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

Claim 15:
16. A method comprising:
providing an excitation, having a known frequency, to a first series RC network, comprising a water-sensitive capacitor and positioned within an electronic power steering assembly, and a second series RC network, comprising a capacitor with a substantially constant capacitance, each of the first series RC network and the second series RC network providing respective outputs in response to the excitation;
generating, from the output of the first series RC network, an output representing an amplitude of the output of the first series RC network;
generating, from the output of the second series RC network, an output representing an amplitude of the output of the second series RC network;
determining if the output of the first series RC network is valid from the output of the second series RC network; and
determining if water is present within the electronic power steering assembly from the amplitude of the output of the first series RC network.