Whole vehicle power consumption coordination management method, whole vehicle controller and new energy automobile

Abstract

The application relates to the field of new energy vehicles, and provides a whole vehicle power consumption coordination management method, a whole vehicle controller and a new energy vehicle. The method is applied to the whole vehicle controller, the whole vehicle controller is in communication connection with a power domain system, a chassis domain system and a vehicle body domain system, and comprises the following steps: acquiring power domain power consumption data sets reported by a power domain total controller in the power domain system, chassis domain power consumption data sets reported by a chassis domain total controller in the chassis domain system, and vehicle body domain power consumption data sets reported by a vehicle body domain total controller in the vehicle body domain system; based on the power domain power consumption data sets, the chassis domain power consumption data sets and the vehicle body domain power consumption data sets, determining an intra-domain power consumption coordination management strategy and an inter-domain power consumption coordination management strategy, and performing whole vehicle power consumption coordination management. The application can realize unified whole vehicle power consumption coordination management, thereby reducing whole vehicle power consumption, prolonging whole vehicle endurance and battery life.

Description

Technical Field

[0001] This application relates to the field of new energy vehicles, and in particular to a method for coordinated management of vehicle power consumption, a vehicle controller, and a new energy vehicle. Background Technology

[0002] With the development of vehicle electrification and intelligence, the number of controllers has increased significantly, and the static and dynamic power consumption of the whole vehicle has increased significantly, especially in electric vehicles and plug-in hybrid vehicles, where the impact on the vehicle's range and battery life is particularly prominent.

[0003] In related technologies, each controller operates independently and adjusts power consumption according to its own local power consumption adjustment strategy. The lack of unified vehicle power consumption coordination management results in relatively high vehicle power consumption, which affects the vehicle's range and battery life.

[0004] Therefore, existing technologies need further improvement. Summary of the Invention

[0005] In view of this, embodiments of this application provide a vehicle power consumption coordination management method, a vehicle controller, and a new energy vehicle to solve the problem that the lack of unified vehicle power consumption coordination management in the prior art results in still large vehicle power consumption, affecting vehicle range and battery life.

[0006] A first aspect of this application provides a vehicle power consumption coordination management method, applied to a vehicle controller, wherein the vehicle controller is communicatively connected to a power domain system, a chassis domain system, and a body domain system; the power domain system includes a first power domain sub-controller, a second power domain sub-controller, and a third power domain sub-controller; the power domain power consumption dataset includes first power domain power consumption data corresponding to the first power domain sub-controller, second power domain power consumption data corresponding to the second power domain sub-controller, and third power domain power consumption data corresponding to the third power domain sub-controller; the method includes:

[0007] Obtain the power domain power consumption dataset reported by the power domain master controller in the power domain system, the chassis domain power consumption dataset reported by the chassis domain master controller in the chassis domain system, and the body domain power consumption dataset reported by the body domain master controller in the body domain system.

[0008] Based on the power consumption datasets of the power domain, chassis domain, and body domain, the power consumption coordination management strategies within and between domains are determined, and the power consumption coordination management of the whole vehicle is carried out.

[0009] The inter-domain power consumption coordination management strategy includes a first inter-domain power consumption coordination management strategy, a second inter-domain power consumption coordination management strategy, a third inter-domain power consumption coordination management strategy, and a fourth inter-domain power consumption coordination management strategy.

[0010] Based on the power consumption datasets in the powertrain domain, chassis domain, and body domain, an inter-domain power consumption coordination management strategy is determined, including:

[0011] Based on the power consumption dataset in the power domain and the power consumption dataset in the body domain, a first inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the power domain and the power consumption dataset in the chassis domain, a second inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the chassis domain and the power consumption dataset in the body domain, a third inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the body domain, a fourth inter-domain power consumption coordination management strategy is determined.

[0012] A second aspect of this application provides a vehicle controller, including:

[0013] The data acquisition module is configured to acquire the power domain power consumption dataset reported by the power domain master controller in the power domain system, the chassis domain power consumption dataset reported by the chassis domain master controller in the chassis domain system, and the body domain power consumption dataset reported by the body domain master controller in the body domain system.

[0014] The power management module is configured to determine the power coordination management strategy within the domain and the power coordination management strategy between the domains based on the power power dataset, chassis power dataset, and body power dataset, and to perform overall vehicle power coordination management.

[0015] The inter-domain power consumption coordination management strategy includes a first inter-domain power consumption coordination management strategy, a second inter-domain power consumption coordination management strategy, a third inter-domain power consumption coordination management strategy, and a fourth inter-domain power consumption coordination management strategy.

[0016] Based on the power consumption datasets in the powertrain domain, chassis domain, and body domain, an inter-domain power consumption coordination management strategy is determined, including:

[0017] Based on the power consumption dataset in the power domain and the power consumption dataset in the body domain, a first inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the power domain and the power consumption dataset in the chassis domain, a second inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the chassis domain and the power consumption dataset in the body domain, a third inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the body domain, a fourth inter-domain power consumption coordination management strategy is determined.

[0018] A third aspect of this application provides a new energy vehicle, which includes a vehicle controller, a power domain system, a chassis domain system, and a body domain system communicatively connected to the vehicle controller; the power domain system includes a power domain master controller and at least one power domain sub-controller, each power domain sub-controller being communicatively connected to the power domain master controller; the chassis domain system includes a chassis domain master controller and at least one chassis domain sub-controller, each chassis domain sub-controller being communicatively connected to the chassis domain master controller; the body domain system includes a body domain master controller and at least one body domain sub-controller, each body domain sub-controller being communicatively connected to the body domain master controller.

[0019] The vehicle controller is configured as follows:

[0020] Obtain the power domain power consumption dataset reported by the power domain master controller in the power domain system, the chassis domain power consumption dataset reported by the chassis domain master controller in the chassis domain system, and the body domain power consumption dataset reported by the body domain master controller in the body domain system.

[0021] Based on the power consumption datasets of the power domain, chassis domain, and body domain, the power consumption coordination management strategies within and between domains are determined, and the power consumption coordination management of the whole vehicle is carried out.

[0022] The inter-domain power consumption coordination management strategy includes a first inter-domain power consumption coordination management strategy, a second inter-domain power consumption coordination management strategy, a third inter-domain power consumption coordination management strategy, and a fourth inter-domain power consumption coordination management strategy.

[0023] Based on the power consumption datasets in the powertrain domain, chassis domain, and body domain, an inter-domain power consumption coordination management strategy is determined, including:

[0024] Based on the power consumption dataset in the power domain and the power consumption dataset in the body domain, a first inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the power domain and the power consumption dataset in the chassis domain, a second inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the chassis domain and the power consumption dataset in the body domain, a third inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the body domain, a fourth inter-domain power consumption coordination management strategy is determined.

[0025] Compared with the prior art, the beneficial effects of the embodiments of this application include at least the following: the technical solution provided by the embodiments of this application, based on the power consumption datasets of the power domain system, chassis domain system and body domain system, determines the power consumption coordination management strategy within the domain and the power consumption coordination management strategy between the domains, and performs vehicle power consumption coordination management, thereby achieving unified vehicle power consumption coordination management, thereby reducing vehicle power consumption and extending vehicle range and battery life. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of a vehicle power consumption coordination management architecture provided in an embodiment of this application;

[0028] Figure 2 This is a flowchart illustrating a vehicle power consumption coordination management method provided in an embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the system structure of a dynamic domain system provided in an embodiment of this application;

[0030] Figure 4 This is a schematic diagram of the system structure of a chassis domain system provided in an embodiment of this application;

[0031] Figure 5 This is a schematic diagram of the system structure of a vehicle body domain system provided in an embodiment of this application;

[0032] Figure 6 This is a schematic diagram of the structure of a vehicle controller provided in an embodiment of this application;

[0033] Figure 7 This is a schematic diagram of the structure of a new energy vehicle provided in an embodiment of this application;

[0034] Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0035] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0036] The following will describe in detail, with reference to the accompanying drawings, a vehicle power consumption coordination management method, a vehicle controller, and a new energy vehicle according to embodiments of this application.

