A method for connecting a Bluetooth key to a vehicle, a vehicle Bluetooth system, and a Bluetooth key, comprises: when a mobile terminal enters a preset distance range of a vehicle, a Bluetooth master module of the vehicle performs authentication and connection with a Bluetooth key of the mobile terminal according to preset key information (S11); after the Bluetooth master module is successfully connected to the Bluetooth key, the Bluetooth master module generates an original random code and encrypts the original random code to obtain an encrypted random code (S12); the Bluetooth master module sends the original random code to a Bluetooth slave module, and sends the encrypted random code to the Bluetooth key (S13); and the Bluetooth slave module and the Bluetooth key perform bidirectional authentication according to the encrypted random code and the original random code, and when bidirectional authentication succeeds, the connection is established (S14).

An authentication control includes a connection authentication and an operation authentication for an authentication target device using a mobile terminal and a communication device that receives a signal from the mobile terminal toward the authentication target device. Information received by a reception unit in the mobile terminal and information detected by a state sensor for detecting a state of the mobile terminal are acquired. A connection response signal is transmitted from a transmission unit in the mobile terminal when the state of the mobile terminal satisfies a permission condition. A state determination for determining the state of the mobile terminal is performed after the reception unit receives the connection request signal.

A system comprising a radar device and a mobile device. The radar device may be configured to operate when a vehicle is turned off, detect a presence of a person in the vehicle, determine an age range of the person detected and generate an alert signal in response to a presence signal and determining that the age range of the person detected corresponds to a child. The mobile device may be configured to communicate the presence signal to the radar device and determine a movement of the mobile device. The radar device may determine a distance of the mobile device from the vehicle in response to the presence signal. The radar device may suppress the alert signal when the distance of the mobile device is within a predetermined range of the vehicle and the mobile device is moving.

An access system for a vehicle includes a receiver and an access module. The receiver is configured to receive a signal transmitted from a portable access device to the vehicle. The access module is configured to: generate a differentiated signal based on the received signal; up-sample the differentiated signal to generate a first up-sampled signal; obtain or generate an expected signal; up-sample the expected signal to generate a second up-sampled signal; cross-correlate the first up-sampled signal and the second up-sampled signal to generate a cross-correlation signal; based on the cross-correlation signal, determine a phase difference between the first up-sampled signal and the second up-sampled signal; determine a round trip time of the signal received by the receiver; and permit access to the vehicle based on the round trip time.

In general, aspects of this disclosure are directed towards techniques for using a computing device to perform the functionality of a vehicle key, so that the computing device may be used to automatically unlock the doors of a vehicle and/or to activate a previously-deactivated keyless ignition system. The computing device may be associated with a vehicle, including sending an identifier associated with the computing device to the vehicle via short-range communication. The computing device may also send to the vehicle, via short-range communication, at least one unlock door signal including an access code verifiable by the vehicle, and wherein receipt of the at least one unlock door signal by the vehicle enables the vehicle to unlock one or more of its doors without further user intervention.

The present disclosure is directed to an automotive computer in communication with a mobile device using an authentication manager to increase and/or reduce user privileges that determine a level of vehicle control or feature access that is granted to the user. The authentication manager may increase or decrease the user privilege to standard rider status until the authentication manager has confirmed elevated status for that user via a cloud security challenge question or via a local identification method such as using the mobile device authentication features. This process may be additionally triggered based on environmental or context-based use cases, such as a high traffic condition, local cyber-attack, or transportation of sensitive goods. The system may utilize the authentication to perform out of band pairing of the mobile device and the vehicle, which may add additional security.

The invention relates to a method for controlling access to at least one function of a motor vehicle (10), comprising:—an action step during which an electronic control unit (11) on board the motor vehicle detects an interaction of a user with the motor vehicle,—a verification step during which the electronic control unit verifies that the user is authorised to access said function, and—an authorisation step during which the electronic control unit authorises access to said function. According to the invention, said verification step comprises sending of a query message by said electronic control unit to a mobile terminal (20) carried by the user or by a person accompanying the user, and said authorisation step is only implemented if, in response to the query message, the electronic control unit receives an access-right validation message from the mobile terminal.

The present invention relates to a method for securely connecting a vehicle and a Bluetooth key, a vehicle Bluetooth module and a Bluetooth key. The method comprises: when a vehicle Bluetooth module successfully establishes a Bluetooth communication connection with a mobile terminal installed with a Bluetooth key, the vehicle Bluetooth module receiving an authentication request from the Bluetooth key, wherein an authentication manner of the authentication request is simple authentication or common authentication; when the authentication manner of the authentication request is simple authentication, the vehicle Bluetooth module performing security authentication on the Bluetooth key according to the simple authentication manner, and sending an authentication result to the Bluetooth key; and when the authentication result indicates that authentication fails, or the authentication manner of the authentication request is common authentication, the vehicle Bluetooth module performing security authentication on the Bluetooth key according to the common authentication manner.

A vehicular starter battery management system includes a detection unit, a processing unit, a control unit, a discharging circuit and a communication unit. The detection unit, the control unit, and the communication unit are coupled respectively with the processing unit. The discharging circuit is coupled with the control unit. The detection unit includes a static detection circuit and a dynamic detection circuit. The static detection circuit includes a micro current detection circuit, an anti-theft detection circuit and a static voltage detection circuit. The dynamic detection circuit includes a dynamic voltage detection circuit, a dynamic current detection circuit and a temperature detection circuit. The processing unit transmits a signal to the control unit and the communication unit based upon the current intensity, the voltage, the temperature and the time at which the battery management system enters into the static mode, detected by the detection unit, thereby operating the control unit to protect the vehicular starter battery. The processing unit uses the communication unit to transmit a signal to and receive a signal from a hand-held communication device equipped with an application.

A vehicle wireless communication system includes: a vehicle including an output circuit; and first and second communication devices configured to wirelessly communicate with the vehicle. In a case in which the first communication device is positioned in a first area including one point located inside the vehicle, the use of the vehicle is permitted. In a case in which the first communication device is positioned in a second area including the one point and the second communication device is not positioned in a third area including the one point, the output circuit outputs a notification that there is a possibility of failure to carry the second communication device. In a case in which the first communication device is positioned in the second area and the second communication device is positioned in the third area, the output circuit of the vehicle does not output the notification.