Patent ID: 9168845
Filing Date: 2015-10-27
Classification: B60L,Y02T

Abstract:
1. A method of controlling an operation mode of a fuel cell in a fuel cell vehicle, comprising: determining by a controller a first torque and a first state of charge (SOC) corresponding to a stop mode torque value and a stop mode SOC value, and determining by a controller a second torque and a second SOC corresponding to a start mode torque value and a start more SOC value, wherein the second torque is higher than the first torque and the second SOC is lower than the first SOC; when a driver-demanded torque is lower than the first torque, and a current SOC in a battery is higher than the first SOC, converting by the controller the operation mode of the fuel cell to a stop mode; and when the driver-demanded torque is higher than the second torque, or the current SOC in the battery is lower than the second SOC, converting by the controller the operation mode of the fuel cell to a start mode, wherein the first torque is increased to more quickly convert the operation mode to the stop mode or the second torque is reduced to more quickly convert the operation mode to the start mode according to driving state of the fuel cell vehicle.