Method and system for autonomous vehicle speed following
US10534364B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 17, 2016 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | May 21, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2720/106
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In one embodiment, an autonomous driving vehicle (ADV) speed following system determines how much and when to apply a throttle or a brake control of an ADV to maneuver the ADV around, or to avoid, obstacles of a planned route. The speed following system calculates a first torque force to accelerate the ADV, a second torque force to counteract frictional forces and wind resistances to maintain a reference speed, and a third torque force to minimize an initial difference and external disturbances thereafter between predefined target speed and actual speed of the ADV over a planned route. The speed following system determines a throttle-brake torque force based on the first, second, and third torque forces and utilizes the throttle-brake torque force to control a subsequent speed of the ADV.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.