DE102022205063A1 - Vehicle with a haptic collision warning in a seating arrangement - Google Patents

Abstract

Vehicle 1, with a collision warning device 2 for generating a collision warning 6, with a first output device 7 for outputting a first warning signal 8 based on the collision warning 6, the first warning signal 8 being an acoustic and/or optical signal with a seat arrangement, the seat arrangement a second output device 9 for outputting a haptic warning signal 10 based on the collision warning 6.

Description

Technical area:

The invention relates to a vehicle with a collision warning device that issues a collision warning. The invention also relates to a seat arrangement with a control device for processing the collision warning.

Background:

In print JP 2005 088717 A a vehicle with a collision warning device for generating a collision warning is disclosed. Distances to objects are measured by the collision warning device. If the distance is too close, a collision warning is sent to the driver as a vibration of the driver's seat. The vibration can vary in intensity, duration and time. When the vibration motors are arranged in a matrix, the vibration motors can be controlled individually and vibration sequences can run.

Description:

The invention is based on the object of improving collision warning in the vehicle. This task is achieved by the vehicle with a collision warning device with the features of claim 1. Preferred or advantageous embodiments of the invention result from the subclaims of the following description and/or the attached figures.

The invention relates to a vehicle which is motorized. The vehicle includes passenger car, truck, bus, motorcycle, etc.

The vehicle has a collision warning device for generating a collision warning. The collision warning device in the vehicle measures, in particular, distances to objects that can be detected in advance, and detects or calculates speeds and accelerations of the vehicle and/or the objects. If these objects fall below or are likely to fall below a minimum distance, a collision warning is issued.

The vehicle has a first output device for outputting a first warning signal based on the collision warning. In particular, the output of the first warning signal from the first output device has a direct effect on the driver. The first warning signal is an acoustic and/or visual signal.

The vehicle has a seating arrangement. The seating arrangement includes in particular the seats and accessories for the seats in the vehicle. The accessories include installations in seats such as airbags, electric motors for seat adjustment, vibration motors, control devices for controlling the accessories.

The seat arrangement has a second output device for outputting a haptic warning signal based on the collision warning. In particular, the output of the haptic warning signal from the second output device has a direct effect on the driver. A haptic warning signal is a warning signal that can be recognized by touch. The sense of touch extends to the entire skin and detects an increase or decrease in pressure on the skin.

In particular, the first and the haptic warning signal are output in parallel and/or simultaneously or at least overlapping in time.

It is an idea of the invention that a visual and/or acoustic warning signal can scare the driver. If the driver is startled, the driver's ability to react is restricted for a subsequent period of time, which may last several seconds. This period of time is called the fright second.

The simultaneous impact of two different warning signals on the driver during a collision warning, with one warning signal being haptic, can reduce the moment of shock. The two different warning signals allow a better conclusion to be drawn about the collision warning, as they affect several of the driver's senses at the same time.

By default, the first warning signal of the collision warning is output on the first output device. By issuing the first and the haptic warning signal on two different output devices, the intensity of the output or the intensity of the warning signals can be reduced. The latter reduces the extension so that the moment of shock can be overcome more quickly.

In a further embodiment, the seat arrangement has a control unit with an interface. In particular, the control unit is suitable for converting the collision warning of the collision warning device into a haptic warning signal. When a fieldbus is used in the vehicle, in particular as a CAN (Controller Area Network) or LIN (Local Interconnect Network) bus, the collision warning is issued on the fieldbus. The fieldbus is included in the seating arrangement via the interface connected to the control unit. This has the advantage that the control unit can convert the collision warning into the haptic warning signal. This means that the collision warning does not have to be converted specifically for the seating arrangement.

In a further embodiment, the seat arrangement has a seat, with the second output device being arranged in the seat.

In a continuation, the seat has a seating area, a backrest area and/or a headrest area. In particular, the second output device is arranged in the seat area, in the backrest area and/or in the headrest area.

In a preferred continuation, the second output device comprises at least one vibration motor. This has the advantage that the vibration motor increases or decreases pressure on the skin and thus generates a haptic warning signal.

