Method for estimating velocity for vehicles

• Main Authors: KIM HYUN SOO, KO SUNG YEON, LEE SANG MOON
• Format: Patent
• Language: Chinese; English
• Published: 18.09.2013
• Subjects: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL

The invention relates to a method for calculating velocity for vehicles, comprising the steps of measuring the accelerated speed for a vehicle; estimating the accelerated speed for a vehicle; using a variable quality based on the inclination and weight change of the vehicle when the difference value between the accelerated speed measured and the accelerated speed estimated is above a set value, and compensating the accelerated speed estimated to estimate the vehicle speed; estimating the vehicle speed by means of the set standard quality when the difference value between the accelerated speed measured and the accelerated speed estimated is below the set value. Accordingly, when the speed of a vehicle driven by wheel hubs is estimated, the accuracy can be improved, and the emergent brake performance can be increased.