CN111976596A - Method, sunroof system and vehicle for judging the passing height of a vehicle based on the sunroof of the vehicle - Google Patents

Abstract

The present application discloses a method for judging a passing height of a vehicle based on a sunroof of the vehicle, a sunroof system, and a vehicle. The sunroof is configured with an environmental sensor and an actuator, and the method includes: obtaining, by the environmental sensor, a restricted height in front of the vehicle defined by an obstacle and identifying objects protruding from the top of the vehicle; The limit altitude is compared to the threshold altitude, and at least one vehicle response is made in response to the comparison.

Description

Method, sunroof system and method for judging the passing height of a vehicle based on the sunroof of the vehicle vehicle

technical field

The present application belongs to the field of vehicle control, and in particular relates to a method for judging the passing height of a vehicle based on a sunroof of the vehicle, a sunroof system, and a vehicle.

Background technique

Highway sections such as bridges or tunnels have height restrictions on passing vehicles. Usually, warning signs are set up at the starting position of this special road section to remind the driver. However, if the driver does not notice, the warning sign will not serve as a reminder. In addition, in order to protect the road section, a detection device is also provided at the starting point of this special road section to check whether the height and even the speed of the passing vehicle meet the requirements. However, such inspections cannot play an early warning role at the scene. If an illegal vehicle is found, it cannot be notified to the vehicle at the first time, which brings safety hazards to the vehicle, the personnel on the vehicle and the facilities in the road section.

On the other hand, people are no longer satisfied with the enjoyment of riding and driving in a closed vehicle environment. When the vehicle is in motion, passengers can lean out of the vehicle from the inside through the roof of the vehicle. However, there are risks associated with the increased freedom of riding. Once driving on a road with height restrictions or encountering a building or facility with a height in front, passengers should return to the vehicle immediately.

SUMMARY OF THE INVENTION

One aspect of the problem to be solved by the present application is to provide a method for judging the passing height of a vehicle based on a sunroof of the vehicle, the sunroof is configured with an environmental sensor and a driver, and the method includes: acquiring, by using the environmental sensor, a driving distance in front of the vehicle. an obstacle-defined limit height and identifying objects protruding from the top of the vehicle; comparing the limit height to a threshold height based on the results of the environment sensor, and at least one vehicle response is made in response to the comparison.

Based on the sensor on the sunroof, the present application can actively and remotely detect the situation of the road section ahead, so that the vehicle can be warned that the vehicle is about to enter the height-restricted road section, or that there may be obstacles in front of the vehicle that may cause the vehicle to pass through, thereby ensuring the safety of people and vehicles. For example, the vehicle can perceive the opening of a tunnel or bridge ahead. At the same time, the vehicle also uses this sensor to sense the environment near the sunroof, such as whether someone is outside the car. Thereby, whether the vehicle is in danger is pre-judged based on the result of the sunroof sensor, and a warning notification is issued to the occupant in the vehicle in response to the judgment result.

In the method, the at least one vehicle response includes at least one of: generating a visual or audible cue signal inside the vehicle, modifying vehicle driving parameters, and actuating the sunroof by a driver.

In the method, displaying the visual cue signal using an instrument panel; modifying vehicle driving parameters includes reducing vehicle speed; and actuating the sunroof by actuating includes further opening the vehicle roof to increase the open area.

The occupants of the vehicle can be notified of the current condition of the vehicle by issuing an alert signal in the vehicle. The prompt signal can indicate that the vehicle is in a temporarily safe state or a non-safe state, and the signal prompting method can be visual or audible, so as to attract the attention of the occupants in the vehicle so that the occupants in the vehicle can take countermeasures. Prompts may also be given by actively interfering with vehicle driving, including modifying vehicle driving parameters, and/or activating a sunroof. The reduced speed can provide ample time for the person to get back into the vehicle. Opening the sunroof to a larger or even the largest area is beneficial for people to quickly return to the car.

