Vehicle domain controller, vehicle control system, new energy commercial vehicle and control method

Abstract

The present application provides a vehicle domain controller, a vehicle control system, a new energy commercial vehicle and a control method. The vehicle domain controller includes: a control decision module, a wired communication module, a wireless communication module, a signal acquisition module, a speed control module and a power drive module arranged on the same circuit board. The control decision module is connected to the wired communication module, the wireless communication module, the signal acquisition module, the speed control module and the power drive module through on-board wiring, respectively. The wired communication module is connected to other controllers in the vehicle through an electrical wiring harness, the wireless communication module is connected to a cloud platform for communication, the signal acquisition module is connected to the in-vehicle control device through an electrical wiring harness, the speed control module is connected to the in-vehicle rotating device through an electrical wiring harness, and the power drive module is connected to the in-vehicle power device through an electrical wiring harness. The hardware resources are integrated into a set of hardware through the vehicle domain controller, the number and cost of wiring harnesses are reduced, the difficulty of assembly is simplified, and the reliability of the vehicle is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and more specifically, to a vehicle domain controller, a vehicle control system, a new energy commercial vehicle, and a control method. Background Art

[0002] With the continuous advancement of the energy conservation and emission reduction strategy, new energy commercial vehicles have increasingly highlighted their irreplaceable role in "reducing energy consumption and emissions". Meanwhile, with the rapid development of electronic information technology, the intelligence, informatization and safety of commercial vehicles have been greatly improved.

[0003] In the related technologies, as the electrical functions of vehicles increase rapidly, the number of various controllers carried by vehicles also shows a trend of rapid growth. At the same time, the types, quantity, weight and other classifications of on-board electrical components such as electrical wiring harnesses, sensors and actuators outside the controllers are becoming increasingly complex. This has caused great design and manufacturing problems for vehicle system costs and electrical design. At the same time, due to the highly complex operating conditions of commercial vehicles, the reliability of their vehicle control systems is also facing increasingly serious technical risks, and no relevant solutions have been provided so far. Summary of the invention

[0004] In view of this, the embodiments of the present application provide a vehicle domain controller, a vehicle control system, a new energy commercial vehicle and a control method, so as to integrate the original hardware resources into a set of hardware through the vehicle domain controller, reduce the number and cost of wiring harnesses, simplify the assembly difficulty, and improve vehicle reliability.

[0005] In a first aspect, an embodiment of the present application provides a vehicle domain controller, comprising: a control decision module, a wired communication module, a wireless communication module, a signal acquisition module, a speed control module and a power drive module arranged on the same circuit board; the control decision module is connected to the wired communication module, the wireless communication module, the signal acquisition module, the speed control module and the power drive module respectively through on-board wiring;

[0006] The wired communication module is connected to other controllers in the vehicle through an electrical wiring harness, the wireless communication module is connected to the cloud platform for communication, the signal acquisition module is connected to the control device in the vehicle through an electrical wiring harness, the speed control module is connected to the rotating device in the vehicle through an electrical wiring harness, and the power drive module is connected to the power device in the vehicle through an electrical wiring harness.

[0007] In an optional embodiment, the vehicle domain controller also includes: a data encryption and decryption module arranged on the same circuit board, the data encryption and decryption module is connected to the control decision module through on-board wiring, and the data encryption and decryption module is also connected to the wired communication module and the wireless communication module through on-board wiring, respectively.

[0008] In an optional implementation, the vehicle domain controller further includes: a board-level power supply module, a signal power supply module, a storage module, and a clock module arranged on the same circuit board;

[0009] The board-level power supply module is respectively connected to the control decision module, the wired communication module, the wireless communication module, the speed control module, the power drive module, the data encryption and decryption module, the storage module and the clock module through on-board wiring;

[0010] The signal power supply module, the storage module, and the clock module are respectively connected to the control decision module through on-board wiring, and the signal power supply module is also connected to the signal acquisition module through on-board wiring.

[0011] In an optional implementation, the control decision module includes: a first processing chip, a second processing chip and a third processing chip;

[0012] The board-level power supply module, the wired communication module, the clock module, the storage module and the data encryption and decryption module are respectively connected to the first processing chip through on-board wiring;

[0013] The board-level power supply module, the wireless communication module, the clock module, the storage module and the data encryption and decryption module are connected to the second processing chip through on-board wiring;

[0014] The board-level power supply module, the wired communication module, the signal power supply module, the signal acquisition module, the speed control module, the storage module and the power driving module are connected to the third processing chip through on-board wiring.

[0015] In a second aspect, an embodiment of the present application further provides a vehicle control system, including: other in-vehicle controllers, in-vehicle rotating devices, in-vehicle control devices, in-vehicle power devices, and the vehicle domain controller described in any one of the first aspects;

[0016] The wired communication module in the vehicle domain controller and other controllers in the vehicle are connected through an electrical wiring harness, the speed control module in the vehicle domain controller and the rotating devices in the vehicle are connected through an electrical wiring harness, the signal acquisition module in the vehicle domain controller and the control devices in the vehicle are connected through an electrical wiring harness, and the power drive module in the vehicle domain controller and the power devices in the vehicle are connected through an electrical wiring harness.

[0017] In a third aspect, an embodiment of the present application further provides a new energy commercial vehicle, comprising at least the vehicle control system described in the second aspect.

[0018] In a fourth aspect, an embodiment of the present application further provides a vehicle control method, which is applied to the first processing chip in the vehicle domain controller described in the first aspect, and the method includes:

[0019] If a sleep event is monitored, calling the sleep interface of the second processing chip to put the second processing chip into a sleep state;

[0020] Performing a setting operation of the first sleep bit, so that after the third processing chip monitors the first sleep bit, the sleep interface of the third processing chip is called to enter the sleep state and perform the setting operation of the second sleep bit;

[0021] After monitoring the second sleep bit, calling the sleep interface of the wireless communication module to make the wireless communication module enter the sleep state and perform the setting operation of the third sleep bit;

[0022] After the third sleep bit is monitored, the sleep interface of the first processing chip is called to enter the sleep state.

