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US 10,399,393 B1Granted
Radar sensor system for tire monitoring
AssigneeInfineon Technologies AG
InventorSaverio Trotta
Life of this patent
Estimating the term…
Abstract
A system includes a millimeter-wave radar sensor circuit configured to be fastened to a wheel having a tire, and a controller. The millimeter-wave radar sensor circuit is configured to transmit a radio-frequency (RF) signal towards a portion of an inner surface of the tire and receive a reflected signal from the tire. The controller is configured to process the reflected signal, determine a property value of the tire based on processing the reflected signal, and generate and transmit a first signal representative of the property value of the tire.
Claims25
A system comprising:
- a millimeter-wave radar sensor circuit configured to be fastened to a wheel having a tire, the millimeter-wave radar sensor circuit configured to:
- transmit a radio-frequency (RF) signal towards a portion of an inner surface of the tire, and
- receive a reflected signal from the tire;
- and
- a controller configured to:
- process the reflected signal by determining a difference between the reflected signal and a predetermined expected reflected signal,
- determine a property value of the tire based on processing the reflected signal, and
- generate and transmit a first signal representative of the property value of the tire.
5 more elements
A system comprising:
- a millimeter-wave radar sensor circuit configured to be fastened to a wheel having a tire, the millimeter-wave radar sensor circuit configured to:
- transmit a radio-frequency (RF) signal towards a portion of an inner surface of the tire, and
- receive a reflected signal from the tire;
- and
- a controller configured to:
- process the reflected signal,
- determine a property value of the tire based on processing the reflected signal, and
- generate and transmit a first signal representative of the property value of the tire, wherein the millimeter-wave radar sensor circuit is configured to be fastened to the wheel so as to avoid rotating with the wheel.
5 more elements
A system comprising:
- a millimeter-wave radar sensor circuit configured to be fastened to a wheel having a tire, the millimeter-wave radar sensor circuit configured to:
- transmit a radio-frequency (RF) signal towards a portion of an inner surface of the tire, and
- receive a reflected signal from the tire;
- and
- a controller configured to:
- process the reflected signal,
- determine a property value of the tire based on processing the reflected signal,
- generate and transmit a first signal representative of the property value of the tire, and determine a rotational speed of the tire based on processing the reflected signal.
5 more elements
A system comprising:
- a millimeter-wave radar sensor circuit configured to be fastened to a wheel having a tire, the millimeter-wave radar sensor circuit configured to:
- transmit a radio-frequency (RF) signal towards a portion of an inner surface of the tire, and
- receive a reflected signal from the tire;
- and
- a controller configured to:
- process the reflected signal,
- determine a property value of the tire based on processing the reflected signal,
- generate and transmit a first signal representative of the property value of the tire, and determine a distance between the millimeter-wave radar sensor circuit and a road surface based on processing the reflected signal.
5 more elements
A system comprising:
- a millimeter-wave radar sensor circuit configured to be fastened to a wheel having a tire, the millimeter-wave radar sensor circuit configured to:
- transmit a radio-frequency (RF) signal towards a first portion of an inner surface of the tire, and
- receive a reflected signal from the tire;
- a controller configured to:
- process the reflected signal,
- determine a property value of the tire based on processing the reflected signal, and
- generate and transmit a first signal representative of the property value of the tire;
- and
- a second millimeter-wave radar sensor circuit configured to be fastened to the wheel, the second millimeter-wave radar sensor circuit configured to:
- transmit an RF signal towards a second portion of the inner surface of the tire, and
- receive a reflected signal from the tire, wherein the first portion of the inner surface of the tire partially overlaps with the second portion of the inner surface of the tire.
8 more elements
A method for tire monitoring, the method comprising:
- transmitting a radio-frequency (RF) signal from an inside of a wheel and towards an inner surface of a tire disposed on a rim of the wheel using a millimeter-wave radar sensor circuit;
- receiving a reflected signal from the tire;
- processing the reflected signal by determining a difference between the reflected signal and a predetermined expected reflected signal;
- determining a property value of the tire based on processing the reflected signal;
- and
- generating a signal representative of the property value of the tire.
3 more elements
A millimeter-wave radar configured to be fastened to a wheel having a tire, the millimeter-wave radar comprising:
- a millimeter-wave radar sensor circuit comprising a front-end radio-frequency (RF) circuit configured to be coupled to a first antenna, the millimeter-wave radar sensor circuit configured to transmit via the first antenna an RF signal towards an inner surface of the tire and receive a reflected signal from the tire;
- a controller coupled to the millimeter-wave radar sensor circuit;
- and
- a wireless interface coupled to the controller and configured to be coupled to a second antenna, the wireless interface configured to transmit data associated with the reflect signal via the second antenna to a processor, wherein the controller or the processor is configured to:
- process the reflected signal by determining a difference between the reflected signal and a predetermined expected reflected signal,
- determine a property value of the tire based on processing the reflected signal, and
- generate and transmit a first signal representative of the property value of the tire.
4 more elements
Dependencies are inferred from the claim text.