The present invention provides a service and supporting technology for backing up and restoring or replacing OEM vehicle keys. The system works by storing a copy of the data from an OEM key along with other information necessary to replace the OEM key in a key bank. The data collected is processed and stored such that a customer can order a universal replacement from the key bank programmed with the stored data to emulate the prior paired OEM key. No further pairing or programming is required by the customer.

A vehicle computer includes a memory and a processor. The processor is programmed to execute instructions stored in the memory. The instructions include to obtain input of one or more values displayed on a vehicle instrument panel and generate a password by combining the one or more input values and a stored secret key.

A vehicle ignition system includes an ignition cylinder housing defining an exterior portion, an interior portion and a channel extending at least partially through the interior portion. An ignition cylinder is at least partially received by and adjustable relative to the ignition cylinder housing. The ignition cylinder includes an elongate body defining an exterior portion and an interior portion. A cam member is at least partially received in the channel of the ignition cylinder housing and includes a clutch disposed adjacent to and engaging a portion of the ignition cylinder. A locking mechanism cooperates with the ignition cylinder housing and ignition cylinder includes a locking member having a projection extending therefrom that releasably engages a portion of the ignition cylinder housing when the locking mechanism is placed in the at least one second position to prevent adjustment of the ignition cylinder relative to the ignition cylinder housing.

A passive keyless entry system for an electronic lock, comprises a lock installation including a lock controller, and an RF transmitter and receiver, and a fob with a controller, and an RF transmitter and receiver. The fob generates messages to unlock the lock in an unlock event. The controllers share a secret specifying parameters for a sequence of messages to be exchanged bidirectionally between the installation and the fob, the parameters changing between each unlock event and an immediately subsequent unlock event. For each unlock event one of the controllers generates and sends a first message of the message sequence, in accordance with the specified parameters. The other controller causes transmission of a second message of the sequence in accordance with the specified parameters, in response to receiving the first message. At least one message of the sequence comprises a plurality of frames, each frame including a particular sequence of bits, adjacent frames being separated by an inter-frame interval. Adjacent messages in the sequence being separated by an inter-message interval. The specified parameters are such that a given message of the sequence includes a first inter-frame interval, and the inter-message interval between said given message of the sequence and the immediately preceding or immediately subsequent message is no longer than said first inter-frame interval.

An in-vehicle system executes authentication of a mobile device multiple times from a parking state until an engine is started. The in-vehicle system operates in an alert mode when a vehicle is parked, and transmits an authentication signal including a strength change signal. When the in-vehicle system operates in an alert cancellation mode, the mobile device returns a response signal only when there is a change in the strength of the received authentication signal. When the in-vehicle system succeeds in authentication of the mobile device in an authentication process in the alert mode, the in-vehicle system shifts to the alert cancellation mode. When the in-vehicle system operates in the alert cancellation mode, the mobile device returns the response signal irrespective of whether there is the change in the strength of the received authentication signal.

A method for passive access control including a mobile device serving as key and an interaction unit, the mobile device and the interaction unit having in each case at least one data communication facility for exchanging authorization information. Operations are provided for carrying out an electronic distance measurement between the mobile device and the interaction unit and for permitting an access and/or an interaction only if the distance of the mobile device from the interaction unit is within a permitted distance.

A lock system for access authorization in a motor vehicle, having a first device which has at least two states and is embodied as a control device, and having an associated second device which is embodied in the manner of an electronic key, an ID signal transmitter, a chip card or the like. The two devices have transmitters and/or receivers for electromagnetic signals. At least one of the signals transmitted between the second device and the first device is an encoded operating signal for authenticating the second device, with the result that after a positive evaluation of the transmitted operating signal when the second device is authorized it is possible to bring about a change in the state of the first device.

An apparatus for a vehicle key, an apparatus for a vehicle control system, and an apparatus for a mobile device. The apparatus includes a first interface to communicate with a vehicle control system and a second interface to communicate via a radio connection. The apparatus also includes a control module to receive proximity information from the vehicle control system via the first interface and to establish a radio connection via the second interface if the proximity information indicates spatial proximity of the vehicle key to the vehicle control system.

An onboard authentication device (60) includes: a communication unit (62) configured to receive key information; an existing electronic key determining unit (65C) configured to determine whether the key information received by the communication unit matches registered information; and an execution unit (65D, 65F) configured to execute a registration process of registering a second electronic key in the onboard authentication device or an invalidation process of invalidating the first electronic key registered in the onboard authentication device at a first time in a case that the existing electronic key determining unit determines the received key information matches the key information of the first electronic key and to execute the registration process or the invalidation process at a second time later than the first time in a case that the existing electronic key determining unit determines the received key information does not match the key information of the first electronic key.

An on-board device in a control system in which frequencies used for transmitting and receiving a signal between the on-board device and an electronic key are known, and the electronic key transmits a response signal to a desired signal within a specified period when completing reception of the desired signal from the on-board device, the on-board device transmits the desired signal on a first frequency included in a specified frequency band; transmits a dummy signal on a second frequency included in the specified frequency band and different from the first frequency; receives the response signal to the desired signal from the electronic key; and controls to transmit the dummy signal in a period from before stopping transmitting the desired signal to after starting reception of the response signal.