CN108868426A - Tail-gate collision avoidance system - Google Patents
Tail-gate collision avoidance system Download PDFInfo
- Publication number
- CN108868426A CN108868426A CN201810727274.9A CN201810727274A CN108868426A CN 108868426 A CN108868426 A CN 108868426A CN 201810727274 A CN201810727274 A CN 201810727274A CN 108868426 A CN108868426 A CN 108868426A
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- China
- Prior art keywords
- tail
- gate
- distance
- driving motor
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/42—Detection using safety edges
- E05F15/43—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/42—Detection using safety edges
- E05F2015/483—Detection using safety edges for detection during opening
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
- E05Y2900/548—Trunk lids
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The present invention relates to tail-gate technical fields, are related to tail-gate collision avoidance system.Tail-gate collision avoidance system, including ranging inductor, controller and driving motor；Ranging inductor horizontally can emit distance measuring signal to rear of vehicle, calculate the horizontal distance between tail-gate and rear of vehicle barrier；Setting in this way prevents tail-gate to be easy the phenomenon that colliding with the barriers such as building near parking stall and cause vehicle damage generation in vehicle tail door opening process so that tail-gate open it is more intelligent, reliably.And the Hall sensor for monitoring driving motor speed and stroke is provided on driving motor, in the missing inspection of ranging inductor or false retrieval, Hall sensor can monitor the variation of driving electrodes in time, when tail-gate collides, Hall sensor can send the data to controller at the first time, then driving motor is controlled by controller to stop working, tail-gate is avoided to send severe crash.
Description
Technical field
The present invention relates to tail-gate technical fields, in particular to tail-gate collision avoidance system.
Background technique
In the prior art, the tail-gate (including back box lid) of vehicle is easy in opening process because vehicle back space is small
Or vehicle roof space is small and occur when directly pressing motor switch and opening tail-gate, the tail-gate and rear of vehicle barrier
Collision is collided with vehicle up direction barrier, causes vehicle damage.Especially some medium-sized SUV, large size SUV or transboundary vehicle etc.
Medium-and-large-sized vehicle, during automatically turning on tail-gate, it is easy to tail-gate and obstacle occur because parking lot or parking stall are narrow
The phenomenon that object collides.
Although the automatic tail-gate of vehicle in the prior art is in opening process, tail-gate meeting after encountering barrier
Stop, but due on tail-gate vehicle paint or other damageable zones wiping has occurred with barrier and touches, and damage, influence
The beautiful or some function of vehicle is realized.
Therefore it provides a kind of tail-gate collision avoidance system for avoiding tail-gate from opening collision becomes those skilled in the art to be solved
Important technological problems certainly.
Summary of the invention
The purpose of the present invention is to provide a kind of tail-gate collision avoidance systems, are touched with alleviating tail-gate unlatching transmission in the prior art
The technical issues of hitting.
The embodiment of the invention provides a kind of tail-gate collision avoidance system, including ranging inductor, controller and for driving
The driving motor of tail-gate movement；
The ranging inductor is arranged on tail-gate, and horizontally can emit distance measuring signal to rear of vehicle, calculates tail
Horizontal distance between door and rear of vehicle barrier；
The controller starts the ranging inductor work, in the ranging sense after receiving unlatching tail-gate instruction
It answers the horizontal distance between device and rear of vehicle barrier to be less than or equal to tail-gate and reaches maximum unlatching length in the horizontal direction
When horizontal distance when, driving motor control tail-gate is not turned on；
Horizontal distance between the ranging inductor and rear of vehicle barrier is greater than tail-gate and reaches in the horizontal direction
To it is maximum open length when horizontal distance when, the controller control tail-gate automatically turns on；
The Hall sensor for monitoring the driving motor revolving speed and stroke is provided on the driving motor.
The embodiment of the invention provides the first possible embodiments, wherein above-mentioned Hall sensor and the control
Device connection；
When the Hall sensor monitors driving motor revolving speed mutation, the controller can control the driving
Motor stops working.
The embodiment of the invention provides second of possible embodiments, wherein monitors institute in the Hall sensor
When stating the mutation of driving motor stroke, the controller can control the driving motor and stop working.
The embodiment of the invention provides the third possible embodiments, wherein is in the finger in opening process in tail-gate
When determining course location, the ranging inductor vertically to vehicle up direction emit distance measuring signal, measuring and calculating with vehicle up direction barrier it
Between vertical range, obtain the first measuring and calculating distance；
Specify herein the ranging inductor of the ranging inductor and tail-gate when course location when fully opening it
Between distance be first distance；
When the first measuring and calculating distance is less than or equal to the first distance, the controller control tail-gate does not continue out
It opens；
When the first measuring and calculating distance is greater than the first distance, the controller control tail-gate is continued starting.
