Patent ID: 11931904
Assignee: NISSAN MOTOR CO., LTD.
Field: Handling (Mechanical engineering)
Classification: CPC B  G  Y | IPC B

Claim 8:
9. An abnormality determination system comprising:
a work equipment comprising an arm driven by a motor driving system and provided with an attaching part to which a plural kinds of work parts are attached in a replaceable manner; and
an abnormality determination apparatus for acquiring state data from the work equipment indicating a state of the work equipment and determining an abnormality of the work equipment, wherein the abnormality determination apparatus:
acquires, as the state data, data on a disturbance torque applied to the motor driving system;
identifies a kind of a work part attached to the attaching part;
sets abnormality determination data corresponding to the identified kind of the work part, for determining an abnormality of the work equipment, by using the state data of a time when the identified kind of the work part was attached; and
acquires a latest state data of a time when the identified kind of the work part was being attached from among state data acquired from the work equipment and compares the acquired latest state data with the set abnormality determination data to determine an abnormality of the work equipment.