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US 10,119,985 B2Granted
Multi-function speed sensor
AssigneeAisin Technical Center of America, Inc.
InventorCorey Zwegers
Life of this patent
Estimating the term…
Abstract
A smart sensor system and method for a vehicle are described. The smart sensor includes at least one sensing element installed on a suspension of the vehicle and coupled with a wheel of the vehicle, and a digital signal processing circuitry configured to receive signal from the at least one sensing element in the form of a digital signal, correlate the digital signal to an air gap data, and determine a vehicle speed, a vehicle acceleration, a suspension condition, a tire condition, a brake condition, a wheel condition, and a road condition.
Claims10
A smart sensor for a vehicle, comprising:
- a rotating component coupled to a wheel of the vehicle, the rotating component having a plane of rotation;
- at least one magnetic sensing element installed on a suspension of the vehicle and separated by an air gap from the plane of rotation such that the air gap changes over time as the suspension flexes, the at least one magnetic sensing element outputting a signal corresponding to the air gap and the sensing element;
- and
- circuitry configured to
- receive the signal from the at least one magnetic sensing element,
- determine air gap data based on the signal,
- perform frequency analysis of the air gap data, and
- determine whether the vehicle has at least one of a wheel wobble and a brake wobble based on the air gap data and the frequency analysis of the air gap data.
5 more elements
Dependencies are inferred from the claim text.