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WO2009101031A1 - Dispositif et procédé pour remplir des éléments de rembourrage gonflables d'un siège de véhicule - Google Patents

Dispositif et procédé pour remplir des éléments de rembourrage gonflables d'un siège de véhicule Download PDF

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Publication number
WO2009101031A1
WO2009101031A1 PCT/EP2009/051364 EP2009051364W WO2009101031A1 WO 2009101031 A1 WO2009101031 A1 WO 2009101031A1 EP 2009051364 W EP2009051364 W EP 2009051364W WO 2009101031 A1 WO2009101031 A1 WO 2009101031A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressor
control unit
control
consumer
pressure
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/EP2009/051364
Other languages
German (de)
English (en)
Inventor
Jens Schrader
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2009101031A1 publication Critical patent/WO2009101031A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/914—Hydro-pneumatic adjustments of the shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B60N2/0248—Non-manual adjustments, e.g. with electrical operation with logic circuits with memory of positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B60N2/0268—Non-manual adjustments, e.g. with electrical operation with logic circuits using sensors or detectors for adapting the seat or seat part, e.g. to the position of an occupant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B60N2/0273—Non-manual adjustments, e.g. with electrical operation with logic circuits taking into account user data, e.g. knee height or physical state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/80—Head-rests
    • B60N2/879—Head-rests with additional features not related to head-rest positioning, e.g. heating or cooling devices or loudspeakers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/976—Details or parts not otherwise provided for massaging systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/40—Force or pressure sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2220/00—Computerised treatment of data for controlling of seats
    • B60N2220/20—Computerised treatment of data for controlling of seats using a deterministic algorithm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2220/00—Computerised treatment of data for controlling of seats
    • B60N2220/30—Computerised treatment of data for controlling of seats using a neural network

Definitions

  • the present invention relates to an apparatus and a method for infiltrating and / or venting air-consuming, in particular inflatable, consumers of vehicle seats of a pneumatic comfort system, such as e.g. inflatable cushioning elements of a vehicle seat.
  • a pneumatic comfort system such as e.g. inflatable cushioning elements of a vehicle seat.
  • pneumatic comfort systems with a central pressure supply have been increasingly installed in vehicles.
  • Such comfort systems can provide, for example, improved lateral support during cornering or perform a massage function in the seat and / or back area.
  • Such pneumatic comfort systems comprise, in addition to a large number of consumers designed as inflatable cushion elements a compressor which generates compressed air, and a compressed air reservoir.
  • the compressed air reservoir is connected via a line in which a pressure control valve is arranged with the consumers.
  • the known systems work with a system pressure in the compressed air reservoir in the range of 1400 to 2000 hPa. Due to the relatively high pressure level condenses the moisture contained in the compressed air, so that a condensate drain is provided by the storage volume.
  • the condensate drain can be opened or closed by means of a valve to drain the condensate.
  • Pressure monitoring of the system pressure takes place by means of a pressure sensor, which is located on the compressor housing.
  • the pressure control valve between the storage volume and the consumers regulates the pressure to a constant supply pressure for the consumer.
  • the compressor in the known comfort systems is thereby operated when the pressure at the reservoir drops below a predetermined target pressure. A pressure requirement of the consumer is always taken from the compressed air reservoir.
  • the device according to the invention for infilling and / or venting consumers requiring air in vehicle seats has the advantage that a complexity of the comfort system can be reduced and, in particular, the costs can be reduced without sacrificing performance.
  • the device according to the invention has a higher overall efficiency, resulting in a lower power consumption results.
  • This is inventively achieved in that the device comprises a compressor, a consumer connected to the compressor via a pneumatic connecting line, in particular an inflatable and deflatable pad element, and a control unit.
  • the control unit performs a demand-driven operation of the compressor, which is based on the air requirement of the consumer.
  • control control unit is connected to a data bus in the vehicle.
  • a control / regulation of the compressor takes place in dependence on signals which the control control unit takes from the data bus. This makes it possible that existing signals in the vehicle are also used to control / regulate the pneumatic comfort system in the vehicle seat.
  • control unit performs a fixed
  • Control program for the compressor when the control unit receives a corresponding predetermined signal is transmitted directly or via the vehicle data bus to the control unit.
  • the predetermined signal for the control-regulating unit is preferably an actuating signal of a switch for switching on or off the pneumatic comfort system in the vehicle seat and / or a signal of a pressure level in the consumer and / or a signal about a yaw condition of the vehicle and / or a signal of a Steering angle of the vehicle, or other, the driving dynamics of the vehicle descriptive characteristics.
  • the device further comprises a pressure sensor, which is arranged directly on the consumer.
  • the pressure sensor is connected to the control unit so that it can always be transmitted a current value of a pressure level at the consumer. It should be noted that the pressure sensor can of course also be used for other control devices.
  • a pressure sensor is arranged directly on the compressor in order to determine a pressure level directly at the compressor. However, this has the disadvantage that this determined directly on the compressor
  • Pressure level does not have to be exactly the actual existing at the consumer pressure level.
  • a pressure of the working medium is between 500 and 900 hPa and in particular at about 700 hPa. This is a significant pressure reduction compared to the known systems in which a pressure level of 1400 to 2000 hPa is used.
  • lowering the pressure of the working medium it is also possible that can be dispensed with a dehumidification of the printing system.
  • an additional device for dehumidification which allows a discharge of condensate from the printing system, can be dispensed with.
  • the pressure reduction also leads to a reduced noise of the compressor. As a result, it is possible in particular to dispense with excessive insulation of the compressor in order to reduce the noise.
  • the pneumatic connection line has a somewhat larger average.
  • the connecting line preferably has a buffering volume of 100 cm 3 to 200 cm 3 .
  • the pneumatic connecting line assumes a certain storage function for the working medium. This ensures that, as soon as a pressure requirement of the pneumatic comfort system is present, the pressure can be at least partially removed from the pneumatic connecting line, so as not to allow any pressure drop until the start of the compressor. Since the compressor starts up in a very short time and generates the necessary pressure, a user notices a difference to a previous comfort system, which takes the pressure from the large storage volume.
  • control unit of the compressor is connected to a control device for the vehicle seat, which controls a filling or emptying of cushioning elements in the vehicle seat. Signals of the controller, which uses this for the control, are thereby also by the control unit of the control
  • Compressor used. As a result, it is possible in particular to resort to an existing infrastructure of the control device of the vehicle seat. This also makes a significant cost reduction possible.
  • the present invention relates to a method for controlling a
  • Compressor for a pneumatic comfort system of a vehicle seat wherein the vehicle seat comprises at least one inflatable and emptied consumer, which is connected by means of a pneumatic connecting line to the compressor.
  • the compressor is directly controlled or regulated as needed as a function of a demand on the consumer. This makes it possible that a direct connection between the compressor and the consumer without the provision of pressure control valves or large storage volume is possible and rapid control / regulation of the pneumatic working fluid in the consumer is possible.
  • a working pressure can also be reduced to a value of about 700 hPa ⁇ 200 hPa.
  • a control / regulation of the compressor by means of the control-regulating unit takes place by means of a pulse width modulation.
  • Figure 1 is a schematic representation of a device according to a first
  • Figure 2 is a schematic representation of a device according to a second
  • the device 1 comprises a compressor
  • a pneumatic comfort system for example for a
  • the device 1 further comprises a control unit 5, which executes a needs-based control of the compressor 2.
  • the control unit 5 is connected to a data bus 7, which is part of a communication network of the vehicle.
  • the reference numeral 8 also denotes a control device for the vehicle seat, which is also connected to the data bus 7.
  • the control unit may also be one which is provided only for controlling the massage function.
  • the control unit 5 of the compressor 2 receives input information directly from the controller 8 of the consumer 3.
  • Such input information can, for example
  • the control unit 5 controls or regulates the compressor 2 then based on the current air demand of the consumer.
  • a delivery rate of the compressor 2 may be, for example, by means of pulse width modulation or another suitable
  • Control algorithm can be varied.
  • the control algorithm can also be designed as a self-learning algorithm, whereby constant adaptations of the control unit 5 to changed output parameters, for example the weight of a person in the vehicle seat, can be adjusted.
  • the comfort system works preferably at a pressure of about 700 hPa.
  • large pressure reduction can be dispensed with in particular an active dehumidification of the comfort system.
  • air is preferably used as the pressure medium.
  • the pneumatic connection line 4 which connects the compressor 2 directly to the consumer 3, thereby assumes a certain pressure accumulator function, which in comparison with the prior art to a reservoir and an additional
  • Pressure control valve can be omitted.
  • a size of the reservoir can be significantly reduced.
  • the reduction of the working pressure also has a significant improvement in the noise of the compressor result.
  • a simple and inexpensive device can be provided, which regulates the compressor power just so that the necessary pneumatic power is provided in the comfort system.
  • Figure 2 shows schematically a device 1 according to a second embodiment of the invention, wherein identical or functionally identical parts are denoted by the same reference numerals as in the first embodiment.
  • control unit 5 of the second embodiment controls the compressor 2 by means of signals directly transmitted from a pressure sensor 9 to the control unit 5.
  • the pressure sensor 9 is arranged in the immediate vicinity of the consumers 3, so that a precise pressure value of the working medium in the immediate vicinity of the consumer for controlling or regulating the compressor 2 is used. This allows a very accurate and fast control or regulation of the
  • control unit 5 may additionally be connected to other sensors or control units already present in the vehicle in order to carry out a control of the compressor 2 on the basis of a plurality of variables.
  • the second Auslanderangsbeispiel corresponds to the previous embodiment, so that reference may be made to the description given there.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un dispositif destiné à gonfler et/ou dégonfler des organes gonflables (3) d'un système de confort pneumatique dans un siège de véhicule. Ledit dispositif comporte un compresseur (2) permettant de mettre sous pression un fluide de travail gazeux, au moins un organe utilisateur (3) qui est disposé dans le siège du véhicule ou sur celui-ci, une conduite de raccordement pneumatique (4) qui raccorde le compresseur (2) à l'organe utilisateur (3), et une unité de régulation-commande (5) pour le compresseur (2) destinée à réguler et/ou à commander le compresseur (2), selon les besoins, en fonction d'une demande de pression de l'organe utilisateur (3).
PCT/EP2009/051364 2008-02-15 2009-02-06 Dispositif et procédé pour remplir des éléments de rembourrage gonflables d'un siège de véhicule Ceased WO2009101031A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008009473A DE102008009473A1 (de) 2008-02-15 2008-02-15 Vorrichtung und Verfahren zum Befüllen von aufblasbaren Fahrzeugsitz-Polsterelementen
DE102008009473.0 2008-02-15

