DE102018216669A1 - Brake system for a vehicle and vehicle with a brake system - Google Patents
Brake system for a vehicle and vehicle with a brake system Download PDFInfo
- Publication number
- DE102018216669A1 DE102018216669A1 DE102018216669.2A DE102018216669A DE102018216669A1 DE 102018216669 A1 DE102018216669 A1 DE 102018216669A1 DE 102018216669 A DE102018216669 A DE 102018216669A DE 102018216669 A1 DE102018216669 A1 DE 102018216669A1
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- Germany
- Prior art keywords
- brake system
- voltage
- battery cells
- vehicle
- actuators
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/741—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on an ultimate actuator
-
- 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
-
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
-
- 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
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/40—Failsafe aspects of brake control systems
- B60T2270/414—Power supply failure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
- H01M2200/103—Fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Systems And Boosters (AREA)
Abstract
Die Erfindung betrifft eine Bremsanlage (10) für ein Fahrzeug (100), mit einer Parkbremse (30), die wenigstens zwei elektrisch betriebene Aktuatoren (32, 34) zum Abbremsen jeweils eines Rades (3, 4) des Fahrzeugs (10) umfasst, und mit einer Spannungsquelle (40) zur Energieversorgung der wenigstens zwei Aktuatoren (32, 34).The invention relates to a brake system (10) for a vehicle (100), comprising a parking brake (30) which comprises at least two electrically operated actuators (32, 34) for braking one wheel (3, 4) of the vehicle (10), and with a voltage source (40) for supplying energy to the at least two actuators (32, 34).
Description
Technisches GebietTechnical field
Die Erfindung betrifft eine Bremsanlage für ein Fahrzeug. Weiterhin betrifft die Erfindung ein Fahrzeug, insbesondere ein teilautonom oder autonom fahrendes Fahrzeug, mit einer erfindungsgemäßen Bremsanlage.The invention relates to a brake system for a vehicle. Furthermore, the invention relates to a vehicle, in particular a partially autonomous or autonomously driving vehicle, with a brake system according to the invention.
Stand der TechnikState of the art
Eine Bremsanlage für ein Fahrzeug mit den Merkmalen des Oberbegriffs des Anspruchs 1 ist aus der
Offenbarung der ErfindungDisclosure of the invention
Die erfindungsgemäße Bremsanlage für ein Fahrzeug mit den Merkmalen des Anspruchs 1 hat den Vorteil, dass mit verhältnismäßig geringem vorrichtungstechnischem Aufwand bei einem Ausfall von einzelnen Batteriezellen der Spannungsquelle die Funktionalität der Parkbremse gewährleistet ist. Der Erfindung liegt die Idee zugrunde, die als eine einzige Baueinheit aus einer Reihenschaltung von mehreren Batteriezellen gebildete Spannungsquelle derart mit den Aktuatoren zu koppeln, dass jeder der wenigstens zwei Aktuatoren der Parkbremse mit einer Teilanzahl der Batteriezellen elektrisch verbunden und somit mit der von der Teilanzahl der Batteriezellen erzeugten Teilspannung betreibbar ist. Dies hat den Vorteil, dass im Regelfall beim Ausfall einzelner Batteriezellen sogar beide Aktuatoren weiterhin aktivierbar sind, d.h., dass von den wenigstens zwei Aktuatoren weiterhin auf die Räder Bremskräfte ausgeübt werden können.The brake system according to the invention for a vehicle with the features of claim 1 has the advantage that the functionality of the parking brake is ensured with relatively little outlay in terms of device technology in the event of failure of individual battery cells of the voltage source. The invention is based on the idea of coupling the voltage source, which is formed as a single structural unit from a series connection of a plurality of battery cells, to the actuators in such a way that each of the at least two actuators of the parking brake is electrically connected to a part number of the battery cells and thus to the part number of the Battery cells generated partial voltage is operable. This has the advantage that, as a rule, if individual battery cells fail, even both actuators can still be activated, i.e. braking forces can still be exerted on the wheels by the at least two actuators.
Vorteilhafte Weiterbildungen der erfindungsgemäßen Bremsanlage für ein Fahrzeug sind in den Unteransprüchen aufgeführt.Advantageous developments of the brake system according to the invention for a vehicle are listed in the subclaims.
