Driving device for controlling multi-load operation and vehicle lamp control system

Abstract

The invention relates to a driving device for controlling multi-load operation and a vehicle lamp control system.The driving device comprises a microprocessor, a first transceiver and a driving module, the first transceiver and the driving module are connected with the microprocessor, the first transceiver is connected with a vehicle body controller, and the first transceiver is used for receiving a first signal sent by the vehicle body controller; the driving module is also connected with a plurality of loads; and the microprocessor is used for outputting a second signal according to the first signal, transmitting the second signal to each load by adopting a CAN bus protocol and simultaneously controlling each load to operate. According to the driving device, through the microprocessor as well as the first transceiver and the driving module which are connected with the microprocessor, the simultaneous operation of a plurality of loads is controlled by one microprocessor, the automobile rear combination lamp is provided with three or more independent lamp bodies, and only one microprocessor is arranged at the rear lamp controller; any two rear combination lamps in the left rear combination lamp, the right rear combination lamp and the middle penetrating lamp do not need to be provided with microprocessors, and waste of automobile CAN communication network resources is avoided.

Description

Technical Field

[0001] The present application belongs to the technical field of automobile lighting and signal lights, and in particular to a driving device for controlling the operation of multiple loads and a vehicle light control system. Background Art

[0002] With the improvement of automobile intelligence, the popularization of CAN communication network and rear through-lights, the lighting system is also developing in the direction of networking. With the increase of new energy vehicle components, the load rate of automobile CAN communication network is getting higher and higher. How to save and optimize the CAN resources of the vehicle body is an urgent need for current technological development.

[0003] The existing automobile CAN communication network is composed of multiple network nodes that respectively control the lighting operation of the left and right rear combination lights and the center through light of the automobile, resulting in a waste of automobile CAN communication network resources. Summary of the invention

[0004] An embodiment of the present application provides a driving device and a vehicle light control system for controlling the operation of multiple loads to solve the problem that the existing vehicle CAN communication network is composed of multiple network nodes that respectively control the lighting operation of the left and right rear combination lights of the vehicle and the center through-light, resulting in a waste of vehicle CAN communication network resources.

[0005] An embodiment of the present application provides a driving device for controlling the operation of multiple loads, comprising:

[0006] A first transceiver, used to connect to the vehicle body controller, and the first transceiver is used to receive a first signal sent by the vehicle body controller;

[0007] a microprocessor, configured to be connected to the first transceiver, the microprocessor being configured to receive the first signal and output a second signal according to the first signal;

[0008] A driving module, used to be connected to the microprocessor, and the driving module is also connected to a plurality of loads;

[0009] Wherein, the microprocessor transmits the second signal to each of the loads through the driving module using the CAN bus protocol and controls the operation of each of the loads at the same time.

[0010] Optionally, the driving module includes a transceiver connected to each of the loads.

[0011] Optionally, if the driving module is connected to three loads, the corresponding driving module includes a second transceiver, a third transceiver and a fourth transceiver respectively connected to the three loads.

[0012] Optionally, the three loads are respectively a first load, a second load and a third load, the second transceiver is connected to the first load using a CAN bus protocol, the third transceiver is connected to the second load using a CAN bus protocol, and the fourth transceiver is connected to the third load using a CAN bus protocol.

[0013] Optionally, the first load is a left rear combination lamp, the second load is a right rear combination lamp, and the third load is a middle through lamp.

[0014] Optionally, the second transceiver, the third transceiver and the fourth transceiver are all CAN transceivers.

[0015] Optionally, the first transceiver is an SBC transceiver or a CAN transceiver.

[0016] Optionally, the driving device for controlling the operation of multiple loads includes a power module connected to the microprocessor, and the power module is used to supply power to the microprocessor.

[0017] Optionally, a low voltage dropout regulator for voltage stabilization is provided between the power module and the microprocessor.

[0018] On the one hand, an embodiment of the present application provides a vehicle light control system, including the above-mentioned driving device for controlling multi-load operation.

