CZ308117B6 - A method for estimating the slope of the adhesion characteristic of a rail vehicle at a working point and apparatus for the method - Google Patents

A method for estimating the slope of the adhesion characteristic of a rail vehicle at a working point and apparatus for the method

Info

Publication number
CZ308117B6
CZ308117B6 CZ2019-526A CZ2019526A CZ308117B6 CZ 308117 B6 CZ308117 B6 CZ 308117B6 CZ 2019526 A CZ2019526 A CZ 2019526A CZ 308117 B6 CZ308117 B6 CZ 308117B6
Authority
CZ
Czechia
Prior art keywords
estimated
value
adhesion characteristic
angular velocity
torque
Prior art date
Application number
CZ2019-526A
Other languages
Czech (cs)
Other versions
CZ2019526A3 (en
Inventor
Miroslav Lev
Jiří Zdeněk
Jan Bauer
Lubomír Koucký
Jiří Pavelka
Petr Pichlík
Ondřej Zoubek
Original Assignee
České vysoké učení technické v Praze
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by České vysoké učení technické v Praze filed Critical České vysoké učení technické v Praze
Priority to CZ2019-526A priority Critical patent/CZ2019526A3/en
Publication of CZ308117B6 publication Critical patent/CZ308117B6/en
Publication of CZ2019526A3 publication Critical patent/CZ2019526A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
    • B61C15/08—Preventing wheel slippage
    • B61C15/12—Preventing wheel slippage by reducing the driving power

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

Method of estimating the inclination of the adhesion characteristic of a rail vehicle at a working point includes:- generating instantaneous values of the estimated torque (Tδ) so that the estimated torque (T) has a DC component proportional to the input parameter (T) and an AC component proportional to the periodic excitation signal (Δ). By digital processing, the value of the estimated torque module (MTest) and the value of the estimated phase shift (P) of the torque relative to the synchronization signal (Sync) are obtained, and- obtaining instantaneous angular velocity (ω) values of the traction motor or driven axle or driven wheel. By digital processing, the value of the estimated angular velocity module (Mωest) and the value of the estimated phase shift (P) of the angular velocity (ω) relative to the synchronization signal (Sync) are obtained.By subtracting (P) - (P), the difference (ΔP) of the phase shifts on the mechanical part of the drive is obtained, which is proportional to the estimated slope (best) of the adhesion characteristic due to its non-linearity.A device for carrying out this method is also designed.
CZ2019-526A 2019-08-10 2019-08-10 A method for estimating the slope of adhesion of a rail vehicle at a working point and apparatus for the method CZ2019526A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CZ2019-526A CZ2019526A3 (en) 2019-08-10 2019-08-10 A method for estimating the slope of adhesion of a rail vehicle at a working point and apparatus for the method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ2019-526A CZ2019526A3 (en) 2019-08-10 2019-08-10 A method for estimating the slope of adhesion of a rail vehicle at a working point and apparatus for the method

Publications (2)

Publication Number Publication Date
CZ308117B6 true CZ308117B6 (en) 2020-01-08
CZ2019526A3 CZ2019526A3 (en) 2020-01-08

Family

ID=69140748

Family Applications (1)

Application Number Title Priority Date Filing Date
CZ2019-526A CZ2019526A3 (en) 2019-08-10 2019-08-10 A method for estimating the slope of adhesion of a rail vehicle at a working point and apparatus for the method

Country Status (1)

Country Link
CZ (1) CZ2019526A3 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0469002A (en) * 1990-07-03 1992-03-04 Railway Technical Res Inst Control method for inverter electric vehicle
US20080116739A1 (en) * 2005-04-28 2008-05-22 Siemens Transportation Systems Gmbh & Co. Kg Adaptive Antiskid Means for Rail Vehicles with a Slip Controller
CN103245610A (en) * 2013-05-17 2013-08-14 清华大学 Method for estimating pavement peak attachment coefficients of distributed driving electric vehicle
WO2017175108A1 (en) * 2016-04-05 2017-10-12 Faiveley Transport Italia S.P.A. Method for controlling and possibly recovering the adhesion of the wheels of a controlled axle of a railway vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0469002A (en) * 1990-07-03 1992-03-04 Railway Technical Res Inst Control method for inverter electric vehicle
US20080116739A1 (en) * 2005-04-28 2008-05-22 Siemens Transportation Systems Gmbh & Co. Kg Adaptive Antiskid Means for Rail Vehicles with a Slip Controller
CN103245610A (en) * 2013-05-17 2013-08-14 清华大学 Method for estimating pavement peak attachment coefficients of distributed driving electric vehicle
WO2017175108A1 (en) * 2016-04-05 2017-10-12 Faiveley Transport Italia S.P.A. Method for controlling and possibly recovering the adhesion of the wheels of a controlled axle of a railway vehicle

Also Published As

Publication number Publication date
CZ2019526A3 (en) 2020-01-08

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Legal Events

Date Code Title Description
MM4A Patent lapsed due to non-payment of fee

Effective date: 20230810