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Rolling away protection after engine switch off and security device

  • US 7,496,431 B2
  • Filed: 05/18/2005
  • Issued: 02/24/2009
  • Est. Priority Date: 11/19/2002
  • Status: Active Grant
First Claim
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1. Safety equipment to prevent a motor vehicle from moving after the engine is turned off,wherein the motor vehicle is equipped with a keyless starting system, which includes an identification transducer carried by a vehicle user and a control element for starting and stopping an engine,wherein the motor vehicle has an automatic transmission activated by a selection device and a gear position (“

  • P”

    ) for Park can be selected along with other gear positions by a selector device,wherein the safety equipment includesan initial release device which allows the engine to be stopped and which is activated for release for vehicle speeds greater than a preset threshold speed, anda second release device which allows the engine to be stopped and which is activated for release if the vehicle'"'"'s own controls detect an engine problem,wherein when the initial or second release devices are not activated, the engine can only be turned off when the gear position “

    P”

    for Park is selected.

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