Multi-node intelligent harness system with adjustable configuration

Abstract

The present invention provides an adjustable and configurable multi-node intelligent wiring harness system, which includes a main interaction node and at least one secondary interaction node, wherein the main interaction node is connected to the at least one secondary interaction node in sequence; the main interaction node and the secondary interaction node both include: a node connection module, a debugging module and a configuration function module; wherein the configuration function module includes a speed detection pin, a signal control pin, a signal detection pin and a signal interaction pin; each interaction node can realize interaction with various components of an electric vehicle, and subsequently the detection components, control components and interaction components of the electric vehicle are respectively connected to the adjacent main interaction node or secondary interaction node to realize corresponding data control and data feedback.

Description

Technical Field

[0001] The present invention relates to the field of data transmission, and in particular to a multi-node intelligent wiring harness system with adjustable configuration. Background Art

[0002] In order to improve the safety of electric vehicles, existing electric vehicle manufacturers will set up functions such as tire speed measurement, brake detection, and taillight radar on electric vehicles. Since these detection devices are set in different areas of the electric vehicle, in order to achieve timely control and feedback of these detection devices by the main console, each detection device needs to be wired separately from the main console. Therefore, the wiring harness system of traditional electric vehicles is more and more messy. At the same time, due to the large amount of wiring, the weight of the entire wiring harness system is larger and the anti-interference ability of the wiring harness system is poor. The scalability of the wiring harness system is poor and it is difficult to maintain.

[0003] Therefore, it is necessary to provide a multi-node intelligent wiring harness system with adjustable configuration to solve the above technical problems. Summary of the Invention

[0004] An embodiment of the present invention provides an adjustable multi-node intelligent wiring harness system, which can set the wiring harnesses of different devices through multiple interactive nodes; it effectively solves the problems of existing electric vehicles that the entire wiring harness system is heavy and has poor anti-interference ability due to the large amount of wiring, and the wiring harness system has poor scalability and is difficult to maintain.

[0005] An embodiment of the present invention provides a multi-node intelligent wiring harness system with adjustable configuration, which includes a primary interaction node and at least one secondary interaction node, wherein the primary interaction node and the at least one secondary interaction node are connected in sequence;

[0006] The primary interaction node and the secondary interaction node both include:

[0007] Node connection module, used to interact with adjacent interaction nodes;

[0008] A debugging module, configured to set functions of the interactive node; and

[0009] Configuration function module, used to configure different adjustable functions;

[0010] The configuration function module includes:

[0011] A speed detection pin, connected to a speed detection sensor of the electric vehicle, for detecting tire speed;

[0012] a signal control pin connected to a control device of the electric vehicle and used to send a drive signal to the control device;

[0013] A signal detection pin, connected to a detection device of the electric vehicle, and configured to receive a signal from the detection device;

[0014] A signal interaction pin, connected to an interaction device of the electric vehicle, for performing interaction operations with the interaction device;

[0015] The main interaction node further includes:

[0016] a power supply enabling module, configured to provide power supply enabling signals to all components of the electric vehicle and the secondary interactive node; and

[0017] The main control module is connected to the main control console of the electric vehicle and is used for sending and receiving main control signals.

[0018] Compared with the prior art, the embodiment of the present invention provides an adjustable multi-node intelligent wiring harness system with a main interaction node and multiple secondary interaction nodes. Users can set the main interaction node and the secondary interaction node at a reasonable position of the electric vehicle. Each interaction node can realize the interaction with various devices of the electric vehicle. Subsequently, the detection device, control device and interaction device of the electric vehicle are respectively connected to the adjacent main interaction node or secondary interaction node to realize the corresponding data control and data feedback, and the connection line can be adjusted and configured based on the actual situation of the electric vehicle, which simplifies the wiring setting and avoids interference between wiring harnesses. At the same time, each interaction node can conveniently expand and maintain the wiring harness; it effectively solves the problem that the existing electric vehicles have a large weight of the entire wiring harness system and poor anti-interference ability of the wiring harness system due to more wiring, and the wiring harness system has poor scalability and is difficult to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of an embodiment of an adjustable multi-node intelligent wiring harness system of the present invention;

[0020] Figure 2 A schematic diagram of a fixed module of a main interactive node of an adjustable multi-node intelligent wiring harness system of the present invention;

[0021] Figure 3a A schematic diagram of a module of a front interaction node of an embodiment of an adjustable multi-node intelligent wiring harness system of the present invention;

[0022] Figure 3b A schematic diagram of a module of a rear interaction node of an embodiment of an adjustable multi-node intelligent wiring harness system of the present invention;

[0023] Figure 4a A schematic diagram of a module of a front interaction node of another embodiment of an adjustable multi-node intelligent wiring harness system of the present invention;

[0024] Figure 4bA schematic diagram of a module of an interactive node in another embodiment of the multi-node intelligent wiring harness system with adjustable configuration of the present invention;

[0025] Figure 4c A schematic diagram of a module of a rear interaction node of another embodiment of the multi-node intelligent wiring harness system with adjustable configuration of the present invention;

[0026] Figure 5a A circuit diagram of a first voltage regulating circuit of an energy supply circuit of an adjustably configurable multi-node intelligent wiring harness system of the present invention;

