EP1047571A1 - Distance-related electronic driving speed regulating system - Google Patents

Distance-related electronic driving speed regulating system

Info

Publication number
EP1047571A1
EP1047571A1 EP98965791A EP98965791A EP1047571A1 EP 1047571 A1 EP1047571 A1 EP 1047571A1 EP 98965791 A EP98965791 A EP 98965791A EP 98965791 A EP98965791 A EP 98965791A EP 1047571 A1 EP1047571 A1 EP 1047571A1
Authority
EP
European Patent Office
Prior art keywords
speed
control
distance
predetermined
setting
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Withdrawn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
EP98965791A
Other languages
German (de)
French (fr)
Inventor
Willibald Prestl
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 DE19802704A priority Critical patent/DE19802704A1/en
Priority to DE19802704 priority
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to PCT/EP1998/007986 priority patent/WO1999037498A1/en
Publication of EP1047571A1 publication Critical patent/EP1047571A1/en
Withdrawn legal-status Critical Current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
    • B60K35/00Arrangement of adaptations of instruments
    • 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
    • B60K31/02Vehicle 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 electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically
    • B60K31/04Vehicle 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 electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of an electrical signal which is fed into the controlling means
    • B60K31/042Vehicle 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 electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of an electrical signal which is fed into the controlling means where at least one electrical quantity is set by the vehicle operator
    • 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
    • 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
    • B60W2554/00Input parameters relating to objects
    • B60W2554/80Spatial relation or speed relative to objects
    • B60W2554/801Lateral distance

Abstract

The invention relates to a distance-related electronic driving speed regulating system for motor vehicles, wherein a predetermined constant speed is maintained during a first regulating mode until a predetermined minimal distance to a preceding vehicle is reached or surpassed. When said predetermined minimal distance is reached or surpassed during a second regulating mode, the speed is regulated is such a way that the predetermined minimal distance is maintained in the form of a distance-regulated follow-on drive. If the gas pedal is actuated during the first or the second regulating mode to accelerate to an increased actual speed exceeding the momentarily predetermined speed, a new speed is predetermined by actuating a set operating element depending on the increased actual speed.

Description


  
 



  Distance-related electronically controlled vehicle speed control system The invention relates to a distance-related electronically controlled vehicle speed control system for motor vehicles according to the preamble of patent claim 1.



  Vehicle speed control systems of this type are known, for example, from US Pat. No. 5,014,200 or from EP 0 501 346 B1. In such a vehicle speed control system, a predetermined speed is basically kept constant during a first control operation until a predetermined minimum distance from a vehicle in front is reached or undershot. When this predetermined minimum distance is reached or undershot, speed control takes place during a second regular operation in such a way that the predetermined minimum distance is maintained in the form of a distance-controlled follow-up journey.



  For programming the specified speed, a method is known from EP 0 501 346 B1, for example, in which the driver accelerates to a desired speed value and then actuates a speed setting switch in order to store the current speed of the vehicle as the specified speed. If the driver desires acceleration or deceleration of the vehicle speed during the subsequent control operation, this can only be done in a cumbersome manner by actuating a special speed change switch during control operation.



  In other known vehicle speed control systems, the preselection of the predefined speed is carried out exclusively by tapping incremental or decrementing buttons or switches, the predefined speed being switchable up or down in fixed steps. In the case of large changes in the predetermined speed desired by the driver, this results in a high level of operating effort due to multiple taps.



  It is an object of the invention to improve a distance-related, electronically controlled vehicle speed control system of the type mentioned at the outset in such a way that a flexible, quick and simple possibility of changing the predetermined speed is created.



  This object is achieved by the characterizing features of patent claim 1. Advantageous developments of the invention are the subjects of the subclaims.



  According to the invention, in the case of an acceleration made by operating the accelerator pedal during control operation beyond the currently predetermined speed to an increased actual speed, a new speed is specified as a function of the increased actual speed when the driver actuates a setting operating element. In the following, increased actual speed always means an actual speed which is above the currently specified speed.



  In a preferred embodiment of the invention, the setting of the predefined speed can additionally be carried out by manually operated switching operating elements (buttons or switches) that increment or decrement the speed. If such a switching control element is present, the new predetermined speed when the setting control element is actuated after reaching an increased actual speed due to the acceleration made by actuating the accelerator pedal during control operation is the next one, which is above or below the increased actual speed , speed also achievable by the switching control element. Here, the starting point is rounded up or down based on the increased actual speed reached.