[0037] Figure 1 This is a schematic diagram of a vehicle power consumption coordination management architecture provided in an embodiment of this application. Please refer to [link / reference]. Figure 1 The vehicle power consumption coordination management architecture includes a vehicle controller 101, a power domain system 102, a chassis domain system 103, and a body domain system 104. The power domain system 102 includes a power domain master controller 1021; the chassis domain system 103 includes a chassis domain master controller 1031; and the body domain system 104 includes a body domain master controller 1041. The power domain master controller 1021, chassis domain master controller 1031, and body domain master controller 1041 can establish communication connections with the vehicle controller 101 via a CAN bus, CAN FD bus, or Ethernet bus, and report power domain power consumption datasets (power domain, chassis domain, and body domain) to the vehicle controller 101 according to a preset reporting period (e.g., 100 milliseconds) and / or event triggering conditions, respectively. Then, the vehicle controller 101 determines the intra-domain power consumption coordination management strategy and the inter-domain power consumption coordination management strategy based on the acquired power domain, chassis domain, and body domain power consumption datasets, and performs vehicle power consumption coordination management.

[0038] Figure 2 This is a flowchart illustrating a vehicle power consumption coordination management method provided in an embodiment of this application. Figure 2 The whole vehicle power consumption coordination management method can be provided by Figure 1 The vehicle controller 101 performs the execution. For example... Figure 2 As shown, the vehicle power consumption coordination management method includes the following steps:

[0039] Step S201: Obtain the power domain power consumption dataset reported by the power domain master controller in the power domain system, the chassis domain power consumption dataset reported by the chassis domain master controller in the chassis domain system, and the body domain power consumption dataset reported by the body domain master controller in the body domain system; wherein, the power domain system includes a first power domain sub-controller, a second power domain sub-controller, and a third power domain sub-controller; the power domain power consumption dataset includes the first power domain power consumption data corresponding to the first power domain sub-controller, the second power domain power consumption data corresponding to the second power domain sub-controller, and the third power domain power consumption data corresponding to the third power domain sub-controller.

[0040] Step S202: Based on the power consumption dataset of the power domain, the power consumption dataset of the chassis domain, and the power consumption dataset of the body domain, determine the power consumption coordination management strategy within the domain and the power consumption coordination management strategy between the domains, and perform vehicle power consumption coordination management.

[0041] The inter-domain power consumption coordination management strategy includes a first inter-domain power consumption coordination management strategy, a second inter-domain power consumption coordination management strategy, a third inter-domain power consumption coordination management strategy, and a fourth inter-domain power consumption coordination management strategy. Based on the power domain power consumption dataset, chassis domain power consumption dataset, and body domain power consumption dataset, the inter-domain power consumption coordination management strategy is determined, including:

[0042] Based on the power consumption dataset in the power domain and the power consumption dataset in the body domain, a first inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the power domain and the power consumption dataset in the chassis domain, a second inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the chassis domain and the power consumption dataset in the body domain, a third inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the body domain, a fourth inter-domain power consumption coordination management strategy is determined.

[0043] The technical solution provided in this application, based on the power domain power consumption dataset, chassis domain power consumption dataset, and body domain power consumption dataset reported by the power domain system, chassis domain system, and body domain system, determines the intra-domain power consumption coordination management strategy and the inter-domain power consumption coordination management strategy, and performs whole-vehicle power consumption coordination management, thereby achieving unified whole-vehicle power consumption coordination management, thereby reducing whole-vehicle power consumption and extending whole-vehicle range and battery life.

[0044] In some embodiments, the intra-domain power consumption coordination management strategy includes a power consumption coordination management strategy within the power domain, a power consumption coordination management strategy within the chassis domain, and a power consumption coordination management strategy within the body domain.

[0045] The power domain power consumption coordination management strategy is a management mechanism for dynamically allocating power consumption for core components such as motors, batteries, and engines, as well as high-voltage accessories within the power domain.

[0046] The chassis domain power consumption coordination management strategy is a management mechanism for dynamically allocating power consumption for core components such as the braking system, suspension system, and steering system within the chassis domain, as well as the heterogeneous computing units of the controller within the domain.

[0047] The vehicle body domain power consumption coordination management strategy is a management mechanism for dynamically allocating power consumption for core components in the vehicle body domain, such as comfort control, safety assistance, bus communication, and domain controllers.

[0048] Based on the power consumption datasets of the powertrain domain, chassis domain, and body domain, a power consumption coordination management strategy within each domain is determined, including:

[0049] Based on the power domain power consumption dataset, a power domain power coordination management strategy for power domain systems is determined.

[0050] Based on the chassis domain power consumption dataset, determine the chassis domain power consumption coordination management strategy for chassis domain systems.

[0051] Based on the vehicle domain power consumption dataset, a coordinated power consumption management strategy within the vehicle domain is determined for the vehicle domain system.

[0052] In some embodiments, the power consumption coordination management strategy within the power domain includes a first power domain coordination response rule, a second power domain coordination response rule, and a third power domain coordination response rule.

[0053] Figure 3 This is a schematic diagram of the system structure of a dynamic domain system provided in an embodiment of this application. Please refer to... Figure 3 The power domain system 102 includes a power domain master controller 1021, a first power domain sub-controller 1022, a second power domain sub-controller 1023 and a third power domain sub-controller 1024 which are communicatively connected to the power domain master controller 1021.

[0054] As an example, the first power domain sub-controller 1022 may specifically be a motor controller (MCU), the second power domain sub-controller 1023 may specifically be a battery management system controller (BMS), and the third power domain sub-controller 1024 may specifically be an engine controller (ECU). The first power domain power consumption data may specifically be the real-time efficiency of the motor; the second power domain power consumption data may specifically be the battery SOC value; and the third power domain power consumption data may specifically be the engine load rate.

[0055] Based on the power consumption dataset of the power domain, a power consumption coordination and management strategy within the power domain is determined for the power domain system, including:

[0056] Based on the power consumption data of the first power domain, determine the coordination response rules within the first power domain for the second power domain sub-controller and the third power domain sub-controller.

[0057] Based on the power consumption data of the second power domain, the coordination response rules within the second power domain are determined for the first power domain sub-controller and the third power domain sub-controller.

[0058] Based on the power consumption data of the third power domain, the coordinated response rules within the third power domain are determined for the first power domain sub-controller and the second power domain sub-controller.

[0059] In one example, based on the power consumption data of the first power domain, a coordinated response rule within the first power domain is determined for the second power domain sub-controller and the third power domain sub-controller. Specifically, if the power consumption data of the first power domain (such as the real-time efficiency of the motor) is less than a first preset threshold (such as 85%), the coordinated response rule within the first power domain is as follows: the second power domain sub-controller 1023 (such as BMS) responds by reducing the discharge current by 10% to prioritize ensuring the voltage stability of the first power domain sub-controller 1022 (such as MCU); at the same time, if the vehicle is in hybrid mode, the third power domain sub-controller 1024 (such as ECU) responds by starting the engine in advance and switching to parallel drive to share the motor load.

[0060] Next, the vehicle controller 101 sends the aforementioned coordinated response rules within the first power domain to the power domain master controller 1021, which then distributes them to the second power domain sub-controller 1023 (such as BMS) and the third power domain sub-controller 1024 (such as ECU). The BMS and ECU then make corresponding responses to achieve coordinated control of power consumption within the power domain, thereby reducing the overall vehicle energy consumption and helping to extend the vehicle's range and battery life.

