EP3183160A1 - Système de direction d'un véhicule à deux voies - Google Patents

Système de direction d'un véhicule à deux voies

Info

Publication number
EP3183160A1
EP3183160A1 EP15744584.2A EP15744584A EP3183160A1 EP 3183160 A1 EP3183160 A1 EP 3183160A1 EP 15744584 A EP15744584 A EP 15744584A EP 3183160 A1 EP3183160 A1 EP 3183160A1
Authority
EP
European Patent Office
Prior art keywords
adjusting rod
coupling member
steering
vehicle
rod parts
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.)
Withdrawn
Application number
EP15744584.2A
Other languages
German (de)
English (en)
Inventor
Matthias Stangl
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP3183160A1 publication Critical patent/EP3183160A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0421—Electric motor acting on or near steering gear
    • B62D5/0424—Electric motor acting on or near steering gear the axes of motor and final driven element of steering gear, e.g. rack, being parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D17/00—Means on vehicles for adjusting camber, castor, or toe-in
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D3/00—Steering gears
    • B62D3/02—Steering gears mechanical
    • B62D3/12—Steering gears mechanical of rack-and-pinion type
    • B62D3/126—Steering gears mechanical of rack-and-pinion type characterised by the rack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/001—Mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup
    • B62D5/003—Backup systems, e.g. for manual steering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
    • B62D7/08—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in a single plane transverse to the longitudinal centre line of the vehicle
    • B62D7/09—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in a single plane transverse to the longitudinal centre line of the vehicle characterised by means varying the ratio between the steering angles of the steered wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/20—Links, e.g. track rods

