SE1550397A1 - Permanent brake device for a drive train of a motor vehicle - Google Patents
Permanent brake device for a drive train of a motor vehicle Download PDFInfo
- Publication number
- SE1550397A1 SE1550397A1 SE1550397A SE1550397A SE1550397A1 SE 1550397 A1 SE1550397 A1 SE 1550397A1 SE 1550397 A SE1550397 A SE 1550397A SE 1550397 A SE1550397 A SE 1550397A SE 1550397 A1 SE1550397 A1 SE 1550397A1
- Authority
- SE
- Sweden
- Prior art keywords
- pump
- brake device
- transmission
- permanent brake
- motor vehicle
- Prior art date
Links
Classifications
-
- 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
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/08—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels using fluid or powdered medium
- B60T1/093—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels using fluid or powdered medium in hydrostatic, i.e. positive displacement, retarders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
-
- 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
- B60T10/00—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope
- B60T10/04—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope with hydrostatic brake
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
- F16D57/06—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders comprising a pump circulating fluid, braking being effected by throttling of the circulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
- F16H37/046—Combinations of toothed gearings only change gear transmissions in group arrangement with an additional planetary gear train, e.g. creep gear, overdrive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/32—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members
- F04C2/332—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members with vanes hinged to the outer member and reciprocating with respect to the inner member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Braking Arrangements (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Description
lO
15
20
25
30
35
distinguished at the same time, however, by a compact
construction.
This object is achieved proceeding from the
precharacterizing clause of Claim l in conjunction with
its characterizing features. The dependent claims which
follow it in each case show advantageous developments
of the invention.
According' to the invention, a permanent brake device
for a drive train of a motor vehicle comprises a pump
which is provided. as a hydrostatic retarder and is
connected to a shaft of a transmission.
the
The pump which
is coupled to transmission therefore serves to
generate a braking torque which has its origin in the
torque which is tapped off by the pump when conveying
fluid.
pressure accumulator,
Here, the pump preferably conveys fluid into a
from which the fluid can escape
back via a throttle point into a storage vessel for
fluid.
pressure accumulator can possibly also be utilized by
with the
However, the fluid which is conveyed into the
other systems of the respective motor vehicle,
result that a recuperation of braking energy is
performed as it were.
The invention then comprises the technical teaching
that the pump is integrated into the transmission. In
other words, the pump which operates as a hydrostatic
retarder is therefore arranged within a housing of the
transmission, with the result that a compact
arrangement thereof is possible and at the same time
reliable protection against environmental influences
can also be realized. Furthermore, it is possible as a
reduce
the
result to production since certain
pump, feed
can possibly also be configured by the
outlay,
components of such as lines and
discharge lines,
transmission housing of the transmission.
lO
15
20
25
30
35
In contrast to this, the pump in the case of DE 197 35
287 Al is provided separately from the transmission on
the drive train. To this extent, the pump is subjected
to environmental influences in some circumstances and
the installation space is enlarged correspondingly on
account of the arrangement.
According to one embodiment of the invention, the
transmission. is a group transmission, the pump being
arranged between a main group and a range group of the
group transmission in one development of said
embodiment. Here, the range group is preferably
configured as a planetary gear mechanism with a
planetary stage which is then composed in a way which
is known to a person skilled in the art of an internal
and
gear, a planet spider which guides planetary gears,
a sun gear, a configuration as a negative planetary set
or as a positive planetary set being possible here in
principle.
refinement of the
to which the
According to one developing
invention, that shaft of the transmission,
pump is coupled, connects the main group and the range
group to one another. As an alternative, the shaft is
an output shaft of the transmission. Whereas a braking
action which can be caused by the pump can therefore
still be stepped up correspondingly by the range group
in the first-mentioned
which. is connected. downstream
case, a braking torque can also be caused at wheels of
the motor vehicle in the second-mentioned case when a
in the
shifting operation is currently taking place
range group.
It is a further embodiment of the invention that a
delivery volume of the pump is variable. Here, the pump
then delivers liquid only in braking phases, with the
result that a braking torque is generated only at the
The
configured as a
desired times. particularly preferably
which
pump is
pendulum-slider pump, in
lO
15
20
25
30
35
different delivery volumes can be produced without
problems by way of corresponding deflections. In order
to keep losses as low as possible in the process, an
outer ring of the pendulum-slider pump is nwunted in
its housing such that it can be rotated via an anti-
friction bearing in one development of the invention.
the
The restricted to
combination of features of the main claim or the claims
invention is not specified
which are dependent thereon. Moreover, possibilities
arise to combine individual features with one another,
even in so far as they are apparent from the claims,
the following description of preferred embodiments of
the the The
reference of the claims to the drawings by way of the
invention or directly from drawings.
use of designations is not intended to restrict the
scope of protection of the claims.
Advantageous refinements of the invention which will be
explained in the following text are shown in the
drawings, in which:
Fig. l shows a diagrammatic view of a permanent
brake device in accordance with a first
embodiment of the invention, and
Fig. 2 shows a diagrammatic illustration of a
permanent brake device according to a second
possible refinement of the invention.
Fig. l shows a diagrammatic view of a permanent brake
device in accordance with a first embodiment of the
invention, which permanent brake device has a
hydrostatic retarder ]_ in the fonn of za pump 2, the
pump 2 being a pendulum-slider pump. An outer ring of
said pendulum-slider pump ii; mounted iJ1 a housing of
it can be rotated via an anti-
the
the pump 2 such that
friction bearing. Here, pump 2 is additionally
integrated into a transmission 3 which is designed as a
10
15
20
25
30
35
group transmission with a main group 4 and a range
group 5 which is connected downstream of the main group
4.
