METHOD FOR OPERATING AN AUTHORIZATION DEVICE FOR A KEYLESS ACCESS TO AND START OF A VEHICLE
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Accused Products
Abstract
A method for operating an authorization device for keyless entry and starting of a vehicle with a portable ID transmitter that has a motion sensor. A wireless communication link for interchanging data messages can be set up between the authorization device and the ID transmitter. Keyless entry to the vehicle is permissible only when an instant of last movement of the ID transmitter, as captured by the motion sensor, is within a stipulated interval of time. The authorization device permits keyless starting of the vehicle only when keyless entry to the vehicle has previously been permitted.
8 Citations
18 Claims
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1-6. -6. (canceled)
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7. A method for operating an authorization device for keyless entry and keyless starting of a vehicle using a portable ID transmitter that includes a motion sensor, the method comprising:
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receiving, by the authorization device from the ID transmitter over a wireless communication link, an instant of last movement of the ID transmitter as captured by the motion sensor; performing a first authorization check comprising comparing, by the authorization device, the instant of last movement of the ID transmitter as captured by the motion sensor, with a predetermined interval of time; permitting keyless entry to the vehicle only if the instant of last movement of the ID transmitter as captured by the motion sensor is within the predetermined interval of time; performing a second authorization check comprising checking whether entry to the vehicle was permitted via keyless entry and the first authorization check, the first authorization check being performed before the second authorization check; and permitting, by the authorization device, keyless starting of the vehicle if entry to the vehicle was permitted by keyless entry and the first authorization check. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A vehicle comprising:
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an engine; a door; and an authorization device to; receive from a portable ID transmitter over a wireless communication link, an instant of last movement of the ID transmitter as captured by a motion sensor included in the ID transmitter, compare, in a first authorization check, the instant of last movement of the ID transmitter as captured by the motion sensor with a predetermined interval of time, permit keyless entry to the vehicle only if the instant of last movement of the ID transmitter as captured by the motion sensor is within the predetermined interval of time, perform, in a second authorization check, whether entry to the vehicle was permitted via keyless entry and the first authorization check, the first authorization check being performed before the second authorization check, and permit keyless starting of the vehicle if entry to the vehicle was permitted by keyless entry and the first authorization check.
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Specification