[go: up one dir, main page]

WO2013029750A3 - Diagnostic method for an axle drive train - Google Patents

Diagnostic method for an axle drive train Download PDF

Info

Publication number
WO2013029750A3
WO2013029750A3 PCT/EP2012/003462 EP2012003462W WO2013029750A3 WO 2013029750 A3 WO2013029750 A3 WO 2013029750A3 EP 2012003462 W EP2012003462 W EP 2012003462W WO 2013029750 A3 WO2013029750 A3 WO 2013029750A3
Authority
WO
WIPO (PCT)
Prior art keywords
drive train
diagnostic method
oil temperature
axle drive
axle
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2012/003462
Other languages
German (de)
French (fr)
Other versions
WO2013029750A2 (en
Inventor
Matthias Klöpfer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
Daimler AG
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 Daimler AG filed Critical Daimler AG
Priority to EP12746295.0A priority Critical patent/EP2751535A2/en
Publication of WO2013029750A2 publication Critical patent/WO2013029750A2/en
Publication of WO2013029750A3 publication Critical patent/WO2013029750A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/42—Circuits effecting compensation of thermal inertia; Circuits for predicting the stationary value of a temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0405—Monitoring quality of lubricant or hydraulic fluids

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Details Of Gearings (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The invention relates to a diagnostic method for an axle drive train (100) that has at least one axle transmission (1), wherein according to the diagnostic method a simulated oil temperature (Tsim) of an oil of the axle transmission (1, 1') is calculated using an oil temperature prediction algorithm, and a measured oil temperature (T­act) of the oil of the axle transmission (1) is determined by means of at least one temperature sensor (12) arranged in the axle transmission (1). According to the invention, an assessment of a functional state of the axle drive train (100) is carried out on the basis of a comparison of the simulated oil temperature (Tsim) with the measured oil temperature (T­act).
PCT/EP2012/003462 2011-08-30 2012-08-14 Diagnostic method for an axle drive train Ceased WO2013029750A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12746295.0A EP2751535A2 (en) 2011-08-30 2012-08-14 Diagnostic method for an axle drive train

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011111912.8 2011-08-30
DE201110111912 DE102011111912A1 (en) 2011-08-30 2011-08-30 Method for calculating temperature of oil in vehicle axle, particularly rear axle, involves computing heat flow in oil of engine of vehicle as function of engine torque and engine speed

Publications (2)

Publication Number Publication Date
WO2013029750A2 WO2013029750A2 (en) 2013-03-07
WO2013029750A3 true WO2013029750A3 (en) 2013-12-05

Family

ID=45471318

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/003462 Ceased WO2013029750A2 (en) 2011-08-30 2012-08-14 Diagnostic method for an axle drive train

Country Status (3)

Country Link
EP (1) EP2751535A2 (en)
DE (1) DE102011111912A1 (en)
WO (1) WO2013029750A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011111912A1 (en) 2011-08-30 2012-02-02 Daimler Ag Method for calculating temperature of oil in vehicle axle, particularly rear axle, involves computing heat flow in oil of engine of vehicle as function of engine torque and engine speed
DE102019202423A1 (en) * 2019-02-22 2020-08-27 Zf Friedrichshafen Ag Method for determining a point in time for a change in an operating medium of a vehicle transmission
CN110361191B (en) * 2019-07-30 2023-12-19 苏州英特模科技股份有限公司 Efficient test system and test method for electric drive axle power assembly
US11111999B2 (en) 2019-10-01 2021-09-07 Allison Transmission, Inc. Transmission systems to control heat exchangers to manage transmission sump temperature
CN111775627B (en) * 2020-07-07 2022-09-30 阜阳常阳汽车部件有限公司 Truck axle
CN114427598B (en) * 2022-01-04 2024-02-13 中国重汽集团济南动力有限公司 A method, device and vehicle for evaluating the lubrication status of each position of a gearbox
DE102023121452A1 (en) * 2023-08-10 2025-02-13 Wittenstein Se Method for determining a transmission temperature

