Vehicle door controller

Abstract

The utility model belongs to the technical field of automobiles, and particularly relates to an automobile door controller, and an automobile door domain control system formed by the automobile door controller comprises a body control module (BCM) controller which is an automobile body main controller and is in bidirectional connection with the automobile door controller. The vehicle door controller is further connected with a plurality of vehicle door actuators, a vehicle window actuator, a vehicle rearview mirror actuator, a vehicle door lock actuator, a vehicle door handle actuator and a vehicle door welcome lamp actuator. The vehicle door controller is further electrically connected with a power supply module. The vehicle door controller is connected with a communication module, and the communication module comprises a CAN communication protocol module and an LIN communication protocol module. The automobile door controller has the function of uniformly controlling various and many part actuators on the automobile door. Therefore, the effects of reducing the number of integral part controllers in the automobile door control system, improving the electronic integration level and reducing the integral cost of the control system are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, and particularly relates to a door controller. Background Art

[0002] The existing automobile door controller is equipped with an actuator, which can realize the automatic opening and closing control of the automobile door. However, most of the current door controllers have a single function and are only for door control.

[0003] There are also many controllable components on each door of the automobile, such as electric door handles, electric vehicle windows, electric vehicle door locks, electric rearview mirrors, door indicators, etc. At present, it is very rare to uniformly control multiple components on the door. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a door controller to solve the technical problem that multiple components cannot be uniformly controlled, so as to achieve the unified control of multiple components on the automobile door. The number of component controllers inside the door is reduced, the electronic integration degree is improved, and at the same time, the cost of the overall control system of the automobile door is reduced.

[0005] To solve the above technical problem, the utility model provides a door controller, including:

[0006] A BCM controller, the BCM controller is connected with a door control module, and the door control module is connected with a plurality of door actuator modules, window actuator modules, vehicle rearview mirror actuator modules, door lock controllers, door light controllers and door handle controllers;

[0007] The central control drive module is also electrically connected with a power supply module;

[0008] The BCM controller is connected with a communication protocol module, and the communication protocol module includes a CAN communication module and a LIN communication module.

[0009] Further, the number of the plurality of door actuator modules is four to control the four doors of the vehicle.

[0010] Further, an overcurrent and open circuit protection module is arranged at the interface between the BCM controller and the door control module.

[0011] Further, the BCM controller is provided with an external power supply interface.

[0012] The beneficial effects of the utility model are:

[0013] 1. Connect the door control module through the BCM controller. At the same time, the door control module is connected to several door execution modules, window execution modules, vehicle rearview mirror execution modules, door lock controllers, door light controllers, and door handle controllers, enabling unified control of multiple components on the vehicle door, reducing the number of component controllers inside the door, improving electronic integration, and simultaneously reducing the cost of the overall vehicle door control system.

[0014] 2. The communication protocol module includes a CAN communication module and a LIN communication module, which can support multiple communication protocols and have stronger compatibility when communicating with the ECUs of other components.

[0015] 3. Protect the interface through the overcurrent and open-circuit protection module to improve the reliability and safety of the product.

[0016] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, provides detailed descriptions as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is the flowchart of the door controller of the present utility model;

[0019] Figure 2 is the circuit diagram of the door controller of the present utility model;

[0020] Figure 3 is the flowchart of the control process of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the objects, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions of the present utility model in conjunction with the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0022] Embodiment:

[0023] As Figures 1 to 3As shown in the figure, a door controller includes: a BCM controller, which is connected to a door control module. The door control module is connected to several door execution modules, window execution modules, vehicle rearview mirror execution modules, door lock controllers, door light controllers, and door handle controllers. Through the BCM controller, it is possible to centrally control the door execution module, window execution module, vehicle rearview mirror execution module, door lock controller, door light controller, and door handle controller of the door, thereby improving the electronic integration of the door and reducing the number of controllers used, thus reducing the overall cost of the product.

[0024] Among them, the controller formed by using the BCM controller can, according to the actual functional requirements, only need to selectively install the required drive modules to achieve diverse control requirements. Therefore, it not only improves the practicability of the product but also well controls the overall cost of the product.