In a further embodiment, several vibration motors are distributed in the seat area, backrest area and/or headrest area. In the backrest area, a vibration motor is preferably arranged on the left and a vibration motor on the right side of the center line of the backrest area. In the seating area, a vibration motor is preferably arranged on the left and a vibration motor on the right side of the center line of the seating area. In particular, a vibration motor can also be arranged in the headrest area on the left side and the right side of the center line of the headrest area. In particular, vibration motors can be arranged like a matrix. For example, an arrangement of vibration motors in a 3 x 3 matrix is possible in the backrest area. In particular, the vibration motors are arranged in a 3 x 2 matrix in the seating area.

In a preferred continuation, the multiple vibration motors can carry out the output simultaneously, one after the other, staggered, alternating and/or irregularly. This has the advantage that the control of several vibration motors enables the vibration to be better assigned to the haptic warning signal and thus to the collision warning. The control of several vibration motors can be referred to as a vibration pattern or vibration sequence.

In particular, the vibration pattern or the vibration sequence can be distributed across areas across the seat. A simultaneous, successive or superimposed and/or alternating order of vibration is possible by activating at least one vibration motor in the seat area, backrest area and/or headrest area. In particular, at least one vibration motor in the seat area, backrest area and headrest area simultaneously, successively or superimposed in a downward, upward, sideways, diagonally downwards, diagonally upwards, alternating between downwards, upwards or laterally directed order to be activated.

The simultaneous, sequential or superimposed and/or alternating order of activation of at least one vibration motor is called a vibration pattern or vibration sequence. In a sequential order, the first vibration motor is activated first and deactivated after a certain time (duration). At the time of deactivation, another vibration motor is activated. In a superimposed sequence, the first vibration motor is activated first and after a certain time, another vibration motor is also activated, so that two vibration motors vibrate simultaneously for a period of time. After a certain period of time, the vibration motors are deactivated. Deactivation can occur simultaneously or one after the other. For example, in a downward order, at least one vibration motor is activated first in the headrest area, then in the backrest area, then in the seat area, or first in the headrest area, then in the seat area, or first in the backrest area, then in the seat area. For example, in an upward order, at least one vibration motor is activated first in the seat area, then in the backrest area, then in the headrest area, or first in the seat area, then in the headrest area, or first in the seat area, then in the backrest area. The activation of at least one vibration motor in different areas of the seat (headrest area, backrest area, seat area) is referred to as cross-area. In a lateral sequence, at least one vibration motor is activated in the same area, preferably to the side of the first activated vibration motor.

The vibration of the at least one vibration motor can be changed in terms of the intensity of the vibration and/or the duration of the vibration. The duration of activation of the vibration is called the vibration pulse. The time between two vibration pulses can be changed.

For example, a downward order of vibration can be generated by activating at least one vibration motor in the backrest area with the superimposed activation of at least one vibration motor in the seat area.

In a further embodiment, the first output device comprises a display, a signal generator and/or a loudspeaker, for example of a stereo system in the vehicle. In particular, the display in the information field of the dashboard can issue a visual warning signal to the driver as a first warning signal. The information field for the driver includes, for example, a speed display, a fuel gauge and a collision warning display. In particular, a loudspeaker or a signal generator can output an acoustic warning signal as the first warning signal. The signal generator preferably produces a beeping, clacking, hammering, clicking, etc. One of the built-in speakers in the vehicle can be used as a loudspeaker for the acoustic warning signal as the first warning signal.

In a further embodiment, the output of the first output device is delayed in time from the output of the second output device. The time-delayed output of the first output device to the second output device has the advantage that the driver pays more attention to the collision warning. While the output via the first output device basically indicates the collision warning, the second output device can display the urgency of the collision warning. The presence of the second edition is sufficient to signal increased urgency. In particular, the second edition is in addition to the first edition.

In a further embodiment, the output of the first output device is after the start of the output of the second output device. The driver reacts less quickly to a haptic warning signal than to an acoustic and/or visual warning signal. When the haptic warning signal is output as a second output unit, the driver can react with barely a second of shock. The subsequent additional acoustic and/or visual warning signal as the first warning signal leads to a moment of shock, but the driver has already reacted and, if necessary, started braking. The additional first warning signal thus reinforces the already existing haptic warning signal.

