| 发明名称 |
Method for determining a value of a current |
| 摘要 |
A method for determining a value of a current, which is required for changing a switching state of a pressure control valve of a fuel delivery system, in which the current flowing through the pressure control valve is varied from a starting value up to a target value, and a time curve of the current is analyzed, the value required for changing the switching state being reached when the curve of the current has a change in slope, this change being detected via a first derivation over time of the current. |
| 申请公布号 |
US9638377(B2) |
申请公布日期 |
2017.05.02 |
| 申请号 |
US201214345281 |
申请日期 |
2012.08.06 |
| 申请人 |
ROBERT BOSCH GMBH |
发明人 |
Sommerer Andreas;Chatelain Sebastien;Combe Raphael;Viereck Markus |
| 分类号 |
F17D3/01;F02D41/38;F02D41/24;F02D41/20 |
主分类号 |
F17D3/01 |
| 代理机构 |
|
代理人 |
Messina Gerard |
| 主权项 |
1. A method for determining a value of a current, which is required for changing a switching state of a pressure control valve of a fuel delivery system, the method comprising:
varying the current flowing through the pressure control valve from a starting value up to a target value; and analyzing a time curve of the current, which time curve results from the varying, the analyzing including detecting for which value of the current the curve undergoes a change in slope and determining this current value as the value required for changing the switching state; wherein the change in slope is detected based on a first derivation over time of the current. |
| 地址 |
Stuttgart DE |
