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Predictive Road Section Guidance for Vehicles

A technology of vehicles and sections, applied in the field of road section guidance for vehicle prediction

Active Publication Date: 2021-11-12
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when driving dynamics variables such as the yaw rate have an offset, there can be a constant or gradual drift between the directly measured yaw rate and the yaw rate calculated with the aid of the navigation system from the curve of the road difference

Method used

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  • Predictive Road Section Guidance for Vehicles
  • Predictive Road Section Guidance for Vehicles
  • Predictive Road Section Guidance for Vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] figure 1 A vehicle 1 is shown on a two-lane street or a road 2 with two lanes, the road 2 being divided into two traffic lanes by lateral markings 3 and 4 and a central marking 5 . The vehicle is in the first segment 6, at figure 1 In the example of , the first section 6 is realized by a straight road section, and the vehicle moves toward the curve 7 , wherein the vehicle 1 is still a certain distance from the top of the curve, that is, the apex of the curve. After the curve 7, the road 2 transitions into a second section 8, which in the present example is again formed by straight sections.

[0034] figure 2 show figure 1 Together with the situation of vehicle 1 on road 2 before a right curve. The course of the road 2 , which is actually contained in the digital map material, is formed by a first section 6 , a sharp curve 7 and a second section 8 adjoining the curve 7 . The asymptotic algorithm of the course of the street forms a clothoid segment 9 which starts at...

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PUM

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Abstract

A method and apparatus for predicting the future direction of a road for a vehicle traveling on a road having a first section, a curve and a second section, and the curve is arranged between the first section and the second section Between segments, the method comprises the steps of: - determining an asymptotically calculated road orientation derived from digital map material by means of an original clothoid segment having a starting point on a first segment, a end point on the segment, and the clothoid segment passes through the angle specified by the curve between the first segment and the second segment, the original clothoid segment is continuously corrected by subsequent corrected clothoid segments, wherein each corrected Clothoid segments each take into account the curvature of the distance the vehicle has actually traveled after the starting point.

Description

technical field [0001] The present invention relates to a method for predicting the future course of a road for vehicles traveling on a road and a device for predicting the future course of the road for vehicles traveling on a road, wherein the road has a first section, a curve and the second section, and the bend is arranged between the first section and the second section, and wherein the device is arranged and designed to perform the method described above. Background technique [0002] At present, digital maps are used in vehicles mainly for navigation purposes in the vehicle's own navigation system, but among them, the digital map data are also used to a greater extent in vehicle guidance by auxiliary systems. Such map data can thus be used, for example, by predictive adaptive cruise control systems in order to adjust the speed before curves or to improve lateral guidance assistance systems with the aid of map data. If the digital map data does not correspond to realit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/12B60W40/072
CPCB60W30/12B60W40/072G01C21/3819G01C21/3848B60W30/10B60W30/165B60W50/0097G01C21/3602B60W2552/30B60W2556/50B60W2556/10G06V20/588B60W2420/403B60W40/114G01C21/30
Inventor T.艾格尔
Owner VOLKSWAGEN AG