[0061] In another example, based on the power consumption data of the second power domain, a coordinated response rule within the second power domain is determined for the first power domain sub-controller and the third power domain sub-controller. Specifically, if the power consumption data (battery SOC value) of the second power domain is less than a second preset threshold (e.g., 20%), the coordinated response rule within the second power domain is as follows: the first power domain sub-controller 1022 (e.g., MCU) responds by forcibly limiting the motor torque to the rated value (e.g., 60%); at the same time, if the vehicle is a range-extended vehicle, the third power domain sub-controller 1024 (e.g., ECU) responds by forcibly starting the range extender and locking it to the highest efficiency speed (e.g., 2000 rpm).

[0062] Next, the vehicle controller 101 sends the aforementioned coordinated response rules within the second power domain to the power domain master controller 1021, which then distributes them to the first power domain sub-controller 1022 (such as an MCU) and the third power domain sub-controller 1024 (such as an ECU). The MCU and ECU then make corresponding responses to achieve coordinated control of power consumption within the power domain, thereby reducing the overall vehicle energy consumption and extending the vehicle's range and battery life.

[0063] In another example, based on the power consumption data of the third power domain, a coordinated response rule within the third power domain is determined for the first power domain sub-controller and the second power domain sub-controller. Specifically, if the power consumption data of the third power domain (such as the engine load rate) is greater than the third preset threshold (such as 90%), the second power domain sub-controller 1023 (such as BMS) will instantly increase the voltage to 105% of the rated value (such as from 400V to 420V) to reduce the current and reduce line loss. At the same time, the first power domain sub-controller 1022 (such as MCU) will respond after a 5-second delay to avoid the engine and motor from having peak output at the same time.

[0064] Next, the vehicle controller 101 sends the aforementioned coordinated response rules within the third power domain to the power domain master controller 1021, which then distributes them to the first power domain sub-controller 1022 (such as an MCU) and the second power domain sub-controller 1023 (such as a BMS). The MCU and BMS then make corresponding responses to achieve coordinated control of power consumption within the power domain, thereby reducing the overall vehicle energy consumption and extending the vehicle's range and battery life.

[0065] Figure 4 This is a schematic diagram of the system structure of a chassis domain system provided in an embodiment of this application. Please refer to [link / reference]. Figure 4 The chassis domain system 103 includes a chassis domain master controller 1031, a first chassis domain sub-controller 1032, a second chassis domain sub-controller 1033, and a third chassis domain sub-controller 1034 that are communicatively connected to the chassis domain master controller 1031.

[0066] As an example, the first chassis domain sub-controller 1032 may specifically be an electric power steering controller (EPS), the second chassis domain sub-controller 1033 may specifically be a chassis domain controller (VDC), and the third chassis domain sub-controller 1034 may specifically be an air suspension controller (ECAS). The power consumption data of the first chassis domain may specifically be the steering wheel speed; the power consumption data of the second chassis domain may specifically be the vehicle speed; and the power consumption data of the third chassis domain may specifically be the suspension height deviation value.

[0067] In some embodiments, based on the chassis domain power consumption dataset, a chassis domain power consumption coordination management strategy for the chassis domain system is determined, including:

[0068] Based on the power consumption data of the first chassis domain, determine the coordinated response rules within the first chassis domain for the second chassis domain sub-controller and the third chassis domain sub-controller;

[0069] Based on the power consumption data of the second chassis domain, determine the coordinated response rules within the second chassis domain for the first chassis domain sub-controller and the third chassis domain sub-controller;

[0070] Based on the power consumption data of the third chassis domain, the coordinated response rules within the third chassis domain are determined for the sub-controllers of the first and second chassis domains.

[0071] In one example, based on the power consumption data of the first chassis domain, a coordinated response rule within the first chassis domain is determined for the second chassis domain sub-controller and the third chassis domain sub-controller. Specifically, if the power consumption data of the first chassis domain (such as steering wheel speed) is less than a fourth preset threshold (such as 10° / s), the coordinated response rule within the first chassis domain is as follows: the second chassis domain sub-controller 1033 (such as VDC) responds by reducing the yaw damping control frequency (such as from 20 Hz to 5 Hz), reducing the number of solenoid valve actions by about 30%; if the vehicle speed is 0 at this time, the third chassis domain sub-controller 1034 (such as ECAS) responds by immediately shutting down the air pump motor, and the height adjustment request is delayed by 30 s.

[0072] Next, the vehicle controller 101 sends the aforementioned coordinated response rules within the first chassis domain to the chassis domain master controller 1031, which then distributes them to the second chassis domain sub-controller 1033 (such as VDC) and the third chassis domain sub-controller 1034 (such as ECAS). VDC and ECAS then make corresponding responses to achieve coordinated control of power consumption within the chassis domain, thereby reducing the vehicle's energy consumption and helping to extend the vehicle's range and battery life.

[0073] In another example, based on the power consumption data of the second chassis domain, a coordinated response rule within the second chassis domain is determined for the first chassis domain sub-controller and the third chassis domain sub-controller. Specifically, if the power consumption data of the second chassis domain (such as vehicle speed) is greater than a fifth preset threshold (such as 120 km / h), the coordinated response rule within the second chassis domain is as follows: the first chassis domain sub-controller 1032 (such as EPS) responds by reducing the upper limit of the assist current (for example, reducing the upper limit of the assist current from 90 A to 70 A), which can reduce high-speed energy consumption by approximately 15%. At the same time, the third chassis domain sub-controller 1034 (such as ECAS) responds by disabling the "comfort height adjustment" function, retaining only the "load balancing" function, and reducing the air pump duty cycle by half.

[0074] Next, the vehicle controller 101 sends the aforementioned coordinated response rules within the second chassis domain to the chassis domain master controller 1031, which then distributes them to the first chassis domain sub-controller 1032 (such as EPS) and the third chassis domain sub-controller 1034 (such as ECAS). EPS and ECAS then make corresponding responses to achieve coordinated control of power consumption within the chassis domain, thereby reducing the vehicle's energy consumption and helping to extend the vehicle's range and battery life.

[0075] In another example, based on the power consumption data of the third chassis domain, the coordinated response rules within the third chassis domain for the first chassis domain sub-controller and the second chassis domain sub-controller are determined. Specifically, if the power consumption data of the third chassis domain (such as the suspension height deviation value |ΔH|) is less than the sixth preset threshold (such as 5mm), the coordinated response rules within the third chassis domain are as follows: the first chassis domain sub-controller 1032 responds by reducing the power assist output and reducing the motor current, for example, reducing the power assist output by 2% and reducing the motor current by 0.8A; at the same time, the second chassis domain sub-controller 1033 (such as VDC) responds by exiting continuous damping adjustment, maintaining the current damping value, and the solenoid valve is de-energized to save energy.

[0076] Next, the vehicle controller 101 sends the aforementioned coordinated response rules within the third chassis domain to the chassis domain master controller 1031, which then distributes them to the first chassis domain sub-controller 1032 (such as EPS) and the second chassis domain sub-controller 1033 (such as VDC). The EPS and VDC then respond accordingly to achieve coordinated control of power consumption within the chassis domain, thereby reducing overall vehicle energy consumption and extending vehicle range and battery life.

[0077] Figure 5 This is a schematic diagram of the system structure of a vehicle body domain system provided in an embodiment of this application. Please refer to... Figure 5 The vehicle body domain system 104 includes a vehicle body domain master controller 1041, a first vehicle body domain sub-controller 1042, a second vehicle body domain sub-controller 1043, and a third vehicle body domain sub-controller 1044 which are communicatively connected to the vehicle body domain master controller 1041.

[0078] As an example, the first body domain sub-controller 1042, the second body domain sub-controller 1043, and the third body domain sub-controller 1044 can be the body controller (BCM), the air conditioning controller (HVAC), and the gateway controller (GW), respectively. The power consumption data of the first body domain can specifically be the door open / close status; the power consumption data of the second body domain can specifically be the temperature difference between the inside and outside of the vehicle; and the power consumption data of the third body domain can specifically be the CAN bus load rate.

