| 摘要 |
In an internal combustion engine, the operation of at least a pair of fuel injectors is switched from independent energization per engine cycle to simultaneous energization when the amplitude of a speed signal is below the amplitude of a reference signal at the initiation of a timing pulse. The amplitude of the speed signal increases over the duration of a first portion of each engine cycle so that the amplitude of the speed signal is inversely related to the speed of the engine. The timing pulse is initiated at the expiration of a second portion of each engine cycle terminating within the first portion. The amplitude of the reference signal is substantially constant at a voltage level corresponding to an engine speed at which the maximum time period available for independent energization of each of the fuel injectors per engine cycle approaches the desired energization time period for each of the fue injectors per engine cycle.
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