An intelligent light system integrating charging port cover opening and closing state detection and light control

Abstract

The utility model relates to the field of automobile electronic technology discloses an integrated charging port cover opening and closing state detection and light control intelligent light system, it includes magnetic induction component, is configured as detecting the magnetic field change of charging port cover and exports high low level signal, on off signal or different resistance value signal, transmits the signal to the car control module through hard wire PIN4, main chip is electrically connected with magnetic induction component, and is connected in -vehicle power through PIN1 and PIN2, the main chip is as signal processing unit and power drive unit, and outputs PWM electric signal to light component. The utility model discloses an integrated magnetic induction component and light control component, utilize LIN bus and hard wire transmission signal, has realized high integration, low power consumption, high reliability's charging port cover opening and closing state detection and light control intelligent light system, has simplified the system design significantly.

Description

Technical Field

[0001] This utility model relates to the field of automotive electronics technology, and in particular to an intelligent lighting system that integrates charging port cover opening / closing status detection and lighting control. Background Technology

[0002] In existing technologies, the opening and closing status detection of the charging port cover usually uses mechanical contact switches, which have problems such as easy wear, short lifespan, and inability to be integrated.

[0003] Due to the mechanical movement characteristics of contact switches, they cannot be integrated into a single product with lighting modules that require lampshade fixation and dust and water resistance. This makes the door opening and closing status detection and lighting control two completely independent systems, resulting in problems such as high cost, complex design and installation, poor integration, easy jamming, and poor contact.

[0004] Therefore, an integrated intelligent lighting system is proposed, which uses magnetic induction to replace the traditional mechanical contact switch. This integrates the charging port cover opening / closing status detection and the lighting control system on the same circuit board, eliminating the need for mechanical contact movement and improving reliability. At the same time, the internal circuit design shares a power supply and controls the light through the magnetic induction component, which not only improves integration and reduces costs, but also solves the problems of reliability and complex design and installation of existing technologies. Utility Model Content

[0005] This invention proposes an intelligent lighting system that integrates charging port cover opening / closing status detection and lighting control, thus solving the problems in the background technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A smart lighting system integrating charging port cover opening / closing status detection and lighting control includes: The magnetic induction component is configured to detect changes in the magnetic field of the charging port cover and output a hard-wire signal, which is then transmitted to the vehicle control module via a hard wire. This signal can be a high or low level signal, an on / off signal, or a signal with different resistance values, etc. Simultaneously, it serves as the enable signal for turning the light on and off, and is connected to the negative terminal of the light assembly on the board; the main chip is electrically connected to the magnetic induction component. The main chip acts as a signal processing unit, processing the lighting control information of the bus components. At the same time, it acts as a power driving unit, outputting PWM electrical signals to the lighting components to make them light up and turn off according to the requirements of the vehicle control module. The vehicle control module is configured to: parse the hard-wired signal of the magnetic induction component to determine the opening and closing status of the charging port cover, and encapsulate the light control command into a LIN frame command and transmit it to the main chip.

[0007] If the status received from the magnetic induction component is "off", then a light-off command is sent to the main chip MCU via the bus component; If the status received from the magnetic induction component is "on", then the light enable command and RGB parameters are sent to the main chip MCU through the bus component. The RGB lighting component's driver unit is integrated inside the main chip MCU. It responds to the lighting enable command and outputs three independent PWM signals (R / G / B). The frequency and current value of the PWM signals are dynamically adjusted by the RGB parameters. The RGB lighting component is connected to the RGB output pin of the main chip MCU, and displays different colors and brightness according to the PWM signal.

[0008] Preferably, the magnetic induction component is integrated with the main chip on the same PCB board, sharing the power supply circuit (VBAT) and ground (GND). The RGB parameters include color encoding, flashing frequency, and brightness level, which are dynamically generated by the vehicle control module based on the vehicle status.

[0009] Preferably, the magnetic induction component is directly connected to the vehicle control module via a hardwire, configured as follows: The vehicle control module is activated by a level transition or a change in resistance value. The charging port cover status signal is transmitted directly via a hard wire. The vehicle control module determines the opening and closing status of the cover based on the hard-wired signal and sends lighting control commands to the MCU via the LIN bus.

[0010] Preferably, the hard-wired signal includes any of the following forms: When a high level represents the on state and a low level represents the off state, or when a high level represents the off state and a low level represents the on state; On and off; The first resistance value (e.g., 10kΩ) represents the on state, and the second resistance value (e.g., 100kΩ) represents the off state, or the first resistance value (e.g., 10kΩ) represents the off state, and the second resistance value (e.g., 100kΩ) represents the on state.

[0011] Preferably, the RGB LED driving unit of the main chip MCU includes: Three independent current sources and a PWM frequency regulator; The lighting component RGB is a common cathode high-brightness LED, with its anode connected to the (R / G / B) pins of the main chip MCU via current-limiting resistors, and its negative terminal connected to the magnetic induction component.

