| 主权项 |
1. An electric brake device comprising:
an electric motor; a braking force application mechanism configured to apply a braking force on a vehicle wheel in dependence on the output of the electric motor; a lock mechanism configured to assume one of a locked condition, in which the braking force applied by the braking force application mechanism is prevented from being relieved, and an unlocked condition, in which the braking force is permitted to be relieved; a temperature sensor configured to measure an ambient temperature of a vehicle, in which the electric brake device is provided, or a temperature of the electric brake device; and a freezing preventive power supply unit configured to initiate supply of an electric power to the electric motor or a drive source of the lock mechanism in the event that while the braking force application mechanism applies the braking force and the lock mechanism is held in the locked condition without releasing the braking force application mechanism, the temperature sensor detects a first preset temperature T1 of the electric brake device immediately before freezing, wherein the freezing preventive power supply unit interrupts the supply of the electric power to the electric motor or the drive source of the lock mechanism when the temperature detected by the temperature sensor exceeds a second preset temperature T2 that is higher than the first preset temperature T1, the exceeding being caused by the supply of the electric power to the electric motor or the drive source of the lock mechanism. |