Publications (1)

Publication Number Publication Date
WO2009101031A1 true WO2009101031A1 (fr) 2009-08-20

Family

ID=40456286

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/051364 Ceased WO2009101031A1 (fr) 2008-02-15 2009-02-06 Dispositif et procédé pour remplir des éléments de rembourrage gonflables d'un siège de véhicule

Country Status (2)

Country Link
DE (1) DE102008009473A1 (fr)
WO (1) WO2009101031A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012025306A1 (de) * 2012-12-22 2014-06-26 Daimler Ag Sitzanlage für einen Kraftwagen
DE102016011502A1 (de) 2016-09-21 2018-03-22 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Kompressorsystem für ein Nutzfahrzeug
WO2024165295A1 (fr) * 2023-02-08 2024-08-15 Gentherm Präzision SE Dispositif de coussin d'air et siège doté d'un tel dispositif de coussin d'air et procédé de massage pour appliquer une pulsation à un dispositif de coussin d'air

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168893A (en) * 1984-12-13 1986-07-02 Nhk Spring Co Ltd Pneumatically controlled vehicle seat
WO2000003628A2 (fr) * 1998-07-15 2000-01-27 Rostra Precision Controls, Inc. Systeme de commande electronique pour mecanisme de support variable
EP1710120A2 (fr) * 2005-04-08 2006-10-11 Robert Bosch Gmbh Siège de véhicule automobile ainsi que dispositif et procédé pour remplir et/ou vider des coussins gonflables

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168893A (en) * 1984-12-13 1986-07-02 Nhk Spring Co Ltd Pneumatically controlled vehicle seat
WO2000003628A2 (fr) * 1998-07-15 2000-01-27 Rostra Precision Controls, Inc. Systeme de commande electronique pour mecanisme de support variable
EP1710120A2 (fr) * 2005-04-08 2006-10-11 Robert Bosch Gmbh Siège de véhicule automobile ainsi que dispositif et procédé pour remplir et/ou vider des coussins gonflables

Also Published As

Publication number Publication date
DE102008009473A1 (de) 2009-08-20

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