required heat dissipation of each device to be cooled includes:

[0022] Driving parameter information of the vehicle is acquired, and the second required heat dissipation of each device to be cooled is determined according to the driving parameter information.

[0023] Optionally, determining the second required heat dissipation of each device to be cooled according to the driving parameter information includes:

[0024] determining the required power of each device to be cooled according to the driving parameter information;

[0025] According to the required power of each device to be cooled, a second required heat dissipation amount of each device to be cooled is determined.

[0026] Optionally, the at least two cooling branches include a first cooling branch and a second cooling branch, the device to be cooled provided in the first cooling branch includes: a first drive assembly, and the device to be cooled provided in the second cooling branch includes: a second drive assembly; determining the required power of each device to be cooled based on the driving parameter information includes:

[0027] When the driving parameter information represents four-wheel drive, a first power requirement and a second power requirement are confirmed, wherein the first power requirement and the second power requirement are confirmed based on the total driving power requirement and at least one preset distribution ratio, the first power requirement corresponds to the first drive assembly, the second power requirement corresponds to the second drive assembly, and the total driving power requirement is determined based on the driving parameter information.

[0028] Optionally, the at least two cooling branches include a first cooling branch and a second cooling branch, the devices to be cooled provided in the first cooling branch are: a first drive assembly and a second drive assembly, and the devices to be cooled provided in the second cooling branch are: a power generation assembly; determining the required power of each device to be cooled based on the driving parameter information includes:

[0029] When the driving parameter information characterizes four-wheel drive and has power generation demand, the power generation power demand, the third power demand and the fourth power demand are confirmed, wherein the third power demand and the fourth power demand are confirmed based on the total driving power demand and at least one preset distribution ratio, the third power demand corresponds to the first drive assembly, the fourth power demand corresponds to the second drive assembly, the power generation power demand corresponds to the power generation assembly, and the total driving power demand and the power generation power demand are determined based on the driving parameter information.

[0030] Optionally, the at least two cooling branches further include a third cooling branch, and the device to be cooled provided in the third cooling branch is: a power generation assembly; and determining the required power of each device to be cooled according to the driving parameter information includes:

[0031] When the driving parameter information characterizes four-wheel drive and has power generation demand, the power generation power demand, the first power demand and the second power demand are confirmed, wherein the first power demand and the second power demand are confirmed based on the total driving demand and at least one preset distribution ratio, the first power demand corresponds to the first drive assembly, the second power demand corresponds to the second drive assembly, the power generation power demand corresponds to the power generation assembly, and the total driving power demand and the power generation power demand are determined based on the driving parameter information.

[0032] Optionally, the device to be cooled in the first cooling branch or the second cooling branch further includes: a power generation assembly; and determining the required power of each device to be cooled according to the driving parameter information includes:

[0033] When the driving parameter information characterizes four-wheel drive and has power generation demand, the power generation power demand, the first power demand and the second power demand are confirmed, wherein the first power demand and the second power demand are confirmed based on the total driving power demand and at least one preset distribution ratio, the first power demand corresponds to the first driving assembly, the second power demand corresponds to the second driving assembly, the power generation power demand corresponds to the power generation assembly, and the total driving power demand and the power generation power demand are determined based on the driving parameter information.

[0034] Optionally, the method further includes:

[0035] A target allocation ratio is determined from the at least one preset allocation ratio, wherein each preset allocation ratio corresponds to a whole vehicle power loss, and the target allocation ratio corresponds to a minimum value of the whole vehicle power loss.

[0036] Optionally, the at least two cooling branches include a first cooling branch and a second cooling branch, the device to be cooled provided in the first cooling branch is: a third drive assembly, and the device to be cooled provided in the second cooling branch is: a power generation assembly; determining the required power of each device to be cooled based on the driving parameter information includes:

[0037] When the driving parameter information represents two-wheel drive and has power generation requirements, the power generation power requirement and the fifth power requirement are confirmed, wherein the fifth power requirement corresponds to the third drive assembly, and the power generation power requirement corresponds to the power generation assembly, and the fifth power requirement and the power generation power requirement are determined based on the driving parameter information.

[0038] According to a second aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the vehicle control method described in the first aspect of the present disclosure are implemented.

[0039] According to a third aspect of an embodiment of the present disclosure, there is provided an electronic device, including:

[0040] A non-volatile memory, comprising a main program area and a backup program area;

[0041] The processor is used to execute a computer program to implement the steps of the vehicle control method described in the first aspect of the present disclosure.

[0042] According to a fourth aspect of an embodiment of the present disclosure, a vehicle is provided, comprising the electronic device described in the third aspect of the present disclosure.

[0043] Through the above technical solution, the flow distribution device is connected to each cooling branch. Therefore, after determining the first required heat dissipation capacity of each cooling branch, the flow distribution ratio of each cooling branch can be further determined based on the first required heat dissipation capacity of each cooling branch. Then, the flow distribution device can be controlled based on the flow distribution ratio to distribute corresponding amounts of coolant to different cooling branches. Compared to fixed-ratio flow distribution control for each cooling branch, flow distribution adjustment based on the heat dissipation requirements of the cooling branches can achieve precise flow control for different cooling branches, avoid cooling redundancy in the cooling branches, reduce the average power of the cooling accessories, and thus reduce the energy consumption of the entire vehicle.

