Title:
ELECTRIC SERVOMECHANISM
Document Type and Number:
Japanese Patent JPS5846413
Kind Code:
A
Abstract:
PURPOSE:To eliminate the influence of disturbance by providing an element, which compensates variation in load to be controlled and characteristics of a motor depending upon disturbance and the frictional operation, etc., of a sliding part, in front of the motor driving circuit of the electric servomechanism of a closed loop system. CONSTITUTION:This mechanism consists of a motor 2 for driving a load 1, a signal generator 3 for generating the command value V of the position of the load 1, and a position feedback circuit 4. This circuit 4 consists of a position detector 4a and a position detecting circuit 4b for the load 1. Then, a torque feedback circuit 5 consists of torque detectors 5a and 5b for torque to the load 1. An adder 6 calculates the deviation (e) between the command value V from the signal generator 3 and the position signal from the circuit 4, and in front of a motor driving circuit, load characteristics compensating elements 8 and 9 are provided successively from the side of the signal generator 3. Therefore, the output tau of the circuit 5 is fed back to the load characteristic compensating element 9.
Inventors:
IKEBE HIROSHI
HIRAI HIROTAKE
HIRAI HIROTAKE
Application Number:
JP14386581A
Publication Date:
March 17, 1983
Filing Date:
September 14, 1981
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G05D13/00; G05B11/36; G05D3/12; G05D3/14; (IPC1-7): G05B11/36; G05D3/12; G05D13/62
Domestic Patent References:
| JP40005742A | ||||
| JPS404177Y1 | 1965-02-05 |
Attorney, Agent or Firm:
Katsuo Ogawa