WIRELESS WHEEL SPEED SENSOR
First Claim
Patent Images
1. A sensor component configured to sense a speed of a motor vehicle wheel, comprising:
- a sensor configured to provide one or more readings indicative of the speed of the wheel;
conditioning circuitry operatively coupled to the sensor and configured to condition the readings taken by the sensor into a data gram indicative of the speed of the wheel; and
a transmitter operatively coupled to the conditioning circuitry and configured to wirelessly transmit the data gram;
an antenna operatively coupled to the transmitter to facilitate transmission of the data gram; and
a power supply operatively coupled to the sensor, conditioning circuitry and transmitter to provide operating power thereto.
1 Assignment
0 Petitions
Accused Products
Abstract
In accordance with one or more aspects of the present invention, a wireless sensing system is disclosed, where the system has particular application to sensing the speed of a vehicle wheel, for example. To sense wheel speed, a sensing unit senses changes in magnetic flux and wirelessly relays a signal indicative thereof back to a base station or control unit.
-
Citations
19 Claims
-
1. A sensor component configured to sense a speed of a motor vehicle wheel, comprising:
-
a sensor configured to provide one or more readings indicative of the speed of the wheel; conditioning circuitry operatively coupled to the sensor and configured to condition the readings taken by the sensor into a data gram indicative of the speed of the wheel; and a transmitter operatively coupled to the conditioning circuitry and configured to wirelessly transmit the data gram; an antenna operatively coupled to the transmitter to facilitate transmission of the data gram; and a power supply operatively coupled to the sensor, conditioning circuitry and transmitter to provide operating power thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A sensing system for wirelessly sensing wheel speed in a motor vehicle, comprising:
-
a sensor component configured to sense wheel speed, the sensor component, comprising; a sensor configured to provide one or more readings indicative of a speed of a wheel, the sensor being situated on a vehicle chassis near a wheel bearing and configured to sense the wheel speed by sensing changes in magnetic flux developed from a magnetic source operatively associated with the rotating wheel; conditioning circuitry operatively coupled to the sensor and configured to condition the readings taken by the sensor into data grams indicative of the speed of the wheel, and to associate identification data with the data grams indicative of the wheel whose speed is being sensed; and a first transceiver operatively coupled to the conditioning circuitry and configured to wirelessly transmit the data gram; a first antenna operatively coupled to the first transceiver to facilitate transmission of the data gram; and a power supply operatively coupled to the sensor, conditioning circuitry and transmitter to provide operating power thereto; and a control module component configured to receive and utilize wireless transmissions from the sensor component, the control module component comprising; a second transceiver configured to receive wireless transmissions from the sensor, and to transmit control signals; and a second antenna operatively coupled to the second transceiver to facilitate transmissions and receptions made thereby. - View Dependent Claims (13, 14)
-
-
15. A method of sensing the speed of a wheel of a motor vehicle, comprising:
-
sensing changes in magnetic flux as the wheel rotates; conditioning the sensed changes into a data gram; and wirelessly transmitting the data gram to a control component, wherein the control component causes a wheel sensor component to run a self diagnostic after the wheel has not rotated for a predefined period of time, and further causes the wheel sensor component to enter a power conservation mode if the self diagnostic reveals no defects in the operation of the sensor component. - View Dependent Claims (17, 18, 19)
-
-
16. (canceled)
Specification