喷油提前较多的情况下，喷油定时对滞燃期几乎没有影响。
Injection timing has small effect on ignition delay in the case of earlier injection.
在发动机燃用稀薄混合气时，喷油定时对排放和经济性的影响较为明显。
Compared with stoichiometric mixture operation, fuel economy and emissions are remarkably influenced by injection timing when lean mixture is applied.
试验结果表明，两个喷油器的喷油量和喷油定时对油耗和排放都有明显的影响。
The experiment results show that the injection pulse width and timing of both injectors have obvious effect on fuel consumption and emission.
喷油量和喷油定时通过查MAP图计算来实现，共轨压力则主要采用闭环PID控制。
The injection quantity and the injection timing are controlled on the basis of the MAP, and the rail pressure is mainly controlled by using PID of closed loop.
喷油量和喷油定时通过查MAP图计算来实现，共轨压力则主要采用闭环PID控制。
The injection quantity and the injection timing are controlled on the basis of the MAP, and the rail pressure is mainly controlled by using PID of closed loop.
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