[0025] Among them, the door controller is also electrically connected to a power supply module, and the power supply module uses a 12V automotive power supply system.

[0026] Among them, the door controller has multiple motor drive modules inside, supporting a driving ability of 100A current to drive various actuators connected to the outside of the door controller.

[0027] Among them, the door controller is connected to a communication protocol module, and the communication protocol module includes a CAN communication module and a LIN communication module, which has stronger compatibility when communicating with the ECUs of other components.

[0028] In this embodiment, the door control has several door actuator drive modules, which are sufficient to match the control scheme requirements of specific doors with multiple actuators.

[0029] Among them, overcurrent, overvoltage, and short-circuit protection are set at the interfaces between the door controller and all external controllers or actuators, and after the protection is triggered, the electrical connection is adaptively controlled to be open, improving the reliability and safety of the product.

[0030] In this embodiment, the door controller has an external power supply interface, which can provide stable DC power supply to external power-connected devices; at the same time, it has parameter settings for the external power supply interface to achieve constant current and constant voltage mode output, and the power management module can implement a controllable power switch function to control the power supply of some components that cannot meet the low-power consumption requirements, thereby reducing the overall power consumption of the door control system.

[0031] Among them, the software control logic flow of the door control system is as follows:

[0032] Step 1: Power on the door controller, perform program reset and data initialization program;

[0033] Step 2: After initialization is completed, read the signal status of each interface, including the level signal status of hardware such as the data communication bus, actuators, sensors, switches, etc.

[0034] Step 3: Determine whether a control instruction is received on the data communication bus of the communication protocol module. If a control instruction is received, this controller will control the corresponding actuator to act through each drive module.

[0035] If the signal status read on the signal interface has not changed, start timing to prepare to enter the low-power mode. Once the interface signal status changes, clear the timing. When the signal status on the interface has not changed continuously until the timing ends, control the entire system to enter the low-power mode, operate in a very low-power state, and wait for an external trigger signal. The trigger signal source is some specified signals on the interface. Which specific signals can be used as the trigger source needs to be determined in combination with the actual application scenario corresponding to the control system built based on this controller.

[0036] If an external trigger signal is received in the low-power mode, exit the low-power mode, clear the timing, and then determine whether a control instruction is received. If there is one, execute the instruction; if not, read the signal status and re-execute Step 1 above and the subsequent loop process.

[0037] In summary: The door control is connected to the BCM controller through a two-way bus. At the same time, the door controller is connected to several door actuators, window actuators, car rearview mirror actuators, door lock controllers, door handle actuators, and door welcome light actuators, which can simultaneously control multiple components on the car door uniformly, reduce the number of component controllers inside the door, improve the electronic integration degree, and at the same time reduce the cost of the overall control system of the car door. Through the communication protocol module including the CAN communication module and the LIN communication module, it can support multiple communication protocols and has stronger compatibility when communicating with the ECUs of other components. Through the overcurrent, overvoltage, and short-circuit protection module, the interface is protected, improving the reliability and safety of the product.

[0038] All components selected in this application are common standard components or components known to those skilled in the art. Their structures and principles can be known by those skilled in the art through technical manuals or through conventional experimental methods.

[0039] In the description of the embodiments of the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] Taking the above ideal embodiments of the present utility model as an inspiration, through the above description, relevant workers can completely make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A vehicle door controller, characterized in that, Including: A door controller, the door controller is connected to a BCM controller, and the door controller is connected to a plurality of door actuators, window actuators, vehicle rearview mirror actuators, door lock controllers, door handle actuators and door welcome light actuators; The door controller is also electrically connected to a power supply module; The BCM controller is connected to a communication protocol module, and the communication protocol module includes a CAN communication module and a LIN communication module.

2. The door controller according to claim 1, wherein An overcurrent and open circuit protection module is provided at the interface between the BCM controller and the door controller.

3. The door controller according to claim 1, wherein The BCM controller is provided with an external power supply interface.

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