[0027] Figure 5b A circuit diagram of an enabling circuit of an energy supply circuit of an adjustably configurable multi-node intelligent wiring harness system of the present invention;

[0028] Figure 5c A circuit diagram of a second voltage regulating circuit of an energy supply circuit of an adjustably configurable multi-node intelligent wiring harness system of the present invention;

[0029] Figure 6 A circuit diagram of a comparison circuit of an adjustable multi-node intelligent wiring harness system of the present invention;

[0030] Figure 7 A circuit diagram of a main control circuit of an adjustable multi-node intelligent wiring harness system of the present invention;

[0031] Figure 8 A circuit diagram of a control circuit of an adjustable multi-node intelligent wiring harness system of the present invention;

[0032] Figure 9 This is a circuit diagram of the detection circuit of the adjustable configuration multi-node intelligent wiring harness system of the present invention. DETAILED DESCRIPTION

[0033] Please refer to the drawings, in which the same component symbols represent the same components. The principles of the present invention are illustrated by implementing them in an appropriate computing environment. The following description is based on the specific embodiments of the present invention illustrated, and should not be construed as limiting the present invention to other specific embodiments not described in detail herein.

[0034] In the following description, embodiments of the present invention will be described with reference to steps and symbols representing operations performed by one or more computers, unless otherwise stated. It will be understood, therefore, that the steps and operations, several of which are referred to as being performed by a computer, involve manipulation by a computer processing unit of electronic signals representing data in a structured form. This manipulation transforms the data or maintains it at locations within the computer's memory system that can be reconfigured or otherwise alter the operation of the computer in a manner well known to those skilled in the art. The data structures in which the data is maintained are physical locations within the memory that have specific characteristics defined by the data format. However, the principles of the present invention are described in the foregoing text and are not intended to be limiting, and those skilled in the art will appreciate that the various steps and operations described below may also be implemented in hardware.

[0035] The present invention provides a multi-node intelligent wiring harness system with adjustable configuration, which can be set on an existing electric vehicle system to transmit signals to various components of the electric vehicle system, so as to facilitate the main console to detect and control the entire electric vehicle system.

[0036] The multi-node intelligent wiring harness system of the present invention is equipped with an integrated intelligent data chip at each node of the electric vehicle system. Users can set the nodes at the front and rear of the vehicle, or the front, middle and rear of the vehicle, etc. as needed. In order to facilitate wiring, users can also set the nodes in any open position on the vehicle body that is convenient for wiring.

[0037] Adjacent nodes are connected via an intelligent data bus, significantly reducing wiring complexity and cost. The intelligent data bus also utilizes differential signaling, encoding logic signals via voltage differences to completely offset common-mode noise interference. The intelligent data chip is hot-swappable, eliminating the need for rewiring or reconfiguration of new peripherals. The intelligent data chip can also be configured instantly through a debug interface.

[0038] The following describes in detail the specific working principle of the adjustable multi-node intelligent wiring harness system of the present invention. Figure 1 , Figure 1 This is a schematic diagram of the structure of an embodiment of the adjustable multi-node intelligent wiring harness system of the present invention. This embodiment of the adjustable multi-node intelligent wiring harness system 10 includes a primary interaction node 11 and multiple secondary interaction nodes 12. These primary interaction node 11 and secondary interaction nodes 12 can be located anywhere in the electric vehicle system. The primary interaction node 11 and the multiple secondary interaction nodes 12 are connected in sequence.

[0039] An electric vehicle system typically includes a speed sensor 21 for detecting tire speed; a control device 22 for receiving control signals, such as the vehicle's signal lights and horn; a detection device 23 for transmitting current status signals, such as the vehicle's speed sensor, brakes, and locks; and interactive devices 24 for data exchange, such as interactive meters and interactive radar. The electric vehicle system also includes a main console 25 for issuing control signals and a power supply 26 for providing power.

[0040] The main interactive node 11 of the wiring harness system of this embodiment includes a node connection module 111, a debugging module 112, a configuration function module 113, a power enable module 114 and a main control module 115. The node connection module 111 is used to connect and interact with adjacent interactive nodes. The debugging module 112 is used to set the functions of the corresponding interactive nodes. The configuration function module 113 is used to configure different adjustable functions. The power enable module 114 is used to provide power enable signals for all devices of the electric vehicle and the secondary interactive nodes. The main control module 115 is connected to the main console 25 of the electric vehicle for sending and receiving main control signals. At the same time, the main interactive node 11 and the secondary interactive node 12 of the wiring harness system are both connected to the power supply 26.

[0041] The configuration function module 113 includes a speed detection pin, a signal control pin, a signal detection pin, and a signal interaction pin. The speed detection pin is connected to the electric vehicle's speed detection sensor 21 for detecting tire speed; the signal control pin is connected to the electric vehicle's control device 22 for sending a drive signal to the control device 22; the signal detection pin is connected to the electric vehicle's detection device 23 for receiving signals from the detection device 23; and the signal interaction pin is connected to the electric vehicle's interaction device 24 for interacting with the interaction device 24.

[0042] The secondary interaction node 12 of the wiring harness system includes a node connection module 121, a debugging module 122, and a configuration module 123. Like the primary interaction node 11, the secondary interaction node 12 provides connection and interaction functions, function settings, and electric vehicle configuration. However, the interaction information of the secondary interaction node 12 must ultimately be fed back to the main console 25 through the primary interaction node 11. Furthermore, the secondary interaction node 12 can only operate normally based on the power enable signal from the primary interaction node 11.

