| 发明名称 | Method and system for engine control | ||
| 摘要 | Methods and systems are provided for fuel systems including a gaseous fuel. Fuel rail over-pressure may be addressed by temporarily closing a fuel tank valve of the gaseous fuel and initiating diagnostics routines to determine if a pressure regulator is degraded. If the pressure regulator is degraded, one or more fuel system components may be adjusted to enable fuel rail pressure control. | ||
| 申请公布号 | US9528454(B2) | 申请公布日期 | 2016.12.27 |
| 申请号 | US201414576773 | 申请日期 | 2014.12.19 |
| 申请人 | Ford Global Technologies, LLC | 发明人 | Pursifull Ross Dykstra |
| 分类号 | F02D41/00;F02M21/02;F02D19/02;F02D19/06;F02D41/22;F02D41/38;F02M63/02 | 主分类号 | F02D41/00 |
| 代理机构 | Alleman Hall McCoy Russell & Tuttle LLP | 代理人 | Voutyras Julia;Alleman Hall McCoy Russell & Tuttle LLP |
| 主权项 | 1. A method of operating a fuel system to selectively deliver a gaseous fuel to an engine, comprising: during conditions including gaseous fuel not being delivered to the engine, sequentially opening a tank valve and a fuel rail valve of the fuel system;indicating degradation of a pressure regulator of the fuel system based on a change in fuel rail pressure during the sequential opening; and delivering a liquid fuel to the engine. | ||
| 地址 | Dearborn MI US | ||