Vehicle heat management control device and recording medium storing heat management control program
A heat management control device for a vehicle that includes an electric motor and a power supply section that includes a storage battery and that supplies electrical power to the electric motor. The heat management control device includes a charging device that charges the storage battery through a connection to an external power source, a heat exchanger that performs heat exchange of heat generated by the charging device during charging with fluid flowing in a specific transport path. The heat management control device includes a heat storage section that uses a chemical reaction partway along the specific transport path in order to recover heat from the fluid and that stores the recovered heat, and a fluid supply controller that, from immediately after a vehicle is started, releases heat stored by the heat storage section to the fluid, and selectively supplies the fluid to a predetermined plurality of warm-up targets.
1. A heat management control device for a vehicle, the heat management control device comprising: an electric motor configured to operate as a motive power source; a power supply section including a storage battery, the power supply section being configured to supply electrical power to the electric motor; a battery charger configured to charge the storage battery through a connection to an external power source; a heat exchanger configured to perform heat exchange of heat generated by the battery charger during charging with fluid flowing in a specific transport path; a chemical heat storage reactor configured to use a chemical reaction partway along the specific transport path in order to recover heat from the fluid and configured to store the recovered heat; a liquid pump configured to regulate a flow rate of the fluid along the specific transport path and regulate the flow rate of the fluid to a predetermined plurality of warm-up targets; and a warm-up control device configured to: determine a temperature of the storage battery during charging of the storage battery; in response to determining the temperature of the storage battery is greater than a predetermined temperature threshold value, control the specific transport path to perform heat exchange by the heat exchanger and store the recovered heat in the chemical heat storage reactor; and in response to determining the temperature of the storage battery is less than or equal to the predetermined temperature threshold value, from immediately after a vehicle is started, control the specific transport path to release the heat stored by the chemical heat storage reactor to the fluid, and selectively control the liquid pump to supply the fluid to the predetermined plurality of warm-up targets at the flow rate regulated by the liquid pump.
2. The vehicular heat management control device of claim 1 , wherein:
the plurality of warm-up targets include at least two or more of transmission oil, air for supplying into a vehicle cabin, an EGR cooler, or a storage battery; and
a warm-up path is provided to each of the plurality of warm-up targets so as to perform circulation at a periphery of each of the plurality of warm-up targets, the warm-up path being able to be placed in communication with, or to be closed off from, the specific transport path by switching a switching valve.
3. The vehicular heat management control device of claim 1 , wherein:
a temperature sensor is attached to each of the plurality of warm-up targets; and
the warm-up control device selects a warm-up target of the plurality of warm-up targets based on a detection result of the temperature sensors.
4. The vehicular heat management control device of claim 3 , wherein a temperature detected by each respective temperature sensor is compared to a preset vehicle fuel consumption improvement sensitivity map for each warm-up target of the plurality of warm-up targets in order to determine a priority order for the plurality of warm-up targets.
5. The vehicular heat management control device of claim 1 , wherein the plurality of warm-up targets include the storage battery, and the storage battery is configured as a highest priority warm-up target of the plurality of warm-up targets when the storage battery is at or below a preset warm-up target temperature.
6. A non-transitory computer readable recording medium storing a vehicular heat management control program that is executable by a computer in a vehicular heat management control device, the vehicular heat management control device including:
an electric motor configured to operate as a motive power source, a power supply section including a storage battery, the power supply section being configured to supply electrical power to the electric motor,
a battery charger configured to charge the storage battery through a connection to an external power source,
a heat exchanger configured to perform heat exchange of heat generated by the battery charger during charging with fluid flowing in a specific transport path,
a chemical heat storage reactor configured to use a chemical reaction partway along the specific transport path in order to recover heat from the fluid and configured to store the recovered heat, and
a liquid pump configured to regulate a flow rate of the fluid along the specific transport path and regulate the flow rate of the fluid to a predetermined plurality of warm-up targets,
the vehicular heat management control program causing the computer to perform processing, the processing comprising: determining a temperature of the storage battery during charging of the storage battery; in response to determining the temperature of the storage battery is greater than a predetermined temperature threshold value, controlling the specific transport path to perform heat exchange by the heat exchanger and store the recovered heat in the chemical heat storage reactor; and in response to determining the temperature of the storage battery is less than or equal to the predetermined temperature threshold value, from immediately after a vehicle is started, controlling the specific transport path to release the heat stored by the chemical heat storage reactor to the fluid, and to selectively control the liquid pump to supply the fluid to the predetermined plurality of warm-up targets at the flow rate regulated by the liquid pump.