EP1258616A1 - Vorrichtung und Verfahren zum Bremsen und Halten einer Brennkraftmaschine für ein Fahrzeug - Google Patents
Vorrichtung und Verfahren zum Bremsen und Halten einer Brennkraftmaschine für ein Fahrzeug Download PDFInfo
- Publication number
- EP1258616A1 EP1258616A1 EP02291198A EP02291198A EP1258616A1 EP 1258616 A1 EP1258616 A1 EP 1258616A1 EP 02291198 A EP02291198 A EP 02291198A EP 02291198 A EP02291198 A EP 02291198A EP 1258616 A1 EP1258616 A1 EP 1258616A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- braking
- crankshaft
- brake
- gearbox
- motor vehicle
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 title claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 17
- 235000021183 entrée Nutrition 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
Definitions
- the invention relates to a device for braking and stopping a internal propulsion combustion of a motor vehicle which can be used in particular to stop the engine in a position facilitating a restart.
- Internal combustion engines in motor vehicles include at least one piston movable alternately in a cylinder and, generally, several pistons mounted mobile each in a cylinder, the piston or each of the pistons being connected to a crankshaft by a connecting rod the crankshaft rotating around an axis.
- the crankshaft generally secured to a flywheel at one of its ends, constitutes a rotating part of the engine ensuring the driving of the vehicle wheels, via the transmission.
- the internal combustion engine is started by an electric motor or a reversible alternator ensuring the rotation of the rotating part of the engine and the displacement of the pistons in the cylinders, for example, by means of a crown of drive integral with the crankshaft and a pinion or a belt.
- stop and start used to stop and restart the engine when the vehicle is stopped momentarily, for example in a vehicle queue
- stop and start used to stop and restart the engine when the vehicle is stopped momentarily, for example in a vehicle queue
- the power necessary to start the engine is essentially variable between a minimum starting power and maximum power which is around 30% higher than the minimum power.
- the starting power depends in particular on the position of the moving parts of the engine at a standstill before starting and especially the angular position of the rotating part of the motor comprising the crankshaft.
- Such a device requires the use of an electric rotating machine such as a reversible engine or alternator and a control module of the electric rotating machine.
- a braking device for the rotating part of the propulsion engine of a motor vehicle can therefore prove to be useful or essential for adjust the operation of the motor vehicle.
- the object of the invention is to propose a braking and stopping device an internal combustion propulsion engine of a motor vehicle, the motor comprising a rotating part comprising in particular a crankshaft and a transmission shaft rotated by the crankshaft, this simple and inexpensive form of braking and stopping device for stopping or braking the rotating part of the engine to optimize the operation of the motor vehicle.
- the braking and stopping device comprises at least a first brake element integral in rotation with the rotating part of the engine and at least one second brake element comprising at least one braking means of the first brake element and a means for controlling the passage of the braking means from an inactive position to a braking position, to brake the rotating part of the engine.
- the single figure is a schematic view of a vehicle engine automobile comprising a braking and stopping device according to the invention and its transmission.
- a motor with internal combustion 1 for propulsion of a motor vehicle comprising four cylinders in line and a crankshaft 2 connected to a first disc 3a a clutch 3 comprising two discs 3a and 3b which can be brought into cooperating position to drive in rotation, synchronously with the rotating part of the engine comprising the crankshaft 2, a shaft of transmission 4 constituting the input shaft of a gearbox 5 of the vehicle automobile.
- the gearbox 5 includes an output shaft 6 which ensures the transmission of the rotation to the wheels of the motor vehicle, via of a transmission 7 comprising, in the usual way, a bridge comprising a differential.
- the figure shows two braking and stopping devices according to the invention designated by the references 8a and 8b.
- the device according to the invention can comprise one or the other of the devices braking and stopping 8a and 8b or the two devices 8a and 8b used concurrently.
- the two devices 8a and 8b are identical, as regards their constitution, so that only one of the devices will be described, for example the device 8a.
- the device 8a comprises, as the first braking element, a brake disc 9a wedged on the end part of the crankshaft 2 (or on a shaft connected to the crankshaft), in a coaxial arrangement with the crankshaft 2, of so that it can rotate in synchronism with the rotating part of the motor comprising the crankshaft 2, as well as a braking caliper 11a constituting a second brake element comprising two brake pads 12a and 12'a located on either side of the disc 9a, facing a peripheral zone disc braking.
- the caliper 11a includes a device for moving the brake pads 12a and 12'a between an inactive position, in which the pads are not not in contact with the peripheral part of the disc, and a braking position, in which the pads come into contact with the peripheral area of disc 9a.
- the device for moving the brake pads 12a and 12'a of the bracket 11a is connected to an electronic control unit 10 which makes it possible to apply modulated braking and possibly stop the rotating part of the engine in a determined position facilitating restarting of the engine.
- the control unit 10 can be connected to different sensors and in particular to sensors measuring the speed of rotation of the crankshaft 2 and of the transmission shaft 4 and sensors making it possible to determine, so very precise, the angular position of the crankshaft 2.
