Correction of the effect of pulses in a gas flow, especially the intake flow into a motor vehicle multi-cylinder combustion engine, by multiple filtering of input signals prior to adding in an adder circuit
摘要
<p>Method for pulse correction of a flow measurement unit that measures a pulsing gas flow to a combustion engine has the following steps: a raw signal is output from the adder of a compensation circuit; the raw signal is fed to a multiple frequency filter (12) with at least high-pass, low pass and band filters; the filtered signal is written to addresses of a correction field (16) and; the values stored in the addresses are added by the adder to the raw signal. An independent claim is included for a system for implementing the inventive method.</p>