[0043] The user can set the interactive node connected to the main console 25 as the main interactive node 11 as needed, and the main interactive node 11 and multiple secondary interactive nodes 12 can be connected in sequence. At the same time, the power supply enabling module of the main interactive node 11 is connected to the power supply end of all secondary interactive nodes 12, thereby ensuring that all devices and secondary interactive nodes 12 of the electric vehicle can be powered and work normally when the main interactive node 11 is working normally.

[0044] Specifically, the speed detection pins may include a front tire speed detection pin and a rear tire speed detection pin. The speed detection pins may be connected to a speed detection sensor of the electric vehicle via a comparison circuit to detect tire speed.

[0045] The signal control pins may include a headlight control pin, a horn control pin, a signal light control pin and an anti-skid control pin. The above signal control pins can be connected to the headlights, horns and other control devices of the electric vehicle through a control circuit to send drive signals to the control devices.

[0046] The signal detection pins include brake detection pins and fingerprint lock detection pins. The signal detection pins can be connected to detection devices such as the brake and fingerprint lock of the electric vehicle through the detection circuit to receive signals from the detection devices.

[0047] The signal interaction pins include instrument interaction pins and radar interaction pins. The signal interaction pins are directly connected to the interactive devices of the electric vehicle through serial port communication and are used for interactive operations with the interactive devices.

[0048] The primary interaction node and the secondary interaction node of this embodiment both include an MCU chip (e.g., a chip of model HC32F02). The MCU chip includes a power pin, a main control pin, a power enable pin, a node connection pin, a debug pin, an output pin, a speed detection pin, a signal control pin, a signal detection pin, and a signal interaction pin.

[0049] For primary interaction nodes, the power pin, master control pin, power enable pin, node connection pin, debug pin, and output pin are fixed, while the speed detection pin, signal control pin, signal detection pin, and signal interaction pin are optional. For secondary interaction nodes, the power pin, node connection pin, debug pin, and output pin are fixed, while the speed detection pin, signal control pin, signal detection pin, and signal interaction pin are optional. This allows users to configure corresponding functional modules on primary or secondary interaction nodes based on their specific needs.

[0050] Please refer to Figure 2 , Figure 2 This is a schematic diagram of a fixed module of a main interactive node of the adjustable multi-node intelligent wiring harness system of the present invention, namely Figure 2 The figure is a schematic diagram of a module with fixed setting pins. Figure 2Pin 5 of the MCU chip is a 3.3V power pin; Pin 8 is the main control transmission pin K_TXD2 (main control pin), which is used to send signals to the main console; Pin 9 is the main control receiving pin K_RXD2 (main control pin), which is used to receive signals from the main console; Pin 22 is the node receiving pin CAN0_RX (node ​​connection pin), which is used to receive signals from other interactive nodes; Pin 21 is the node sending pin CAN0_TX (node ​​connection pin), which is used to send signals to other interactive nodes; Pin 20 is the node interaction control pin CAN0_STB (node ​​connection pin), which is used To control the sending and receiving of interactive signals, a unique identifier of the interactive node is added to the interactive signal; Pin 23 is the debug data pin SWDIO (debug pin), which is used for debugging data interaction; Pin 24 is the debug clock pin SWCLK (debug pin), which is used to provide a debugging clock signal; Pin 27 is the power enable pin P-12V_EN, which is used to provide a power enable signal to the secondary interactive node and all devices of the electric vehicle; Pin 29 is the communication transmit pin USART0_TXD (output pin); Pin 30 is the communication receive pin USART0_RXD (output pin).

[0051] Figure 2 Pins 25 and 26 of the MCU chip are speed detection pins, pins 18, 19, 10, 11, and 12 are signal control pins, pins 13, 14, and 15 are signal detection pins, and pins 6 and 7 are signal interaction pins. Figure 2 The main interaction node in the is not yet configured for functionality, so the above pins are not connected.

[0052] Similarly, the secondary interaction node can also use the same chip, except that pins 8, 9 and 27 of the secondary interaction node are left empty.

[0053] The following is a specific example of how to set up interactive nodes on an electric vehicle system. Figure 3a and Figure 3b , Figure 3a A schematic diagram of a module of a front interaction node of an embodiment of an adjustable multi-node intelligent wiring harness system of the present invention; Figure 3b This is a module diagram of a rear interaction node of an embodiment of an adjustable multi-node intelligent wiring harness system of the present invention.

[0054] In this embodiment, the intelligent wiring harness system includes a primary interaction node and a secondary interaction node. The front interaction node is the primary interaction node, which can be installed at the front of the electric vehicle to facilitate connection with the front components of the electric vehicle. The rear interaction node is the secondary interaction node, which can be installed at the rear of the electric vehicle to facilitate connection with the rear components of the electric vehicle. The primary and secondary interaction nodes are connected via an intelligent data bus, allowing all device information of the electric vehicle to be exchanged with the main console through the primary interaction node.

[0055] Please refer to the Figure 3a ,exist Figure 2 On the basis of the fixed pins of the main interaction node, the configuration function module of the front interaction node of this embodiment is further provided with a front tire speed detection pin, a headlight control pin, a horn control pin, a brake detection pin, a fingerprint lock detection pin, an instrument interaction pin and a reserved pin.