[0023] In an optional implementation, the vehicle domain controller further includes: a fourth processing chip;

[0024] The performing of the setting operation of the first sleep bit so that the third processing chip monitors the first sleep bit, calls the sleep interface of the third processing chip to enter the sleep state and performs the setting operation of the second sleep bit, includes:

[0025] The setting operation of the first sleep bit is executed, so that after the fourth processing chip monitors the first sleep bit, it calls the sleep interface of the fourth processing chip to enter the sleep state, and executes the setting operation of the fourth sleep bit; after the third processing chip monitors the fourth sleep bit, it calls the sleep interface of the third processing chip to enter the sleep state and executes the setting operation of the second sleep bit.

[0026] In an optional embodiment, the method further comprises:

[0027] If a wake-up event is monitored through the wireless communication module, the setting operation of the first wake-up bit is executed, so that after the second processing chip monitors the first wake-up bit, the board-level power supply module is controlled to supply power, and the first processing chip and the second processing chip enter the wake-up state, and after the third processing chip monitors the first wake-up bit, it enters the wake-up state and executes the setting operation of the second wake-up bit.

[0028] In an optional embodiment, the vehicle domain controller further includes: a fourth processing chip, and the setting operation of the second wake-up bit is used to enable the fourth processing chip to enter a wake-up state after monitoring the second wake-up bit and execute the setting operation of the third wake-up bit.

[0029] The present application provides a vehicle domain controller, a vehicle control system, a new energy commercial vehicle and a control method. The vehicle domain controller includes: a control decision module, a wired communication module, a wireless communication module, a signal acquisition module, a speed control module and a power drive module arranged on the same circuit board. The control decision module is connected to the wired communication module, the wireless communication module, the signal acquisition module, the speed control module and the power drive module through on-board wiring, respectively. The wired communication module is connected to other controllers in the vehicle through an electrical wiring harness, the wireless communication module is connected to a cloud platform for communication, the signal acquisition module is connected to the in-vehicle control device through an electrical wiring harness, the speed control module is connected to the in-vehicle rotating device through an electrical wiring harness, and the power drive module is connected to the in-vehicle power device through an electrical wiring harness. The hardware resources are integrated into a set of hardware through the vehicle domain controller, the number and cost of wiring harnesses are reduced, the difficulty of assembly is simplified, and the reliability of the vehicle is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 Schematic diagram of the structure of the vehicle domain controller provided in the embodiment of the present application Figure 1 ;

[0032] Figure 2 Schematic diagram of the structure of the vehicle domain controller provided in the embodiment of the present application Figure 2 ;

[0033] Figure 3 Schematic diagram of the structure of the vehicle domain controller provided in the embodiment of the present application Figure 3 ;

[0034] Figure 4 A schematic diagram of the structure of a vehicle control system provided in an embodiment of the present application;

[0035] Figure 5 Schematic diagram of the process of the vehicle control method provided in the embodiment of the present application Figure 1 ;

[0036] Figure 6 Schematic diagram of the process of the vehicle control method provided in the embodiment of the present application Figure 2 .

[0037] Reference numerals:

[0038] 100-vehicle domain controller; 101-control decision module; 102-wired communication module; 103-wireless communication module, 104-signal acquisition module, 105-speed control module; 106-power drive module; 107-data encryption and decryption module; 108-board-level power supply module; 109-signal power supply module; 110-storage module; 111-clock module; 20-first processing chip; 21-second processing chip; 22-third processing chip;

[0039] 200- other controllers in the car; 300- rotating devices in the car; 400- control devices in the car; 500- power devices in the car. DETAILED DESCRIPTION

[0040] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0041] In the related technologies, as the electrical functions of vehicles increase rapidly, the number of various controllers carried by vehicles also shows a trend of rapid growth. At the same time, the types, quantity, weight and other classifications of on-board electrical components such as electrical wiring harnesses, sensors, and actuators outside the controller are becoming increasingly complex. For example, for the three electrical control functions of gateway control, vehicle-cloud interaction, and vehicle control of the traditional distributed vehicle electrical architecture, the hardware resources of three sets of distributed controllers (i.e., vehicle controller, gateway controller, and vehicle-cloud controller) are usually required to realize these three electrical control functions respectively. The vehicle-cloud controller can be TBOX, which leads to problems such as high number and cost of wiring harnesses, more complex wiring harness design, high BOM cost, complicated number of controllers, extended control decision time, and high vehicle weight, thus causing great design and manufacturing problems for vehicle system cost and electrical design. At the same time, due to the high complexity of commercial vehicle operation conditions, the reliability of its vehicle control system is also facing increasingly serious technical risks, and no relevant solutions have been provided so far.

[0042] Based on this, the present application integrates hardware resources into a set of hardware through a vehicle controller, reduces the number and cost of wiring harnesses, simplifies assembly difficulty, improves vehicle reliability, and reduces the weight of the control system, thereby achieving the purpose of reducing vehicle weight, reducing the complexity of vehicle electrical design and production line assembly hours, improving assembly efficiency, and reducing control decision delays.

[0043] Taking the three electronic control functions of vehicle gateway control, vehicle-cloud interaction, and whole vehicle control as an example, the whole vehicle domain controller can integrate the hardware resources of the three distributed controllers. The functions that could only be completed by the original three distributed controllers can be optimized to only require one set of vehicle domain controller through vertical integration of software and hardware resources, thereby realizing highly integrated electronic control functions through the vehicle domain controller, reducing costs and simplifying assembly.

