DE19822556A1 - Automatic distance control between successive road vehicles - Google Patents

Automatic distance control between successive road vehicles

Info

Publication number
DE19822556A1
DE19822556A1 DE19822556A DE19822556A DE19822556A1 DE 19822556 A1 DE19822556 A1 DE 19822556A1 DE 19822556 A DE19822556 A DE 19822556A DE 19822556 A DE19822556 A DE 19822556A DE 19822556 A1 DE19822556 A1 DE 19822556A1
Authority
DE
Germany
Prior art keywords
distance control
driver
vehicle
ffz
control
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
DE19822556A
Other languages
German (de)
Inventor
Rene Zschoppe
Udo Wehner
Gerd Bus
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.)
IAV GmbH
Original Assignee
IAV Motor 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 IAV Motor GmbH filed Critical IAV Motor GmbH
Priority to DE19822556A priority Critical patent/DE19822556A1/en
Publication of DE19822556A1 publication Critical patent/DE19822556A1/en
Ceased legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K31/00Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
    • B60K31/0008Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including means for detecting potential obstacles in vehicle path
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K31/00Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
    • B60K31/18Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including a device to audibly, visibly, or otherwise signal the existence of unusual or unintended speed to the driver of the vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00Brake-action initiating means
    • B60T7/12Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/22Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle, or by means of contactless obstacle detectors mounted on the vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2540/00Input parameters relating to occupants
    • B60W2540/12Brake pedal position
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2540/00Input parameters relating to occupants
    • B60W2540/14Clutch pedal position
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88Radar or analogous systems specially adapted for specific applications
    • G01S13/93Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/932Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles using own vehicle data, e.g. ground speed, steering wheel direction
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88Radar or analogous systems specially adapted for specific applications
    • G01S13/93Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9325Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles for inter-vehicle distance regulation, e.g. navigating in platoons
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88Radar or analogous systems specially adapted for specific applications
    • G01S13/93Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9327Sensor installation details
    • G01S2013/93271Sensor installation details in the front of the vehicles

Abstract

Method for operating an automatic distance control device for motor vehicles and distance control device for performing this method. Distance control devices are known which are able to recognize vehicles, to locate them and from the environmental information, e.g. B. the track, automatically select a relevant target. A disadvantage of this method is that the determination of the relevant target can be wrong and uncomfortable reactions of the vehicle cannot be excluded for the driver. A relevant destination is incorrectly determined primarily due to uncertainties in the detection or prediction of the further course of the lane. DOLLAR A The invention describes a method and a device for carrying it out, in which these uncertainties are compensated for by involving the driver. A destination is displayed to the driver in a suitable manner and he must confirm this manually as a destination relevant for the distance control. After the vehicle is picked up, the system automatically pursues it as a target. The driver is thus actively involved in the distance control system.

Description

Method for operating an automatic distance control device for force vehicles and distance control device for performing this method.

The invention relates to a method for operating an automatic distance Control device for motor vehicles according to the preamble of the main claim and a distance control device for performing this method.

Generic distance control devices are known which are effective Condition in their sensor detection area locate vehicles and a guide automatically select vehicle, its relative position to your own vehicle by interpolating the course of the track and then track it. This takes place at an automatically adjusted distance according to the speed of the Leader vehicle.

This automatic selection principle of a lead vehicle is not always safe and in practice results in disadvantageous driving depending on the situation. Due to incorrect classification of the objects themselves or their position within of the interpolated further lane course, it can lead to undesired vehicle reactions come. Both the automatic target recording and the target ver can follow z. B. be complicated by the course of the road.

The invention has for its object a method for operating an auto matic distance control device for motor vehicles to create that the off Allows the driver to select a lead vehicle, this selection being made can be supported by the distance control device.

According to the invention, this object is achieved by the characterizing features of Process solved in the main claim.

The driver decides on the inclusion of the guide ride that suits him Stuff itself, with the distance control device the safe recording of a leader vehicle signals. He contributes to his assessment vehicle to ensure the safe functionality of the process.  

Furthermore, an embodiment of a distance control device according to the invention device for performing the method explained in the description.

On the basis of a drawing, an embodiment of an inventive Method and a distance control device for performing the method to be discribed.

It shows

Fig. 1 i a schematic of a distance control device and their compounds in the vehicle FZ,

Fig. 2 schematic of a management situation between a leading vehicle and the vehicle with distance control device 1,

Fig. 3 state graph of the distance control device 1.

In Fig. 1, the vehicle FZ with the distance control device 1 and the driver F is shown schematically, which moves you in Fig. 2 behind a leader vehicle FFZ be.

In Fig. 3, the conditions are shown B1 to B11 for changing between functional states Z1 to Z4 of the vehicle operation.

Adapting to the traffic situation, driver F intervenes in engine control MST, brakes B and power transmission KÜ at his discretion. When B1 these assemblies are actuated, the control function - Z3 - the distance control device 1 for the vehicle FZ is switched off - Z1 - the driver F determines its driving state.

