FR2729344A1 - AUTOMATIC TRANSMISSION MANAGEMENT METHOD - Google Patents

AUTOMATIC TRANSMISSION MANAGEMENT METHOD Download PDF

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Publication number
FR2729344A1
FR2729344A1 FR9500482A FR9500482A FR2729344A1 FR 2729344 A1 FR2729344 A1 FR 2729344A1 FR 9500482 A FR9500482 A FR 9500482A FR 9500482 A FR9500482 A FR 9500482A FR 2729344 A1 FR2729344 A1 FR 2729344A1
Authority
FR
France
Prior art keywords
mode
driver
transmission
automatic transmission
management method
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Withdrawn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
FR9500482A
Other languages
French (fr)
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.)
GUICHARD PHILIPPE JEAN CLAUDE
Original Assignee
GUICHARD PHILIPPE JEAN CLAUDE
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 GUICHARD PHILIPPE JEAN CLAUDE filed Critical GUICHARD PHILIPPE JEAN CLAUDE
Priority to FR9500482A priority Critical patent/FR2729344A1/en
Priority to PCT/FR1996/000064 priority patent/WO1996021813A1/en
Priority to AU45435/96A priority patent/AU4543596A/en
Publication of FR2729344A1 publication Critical patent/FR2729344A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/08—Range selector apparatus
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/08—Range selector apparatus
    • F16H2059/082—Range selector apparatus with different modes
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/14—Inputs being a function of torque or torque demand
    • F16H59/18—Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/14—Inputs being a function of torque or torque demand
    • F16H59/18—Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal
    • F16H59/20—Kickdown
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/44—Inputs being a function of speed dependent on machine speed of the machine, e.g. the vehicle
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/21—Providing engine brake control

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

An automatic transmission control method using a driver-actuated ergonomically designed control for switching, when driving, between at least two forward control modes D and B, where mode D is the default mode. When the driver selects mode B, and if an acceleration has been started and completed, then the transmission switches back to mode D. The method enhances the amenity in use of this kind of transmission and in fact improves its automatism.

Description

La présente invention concerne les véhicules automobiles; plus particulièrement cette invention concerne un procédé de gestion des transmissions automatiques. The present invention relates to motor vehicles; more particularly this invention relates to a method for managing automatic transmissions.

Les transmissions automatiques connues possèdent un sélecteur de fonctions, en général sous la forme deun levier prenant plusieurs positions ; ces positions correspondent à des états de la transmission, ou des modes différents pour le même état. Ces positions sont en général nombreuses, par exemple P,R,N,D,3,2,1 ou P,R,N,D,D' ou encore P,R,N,D,L. Known automatic transmissions have a function selector, generally in the form of a lever taking several positions; these positions correspond to transmission states, or different modes for the same state. These positions are generally numerous, for example P, R, N, D, 3,2,1 or P, R, N, D, D 'or even P, R, N, D, L.

P signifie parking, R marche arrière, N neutre (point mort),
D marche avant normale, 3,2,1 sont des vitesses imposées, D' ou L sont des modes de marche avant alternatifs.P means parking, R reverse, N neutral (neutral),
D normal forward, 3,2,1 are set speeds, D 'or L are alternative forward modes.

Des systèmes mettent à la disposition du conducteur une commande ergonomique directe - que l'on nommera (C) - de sélection dun mode plus "court" n - que lon nommera B -, qui évite le recours au sélecteur principal. Cette commande ergonomique fonctionne généralement en bascule entre les mode D (par défaut) et B. La sélection du mode B fait immédiatement rétrograder. Systems provide the driver with a direct ergonomic command - which will be called (C) - for selecting a "shorter" mode n - which will be called B -, which avoids the need for the main selector. This ergonomic command generally works in toggle between mode D (default) and B. Selecting mode B immediately makes a demotion.

Pour les transmissions modernes, la gestion de la transmission est confiée à un logiciel, intégré à un calculateur numérique ou à logique floue. For modern transmissions, the management of the transmission is entrusted to software, integrated into a digital computer or fuzzy logic.

Le recours au mode B est en général motivé par l'une des raisons suivantes
- le conducteur désire accélérer dans un avenir proche; ou
- le conducteur désire plus de frein moteur pour décélérer; ou
- le conducteur désire plus de réactivité pour une période donnée.The use of mode B is generally motivated by one of the following reasons
- the driver wishes to accelerate in the near future; or
- the driver wants more engine brake to decelerate; or
- the driver wants more reactivity for a given period.

Dans les deux premiers cas, après lbaccélération ou la décélération qui ont motivé le basculement vers le mode B, le conducteur est contraint de donner un ordre de rebasculement vers le mode par défaut D. In the first two cases, after the acceleration or deceleration which motivated the switch to mode B, the driver is forced to give a command to switch back to default mode D.

L'objet de la présente invention est d'éviter au conducteur d'avoir à rebasculer vers le mode par défaut D au moins dans un certain nombre de cas, à l'image de la commande du clignotant qui revient toute seule dans certaines conditions. The object of the present invention is to avoid the driver having to switch back to the default mode D at least in a certain number of cases, like the flashing control which returns all by itself under certain conditions.

Le procédé de gestion de transmission automatique selon l'invention, qui utilise une commande ergonomique actionnable par le conducteur pour basculer en route au moins deux modes de gestion D et B de la marche avant, le mode D étant le mode par défaut, est caractérisé en ce que, à la suite de la sélection du mode B par le conducteur, si une accélération a débuté et s'est achevée, alors la transmission rebascule vers le mode D. The automatic transmission management method according to the invention, which uses an ergonomic control actuatable by the driver to switch on the road at least two modes of management D and B of the forward gear, mode D being the default mode, is characterized in that, following the selection of mode B by the driver, if an acceleration has started and ended, then the transmission switches back to mode D.

