Door-locking system for a motor vehicle

• US 4,895,009 A
• Filed: 11/04/1988
• Issued: 01/23/1990
• Est. Priority Date: 11/05/1987
• Status: Expired due to Term

• Current Assignee: Kiekert AG (Lingyun Industrial Corporation Limited)
• Original Assignee: Kiekert GmbH & Company KG
• Inventors: Bartel, Peter, Kleefeldt, Frank
• Primary Examiner(s): Smith, Gary L.
• Assistant Examiner(s): Dino, Suzanne L.
• Application Number:
  US07/267,385
• Time in Patent Office: 445 Days
• Field of Search: 70/238, 70/256, 70/263, 70/264, 70/265, 70/275, 70/277, 340/825.31
• US Class Current: 70/264
• CPC Class Codes: G07C 2009/00793 by Hertzian waves
• CPC Class Codes: G07C 9/00182 operated with unidirectional data transmission between data carrier and locks
• CPC Class Codes: Y10T 70/5894 Plural point
• CPC Class Codes: Y10T 70/5973 Remote control
• CPC Class Codes: Y10T 70/65 Central control
• CPC Class Codes: Y10T 70/7062 Electrical type [e.g., solenoid]

Abstract

The door-lock system for a motor vehicle has mechanical motor vehicle door locks in all motor vehicle doors and the trunk lid, a mechanical lock cylinder in the motor vehicle door lock of the driver'"'"'s door and a remotely operable electronic operating mechanism with a transmitter acting as an electronic key, a receiver and decoder as well as a power supply. The motor vehicle door locks in the doors have at least one locked configuration and an additional theft preventative configuration as well as a central lock mechanism drive with control positions for engagement and/or disengagement of the theft preventative configuration. The central lock mechanism drive is operable by the electronic operating mechanism. The decoder and the receiver of the electronic operating mechanism are independent components which are connected only electrically. The receiver is located otside, e.g. in the driver'"'"'s door, and only operates from the outside by a transmitter. The decoder is located in the inside of the motor vehicle and is connected electrically with the central lock mechanism drive. Moreover, an emergency operating device is provided for disengagement of the theft preventative mechanism.

Claims

1. In a door-closing system for a motor vehicle having a trunk lid and a plurality of motor vehicle doors comprising a mechanical motor vehicle door lock in each of said motor vehicle doors and in said trunk lid, a mechanical lock cylinder in said door lock of the driver'"'"'s door of said motor vehicle doors and a remotely controllable electronic operating device with a transmitter acting as an electronic key, a receiver and decoder and a power supply, said motor vehicle door locks in said motor vehicle doors having at least one locked configuration and an additional theft preventative configuration and a central lock mechanism drive with control positions for engagement and/or disengagement of said theft preventative configuration and said central lock mechanism drive being operable by said electronic operating device, the improvement wherein said decoder and said receiver of said electronic operating device are independent components which are connected only electrically so that said receiver is located outside in said driver'"'"'s door, and is operable only from said outside by said transmitter, said decoder is located in the interior of said motor vehicle and is connected electrically with said central lock mechanism drive and an emergency device for disengagement or release of said theft preventative configuration is provided, said emergency device operating electrically on said central lock mechanism drive and having a theft preventative mechanism disengaging switch, said theft preventative mechanism disengaging switch being located in a space closed by said trunk lid which has one of said motor vehicle door locks with one of said central lock mechanism drive which cannot take one of said theft preventative configurations and is operable by a mechanical key.

2. The improvement according to claim 1 wherein said decoder is combined with a plurality of said receivers of which in addition to said receiver in said driver'"'"'s door including a receiver located outside in the passenger door of said motor vehicle doors and another is located outside in the vicinity of said trunk lid.

3. A door-closing system for a motor vehicle having a plurality of motor vehicle doors and a trunk lid comprising:

a mechanical motor vehicle door lock for each of said motor vehicle doors and said trunk lid having at least one locked configuration and an additional theft preventative configuration;

a mechanical lock cylinder in said motor vehicle door lock of the driver'"'"'s door of said motor vehicle doors;

a remotely controllable electronic operating device having a transmitter acting as an electronic key, a plurality of receivers and a separate decoder independent of said receivers and a power supply, an additional central lock mechanism drive with control positions for engagement and/or disengagement of said theft preventative configuration operable by said electronic operating device also being provided, one of said receivers being located outside, e.g. in said driver'"'"'s door, and being operable only from said outside by said transmitter, said decoder being located in the interior of said motor vehicle and connected electrically with said central lock mechanism drive, another of said receivers being located outside in the passenger door of said motor vehicle doors and still another of said receivers being located in the vicinity of said trunk lid; and

an emergency device for disengagement or release of said theft preventative configuration operating electrically on said central lock mechanism drive and having a theft preventative mechanism disengaging switch mounted in a space closed by said trunk lid which has said motor vehicle door lock with one of said central lock mechanism drives which cannot take one of said theft preventative configurations and is operable by mechanical key.