[0056] Among them, pins 25 and 26 of the front interaction node are set as front tire speed detection pins, pin 19 is set as headlight control pin, pin 18 is set as horn control pin, pins 14 and 15 are set as brake detection pins, pin 13 is set as fingerprint lock detection pin, pins 6 and 7 are instrument interaction pins, pins 10, 11 and 12 are reserved pins, and users can add electric vehicle devices that need to be controlled later.

[0057] Please refer to Figure 3b ,exist Figure 2 On the basis of the fixed pins, the configuration function module of the rear interaction node of this embodiment is further provided with a rear tire speed detection pin, a signal light control pin, an anti-skid control pin, a radar interaction pin and a reserved pin.

[0058] Among them, pins 25 and 26 of the rear interaction node are set as rear tire speed detection pins, pin 10 is set as signal light control pin, pin 11 is set as brake light control pin, pin 12 is set as anti-skid control pin, pins 6 and 7 are radar interaction pins, pins 13, 14 and 15 are reserved pins, and users can add electric vehicle components that need to be detected later. At the same time, pins 18 and 19 are also reserved pins, and users can add electric vehicle components that need to be controlled later.

[0059] In this embodiment, the front tires, headlights, horns and other devices located at the front of the electric vehicle are connected to the front interactive node, and the rear wheels, signal lights, and anti-skid lights located at the rear of the electric vehicle are connected to the rear interactive node, reducing the length of the connecting wires. The front interactive node and the rear interactive node are connected through an intelligent data bus, so that all devices of the electric vehicle can be connected to the main console through the front interactive node or the rear interactive node, and the main console can control and detect all devices.

[0060] Please refer to Figures 4a to 4c , Figure 4a A schematic diagram of a module of a front interaction node of another embodiment of an adjustable multi-node intelligent wiring harness system of the present invention; Figure 4b A schematic diagram of a module of an interactive node in another embodiment of the multi-node intelligent wiring harness system with adjustable configuration of the present invention; Figure 4c This is a module diagram of a rear interaction node of another embodiment of the multi-node intelligent wiring harness system with adjustable configuration of the present invention.

[0061] In this embodiment, the intelligent wiring harness system includes a primary interaction node and two secondary interaction nodes. The front interaction node is the primary interaction node, which can be installed at the front of the electric vehicle to facilitate connection with the front components of the electric vehicle; the middle interaction node is the secondary interaction node, which is installed in the middle of the electric vehicle; and the rear interaction node is the secondary interaction node, which can be installed at the rear of the electric vehicle to facilitate connection with the rear components of the electric vehicle. The primary interaction node and the two secondary interaction nodes are connected in sequence via an intelligent data bus, so that all device information of the electric vehicle can be exchanged with the main console through the primary interaction node.

[0062] Please refer to the Figure 4a The configuration function module of the front interaction node of this embodiment is provided with a brake detection pin, an instrument interaction pin and a reserved pin.

[0063] Among them, pins 14 and 15 of the front interaction node are set as brake detection pins, pins 6 and 7 are instrument interaction pins, and pins 10, 11, 12, 13, 18, 19, 25, and 16 are reserved pins. Users can subsequently add electric vehicle devices that need to be controlled.

[0064] Please refer to Figure 4b In this embodiment, the configuration function module of the interactive node is provided with a front tire speed detection pin, a headlight control pin, a horn control pin, a fingerprint lock detection pin and a reserved pin.

[0065] Pins 25 and 26 of the middle interaction node are set as front tire speed detection pins, pin 19 is set as headlight control pin, pin 18 is set as horn control pin, pin 13 is set as fingerprint lock setting pin, and pins 6, 7, 10, 11, 12, 14, and 15 are reserved pins. Users can add electric vehicle devices that need to be controlled later.

[0066] Please refer to Figure 4c The configuration function module of the rear interaction node of this embodiment is provided with a rear tire speed detection pin, a signal light control pin, an anti-skid control pin, a radar interaction pin and a reserved pin.

[0067] Among them, pins 25 and 26 of the rear interaction node are set as rear tire speed detection pins, pin 10 is the rear tail light control pin, pin 11 is the brake signal light control pin, pin 12 is the anti-skid control pin, pins 6 and 7 are radar interaction pins, and pins 13, 14, 15, 18, and 19 are reserved pins. Users can add electric vehicle devices that need to be controlled later.

[0068] This embodiment adds a central interaction node located in the middle of the electric vehicle. Since the front interaction node needs to exchange device information of all the components of the electric vehicle with the central console, setting a relatively small number of configuration function modules on the front interaction node can better improve the utilization efficiency of the front interaction node, thereby improving the utilization efficiency of the entire intelligent wiring harness system. At the same time, the interaction nodes of the intelligent wiring harness system of this embodiment have various types of reserved pins. When the control pin or detection pin corresponding to a certain interaction node is abnormal, the user only needs to connect the connection line to the corresponding reserved pin, and then make the corresponding settings on the main console to use it normally, effectively avoiding the problem of the main console being unable to obtain the device information of the electric vehicle in a timely and stable manner due to the abnormality of some pins.

