Brake system

A brake system that is to be provided in a vehicle including (i) a right-side wheel and a left-side wheel disposed to be spaced apart from each other in a width direction of the vehicle and (ii) a front wheel and a rear wheel disposed to be spaced apart from the right-side and left-side wheels in a longitudinal direction of the vehicle and located between the right-side and left-side wheels in the width direction, said brake system including at least two brake lines independent from each other, said brake system comprising:

• brakes provided for the right-side wheel, the left-side wheel, the front wheel and the rear wheel, and configured to restrain rotations of the respective wheels by activations of brake actuators of said brakes;
• and
• at least two energy sources independent from each other and configured to supply energy to said brake actuators;
• wherein one of said at least two brake lines serves as a first brake line, and includes (a) a first energy source as one of said at least two energy sources and (b) one of said brake actuators provided for the front wheel and activatable by the energy supplied from said first energy source,
• and wherein one of said at least two brake lines serves as a second brake line that is other than said first brake line, and includes (c) a second energy source as one of said at least two energy sources and (d) three of said brake actuators provided for the respective right-side, left-side and rear wheels and activatable by the energy supplied from said second energy source.