   The reason for the rounding up or down is in particular that the speeds achievable in steps can usually be displayed, but the speed values in between cannot. However, the driver should always receive an indication of the speed just specified. Since the vehicle speed control system is distance-related, there is no such high requirement for the accuracy of the specified speed. However, the driver's information is in the foreground.



  The setting control element is preferably the same as the switching control element for incrementing in steps. If in this case the switching control element is actuated once after reaching an increased actual speed due to the acceleration made by operating the accelerator pedal during operation, it serves as a setting control element. As usual, the further actuation of this switching control element leads to the further incrementing of the speed in steps.



  However, actuation of the switching control element for incrementing should in all cases lead to an increase by at least one step in a higher-level manner than all functions.



  This invention creates a meaningful combination between an incremental and a desired speed-based specification of the desired speed for a vehicle speed control system, by means of which the operating effort is reduced and the responsiveness is increased.



  In the drawing, an embodiment of the invention is shown. 1 shows an example in which the increased actual speed is more than one step greater than the currently specified speed and FIG. 2 shows an example in which the increased actual speed is less than one step higher than the currently specified speed is dizziness.



  Fig. 1 above shows the initial state of the speed of 100 km / h as the initial state during control operation. This currently predetermined speed can, for example, have previously been incremented in stages, in this example of 10 km / h, by a switching control element in the form of a manually operated setting button. The speed indicator (digital or analog tachometer) in the motor vehicle is preferably combined with a light indicator, so that each currently specified speed can be visually indicated to the driver in 10 km / h steps.



  According to the example in FIG. 1, the accelerator is accelerated based on a currently specified speed of 100 km / h during normal operation and the vehicle is accelerated to an increased actual speed of v = 125 km / h and then the setting button for incrementing as a setting control element depressed, the display jumps according to Fig. 1 below to the new predetermined speed of 120 km / h if rounded (hatched), or to 130 km / h if rounded (filled in black). According to the invention, these newly specified speeds are the next, below (120 km / h when rounding off) or above (130 km / h when rounding up) the increased actual speed of 125 km / h, also by the setting button as a switching control element in steps of 10 km / h achievable speeds.



  The set button is both a switching control element and a setting control element.



  In the example according to FIG. 2, in contrast to the exemplary embodiment according to FIG. 1, the increased actual speed v = 105 km / h. According to the invention, actuation of the switching control element for incrementing, even in its function as a setting control element, is to result in an increase by at least one step, in this case 10 km / h, in a manner that is superior to all functions.



  Since, based on the currently specified speed of 100 km / h, the next higher speed that can be achieved by shifting up in stages is 110 km / h, this speed of 110 km / h is specified as the new speed, regardless of whether the speed is rounded up or down .



  The exemplary embodiment according to the invention makes it clear that not only the operating effort for a vehicle speed control system in motor vehicles, but also the number of necessary control gazes distracting from the traffic situation are reduced. Thus, both a gain in comfort and a gain in safety are achieved by the vehicle speed control system according to the invention.

Claims

Distance-based, electronically controlled vehicle speed control system
1.Distance-related, electronically controlled vehicle speed control system for motor vehicles, in which, during a first regular operation, a predetermined speed is basically kept constant until a predetermined minimum distance from a vehicle in front is reached or undershot and in which, during a second normal operation, one reaches or falls below this predetermined minimum distance Cruise control takes place in such a way that the specified minimum distance is maintained in the form of a distance-controlled follow-up drive, characterized in that in the event of an acceleration made by actuating the accelerator pedal (accelerating in control mode) during the first or second control mode above the currently specified speed (100 km / h) in addition to an increased actual speed (125 km / h; 105 km / h) a new one
Speed (120 km / h, 130 km / h; 1 10 km / h) depending on the increased actual speed is specified by operating a setting control element. 7
2. Distance-related electronically controlled vehicle speed control system according to claim 1, characterized in that the setting of the predetermined speed can also be carried out by a manually operated, speed incrementing switching control element, and that in the event of actuation of the
Setting control element after reaching an increased actual speed (125 km / h; 105 km / h) due to the acceleration made by operating the accelerator pedal during normal operation, the new predetermined speed that is closest to the actual speed, possibly above or below the increased actual speed speed achievable by the switching control element (130 km / h or 120 km / h; 110 km / h).
3. Distance-related electronically controlled vehicle speed control system according to claim 2, characterized in that the setting operating element is the same as the switching control element (set button).
4. Distance-related electronically controlled vehicle speed control system according to claim 2 or 3, characterized in that the actuation of the setting control element or the switching control element in any case leads to an increase in the predetermined speed by at least one step (10 km / h).
EP98965791A 1998-01-24 1998-12-09 Distance-related electronic driving speed regulating system Withdrawn EP1047571A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19802704A DE19802704A1 (en) 1998-01-24 1998-01-24 Distance-related, electronically controlled vehicle speed control system
DE19802704 1998-01-24
PCT/EP1998/007986 WO1999037498A1 (en) 1998-01-24 1998-12-09 Distance-related electronic driving speed regulating system