[0069] The following describes in detail the specific working principle of the interactive node of the intelligent wiring harness system of the present invention. Figures 5a to 5c , Figure 5a A circuit diagram of a first voltage regulating circuit of an energy supply circuit of an adjustably configurable multi-node intelligent wiring harness system of the present invention; Figure 5b A circuit diagram of an enabling circuit of an energy supply circuit of an adjustably configurable multi-node intelligent wiring harness system of the present invention; Figure 5c This is a circuit diagram of the second voltage regulating circuit of the energy supply circuit of the multi-node intelligent wiring harness system with adjustable configuration of the present invention.

[0070] In this embodiment, the power pin of the primary interaction node is connected to an external power source via a power supply circuit. The power supply circuit includes a first voltage regulation circuit, an enable circuit, and a second voltage regulation circuit. The first voltage regulation circuit is used to convert an external voltage into a first supply voltage; the enable circuit is used to transmit the first supply voltage to the second voltage regulation circuits of other secondary interaction nodes under the control of an enable signal. The second voltage regulation circuit is used to convert the first supply voltage into a second supply voltage.

[0071] For the specific structure of the first voltage regulation circuit, please refer to Figure 5a The first voltage regulating circuit includes a 48V voltage input port 501, a voltage conversion chip 502, and a 12V voltage output port 503. The first voltage regulating circuit converts the external 48V voltage into 12V voltage through the voltage conversion chip 502 and outputs it to the enabling circuit and the second voltage regulating circuit through the output port 503.

[0072] For the specific structure of the enabling circuit, please refer to Figure 5b The enabling circuit includes an enabling signal receiving port 504, a first supply voltage input port 505, an enabling signal switching circuit, and a first supply voltage output port 506. The enabling circuit receives a power supply enabling signal through the enabling signal receiving port 504 and transmits it to the enabling signal switching circuit. When the enabling signal switching circuit receives the power supply enabling signal, the first supply voltage output port 506 outputs the first supply voltage inputted by the first supply voltage input port 505. When the enabling signal switching circuit does not receive the power supply enabling signal, the first supply voltage output port 506 does not output a voltage.

[0073] For the specific structure of the second voltage regulation circuit, please refer to Figure 5c The second voltage regulation circuit includes a first power supply voltage input port 507, multiple voltage conversion chips 508, and multiple second power supply voltage output ports 509. The voltage conversion chips 508 correspond to the second power supply voltage output ports 509. Because different components of an electric vehicle have different driving voltages, multiple voltage conversion chips 508 are required to output different second power supply voltages to meet the driving requirements of different electric vehicle components.

[0074] The power supply circuit of the intelligent wiring harness system in this embodiment is equipped with a two-pole voltage regulation circuit, which first converts the 48V voltage to 12V, and then converts the 12V voltage to 3.3V-5V. Because the voltage difference before and after conversion is small, the converted voltage is greater than 20% of the pre-conversion voltage, making the entire conversion circuit cost lower and the precision control of the converted voltage easier. The setting of the enabling circuit ensures that the secondary interaction node and electric vehicle components are powered only when the primary interaction node is functioning normally, allowing the subsequent main console to obtain complete electric vehicle component data through the primary interaction node.

[0075] Please refer to Figure 6 , Figure 6 The speed detection pin of the interactive node of this embodiment is connected to the speed detection sensor of the electric vehicle through the comparison circuit to detect the tire speed.

[0076] The comparison circuit includes a sensor input port, a dual voltage comparator, a high voltage signal output port and a low voltage signal output port.

[0077] The speed detection sensor in this embodiment can be a Hall effect sensor, which generates PWM signals with high and low levels based on the magnetic field changes when the tire rotates. The dual-voltage comparator includes two comparators. One comparator has a positive input terminal 1IN+ connected to the sensor input port, receiving the PWM signal, and a negative input terminal 1IN- connected to the VR2 signal. This is connected to the interactive node's rear tire speed detection pin CH2_FREQ via the high-voltage signal output terminal 1OUT. The other comparator has a positive input terminal 2IN+ connected to the VR1 signal, and a negative input terminal 2IN- connected to the PWM signal. This is connected to the interactive node's rear tire speed detection pin CH2_LOW via the low-voltage signal output terminal 2OUT.

[0078] When the PWM signal is at a high level, the PWM signal level is higher than the VR2 signal level, and the high-voltage signal output port 1OUT outputs a high-level signal to the rear tire speed detection pin CH2_FREQ; at the same time, the PWM signal is also higher than the VR1 signal level, and the low-voltage signal output port 2OUT does not output a signal. When the PWM signal is at a low level, the PWM signal level is lower than the VR1 signal level, and the low-voltage signal output port 2OUT outputs a high-level signal to the rear tire speed detection pin CH2_LOW; at the same time, the PWM signal level is also lower than the VR2 signal level, and the high-voltage signal output port 1OUT does not output a signal. When the PWM signal level is lower than the VR2 signal level and higher than the VR1 signal level, neither the high-voltage signal output port 1OUT nor the low-voltage signal output port 2OUT outputs a high-level signal.

[0079] In this way, the interactive node can calculate the corresponding tire speed by detecting the switching frequency of the high-level signals received by the rear tire speed detection pin CH2_FREQ and the back tire speed detection pin CH2_LOW. At the same time, if the PWM signal fluctuates due to interference and the fluctuation range is between the VR1 signal and the VR2 signal, it will not trigger the high-voltage signal output port 1OUT or the low-voltage signal output port 2OUT to output a high-level signal. This can effectively ensure the accuracy and stability of the speed detection signal received by the interactive node.