The embodiment of the invention provides the 4th kind of possible embodiments, wherein opens for tail-gate above-mentioned assignment procedure position
Position after opening and being rotated by 90 °.
The embodiment of the invention provides the 5th kind of possible embodiments, wherein above-mentioned ranging inductor is mounted on tail-gate
Middle position.
The embodiment of the invention provides the 6th kind of possible embodiments, wherein above-mentioned ranging inductor is mounted on tail-gate
The installed position of wiper after upper.
The embodiment of the invention provides the 7th kind of possible embodiments, wherein above-mentioned ranging inductor is infrared distance measurement
One of inductor, radar range finding inductor, ultrasonic distance measurement inductor, laser ranging inductor.
The embodiment of the invention provides the 8th kind of possible embodiments, wherein above-mentioned tail-gate collision avoidance system further includes
Reminding unit；
The reminding unit is connect with the controller, and prompting is issued the user with when that can not automatically turn on tail-gate.
The embodiment of the invention provides the 9th kind of possible embodiments, wherein above-mentioned reminding unit includes sound prompting
Device and/or light prompting device.
Beneficial effect：
The embodiment of the invention provides a kind of tail-gate collision avoidance system, including ranging inductor, controller and for driving
The driving motor of tail-gate movement；Ranging inductor is arranged on tail-gate, and horizontally can emit distance measuring signal to rear of vehicle,
Calculate the horizontal distance between tail-gate and rear of vehicle barrier；Controller starts ranging after receiving unlatching tail-gate instruction
Inductor work, the horizontal distance between ranging inductor and rear of vehicle barrier are less than or equal to tail-gate in the horizontal direction
On when reaching maximum horizontal distance when opening length, driving motor control tail-gate is not turned on；After ranging inductor and vehicle
When horizontal distance between square barrier is greater than tail-gate and reaches maximum horizontal distance when opening length in the horizontal direction, control
Device controls tail-gate and automatically turns on；Setting in this way, in vehicle tail door opening process, prevent tail-gate be easy with parking stall near
The phenomenon that colliding and the causing vehicle damage generation of the barriers such as building so that tail-gate open it is more intelligent, reliably.And
And the Hall sensor for monitoring driving motor speed and stroke is provided on driving motor, in the missing inspection of ranging inductor or
When false retrieval, Hall sensor can monitor the variation of driving electrodes in time, and when tail-gate collides, Hall sensor can the
One time sent the data to controller, then controls driving motor by controller and stops working, and avoided tail-gate from sending serious
Collision.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of tail-gate collision avoidance system provided in an embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
With reference to shown in Fig. 1：
The embodiment of the invention provides a kind of tail-gate collision avoidance system, including ranging inductor, controller and for driving
The driving motor of tail-gate movement；Ranging inductor is arranged on tail-gate, and horizontally can emit distance measuring signal to rear of vehicle,
Calculate the horizontal distance between tail-gate and rear of vehicle barrier；Controller starts ranging after receiving unlatching tail-gate instruction
Inductor work, the horizontal distance between ranging inductor and rear of vehicle barrier are less than or equal to tail-gate in the horizontal direction
On when reaching maximum horizontal distance when opening length, driving motor control tail-gate is not turned on；After ranging inductor and vehicle
When horizontal distance between square barrier is greater than tail-gate and reaches maximum horizontal distance when opening length in the horizontal direction, control
Device controls tail-gate and automatically turns on；The Hall sensor for monitoring driving motor speed and stroke is provided on driving motor.
The embodiment of the invention provides a kind of tail-gate collision avoidance system, including ranging inductor, controller and for driving
The driving motor of tail-gate movement；Ranging inductor is arranged on tail-gate, and horizontally can emit distance measuring signal to rear of vehicle,
Calculate the horizontal distance between tail-gate and rear of vehicle barrier；Controller starts ranging after receiving unlatching tail-gate instruction
Inductor work, the horizontal distance between ranging inductor and rear of vehicle barrier are less than or equal to tail-gate in the horizontal direction
On when reaching maximum horizontal distance when opening length, driving motor control tail-gate is not turned on；After ranging inductor and vehicle
When horizontal distance between square barrier is greater than tail-gate and reaches maximum horizontal distance when opening length in the horizontal direction, control
Device controls tail-gate and automatically turns on；Setting in this way, in vehicle tail door opening process, prevent tail-gate be easy with parking stall near
The phenomenon that colliding and the causing vehicle damage generation of the barriers such as building so that tail-gate open it is more intelligent, reliably.And
And the Hall sensor for monitoring driving motor speed and stroke is provided on driving motor, in the missing inspection of ranging inductor or
When false retrieval, Hall sensor can monitor the variation of driving electrodes in time, and when tail-gate collides, Hall sensor can the
One time sent the data to controller, then controls driving motor by controller and stops working, and avoided tail-gate from sending serious
Collision.
