The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 1985
Filed:
Jul. 30, 1982
Paul A Michaels, Livonia, MI (US);
David L Kaleita, Sterling Heights, MI (US);
Lectron Products, Inc., Rochester, MI (US);
Abstract
An improved electronic controller for an automobile power seat system is disclosed. The electronic controller features a microcomputer which receives command signals from a first and second group of operator actuable switches, present position signals from a monitoring circuit, and stored position signals from a memory circuit for generating control signals for directing a motive power means to adjust the position of an automobile seat. The monitoring circuit includes transducer means for sensing the current draw from the d.c. power source, and differentiating means connected to the transducer means for generating a pulse concomitantly with each commutation of the motor from the motive power means. These pulse position signals are sent to the microcomputer and then counted by an internal timer for determining the present position of the automotive seat. These pulse position signals are used to determine a 'stall' condition which occurs when the rack mechanism has encountered a mechanical stop, such as when the seat reaches its full forward position. The time between these pulses is monitored and a stall condition is determined when the time between these pulses exceeds a predetermined period.