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Method for modifying steering of an automated vehicle for improved passenger comfort

A vehicle, host vehicle technology, applied in the field of passenger comfort systems, to solve problems such as intermittent availability of geographic positioning systems limiting system reliability

Active Publication Date: 2018-11-23
APTIV TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even where digitized map databases for a given road do directly represent actual lane boundaries, problems with sporadic position errors and intermittent availability of geolocation systems have limited the reliability of these systems

Method used

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  • Method for modifying steering of an automated vehicle for improved passenger comfort
  • Method for modifying steering of an automated vehicle for improved passenger comfort
  • Method for modifying steering of an automated vehicle for improved passenger comfort

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Embodiment Construction

[0020] The system described herein employs an approach for more natural human performance using electronic horizon systems in lane following systems. The electronic horizon system uses points of latitude and longitude for current and upcoming roadways to provide guidance on the shape or shape of the driving lane ahead within an electronic horizon depth (eg, 1 km ahead) far beyond the range of the sensors used by the system . This advance information can be relayed to the vehicle controls (such as the steering controller) to allow control that more closely resembles that of a human driver.

[0021] Under conditions that are not limited to the following scenarios, the system or method allows the host vehicle to deviate from the centerline instead of following the centerline of the lane of travel or roadway: (A) "Comfort Curve Control Lateral Offset", where, during curve entry and curve During exit, a steering maneuver performed to conform to the curve minimizes lateral accelera...

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Abstract

A vehicle control system (10) for operating an automated vehicle in a fashion more conducive to comfort of an occupant (14) of the automated vehicle includes a sensor (20), an electronic-horizon database (32), vehicle-controls (16), and a controller (36). The sensor (20) is used to determine a centerline (22) of a travel-lane (24) traveled by a host-vehicle (12). The electronic-horizon database (32) indicates a shape (34) of the travel-lane (24) beyond where the sensor (20) is able to detect the travel-lane (24). The vehicle-controls (16) are operable to control motion of the host-vehicle (12). The controller (36) is configured to determine when the database (32) indicates that following the shape (34) of the travel-lane (24) beyond where the sensor (20) is able to detect the travel-lane (24) will make following the centerline (22) by the host-vehicle (12) uncomfortable (38) to an occupant (14) of the host-vehicle (12), and operate the vehicle- controls (16) to steer the host-vehicle (12) away from the centerline (22) when following the centerline (22) will make the occupant (14) uncomfortable (38).

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit under 35 U.S.C. §119(e) of U.S. Provisional Patent Application No. 62 / 296,642, filed February 18, 2016, the entire disclosure of which is incorporated herein by reference. technical field [0003] The present disclosure relates generally to autonomous vehicles and more particularly to systems and methods for modifying steering to create greater passenger comfort. Background technique [0004] It is known in automated driving systems to steer vehicles using systems that sense lane side markings or edges through camera vision systems, lidar systems, or fusion of cameras and radar. Conventional automated steering algorithms then determine the centerline of the lane between the sidelines and steer the vehicle substantially along that centerline. Sensing systems are not able to see or operate in front of where the vehicle is at any given moment and can only basically react to what it sen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/12B60W10/20B60W40/109
CPCB62D1/28B62D15/025B60W2520/125B60W30/12B60W40/08B60W2540/22
Inventor M·I·贾W·K·科西卡M·R·史密斯
Owner APTIV TECH LTD