When the driver intervenes - B2 - in the MST engine control via the accelerator pedal only a temporary takeover of vehicle operations - Z4 - by the Fah rer F. After the intervention - B3 - the distance control is automatic active again - Z3 - and, if still available, pursues the preselected leadership vehicle FFZ.

The distance control device 1 controls in the switched-on state - Z3 - as a function of the driving state of the lead vehicle FFZ, the speed and distance to this via the engine control MST and the brake BR accordingly, the driving situation detected by sensors 5 , 6 and a computing unit 2 .

The computing unit 2 can optionally be effectively switched as a speed control system or a distance control device.

Leading vehicles are recorded via sensors 5 and the apron in the direction of travel is monitored for obstacles. If necessary, intervention in the MST engine control and / or the brake B takes place.

The distance control device 1 can be switched off manually by the driver F - B4 - and can alternatively also subsequently in other operating modes, for. B. Speed control - Z2 -, brought - B5 -.

The distance control device 1 locates vehicles traveling in front and preferably selects those with the same driving state and in a central detection sector α s which is relevant to the driving situation as the leading vehicle FFZ.

A vehicle with a driving condition similar to its own vehicle FZ is offered by the distance control device by signals to driver F as a leading vehicle FFZ - B7 -. After the signaled detection of this guide vehicle FFZ, the distance control device 1 can be effectively switched by the driver F - B9 -.

The distance control device 1 switches after loss of contact - B10 - with the lead vehicle FFZ, the distance control ineffective, but the Ge speed control system remains automatically activated - Z2 -, the speed set at the time of loss of contact is maintained. The distance control device 1 can be switched off - B11 - and can be selected by a new activation by the driver F - B9 - a new lead vehicle FFZ - B7.

Even when the - B4 cruise control system - Z2 - is switched on, the Offer of a lead vehicle FFZ the admission - B8 - one from the driver selected lead vehicle FFZ.

The automatic distance control device 1 warns when the speed control system is switched on - Z2 - in critical driving situations - B12 - via its Signalein unit 4 the driver F in a suitable manner.

Are target objects, such as the vehicle FFZ in this case, within the detection range of the sensor S, this is registered by the computing unit 2 and displayed to the driver F via the signal unit 4 as a usable guide vehicle FFZ - B6 or B7 -. This can be done optically or acoustically.

The target offer is preferably selected from the search angle range α s of the detection range α EB of the sensor 5 or the search angle range α s is laterally shifted in accordance with the driving state of the vehicle FZ following. Several relevant destinations can be offered, but advantageously only one vehicle from the area 5 of the sensor 5 which is appropriate for the situation should be offered.

Driver F can confirm the offered - B6 or B7 - lead vehicle FFZ - B8 or B9 - or ignored.

In a possible embodiment of the signal unit 4 , which is capable of several FFZ guiding vehicles, e.g. B. to show on a display, the driver F is able to select a leader vehicle FFZ from the offered or switch between them during active operation.

After acceptance of the lead vehicle FFZ, an automatic one takes place Tracking - Z3 - the lead vehicle FFZ by the distance control device.

The speed is regulated in accordance with that of the lead vehicle FFZ and a speed-adjusted distance of the following vehicle F Driving dynamics through intervention in the MST engine control or brakes B adhered to.

To summarize, the different control states and operating states of the driving state control from which the tracking of a leading vehicle FFZ can be triggered can be listed again:

  • - According to the invention according to B9 by the driver F when one is detected Leading vehicle FFZ - Z1 to Z2 -.
  • - by switching on the distance control device 1 according to B8 with the speed control switched on - from Z2 to Z3 -,
  • - after releasing the load position sensor according to B3 - from Z4 to Z3 -.
Reference list

1

Distance control device

2nd

Central processing and control unit

3rd

Input unit

4th

Signal unit

5

Distance sensor

6

Lane prediction sensor
FZ vehicle
FFZ lead vehicle
MST engine control
B braking system
KÜ power transmission system
α S

Search angle
α EB

Detection area
Z1 state: distance control device OFF
Z2 state: cruise control effective
Z3 Status: Target tracking driver-selected target effective
Z4 condition: temporary takeover by the driver
B1 Driver action: brakes and / or clutch
B2 Driver action: Accelerator pedal intervention
B3 End intervention on the accelerator pedal
B4 Driver action: activation of cruise control system from OFF state
B5 Driver action: activation of cruise control from cruise control
B6 Lead vehicle offer of the cruise control system from the cruise control
B7 Lead vehicle offer of the distance control system from state OFF
B8 Driver action: selection of a leading vehicle with effective cruise control
B9 driver action: target selection from the OFF state, - Z1 -
B10 Loss of contact with target vehicle
B11 driver action: deactivate target tracking manually
B12 Critical state detection
B13 Driver action: brake or clutch intervention
A1 driver warning action (visual and / or acoustic, haptic)