[0019] An embodiment of the present application provides a driving device and a headlight control system for controlling the operation of multiple loads. The driving device for controlling the operation of multiple loads uses a microprocessor and a first transceiver and a driving module connected to the microprocessor to achieve simultaneous operation of multiple loads controlled by one microprocessor. Since the rear combination lamp of an automobile has three (or more) independent lamp bodies, only one microprocessor needs to be placed in the headlight control system of the automobile. Any two rear combination lamps among the left rear combination lamp, the right rear combination lamp and the middle through lamp do not need to be placed with a microprocessor, which can greatly save the cost of the headlight control system of the automobile, avoid the waste of automobile CAN communication network resources, and solve the problem that the existing automobile CAN communication network is composed of multiple network nodes to respectively control the lighting operation of the left lamp, the right lamp and the middle through lamp of the rear combination lamp of the automobile, resulting in the waste of automobile CAN communication network resources.

[0020] The vehicle headlight control system can achieve the goal of controlling multiple loads to run simultaneously by one microprocessor through a driving device that controls the operation of multiple loads, which can greatly save the cost of the vehicle headlight control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution in an embodiment of the present application, the following briefly introduces the drawings required for use in the description of the embodiment. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

[0022] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same figure numbers represent the same parts.

[0023] Figure 1 A schematic diagram of a framework of a drive device for controlling multi-load operation provided in one embodiment of the present application.

[0024] Figure 2 A circuit diagram of a drive device for controlling the operation of multiple loads provided in one embodiment of the present application.

[0025] Figure 3 A circuit diagram of a drive device for controlling the operation of multiple loads provided in another embodiment of the present application. DETAILED DESCRIPTION

[0026] The technical scheme in one embodiment of the present application will be clearly and completely described below in conjunction with the drawings in one embodiment of the present application. Obviously, the described embodiment is only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0027] Patent terms:

[0028] CAN transceiver is a special chip used for CAN bus Q communication, mainly used to convert and adjust the signals between the CAN controller and the CAN bus physical layer. Its main function is to convert the digital signal output by the CAN controller into the physical signal required by the CAN bus, and convert the physical signal received on the CAN bus into a digital signal and pass it to the CAN controller for processing.

[0029] SBC is a pure integrated circuit. SBC transceiver integrates controller area network (CAN) or local interconnect network (LIN) transceiver with internal / external "power device".

[0030] Body control module (BCM), also known as body computer, is an electronic control unit (ECU) used to control the body electrical system in automotive engineering. It is one of the important components of a car. Common functions of body controller include controlling electric windows, electric rearview mirrors, air conditioning, headlights, turn signals, anti-theft locking system, central locking, defrosting device, etc. The body controller can be connected to other on-board ECUs through the bus.

[0031] A microprocessor is a central processing unit composed of one or a few large-scale integrated circuits. These circuits perform the functions of control components and arithmetic logic components. The microprocessor can complete operations such as fetching instructions, executing instructions, and exchanging information with external memory and logic components. It is the operation control part of the microcomputer.

[0032] An embodiment of the present application provides a driving device and a vehicle light control system for controlling the operation of multiple loads, so as to solve the problem that the existing vehicle CAN communication network is a waste of vehicle CAN communication network resources because multiple network nodes respectively control the lighting operation of the left and right rear combination lights of the vehicle. The vehicle light control system and the driving device for controlling the operation of multiple loads can realize the normal operation of controlling the left and right rear combination lights of the vehicle and the center through-light when only one network node of the rear combination lights is provided on the vehicle body.

[0033] Embodiment 1:

[0034] An embodiment of the present application provides a driving device for controlling the operation of multiple loads. For example, see Figure 1 , Figure 1 A schematic diagram of a framework of a drive device for controlling multi-load operation provided in one embodiment of the present application.

[0035] like Figure 1 As shown, the present invention provides a driving device for controlling the operation of multiple loads, including a microprocessor MCU and a first transceiver 10 and a driving module 20 connected to the microprocessor MCU.

[0036] It is further explained that the driving device for controlling the operation of multiple loads drives multiple loads to operate through a microprocessor MCU to control the driving module 20. In this embodiment, the driving device for controlling the operation of multiple loads is applied to the lighting system of the automobile. When the automobile body only provides one network node of the rear combination lamp through the first transceiver 10 and a microprocessor MCU, the driving module 20 can be used to drive the left lamp, the right lamp and the middle through-light of the rear combination lamp of the automobile to operate simultaneously, so that one network node (such as the microprocessor MCU) controls the normal operation of the left lamp, the right lamp and the middle through-light of the rear combination lamp of the automobile, thereby avoiding the waste of automobile CAN communication network resources.

