Patent ID: 9187009
Filing Date: 2015-11-17
Classification: B60L,Y02E,Y02T

Abstract:
1. An apparatus for controlling cooling of electronic components connected in series and parallel with a coolant loop in a fuel cell vehicle using a pump, comprising: a monitor configured to collect a measured temperature of the electronic components and a measured temperature of a coolant through a plurality of temperature sensors; and a controller configured to control a revolutions per minute (RPM) of the pump based on the measured temperatures and at least one of electronic component temperature maps, a coolant temperature map, and a temperature difference map representing temperature differences between the electronic components and the coolant, the controller controlling the RPM of the pump using over-temperature set information and over-temperature reset information of each temperature map, wherein, when at least one of a motor temperature, an inverter temperature, a high voltage (HV) DC-DC converter temperature, a low voltage (LV) DC-DC converter temperature, and the temperature differences between the electronic components and the coolant exceeds an over-temperature reference value, the controller determines that an electronic component corresponding to the temperature is in an over-temperature set state and applies a maximum value of pump RPM command values derived through the temperature maps as a final pump RPM command value.