Function integrated controller compatible with engine and hybrid power control

Abstract

The invention discloses a function integrated controller compatible with engine and hybrid power control, relates to the field of energy and power development, and solves the technical problem that a single control system capable of realizing the control functions of a range extender and an engine does not exist at the present stage. The controller comprises all resource pins compatible with an engine controller and a range extender controller. IO / AD / PWM transmission interface signals between the range extender controller and the engine controller are processed through internal signals of the middle layer; and in the diagnosis process of the fault management system, the fault diagnosis signal of the RCU is accessed to the fault management system of the ECU, and internal self-diagnosis is executed. Control fusion of an engine control system and a new energy range extender control system is achieved.

Description

Technical Field

[0001] This invention relates to the field of energy and power development, and more specifically, to a functionally integrated controller compatible with engine and hybrid power control. Background Technology

[0002] Currently, the main way to improve the driving range of new energy vehicles is through range extenders, and the demand for range extenders is rising rapidly with the increase in the production volume of new energy vehicles. For example... Figure 1 As shown, the existing range extender electronic control system is mainly divided into: vehicle controller (VCU), range extender controller (range extender controller), drive motor controller (ISGCM), and engine controller (engine controller), which communicate with each other through messages.

[0003] Vehicle Control Unit (VCU): Primarily transmits high-voltage status, range extender start / stop commands, and required power generation. Range extender controller: Responsible for converting the power request from the VCU into the following two control modes: 1. FISG required speed + engine required torque. 2. FISG required torque + engine required speed.

[0004] ISGCM (Integrated Sequential Generator Controller): Responsible for controlling the generator.

[0005] 1. When the range extender controller's control command is in speed mode, the ISGCM completes closed-loop control of the commanded speed. 2. When the range extender controller's control command is in torque mode, the ISGCM completes torque closed-loop control.

[0006] Engine controller (Engine Controller): Responsible for controlling the engine; 1. Convert the torque control / speed control commands in TSC into fuel injection quantity and intake air quantity control; 2. When receiving the shutdown command from EBC, cut off the fuel circuit.

[0007] This distributed multi-controller architecture meets the requirements of vehicle domain control, but it also presents several risks: Multiple controllers are costly (including function development costs); controllers communicate only through messages, which poses a risk of insufficient responsiveness; the development rights of each controller are restricted by the respective controller's developer, which does not conform to the gradual self-development and autonomy of control systems.

[0008] Currently, there is no single control system in the industry that integrates the functions of the range extender controller and the engine controller. Instead, each controller uses a domain controller to control independent actuators such as the range extender controller, engine controller, and TCU through a VCU. The required signals are still transmitted between the controllers in the form of messages. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to provide a functionally integrated controller that is compatible with engine and hybrid power control, which addresses the shortcomings of the existing technology and solves the technical problem that there is currently no single control system that can satisfy the control functions of range extender and engine.

[0010] The present invention discloses a functional integrated controller compatible with engine and hybrid power control. This controller is compatible with all resource pins of the engine controller and the range extender controller. The IO / AD / PWM transmission interface signals between the range extender controller and the engine controller are processed through an internal signal processing layer. During the fault management system diagnosis process, the fault diagnosis signal of the range extender controller itself is connected to the fault management system of the engine controller to perform internal self-diagnosis.

[0011] As a further improvement, the resource pins include multiple pins for allocating vehicle-side resources of the engine controller and vehicle-side resources of the range extender controller, as well as vehicle ports and engine ports.

[0012] Furthermore, the 26 domain-end communication signals between the engine controller and the range extender controller are converted into internal signals. At the same time, the range extender controller function is triggered uniformly under a specific schedule, and the entire code of the range extender controller is scheduled through a 10ms scheduling trigger.

[0013] Furthermore, the controller also includes an application layer software architecture, which includes input components, CAN communication components, vehicle control components, output components, powertrain components, after-processing components, fault management components, engine control components, new energy control components, functional safety level 3 monitoring components, basic software and application layer software interface modules, and basic software modules.

[0014] Beneficial effects The advantages of this invention are: This invention achieves compatibility with all resource pins of the engine controller and the range extender controller; the IO / AD / PWM transmission interface signals between the range extender controller and the engine controller are processed internally through an intermediate layer; during the fault management system diagnosis process, the fault diagnosis signals of the range extender controller itself are connected to the fault management system of the engine controller to perform internal self-diagnosis, thereby integrating the relevant functions of the engine controller and the range extender controller into a single integrated controller, realizing the control fusion of the engine control system and the new energy range extender control system. Attached Figure Description

[0015] Figure 1 A simplified diagram of the existing range extender electronic control system; Figure 2A perspective view of the functional integrated controller structure for compatible engine and hybrid power control according to the present invention; Figure 3 This is a schematic diagram of the functionally integrated controller software method for compatible engine and hybrid power control according to the present invention. Figure 4 This is a schematic diagram of the hardware pinout of the functional integrated controller for compatible engine and hybrid power control of the present invention. Figure 5 This is a schematic diagram of the hardware performance scheme of the functional integrated controller for compatible engine and hybrid power control according to the present invention. Figure 6 This is a schematic diagram illustrating the responsibilities of the integrated controller application software for compatible engine and hybrid power control according to the present invention. Detailed Implementation

[0016] The present invention will be further described below with reference to embodiments, but this does not constitute any limitation on the present invention. Any limited modifications made by any person within the scope of the claims of the present invention are still within the scope of the claims of the present invention. See Figures 2-6 The present invention provides a functional integrated controller compatible with engine and hybrid power control, which integrates the functions of engine controller and range extender controller into a single functional integrated controller, providing low-cost, high-quality controller hardware and software.

