Multifunctional wake-up circuit, electronic control system and vehicle
By designing a multi-functional wake-up circuit that integrates ignition, communication, and switch wake-up modules, the compatibility issues of wake-up functions in automotive electronic controllers are resolved, achieving multi-functional wake-up and redundant design to meet different needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-17
- Publication Date
- 2026-03-10
AI Technical Summary
The wake-up circuits of existing automotive electronic controllers lack multi-functional compatibility integration, resulting in conflicts between wake-up functions and ineffective compatibility.
Design a multi-functional wake-up circuit, including an ignition wake-up module, a communication wake-up module, and a switch wake-up module. Different wake-up signals are used to control the power supply of the main controller, supporting individual and combined wake-up modes, and avoiding false wake-ups and redundant operations.
It achieves compatible integration of multiple wake-up functions, avoids conflicts between wake-up calls, ensures orderly wake-up, and supports circuit expansion and redundant design to meet different needs.
Smart Images
Figure CN116639069B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle industry technology, and in particular to a multifunctional wake-up circuit, electronic control system, and vehicle. Background Technology
[0002] For automotive electronic control systems, the power module needs to be enabled to ensure the operation of the entire controller, and in most cases, more than one enable signal is required. For example, the power enable signal of the ignition signal wakes up the entire controller, as well as CAN (Controller Area Network) message signals and EPB (Electrical-Park-Brake) switch signals. It can be seen that the use of wake-up circuits in automotive electronic controllers is becoming increasingly common.
[0003] In related technologies, controller solutions mostly have a single wake-up function, often requiring multiple different circuits to perform different function wake-up.
[0004] However, this solution lacks integration of multiple wake-ups, or there are conflicts between multiple wake-ups, making it difficult to achieve a compatible design, which urgently needs to be addressed. Summary of the Invention
[0005] This application provides a multi-functional wake-up circuit, an electronic control system, and a vehicle to solve the problem that current controller solutions cannot effectively integrate multiple wake-up functions, thereby achieving multi-functional wake-up of the circuit.
[0006] To achieve the above objectives, a first aspect of this application provides a multifunctional wake-up circuit, comprising:
[0007] The ignition wake-up module, communication wake-up module, and switch wake-up module are connected to the power module, among which,
[0008] The ignition wake-up module is used to output an enable signal to the power module when a manual ignition signal is received, so that the power module supplies power to the main controller, and the main controller performs the action corresponding to the manual ignition signal.
[0009] The communication wake-up module is used to wake up the power module via a CAN message when the CAN bus of the controller local area network recognizes the wake-up signal, so that the power module can supply power to the main controller and enable the main controller to perform the action corresponding to the wake-up signal.
[0010] The switch wake-up module is used to output a corresponding high-level signal through a resistor network when the wake-up switch is triggered, so as to power the main controller through the corresponding high-level signal, so that the main controller performs the action corresponding to the corresponding high-level signal.
[0011] According to one embodiment of this application, the ignition wake-up module includes:
[0012] An ignition switch, one end of which is connected to a 12V power supply;
[0013] A first diode, the anode of which is connected to the other end of the ignition switch;
[0014] The second diode has its anode connected to the cathode of the first diode, and its cathode is connected to the power module.
[0015] According to one embodiment of this application, the ignition wake-up module further includes:
[0016] The first resistor has one end connected to the anode of the first diode and the other end grounded.
[0017] The second resistor has one end connected to the anode of the second diode and the other end grounded.
[0018] The third resistor has one end connected to the cathode of the second diode and the other end grounded.
[0019] According to one embodiment of this application, the communication wake-up module includes:
[0020] A wake-up processor is connected to the CAN bus, the power module, and the main controller.
[0021] The third diode has its anode connected to the wake-up processor and its cathode connected to the power module.
[0022] According to one embodiment of this application, the switch wake-up module is an electronic parking brake (EPB) switch.
[0023] According to one embodiment of this application, the above-described multi-functional wake-up circuit further includes:
[0024] The fourth diode has its anode connected to the main controller and its cathode connected to the cathode of the first diode.
[0025] According to one embodiment of this application, the wake-up signal includes a high-level signal or a low-level signal.
[0026] According to one embodiment of this application, the above-described multi-functional wake-up circuit further includes:
[0027] An adjustment component is used to adjust the wake-up mode of the main controller, wherein the wake-up mode includes a single wake-up mode and a combined wake-up mode.
[0028] According to the multi-functional wake-up circuit proposed in this application, when the ignition wake-up module receives a manual ignition signal, it outputs an enable signal to the power module to supply power to the main controller, causing the main controller to perform the action corresponding to the manual ignition signal. When the communication wake-up module recognizes a wake-up signal on the CAN bus, it wakes up the power module to supply power to the main controller, causing the main controller to perform the action corresponding to the wake-up signal. When the switch wake-up module is triggered, the corresponding high-level signal output by the resistor network supplies power to the main controller, causing the main controller to perform the action corresponding to the corresponding high-level signal. This solves the problem that current controller solutions cannot effectively integrate multiple wake-up functions, thus achieving multi-functional wake-up of the circuit.
