EP1567830A1 - Driver support system - Google Patents

Driver support system

Info

Publication number
EP1567830A1
EP1567830A1 EP03773493A EP03773493A EP1567830A1 EP 1567830 A1 EP1567830 A1 EP 1567830A1 EP 03773493 A EP03773493 A EP 03773493A EP 03773493 A EP03773493 A EP 03773493A EP 1567830 A1 EP1567830 A1 EP 1567830A1
Authority
EP
European Patent Office
Prior art keywords
driver
vehicle
support system
operation
output
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Withdrawn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
EP03773493A
Other languages
German (de)
French (fr)
Inventor
Jens Faenger
Andreas Kynast
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
Priority to DE10255436 priority Critical
Priority to DE2002155436 priority patent/DE10255436A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to PCT/DE2003/003298 priority patent/WO2004051191A1/en
Publication of EP1567830A1 publication Critical patent/EP1567830A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00Navigation; Navigational instruments not provided for in preceding groups G01C1/00-G01C19/00
    • G01C21/26Navigation; Navigational instruments not provided for in preceding groups G01C1/00-G01C19/00 specially adapted for navigation in a road network
    • G01C21/34Route searching; Route guidance
    • G01C21/36Input/output arrangements for on-board computers
    • G01C21/3626Details of the output of route guidance instructions
    • G01C21/3641Personalized guidance, e.g. limited guidance on previously travelled routes

Abstract

The invention relates to a driver support system for a motor vehicle, said system comprising output means for outputting information to a driver of the motor vehicle, and/or operating means enabling the driver to operate the driver support system, and control means for controlling the information output and/or the operation. Said system is characterised in that means for determining a state of stress of the driver are provided, and the control means are designed to control the information output and/or the operation according to the state of stress of the driver of the vehicle. The inventive driver support system is advantageous in that the operation of the driver support system and the information output performed by the driver support system is adapted to the stress of the driver, and consequently an excessive demand or an excessive deviation of the driver from the traffic trend is avoided. In this way, the invention contributes to safety on the road.

Description

Fahrerassistenzsvstem

The invention relates to a driver assistance system with the features of the preamble of the independent claim.

State of the art

There are driver assistance systems in the form of car navigation systems are known, the travel-direction instructions for guiding a vehicle driver along a previously calculated route to a destination output in acoustic and / or optical form. To calculate the route, the input of the destination by the Falirzeugführer via a user interface of the car navigation system in advance is required. Since the destination input brings while driving a significant deviation from the traffic with it, has been and is being discussed to inhibit the operation of the device, in particular the destination input while driving the vehicle.

In a known further development of such vehicle navigation systems is provided that the turn instructions are not issued at a predetermined distance in front of a turning or a general decision point, that is, for example, a motorway junction or intersection, but with increasing vehicle speed in increasing distance from the decision point. This is to ensure that the vehicle driver a consistent response time is available regardless of the vehicle speed to follow the turn instructions.

Advantages of the Invention An inventive driver assistance system having the features of independent patent claim, has the advantage that the operation of the driver assistance system and the information output is adjusted by the driver assistance system to a respective load of the vehicle driver, and thus an excessive demand or excessive

Distraction of the vehicle driver is prevented from traffic. Thus, the invention for road safety contributes.

In an advantageous development of the invention it is provided that the driver assistance system via a profile memory for storing at least one

User profile has, and that the control of information output and / or operation is additionally performed as a function of a stored in the profile memory user profile. Thus, the control of the operator and / or information output can be customized in addition to the load dependence user-specific.

In summary, the invention thus makes it possible, taking into account the current driving situation, the driver state and possibly the driver profile, that the resulting burden on the vehicle driver by the driving task an adjustment of the output strategies and information density of driving instructions to the situation (for example, frequency of messages output medium Display), a situation-specific

Adaptation of operating procedures (eg restriction / blocking of the functionality of dialogues), simplified operation, as decisions are made independently by the system and, ultimately, increased driving safety because the driver can concentrate in critical situations more on the actual driving task and not distracted becomes.

drawings

Embodiments of the invention are illustrated in the drawings and are explained in more detail below.

Show it

1 shows a block diagram of the erfmdungserheblichen part of a driver information system using the example of a vehicle navigation system. Description of Embodiments

The invention is explained below using the example of a vehicle navigation system as an example of a driver information system. However, this does not

Limitation of the subject matter to car navigation systems.

