DE102019006736A1 - Method for operating a motor vehicle - Google Patents
Method for operating a motor vehicle Download PDFInfo
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- DE102019006736A1 DE102019006736A1 DE102019006736.3A DE102019006736A DE102019006736A1 DE 102019006736 A1 DE102019006736 A1 DE 102019006736A1 DE 102019006736 A DE102019006736 A DE 102019006736A DE 102019006736 A1 DE102019006736 A1 DE 102019006736A1
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- motor vehicle
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- drive unit
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 3
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- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
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- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE 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
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
- B60T7/22—Brake-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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2036—Electric differentials, e.g. for supporting steering vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0007—Measures or means for preventing or attenuating collisions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/10—Indicating wheel slip ; Correction of wheel slip
- B60L3/106—Indicating wheel slip ; Correction of wheel slip for maintaining or recovering the adhesion of the drive wheels
- B60L3/108—Indicating wheel slip ; Correction of wheel slip for maintaining or recovering the adhesion of the drive wheels whilst braking, i.e. ABS
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/006—Dynamic electric braking by reversing current, i.e. plugging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE 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
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/1755—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
- B60W10/184—Conjoint control of vehicle sub-units of different type or different function including control of braking systems with wheel brakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/40—Electrical machine applications
- B60L2220/46—Wheel motors, i.e. motor connected to only one wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/46—Drive Train control parameters related to wheels
- B60L2240/465—Slip
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2250/00—Driver interactions
- B60L2250/26—Driver interactions by pedal actuation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE 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
- B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
- B60T2201/02—Active or adaptive cruise control system; Distance control
- B60T2201/024—Collision mitigation systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
- B60T8/3215—Systems characterised by having means acting on components of the drive line, e.g. retarder, clutch or differential gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
- B60T8/3255—Systems in which the braking action is dependent on brake pedal data
- B60T8/3275—Systems with a braking assistant function, i.e. automatic full braking initiation in dependence of brake pedal velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/91—Electric vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Regulating Braking Force (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zum Betrieb eines Kraftfahrzeugs (1) mit zumindest einer elektrischen Antriebseinheit (2 bis 5) und einer Bremsanlage (10), welche auf Räder (6 bis 9) des Kraftfahrzeugs (1) wirkt, wobei die zumindest eine elektrische Antriebseinheit (2 bis 5) zur Erzeugung einer Vorwärtsbewegung in einer ersten Rotationsrichtung betrieben wird. Erfindungsgemäß wird bei Erkennung einer Notsituation des Kraftfahrzeugs (1) und Erfassung einer mittels der Bremsanlage (10) ausgeführten Dauerbremsung die zumindest eine elektrische Antriebseinheit (2 bis 5) im mechanisch gekoppelten Zustand mit zumindest einem mittels dieser angetriebenen Rad (6 bis 9) automatisch zumindest zeitweise in einer der ersten Rotationsrichtung entgegengesetzten zweiten Rotationsrichtung betrieben.The invention relates to a method for operating a motor vehicle (1) with at least one electrical drive unit (2 to 5) and a brake system (10) which acts on wheels (6 to 9) of the motor vehicle (1), the at least one electrical drive unit (2 to 5) is operated to generate a forward movement in a first direction of rotation. According to the invention, when an emergency situation of the motor vehicle (1) is detected and continuous braking is carried out by means of the brake system (10), the at least one electric drive unit (2 to 5) in the mechanically coupled state with at least one wheel (6 to 9) driven by the latter is automatically at least temporarily operated in a second direction of rotation opposite to the first direction of rotation.
Description
Die Erfindung betrifft ein Verfahren zum Betrieb eines Kraftfahrzeugs gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a method for operating a motor vehicle according to the preamble of
Aus der
Weiterhin ist aus der
Die
Der Erfindung liegt die Aufgabe zu Grunde, ein neuartiges Verfahren zum Betrieb eines Kraftfahrzeugs anzugeben.The invention is based on the object of specifying a novel method for operating a motor vehicle.
Die Aufgabe wird erfindungsgemäß mit einem Verfahren gelöst, welches die im Anspruch 1 angegebenen Merkmale aufweist.The object is achieved according to the invention with a method which has the features specified in
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.
