Automobile bearing rigidity detection control device

The utility model relates to an automobile bearing rigidity detection control device and belongs to the technical field of detection control devices. A DI/O card, an A/D data acquisition card and a D/A card are connected with an industrial control computer in a PCI bus mode, digital pressure protection input signals of a hydraulic system are inputted to the industrial control computer through the DI/O card, and displacement and pressure change values are transmitted to the industrial control computer by a pressure sensor and a displacement sensor through the A/D data acquisition card. The automobile bearing rigidity detection control device is advantaged in that the computer technology is utilized, through high precision online detection on the displacement and pressure change values, a bearing pressure and displacement angle change curve is calculated and described, rigidity of a bearing under the action of integrated pressure can be intelligibly expressed, reliable technical data is provided for design and technology improvement of the bearing, and thereby product quality is improved.