Hydrogen fuel cell commercial vehicle emergency steering system and control method

The invention discloses an emergency steering system of a hydrogen fuel cell commercial vehicle, and belongs to the technical field of hydrogen fuel cell vehicles. Comprising a gas-driven oil supercharging device, a high-pressure hydrogen flow adjusting device, a hydrogen cylinder group, a steering oil tank, a steering engine, a steering control valve and a steering wheel, the steering wheel is connected with the steering control valve through the steering shaft, the steering oil tank is communicated with the steering control valve, and the steering control valve is communicated with the steering engine. The hydrogen cylinder group is communicated with the high-pressure hydrogen flow adjusting device, the high-pressure hydrogen flow adjusting device is communicated with the gas-driven oil pressurizing device, the gas-driven oil pressurizing device is communicated with the steering oil tank, the gas-driven oil pressurizing device is communicated with the steering control valve, and the steering control valve i