发明名称 |
Method and device for controlling an internal combustion engine |
摘要 |
A method is described for monitoring a camshaft adjustment of an internal combustion engine in a first operating mode, in which, depending on a time characteristic of an actual value of the angular position of the camshaft adjustment and a time characteristic of a first setpoint value of the angular position of the camshaft adjustment, a decision is made that there are errors in the camshaft adjustment, the decision also depending on a time characteristic of a second setpoint value of the angular position of the camshaft adjustment, the first setpoint value and the second setpoint value each being ascertained at the same operating point of the internal combustion engine, and the first setpoint value for operating the internal combustion engine being ascertained in the first operating mode and the second setpoint value for operating the internal combustion engine being ascertained in a second operating mode. |
申请公布号 |
US8965661(B2) |
申请公布日期 |
2015.02.24 |
申请号 |
US201113306117 |
申请日期 |
2011.11.29 |
申请人 |
Robert Bosch GmbH |
发明人 |
Reuschenbach Lutz;Krannich Oliver;Lassl Andreas |
分类号 |
F02D13/00;F02D41/00;F01L1/34;F02D41/02;F02D41/22;F02D41/06;G01M15/00 |
主分类号 |
F02D13/00 |
代理机构 |
Kenyon & Kenyon LLP |
代理人 |
Kenyon & Kenyon LLP |
主权项 |
1. A method for monitoring a camshaft adjustment of an internal combustion engine in a first operating mode, the method comprising:
making a decision, depending on a time characteristic of an actual value of the angular position of the camshaft adjustment and a time characteristic of a first setpoint value of the angular position of the camshaft adjustment, that there are errors in the camshaft adjustment, wherein the decision as to whether there is an error in the camshaft adjustment also depends on a time characteristic of a second setpoint value of the angular position of the camshaft adjustment; and ascertaining the first setpoint value and the second setpoint value at the same operating point of the internal combustion engine, wherein the first setpoint value is ascertained for operating the internal combustion engine in the first operating mode, and wherein the second setpoint value is ascertained for operating the internal combustion engine in a second operating mode. |
地址 |
Stuttgart DE |