EP1572513A1 - Systeme de freinage et procede pour faire fonctionner un systeme de freinage pour vehicules electriques - Google Patents
Systeme de freinage et procede pour faire fonctionner un systeme de freinage pour vehicules electriquesInfo
- Publication number
- EP1572513A1 EP1572513A1 EP03789292A EP03789292A EP1572513A1 EP 1572513 A1 EP1572513 A1 EP 1572513A1 EP 03789292 A EP03789292 A EP 03789292A EP 03789292 A EP03789292 A EP 03789292A EP 1572513 A1 EP1572513 A1 EP 1572513A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- brake
- control
- braking
- brake system
- electrically actuated
- 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- Withdrawn
Links
Classifications
-
- 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
- B60L7/24—Electrodynamic brake systems for vehicles in general with additional mechanical or electromagnetic braking
-
- 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
- B60T13/10—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 fluid assistance, drive, or release
- B60T13/58—Combined or convertible systems
- B60T13/585—Combined or convertible systems comprising friction brakes and retarders
- B60T13/586—Combined or convertible systems comprising friction brakes and retarders the retarders being of the electric type
-
- 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
Definitions
- the present invention relates to a brake system for electrically powered vehicles.
- the invention further relates to a method for operating a brake system for electrically powered vehicles.
- electrically driven vehicles in particular industrial trucks for large lifting loads and / or high driving speeds, have hydraulically or mechanically actuated service brakes which can be controlled by the vehicle driver or operator.
- the traction motor is also used for braking, this taking place depending on the brake pedal position.
- Brake systems an additional pressure medium or brake fluid in the electrically powered vehicle.
- the pressure medium due to its hygroscopic properties, the pressure medium must be replaced regularly.
- such brake systems have to be vented during assembly and service.
- DE 196 48 979 AI describes a drive axle with two traction motors, in which the first traction motor is connected to a first output shaft and the second traction motor is connected to a second output shaft for driving a wheel, wherein a brake is arranged axially between the traction motors, which at least has a brake rotor which is axially displaceable on the first output shaft and at least one brake rotor which is axially displaceable on the second output shaft, and the brake rotors can be operatively connected to a brake stator by means of at least one brake actuation device which generates an axial force.
- the present invention has for its object to provide a braking system for an electrically powered vehicle, in particular an industrial truck, which can be implemented without additional media, such as brake fluid.
- the brake system should be clearly meterable for the driver and should create an optimal interaction between the braking effect of the drive motors and the service brake under all driving conditions.
- a method for operating the brake system is to be specified. This object is achieved for a brake system by the features of patent claim 1.
- a method for operating the brake system is the subject of claim 9. Further refinements and advantages emerge from the subclaims.
- a brake system which contains at least one electrically actuated service brake as the service brake, the control of which can be integrated directly into the vehicle control or into the engine control.
- the engine brake is also used.
- the most effective combination of the electric motor brake and the service brake is determined by the brake management or by the brake control depending on the driving state.
- AC motors contain a position / speed sensor, the information of which, according to the invention, is also passed on to the brake management or to the brake control.
- the braking force of the service brake can then be applied depending on the braking effect of the driving motor or the driving motors and the driver's specification (via a brake pedal or brake lever actuation).
- the characteristic curve between pedal force or pedal travel and braking force is influenced in the control if necessary.
- Fig. 1 is a schematic representation of the brake system according to the present invention for a drive axle with two electric motors and
- Fig. 2 is a schematic representation of the brake system according to the present invention for a drive axle with an electric motor.
- an electrically actuated brake 5 is provided as the service brake, which is arranged between the electric motors 2 within the scope of the embodiment shown in the figure.
- the control of the electrically actuated brake 5 is preferably directly in the vehicle control or in the engine control 6
- the engine brake is also used, the most effective combination of the electric motor brake and service brake being determined depending on the driving state, from the electrically actuated brake 5 and the engine brake according to the method according to the invention for operating the brake system and the engine brake.
- the motor control 6 and the brake control 7 can be integrated into one device or, as shown in the figure, can be arranged spatially separated, in which case the
- Connection preferably takes place via a bus system.
- position / speed sensors 8 are used, which are provided in any case with AC motors, the information of which, according to the invention, is also passed on to the brake management or to the brake control 7 for evaluating the braking effect of the electric motors 2.
- the electrically actuated service brake 5 is controlled as a function of the braking effect of the driving motor or driving motor 2 determined by the brake control 7 and the specification entered by the driver via an actuation of the brake pedal 9 or a brake lever.
- FIG. 2 shows a schematic illustration of the brake system according to the present invention for a drive axle 1 with an electric motor 2.
- the drive power of the electric motor 2 is transmitted to the wheels 4 via a gear 3 and a differential 10.
- an electrically actuated brake 5 is provided as a service brake between the differential 9 and each wheel 4.
- the signals from the position / speed sensor 8 of the electric motor 2 are used and forwarded to the brake management or to the brake control 7 for evaluating the braking effect of the electric motor 2.
- the braking system presented here can be de-energized in the braked or unbraked state; in addition, the braking force can be kept constant when the electrical energy drops. In the context of an advantageous variant of the method for operating the brake system, the braking force can assume a certain value in a time-controlled or event-controlled manner if the electrical energy drops.
- a further embodiment of the present invention provides that - if necessary - a mechanical or hydraulic emergency braking or emergency actuation system is integrated as a subordinate unit in the braking system.
