Method and system for wear estimation

A method for estimating wear in a valve train of an internal combustion engine, comprising:

• receiving sensor information indicative of an operation of the internal combustion engine over a first period of time;
• determining, based on at least the sensor information for the first period of time, a first incremental increase in an amount of wear of at least one component of the valve train;
• receiving sensor information indicative of the operation of the internal combustion engine over a second period of time;
• determining, based on at least the sensor information for the second period of time, a second incremental increase in the amount of wear;
• determining, based on the first incremental increase and the second incremental increase, an updated amount of wear;
• and
• outputting a notification indicative of the updated amount of wear.

A wear estimation system for an internal combustion engine, the system comprising:

• a fuel injector configured to inject fuel toward a combustion chamber;
• a sensor configured to output information indicative of an amount of fuel supplied to the internal combustion engine;
• at least one valve train component;
• and
• a controller configured to:
• control an operation of the fuel injector by outputting commands to the fuel injector;
• receive the information output from the sensor;
• determine an incremental increase in an amount of wear of the at least one valve train component based on at least the sensor information;
• update the amount of wear based on the incremental increase;
• and
• output a notification indicative of the updated amount of wear.