- the second braking and stopping device 8b is analogous to the device 8a, the caliper 11b of the second braking and stopping device 8b being able to be controlled by the control unit 10.
- the disc 9b of the second braking and stopping device 8b is locked on the input shaft 4 of the gearbox 5, in a coaxial arrangement and rotates in synchronism with the input shaft 4 of the gearbox 5.
- the control unit 10 braking and stopping devices 8a and 8b is activated, when the PLC management system stop and start gives the order to stop the engine or, possibly, when the ignition is switched off to stop the engine.
- the rotating part of the engine comprising the crankshaft 2 continues to turn by inertia and the speed of rotation and the angular position of the crankshaft serve as input data for the control unit 10 which allows modulating braking of the rotating part of the motor, by command displacement and tightening of the pads 12a and 12'a on the disc 9a secured to the crankshaft.
- the command 10 ensures that the brake pads are returned to the inactive position 12a and 12'a.
- the engine is then ready to restart in optimal conditions.
- the parking brake of the automatic gearbox can be used as a means of braking and stopping the rotating part of the motor vehicle engine.
- the parking brake can be produced in particular in the form of braking and stopping devices 8a and 8b which have been described previously.
- synchronization of the speed of the input shaft 4 of the gearbox, when shifting the gearbox can be performed by modulated braking using device 8b or device 8a.
- the brake constituting the device according to the invention can be produced in a different form from a brake comprising as a first element of brakes a disc integral with the rotating part of the engine and as a second brake element one or more calipers comprising braking means in the form of pads controlled to brake the disc by friction.
- the brake used for the implementation of the invention can be a brake with drum, a disc brake of the "clutch” type as used in automatic gearboxes, a band brake or any other mechanical brake or electromagnetic.
- the invention applies to all types of motor vehicles and in particular motor vehicles with a stop and restart system automatic engine or motor vehicles comprising a piloted or automatic gearbox.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Valve Device For Special Equipments (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Braking Arrangements (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0106609 | 2001-05-18 | ||
| FR0106609A FR2824791B1 (fr) | 2001-05-18 | 2001-05-18 | Dispositif et procede de freinage et d'arret d'un moteur a combustion interne de propulsion d'un vehicule automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1258616A1 true EP1258616A1 (de) | 2002-11-20 |
| EP1258616B1 EP1258616B1 (de) | 2009-03-11 |
Family
ID=8863458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02291198A Expired - Lifetime EP1258616B1 (de) | 2001-05-18 | 2002-05-14 | Vorrichtung und Verfahren zum Bremsen und Halten einer Brennkraftmaschine für ein Fahrzeug |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1258616B1 (de) |
| AT (1) | ATE425350T1 (de) |
| DE (1) | DE60231451D1 (de) |
| FR (1) | FR2824791B1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10677212B2 (en) * | 2018-05-01 | 2020-06-09 | GM Global Technology Operations LLC | Method and apparatus for controlled stopping of internal combustion engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3750786A (en) * | 1970-12-11 | 1973-08-07 | Fuji Denki Srizo Kk | Device and method for stopping a power driven unit at a predetermined position |
| US5593367A (en) * | 1995-08-18 | 1997-01-14 | Deere & Company | Switchable ignition and starter control system |
| US6098584A (en) * | 1996-11-07 | 2000-08-08 | Robert Bosch Gmbh | Starter for an internal combustion engine |
| DE19949931A1 (de) * | 1999-10-16 | 2001-04-05 | Daimler Chrysler Ag | Verfahren und Vorrichtung zum Starten einer Brennkraftmaschine |
-
2001
- 2001-05-18 FR FR0106609A patent/FR2824791B1/fr not_active Expired - Fee Related
-
2002
- 2002-05-14 AT AT02291198T patent/ATE425350T1/de not_active IP Right Cessation
- 2002-05-14 EP EP02291198A patent/EP1258616B1/de not_active Expired - Lifetime
- 2002-05-14 DE DE60231451T patent/DE60231451D1/de not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3750786A (en) * | 1970-12-11 | 1973-08-07 | Fuji Denki Srizo Kk | Device and method for stopping a power driven unit at a predetermined position |
| US5593367A (en) * | 1995-08-18 | 1997-01-14 | Deere & Company | Switchable ignition and starter control system |
| US6098584A (en) * | 1996-11-07 | 2000-08-08 | Robert Bosch Gmbh | Starter for an internal combustion engine |
| DE19949931A1 (de) * | 1999-10-16 | 2001-04-05 | Daimler Chrysler Ag | Verfahren und Vorrichtung zum Starten einer Brennkraftmaschine |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2824791A1 (fr) | 2002-11-22 |
| ATE425350T1 (de) | 2009-03-15 |
| EP1258616B1 (de) | 2009-03-11 |
| DE60231451D1 (de) | 2009-04-23 |
| FR2824791B1 (fr) | 2003-09-05 |
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