Charging control system

Abstract

A charging control system includes: a rechargeable battery; a battery temperature control device; and a controller. The controller includes processing circuitry configured to: acquire a scheduled travel plan of a vehicle; create a charging plan in a case where charging is included in the plan; predict a battery temperature in the plan based on a cooling capacity of the battery temperature control device; and perform a power saving control for restricting a charging output of an external power supply when the temperature of the battery exceeds a predetermined temperature during the charging. The processing circuitry is configured to create, when at least two times of charging are included in the plan and it is predicted that the charging output is restricted by the power saving control in a second and subsequent charging, the charging plan such that a total time required for the charging included in the plan is shortened.

What is claimed is: 
     
         1 . A charging control system comprising:
 a battery rechargeable with electric power from an external power supply;   a battery temperature control device that adjusts a temperature of the battery; and   a controller that controls the battery and the battery temperature control device, wherein   the controller includes processing circuitry configured to:
 acquire a scheduled travel plan of a vehicle; 
 create a charging plan in a case where charging is included in the scheduled travel plan; 
 predict a battery temperature in the scheduled travel plan based on a cooling capacity of the battery temperature control device; and 
 perform a power saving control for restricting a charging output of the external power supply when the temperature of the battery exceeds a predetermined temperature during the charging, and wherein 
   the processing circuitry is configured to create,   when at least two times of charging are included in the scheduled travel plan and it is predicted that the charging output is restricted by the power saving control in a second and subsequent charging,   the charging plan such that a total time required for the charging included in the scheduled travel plan is shortened.   
     
     
         2 . The charging control system according to  claim 1 , wherein
 the processing circuitry is configured to   calculate a total amount of heat of the battery in all the charging included in the scheduled travel plan, and   create the charging plan based on the total amount of heat of the battery.   
     
     
         3 . The charging control system according to  claim 1 , wherein
 the processing circuitry is configured to   create the charging plan such that the total time required for the charging included in the scheduled travel plan is shortened and a difference in charging time of each charging is reduced.   
     
     
         4 . The charging control system according to  claim 1 , wherein
 the processing circuitry is configured to   create the charging plan such that the charging is performed with a charging output smaller than a charging output at which the battery can be charged earliest in a charging system in which a first charging is performed.   
     
     
         5 . The charging control system according to  claim 1 , wherein
 the processing circuitry is configured to   predict the battery temperature based on the cooling capacity of the battery temperature control device and weather information.