In the method, the at least one vehicle reaction that has occurred is discontinued after the ambient sensor no longer recognizes an object protruding from the roof of the vehicle. When getting the information that the vehicle is no longer in a dangerous state, the warning can be released immediately to ensure the normal driving of the vehicle. For example, in the case of modifying the driving parameters of the vehicle and actuating the sunroof at the same time, the person quickly hides in the vehicle. At this time, the danger is eliminated, and the modification of the driving parameters of the vehicle can be stopped.

In the method, the environmental sensor is integrated on the drive and recognizes objects protruding from the roof of the vehicle; the limit height is obtained by an on-board radar provided on the head of the vehicle. The sunroof situation can be identified separately by the environmental sensor, and the remote situation of the vehicle can be obtained by another sensor, the on-board radar. The on-board radar can be located in the engine compartment of the vehicle.

In the method, the threshold height is set in the range of 0.5-1 meter or an input value is used as the threshold height. The threshold height can be a fixed value or an input value generated through human-computer interaction.

In the method, if the limit height is not obtained by the environmental sensor, or an object protruding from the top of the vehicle is not recognized, the result of the environmental sensor is not considered.

In the method, the open state of the sunroof is checked by the driver before an object protruding from the roof of the vehicle is identified by the environmental sensor. The open state of the sunroof can be obtained by checking the state of the drive, so it is not necessary to use additional sensors for identification.

Another aspect of the present application is to provide a sunroof system for a vehicle, which includes:

Environmental sensors installed near the sunroof;

a driver that actuates the sunroof; and

A controller executes the method according to the foregoing.

When the vehicle is running and the passenger is outside the window, the sunroof system involved in the present application can ensure the safety of the passenger. When there is a danger of passengers hitting an obstacle, the sunroof system can actively give a warning.

Yet another aspect to which the present application relates is to provide a vehicle comprising a sunroof configured with an environmental sensor disposed near the sunroof and a driver for actuating the sunroof; and a body control module, the body control The module performs the method described above.

Other aspects and features of the present application will become apparent from the following detailed description with reference to the accompanying drawings. It should be understood, however, that the drawings are designed for illustrative purposes only and are not intended to limit the scope of the application, as reference should be made to the appended claims. It should also be understood that the drawings are only intended to conceptually illustrate the structures and processes described herein and are not necessarily drawn to scale unless otherwise indicated.

Description of drawings

The present application will be more fully understood by reference to the following detailed description of the detailed description in conjunction with the accompanying drawings, in which like reference numerals refer to like elements throughout the views. in:

FIG. 1 is a schematic diagram of an embodiment of the method for judging the passing height of a vehicle of the present application on a vehicle;

2 is a flowchart of a method for judging the passing height of a vehicle according to the present application;

3 is a schematic diagram of a sunroof system according to the present application,

FIG. 4 is a schematic diagram of an embodiment of a method for judging a passing height of a vehicle according to the present application.

Detailed ways

In order to help those skilled in the art to understand exactly the subject matter claimed in the present application, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

This application is used when a vehicle encounters a restricted height section ahead during driving, such as when the vehicle is about to enter a tunnel or pass through a bridge, etc., or when there is a height obstacle ahead, such as a hanging facility such as a nameplate. The vehicle has an openable sunroof so that the interior of the vehicle is no longer an enclosed space through which the passenger can travel from the inside to the outside of the vehicle, including that the passenger can stand up, or at least part of the body, such as the upper body, is outside the vehicle, or There are objects on the outside of the windows. The present application can issue a prompt signal to inform the occupants of the vehicle whether the vehicle is in an unsafe state, thereby assisting the safe driving and passing of the vehicle.

FIG. 1 shows a schematic diagram of one embodiment of the method used in the present application on a vehicle. As shown in the figure, an environment sensor 10 , an on-board radar 20 and a body control module (BCM, Body Control Module) 30 are provided on the vehicle. The environmental sensor 10 is located near the sunroof 3 on the top of the vehicle 1 . The environmental sensor 10 is used to identify the external environment of the sunroof 3 . The environmental sensor 10 may be a variety of sensors based on different technologies through which the presence or absence of objects in the external environment is identified. For example, but not limitation, the environment sensor 10 can sense whether there is a person or an object 4 outside the sunroof 3 by emitting short-range waves, or acquire external environment data by capturing images. In the illustrated embodiment, the environmental sensor 10 is integrated with the drive that initiates the opening of the sunroof 3 .

