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Control system and method for improving the cold start capability of spark-ignition and direct-injection engines (SIDI engines)

机译:用于提高火花点火和直喷发动机(SIDI发动机)的冷启动能力的控制系统和方法

摘要

A control system includes an engine activation module and a fuel control module. The engine activation module determines whether predetermined operating conditions of a spark ignition and direct injection (SIDI) engine are met and activates an engine preparation mode when the predetermined operating conditions are met. The fuel control module controls a fuel injector to deliver a preparation pulse to a cylinder of the SIDI engine when the engine preparation mode is activated. The fuel injector delivers the preparation pulse by opening for a pulse width to inject fuel directly into the cylinder when the SIDI engine is stopped.
机译:控制系统包括发动机启动模块和燃料控制模块。发动机激活模块确定是否满足火花点火和直接喷射(SIDI)发动机的预定工作条件,并在满足预定工作条件时激活发动机准备模式。当发动机准备模式被激活时,燃料控制模块控制燃料喷射器以将准备脉冲传递至SIDI发动机的气缸。燃油喷射器通过打开一个脉冲宽度来传递准备脉冲,以便在SIDI发动机停止运行时将燃油直接喷射到气缸中。

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