When tail-gate is in close state, after controller receives tail-gate open command, starting ranging inductor work.One
As in the case of, the tail-gate on vehicle operated by vehicle user automatically turn on button and send tail-gate open command to controller.It surveys
Emit distance measuring signal, measuring and calculating ranging inductor and rear of vehicle barrier (such as wall, column away from inductor horizontal direction rear of vehicle
Son etc.) between horizontal distance.When the horizontal distance between the obtained ranging inductor of measuring and calculating and rear of vehicle barrier is less than
Or equal to ranging inductor and tail-gate reach in the horizontal direction it is maximum open length when tail-gate most outer between it is horizontal away from
From when, controller control tail-gate be not turned on.Controller control reminding unit issues the user with prompting and opens tail-gate, notifies user's vehicle
Rear can not automatically turn on tail-gate there are barrier.Conversely, controller is automatically turned on by actuating mechanism controls tail-gate.When
So, the precondition that general tail-gate automatically turns on is that vehicle remains static, this is the prior art, and details are not described herein again.It surveys
Can be set away from inductor it is multiple, with expand in ranging range.
When tail-gate is in a certain course location in opening process, controller controls the work of ranging inductor.Ranging sense
Device is answered to emit distance measuring signal, measuring and calculating ranging inductor and vehicle up direction barrier (such as roof, column to vehicle up direction vertically upward
Son etc.) between vertical range.When the vertical range between the obtained ranging inductor of measuring and calculating and vehicle up direction barrier is less than
Or when vertical range between the most upper edge of tail-gate when opening equal to ranging inductor and tail-gate to maximum opening angle, controller
Control tail-gate does not continue starting.Controller controls reminding unit and sends prompting to user simultaneously, and user's vehicle up direction is notified to exist
Barrier and can not continue automatically turn on tail-gate.Otherwise, controller control tail-gate is continued starting to maximum angle.
In the optinal plan of embodiment, Hall sensor is connect with controller；Driving motor is monitored in Hall sensor
When revolving speed is mutated, controller can control driving motor and stop working.
In the optinal plan of the present embodiment, when Hall sensor monitors the mutation of driving motor stroke, controller can be controlled
Driving motor processed stops working.
The stroke and revolving speed of Hall sensor meeting real-time monitoring driving motor, when tail-gate collides, driving motor
Revolving speed and stroke can mutate, this data is transferred to controller by Hall sensor at this time, control driving motor by controller
It stops working and turns round.
During routine use, because ranging inductor is exposed to outer, the broken of natural environment and man-made environment will receive
Ring, when ranging inductor in use, the case where meeting small probability appearance misses survey or test leakage, electric to driving by Hall sensor at this time
The monitoring of machine avoids tail-gate that great collision occurs, and reduces user's loss.
In the optinal plan of the present embodiment, when tail-gate is in the assignment procedure position in opening process, ranging inductor
Vertically to vehicle up direction emit distance measuring signal, calculate vehicle up direction barrier between vertical range, obtain the first measuring and calculating away from
From；
The distance between ranging inductor when ranging inductor and tail-gate when course location being specified to fully open herein
For first distance；
When the first measuring and calculating distance is less than or equal to first distance, controller control tail-gate is not continued starting；
When the first measuring and calculating distance is greater than first distance, controller control tail-gate is continued starting.
In the optinal plan of the present embodiment, assignment procedure position is the position after tail-gate is opened and is rotated by 90 °.
At this position, ranging inductor does not have to adjustment launch angle, and when being directly in close state using tail-gate
Launch angle (i.e. horizontal backward launched distance measuring signal), and make in the course location, ranging inductor can vertically to
Upper transmitting distance measuring signal simultaneously calculates the vertical range between ranging inductor and vehicle up direction barrier.
In the optinal plan of the present embodiment, ranging inductor is mounted on the middle position of tail-gate.
In the optinal plan of the present embodiment, the installed position of wiper after ranging inductor is mounted on tail-gate.
