Method and circuit for detecting a short circuit of a resolver exciter line to ground or to the operating voltage

B Lechner, D Raichle, D Zirkel… - US Patent 10,359,467, 2019 - Google Patents
(57) ABSTRACT A method for detecting a short circuit (10) of a resolver exciter line (11, 12)
comprising the steps of: measuring (31) the excitation voltage (U (t:) for the resolver (16) at a …

Adaptive resolver envelope diagnostic

BJ Gallert, W Wang - US Patent 11,802,913, 2023 - Google Patents
A diagnostic system for a resolve of a motor and a method of diagnosing the resolver. The
diagnostic system includes an x-phase winding, a y-phase winding, and a processor. The x …

Diagnostic device for a sensor for a vehicle drive shaft

Y Leroy, T Bavois - US Patent 12,092,488, 2024 - Google Patents
A diagnostic device for a sensor for measuring the position of a motor-vehicle drive shaft.
The sensor includes a first wired communication link and a second wired communication …

System and Method for Monitoring a Failsafe Function of Sensors in a Motor

U Nolte, J Spannberger - US Patent App. 17/793,997, 2023 - Google Patents
G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE;
ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A …

High frequency voltage injection-based cable swap detection

S Li, W Xu, J Wang, MW Degner - US Patent 10,723,294, 2020 - Google Patents
A vehicle includes a controller programmed to, responsive to injecting a high frequency
voltage signal to an electric machine, determine an estimated negative sequence current …