| 摘要 |
<p>Gas analyzing techniques for monitoring the amount of oxygen in the exhaust of motor vehicles. An oxygen sensor (10) produces a sensor signal having a sensor value proportional to the partial pressure of the oxygen produced by the motor vehicle. A summer circuit (17) generates a resulting signal proportional to the sum of the sensor value, another value produced by a differentiator (13) proportional to the first derivative of the sensor value and a third value produced by another differentiator (15) proportional to the second derivative of the sensor value. The resulting signal can be used to predict the final sensor value at a point in time earlier than would be otherwise possible.</p> |