[0079] Based on the vehicle domain power consumption dataset, a vehicle domain power consumption coordination management strategy is determined for the vehicle domain system, including:

[0080] Based on the power consumption data of the first body domain and the power consumption data of the second chassis domain, the coordinated response rules within the first body domain for the second body domain sub-controller and the third body domain sub-controller are determined.

[0081] Based on the power consumption data of the second body domain, determine the coordinated response rules within the second body domain for the first body domain sub-controller and the third body domain sub-controller;

[0082] Based on the power consumption data of the third body domain, the coordinated response rules within the third body domain are determined for the first body domain sub-controller and the second body domain sub-controller.

[0083] In one example, based on the power consumption data of the first body domain and the second chassis domain, a coordinated response rule within the first body domain is determined for the second body domain sub-controller and the third body domain sub-controller. Specifically, if the power consumption data of the first body domain (e.g., door open / closed status) indicates that any door is open, and the power consumption data of the second chassis domain (e.g., vehicle speed) is greater than a seventh preset threshold (e.g., 5 km / h), then the coordinated response rule within the first body domain is as follows: the second body domain sub-controller 1043 (e.g., HVAC) responds by reducing the compressor speed by 30% and shutting down the negative ion / fragrance pump, which can reduce power consumption by approximately 200 W. At the same time, the third body domain sub-controller 1044 (e.g., GW) responds by pausing non-diagnostic messages (e.g., ambient lighting, seat position broadcast messages), which can reduce the CAN bus load by approximately 5%.

[0084] Next, the vehicle controller 101 sends the aforementioned coordinated response rules within the first vehicle domain to the vehicle domain master controller 1041, which then distributes them to the second vehicle domain sub-controller 1043 (such as HVAC) and the third vehicle domain sub-controller 1044 (such as GW). HVAC and GW then respond accordingly to achieve coordinated control of power consumption within the vehicle domain, thereby reducing overall vehicle energy consumption and extending vehicle range and battery life.

[0085] In another example, based on the power consumption data of the second body domain, a coordinated response rule within the second body domain is determined for the first and third body domain sub-controllers. Specifically, if the power consumption data of the second body domain (such as the temperature difference between the inside and outside of the vehicle, |ΔT|) is less than an eighth preset threshold (such as 3℃), the coordinated response rule within the second body domain is as follows: the first body domain sub-controller 1042 (such as BCM) responds by turning off seat ventilation / heating and only keeping basic lighting on, which can reduce the static current by 1.2 A. At the same time, the third body domain sub-controller 1044 (such as GW) responds by extending the HVAC status frame period, for example, extending the HVAC status frame period from 100 ms to 1 s, which can reduce the CAN bandwidth usage by approximately 0.8%.

[0086] Next, the vehicle controller 101 sends the aforementioned second body domain coordinated response rules to the body domain master controller 1041, which then distributes them to the first body domain sub-controller 1042 (such as BCM) and the third body domain sub-controller 1044 (such as GW). The BCM and GW then make corresponding responses to achieve coordinated control of power consumption within the body domain, thereby reducing the overall vehicle energy consumption and helping to extend the vehicle's range and battery life.

[0087] In another example, based on the power consumption data of the third body domain, a coordinated response rule within the third body domain is determined for the first body domain sub-controller and the second body domain sub-controller. Specifically, if the power consumption data of the third body domain (such as the CAN bus load rate) is greater than the ninth preset threshold (such as 80%), the coordinated response rule within the third body domain is as follows: the first body domain sub-controller 1042 (such as BCM) delays the response to the remote key vehicle retrieval command and reduces the duty cycle of the low-frequency flashing lights. For example, the response to the remote key vehicle retrieval command is delayed by 200 ms, and the duty cycle of the low-frequency flashing lights is halved. At the same time, the second body domain sub-controller 1043 (such as HVAC) sets the target temperature allowable deviation to ±2℃, reduces the compressor start-stop frequency, and reduces the peak current (such as a 10% reduction in peak current).

[0088] Next, the vehicle controller 101 sends the aforementioned third body domain coordinated response rules to the body domain master controller 1041, which then distributes them to the first body domain sub-controller 1042 (such as BCM) and the second body domain sub-controller 1043 (such as HVAC). The BCM and HVAC then make corresponding responses to achieve coordinated control of power consumption within the body domain, thereby reducing the overall vehicle energy consumption and helping to extend the vehicle's range and battery life.

[0089] In some embodiments, the inter-domain power consumption coordination management strategy includes a first inter-domain power consumption coordination management strategy, a second inter-domain power consumption coordination management strategy, a third inter-domain power consumption coordination management strategy, and a fourth inter-domain power consumption coordination management strategy; based on the power domain power consumption dataset, the chassis domain power consumption dataset, and the body domain power consumption dataset, the inter-domain power consumption coordination management strategy is determined, including:

[0090] Based on the power consumption datasets of the power domain and the power consumption dataset of the body domain, a first-domain power consumption coordination management strategy is determined.

[0091] Based on the power consumption datasets of the power domain and the chassis domain, a second inter-domain power consumption coordination management strategy is determined.

[0092] Based on the chassis domain power consumption dataset and the body domain power consumption dataset, a third domain power consumption coordination management strategy is determined.

[0093] Based on the vehicle body domain power consumption dataset, a fourth domain power consumption coordination management strategy is determined.

[0094] In some embodiments, the first inter-domain power consumption coordination management strategy includes a first inter-domain power consumption response rule, a second inter-domain power consumption response rule, and a third inter-domain power consumption response rule; the first inter-domain power consumption coordination management strategy is determined based on the power domain power consumption dataset and the body domain power consumption dataset, including:

[0095] If the power consumption data of the second power domain and the power consumption data of the first body domain meet the preset extreme energy-saving mode triggering conditions, then the first inter-domain power consumption response rule for the power domain system, the second inter-domain power consumption response rule for the chassis domain system, and the third inter-domain power consumption response rule for the body domain system are generated.

[0096] The preset extreme energy-saving mode can be triggered when the battery SOC value is less than 15% (severely low charge) and the vehicle is in motion.

[0097] As an example, suppose the vehicle controller 101 determines that the vehicle is in a driving state based on the second power domain power consumption data (such as battery SOC value) reported by the second power domain sub-controller 1023 (such as BMS) in the power domain system 102 (severely low power) and the first body domain power consumption data (such as door opening and closing status) reported by the first body domain sub-controller 1042 (such as BCM) in the body domain system 104 (i.e., the extreme energy-saving mode triggering condition is met), then the first inter-domain power consumption response rule for the power domain system, the second inter-domain power consumption response rule for the chassis domain system, and the third inter-domain power consumption response rule for the body domain system are generated. Among them, (1) the first inter-domain power consumption response rule includes: the response measures of the power domain system include: for the MCU, limiting the maximum output power to 50% and limiting the maximum vehicle speed to 80km / h; for the BMS, requesting to relax the battery discharge cutoff voltage and allowing the use of the last reserve energy; for the ECU (hybrid vehicle), forcing the engine to work in the most efficient fixed power generation range. (2) The power consumption response rules between the second domain include: the response measures of the chassis domain system include: for EPS, reducing the power assist level (making the steering heavier) and reminding the driver; for ECAS, locking the suspension height and prohibiting any adjustment to save air compressor energy consumption; for VDC, turning off non-core functions such as TCS traction control (retaining the anti-lock braking system (ABS) function). (3) The power consumption response rules between the third domain include: the response measures of the body domain system include: for BCM, automatically turning off non-essential electrical appliances such as ambient lighting, entertainment screen, and seat heating; for HVAC, forcibly turning off the air conditioning compressor and switching to external circulation ventilation mode.