The on-board radar 20 is used to identify obstacles in front of the moving vehicle. It sends out signals (such as lasers, ultrasonic waves, microwaves, etc.) and receives reflected signals to find out whether there are obstacles ahead, such as obstacle 5 in the figure. A road sign with a height limit of 4m is shown in the figure to represent the obstacle 5, it should be appreciated that this is only an example. The in-vehicle radar 20 is arranged on the head of the vehicle 1 , such as in the engine compartment. In addition to on-board radar, other sensors such as cameras can also be used. The vehicle-mounted radar 20 can not only sense the obstacle 5 ahead, but also can calculate and/or obtain the height of the obstacle 5 through the signal.

It is conceivable that whether there is an obstacle in front of the vehicle and the airborne distance of the obstacle can also be obtained through the environment sensor 10 .

The body control module 30 obtains relevant signals based on the environmental sensor 10 and the on-board radar 20, and can perform calculations and processing to pre-determine whether the vehicle is in an unsafe driving state, and can accordingly make a vehicle response to let people in the vehicle know . The body control module is an electronic control unit that controls vehicle components. Typically, the body control module is located in the instrument panel at the front end of the vehicle.

FIG. 2 shows a method of judging the passing height of a vehicle according to the present application. The method includes the following steps:

101. Obtain a limit height defined by an obstacle in front of the vehicle through an environment sensor and identify an object protruding from the top of the vehicle;

102. Comparing the limit altitude to a threshold altitude based on the results of the environmental sensors, and making at least one vehicle response in response to the comparison.

FIG. 3 shows a schematic diagram of a sunroof system performing the above steps. The sunroof system is shown as a block diagram, which includes environmental sensors, drivers and controllers, and the signal communication relationship between them is shown in Figure 3. Environmental sensors are integrated on the drive, with which the controller identifies the environmental conditions on the top of the vehicle and obstacles in front of the vehicle. The controller can instruct the drive action and monitor the working state of the drive. FIG. 3 also shows that the controller can perform environmental recognition through two sensors, ie, the environmental conditions on the top of the vehicle are independently recognized by the environmental sensor and the obstacles in front of the vehicle are independently recognized by the on-board radar.

FIG. 4 is a flow chart of the application of the method according to the present application to the vehicle of FIG. 1 . In block 201, the obstacle in front of the vehicle is identified by the on-board radar. If no obstacle is detected in front of the vehicle, "0" is output to the body control module 30, and if there is an obstacle in front of the vehicle, "1" is output to Body Control Module 30 . The body control module 30 may be specially provided with an input unit 204 that receives a sensor result of "0" and a calculation unit or a comparison unit that starts a subsequent program, as shown in the figure 205 . The calculation or comparison unit 205 is used to receive the signal representing "1" from the on-board radar and the signal representing "1" from the environmental sensor as will be received as follows.

When sensing an obstacle ahead, the body control module 30 can also obtain the limit height of the obstacle via the on-board radar. The limit height of the obstacle can be calculated based on the signal received by the on-board radar, and then the height value is sent to the body control module 30; the limit height of the obstacle can also be sent to the body control module by sending the signal received by the on-board radar to the body control module 30 , which is calculated in the body control module 30 .

In block 202, it is checked whether the sunroof is open. The sunroof is opened or closed by the drive. The body control module 30 may monitor whether the driver of the sunroof is in a working state to determine whether the sunroof is opened. If the sunroof is closed, the BCM or input unit 204 records a "0", if the sunroof is open, the output signal is a "1" and block 203 is executed.

In block 203, the external environment of the sunroof is identified by the environmental sensor. Environmental sensors are integrated on the drive of the sunroof. When no one is outside the sunroof, the input unit 204 receives a signal representing "0". When someone is outside the sunroof, the comparison unit 205 receives a signal representing "1". When the comparison unit 205 simultaneously receives the signals representing "1" from the on-board radar and the environment sensor, it starts a program for pre-judging whether the vehicle is in an unsafe state.