[0037] In the embodiment of the present invention, the first transceiver 10 is used to connect to the vehicle body controller 30 , and the first transceiver 10 is used to receive a first signal sent by the vehicle body controller 30 .

[0038] It is further explained that the first transceiver 10 can be selected as an SBC transceiver or a CAN transceiver. In this embodiment, the first transceiver 10 receives the first signal sent by the vehicle body controller 30 through the CAN_BUS protocol and sends the received first signal to the microprocessor MCU.

[0039] In the embodiment of the present invention, the microprocessor MCU is used to connect to the first transceiver 10, and the microprocessor 10 is used to receive a first signal and output a second signal according to the first signal.

[0040] It is further explained that the microprocessor MCU outputs the second signal according to the first signal and transmits it to the driving module 20. In this embodiment, if the driving device for controlling the operation of multiple loads is applied to the vehicle light control system, the microprocessor MCU can be used as a CAN network node, and only one CAN network node is needed in the vehicle network to realize the control of the entire vehicle rear combination lamp.

[0041] In the embodiment of the present invention, the driving module 20 is used to connect to the microprocessor MCU, and the driving module MCU is also connected to multiple loads 40. The microprocessor MCU transmits the second signal to each load 40 through the driving module 20 using the CAN bus protocol and controls the operation of each load 40.

[0042] It is further explained that if the driving device for controlling the operation of multiple loads is applied to the automobile lighting control system, the load 40 can be the automobile rear combination lamp (such as the left rear combination lamp, the right rear combination lamp or the middle through lamp), so that the driving device for controlling the operation of multiple loads can control the simultaneous operation of multiple loads 40 through a microprocessor MCU. Because the automobile rear combination lamp has three (or more) independent lamp bodies, only one microprocessor MCU needs to be placed in the automobile lighting control system for the rear lamp control, and any two rear combination lamps, namely the left rear combination lamp, the right rear combination lamp and the middle through lamp, do not need to be placed with a microprocessor MCU, which can greatly save the cost of the automobile lighting control system.

[0043] An embodiment of the present application provides a driving device for controlling the operation of multiple loads, through a microprocessor and a first transceiver and a driving module connected to the microprocessor, to achieve simultaneous operation of multiple loads controlled by one microprocessor. Since the rear combination lamp of an automobile has three (or more) independent lamp bodies, only one microprocessor needs to be placed in the rear lamp control system of the automobile. Any two rear combination lamps among the left rear combination lamp, the right rear combination lamp and the middle through lamp do not need to be placed with a microprocessor, which can greatly save the cost of the automobile's lamp control system and avoid the waste of automobile CAN communication network resources. It solves the problem that the existing automobile CAN communication network is composed of multiple network nodes that respectively control the lighting operation of the left lamp, the right lamp and the middle through lamp of the automobile's rear combination lamp, resulting in a waste of automobile CAN communication network resources.

[0044] Figure 2 A circuit diagram of a drive device for controlling the operation of multiple loads provided in one embodiment of the present application.

[0045] like Figure 2 As shown, in one embodiment of the present invention, the driving module 20 includes a transceiver connected to each load 40 .

[0046] It is further explained that if the driving module 20 is connected to three loads 40, the corresponding driving module 20 includes a second transceiver 21, a third transceiver 22 and a fourth transceiver 23 connected to the three loads 40 respectively; the three loads are the first load 41, the second load 42 and the third load 43 respectively, the second transceiver 21 is connected to the first load 41 using the CAN bus protocol, the third transceiver 22 is connected to the second load 42 using the CAN bus protocol, and the fourth transceiver 23 is connected to the third load 43 using the CAN bus protocol. In this embodiment, if the driving device for controlling the operation of multiple loads is applied to the vehicle light control system, the first load 41 can be selected as the left rear combination lamp, the second load 42 can be selected as the right rear combination lamp, and the third load 43 can be selected as the middle through lamp. The second transceiver 21, the third transceiver 22 and the fourth transceiver 23 can all be CAN transceivers. If the microprocessor MCU is placed in the middle through-light of the rear group of lights of the car, after the microprocessor MCU receives the first lighting signal CAN_BUS (CANFD) from the body controller 30, the microprocessor MCU controls the lighting of itself (such as the middle through-light) by outputting the second signal CAN_UART, and at the same time controls the lighting of the left rear combination light and the right rear combination light according to the second signal CAN_UART.