[0098] Next, the vehicle controller 101 sends the aforementioned first inter-domain power consumption response rule to the power domain master controller 1021. The power domain master controller 1021 then sends corresponding response commands to the first power domain sub-controller 1022, the second power domain sub-controller 1023, and the third power domain sub-controller 1024 according to the first inter-domain power consumption response rule, to complete power consumption control within the power domain. The vehicle controller 101 then sends the aforementioned second inter-domain power consumption response rule to the chassis domain master controller 1031. The chassis domain master controller 1031 then sends corresponding response commands to the first chassis domain sub-controller 1032, the second chassis domain sub-controller 1033, and the third chassis domain sub-controller 1034 according to the second inter-domain power consumption response rule, to complete power consumption control within the chassis domain. The vehicle controller 101 sends the aforementioned third inter-domain power consumption response rule to the vehicle body domain master controller 1041. The vehicle body domain master controller 1041 then sends corresponding response commands to the first vehicle body domain sub-controller 1042 and the second vehicle body domain sub-controller 1043 according to the third inter-domain power consumption response rule to complete the power consumption control within the vehicle body domain.

[0099] When the vehicle controller 101 detects that the vehicle is not in a driving state (such as when the vehicle is turned off) or the battery SOC value is greater than 20%, it controls the vehicle to exit the above-mentioned extreme energy-saving mode.

[0100] The above solution can achieve coordinated control of power consumption between the power domain system, chassis domain system and body domain system, thereby reducing the overall vehicle energy consumption and helping to extend the vehicle's range and battery life.

[0101] In some embodiments, the second inter-domain power consumption coordination management strategy includes a fourth inter-domain power consumption response rule, a fifth inter-domain power consumption response rule, and a sixth inter-domain power consumption response rule; based on the power domain power consumption dataset and the chassis domain power consumption dataset, the second inter-domain power consumption coordination management strategy is determined, including:

[0102] If the power consumption data of the first power domain and the power consumption data of the second chassis domain meet the preset high-efficiency cruise mode triggering conditions, then a fourth inter-domain power consumption response rule for the power domain system, a fifth inter-domain power consumption response rule for the chassis domain system, and a sixth inter-domain power consumption response rule for the body domain system are generated.

[0103] The preset conditions for triggering the high-efficiency cruise mode are that the motor requests torque values ​​that are stable within ±10% and the absolute value of the torque is low (in a stable driving state), and the vehicle speed is greater than 70km / h and the lateral acceleration is less than 0.2g (in a high-speed straight driving state).

[0104] As an example, suppose the vehicle controller 101 determines that the vehicle meets the above-mentioned preset high-efficiency cruise mode triggering conditions based on the first power domain power consumption data reported by the first power domain sub-controller 1022 (such as MCU) in the power domain system 102 and the second chassis domain power consumption data reported by the second chassis domain sub-controller 1033 in the chassis domain system 103. Then, it generates the fourth inter-domain power consumption response rule for the power domain system, the fifth inter-domain power consumption response rule for the chassis domain system, and the sixth inter-domain power consumption response rule for the body domain system. Among them, (4) the fourth inter-domain power consumption response rule includes: the response measures of the power domain system include: optimizing the torque distribution between MCU, BMS and ECU to ensure that the motor or engine works in the most efficient range. (5) the fifth inter-domain power consumption response rule includes: the response measures of the chassis domain system include: for ECAS, sending a "lower body" command to reduce wind resistance and achieve maximum energy saving; for EPS, switching to "high speed" assist mode to reduce assist current and reduce power consumption; for VDC, entering predictive economy mode to reduce unnecessary active intervention. (6) The power consumption response rules between the sixth domain include: The response measures of the vehicle body domain system include: For HVAC, automatic circulation is preferred to reduce the frequent start-stop of the compressor.

[0105] Next, the vehicle controller 101 sends the aforementioned inter-domain power consumption response rules (fourth, fifth, and sixth domains) to the power domain controller 1021, chassis domain controller 1031, and body domain controller 1041, respectively. The power domain controller 1021 then determines the torque distribution coefficients for the MCU, BMS, and ECU based on the fourth domain power consumption response rules to optimize the torque of the MCU, BMS, and ECU, thus completing the coordinated power consumption control within the power domain. The chassis domain controller 1031 sends corresponding response commands to the ECAS, EPS, and VDC based on the fifth domain power consumption response rules to complete the coordinated power consumption control within the chassis domain. Finally, the body domain controller 1041 sends corresponding response commands to the HVAC based on the sixth domain power consumption response rules to complete the coordinated power consumption control within the body domain.

[0106] When the vehicle controller 101 detects that the vehicle speed is less than 60km / h, or the motor torque demand suddenly increases (the vehicle accelerates rapidly), or the steering wheel angle increases (the vehicle turns), it exits the above-mentioned high-efficiency cruise mode.

[0107] The above solution can achieve coordinated control of power consumption between the power domain system, chassis domain system and body domain system, thereby reducing the overall vehicle energy consumption and helping to extend the vehicle's range and battery life.

[0108] In some embodiments, the third-domain power consumption coordination management strategy includes a seventh-domain power consumption response rule and an eighth-domain power consumption response rule; based on the chassis domain power consumption dataset and the body domain power consumption dataset, the third-domain power consumption coordination management strategy is determined, including:

[0109] If the power consumption data of the first chassis domain and the power consumption data of the first body domain meet the preset congestion standby mode triggering conditions, then the seventh inter-domain power consumption response rule for the power domain system, the eighth inter-domain power consumption response rule for the chassis domain system, and the ninth inter-domain power consumption response rule for the body domain system are generated.

[0110] The preset congestion standby mode trigger conditions can be that the vehicle is currently in "Ready-On" mode, the current speed is 0 km / h, and the duration is greater than 60 seconds (long-term parking wait).

[0111] As an example, assuming that the vehicle controller 101 determines that the vehicle meets the above-mentioned preset congestion standby mode triggering conditions based on the first body domain power consumption data reported by the body domain controller 1041 and the first chassis domain power consumption data reported by the chassis domain controller 1031, then the seventh inter-domain power consumption response rule for the power domain system and the eighth inter-domain power consumption response rule for the body domain system are generated. Among them, (7) the seventh inter-domain power consumption response rule includes: the response measures of the power domain system include: for ECU (fuel / hybrid vehicle), automatic start-stop is executed to shut down the engine; for MCU / BMS, low power consumption standby is entered to prepare to respond to torque requests at any time. (8) the eighth inter-domain power consumption response rule includes: the response measures of the body domain system include: for HVAC, if the temperature difference between the inside and outside of the vehicle is not large, the fan speed can be reduced or switched to internal circulation to maintain basic comfort. For BCM, the backlight of the instrument panel and the central control screen can be dimmed or turned off.

[0112] Next, the vehicle controller 101 sends the aforementioned seventh inter-domain power consumption response rule to the power domain master controller 1021. The power domain master controller 1021 then sends corresponding response commands to the first power domain sub-controller 1022, the second power domain sub-controller 1023, and the third power domain sub-controller 1024 according to the seventh inter-domain power consumption response rule, to complete power consumption control within the power domain. The vehicle controller 101 then sends the aforementioned eighth inter-domain power consumption response rule to the body domain master controller 1041. The body domain master controller 1041 then sends corresponding response commands to the HVAC and BCM according to the eighth inter-domain power consumption response rule, to complete power consumption control within the body domain.

[0113] When the vehicle controller 101 detects that the driver has pressed the accelerator or brake pedal, it exits the congestion standby mode described above.

[0114] The above solution can achieve coordinated control of power consumption between the power domain system, chassis domain system and body domain system, thereby reducing the overall vehicle energy consumption and helping to extend the vehicle's range and battery life.

[0115] In some embodiments, the fourth inter-domain power consumption coordination management strategy includes a ninth inter-domain power consumption response rule, a tenth inter-domain power consumption response rule, and an eleventh inter-domain power consumption response rule; based on the vehicle body domain power consumption dataset, the fourth inter-domain power consumption coordination management strategy is determined, including:

[0116] If the power consumption data of the first body domain and the power consumption data of the third body domain meet the preset deep sleep mode triggering conditions, then the ninth inter-domain power consumption response rule for the power domain system, the tenth inter-domain power consumption response rule for the chassis domain system, and the eleventh inter-domain power consumption response rule for the body domain system are generated.

