OBD compliant rationality check system for adaptive cruise control
US8521377B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2012 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | May 14, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W50/0205
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system includes a vehicle speed module that determines a speed of a vehicle. An engine control module receives a first target speed signal and a torque request signal from an adaptive cruise control (ACC) module. The ACC module is separate from the engine control module. A first comparison module compares the first target speed signal to the speed of the vehicle to generate a first assessment signal. A first target speed module sets a second target speed signal equal to one of the first target speed signal and a predetermined value based on the first assessment signal. The engine control module controls an engine to provide an engine output torque based on at least one of the torque request signal and the second target speed signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.