Vehicle control circuit, method for controlling vehicle control circuit, and vehicle

Abstract

The embodiment of the invention provides a control circuit of a vehicle, a control method of the control circuit of the vehicle and the vehicle, and the method comprises a switch module which is used for generating a control signal for a vehicle function; the display module is connected with the switch module and is used for carrying out safety detection on the control signal; the connector is connected with the display module and used for transmitting the control signal to a vehicle controller through a hard wire or transmitting the control signal to the vehicle controller through a vehicle network according to the signal type of the control signal passing the safety detection, and the signal type is a hard wire signal type or a network signal type; and the vehicle controller is connected with the connector and used for controlling vehicle functions based on the control signal. The technical problem that the wiring complexity is high when vehicle functions are controlled through entity keys is solved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more specifically, to a vehicle control circuit, a control method for the vehicle control circuit, and a vehicle. Background Technology

[0002] With the continuous development of vehicle technology, the central control display screen is not only an information display window but also integrates various control functions, aiming to enhance the interaction between the driver and the vehicle's electronic systems. However, due to the limitations of the central control display screen, the touch buttons used for the aforementioned adjustments and controls are relatively limited and lack corresponding tactile feedback, making it difficult for the driver to obtain feedback during operation, thereby increasing the possibility of misoperation and affecting the customer's user experience.

[0003] In related technologies, physical buttons are also used to control vehicle functions. While this provides an intuitive operating experience, these physical buttons usually require separate wiring harnesses to connect to the vehicle's central control system in order to transmit control signals and control the corresponding vehicle functions, which increases the complexity of the vehicle's internal wiring.

[0004] There is currently no good solution to the technical problem of high wiring complexity in controlling vehicle functions via physical buttons. Summary of the Invention

[0005] This application provides a vehicle control circuit, a control method for the vehicle control circuit, and a vehicle, to at least solve the technical problem of high wiring complexity in controlling vehicle functions via physical buttons.

[0006] According to one aspect of the embodiments of this application, a vehicle control circuit is provided, comprising: a switch module for generating control signals for vehicle functions; a display module connected to the switch module for performing security detection on the control signals; a connector connected to the display module for transmitting the control signals to a vehicle controller via hardwired transmission, or transmitting the control signals to a vehicle controller via a vehicle network, depending on the signal type of the control signals that have passed the security detection, wherein the signal type is a hardwired signal type or a network signal type; and a vehicle controller connected to the connector for controlling vehicle functions based on the control signals.

[0007] Optionally, the switch module includes a first spring pin connector, and the display module includes a second spring pin connector. The switch module and the display module are connected via the first spring pin connector and the second spring pin connector.

[0008] Optionally, the first spring pin connector includes a plurality of first pins, and the second spring pin connector includes a plurality of second pins, wherein the first pins and second pins of the same pin type are connected.

[0009] Optionally, the control circuit further includes: a power supply module connected to a power pin in the second spring pin connector for transmitting output current to the display module; and a power pin in the second spring pin connector connected to a power pin in the first spring pin connector for transmitting output current to the switching module.

[0010] Optionally, the control circuit further includes a short-circuit protection circuit, one end of which is connected to the power module and the other end of which is connected to the power pin in the second spring pin connector, for safe detection of the output current.

[0011] Optionally, the control circuit further includes a diode, the input of which is connected to the output of the power module, and the output of which is connected to the input of the short-circuit protection circuit, for controlling the output current to flow in one direction.

[0012] According to another aspect of the embodiments of this application, a control method for a vehicle control circuit is also provided. This method is applied to the control circuit in the embodiments of this application. The method includes: in response to a trigger operation on a switch module, controlling the switch module to generate a control signal; transmitting the control signal to a display module, wherein the display module is used to perform security detection on the control signal; in response to the control signal passing the security detection, transmitting the control signal that has passed the security detection to a connector; in response to the control signal being a hard-wired signal type, controlling the connector to transmit the control signal to a vehicle controller via a hard wire, or, in response to the control signal being a network signal type, controlling the connector to transmit the control signal to the vehicle controller via a vehicle network.

[0013] Optionally, during the control signal transmission process, the method further includes: in response to detecting a current overload in the control circuit, controlling the short-circuit protection circuit to disconnect the connection between the power module and the second spring pin connector.

[0014] According to another aspect of the embodiments of this application, a control device for a vehicle control circuit is also provided. This device is applied to the control circuit in the embodiments of this application. The device includes: a first control unit, configured to control a switch module to generate a control signal in response to a trigger operation on the switch module; a first transmission unit, configured to transmit the control signal to a display module, wherein the display module is used to perform security detection on the control signal; a second transmission unit, configured to transmit the control signal that has passed the security detection to a connector in response to the control signal passing the security detection; and a second control unit, configured to control the connector to transmit the control signal to a vehicle controller via a hardwired connection in response to the control signal being a hardwired signal type, or to control the connector to transmit the control signal to the vehicle controller via a vehicle network in response to the control signal being a network signal type.

[0015] According to another aspect of the embodiments of this application, a vehicle is also provided, including: a memory storing an executable program; and a processor for running the program, wherein the program executes the methods in various embodiments of this application when it runs.

[0016] According to another aspect of the embodiments of this application, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored executable program, wherein, when the executable program is running, it controls the device where the computer-readable storage medium is located to perform the methods of various embodiments of this application.

[0017] According to another aspect of the embodiments of this application, a computer program product is also provided, including a computer program that, when executed by a processor, implements the methods of various embodiments of this application.

[0018] According to another aspect of the embodiments of this application, a computer program product is also provided, including a non-volatile computer-readable storage medium storing a computer program that, when executed by a processor, implements the methods in various embodiments of this application.

