| 摘要 |
A method to control a relief valve of a diesel common-rail system is disclosed. To achieve this, the present invention comprises: a key checking stage to check a key-off of a vehicle; an engine checking stage to check a stoppage of an engine; and a maintenance step of maintaining operation of a relief valve by maintaining a relay of a common rail controlling part to ON even after key-off of the vehicle. Moreover, the present invention comprises: a vehicle speed checking stage to check whether a vehicle speed is in a stoppage state until the maintenance stage; and the operation of the relief valve is maintained by maintaining the relay of the common rail controlling part ON until the engine stops in the maintenance stage. |