Publications (1)

Publication Number Publication Date
EP1047571A1 true EP1047571A1 (en) 2000-11-02

Family

ID=7855592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98965791A Withdrawn EP1047571A1 (en) 1998-01-24 1998-12-09 Distance-related electronic driving speed regulating system

Country Status (5)

Country Link
US (1) US6405820B1 (en)
EP (1) EP1047571A1 (en)
JP (1) JP2002500980A (en)
DE (1) DE19802704A1 (en)
WO (1) WO1999037498A1 (en)

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GB9826577D0 (en) * 1998-12-03 1999-01-27 Jaguar Cars Cruise control system speed display
IT1311458B1 (en) * 1999-11-19 2002-03-12 Fiat Auto Spa Method and automatic control device of speed 'and delladistanza of a vehicle.
DE10000094A1 (en) * 2000-01-04 2001-07-05 Ronny Kiesewetter Speed limiter for motor vehicle has selection unit enabling vehicle to be driven at selected target speed; selection, display units are arranged to enable intuitive operation to be performed
EP1247684A1 (en) * 2001-04-06 2002-10-09 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Control device for motor vehicle speed governor
DE10209137A1 (en) * 2002-03-01 2003-09-11 Bosch Gmbh Robert Input device for a speed control system in motor vehicles
DE10246059B4 (en) * 2002-10-02 2015-03-26 Robert Bosch Gmbh Method and device for controlling the speed of a vehicle
FR2937917B1 (en) * 2008-10-30 2012-11-16 Peugeot Citroen Automobiles Sa DRIVING STATION OF MOTOR VEHICLE
WO2010103604A1 (en) 2009-03-09 2010-09-16 トヨタ自動車株式会社 Vehicle running control device
DE112009004643B4 (en) 2009-04-08 2016-05-19 Toyota Jidosha Kabushiki Kaisha Vehicle driving control device
DE102010032999B4 (en) 2010-07-31 2019-06-19 Audi Ag Method for operating a motor vehicle while limiting the speed and motor vehicle

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US5014200A (en) 1990-02-20 1991-05-07 General Motors Corporation Adaptive cruise system
JPH06255389A (en) 1991-02-26 1994-09-13 Mitsubishi Electric Corp Traveling controller for vehicle
DE4200694B4 (en) 1992-01-14 2004-04-29 Robert Bosch Gmbh Method for speed and distance control of a vehicle
DE4337872C2 (en) * 1992-12-22 1998-04-30 Mitsubishi Electric Corp Distance measuring device and vehicle speed control device for maintaining an inter-vehicle distance
US5477457A (en) * 1993-01-12 1995-12-19 Okada; Motohiro Cruise control system for motorcars
JPH06320985A (en) * 1993-05-19 1994-11-22 Mazda Motor Corp Vehicle speed control device
US5454442A (en) * 1993-11-01 1995-10-03 General Motors Corporation Adaptive cruise control
JPH07251651A (en) * 1994-03-15 1995-10-03 Nissan Motor Co Ltd Intervehicle distance control device
JP3380624B2 (en) * 1994-09-14 2003-02-24 マツダ株式会社 Vehicle running state detection device
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Title
See references of WO9937498A1 *

Also Published As

Publication number Publication date
DE19802704A1 (en) 1999-08-26
JP2002500980A (en) 2002-01-15
WO1999037498A1 (en) 1999-07-29
US6405820B1 (en) 2002-06-18

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