摘要:
A tire position identification system and method include a transmitter that is configured to send an initiation signal. A receiver is configured to receive the initiation signal and attenuate the initiation signal until the initiation signal is within a first predetermined range of a reference signal. A controller identifies the position of a tire in response to the attenuation. In some embodiments, the reference signal is adjusted until the attenuated initiation signal is within a second predetermined range of the adjusted reference signal, and the position of the tire is identified further in response to the amount of adjustment of the reference signal.
摘要:
A universal monitor to be mounted in a tire of a vehicle, the monitor for use in a remote tire pressure monitoring system for the vehicle. The monitor includes a sensor for sensing tire pressure, and a storage device for storing a plurality of codes, each code comprising at least a data format. The monitor also includes a transmitter in communication with the sensor and the storage device, the transmitter for transmitting a wireless signal including data representing the sensed tire pressure. The wireless signal is transmitted by the transmitter according to at least one of the stored plurality of codes.
摘要:
A vehicle tire pressure monitoring (TPM) system, the system including an immobilizer transmitter that transmits at least one low frequency (LF) sensor diagnostic signal, at least one TPM sensor, wherein the at least one TPM sensor includes a transceiver that receives the at least one LF sensor diagnostic signal and, when the at least one TPM sensor is operating properly, presents at least one radio frequency (RF) message signal, and a TPM receiver that receives the at least one RF message signal and provides an indication to an operator when the at least one RF message signal is received, wherein the LF sensor diagnostic signal is transmitted to determine proper operation of the at least one TPM sensor.
摘要:
In order to provide better resolution over a wider pressure range the previously available, the techniques disclosed herein set an output precision of an analog-to-digital converter (ADC) based on a control signal provided by a control element. The control signal sets the output precision of the ADC to a first level to measure an ambient pressure within a first pressure range; and signal sets the output precision of the ADC to a second level to measure an ambient pressure within a second pressure range.
摘要:
A position identification system and method include a receiver configured to receive an initiation signal and attenuate the initiation signal until the initiation signal is within a first predetermined range of a reference signal. A controller identifies the position of the receiver in response to the attenuation.
摘要:
A tire position identification system and method include a transmitter that is configured to send an initiation signal. A receiver is configured to receive the initiation signal and attenuate the initiation signal until the initiation signal is within a first predetermined range of a reference signal. A controller identifies the position of a tire in response to the attenuation. In some embodiments, the reference signal is adjusted until the attenuated initiation signal is within a second predetermined range of the adjusted reference signal, and the position of the tire is identified further in response to the amount of adjustment of the reference signal.
摘要:
A universal monitor to be mounted in a tire of a vehicle, the monitor for use in a remote tire pressure monitoring system for the vehicle. The monitor includes a sensor for sensing tire pressure, and a storage device for storing a plurality of codes, each code comprising at least a data format. The monitor also includes a transmitter in communication with the sensor and the storage device, the transmitter for transmitting a wireless signal including data representing the sensed tire pressure. The wireless signal is transmitted by the transmitter according to at least one of the stored plurality of codes.
摘要:
A system and method for use in wireless communication includes connecting a communication circuit to an antenna network. The network includes multiple antennas, each antenna optimized for operation in one of multiple designated frequency bands.
摘要:
An antenna coupler for a wireless communication system in a vehicle couples a transmit signal source to a plurality of antennas arranged within the vehicle. A first saturable reactor has a first load winding and a first control winding wound on a first saturable core, the first load winding coupling the signal source to a first antenna. A first current source is coupled to the first control winding for providing a selected current to the first control winding. A second saturable reactor has a second load winding and a second control winding wound on a second saturable core, the second load winding coupling the signal source to a second antenna. A second current source is coupled to the second control winding for providing a selected current to the second control winding. A controller is coupled to the first and second current sources for commanding the first and second selected currents to selectably attenuate or non-attenuate a transmit signal from the transmit signal source to each respective antenna.
摘要:
An automotive tire pressure monitoring assembly 10 for installation in a vehicle 12 is provided. The automotive tire pressure monitoring assembly 10 includes at least one tire pressure sensor 34 generating a signal based on the pressure of air within a tire 14. The at least one tire pressure sensor 34 further includes a sensor receiver 68 in communication with a sensor control logic 38. The sensor control logic 38 is adapted to receive spectral noise 20 from at least one noise generating assembly 18. The automotive tire pressure monitoring assembly 10 further includes a controller assembly 52 positioned within the vehicle 12 and in remote communication with the at least one tire pressure sensor 34. The automotive tire pressure monitoring assembly 10 includes a positioning logic adapted to determine the position of the at least one tire pressure sensor 34 based on the strength of the spectral noise 20.