Vehicle dynamic load estimation system and method
AssigneeThe Goodyear Tire & Rubber Company
InventorsKanwar Bharat Singh, Anthony William Parsons, Marc Engel
Life of this patent
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Abstract
A dynamic load estimation system and method is provided, the system including a tire supporting a vehicle; a vehicle-mounted acceleration sensor for determining a vehicle lateral acceleration and a vehicle longitudinal acceleration; a roll angle calculating model for determining a vehicle roll angle; a roll rate calculating model for determining a vehicle roll rate; a static normal load calculation model for calculating a measured static normal load; and a dynamic tire load estimation model for calculating an estimated dynamic load on the tire from the measured static normal load, the vehicle roll angle, the vehicle roll rate, the vehicle lateral acceleration and the vehicle longitudinal acceleration.
Claims16
A dynamic load estimation system for estimating a vehicle load comprising:
- at least one tire supporting a vehicle;
- a static load measuring sensor mounted to the one tire;
- an acceleration sensor mounted to the vehicle for determining a vehicle lateral acceleration and a vehicle longitudinal acceleration;
- a roll angle calculating means for determining a vehicle roll angle;
- a roll rate calculating means for determining a vehicle roll rate;
- a static normal load calculation means for calculating a measured static normal load from a measured input provided by the tire mounted static load measuring sensor;
- and
- a dynamic tire load estimation means for calculating an estimated dynamic load on the tire from the measured static normal load, the vehicle roll angle, the vehicle roll rate, the vehicle lateral acceleration and the vehicle longitudinal acceleration.
A dynamic load estimation method for estimating a load on a tire supporting a vehicle, comprising:
- mounting acceleration sensor means to the vehicle for measuring a vehicle lateral acceleration and a vehicle longitudinal acceleration;
- mounting a load sensor on the tire for generating a measured static load signal;
- determining a vehicle roll angle;
- determining a vehicle roll rate;
- determining a static normal load on the tire from the measured static load signal;
- and
- applying the static normal load, the vehicle roll angle, the vehicle roll rate, the vehicle lateral acceleration and the vehicle longitudinal acceleration to a dynamic tire load estimation algorithm to yield a load estimation.
Dependencies are inferred from the claim text.