Cruise-control system with fuel and throttle valve control
US5031715A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1989 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | Sep 27, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2710/0605
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a cruise-control system mounted on an automobile after a cruise-control mode has been established, a microcomputer prevents the electronic fuel-injection system of the automobile from cutting off the supply of fuel to the engine. This prevents the velocity of the automobile from surging when the automobile does down a hill. Another embodiment of a cruise-control system has an electronic fuel-injection system and an actuator that controls the opening of the throttle valve. When the opening decreases to a small opening slightly larger than the opening at which the fuel-injection system stops supplying fuel to the engine, the fuel-injection system maintains the valve at the small opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.