[0019] According to another aspect of the embodiments of this application, a computer program is also provided, which, when executed by a processor, implements the methods of the various embodiments of this application.

[0020] In this embodiment, a vehicle control circuit is provided. The control circuit includes a switch module for generating control signals for vehicle functions; a display module connected to the switch module for performing safety checks on the control signals; a connector connected to the display module for transmitting the control signals to the vehicle controller via hard wiring, or via a vehicle network, depending on the signal type of the control signals that pass the safety check, where the signal type is either a hard-wired signal or a network signal; and a vehicle controller connected to the connector for controlling vehicle functions based on the control signals. That is, in this embodiment, after the switch module generates the control signals for vehicle functions, the control signals can be transmitted to the display module for safety checks. Control signals that pass the safety check are then transmitted to the vehicle controller via the connector. Control signals for hard-wired signals are directly transmitted to the vehicle controller via hard wiring, while control signals for network signals are directly transmitted to the vehicle controller via the vehicle network. This avoids the safety hazards and complexity associated with deploying additional long wiring harnesses, significantly reduces the use of physical wiring harnesses, and thus reduces the wiring complexity of the vehicle, thereby solving the technical problem of high wiring complexity when controlling vehicle functions via physical buttons. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 This is a schematic diagram of a vehicle control circuit according to an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the connection between a first spring pin connector and a second spring pin connector according to an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the connection between a first spring pin connector and a second spring pin connector according to an embodiment of this application;

[0025] Figure 4 This is a connection diagram of a power module according to an embodiment of this application;

[0026] Figure 5 This is a schematic diagram of a short-circuit protection connection according to an embodiment of this application;

[0027] Figure 6 This is a schematic diagram of a diode connection according to an embodiment of this application;

[0028] Figure 7 This is a flowchart of a control method for a vehicle control circuit according to an embodiment of this application;

[0029] Figure 8 This is a schematic diagram of a spring pin connection interface circuit according to an embodiment of this application;

[0030] Figure 9 This is a schematic diagram of a control circuit for controlling piano key switches using a central control display screen, according to an embodiment of this application.

[0031] Figure 10 This is a schematic diagram of a control device for a vehicle control circuit according to an embodiment of this application. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] According to an embodiment of this application, a vehicle control circuit is provided. Figure 1 This is a schematic diagram of a vehicle control circuit according to an embodiment of this application, such as... Figure 1 As shown, the vehicle's control circuit 100 includes: a switch module 101, a display module 102, a connector 103, and a vehicle controller 104.

[0035] Switch module 101 is used to generate control signals for vehicle functions.

[0036] In this embodiment, the aforementioned switch module can be a piano key switch module, which is a physical switch design, unlike the touch buttons integrated in traditional central control displays. The piano key switch module aims to provide a more intuitive and tactile user operation method, thereby improving the user experience of vehicle function control.

[0037] Optionally, the switch module includes multiple buttons, each corresponding to a specific vehicle function. Examples include audio control, air conditioning adjustment, and emergency alarm functions. When a user presses a piano key, the switch module generates a control signal associated with that key. This control signal contains crucial information required for vehicle function control, such as user commands and function codes.

[0038] Optionally, the physical button design of the piano key switch module provides users with direct tactile feedback, making operation more intuitive and enhancing the sense of confirmation. During driving, the tactile feedback of these physical buttons reduces the driver's guesswork regarding successful operation, improves operational accuracy, and thus optimizes the overall vehicle function control experience.

[0039] The display module 102 is connected to the switch module and is used to perform safety detection on the control signal.

[0040] In this embodiment, the display module can be a central control display module, which is connected to the piano key switch module. When the user operates the piano keys in the switch module, the switch module generates corresponding control signals. These control signals are first captured by the display module for subsequent safety detection and transmission.

[0041] Optionally, upon receiving a control signal, the display module processes the signal using its built-in hardware circuitry to detect potential equipment damage or signal errors caused by reverse power connection or short circuit in the control circuitry. This hardware circuitry can be a short-circuit protection circuit deployed on the display module's printed circuit board. If the detection results indicate everything is normal, the display module will transmit the control signal to the body controller or vehicle network via the central control screen connector. If the detection results indicate an abnormality in the control circuitry, the short-circuit protection circuitry will respond immediately, for example, by using a diode to block reverse current or by using a circuit breaker to disconnect the problematic signal path to prevent potential damage.

[0042] Optionally, the display module participates in the signal safety processing through integrated hardware circuitry (e.g., short-circuit protection). Once a control signal is generated by the piano key switch, it enters the display module, which not only receives the control signal but also serves as the first line of defense for safety checks during signal transmission. This comprehensive processing method ensures that the control signal generated by the user's operation of the physical piano key switch receives sufficient safety detection and protection before reaching the vehicle controller, thereby improving the stability and safety of the entire control circuit.

[0043] Connector 103 connects to the display module and is used to transmit the control signal to the vehicle controller via a hard wire or via the vehicle network, depending on the signal type of the control signal that has passed the safety detection.

[0044] In this embodiment, the connector can be a central control screen connector, which is located between the display module and other vehicle control systems (such as the body controller and vehicle network), acting as a bridge for signal transmission. Its core function is to determine the transmission path of the control signal based on the signal type of the control signal that has passed safety testing, ensuring that the signal can reach its destination accurately and safely.

[0045] Optionally, the connector can recognize two different types of control signals: hard-wired signals and network signals. Hard-wired signals can include high-urgency control signals, such as hazard warning signals. Because these signals are of high urgency, they can be transmitted directly via hardwire to ensure timely reception by the vehicle controller. Network signals can include lower-urgency control signals, such as multimedia control signals. These signals do not affect vehicle safety and can therefore be transmitted via the vehicle network, reducing the vehicle's hardwire load.