In block 205, the obstacle height and threshold height are used and compared. The threshold height can be a fixed value carried in the body control module, and the fixed value can be set according to the national standard or experience, for example, the threshold height is set in the range of 0.5-1m. Or it can also be an input value, such as a driver inputting a parameter through a human-machine interface. As mentioned earlier, the limit height of obstacles comes from the on-board radar. When the limit height>threshold height (or limit height≥threshold height), execute block 206; when limit height<threshold height (or limit height≤threshold height), execute at least one of blocks 207, 208 or 209.

When the height limit is greater than the threshold height (or the height limit is greater than or equal to the threshold height), the vehicle is in a temporarily safe state, and the body control module sends a prompt signal indicating safety, for example, but not limited to, a prompt signal displayed with a yellow light, such as a box 206. This warning signal can be displayed on the instrument panel so that the driver can see it. This prompt signal can be set through the signal light on the instrument panel, or displayed on the LCD screen on the instrument panel. Of course, the prompt signal may also be an audible signal.

When the height limit is less than the threshold height (or the height limit is less than or equal to the threshold height), the vehicle is in an unsafe state, and the body control module issues a warning signal indicating danger, such as, but not limited to, a warning signal displayed with a green light, as shown in block 207 . The alert signal may be displayed on the dashboard in the same manner as block 206 described above.

In addition to issuing prompt signals, the vehicle can also make other responses. For example and without limitation, in block 208, in order to get out of the dangerous state as soon as possible, the vehicle may modify the driving parameters of the vehicle, such as reducing the vehicle speed, and/or issuing an instruction to further open the sunroof and increase the opening area of the sunroof (block 209), This makes it easier for passengers to return to the vehicle. The above vehicle response can be made in combination with the actual speed of the vehicle and the actual distance between the vehicle and the obstacle one by one or simultaneously. When the passenger returns to the vehicle, the vehicle has returned to a safe state, and the warning signal of speed reduction can be discontinued.

While specific embodiments of the application have been shown and described in detail to illustrate the principles of the application, it should be understood that the application may be embodied in other ways without departing from such principles.

Claims (10)

1. A method for judging the passing height of a vehicle based on a sunroof of the vehicle, characterized in that the sunroof is configured with an environmental sensor and a driver, the method comprising: obtaining a limit height defined by an obstacle in front of the vehicle through the environmental sensor and identifying an object protruding from the top of the vehicle; comparing the limit height to a threshold height based on the results of the environment sensor, and making at least one vehicle response in response to the comparison. 2. The method of claim 1, wherein the at least one vehicle response includes at least one of the following: generating a visual or audible cue signal inside the vehicle, modifying vehicle driving parameters, and A driver actuates the sunroof. 3. The method of claim 2, wherein: displaying the visual prompt signal using an instrument panel; modifying vehicle driving parameters includes reducing vehicle speed; and actuating the sunroof via the driver includes further opening all The skylight is added to increase the open area. 4. The method of claim 2, wherein the at least one vehicle reaction that has occurred is terminated when the environmental sensor no longer recognizes the object protruding from the top of the vehicle. 5 . The method of claim 1 , wherein the environmental sensor is integrated on the driver and recognizes objects protruding from the top of the vehicle; the limit height is obtained by an on-board radar provided on the head of the vehicle. 6 . 6. The method according to claim 1, wherein the threshold height is set between 0.5-1 m or an input value is used as the threshold height. 7 . The method according to claim 1 , wherein if the limit height is not obtained by the environmental sensor, or an object protruding from the top of the vehicle is not recognized, the result of the environmental sensor is not considered. 8 . 8 . The method of claim 1 , wherein the open state of the sunroof is checked by the driver before identifying an object protruding from the roof of the vehicle by the environmental sensor. 9 . 9. A sunroof system for a vehicle, characterized by comprising: Environmental sensors installed near the sunroof; a driver that actuates the sunroof; and A controller performing the method according to any of claims 1-8. 10. A vehicle comprising: a sunroof, the sunroof is configured with an environmental sensor disposed near the sunroof and a driver for actuating the sunroof; A body control module performing the method of any of claims 1-8.

Images