[0044] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0046] FIG1 is a schematic structural diagram of a vehicle cooling system according to an exemplary embodiment.

[0047] FIG2 is a flowchart showing a vehicle control method according to an exemplary embodiment.

[0048] FIG3 is a flowchart showing another vehicle control method according to an exemplary embodiment.

[0049] FIG4 is a block diagram of a vehicle according to an exemplary embodiment. DETAILED DESCRIPTION

[0050] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0051] It should be understood that the various steps described in the method embodiments of the present disclosure may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present disclosure is not limited in this respect.

[0052] As used herein, the term "including" and its variations are open-ended, i.e., "including but not limited to." The term "according to" means "according, at least in part, to." The term "one embodiment" means "at least one embodiment," the term "another embodiment" means "at least one additional embodiment," and the term "some embodiments" means "at least some embodiments." Other terms are defined in the following description.

[0053] During long-term research, the applicant discovered that in related technologies, the vehicle cooling system mostly uses normally-open valves. After the cooling system plan and component selection are determined, the cooling flow distribution status of the corresponding cooling branches is basically fixed. During the control process, the cooling flow through each cooling branch is adjusted by changing the speed of the electronic water pump to meet the heat dissipation requirements of different electric drive subsystem components in each cooling branch.

[0054] However, due to the drastic changes in load during driving, the heat dissipation requirements of different cooling branches vary with time. For example, for four-wheel drive models, the power distribution and heat dissipation requirements of the front and rear motors vary with time. During the control process, the heat dissipation requirements of all electric drive subsystem components need to be met. Under the premise of fixed flow distribution, it is inevitable that some cooling branches will have excess cooling capacity, thereby increasing energy consumption.

[0055] In view of this, the embodiments of the present disclosure provide a vehicle control method, a storage medium, an electronic device and a vehicle, which are connected to each cooling branch through a flow distribution device. Thus, after determining the first required heat dissipation of each cooling branch, the flow distribution ratio of each cooling branch can be further determined according to the first required heat dissipation of each cooling branch. Then, the flow distribution device can be controlled according to the flow distribution ratio to distribute a corresponding amount of coolant to different cooling branches. Compared with the fixed ratio flow distribution control of each cooling branch, the flow distribution adjustment based on the heat dissipation demand of the cooling branch can reduce the average power of the thermal management accessories, thereby reducing the energy consumption of the entire vehicle.

[0056] Before describing in detail the vehicle control method of the embodiment of the present disclosure, a cooling system of a vehicle provided by the embodiment of the present disclosure will be described in conjunction with the structural schematic diagram of the vehicle cooling system shown in FIG1 . As shown in FIG1 , the cooling system includes a flow distribution device 11, a plurality of cooling branches 12 connected to the flow distribution device 11 (two cooling branches are taken as an example in FIG1 ), each cooling branch 12 flows through one or more devices to be cooled 13 (the device to be cooled 13 can be a front-wheel drive assembly of a vehicle, a rear-wheel drive assembly of a vehicle, a power generation assembly, etc.), the cooling system also includes a water pump 14, a radiator 15, and a fan (not shown in the figure), wherein the fan is used to fan the heat of the radiator 15. In the cooling system, the water pump 14, the radiator 15, the flow distribution device 11, and each cooling branch 12 constitute a cooling circuit.

[0057] The flow distribution device 11 can be implemented using one or more proportional valves, depending on the number of cooling branches 12. For example, if there are two cooling branches, the flow distribution device 11 can be a three-way proportional valve. For another example, if there are three cooling branches, the flow distribution device 11 can be implemented using two three-way proportional valves, or a four-way proportional valve.

[0058] It should be noted that Figure 1 is only an exemplary structural diagram. In actual applications, the cooling system may include more or fewer components than those in Figure 1 as needed. For example, the cooling branch 12 may also be provided with a plate heat exchanger corresponding to the device to be cooled 13, a boost circuit element, etc.

[0059] FIG2 is a flow chart of a vehicle control method according to an exemplary embodiment, wherein the vehicle includes a cooling system, the cooling system includes a flow distribution device and at least two cooling branches, and the flow distribution device is connected to each cooling branch respectively. The vehicle control method can be applied to an on-board controller. As shown in FIG2 , the vehicle control method includes:

[0060] Step S201: confirming a first required heat dissipation capacity of each cooling branch.

[0061] In step S202 , the flow distribution device is controlled according to the flow distribution ratio to distribute corresponding amounts of coolant to different cooling branches, wherein the flow distribution ratio is determined according to the first required heat dissipation amount.

[0062] In some embodiments, the correlation between the pre-saved first required heat dissipation of the cooling branch and the flow distribution ratio of the cooling branch can be obtained. Then, after determining the first required heat dissipation of each cooling branch, the flow distribution ratio of each cooling branch can be determined based on the correlation.

[0063] Furthermore, after the flow distribution ratio is determined, the flow distribution device can be controlled according to the flow distribution ratio. That is, in the embodiment of the present disclosure, the process of controlling the vehicle may include the process of controlling the flow distribution device in the vehicle.

[0064] In some embodiments, the vehicle's cooling system may be modeled, and the flow distribution ratio of each cooling branch when the first required heat dissipation of different cooling branches is obtained through modeling analysis, that is, the above-mentioned correlation relationship is obtained through modeling analysis.

[0065] Using this method, a flow distribution device is connected to each cooling branch. After determining the first required heat dissipation capacity of each cooling branch, the flow distribution ratio for each cooling branch can be further determined based on the first required heat dissipation capacity. The flow distribution device can then be controlled based on the flow distribution ratio to distribute corresponding amounts of coolant to different cooling branches. Compared to fixed-ratio flow distribution control for each cooling branch, adjusting flow distribution based on the cooling branch's heat dissipation requirements enables precise flow control for different cooling branches, avoiding cooling redundancy in cooling branches, reducing the average power of the cooling accessories, and thus lowering overall vehicle energy consumption.

[0066] In combination with the foregoing, it can be seen that in some embodiments, the cooling system further includes: a water pump, a radiator, and a fan, the fan being used to heat the radiator, and the water pump, the radiator, the flow distribution device, and each cooling branch forming a cooling circuit; in this case, the method of the embodiment of the present disclosure further includes the following steps:

[0067] Determine water pump control parameter information and fan control parameter information;

[0068] The water pump is controlled according to the water pump control parameter information, and the fan is controlled according to the fan control parameter information, so that the heat dissipation of the radiator exceeds the sum of the first required heat dissipation amounts.

[0069] In the embodiment of the present disclosure, in order to meet the heat dissipation demand in the cooling circuit, the vehicle control process may further include a process of controlling a water pump and a fan in the vehicle.

[0070] In the disclosed embodiment, water pump control parameter information and fan control parameter information can be first determined, and the water pump can be controlled based on the water pump control parameter information, and the fan can be controlled based on the fan control parameter information. When the water pump operates according to the water pump control parameter information and the fan operates according to the fan control parameter information, the heat dissipation of the radiator exceeds the sum of the first required heat dissipation of each cooling branch, so that the heat dissipation provided by the radiator can meet the heat dissipation requirements of each cooling branch.

[0071] In some implementations, the method of the embodiment of the present disclosure may further include the following steps:

[0072] identifying a target operating parameter combination from at least two operating parameter combinations;

[0073] Among them, each working parameter combination includes water pump control parameter information and fan control parameter information, at least one working parameter combination corresponds to a heat dissipation threshold, and the target working parameter combination is: corresponding to the minimum value of the heat dissipation threshold that exceeds the sum of the first required heat dissipation.

[0074] In the embodiment of the present disclosure, in order to increase the speed of determining the water pump control parameter information and the fan control parameter information, some working parameter combinations can be pre-configured, and then the target working parameter combination can be confirmed from at least two working parameter combinations according to actual needs.

[0075] In the disclosed embodiment, in order to meet the cooling system's heat dissipation requirements while reducing heat dissipation waste, a candidate operating parameter combination whose corresponding heat dissipation threshold exceeds the sum of the first required heat dissipation of each cooling branch can be first determined from at least two operating parameter combinations. Then, the operating parameter combination with the lowest corresponding heat dissipation threshold can be selected from the candidate operating parameter combinations to determine the target operating parameter combination. The heat dissipation threshold corresponding to a particular operating parameter combination can be understood as the heat dissipation provided by the water pump and fan when operating according to the control parameter information in that operating parameter combination.

[0076] In some implementations, the operating parameter combination may include a combination of a water pump speed and a fan speed.

[0077] It is understandable that the greater the water pump speed and the fan speed, the greater the heat exchange provided by the radiator, and the greater the heat exchange amount is than the sum of the first required heat dissipation of each cooling branch, the better the heat dissipation effect. However, considering the speed limit, the water pump speed and the fan speed cannot be set to infinity. Therefore, in some embodiments, multiple operating parameter combinations can be pre-configured according to the hardware characteristics of the water pump and the fan (such as speed range and other characteristics). Optionally, the pre-configured multiple operating parameter combinations can be free combinations of the speeds of the water pump and the fan within their respective speed ranges.

[0078] In some implementations, the method of the embodiment of the present disclosure may further include the following steps:

[0079] When there are at least two target operating parameter combinations, an optimal operating parameter combination is determined, wherein each operating parameter combination corresponds to a first power loss, and the optimal operating parameter combination corresponds to the minimum value of the at least two first power losses.

[0080] In an embodiment of the present disclosure, when there are at least two target operating parameter combinations, in order to further reduce energy consumption, the target operating parameter combination with the smallest first power loss can be determined from the various target operating parameter combinations based on the first power losses corresponding to each target operating parameter combination, as the optimal operating parameter combination.

[0081] The first power loss corresponding to a certain target operating parameter combination can be understood as the sum of the powers corresponding to the water pump and the fan when they operate according to the control parameter information in the target operating combination.

[0082] In some embodiments, each cooling branch is provided with at least one device to be cooled; and determining the first required heat dissipation of each cooling branch includes:

[0083] Determine the second required heat dissipation of each device to be cooled;

[0084] A first required heat dissipation amount is determined, wherein the first required heat dissipation amount is the sum of the second required heat dissipation amounts in the same cooling branch.

[0085] The second required heat dissipation of the device to be cooled may be understood as the amount of heat that needs to be dissipated to reduce the device to be cooled to a safe operating temperature.

[0086] In some embodiments, the device to be cooled may include a drive assembly and a power generation assembly, and the drive assembly includes a front drive assembly and a rear drive assembly.

[0087] Combined with the above content, it can be seen that each cooling branch is provided with at least one device to be cooled. Therefore, after determining the second required heat dissipation of each device to be cooled, the first required heat dissipation of each cooling branch can be determined according to the situation of the device to be cooled set in each cooling branch.

[0088] For example, assuming that the vehicle's cooling system includes two cooling branches, the devices to be cooled include a front-wheel drive assembly, a rear-wheel drive assembly, and a power generation assembly, and assuming that the first cooling branch is provided with the front-wheel drive assembly and the power generation assembly, and the second cooling branch is provided with the rear-wheel drive assembly, in this case, the first required heat dissipation of the first cooling branch can be determined based on the second required heat dissipation of the front-wheel drive assembly and the second required heat dissipation of the power generation assembly, and the first required heat dissipation of the second cooling branch can be determined based on the second required heat dissipation of the rear-wheel drive assembly. For example, the sum of the second required heat dissipation of the front-wheel drive assembly and the second required heat dissipation of the power generation assembly is determined as the first required heat dissipation of the first cooling branch, and the second required heat dissipation of the rear-wheel drive assembly is determined as the first required heat dissipation of the second cooling branch.

[0089] In some embodiments, determining the second required heat dissipation of each device to be cooled may include the following steps:

[0090] Driving parameter information of the vehicle is obtained, and a second required heat dissipation amount of each device to be cooled is determined according to the driving parameter information.

[0091] In the disclosed embodiment, vehicle-borne message signal data can be collected to obtain vehicle driving parameter information through the vehicle-borne message signal data. After obtaining the vehicle driving parameter information, the second required heat dissipation of each device to be cooled can be determined based on the vehicle driving parameter information.

[0092] For example, vehicle-borne message signal data can be used to collect operating parameters such as vehicle speed, throttle depth, slope, battery temperature, SOC (state of charge), ambient temperature, electronically controlled water channel temperature, and the power requirements of pre-set electrical devices. Pre-set electrical devices can optionally include additional electrical devices such as air conditioners and lights.

[0093] In some embodiments, determining the second required heat dissipation of each device to be cooled based on the driving parameter information may include the following steps:

[0094] Determine the power requirement of each device to be cooled based on driving parameter information;

[0095] According to the required power of each device to be cooled, a second required heat dissipation amount of each device to be cooled is determined.

[0096] In the disclosed embodiment, the power requirements of each device to be cooled can be determined based on the vehicle's driving parameter information. Then, the second required heat dissipation capacity of each device to be cooled can be determined based on the power requirements of each device to be cooled. It should be noted that the process of determining the second required heat dissipation capacity based on the power requirements can be referenced in the relevant prior art and will not be further described here.

[0097] In the embodiment of the present disclosure, for the device to be cooled, the driving parameter information used to determine the second required power is different.

[0098] In some embodiments, when the device to be cooled includes a drive assembly, the second required power of the drive assembly can be calculated based on driving parameter information such as vehicle speed, throttle depth, and slope. The process of calculating the second required power of the drive assembly based on driving parameter information such as vehicle speed, throttle depth, and slope can be referenced in related prior art and will not be further described here. Optionally, the drive assembly can include a front-wheel drive assembly or a rear-wheel drive assembly.

[0099] In some embodiments, when the device to be cooled includes a power generation assembly, the second power requirement of the power generation assembly can be calculated based on driving parameter information such as battery temperature, SOC, and the power requirements of predetermined electrical devices. The process of calculating the second power requirement of the power generation assembly based on driving parameter information such as battery temperature, SOC, and the power requirements of predetermined electrical devices can be referenced in related prior art and will not be further described here.

[0100] In some embodiments, the at least two cooling branches include a first cooling branch and a second cooling branch. The device to be cooled provided in the first cooling branch includes: a first drive assembly, and the device to be cooled provided in the second cooling branch includes: a second drive assembly. In this case, determining the required power of each device to be cooled based on driving parameter information includes:

[0101] When the driving parameter information represents four-wheel drive, a first power demand and a second power demand are confirmed, wherein the first power demand and the second power demand are confirmed based on the total driving power demand and at least one preset distribution ratio, the first power demand corresponds to the first drive assembly, and the second power demand corresponds to the second drive assembly, and the total driving power demand is determined based on the driving parameter information.

[0102] In the disclosed embodiments, a total driving power requirement can be determined based on driving parameter information. The total driving power requirement can be understood as the total power required to drive the vehicle. When the driving parameter information indicates four-wheel drive, the total driving power requirement can be provided by the first drive assembly and the second drive assembly. In this case, a first power requirement corresponding to the first drive assembly and a second power requirement corresponding to the second drive assembly can be determined based on the total driving power requirement and a preset distribution ratio. In some embodiments, the first power requirement can be determined as the required power of the first drive assembly, and the second power requirement can be determined as the required power of the second drive assembly.

[0103] In addition, considering that the working efficiency of the drive assembly will cause power loss, in some embodiments, after obtaining the first power demand and the second power demand, the required power of the first drive assembly can be determined based on the first power demand and the working efficiency of the first drive assembly, and the required power of the second drive assembly can be determined based on the second power demand and the working efficiency of the second drive assembly.

[0104] In some embodiments, the device to be cooled in the first cooling branch or the second cooling branch further includes: a power generation assembly; and determining the required power of each device to be cooled based on driving parameter information, including:

[0105] When the driving parameter information characterizes four-wheel drive and has power generation demand, the power generation power demand, the first power demand and the second power demand are confirmed, wherein the first power demand and the second power demand are confirmed based on the total driving power demand and at least one preset distribution ratio, the first power demand corresponds to the first driving assembly, the second power demand corresponds to the second driving assembly, the power generation power demand corresponds to the power generation assembly, and the total driving power demand and the power generation power demand are determined based on the driving parameter information.

[0106] In the disclosed embodiment, the power generation assembly can be set in the first cooling branch or the second cooling branch. In this case, when the driving parameter information represents four-wheel drive and there is a power generation demand, the power generation power demand, the first power demand and the second power demand can be confirmed.

[0107] The process of confirming the first power requirement and the second power requirement may refer to the aforementioned embodiment and will not be described in detail here.

[0108] In the disclosed embodiment, the power generation demand may be determined based on the driving parameter information.

[0109] In some embodiments, considering that the working efficiency of the power generation assembly will cause power loss, in some embodiments, after obtaining the power generation power demand, the required power of the power generation assembly can be determined based on the power generation power demand and the working efficiency of the power generation assembly.

[0110] In some embodiments, the at least two cooling branches further include a third cooling branch, and the device to be cooled provided in the third cooling branch is: a power generation assembly; determining the required power of each device to be cooled based on the driving parameter information includes:

[0111] When the driving parameter information indicates four-wheel drive and has a power generation demand, the power generation demand, the first power demand and the second power demand are confirmed, wherein the first power demand and the second power demand are confirmed according to the total driving demand and at least one preset distribution ratio, the first power demand corresponds to the first driving assembly, the second power demand corresponds to the second driving assembly, the power generation demand corresponds to the power generation assembly, and the total driving power demand and the power generation demand are determined according to the driving parameter information

[0112] In the disclosed embodiment, the power generation assembly can also be set in a third cooling branch that is different from the first cooling branch and the second cooling branch. In this case, when the driving parameter information represents four-wheel drive and there is a power generation demand, the power generation power demand, the first power demand and the second power demand can be confirmed.

[0113] The process of confirming the generated power, the first power requirement and the second power requirement may refer to the aforementioned embodiment and will not be described in detail here.

[0114] In some embodiments, the at least two cooling branches include a first cooling branch and a second cooling branch. The devices to be cooled provided in the first cooling branch are: a first drive assembly and a second drive assembly, and the devices to be cooled provided in the second cooling branch are: a power generation assembly. Determining the required power of each device to be cooled based on driving parameter information includes:

[0115] When the driving parameter information characterizes four-wheel drive and has power generation demand, the power generation power demand, the third power demand and the fourth power demand are confirmed, wherein the third power demand and the fourth power demand are confirmed based on the total driving power demand and at least one preset distribution ratio, the third power demand corresponds to the first driving assembly, the fourth power demand corresponds to the second driving assembly, the power generation power demand corresponds to the power generation assembly, and the total driving power demand and the power generation power demand are determined based on the driving parameter information.

[0116] In the embodiment of the present disclosure, the first drive assembly and the second drive assembly may be arranged in the first cooling branch, and the power generation assembly may be arranged in the second cooling branch.

[0117] In the disclosed embodiments, the total driving power demand and the power generation demand can be determined based on the driving parameter information. The total driving power demand can be understood as the total power required to drive the vehicle. When the driving parameter information indicates four-wheel drive, the total driving power demand can be provided by the first drive assembly and the second drive assembly. In this case, based on the total driving power demand and a preset distribution ratio, a third power demand corresponding to the first drive assembly and a fourth power demand corresponding to the second drive assembly can be determined. In some embodiments, the third power demand can be determined as the required power of the first drive assembly, the fourth power demand can be determined as the required power of the second drive assembly, and the power generation demand can be determined as the required power of the power generation assembly.

[0118] In addition, considering that the working efficiency of the drive assembly and the power generation assembly will cause power loss, in some embodiments, after obtaining the power generation power demand, the third power demand and the fourth power demand, the required power of the first drive assembly can be determined based on the third power demand and the working efficiency of the first drive assembly, the required power of the second drive assembly can be determined based on the fourth power demand and the working efficiency of the second drive assembly, and the required power of the power generation assembly can be determined based on the power generation power demand and the working efficiency of the power generation assembly.

[0119] It should be noted that the first drive assembly in the aforementioned embodiment can be either a front drive assembly or a rear drive assembly, and the second drive assembly is the other of the front drive assembly or the rear drive assembly that is different from the first drive assembly. For example, when the first drive assembly is the front drive assembly, the second drive assembly is the rear drive assembly.

[0120] It is understandable that, under normal circumstances, there may be one or more power distribution ratios, so that the first drive assembly and the second drive assembly output different powers to meet the vehicle drive requirements. Therefore, in order to meet the power requirements of the first drive assembly and the second drive assembly while meeting different actual needs, such as energy saving needs, the first drive assembly or the second drive assembly being the main power output requirement, etc., multiple power distribution ratios can be preset.

[0121] In the case where there is at least one preset allocation ratio, the method of the embodiment of the present disclosure may further include the following steps:

[0122] A target allocation ratio is determined from at least one preset allocation ratio, wherein each preset allocation ratio corresponds to a vehicle power loss, and the target allocation ratio corresponds to a minimum value of the vehicle power loss.

[0123] In the embodiment of the present disclosure, in order to further reduce vehicle energy consumption, the vehicle power loss corresponding to each preset allocation ratio can be obtained, and then the preset allocation ratio corresponding to the minimum vehicle power loss is selected as the target allocation ratio.

[0124] In the embodiment of the present disclosure, the power loss of the entire vehicle may be determined based on one or more of the power requirements of each device to be cooled, the power loss of the water pump, and the power loss of the fan.

[0125] In some embodiments, the at least two cooling branches include a first cooling branch and a second cooling branch, the device to be cooled provided in the first cooling branch is: a third drive assembly, and the device to be cooled provided in the second cooling branch is: a power generation assembly; determining the required power of each device to be cooled based on driving parameter information includes:

[0126] When the driving parameter information represents two-wheel drive and has a power generation demand, the power generation power demand and the fifth power demand are confirmed, wherein the fifth power demand corresponds to the third drive assembly, the power generation power demand corresponds to the power generation assembly, and the power generation power demand is determined based on the driving parameter information.

[0127] In the disclosed embodiment, when the vehicle is in two-wheel drive mode, the power required to drive the vehicle is provided by the third drive assembly. At this time, the fifth power requirement corresponding to the third drive assembly and the power generation requirement corresponding to the power generation assembly can be determined based on the driving parameter information.

[0128] It should be noted that the third drive assembly in the aforementioned embodiment can be either a front drive assembly or a rear drive assembly.

[0129] The vehicle control method of the present disclosure is described in detail below using a vehicle including a front-wheel drive assembly, a rear-wheel drive assembly, and a power generation assembly as an example, in conjunction with the flowchart shown in FIG3 , as a complete embodiment, as shown in FIG3 :

[0130] Step S301: Collect vehicle-borne message signal data to obtain vehicle driving parameter information.

[0131] In the disclosed embodiment, driving parameter information such as vehicle speed, throttle depth, slope, battery temperature, SOC (state of charge), ambient temperature, electronically controlled water channel temperature, and required power of preset electrical equipment can be collected through vehicle-borne message signal data.

[0132] Step S302: Acquire pre-configured operating parameter combinations and power allocation ratios.

[0133] Step S303: determining the total driving power requirement and the power generation power requirement according to the driving parameter information of the vehicle.

[0134] Step S304 : determining a first required power of the front drive assembly and a second required power of the rear drive assembly corresponding to the candidate power distribution ratio according to the total driving power requirement and the candidate power distribution ratio.

[0135] In the embodiment of the present disclosure, the candidate power allocation ratio is any one of the pre-configured power allocation ratios. In the embodiment of the present disclosure, one candidate power allocation ratio is used in sequence, and steps S304 to S312 are performed.

[0136] Step S305 : determining the required power of the front drive assembly based on the first power requirement and the working efficiency of the front drive assembly, and determining the required power of the rear drive assembly based on the power requirement of the rear drive assembly and the working efficiency of the rear drive assembly.

[0137] Step S306: Determine the second required heat dissipation of the front drive assembly based on the required power of the front drive assembly, determine the second required heat dissipation of the rear drive assembly based on the required power of the rear drive assembly, and determine the second required heat dissipation of the power generation assembly based on the required power of the power generation assembly.

[0138] Step S307 : determining the first required heat dissipation of each cooling branch according to the second required heat dissipation of each device to be cooled.

[0139] Step S308 : determining the flow distribution ratio of each cooling branch according to the first required heat dissipation of each cooling branch.

[0140] Step S309 : determining an intermediate operating parameter combination from each operating parameter combination according to the heat exchange amount corresponding to each operating parameter combination and the sum of the first required heat dissipation amounts of each cooling branch.

[0141] In the embodiment of the present disclosure, the heat exchange amount corresponding to the intermediate operating parameter combination satisfies the sum of the first required heat dissipation amounts of each cooling branch.

[0142] In the embodiment of the present disclosure, one working parameter combination is used in sequence, and steps S309 - S310 are performed.

[0143] Step S310: Obtain first power losses corresponding to respective intermediate operating parameter combinations.

[0144] Step S311 : From among the various intermediate operating parameter combinations, determine the intermediate operating parameter combination with the smallest corresponding sum of first power losses as the target operating parameter combination.

[0145] Step S312: Obtain the vehicle power loss corresponding to each power allocation ratio.

[0146] Step S313 : From the various power allocation ratios, determine the power allocation ratio with the minimum power loss of the entire vehicle as the target power allocation strategy.

[0147] In the embodiment of the present disclosure, the power loss of the whole vehicle corresponding to a power distribution strategy is based on the first power demand of the front drive assembly, the second power demand of the rear drive assembly, the power generation power demand of the power generation assembly, and the sum of the first power losses corresponding to the water pump and the fan when they operate under the target operating parameter combination when the front drive assembly and the rear drive assembly operate at this power distribution ratio.

[0148] Step S314: Control the vehicle according to the flow distribution ratio, the target operating parameter combination, and the target power distribution ratio.

[0149] In the embodiment of the present disclosure, the flow distribution ratio is used to control the flow distribution device in the vehicle, the target operating parameter combination is used to control the water pump and fan in the vehicle, and the target power distribution ratio is used to control the front drive assembly and rear drive assembly in the vehicle.

[0150] By adopting the method of the embodiment of the present disclosure, on the one hand, by adding a flow distribution device to the cooling system, refined cooling flow distribution control based on the actual heat dissipation requirements of different cooling branches can be achieved, thereby reducing the average power of the thermal management accessories and thus reducing the energy consumption of the entire vehicle; on the other hand, under the premise of ensuring driving power requirements and basic heat dissipation requirements, based on semi-closed-loop control, a multi-level global optimization method is adopted to seek a control parameter combination that minimizes the power loss of the entire vehicle among multiple power distribution ratios and multiple working parameter combinations, which can minimize the average energy loss of the electric drive subsystem and the thermal management system, realize global optimization of the control parameters with optimal energy consumption of the thermal management system, and further reduce the energy consumption of the entire vehicle.

[0151] FIG4 is a block diagram of a vehicle 400 according to an exemplary embodiment. For example, the vehicle 400 may be a hybrid vehicle, an electric vehicle, etc. Furthermore, the vehicle 400 may be an autonomous vehicle, a semi-autonomous vehicle, or a non-autonomous vehicle.

[0152] Referring to FIG4 , vehicle 400 may include various subsystems, such as an infotainment system 410, a perception system 420, a decision-making and control system 430, a drive system 440, and an onboard computing platform 450. Vehicle 400 may also include more or fewer subsystems, and each subsystem may include multiple components. Furthermore, each subsystem and each component of vehicle 400 may be interconnected via wired or wireless means.

[0153] In some embodiments, the infotainment system 410 may include a communication system, an entertainment system, a navigation system, and the like.

[0154] The perception system 420 may include several sensors for sensing information about the environment surrounding the vehicle 400. For example, the perception system 420 may include a global positioning system (which may be a GPS system, a BeiDou system, or another positioning system), an inertial measurement unit (IMU), a laser radar, a millimeter-wave radar, an ultrasonic radar, and a camera.

[0155] The decision control system 430 may include a computing system, a domain controller, a vehicle controller, an energy scheduler, a steering system, a throttle and a braking system, wherein the energy scheduler is used to execute all or part of the steps of the above-mentioned vehicle control method.

[0156] Drive system 440 may include components that provide power to vehicle 400. In one embodiment, drive system 440 may include an engine, a power source, a transmission system, and wheels. The engine may be an internal combustion engine, an electric motor, an air compression engine, or a combination thereof. The engine is capable of converting energy provided by the power source into mechanical energy.

[0157] Some or all functions of the vehicle 400 are controlled by an onboard computing platform 450. The onboard computing platform 450 may include at least one processor 451 and a memory 452. The processor 451 may execute instructions 453 stored in the memory 452.

[0158] The processor 451 may be any conventional processor, such as a commercially available CPU. The processor may also include a graphics processing unit (GPU), a field programmable gate array (FPGA), a system on chip (SOC), an application specific integrated circuit (ASIC), or a combination thereof.

[0159] The memory 452 may be implemented by any type of volatile or non-volatile memory device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0160] In addition to the instructions 453 , the memory 452 may also store data, such as road maps, route information, and the vehicle's location, direction, speed, etc. The data stored in the memory 452 may be used by the onboard computing platform 450 .

[0161] In another exemplary embodiment, a non-transitory computer-readable storage medium including a computer program is further provided. When the computer program is executed by a processor, the steps of the above-mentioned vehicle control method are implemented.

[0162] In another exemplary embodiment, an electronic device is provided, including:

[0163] a non-volatile memory for storing computer programs executable by the processor;

[0164] The processor is used to execute the computer program to implement the steps of the above vehicle control method.

[0165] In another exemplary embodiment, a vehicle is provided, comprising the above-mentioned electronic device.

[0166] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0167] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0168] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A vehicle control method, characterized in that: The vehicle comprises a cooling system, the cooling system comprising a flow distribution device (11) and at least two cooling branches (12), the flow distribution device being connected to each cooling branch respectively; the method comprising: Determine a first required heat dissipation capacity of each cooling branch (S201); The flow distribution device is controlled according to a flow distribution ratio to distribute corresponding amounts of coolant to different cooling branches, wherein the flow distribution ratio is determined according to the first required heat dissipation (S202).

2. The method according to claim 1, characterized in that The cooling system further comprises: a water pump (14), a radiator (15) and a fan, wherein the fan is used to heat the radiator, and the water pump, the radiator, the flow distribution device, and each cooling branch constitute a cooling circuit; the method further comprises: Determine water pump control parameter information and fan control parameter information; The water pump is controlled according to the water pump control parameter information, and the fan is controlled according to the fan control parameter information, so that the heat dissipation of the radiator exceeds the sum of the first required heat dissipations.

3. The method according to any one of claims 1 to 2, characterized in that The method further comprises: identifying a target operating parameter combination from at least two operating parameter combinations; Among them, each working parameter combination includes water pump control parameter information and fan control parameter information, at least one working parameter combination corresponds to a heat dissipation threshold, and the target working parameter combination is: corresponding to the minimum value of the heat dissipation threshold that exceeds the sum of the first required heat dissipation.