[0046] Optionally, when the piano key switch in the switch module is activated, especially when used for the emergency alarm function, the generated control signal is a hard-wired signal. This type of signal does not require complex network protocol support and can be transmitted directly through physical wiring, making it more immediate and reliable. The connector can recognize the hard-wired signal and transmit it directly to the body controller via a pre-defined hardwire.

[0047] Optionally, for control signals of non-emergency functions, such as audio adjustment and air conditioning control, the signals generated by the piano key switches are network signals, typically encoded via the Controller Area Network (CAN) bus protocol. The connector can recognize these network signals and connect them to the vehicle network through its network interface (e.g., the CAN pin), ultimately transmitting the signals to the corresponding vehicle controller.

[0048] Optionally, for control signals of the hard-wired type, the connector transmits the signal through a hard-wired channel directly connected to the body controller. This means that the control signal does not need to be forwarded through multiple levels in the network, but goes directly from the piano key switch module to the body controller, ensuring immediate response and high-priority processing of emergency control signals.

[0049] Optionally, for control signals of the network signal type, the connector utilizes the network interface to import the control signal into the vehicle network. The vehicle network is a complex information exchange platform that can quickly and accurately route signals to target controllers, such as audio controllers or air conditioning controllers. This approach saves wiring harnesses, simplifies internal vehicle wiring, and also improves the flexibility and efficiency of signal transmission.

[0050] Optionally, the connector not only performs the task of signal type identification but also selects the appropriate transmission path based on the signal type, ensuring proper handling of both instantaneous hard-wired signals and flexible, efficient network signals. Combined with the safety detection function of the display module, it ensures the safety, real-time performance, and efficiency of control signal transmission, providing users with a more intuitive and reliable means of controlling vehicle functions, while also optimizing the vehicle's internal electrical wiring and signal management.

[0051] The vehicle controller 104, connected to the connector, is used to control vehicle functions based on control signals.

[0052] In this embodiment, the vehicle controller is the core component of the vehicle control circuit. It is connected to the connector and is used to receive control signals transmitted by the connector and control the vehicle functions according to the control signals.

[0053] Optionally, when the piano key switch on the switch module is operated, the generated control signal is transmitted to the vehicle controller via the display module and connector. Upon receiving the control signal, the vehicle controller parses it, identifying the signal type (e.g., hard-wired or network signal) and the contained control commands. For hard-wired control signals, such as hazard alarm switch signals, due to their immediacy and importance, the vehicle controller will respond immediately, triggering the corresponding emergency alarm mechanism. For network signals transmitted via the vehicle network (e.g., CAN bus), the vehicle controller will convert the signal into executable commands, controlling the adjustment of non-emergency functions such as audio and air conditioning through the vehicle's electronic system.

[0054] Optionally, the vehicle controller executes a predetermined control strategy based on the received control signal to adjust the vehicle's functions in real time. For example, if the received signal is an audio control signal, the vehicle controller will adjust the audio system's volume, channel, or input source; if it is an air conditioning control signal, it will adjust the air conditioning's temperature, fan speed, or mode accordingly. While executing the control strategy, the vehicle controller will also provide feedback to the user through the central control display or other output devices, allowing the user to understand the current status of the functions, such as displaying the current volume and air conditioning temperature.

[0055] Optionally, for hard-wired control signals, especially hazard alarm signals, the vehicle controller must ensure rapid response and accuracy to guarantee the safety of the driver and passengers. The vehicle controller integrates a safety check mechanism to ensure the integrity and timeliness of control signals even during transmission. For network signals, the vehicle controller checks the integrity and validity of the signals to prevent misoperation or signal interference.

[0056] Optionally, the vehicle controller not only receives and processes control signals from the piano key switches, but also executes specific control strategies based on these signals to achieve precise control of vehicle functions. Through close collaboration with the central control display module and central control screen connectors, the vehicle controller ensures the security and efficiency of signal transmission while also enhancing the user experience of vehicle operation.

[0057] In the control circuit of the vehicle described in this application, after the switch module generates the control signal for the vehicle function, the control signal can be transmitted to the display module for safety detection. The control signal that passes the safety detection is transmitted to the vehicle controller through the connector. Specifically, the control signal for the hard wire type is directly transmitted to the vehicle controller through the hard wire, and the control signal for the network type is directly transmitted to the vehicle controller through the vehicle network. This avoids the safety hazards and complexity caused by deploying additional long wiring harnesses, greatly reduces the use of physical wiring harnesses, thereby reducing the wiring complexity of the vehicle and solving the technical problem of high wiring complexity when controlling vehicle functions through physical buttons.

[0058] The control circuit of the vehicle described in this application will be further described below.

[0059] As an optional implementation, the switch module 101 includes a first spring pin connector 1011, and the display module 102 includes a second spring pin connector 1021. The switch module 101 and the display module 102 are connected through the first spring pin connector 1011 and the second spring pin connector 1021.

[0060] In this embodiment, Figure 2 This is a schematic diagram of the connection between a first spring pin connector and a second spring pin connector according to an embodiment of this application, as shown below. Figure 2 As shown, the first spring-loaded pin connector 1011 is connected to the second spring-loaded pin connector 1021. The first spring-loaded pin connector 1011 can be located on the side of the switch module 101 closer to the display module 102, and the second spring-loaded pin connector 1021 can be located on the side of the display module 102 closer to the switch module 101. The spring-loaded pin connector, with its high reliability, ensures stable and fast signal transmission between the switch module and the display module.