In a further embodiment, the output of the first output device is before the start of the output of the second output device. An acoustic and/or visual warning signal as the first warning signal is recognized by the driver more quickly than a haptic warning signal. However, the driver reacts with a moment of shock. The time-delayed, subsequent, additional haptic warning signal causes the moment of shock to be interrupted by the additional stimulus. This helps shorten the time of the moment of shock.

Another subject relates to a seat arrangement which includes the second output device with an interface for signaling coupling to a vehicle in order to convert the collision warning from the collision warning device into a haptic warning signal. In particular, the seat arrangement here comprises a seat with a seat area, a backrest area and/or a headrest area. The seat preferably has a control device that is connected to the vehicle's fieldbus, for example the CAN (Controller Area Network) or LIN (local interconnect network) bus of the vehicle. The control unit can recognize the collision warning transmitted via the fieldbus and causes at least one vibration motor of the seat to be activated as a haptic warning signal. If a vibration sequence or pattern is to be generated, then multiple vibration motors are activated simultaneously, alternately and/or in a sequence as previously described. This has the advantage that the seat arrangement can transmit a haptic warning signal to the driver based on a collision warning. The haptic warning signal reduces the driver's moment of shock.

• 1 schematisches Blockdiagramm zur Kollisionswarneinrichtung mit zwei Ausgabeeinrichtungen;
• 2 Sitz mit Sitzbereich, Lehnenbereich und Kopfstützenbereich und Vibrationsmotoren

Further features, advantages and effects of the invention result from the following description of preferred exemplary embodiments of the invention. Show:

• 1 Schematic block diagram of the collision warning device with two output devices;
• 2 Seat with seating area, backrest area and headrest area and vibration motors

Corresponding or identical parts are provided with the same reference numerals in the figures.

The 1 shows a highly schematic block representation of a vehicle 1 with a collision warning device 2. The collision warning device 2 determines the distance from objects 3 lying in front of it, taking into account the speed 4 and the acceleration 5 of the vehicle 1. If an object 3 predictably falls below a minimum distance, the collision warning device 2 issues a collision warning 6. This collision warning 6 is forwarded to a first output device 7. This first output device 7 outputs a first warning signal 8 based on the collision warning 6. The first warning signal 8 is output visually and/or acoustically. The first output device 7 includes a display, a signal generator and/or a loudspeaker. For a visual output, a display can be arranged near the speed display on the dashboard. An acoustic off This can be done using a signal transmitter as a click, crack, beep or through a built-in loudspeaker. The loudspeaker can be part of the sound system of the vehicle 1 or was arranged in addition to the sound system for the output of warning signals.

In addition, the collision warning 6 is received by a second output device 9.

The second output device 9 generates a haptic warning signal 10. The haptic warning signal 10 can be recognized by the sense of touch on the skin. It is transferred to the skin via the seating arrangement. The seat arrangement includes a seat that has a seat area 20, a backrest area 21 and/or a headrest area 22. In addition, a control unit with an interface is arranged in the seat arrangement. The interface is connected to a fieldbus of vehicle 1. The fieldbus can be designed as a CAN (Controller Area Network) or LIN (local Interconnect Network). The collision warning 6 can be received via the interface. The collision warning 6 is converted into the haptic warning signal 10. The second output device 9 is arranged in the seat. The second output device 9 comprises at least one vibration motor 24. Several vibration motors 24 can be distributed in the seat area 20, backrest area 21 and/or headrest area 22.

The 2 shows a highly schematic representation of the seating arrangement, which has a seat. The seat includes a seat area 20, a backrest area 21 and/or a headrest area 22. Vibration motors 24 are arranged in these areas (seat area 20, backrest area 21, headrest area 22). The vibration motors 24 are shown as circles. The vibration motors 24 can be arranged like a matrix. The backrest area 21 has at least two vibration motors 24. These are arranged on both sides of the center line 23. For example, a vibration motor 24 is arranged on the left side of the center line 23 and a vibration motor 24 is arranged on the right side of the center line 23 of the backrest area 21. Optionally, the vibration motors 24 are arranged in a matrix, for example as a 3 x 3 matrix. Vibration motors 24 can also be arranged on the center line 23. The seating area 20 optionally has vibration motors 24. The vibration motors 24 in the seating area 20 can be arranged on both sides of the center line 23. A vibration motor 24 is on the left side of the center line 23 and a vibration motor 24 is on the right side of the center line 23 in the seating area 20. The headrest area 22 can also have two vibration motors 24. A vibration motor 24 is on the left side of the center line 23 and a vibration motor 24 is on the right side of the center line 23 in the headrest area 22. The headrest area 22 preferably has a vibration motor 24 in the center line 23. The headrest area 22 can be designed without a vibration motor 24.