Dargestellt ist ein Verfahren zum Betrieb eines Kraftfahrzeugs mit zumindest einer elektrischen Antriebseinheit und einer Bremsanlage, welche auf die Räder des Kraftfahrzeugs wirkt, wobei die zumindest eine elektrische Antriebseinheit zur Erzeugung einer Vorwärtsbewegung in einer ersten Rotationsrichtung betrieben wird.Shown is a method for operating a motor vehicle with at least one electric drive unit and a brake system, which acts on the wheels of the motor vehicle, the at least one electric drive unit being operated to generate a forward movement in a first direction of rotation.
Erfindungsgemäß wird bei Erkennung einer Notsituation des Kraftfahrzeugs und Erfassung einer mittels der Bremsanlage ausgeführten Dauerbremsung die zumindest eine elektrische Antriebseinheit im mechanisch gekoppelten Zustand mit zumindest einem mittels dieser angetriebenen Rad automatisch zumindest zeitweise in einer der ersten Rotationsrichtung entgegengesetzten zweiten Rotationsrichtung betrieben.According to the invention, when an emergency situation of the motor vehicle is detected and continuous braking is carried out by means of the brake system, the at least one electric drive unit in the mechanically coupled state is automatically operated at least temporarily in a second direction of rotation opposite to the first direction of rotation with at least one wheel driven by the latter.
Mittels des Verfahrens kann zwischen dem zumindest einen Rad, welches sich aufgrund des Betriebs der elektrischen Antriebseinheit in der zweiten Rotationsrichtung entgegen zur eigentlichen Drehrichtung bei Vorwärtsfahrt des Kraftfahrzeugs dreht, eine Reibkraft zwischen diesem Rad und einer Fahrbahnoberfläche erhöht werden. Hieraus resultiert eine Verkürzung eines Bremswegs des Kraftfahrzeugs, insbesondere auch auf einer schneebedeckten Fahrbahn, eine Verringerung einer Gefahr von Unfällen und daraus folgend eine Erhöhung einer Verkehrssicherheit.By means of the method, a frictional force between this wheel and a road surface can be increased between the at least one wheel, which rotates in the second direction of rotation due to the operation of the electric drive unit in the second direction of rotation when the motor vehicle is moving forward. This results in a shortening of the braking distance of the motor vehicle, in particular also on a snow-covered road, a reduction in the risk of accidents and consequently an increase in traffic safety.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand einer Zeichnung näher erläutert.Exemplary embodiments of the invention are explained in more detail below with reference to a drawing.
Dabei zeigt:
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1 schematisch ein Kraftfahrzeug in einer teiltransparenten Draufsicht.
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1 schematically a motor vehicle in a partially transparent top view.
In der einzigen
Das Kraftfahrzeug
Um einen Bremsweg des Kraftfahrzeugs
In einer möglichen Ausgestaltung erfolgt der Betrieb der zumindest einen Antriebseinheit
Die Erkennung einer Notsituation erfolgt anhand von mittels einer Fahrzeugsensorik erfassten Umgebungsdaten und fahrzeugeigenen Daten.An emergency situation is identified on the basis of ambient data and vehicle-specific data acquired by means of vehicle sensors.
Beispielsweise erfolgt eine Erkennung eines drohenden Auffahrunfalls mittels einer fahrzeugeigenen Radarsensorik oder einer anderen geeigneten Sensorik, deren erfasste Daten beispielsweise auch für so genannte Presafe-Anwendungen und/oder einen so genannten Abstandsregeltempomaten des Kraftfahrzeugs
Die Erkennung der Dauerbremsung, beispielsweise einer Vollbremsung, erfolgt beispielsweise durch Sensoren eines Antiblockiersystems und gegebenenfalls weitere geeignete Sensoren, beispielsweise einer elektronischen Fahrdynamikregelung, und es wird automatisch zur mit der Bremsanlage
Eine Erkennung von Glätte auf einer Fahrbahnoberfläche erfolgt durch eine Erkennung eines Reifen-Schlupfes. Wird Glätte erkannt, wird die Funktion, bei welcher der Betrieb der zumindest einen Antriebseinheit
Eine solche Aktivierung einer Einsatzbereitschaft kann alternativ oder zusätzlich in Abhängigkeit eines Fahrpedal- und/oder Bremspedalweges erfolgen, wobei die Aktivierung beispielsweise bei einer abrupten Betätigungsrücknahme des Fahrpedals, das heißt, bei einer abrupten „Gaswegnahme“, bei welcher sich der Fahrpedalweg sehr schnell auf den Wert „Null“ ändert, und/oder bei einer besonders schnellen Betätigung des Bremspedals, erfolgt.Such activation of operational readiness can alternatively or additionally take place as a function of an accelerator pedal and / or brake pedal travel, the activation taking place, for example, when the accelerator pedal is abruptly withdrawn, that is, when the accelerator pedal is abruptly released, during which the accelerator pedal travel changes very quickly Value "zero" changes, and / or when the brake pedal is actuated particularly quickly.
