PATENTSCOPE will be unavailable a few hours for maintenance reason on Tuesday 19.11.2019 at 4:00 PM CET
Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (US20130131934) Vehicle speed estimator and traction control device

Office : United States of America
Application Number: 13740954 Application Date: 14.01.2013
Publication Number: 20130131934 Publication Date: 23.05.2013
Grant Number: 08694212 Grant Date: 08.04.2014
Publication Kind : B2
IPC:
B60R 22/00
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
R
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
22
Safety belts or body harnesses in vehicles
Applicants: Uematsu Koji
Komatsu Ltd.
Hatake Kazuhiro
Nomura Azumi
Inventors: Uematsu Koji
Hatake Kazuhiro
Nomura Azumi
Agents: Fish & Richardson P.C.
Priority Data: 2009-002777 08.01.2009 JP
Title: (EN) Vehicle speed estimator and traction control device
Abstract: front page image
(EN)

A vehicle speed estimator includes a unit that selects a minimum rotation speed among rotation speeds of wheels detected by a rotation speed detector and calculates a reference wheel speed of a construction vehicle at every predetermined time. The unit includes: a variable filter processor that performs a low-pass filter processing to the minimum rotation speed, the variable filter processor having a variable time constant; and a time constant changer that changes the time constant of the variable filter processor in accordance with travel conditions of the construction vehicle.


Also published as:
EP2374680JPWO2010079705US20110257847JP2012192919JP2012192920EP2581287
EP2581288US20130131935CN102171085CN103342127CN103350700WO/2010/079705