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Vehicle with sliding door contact closure sensor
| Details |
Inventors: Long, Joseph D.; Strother, Robert S.; Mitchener, John F.; Bree, Gary D.;
Assignee: General Motors Corporation (Detroit, MI)
Primary Examiner: Song; Robert R.
Assistant Examiner:
Attorney, Agent or Firm: Sigler; Robert M.
A vehicle such as a van has a sliding door movable between open and closed positions. An electric power source, a door drive switch and electric door drive apparatus are connected in series on the vehicle body to move the door when the switch is closed. Contacts on the vehicle body and door engage as the door nears its closed position; and the door contacts are connected through circuitry, such as an unlatch motor armature, having a first resistance. One of the body contacts is connected to ground and the other is connected, through circuitry including a resistor of greater resistance than the unlatch motor armature, to a junction of the door drive switch and the electric door drive apparatus. An output terminal connected between the resistor and the other body contact provides a signal voltage having different levels depending on engagement of the body and door contacts. The resistor may be connected to the other body contact through an activating switch for the unlatch motor, in its non-activated condition, with the output terminal connected therebetween, so as to isolate the output terminal from transients generated during unlatch motor activation. |
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DETAILED DESCRIPTION The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1.
A vehicle comprising, in combination: a body having a door movable between open and closed positions; an electric power source on the vehicle body having first and second terminals; first and second body contact means in predetermined spatial relationship on the body, the second body contact means being connected to the second terminal of the electric power source; first and second door contact means in predetermined spatial relationship on the door so as to contact the first and second body contact means, respectively, as the door nears its closed position; first circuit means connecting the first and second door contacts to establish an electrically conductive path therebetween having a first resistance; electric drive means on the body adapted to drive the door to its closed position; a door drive switch connected in series with the electric drive means and the electric power source for controlling activation of the former by the latter, the door drive switch being connected to the first terminal of the electric power source; second circuit means including a series resistor with a resistance greater than the first resistance, the second circuit means being connected from a junction of the door drive switch and the electric drive means to the first body contact; and an output terminal between the series resistor of the second circuit means and the first body contact to provide a door contact closure signal when the door drive switch is closed to activate the door drive means and the first and second door contact means engage the first and second body contact means.
2.
The vehicle of claim 1 in which the electric drive means comprises an activating coil of an electromagnetic clutch.
3.
The vehicle of claim 1 in which the first circuit means comprises an armature of an unlatch motor adapted to activate a latch mechanism on the door.
4.
The vehicle of claim 2 in which the first circuit means comprises an armature of an unlatch motor adapted to activate a latch mechanism on the door
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