DE102008058152A1 - Spring path determining method for wheel in e.g. commercial motor vehicle, involves detecting set of revolutions of wheel, deriving spring path from detected revolutions and filtering detected revolutions by two high-pass filters - Google Patents

Spring path determining method for wheel in e.g. commercial motor vehicle, involves detecting set of revolutions of wheel, deriving spring path from detected revolutions and filtering detected revolutions by two high-pass filters Download PDF

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Publication number
DE102008058152A1
DE102008058152A1 DE200810058152 DE102008058152A DE102008058152A1 DE 102008058152 A1 DE102008058152 A1 DE 102008058152A1 DE 200810058152 DE200810058152 DE 200810058152 DE 102008058152 A DE102008058152 A DE 102008058152A DE 102008058152 A1 DE102008058152 A1 DE 102008058152A1
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Germany
Prior art keywords
wheel
revolutions
spring
spring path
detected
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DE200810058152
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German (de)
Inventor
Daniel Dipl.-Ing. Keppler
Avshalom Dipl.-Ing. Suissa
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Mercedes Benz Group AG
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Daimler AG
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Priority to DE200810058152 priority Critical patent/DE102008058152A1/en
Publication of DE102008058152A1 publication Critical patent/DE102008058152A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00Resilient 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
    • B60G17/015Resilient 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
    • B60G17/019Resilient 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 type of sensor or the arrangement thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/20Speed
    • B60G2400/208Speed of wheel rotation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/25Stroke; Height; Displacement
    • B60G2400/252Stroke; Height; Displacement vertical
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/17Proportional control, i.e. gain control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/18Automatic control means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/18Automatic control means
    • B60G2600/182Active control means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/18Automatic control means
    • B60G2600/187Digital Controller Details and Signal Treatment
    • B60G2600/1875Other parameter or state estimation methods not involving the mathematical modelling of the vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/60Signal noise suppression; Electronic filtering means
    • B60G2600/602Signal noise suppression; Electronic filtering means high pass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/01Attitude or posture control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/90System Controller type
    • B60G2800/91Suspension Control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/90System Controller type
    • B60G2800/92ABS - Brake Control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/90System Controller type
    • B60G2800/93Skid or slide control [ASR]

Abstract

The method involves detecting a set of revolutions of a wheel and deriving a spring path (3) from the detected set of revolutions. The detected set of revolutions is filtered by two high-pass filters and is multiplied by a factor. Extensiveness of the factor is provided depending on damping adjusted at a chassis. Change of wheel load is determined based on the determined spring path. A determined value of the spring path is used for controlling active damping systems. An independent claim is also included for a device for determining a spring path of a wheel in a vehicle during a drive.

Description

Die Erfindung betrifft ein Verfahren zur Ermittlung eines Federweges eines Rades an einem Fahrzeug während einer Fahrt gemäß dem Oberbegriff des Patentanspruches 1. Des Weiteren betrifft die Erfindung eine Vorrichtung zur Ermittlung eines Federweges eines Rades an einem Fahrzeug während einer Fahrt gemäß dem Oberbegriff des Patentanspruchs 6.The The invention relates to a method for determining a spring travel of a Wheel on a vehicle during a ride in accordance with the The preamble of claim 1. Furthermore, the invention relates a device for determining a spring travel of a wheel a vehicle during a journey according to the Preamble of claim 6.

Zur Verbesserung eines Fahrkomforts von Personen- und/oder Nutzkraftwagen ist die Ausgestaltung eines Fahrwerks von wesentlicher Bedeutung. Bei dem bisher noch überwiegend benutzten passiven Fahrwerken sind die Aufhängungssysteme zwischen einem Fahrzeugaufbau und den Rädern, je nach prognostiziertem Gebrauch des Fahrzeugs, beim Einbau entweder tendenziell hart ("sportlich") oder tendenziell weich ("komfortabel") ausgelegt. Eine Einflussnahme auf eine Fahrwerkcharakteristik ist während der Fahrt bei diesen Systemen nicht möglich.to Improvement of driving comfort of passenger and / or commercial vehicles the design of a chassis is essential. In the still predominantly used passive chassis are the suspension systems between a vehicle body and the wheels, depending on the predicted use of the vehicle Installation tends to be either hard ("sporty") or tending soft ("comfortable") designed. An influence on a chassis characteristic is not possible while driving on these systems.