[0029] To achieve the above objectives, a second aspect of this application provides an electronic control system that includes the aforementioned multifunctional wake-up circuit.
[0030] To achieve the above objectives, a third aspect of this application provides a vehicle that includes the aforementioned electronic control system.
[0031] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0032] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:
[0033] Figure 1 This is a block diagram of a multifunctional wake-up circuit according to an embodiment of this application;
[0034] Figure 2 This is a schematic diagram of the overall circuit topology for a multi-functional wake-up function according to an embodiment of this application. Detailed Implementation
[0035] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.
[0036] The following description, with reference to the accompanying drawings, describes a multi-functional wake-up circuit, electronic control system, and vehicle according to embodiments of this application. First, the multi-functional wake-up circuit according to embodiments of this application will be described with reference to the accompanying drawings.
[0037] Figure 1 This is a block diagram of a multifunctional wake-up circuit provided in an embodiment of this application.
[0038] like Figure 1 As shown, the multi-functional wake-up circuit 10 includes: an ignition wake-up module 200, a communication wake-up module 300, and a switch wake-up module 400, all connected to the power module 100.
[0039] The ignition wake-up module 200 outputs an enable signal to the power module 100 when a manual ignition signal is received, so that the power module 100 supplies power to the main controller, enabling the main controller to perform the action corresponding to the manual ignition signal. The communication wake-up module 300 wakes up the power module 100 via a CAN message when a wake-up signal is detected on the controller's local area network bus (CAN bus), so that the power module 100 supplies power to the main controller, enabling the main controller to perform the action corresponding to the wake-up signal. The switch wake-up module 400 outputs a corresponding high-level signal through a resistor network when the wake-up switch is triggered, so that the corresponding high-level signal supplies power to the main controller, enabling the main controller to perform the action corresponding to the corresponding high-level signal.
[0040] In some embodiments, the wake-up signal includes a high-level signal or a low-level signal.
[0041] Furthermore, in some embodiments, the ignition wake-up module 200 includes: an ignition switch, a first diode (e.g., ... Figure 2 D1), the second diode (such as D1), and the second diode (such as D1) Figure 2 D2), the first resistor (such as D2), Figure 2 R1), the second resistor (such as Figure 2 R2) and the third resistor (such as Figure 2 R3), wherein one end of the ignition switch is connected to a 12V power supply; the anode of the first diode is connected to the other end of the ignition switch; the anode of the second diode is connected to the cathode of the first diode, and the cathode of the second diode is connected to the power module; one end of the first resistor is connected to the anode of the first diode, and the other end of the first resistor is grounded; one end of the second resistor is connected to the anode of the second diode, and the other end of the second resistor is grounded; one end of the third resistor is connected to the cathode of the second diode, and the other end of the third resistor is grounded.
[0042] Specifically, such as Figure 2 As shown, the ignition wake-up module 200 includes an ignition switch connected to a 12V power supply. When a manual ignition signal is received, the circuit at the Uz switch outputs an enable signal, which enables the power module 100 through the first diode and the second diode. That is, the power module 100 is used to power the main controller, thereby realizing the wake-up of the entire board.
[0043] Furthermore, in some embodiments, the communication wake-up module 300 includes: a wake-up processor and a third diode (e.g., Figure 2 The third diode (D3) is connected to the CAN bus, the power module 100, and the main controller, respectively. The anode of the third diode is connected to the wake-up processor, and the cathode of the third diode is connected to the power module.
[0044] Specifically, such as Figure 2 As shown, this embodiment of the application utilizes CAN messages and employs a wake-up processor (such as...). Figure 2 The CAN chip enables communication wake-up. The wake-up processor is connected to the power module 100. It identifies the high or low level signal on the bus to realize the high or low configuration of the output INH, and enables the power module 100 through the third diode. That is, the power module 100 is used to power the main controller, thereby realizing the wake-up of the whole board.
[0045] Furthermore, in some embodiments, the switch wake-up module 400 is the electronic parking brake (EPB) switch.
[0046] Specifically, such as Figure 2 As shown, the switch wake-up module 400 in this embodiment refers to the EPB switch. The EPB switch is directly connected to the power module 100. When the driver operates the EPB switch, the resistor network will output a corresponding high-level signal. The main controller can be powered through the corresponding high-level signal, thereby realizing the wake-up of the entire board.
[0047] It should be noted that the multi-functional wake-up circuit proposed in this application embodiment can also avoid false wake-ups. The MCU (Microcontroller Unit) is connected to each wake-up source. When a false wake-up occurs, redundant operations can be performed, and the algorithm can be updated within the MCU's internal processing. For example, the three wake-up functions mentioned above—ignition, communication, and power switch—can be activated with [1,0,0], [1,1,0], or [1,1,1], thus achieving configurable wake-up mode operation.
