EP4448332A1 - Integriertes steuerungssystem für einen kraftfahrzeugsitz - Google Patents
Integriertes steuerungssystem für einen kraftfahrzeugsitzInfo
- Publication number
- EP4448332A1 EP4448332A1 EP22822041.4A EP22822041A EP4448332A1 EP 4448332 A1 EP4448332 A1 EP 4448332A1 EP 22822041 A EP22822041 A EP 22822041A EP 4448332 A1 EP4448332 A1 EP 4448332A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control system
- motor vehicle
- microcontroller
- vehicle seat
- housing
- 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- Withdrawn
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
-
- 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
- B60N2/02246—Electric motors therefor
-
- 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
Definitions
- the disclosure relates to a control system for a motor vehicle seat.
- Control systems are designed to regulate and control a wide variety of functions of the motor vehicle seat.
- the control systems receive input signals relating to a seating position.
- Another control system takes on tasks such as a ventilation function and a massage function.
- Another control system takes over the control of warning functions, for example in the form of vibrations or sounds from a lane departure warning system or distance warning system.
- the control systems are connected to an on-board network of a motor vehicle in a signal-transmitting and power-current-transmitting manner.
- a cost-effective vehicle seat is to be provided.
- a control system for controlling a motor vehicle seat, having a programmable microcontroller for storing and executing a control program and a housing for mechanically holding a valve block on which pressure connections for pneumatically actuated elements are arranged, as well as an electrical control device on which line connections for electrically actuated elements are arranged, wherein the valve block and the control device are controlled by the microcontroller.
- the control system is a logical and structural summary of the functions of an automotive seat.
- the microcontroller converts commands into control signals that are sent to the elements.
- the actuating signals can be output in various forms of energy, for example pneumatically or electrically.
- the mechanical mount does not hermetically separate the components arranged on the housing from the environment. Rather, gas exchange for cooling the components on the housing is generally possible, either through openings or because there are no sides of the housing, as a result of which the housing is a support plate in the simplest case.
- Valves are located in the valve block, which establish a fluid-conducting connection or interruption between a pressure supply and the pneumatic elements as required.
- the pneumatic elements can be connected to the valve block in a fluid-conducting manner via the pressure connections.
- the control device contains transistors, ICs, possibly further microcontrollers and relays for the electrical connection and disconnection of a power supply with electrically adjustable components.
- the control device can be electrically conductively connected to the respective electrical
- valve block and the control device for electrical components are spatially and, in particular, logically separated from one another. Warning actuators are also controlled separately.
- different control devices and microcontrollers are required for one and the same vehicle seat. This is already evident from the fact that the components and functions can be ordered separately by the customer. According to the disclosure, all of the components required for the regulation and control of the motor vehicle seat are now arranged in a control system.
- the microcontroller is also arranged in the housing. This creates a compact unit that is insensitive to electromagnetic pulses.
- electrical warning actuators are also arranged on the housing, which are designed to convert an electrical signal into a haptic signal. Due to the rapid response time, the warning actuators are usually electrically driven.
- the warning actuators can also be arranged in or at least on the housing, so that the number of parts can be kept low when assembling the seat and assembly steps can be omitted. Production costs can be saved as a result.
- pneumatic lordosis supports are fluidly connected to the pressure connections. This enables the lordosis supports to be integrated into the control system.
- pneumatically actuated side walls are connected to the pressure connections in a fluid-conducting manner.
- a position and possibly a rigidity of the side walls can be controlled by the microcontroller.
- a frequency and individual control of the massage pads can be implemented by the microcontroller.
- electric motors for actuating an electrical adjustment of a backrest, a seat surface and a headrest are electrically connected to the line connections.
- the electric motors can be controlled by the control device, which is controlled by the microcontroller.
- the electric motors can have gears connected to them and can be self-locking, so that they maintain their position even when there is no current under load from an occupant and due to acceleration.
- the pneumatic actuators return to their original shape under load when the pressure decreases.
- a ventilation function, a seat occupancy function and a seat heating and air conditioning function can also be integrated in the control system and controlled with the microcontroller.
- a seat occupancy function is usually carried out using a touch-sensitive mat or by determining an electrical capacitance.
- a seat heating function is usually carried out via electric heating mats.
- An air conditioning function is usually carried out by fans integrated in the motor vehicle seat.
