Temperature control method and temperature controller

摘要

A temperature control method is used for controlling a temperature of an electric storage device 5 mounted on a vehicle 1 at the time when the vehicle 1 runs on a track 2. In the method, when a minimum voltage value Vmin corresponding to an internal resistance R of the electric storage device 5 reaches a first predetermined voltage value Vp near a minimum allowable voltage value VL of the electric storage device 5, the electric storage device 5 is controlled such that the electric storage device 5 has a temperature at which the minimum voltage value Vmin is maintained at the first predetermined voltage value Vp.

主权项

1. A temperature control method for controlling a temperature of an electric storage device mounted on a vehicle when the vehicle runs on a track,
wherein the electric storage has such a characteristic that an internal resistance lowers as the temperature rises and the internal resistance increases as deterioration of the electric storage device increases at the same temperature, the method comprising: when a minimum voltage value corresponding to an internal resistance of the electric storage device reaches a first predetermined voltage value near a minimum allowable voltage value of the electric storage device, a first step of controlling the electric storage device such that the electric storage device has a temperature at which the minimum voltage value of the electric storage device is maintained at the first predetermined voltage value; and when a maximum voltage value corresponding to the internal resistance of the electric storage device reaches a second predetermined voltage value near a maximum allowable voltage value of the electric storage device at the time of regeneration braking of the vehicle, a second step of controlling the electric storage device such that the electric storage device has a temperature at which the maximum voltage value of the electric storage device is maintained at the second predetermined voltage value, wherein the first step is to raise the temperature of the electric storage device with the deterioration of the electric storage device so as to maintain the minimum voltage value of the electric storage device at the first predetermined voltage value, wherein the first predetermined voltage value is set at a value of 110% to 120% of the minimum allowable voltage value, wherein the second step is to raise the temperature of the electric storage device with the deterioration of the electric storage device so as to maintain the maximum voltage value of the electric storage device at the second predetermined voltage value, and wherein the second predetermined voltage value is set at a value of 80% to 90% of the maximum allowable voltage value.