Tire pressure estimation
First Claim
1. A method for estimating the pneumatic pressure of a tire on a vehicle, comprising the steps of:
- receiving as an input a vehicle status sensor signal;
estimating first parameter values of an adaptive filter based on a predetermined model on the vehicle status dependent on the vehicle status sensor signal;
calculating, dependent on said first model parameter values, a first tire pressure indication value (δ
) being dependent on and indicative of the pneumatic pressure of the tire.
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Accused Products
Abstract
A method, computer program product and apparatus for estimating the pneumatic pressure of a tire on a vehicle, comprising the steps of: receiving as an input a vehicle status sensor signal; estimating first parameter values of an adaptive filter based on a predetermined model on the vehicle status dependent on the vehicle status sensor signal; calculating, dependent on said first model parameter values, a first tire pressure indication value (δ) being dependent on and indicative of the pneumatic pressure of the tire. Specifically, the vehicle status signal may be an input a wheel angular velocity signal (1) and a lateral movement indication signal; the adaptive filter is based on a predetermined model on lateral vehicle dynamics dependent on the angular velocity of said wheel and the lateral movement of said vehicle.
37 Citations
19 Claims
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1. A method for estimating the pneumatic pressure of a tire on a vehicle, comprising the steps of:
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receiving as an input a vehicle status sensor signal;
estimating first parameter values of an adaptive filter based on a predetermined model on the vehicle status dependent on the vehicle status sensor signal;
calculating, dependent on said first model parameter values, a first tire pressure indication value (δ
) being dependent on and indicative of the pneumatic pressure of the tire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification