CN211423361U - Hydraulic gear-shifting parking system of automatic transmission - Google Patents
Hydraulic gear-shifting parking system of automatic transmission Download PDFInfo
- Publication number
- CN211423361U CN211423361U CN202020061510.0U CN202020061510U CN211423361U CN 211423361 U CN211423361 U CN 211423361U CN 202020061510 U CN202020061510 U CN 202020061510U CN 211423361 U CN211423361 U CN 211423361U
- Authority
- CN
- China
- Prior art keywords
- parking
- piston rod
- automatic transmission
- piston
- cylinder body
- 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.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims description 24
- 238000010030 laminating Methods 0.000 description 2
- 101000619552 Homo sapiens Prion-like protein doppel Proteins 0.000 description 1
- 102100022209 Prion-like protein doppel Human genes 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Images
Abstract
The utility model discloses an automatic derailleur hydraulic pressure parking system of shifting, including parking actuating mechanism, gearshift and with gearshift matched with parking electro-magnet, parking actuating mechanism carries out rotatory parking actuating lever assembly including parking wheel, parking pawl, torsional spring, pivot and being used for controlling the parking pawl, gearshift include cylinder body, mobilizable set up in the inside parking piston of cylinder body and with parking piston connection and with the piston rod subassembly that parking actuating lever assembly connects, the axial of piston rod subassembly parallels with the axial of parking actuating lever assembly. The utility model discloses an automatic transmission hydraulic pressure parking system of shifting, simple structure, compactness, the cost is lower, arranges the convenience, and the degree of integrating is high.
Description
Technical Field
The utility model belongs to the technical field of the derailleur, specifically speaking, the utility model relates to an automatic transmission hydraulic pressure parking system of shifting.
Background
In an automatic transmission, a shift parking system is an indispensable part. The reliability of parking may directly affect driving safety.
At present, the requirement of the whole vehicle on the size of a transmission is smaller and smaller, and the requirement on the gear shifting automation degree is higher and higher, so that the parking system is required to be compact in structure, small in occupied space and high in integrated automation degree.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an automatic transmission hydraulic pressure parking system of shifting, the purpose improves compact structure nature.
In order to realize the purpose, the utility model discloses the technical scheme who takes does: automatic derailleur hydraulic pressure parking system of shifting, including parking actuating mechanism, gearshift and with gearshift matched with parking electro-magnet, parking actuating mechanism is including stopping wheel, parking pawl, torsional spring, pivot and being used for controlling the parking pawl and carrying out rotatory parking actuating lever assembly, gearshift include cylinder body, mobilizable set up in the inside parking piston of cylinder body and with parking piston connection and with the piston rod subassembly that parking actuating lever assembly is connected, the axial of piston rod subassembly and the axial of parking actuating lever assembly parallel.
The piston rod assembly comprises a piston rod body connected with the parking piston and a connecting plate connected with the piston rod body, the connecting plate is located outside the cylinder body, and the connecting plate is connected with the parking driving rod assembly.
The piston rod body is fixedly connected with the connecting plate in a riveting mode.
The piston rod assembly further comprises a rolling body which is rotatably arranged on the piston rod body and is used for contacting the head of the parking electromagnet.
The outer circle surface of the rolling body is in contact with the head of the parking electromagnet, the outer circle surface of the rolling body is a cylindrical surface, the head of the parking electromagnet is provided with a contact surface in contact with the outer circle surface of the rolling body, the contact surface is an inclined plane which is obliquely arranged, and the inclined direction of the contact surface is perpendicular to the axis of the rolling body.
The parking actuating mechanism further comprises a parking support, and the parking support is sleeved on the cylinder body.
The parking support is provided with a limiting surface, the cylinder body is provided with a matching surface attached to the limiting surface, and the limiting surface and the matching surface are planes parallel to the axis of the cylinder body.
