Vehicle condition estimating device
First Claim
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1. A vehicle motion controlling device, wherein the device comprises:
- a vehicle weight estimating unit estimating a vehicle weight value and a stability factor value;
a data memory unit storing a relation between a front wheel axle load and a front wheel cornering power and a relation between a rear wheel axle load and a rear wheel cornering power; and
a vehicle longitudinal centroid position estimating unit estimating a centroid position in a longitudinal direction of the vehicle based on the vehicle weight value, the stability factor value, the relation between the front wheel axle load and the front wheel cornering power and the relation between the rear wheel axle load and the rear wheel cornering power,wherein the vehicle motion controlling device controls the vehicle in accordance with the estimated centroid position.
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Abstract
There is provided a vehicle condition estimating device which enables the estimations of the longitudinal position of a vehicle centroid, loads exerted on front and rear wheel axles and cornering powers even during the running of a vehicle without detecting directly the loads exerted on front and rear wheel axles. The inventive device is characterized by estimating a centroid position in the longitudinal direction of a vehicle based on a vehicle weight value, a stability factor value, a relation between a front wheel axle load and a front wheel cornering power and a relation between a rear wheel axle load and a rear wheel cornering power.
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Citations
11 Claims
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1. A vehicle motion controlling device, wherein the device comprises:
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a vehicle weight estimating unit estimating a vehicle weight value and a stability factor value; a data memory unit storing a relation between a front wheel axle load and a front wheel cornering power and a relation between a rear wheel axle load and a rear wheel cornering power; and a vehicle longitudinal centroid position estimating unit estimating a centroid position in a longitudinal direction of the vehicle based on the vehicle weight value, the stability factor value, the relation between the front wheel axle load and the front wheel cornering power and the relation between the rear wheel axle load and the rear wheel cornering power, wherein the vehicle motion controlling device controls the vehicle in accordance with the estimated centroid position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification