摘要:
A vehicle system includes a plurality of tire sensors, a plurality of low frequency (“LF”) antennas and an ECU. Each tire sensor is mounted in a respective tire of the vehicle. Each LF antenna is mounted on the vehicle and is configured to transmit an LF field to wake up two tire sensors. The ECU is in communication with the tire sensors, via a receiver, and the LF antennas. The ECU is configured to receive identification signals from the respective tire sensors and to determine locations of the respective tire sensors based on which antenna woke up the tire sensor transmitting the respective identification signal and whether the respective identification signal matches other received identification signals. The ECU is further configured to store the identification signals in the memory with the identification signals being associated with the respective tire sensors that transmitted the identification signal.
摘要:
A vehicle entry/tire pressure management system includes a plurality of tire sensors, a plurality of low frequency (“LF”) antennas and an ECU. Each tire sensor is mounted in a respective tire of the vehicle. Each LF antenna is mounted on the vehicle and is configured to transmit an LF field to wake up two tire sensors. Some antennas can also be configured to transmit a SMART entry LF search field to wake up a portable transmission/reception unit for keyless entry of the vehicle. The ECU is in communication with the tire sensors, via a receiver, and the LF antennas. The ECU is configured to receive identification signals from the respective tire sensors and to determine locations of the respective tire sensors based on which antenna woke up the tire sensor transmitting the respective identification signal and whether the respective identification signal matches other received identification signals.
摘要:
A vehicle entry/tire pressure management system includes an ECU, tire sensors mounted in, on or adjacent respective tires of the vehicle, a portable transmission/reception unit configured to be carried by an operator of the vehicle, and an antenna mounted on the vehicle and in communication with the ECU. Each tire sensor is configured to transmit an RF signal. The portable transmission/reception unit can transmit RF signals for controlling operations of the vehicle including unlocking doors of the vehicle. The antenna is configured to transmit an LF tire sensor wake up field to wake up the tire sensors. The tire sensor wake up field includes a unique header format. The tire sensors only fully wake up upon receiving the unique header format.
摘要:
A vehicle entry/tire pressure management system includes an ECU, tire sensors mounted in, on or adjacent respective tires of the vehicle, a portable transmission/reception unit configured to be carried by an operator of the vehicle, and an antenna mounted on the vehicle and in communication with the ECU. Each tire sensor is configured to transmit an RF signal. The portable transmission/reception unit can transmit RF signals for controlling operations of the vehicle including unlocking doors of the vehicle. The antenna is configured to transmit an LF tire sensor wake up field to wake up the tire sensors. The tire sensor wake up field includes a unique header format. The tire sensors only fully wake up upon receiving the unique header format.
摘要:
A vehicle system includes a plurality of tire sensors, a plurality of low frequency (“LF”) antennas and an ECU. Each tire sensor is mounted in a respective tire of the vehicle. Each LF antenna is mounted on the vehicle and is configured to transmit an LF field to wake up two tire sensors. The ECU is in communication with the tire sensors, via a receiver, and the LF antennas. The ECU is configured to receive identification signals from the respective tire sensors and to determine locations of the respective tire sensors based on which antenna woke up the tire sensor transmitting the respective identification signal and whether the respective identification signal matches other received identification signals. The ECU is further configured to store the identification signals in the memory with the identification signals being associated with the respective tire sensors that transmitted the identification signal.
摘要:
A vehicle entry/tire pressure management system includes a plurality of tire sensors, a plurality of low frequency (“LF”) antennas and an ECU. Each tire sensor is mounted in a respective tire of the vehicle. Each LF antenna is mounted on the vehicle and is configured to transmit an LF field to wake up two tire sensors. Some antennas can also be configured to transmit a SMART entry LF search field to wake up a portable transmission/reception unit for keyless entry of the vehicle. The ECU is in communication with the tire sensors, via a receiver, and the LF antennas. The ECU is configured to receive identification signals from the respective tire sensors and to determine locations of the respective tire sensors based on which antenna woke up the tire sensor transmitting the respective identification signal and whether the respective identification signal matches other received identification signals.
摘要:
A method for disabling a passive entry key includes receiving a search request into an electronic control unit (“ECU”) on a vehicle to search for a passive key inside a vehicle cabin; emitting a search signal via an antenna in communication with the ECU in response to the received search request; receiving a reply signal via the antenna from the passive key inside the vehicle cabin; and recording in a memory in communication with the ECU an identification of the passive key inside the vehicle cabin in response to the received reply signal. In this method for disabling a passive entry key, the search request can be initiated by an operator at an input device. A passive entry key system is also disclosed.
摘要:
A keyless function system and method includes a portable device having a vehicle function actuator thereon for initiating operation of a vehicle function. The portable device transmits an actuation signal to the vehicle when the vehicle function actuator is actuated. The receiver onboard the vehicle receives the actuation signal from the portable device. A controller onboard the vehicle and operatively connected to the receiver determines at least one of: whether the vehicle is located at a predetermined location or whether the portable device is located less than a predetermined distance from the vehicle. The controller selectively commands performance of the vehicle function when the actuation signal is received by the receiver based on at least one of: whether the vehicle is at the predetermined location or the portable device is less than the predetermined distance from the vehicle.
摘要:
A smart communication system and method for a vehicle includes a master switch for toggling smart functionality on and off. An actuation signal is received by a control unit corresponding to a particular vehicle function. The actuation signal indicates that a corresponding actuating operation is occurring. The control unit determines whether the master switch is in an ON position. A key fob of the vehicle is confirmed to be within a search field of the vehicle when the master switch is determined to be in the ON position. The particular vehicle function is actuated when the key fob is confirmed to be within the search field; otherwise, manual actuation of the particular vehicle function is required.
摘要:
A key fob assembly includes a mechanical key, a key fob, a control in the key fob, Hall effect switches in the key fob, and magnets associated with the mechanical key. The mechanical key is configured to cooperate with a mechanical lock. The key fob is configured to selectively connect with the mechanical key. The control in the key fob is for transmitting wireless signals to a vehicle to actuate components on the vehicle. The Hall effect switches in the key fob are each in electrical communication with the control. At least one of the Hall effect switches changes an operating state based on detecting a positive magnetic field and at least one other Hall effect switch changes an operating state based on detecting a negative magnetic field. Respective poles of the magnets are disposed such that connection of the mechanical key with the key fob in a storage position aligns the poles of the magnets with respective Hall effect switches for changing the operating state of the respective Hall effect switches.