When using multiple vibration motors 24, they can output the haptic warning signal 10 simultaneously, one after the other, staggered, alternating and/or irregularly. This has the advantage that the control of several vibration motors 24 enables a better assignment of the vibration to the haptic warning signal 10 and thus to the collision warning 6. The control of several vibration motors 24 can be referred to as a vibration pattern or vibration sequence.

In particular, the vibration pattern or the vibration sequence can be distributed across areas across the seat. A simultaneous, successive or superimposed and/or alternating order of vibration is possible by activating at least one vibration motor 24 in the seat area 20, backrest area 21 and/or headrest area 22. In particular, at least one vibration motor 24 in the seat area 20, backrest area 21 and headrest area 22 simultaneously, successively or superimposed in downward, upward, laterally, diagonally downward, diagonally upward, alternating between downward, upward or sideways order can be activated.

The output of the first warning signal 8 and the haptic warning signal 10 can be offset in time. A haptic warning signal 10 is perceived as less frightening. For example, the collision warning 6 can be converted into a haptic warning signal 10. At the same time, the collision warning 6 is converted into a first warning signal 8 with a short time delay. The time delay ranges from 5 milliseconds to 2 seconds. This has the advantage that with the haptic warning signal 10 an action by the driver to defuse the collision can already be initiated. The visual and/or acoustic warning signal then confirms the driver's action. A reduction in the ability to react due to the moment of shock caused by the visual and/or acoustic warning signal as the first warning signal 8 does not affect the action the driver has already carried out.

However, the optical and/or acoustic warning signal as the first warning signal 8 is perceived by a driver more quickly than a haptic warning signal 10. For example, the collision warning 6 can be converted into an optical and/or acoustic warning signal can be implemented. This can give the driver a moment of shock. A time delay in the haptic warning signal 10 causes the haptic warning signal 10 to interrupt the second of shock. The driver regains his ability to react by interrupting the moment of shock and can carry out an appropriate action.

In the 2 Seat arrangement shown includes a seat with a seat area 20, a backrest area 21 and / or a headrest area 22. Furthermore, the seat arrangement has at least one vibration motor 24 and a control device for coupling to a fieldbus of the vehicle 1, for example CAN (Controller Area Network) or LIN ( local interconnect network) bus. The control unit can convert the collision warning 6 of the collision warning device 2 into a haptic warning signal 10. The haptic warning signal 10 controls the at least one vibration motor 24. Furthermore, the at least one vibration motor 24 can be activated for vibration patterns or vibration sequences. This has the advantage that the seat arrangement can transmit a haptic warning signal 10 to the driver based on a collision warning 6.

In the 2 an upward order of vibration 25 is shown. A vibration motor 24 is activated in the backrest area 21 and then a vibration motor 24 is activated in the headrest area 22. The transition of the vibration from the backrest area 21 to the headrest area 22 is cross-area. Within the matrix of vibration motors 24 in the backrest area 21, an upward order of the vibration 25 is also possible by first activating a vibration motor 24 with a short distance to the seat area 20 and then a vibration motor 24 with a short distance to the headrest area 22.

A downward order of vibration 26 can be achieved by first activating a vibration motor 24 with a short distance to the headrest area 22 and then a vibration motor 24 with a short distance to the seat area 20.

A laterally directed sequence of vibration 28 can be achieved by first activating a vibration motor 24 on one side of the center line 23 and then a vibration motor 24 that is laterally offset from the active vibration motor 24. The second activated vibration motor 24 is preferably located on the other side of the center line 23, for example at the same height. A vibration motor 24 located on the left side of the center line 23 can first be activated and then a vibration motor 24 located on the right side of the center line 23 can be activated. The two activated vibration motors 24 are preferably located in the backrest area 21. The two activated vibration motors 24 can also be located in the seat area 20. For example, a vibration motor 24 located on the right side of the center line 23 may first be activated in the seating area 20 and then a vibration motor 24 located on the left side of the center line 23 may be activated in the seating area 20. A laterally directed sequence is preferably aligned in the same area (seat area 20, backrest area 21, headrest area 22) or in the same matrix.

