IN2014DN06726A - - Google Patents

Info

Publication number
IN2014DN06726A
IN2014DN06726A IN6726DEN2014A IN2014DN06726A IN 2014DN06726 A IN2014DN06726 A IN 2014DN06726A IN 6726DEN2014 A IN6726DEN2014 A IN 6726DEN2014A IN 2014DN06726 A IN2014DN06726 A IN 2014DN06726A
Authority
IN
India
Prior art keywords
wheel
gain
wheels
wheel speeds
road surface
Prior art date
Application number
Inventor
Tsuyoshi Yoshimi
Shingo Koumura
Original Assignee
Toyota Motor Co Ltd
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 Toyota Motor Co Ltd filed Critical Toyota Motor Co Ltd
Publication of IN2014DN06726A publication Critical patent/IN2014DN06726A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/12—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to parameters of the vehicle itself, e.g. tyre models
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/018—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/20—Speed
    • B60G2400/202—Piston speed; Relative velocity between vehicle body and wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/25—Stroke; Height; Displacement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/28—Wheel speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mathematical Physics (AREA)
  • Transportation (AREA)
  • Vehicle Body Suspensions (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)
  • Regulating Braking Force (AREA)

Abstract

The heights of vehicles can be inexpensively estimated by: detecting wheel speeds representing the speed of each wheel (step ST11); performing a frequency analysis of the detected wheel speeds of pairs of left and right wheels and calculating the respective wheel speed characteristics of the left and right wheels at a gain specific frequency (step ST12); calculating the difference in gain between the left and right wheel speeds on the basis of the calculated wheel speed characteristics of the left and right wheels (step ST13); and estimating the height of a vehicle on the basis of the correlation between the wheel heights with respect to the bodies of the wheels and values based the wheel speeds and a road surface inputs inputted from a road surface to the vehicle wheels (i.e. wheel speed/road surface input gain) and the difference in gain between the left and right wheel speeds (step ST14).
IN6726DEN2014 2012-02-16 2012-02-16 IN2014DN06726A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/053726 WO2013121569A1 (en) 2012-02-16 2012-02-16 Vehicle height estimation device and vehicle height estimation method

Publications (1)

Publication Number Publication Date
IN2014DN06726A true IN2014DN06726A (en) 2015-05-22

Family

ID=48983726

Family Applications (1)

Application Number Title Priority Date Filing Date
IN6726DEN2014 IN2014DN06726A (en) 2012-02-16 2012-02-16

Country Status (9)

Country Link
US (1) US9221469B2 (en)
EP (1) EP2815904B1 (en)
JP (1) JP5811260B2 (en)
CN (1) CN104125890B (en)
AU (1) AU2012369763B2 (en)
BR (1) BR112014019970B1 (en)
IN (1) IN2014DN06726A (en)
RU (1) RU2579258C1 (en)
WO (1) WO2013121569A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013110954A1 (en) * 2013-10-02 2015-04-02 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Determining a ride height of a motor vehicle
JP6003931B2 (en) 2014-03-11 2016-10-05 トヨタ自動車株式会社 Vehicle state estimation device, vehicle control device, and vehicle state estimation method
JP6394300B2 (en) * 2014-11-10 2018-09-26 株式会社デンソー Lane keep control system
JP6245217B2 (en) * 2015-05-19 2017-12-13 トヨタ自動車株式会社 Vehicle state quantity estimation device
JP6607229B2 (en) * 2017-05-11 2019-11-20 トヨタ自動車株式会社 Vehicle attitude control device
US10745021B2 (en) 2018-06-22 2020-08-18 Ford Global Technologies, Llc Methods and apparatus to estimate a suspension displacement
CN113661100B (en) * 2019-04-09 2024-05-14 沃尔沃卡车集团 Method for estimating the wheelbase length of a trailer of a vehicle combination comprising more than one articulation angle
CN115325923A (en) * 2022-06-28 2022-11-11 中国第一汽车股份有限公司 Vehicle height calibration processing method and device and computer readable storage medium

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DE3637984A1 (en) * 1986-11-07 1988-05-19 Bayerische Motoren Werke Ag METHOD FOR INFLUENCING A VEHICLE SUSPENSION DEPENDING ON THE ROAD DESIGN AND VEHICLE SUSPENSION
JP2541353B2 (en) * 1990-09-18 1996-10-09 三菱自動車工業株式会社 Active suspension system for vehicles
JPH0648139A (en) * 1992-07-24 1994-02-22 Toyota Motor Corp Suspension behavior detecting device and suspension control device
US5497325A (en) * 1992-08-31 1996-03-05 Fuji Jukogyo Kabushiki Kaisha Suspension control system for a vehicle
JPH06122332A (en) * 1992-10-09 1994-05-06 Nippondenso Co Ltd Slip control device for vehicle
JP3036292B2 (en) * 1993-03-22 2000-04-24 トヨタ自動車株式会社 Vehicle body vertical movement state detection device
EP1158804A3 (en) * 2000-05-24 2003-12-17 Matsushita Electric Industrial Co., Ltd. Rendering device for generating a display image
FR2832801B1 (en) * 2001-11-28 2004-02-27 Peugeot Citroen Automobiles Sa METHOD FOR EVALUATING THE INSTANTANEOUS FREQUENCY OF A MECHANICAL EXCITATION EXERCISED ON A WHEEL OF A MOTOR VEHICLE, AND APPLICATIONS
JP4306484B2 (en) 2004-02-12 2009-08-05 トヨタ自動車株式会社 Vehicle equipped with vehicle height detection device
JP4274189B2 (en) * 2006-02-13 2009-06-03 トヨタ自動車株式会社 Vehicle control system
JP4935573B2 (en) * 2007-08-10 2012-05-23 トヨタ自動車株式会社 Suspension characteristics estimation device
JP4539694B2 (en) * 2007-08-28 2010-09-08 トヨタ自動車株式会社 Vehicle height adjustment device
KR20090107334A (en) * 2008-04-08 2009-10-13 주식회사 만도 Apparatus for controlling a vehicle electronically and method therefor
JP2010188801A (en) 2009-02-17 2010-09-02 Toyota Motor Corp Center of gravity position estimating device for vehicle
JP5045707B2 (en) * 2009-05-28 2012-10-10 トヨタ自動車株式会社 Traveling apparatus, control method thereof, and control program
US8670909B2 (en) * 2009-07-14 2014-03-11 Ford Global Technologies, Llc Automotive vehicle
WO2013145015A1 (en) * 2012-03-29 2013-10-03 トヨタ自動車株式会社 Road surface state estimation apparatus
US8788146B1 (en) * 2013-01-08 2014-07-22 Ford Global Technologies, Llc Adaptive active suspension system with road preview

Also Published As

Publication number Publication date
US20150046033A1 (en) 2015-02-12
RU2579258C1 (en) 2016-04-10
WO2013121569A1 (en) 2013-08-22
JPWO2013121569A1 (en) 2015-05-11
EP2815904B1 (en) 2020-04-22
US9221469B2 (en) 2015-12-29
CN104125890B (en) 2016-08-24
BR112014019970B1 (en) 2021-06-29
JP5811260B2 (en) 2015-11-11
AU2012369763B2 (en) 2015-10-01
EP2815904A4 (en) 2017-01-25
EP2815904A1 (en) 2014-12-24
AU2012369763A1 (en) 2014-09-04
CN104125890A (en) 2014-10-29
BR112014019970A2 (en) 2017-06-13

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