Internal combustion engine start control apparatus and non-transitory recording medium

An internal combustion engine start control apparatus configured to control start of an internal combustion engine in a vehicle, the vehicle comprising a drive motor and the internal combustion engine as driving force sources, the internal combustion engine start control apparatus comprising:

• one or more processors;
• and
• one or more memories communicably coupled to the one or more processors, wherein
• the one or more processors are configured to execute
• an engine start and stop determination process of generating a stop request for the internal combustion engine when an accelerator position based on an operation by a driver who drives the vehicle is less than a predetermined position threshold, and generating a start request for the internal combustion engine when the accelerator position becomes equal to or greater than the predetermined position threshold,
• a learning process of learning an accelerator operation characteristic of the driver exhibited when the vehicle starts or accelerates, and
• an internal combustion engine start process of executing, based on a result of learning the accelerator operation characteristic, a first start process of starting the internal combustion engine when the accelerator position becomes equal to or greater than the predetermined position threshold, and a second start process of starting the internal combustion engine after a state in which the accelerator position is equal to or greater than the predetermined position threshold continues for a predetermined time period.