Electric control hydraulic braking system

The invention discloses an electric control hydraulic braking system which comprises an oil tank, a first cylinder, a second cylinder, a driving piece, a liquid inlet valve, a wheel cylinder, a first liquid path and a second liquid path, the driving piece drives a first piston of the second cylinder to move, the wheel cylinder is connected to the liquid inlet valve, the first liquid path is located between the first cylinder and the liquid inlet valve, and the second liquid path is arranged between the second cylinder and the liquid inlet valve. And one of the first liquid path and the second liquid path is selectively communicated with the liquid inlet valve. According to the electric control hydraulic braking system, three braking modes can be achieved through the design of oil ways, the braking requirement during an electronic control failure can be met, the system reliability is high, various different braking force requirements can be met, and the requirements for the braking system in current intelligen