CN214788999U - P-gear parking brake - Google Patents
P-gear parking brake Download PDFInfo
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- CN214788999U CN214788999U CN202120733006.5U CN202120733006U CN214788999U CN 214788999 U CN214788999 U CN 214788999U CN 202120733006 U CN202120733006 U CN 202120733006U CN 214788999 U CN214788999 U CN 214788999U
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- ratchet wheel
- ratchet
- bolt
- electromagnetic bolt
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Abstract
The utility model discloses a P shelves parking brake, include: the reduction box comprises a reduction box body, an electromagnetic bolt retaining lock catch, a ratchet wheel and a ratchet wheel position sensor; the electromagnetic bolts comprise a plurality of electromagnetic bolts which are respectively arranged inside the box body of the reduction box, one or more of the electromagnetic bolts are ejected out under the control of a vehicle controller and are combined with the ratchet wheel to control the braking of the vehicle, and the ratchet wheel position sensor is arranged on the ratchet wheel. The mode that this application relied on simple electromagnetism bolt locking ratchet accomplishes pure electric vehicles's parking needs, and the unusual circumstances can be diagnosed in the electromagnetism bolt current feedback of different mounted position, and the mode of secondary hasp has improved the reliability, and the internal layout of reduction gear has been optimized to little volume spare part.
Description
Technical Field
The utility model relates to an automobile control technical field especially relates to a be applied to two grades of mechanical automatic transmission's of electric machine control P shelves parking brake.
Background
Traditional P shelves parking brake uses the motor drive worm to promote the pawl and makes it interlock, and the ratchet reaches the purpose of locking reduction gear output shaft, and this kind of mode has very high requirement to the opposite face pressure of pawl interlock ratchet, so traditional scheme will reach very high terminal pressure and just need the motor among the P shelves parking brake to use multistage reducing gear increase moment of torsion, consequently, P shelves parking brake of prior art is difficult to do the volume for a short time, and simultaneously, multistage gear reduction structure can increase the unblock time of locking.
Accordingly, there is a need in the art for improvements.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem who solves is: a P-gear parking brake is provided to solve the problems in the prior art.
According to an aspect of the embodiment of the utility model discloses a P shelves parking brake is disclosed, include:
the reduction box comprises a reduction box body, an electromagnetic bolt retaining lock catch, a ratchet wheel and a ratchet wheel position sensor;
the electromagnetic bolts are respectively arranged in the box body of the reduction box, one or more of the electromagnetic bolts are ejected out under the control of a vehicle controller, and the electromagnetic bolts are combined with the ratchet wheel to control the braking of the vehicle;
the electromagnetic bolt retaining lock catch is controlled by a vehicle controller and is used for keeping the electromagnetic bolt to be ejected or retracted;
the ratchet comprises ratchet grooves for controlling the locking of the ratchet after the electromagnetic bolts are ejected, and when the ratchet is in a locking state, one or more electromagnetic bolts are inserted into the corresponding ratchet grooves of the ratchet after being ejected;
the ratchet wheel position sensor is arranged on the ratchet wheel and used for monitoring ratchet wheel groove position information of the ratchet wheel in real time.
In one embodiment, the electromagnetic bolts comprise a first electromagnetic bolt, a second electromagnetic bolt and a third electromagnetic bolt;
when the ratchet wheel is in a locked state, the first electromagnetic bolt and the third electromagnetic bolt are inserted into a ratchet wheel groove of the ratchet wheel, and the second electromagnetic bolt is retracted;
or when the ratchet wheel is in a locked state, the second electromagnetic bolt is inserted into the ratchet wheel groove of the ratchet wheel, and the first electromagnetic bolt and the third electromagnetic bolt are retracted;
when the ratchet wheel is in an unlocking state, the first electromagnetic bolt, the second electromagnetic bolt and the third electromagnetic bolt are retracted.
In one embodiment, a plug spring is arranged inside the electromagnetic bolt;
an electromagnetic coil is arranged in the electromagnetic bolt retaining lock catch;
the electromagnetic coils are arranged in one-to-one correspondence with the plug springs, and each electromagnetic coil controls one plug spring;
the plug spring in the electromagnetic bolt is ejected or retracted under the control of the driving force of the magnetic field of the electromagnetic coil in the electromagnetic bolt holding lock catch.
In one embodiment, the solenoid generates a solenoid magnetic field driving force under control of a vehicle controller to control the ejection or retraction of the solenoid latch.
