Device for determining normality of electromagnetic control valve

An electromagnetic control valve normality determination system comprising:

• a hydraulic pressure source;
• an electromagnetic control valve structured to regulate an actual pressure of oil to a pressure command point, wherein the oil is supplied from the hydraulic pressure source;
• a normality determinator configured to determine normality of pressure regulation of the electromagnetic control valve;
• and
• an actual pressure sensor structured to sense the actual pressure of the oil;
• wherein the normality determinator is configured to:
• set pressure command regions without overlap among the pressure command regions, each of the pressure command regions corresponding to a range of pressures in which the pressure command point is locatable;
• determine for each of the pressure command regions whether a difference between the actual pressure and the pressure command point in the each of the pressure command regions is less than a threshold value;
• and
• determine that the electromagnetic control valve is in a first state, in response to determining the difference in each of the pressure command regions is less than the threshold value, the first state being a state in which the difference in each of the pressure command regions is less than the threshold value.