Brake device and automatic driving vehicle using the same

An automatic driving vehicle, comprising:

• a body having a plurality of seats and a steering wheel;
• a central control unit disposed on the body;
• and
• a brake device electrically connected to the central control unit, the brake device comprising an electrically controlled brake assembly that is disposed under the plurality of seats, a mechanically controlled brake assembly and a shaft, wherein the electrically controlled brake assembly comprises a main body and a brake control link, and the mechanically controlled brake assembly is connected to the brake control link by the shaft,
• the mechanically controlled brake assembly comprising:
• a pedal located under the steering wheel;
• an elbow having a first end, a second end and a fulcrum, wherein the first end is connected to the pedal, the fulcrum is located between the first end and the second end and is close to the second end;
• a brake link group connected between the second end of the elbow and the brake control link by the shaft;
• and
• a brake pump having an adjustable rod, wherein one link of the brake link group is connected to the adjustable rod of the brake pump
• wherein the main body comprises:
• a fixing base;
• an electrically controlled motor disposed on the fixing base;
• a bearing housing disposed on a wing of the fixing base;
• a first axis rod connected between the electrically controlled motor and the bearing housing;
• a first gear installed on the first axis rod and located between the electrically controlled motor and the bearing housing;
• a second axis rod, wherein two ends of the second axis rod are fixed on opposite first and second side walls of the fixing base;
• a second gear installed on the second axis rod and engaged with the first gear, wherein a surface of the second gear has a protruding portion, the brake control link has a guide rail portion, and the protruding portion is located in the guide rail portion;
• and
• a bearing installed on the second axis rod close to the second gear.