Bei aktiven Fahrwerken hingegen kann die Fahrwerkcharakteristik während des Fahrbetriebs abhängig von einem vorliegenden Fahrzustand im Sinne einer Steuerung oder Regelung beeinflusst werden.at active chassis, however, the chassis characteristics during the driving operation depending on a present driving condition be influenced in the sense of a control or regulation.

Zur Steuerung oder Regelung eines solchen aktiven Fahrwerks werden die Aufhängungssysteme je nach einem vorliegenden Fahrzustand des Fahrzeugs zur Aufbringung von Kräften zwischen den Rädern und dem Aufbau angesteuert. Hierzu ist es wesentlich, den momentan vorliegenden Fahrzustand des Fahrzeugs möglichst exakt zu erfassen.to Control or regulation of such an active chassis are the Suspension systems depending on a present driving condition the vehicle for applying forces between the Wheels and the structure controlled. For this it is essential the current driving condition of the vehicle possible to capture exactly.

Die möglichst genaue Kenntnis der Bewegungen eines Fahrzeuges ist von elementarer Bedeutung für jede Art von Steuerung oder Regelung, die diesen Bewegungen im Sinne einer Erhöhung des Fahrkomforts und der Fahrsicherheit entgegenwirkt.The the most accurate knowledge of the movements of a vehicle is of fundamental importance for any type of control or regulation governing these movements in order to increase the Driving comfort and driving safety counteracts.

Solch eine Entgegenwirkung kann, wie es in der DE-OS 35 29 178 beschrieben wird, durch ein aktives Federungs- und/oder Dämpfungssystem erreicht werden, dessen Federungs- und/oder Dämpfungsverhalten steuerbar oder regelbar ausgelegt ist.Such a counteraction can, as in the DE-OS 35 29 178 is described, are achieved by an active suspension and / or damping system, the suspension and / or damping behavior is designed controllable or adjustable.

Zur Erfassung des Fahrzustands werden im Allgemeinen für das Fahrverhalten des Fahrzeugs typische Bewegungen sensiert.to Capturing the driving condition will generally be for that Driving behavior of the vehicle senses typical movements.

Die Ursachen der Bewegungen des Fahrzeuges sind im wesentlichen Beschleunigungs- und/oder Bremsvorgänge, Lenkvorgänge und/oder Fahrbahnunebenheiten.The Causes of the movements of the vehicle are essentially acceleration and / or Braking, steering and / or bumps.

Für die Ermittlung der die Querdynamik beschreibenden Größe können als alternative Möglichkeit auch die Federwege der Räder herangezogen werden. Unter dem Begriff "Federwege" werden dabei die relativen Abstände zwischen den Rädern und dem Fahrzeugaufbau verstanden.For the determination of the size describing the lateral dynamics As an alternative option, you can also use the suspension travel the wheels are used. Under the term "suspension travel" are the relative distances between the wheels and understood the vehicle body.

Aus den Federwegen kann eine der Querbeschleunigung entsprechende Größe berechnet werden.Out The spring paths can be a size corresponding to the lateral acceleration be calculated.

Im Stand der Technik werden die Federwege mittels Federwegsensoren gemessen.in the The prior art, the spring travel by spring travel sensors measured.

Der Erfindung liegt die Aufgabe zugrunde, ein gegenüber dem Stand der Technik verbessertes Verfahren und eine verbesserte Vorrichtung zur Ermittlung eines Einfederweges eines Rades an einem Fahrzeug während einer Fahrt anzugeben.Of the Invention is based on the object, a relation to the Prior art improved method and apparatus for determining a compression travel of a wheel on a vehicle indicate during a journey.

Die Aufgabe wird erfindungsgemäß gelöst durch ein Verfahren mit den Merkmalen des Patentanspruchs 1. Hinsichtlich der Vorrichtung wird die Aufgabe erfindungsgemäß durch die im Patentanspruch 6 angegebenen Merkmale gelöst.The The object is achieved by a method having the features of claim 1. Regarding The device according to the invention by the task solved specified in claim 6 features.

Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.advantageous Further developments of the invention are the subject of the dependent claims.

