Method of estimating quantities that represent state of vehicle

Details Method of estimating quantities that represent state of vehicle Method of estimating quantities that represent state of vehicle

2005-02-08

2005-02-08

Zanelli, Michael J. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

C701S071000, C701S074000, C180S197000

Reexamination Certificate

active

06853886

ABSTRACT:
A method is provided capable of improving the precision of estimating a vehicle body sideslip angle and values associated with the vehicle body sideslip angle using a simple and inexpensive method. The sideslip angle differential value unit calculates a vehicle body sideslip angle differential value by substituting a front wheel cornering power, which varies depending on the lateral acceleration output from the lateral acceleration sensor, detected values of the sensors, fixed physical quantities of the vehicle and known values, and the vehicle body sideslip angle calculated during the previous processing into a formula obtained by eliminating the rear wheel cornering power from an equation of equilibrium for the moment of the vehicle around the vertical axis and the equation of equilibrium for the force in the lateral direction of the vehicle.

REFERENCES:
patent: 4872116 (1989-10-01), Ito et al.
patent: 5711023 (1998-01-01), Eckert et al.
patent: 6015192 (2000-01-01), Fukumura
patent: 6128569 (2000-10-01), Fukushima
patent: 6456920 (2002-09-01), Nishio et al.
patent: 11 78933 (1999-03-01), None

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