Main oil pressure control method of dual clutch transmission

The invention provides a main oil pressure control method of a dual clutch transmission and relates to the control method of the dual clutch transmission, in particular to a method to control main oil pressure in a hydraulic circuit of the dual clutch transmission in clutch switching and gear choice. According to the main oil pressure control method, efficiency of the dual clutch transmission in the clutch switching is improved, stability of a hydraulic system in control for clutches of the dual clutch transmission is maximized, efficiency of the dual clutch transmission can be improved in the gear choice, and meanwhile the stability of the hydraulic system is maximized in control for the gear choice of the dual clutch transmission. According to the main oil pressure control method, reference pressure is conformed based on self-adaptation control according to input torque of the transmission and the input speed of the clutches, main oil pressure is adjusted to be higher according to requirements in the proces