The utility model discloses an automatic transmission hydraulic pressure parking system of shifting, simple structure, compactness, the cost is lower, arranges the convenience, and the degree of integrating is high.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic structural diagram of a hydraulic shifting and parking system of an automatic transmission according to the present invention;
FIG. 2 is a cross-sectional view of the shift mechanism;
FIG. 3 is a schematic view of the state of the shift mechanism in the P-range position;
FIG. 4 is a schematic view of the state of the shift mechanism in a non-P range position;
labeled as: 1. a cylinder body; 2. a parking piston; 3. a first return spring; 4. a piston rod assembly; 4a, a piston rod body; 4b, a support pin; 4c, rolling bodies; 4d, connecting plates; 5. a parking electromagnet; 6. a parking drive rod assembly; 6a, a parking driving rod body; 6b, a second return spring; 6c, a parking cam; 6d, positioning sleeves; 7. a parking support; 8. a parking pawl; 9. a pivot; 10. a torsion spring; 11. and (5) parking the wheels.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, for the purpose of helping those skilled in the art to understand more completely, accurately and deeply the conception and technical solution of the present invention, and to facilitate its implementation.
As shown in fig. 1 to 4, the utility model provides an automatic derailleur hydraulic pressure parking system of shifting, including parking actuating mechanism, gearshift and with gearshift matched with parking electro-magnet 5, parking actuating mechanism is including parking wheel 11, parking pawl 8, torsional spring 10, pivot 9 and be used for controlling parking pawl 8 to carry out rotatory parking actuating lever assembly 6, gearshift includes cylinder body 1, first return spring 3, mobilizable setting is in cylinder body 1 inside parking piston 2 and be connected with parking piston 2 and the piston rod subassembly 4 of being connected with parking actuating lever assembly 6, the axial of piston rod subassembly 4 (also the axial of piston rod body 4 a) is parallel with the axial of parking actuating lever assembly 6 (also the axial of parking body 6 a).
Specifically, as shown in fig. 1 to 4, the parking actuator, the shift mechanism and the parking electromagnet 5 are incorporated into the transmission case, so that the assembly is more convenient and the space is more compact. Realize P shelves parking when parking pawl 8 blocks into the draw-in groove of parking wheel 11, set up a plurality of draw-in grooves on the disc of parking wheel 11, all draw-in grooves are for following the circumference evenly distributed of parking wheel 11. Under the normal running state of the vehicle, the gear shifting mechanism can control the parking driving rod assembly 6 to move towards the direction of engaging the P gear so as to enable the parking pawl 8 to be clamped into a clamping groove of the parking wheel 11; after the parking driving rod assembly 6 is controlled to move towards the direction of withdrawing the P gear, at the moment, the parking pawl 8 rotates around the pivot 9 to reset under the action of restoring force of the torsion spring 10, so that the parking pawl 8 is ejected out of a clamping groove of the parking wheel 11, and the action of automatically engaging the P gear or withdrawing the P gear is finished.
As shown in fig. 1 to 4, the piston rod assembly 4 includes a piston rod body 4a connected to the parking piston 2 and a connecting plate 4d connected to the piston rod body 4a, the connecting plate 4d being located outside the cylinder 1 and the connecting plate being connected to the parking drive rod assembly 6. One end of the piston rod body 4a extends into the cylinder body 1, the end of the piston rod body 4a is coaxially and fixedly connected with the piston, the other end of the piston rod body 4a is positioned outside the cylinder body 1, and the end of the piston rod body 4a is fixedly connected with the connecting plate 4d in a riveting mode. The first return spring 3 is sleeved on the piston rod body 4a, the first return spring 3 is used for applying an acting force to the piston to enable the piston to move along the axial direction, and the first return spring 3 is a cylindrical helical spring and is a compression spring.
Preferably, the piston rod body 4a and the connecting plate 4d are fixedly connected by riveting. The piston rod and the connecting plate 4d are riveted and are connected with the parking driving rod body 6a in parallel, the axial space is more compact, and the space is saved. The connecting plate 4d plays a role in connecting the piston rod with the parking driving rod and fixing the sensor magnet to provide position signals for the sensor and prevent the piston rod from rotating, so that the arrangement is more compact, parts are saved, and the cost is reduced.