The car navigation system 1 shown in Figure 1 includes a controller 10, which is preferably implemented as software and is executed by a microprocessor.

To the controller an operating unit 11 is connected, as indicated in the figure, includes control elements in the form of keys or key fields. As also indicated in the figure, the control unit 11 may also alternatively or additionally to the aforementioned controls a per se known

Voice input means comprise. Finally, the control unit 11 can make the operation of the car navigation system 1 along a known user interface, also MMI (Man Machine Interface) together with a likewise connected to the control output unit 12th

The operating unit described 11 or user interface is used in the case of the vehicle navigation system, for example, entering a destination for a subsequent journey route calculation and guidance.

The connected to the controller 10 output unit 12 may include both a display for visual display of information, as well as, alternatively or in addition to an audible output. In the case of the car navigation system of the actual route guidance along a calculated route via the output unit driving direction instructions in the form of spoken instructions are audible and or output in the form of directional arrows as a visual display, for example, in the frame. The direction arrows can thereby be displayed, for example, both as naked arrows or even against the context of a map display. In addition, the input of a target site in a conventional manner via the control elements selectable letters or names of destinations on the display device to be visually displayed, for example, in the frame. a sensor 13 for detecting vehicle operating data is further connected to the control 10th The sensor 13 includes, for example acceleration sensors, for the detection of longitudinal and transverse accelerations of the vehicle, arising from acceleration and braking and during cornering. Such acceleration sensors are used in current navigation systems for determining a current vehicle position, but also for example to incident detection in conjunction with an air bag deployment. The sensor 13 also detects, for example, an actual vehicle speed due to a tacho signal.

However, the sensor 13 detects for example, the switch positions of a light switch for dipped beam, fog lights and rear fog light, wiper, the response of the ABS (antilock braking system) in the event of a strong deceleration of the vehicle, an outside temperature, and other data that are not exhaustively listed herein.

is in a driver state detection 14, which is preferably embodied as a software module of the controller 10 from the data of sensor 13, closed to the actual load of the vehicle driver.

For example, the driver state detection decides in case of low acceleration of the vehicle and a speed of the order of 80 to 130 mph to a low load of the vehicle driver, as is typical in calm motorway or country road driving on little winding roads with light traffic. Are at the same speed values ​​higher longitudinal or

recorded lateral acceleration, that will not on increased traffic and a curvier route and therefore include a higher burden on the driver. Likewise, a powered rear fog lamp or wipers can, for example, an increased concentration requirement of the vehicle driver and thus an increased burden on the vehicle driver by the

Driving task suspect.

According to a preferred development of the invention, the driver state detection taken into account in addition to the vehicle data, which are detected by the vehicle sensor 13, additional context data that are taken from a context database 15 °.

The context database 15, for example, contains a digital road map, as is common in navigation systems. Due to the context database 15 and a position determined by the position determination of the vehicle navigation system current vehicle position can be determined whether the vehicle location is, for example, on a motorway, a country road or in the area of ​​a local passage. This additional information can be taken into account for determining the load of the vehicle driver by the driver state detection 14 preferably. Thus, the driver state detection 14, for example, at a vehicle speed of 100 km / h and a location on a highway a lower driver stress firmly than at the same speed on a narrow or poorly-developed highway.

Further evidence of the burden of the driving task provides the path of the route. the vehicle approaches such as a curved road or a dangerous intersection, so the driver is amplified need to focus on the control of the vehicle. Combined with the navigation information from it can create a forecast for the drivers' workload.

According to a further development of the invention such as a current body temperature or the skin surface conductivity can be considered as a measure of perspiration, which are detected by a corresponding driver sensor 16 for determining the driver's burden of the driver state detection 14 further driver data.

Finally, information of a profile database 17 may be used additionally, in a particularly advantageous development of the invention, which can be combined with previously described embodiments and further developments, for determining the actual load of the vehicle driver. In the profile data of the profile database 17 preferences of the user are stored. This includes for example the information in what situations he prefers which output forms.

Further, as desired by the driver situation-related issue of

Route guidance instructions are learned by the system. For this purpose it monitors the situation in which chooses which presentation forms or shape of the voice guidance of the user, such as arrow display and detailed speech in bad weather or low-detail map display and short voice instructions at high traffic density. This information is inserted into the profile database 17 in the driver profile. This self-taught experience, the driver assistance can provide the vehicle driver the custom of the situation support.