In one embodiment, the solenoid coil sends its own current to the vehicle controller, and the vehicle controller calculates the operating state of the corresponding solenoid latch according to the current of the solenoid coil.
Compared with the prior art, the utility model has the advantages of as follows:
the utility model discloses a P shelves parking brake sends control command control electromagnetism bolt through vehicle controller and keeps the inside solenoid that corresponds of hasp to produce magnetic field drive power, thereby pop out or withdraw of the corresponding electromagnetism bolt of control, thereby the locking or the unblock of control ratchet, thereby accomplish the parking function of vehicle, the parking needs of pure electric vehicles are accomplished to the mode that this application relied on simple electromagnetism bolt locking ratchet, the unusual circumstances can be diagnosed to the electromagnetism bolt current feedback of different mounted position, the mode of secondary hasp has improved the reliability, reduction gear internal layout has been optimized to little volume spare part.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a P-range parking brake of the present invention;
fig. 2 is a schematic structural view of another embodiment of the P-range parking brake of the present invention;
fig. 3 is a schematic structural diagram of yet another embodiment of the P-range parking brake of the present invention.
In the figure: the device comprises a reduction box body 1, an electromagnetic bolt 2, a first electromagnetic bolt 21, a second electromagnetic bolt 22, a third electromagnetic bolt 23, an electromagnetic bolt 3 retaining lock catch, a ratchet wheel 4 and a ratchet wheel 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The present invention provides a P-range parking brake, which will be described in more detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1, 2, and 3, the P-range parking brake of the embodiment includes:
the device comprises a reduction box body 1, an electromagnetic bolt 2, an electromagnetic bolt retaining lock catch 3, a ratchet 4 and a ratchet position sensor 5;
the electromagnetic bolts 2 are respectively arranged in the reduction gearbox body 1, one or more of the electromagnetic bolts 2 are ejected out under the control of a vehicle controller, and the electromagnetic bolts 2 are combined with the ratchet wheel 4 to control the braking of a vehicle;
the electromagnetic bolt holding lock catch 3 is used for keeping the electromagnetic bolt 2 to be ejected or retracted under the control of a vehicle controller;
the ratchet 4 comprises ratchet grooves for controlling the locking of the ratchet 4 after the electromagnetic bolts 2 are ejected, and when the ratchet 4 is in a locking state, one or more electromagnetic bolts 2 are inserted into corresponding ratchet grooves of the ratchet 4 after being ejected;
the ratchet wheel position sensor 5 is arranged on the ratchet wheel 4 and used for monitoring ratchet wheel groove position information of the ratchet wheel 4 in real time.
In one embodiment, the electromagnetic bolts 2 comprise a first electromagnetic bolt 21, a second electromagnetic bolt 22 and a third electromagnetic bolt 23;
when the ratchet wheel 4 is in a locked state, the first electromagnetic bolt 21 and the third electromagnetic bolt 23 are inserted into the ratchet wheel groove of the ratchet wheel 4, and the second electromagnetic bolt 22 is retracted;
or, when the ratchet wheel 4 is in a locked state, the second electromagnetic bolt 22 is inserted into the ratchet wheel groove of the ratchet wheel 4, and the first electromagnetic bolt 21 and the third electromagnetic bolt 23 are retracted;
when the ratchet wheel 4 is in an unlocked state, the first electromagnetic bolt 21, the second electromagnetic bolt 22 and the third electromagnetic bolt 23 are all retracted.
A plug spring is arranged in the electromagnetic plug pin 2;
an electromagnetic coil is arranged in the electromagnetic bolt retaining lock catch 3;
the electromagnetic coils are arranged in one-to-one correspondence with the plug springs, and each electromagnetic coil controls one plug spring;
the inserting spring in the electromagnetic bolt 2 is ejected or retracted under the control of the driving force of the magnetic field of the electromagnetic coil in the electromagnetic bolt retaining lock catch 3.
The electromagnetic coil generates electromagnetic coil magnetic field driving force under the control of a vehicle controller, so that the ejection or the retraction of the electromagnetic bolt 2 is controlled.
The electromagnetic coil sends the current of the electromagnetic coil to a vehicle controller, and the vehicle controller calculates the working state of the corresponding electromagnetic bolt 2 according to the current of the electromagnetic coil.
As shown in fig. 1 and 2, when the P-gear parking controller is in a locked state, fig. 1 shows that the first electromagnetic latch 21 and the third electromagnetic latch 23 are ejected and inserted into corresponding ratchet grooves of the ratchet 4, and the second electromagnetic latch 22 is retracted and located above a protrusion of the ratchet 4. Fig. 2 shows that the second electromagnetic latch 22 is ejected and inserted into the corresponding ratchet groove of the ratchet 4, and the first electromagnetic latch 21 and the third electromagnetic latch 23 are retracted and positioned above the protrusion of the ratchet 4.
