12A turbine ventilator pressure controlled ventilation method comprising the following steps: a ventilator is started up a control unit in the ventilator controls a turbine motor to rotate at rotational speed U the turbine motor provides the ventilator with a hyperbaric gas； a detector unit detects the breathing state of a patient if the patient is in an inhalation state proceeds to an inhalation phase control and if the patient is in an exhalation state proceeds to an exhalation phase control； the air pressure of an inhalation phase is controlled by the control unit by controlling driving voltage V of an inhalation valve to regulate the extent to which the inhalation valve is opened the positive end expiratory pressure of an exhalation phase is controlled by the control unit by controlling driving voltage V of an exhalation valve to regulate the extent to which the exhalation valve is opened and if auxiliary air supply by the ventilator to the patient is ceased the ventilator is shut down. The method implements real time synchronous control of the rotational speed of the turbine motor and real time control of input voltages of the inhalation valve and of the exhalation valve of the ventilator thus implementing the goals of precision control of motor rotational speed and of target pressure.