Based on the recognition of the current load of the vehicle driver based on a detection and evaluation of the driving situation on the basis of

Vehicle operating data and optionally the context data of the driver profile and, if the driver performs the control data 10 following functions

Choice of situation-specific speech strategy taking into account the driver's preferences. This includes the frequency of navigation instructions and their detail, ranging from simple indications of direction ( "just to the left", now right ") to long ranging, detailed instructions ranges (" Please turn them into 500 m left into Hildesheimer Strasse. Please reduce the speed, the curve is tight "), - having visual selection of the situation-specific routing strategy.

Taking into account the driver's preferences. This includes deciding what is represented. Thus, the system can decide whether either an arrow, a card or a 3D representation of the environment should take place. Besides, it decides which screen (center console or instrument panel) or where the representation takes place there.

Adjusting the information density of the visual output. An arrow may be shown, for example, normal or in perspective. This also applies for the card, there decisions must still be taken on the map scale and the detailing. So all roads can be removed from the map in favor of clarity that are small or are not on the route. With an SD

Output can include the presentation of all the buildings or only important

Landmarks.

Uu choice of spending strategies for other output media, such as

Sound output, haptic expenses (eg force feedback on the steering wheel), - situation-specific adaptation of operating procedures. This includes blocking all dialogs, which are currently not operated for safety reasons. Other dialogs are shown simplified by operating elements are blocked for unimportant functions or removed. The operation of the invention will now be further illustrated with reference to a concrete application example.

The driver of the controls of the navigation system a destination and drives off. The road is clear and the weather is good. The driver state detection closes due to the simple task of driving a normal load. For this reason, routing instructions are given at some length, and often, eg "Turn please 1 km turn left into Robert-Bosch-Strasse". In addition, the map display is detailed and also displays small streets.

After some time, the driving situation deteriorated because it starts to rain heavily. This recognizes the system by dialing a high level wipers. Since the driver has to concentrate on the driving task stronger, so has increased the burden on the vehicle driver, the driving instructions are given short and concise from now, for example, "In 1 km turn left". This short form is the output

Amount of information is reduced and thus deflected less from the actual task of driving the driver. In addition, the frequency of reporting and the information content of the map display reduced is reduced, for example by all to be removed for guidance unimportant roads.

Later, the traffic density increases, so that the vehicle driver often has to correct the speed. From the frequent braking and acceleration, the system includes a very high load of the vehicle driver. For security reasons it disables not immediately necessary functions of the navigation system, including all settings dialogs. Thereby, it is prevented that the driver is deflected by the actuating input from the driving process.

Claims

claims:
1. Driver assistance system for a motor vehicle, having output means for outputting information to a vehicle driver of
Kraftfalirzeugs and / or operating means for the operation of the driver assistance system by the vehicle driver, and control means for controlling the information output and / or operation characterized by means for determining a load state of the vehicle driver and a design of the control means for controlling the information output and / or operation in dependence on the load state the vehicle driver.
2. Driver assistance system according to claim 1, further characterized by a profile memory for storing at least one
User profile and by a design of the control means for controlling the information output and / or operation in addition depending on a stored in the profile memory user profile.
EP03773493A 2002-11-28 2003-10-06 Driver support system Withdrawn EP1567830A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE10255436 2002-11-28
DE2002155436 DE10255436A1 (en) 2002-11-28 2002-11-28 Driver assistance system
PCT/DE2003/003298 WO2004051191A1 (en) 2002-11-28 2003-10-06 Driver support system

Publications (1)

Publication Number Publication Date
EP1567830A1 true EP1567830A1 (en) 2005-08-31

Family

ID=32318740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03773493A Withdrawn EP1567830A1 (en) 2002-11-28 2003-10-06 Driver support system

Country Status (4)

Country Link
US (1) US20050234617A1 (en)
EP (1) EP1567830A1 (en)
DE (1) DE10255436A1 (en)
WO (1) WO2004051191A1 (en)

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Also Published As

Publication number Publication date
WO2004051191A1 (en) 2004-06-17
US20050234617A1 (en) 2005-10-20
DE10255436A1 (en) 2004-06-17

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