- the service brake 5 can also act as a parking brake; as brake actuators for the electrically actuated brake 5, according to the invention, electromagnetic, electromotive or also piezoelectric actuators can be used.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
La présente invention concerne un système de freinage destiné à des véhicules électriques, comprenant au moins un frein de service (5) à commande électrique et au moins un frein moteur (2).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10259878A DE10259878A1 (de) | 2002-12-20 | 2002-12-20 | Bremssystem und Verfahren zum Betrieb eines Bremssystems für elektrisch angetriebene Fahrzeuge |
DE10259878 | 2002-12-20 | ||
PCT/EP2003/014288 WO2004058552A1 (fr) | 2002-12-20 | 2003-12-16 | Systeme de freinage et procede pour faire fonctionner un systeme de freinage pour vehicules electriques |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1572513A1 true EP1572513A1 (fr) | 2005-09-14 |
Family
ID=32404028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03789292A Withdrawn EP1572513A1 (fr) | 2002-12-20 | 2003-12-16 | Systeme de freinage et procede pour faire fonctionner un systeme de freinage pour vehicules electriques |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060152078A1 (fr) |
EP (1) | EP1572513A1 (fr) |
DE (1) | DE10259878A1 (fr) |
WO (1) | WO2004058552A1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7500687B2 (en) * | 2004-01-31 | 2009-03-10 | Lockheed Martin Corporation | Vehicle suspension systems |
JP4659390B2 (ja) * | 2004-05-31 | 2011-03-30 | 富士重工業株式会社 | 車両制動装置および車両制動方法 |
US7393065B2 (en) * | 2006-06-01 | 2008-07-01 | Lockheed Martin Corporation | Redundant braking system |
US20080066613A1 (en) * | 2006-09-15 | 2008-03-20 | Lockheed Martin Corporation | Perforated hull for vehicle blast shield |
US20080173167A1 (en) | 2006-09-15 | 2008-07-24 | Armor Holdings | Vehicular based mine blast energy mitigation structure |
DE102007028688A1 (de) * | 2007-06-21 | 2008-12-24 | Jungheinrich Aktiengesellschaft | Automatische Federspeicherbremse für Flurförderzeug (FFZ) |
DE102010030827A1 (de) * | 2010-07-01 | 2012-01-05 | Zf Friedrichshafen Ag | Elektrofahrzeug |
DE102017215680A1 (de) | 2017-09-06 | 2019-03-07 | Zf Friedrichshafen Ag | Verfahren zum Abbremsen eines Fahrzeuges und Vorrichtung zur Durchführung |
DE102018106479A1 (de) * | 2018-03-20 | 2019-09-26 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Bremsvorrichtung |
DE102021209488A1 (de) | 2021-08-30 | 2023-03-02 | Zf Friedrichshafen Ag | Elektrofahrzeug mit mindestens einem Bremssystem und Verfahren zum Betreiben eines Elektrofahrzeugs |
DE102022132055A1 (de) * | 2022-12-02 | 2024-06-13 | Jungheinrich Aktiengesellschaft | Antriebsachsen-Anordnung für ein Flurförderzeug |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19810656A1 (de) * | 1998-03-12 | 1999-09-16 | Itt Mfg Enterprises Inc | Verfahren und Vorrichtung zum statischen oder dynamischen Ermitteln von Sollwerten für Bremskräfte oder Bremsmomente |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4962969A (en) * | 1988-09-30 | 1990-10-16 | Ford Motor Company | Adaptive controller for regenerative and friction braking system |
DE4139443C2 (de) * | 1991-11-29 | 1995-04-06 | Mannesmann Ag | Antriebs- und Bremsanordnung für ein Kraftfahrzeug |
US5492192A (en) * | 1994-08-22 | 1996-02-20 | General Motors Corporation | Electric vehicle with traction control |
DE9414054U1 (de) * | 1994-08-31 | 1994-11-03 | Riepl, Gerhard, 88605 Meßkirch | Elektrischer Energiesparantrieb für Kleinfahrzeuge |
SE520894C2 (sv) * | 1997-10-07 | 2003-09-09 | Bt Ind Ab | Förfarande för att bromsa ett elmotordrivet fordon |
US6033042A (en) * | 1998-03-03 | 2000-03-07 | General Motors Corporation | Vehicle brake system with powertrain dynamic braking |
JP3365301B2 (ja) * | 1998-03-19 | 2003-01-08 | トヨタ自動車株式会社 | 車両の制動エネルギー制御装置とその制御方法 |
DE19912425A1 (de) * | 1999-03-19 | 2000-07-27 | Siemens Ag | Kombinierte Kraftfahrzeug-Bremsvorrichtung |
JP3915391B2 (ja) * | 2000-09-14 | 2007-05-16 | トヨタ自動車株式会社 | 車輌の制動力制御装置 |
GB0130006D0 (en) * | 2000-12-21 | 2002-02-06 | Inpharmatica Ltd | Annotation method |
-
2002
- 2002-12-20 DE DE10259878A patent/DE10259878A1/de not_active Withdrawn
-
2003
- 2003-12-16 WO PCT/EP2003/014288 patent/WO2004058552A1/fr active Application Filing
- 2003-12-16 EP EP03789292A patent/EP1572513A1/fr not_active Withdrawn
- 2003-12-16 US US10/539,653 patent/US20060152078A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19810656A1 (de) * | 1998-03-12 | 1999-09-16 | Itt Mfg Enterprises Inc | Verfahren und Vorrichtung zum statischen oder dynamischen Ermitteln von Sollwerten für Bremskräfte oder Bremsmomente |
Non-Patent Citations (1)
Title |
---|
See also references of WO2004058552A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2004058552A1 (fr) | 2004-07-15 |
DE10259878A1 (de) | 2004-07-01 |
US20060152078A1 (en) | 2006-07-13 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20050527 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR IT SE |
|
17Q | First examination report despatched |
Effective date: 20100615 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20101026 |