4. The method according to claim 3, characterized in that The method further comprises: When there are at least two target operating parameter combinations, an optimal operating parameter combination is determined, wherein each operating parameter combination corresponds to a first power loss, and the optimal operating parameter combination corresponds to the minimum value of the at least two first power losses.

5. The method according to any one of claims 1 to 4, characterized in that Each cooling branch is provided with at least one device to be cooled (13); the determining of the first required heat dissipation of each cooling branch comprises: Determine the second required heat dissipation of each device to be cooled; Determine the first required heat dissipation, wherein the first required heat dissipation is: The sum of the second required heat dissipation.

6. The method according to claim 5, characterized in that The determining of the second required heat dissipation of each device to be cooled includes: Driving parameter information of the vehicle is acquired, and the second required heat dissipation of each device to be cooled is determined according to the driving parameter information.

7. The method according to claim 6, characterized in that The determining the second required heat dissipation of each device to be cooled according to the driving parameter information includes: determining the required power of each device to be cooled according to the driving parameter information; According to the required power of each device to be cooled, a second required heat dissipation amount of each device to be cooled is determined.

8. The method according to claim 7, characterized in that The at least two cooling branches include a first cooling branch and a second cooling branch, the device to be cooled provided in the first cooling branch includes: a first drive assembly, and the device to be cooled provided in the second cooling branch includes: a second drive assembly; determining the required power of each device to be cooled based on the driving parameter information includes: When the driving parameter information represents four-wheel drive, a first power requirement and a second power requirement are confirmed, wherein the first power requirement and the second power requirement are confirmed based on the total driving power requirement and at least one preset distribution ratio, the first power requirement corresponds to the first drive assembly, the second power requirement corresponds to the second drive assembly, and the total driving power requirement is determined based on the driving parameter information.

9. The method according to claim 7, characterized in that The at least two cooling branches include a first cooling branch and a second cooling branch, the device to be cooled provided in the first cooling branch is: a first drive assembly and a second drive assembly, and the device to be cooled provided in the second cooling branch is: a power generation assembly; The step of determining the required power of each device to be cooled according to the driving parameter information includes: When the driving parameter information characterizes four-wheel drive and has power generation demand, the power generation power demand, the third power demand and the fourth power demand are confirmed, wherein the third power demand and the fourth power demand are confirmed based on the total driving power demand and at least one preset distribution ratio, the third power demand corresponds to the first drive assembly, the fourth power demand corresponds to the second drive assembly, the power generation power demand corresponds to the power generation assembly, and the total driving power demand and the power generation power demand are determined based on the driving parameter information.

10. The method according to claim 8, characterized in that The at least two cooling branches further include a third cooling branch, wherein the device to be cooled provided in the third cooling branch is a power generation assembly; and determining the required power of each device to be cooled based on the driving parameter information includes: When the driving parameter information characterizes four-wheel drive and has power generation demand, the power generation power demand, the first power demand and the second power demand are confirmed, wherein the first power demand and the second power demand are confirmed based on the total driving demand and at least one preset distribution ratio, the first power demand corresponds to the first drive assembly, the second power demand corresponds to the second drive assembly, the power generation power demand corresponds to the power generation assembly, and the total driving power demand and the power generation power demand are determined based on the driving parameter information.

11. The method according to claim 8, characterized in that The device to be cooled in the first cooling branch or the second cooling branch further includes: a power generation assembly; and determining the required power of each device to be cooled based on the driving parameter information includes: When the driving parameter information characterizes four-wheel drive and has power generation demand, the power generation power demand, the first power demand and the second power demand are confirmed, wherein the first power demand and the second power demand are confirmed based on the total driving power demand and at least one preset distribution ratio, the first power demand corresponds to the first driving assembly, the second power demand corresponds to the second driving assembly, the power generation power demand corresponds to the power generation assembly, and the total driving power demand and the power generation power demand are determined based on the driving parameter information.

12. The method according to any one of claims 8 to 11, characterized in that The method further comprises: A target allocation ratio is determined from the at least one preset allocation ratio, wherein each preset allocation ratio corresponds to a whole vehicle power loss, and the target allocation ratio corresponds to a minimum value of the whole vehicle power loss.

13. The method according to claim 7, characterized in that The at least two cooling branches include a first cooling branch and a second cooling branch, the device to be cooled provided in the first cooling branch is: a third drive assembly, and the device to be cooled provided in the second cooling branch is: a power generation assembly; The step of determining the required power of each device to be cooled according to the driving parameter information includes: When the driving parameter information indicates two-wheel drive and has power generation demand, the power generation power demand and the fifth power demand are confirmed, wherein the fifth power demand corresponds to the third drive assembly, the power generation power demand corresponds to the power generation assembly, and the fifth power demand and the power generation power demand are determined based on the driving parameter information. Determined.

14. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the vehicle control method according to any one of claims 1 to 13 are implemented.

15. An electronic device, characterized in that: include: a non-volatile memory for storing computer programs executable by the processor; A processor is used to execute a computer program to implement the steps of the vehicle control method according to any one of claims 1 to 13.

16. A vehicle, characterized in that: The electronic device comprising claim 15.

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