As shown in fig. 1 to 4, the piston rod assembly 4 further includes a rolling body 4c rotatably disposed on the piston rod body 4a and configured to contact the head of the parking electromagnet 5, the rolling body 4c is mounted on the piston rod body 4a by a support pin 4b, and the rolling body 4c is located inside the cylinder 1. During assembly, rolling element 4c empty cover to the supporting pin 4b, then supporting pin 4b interference is impressed in the fit hole that sets up on piston rod body 4a, makes rolling element 4c and parking electromagnet 5 direct action, arranges compacter like this, saves space. The rolling body 4c is a cylinder, the axis of the rolling body 4c is perpendicular to the axis of the piston rod body 4a, the outer circular surface of the rolling body 4c is in contact with the head of the parking electromagnet 5, the outer circular surface of the rolling body 4c is a cylindrical surface, the head of the parking electromagnet 5 is provided with a contact surface in contact with the outer circular surface of the rolling body 4c, the contact surface is an inclined plane which is arranged in an inclined mode, and the inclined direction of the contact surface is perpendicular to the axis of the rolling body 4c in space. An avoiding hole for the head of the parking electromagnet 5 to pass through is formed in the side wall of the cylinder body 1, and the head of the parking electromagnet 5 passes through the avoiding hole and then extends into the inner cavity of the cylinder body 1.
As shown in fig. 1 to 4, the parking actuator further includes a parking bracket 7, and the parking bracket 7 is sleeved on the cylinder 1. Parking support 7 has a spacing face, and cylinder body 1 has a fitting surface with this spacing face laminating, and spacing face and fitting surface are the plane that is parallel with the axis of cylinder body 1. The fitting surface is the plane of milling out on the outer disc of cylinder body 1, and the fitting surface can prevent that cylinder body 1 and parking support 7 from taking place relative rotation with spacing face laminating, and parking support 7 can play the effect of preventing changeing to cylinder body 1, saves the part, reduce cost.
As shown in fig. 1 to 4, the parking drive lever assembly 6 includes a parking drive lever body 6a, a parking cam 6c disposed on the parking drive lever body 6a and engaged with the parking pawl 8, a second return spring 6b sleeved on the parking drive lever body 6a and used for applying an elastic force to the parking cam 6c, and a positioning sleeve 6d disposed on the parking drive lever body 6a, where the positioning sleeve 6d is engaged with the parking cam 6c and the parking cam 6c is located between the positioning sleeve 6d and the second return spring 6 b. The parking drive rod body 6a and the parking pawl 8 are arranged at 90 degrees, so that the arrangement is more compact, and the space is saved. The parking cam 6c is idly fitted over the parking drive lever body 6a, and the parking cam 6c is axially movable relative to the parking drive lever body 6 a. Parking cam 6c is to leaning on the cooperation with the one end of parking pawl 8, and when parking cam 6c was axial motion on parking actuating lever body 6a, parking cam 6c can promote parking pawl 8 and rotate and make parking pawl 8 and parking wheel 11 interlock. Parking cam 6c is the toper structure, and parking cam 6 c's periphery is equipped with the conical surface that is certain variable angle, supports through this conical surface between parking cam 6c and the parking pawl 8 and leans on the cooperation each other. When the parking cam 6c axially moves along with the parking drive rod body 6a in the vertical direction, under the conical surface matching action of the parking cam 6c and the parking pawl 8, the parking cam 6c pushes the parking pawl 8 to rotate. And after the parking pawl 8 is clamped into the clamping groove of the parking wheel 11, parking is finished.
When a driver shifts gears through the PRND handle, the linkage line of the internal gear shifting and parking system of the transmission is as follows:
the transmission route for switching from the P gear to the non-P gear (R/N/D gear) is as follows:
as shown in fig. 1 to 4, when the driver operates the handle to switch from the P-range to the non-P-range (R/N/D-range), a TCU (transmission control unit) receives a signal to control the parking electromagnet 5 to be powered on, and then controls the valve body to charge the parking piston 2 with oil, so as to push the piston rod assembly 4 to move to the non-P-range (R/N/D-range) against an acting force under the condition that the parking electromagnet 5 is powered on, at this time, a sensor detects a signal that the piston rod assembly 4 moves to the non-P-range (R/N/D-range), the TCU controls the parking electromagnet 5 to be powered off, and then controls the valve body to drain oil to the parking piston 2, so that the parking system is maintained at the non-P-range (.