Bei dem erfindungsgemäßen Verfahren zur Ermittlung eines Federweges eines Rades an einem Fahrzeug während einer Fahrt wird eine Drehzahl des Rades erfasst und aus zumindest der erfassten Drehzahl der Federweg abgeleitet.at the method of determination according to the invention a spring travel of a wheel on a vehicle during a ride, a speed of the wheel is detected and off at least derived from the detected speed of travel.

Dadurch kann der Federweg vorteilhafterweise ohne zusätzliche Federwegsensorik ermittelt werden. Dies führt zu einer Kostenersparnis.Thereby can the spring travel advantageously without additional suspension travel sensor be determined. This leads to a cost savings.

Der mittels des erfindungsgemäßen Verfahrens abgeleitete Federweg ist früher verfügbar als das Signal eines Federwegssensors und somit kann ein Steuergerät eines aktiven Fahrwerks schneller auf Unebenheiten auf der Fahrbahn und daraus resultierende Bewegungen eines Fahrzeugaufbaus reagieren.Of the derived by the method according to the invention Travel is available sooner than the signal one Spring travel sensors and thus can be a controller of an active Chassis faster on bumps on the road and from it resulting movements of a vehicle body respond.

In einer günstigen Ausführungsform kann eine Information über den Federweg dazu genutzt werden, um eine Qualität vorhandener Sensorsignale zu verbessern bzw. diese zu plausibilisieren.In In a favorable embodiment, information about used the suspension travel to a quality of existing To improve sensor signals or to make them plausible.

Besonders vorteilhaft ist es, die bereits im Fahrzeug vorhandenen Raddrehzahlsensoren eines Antiblockier- und/oder Antischlupfsystems (ABS und/oder ASR) zur Bestimmung der Drehzahl zu benutzen, soweit solche ABS und/oder ASR-Systeme zur Fahrzeugausstattung gehören.Especially It is advantageous to already present in the vehicle wheel speed sensors an anti-lock and / or anti-slip system (ABS and / or ASR) to use for determining the speed, as far as such ABS and / or ASR vehicle equipment systems.

Ein Ausführungsbeispiel der Erfindung wird anhand einer Zeichnung näher erläutert.An embodiment of the invention will explained in more detail with reference to a drawing.

Dabei zeigt die einzige 1 eine Blockdarstellung einer erfindungsgemäßen Vorrichtung zur Ermittlung eines Federweges eines Rades an einem Fahrzeug während einer Fahrt.The only one shows 1 a block diagram of an inventive device for determining a spring travel of a wheel on a vehicle during a journey.

Die Vorrichtung umfasst einen Drehzahlsensor 1, welcher mit einer Auswerteeinheit 2 verbunden ist und ein Drehzahlsignal an die Auswerteeinheit 2 überträgt.The device includes a speed sensor 1 , which with an evaluation unit 2 is connected and a speed signal to the evaluation 2 transfers.

In der Auswerteeinheit 2 wird anhand einer aus einem Drehzahlsignal des Drehzahlsensors 1 ermittelten Drehzahl ein Federweg bestimmt.In the evaluation unit 2 is determined by one of a speed signal of the speed sensor 1 determined rotational speed determines a spring travel.

Die Auswerteeinheit 2 ist mit einem Steuergerät eines aktiven Fahrwerks 3 verbunden und der in der Auswerteeinheit 2 ermittelte Federweg wird an das Steuergerät des aktiven Fahrwerks 3 übertragen.The evaluation unit 2 is with an active chassis control unit 3 connected and in the evaluation unit 2 determined spring travel is to the control unit of the active chassis 3 transfer.

Der Drehzahlsensor 1 besteht vorzugsweise aus einem bereits im Fahrzeug vorhandenen induktiven Sensor eines ABS und/oder ASR-Systems.The speed sensor 1 preferably consists of an already existing in the vehicle inductive sensor of an ABS and / or ASR system.