In einer bevorzugten schaltungstechnischen Anordnung der Batteriezellen der Spannungsquelle sowie der Aktuatoren ist es vorgesehen, dass die Spannungsquelle eine gerade Anzahl von Batteriezellen aufweist, und dass die wenigstens zwei Aktuatoren mit jeweils der Hälfte der Anzahl der Batteriequellen elektrisch gekoppelt sind. Mit anderen Worten gesagt bedeutet dies, dass jeder der beiden Aktuatoren mit jeweils der Hälfte der Gesamtspannung der Spannungsquelle betreibbar ist. In der Praxis hat es sich dabei herausgestellt, dass dadurch weiterhin an sich bekannte Aktuatoren bzw. Endstufen zur Betätigung von Stellgliedern der Aktuatoren verwendet werden können. Der Betrieb derartiger Endstufen bzw. Aktuatoren mit der Hälfte der Spannung hat dabei lediglich zur Folge, dass die Schaltgeschwindigkeit bzw. das Ansprechverhalten der Aktuatoren bzw. Bremsen an dem Fahrzeug zeitlich etwas verzögert wird, was in der Praxis bei der Verwendung in Parkbremsanlagen jedoch vertretbar ist.In a preferred circuit arrangement of the battery cells of the voltage source and of the actuators, it is provided that the voltage source has an even number of battery cells and that the at least two actuators are each electrically coupled to half the number of battery sources. In other words, this means that each of the two actuators can be operated with half the total voltage of the voltage source. In practice, it has been found that actuators or output stages known per se can continue to be used for actuating actuators of the actuators. The operation of such output stages or actuators with half the voltage only has the consequence that the switching speed or the response behavior of the actuators or brakes on the vehicle is delayed somewhat, which is, however, justifiable in practice when used in parking brake systems .
Ganz besonders bevorzugt ist es, wenn eine Spannungsteilerschaltung vorgesehen ist, die dazu ausgebildet ist, bei Ausfall wenigstens einer Batteriezelle einen Aktuator mit den Teilspannungen aus den intakten Batteriezellen mit Energie zu versorgen. Das bedeutet, dass die Spannungsteilerschaltung so ausgebildet ist, dass lediglich die defekte bzw. nicht ordnungsgemäß arbeitende Batteriezelle elektrisch überbrückt wird, und der Aktuator mit sämtlichen verbleibenden intakten Batteriezellen mit Spannung versorgt wird. Insbesondere ermöglicht es eine derartige Schaltungsanordnung, bei Ausfall jeder beliebigen Batteriezelle diese elektrisch überbrücken zu können. Dadurch wird eine besonders hohe Ausfallsicherheit der Bremsanlage insgesamt erzielt.It is very particularly preferred if a voltage divider circuit is provided which is designed to supply an actuator with the partial voltages from the intact battery cells in the event of failure of at least one battery cell. This means that the voltage divider circuit is designed such that only the defective or improperly working battery cell is electrically bridged and the actuator is supplied with voltage with all remaining intact battery cells. In particular, such a circuit arrangement enables any battery cell to be electrically bridged in the event of failure. As a result, a particularly high reliability of the brake system as a whole is achieved.
In Weiterbildung des zuletzt gemachten Vorschlags ist es vorgesehen, dass jede der Batteriezellen mit einer Spannungsüberwachungseinrichtung ausgestattet ist, und dass eine Schaltung der Batteriezellen die Spannungsteilerschaltung in Abhängigkeit der Spannungsüberwachung ausführt. Die Schaltung koppelt somit bei einem entsprechenden Ansprechen der Spannungsüberwachung an einer Batteriezelle die intakten bzw. innerhalb bestimmter Toleranzen befindlichen Batteriezellen zu der Spannungsquelle zusammen, die zur Versorgung des entsprechenden Aktuators dient.In a further development of the last proposal, it is provided that each of the battery cells is equipped with a voltage monitoring device and that a circuit of the battery cells executes the voltage divider circuit as a function of the voltage monitoring. When the voltage monitoring on a battery cell responds appropriately, the circuit thus couples the intact battery cells or those within certain tolerances to the voltage source, which is used to supply the corresponding actuator.
In einer weiteren konstruktiven Ausgestaltung der elektrischen Schaltung ist es vorgesehen, dass jeder Spannungsversorgung eines Aktuators eine Sicherung zugeordnet ist, die bei einem Kurzschluss zwischen dem Pluspol und elektrischer Masse ausgelöst.In a further constructive embodiment of the electrical circuit, it is provided that a fuse is assigned to each voltage supply of an actuator, which fuse is triggered in the event of a short circuit between the positive pole and electrical ground.
