The present invention generally relates to motor vehicles, and more particularly relates to systems and methods for preventing motor vehicle side doors from coming into contact with obstacles.
Many motor vehicles have motorized systems for opening one or more of the vehicle's side doors. These motorized systems may include features that are intended to detect obstacles in the opening path of the side doors while the side doors are being opened. However, these systems detect the obstacle by actually coming into physical contact with the obstacle. For example, a side door detects that an obstacle (e.g., another automobile, a person, etc.) is within its opening path when the side door contacts the obstacle.
Accordingly, it is desirable to provide systems and methods for preventing a motor vehicle side door from coming into contact with an obstacle. Furthermore, other desirable features and characteristics of the present invention will become apparent from the subsequent detailed description and the appended claims, taken in conjunction with the accompanying drawings and the foregoing technical field and background.
Systems are provided for preventing a motor vehicle side door from coming into contact with an obstacle. One system comprises an outside rear view mirror configured to be coupled to the motor vehicle side door, a camera coupled to the outside rear view mirror, and a controller coupled to the camera. The camera is configured to detect the obstacle and determine the distance between the motor vehicle side door and the obstacle, and the controller is configured to disable the motor vehicle side door if the obstacle is within a threshold distance of the motor vehicle side door.
Another system comprises an outside rear view mirror configured to be coupled to a motor vehicle side door, an ultrasonic sensor coupled to the outside rear view mirror, and a controller coupled to the ultrasonic sensor. The ultrasonic sensor is configured to detect the obstacle and determine the distance between the motor vehicle side door and the obstacle, and the controller is configured to disable the motor vehicle side door if the obstacle is within a threshold distance of the motor vehicle side door.
Methods are provided for preventing a plurality of motor vehicle side doors from contacting an obstacle. One method comprises the steps of determining the distance between the plurality of motor vehicle side doors and the obstacle, and automatically disabling each motor vehicle side door that is within a threshold distance of the obstacle.
The present invention will hereinafter be described in conjunction with the following drawing figures, wherein like numerals denote like elements, and
The following detailed description is merely exemplary in nature and is not intended to limit the invention or the application and uses of the invention. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description.
Detector 110 is coupled to motor controller 120, and is configured to monitor the environment surrounding detector 110 to detect the presence of an obstacle. Furthermore, detector 110 is configured to determine the distance the obstacle is away from one or more reference points (e.g., a motor vehicle door, a projected opening/closing path of the motor vehicle side door(s), etc.) and determine if the obstacle is at and/or within a threshold distance of one or more reference points (e.g., within the threshold distance of the side door(s) or the opening/closing path of one or more side doors).
To determine if an obstacle is present, and if present, the distance the obstacle is away from the reference point, detector 110 comprises components for visually and/or non-visually monitoring the opening/closing path of one or more side doors of the motor vehicle and detecting the presence of the obstacle within the opening/closing path. In other words, detector 110 determines the distance the obstacle is away from a motor vehicle side door to determine if the motor vehicle can be opened without contacting the obstacle. When detector 110 visually and/or non-visually detects that an obstacle is present and is within the opening/closing path, detector 110 is configured to transmit a signal to motor controller 120 indicating such.
Motor controller 120 is configured, upon receiving the signal transmitted from detector 110, to command motor 130 to disable each side door that has an obstacle within a threshold distance of its respective opening/closing path. In one embodiment, motor 130 disables a side door by stopping the side door when the side door is in motion. In another embodiment, motor 130 disables the side door by preventing the side door from opening or closing when the side door is at rest. In yet another embodiment, motor 130 disables the side door by reversing the direction of the side door. Specifically, if motor 130 is in the process of opening the side door, motor 130 disables the side door by closing the side door. Similarly, if motor 130 is in the process of closing the side door, motor 130 disables the side door by opening the side door.
In accordance with one exemplary embodiment, camera 1110 is a 3D time-of-flight imager. Here, when camera 1110 detects an obstacle within the threshold distance of the side door or the opening/closing path, camera 1110 is configured to transmit a signal to processor 1120 indicating such.
Processor 1120 is configured to receive the signals from camera 1110 indicating that an obstacle is present in the environment, the distance the obstacle is away from the side door, and/or if the obstacle is at and/or within the threshold distance of the opening/closing path of the side door. Processor 1120 is also configured to process the signals from camera 1110 and selectively transmit a signal to motor controller 120 (see
In another embodiment (see
Sensor 1130 may be any device, hardware, and/or software capable of visually or non-visually (e.g., electrically, magnetically, optically, etc.) monitoring and detecting the presence of an obstacle. Furthermore, sensor 1130 is also configured to determine the distance the obstacle is away from sensor 1130 and if the obstacle is within a threshold distance of the motor vehicle side door or the opening/closing path of the side door. Sensor 1130 is configured to determine how far an obstacle is away from the side door or opening/closing path using capacitive sensing and/or other electrical distance-determining techniques.
