Heating apparatus for vehicle, method of controlling heating apparatus for vehicle, and storage medium

A method of controlling a heating apparatus for a vehicle, the method comprising:

• determining a heater of an air heating unit configured to heat air conditioning air to be sent into a vehicle cabin is on;
• determining whether a heater of a contact heating unit configured to heat a member that is in contact with a body of an occupant in the vehicle cabin is on or off;
• decreasing an electric power that is supplied to the heater of the air heating unit when the heater of the contact heating unit is on to reduce an electric power consumption from one or more batteries as compared to an electric power that is supplied to the heater of the air heating unit when the heater of the contact heating unit is off;
• decreasing a target water temperature of the air heating unit when the contact heating unit is on;
• decreasing a total electric power of the electric power that is supplied to the heater of the contact heating unit and the electric power that is supplied to the heater of the air heating unit when the heater of the contact heating unit is on as compared to the electric power that is supplied to the heater of the air heating unit when the heater of the contact heating unit is off;
• and
• decreasing the electric power that is supplied to the heater of the air heating unit as an outside air temperature outside the vehicle increases.

A non-transitory storage medium storing instructions that are executable by one or more processors and that cause the one or more processors to perform functions comprising:

• determining a heater of an air heating unit configured to heat air conditioning air to be sent into a vehicle cabin is on;
• determining whether a heater of a contact heating unit configured to heat a member that is in contact with a body of an occupant in the vehicle cabin is on or off;
• decreasing an electric power that is supplied to the heater of the air heating unit when the heater of the contact heating unit is on to reduce an electric power consumption from one or more batteries as compared to an electric power that is supplied to the heater of the air heating unit when the heater of the contact heating unit is off;
• decreasing a target water temperature of the air heating unit when the contact heating unit is on;
• decreasing a total electric power of the electric power that is supplied to the heater of the contact heating unit and the electric power that is supplied to the heater of the air heating unit when the heater of the contact heating unit is on as compared to the electric power that is supplied to the heater of the air heating unit when the heater of the contact heating unit is off;
• and
• decreasing the electric power that is supplied to the heater of the air heating unit as an outside air temperature outside the vehicle increases.