[0017] The specific plan is as follows: like Figure 1 As shown, the hardware solution is compatible with all resource pins of the engine controller and range extender controller, as well as CAN communication requirements.

[0018] like Figure 2 As shown, a 168+168+48 bit connector combination scheme is adopted.

[0019] Engine port 168 pins: Engine controller engine end + HTCU (range extender controller).

[0020] 168-pin connector for vehicle: Engine controller (vehicle side) + HTCU (range extender controller).

[0021] Powertrain Port 48 (Optional): Reserved resources for engine controller.

[0022] like Figure 5As shown, the hardware performance specifications of this controller are a 300MHz main frequency, 6 processing cores, 16Mbyte Flash space, and 2.5Mbyte RAM storage space. It can perfectly support signal input (IO / AD / PWM), network interface (CAN / LIN), high and low side power output, and motor drive output, while also completing complex drives such as fuel injection.

[0023] like Figure 3 As shown, the software solution is to treat the range extender controller and engine controller as separate software units and integrate them into a single controller. The controller communication between the range extender controller and the engine controller is upgraded to signal transmission within a single controller.

[0024] The supporting software for the hardware is designed to meet the following requirements: Supports XCP / CCP protocol calibration and full address calibration schemes. Supports J1939 communication protocol and AutoSar's communication COM architecture; supports Yuchai-defined standard messages, ID calibrability, communication fault detection, and custom messages. Supports 4 / 6 cylinders and complex drives (including fuel injection, phase, and urea nozzle signal synchronization) driven by non-intelligent urea pumps. Supports enterprise standard flashing procedures, ISO14229 / ISO27145 / ISO15765 diagnostic protocols, and related diagnostic services. Supports EOL partitioning and flashing schemes. Supports defined hardware faults. Supports application layer and underlying RTE interface schemes. Supports underlying A2L and application layer merging and address update functions. Supports EEPROM storage space and storage strategies. The RTOS meets the application layer's periodic task scheduling, power-on / off control, and initialization logic.

[0025] Application software solution: The software code of the range extender controller / engine controller is embedded into the integrated controller. The IO / AD / PWM transmission interface signals (implemented via messages) between the range extender controller and the engine controller are processed by an intermediate layer as intermediate variables, totaling 26. During the fault management system diagnostic process, the DDRC diagnostic time of the range extender controller is cleared to 0, and it is connected to the engine controller's fault management system as a soft fault. The entire code scheduling of the range extender controller is implemented using a 10ms scheduling trigger. The application software architecture diagram is as follows. Figure 2 As shown.

[0026] like Figure 6 As shown below, the application layer software architecture design is detailed and divided into 10 major modules. This includes the application layer software architecture, which comprises: Input component: Converts raw sensor signals into physical values ​​and performs diagnostics.

[0027] CAN communication component: responsible for all CAN communication functions of the system.

[0028] Vehicle control components: realize the functional requirements of the whole vehicle and calculate torque.

[0029] Output component: Responsible for all output functions of the system.

[0030] Transmission system components: enable transmission system-related functions and torque calculation.

[0031] Post-processing components: Implement DOC, DPF, and SCR system control. Fault Management Component: Implements fault diagnosis, fault management, and regulatory certification logic. Engine control components: enable system control of engine fuel, torque, etc. New energy control components: enable range extender function control Functional safety level 3 monitoring component: Implements functional safety related logic Basic software and application layer software interface module: responsible for transmitting information between the ASW layer and the NSW layer.

[0032] Basic software module: responsible for transmitting information between the hardware layer and the RTE layer.

[0033] Test verification results: After internal testing of the software and hardware, a professional certification body was commissioned to evaluate the version of the software. The engine and range extender sub-functions involved all passed the test, and the functions responded faster.

[0034] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention, and these will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A functionally integrated controller compatible with engine and hybrid power control, characterized in that, This controller is compatible with all resource pins of the engine controller and the range extender controller; the IO / AD / PWM transmission interface signals between the range extender controller and the engine controller are processed through the internal signal processing of the intermediate layer. During the fault management system diagnosis process, the fault diagnosis signal of the range extender controller itself is connected to the fault management system of the engine controller to perform internal self-diagnosis.

2. The functionally integrated controller compatible with engine and hybrid power control according to claim 1, characterized in that, The resource pins include multiple pins for allocating vehicle-side resources of the engine controller and vehicle-side resources of the range extender controller, as well as vehicle-side ports and engine ports.

3. The functionally integrated controller compatible with engine and hybrid power control according to claim 1, characterized in that, The 26 domain-end communication signals between the engine controller and the range extender controller are converted into internal signals. At the same time, the range extender controller function is triggered uniformly under a specific schedule, and the entire code of the range extender controller is scheduled through a 10ms scheduling trigger.

4. The functionally integrated controller compatible with engine and hybrid power control according to claim 1, characterized in that, The controller also includes an application layer software architecture, which includes input components, CAN communication components, vehicle control components, output components, powertrain components, after-processing components, fault management components, engine control components, new energy control components, functional safety level 3 monitoring components, basic software and application layer software interface modules, and basic software modules.

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