[0012] The beneficial effects of this utility model are: the integrated design of the magnetic induction component and the lighting control replaces the mechanical switch, improving lifespan and reliability; the hybrid mode of hard wire + LIN bus achieves low power consumption and high efficiency control; and the external interface is simplified, reducing system complexity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an intelligent lighting system that integrates charging port cover opening / closing status detection and lighting control, as proposed in this utility model. Figure 2 This is a schematic diagram of the prior art for a charging port cover opening / closing status detection and lighting control system proposed in this utility model; Figure 3 This is a system block diagram of a specific embodiment of an intelligent lighting system that integrates charging port cover opening / closing status detection and lighting control proposed in this utility model. Figure 4 This is a system block diagram of a low-cost hard-wired scheme for a specific embodiment of an intelligent lighting system that integrates charging port cover opening / closing status detection and lighting control proposed in this utility model. Figure 5 This invention presents a system block diagram of a low-cost hard-wired solution for a prior art charging port cover opening / closing status detection and lighting control system.

[0014] The components in the diagram are labeled as follows: 1. Main chip, 2. Bus component, 3. Lighting component, 4. Magnetic induction component, 5. Vehicle control module, 6. Contact switch. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example 1

[0016] Reference Figure 1 and Figure 3 A smart lighting system integrating charging port cover opening / closing status detection and lighting control, comprising: The magnetic induction component 4 is configured to detect changes in the magnetic field of the charging port cover and output high and low level signals; the signal is transmitted to the vehicle control module 5 through the hard wire PIN4. This signal can be a high or low level signal, an on / off signal, or a signal with different resistance values, etc. The main chip 1 is electrically connected to the magnetic induction component 4; Main chip 1 is connected to the vehicle's power supply via PIN1 and PIN2; The main chip 1 serves as a signal processing unit to process lighting control information, and also as a power drive unit to output PWM electrical signals to the lighting component 3, so that it can be turned on and off according to the requirements of the vehicle control module 5. The vehicle control module 5 is configured to: parse the hard wire signal of the magnetic induction component 4 to determine the opening and closing status of the charging port cover, and encapsulate the light control command into a LIN frame command and transmit it to the main chip 1 through PIN3.

[0017] If the status received from the magnetic induction component 4 is "off", then a light-off command is sent to the main chip MCU via PIN3; If the status received from the magnetic induction component 4 is "on", then send the light enable command and RGB parameters to the main chip MCU via PIN3; The main chip acts as a signal processing unit, processing the lighting control information of the bus components. At the same time, it acts as a power driving unit, outputting PWM electrical signals to the lighting components to make them light up and turn off according to the requirements of the vehicle control module. The vehicle control module is configured to: parse the hard-wired signal of the magnetic induction component to determine the opening and closing status of the charging port cover, and encapsulate the light control command into a LIN frame command and transmit it to the main chip.

[0018] If the status received from the magnetic induction component is "off", then a light-off command is sent to the main chip MCU via the bus component; If the status received from the magnetic induction component is "on", then the light enable command and RGB parameters are sent to the main chip MCU through the bus component.

[0019] The driver unit for the 3RGB lighting component is integrated inside the main chip MCU. It responds to the lighting enable command and outputs three independent PWM signals (R / G / B). The frequency and current value of the PWM signals are dynamically adjusted by the RGB parameters. The RGB3 lighting component is connected to the RGB output pin of the main chip MCU and displays different colors and brightness according to the PWM signal.

[0020] In this embodiment, the magnetic induction component 4 and the main chip 1 are integrated on the same PCB board and share the power supply circuit (VBAT) and ground (GND). The RGB parameters include color encoding, flashing frequency, and brightness level, which are dynamically generated by the vehicle control module 5 based on the vehicle status.

[0021] The magnetic induction component 4 is directly connected to the vehicle control module 5 via a PIN4 hardwire, configured as follows: The in-vehicle control module is activated by level transitions, resistance changes, or switching on / off states. The charging port cover status signal is transmitted directly via a hard wire. The vehicle control module 5 determines the opening and closing status of the cover based on the hard-wired signal and sends lighting control commands to the MCU via the LIN bus.

[0022] The magnetic induction component 4 is used to achieve all-weather, low-power monitoring. The hard-wired signal includes any of the following forms: A high level indicates the on state, and a low level indicates the off state; On and off; For example, a first resistance value of 10kΩ represents the on state, and a second resistance value of 100kΩ represents the off state.

[0023] The RGB LED driving unit of the main chip MCU1 includes: Three independent current sources and a PWM frequency regulator; The lighting component RGB3 is a common cathode high-brightness LED, and its anode is connected to the (R / G / B) pins of the main chip MCU through current-limiting resistors.