Definitions

  • the invention relates to a steering system of a two-lane vehicle with a transversely displaceable to the vehicle longitudinal axis control rod, at both ends tie rods are hinged, which act on the steerable wheels of the vehicle, so that they are pivoted with a displacement of the control rod about its steering axis.
  • tie rods are hinged, which act on the steerable wheels of the vehicle, so that they are pivoted with a displacement of the control rod about its steering axis.
  • a (one-piece) control rod which is formed in the so-called rack-and-pinion steering gear rack on the teeth of the driver of the vehicle with his steering handle operated steering spindle acts on a pinion, at least in motor vehicles, especially passenger cars, the generally common Prior art, which is why this is not called a special publication.
  • Also known for steering systems of two-lane vehicles are the so-called.
  • Lenkt trapeze or the Ackermann relationship according to which a certain relationship between the steering angle of the inside wheel and the outside wheel of the vehicle kept as best as possible for joint operation of the two steerable wheels of an axle of a two-lane vehicle should be used to minimize the power requirement and tire wear.
  • the kinematic target curve of the two steerable wheels of an axle can only be hit exactly in two points via a fixed steering trapezoid.
  • the respective wheel steering angle adjusted to each other individually adjusted is such a solution (in the form of a steer-by-wire -Lenkung) not only energy-intensive, but also complex, since appropriate measures for a possible failure even a servo motor are provided.
  • each actuator rod part its own servo motor, in particular electric motor, be assigned for its adjustment.
  • each steerable wheel a separate servo motor (in the present case, the simple control half an electric motor proposed, however, the general principle of the present invention with hydraulic motors or other servomotors representable) can be assigned, so that for each wheel of the steerable Fzg. -Achse individually steering angle are adjustable, but these two steerable wheels are at least temporarily connected to each other via the control rod, so that at a Failure of one of the (two) actuating or electric motors of the other actuator or electric motor can take over its function.
  • the control rod is indeed performed split, but designed so that the first actuator rod part (eg., The left Fzg.
  • each actuator rod part is assigned an independent actuator or electric motor.
  • each own control motor per control rod part is not a mandatory feature, although the present invention is thus particularly easy and comfortable to display for the driver of the vehicle. It is only essential, however, that the adjusting rod is designed to be split and the two adjusting rod parts either supported together or alternatively separated from each other and thus relative to each other in Fzg. -Querraum are displaced.
  • a suitably designed switchable coupling element by means of which - for example actuated or switched by a somehow designed actuator - a said relative movement between the two adjusting rod parts enabling decoupling or alternatively said support mutually enabling coupling or partial coupling of Stellstangen- Parts is displayed.
  • said coupling member between the two adjusting rod parts either with or from at least one adjusting rod part - namely, if a rigid connection between the coupling member and the other adjusting rod part is provided - or with or from both adjusting rod parts in force-transmitting Way either connected or disconnected, said connecting or disconnecting on the said example.
  • an actuator suitably operable coupling element can be displayed.
  • This latter actuator in turn, can be controlled by a suitable electronic control unit as needed.
  • a steering system according to the invention can be displayed when the coupling member via a respective screw thread whose rantmatiachse is the longitudinal axis of the actuating rod is connected to the actuator rod parts and the adjusting rod parts and / or the coupling member is rotatable about this longitudinal axis / are.
  • a steering spindle connected to a steering handle of the driver meshes with the coupling member via a suitable transmission connection, such that a rotation of the steering spindle causes a displacement of the coupling member in the vehicle transverse direction.
  • the coupling member simultaneously transmits a from Driver with his steering wheel predetermined steering on mechanical way (and thus failsafe) in the same way on the two Stellstangen- parts and thus on the steerable Fzg.-wheels, while by a relative rotation between at least one adjusting rod part and the coupling member, the adjusting rods Parts can be relocated relative to each other and thus in different ways in the vehicle transverse direction. For example.
  • the coupling member designed in the manner of a sleeve for this purpose can have, in addition to an internal thread for the connection with the adjusting rod parts, a suitable external thread for the movement-transmitting connection with the said steering spindle;
  • a suitable external thread for the movement-transmitting connection with the said steering spindle can have, in addition to an internal thread for the connection with the adjusting rod parts, a suitable external thread for the movement-transmitting connection with the said steering spindle;
  • each adjusting rod part can be provided with its own support motor which assists the driver during steering and introduces a support torque into the steering system. If these two are preferably controlled differently in terms of a simple controllability preferably designed as electric motors assist motors, so are not complete coupling of the adjusting rod parts on the coupling element easy different steering angle to the two steerable Fzg. Wheels displayed.
  • each said support motor or electric motor or generally servomotor
  • a ball screw on the associated control rod part with or for a (r) displacement thereof acts.
  • no further control element or the like Needed on the coupling member and there is herewith a simple and safe steering system of a two-lane vehicle before, which offers the ability to adjust independently desired steering angle on both wheels can.
  • any suitable adjusting element is provided with the help of which the coupling member in each case desired towards at least one of the Stellstangen- parts shifts is to represent the desired functionality, namely a wheel-individual steering angle adjustment on a two-lane vehicle.
  • a steering system according to the invention can also be designed entirely without the possibility of a mechanical steering intervention by the driver, in which case acting on the coupling member no steering spindle and thus this Coupling member is not displaced by the action of the driver, but only by at least one of the support motors or servo motors.
  • a steering system may be formed on the vehicle's rear axle.
  • the reference numeral 1 in its entirety denotes a control rod displaceable transversely to the longitudinal axis L of a two-lane vehicle (eg passenger car) in its entirety, which consists essentially of three individual parts, namely a first adjusting rod part 1 a, left in the figure representation second in the figure representation right adjusting rod part 1 b and one of these two adjusting rod parts 1a, 1 b interconnecting coupling member 1c.
  • each of the two adjusting rod parts 1 a, 1 b only one with the coupling member 1 c overlapping portion shown and it extends each actuator rod part 1 a, 1 b away from the coupling member 1 c to the right or left outside.
  • Both the coupling member 1 c and the two adjusting rod parts 1 a, 1 b are formed substantially circular cylindrical and have a common in Fzg. -Querraum Q extending cylinder axis or longitudinal axis A or axis of rotation A.
  • Each of the opposite ends of the adjusting rod parts 1 a and 1 b, ie, not shown in the figure left end of the (left) adjusting rod part 1 a and not shown in the figure right end of the (right) adjusting rod part 1 b is known via a track lever or the like. In the expert Way via a tie rod or the like. Connected to a steerable (not shown here) wheel of the vehicle, such that a displacement of the respective adjusting rod part 1a and 1b in vehicle. -Querraum Q pivoting of the respective wheel about the steering axis of rotation (also called the expansion axis) causes.
  • the coupling member 1 c facing end portions of the adjusting rod parts 1 a, 1 b are formed in the form of a sleeve with a circular-cylindrical cross-section, in whose respective inner wall a screw thread G is introduced.
  • this screw thread G is each adjusting rod part 1 a, 1 b supported on the coupling member 1c by this at its two-sided end portions Ca, Cb outside just such a screw thread G and with these end portions Ca, Cb proportionate in the respective sleeve-shaped end portion of the respective adjusting rods Part 1 a, 1b protrudes or is screwed over the screw thread G.
  • the coupling member 1 c On the outer wall of the coupling member 1 c is another suitably shaped thread D is applied in the middle section, with which a figuratively not shown pinion meshes, which is connected via a steering shaft (not shown) with a steering wheel, not shown, the driver of the vehicle.
  • a steering shaft not shown
  • the driver By turning the steering wheel thus the driver can shift the control rod 1 in Fzg. -Querraum Q in the usual way and thus steer the wheels, in the present case, the two adjusting rod parts 1a, 1 b are displaced in the same direction by the means of the said pinion in vehicle-Q direction Q (laterally) displaced coupling member 1c.
  • each actuator rod part 1 a, 1 b is assigned a separate motor motor 2 a and 2 b, respectively, each actuator motor 2 a and 2 b with the associated actuator rod part 1 a and 1 b only symbolically and therefore not shown ball screw 3 is connected.
  • the outer side of each adjusting rod part 1 a, 1 b is thus designed in such a way that the set of the respective servomotor 2a or 2b in motion ball screw 3, the respective adjusting rod part 1 a and 1 b corresponding in Fzg. -Querraum Q relocated.
  • both servomotors 2a, 2b are suitably controlled by an electronic control unit, which knows the driver's steering request, so first, both servomotors 2a, 2b, a same Relocation of the two adjusting rod parts 1 a, 1 b support with their torque. With the same dimensioning on each adjusting rod part 1 a, 1 b then rotate the two same servomotors 2a, 2b at the same speed and each of the servomotors 2a, 2b brings half of the required support torque in the steering system.
  • the two servomotors 2a, 2b rotate at the same dimensions as described above with different speeds, whereupon the two adjusting rod parts 1 a, 1 b are variously in Fzg. -Querraum Q shifted.
  • suitable control of the servomotors 2a, 2b so that compliance with the Ackermann relationship for each steering angle of the vehicle can be displayed.
  • a servomotor (2a, 2b) finally should be ensured by suitable design of the ball screw 3 in conjunction with the screw threads G in the sections Ca, Cb that introduced by means of a single servomotor 1 a or 1 b at least a certain support torque and both Wheels can be steered by the driver via the coupling element 1c as usual.
  • a corresponding steering of the two vehicle wheels alone by the servomotors 2a, 2b without a displacement of the coupling member 1c by the driver is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Power Steering Mechanism (AREA)

