Patent ID: 7235897

Claim:
An electric power-supply unit for automobiles comprising: an electrically driven brake device for generating braking forces by being electrically driven; an electric generator for generating an electric power and a braking force accompanied with the electric power generation; an electric power storage device for storing the electric power generated by the electric generator; a first electric power supply line electrically connecting the electric generator and the electric power storage device; a first connecting device, provided on the first electric power supply line, for connecting and disconnecting electric connection between the electric power generator and the electric power storage device through the first electric power supply line; a second electric power supply line electrically connecting the electrically driven brake device to the first electric power supply line at a first location between the electric power generator and the first connecting device and at a second location between the electric power storage device and the first connecting device; a second connecting device, provided on the second electric power supply line between the second location and the electrically driven brake device, for connecting and disconnecting electric connection between the first electric power supply line and the electrically driven brake device through the second electric power supply line; and a third connecting device, provided on the second electric power supply line between the first location and the electrically driven brake device, for connecting and disconnecting electric connection between the first electric power supply line and the electrically driven brake device through the second electric power supply line; and wherein said first, second and third connecting devices perform electrical connection and disconnection of respective electric power supply lines independently from one another.