Automobile side mirror direction indicator control system

Abstract

To provide an automobile side mirror direction indicator control system having a rational structure, exhibiting an excellent warning effect of a vehicle lamp, and having high safety and reliability, and ease of use.SOLUTION: This automobile side mirror direction indicator control system comprises: a power management module 100; a MCU control module 200; a switching control circuit 300; at least two drive circuits 400, 410, 420; at least two LED light emission modules 500, 510, 520; a signal detection circuit 600; and a signal interface circuit 700. The power management module is used for supplying power to the MCU control module. The MCU control module controls each of at least two drive circuits by the switching control circuit. The at least two drive circuits each control at least two LED light emission modules. The MCU control module controls the signal interface circuit by the signal detection circuit.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to the field of automotive control technology, and particularly to a side mirror direction indicator control system for automobiles.

Background Art

[0002] With the development of automobiles, warnings, especially side warnings of automobiles, have always become important functions during driving. Although existing vehicles have headlamps and taillamps playing the role of safety warning identification during the processes of driving, steering, and reversing, in a dim environment, the central part of the vehicle body corresponds to a difficult-to-see area for pedestrians. However, due to being restricted by a complex driving environment, only front and rear lighting is not sufficient.

[0003] Currently, side mirror direction indicators have not been fully popularized yet. Vehicles without a direction indicator function on the side mirror need such a direction indicator with high warning and recognition. For vehicles equipped with a direction indicator on the side mirror, the lamp effect of the original direction indicator installed on the vehicle is stereotyped, the brightness of the lighting is low, and the warning effect is greatly reduced. In order to better ensure driving safety, a better warning recognition light is required for the side mirror direction indicator.

[0004] The direction indicator installed on the original vehicle has only one lighting display effect, which is a flashing mode or a continuous mode. The mode is single and fixed and cannot be switched. When the vehicle owner needs to add, change the lighting effect, or restore after modification, it is necessary to disassemble the side mirror again. This act is not only troublesome but also may damage the side mirror. If the vehicle owner is not familiar with the operation, it is also necessary to go to an auto repair shop to replace it, which takes more time and cost.

[0005] Chinese Patent Application Number: 201310372936.2, Application Date: August 23, 2013, Publication Date: November 27, 2013, Patent Title: Invention of a Constant Current Driving Control System for Side Mirror Direction Indicators. The invention provides a constant current driving control system for side mirror direction indicators that includes an input module, a buck module, a current stabilization module, and a plurality of LED lights. The voltage input by the input module is output to the plurality of LED lights through the buck module, and the plurality of LED lights are lit. The current stabilization module reduces the change in the current flowing through the plurality of LED lights when the input voltage fluctuates. The plurality of LED lights are configured to be combined in series and parallel. This invention realizes the constant current driving of the side mirror direction indicators for automobiles with a simple circuit so that the brightness of the side mirror for automobiles does not change due to the change in the input voltage. This invention makes full use of the operating characteristics of diodes and triodes that are commonly seen currently, combines the creativity of both, and enables the achievement of the constant current control effect that can be achieved by conventional integrated chips with only two elements.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] Although the above patent documents disclose a constant current driving control system for side mirror direction indicators, the structure of this constant current driving control system is not reasonable, there are certain defects in the warning effect of vehicle lamps, the effect of the LED is single, and it cannot meet the needs of consumers.

Means for Solving the Problems

[0008] In view of this, the present invention provides an automotive side mirror direction indicator control system with a reasonable structure, excellent warning effect of vehicle lamps, switchable vehicle lamp effects, strong safety and reliability, and ease of use.

[0009] In order to achieve the object of the present invention, the following technical solutions can be adopted. The automotive side mirror direction indicator control system includes a power management module, an MCU control module, a switching control circuit, at least two drive circuits, at least two LED light-emitting modules, a signal detection circuit, and a signal interface circuit. The power management module is used to supply power to the MCU control module. The MCU control module controls each of the at least two drive circuits through the switching control circuit. The at least two drive circuits control each of the at least two LED light-emitting modules. The MCU control module controls the signal interface circuit through the signal detection circuit.

[0010] The MCU control module is a chip with the model number TL16C554.

[0011] The at least two drive circuits include three drive circuits, and the at least two LED light-emitting modules include three LED light-emitting modules.

[0012] The MCU control module includes a memory.

[0013] The power management module includes a charging circuit.

[0014] The direction indicator control system further includes a vehicle signal terminal, and the signal detection circuit detects signal information transmitted from the vehicle signal terminal through the signal interface circuit.

[0015] The vehicle signal terminal includes vehicle lamp signal information or bus signal information.