Abstract

L'invention concerne un système de direction d'un véhicule à deux voies comprenant une tringle de commande (1) déplaçable transversalement par rapport à l'axe longitudinal du véhicule, aux deux extrémités de laquelle sont articulées des barres d'accouplement qui agissent sur les roues directrices du véhicule, de sorte que celles-ci soient pivotées autour de leur axe de rotation de direction lors d'un déplacement de la tringle de commande (1). La tringle de commande (1) est réalisée en deux parties de tringle de commande (1a, 1b) respectivement associées à une roue, lesquelles sont reliées l'une à l'autre par le biais d'un élément d'accouplement (1c) qui appuie au moins temporairement les deux parties de tringle de commande (1a, 1b) l'une contre l'autre et qui permet au moins temporairement un mouvement relatif des deux parties de tringle de commande (1a, 1b) dans le sens transversal du véhicule. L'élément d'accouplement (1c) est de préférence relié aux parties de tringle de commande (1a, 1b) respectivement par le biais d'un filetage (G) dont l'axe de rotation de vis est l'axe longitudinal de la tringle de commande, et les parties de tringle de commande (1a, 1b) et/ou l'élément d'accouplement (1c) peut/peuvent tourner autour de cet axe longitudinal.
EP15744584.2A 2014-08-19 2015-07-31 Système de direction d'un véhicule à deux voies Withdrawn EP3183160A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014216462.1A DE102014216462A1 (de) 2014-08-19 2014-08-19 Lenksystem eines zweispurigen Fahrzeugs
PCT/EP2015/067623 WO2016026673A1 (fr) 2014-08-19 2015-07-31 Système de direction d'un véhicule à deux voies

