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Off-track detection system

A detection system and yaw technology, which is applied in the field of yaw detection system, can solve the problems such as the inability to provide signal identification degree, and achieve reliable detection, simple and effective detection

Inactive Publication Date: 2009-10-07
VOLVO LASTVAGNAR AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] While the aforementioned rumble band response system can detect rumble bands, it does not provide the degree of signal discrimination that would allow the system to determine the nature of the rumble band, and the degree of potential hazard associated with a moving vehicle

Method used

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Embodiment Construction

[0070] In general, the present invention relates to a yaw detection system for road vehicles. The yaw detection system analyzes signals indicative of vibrations generated in response to one or more tires of a road vehicle making moving contact with rumble strips and / or lane markings of a road or highway. The signals are generated by a plurality of vibration sensors mounted at various spatial locations within the vehicle that are susceptible to vibrations generated due to the moving contact of the vehicle's tires with the rumble strip. The system can analyze the signal to detect characteristics of different types of rumble bands from the signal. In addition, the system may also determine the duration of the signal with respect to its corresponding sensor to determine the vehicle trajectory and thereby determine potential collision events to which the vehicle may potentially be subjected. While the yaw detection system of the present invention can be implemented using signal an...

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Abstract

There is provided a method of warning a driver of a vehicle (200) when the vehicle (200) is traversing rumble features (20, 30, 40) demarcating tracks on a road surface (10). The method comprises steps of: (a) receiving accelerometer output signals (S1) from accelerometers (500a, 500b, 510a, 510b, 520a, 520b, 530a, 530b, 540a, 540b, 50a, 50b, 56Oa, 560b, 570a, 570b) spatially disposed at positions in the, vehicle (200) susceptible to vibrating in response to wheels (350a, 350b, 360a, 360b, 370a, 370b, 380a, 380b) of the vehicle (200) coming in driven contact with the rumble features (20, 30, 40); (b) receiving the accelerometer output signals (S1) at a processor (740), and using adaptive filters (1000) thereat for isolating signal components present in the accelerometer output signals (S1) indicative of the rumble features (20, 30, 40); and (c) monitoring in a logic unit (1100) of the processor (740) a temporal sequence (800) of occurrence of the signal components for determining whether or not the vehicle (200) is traversing the rumble features (20, 30, 40) and generating the warning signals when the sequence corresponds to the vehicle (200) driving off-track.

Description

technical field [0001] The present invention relates to an off-track detection system for alerting the driver of a vehicle that the vehicle has crossed lane boundaries and edge features of a road, highway, highway, or the like. Furthermore, the present invention also relates to a method of detecting when a vehicle has crossed lane boundaries and edge features of a road, motorway, highway, etc.; such methods may be used by the aforementioned systems. Furthermore, the invention also relates to a software product executable on computer hardware for implementing the method. Background technique [0002] In relation to the present invention, the term "vehicle" is interpreted as pertaining to a vehicle comprising a plurality of wheels and capable of driving on roads, highways, highways, etc.; the vehicle is driven by a driver, which is a human and / or an automated driving system. A vehicle may be embodied as, for example, a motorcycle, car, van or truck. Optionally, the vehicle h...

Claims

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Application Information

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IPC IPC(8): B60W30/12B60K28/06B60W10/18B60W10/20B62D15/02G08G1/16B60W50/14
CPCB60W2550/147B60W30/12B62D15/029B60W10/20B60W10/18B60W50/14B60W2552/35B60K28/066B60W2552/53
Inventor 拉尔斯·伯耶松佩尔·哈塞尔贝里埃里克·卡莱舍
Owner VOLVO LASTVAGNAR AB