The transmission route for switching from the non-P gear (R/N/D gear) to the P gear is as follows:
when a driver operates a handle to switch from a non-P gear (R/N/D gear) to a P gear, a TCU receives a signal to control the parking electromagnet 5 to be electrified, then under the action of a first return spring 3, the piston rod assembly 4 overcomes the acting force of the electrified condition of the parking electromagnet 5 to move to the P gear, at the moment, a sensor detects that the piston rod assembly 4 moves to the P gear, the TCU controls the parking electromagnet 5 to be powered off, the head of the parking electromagnet 5 limits the rolling body 4c, the connecting plate 4D is prevented from moving, and therefore the parking system is kept at the P gear position.
The hydraulic gear-shifting parking system of the automatic transmission has the following advantages:
1. the structure is simple and compact, the cost is lower, the arrangement is convenient, and the integration degree is high;
2. possesses the fail safe protection structure measure:
a) under the condition of high-speed running, if the parking system accidentally enters the P gear, the TCU can control the valve body to charge oil for the piston, so that the parking system is kept in the non-P gear, and safety accidents are avoided;
b) when the parking system is difficult to drive out the P gear, the valve body can be controlled to charge oil pressure to the piston, so that the parking system can drive out the P gear forcibly, and the parking system can drive simply;
c) the parking system is kept in the P gear by the return action of a return spring instead of the hydraulic action, so that the parking is more reliable;
3. the head of the parking electromagnet 5 is made into an inclined surface to act with the rolling body 4c, so that the parking electromagnet 5 can reliably lock a parking system;
4. the parking pawl 8 adopts a return mode of a torsion spring 10, and can also adjust the parking and stopping speed;
5. the parking driving rod adopts a head welding type, so that the strength is more reliable.
The invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-described manner. Various insubstantial improvements are made by adopting the method conception and the technical proposal of the utility model; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.
Claims (7)
1. Automatic derailleur hydraulic pressure parking system of shifting, including parking actuating mechanism, gearshift and with gearshift matched with parking electro-magnet, parking actuating mechanism carries out rotatory parking actuating lever assembly, its characterized in that including parking wheel, parking pawl, torsional spring, pivot and being used for controlling the parking pawl: the gear shifting mechanism comprises a cylinder body, a parking piston movably arranged in the cylinder body and a piston rod assembly connected with the parking piston and connected with the parking driving rod assembly, and the axial direction of the piston rod assembly is parallel to the axial direction of the parking driving rod assembly.
2. The automatic transmission hydraulic shift park system of claim 1, wherein: the piston rod assembly comprises a piston rod body connected with the parking piston and a connecting plate connected with the piston rod body, the connecting plate is located outside the cylinder body, and the connecting plate is connected with the parking driving rod assembly.
3. The automatic transmission hydraulic shift park system of claim 2, wherein: the piston rod body is fixedly connected with the connecting plate in a riveting mode.
4. The automatic transmission hydraulic shift parking system according to claim 2 or 3, characterized in that: the piston rod assembly further comprises a rolling body which is rotatably arranged on the piston rod body and is used for contacting the head of the parking electromagnet.
5. The automatic transmission hydraulic shift park system of claim 4, wherein: the outer circle surface of the rolling body is in contact with the head of the parking electromagnet, the outer circle surface of the rolling body is a cylindrical surface, the head of the parking electromagnet is provided with a contact surface in contact with the outer circle surface of the rolling body, the contact surface is an inclined plane which is obliquely arranged, and the inclined direction of the contact surface is perpendicular to the axis of the rolling body.
6. The automatic transmission hydraulic shift parking system according to any one of claims 1 to 3, characterized in that: the parking actuating mechanism further comprises a parking support, and the parking support is sleeved on the cylinder body.