[0044] Figure 1 Schematic diagram of the structure of the vehicle domain controller provided in the embodiment of the present application Figure 1 ,like Figure 1 As shown, the vehicle domain controller 100 includes: a control decision module 101, a wired communication module 102, a wireless communication module 103, a signal acquisition module 104, a speed control module 105 and a power drive module 106 arranged on the same circuit board, and the control decision module 101 is connected to the wired communication module 102, the wireless communication module 103, the signal acquisition module 104, the speed control module 105 and the power drive module 106 through on-board wiring.

[0045] The wired communication module 102 is connected to other controllers in the vehicle through an electrical wiring harness, the wireless communication module 103 is connected to the cloud platform for communication, the signal acquisition module 104 is connected to the control devices in the vehicle through an electrical wiring harness, the speed control module 105 is connected to the rotating devices in the vehicle through an electrical wiring harness, and the power drive module 106 is connected to the power devices in the vehicle through an electrical wiring harness.

[0046] The control decision module 101 , the wired communication module 102 , the wireless communication module 103 , the signal acquisition module 104 , the speed control module 105 and the power driving module 106 are arranged on the same circuit board.

[0047] The control decision module 101 has functions such as data calculation, data interaction, vehicle power on and off management, fault management, vehicle thermal management, network management, in-vehicle information interaction management, and vehicle-cloud information interaction management, and provides control decision command output for the overall operation of the vehicle.

[0048] The wired communication module 102 refers to an external communication module, which is connected to other controllers in the vehicle through an electrical wiring harness. Other controllers in the vehicle may include, for example, door and window controllers, wiper controllers, instrument controllers, headlight controllers, air conditioning controllers, transmission controllers, etc.

[0049] Among them, the control decision module 101 can control other controllers in the vehicle through the wired communication module 102, so that the devices in the vehicle perform corresponding operations, for example, controlling the door and window controller to open or close the doors and windows, controlling the wiper controller to start or stop the wipers, and controlling the instrument controller to display the instruments.

[0050] In some embodiments, the wired communication module 102 can be connected to the electrical wiring harness of other controllers in the vehicle through a connector. The wired communication module 102 may include a CAN bus communication interface, a 100M Ethernet bus, a Gigabit Ethernet communication bus, a USB communication interface bus, and a Lin communication interface bus, wherein the 100M Ethernet bus, the Gigabit Ethernet communication bus, the USB communication interface bus, and the Lin communication interface bus all belong to the electrical wiring harness.

[0051] Among them, the CAN bus communication interface is used to connect the vehicle BCAN, power PCAN, body SCAN, and intelligent driving ACAN. The vehicle BCAN is the body control bus, which can be used to connect the door and window controller, door and window controller, wiper controller, instrument controller, headlight controller, air conditioning controller, etc. The power PCAN is the powertrain bus, which can be used to connect the transmission controller, etc. The body SCAN is the body self-test bus, which can be used to connect the power take off (Power Take Off, PTO) controller, vehicle tarpaulin controller, etc. The intelligent driving ACAN is the intelligent driving advanced bus, which is used to connect the intelligent driving controller, and the intelligent driving controller is used to connect the intelligent driving sensors (such as lidar, camera, light sensor, etc.).

[0052] In some embodiments, the wired communication module 102 uses 12 CAN / CANFD interfaces, 2 1000Base T1 interfaces, 4 100Base T1 interfaces, and 1 100Base TX interface to perform high-speed data transmission based on various CAN and ETH interfaces connected to the vehicle control system, which improves the speed and efficiency of real-time dynamic information transmission of the vehicle compared to communication methods such as CAN bus in distributed architecture. At the same time, the 1000Base T1 interface can provide a high-speed communication interface with the autonomous driving controller for new energy commercial vehicles with high-level autonomous driving functions.

[0053] The wireless communication module 103 refers to a communication module, such as a 4G module. The wireless communication module 103 is connected to the cloud platform. The real-time operation data of the vehicle can be reported to the cloud platform through the wireless communication module 103. The wireless communication module 103 can also realize the functions of receiving remote control instructions (such as controlling the vehicle power on and off, air conditioning start and stop, remote door unlocking, etc. based on remote control instructions), vehicle operation positioning services (such as controlling the vehicle to start positioning services based on remote control instructions), remote upgrades (such as the cloud platform sends OTA upgrade packages to control the remote upgrade of the vehicle) and cloud platform interactive information encryption security technology. Among them, the remote control instruction can be triggered by the driver through the terminal device held by the driver, such as using a mobile phone to trigger the remote control instruction through an APP. In addition, it can also be triggered by a Bluetooth key.

[0054] It is worth mentioning that the wireless communication module 103 receives the remote control instruction, wakes up the regional control decision module 101 through the rising edge of IO hardware to output the control decision instruction, and then realizes gateway control, vehicle-cloud interaction, and whole vehicle control. Through the high-speed mutual transmission of signals within the vehicle domain controller, the control response time of the traditional distributed electrical architecture can be greatly improved.

[0055] Among them, OTA upgrade (Over-The-Air update) is a technology that uses wireless networks to download firmware updates, software upgrade packages and other technical means from the cloud to achieve vehicle upgrades and maintenance. Information encryption for cloud platform interactions refers to reporting the encrypted real-time vehicle operating data to the cloud platform. The wireless communication module 103 can also provide a functional interface for remote vehicle assisted driving functions to interact with the cloud platform.

[0056] It is worth mentioning that vehicle OTA technology can be used to achieve continuous vehicle upgrades without the need for users to go to the store to perform updates. It enables new energy commercial vehicles to perform high-reliability software iteration upgrades of vehicle electronic control software, realize software-defined vehicle data links, and achieve software and hardware decoupling and flexible upgrades.

[0057] In one application scenario, the driver sends a remote air-conditioning on command through the terminal, the control decision module 101 receives the command through the wireless communication module 103, and the control decision module 101 forwards the command to the air-conditioning controller through the wired communication module 102 to control the air-conditioning to turn on.

