Patent ID: 7720587

Claim:
A system for variable calibration of a vehicle transmission using rough road sensing, comprising: computer readable memory that stores a first set of parameters to calibrate the vehicle transmission for a smooth road condition and a second set of parameters to calibrate the vehicle transmission for a rough road condition; a road sensing module that comprises a road sensor that senses a road roughness and generates a road condition signal based on the roughness; a signal processing module that measures a magnitude of the road condition signal; and a control module that switches from the first set of parameters to the second set of parameters when the magnitude of the road condition signal exceeds a first predetermined threshold and from the second set of parameters to the first set of parameters when the magnitude of the road condition signal is less than a second predetermined threshold that is different than the first predetermined threshold, wherein the first set of parameters includes a first gear shift schedule associated with shifting the vehicle transmission to achieve a first fuel consumption rate and the second set of parameters includes a second gear shift schedule associated with shifting the vehicle transmission to achieve a second fuel consumption rate and the first fuel consumption rate is greater than the second fuel consumption rate.