[0047] Figure 3 A circuit diagram of a drive device for controlling the operation of multiple loads provided in another embodiment of the present application.

[0048] like Figure 3As shown, in one embodiment of the present invention, the driving device for controlling the operation of multiple loads includes a power module 50 connected to the microprocessor MCU, and the power module 50 is used to supply power to the microprocessor MCU. A low voltage dropout regulator LDO for voltage stabilization is provided between the power module 50 and the microprocessor MCU.

[0049] It is further explained that the power module 50 is used to provide a 3.3V or 5V DC voltage to the microprocessor MCU.

[0050] Embodiment 2:

[0051] The present invention provides a vehicle light control system, comprising the above-mentioned driving device for controlling the operation of multiple loads.

[0052] It is further explained that the content of the driving device for controlling the operation of multiple loads has been described in the first embodiment, and the content of the driving device for controlling the operation of multiple loads will not be repeated in this embodiment. The headlight control system of the automobile can realize that one microprocessor controls multiple loads to operate simultaneously through the driving device for controlling the operation of multiple loads, which can greatly save the cost of the headlight control system of the automobile. For example: if the driving device for controlling the operation of multiple loads is applied to the headlight control system of the automobile, the load 40 can be the rear combination lamp of the automobile (such as the left rear combination lamp, the right rear combination lamp or the middle through lamp), so that the driving device for controlling the operation of multiple loads controls the simultaneous operation of multiple loads 40 through one microprocessor MCU. Because the rear combination lamp of the automobile has three (or more) independent lamp bodies, only one microprocessor MCU is needed for the rear lamp control in the headlight control system of the automobile, and any two rear combination lamps of the left rear combination lamp, the right rear combination lamp and the middle through lamp do not need to be placed with a microprocessor MCU, which can greatly save the cost of the headlight control system of the automobile.

[0053] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0054] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0055] The above is a detailed introduction to a drive device for controlling the operation of multiple loads provided by an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A driving device for controlling the operation of multiple loads, characterized in that: include: A first transceiver, used to connect to the vehicle body controller, and the first transceiver is used to receive a first signal sent by the vehicle body controller; a microprocessor, configured to be connected to the first transceiver, the microprocessor being configured to receive the first signal and output a second signal according to the first signal; A driving module, used to be connected to the microprocessor, and the driving module is also connected to a plurality of loads; Wherein, the microprocessor transmits the second signal to each of the loads through the driving module using the CAN bus protocol and controls the operation of each of the loads at the same time.

2. The driving device for controlling multi-load operation according to claim 1, characterized in that: The driving module includes a transceiver connected to each of the loads.

3. The driving device for controlling multi-load operation according to claim 2, characterized in that: If the driving module is connected to three loads, the driving module accordingly includes a second transceiver, a third transceiver and a fourth transceiver respectively connected to the three loads.

4. The driving device for controlling multi-load operation according to claim 3, characterized in that: The three loads are respectively a first load, a second load and a third load. The second transceiver is connected to the first load using a CAN bus protocol, the third transceiver is connected to the second load using a CAN bus protocol, and the fourth transceiver is connected to the third load using a CAN bus protocol.

5. The driving device for controlling multi-load operation according to claim 4, characterized in that: The first load is a left rear combination lamp, the second load is a right rear combination lamp, and the third load is a middle through lamp.

6. The driving device for controlling multi-load operation according to claim 3, characterized in that: The second transceiver, the third transceiver and the fourth transceiver are all CAN transceivers.

7. The driving device for controlling multi-load operation according to any one of claims 1 to 6, characterized in that: The first transceiver is a SBC transceiver or a CAN transceiver.

8. The driving device for controlling multi-load operation according to any one of claims 1 to 5, characterized in that: It includes a power supply module connected to the microprocessor, and the power supply module is used to supply power to the microprocessor.

9. The driving device for controlling multi-load operation according to claim 8, characterized in that: A low voltage difference regulator for voltage stabilization is arranged between the power supply module and the microprocessor.

10. A vehicle light control system, characterized in that: It comprises a driving device for controlling the operation of multiple loads as described in any one of claims 1 to 9.

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