Ranging inductor is mounted on tail-gate.Ranging inductor is mounted on the middle position of tail-gate.In a specific implementation
In mode, ranging inductor is mounted on the installed position of the rear wiper on tail-gate.In this way, on the one hand without in vehicle body
Or mounting structure is reset in the other positions of tail-gate, it on the other hand can be using the route of rear wiper without other cloth
Line.Ranging inductor can also be installed at the other positions of tail-gate, such as vehicle tail mark or on other vehicle bodies, for example, after protect
At dangerous thick stick position.
In the optinal plan of the present embodiment, ranging inductor is infrared distance measurement inductor, radar range finding inductor, ultrasonic wave
One of ranging inductor, laser ranging inductor.
In the optinal plan of the present embodiment, tail-gate collision avoidance system further includes reminding unit；Reminding unit and controller connect
It connects, prompting is issued the user with when tail-gate can not be automatically turned on.
In the optinal plan of the present embodiment, reminding unit includes voice reminder and/or light prompting device.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of tail-gate collision avoidance system, which is characterized in that including：Ranging inductor, controller and for driving tail-gate to move
Driving motor；
The ranging inductor is arranged on tail-gate, and horizontally can emit distance measuring signal to rear of vehicle, measuring and calculating tail-gate with
Horizontal distance between the barrier of rear of vehicle；
The controller starts the ranging inductor work, in the ranging inductor after receiving unlatching tail-gate instruction
Horizontal distance between the barrier of rear of vehicle is less than or equal to tail-gate and reaches maximum when opening length in the horizontal direction
When horizontal distance, the driving motor control tail-gate is not turned on；
Horizontal distance between the ranging inductor and rear of vehicle barrier is greater than tail-gate and reaches in the horizontal direction most
When big horizontal distance when opening length, the controller control tail-gate is automatically turned on；
The Hall sensor for monitoring the driving motor revolving speed and stroke is provided on the driving motor.
2. tail-gate collision avoidance system according to claim 1, which is characterized in that the Hall sensor and the controller
Connection；
When the Hall sensor monitors driving motor revolving speed mutation, the controller can control the driving motor
It stops working.
3. tail-gate collision avoidance system according to claim 2, which is characterized in that monitored in the Hall sensor described
When driving motor stroke is mutated, the controller can control the driving motor and stop working.
4. tail-gate collision avoidance system according to claim 1, which is characterized in that be in specified in opening process in tail-gate
When course location, the ranging inductor vertically emits distance measuring signal to vehicle up direction, between measuring and calculating and vehicle up direction barrier
Vertical range, obtain the first measuring and calculating distance；
Between ranging inductor when specifying ranging inductor when course location and tail-gate to fully open herein
Distance is first distance；
When the first measuring and calculating distance is less than or equal to the first distance, the controller control tail-gate is not continued starting；
When the first measuring and calculating distance is greater than the first distance, the controller control tail-gate is continued starting.
5. tail-gate collision avoidance system according to claim 4, which is characterized in that the assignment procedure position is tail-gate unlatching
And the position after being rotated by 90 °.
6. tail-gate collision avoidance system according to claim 1, which is characterized in that the ranging inductor is mounted on tail-gate
Middle position.
7. tail-gate collision avoidance system according to claim 6, which is characterized in that the ranging inductor is mounted on tail-gate
The installed position of wiper afterwards.
8. tail-gate collision avoidance system according to claim 1, which is characterized in that the ranging inductor is infrared distance measurement sense
Answer one of device, radar range finding inductor, ultrasonic distance measurement inductor, laser ranging inductor.
9. tail-gate collision avoidance system according to claim 1, which is characterized in that further include reminding unit；
The reminding unit is connect with the controller, and prompting is issued the user with when that can not automatically turn on tail-gate.
10. tail-gate collision avoidance system according to claim 9, which is characterized in that the reminding unit includes sound prompting
Device and/or light prompting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810727274.9A CN108868426A (en) | 2018-07-04 | 2018-07-04 | Tail-gate collision avoidance system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810727274.9A CN108868426A (en) | 2018-07-04 | 2018-07-04 | Tail-gate collision avoidance system |
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Cited By (2)
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| CN111550145A (en) * | 2019-02-08 | 2020-08-18 | 通用汽车环球科技运作有限责任公司 | System and method for indicating a space available for opening a door of an automobile |
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| CN108252607A (en) * | 2018-01-30 | 2018-07-06 | 深圳市奥天星汽车配件有限公司 | The electronic opening/closing system of automobile trunk |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109581901A (en) * | 2019-01-21 | 2019-04-05 | 南京达斯琪数字科技有限公司 | A kind of display system |
| CN111550145A (en) * | 2019-02-08 | 2020-08-18 | 通用汽车环球科技运作有限责任公司 | System and method for indicating a space available for opening a door of an automobile |
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Application publication date: 20181123 |