| 摘要 |
Provided is an abnormality detection method for a car body inclination control device that is capable of detecting which air spring is experiencing an air supply/exhaust abnormality. The present invention includes: a model creation step for creating a state estimation model for each half-car (10), that is, one half of a car; and an abnormality detection step for detecting, by applying a state estimation technique to the state estimation model, which of the air springs (3) is experiencing an air supply/exhaust abnormality. The state estimation model is a model whereby when flow rate command values indicating the amounts of air to be supplied to/exhausted from the respective air springs installed on each half-car are input, , the supply/exhaust flow rate command values input for the respective air springs are respectively multiplied by a virtual gain and averaged, and with respect to the averaged value an average value of the heights of the respective air springs is output, wherein the respective virtual gains are included as state variables. |