[0117] The preset deep sleep mode trigger conditions can be that the current vehicle status is "locked" and the CAN bus load rate is less than 3% for a duration of more than 5 minutes (network communication is basically stopped).

[0118] As an example, assuming that the vehicle controller 101 determines that the vehicle meets the above-mentioned preset deep sleep mode triggering conditions based on the first body domain power consumption data and the third body domain power consumption data reported by the body domain master controller 1041, then the ninth inter-domain power consumption response rule for the power domain system, the tenth inter-domain power consumption response rule for the chassis domain system, and the eleventh inter-domain power consumption response rule for the body domain system are generated. Among them, (9) the ninth inter-domain power consumption response rule includes: the response measures of the power domain system include: the BMS, MCU, and ECU respond to enter the lowest power consumption state, and only retain the key state monitoring. (10) the tenth inter-domain power consumption response rule includes: the response measures of the chassis domain system include: the EPS, VDC, and ECAS enter the sleep state, and turn off the power supply of all sensors. (11) the eleventh inter-domain power consumption response rule includes: the response measures of the body domain system include: for GW, turn off most network channels, and only retain the single channel for listening to the remote key; for BCM / HVAC, enter deep sleep, and only retain the ability to wake up by hard-wired signals (such as opening the door).

[0119] Next, the vehicle controller 101 sends the aforementioned ninth inter-domain power consumption response rule to the power domain master controller 1021. The power domain master controller 1021 then sends corresponding response commands to the BMS, MCU, and ECU according to the ninth inter-domain power consumption response rule to complete the coordinated power consumption control within the power domain. The vehicle controller 101 sends the aforementioned tenth inter-domain power consumption response rule to the chassis domain master controller 1031. The chassis domain master controller 1031 then sends corresponding response commands to the EPS, VDC, and ECAS according to the tenth inter-domain power consumption response rule to complete the power consumption control within the chassis domain. The vehicle controller 101 sends the aforementioned eleventh inter-domain power consumption response rule to the body domain master controller 1041. The body domain master controller 1041 then sends corresponding response commands to the GW, BCM, and HVAC according to the eleventh inter-domain power consumption response rule to complete the power consumption control within the body domain.

[0120] When the vehicle controller 101 receives a remote key unlock signal reported by the BCM, or a message from the GW indicating that a network wake-up frame has been received, it exits the aforementioned deep sleep mode.

[0121] The above solution can achieve coordinated control of power consumption between the power domain system, chassis domain system and body domain system, thereby reducing the overall vehicle energy consumption and helping to extend the vehicle's range and battery life.

[0122] All of the above-mentioned optional technical solutions can be combined in any way to form the optional embodiments of this application, and will not be described in detail here.

[0123] The following are embodiments of the apparatus described in this application, which can be used to execute the embodiments of the method described in this application. For details not disclosed in the apparatus embodiments of this application, please refer to the embodiments of the method described in this application.

[0124] Figure 6 This is a schematic diagram of the structure of a vehicle controller provided in an embodiment of this application. Figure 6 As shown, the vehicle controller 101 includes:

[0125] The data acquisition module 601 is configured to acquire power domain power consumption datasets reported by the power domain master controller in the power domain system, chassis domain power consumption datasets reported by the chassis domain master controller in the chassis domain system, and body domain power consumption datasets reported by the body domain master controller in the body domain system; the power domain system includes a first power domain sub-controller, a second power domain sub-controller, and a third power domain sub-controller; the power domain power consumption datasets include first power domain power consumption data corresponding to the first power domain sub-controller, second power domain power consumption data corresponding to the second power domain sub-controller, and third power domain power consumption data corresponding to the third power domain sub-controller.

[0126] The power management module 602 is configured to determine the intra-domain power coordination management strategy and the inter-domain power coordination management strategy based on the power domain power consumption dataset, the chassis domain power consumption dataset, and the body domain power consumption dataset, and to perform whole-vehicle power consumption coordination management.

[0127] The inter-domain power consumption coordination management strategy includes a first inter-domain power consumption coordination management strategy, a second inter-domain power consumption coordination management strategy, a third inter-domain power consumption coordination management strategy, and a fourth inter-domain power consumption coordination management strategy. Based on the power domain power consumption dataset, chassis domain power consumption dataset, and body domain power consumption dataset, the inter-domain power consumption coordination management strategy is determined, including:

[0128] Based on the power consumption dataset in the power domain and the power consumption dataset in the body domain, a first inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the power domain and the power consumption dataset in the chassis domain, a second inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the chassis domain and the power consumption dataset in the body domain, a third inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the body domain, a fourth inter-domain power consumption coordination management strategy is determined.

[0129] In some embodiments, the intra-domain power consumption coordination management strategy includes a power consumption coordination management strategy within the power domain, a power consumption coordination management strategy within the chassis domain, and a power consumption coordination management strategy within the body domain.

[0130] The aforementioned power management module 602 includes:

[0131] The first determining unit is configured to determine a power domain power coordination management strategy for the power domain system based on the power domain power consumption dataset.

[0132] The second determining unit is configured to determine a chassis domain power coordination management strategy for the chassis domain system based on the chassis domain power consumption dataset.

[0133] The third determining unit is configured to determine the power consumption coordination management strategy within the vehicle domain for the vehicle domain system based on the vehicle domain power consumption dataset.

[0134] In some embodiments, the power consumption coordination management strategy within the power domain includes a first power domain coordination response rule, a second power domain coordination response rule, and a third power domain coordination response rule.

[0135] The first determining unit mentioned above can be specifically configured as follows:

[0136] Based on the power consumption data of the first power domain, determine the coordination response rules within the first power domain for the second power domain sub-controller and the third power domain sub-controller.

[0137] Based on the power consumption data of the second power domain, the coordination response rules within the second power domain are determined for the first power domain sub-controller and the third power domain sub-controller.

[0138] Based on the power consumption data of the third power domain, the coordinated response rules within the third power domain are determined for the first power domain sub-controller and the second power domain sub-controller.

[0139] In some embodiments, the vehicle domain system includes a first vehicle domain sub-controller, a second vehicle domain sub-controller, and a third vehicle domain sub-controller; the vehicle domain power consumption dataset includes first vehicle domain power consumption data corresponding to the first vehicle domain sub-controller, second vehicle domain power consumption data corresponding to the second vehicle domain sub-controller, and third vehicle domain power consumption data corresponding to the third vehicle domain sub-controller; the first inter-domain power consumption coordination management strategy includes first inter-domain power consumption response rules, second inter-domain power consumption response rules, and third inter-domain power consumption response rules.

[0140] The aforementioned fourth determining unit can be specifically configured as follows:

[0141] If the power consumption data of the second power domain and the power consumption data of the first body domain meet the preset extreme energy-saving mode triggering conditions, then the first inter-domain power consumption response rule for the power domain system, the second inter-domain power consumption response rule for the chassis domain system, and the third inter-domain power consumption response rule for the body domain system are generated.

[0142] In some embodiments, the chassis domain system includes a first chassis domain sub-controller, a second chassis domain sub-controller, and a third chassis domain sub-controller; the chassis domain power consumption dataset includes first chassis domain power consumption data corresponding to the first chassis domain sub-controller, second chassis domain power consumption data corresponding to the second chassis domain sub-controller, and third chassis domain power consumption data corresponding to the third chassis domain sub-controller; the second inter-domain power consumption coordination management strategy includes a fourth inter-domain power consumption response rule, a fifth inter-domain power consumption response rule, and a sixth inter-domain power consumption response rule.

[0143] The aforementioned fifth determining unit can be specifically configured as follows:

[0144] If the power consumption data of the first power domain and the power consumption data of the second chassis domain meet the preset high-efficiency cruise mode triggering conditions, then a fourth inter-domain power consumption response rule for the power domain system, a fifth inter-domain power consumption response rule for the chassis domain system, and a sixth inter-domain power consumption response rule for the body domain system are generated.

[0145] In some embodiments, the third inter-domain power consumption coordination management strategy includes the seventh inter-domain power consumption response rule, the eighth inter-domain power consumption response rule, and the ninth inter-domain power consumption response rule.

[0146] The aforementioned sixth determining unit can be specifically configured as follows:

[0147] If the power consumption data of the first chassis domain and the power consumption data of the first body domain meet the preset congestion standby mode triggering conditions, then the seventh inter-domain power consumption response rule for the power domain system and the eighth inter-domain power consumption response rule for the body domain system are generated.

[0148] In some embodiments, the fourth inter-domain power consumption coordination management strategy includes the ninth inter-domain power consumption response rule, the tenth inter-domain power consumption response rule, and the eleventh inter-domain power consumption response rule.

[0149] The aforementioned seventh determining unit can be specifically configured as follows:

[0150] If the power consumption data of the first body domain and the power consumption data of the third body domain meet the preset deep sleep mode triggering conditions, then the ninth inter-domain power consumption response rule for the power domain system, the tenth inter-domain power consumption response rule for the chassis domain system, and the eleventh inter-domain power consumption response rule for the body domain system are generated.

[0151] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0152] Figure 7 This is a schematic diagram of the structure of a new energy vehicle provided in an embodiment of this application. For ease of understanding, only the parts of the structure related to the embodiment of this application are shown in the figure. Please refer to... Figure 7 The new energy vehicle includes a vehicle controller 101, a power domain system 102, a chassis domain system 103, and a body domain system 104, all communicatively connected to the vehicle controller 101. The power domain system 102 includes a power domain master controller 1021 and at least one power domain sub-controller, each of which is communicatively connected to the power domain master controller. For example, the power domain system 102 includes a first power domain sub-controller 1022, a second power domain sub-controller 1023, and a third power domain sub-controller 1024, all communicatively connected to the power domain master controller 1021. The chassis domain system 103 includes a chassis domain master controller 1031 and at least one chassis domain sub-controller, each of which is communicatively connected to the chassis domain master controller. For example, the chassis domain system 103 includes a first chassis domain sub-controller 1032, a second chassis domain sub-controller 1033, and a third chassis domain sub-controller 1034, all communicatively connected to the chassis domain master controller 1031. The vehicle domain system 104 includes a vehicle domain master controller 1041 and at least one vehicle domain sub-controller, each of which is communicatively connected to the vehicle domain master controller. For example, the chassis domain system 103 includes a first vehicle domain sub-controller 1042, a second vehicle domain sub-controller 1043, and a third vehicle domain sub-controller 1044, which are communicatively connected to the vehicle domain master controller 1041.

[0153] The vehicle controller 101 is configured as follows:

[0154] Obtain the power domain power consumption dataset reported by the power domain master controller in the power domain system, the chassis domain power consumption dataset reported by the chassis domain master controller in the chassis domain system, and the body domain power consumption dataset reported by the body domain master controller in the body domain system.

[0155] Based on the power consumption datasets of the power domain, chassis domain, and body domain, the power consumption coordination management strategies within and between domains are determined, and the power consumption coordination management of the whole vehicle is carried out.

[0156] The new energy vehicle provided in this application embodiment can achieve unified vehicle power consumption coordination management, thereby reducing vehicle power consumption and extending vehicle range and battery life.

[0157] Figure 8 This is a schematic diagram of the electronic device 800 provided in an embodiment of this application. For example... Figure 8 As shown, the electronic device 800 of this embodiment includes: a processor 801, a memory 802, and a computer program 803 stored in the memory 802 and executable on the processor 801. When the processor 801 executes the computer program 803, it implements the steps in the various method embodiments described above. Alternatively, when the processor 801 executes the computer program 803, it implements the functions of each module / unit in the various device embodiments described above.

[0158] Electronic device 800 can be a desktop computer, laptop, handheld computer, cloud server, or other electronic device. Electronic device 800 may include, but is not limited to, a processor 801 and a memory 802. Those skilled in the art will understand that... Figure 8 This is merely an example of electronic device 800 and does not constitute a limitation on electronic device 800. It may include more or fewer components than shown, or different components.

[0159] The processor 801 can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0160] The memory 802 can be an internal storage unit of the electronic device 800, such as a hard disk or RAM of the electronic device 800. The memory 802 can also be an external storage device of the electronic device 800, such as a plug-in hard disk, Smart Media Card (SMC), Secure Digital (SD) card, or Flash Card equipped on the electronic device 800. The memory 802 can also include both internal and external storage units of the electronic device 800. The memory 802 is used to store computer programs and other programs and data required by the electronic device.

[0161] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0162] If an integrated module / unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can also be implemented by a computer program instructing related hardware. The computer program can be stored in a readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program may include computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. A computer-readable medium may include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in a computer-readable medium can be appropriately added to or subtracted according to the requirements of legislation and patent practice in a jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, a computer-readable medium does not include electrical carrier signals and electrical signals.

[0163] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A method for coordinated management of vehicle power consumption, characterized in that, It is applied to a vehicle controller, which is communicatively connected to a power domain system, a chassis domain system, and a body domain system; the power domain system includes a first power domain sub-controller, a second power domain sub-controller, and a third power domain sub-controller; the first power domain sub-controller, the second power domain sub-controller, and the third power domain sub-controller are respectively a motor controller, a battery management system controller, and an engine controller; The method includes: Obtain the power domain power consumption dataset reported by the power domain master controller in the power domain system, the chassis domain power consumption dataset reported by the chassis domain master controller in the chassis domain system, and the body domain power consumption dataset reported by the body domain master controller in the body domain system. The chassis domain system includes a first chassis domain sub-controller, a second chassis domain sub-controller, and a third chassis domain sub-controller; the first chassis domain sub-controller, the second chassis domain sub-controller, and the third chassis domain sub-controller are respectively an electric power steering controller, a chassis domain controller, and an air suspension controller; the chassis domain power consumption dataset includes first chassis domain power consumption data corresponding to the first chassis domain sub-controller, second chassis domain power consumption data corresponding to the second chassis domain sub-controller, and third chassis domain power consumption data corresponding to the third chassis domain sub-controller; the first chassis domain power consumption data, the second chassis domain power consumption data, and the third chassis domain power consumption data are respectively steering wheel speed, vehicle speed, and suspension height deviation value; The vehicle domain system includes a first vehicle domain sub-controller, a second vehicle domain sub-controller, and a third vehicle domain sub-controller; the first, second, and third vehicle domain sub-controllers are respectively a vehicle controller, an air conditioning controller, and a gateway controller; the vehicle domain power consumption dataset includes first vehicle domain power consumption data corresponding to the first vehicle domain sub-controller, second vehicle domain power consumption data corresponding to the second vehicle domain sub-controller, and third vehicle domain power consumption data corresponding to the third vehicle domain sub-controller; the first, second, and third vehicle domain power consumption data are respectively the door opening / closing status, the temperature difference between the inside and outside of the vehicle, and the CAN bus load rate; based on the power domain power consumption dataset, chassis domain power consumption dataset, and vehicle domain power consumption dataset, intra-domain power consumption coordination management strategies and inter-domain power consumption coordination management strategies are determined, and vehicle power consumption coordination management is performed; The power domain power consumption dataset includes first power domain power consumption data corresponding to the first power domain sub-controller, second power domain power consumption data corresponding to the second power domain sub-controller, and third power domain power consumption data corresponding to the third power domain sub-controller; the first power domain power consumption data, the second power domain power consumption data, and the third power domain power consumption data are respectively the motor real-time efficiency, battery SOC value, and engine load rate; The inter-domain power consumption coordination management strategy includes a first inter-domain power consumption coordination management strategy, a second inter-domain power consumption coordination management strategy, a third inter-domain power consumption coordination management strategy, and a fourth inter-domain power consumption coordination management strategy. Based on the power consumption datasets in the powertrain domain, chassis domain, and body domain, an inter-domain power consumption coordination management strategy is determined, including: Based on the power consumption datasets in the power domain and the vehicle body domain, a first inter-domain power consumption coordination management strategy is determined. Based on the power consumption datasets in the power domain and the chassis domain, a second inter-domain power consumption coordination management strategy is determined. Based on the power consumption datasets in the chassis domain and the vehicle body domain, a third inter-domain power consumption coordination management strategy is determined. Based on the vehicle body domain power consumption dataset, a fourth inter-domain power consumption coordination management strategy is determined. The first inter-domain power consumption coordination management strategy corresponds to an extreme energy-saving mode, the second inter-domain power consumption coordination management strategy corresponds to an efficient cruise mode, the third inter-domain power consumption coordination management strategy corresponds to a congestion standby mode, and the fourth inter-domain power consumption coordination management strategy corresponds to a deep sleep mode.

2. The method according to claim 1, characterized in that, The power consumption coordination management strategy within the domain includes the power consumption coordination management strategy within the power domain, the power consumption coordination management strategy within the chassis domain, and the power consumption coordination management strategy within the body domain. Based on the power consumption datasets in the powertrain domain, chassis domain, and body domain, a power consumption coordination management strategy within each domain is determined, including: Based on the power domain power consumption dataset, a power domain power consumption coordination management strategy for the power domain system is determined. Based on the chassis domain power consumption dataset, determine the chassis domain power consumption coordination management strategy for the chassis domain system. Based on the vehicle domain power consumption dataset, a vehicle domain power consumption coordination management strategy is determined for the vehicle domain system.

3. The method according to claim 2, characterized in that, The power consumption coordination management strategy within the power domain includes a first power domain coordination response rule, a second power domain coordination response rule, and a third power domain coordination response rule. Based on the power domain power consumption dataset, a power domain-specific power consumption coordination and management strategy for the power domain system is determined, including: Based on the power consumption data of the first power domain, a first power domain coordination response rule is determined for the second power domain sub-controller and the third power domain sub-controller. Based on the power consumption data of the second power domain, a coordinated response rule within the second power domain is determined for the first power domain sub-controller and the third power domain sub-controller. Based on the power consumption data of the third power domain, the coordinated response rules within the third power domain for the first power domain sub-controller and the second power domain sub-controller are determined.

4. The method according to claim 1, characterized in that, The first inter-domain power consumption coordination management strategy includes a first inter-domain power consumption response rule, a second inter-domain power consumption response rule, and a third inter-domain power consumption response rule; Based on the power domain power consumption dataset and the body domain power consumption dataset, a first inter-domain power consumption coordination management strategy is determined, including: If the power consumption data of the second power domain and the power consumption data of the first body domain meet the preset extreme energy-saving mode triggering conditions, then a first inter-domain power consumption response rule for the power domain system, a second inter-domain power consumption response rule for the chassis domain system, and a third inter-domain power consumption response rule for the body domain system are generated.

5. The method according to claim 4, characterized in that, The second inter-domain power consumption coordination management strategy includes the fourth inter-domain power consumption response rule, the fifth inter-domain power consumption response rule, and the sixth inter-domain power consumption response rule; Based on the power domain power consumption dataset and the chassis domain power consumption dataset, a second inter-domain power consumption coordination management strategy is determined, including: If the power consumption data of the first power domain and the power consumption data of the second chassis domain meet the preset high-efficiency cruise mode triggering conditions, then a fourth inter-domain power consumption response rule for the power domain system, a fifth inter-domain power consumption response rule for the chassis domain system, and a sixth inter-domain power consumption response rule for the body domain system are generated.

6. The method according to claim 5, characterized in that, The third inter-domain power consumption coordination management strategy includes the seventh inter-domain power consumption response rule and the eighth inter-domain power consumption response rule. Based on the chassis domain power consumption dataset and the body domain power consumption dataset, a third-domain inter-domain power consumption coordination management strategy is determined, including: If the power consumption data of the first chassis domain and the power consumption data of the first body domain meet the preset congestion standby mode triggering conditions, then a seventh inter-domain power consumption response rule for the power domain system and an eighth inter-domain power consumption response rule for the body domain system are generated.

7. The method according to claim 4, characterized in that, The fourth inter-domain power consumption coordination management strategy includes the ninth inter-domain power consumption response rule, the tenth inter-domain power consumption response rule, and the eleventh inter-domain power consumption response rule. Based on the vehicle domain power consumption dataset, a fourth-domain inter-domain power consumption coordination management strategy is determined, including: If the power consumption data of the first body domain and the power consumption data of the third body domain meet the preset deep sleep mode triggering conditions, then a ninth inter-domain power consumption response rule for the power domain system, a tenth inter-domain power consumption response rule for the chassis domain system, and an eleventh inter-domain power consumption response rule for the body domain system are generated.

8. A vehicle controller, characterized in that, The vehicle controller is used to implement the method according to any one of claims 1 to 7, and the vehicle controller includes: The data acquisition module is configured to acquire the power domain power consumption dataset reported by the power domain master controller in the power domain system, the chassis domain power consumption dataset reported by the chassis domain master controller in the chassis domain system, and the body domain power consumption dataset reported by the body domain master controller in the body domain system. The power management module is configured to determine the intra-domain power coordination management strategy and the inter-domain power coordination management strategy based on the power domain power consumption dataset, chassis domain power consumption dataset and body domain power consumption dataset, and to perform whole vehicle power consumption coordination management. The inter-domain power consumption coordination management strategy includes a first inter-domain power consumption coordination management strategy, a second inter-domain power consumption coordination management strategy, a third inter-domain power consumption coordination management strategy, and a fourth inter-domain power consumption coordination management strategy. Based on the power consumption datasets in the powertrain domain, chassis domain, and body domain, an inter-domain power consumption coordination management strategy is determined, including: Based on the power consumption dataset in the power domain and the power consumption dataset in the body domain, a first inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the power domain and the power consumption dataset in the chassis domain, a second inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the chassis domain and the power consumption dataset in the body domain, a third inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the body domain, a fourth inter-domain power consumption coordination management strategy is determined.

9. A new energy vehicle, characterized in that, The new energy vehicle includes a vehicle controller as described in claim 8, and a power domain system, a chassis domain system, and a body domain system communicatively connected to the vehicle controller; the power domain system includes a power domain master controller and at least one power domain sub-controller, and each power domain sub-controller is communicatively connected to the power domain master controller; the chassis domain system includes a chassis domain master controller and at least one chassis domain sub-controller, and each chassis domain sub-controller is communicatively connected to the chassis domain master controller; the body domain system includes a body domain master controller and at least one body domain sub-controller, and each body domain sub-controller is communicatively connected to the body domain master controller. The vehicle controller is configured as follows: Obtain the power domain power consumption dataset reported by the power domain master controller in the power domain system, the chassis domain power consumption dataset reported by the chassis domain master controller in the chassis domain system, and the body domain power consumption dataset reported by the body domain master controller in the body domain system. Based on the power consumption datasets in the power domain, chassis domain, and body domain, the power consumption coordination management strategies within and between domains are determined, and the power consumption coordination management of the entire vehicle is performed. The inter-domain power consumption coordination management strategy includes a first inter-domain power consumption coordination management strategy, a second inter-domain power consumption coordination management strategy, a third inter-domain power consumption coordination management strategy, and a fourth inter-domain power consumption coordination management strategy. Based on the power consumption datasets in the powertrain domain, chassis domain, and body domain, an inter-domain power consumption coordination management strategy is determined, including: Based on the power consumption dataset in the power domain and the power consumption dataset in the body domain, a first inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the power domain and the power consumption dataset in the chassis domain, a second inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the chassis domain and the power consumption dataset in the body domain, a third inter-domain power consumption coordination management strategy is determined. Based on the power consumption dataset in the body domain, a fourth inter-domain power consumption coordination management strategy is determined.

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