Power memory seat and mirror control system

Details

Inventors: Sullivan, Thomas M.;
Assignee: Chrysler Motors Corporation (Highland Park, MI)
Primary Examiner: Shoop, Jr.; William M.
Assistant Examiner: Bergmann; Saul M.
Attorney, Agent or Firm: Fredericks; Wendell K.

A power memory seat and mirror apparatus useful for controlling manual and automatic operations is disclosed. Supply voltage switch signals and analog voltage potentiometer sense signals are buffered so as to provide digital logic signals utilized by a microcomputer to store in a non-volatile memory desired seat and mirror position data. Means are provided permitting later recalling of the desired position data and automatically repositioning the seat and mirrors to the memorized positions. The system also provides diagnostic and failure mode operations. Additional means is included for activating the system when the ignition switch of the vehicle is off.

DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT With reference now to drawing FIGS.
1 and 2, there is shown in FIG.
1 a top view of a vehicle 2 with a driver 3 sitting in an adjustable driver seat 4 viewing driver door external mirror 5 and passenger door external mirror 6 (the structure of the doors not being specifically delineated).
FIG.
2 illustrates a side view of driver 3 sitting in seat 4 viewing mirror 5.
It is apparent from these figures that if seat 4 is adjusted, the external mirrors should be adjusted.
In FIG.
1, with respect to longitudinal axis "A", a first incident path of view "B" to driver door mirror 5 is less than a second incident path of view "C" to passenger door mirror 6.
An included angle "D" increases as the driver 3 moves seat 4 closer to the mirrors and it decreases as seat 4 is moved away from the mirrors.
As included angle "D" varies, the angular positions of mirrors 5 and 6 about first and second vertical axes "E" and "F", respectively, must also vary to correct for changes occurring to first and second reflected paths "H" and "J" of the view.
Adjustable driver seat 4 includes a seat cushion 7 slideably mounted on a pair of transport tracks 8--8 as shown in FIG.
1 and a seat back pivotally mounted about a rear end 10 of seat cushion 7 for tilting movement between an upright position and a rearward reclined position.
Mounted in tracks 8--8 are rack mechanisms (not shown) that are linked to cushion 7 and seat back 9 for affecting at least eight different directions of seat movement.
A front end 11 of seat cushion 7 and the rear end 10 can be moved attitudinally up and down independently or simultaneously.
Seat cushion 7 can be moved positionally along tracks 8--8 to a plurality of locations from between a full forward position, which enables a reasonably short statured driver to reach the floor controls of the vehicle, and a full rearward position which permits easy entry into and out of the vehicle.
Mounted in track 8--8 are end stops (not shown) disposed to limit forward and rearward motion of cushion 7

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