[0061] Optionally, the first spring-loaded connector in the switch module is directly connected to the piano key contacts in the switch module. When the user operates the piano key, the contact makes contact with the first spring-loaded connector, triggering the generation of a control signal. The design of the first spring-loaded connector ensures a stable connection between the piano key contacts in the switch module and the display module, while also providing tactile feedback and enhancing the user experience.

[0062] Alternatively, the spring-loaded connector provides stable physical contact through its internal spring structure, enabling the transmission of control signals generated by the physical piano key switches to the display module. This connection method not only ensures timely signal transmission but also avoids signal interference or loss due to poor wiring contact.

[0063] Optionally, a second spring-loaded connector in the display module is used to receive control signals from the switch module. The second spring-loaded connector precisely mates with the first spring-loaded connector, forming a path for control signal transmission. This connection method not only simplifies wiring within the vehicle but also improves connection reliability and reduces potential points of failure in signal transmission.

[0064] In the control circuit of this application, the use of a first spring pin connector and a second spring pin connector achieves an efficient, stable, and safe connection between the switch module and the display module. This avoids the complexity and potential failure rate of traditional wiring harnesses, while also optimizing the structural layout inside the vehicle and providing greater flexibility for the design of the cockpit.

[0065] As an optional implementation, the first spring pin connector 1011 includes a plurality of first pins, and the second spring pin connector 102 includes a plurality of second pins, wherein the first pins and second pins of the same pin type are connected.

[0066] In this embodiment, the first spring pin connector includes a plurality of first pins, and the second spring pin connector includes a plurality of second pins. The first spring pin connector and the second spring pin connector are connected to pins of the same pin type to ensure accurate and error-free transmission of control signals.

[0067] Optionally, Figure 3 This is a schematic diagram illustrating the connection between a first spring pin connector and a second spring pin connector according to another embodiment of this application. Figure 3 As shown, the first spring-loaded connector includes a series of first pins with specific functions. These pins are designed to mate with the second spring-loaded connector on the display module to form a stable electrical connection. The first pins include a power pin, a ground pin, a CAN_H pin, a CAN_L pin, and a ground pin. Each pin is used to seamlessly transmit signals generated by the switching module (including emergency alarm hardwired signals and network signals for non-emergency functions) and power requirements to the second spring-loaded connector.

[0068] Optionally, the second spring-loaded connector is also equipped with a power pin, a CAN_H pin, a CAN_L pin, and a ground pin. Each second pin connects to a first pin of the same type in the first spring-loaded connector. Each corresponding second pin connects to a first pin of the same type, forming a one-to-one connection when the two modules are mated.

[0069] Optionally, connecting the first and second pins of the same pin type means that the switch module and display module follow strict pin configuration rules during design, ensuring that each functional pin can accurately interface with the corresponding functional pin on the other module. For example, the power pin in the first spring-loaded connector is connected to the power pin in the second spring-loaded connector, the ground pin in the first spring-loaded connector is connected to the ground pin in the second spring-loaded connector, the CAN_H pin in the first spring-loaded connector is connected to the CAN_H pin in the second spring-loaded connector, and the CAN_L pin in the first spring-loaded connector is connected to the CAN_L pin in the second spring-loaded connector. This is done to ensure the correct transmission direction of signals and power, avoid any possible crossovers or short circuits, and thus ensure the stability and safety of the control circuit.

[0070] Optionally, the first and second spring pin connectors are configured via pins to ensure efficient and secure transmission of signals and power between the piano key switches and the central control display module.

[0071] As an optional implementation, the control circuit 100 further includes: a power module 105, which is connected to a power pin in the second spring pin connector 1021 for transmitting output current to the display module; the power pin in the second spring pin connector 1021 is connected to a power pin in the first spring pin connector 1011 for transmitting output current to the switching module.

[0072] In this embodiment, Figure 4 This is a connection diagram of a power module according to an embodiment of this application, such as... Figure 4 As shown, the power module 105 is connected to the power pin in the second spring pin connector 1021, which can supply 12V DC power to the display module (central control display screen). When the first spring pin connector 1011 and the second spring pin connector 1021 are mated, the power pin of the second spring pin connector 1021 will be mated with the power pin of the first spring pin connector 1011, forming a current transmission path.

[0073] For example, the power module transmits DC current through a hard wire (e.g., internal wire) to the power pin of the second spring-loaded connector. Upon receiving the current from the power module, the power pin of the second spring-loaded connector directs the current into the power circuit of the display module, ensuring its normal operation. When the switch module is connected to the display module, the power pin of the second spring-loaded connector contacts the power pin of the first spring-loaded connector, forming a current transmission path. Current is transmitted through this path to the switch module, providing it with the necessary power to respond to user input.

[0074] Optionally, efficient current transfer from the power module to the switch module is achieved through the power pins in the power module and spring-loaded connector. This design not only simplifies the wiring structure inside the vehicle and improves assembly flexibility, but also ensures stable power supply and safe operation of the piano-key switch module.

[0075] As an optional implementation, the control circuit 100 further includes a short-circuit protection circuit 106, one end of which is connected to the power module 105 and the other end is connected to the power pin in the second spring pin connector 1021, for safe detection of the output current.

[0076] In this embodiment, the short-circuit protection circuit is an important component inside the display module. It is used to perform safety detection on the current output from the power module to the switching module, prevent short-circuit events, and protect the display module and other vehicle electronic devices from damage.

[0077] In this embodiment, Figure 5 This is a schematic diagram of a short-circuit protection connection according to an embodiment of this application, as shown below. Figure 5 As shown, one end of the short-circuit protection circuit 106 is connected to the power module 105 to receive 12V power from the power module, and the other end is connected to the power pin in the second spring pin connector 1021. When the switch module 101 establishes a connection with the display module 102 through the first spring pin connector 1011, the 12V power provided by the power module 105 will pass through the short-circuit protection circuit 106, and then be transmitted to the switch module 101 through the power pin in the second spring pin connector 1021 and the power pin in the first spring pin connector 1011.