- a motor vehicle seat for a motor vehicle schematically in a side view, with a control system in which various functions of the motor vehicle seat are integrated;
- FIG. 2 shows a schematic front view of a seat surface of a motor vehicle seat for a motor vehicle, with a control system and electrical and pneumatic components of the motor vehicle seat connected thereto;
- FIG. 3 shows a schematic of a control system and components of a motor vehicle seat connected thereto
- FIG. 4 shows a schematic of a control system with connections for electrical and pneumatic components of a motor vehicle seat.
- FIG. 1 schematically shows a motor vehicle seat 20 of a motor vehicle, which is otherwise not shown, in a side view.
- the motor vehicle seat 20 has a seat surface 21 and a backrest 22 .
- Elements of the motor vehicle seat 20 can be adjusted via electric motors 23 .
- an inclination of the backrest 22 can be adjusted.
- the motor vehicle seat can be adjusted in the longitudinal direction X and in height Z via an electric motor 23 .
- adjustable side panels 24 are provided on the backrest 22 .
- Adjustable side panels 25 are also provided on the seat surface 21 .
- the side panels 24, 25 can be flexibly locked in various positions by a pneumatic actuator 26, which exerts a force via compressed air.
- a compressed air cushion in the pneumatic actuator 26 provides compliance.
- the electric motors 23 and their active devices (gears) lock the components of the motor vehicle seat as a rule rigid and unyielding so that the seat can only be moved via the electric motors 23 and gears connected to them.
- the electric motors 23 are not specified in more detail. Linear motors or rotary motors can be used, although linear motors are rarely used in seats.
- massage pads 27 are incorporated at least on the backrest 22, usually under a non-illustrated resilient layer of spring elements and a seat pad.
- the massage pads 27 can be formed from individual cushions that can be pressurized with compressed air and emptied simultaneously or independently of one another. This allows a massage function to be implemented.
- a ventilation unit not shown, can promote through a seat cover.
- Pneumatic lordosis supports 29 are also arranged in the area of the backrest 22 . These are embedded air cushions that can be pressurized with compressed air via pressure lines.
- warning actuators 28 are elements driven by an electric motor for outputting a haptic signal (vibration or impact).
- the warning actuators 28 are actuated when the driver is to be made aware of an event, for example by a distance control system or a lane departure warning system.
- Both the massage pads 27, the electric motors 23 for adjusting the motor vehicle seat 20, the warning actuators 28, the pneumatic lordosis supports 29 and the pneumatic actuators 26 are centrally regulated and controlled by a control system 10.
- the regulation takes place in an integrated microprocessor based on data and signals that can be specified by the motor vehicle or the occupants.
- the control takes over the implementation of the regulation on the electric motors 23, pneumatic actuators 26, massage pads 27 and warning actuators 28, so that the setpoint values entering the control system 10 are realized by corresponding actual values.
- the control system 10 is shown schematically in FIG.
- the control system 10 has a programmable microcontroller 15 for storing and executing a control program.
- the control system 10 is arranged in a housing 13 .
- the housing 13 can be open; in the simplest case, it can be a plate on which the components are attached.
- the housing 13 is used for mechanical Holding together a valve block 11 on which pressure connections 12 for the pneumatic actuators 26 and the pneumatic lordosis supports 29 are arranged, and an electrical control device 14 on which line connections 16 for the electric motors 23 and the warning actuators 28 are arranged. Both the valve block 11 and the electrical control device 14 are controlled by the microcontroller 15 .
- the control system 10 can be supplied with electrical energy in a manner that is not shown, for example via an on-board network of the motor vehicle.
- the control device 14 can have power transistors or relays for supplying electrical current to the electric motors 23 and the warning actuators 28 .
- the valve block 11 can be supplied with compressed air via a pump 16 to control the pneumatic elements.
- the control device 14 can have power transistors or relays for supplying electrical current to the pump 16 in order to activate it.
- the pump 16 conveys air with a specific pressure ratio to the valve block 11 as required.
- Valves (not shown) in the valve block 11 are designed to establish a fluid-conducting connection from the pump 16 to the respective pneumatic actuators 26 to be controlled for the side walls 24 , 25 , the massage pads 28 and the pneumatic lordosis supports 29 .
- the valve block 11 is designed to allow pressure to escape from the pneumatic actuators 26 for the side walls 24, 25, the pneumatic lordosis supports 29 or the massage pads 28 in order to reset them.