Der Aktuator umfasst (neben einem Elektromotor) insbesondere eine von der Spannungsquelle versorgte elektronische Endstufe in einem Steuergerät, insbesondere einem ESP-Steuergerät.The actuator comprises (in addition to an electric motor) in particular an electronic output stage supplied by the voltage source in a control unit, in particular an ESP control unit.
Die Bremsanlage umfasst vorzugsweise zwei Aktuatoren, wobei der erste Aktuator einem linken Hinterrad und der zweite Aktuator einem rechten Hinterrad des Fahrzeugs zugeordnet ist. The brake system preferably comprises two actuators, the first actuator being assigned to a left rear wheel and the second actuator being assigned to a right rear wheel of the vehicle.
Die Erfindung umfasst darüber hinaus ein Fahrzeug, insbesondere ein teilautonom oder (vollständig) autonom fahrendes Fahrzeug mit einer soweit beschriebenen erfindungsgemäßen Bremsanlage.The invention also includes a vehicle, in particular a partially autonomous or (completely) autonomously driving vehicle with a brake system according to the invention described so far.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung.Further advantages, features and details of the invention result from the following description of preferred exemplary embodiments and from the drawing.
Diese zeigt in:
-
1 eine schematische Darstellung eines Fahrzeugs mit einer Bremsanlage und einer Parkbremse und -
2 eine schematische Darstellung einer bei dem Fahrzeug gemäß1 verwendeten Spannungsquelle zur Versorgung der Parkbremse mit Energie.
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1 a schematic representation of a vehicle with a brake system and a parking brake and -
2nd a schematic representation of a in the vehicle according to1 used voltage source to supply the parking brake with energy.
Gleiche Elemente bzw. Elemente mit gleicher Funktion sind in den Figuren mit den gleichen Bezugsziffern versehen.The same elements or elements with the same function are provided with the same reference numbers in the figures.
In der
Die Bremsanlage
Weiterhin umfasst die Bremsanlage
Das ESP-Steuergerät
Wie insbesondere anhand der
Jeder der Batteriezellen
Darüber hinaus sind insgesamt sechs Spannungspfade
Weiterhin sind zwei Sicherungen
Die soweit beschriebene Bremsanlage
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 102016123671 A1 [0002]DE 102016123671 A1 [0002]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102018216669.2A DE102018216669A1 (en) | 2018-09-28 | 2018-09-28 | Brake system for a vehicle and vehicle with a brake system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018216669.2A DE102018216669A1 (en) | 2018-09-28 | 2018-09-28 | Brake system for a vehicle and vehicle with a brake system |
Publications (1)
Publication Number | Publication Date |
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DE102018216669A1 true DE102018216669A1 (en) | 2020-04-02 |
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Application Number | Title | Priority Date | Filing Date |
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DE102018216669.2A Pending DE102018216669A1 (en) | 2018-09-28 | 2018-09-28 | Brake system for a vehicle and vehicle with a brake system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023006477A1 (en) * | 2021-07-30 | 2023-02-02 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Redundant electromechanical braking system and actuator therefor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015104293A1 (en) * | 2015-03-23 | 2016-09-29 | Hella Kgaa Hueck & Co. | Energy storage device |
DE102016123671A1 (en) * | 2015-12-10 | 2017-06-14 | Ford Global Technologies, Llc | Electric parking brake for autonomous vehicles |
DE102017218252A1 (en) * | 2017-10-12 | 2019-04-18 | Volkswagen Aktiengesellschaft | Energy storage arrangement for a motor vehicle, wiring system arrangement and method for providing a power supply for a motor vehicle |
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2018
- 2018-09-28 DE DE102018216669.2A patent/DE102018216669A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015104293A1 (en) * | 2015-03-23 | 2016-09-29 | Hella Kgaa Hueck & Co. | Energy storage device |
DE102016123671A1 (en) * | 2015-12-10 | 2017-06-14 | Ford Global Technologies, Llc | Electric parking brake for autonomous vehicles |
DE102017218252A1 (en) * | 2017-10-12 | 2019-04-18 | Volkswagen Aktiengesellschaft | Energy storage arrangement for a motor vehicle, wiring system arrangement and method for providing a power supply for a motor vehicle |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023006477A1 (en) * | 2021-07-30 | 2023-02-02 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Redundant electromechanical braking system and actuator therefor |
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