[0058] The signal acquisition module 104 refers to the regional sensor signal acquisition module, which is connected to the in-vehicle control devices through an electrical wiring harness, wherein the in-vehicle control devices (i.e., actuators) may include, for example, an accelerator pedal and a brake pedal. The accelerator pedal sensor signal and the brake pedal sensor signal may be directly sampled and processed through the signal acquisition module 104, thereby accurately identifying the driver's control during vehicle driving and ensuring driving safety.

[0059] The speed control module 105 refers to a pulse width modulation (PWM) speed control module, which is connected to the in-vehicle rotating device through an electrical wiring harness, wherein the in-vehicle rotating device (i.e., the in-vehicle cooling actuator) may include, for example, a cooling fan and a cooling water pump. The speed control module 105 may also be connected to the in-vehicle rotating device through an electrical wiring harness via an in-vehicle rotating controller, wherein, for example, the in-vehicle rotating controller may include a cooling fan controller and a cooling water pump controller. Thus, the thermal management control function of the whole vehicle is realized by accurately controlling the speed of the vehicle-mounted cooling actuator.

[0060] Among them, the PWM signal output by the speed control module 105 is used for speed control of the cooling fan or speed control of the cooling water pump (or water flow control). It is worth noting that the duty cycle and frequency of the PWM signal output by the speed control module 105 can be controlled by software instructions.

[0061] The power drive module 106 and the in-vehicle power device are connected through an electrical wiring harness, and the in-vehicle power device may include, for example, a vehicle relay, a solenoid valve, etc., so that the vehicle's control function of the power drive electrical device (i.e., the in-vehicle power device) is ensured through the power drive module 106. The power drive module 106 may be connected to the in-vehicle power device through a connector port using an electrical wiring harness.

[0062] In some embodiments, the power driver module 106 may have a total of 8-way compatible high-side driver and low-side driver circuit designs, and the rated output current of a single way may be 1.5A, which is sufficient to drive power devices such as automotive relays and solenoid valves.

[0063] It is understandable that the vehicle domain controller 100 can be installed at different physical locations of the vehicle according to the configuration of the vehicle cab. For example, when the vehicle is equipped with a cab, it can be installed in the physical area of ​​the cab, and when the vehicle is not equipped with a cab, it can be installed in the physical area of ​​the chassis frame. The vehicle can be, for example, a new energy commercial vehicle.

[0064] In this embodiment, the vehicle domain controller can realize the integration of software and hardware resources that can only be realized by three independent controllers of vehicle control, gateway control, and vehicle-cloud interaction functions under the traditional distributed vehicle electrical architecture, so as to integrate hardware resources into a set of hardware, reduce the number and cost of wiring harnesses, simplify assembly difficulty, and improve vehicle reliability. In addition, the use of the vehicle domain controller realizes the rapid expansion of the functions of the vehicle control system to meet the complex requirements of different powertrain forms, different operating conditions, and differentiated commercial vehicle configuration functions of new energy commercial vehicles. Among them, different powertrain forms include fuel cell power, interchangeable power battery packs, chassis fixed power battery packs, etc., so as to meet the vehicle use needs of different markets and consumers and realize functional integration and modular design.

[0065] Figure 2 Schematic diagram of the structure of the vehicle domain controller provided in the embodiment of the present application Figure 2 ,like Figure 2 As shown, in an optional embodiment, the vehicle domain controller 100 also includes: a data encryption and decryption module 107 arranged on the same circuit board, the data encryption and decryption module 107 is connected to the control decision module 101 through on-board wiring, and the data encryption and decryption module 107 is also connected to the wired communication module 102 and the wireless communication module 103 through on-board wiring.

[0066] The data encryption and decryption module 107 and the control decision module 101 , the wired communication module 102 , the wireless communication module 103 , the signal acquisition module 104 , the speed control module 105 and the power driving module 106 are arranged on the same circuit board.

[0067] Among them, the data encryption and decryption module 107 can provide the vehicle domain controller 100 with data encryption and decryption functions that comply with national encryption algorithm standards to achieve user identity authentication and encryption and decryption of in-vehicle and vehicle-cloud information interaction.

[0068] In one application scenario, the data encryption and decryption module 107 uses the RSA encryption algorithm to generate the public and private keys required for the vehicle information security digital certificate. The digital certificate contains information such as the vehicle identification number (VIN) and the public key. When the vehicle control system is connected to the Internet of Vehicles system, the control decision module 101 sends the vehicle's digital certificate to the cloud platform through the wireless communication module 103. After the cloud platform obtains the digital certificate, it uses the public key to verify the signature of the digital certificate and checks whether the vehicle VIN code is a legal vehicle. After the cloud platform verifies that the vehicle is legal, the control decision module 101 can control other controllers in the vehicle through the wired communication module 102 based on the received remote control instructions, so that the in-vehicle devices are turned on or off, etc.

[0069] In another application scenario, when the control decision module 101 sends the real-time operation data of the vehicle to the cloud platform through the wireless communication module 103, the data encryption and decryption module 107 uses the vehicle's private key to sign the data to ensure that the source of the data can be verified, and uses the public key of the recipient (such as the cloud platform) to encrypt the data to ensure the confidentiality of the data.

[0070] In another application scenario, when the control decision module 101 receives a remote encryption instruction through the wireless communication module 103 , the data encryption and decryption module 107 may also be used to decrypt the instruction.

[0071] In an optional implementation, the vehicle domain controller 100 further includes: a board-level power supply module 108, a signal power supply module 109, a storage module 110, and a clock module 111 arranged on the same circuit board;

[0072] The board-level power supply module 108 is connected to the control decision module 101, the wired communication module 102, the wireless communication module 103, the speed control module 105, the power driving module 106, the data encryption and decryption module 107, the storage module 110 and the clock module 111 through the on-board wiring;

[0073] The signal power supply module 109 , the storage module 110 , and the clock module 111 are respectively connected to the control decision module 101 through on-board wiring, and the signal power supply module 109 is also connected to the signal acquisition module 104 through on-board wiring.