[0080] Please refer to Figure 7 , Figure 7 This is a schematic diagram of the master control circuit of the adjustable multi-node intelligent wiring harness system of the present invention. The master control pins of the interactive nodes of this embodiment are connected to the main console via the master control circuit for transmitting and receiving master control signals. The master control pins include the master control transmit pin K_TXD2 and the master control receive pin K_RXD2.

[0081] The main control circuit includes a first NPN transistor Q1, a second NPN transistor Q2 and an N-channel field effect transistor Q3;

[0082] The base of the first NPN transistor Q1 is connected to the master control transmit pin K_TXD2, the emitter of the first NPN transistor Q1 is grounded, and the collector of the first NPN transistor Q1 is connected to the base of the second NPN transistor Q2 and a 3.3V power supply. The emitter of the second NPN transistor Q2 is grounded, and the collector of the second NPN transistor Q2 is connected to the signal transceiver terminal YXT_TXD+RXD of the master control station and a 5V power supply. The gate of the N-channel field effect transistor Q3 is connected to the 3.3V power supply, the source of the N-channel field effect transistor Q3 is connected to the master control receive pin K_RXD2, and the drain of the N-channel field effect transistor Q3 is connected to the signal transceiver terminal YXT_TXD+RXD of the master control station.

[0083] When an interactive node sends a high-level signal to the console via the master control transmit pin K_TXD2, the collector and emitter of the first NPN transistor Q1 are turned on, while the second NPN transistor Q2 is turned off. Therefore, the console's signal transceiver YXT_TXD+RXD is in a high-level state due to the 5V power supply. When an interactive node sends a low-level signal to the console via the master control transmit pin K_TXD2, the first NPN transistor Q1 is turned off, while the collector and emitter of the second NPN transistor Q2 are turned on. Therefore, the console's signal transceiver YXT_TXD+RXD is grounded through the second NPN transistor Q2 and is in a low-level state. This allows the console to receive the data signal transmitted by the interactive node via the master control transmit pin K_TXD2.

[0084] When the master control receive pin K_RXD2 receives a signal from the console via the signal transceiver terminal YXT_TXD+RXD, the N-channel FET Q3, powered by the 3.3V power supply, conducts. The console's signal is directly transmitted to the master control receive pin K_RXD2 via the drain and source of N-channel FET Q3. While the master control receive pin K_RXD2 is receiving a signal, the master control transmit pin K_TXD2 remains high, ensuring that the second NPN transistor Q2 is in the off state, preventing it from affecting the console's signal.

[0085] In the master control circuit of this embodiment, the interactive node and the master console use the same data channel for both sending and receiving data. When the master console is receiving data, the interactive node's master control receive pin K_RXD2 does not generate any interference signals (this pin only receives signals and can verify the data transmitted by the master control transmit pin K_TXD2). When the master console is transmitting data, the interactive node's master control transmit pin K_TXD2 remains in a high-level state, preventing the second NPN transistor Q2 from affecting the transmitted data. As a result, the master control circuit of this embodiment has a simpler structure and lowers construction costs.

[0086] Please refer to Figure 8 , Figure 8 The schematic diagram of the control circuit of the adjustable multi-node intelligent wiring harness system of the present invention is shown in FIG. The signal control pin of the interactive node of this embodiment is connected to the control device of the electric vehicle through the control circuit to send a driving signal to the control device.

[0087] The control circuit includes a third NPN transistor Q4 and a first PNP transistor Q5; the base of the third NPN transistor Q4 is connected to the signal control pin, the emitter of the third NPN transistor Q4 is grounded, the collector of the third NPN transistor Q4 is connected to the base of the first PNP transistor Q5, the emitter of the first PNP transistor Q5 is connected to the power supply, and the collector of the first PNP transistor Q5 is connected to the control device.

[0088] When the third NPN transistor Q4 receives a high-level signal from the signal control pin, it turns on, pulling down the base voltage of the first PNP transistor Q5. This causes the emitter and collector of the first PNP transistor Q5 to conduct, and the 48V power supply drives the control device to operate. When the third NPN transistor Q4 receives a low-level signal from the signal control pin, it turns off, turning off the first PNP transistor Q5 as well, and the control device stops operating.

[0089] The control circuit drives the driving signal of the control device through the small signal of the signal control pin. The first PNP transistor Q5 is normally in the cut-off state. When an abnormality occurs in the control circuit, the non-working state of the control device can be better ensured to avoid abnormal startup of the control device.

[0090] Please refer to Figure 9 , Figure 9 The circuit diagram of the detection circuit of the adjustable multi-node intelligent wiring harness system of the present invention is shown in FIG. The signal detection pin of the interactive node of this embodiment is connected to the detection device of the electric vehicle through the detection circuit to receive the signal of the detection device.

[0091] The detection circuit includes a fourth NPN transistor Q6; the base of the fourth NPN transistor Q6 is connected to a 12V power supply and is connected to a detection device through a diode; the emitter of the fourth NPN transistor Q6 is grounded, and the collector of the fourth NPN transistor Q6 is connected to a 3.3V power supply and a signal detection pin R_BRAKE_DET, respectively.