7. The automatic transmission hydraulic shift park system of claim 6, wherein: the parking support is provided with a limiting surface, the cylinder body is provided with a matching surface attached to the limiting surface, and the limiting surface and the matching surface are planes parallel to the axis of the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020061510.0U CN211423361U (en) | 2020-01-13 | 2020-01-13 | Hydraulic gear-shifting parking system of automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020061510.0U CN211423361U (en) | 2020-01-13 | 2020-01-13 | Hydraulic gear-shifting parking system of automatic transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211423361U true CN211423361U (en) | 2020-09-04 |
Family
ID=72251692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020061510.0U Active CN211423361U (en) | 2020-01-13 | 2020-01-13 | Hydraulic gear-shifting parking system of automatic transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211423361U (en) |
-
2020
- 2020-01-13 CN CN202020061510.0U patent/CN211423361U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0301724B1 (en) | Vehicle transmissions | |
| KR960014066B1 (en) | Friction clutch having a brake mechanism | |
| CN101353078B (en) | Automated shift control device and saddle type vehicle equipped with the same | |
| WO2010139524A1 (en) | Parking lock for a motor vehicle and method of operating a parking lock | |
| JPH10153261A (en) | Automobile provided with device operating transmission gear and/or clutch | |
| WO2008115370A1 (en) | Range and mode shift system for two-speed on-demand transfer case | |
| US6629589B2 (en) | Vehicle clutch driving device and gear shifting device of vehicle transmission | |
| CN101396964B (en) | Transmission for vehicles | |
| KR100331419B1 (en) | Parking brake system for automobile mounting automatic transmission | |
| US5916326A (en) | Control device using a single actuator to rotate and translate a shift selector for automatically operating a manual transmission of a vehicle | |
| CN202144863U (en) | Parking gear shifting transmission system | |
| WO2009090612A1 (en) | Gear shift control device for a vehicle gearbox with a rotating and axially floating drum | |
| CN201723694U (en) | Electrical control hydraulic parking braking mechanism of automatic transmission of automobile | |
| CN211423361U (en) | Hydraulic gear-shifting parking system of automatic transmission | |
| CN212804189U (en) | Automatic derailleur shift tower drive formula parking mechanism | |
| CA2405860A1 (en) | Electric actuators for clutch and/or sequential gearbox operation in motor vehicles | |
| KR19990072355A (en) | Motor vehicle with a device for automated gearbox operation | |
| US6397696B2 (en) | Automatic gear transmission | |
| CN112212004B (en) | Parking device for vehicle | |
| CN201206627Y (en) | Parking mechanism for automobile | |
| CN212106895U (en) | Hydraulic gear-shifting parking system of automatic transmission | |
| CN107628007B (en) | Hydraulic automatic parking device | |
| CN111075925B (en) | Hydraulic control parking mechanism, control method and vehicle | |
| KR100414011B1 (en) | Parking System for Auto Transmission of Vehicle | |
| CN101509548B (en) | Mechanical pull rod gearing transmission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215100 16F, building a, vitality Business Plaza, 185 jumao street, Yuanhe street, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Jifu Automotive Technology (Suzhou) Co.,Ltd. Address before: No.404, No.1-1 scientific research building, Xianhua base, no.589 Longtan Road, Wucheng District, Jinhua City, Zhejiang Province, 321000 Patentee before: JIFU AUTOMOTIVE TECHNOLOGY (ZHEJIANG) Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240125 Address after: Room 32, 5th Floor, Comprehensive Service Building, Management Committee of Fanchang Economic Development Zone, Fanchang District, Wuhu City, Anhui Province, 241000 Patentee after: Anhui Fuzhen Automobile Power System Co.,Ltd. Guo jiahuodiqu after: Zhong Guo Address before: 215100 16F, building a, vitality Business Plaza, 185 jumao street, Yuanhe street, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: Jifu Automotive Technology (Suzhou) Co.,Ltd. Guo jiahuodiqu before: Zhong Guo |
|
| TR01 | Transfer of patent right |