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Autonomous ride dynamics comfort controller

A dynamic and comfort technology, applied in non-electric variable control, vehicle position/route/altitude control, control devices, etc., to solve problems such as passenger discomfort

Active Publication Date: 2019-11-22
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Driving over road irregularities, such as potholes, may cause some degree of discomfort to occupants of the vehicle

Method used

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  • Autonomous ride dynamics comfort controller
  • Autonomous ride dynamics comfort controller
  • Autonomous ride dynamics comfort controller

Examples

Experimental program
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Embodiment Construction

[0035] The detailed description is merely exemplary in nature and not intended to limit application and uses. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or detailed description. As used herein, the term "module" refers to any hardware, software, firmware, electronic control component, processing logic, and / or processor device, individually or in any combination, including, but not limited to: application specific integrated circuits (ASICs), field Programmable gate arrays (FPGAs), electronic circuits, processors (shared, dedicated, or grouped) and memory executing one or more software or firmware programs, combinational logic circuits, and / or other suitable components that provide the described functionality.

[0036] Embodiments of the disclosure may be described herein in terms of functional and / or logical block components and individual processing steps. It should b...

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PUM

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Abstract

A processor-implemented path planning method in a vehicle is disclosed. The method includes retrieving road surface information along a planned path for the vehicle; constructing, by the processor, amodel of the road surface along the planned path; identifying, by the processor, a road irregularity in the road surface for the planned path; classifying, by the processor, the road irregularity; projecting the location of vehicle tire patches on the model of the road surface; predicting, by the processor, vehicle sprung-mass dynamics as a function of time for the vehicle along the planned path;calculating a plurality of alternative path trajectories within the constraints of the road boundaries for avoiding the road irregularity; choosing an alternative path trajectory out of the pluralityof alternative path trajectories that reduces the sprung-mass dynamics for the vehicle to provide a more comfortable ride; and updating the planned path with the chosen alternative path trajectory.

Description

technical field [0001] The present disclosure relates generally to autonomous vehicles, and more particularly to systems and methods in autonomous vehicles for adjusting vehicle performance to reduce the impact of road anomalies on occupant comfort. Background technique [0002] Autonomous vehicles are equipped with sensors that can sense road conditions. For example, a camera or lidar sensor in an autonomous vehicle can sense road irregularities, such as potholes in the vehicle's planned path. Driving over road irregularities, such as potholes, may cause a certain degree of discomfort to occupants of the vehicle. Many modern vehicles are equipped with actuators that can be engaged to adjust the performance of the vehicle. For example, actuators for speed, braking and / or steering control may be controlled to adjust vehicle performance. [0003] Accordingly, it would be desirable to provide systems and methods for automatically adjusting the response of an autonomous vehic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W40/06B60W50/00
CPCB60W40/06B60W50/0098B60W2050/0043B60W30/025B60W2050/0031B60W60/0013B60W2552/35G05D1/0088G05D1/0214
Inventor G·P·波托里尼J·F·兹泽巴R·J·马蒂厄
Owner GM GLOBAL TECH OPERATIONS LLC