Patent ID: 11904959
Assignee: ZF ACTIVE SAFETY AND ELECTRONICS US LLC
Field: Measurement (Instruments)
Classification: CPC B  G  H | IPC B  G  H

Claim 11:
12. A method comprising:
providing an excitation, having a known frequency, to a series RC network, comprising a water-sensitive capacitor and positioned within an electronic power steering assembly, the series RC network providing an output in response to the excitation and being configured such that a difference between a first gain of the series RC network when no water is present at the water-sensitive capacitor and a second gain of the series RC network when water is present at the water-sensitive capacitor is maximized at the excitation frequency;
generating, from the output of the series RC network, an output representing an amplitude of the output of the series RC network; and
determining if water is present within the electronic power steering assembly from the amplitude of the output of the series RC network.