| 发明名称 | Method for detecting the operational readiness of a jump lambda sensor | ||
| 摘要 | In a method for detecting the operational readiness of a jump lambda sensor associated with an internal combustion engine the internal resistance of the sensor is determined as the criterion for the operational readiness of the sensor. The internal resistance is measured by applying a pulsed current to the sensor, the frequency of the current being selected as a function of the state of the sensor (1, 2, 3, 4). | ||
| 申请公布号 | US9222852(B2) | 申请公布日期 | 2015.12.29 |
| 申请号 | US201113995020 | 申请日期 | 2011.11.23 |
| 申请人 | Robert Bosch GmbH | 发明人 | Fey Michael |
| 分类号 | G01M15/10;F02D41/14 | 主分类号 | G01M15/10 |
| 代理机构 | Michael Best & Friedrich LLP | 代理人 | Michael Best & Friedrich LLP |
| 主权项 | 1. A method for detecting operational readiness of a jump lambda sensor associated with an internal combustion engine, characterized in that internal resistance of the jump lambda sensor is determined as the criterion for operational readiness of the jump lambda sensor, the internal resistance being measured by applying a pulsed current to the jump lambda sensor, wherein the frequency of the pulsed current is adapted as a function of the measured internal resistance of the jump lambda sensor, and wherein the attainment of operational readiness of the jump lambda sensor is inferred when the measured internal resistance falls below a predefined threshold. | ||
| 地址 | Stuttgart DE | ||