Tire parameter sensing system having a tunable circuit
First Claim
1. A tire parameter sensing system for sensing a parameter of a tire of a vehicle, the tire parameter sensing system comprising:
- a vehicle-based unit for transmitting first signals and for receiving second signals; and
a tire-based unit that is associated with the tire of the vehicle, the tire-based unit being responsive to received first signals for sensing the parameter of the tire and for transmitting second signals indicative of the sensed parameter, an antenna portion of the tire-based unit having an impedance that varies in response to varying environmental conditions, the vehicle-based unit including a tuner and a controller, the controller monitoring a condition of received second signals at various settings of the tuner and thereafter, setting the tuner for maximizing the condition of the received second signals.
1 Assignment
0 Petitions
Accused Products
Abstract
A tire parameter sensing system (10) for a vehicle (12) includes a vehicle-based unit (54) for transmitting first signals and for receiving second signals. A tire-based unit (34) is associated with a tire (16) of the vehicle (12). The tire-based unit (34) is responsive to received first signals for sensing a parameter of the tire (16) and for transmitting second signals indicative of the sensed parameter. An antenna portion (144) of the tire-based unit (34) has an impedance that varies in response to varying environmental conditions. The vehicle-based unit (54) including a tuner (106) and a controller (90). The controller (90) monitors a condition of received second signals at various settings of the tuner (106) and thereafter, sets the tuner (106) for maximizing the condition of the received second signals.
-
Citations
20 Claims
-
1. A tire parameter sensing system for sensing a parameter of a tire of a vehicle, the tire parameter sensing system comprising:
-
a vehicle-based unit for transmitting first signals and for receiving second signals; and
a tire-based unit that is associated with the tire of the vehicle, the tire-based unit being responsive to received first signals for sensing the parameter of the tire and for transmitting second signals indicative of the sensed parameter, an antenna portion of the tire-based unit having an impedance that varies in response to varying environmental conditions, the vehicle-based unit including a tuner and a controller, the controller monitoring a condition of received second signals at various settings of the tuner and thereafter, setting the tuner for maximizing the condition of the received second signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method of operating a tire parameter sensing system of a vehicle, the tire parameter sensing system having a vehicle-based unit and a tire-based unit, the tire-based unit being associated with a tire of the vehicle and including an antenna portion having an impedance that varies in response to varying environmental conditions, the method comprising the steps of:
-
transmitting first signals from the vehicle-based unit;
sensing the parameter of the tire and transmitting second signals in responds to receiving first signals at the tire-based unit;
receiving the transmitted second signal at the vehicle-based unit;
monitoring a condition of second signals received at the vehicle-based unit at various settings of a tuner of the vehicle-based unit; and
thereaftersetting the tuner of the vehicle-based unit for maximizing the condition of the received second signals. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
-
Specification