发明名称 |
Method for determining a rotational speed of a driveshaft of an internal combustion engine |
摘要 |
A method determines a rotational speed of a driveshaft of an internal combustion engine. The rotating driveshaft assumes different rotary positions at different times. An average gradient of rotary speed for the driveshaft is determined at at least two rotary positions. Subsequently, an average rotational speed for the driveshaft is obtained from a past average gradient of rotary speed at at least one later point in time. |
申请公布号 |
US9068905(B2) |
申请公布日期 |
2015.06.30 |
申请号 |
US201113581264 |
申请日期 |
2011.02.23 |
申请人 |
Robert Bosch GmbH |
发明人 |
Cwik Matthias;Roessle Markus;Mauritz Ewald;Tumback Stefan |
分类号 |
G01M15/04;G01M13/02;F02N11/08;G01P3/64 |
主分类号 |
G01M15/04 |
代理机构 |
Michael Best & Friedrich LLP |
代理人 |
Michael Best & Friedrich LLP |
主权项 |
1. A method for determining a rotational speed of a driveshaft of an internal combustion engine, wherein the rotating driveshaft assumes various rotary positions at different points in time, the method comprising:
determining an average gradient of rotary speed for the driveshaft from at least two rotary positions; and subsequently obtaining an average rotational speed for the driveshaft from the past average gradient of rotary speed at at least one later point in time. |
地址 |
Stuttgart DE |