Publications (1)

Publication Number Publication Date
EP3183160A1 true EP3183160A1 (fr) 2017-06-28

Family

ID=53762194

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15744584.2A Withdrawn EP3183160A1 (fr) 2014-08-19 2015-07-31 Système de direction d'un véhicule à deux voies

Country Status (5)

Country Link
US (1) US20170144694A1 (fr)
EP (1) EP3183160A1 (fr)
CN (1) CN106536329A (fr)
DE (1) DE102014216462A1 (fr)
WO (1) WO2016026673A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016204560A1 (de) * 2016-03-18 2017-09-21 Ford Global Technologies, Llc Lenksystem für ein lenkbares Fahrzeug
US11939008B2 (en) * 2018-04-25 2024-03-26 Hl Mando Corporation Steer-by-wire type power steering apparatus
EP3782875B1 (fr) * 2019-08-22 2022-07-20 Jtekt Corporation Dispositif de direction et procédé de détection d'anomalie dans un dispositif de direction
DE102020203362A1 (de) 2020-03-17 2021-09-23 Robert Bosch Gesellschaft mit beschränkter Haftung Einzelradlenkung
CN114104091B (zh) * 2020-08-28 2023-05-05 华为技术有限公司 独立转向机构、转向系统及控制方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008003056A1 (de) * 2007-01-10 2008-07-17 Fuji Jukogyo Kabushiki Kaisha Unabhängige Links-Rechts-Lenkvorrichtung zum unabhängigen Lenken eines linken und eines rechten Rades

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19964587B4 (de) * 1999-01-22 2011-06-01 Thyssenkrupp Presta Steertec Gmbh Lenkgetriebe mit redundantem Antrieb und geteilter Zahnstange
DE10114600A1 (de) * 2000-03-27 2002-01-03 Continental Teves Ag & Co Ohg Fahrzeuglenkung und Achslenkmodul für eine Fahrzeuglenkung
JP2001354154A (ja) * 2000-04-13 2001-12-25 Honda Motor Co Ltd 後輪転舵装置
DE10160716A1 (de) * 2001-12-11 2003-06-18 Mercedes Benz Lenkungen Gmbh Lenkung mit angetriebenem Umlaufgetriebe zur Erzeugung eines bestimmten Handmoments am Lenkrad
US7014008B2 (en) * 2002-06-27 2006-03-21 Honda Giken Kogyo Kabushiki Kaisha Steering system for vehicle
CN102101494A (zh) * 2009-12-21 2011-06-22 上海甬龙工贸有限公司 一种用于车架伸缩梁的螺纹锁紧结构
DE102012219888A1 (de) * 2012-10-31 2014-04-30 Schaeffler Technologies Gmbh & Co. Kg Zahnstange für eine Zahnstangenlenkung eines Kraftfahrzeuges
ITTO20130066A1 (it) * 2013-01-28 2014-07-29 Fiat Group Automobiles Spa Sistema di servosterzo elettrico per un autoveicolo

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008003056A1 (de) * 2007-01-10 2008-07-17 Fuji Jukogyo Kabushiki Kaisha Unabhängige Links-Rechts-Lenkvorrichtung zum unabhängigen Lenken eines linken und eines rechten Rades

Also Published As

Publication number Publication date
WO2016026673A1 (fr) 2016-02-25
CN106536329A (zh) 2017-03-22
DE102014216462A1 (de) 2016-02-25
US20170144694A1 (en) 2017-05-25

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