[0078] Optionally, the short-circuit protection works by detecting abnormal current in the power output line to prevent short circuits. This mainly includes, but is not limited to, the following functions: current monitoring, reverse connection protection, and safety detection and feedback.

[0079] Optionally, for current monitoring, the short-circuit protection circuit can continuously monitor the current flowing through the line. Once an abnormally high current is detected, it indicates a short circuit in the control circuit. In this case, the short-circuit protection circuit will respond immediately. For example, it can cut off the power supply through a built-in fuse or relay to prevent current from continuing to flow to the piano key switch module, avoiding equipment damage or fire risks caused by a short circuit.

[0080] Optionally, for reverse power protection, in vehicle electronic systems, reverse power connection can cause equipment damage or even system crash. Short-circuit protection, through forward-conducting diodes or other reverse-connection protection devices, ensures that current cannot flow even if the power lines are reversed, thus protecting the piano key switch module and other related equipment from damage.

[0081] Optionally, for safety detection and feedback, the short-circuit protection device has the capability to detect and periodically check the status of itself and its connected wiring. If any fault or safety hazard is detected, it can generate corresponding fault signals or warning messages and provide feedback to the user or vehicle maintenance personnel via the central control display or other output devices so that timely measures can be taken to eliminate the hazard.

[0082] Optionally, by integrating a short-circuit protection circuit, the overall safety of the control circuit is significantly improved. This not only enables timely detection and prevention of short-circuit events but also effectively addresses potential risks such as reverse power connection, reducing common failure modes in vehicle electronic systems. Furthermore, the self-testing and feedback mechanism of the short-circuit protection circuit further enhances system reliability, ensuring device safety and operational stability when the user operates the piano key switches.

[0083] Optionally, the short-circuit protection circuit plays a crucial safety role in the control circuit. By safely detecting the output current of the power module, it prevents risks associated with short circuits and reverse power connections, ensuring the stability and security of signal transmission between the piano key switch module and the central control display module. This design not only improves the user experience of operating the piano keys but also enhances the robustness and safety of the entire vehicle's electronic control system.

[0084] As an optional implementation, the control circuit 100 further includes a diode 107, the input terminal of which is connected to the output terminal of the power module 105, and the output terminal of which is connected to the input terminal of the short-circuit protection circuit 106, for controlling the output current to flow in one direction.

[0085] In this embodiment, Figure 6 This is a schematic diagram of a diode connection according to an embodiment of this application, such as... Figure 6 As shown, diode 107 is designed to connect the output terminal of power module 105 to the input terminal of short-circuit protection circuit 106. Its main function is to control the unidirectional flow of current, thereby increasing the stability and safety of the circuit.

[0086] Alternatively, a diode is an electronic component with non-linear current-voltage characteristics. Its most basic function is rectification, meaning it allows current to flow in only one direction and prevents reverse current. This characteristic is crucial in circuit design, as it prevents reverse power connection and avoids damage to other components in the circuit caused by reverse current flow.

[0087] Optionally, a diode is placed between the power module output and the short-circuit protection input. When the piano key switch module is operating, the power module provides stable power to the piano key switch through the diode. The forward conduction characteristic of the diode ensures that current flows from the power module to the piano key switch module without reverse flow. This configuration is crucial for preventing damage to the piano key switch and central control display module under reverse power connection or voltage fluctuations.

[0088] Optionally, the presence of the diode, combined with the short-circuit protection circuit, forms a complete safety detection system. When current flows through the diode, if an overload or short circuit occurs, the short-circuit protection circuit will respond immediately, cutting off the power supply and preventing potential current overload from causing irreversible damage to the piano key switch module and the central control display module. By controlling the unidirectional flow of current through the diode, combined with the protection function of the short-circuit protection circuit, the stability and safety of the control circuit are significantly enhanced.

[0089] Optionally, the introduction of diodes not only enhances the protection mechanism of the control circuit, but also simplifies power management, ensuring that the switching module can obtain a safe and stable current supply from the power module under any circumstances, without being damaged due to reverse power connection or wiring errors.

[0090] In the control circuit of this application, the diode acts as a controller for unidirectional current flow, working in conjunction with the short-circuit protection circuit to ensure that the piano key switch module and the central control display module are effectively protected even under abnormal operating conditions, avoiding possible damage.

[0091] In the control circuit of the vehicle described in this application, after the switch module generates the control signal for the vehicle function, the control signal can be transmitted to the display module for safety detection. The control signal that passes the safety detection is transmitted to the vehicle controller through the connector. Specifically, the control signal for the hard wire type is directly transmitted to the vehicle controller through the hard wire, and the control signal for the network type is directly transmitted to the vehicle controller through the vehicle network. This avoids the safety hazards and complexity caused by deploying additional long wiring harnesses, greatly reduces the use of physical wiring harnesses, thereby reducing the wiring complexity of the vehicle and solving the technical problem of high wiring complexity when controlling vehicle functions through physical buttons.

[0092] According to an embodiment of this application, an embodiment of a control method for a vehicle control circuit is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0093] This embodiment provides a control method for a vehicle control circuit. Figure 7 This is a flowchart of a control method for a vehicle control circuit according to an embodiment of this application, such as... Figure 7 As shown, the process includes the following steps.

[0094] In step S701, in response to the triggering operation of the switch module, the switch module is controlled to generate a control signal.

