摘要:
A tire monitor (124, 126, 128, 130) for mounting to a vehicle as part of a remote tire monitoring system (102) includes a tire condition sensor to produce a tire condition signal, a controller (132) coupled to the tire condition sensor to control operation of the tire monitor, and a radio circuit coupled to the controller to transmit radio signals based at least in part on the tire condition signal. A shock sensor is coupled to the controller of the tire monitor to produce a motion signal indicating motion of the tire monitor.
摘要:
A tire monitor (124, 126, 128, 130) for mounting to a vehicle as part of a remote tire monitoring system (102) includes a tire condition sensor to produce a tire condition signal, a controller (132) coupled to the tire condition sensor to control operation of the tire monitor, and a radio circuit coupled to the controller to transmit radio signals based at least in part on the tire condition signal. A shock sensor is coupled to the controller of the tire monitor to produce a motion signal indicating motion of the tire monitor.
摘要:
Provided is a method for attaching a tire pressure sensor (15) to a vehicle tire (16), where an adhesive region is exposed on a tire pressure sensor, and the tire pressure sensor is attached to a tire. The adhesive region is made of a first and second adhesive, where the first adhesive has a short cure time, and the second adhesive has a cure time longer than that of said first adhesive, and an adhesive strength greater than that of said first adhesive. Also provided is an adhesive system for a tire pressure sensor, where an adhesion surface on the tire pressure sensor is made of an outer perimeter and an inner region. The first adhesive has a short cure time, while the second adhesive has a long cure time and an adhesive strength greater than that of the first adhesive. Also provided is a tire sensor that can be mounted to a vehicle wheel, where the tire sensor includes a housing including an adhesion surface, with adhesive material disposed upon the adhesion surface. The adhesive material includes a first, relatively fast curing adhesive and a second, relatively strong operating adhesive. The first adhesive area retains the tire sensor during mounting on a mounting surface of the wheel while the second adhesive area cures to a relatively strong adhesive strength.
摘要:
A tire monitor system ( 100) employs a single RF detector ( 112) mounted on the vehicle. The tire monitor system (100) also includes a control unit ( 110) and a receiver ( 120). The single RF detector ( 112) is positioned to be proximate a front axle or a rear axle. The RF detector (112) also may be positioned off-center. The control unit (110) distinguishes front tire monitors from rear tire monitors by comparing a number of RF transmissions received by each tire monitor. The control unit also may distinguish between left tire monitors and right tire monitors by comparing the number of RF transmissions received by each tire monitor. In other embodiment, the tire monitor system (100) may further use a received signal strength and/or acceleration signals to determine position information of the tire monitors.
摘要:
A remote tire monitor system (102) includes a control unit (112) and a plurality of tire monitors (124, 126, 128, 130) mountable on respective wheels (104, 106, 108, 110) of a vehicle (100) to transmit radio signals to the control unit. The tire monitors each include a pair of motion sensors such as shock sensors (210, 212) and a control circuit (202) configured to determine position information for the respective tire monitor based on first and second shock sensor signals from the pair of shock sensors. The shock sensors produce an output voltage proportional to a change in applied force. Therefore, the offset created by centrifugal force in previously used accelerometers is absent, simplifying design of the tire monitors.
摘要:
A tire characteristic monitoring method allows automatic programming of tire position information in a remote tire pressure monitoring system (10). The method includes, from a remotely located exciter (16) using a primary coil (18) to transmit a relatively low frequency signal to a secondary coil (L1) of a tire monitor (12) associated with a tire of a vehicle. The method further includes the step of, at the tire monitor, in response to the relatively low frequency signal, transmitting a relatively high transmitting signal to convey data. The data are received at the exciter and subsequently loaded into a receiving unit (14) of the vehicle.
摘要:
A tire monitor for use in conjunction with a remote tire monitoring system of a vehicle includes in one embodiment a dual-axis accelerometer and a control circuit. The control circuit determines position information such as the right/left position of the tire monitor on the vehicle in response to an acceleration signal from the dual axis accelerometer. The tire monitor transmits tire data and the position information to a control unit of a remote tire monitor system. The control unit determines additional position information such as front/rear position of the transmitting tire monitor by detecting signal strength of the transmission. This allows the system to automatically re-learn the position of tire monitors on the vehicle, even after tire rotation.
摘要:
A tire characteristic monitoring method allows automatic programming of tire position information in a remote tire pressure monitoring system (10). The method includes, from a remotely located exciter (16) using a primary coil (18) to transmit a relatively low frequency signal to a secondary coil (L1) of a tire monitor (12) associated with a tire of a vehicle. The method further includes the step of, at the tire monitor, in response to the relatively low frequency signal, transmitting a relatively high transmitting signal to convey data. The data are received at the exciter and subsequently loaded into a receiving unit (14) of the vehicle.
摘要:
A remote tire pressure monitoring system includes a sending unit (12) for each monitored tire (T(1),T(2),T(3),T(4)), and the sending units (12) transmit RF signals, each including an identifier ID(i) and a pressure indicator P(i). A receiver (14) operates in a learn mode in which the receiver associates specific identifiers either with the vehicle or with specific tires. During the learn mode the vehicle is driven at a speed above a threshold speed, such as thirty miles an hour, and identifiers are associated with either the vehicle or the respective tires of the vehicle only if they persist for a selected number of signals or frames during the learning period. In one example, the tires are inflated with different pressures according to a predetermined pattern, and the pressure indicators of the receive signals are used to associate individual tire positions with the respective sending units.