Construction machine driving device, and construction machine and construction machine system provided with same

A construction machine driving device comprising:

• an operation device to which an operation by an operator for moving a work device with respect to a machine body is given;
• and
• a controller,
• wherein the controller:
• sets a target physical quantity that is a target of a physical quantity related to an orientation of the work device;
• calculates a current physical quantity that is a physical quantity related to an actual orientation of the work device;
• calculates a physical quantity error that is an error between the target physical quantity and the current physical quantity;
• calculates an assistance operation value for assisting the operation of the operator;
• corrects an operator operation value corresponding to the operation to an operator correction value such that the operator correction value becomes smaller when the physical quantity error is small as compared with when the physical quantity error is large;
• corrects the assistance operation value to an assistance correction value such that the assistance correction value becomes larger when the physical quantity error is small as compared with when the physical quantity error is large;
• and
• controls the orientation of the work device by using a total value obtained by adding the operator correction value and the assistance correction value.