Claims (19)

1. A method for operating an automatic distance control device ( 1 ) distance control device for motor vehicles, which detects the distance to vehicles in front via sensors ( 5 , 6 ) and controls the vehicle speed to maintain the necessary distance, characterized in that
that the distance control device ( 1 ) can be switched effectively and ineffectively after the driver (F) has picked up a lead vehicle (FF) selected by the driver (F).
2. The method according to claim 1, characterized,
that the distance control device ( 1 ) is automatically switched off by the driver (F) when the brake and / or clutch is actuated.
3. The method according to claim 1, characterized in that the distance control device ( 1 ) by the driver (F) can be switched off manually and / or can be brought into other system modes.
4. The method according to claim 1, characterized in that the distance control device (1) on automatically after loss of contact with the leading vehicle (FFZ) the cruise control system, while maintaining the set at the time of the contact loss rate and the Ab level control means (1) is deactivated.
5. The method according to claim 1, characterized in that the distance control device ( 1 ) enables a desired change of destination sel by the driver (F).
6. The method according to claim 1, characterized in that the automatic distance control device ( 1 ) warns the driver (F) when the speed control system is switched on in critical driving situations.
7. The method according to claim 1, characterized in that when the cruise control system is switched on the inclusion of a driver (F) selected guide vehicle (FFZ) and the distance control device ( 1 ) by the driver (F) is effectively switchable.
8. The method according to claim 1 and 5, characterized in that the automatic distance control device ( 1 ) locates a vehicle and offers signals to the driver (F) as a lead vehicle (FFZ).
9. The method according to claim 1, 5, 8, characterized in that the lead vehicle (FFZ) continues to be pursued after the distance control device has come into effect as long as it detects the front sensor ( 5 ), or the tracking is prevented by driver intervention.
10. The method according to claim 1, characterized in that the automatic distance control device ( 1 ) selects a leading vehicle (FFZ) with a relevant driving state and only in a detection sector corresponding to the driving situation (α s ).
11. Distance control device for performing the method according to claim 1, characterized in that a switching arrangement for activating ( 3 ) the distance control device ( 1 ) for a preselected leader vehicle (FFZ) is available.
12. Distance control device according to claim 11, characterized in that a display device ( 4 ) for the driver (F) is present which signals a leading vehicle (FFZ) in the search angle (α s ).
13. Distance control device according to claim 11, characterized in that the search angle (α s ) is less than the detection range (α EB ).
14. Distance control device according to claim 11, characterized in that the position of the search angle (α s ) within the detection range (α EB ) can be changed as a function of the sensor ( 6 ) for track prediction.
15. Distance control device according to claim 11, characterized,
that a signal unit ( 4 ) signals more than one command vehicle (FFZ) and a switching arrangement for selecting and activating ( 3 ) the distance control device ( 1 ) for one of the preselected command vehicles (FFZ) exists.
16. Distance control device according to claim 15, characterized in that the switching arrangement for selecting and activating ( 3 ) the distance control gel device ( 1 ) in the signal unit ( 4 ) for displaying the lead vehicles (FFZ) is integrated.
DE19822556A 1998-05-20 1998-05-20 Automatic distance control between successive road vehicles Ceased DE19822556A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19822556A DE19822556A1 (en) 1998-05-20 1998-05-20 Automatic distance control between successive road vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19822556A DE19822556A1 (en) 1998-05-20 1998-05-20 Automatic distance control between successive road vehicles

Publications (1)

Publication Number Publication Date
DE19822556A1 true DE19822556A1 (en) 1999-12-02

Family

ID=7868352

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19822556A Ceased DE19822556A1 (en) 1998-05-20 1998-05-20 Automatic distance control between successive road vehicles

Country Status (1)

Country Link
DE (1) DE19822556A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10048102A1 (en) * 2000-09-28 2002-04-18 Adc Automotive Dist Control Method for operating a driver assistance system for motor vehicles

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4437678A1 (en) * 1994-10-21 1996-05-02 Telefunken Microelectron Method fo regulating distance between motor vehicles
DE19650168A1 (en) * 1996-12-04 1998-06-10 Volkswagen Ag Method and device for regulating the speed of a motor vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4437678A1 (en) * 1994-10-21 1996-05-02 Telefunken Microelectron Method fo regulating distance between motor vehicles
DE19650168A1 (en) * 1996-12-04 1998-06-10 Volkswagen Ag Method and device for regulating the speed of a motor vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan P-1319, 1992, Vol. 16, No. 85, JP 3-2 69 315 A *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10048102A1 (en) * 2000-09-28 2002-04-18 Adc Automotive Dist Control Method for operating a driver assistance system for motor vehicles

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8127 New person/name/address of the applicant

Owner name: IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHR, 1

8131 Rejection