Fig. 3 shows that the P-gear parking controller is in an unlocked state, and the first electromagnetic latch 21, the second electromagnetic latch 22 and the third electromagnetic latch 23 are all retracted and cannot reach the ratchet groove of the ratchet 4.
In the embodiment of the application, the ratchet wheel 4 does not need to adjust the rotation angle, and at any angle, as long as any one of the plurality of electromagnetic bolts 2 is inserted into the ratchet wheel groove of the ratchet wheel 4, the P-gear parking controller can be in the locking state.
The above detailed description is made on the P-gear parking brake provided by the present invention, and the specific examples are applied herein to explain the principles and embodiments of the present invention, and the descriptions of the above embodiments are only used to help understand the method and core ideas of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (5)
1. A P-range parking brake, comprising:
the reduction box comprises a reduction box body, an electromagnetic bolt retaining lock catch, a ratchet wheel and a ratchet wheel position sensor;
the electromagnetic bolts are respectively arranged in the box body of the reduction box, one or more of the electromagnetic bolts are ejected out under the control of a vehicle controller, and the electromagnetic bolts are combined with the ratchet wheel to control the braking of the vehicle;
the electromagnetic bolt retaining lock catch is controlled by a vehicle controller and is used for keeping the electromagnetic bolt to be ejected or retracted;
the ratchet comprises ratchet grooves for controlling the locking of the ratchet after the electromagnetic bolts are ejected, and when the ratchet is in a locking state, one or more electromagnetic bolts are inserted into the corresponding ratchet grooves of the ratchet after being ejected;
the ratchet wheel position sensor is arranged on the ratchet wheel and used for monitoring ratchet wheel groove position information of the ratchet wheel in real time.
2. The P-range parking brake of claim 1, wherein the electromagnetic latch comprises a first electromagnetic latch, a second electromagnetic latch, and a third electromagnetic latch;
when the ratchet wheel is in a locked state, the first electromagnetic bolt and the third electromagnetic bolt are inserted into a ratchet wheel groove of the ratchet wheel, and the second electromagnetic bolt is retracted;
or when the ratchet wheel is in a locked state, the second electromagnetic bolt is inserted into the ratchet wheel groove of the ratchet wheel, and the first electromagnetic bolt and the third electromagnetic bolt are retracted;
when the ratchet wheel is in an unlocking state, the first electromagnetic bolt, the second electromagnetic bolt and the third electromagnetic bolt are retracted.
3. The P-range parking brake of claim 1, wherein a plug spring is arranged inside the electromagnetic plug pin;
an electromagnetic coil is arranged in the electromagnetic bolt retaining lock catch;
the electromagnetic coils are arranged in one-to-one correspondence with the plug springs, and each electromagnetic coil controls one plug spring;
the plug spring in the electromagnetic bolt is ejected or retracted under the control of the driving force of the magnetic field of the electromagnetic coil in the electromagnetic bolt holding lock catch.
4. The P-range parking brake of claim 3, wherein the solenoid generates a solenoid magnetic field driving force under control of a vehicle controller to control the ejection or retraction of the solenoid latch.
5. The P-range parking brake of claim 4, wherein the solenoid coil sends its own current to a vehicle controller, and the vehicle controller calculates the working state of the corresponding electromagnetic latch according to the current of the solenoid coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120733006.5U CN214788999U (en) | 2021-04-09 | 2021-04-09 | P-gear parking brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120733006.5U CN214788999U (en) | 2021-04-09 | 2021-04-09 | P-gear parking brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214788999U true CN214788999U (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120733006.5U Active CN214788999U (en) | 2021-04-09 | 2021-04-09 | P-gear parking brake |
Country Status (1)
| Country | Link |
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| CN (1) | CN214788999U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023161917A1 (en) * | 2022-02-24 | 2023-08-31 | Ree Automotive Ltd. | Systems for locking rotatable shaft |
-
2021
- 2021-04-09 CN CN202120733006.5U patent/CN214788999U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023161917A1 (en) * | 2022-02-24 | 2023-08-31 | Ree Automotive Ltd. | Systems for locking rotatable shaft |
| US11927228B2 (en) | 2022-02-24 | 2024-03-12 | Ree Automotive Ltd | Systems for locking rotatable shaft |
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