In one exemplary embodiment, sensor 1130 is a capacitive or near-field sensor configured to form a capacitive element (e.g., a capacitor) when a conductive obstacle is at and/or within the threshold distance of sensor 1130. During operation, when sensor 1130 detects an obstacle within the threshold distance of the side door of the opening/closing path, sensor 1130 is configured to transmit a signal to processor 1120 indicating such.
In this embodiment, processor 1120 is configured to receive the signals from camera 1110 and/or sensor 1130 indicating that an obstacle is present in the environment, the distance the obstacle is away from the side door, and/or if the obstacle is at and/or within the threshold distance of the opening/closing path. Processor 1120 is also configured to process the signals from camera 1110 and/or sensor 1130, and selectively transmit a signal to motor controller 120 (see
Ultrasonic sensor 1115 may be any hardware, software, and/or device capable of sonically monitoring and detecting the presence of an obstacle. Ultrasonic sensor 1115 is also configured to determine the distance the obstacle is away from ultrasonic sensor 1115 and if the obstacle is within a threshold distance of one or more motor vehicle side doors or the opening/closing path of the side door(s). Specifically, ultrasonic sensor 1115 is pre-programmed to know the vector (i.e., the distance and direction) in which one or more of the side doors of the vehicle opens/closes and is capable of monitoring the environment surrounding the door(s) to determine if an obstacle is within the threshold distance using sound waves, radio waves, and/or other similar distance-determining techniques.
In accordance with one exemplary embodiment, ultrasonic sensor 1115 is a transducer that generates and transmits sound waves. When ultrasonic sensor 1115 detects an obstacle within the threshold distance of the side door or opening/closing path, ultrasonic sensor 1115 is configured to transmit a signal to processor 1120 indicating such.
Processor 1120 is configured to receive the signals from ultrasonic sensor 1115 indicating that an obstacle is present in the environment, the distance the obstacle is away from the reference point, and/or if the obstacle is at and/or within the threshold distance of the reference point. Processor 1120 is also configured to process the signals from ultrasonic sensor 1115 and selectively transmit a signal to motor controller 120 (see
In another embodiment (see
Sensor 1130 may be any device, hardware, and/or software capable of non-visually (e.g., electrically, magnetically, optically, etc.) monitoring and detecting the presence of an obstacle. Furthermore, sensor 1130 is also configured to determine the distance the obstacle is away from sensor 1130 and if the obstacle is within a threshold distance of a side door or an opening/closing path of the side door. Sensor 1130 is configured to determine how far an obstacle is away from the reference point using capacitive sensing and/or other electrical distance-determining techniques.
In one exemplary embodiment, sensor 1130 is a capacitive or near-field sensor configured to form a capacitive element (e.g., a capacitor) when a conductive obstacle is at and/or within a threshold distance of sensor 1130. When sensor 1130 detects an obstacle, sensor 1130 is configured to transmit a signal to processor 1120 indicating such.
In this embodiment, processor 1120 is configured to receive the signals from ultrasonic sensor 1115 and sensor 1130 indicating that an obstacle is present in the environment, the distance the obstacle is away from the side door, and/or if the obstacle is at and/or within the threshold distance of the side door or the opening/closing path of the side door. Processor 1120 is also configured to process the signals from ultrasonic sensor 1115 and/or sensor 1130, and selectively transmit a signal to motor controller 120 (see
In accordance with various embodiments of detector 110, camera 1110 or ultrasonic sensor 1115 is located on a side portion of a motor vehicle. For example, camera 1110 or ultrasonic sensor 1115 may be located on or proximate to an outside rear view mirror (OSRVM), air flow vents, or any other applied trim parts on the side of the motor vehicle. In one embodiment (see
With reference to
With continued reference to
For example, to determine the distance from point 730 to obstacle 750, camera 1110/ultrasonic sensor 1115 is configured to use the following formula: L1=X(sin(θ1+θ2)). In determining the distance from point 740 to obstacle 750, camera 1110/ultrasonic sensor 1115 is configured to use the following formula: L2=Y(sin(θ2)). Moreover, by comparing the calculated distances (i.e., L1 and L2), camera 1110/ultrasonic sensor 1115 is capable of determining the orientation of obstacle 750 with respect to motor vehicle 700. That is, if L1 is greater than L2 (i.e., L1>L2), then obstacle 750 is slanted toward the rear portion of motor vehicle 700, whereas if L1 is less than L2 (i.e., L1<L2), then obstacle 750 is slanted toward the front portion of motor vehicle 700.