[0095] In the technical solution provided in step S701 of this application, when the driver or passenger presses the piano key switch, this operation is considered a trigger operation. The switch module includes a series of physical buttons associated with various vehicle functions, such as volume control, air conditioning adjustment, or emergency alarm. Pressing each button triggers a preset control signal, which is generated by the contact between the contacts on the piano keys and the first spring pin connector, and this control signal is an electrical signal.

[0096] In this embodiment, when the piano key switch in the switching module is pressed, a mechanical movement is generated, causing the contacts on the piano key switch to make contact with the corresponding pins in the first spring pin connector. The contact between the contacts and the pins closes the circuit, generating a control signal. The nature of this control signal (e.g., a voltage change or a current pulse) depends on the position and function of the key. For example, an emergency alarm key might directly trigger a hard-wired signal, while other function keys might send more complex network commands via the CAN bus.

[0097] In this step, the user's operation of triggering the piano key switch of the switch module can be instantly and accurately converted into a control signal that the vehicle understands and responds to, greatly improving the efficiency and experience of human-machine interaction.

[0098] Step S702: The control signal is transmitted to the display module.

[0099] In the technical solution provided in step S702 of this application, the control signal generated by the switch module can be transmitted to the display module, which can perform security detection on the control signal to ensure the integrity of the control signal and the safety of the circuit system.

[0100] In this embodiment, the control signal generated by the switch module is transmitted to the display module through the first spring pin connector of the switch module and the second spring pin connector in the display module.

[0101] Optionally, if the control signal is a hazard alarm signal, the hazard alarm signal can be transmitted to the display module through the alarm switch pin in the first spring pin connector of the switch module and the alarm switch pin in the second spring pin connector of the display module, wherein the alarm switch pin in the first spring pin connector of the switch module is connected to the alarm switch pin in the second spring pin connector of the display module.

[0102] Optionally, upon receiving a control signal, the display module immediately performs a safety check on the control signal. This step is crucial because any undetected signal, especially abnormal signals that may be caused by misoperation, hardware failure, or external interference, could threaten the normal operation of the display module and even affect the stability and safety of the entire vehicle's electronic system.

[0103] Optionally, the safety checks performed on the display module mainly include: signal integrity verification, short-circuit protection detection, and reverse power connection checks. For signal integrity verification, the received control signal is ensured to be unaffected or undamaged by comparing signal characteristics with a preset normal signal pattern, thus verifying the signal's integrity and reliability. For short-circuit protection detection, the display module's circuit design may include a short-circuit protection circuit to monitor the status of internal circuitry and prevent current overload caused by short circuits. During signal transmission, the short-circuit protection circuit checks for abnormal current fluctuations in the signal lines; if detected, it immediately disconnects or isolates the affected lines, protecting the display module and other electronic systems from potential damage. For reverse power connection detection, since the piano key switch module is powered by the central control display module, the display module needs to verify the correct polarity of the power supply to avoid equipment damage caused by reverse power connection. This check is typically implemented using components such as diodes, allowing only forward power flow and preventing reverse current generation.

[0104] In this step, the display module not only receives and processes control signals from the switch module, but also performs signal safety detection. This design ensures the accuracy and security of signal transmission, reduces the risk of potential circuit failures, and also improves the responsiveness and reliability of the user's operation of the physical piano keys.

[0105] In step S703, in response to the control signal passing the security detection, the control signal that has passed the security detection is transmitted to the connector.

[0106] In the technical solution provided by step S703 of this application, if the control signal passes the security detection in step S402, the control signal that has passed the security detection can be transmitted to the connector.

[0107] In this embodiment, the control signal that has passed the security check is transmitted to the corresponding printed circuit board assembly (PCBA) of the display module through a specific pin of the second spring-loaded connector in the display module. The PCB processes the control signal and transmits it to the connector.

[0108] In this step, the control signal is transmitted to the connector after passing the security test, which can improve the security and reliability of the control signal transmission.

[0109] In step S704, in response to the control signal being a hard-wired signal type, the control connector transmits the control signal to the vehicle controller via a hard wire; or, in response to the control signal being a network signal type, the control connector transmits the control signal to the vehicle controller via the vehicle network.

[0110] In the technical solution provided in step S704 of this application, the control signals are divided into two types according to their transmission method and characteristics: hard-wired signal type and network signal type. Hard-wired signal type control signals are transmitted directly via hard wires and are typically used for emergency operations requiring immediate response, such as emergency alarm signals. Hard-wired signals offer fast transmission speeds, direct paths, and are unaffected by network latency or data packet loss, making them ideal for rapid response in emergency situations. Network signal type control signals are transmitted via data networks (such as CAN bus) and are suitable for non-emergency, routine vehicle function control, such as air conditioning adjustment signals and volume control signals. The advantage of network signals is that they can process multiple signals simultaneously, reducing the complexity and cost of wiring harnesses and improving system flexibility and scalability.

[0111] In this embodiment, if the control signal is a hardwired signal, the control connector transmits the control signal to the vehicle controller via the hardwire; or if the control signal is a network signal, the control connector transmits the control signal to the vehicle controller via the vehicle network.

[0112] Optionally, the connector is equipped with dedicated pins for the transmission of hard-wired signals. These pins connect directly to the body control unit, ensuring a rapid response to emergency signals. The connector is also configured with CAN_H and CAN_L pins for the transmission of network signals. When a network signal is detected, the control circuit sends a signal to the vehicle bus through these pins, enabling communication with the vehicle control unit.

[0113] In this step, different transmission mechanisms are used to distinguish between hard-wired signals and network signals, ensuring the immediacy of emergency signals and the flexibility of regular signals.