De même façon, si une phase de freinage moteur a débuté et s'est achevée, c'est à dire si une accélération franche a suivi la décélération, alors la transmission rebascule vers le mode D. Likewise, if an engine braking phase has started and ended, i.e. if a sharp acceleration has followed the deceleration, then the transmission will switch back to mode D.

Le procédé permet de limiter le nombre de cas où le conducteur doit signaler de lui-même la fin de la pertinence du mode B au système de gestion de la transmission : en effet, dans les cas ou l'événement qui a motivé le basculement vers le mode B a pu être détecté, le retour est automatique. L'objet de l'invention est atteint. The method makes it possible to limit the number of cases in which the driver must himself signal the end of the relevance of mode B to the transmission management system: in fact, in the cases or the event which motivated the switch to mode B could be detected, the return is automatic. The object of the invention is achieved.

On décrit maintenant un mode de réalisation de la partie physique permettant de supporter le procédé de gestion ; dans ce mode de réalisation, la commande ergonomique est constituée par une pédale d'accélérateur à double action : une impulsion latérale permettant la commutation des mode D et B.. Le reste de la transmission automatique est d'un type quelconque connu. Le dispositif matériel de gestion est un calculateur numérique ou à logique floue de type connu. Le procédé lui-même est réalisé par logiciel. We will now describe an embodiment of the physical part making it possible to support the management method; in this embodiment, the ergonomic control consists of a double-action accelerator pedal: a lateral pulse enabling the switching of modes D and B. The rest of the automatic transmission is of any known type. The hardware management device is a digital or fuzzy logic computer of known type. The process itself is carried out by software.

Le procédé selon l'invention est destiné aux véhicules de tourisme ainsi qu'aux véhicules industriels. I1 permet d'améliorer l'agrément d'utilisation de ce type de transmission, et en fait de parfaire l' automatisme.  The method according to the invention is intended for passenger vehicles as well as for industrial vehicles. I1 improves the approval of use of this type of transmission, and in fact perfect the automation.

Claims (2)

RHVHNDICATIONSRHVHNDICATIONS -1- Procédé de gestion de transmission automatique utilisant une commande ergonomique actionnable par le conducteur pour basculer en route au moins deux modes de gestion D et B de la marche avant, le mode D étant le mode par défaut, caractérisé en ce que, à la suite de la sélection du mode B par le conducteur, si une accélération a débuté et s'est achevée, alors la transmission rebascule vers le mode D. -1- Automatic transmission management method using an ergonomic control actuatable by the driver to switch on the road at least two modes of management D and B of forward gear, mode D being the default mode, characterized in that, at Following the selection of mode B by the driver, if an acceleration has started and ended, then the transmission switches back to mode D. -2- Procédé de gestion de transmission automatique utilisant une commande ergonomique actionnable par le conducteur pour basculer en route au moins deux modes de gestion D et B de la marche avant, le mode D étant le mode par défaut, caractérisé en ce que, à la suite de la sélection du mode B par le conducteur, si une phase de freinage moteur a débuté et s'est achevée, c'est à dire si une accélération franche a suivi la décélération, alors la transmission rebascule vers le mode D.  -2- Automatic transmission management method using an ergonomic control actuatable by the driver to switch on the road at least two modes of management D and B of forward travel, mode D being the default mode, characterized in that, at Following the selection of mode B by the driver, if an engine braking phase has started and ended, i.e. if a frank acceleration has followed deceleration, then the transmission will switch back to mode D.
FR9500482A 1995-01-13 1995-01-13 AUTOMATIC TRANSMISSION MANAGEMENT METHOD Withdrawn FR2729344A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR9500482A FR2729344A1 (en) 1995-01-13 1995-01-13 AUTOMATIC TRANSMISSION MANAGEMENT METHOD
PCT/FR1996/000064 WO1996021813A1 (en) 1995-01-13 1996-01-15 Automatic transmission control method
AU45435/96A AU4543596A (en) 1995-01-13 1996-01-15 Automatic transmission control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9500482A FR2729344A1 (en) 1995-01-13 1995-01-13 AUTOMATIC TRANSMISSION MANAGEMENT METHOD

Publications (1)

Publication Number Publication Date
FR2729344A1 true FR2729344A1 (en) 1996-07-19

Family

ID=9475204

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9500482A Withdrawn FR2729344A1 (en) 1995-01-13 1995-01-13 AUTOMATIC TRANSMISSION MANAGEMENT METHOD

Country Status (3)

Country Link
AU (1) AU4543596A (en)
FR (1) FR2729344A1 (en)
WO (1) WO1996021813A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350234A (en) * 1979-02-02 1982-09-21 Nissan Motor Co., Ltd. Automatic transmission system provided with a function of engine brake
DE3139838C2 (en) * 1981-10-07 1995-11-30 Bosch Gmbh Robert Control device for an automatic transmission in a motor vehicle
US5022286A (en) * 1988-04-11 1991-06-11 Nissan Motor Co., Ltd. System for and method of controlling shifting in gear position in automatic transmission
FR2704809B1 (en) * 1993-05-07 1995-08-11 Guichard Philippe AUTOMATIC GEARBOX CONTROL AND MANAGEMENT DEVICE.
DE4323620C2 (en) * 1993-07-15 1995-05-18 Daimler Benz Ag Control device for an automatic switching device of a gear change transmission in a motor vehicle

Also Published As

Publication number Publication date
WO1996021813A1 (en) 1996-07-18
AU4543596A (en) 1996-07-31

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