In embodiments where camera 1110/ultrasonic sensor 1115 includes a field-of-view represented by the angle θ1′, camera 1110/ultrasonic sensor 1115 is configured to arbitrarily pick a sub-angle (e.g., θ1) within the angle θ1′ for measuring the distance Y. In one embodiment, the sub-angle is an angle that is approximately one-half of angle θ1′. For example, if the angle θ1′ is 100 degrees, the sub-angle would be 50 degrees. In other embodiments, the ratio selected for the sub-angle may be greater than or less than one-half The distance Y can then be calculated and used similar to the discussion above.
In other embodiments, camera 1110/ultrasonic sensor 1115 is configured to detect (e.g., scan) the length obstacle 750 to find an end point of obstacle 750, the end point including a distance Y just prior to the distance Y becoming infinity long. In one embodiment, camera 1110/ultrasonic sensor 1115 is configured to calculate the distance Y to the end point and create a profile of obstacle 750 by connecting the end point to the point of obstacle 750 from which distance X is determined. In another embodiment, camera 1110/ultrasonic sensor 1115 is configured to calculate one or more distances Y to various points on obstacle 750 in addition to the end point to generate a more detailed distance profile of obstacle 750. In this embodiment, camera 1110/ultrasonic sensor 1115 is configured to connect the various points on obstacle 750 to generate the distance profile of obstacle 750.
If obstacle 750 or any portion of obstacle 750 is detected within the threshold distance or within the opening/closing path of front-side door 710 and/or rear-side door 715, camera 1110/ultrasonic sensor 1115 is configured to transmit a signal to processor 1120 (see
When front-side door 710 is open or opening (see
For example, to determine the distance from point 760 to obstacle 750, camera 1110/ultrasonic sensor 1115 is configured to use the following formula: L3=P(sin(θ3+θ4+θ5)). In determining the distance from point 735 to obstacle 750, camera 1110/ultrasonic sensor 1115 is configured to use the following formula: L4=Q(sin(θ4+θ5)). Moreover, by comparing the calculated distances (i.e., L3 and L4), camera 1110/ultrasonic sensor 1115 is capable of determining the orientation of obstacle 750 with respect to motor vehicle 700 similar to the discussion above with respect to
If obstacle 750 is detected within the threshold distance or within the opening/closing path of front-side door 710, camera 1110/ultrasonic sensor 1115 is configured to transmit a signal to processor 1120 (see
In addition, when front-side door 710 is open and obstructs the field of view of camera 1110 or the scan range of ultrasonic sensor 1115, sensor 1130 is capable of determining if obstacle 750 or another obstacle is present within the threshold distance of and/or within the opening/closing path of rear-side door 715. That is, sensor 1130 is capable of determining if an obstacle is within a sensory range 1132 of rear-side door 715, and if so, transmit a signal to processor 1120 indicating such so that processor 1120 can notify motor controller 120 (see
While at least one exemplary embodiment has been presented in the foregoing detailed description, it should be appreciated that a vast number of variations exist. It should also be appreciated that the exemplary embodiment or exemplary embodiments are only examples, and are not intended to limit the scope, applicability, or configuration of the invention in any way. Rather, the foregoing detailed description will provide those skilled in the art with a convenient road map for implementing the exemplary embodiment or exemplary embodiments. It should be understood that various changes can be made in the function and arrangement of elements without departing from the scope of the invention as set forth in the appended claims and the legal equivalents thereof.