[0114] In steps S701 to S704 above, the layout of physical piano keys provides users with an intuitive and tactile feedback operating experience. Compared to pure touchscreen operation, physical buttons are easier for users to identify and operate, especially during driving. Users can quickly locate and execute actions without being distracted by the screen, improving driving safety. For control signals of the hard-wired type in emergency situations, direct transmission via hard wires avoids potential network transmission delays, ensuring that necessary safety measures can be triggered immediately in emergency situations, improving the vehicle's reaction speed and safety in emergency situations. For control signals in non-emergency situations, transmission is via the vehicle network. The high bandwidth and low latency characteristics of the CAN bus in the vehicle network ensure that these signals can be transmitted to the vehicle controller quickly and without loss, achieving precise control of vehicle functions and improving system response speed and overall efficiency. Different transmission methods are adopted according to the different signal types of control signals, improving the flexibility of signal transmission while ensuring vehicle safety.

[0115] As an optional implementation, during the control signal transmission process, the method further includes: in response to detecting a current overload in the control circuit, controlling the anti-short circuit to disconnect the connection between the power module and the second spring pin connector.

[0116] In this embodiment, in the control circuit, current overload refers to the current flowing through the circuit exceeding its designed rated current value. This may be caused by short circuits, sudden increases in load, or circuit component failures. As part of the circuit protection, short circuit protection incorporates current detection and overload response functions, enabling real-time monitoring of the current intensity in the circuit. Once an overload is detected, it immediately triggers corresponding safety measures.

[0117] Optionally, when the short-circuit protection circuit detects a current overload, it will immediately respond and disconnect the connection between the power module and the second spring-loaded connector. This mechanism is typically implemented using a circuit breaker, fuse, or programmable current protection circuit.

[0118] Optionally, the current monitoring element (e.g., a current sensor) in the short-circuit protection continuously monitors the current in the power line. When the detected current intensity exceeds a preset threshold (i.e., an overload occurs), the protective element in the circuit is activated.

[0119] Optionally, in response to an overload signal, the circuit breaker or fuse in the short-circuit protection will immediately trip, physically or electronically disconnecting the connection between the power module and the second spring pin connector, preventing excessive current from continuing to flow through the piano key switch module or the central control display module, and avoiding possible thermal damage or hardware failure.

[0120] Optionally, after the power connection is disconnected, the short-circuit protection circuit will isolate the faulty circuit, preventing the effects of current overload from spreading to other normally operating circuit parts, and ensuring the normal operation of other components of the entire system.

[0121] Optionally, after the circuit overload protection trips, the central control display or other user interface will show corresponding warning messages to inform the user that a circuit overload event has occurred. Simultaneously, the system may include a fault recovery mechanism, such as automatic or manual reset of the circuit breaker, to re-establish power connection and restore normal system function after the overload cause has been eliminated.

[0122] In this step, by monitoring the current intensity in real time and quickly cutting off the power connection when an overload is detected, the safety of the control circuit is significantly enhanced, effectively preventing hardware damage and safety hazards, avoiding potential system crashes or loss of function, and providing users with a more stable and reliable vehicle function control environment.

[0123] The above technical solutions of the present application embodiments will be further illustrated below with reference to preferred embodiments of the present invention.

[0124] Figure 8 This is a schematic diagram of a spring pin connection interface circuit according to an embodiment of this application, as shown below. Figure 8 As shown, the interface circuit includes: central control screen 801, central control screen POGO PIN 802, piano keys 803, and piano keys POGO PIN 804.

[0125] like Figure 8 As shown, the POGO PIN802 of the central control display is connected to the POGO PIN804 of the piano key device. The connection between the POGO PIN802 of the central control display and the POGO PIN804 of the piano key device is precisely matched according to the pre-set pin function definition. That is, the pins on the POGO PIN802 of the central control display are connected one-to-one with the pins with the same function on the POGO PIN804 of the piano key device to ensure that the signal and power can be transmitted accurately from one device to another.

[0126] Figure 9 This is a schematic diagram of a control circuit for controlling piano key switches using a central control display screen, according to an embodiment of this application. Figure 9 As shown, the control circuit includes: piano key switch POGO PIN901, central control screen POGO PIN902, short-circuit protection circuit 903, diode 904, and central control screen connector 905.

[0127] like Figure 9As shown, the power pin of the piano key switch POGO PIN901 is connected to the power pin of the central control screen POGO PIN902. The power pin is connected to the vehicle's KL30 power supply through the central control screen's printed circuit board (PCBA), and then from pins 4 and 8 of the central control screen connector 905. To prevent overheating of the circuit due to current overload, which may cause equipment damage, a short-circuit protection circuit 903 and a diode 904 are added between the central control screen and the piano keys. By detecting circuit abnormalities, the power supply is quickly cut off to avoid equipment damage.

[0128] like Figure 9 As shown, the CAN_H pin of the piano key switch POGO PIN901 is connected to the CAN_H pin of the central control screen POGO PIN902. The CAN_H pin is connected to the vehicle's CAN network through the central control screen printed circuit board (PCBA) and then from pin 1 of the central control screen connector. The CAN_L pin of the piano key switch POGO PIN901 is connected to the CAN_L pin of the central control screen POGO PIN902. The CAN_L pin is connected to the vehicle's CAN network through the central control screen printed circuit board (PCBA) and then from pin 5 of the central control screen connector 905. The alarm switch output pin of the piano key switch POGO PIN901 is connected to the alarm switch output pin of the central control screen POGO PIN902. The alarm switch output is connected to the vehicle's domain controller through the central control screen printed circuit board (PCBA) and then from pin 2 of the central control screen connector to control the hazard warning lights. The ground pin of the piano key switch POGO PIN901 is connected to the central control screen POGO PIN902. The ground pin in PIN902 is connected, and the ground pin is connected to the vehicle ground through the central control screen PCBA, and then from pins 3 and 7 in the central control screen connector.

