Traffic signal understandings and representation for prediction, planning, and control

US12080161B2 · kind B2 · utility

Assignees

• TOYOTA RESEARCH INSTITUTE, INC. · US
• TOYOTA JIDOSHA KABUSHIKI KAISHA · JP

Inventors

• Kuan-Hui Lee · San Jose, US
• Charles Christopher Ochoa · San Francisco, US
• Arjun Bhargava · San Francisco, US
• Chao Fang · Sunnyvale, US
• Kun-Hsin Chen · San Francisco, US

Key dates

• Filing date: Apr 28, 2022
• Grant date: Sep 3, 2024
• Expiry date: Aug 13, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G08G1/0141
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A method for vehicle prediction, planning, and control is described. The method includes separately encoding traffic state information at an intersection into corresponding traffic state latent spaces. The method also includes aggregating the corresponding traffic state latent spaces to form a generalized traffic geometry latent space. The method further includes interpreting the generalized traffic geometry latent space to form a traffic flow map including current and future vehicle trajectories. The method also includes decoding the generalized traffic geometry latent space to predict a vehicle behavior according to the traffic flow map based on the current and future vehicle trajectories.