[0016] The beneficial effects of the present invention are as follows. 1) The present invention solves the safety problems caused by the absence or low warning effect of warning lights on the vehicle side mirror direction indicator. The present invention includes a plurality of drive circuits and a plurality of LED light-emitting modules. Each drive circuit controls one LED light-emitting module. The present invention controls a plurality of drive circuits by a switching control circuit to improve the warning effect of the side mirror direction indicator, and the control is flexible and simple. 2) The present invention has a reasonable structure, diverse functions, and is safe and reliable to use. 3) The present invention has a high degree of intelligence, low cost, and is suitable for general popularization.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

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Figure 5

Figure 6

Modes for Carrying Out the Invention

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in connection with the accompanying drawings. It is obvious that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained on the premise that those skilled in the art do not perform creative labor fall within the scope of protection of the present invention.

[0019] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement status between various components in a specific posture (shown in the drawings). When the specific posture changes, the corresponding directional indications also change accordingly.

[0020] In the present invention, unless otherwise specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" may be a fixed connection, a removable connection, or an integrated one. It may be a mechanical connection or an electrical connection. It may be directly connected or indirectly connected through an intermediate medium. Unless specifically limited, it may also be the internal communication between two elements or the interaction relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the situation.

[0021] In addition, the descriptions such as "first" and "second" in the invention are only used for the purpose of explanation, and are not construed as indicating or implying their relative importance or indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can include at least one such feature explicitly or implicitly. Also, the technical solutions between the embodiments can be combined with each other, but it must be based on what those skilled in the art can achieve. If contradictions occur or it cannot be realized in the combination of technical solutions, such a combination of technical solutions should be considered non-existent and not included in the protection scope required by the present invention.

[0022] Hereinafter, the invention will be described in more detail in conjunction with the accompanying drawings and embodiments of the present invention.

[0023] Embodiment 1 Referring to FIGS. 1 to 5, the automotive side mirror direction indicator control system includes a power management module 100, an MCU control module 200, a switching control circuit 300, at least two drive circuits preferably including a first drive circuit 400 and a second drive circuit 410, at least two LED emission modules preferably including a first LED emission module 500 and a second LED emission module 510, a signal detection circuit 600, and a signal interface circuit 700. The power management module 100 is used to supply power to the MCU control module 200. The MCU control module 200 is used to control processing information. The switching control circuit 300 is used to control and switch the circuit. The signal detection circuit 600 is used to detect signal information. The signal interface circuit 700 is used for external signal devices. The MCU control module 200 controls the first drive circuit 400 and the second drive circuit 410 respectively through the switching control circuit 300. The first drive circuit 400 and the second drive circuit 410 control the first LED emission module 500 and the second LED emission module 510 respectively. The MCU control module 200 controls the signal interface circuit 700 through the signal detection circuit 600.

[0024] Preferably, the MCU control module 200 is a chip with the model number TL16C554.

[0025] In this embodiment, the MCU control module 200 can control the first drive circuit 400 through the switching control circuit 300. Of course, the switching control circuit 300 can also control the second drive circuit 410.

[0026] In this embodiment, the present invention can include a plurality of drive circuits and a plurality of LED light-emitting modules. More preferably, the at least two drive circuits include three drive circuits, and the LED light-emitting modules include three LED light-emitting modules.

[0027] The three drive circuits include a first drive circuit 400, a second drive circuit 410, and a third drive circuit 420. The three LED light-emitting modules include a first LED light-emitting module 500, a second LED light-emitting module 510, and a third LED light-emitting module 520. In this embodiment, the MCU control module 200 may control the first drive circuit 400, the second drive circuit 410, or the third drive circuit 420 respectively through the switching control circuit 300. Of course, the first drive circuit 400 and the second drive circuit 410 may be controlled simultaneously, and the third drive circuit 420 may be controlled by the switching control circuit 300. The first drive circuit 400, the second drive circuit 410, and the third drive circuit 420 control the first LED light-emitting module 500, the second LED light-emitting module 510, and the third light-emitting module 520 respectively.

[0028] In this embodiment, preferably, the MCU control module 200 includes a memory 210 for storing and recording the information processed by the MCU control module 200.

[0029] In this embodiment, preferably, the power management module 100 includes a charging circuit 110.

[0030] In this embodiment, more preferably, the power management module 100 can further include a discharge circuit that can control the color change of the vehicle lamp to improve the warning effect of the vehicle lamp.

[0031] The charging circuit 110 charges the power management module 100 to ensure that the present invention operates without interruption and can greatly improve the working efficiency.

[0032] In this embodiment, preferably, the direction indicator control system of the present invention further includes a vehicle signal terminal 800, and the signal detection circuit 600 detects signal information transmitted from the vehicle signal terminal 800 by means of a signal interface circuit 700. In this embodiment, more preferably, the vehicle signal terminal 800 includes vehicle lamp signal 810 information or bus signal 820 information.