A diagonally downward order of the vibration 27 can be achieved by first activating a vibration motor 24 with a short distance to the headrest area 22 and then a vibration motor 24 that is laterally offset from the active vibration motor 24 with a short distance to the seat area 20.

A diagonally upward order of the vibration 29 can be achieved by first activating a vibration motor 24 with a short distance to the seating area 20 and then a vibration motor 24 that is laterally offset from the active vibration motor 24 and has a short distance to the headrest area 22.

Furthermore, it can be determined that all vibration motors 24 of an area (seat area 20, backrest area 21, headrest area 22) are activated simultaneously as a haptic warning signal 10.

Furthermore, it can be determined that all vibration motors 24 are activated simultaneously as a haptic warning signal 10.

The vibration of the at least one vibration motor 24 can be changed in terms of the intensity of the vibration and/or the duration of the vibration. The duration of activation of the vibration is called the vibration pulse. The time between two vibration pulses can be changed.

While at least one embodiment has been disclosed in detail above, it should be appreciated that a variety of variations of the invention exist. It should also be recognized that the at least one exemplary embodiment is only exemplary in nature and does not represent a limitation on the scope, areas of application or configuration. Rather, the present disclosure is intended to be a convenient roadmap for implementing at least one exemplary embodiment. Thus, it should be appreciated that various variations in the function or arrangement of the elements of the at least one embodiment may be implemented without departing from the scope of is specified by the claims and their legal equivalents.

List of reference symbols:

1

vehicle

2

Collision warning device

3

object

4

speed

5

acceleration

6

Collision warning

7

first output device

8th

first warning signal

9

second output device

10

haptic warning signal

20

sitting area

21

Backrest area

22

Headrest area

23

Centerline

24

Vibration motor

25

upward order of vibration

26

downward order of vibration

27

diagonal downward order of vibration

28

sideways order of vibration

29

diagonal upward order of vibration

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• JP 2005088717 A [0002]

Claims (12)

vehicle (1), with a collision warning device (2) for generating a collision warning (6), with a first output device (7) for outputting a first warning signal (8) based on the collision warning (6), wherein the first warning signal (8) is an acoustic and/or optical signal with a seat arrangement, the seat arrangement having a second output device (9) for outputting a haptic warning signal (10) based on the collision warning (6). Vehicle (1) after Claim 1 characterized in that the seat arrangement has a control device with an interface and the control device is suitable for converting the collision warning (6) of the collision warning device (2) into a haptic warning signal (10). Vehicle (1) according to one of the preceding claims, characterized in that the seat arrangement has a seat, the second output device (9) being arranged in the seat. Vehicle (1) according to one of the preceding claims, characterized in that the seat has a seat area (20), a backrest area (21) and / or a headrest area (22), the second output device (9) in the seat area (20) , is arranged in the backrest area (21) and/or in the headrest area (22). Vehicle (1) according to one of the preceding claims, characterized in that the second output device (9) comprises at least one vibration motor (24). Vehicle (1) according to one of the preceding claims, characterized in that a plurality of vibration motors (24) are distributed in the seat area (20), backrest area (21) and/or headrest area (22). Vehicle (1) according to one of the preceding claims, characterized in that the plurality of vibration motors (24) carry out the output simultaneously, one after the other, offset, alternating and/or irregularly. Vehicle (1) according to one of the preceding claims, characterized in that the first output device (7) comprises a display, a signal generator and/or a loudspeaker. Vehicle (1) according to one of the preceding claims, characterized in that the output of the first output device (7) is delayed in time from the output of the second output device (9). Vehicle (1) according to one of the preceding claims, characterized in that the output of the first output device (7) is after the start of the output of the second output device (9). Vehicle (1) according to one of the Claims 1 until 8th characterized in that the output of the first output device (7) is before the start of the output of the second output device (9). Seat arrangement for the vehicle according to one of the preceding claims, comprising the second output device (9) with an interface for signaling coupling to the vehicle (1) for converting the collision warning (6) from the collision warning device (2) into a haptic warning signal (10).

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