Im Betrieb des Fahrzeuges führt eine Fahrbahnanregung zu einem Federn des Rades, dies hat eine Änderung eines Abstandes zwischen einem Fahrzeugaufbau und dem Rad zur Folge. Diese Änderung des Abstandes ist der Federweg – der relative Federweg. Gleichzeitig mit dem Federn des Rades wird auch eine Eindrückung am Reifen stattfinden, welche zu einer Änderung des Rollradius des Rades führt und sich somit in einer Änderung der Raddrehzahlen auswirkt.in the Operation of the vehicle leads a roadway excitation to a Feathers of the wheel, this has a change of a distance between a vehicle body and the wheel result. This change the distance is the spring travel - the relative travel. Simultaneously with the springs of the wheel is also a depression take place on the tire, which leads to a change in the rolling radius of the wheel leads and thus in a change the wheel speeds.

Beim erfindungsgemäßen Verfahren wird in der Auswerteeinheit 2 aus der Drehzahl des Rades der Federweg mittels folgender Formel abgeleitet:

Figure 00040001

δFederweg
= Federweg
k
= Faktor
THP1
= Zeitkonstante des Hochpassfilters 1
s
= Komplexe Frequenzvariable
THP2
= Zeitkonstante des Hochpassfilters 2
ω
= Drehzahl des Rades.
In the method according to the invention is in the evaluation 2 derived from the speed of the wheel of the travel by means of the following formula:
Figure 00040001
δ travel
= Travel
k
= Factor
T HP1
= Time constant of the high-pass filter 1
s
= Complex frequency variable
T HP2
= Time constant of the high-pass filter 2
ω
= Speed of the wheel.

Die Drehzahl ωRAD des Rades wird mittels zweier Hochpassfilter gefiltert und mit dem Faktor k multipliziert.The speed ω RAD of the wheel is filtered by means of two high-pass filters and multiplied by the factor k.

Der erste Hochpassfilter entfernt konstante Anteile aus dem Signal des Drehzahlsensors 1 und der zweite Hochpassfilter entfernt lineare Anteile aus dem Signal des Drehzahlsensors 1, die z. B. durch Bremsen oder Beschleunigen entstehen.The first high-pass filter removes constant components from the signal of the speed sensor 1 and the second high-pass filter removes linear components from the signal of the speed sensor 1 that z. B. caused by braking or acceleration.

Die Zeitkonstanten der Hochpassfilter THP1 und THP2 werden in Versuchen aus Messdaten bestimmt und sind in der Auswerteeinheit 2 fest abgespeichert.The time constants of the high-pass filters T HP1 and T HP2 are determined in experiments from measured data and are in the evaluation unit 2 permanently stored.

Die Größe des Faktors k wird in Abhängigkeit von einer an einem Fahrwerk eingestellten Dämpfung vorgegeben und kann bei einem aktiven Fahrwerk variieren.The Size of the factor k will depend on specified on a chassis damping set and may vary with an active chassis.

Das Steuergerät eines aktiven Fahrwerks 3 kann mittels des in der Auswerteeinheit 2 ermittelten Federweges δFederweg die Dämpfung des Fahrwerkes verstellen und einem Fahrbahnzustand anpassen.The control unit of an active chassis 3 can by means of the in the evaluation 2 determined spring travel δ travel adjust the damping of the chassis and adapt to a road condition.

Es wird beispielsweise anhand des ermittelten Federwegs δFederweg eine Radlaständerung bestimmt. Hierdurch kann eine Kurvenfahrt detektiert werden.For example, a wheel load change is determined on the basis of the ascertained spring travel δ spring travel . As a result, a cornering can be detected.

11
DrehzahlsensorSpeed sensor
22
Auswerteeinheitevaluation
33
Steuergerät eines aktiven Fahrwerkscontrol unit an active chassis

ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • - DE 3529178 [0006] - DE 3529178 [0006]

Claims (7)

