pretravel

The oil spray signal Pump is measured by pressure sensor, the displacement of the pump is measured by orthoscopic displacement sensor directly The precision of the motor pretravel measurement is assured by defining the measurement to be the priority interrupt of the highest degree in the software.

为保证发动机预行程测量精度，在软件中定义测量采样中断为最高优先级别，以使系统测量中断响应速度快，采样位移信号及时。

The fuel injection system for a diesel engine, model 6110, was matched with an electronically controlled variable pre stroke pump and the electronic control system was calibrated to match the pump.

可变预行程泵电控系统具有结构简单 ,对原机改动小 ,实用性强的特点 ,研究表明可变预行程泵电控系统有较好的综合性能 ,应用它可为直喷式柴油机性能的改善提供潜