[0074] Among them, the board-level power supply module 108 is used to provide working power to the control decision module 101, the wired communication module 102, the wireless communication module 103, the speed control module 105, the power drive module 106, the data encryption and decryption module 107, the storage module 110 and the clock module 111.

[0075] The board-level power supply module 108 can have a redundant power supply function, which can convert the 24V power supply of the vehicle battery or the board-level backup battery into a board-level power supply to ensure the normal operation of the modules that require low-voltage power supply. At the same time, the module has overvoltage, undervoltage, overcurrent, and overtemperature protection functions.

[0076] The signal power supply module 109 is used to provide working power to the signal acquisition module 104, for example, to power the accelerator pedal sensor and the brake pedal sensor, the power supply voltage is 5V, and the rated working current is not less than 50mA.

[0077] The signal power supply module 109 is connected to the control decision module 101 through on-board wiring, so as to control the start and stop of power supply of the signal power supply module 109 and power supply parameters through the control decision module 101 .

[0078] The storage module 110 refers to a storage medium module for data storage, which can be composed of 4G Byte DDR, 16G Byte EMMC and 16M Byte Flash, which are respectively used to execute Linux system operation, store system operation programs and backup programs, and can also implement program upgrades, program switching and program rollback strategies for A / B partitions. The application layer programs and operation data of the A53 type embedded chip running the Linux operating system in the control decision module 101 are stored, and the application programs, boot programs and operation data of the M7 type embedded chip running the RTOS operating system are stored.

[0079] The clock module 111 refers to a real-time clock (RTC) module, which is used to provide timing for the control decision module 101. The module can have a dual power supply design function, including obtaining power from the board-level power supply module 108 and the button battery of the clock module 111, thereby achieving an uninterrupted clock at the board level for up to 10 years, and a timing accuracy of 1s.

[0080] Figure 3 Schematic diagram of the structure of the vehicle domain controller provided in the embodiment of the present application Figure 3 ,like Figure 3 As shown, in an optional implementation, the control decision module 101 includes: a first processing chip 20 , a second processing chip 21 and a third processing chip 22 .

[0081] The control decision module 101 may be an automotive-grade multi-core heterogeneous chip, which mainly integrates a first processing chip 20 , a second processing chip 21 , and a third processing chip 22 . The first processing chip 20 and the third processing chip 22 may be M7 chips, and the second processing chip 21 may be an A53 chip.

[0082] The board-level power supply module 108 , the wired communication module 102 , the clock module 111 , the storage module 110 , and the data encryption / decryption module 107 are respectively connected to the first processing chip 20 through on-board wiring.

[0083] The first processing chip 20 is connected to the board-level power supply module 108, the wired communication module 102, the clock module 111, the storage module 110 and the data encryption and decryption module 107 through on-board wiring to realize the gateway control function. During the gateway control process, the first processing chip 20 can realize vehicle data interactive communication through the wired communication module 102. For example, the wired communication module 102 is connected to the instrument controller through the CAN\LIN\Eth communication line to control the display of the instrument. For another example, after the driver turns on the air conditioner through the central control screen (PAD) in the smart cockpit, the smart cockpit controller transmits the turn-on instruction to the control decision module 101 through the wired communication module 102, so that the control decision module 101 controls the air conditioning controller through the wired communication module 102 to start the air conditioning.

[0084] In one application scenario, the first processing chip 20 can also receive encrypted operating data of in-vehicle components sent by other controllers in the vehicle through the wired communication module 102 (obtained by encrypting the operating data), and decrypt the encrypted operating data through the data encryption and decryption module 107, thereby obtaining the operating data of the in-vehicle device to perform fault diagnosis on the in-vehicle component, thereby providing powerful diagnostic and protection functions, optimizing the network architecture and improving the safety and scalability of the entire vehicle.

[0085] In another application scenario, the first processing chip 20 can also receive OTA upgrade packages from other controllers in the vehicle through the wireless communication module 103 to perform OTA upgrades on other controllers in the vehicle, or the first processing chip 20 obtains motor operating parameters through the wired communication module 102 and the motor controller, and sends the motor operating parameters to the battery through the wired communication module 102 and the battery controller.

[0086] The board-level power supply module 108 , the wireless communication module 103 , the clock module 111 , the storage module 110 , and the data encryption / decryption module 107 are connected to the second processing chip 21 through on-board wiring.

[0087] The second processing chip 21 is connected to the board-level power supply module 108, the wireless communication module 103, the clock module 111, the storage module 110 and the data encryption and decryption module 107 through on-board wiring to realize the vehicle-cloud interaction function. During the vehicle-cloud interaction process, the second processing chip 21 can report the real-time operation data of the vehicle to the cloud platform through the wireless communication module 103, and can also realize remote control command reception, OTA upgrade package, local and remote diagnosis, and V2X intelligent collaboration supporting intelligent driving functions through the wireless communication module 103.

[0088] Among them, local diagnosis refers to the second processing chip 21 performing fault diagnosis on the in-vehicle components, and remote diagnosis refers to the second processing chip 21 reporting encrypted operation data to the cloud platform so that the cloud platform can perform fault diagnosis on the in-vehicle components. Vehicle-to-Everything (V2X) is a new generation of information and communication technology that realizes all-round connection and communication between vehicles and surrounding vehicles, people, traffic infrastructure and networks. V2X intelligent collaboration refers to collecting signals through intelligent driving sensors and sending sensor signals to the control decision module 101 through the intelligent driving controller and wired communication module 102.

[0089] In one application scenario, the data encryption and decryption module 107 can provide the vehicle domain controller 100 with data encryption and decryption functions that comply with national encryption algorithm standards to achieve user identity authentication and encryption and decryption of in-vehicle and vehicle-cloud information interaction.

[0090] The board-level power supply module 108 , the wired communication module 102 , the signal power supply module 109 , the signal acquisition module 104 , the speed control module 105 , the storage module 110 and the power driving module 106 are connected to the third processing chip 22 through on-board wiring.

