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Method and apparatus for predictively acquiring parameter values ​​of a vehicle-drivable surface

A technology for driving surfaces and parameter values, applied in the field of control equipment implementing the method, can solve problems such as information no longer being up-to-date

Active Publication Date: 2019-12-24
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage of the transmission of information, in particular friction values, from a vehicle driving ahead is also that the information may no longer be up to date: the situation may suddenly change, for example due to rain, oil stains or any obstacle

Method used

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  • Method and apparatus for predictively acquiring parameter values ​​of a vehicle-drivable surface

Examples

Experimental program
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Embodiment Construction

[0072] figure 1 A vehicle 1 using a road 2 is shown in . The road 2 has a road surface 2a whose characteristics are position-dependent. The road 2 has two roadways 2.1 marked by road markings 2.3 and having a respective roadway surface 2.1a. Roadway surface 2.1a can consist of the same material or also of mutually different materials, for example two different asphalts. The road 2 also has a shoulder 2.2 and is bounded on both sides by guardrails 3 . Next to the shoulder 2.2 there is a boundary column 4.

[0073] Vehicle 1 is traveling in direction F towards danger zone B1 on roadway 2 . 1 to the right. A non-travelable area B2, for example an area blocked by an obstacle H, is marked on the shoulder 2.2. Vehicle 1 has a vehicle system 100 which is coupled to or has a control device 10 . Vehicle system 100 may be designed as a driver assistance system or have such a driver assistance system. The control device 10 serves to detect the course of the road 2 and to determine...

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Abstract

The invention relates to a method for predictively acquiring parameter values ​​of a drivable surface (2) of a vehicle (1) and providing said parameter values ​​to at least one driver assistance system (100) of the vehicle, by means of detection of the total surface (2, 2.1, B1, B2) on which the vehicle (1) travels, wherein it is determined within the total surface (2, 2.1, B1, B2) that the vehicle can actually The subregion (2, 2.1, B1) of the travel, and also acquires the parameter values ​​only for this subregion (2, 2.1, B1). Furthermore, the invention relates to a control device (10) for carrying out the method.

Description

technical field [0001] The invention relates to a method for predictively acquiring parameter values ​​of a surface on which a vehicle can drive. Furthermore, the invention relates to a control device for carrying out the method. Background technique [0002] In the field of driver assistance and safety systems for vehicles, it is desirable to be able to record and evaluate as comprehensive and detailed information about the environment or surroundings as possible in order to optimize the vehicle control for the surroundings. Information about road properties, in particular surfaces and their friction values, is important, for example to prevent driver assistance and safety systems from changing the driving state too suddenly or too late, for example by braking hard or not warning of dangerous situations at all. If the friction value of the road surface or the variation of the friction value in a region of the road surface is known, for example, the expected braking path ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00B60W40/068
CPCB60W40/068B60W50/0097B60W40/06B60W2420/40G06V20/588G06V20/58B60W2420/403G01N19/02G01J5/02
Inventor A·西格尔M·赖歇尔
Owner AUDI AG