Circuit arrangement for operating injection valves in four-cylinder engine, has booster capacitor formed for exchanging electrical energy with coils of injection valves, where capacitor is fed with battery voltage

摘要

The arrangement (2) has a booster capacitor (4) formed for exchanging electrical energy with coils (26) of injection valves. The capacitor is fed with battery voltage (7) of a battery (6). The arrangement is formed in such a manner that inverse current for depletion of a remanence in a magnetic circuit of the injection valves is provided for the coils of the injection valves at completion of an injection process for quick closing of the injection valves. The capacitor is formed for converting a booster phase of one of the injection valves to provide the electrical energy to the coils. Independent claims are also included for the following: (1) a method for operating a number of injection valves (2) computer program comprising a set of instructions for performing a method for operating a number of injection valves (3) a computer program product comprising a set of instructions for performing a method for operating a number of injection valves.