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60221479T2 (en) * 2001-10-31 2008-04-17 Jtekt Corp., Osaka Method for power distribution and device for controlling the power distribution for vehicle
EP2216568A1 (en) * 2009-02-04 2010-08-11 Toyota Jidosha Kabushiki Kaisha Abnormality determination apparatus and abnormality determination method for oil temperature sensor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006015678A1 (en) 2006-04-04 2007-07-26 Voith Turbo Gmbh & Co. Kg Operating medium e.g. oil, changing time period determining method, involves comparing amount of loss with marginal amount of loss, where amount of loss signals necessary change of medium, while reaching marginal amount of loss
US7747366B2 (en) 2007-02-15 2010-06-29 Gm Global Technology Operations, Inc. Oil temperature prediction and vehicle protection
DE102008026553A1 (en) 2008-06-03 2009-12-10 Magna Powertrain Ag & Co Kg Method for mathematically determining the oil temperature in a coupling unit
DE102011111912A1 (en) 2011-08-30 2012-02-02 Daimler Ag Method for calculating temperature of oil in vehicle axle, particularly rear axle, involves computing heat flow in oil of engine of vehicle as function of engine torque and engine speed

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60221479T2 (en) * 2001-10-31 2008-04-17 Jtekt Corp., Osaka Method for power distribution and device for controlling the power distribution for vehicle
EP2216568A1 (en) * 2009-02-04 2010-08-11 Toyota Jidosha Kabushiki Kaisha Abnormality determination apparatus and abnormality determination method for oil temperature sensor

Also Published As

Publication number Publication date
DE102011111912A1 (en) 2012-02-02
DE102011111912A8 (en) 2012-07-12
WO2013029750A2 (en) 2013-03-07
EP2751535A2 (en) 2014-07-09

Similar Documents

Publication Publication Date Title
WO2013029750A3 (en) Diagnostic method for an axle drive train
WO2014044484A3 (en) Diagnostic method for rail vehicles
WO2012129309A3 (en) Extended smart diagnostic cleat
WO2011031786A3 (en) Compositions and methods for diagnosing autism spectrum disorders
GB201206105D0 (en) An apparatus and method for determining the fuel type of a vehicle
WO2013034698A3 (en) Adhesion determination for a rail vehicle
WO2013009178A3 (en) Method and device for determining the charging behaviour of electric vehicles and a charging system incorporating such a method
WO2012047980A3 (en) Diagnosis and repair for autonomous vehicles
MX2014000669A (en) Transmission-preloading method for measuring and testing a transmission, in particular a double clutch transmission, which has at least two sub-transmissions.
WO2010057623A3 (en) Device and method for a rail vehicle
MX2015008852A (en) Method and system for providing feedback based on driving behavior.
WO2011071432A8 (en) Method for determining the stress free temperature of the rail and/or the track resistance
WO2013014286A3 (en) Means and methods for diagnosing and monitoring heart failure in a subject
WO2009111427A3 (en) Apparatus and method for implementing a mobility aid device
EP2526041A4 (en) Method for monitoring the movement of an elevator car, and an elevator system
WO2011092285A3 (en) Means and methods for diagnosing heart failure in a subject
WO2013052479A3 (en) System and method for traction motor control
WO2012055612A3 (en) Method for charging a hybrid vehicle or electric vehicle
AU2012224470A1 (en) Device and method for investigating, diagnosing, or helping to diagnose, and treating functional vision problems
FR2994259B1 (en) METHOD FOR ESTIMATING THE MASS OF A VEHICLE
WO2013039731A3 (en) Systems and methods for diagnosing an engine
WO2014021961A3 (en) Systems and methods for vehicle survivability planning
WO2013003470A3 (en) System and method for generating vehicle drive cycle profiles
WO2013034717A8 (en) Method for determining an effective amount of an adhesion-increasing medium
WO2012069915A3 (en) Driving operation evaluation apparatus and driving operation evaluation method

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12746295

Country of ref document: EP

Kind code of ref document: A2

REEP Request for entry into the european phase

Ref document number: 2012746295

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2012746295

Country of ref document: EP