[0091] The third processing chip 22 is connected to the board-level power supply module 108, the wired communication module 102, the signal power supply module 109, the signal acquisition module 104, the speed control module 105, the storage module 110 and the power drive module 106 through on-board wiring to realize the whole vehicle control function, so as to analyze the driver's intention to control the vehicle (accelerator or brake) when the whole vehicle domain controller is powered on, and can also identify the fault diagnosis and processing of the control components in the vehicle, the vehicle status, static charging mode management, vehicle charging and discharging energy management, vehicle network management, vehicle auxiliary machine control functions, etc.

[0092] In one application scenario, the third processing chip 22 obtains the sensor signal collected by the sensor signal acquisition module through the signal acquisition module 104, and analyzes the driver's intention to control the vehicle based on the sensor signal. It can also determine whether the vehicle is driving or braking and the gear position based on the sensor signal, and control the operation of the power devices in the vehicle through the power drive module 106.

[0093] In another application scenario, for static charging mode management, the charging pile is connected to the wired communication module 102, and the charging parameters such as charging time and charging voltage can be set through the third processing chip 22. For vehicle charging and discharging energy management, when the battery power is low, the third processing chip 22 receives the air conditioning start command from the central control screen (PAD) in the smart cockpit through the wired communication module 102, and the control decision module 101 does not control the start of the air conditioner. For vehicle network management, after the vehicle key is removed, the third processing chip 22 can control some other controllers in the car to power off through the wired communication module 102, such as controlling the door and window controller to keep the power on. For the vehicle auxiliary machine control function, when the battery temperature is too high, the third processing chip 22 controls the decision module 101 to control the speed of the cooling fan through the speed control module 105 and the cooling fan controller to dissipate the heat of the battery.

[0094] It is worth noting that the number of second processing chips 21 can be multiple, for example, 4 independent A53 chips running the Linux operating system. The control decision module 101 can also include: a fourth processing chip, which is a processing chip reserved for new energy commercial vehicles, and is used to realize the future expansion functions of new energy commercial vehicles, so that the control decision module 101 has scalability. In other words, the control decision module 101 can integrate 3 M7 chips that independently run the RTOS real-time operating system and 4 A53 chips that independently run the Linux operating system (the A53 chip that executes the vehicle-cloud interaction function is any one of the 4 chips, so that the remaining 4 chips are reserved for new energy commercial vehicles). Of course, the control decision module 101 can also include peripheral resistors, capacitors, clock crystal oscillators, board-level crystal oscillators and other electronic devices to ensure the normal operation of the system.

[0095] It is worth noting that the first processing chip 20 , the second processing chip 21 and the third processing chip 22 are connected via on-board wiring.

[0096] In this embodiment, the vehicle domain controller can centrally integrate the functions of the vehicle controller, gateway controller, and TBOX controller under the traditional distributed electronic and electrical architecture through the microcontroller chip equipped with rich computing resources, uniformly process data, reduce computing power deployment redundancy, and realize efficient operation of multi-core heterogeneous and same-hardware controller technology after resource integration. In addition, efficient decision-making of control functions is guaranteed.

[0097] Figure 4 A schematic diagram of the structure of a vehicle control system provided in an embodiment of the present application, such as Figure 5 As shown, the system includes: other in-vehicle controllers 200, in-vehicle rotating devices 300, in-vehicle control devices 400, in-vehicle power devices 500 and a vehicle domain controller 100.

[0098] The wired communication module 102 in the vehicle domain controller 100 and other controllers 200 in the vehicle are connected through an electrical wiring harness, the speed control module 105 in the vehicle domain controller 100 and the rotating device 300 in the vehicle are connected through an electrical wiring harness, the signal acquisition module 104 in the vehicle domain controller 100 and the in-vehicle control device 400 are connected through an electrical wiring harness, and the power drive module 106 in the vehicle domain controller 100 and the in-vehicle power device 500 are connected through an electrical wiring harness.

[0099] This embodiment also provides a new energy commercial vehicle, which at least includes the above-mentioned vehicle control system.

[0100] It is worth noting that the working state of the control decision module 101 includes a low power consumption state and a normal operating state. The switching between the two working states depends on the sleep mode and the wake-up mode. In the wake-up mode, the working state is a normal operating state, and in the sleep mode, the working state is a low power consumption state. The vehicle control method is described below in conjunction with the following embodiments.

[0101] Figure 5 Schematic diagram of the process of the vehicle control method provided in the embodiment of the present application Figure 1 The execution subject of this embodiment may be the first processing chip in the vehicle domain controller.

[0102] like Figure 5 As shown, the method includes:

[0103] S40: If a sleep event is monitored, the sleep interface of the second processing chip is called to put the second processing chip into a sleep state.

[0104] The sleep decision process is initiated by the first processing chip. If the first processing chip monitors the sleep event, it calls the sleep interface of the second processing chip to control the second processing chip to execute the sleep instruction (power off instruction) to close the information interaction state of the second processing chip, so that the second processing chip enters the sleep state. The first processing chip can be an M7 main core, and the second processing chip can be an A53 core.

[0105] It is worth noting that if the charging gun insertion wake-up source voltage parameter collected by the signal acquisition module is less than 1V, the key insertion wake-up source voltage parameter is less than 1V, and the CAN network management message of the wired communication module meets the preset sleep conditions, it is determined that the first processing chip has monitored the sleep event. Of course, the triggering of the sleep event includes but is not limited to the above examples. For details, please refer to the relevant description of the prior art.

[0106] S41, executing a setting operation of a first sleep bit, so that after the third processing chip monitors the first sleep bit, it calls a sleep interface of the third processing chip to enter a sleep state and executes a setting operation of a second sleep bit.

