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Lane keeping system for autonomous vehicle during camera drop-outs

A lane and vehicle technology, applied in the field of vehicle lane position and sensing vehicle environment, can solve problems that are not the best practice, not very reliable, etc.

Active Publication Date: 2017-12-22
APTIV TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this approach is that it may no longer depend on the master sensor indefinitely, making it not a best practice and not very reliable

Method used

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  • Lane keeping system for autonomous vehicle during camera drop-outs
  • Lane keeping system for autonomous vehicle during camera drop-outs
  • Lane keeping system for autonomous vehicle during camera drop-outs

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Embodiment Construction

[0032] Figure 1a and 1b A schematic diagram of a vehicle 10 traveling on a road is shown in . The vehicle 10 includes an environment sensing system 16 for detecting lane markings 14 defining lanes 12 of a road. The disclosed environmental sensing relates to lane sensing, blind spot sensing, and other vehicle active safety sensing. During operation, the vehicle's lane position is detected and when sufficiently reliable data is obtained, little or no input from the driver is used for applications such as Lane Keeping Assist (LKA), Lane Centering (LC), Traffic Jam Assist ( TJA) and / or such features of full autonomous control of the vehicle as steering input to keep the vehicle within the lane.

[0033] In one embodiment, environment sensing system 16 includes first, second, third and fourth sensors that provide first, second, third and fourth "bird's eye view" or signals 26, 28, 30, 32, respectively. Sensors 18, 20, 22, 24. Sensors are used to identify lane markings 14 by de...

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PUM

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Abstract

An environmental sensing system relating to vehicle lane position includes first and second sensors respectively configured to provide first and second signals indicative of a vehicle lane position. A steering system achieves a desired lane position in response to a command from a controller to keep the vehicle in its lane, for example, during autonomous control of the vehicle. The controller uses the first signal if the first sensor provides a desired lane marker confidence. The controller switches to the second sensor and uses the second signal if the first sensor cannot provide the desired lane marker confidence and the second sensor can provide the desired lane marker confidence.

Description

Background technique [0001] The present disclosure relates to an environment sensing system that is concerned with reliably identifying vehicle lane positions for lane keeping in eg fully autonomous vehicles or driver assisted vehicles. [0002] Vehicle lane position is increasingly used in modern vehicles for such features as Lane Keeping Assist (LKA), Lane Centering (LC) and Traffic Jam Assist (TJA) including aspects of LKA and LC. During operation, the vehicle's lane position is detected and the vehicle is kept within the lane with little or no steering input from the driver. Such features are also required for autonomous vehicles. [0003] In a typical approach, the vehicle's lane position is adjusted by using an environment sensing system with one or more cameras and a distance ranging sensor (eg, LIDAR or radar). Lane marking edges are detected by sensors, but some kind of vision based sensor is usually used as the primary sensor for vehicle control in the form of a fr...

Claims

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Application Information

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IPC IPC(8): B60W30/12B60R16/023
CPCB60R16/023B60W30/12G05D1/0246B62D15/025B60W2420/403B60W2420/408B60W2710/18B60W2710/20B60W2710/22
Inventor P·K·普拉萨德J·S·格林P·R·马丁代尔
Owner APTIV TECH LTD