[0092] When the detection device is at a high level, the fourth NPN transistor Q6 is turned on by the 12V power supply, and the signal detection pin R_BRAKE_DET is grounded through the fourth NPN transistor Q6; when the detection device is at a low level, the base voltage of the fourth NPN transistor Q6 is pulled low, the fourth NPN transistor Q6 is in the cut-off state, and the signal detection pin R_BRAKE_DET is pulled high by the 3.3V power supply, so that the interactive node can detect the low level state of the detection device through the signal detection pin R_BRAKE_DET.

[0093] The detection circuit confirms whether the detection device is working normally through the interruption of small signals, and the detection result is more accurate and timely.

[0094] The interactive nodes of the intelligent wiring harness system of this embodiment utilize different circuits based on different device types (control devices, detection devices, and interaction devices) to collect, control, or exchange data, thereby increasing the diversity of detectable electric vehicle components. Each interactive node in the system operates as an independent, autonomous unit, enabling peer-to-peer communication between them through unique identifiers. All interactive nodes can be configured as master nodes. Interactive nodes utilize time-aware scheduling based on the IEEE 802.1Qbv standard, ensuring that each node completes its transmission within 50 milliseconds. Each interactive node can be upgraded and automatically report fault information via the bus.

[0095] Traditional wiring harness systems route wiring to each electric vehicle component individually. The intelligent wiring harness system of this embodiment supports mounting multiple interactive nodes and interconnecting devices through a bus network, reducing the weight and cost of the electric vehicle wiring harness. This intelligent wiring harness system uses differential signal transmission, encoding logic signals using voltage differences to completely offset common-mode noise interference. Furthermore, the intelligent wiring harness system of this embodiment supports hot-swappable interactive nodes, eliminating the need for rewiring or reconfiguration of new electric vehicle components. Communication data from the entire vehicle's components can be obtained through a single interface, increasing fault location efficiency by over 80%.

[0096] The present invention provides an adjustable multi-node intelligent wiring harness system with a main interaction node and multiple secondary interaction nodes. Users can set the main interaction node and the secondary interaction node at reasonable positions of the electric vehicle. Each interaction node can realize interaction with various devices of the electric vehicle. Subsequently, the detection device, control device and interaction device of the electric vehicle are respectively connected to the adjacent main interaction node or secondary interaction node to realize corresponding data control and data feedback. The connection line can be adjusted and configured based on the actual situation of the electric vehicle, which simplifies the wiring setting and avoids interference between wiring harnesses. At the same time, each interaction node can conveniently expand and maintain the wiring harness; it effectively solves the problem that the existing electric vehicle has a large weight of the entire wiring harness system and poor anti-interference ability of the wiring harness system due to more wiring, and the wiring harness system has poor scalability and is difficult to maintain.

[0097] As used herein, the terms "component," "module," "system," "interface," "process," and the like are generally intended to refer to a computer-related entity: hardware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable application, a thread of execution, a program, and / or a computer. By way of illustration, both an application running on a controller and the controller can be components. One or more components can reside within a process and / or thread of execution, and a component can be localized on one computer and / or distributed between two or more computers.

[0098] Furthermore, although the present disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding this specification and the accompanying drawings. The present disclosure includes all such modifications and variations and is limited only by the scope of the appended claims. In particular, with respect to the various functions performed by the aforementioned components (e.g., elements, resources, etc.), terms used to describe such components are intended to correspond to any component (unless otherwise indicated) that performs the designated function of the component (e.g., which is functionally equivalent), even if structurally not equivalent to the disclosed structure that performs the function in the exemplary implementations of the present disclosure shown herein. Furthermore, although particular features of the present disclosure have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations, as may be desirable and advantageous for a given or particular application. Furthermore, to the extent that the terms "include," "have," "contain," or variations thereof are used in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term "comprising."

[0099] The functional units in the embodiments of the present invention may be integrated into a single processing module, each unit may exist physically separately, or two or more units may be integrated into a single module. The aforementioned integrated module may be implemented in the form of hardware or a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium. The aforementioned storage medium may be a read-only memory, a magnetic disk, or an optical disk, etc. The aforementioned devices or systems may execute the methods in the corresponding method embodiments.

[0100] In summary, although the present invention has been disclosed above by way of embodiments, the serial numbers preceding the embodiments are used for ease of description only and do not limit the order of the embodiments of the present invention. Furthermore, the above embodiments are not intended to limit the present invention. Persons skilled in the art may make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A multi-node intelligent wiring harness system with adjustable configuration, characterized in that: It includes a primary interaction node and at least one secondary interaction node, wherein the primary interaction node and the at least one secondary interaction node are connected in sequence; The primary interaction node and the secondary interaction node both include: Node connection module, used to interact with adjacent interaction nodes; A debugging module, configured to set functions of the interactive node; and Configuration function module, used to configure different adjustable functions; The configuration function module includes: The speed detection pin is connected to the speed detection sensor of the electric vehicle to detect the tire speed; a signal control pin connected to a control device of the electric vehicle and used to send a drive signal to the control device; A signal detection pin, connected to a detection device of the electric vehicle, and configured to receive a signal from the detection device; A signal interaction pin, connected to an interactive device of the electric vehicle, for performing interactive operations with the interactive device; The main interaction node further includes: a power supply enabling module, configured to provide power supply enabling signals to all components of the electric vehicle and the secondary interactive node; and A main control module, connected to the main console of the electric vehicle, for sending and receiving main control signals; The speed detection pins include a front tire speed detection pin and a rear tire speed detection pin; The signal control pins include a headlight control pin, a horn control pin, a signal light control pin and an anti-skid control pin; The signal detection pins include a brake detection pin and a fingerprint lock detection pin; and The signal interaction pins include instrument interaction pins and radar interaction pins.