Verfahren zur Ermittlung eines Federweges (δFederweg) eines Rades an einem Fahrzeug während einer Fahrt, dadurch gekennzeichnet, dass eine Drehzahl (ωRAD) des Rades erfasst wird und aus zumindest der erfassten Drehzahl (ωRAD) der Federweg (δFederweg) abgeleitet wird.Method for determining a spring travel (δ spring travel ) of a wheel on a vehicle during a journey, characterized in that a rotational speed (ω RAD ) of the wheel is detected and from at least the detected rotational speed (ω RAD ) of the spring travel (δ spring ) is derived , Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die erfasste Drehzahl (ωRAD) mittels zweier Hochpassfilter gefiltert wird und mit einem Faktor (k) multipliziert wird.A method according to claim 1, characterized in that the detected rotational speed (ω RAD ) is filtered by means of two high-pass filters and multiplied by a factor (k). Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Größe des Faktors (k) in Abhängigkeit von einer an einem Fahrwerk eingestellten Dämpfung vorgegeben wird.Method according to claim 2, characterized in that that the size of the factor (k) is dependent specified by a set on a chassis damping becomes. Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass anhand des ermittelten Federwegs (δFederweg) eine Radlaständerung bestimmt wird.Method according to one of the preceding claims, characterized in that based on the determined spring travel (δ spring ) a Radlaständerung is determined. Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass ein ermittelter Wert des Federwegs (δFederweg) für die Ansteuerung von aktiven Dämpfersystemen verwendet wird.Method according to one of the preceding claims, characterized in that a determined value of the spring travel (δ spring travel ) is used for the control of active damper systems. Vorrichtung zur Ermittlung eines Federweges (δFederweg) eines Rades an einem Fahrzeug während einer Fahrt, gekennzeichnet durch mindestens einen Drehzahlsensor (1) und eine Auswerteeinheit (2), die anhand einer aus einem Drehzahlsignal des Drehzahlsensors (1) ermittelten Drehzahl (ωRAD) den Federweg (δFederweg) bestimmt.Device for determining a spring travel (δ travel ) of a wheel on a vehicle during a journey, characterized by at least one rotational speed sensor ( 1 ) and an evaluation unit ( 2 ) based on a speed signal from the speed sensor ( 1 ) determined speed (ω RAD ) the spring travel (δ spring ) determined. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass als Drehzahlsensor (1) ein induktiver Sensor eines ABS-Systems verwendet wird.Apparatus according to claim 7, characterized in that as a speed sensor ( 1 ) an inductive sensor of an ABS system is used.
DE200810058152 2008-11-20 2008-11-20 Spring path determining method for wheel in e.g. commercial motor vehicle, involves detecting set of revolutions of wheel, deriving spring path from detected revolutions and filtering detected revolutions by two high-pass filters Withdrawn DE102008058152A1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015011517B3 (en) * 2015-09-03 2016-09-08 Audi Ag Method for determining a current level position of a vehicle
US9828031B2 (en) 2014-03-22 2017-11-28 Audi Ag Motor vehicle and rear-end module therefor
DE102018217992A1 (en) * 2018-10-22 2020-04-23 Zf Friedrichshafen Ag Method for operating an actuator of an active chassis device and active chassis device
CN111923914A (en) * 2019-05-13 2020-11-13 大众汽车有限公司 Identification of the shoulder driving of a motor vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529178A1 (en) 1984-08-14 1986-02-27 Honda Giken Kogyo K.K., Tokio/Tokyo CONTROL DEVICE FOR A WHEEL SUSPENSION

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529178A1 (en) 1984-08-14 1986-02-27 Honda Giken Kogyo K.K., Tokio/Tokyo CONTROL DEVICE FOR A WHEEL SUSPENSION

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9828031B2 (en) 2014-03-22 2017-11-28 Audi Ag Motor vehicle and rear-end module therefor
DE102015011517B3 (en) * 2015-09-03 2016-09-08 Audi Ag Method for determining a current level position of a vehicle
CN106494172A (en) * 2015-09-03 2017-03-15 奥迪股份公司 Method for determining the current horizontal location of vehicle
US10239379B2 (en) 2015-09-03 2019-03-26 Audi Ag Method for determining an actual level of a vehicle
CN106494172B (en) * 2015-09-03 2019-09-13 奥迪股份公司 Method for determining the current horizontal location of vehicle
DE102018217992A1 (en) * 2018-10-22 2020-04-23 Zf Friedrichshafen Ag Method for operating an actuator of an active chassis device and active chassis device
CN111923914A (en) * 2019-05-13 2020-11-13 大众汽车有限公司 Identification of the shoulder driving of a motor vehicle
EP3738851A1 (en) * 2019-05-13 2020-11-18 Volkswagen Ag Detection of a motor vehicle driving onto the hard shoulder
CN111923914B (en) * 2019-05-13 2023-12-01 大众汽车有限公司 Identification of road shoulder travel of motor vehicle

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