Torque sensor performance diagnostic systems and methods
First Claim
1. A control system, comprising:
- a polarity determination module that determines an expected polarity of a torque signal of a torque sensor that indicates a torque of a transmission; and
a torque sensor diagnostic module that diagnoses an error of the torque sensor when a detected polarity of said torque signal is opposite from said expected polarity.
8 Assignments
0 Petitions
Accused Products
Abstract
A control system may include a polarity determination module, a torque variation module, and a torque sensor diagnostic module. The polarity determination module determines a first polarity of a torque signal that indicates a transmission torque. The torque sensor diagnostic module diagnoses an error of a torque sensor when an detected polarity of the torque signal is opposite from the first polarity. A control system may include a torque variation module and a torque sensor diagnostic module. The torque variation module determines a maximum torque variation during a predetermined diagnostic period based on the torque signal. The torque sensor diagnostic module diagnoses an error of a torque sensor when the maximum torque variation is outside of a torque variation range. The torque variation range is defined by a minimum torque variation threshold and a maximum torque variation threshold.
27 Citations
9 Claims
-
1. A control system, comprising:
-
a polarity determination module that determines an expected polarity of a torque signal of a torque sensor that indicates a torque of a transmission; and a torque sensor diagnostic module that diagnoses an error of the torque sensor when a detected polarity of said torque signal is opposite from said expected polarity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
Specification