| 摘要 |
PROBLEM TO BE SOLVED: To maintain an assist function of brake force even in a case that the main power supply falls into failure steeply.SOLUTION: An ECU 120 is used at an electric booster 100 of a motor 110 drive. The ECU 120 comprises a first/second switches 140, 150 which can open/close a first/second power lines 142, 152 for supplying electric power from a battery 200/DLC 300 to the motor 110. The ECU 120 comprises a μ-COM 130 which controls opening and closing of the first and the second switches 140, 150 based on a voltage value etc. supplied from the battery 200 through a third power supply line 162. The ECU 120 comprises a first diode element 160 which is provided in the third power supply line 162 with the cathode facing the μ-COM 130 side and second diode elements 170-1, 170-2 which are provided in a fourth power supply line 172 for supplying electric power from the DLC 300 to the μ-COM 130 with the cathodes facing the μ-COM 130 side. |
