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DE-102014225881-B4 - Method for operating a collision warning system

DE102014225881B4DE 102014225881 B4DE102014225881 B4DE 102014225881B4DE-102014225881-B4

Abstract

Method for operating a collision warning system (82) in a vehicle (80) designed to warn of objects (16, 18, 20) in a detection range (12, 14, 90) approaching the vehicle (80), wherein the collision warning system (82), which is deactivated, is automatically activated due to an object (16, 18, 20) in the detection range (12, 14, 90), and wherein the collision warning system (82) is automatically activated when the vehicle (80) moves away from an object (16, 18, 20) whose approach was the reason for deactivation.

Inventors

  • Ruprecht Anz
  • Florian Feile

Assignees

  • ROBERT BOSCH GMBH

Dates

Publication Date
20260513
Application Date
20141215

Claims (8)

  1. Method for operating a collision warning system (82) in a vehicle (80) designed to warn of objects (16, 18, 20) in a detection range (12, 14, 90) approaching the vehicle (80), wherein the collision warning system (82), which is deactivated, is automatically activated due to an object (16, 18, 20) in the detection range (12, 14, 90), and wherein the collision warning system (82) is automatically activated when the vehicle (80) moves away from an object (16, 18, 20) whose approach was the reason for deactivation.
  2. Procedure according to Claim 1 , in which the collision warning system (82) is automatically activated when a new object (16, 18, 20) approaches the vehicle (80) within the detection range (12, 14, 90).
  3. Procedure according to Claim 1 or 2 , which is performed depending on the speed.
  4. Procedure according to one of the Claims 1 until 3 , which is carried out in a rail vehicle.
  5. Collision warning system for a vehicle (80), wherein the collision warning system (82) is designed to warn of objects (16, 18, 20) in a detection range and is configured to perform a procedure according to one of the Claims 1 until 4 to carry out, with a user interface (10, 94) for deactivating the collision warning system (82) and an evaluation unit (84) which is set up to automatically activate the deactivated collision warning system (82) depending on an object (16, 18, 20) in the detection area (12, 14, 90).
  6. Collision warning system after Claim 5 with a graphical user interface (10) for switching off the collision warning system (82).
  7. Collision warning system after Claim 6 , wherein the user interface (10, 94) is set up to be deactivated by selecting an object (16, 18, 20) in the detection area (12, 14, 90).
  8. Collision warning system after one of the Claims 5 until 7 , which has a warning device (92).

Description

The invention relates to a method for operating a collision warning system and such a collision warning system that is used in a vehicle. State of the art Driver assistance systems are increasingly being used in vehicles, particularly motor vehicles, to support the driver in controlling the vehicle. For example, collision warning systems are well-known. These systems warn the driver of impending collisions and, if necessary, prevent them by intervening in the vehicle's operation. Collision warning systems use sensors to detect distances to other objects within their detection range. In particular, they evaluate changing distances between the vehicle and other objects, thus enabling them to warn the driver of potential collisions. Collision warning systems are used in motor vehicles, such as in the automotive sector, but also in rail vehicles. Various sensors, for example based on ultrasound, radar, laser scanners, and video, are used in rail vehicles such as shunting locomotives, track maintenance machines, trams, etc., for collision warning. When the vehicle approaches an object, the driver and/or those nearby are warned visually and/or audibly. It should be noted that rail vehicles intentionally approach each other during operation, for example, when coupling. Therefore, operators require that warning systems can be deactivated or switched off. A method and a device for collision warning are described in the publication. DE 10 2005 011 241 A1 The system is known for detecting objects in front of the vehicle. A delay criterion determines whether a warning is issued. Different criteria can be defined for a potential collision object, allowing for different warning levels to be set. In some applications, it is necessary to give the driver the option to switch off or deactivate the collision warning system, so that no warning signal is given when approaching an object intentionally. The printed matter DE 10 2004 062 496 A1 This describes a method for operating a vehicle's collision avoidance system, designed to warn of objects approaching the vehicle within a detection range. The collision avoidance system is activated when an imminent collision with a detected object is identified. The printed matter DE 101 61 567 A1 describes a motor vehicle with an acoustic and/or optical distance warning system that includes several distance sensors and at least one optical and/or acoustic alarm device and can be activated automatically. The printed matter DE 101 61 567 B4 This describes a motor vehicle equipped with an acoustic and/or visual warning system. The warning system comprises several distance sensors, an evaluation unit, and at least one visual and/or acoustic alarm device. It also includes means for determining the lane width of the road being traveled. The distance warning system can be automatically deactivated via the evaluation unit. The driver can also manually deactivate the distance warning system by pressing an operating element. If, for example, a narrowing of the road is encountered again after several kilometers, the deactivation signal previously given by the driver is no longer valid, and the warning system can be reactivated. The possibility of deactivating the collision warning system raises the question of when and how it can be reliably reactivated. Disclosure of the invention Against this background, a method according to claim 1 and a collision warning system with the features of claim 5 are presented. Further details can be found in the dependent claims and the description. The described procedure assumes that a vehicle's collision warning system is deactivated, for example, by the driver during an intentional approach to an object. The collision warning system is automatically reactivated only when the vehicle moves away from the object after approaching it. Alternatively or additionally, the system can also reactivate the deactivated collision warning system when a new object approaches the vehicle. Generally, the collision warning system is automatically activated when an object is detected within its detection range. A deactivated collision warning system is a collision warning system that is operational and calculating, but is not capable of or configured to issue a warning signal. An activated collision warning system is a collision warning system that is calculating and capable of issuing a warning signal. Activating the collision warning system means putting it into a state where it is capable of emitting a warning signal. Deactivating or switching it off means, for example, that the driver puts the collision warning system into a state where it is not configured to emit a warning signal. Deactivating or switching it off can immediately stop any warning signal being emitted. The driver can therefore deactivate the collision warning system if a warning signal is already being emitted, or even if no warning signal is currently being emitted, to prevent a warning signal from being emit