Data acquisition method for automatic transmission offline test system

The invention discloses a data acquisition method for an automatic transmission offline test system. The automatic transmission offline test system comprises an offline test bench and a measurement and control device; the measurement and control device is electrically connected with the sensors of the offline test bench and the sensor of an automatic transmission; in the process of testing the automatic transmission, the measurement and control device converts and synchronizes signals outputted by the sensors at preset intervals, so that the detection data of the sensors can be obtained; the sensors of the offline test bench comprise oil pressure sensors; and the measurement and control device performs stability judgment on the detection data of the oil pressure sensors to obtain an oil pressure stability judgment result. According to the data acquisition method for the automatic transmission offline test system of the invention, the signals outputted by the sensors are converted and synchronized, so that the