[0024] A method for controlling the lights on a vehicle charging port cover includes the following steps: The magnetic induction component 4 detects the position of the charging port cover in real time and outputs a signal to the vehicle control module 5. The vehicle control module generates RGB control parameters based on the cover position signal fed back by the magnetic induction component 4 and feeds them back to the MCU via the LIN bus; The MCU parses the RGB parameters and outputs three adjustable PWM signals to drive the RGB LED; Figure 2 In existing technical solutions, existing lighting components have fixed lamp covers and cannot integrate moving parts such as contact switches 6; Figure 3 In the process, the technology is improved: the magnetic induction component 4, which does not require moving contact, replaces the mechanical contact switch 6. It is patched on the same circuit board as the lamp assembly and each connects to the vehicle control module; the external interface of the product requires at least four lines: power, ground, LIN bus, and door position signal line.

[0025] Working principle: The magnetic induction component 4 wakes up the vehicle control module 5 by switching between high and low levels. At the same time, it outputs high and low level signals or converts them into different resistance values, which are output through PIN4 to wake up the vehicle control module. The vehicle control module 5 determines the opening and closing state of the charging port cover based on the input PIN4 signal. If it is closed, it sends information to the chip MCU1 through the PIN3 LIN bus to make the light component 3 not work. If it is open, it sends information to the chip MCU1 through the LIN bus. After receiving the LIN bus information, the chip MCU1 processes it internally and outputs three RGB channels with different frequencies and currents to enable the light component 3 to emit light of different brightness and color. The MCU1 chip, lighting component 3, and magnetic induction component 4 are integrated on a single circuit board, sharing a power supply circuit. However, sensing and control are separated; sensing is transmitted via hardwired connections, while control is handled by a LIN bus. The low-power, microampere-level magnetic induction component 4 serves as the wake-up power source, waking up the MCU1 chip and the vehicle control module 5, thus achieving all-weather monitoring and sensing with minimal power consumption. Example 2

[0026] A charging port cover opening / closing status detection system, and a low-cost hard-wired lighting control system, refer to Figure 5 Traditional charging port cover assemblies contain two parts: an indicator light and a contact switch, used to detect the open / closed state of the cover. like Figure 4 As shown, to further reduce the cost of the intelligent lighting system of the present invention, the main chip MCU1 is removed and the driving unit of the RGB lighting component is directly implemented by the vehicle control module 5. The vehicle control module 5 outputs three independent PWM signals (R / G / B), and the frequency and current value of the PWM signals are dynamically adjusted by the RGB parameters. The 3RGB lighting component is connected to the RGB output pin of the external vehicle control module 5, and displays different colors and brightness according to the PWM signal.

[0027] Figure 4 The light component 3 described in the text can be an RGB indicator light or a single-color light, so the RGB three-wire can be changed to a single wire; like Figure 4 As shown, the two parts are combined into one, and the magnetic induction principle is used to replace the contact switch. While the magnetic induction component 4 outputs a signal, it can also be connected to the negative terminal of the light component 3 through a hardware circuit built with other electronic components, so as to enable the light control. That is, the dual control of the vehicle control module and the magnetic induction component is realized.

[0028] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An intelligent lighting system integrating charging port cover opening / closing status detection and lighting control, characterized in that, include: The magnetic induction component (4) is configured to detect changes in the magnetic field of the charging port cover and output high and low level signals, on / off signals or signals with different resistance values, and transmit the signals to the vehicle control module (5) through the hard wire PIN4. The main chip (1) is electrically connected to the magnetic induction component (4) and connected to the vehicle power supply through PIN1 and PIN2; the main chip (1) serves as a signal processing unit and a power driving unit, and outputs PWM electrical signals to the lighting component (3). The vehicle control module (5) is configured to analyze the hard wire signal of the magnetic induction component (4) to determine the opening and closing status of the charging port cover, and encapsulate the light control command into a LIN frame command and transmit it to the main chip (1) through PIN3. The lighting component (3) is connected to the RGB output pin of the main chip (1) and displays different colors and brightness according to the PWM signal.

2. The intelligent lighting system according to claim 1, characterized in that, The magnetic induction component (4) is integrated with the main chip (1) on the same PCB board, sharing the power supply circuit (VBAT) and ground (GND).

3. The intelligent lighting system according to claim 1, characterized in that, The vehicle control module (5) is configured as follows: If the status received from the magnetic induction component (4) is closed, then a light-off command is sent to the main chip (1) via PIN3; If the state received from the magnetic induction component (4) is "on", then send the light enable command and RGB parameters to the main chip (1) via PIN3.

4. The intelligent lighting system according to claim 3, characterized in that, The RGB parameters include color encoding, flashing frequency and brightness level, which are dynamically generated by the vehicle control module (5) based on the vehicle status.

5. The intelligent lighting system according to claim 1, characterized in that, The hard-wired signal includes any of the following forms: High and low levels represent the on or off state, respectively; On and off; The first resistance value and the second resistance value represent the on or off state, respectively.

6. The intelligent lighting system according to claim 1, characterized in that, The RGB LED driving unit of the main chip (1) includes: Three independent current sources and a PWM frequency regulator.

7. The intelligent lighting system according to claim 1, characterized in that, The lighting component (3) is a common cathode high-brightness LED, and its anode is connected to the R / G / B pins of the main chip (1) through a current-limiting resistor.

Images