[0107] The first processing chip executes a setting operation of the first sleep bit to set the first sleep bit, which is a sleep indication bit of the first processing chip. The first sleep bit refers to enabling the sleep indication bit of the first processing chip, for example, setting the first sleep bit to 1, and setting the first sleep bit to 0 if not enabled.

[0108] After the third processing chip monitors the first sleep bit, the sleep interface of the third processing chip is called to execute the sleep instruction, so that the third processing chip enters the sleep state, and performs the setting operation of the second sleep bit, so that the second sleep bit is set, wherein the second sleep bit is the sleep indication bit of the third processing chip, and the second sleep bit is set to enable the sleep indication bit of the third processing chip. The third processing chip may be M7 sub-core 1.

[0109] In an optional implementation, the vehicle domain controller also includes: a fourth processing chip, wherein the fourth processing chip may be an M7 sub-core 2, and the fourth processing chip is a processing chip reserved for new energy commercial vehicles, and is used to realize future expansion functions of new energy commercial vehicles.

[0110] The above step S41, performing the setting operation of the first sleep bit, so that after the third processing chip monitors the first sleep bit, it calls the sleep interface of the third processing chip to enter the sleep state and performs the setting operation of the second sleep bit, includes:

[0111] The setting operation of the first sleep bit is executed, so that after the fourth processing chip monitors the first sleep bit, it calls the sleep interface of the fourth processing chip to enter the sleep state, and executes the setting operation of the fourth sleep bit. After the third processing chip monitors the fourth sleep bit, it calls the sleep interface of the third processing chip to enter the sleep state and executes the setting operation of the second sleep bit.

[0112] The first processing chip executes a setting operation of the first sleep bit to set the first sleep bit. After the fourth processing chip monitors the first sleep bit, it calls the sleep interface of the fourth processing chip to execute a sleep instruction to put the fourth processing chip into a sleep state, and executes a setting operation of the fourth sleep bit to set the fourth sleep bit. The fourth sleep bit is a sleep indication bit of the fourth processing chip. The fourth sleep position refers to enabling the sleep indication bit of the fourth processing chip.

[0113] After the third processing chip monitors the fourth sleep bit, it calls the sleep interface of the third processing chip to execute the sleep instruction, so that the third processing chip enters the sleep state, and executes the setting operation of the second sleep bit, so that the second sleep bit is set.

[0114] S42: After monitoring the second sleep bit, calling the sleep interface of the wireless communication module to make the wireless communication module enter the sleep state and perform the setting operation of the third sleep bit.

[0115] After the first processing chip monitors the second sleep bit, it calls the sleep interface of the wireless communication module to control the wireless communication module to execute the sleep instruction, so that the wireless communication module enters the sleep state and executes the setting operation of the third sleep bit, wherein the third sleep bit is the sleep indication bit of the wireless communication module, and the third sleep position refers to enabling the sleep indication bit of the wireless communication module.

[0116] S43: After the third sleep bit is detected, the sleep interface of the first processing chip is called to enter the sleep state.

[0117] After the first processing chip monitors the third sleep position, the sleep interface of the first processing chip is called to control the first processing chip to execute the sleep instruction, so that the first processing chip enters the sleep state. At this point, the board-level power-off of the vehicle domain controller is completed, and the power output of the signal power supply module can also be turned off to minimize the board-level power consumption when the vehicle enters the low-power state.

[0118] In this embodiment, for each processing chip in the vehicle domain controller, the first processing chip initiates a sleep decision process to minimize the board-level power consumption when the vehicle enters a low-power state, thereby realizing the sleep process management of the vehicle domain controller.

[0119] Figure 6 Schematic diagram of the process of the vehicle control method provided in the embodiment of the present application Figure 2 ,like Figure 6 As shown, the method also includes:

[0120] S50. If a wake-up event is detected through the wireless communication module, the setting operation of the first wake-up bit is executed, so that after the second processing chip detects the first wake-up bit, the board-level power supply module is controlled to supply power, and the first processing chip and the second processing chip enter the wake-up state, and after the third processing chip detects the first wake-up bit, it enters the wake-up state and executes the setting operation of the second wake-up bit.

[0121] If the first processing chip monitors a wake-up event through the wireless communication module, the first processing chip executes a setting operation of the first wake-up bit to set the first wake-up bit. The first wake-up bit is a wake-up indication bit of the first processing chip. The first wake-up bit refers to enabling the wake-up indication bit of the first processing chip. For example, the first wake-up bit is set to 1, and if it is not enabled, the first wake-up bit is set to 0.

[0122] After the second processing chip monitors the first wake-up bit, the power management integrated circuit (Power Management IC, PMIC) of the control board-level power supply module is awakened, and normal power supply is started, and the first processing chip and the second processing chip enter the awake state, and the application programs of the first processing chip and the second processing chip are respectively run normally.

[0123] After the third processing chip monitors the first wake-up bit, it enters the wake-up state and performs the setting operation of the second wake-up bit, so that the second wake-up bit is set and the application of the third processing chip is run normally. Among them, the second wake-up bit is the wake-up indication bit of the third processing chip, and the second wake-up position bit refers to the wake-up indication bit that enables the third processing chip.

[0124] Among them, the driver uses the terminal to send a remote wake-up command to the wireless communication module (that is, the SMS wake-up starts, the wireless communication module hardware interface wakes up, and the wake-up state is set). The first processing chip detects that the hardware interface of the wireless communication module is awakened (set), then it is determined that the first processing chip monitors the wake-up event through the wireless communication module, and the wake-up of the first processing chip starts, and the wake-up source comes from the hardware wake-up interface of the wireless communication module.

[0125] In an optional embodiment, the vehicle domain controller further includes: a fourth processing chip, and the setting operation of the second wake-up bit is used to enable the fourth processing chip to enter a wake-up state after monitoring the second wake-up bit and execute the setting operation of the third wake-up bit.