Number | Name | Date | Kind |
---|---|---|---|
5307271 | Everett et al. | Apr 1994 | A |
6234520 | Breed et al. | May 2001 | B1 |
7147246 | Breed et al. | Dec 2006 | B2 |
7164117 | Breed et al. | Jan 2007 | B2 |
7193509 | Bartels et al. | Mar 2007 | B2 |
7232001 | Hakki et al. | Jun 2007 | B2 |
7251789 | Obradovich | Jul 2007 | B2 |
7438346 | Breed | Oct 2008 | B1 |
7663502 | Breed | Feb 2010 | B2 |
7843153 | Held et al. | Nov 2010 | B2 |
7882921 | Hakki et al. | Feb 2011 | B2 |
20040055110 | Breed et al. | Mar 2004 | A1 |
20050046584 | Breed | Mar 2005 | A1 |
20060043712 | Hakki et al. | Mar 2006 | A1 |
20060178787 | McCall | Aug 2006 | A1 |
20060208169 | Breed et al. | Sep 2006 | A1 |
20060222207 | Balzer et al. | Oct 2006 | A1 |
20080119994 | Kameyama | May 2008 | A1 |
20080129684 | Adams et al. | Jun 2008 | A1 |
20080296926 | Hanzel et al. | Dec 2008 | A1 |
20080309060 | Hakki et al. | Dec 2008 | A1 |
20090000196 | Kollar et al. | Jan 2009 | A1 |
20090259372 | Hijikata et al. | Oct 2009 | A1 |
20100082206 | Kollar et al. | Apr 2010 | A1 |
Number | Date | Country |
---|---|---|
101175516 | Oct 2002 | DE |
2005008007 | Jan 2005 | WO |
2005044639 | May 2005 | WO |
Entry |
---|
Vision-based side vehicle detection from a moving vehicle; Wen-Chung Chang; Kuo-Jung Hsu; System Science and Engineering (ICSSE), 2010 International Conference on; Digital Object Identifier: 10.1109/ICSSE.2010.5551779 Publication Year: 2010 , pp. 553-558. |
An obstacle detection method by fusion of radar and motion stereo; Kato, T.; Ninomiya, Y.; Masaki, I.; Intelligent Transportation Systems, IEEE Transactions on; vol. 3 , Issue: 3; Digital Object Identifier: 10.1109/TITS.2002.802932; Publication Year: 2002 , pp. 182-188. |
Towards a closer fusion of active and passive safety: Optical flow-based detection of vehicle side collisions; Michalke, T.P.; Stein, F.; Franke, U.; Intelligent Vehicles Symposium (IV), 2011 IEEE; Digital Object Identifier: 10.1109/IVS.2011.5940446 Publication Year: 2011 , pp. 181-188. |
Obstacle avoidance strategy based on adaptive potential fields generated by an electronic stick ; Lopes, E.P.; Aude, E.P.L.; Silveira, J.T.C.; Serdeira, H.; Intelligent Robots and Systems, 2005. (IROS 2005). 2005 IEEE/RSJ International Conference on Digital Object Identifier: 10.1109/IROS.2005.1544996; Publication Year: 2005 , pp. 2626-2631. |
An obstacle avoidance system for an electric wheelchair; Brown, M.; Bradley, D.; New Developments in Electric Vehicles for Disabled Persons, IEE Colloquium on; Digital Object Identifier: 10.1049/ic:19950376; Publication Year: 1995 , pp. 4/1-4/4. |
Combined Capacitive and Ultrasonic Distance Measurement for Automotive Applications; Schlegl, T.; Bretterklieber, T.; Neumayer, M.; Zangl, H.; Sensors Journal, IEEE; Vol. 11 , Issue: 11; Digital Object Identifier: 10.1109/JSEN.2011.2155056 Publication Year: 2011 , pp. 2636-2642. |
Reactive navigation in dynamic environment using a multisensor predictor; Kai-Tai Song; Chang, C.C. Systems, Man, and Cybernetics, Part B: Cybernetics, IEEE Transactions on; vol. 29 , Issue: 6; Digital Object Identifier: 10.1109/3477.809039 Publication Year: 1999 , pp. 870-880. |
A novel sensor fusion concept for distance measurement in automotive applications; Schlegl, T.; Bretterklieber, T.; Neumayer, M.; Zangl, H.; Sensors, 2010 IEEE; Digital Object Identifier: 10.1109/ICSENS.2010.5690781; Publication Year: 2010 , pp. 775-778. |
An Interior Compartment Protection System Based on Motion Detection Using CMOS Imagers, S. B. Park et al., 1998 IEEE Int'l Conf. on Intelligent Vehicles, pp. 297-301. |
Omnidirectional Vision Sensor for Intelligent Vehicles, T. Ito et al., 1998 IEEE Int'l Conf. on Intelligent Vehicles, pp. 365-270. |
Robust image processing for an omnidirectional camera-based smart car door; Scharfenberger, C.; Chakraborty, S.; Farber, G. Embedded Systems for Real-Time Multimedia, 2009. ESTIMedia 2009. IEEE/ACM/IFIP 7th Workshop on Digital Object Identifier: 10.1109/ESTMED.2009.5336817; Publication Year: 2009 , pp. 106-115. |
Towards a closer fusion of active and passive safety: Optical flow-based detection of vehicle side collisions; Michalke, T.P.; Stein, F.; Franke, U.; Intelligent Vehicles Symposium (IV), 2011 IEEE; Digital Object Indentifier: 10.1109/IVS.2011.5940446 Publication Year: 2011 , pp. 181-188. |
Anti-trap protection for an intelligent smart car door system; Scharfenberger, C.; Chakraborty, S.; Zelek, J.; Clausi, D. Intelligent Transportation Systems (ITSC), 2012 15th International IEEE Conference on; Digital Object Identifier: 10.1109/ITSC.2012.6338635; Publication Year: 2012 , pp. 1734-1740. |
German Patent Office, German Office Action dated Jun. 20, 2012 for German Application No. 10 2009 042 927.1. |
Number | Date | Country | |
---|---|---|---|
20100082206 A1 | Apr 2010 | US |