In einer möglichen Ausgestaltung kann zusätzlich auch eine manuelle Auslösung der Funktion, bei welcher der Betrieb der zumindest einen Antriebseinheit
Um bei der Auslösung der Funktion, bei welcher der Betrieb der zumindest einen Antriebseinheit
Im dargestellten Ausführungsbeispiel ist jedem Rad
Bei dieser Steuerung werden in einer möglichen Ausgestaltung bei Erkennung der Notsituation und der Dauerbremsung Bremsen
Weiterhin ist es mittels der Steuerung unter Nutzung der fahrzeugeigenen Sensorik, beispielsweise einer Kamera, einem Radar und/oder Lidar, möglich, das Kraftfahrzeug
Beispielsweise werden bei Erkennung der Notsituation, der Dauerbremsung und einem in Fahrtrichtung links vom Kraftfahrzeug
Beispielsweise werden bei Erkennung der Notsituation, der Dauerbremsung und einem in Fahrtrichtung rechts vom Kraftfahrzeug
In einer weiteren Ausgestaltung kann mittels entsprechender Ansteuerung der Bremsen
BezugszeichenlisteReference list
- 11
- KraftfahrzeugMotor vehicle
- 2 bis 52 to 5
- AntriebseinheitDrive unit
- 6 bis 96 to 9
- Radwheel
- 1010th
- BremsanlageBraking system
- 11 bis 1411 to 14
- Bremsebrake
- 1515
- Steuereinheit Control unit
- RR
- RückwärtsbewegungBackward movement
- VV
- VorwärtsbewegungForward movement
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of documents listed by the applicant has been generated automatically and is only included 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.
Zitierte PatentliteraturPatent literature cited
- DE 102004031305 A1 [0002]DE 102004031305 A1 [0002]
- DE 4446485 A1 [0003]DE 4446485 A1 [0003]
- DE 69220003 T2 [0004]DE 69220003 T2 [0004]
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019006736.3A DE102019006736A1 (en) | 2019-09-26 | 2019-09-26 | Method for operating a motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019006736.3A DE102019006736A1 (en) | 2019-09-26 | 2019-09-26 | Method for operating a motor vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102019006736A1 true DE102019006736A1 (en) | 2020-03-26 |
Family
ID=69725315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102019006736.3A Withdrawn DE102019006736A1 (en) | 2019-09-26 | 2019-09-26 | Method for operating a motor vehicle |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102019006736A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022002678A1 (en) | 2022-07-22 | 2023-03-23 | Mercedes-Benz Group AG | Method of operating a vehicle |
DE102021128555A1 (en) | 2021-11-03 | 2023-05-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method and device for operating an at least two-axle land vehicle with optional drive on the front axle and rear axle |
DE102023000753A1 (en) | 2023-03-02 | 2024-09-05 | Mercedes-Benz Group AG | Method and device for brake support and/or driving dynamics support for a vehicle and vehicle |
-
2019
- 2019-09-26 DE DE102019006736.3A patent/DE102019006736A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021128555A1 (en) | 2021-11-03 | 2023-05-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method and device for operating an at least two-axle land vehicle with optional drive on the front axle and rear axle |
DE102021128555B4 (en) | 2021-11-03 | 2024-09-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method and device for operating a land vehicle with at least two axles with optional drive on the front axle and rear axle |
DE102022002678A1 (en) | 2022-07-22 | 2023-03-23 | Mercedes-Benz Group AG | Method of operating a vehicle |
DE102023000753A1 (en) | 2023-03-02 | 2024-09-05 | Mercedes-Benz Group AG | Method and device for brake support and/or driving dynamics support for a vehicle and vehicle |
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R230 | Request for early publication | ||
R081 | Change of applicant/patentee |
Owner name: DAIMLER AG, DE Free format text: FORMER OWNER: DAIMLER AG, 70327 STUTTGART, DE |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |