TW201940366A - Car trunk door lift control system - Google Patents

Abstract

A car trunk door lift control system is provided, including a driver, controlling a lift of a car trunk door; a sensing device, arranged on the car trunk door to detect an obstacle around a lifting path of the car trunk door; and a processing unit, deciding whether the obstacle will impede the lift of the car trunk door or not; if yes, notifying the driver to adjust the lift of car trunk door.

Description

Rear compartment lid lift control system

The present invention relates to a control system, and in particular to a rear compartment lid raising control system, which can control the rear compartment lid raising and determine whether there are obstacles that would hinder the rear compartment lid raising. The rear lid is raised to adjust.

In recent years, car manufacturers have actively developed smart vehicle technology, but they have been focusing on advanced driving assistance systems, but have paid little attention to the safety of the car itself. Although the user opens the rear compartment, although there is an automatic device for automatically raising the rear compartment cover, few developments have been made to protect the rear compartment cover from collision with obstacles. Existing automation devices for automatically lifting the rear compartment cover include external and built-in automation devices. Among them, the external automatic device is attached to the original rear compartment cover, and a set of automatic rear compartment cover lifters must be set at the time of installation. When the rear compartment cover is opened, it touches an obstacle. Will stop rising.

The built-in automation device has been designed with the function of automatically lifting the rear compartment lid when the vehicle is manufactured. After opening the rear compartment, the user can also adjust the angle at which the rear compartment is automatically raised, and a similar pressure sensing device is added to the bracket connection to achieve the protection function. In the process of lifting, once the obstacle is reached and the preset resistance value is reached, the rear compartment cover will automatically run or stop in the opposite direction. FIG. 1 is a flowchart of controlling the raising of the rear compartment cover in the prior art. User in After the resistance value is set in advance (step S100), the rear compartment cover is opened (step S102), and the rear compartment cover is raised accordingly (step S104). In the process of raising the rear compartment cover, if the resistance is greater than a preset resistance value (step S106), the rear compartment cover will stop rising (step S108).

Regardless of whether it is an external or built-in automatic device for automatically lifting the rear compartment cover, for safety considerations, it is mostly designed to stop the movement or touch the obstacle during the process of automatically opening the rear compartment cover. Moving in the opposite direction, but it still makes the rear compartment cover contact with obstacles, causing damage to the paint or the panel of the rear compartment cover.

In view of this, the present invention is to improve the user's ability to avoid damage to the rear compartment cover due to unobserved obstacles when the user opens the rear compartment.

According to an embodiment of the present invention, the trunk lid control system includes a driving device for controlling the lifting of the rear trunk lid, and a sensing device disposed on the rear trunk lid during the opening process of the rear trunk lid. To detect obstacles around the lifting path of the rear compartment cover; and a processing unit to determine whether there are obstacles that would prevent the lifting of the rear compartment cover based on the results detected by the sensing device; , The driving device is notified to adjust the raising of the rear compartment cover.

As described above, the trunk lid control system, wherein the processing unit notifies the driving device to adjust the lifting speed of the rear lid so that it decreases as the distance between the rear lid and the obstacle approaches; and When the distance between the rear compartment cover and the obstacle reaches a safe distance, make the rear vehicle The lid stops rising.

As described above, the trunk lid control system, wherein the sensing device is a single camera; the processing unit indicates a dangerous area on the image behind the vehicle detected by the single camera, and when the obstacle falls into the dangerous area At that time, the driving device is notified to stop the lifting of the rear compartment cover.

As described above, the trunk lid control system, wherein the sensing device is at least two cameras, and the shooting ranges of the two cameras overlap each other; the processing unit obtains the obstacle through the images captured by the two cameras. When the processing unit determines that the distance between the rear compartment cover and the obstacle is less than or equal to a safe distance according to the depth of field information, the driving unit is notified to stop the rear compartment cover from rising.

As described above, the trunk lid control system, wherein the sensing device is a ranging sensor, the processing unit uses the ranging sensor to obtain the distance between the obstacle and the rear compartment cover; when the rear vehicle When the distance between the box cover and the obstacle is less than or equal to a safety distance, the drive device is notified to stop the lifting of the rear compartment cover.

200‧‧‧ Rear compartment cover control system

202‧‧‧processing unit

204‧‧‧Drive

206‧‧‧Sensing device

400‧‧‧Vertical distance

402‧‧‧horizontal distance

500‧‧‧camera screen

502‧‧‧ obstacle

504‧‧‧marking line

506‧‧‧ danger zone

FIG. 1 is a flowchart of controlling the rear compartment lid raising in the prior art; FIG. 2 is a block diagram of the compartment lid control system after the embodiment of the disclosure; and FIG. 3 is controlling the rear compartment lid raising in the second embodiment of the disclosure Fig. 4 is a schematic diagram of the lift path and surrounding obstacles of the compartment cover after Fig. 2 of the disclosed embodiment; 5A and 5B are schematic diagrams of a compartment cover control system showing a dangerous area through a single camera after the second embodiment of the disclosure; FIG. 6 is a compartment cover control system after at least two cameras after the second embodiment of the disclosure Schematic of distance detection.

FIG. 2 is a block diagram of a compartment cover control system after the embodiment of the disclosure. As shown in FIG. 2, the trunk lid control system 200 includes a processing unit 202, a driving device 204, and a sensing device 206. In this embodiment, the processing unit 202 determines whether there is an obstacle that will prevent the rear compartment lid from rising based on the result detected by the sensing device 206; if so, it instructs the driving device 204 to adjust the rear compartment lid rise. . The processing unit 202 further instructs the driving device 204 to adjust the lifting speed of the rear compartment cover so that it decreases as the distance between the rear compartment cover and the obstacle approaches; and when the distance between the rear compartment cover and the obstacle decreases. When the safety distance is reached, the rear compartment lid is stopped from rising. The processing unit 202 may be a processor, such as a front / rear loading machine system, a driving monitoring computer, or an external driving device that can be embedded in a vehicle, and can be touched or physically touched through a display screen, for example. The method of pressing keys allows the user to set the safety distance to the processor. The processing unit 202 can also know the information detected by the sensing device 206 in a wired or wireless manner, and notify the driving device 204 according to the result, so as to control the raising of the rear compartment cover.

In this embodiment, the driving device 204 receives a driving signal from the processing unit 202 to control the raising of the rear compartment cover. For example, the driving device 204 may include a uniform energy device, and a lifting device. The enabling device receives The driving signal of the processing unit 202 controls the lifting device according to the driving signal to regulate the lifting, stopping, or reducing the lifting speed of the rear compartment cover. Therefore, the driving device 204 can receive the driving signal from the processing unit 202 to adjust the lifting speed of the rear compartment cover, so that the lifting speed decreases in accordance with the approach of the distance between the rear compartment cover and the obstacle.

FIG. 3 is a flowchart of controlling the rear compartment lid raising in FIG. 2 of the disclosed embodiment. The user can preset a safety distance (step S300) to the processing unit 202 through the display screen (not shown) of the vehicle system or the driving monitoring computer, and after opening the rear compartment cover (step S302), the rear compartment cover follows. Raise (step S304), and then the processing unit 202 judges in real time whether the distance between the rear compartment cover and the obstacle is less than or equal to the above-mentioned safety distance based on the results detected by the sensing device 206 during the raising process of the rear compartment cover (step S304) S306). If the distance between the rear compartment cover and the obstacle is less than or equal to the safety distance, the processing unit 202 notifies the driving device 204 to stop the lifting of the rear compartment cover (step S308). If the distance between the rear compartment cover and the obstacle is still greater than the safety distance, the rear compartment cover will continue to rise (step S304), but the processing unit 202 continues to capture the results detected by the sensing device 206 to determine Whether the distance between the rear compartment cover and the obstacle is less than or equal to the safety distance (step S306), and in accordance with the approach of the rear compartment cover to the obstacle, notify the driving device 204 to reduce the lifting speed of the rear compartment cover until The distance between the rear compartment cover and the obstacle is less than or equal to the safety distance, and the lifting of the rear compartment cover is stopped (step S308).

FIG. 4 is a schematic diagram of a vehicle body cover lifting path and surrounding obstacles after FIG. 2 of the disclosed embodiment. As shown in Figure 4, if there is an obstacle around the lifting path or behind the car during the lifting of the compartment lid, The element 202 controls the driving device 204 according to the detection result of the sensing device 206; for example, when the processing unit 202 learns the horizontal distance 400 or vertical distance 402 of the rear compartment cover and the obstacle according to the detection result of the sensing device 206 When the safety distance is less than or equal to the safety distance, the driving device 204 is notified to stop the lifting of the rear compartment cover.

In some embodiments of the present disclosure, the sensing device 206 may be a single camera, at least two cameras, or a ranging sensor. When the sensing device 206 is a single camera, because the depth of field information of the obstacle cannot be obtained, the processing unit 202 can only compare the front and rear images detected by the single camera to mark a dangerous area. 5A and 5B are schematic diagrams of a compartment cover control system marking a dangerous area through a single camera after FIG. 2 of the disclosed embodiment. The camera picture 500 is an image taken by the single camera during the process of reversing the car, and the processing unit 202 marks a mark 504 on the camera picture 500, and the area within the mark 504 is a dangerous area 506. As shown in FIG. 5A, during the process of reversing the vehicle, the obstacle 502 did not exceed the marking line 504 and fell into the dangerous area 506. Therefore, the processing unit 202 continues to notify the driving device 204 to raise the rear compartment cover. As shown in FIG. 5B, if the vehicle continues to reverse so that the obstacle 502 exceeds the marking line 504 and falls into the danger area 506, the processing unit 202 notifies the driving device 204 to stop the lifting of the rear compartment cover. In the embodiment of the present disclosure, the processing unit 202 may move the front and rear positions of the marking line 504 according to the angle at which the rear compartment cover is raised to define a new danger zone 506 to prevent the rear compartment cover from colliding with the obstacle 502.

FIG. 6 is a schematic diagram of the compartment cover control system performing distance detection through at least two cameras after FIG. 2 of the disclosed embodiment. In some embodiments of the present disclosure, as shown in FIG. 6, the sensing device 206 is two cameras and is disposed at Cover the rear compartment and overlap the shooting ranges of the two cameras. The processing unit 202 obtains the depth of field information of the obstacle through the images captured by the two cameras and uses the operation of the stereo vision principle, and when the processing unit 202 determines that the distance between the rear compartment cover and the obstacle is less than or When it is equal to a safety distance, the driving device 204 is notified to stop the lifting of the rear compartment cover. The operation of the above-mentioned stereoscopic vision principle can be achieved by executing an algorithm by the processing unit 202. For example, the stereo.py algorithm in OpenCV (Open Source Computer Vision Library), a cross-platform computer vision library, can be used by the processing unit 202 to calculate the images captured by the two cameras to obtain the depth of field of the obstacles. Information.

In some embodiments of the present disclosure, the sensing device 206 may be a ranging sensor. The distance measuring sensor is, for example, an ultrasonic sensor, which transmits an ultrasonic wave to an obstacle, and the ultrasonic sensor receives an ultrasonic wave reflected by the obstacle, whereby the processing unit 202 can obtain the obstacle and the The distance of the rear compartment cover; for example, as shown in FIG. 4, the processing unit 202 can learn the horizontal distance 400 or vertical distance 402 of the obstacle from the rear compartment cover. When the distance between the rear compartment cover and the obstacle is less than or equal to a safety distance, the processing unit 202 notifies the driving device 204 to stop the rear compartment cover from rising. The above-mentioned ranging sensor may also be an electromagnetic wave sensor (ranging device) that emits a specific frequency band to an obstacle. The above two are merely examples and are not intended to limit the present invention.

Although the embodiment of the present invention is described as above, we should understand that the above is only an example, not a limitation. Many changes of the above-described exemplary embodiments according to this embodiment can be performed without violating the spirit and scope of the invention. Therefore, the breadth and scope of the present invention should not be described by the embodiments described above. Restricted. More specifically, the scope of the present invention should be defined by the following patent application scopes and their equivalents.

Claims (5)

A rear compartment cover control system includes: a driving device for controlling the raising of the rear compartment cover; and a sensing device provided on the rear compartment cover for detecting the presence of the rear compartment cover during the opening process. Obstacles around the lifting path of the rear compartment lid; and a processing unit, based on the results detected by the sensing device, to determine whether there are obstacles that would prevent the lifting of the rear compartment lid; if so, notify the above The driving device adjusts the lifting of the rear compartment cover. The rear compartment cover control system according to item 1 of the scope of the patent application, wherein the processing unit notifies the drive device to adjust the lifting speed of the rear compartment cover so that it follows the distance between the rear compartment cover and the obstacle. Decreasing; and when the distance between the rear compartment cover and the obstacle reaches a safe distance, stopping the rear compartment cover from rising. The rear compartment cover control system described in item 1 of the scope of the patent application, wherein the sensing device is a single camera; the processing unit indicates a dangerous area on the image behind the vehicle detected by the single camera, and when the obstacle When falling into the above-mentioned dangerous area, the driving device is notified to stop the lifting of the rear compartment cover. The rear compartment cover control system described in item 1 of the scope of the patent application, wherein the sensing device is at least two cameras, and the shooting ranges of the two cameras overlap with each other; the processing unit captures through the two cameras Obtain the depth of field information of the obstacle from the image, and when the processing unit determines that the distance between the rear compartment cover and the obstacle is less than or equal to a safe distance based on the depth of field information, notify the driving device to stop the rear compartment cover. rising. According to the rear compartment cover control system described in item 1 of the scope of patent application, wherein the sensing device is a ranging sensor, the processing unit uses the ranging sensor to obtain a distance between the obstacle and the rear compartment cover. ; When the distance between the rear trunk lid and the obstacle is less than or equal to a safety distance, the driving device is notified to stop the rear trunk lid from rising.