As can be seen fron1 Fig. 1, the pump 2 is arranged
between the main group 4 and the range group 5 and is
driven here via a shaft 6 which connects the main group
4 on the output side to the input side of the range
group 5.
Away from braking operation, the pump 2 is actuated in
such a way that no delivery or virtually no delivery of
a liquid takes place and accordingly only very small
torque losses are also introduced into the shaft 6 as a
result of the coupled motion of the pump 2. If braking
of the motor vehicle is then to be realized with the
aid of the the
actuated
hydrostatic retarder 1, pump 2 is
its increased
the
which
delivery of the liquid takes place here into a pressure
and delivery quantity is
delivery quantity defining the
the shaft 6 here. A
correspondingly,
braking torque acts on
accumulator (not shown in further detail in the present
case) and counter to a throttle point.
In the present case, the range group 5 which is
connected downstream. of the pump 2 is formed by a
planetary stage 7 which is composed of the components
internal gear 8, planetary carrier 9 and sun gear 10.
gear 10 is arranged fixedly on the shaft
with it, the
Here, the sun
6 so as to rotate whereas planetary
carrier 9 is connected. to an output shaft 11 of the
transmission 3. In order to produce different
transmission ratios of the range group 5, the internal
gear 8 can firstly' be fixed. on. a housing' 13 of the
transmission 3 by næans of a shifting device 12, and
secondly can be coupled fixedly to the planetary
carrier 9 and therefore also the output shaft 11 so as
to rotate with it. On account of the arrangement of the
pump 2 in the force flow, braking of the motor vehicle
10
15
20
25
can be produced. via the hydrostatic retarder~ l only
when one of the two transmission ratios is selected in
the range group 5.
Furthermore, a diagrammatic illustration of a permanent
brake device in accordance with a second possible
refinement of the invention is apparent from Fig. 2.
Here, this refinement corresponds as far as possible to
the variant according to Fig. 1, in contrast to this a
pump 14 being connected to the planetary carrier 9 of
the range group 5 and therefore also the output shaft
ll. In order to connect the range group 5 to the main
group 4 which is upstream of it, a shaft 15 is then
guided axially through the pump 14 here. Otherwise, the
refinement according to Fig. 2 corresponds to the
variant according to Fig. 1, with the result that
reference is made to what has been described in this
regard.
By means of the refinements according to the invention
high braking torques can
the
of a permanent brake device,
already be produced even at low rotational speeds,
devices being distinguished in each case by a compact
construction.
Claims (8)
- l. Permanent brake device for a drive train of a motor vehicle, comprising a pump (2) which is provided as a hydrostatic retarder (l) and is coupled to a shaft (3), (2) is integrated into the transmission characterized in that the pump (3). of a transmission
- 2. Permanent brake device according to Claim l, characterized in that the transmission (3) is a group transmission.
- 3. Permanent brake device according to Claim 2, characterized in that the pump (2) is arranged between a main group (4) and a range group (5) of the group transmission.
- 4. Permanent brake device according to Claim 3, characterized in that the shaft (6) connects the main group (4) and the range group (5) to one another.
- 5. Permanent brake device according to Claim 3, characterized in that the shaft is an output shaft (ll) of the transmission (3).
- 6. Permanent brake device according to Claim l, characterized in that a delivery volume of the pump (2) is variable.
- 7. Permanent brake device according to Claim 6, characterized in that the pump (2) is a pendulum-slider pump. 8. Permanent brake device according to Claim 7, characterized in that an outer ring of the pendulum- slider pump is mounted in its housing such that it can be rotated via an anti-friction bearing. 9. Drive train of a motor vehicle, comprising a permanent brake device according to one of Claims l to
- 8.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014206679.4A DE102014206679A1 (de) | 2014-04-07 | 2014-04-07 | Dauerbremseinrichtung für einen Antriebsstrang eines Kraftfahrzeuges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE1550397A1 true SE1550397A1 (sv) | 2015-10-08 |
Family
ID=54146434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1550397A SE1550397A1 (sv) | 2014-04-07 | 2015-04-02 | Permanent brake device for a drive train of a motor vehicle |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN204845898U (sv) |
| DE (1) | DE102014206679A1 (sv) |
| SE (1) | SE1550397A1 (sv) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3536928A1 (de) * | 1984-10-24 | 1986-04-30 | Zahnradfabrik Friedrichshafen | Antriebsanordnung fuer nutzkraftfahrzeuge |
| DE19735287A1 (de) | 1997-08-14 | 1999-02-18 | Zahnradfabrik Friedrichshafen | Hydrostatischer Retarder mit Nebenabtrieb |
| DE102006046965A1 (de) * | 2006-06-02 | 2007-12-06 | Bosch Rexroth Ag | Antrieb mit Bremsenergierückgewinnung |
| DE102012208244A1 (de) * | 2012-05-16 | 2013-11-21 | Zf Friedrichshafen Ag | Fahrzeuggetriebe mit einem hydrodynamischen Retarder |
-
2014
- 2014-04-07 DE DE102014206679.4A patent/DE102014206679A1/de not_active Withdrawn
-
2015
- 2015-04-02 SE SE1550397A patent/SE1550397A1/sv not_active Application Discontinuation
- 2015-04-03 CN CN201520201572.6U patent/CN204845898U/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014206679A1 (de) | 2015-10-08 |
| CN204845898U (zh) | 2015-12-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |