Diesel engine, diesel engine manufacturing method, and diesel engine injection-amount correction system

A diesel engine manufacturing method, which is a method of manufacturing a diesel engine including an injector that uses a solenoid to directly drive a needle valve and inject a fuel and an injector control device that controls the driving by the injector, the diesel engine manufacturing method comprising:

• a signal inputting step of inputting a control signal to the injector control device;
• a voltage measurement step of measuring a voltage applied to a terminal of the injector control device connected to a load when a current starts to flow in the load connected to the injector control device due to the signal inputting step;
• a correction value setting step of setting a correction value related to an injection amount of the fuel injected from the injector according to the voltage measured by the voltage measurement step;
• and
• a correction value writing step of causing a storage unit of the injector control device to store the correction value set by the correction value setting step.

A diesel engine injection-amount correction system comprising:

• an injector control device that controls driving by an injector that uses a solenoid to directly drive a needle valve and inject a fuel;
• a control signal generation device that generates a control signal which controls the injector control device and inputs the control signal to the injector control device;
• a load connected to the injector control device;
• a voltage measurement device that measures a voltage applied to a terminal of the injector control device connected to the load when a current starts to flow in the load due to the control signal;
• a correction value setting device that sets a correction value related to an injection amount of the fuel injected from the injector according to the voltage measured by the voltage measurement device;
• and
• a correction value writing device that causes a storage unit of the injector control device to store the correction value set by the correction value setting device wherein
• the control signal generation device inputs the control signal to the injector control device in a production process of a diesel engine in which the injector is to be mounted,
• the voltage measurement device measures the voltage applied to the terminal of the injector control device in the production process of the diesel engine,
• the correction value setting device sets the correction value in the production process of the diesel engine, and
• the correction value writing device stores the correction value in the storage unit in the production process of the diesel engine.