[0048] Furthermore, in some embodiments, the aforementioned multi-functional wake-up circuit 10 further includes: a fourth diode (such as... Figure 2 The fourth diode (D4) and the adjustment component are provided, wherein the anode of the fourth diode is connected to the main controller and the cathode of the fourth diode is connected to the cathode of the first diode; the adjustment component is used to adjust the wake-up mode of the main controller, wherein the wake-up mode includes a single wake-up mode and a combined wake-up mode.
[0049] Since wake-up modes include individual wake-up modes and combined wake-up modes, the embodiments of this application have designed signal logic based on compatible multi-functional wake-up, which can avoid conflicts between multiple wake-up modes, thereby achieving orderly wake-up.
[0050] It is understood that the multi-functional wake-up circuit proposed in this application can not only meet different needs, but also support circuit expansion and optimization. When additional wake-up functions are required, a compatible design can be achieved by directly adding diodes and selection circuits. Furthermore, when other functions fail, the current circuit's enabling function can still be guaranteed, achieving multi-dimensional redundancy.
[0051] According to the multi-functional wake-up circuit proposed in this application, when the ignition wake-up module receives a manual ignition signal, it outputs an enable signal to the power module to supply power to the main controller, causing the main controller to perform the action corresponding to the manual ignition signal. When the communication wake-up module recognizes a wake-up signal on the CAN bus, it wakes up the power module to supply power to the main controller, causing the main controller to perform the action corresponding to the wake-up signal. When the switch wake-up module is triggered, the corresponding high-level signal output by the resistor network supplies power to the main controller, causing the main controller to perform the action corresponding to the corresponding high-level signal. This solves the problem that current controller solutions cannot effectively integrate multiple wake-up functions, thus achieving multi-functional wake-up of the circuit.
[0052] Secondly, embodiments of this application provide an electronic control system, which includes the aforementioned multi-functional wake-up circuit.
[0053] The electronic control system proposed in the embodiments of this application solves the problem that the current controller solution cannot effectively integrate multiple wake-up functions, thereby realizing the multi-functional wake-up of the circuit.
[0054] This application also provides a vehicle that includes the above-described electronic control system.
[0055] The vehicle proposed in the embodiments of this application solves the problem that the current controller solution cannot effectively integrate multiple wake-up functions, thereby realizing multi-functional wake-up of the circuit through the above-described electronic control system.
[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0058] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A multi-function wake-up circuit, comprising: Comprising: An ignition wake-up module, a communication wake-up module, a switch wake-up module and a fourth diode connected to the power module, wherein, The ignition wake-up module is configured to output an enable signal to the power module to power the main controller through the power module when a manual ignition signal is received, so that the main controller performs an action corresponding to the manual ignition signal; The communication wake-up module is configured to wake up the power module through a CAN message when a wake-up signal is identified on a controller area network bus (CAN bus), so that the main controller is powered by the power module and performs an action corresponding to the wake-up signal; The switch wake-up module is configured to output a corresponding high-level signal through a resistance network when a wake-up switch is triggered, so that the main controller is powered by the corresponding high-level signal and performs an action corresponding to the corresponding high-level signal; The ignition wake-up module comprises an ignition switch, a first diode, a second diode, a first resistor, a second resistor and a third resistor, wherein one end of the ignition switch is connected to a 12V power supply, the anode of the first diode is connected to the other end of the ignition switch, the anode of the second diode is connected to the cathode of the first diode, the cathode of the second diode is connected to the power module, one end of the first resistor is connected to the anode of the first diode, the other end of the first resistor is grounded, one end of the second resistor is connected to the anode of the second diode, the other end of the second resistor is grounded, one end of the third resistor is connected to the cathode of the second diode, and the other end of the third resistor is grounded; The communication wake-up module comprises a wake-up processor and a third diode, wherein the wake-up processor is connected to the CAN bus, the power module and the main controller respectively, the anode of the third diode is connected to the wake-up processor, and the cathode of the third diode is connected to the power module; The anode of the fourth diode is connected to the main controller, and the cathode of the fourth diode is connected to the cathode of the first diode.
2. The multi-function wake-up circuit of claim 1, wherein, The switch wake-up module is an electronic parking brake system (EPB) switch.
3. The multi-function wake-up circuit of claim 1, wherein, The wake-up signal comprises a high-level signal or a low-level signal.
4. The multi-function wake-up circuit of claim 1, wherein, Further comprising: An adjustment assembly for adjusting the wake-up mode of the main controller, wherein the wake-up mode comprises a separate wake-up mode and a combined wake-up mode.
5. An electronic control system characterized by comprising: Comprising: The multifunctional wake-up circuit according to any one of claims 1-4.
6. A vehicle characterized by comprising: Comprising: The electronic control system according to claim 5.
Citation Information
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