[0126] After the fourth processing chip monitors the second wake-up bit, it enters the wake-up state and executes the setting operation of the third wake-up bit, so that the third wake-up bit is set, and the application of the fourth processing chip is normally run, so that the board-level power-on of the vehicle domain control is completed, and the system enters and runs normally. Among them, the third wake-up bit is the wake-up indication bit of the fourth processing chip, and the third wake-up position bit refers to the wake-up indication bit that enables the fourth processing chip.

[0127] In this embodiment, for each processing chip in the vehicle domain controller, the first processing chip initiates the wake-up decision process, thereby realizing the wake-up process management of the vehicle domain controller.

[0128] An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a first processing chip, the above method is executed.

[0129] In the embodiment of the present application, the computer program can also execute other machine-readable instructions when run by the processor to execute other methods described in the embodiment. For the specific execution method steps and principles, please refer to the description of the embodiment, which will not be repeated here.

[0130] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and are not to be understood as indicating or implying relative importance.

[0131] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-mentioned embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application. They should all be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A vehicle domain controller, characterized in that: include: A control decision module, a wired communication module, a wireless communication module, a signal acquisition module, a speed control module and a power drive module are arranged on the same circuit board; The wired communication module is connected to other controllers in the vehicle through an electrical wiring harness, the wireless communication module is connected to the cloud platform for communication, the signal acquisition module is connected to the control device in the vehicle through an electrical wiring harness, the speed control module is connected to the rotating device in the vehicle through an electrical wiring harness, and the power drive module is connected to the power device in the vehicle through an electrical wiring harness; The vehicle domain controller further includes: a data encryption and decryption module disposed on the same circuit board, and the data encryption and decryption module is also connected to the wired communication module and the wireless communication module respectively through on-board wiring; The vehicle domain controller further includes: a board-level power supply module, a signal power supply module, a storage module and a clock module arranged on the same circuit board; The board-level power supply module is respectively connected to the wired communication module, the wireless communication module, the speed control module, the power driving module, the data encryption and decryption module, the storage module and the clock module through on-board wiring; The signal power supply module is also connected to the signal acquisition module through on-board wiring; The control decision module includes: a first processing chip, a second processing chip and a third processing chip; The board-level power supply module, the wired communication module, the clock module, the storage module and the data encryption and decryption module are respectively connected to the first processing chip through on-board wiring; The board-level power supply module, the wireless communication module, the clock module, the storage module and the data encryption and decryption module are connected to the second processing chip through on-board wiring; The board-level power supply module, the wired communication module, the signal power supply module, the signal acquisition module, the speed control module, the storage module and the power driving module are connected to the third processing chip through on-board wiring; The first processing chip is used to perform the following steps: If a sleep event is monitored, the sleep interface of the second processing chip is called to make the second processing chip enter a sleep state; the setting operation of the first sleep bit is executed, so that after the third processing chip monitors the first sleep bit, the sleep interface of the third processing chip is called to enter a sleep state and the setting operation of the second sleep bit is executed; after monitoring the second sleep bit, the sleep interface of the wireless communication module is called to make the wireless communication module enter a sleep state and the setting operation of the third sleep bit is executed; after monitoring the third sleep bit, the sleep interface of the first processing chip is called to enter a sleep state.

2. A vehicle control system, characterized in that: include: Other in-vehicle controllers, in-vehicle rotating devices, in-vehicle control devices, in-vehicle power devices, and the vehicle domain controller as claimed in claim 1; The wired communication module in the vehicle domain controller and other controllers in the vehicle are connected through an electrical wiring harness, the speed control module in the vehicle domain controller and the rotating devices in the vehicle are connected through an electrical wiring harness, the signal acquisition module in the vehicle domain controller and the control devices in the vehicle are connected through an electrical wiring harness, and the power drive module in the vehicle domain controller and the power devices in the vehicle are connected through an electrical wiring harness.

3. A new energy commercial vehicle, characterized in that: At least comprising the vehicle control system as claimed in claim 2.

4. A vehicle control method, characterized in that: The first processing chip applied to the vehicle domain controller of claim 1, the method comprising: If a sleep event is monitored, calling the sleep interface of the second processing chip to put the second processing chip into a sleep state; Performing a setting operation of the first sleep bit, so that after the third processing chip monitors the first sleep bit, the sleep interface of the third processing chip is called to enter the sleep state and perform the setting operation of the second sleep bit; After monitoring the second sleep bit, calling the sleep interface of the wireless communication module to make the wireless communication module enter the sleep state and perform the setting operation of the third sleep bit; After the third sleep bit is monitored, the sleep interface of the first processing chip is called to enter the sleep state.

5. The method according to claim 4, characterized in that The vehicle domain controller further includes: a fourth processing chip; The performing of the setting operation of the first sleep bit so that the third processing chip monitors the first sleep bit, calls the sleep interface of the third processing chip to enter the sleep state and performs the setting operation of the second sleep bit, includes: The setting operation of the first sleep bit is executed, so that after the fourth processing chip monitors the first sleep bit, it calls the sleep interface of the fourth processing chip to enter the sleep state, and executes the setting operation of the fourth sleep bit; after the third processing chip monitors the fourth sleep bit, it calls the sleep interface of the third processing chip to enter the sleep state and executes the setting operation of the second sleep bit.

6. The method according to claim 4, characterized in that The method further comprises: If a wake-up event is monitored through the wireless communication module, the setting operation of the first wake-up bit is executed, so that after the second processing chip monitors the first wake-up bit, the board-level power supply module is controlled to supply power, and the first processing chip and the second processing chip enter the wake-up state, and after the third processing chip monitors the first wake-up bit, it enters the wake-up state and executes the setting operation of the second wake-up bit.

7. The method according to claim 6, characterized in that The vehicle domain controller also includes: a fourth processing chip, and the setting operation of the second wake-up bit is used to enable the fourth processing chip to enter a wake-up state after monitoring the second wake-up bit and execute the setting operation of the third wake-up bit.

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