[0033] In this embodiment, more preferably, the vehicle signal terminal 800 further includes a component / total length signal 830.

[0034] In this embodiment, the direction indicator provides an operation signal to the MCU control module 200 via the vehicle lamp signal 810 or the bus signal 820. After the vehicle lamp signal disappears, the power management module 100 supplies an electric quantity to the MCU control module 200 within a unit time to ensure that the MCU control module 200 does not turn off. The MCU control module 200 records the number of times of the bus signal 820 of the vehicle lamp via the memory 210 and triggers the switching of the lamp dynamic effect according to the number of times.

[0035] Referring to FIG. 6, in this figure, the reference numeral 910 represents an operation cycle, and the reference numeral 920 represents a switching cycle. In this embodiment, the vehicle signal terminal 800 can supply power to the power management module 100, and the power management module 100 can supply the electric quantity required for normal operation to the MCU control module 200 without vehicle signal input for T seconds. The MCU control module 200 determines whether there is a current vehicle signal input by means of the signal detection circuit 600. When there is a vehicle signal input, it controls the drive circuit to drive the LED lighting module to exert a lamp effect and accumulatively processes the number of times M of the vehicle signal input.

[0036] The present invention defines a period during which the time from the first vehicle signal to the disappearance of the last vehicle signal exceeds T seconds (the maximum maintenance time of electrical energy storage) as one operation cycle. When starting the second operation cycle, the control chip module reads the number M of vehicle signal inputs in the previous operation cycle. If the number M is equal to S, the operation cycle number P is cumulatively processed; otherwise, the operation cycle number P is set to 0. Then, the operation cycle number P is recorded in a power-down saveable memory (including but not limited to EEPROM, FLASH (registered trademark), etc.). When the number P of operation cycles is equal to Q, a lamp effect mode switching operation is executed. The entire cycle that satisfies the switching condition is called a switching cycle, and the switching cycle is composed of several operation cycles that satisfy the condition.

[0037] In this embodiment, when the number M of vehicle signal inputs is 2, the time T is 2 seconds, and the number of operation cycles is 5, the dynamic effect mode switching procedure can be realized by the following operations (including but not limited to the following).

[0038] Method 1 Step 1: Press the unlock button of the car's smart key once, and there are two signal inputs. Step 2: Press the first unlock button, then press the second unlock button again at an interval of less than 2 seconds, and then pause and wait for 3 seconds. Step 3: Repeat the operation in Step 2 six times, switch the dynamic effect mode from the sixth time, and the newly set lamp dynamic effect can be seen.

[0039] Method 2 Step 1: Press the hazard switch inside the vehicle, and control the number of signal inputs by the hazard switch to maintain the number of signal inputs per time at 2 times. Step 2: Press the hazard switch, wait for the hazard lamp to blink twice, then press the hazard switch again, and then pause and wait for 3 seconds. Step 3: Repeat the operation in Step 2 six times, switch the dynamic effect mode from the sixth time, and the newly set lamp dynamic effect can be seen.

[0040] The object of the present invention is to solve the safety problems caused by the absence of a warning lamp or low warning effect in the side mirror direction indicator for automobiles, and to improve the aesthetic appearance and scientific and technological sense of security of the whole vehicle. The present invention can be mounted on the outside of the side mirror for automobiles and can exhibit different dynamic effects when the vehicle is running, steering, or reversing, and this dynamic effect is set by the user himself.

[0041] The above is only a preferred embodiment of the present invention and does not limit the protection scope of the invention.

Claims

1. A power management module, an MCU control module, a switching control circuit, at least two drive circuits, at least two LED light-emitting modules, a signal detection circuit, and a signal interface circuit, wherein the power management module is used to supply power to the MCU control module, the MCU control module controls each of the at least two drive circuits by the switching control circuit, the at least two drive circuits control each of the at least two LED light-emitting modules, and the MCU control module controls the signal interface circuit by the signal detection circuit. An automotive side mirror direction indicator control system characterized by the above.

2. The automotive side mirror direction indicator control system according to claim 1, wherein the MCU control module is a chip with model number TL16C554.

3. The automotive side mirror direction indicator control system according to claim 2, wherein the at least two drive circuits include three drive circuits, and the at least two LED light-emitting modules include three LED light-emitting modules.

4. The automotive side mirror direction indicator control system according to claim 3, wherein the MCU control module includes a memory.

5. The automotive side mirror direction indicator control system according to claim 4, wherein the power management module includes a charging circuit.

6. Further including a vehicle signal terminal, and the signal detection circuit detects signal information transmitted from the vehicle signal terminal by the signal interface circuit. The automotive side mirror direction indicator control system according to any one of claims 1 to 5.

7. The automotive side mirror direction indicator control system according to claim 6, wherein the vehicle signal terminal includes vehicle lamp signal information or bus signal information.

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