2. The adjustable multi-node intelligent wiring harness system according to claim 1, characterized in that: The multi-node intelligent wiring harness system includes a front interaction node and a rear interaction node; wherein the front interaction node is a primary interaction node and the rear interaction node is a secondary interaction node; The configuration function module of the front interaction node includes the main control pin, the front tire speed detection pin, the headlight control pin, the horn control pin, the brake detection pin, the fingerprint lock detection pin, the instrument interaction pin and the reserved pin; The configuration function module of the rear interaction node includes the rear tire speed detection pin, the signal light control pin, the anti-skid control pin, the radar interaction pin and a reserved pin.

3. The adjustable multi-node intelligent wiring harness system according to claim 1, characterized in that: The multi-node intelligent wiring harness system includes a front interaction node, a middle interaction node and a rear interaction node; wherein the front interaction node is a primary interaction node, and the middle interaction node and the rear interaction node are secondary interaction nodes; The configuration function module of the front interaction node includes a main control pin, a brake detection pin, an instrument interaction pin, and a reserved pin; The configuration function module of the middle interaction node includes the front tire speed detection pin, the headlight control pin, the horn control pin, the fingerprint lock detection pin and the reserved pin; The configuration function module of the rear interaction node includes a rear tire speed detection pin, a signal light control pin, an anti-skid control pin, a radar interaction pin, and a reserved pin.

4. The adjustable multi-node intelligent wiring harness system according to claim 1, characterized in that: The main interaction node is an MCU chip; The MCU chip includes: A power pin, used to connect to an external power supply through an energy supply circuit; A main control pin, connected to the main console via a main control circuit, for transmitting and receiving main control signals; Power supply enable pin, providing enable signal to the power supply of other adjacent interactive nodes; A node connection pin is connected to a node connection pin of an adjacent interaction node; Debug pin, used to provide a debug interface; An output pin, used to output current performance data of the electric vehicle; A speed detection pin, connected to a speed detection sensor of the electric vehicle via a comparison circuit, for detecting tire speed; a signal control pin connected to a control device of the electric vehicle through a control circuit, and used to send a drive signal to the control device; A signal detection pin, connected to a detection device of the electric vehicle through a detection circuit, and used to receive a signal from the detection device; The signal interaction pin is connected to the interaction device of the electric vehicle and is used for performing interaction operations with the interaction device.

5. The adjustable multi-node intelligent wiring harness system according to claim 4, characterized in that: The energy supply circuit includes: a first voltage regulating circuit, configured to convert an external voltage into a first energy supply voltage; an enabling circuit, configured to transmit the first energy supply voltage to a second voltage regulating circuit of another secondary interactive node under the control of the enabling signal; The second voltage regulating circuit is configured to convert the first energy supply voltage into a second energy supply voltage.

6. The multi-node intelligent wiring harness system with adjustable configuration according to claim 4, characterized in that: The comparison circuit includes a dual voltage comparator; The input end of the dual voltage comparator inputs the output voltage of the speed detection sensor, the output end of the dual voltage comparator outputs the high-voltage switching frequency and the low-voltage switching frequency of the output voltage, and the MCU chip calculates the tire speed based on the high-voltage switching frequency and the low-voltage switching frequency.

7. The multi-node intelligent wiring harness system with adjustable configuration according to claim 4, characterized in that: The main control pins include a main control transmitting pin and a main control receiving pin; the main control circuit includes a first NPN transistor, a second NPN transistor and an N-channel field effect transistor; The base of the first NPN transistor is connected to the main control transmitting pin, the emitter of the first NPN transistor is grounded, the collector of the first NPN transistor is connected to the base of the second NPN transistor and the power supply respectively, the emitter of the second NPN transistor is grounded, and the collector of the second NPN transistor is connected to the signal transceiver terminal of the main console; The gate of the N-channel field effect transistor is connected to a power supply, the source of the N-channel field effect transistor is connected to a main control receiving pin, and the drain of the N-channel field effect transistor is connected to a signal transceiver terminal of the main console.

8. The multi-node intelligent wiring harness system with adjustable configuration according to claim 4, characterized in that: The control circuit includes a third NPN transistor and a first PNP transistor; The base of the third NPN transistor is connected to the signal control pin, the emitter of the third NPN transistor is grounded, the collector of the third NPN transistor is connected to the base of the first PNP transistor, the emitter of the first PNP transistor is connected to the power supply, and the collector of the first PNP transistor is connected to the control device.

9. The multi-node intelligent wiring harness system with adjustable configuration according to claim 4, characterized in that: The detection circuit includes a fourth NPN transistor; The base of the fourth NPN transistor is connected to the first power supply and is connected to the detection device through a diode; the emitter of the fourth NPN transistor is grounded, and the collector of the fourth NPN transistor is connected to the second power supply and the signal detection pin respectively.

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