Method and apparatus for the electronic operation and monitoring

Details Method and apparatus for the electronic operation and monitoring Method and apparatus for the electronic operation and monitoring

1981-09-10

1984-08-28

Truhe, Joseph V.

Electricity: motive power systems

Motor-reversing

Armature or primary circuit control

318286, 318468, H02P 720

Patent

active

044685963

ABSTRACT:
A method and apparatus for operating and monitoring the opening and closing cycle of electrically operated units such as electric windows and electric slide roofs which both eliminates the danger of body parts getting caught in the window and permits a complete opening and closing of the window automatically. In accordance with the invention, the speed of the drive motor is measured, directly or indirectly, and the first obtained measured value is compared with all following measured values. More particularly, this first measured value is used to detect momentary electrical and mechanical factors which change over the entire time of operation of the window, such as self-heating of the drive motor, the voltage charge of the battery, and the state and condition of the window. The processing or comparing of the measured values is carried out by a microcomputer. The actual measuring of the speed is by means of a sensor. The changes furnished by those sensors are utilized to determine the position of the window. This recognition of the position makes it possible in case of danger, to safely turn off the drive motor and possibly to open the window again. Further still, in a normal case, the window may be closed completely.

REFERENCES:
patent: 4234833 (1980-11-01), Barrett
patent: 4328540 (1982-05-01), Matsuoka et al.
patent: 4338553 (1982-07-01), Scott, Jr.

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