- Pressure connections 12 for the fluid-conducting connection of the pneumatically actuated elements 24, 25, 26, 27, 29 are arranged on the valve block 11.
- Line connections 17 for the current-conducting connection of the electrically actuated elements 21 , 22 , 30 are arranged on the control device 14 , the valve block 11 and the control device 14 being controlled by the microcontroller 15 .
- pneumatic lordosis supports 29 are connected to the pressure connections 12 in a fluid-conducting manner.
- pneumatically actuated side walls 24, 25 are fluidly connected to the pressure connections 12 assigned to them.
- pneumatic massage pads 27 are connected to the respective pressure connections 12 in a fluid-conducting manner.
- the electric motors 23 for actuating an electrical adjustment of a backrest 22, a seat surface 21 and a headrest 30 are electrically connected to the line connections 17. These elements can be controlled via the microcontroller 15, so to speak.
- the microcontroller 15 can be integrated into an on-board network via a CAN bus system (not shown). be connected and from there receive and process a wide variety of commands and use them to effect the positions and functions of elements 20 to 30.
- lumbar supports (not shown) driven by an electric motor, which could also be controlled by the control system 10 according to the invention with minor adjustments.
- massage functions driven by electric motors, which could also be driven by the control device 10 according to the invention with minor adjustments.
- microcontroller 15 is likewise arranged in housing 13 .
- the warning actuators which are designed to convert an electrical signal into a haptic signal, can be arranged directly on or even in the housing 13 .
- the haptic signal can be output in the form of a vibration or a jolt and in particular can draw the driver's attention to an event.
- the microcontroller 15 is also arranged in the housing 13 .
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021214302.4A DE102021214302A1 (de) | 2021-12-14 | 2021-12-14 | Integriertes Steuerungssystem für einen Kraftfahrzeugsitz |
| PCT/EP2022/083093 WO2023110351A1 (de) | 2021-12-14 | 2022-11-24 | Integriertes steuerungssystem für einen kraftfahrzeugsitz |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4448332A1 true EP4448332A1 (de) | 2024-10-23 |
Family
ID=84487667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22822041.4A Withdrawn EP4448332A1 (de) | 2021-12-14 | 2022-11-24 | Integriertes steuerungssystem für einen kraftfahrzeugsitz |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4448332A1 (de) |
| DE (1) | DE102021214302A1 (de) |
| WO (1) | WO2023110351A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU9587098A (en) | 1998-02-20 | 1999-09-06 | Sand Therapeutic, Inc. | Therapeutic support for the reduction of decubitus ulcers |
| US6203105B1 (en) | 1999-08-20 | 2001-03-20 | Mccord Winn Textron Inc. | Vehicle impact responsive multiple bladder seating and headrest system and method |
| EP2361800B1 (de) * | 2010-02-17 | 2013-04-24 | L & P Swiss Holding AG | Einstellvorrichtung für einen Sitz und Verfahren zur Bedienung der Einstellvorrichtung |
| EP2903866A4 (de) * | 2012-10-02 | 2016-05-04 | Tk Holdings Inc | Fahrzeuginsassenerkennungs- und klassifizierungssystem |
| JP2019093894A (ja) * | 2017-11-22 | 2019-06-20 | アイシン精機株式会社 | サポート装置 |
| DE102019206108B4 (de) * | 2019-04-29 | 2021-05-06 | Conti Temic Microelectronic Gmbh | Sitzsteuergerät und Fahrzeugsitz mit einem derartigen Sitzsteuergerät |
| CN111791781A (zh) * | 2020-07-14 | 2020-10-20 | 王生顺 | 一种abs改性塑料座椅 |
| DE102020215210A1 (de) | 2020-12-02 | 2022-06-02 | Psa Automobiles Sa | Fahrzeugsitz mit Seitenwangenverstellung |
-
2021
- 2021-12-14 DE DE102021214302.4A patent/DE102021214302A1/de active Pending
-
2022
- 2022-11-24 WO PCT/EP2022/083093 patent/WO2023110351A1/de not_active Ceased
- 2022-11-24 EP EP22822041.4A patent/EP4448332A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021214302A1 (de) | 2023-06-15 |
| WO2023110351A1 (de) | 2023-06-22 |
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Legal Events
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