[0129] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, use and processing of the relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions, and corresponding operation entry points are provided for users to choose to authorize or refuse.

[0130] According to an embodiment of this application, an embodiment of a control device for a vehicle control circuit is provided. It should be noted that the control device for the vehicle control circuit can be used to execute the control method of the vehicle control circuit described above.

[0131] Figure 10 This is a schematic diagram of a control device for a vehicle control circuit according to an embodiment of this application. Figure 10As shown, the control device 1000 of the vehicle's control circuit may include: a first control unit 1001, a first transmission unit 1002, a second transmission unit 1003, and a second control unit 1004.

[0132] The first control unit 1001 is used to control the switch module to generate a control signal in response to a trigger operation on the switch module.

[0133] The first transmission unit 1002 is used to transmit control signals to the display module, wherein the display module is used to perform safety detection on the control signals.

[0134] The second transmission unit 1003 is used to transmit the control signal that has passed the security detection to the connector in response to the control signal passing the security detection.

[0135] The second control unit 1004 is configured to, in response to a control signal being a hard-wired signal type, control the connector to transmit the control signal via a hard wire to the vehicle controller, or, in response to a control signal being a network signal type, control the connector to transmit the control signal via a vehicle network to the vehicle controller.

[0136] Optionally, the device 1000 is also used to: in response to detecting a current overload in the control circuit, control the short circuit protection to disconnect the connection between the power module and the second spring pin connector.

[0137] In the control device of the control circuit of the vehicle described in this application, after the switch module generates the control signal for the vehicle function, the control signal can be transmitted to the display module for safety detection. The control signal that passes the safety detection is transmitted to the vehicle controller through the connector. Specifically, the control signal for the hard wire type is directly transmitted to the vehicle controller through the hard wire, and the control signal for the network type is directly transmitted to the vehicle controller through the vehicle network. This avoids the safety hazards and complexity caused by deploying additional long wiring harnesses, greatly reduces the use of physical wiring harnesses, thereby reducing the wiring complexity of the vehicle and solving the technical problem of high wiring complexity when controlling vehicle functions through physical buttons.

[0138] Embodiments of this application also provide a vehicle, including: a memory storing an executable program; and a processor for running the program, wherein the program executes the methods described in various embodiments of this application when it runs.

[0139] Embodiments of this application also provide a computer-readable storage medium including a stored executable program, wherein, when the executable program is running, it controls the device where the computer-readable storage medium is located to perform the methods of various embodiments of this application.

[0140] Embodiments of this application also provide a computer program product, including a computer program that, when executed by a processor, implements the methods of various embodiments of this application.

[0141] Embodiments of this application also provide a computer program product, including a non-volatile computer-readable storage medium for storing a computer program that, when executed by a processor, implements the methods in various embodiments of this application.

[0142] Embodiments of this application also provide a computer program that, when executed by a processor, implements the methods described in the various embodiments of this application.

[0143] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0144] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0145] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0146] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0147] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.

[0148] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A vehicle control circuit, characterized in that, include: A switch module is used to generate control signals for vehicle functions; The display module, connected to the switch module, is used for safety detection of the control signal; A connector, connected to the display module, is used to transmit the control signal to the vehicle controller via a hard wire or via a vehicle network, depending on the signal type of the control signal that has passed the safety detection. The vehicle controller, connected to the connector, is used to control the vehicle functions based on the control signal.

2. The control circuit according to claim 1, characterized in that, The switch module includes a first spring pin connector, and the display module includes a second spring pin connector. The switch module and the display module are connected through the first spring pin connector and the second spring pin connector.

3. The control circuit according to claim 2, characterized in that, The first spring pin connector includes a plurality of first pins, and the second spring pin connector includes a plurality of second pins, wherein the first pins of the same pin type are connected to the second pins.

4. The control circuit according to claim 2, characterized in that, The control circuit also includes a power supply module. The power module is connected to the power pin in the second spring pin connector and is used to transmit the output current to the display module; The power pin in the second spring pin connector is connected to the power pin in the first spring pin connector to transmit the output current to the switching module.

5. The control circuit according to claim 4, characterized in that, The control circuit also includes a short-circuit protection circuit. The short-circuit protection circuit is connected at one end to the power module and at the other end to the power pin in the second spring pin connector, and is used to perform safety detection on the output current.

6. The control circuit according to claim 5, characterized in that, The control circuit also includes: a diode, The input terminal of the diode is connected to the output terminal of the power module, and the output terminal of the diode is connected to the input terminal of the short-circuit protection circuit, which is used to control the output current to flow in one direction.

7. A control method for a vehicle control circuit, characterized in that, The method, applied to the control circuit according to any one of claims 1 to 6, comprises: In response to a trigger operation on the switch module, the switch module is controlled to generate the control signal; The control signal is transmitted to the display module, wherein the display module is used to perform security detection on the control signal; In response to the control signal passing the security check, the control signal that has passed the security check is transmitted to the connector; In response to the control signal being a hardwired signal type, the connector is controlled to transmit the control signal to the vehicle controller via a hardwired connection; or, in response to the control signal being a network signal type, the connector is controlled to transmit the control signal to the vehicle controller via the vehicle network.

8. The control method according to claim 7, characterized in that, During the control signal transmission process, the method further includes: In response to the detection of a current overload in the control circuit, the short-circuit protection circuit is controlled to disconnect the connection between the power module and the second spring pin connector.

9. A vehicle, characterized in that, include: Memory, which stores executable programs; A processor for running the program, wherein the program, when running, performs the method according to any one of claims 7 to 8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored executable program, wherein, when the executable program is executed, it controls the device on which the storage medium is located to perform the method of any one of claims 7 to 8.

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