Hydraulic brake system for industrial vehicle

A hydraulic brake system for an industrial vehicle, the hydraulic brake system comprising:

• a brake device configured to brake a wheel using hydraulic pressure;
• a master cylinder having a brake pedal, and configured to discharge hydraulic fluid in accordance with a depressed amount of the brake pedal to output the hydraulic pressure;
• and
• a master cylinder fluid passage connecting the master cylinder and the brake device, wherein
• the hydraulic brake system includes:
• a control valve disposed in the master cylinder fluid passage;
• an actuator that outputs the hydraulic pressure;
• an actuator fluid passage extending from the actuator to the master cylinder fluid passage through the control valve;
• a first solenoid valve provided in the control valve and configured to open and close the master cylinder fluid passage;
• a second solenoid valve provided in the control valve and configured to open and close the actuator fluid passage;
• and
• a controller configured to control the first solenoid valve and the second solenoid valve,
• when braking is performed during manual operation, the controller controls the first solenoid valve to open the master cylinder fluid passage, and the second solenoid valve to close the actuator fluid passage, and
• when braking is performed during automated operation, the controller controls the second solenoid valve to open the actuator fluid passage, and the first solenoid valve to close the master cylinder fluid passage.