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US 11,598,280 B2Granted
System and method for measuring torque and speed of an axle
AssigneeDana Heavy Vehicle Systems Group, LLC
InventorsPerry M. Paielli, Michael Z. Creech, Jeremy M. Frenznick
Life of this patent
Estimating the term…
Abstract
Methods and systems for estimating an amount of torque that is transferred via a differential ring gear assembly are described. In one example, axial displacement of the differential ring gear assembly is determined and converted into a torque estimate. The torque estimate may be used to verify other powertrain torque estimates or for closed loop torque control.
Claims19
A method for estimating a torque of a powertrain, comprising:
- measuring a distance between a differential ring gear assembly and a sensor in an axial direction via the sensor, where the axial direction is parallel to a longitudinal axis of half shafts of an axle;
- estimating the torque of the powertrain via a controller in response to the distance;
- and
- adjusting torque of a propulsion source in response to the estimated torque of the powertrain.
1 more element
A system for estimating torque transmitted through an axle, comprising:
- an axle including a differential ring gear assembly and two half shafts;
- a propulsion source;
- a non-contact position sensor configured to measure a position of the differential ring gear assembly in an axial direction without touching the differential ring gear assembly, where the axial direction is parallel to a longitudinal direction of the two half shafts;
- and
- a controller with executable, non-transitory instructions to adjust torque of the propulsion source in response to the measured position.
2 more elements
A method for estimating a speed of a powertrain, comprising:
- measuring a distance between a differential ring gear assembly and a sensor in an axial direction via the sensor, where the axial direction is parallel to a longitudinal axis of half shafts of an axle;
- estimating the speed of the powertrain via a controller in response to output of the sensor;
- and
- adjusting the powertrain in response to the estimated speed.
1 more element
Dependencies are inferred from the claim text.