Control strategy of high pressure pump unit applied to high pressure common rail multiple injection system

In order to meet the new requirements of multiple injections technology on high pressure pump, the control strategy based on high pressure pump of GD-1 electronic controlled diesel engine was designed and further tested on engine platform. The test results demonstrated that this control strategy achieved an effective control on the high-pressure pump, in which, not only the performance of high-pressure pump was improved, but also the reliability of fuel injection system was ensured. This control strategy can also provide a basis for common rail diesel engine to further improve the multiple injection control and emission.