US 11,232,705 B2Granted

Mitigation of traffic oscillation on roadway

AssigneeToyota Jidosha Kabushiki Kaisha

InventorsHao Yang, Kentaro Oguchi

Life of this patent

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Abstract

In an example, a method determines a first controllable vehicle traveling along a mitigation road segment of a roadway and determines a control lane in the mitigation road segment. The control lane includes the first controllable vehicle and is impedible by the first controllable vehicle. The method determines a first open lane in the mitigation road segment and applies a target mitigation speed to the first controllable vehicle in the control lane. The first open lane is adjacent to the control lane in the mitigation road segment and the target mitigation speed is based on a traffic state of the first open lane. The target mitigation speed adjusts a traffic stream that flows through the first open lane to mitigate traffic congestion located downstream of the mitigation road segment.

Claims31

Dependent claims

A method comprising:

determining a first controllable vehicle traveling along a mitigation road segment of a roadway;
determining a control lane in the mitigation road segment, the control lane including the first controllable vehicle and being impedible by the first controllable vehicle;
determining a first open lane in the mitigation road segment, the first open lane being adjacent to the control lane in the mitigation road segment;
and
autonomously controlling the first controllable vehicle including sending an electronic signal to autonomously controllable hardware causing the autonomously controllable hardware to apply a target mitigation speed to the first controllable vehicle in the control lane, the target mitigation speed being based on a traffic state of the first open lane, the target mitigation speed adjusting a traffic stream that flows through the first open lane to mitigate traffic congestion located downstream of the mitigation road segment.

2 more elements

A system comprising:

one or more processors;
and
one or more memories storing instructions that, when executed by the one or more processors, cause the system to:
determine a first controllable vehicle traveling along a mitigation road segment of a roadway;
determine a control lane in the mitigation road segment, the control lane including the first controllable vehicle and being impedible by the first controllable vehicle;
determine a first open lane in the mitigation road segment, the first open lane being adjacent to the control lane in the mitigation road segment;
and
autonomously control the first controllable vehicle including sending an electronic signal to autonomously controllable hardware causing the autonomously controllable hardware to apply a target mitigation speed to the first controllable vehicle in the control lane, the target mitigation speed being based on a traffic state of the first open lane, the target mitigation speed adjusting a traffic stream that flows through the first open lane to mitigate traffic congestion located downstream of the mitigation road segment.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/202,095Filed 28 Nov 2018
Published: US 2020/0168084 A128 May 2020
Granted: 25 Jan 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

G08G 1/0145
For specific applications: for active traffic flow control
G08G 1/08
Controlling traffic signals: according to detected number or speed of vehicles
B60W 30/18
Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of…:…
G05D 1/0088
Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots: characterized by the…