CN107650894B - Electronic parking control system and method for applying same - Google Patents
Electronic parking control system and method for applying same Download PDFInfo
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- CN107650894B CN107650894B CN201711063487.8A CN201711063487A CN107650894B CN 107650894 B CN107650894 B CN 107650894B CN 201711063487 A CN201711063487 A CN 201711063487A CN 107650894 B CN107650894 B CN 107650894B
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- valve
- oil
- parking
- parking control
- pilot
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Classifications
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- 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
- B60T13/12—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 the fluid being liquid
Abstract
The invention discloses an electronic parking scheme and a device, in particular to an electronic parking control system and a method for applying the same, wherein the electronic parking control system comprises a parking valve connected with a parking device through a mechanical mechanism and a parking control valve for controlling the parking valve to move from a P gear to an NP gear, and the electronic parking scheme is characterized in that: according to the electronic parking control system and the method using the same, after the switch valve S1 fails, oil in the pilot end of the parking control valve is discharged through the oil drain valve and the oil drain oil way, so that the parking control valve is closed, and the parking valve returns to the P-gear position.
Description
Technical Field
The invention relates to an electronic parking scheme and device, in particular to an electronic parking control system and a method for applying the same.
Background
The electronic parking system is more convenient for a driver to select and control a gear, mechanical parts such as a gear shifting lever and a gear shifting zipper are omitted, manufacturing cost is reduced, the internal space of the whole vehicle is increased, therefore, the application of the electronic parking system is wider and wider, the existing electronic parking system is used for controlling a parking valve through a hydraulic system, the parking valve is connected with a gear shifting device through a mechanical mechanism, the gear is driven to be changed into an NP gear by a P gear, a high-pressure oil way connected with the parking valve is controlled through a parking control valve, the parking control valve is controlled to be opened and closed through a switch valve, no effective standby measure for closing the electronic parking system after the switch valve fails exists in the existing electronic parking system, and the switch valve fails to cause the whole electronic parking system to be extremely threatening the life safety of drivers and passengers.
Disclosure of Invention
In order to make up for the defects, the invention provides an electronic parking control system capable of closing a parking control valve after a switch valve fails in the electronic parking system and a method for applying the system, so as to solve the problems in the background technology.
The technical scheme of the invention is as follows:
the utility model provides an electron parking control system, includes the parking valve that links to each other with parking device through mechanical system and is used for controlling this parking valve by the parking control valve of P gear action to NP gear, its characterized in that: the high-pressure oil inlet of the parking control valve is connected with a high-pressure oil way, the high-pressure oil outlet of the parking control valve is connected with an oil inlet of the parking valve through an oil way, a control oil way is connected with a pilot end of the parking control valve, the control oil way comprises a pilot oil way comprising an internal series switch valve S1 and an oil drainage oil way comprising an internal series switch valve S2, the pilot oil way is connected with an oil inlet of the pilot end of the parking control valve, and the oil drainage oil way is connected with an oil drainage port of the pilot end of the parking control valve.
As an preferable technical scheme, an oil drain valve is further connected in series in the oil drain path, an oil outlet end of the switch valve S2 is communicated to a pilot end of the oil drain valve, the switch valve S2 is used for controlling opening and closing of the oil drain valve, and an oil inlet end of the oil drain valve is connected with an oil drain port of the pilot end of the parking control valve.
As the preferable technical scheme, one end of the self-locking oil return channel is connected in a high-pressure oil channel between the parking control valve and the parking valve, and the other end of the self-locking oil return channel is connected with the oil inlet end of the oil drain valve.
As an optimal technical scheme, a parking valve locking system is arranged on the parking valve and comprises a locking pilot oil path and a locking valve driven by the locking pilot oil path, a normally-unlocked locking pin control valve is arranged in the locking pilot oil path, and the locking valve comprises a valve plate and a locking pin.
As an optimized technical scheme, the parking valve core is also provided with a locking groove matched with the locking pin.
As a preferable technical solution, the switch valve S1 and the switch valve S2 are oil-way communication valves.
As an preferable technical scheme, the parking control valve, the oil drain valve and the normally open locking pin control valve are mechanical valves controlled by hydraulic pressure.
As the preferable technical scheme, the pilot oil way and the oil drain oil way are both low-pressure oil ways of 5bar, and the high-pressure oil way is an oil way of 20 bar.
A method for controlling parking by using the electronic parking control system comprises the following steps:
(1) Parking valve opening and closing
The switching valve S1 is opened, a low-pressure pilot oil way enters an oil inlet cavity of the parking control valve through the switching valve S1, the parking control valve is opened, a high-pressure oil way is communicated with an oil inlet hole of the parking control valve, and is communicated with the oil inlet hole of the parking valve through an oil outlet hole and an oil outlet oil way, so that the valve core of the parking valve is controlled to be opened, and the whole vehicle is in an NP gear;
closing the switch valve S1, cutting off a low-pressure pilot oil passage, at the moment, the hydraulic oil in a draining oil passage connected with the parking control valve is still in an oil inlet cavity, opening the switch valve S2, opening the draining valve, draining the hydraulic oil in the draining oil passage, closing the parking control valve, completing the closing action of the parking valve, and enabling the whole vehicle to be in a P gear;
(2) Parking valve lock
The valve core of the parking valve is in an open state, a locking pilot oil passage is communicated, a low-pressure pilot oil passage is communicated to a mechanical valve plate controlled by hydraulic pressure through a normally open locking pin control valve, the action of a locking pin is controlled through the valve plate, and the locking pin enters a locking groove to lock the parking valve;
(3) Parking control valve lock
When the vehicle is in NP gear, the switch valve S1 breaks down, the low-pressure pilot oil passage cannot enter the oil inlet cavity of the parking control valve, the switch valve S2 is closed, the oil drain valve is closed, hydraulic oil is provided for the oil inlet cavity through the oil drain oil passage connected in the oil inlet cavity of the parking control valve in a loop, the vehicle is locked and in an open state, the vehicle is still in NP gear, after safe parking, the switch valve S2 is opened, the oil drain valve is opened, the oil pressure of the pilot end of the parking control valve is drained through the oil drain valve, the oil pressure of the pilot end of the parking valve is drained, the closing action of the parking valve is completed, and the vehicle is in P gear.
By adopting the technical scheme, the electronic parking control system and the method using the same, disclosed by the invention, have the advantages that the oil in the pilot end of the parking control valve is discharged through the oil drain valve and the oil drain way after the switch valve S1 fails, so that the parking control valve is closed, the parking valve returns to the P-gear position, the failure of the whole parking system caused by the failure of the switch valve is avoided, the threat to the life safety of drivers and passengers in the running process of a vehicle is avoided, and the locking mode of the parking valve locking system is changed in the system, so that the whole system is safer and more efficient.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic flow chart of an embodiment of the present invention.
Detailed Description
Embodiment one: as shown in fig. 1, the electronic parking control system of the present invention includes a parking valve 5 connected to a parking device through a mechanical mechanism and a parking control valve 4 for controlling the parking valve to move from a P gear to an NP gear, where the parking valve 5 includes a valve housing 501 and a valve core 502, the valve core 502 can move in a single line in the valve housing 501, and the P gear and the NP gear correspond to the movement positions of the valve core 502.
The parking control valve 4 is a hydraulic control mechanical valve, the parking control valve 4 is provided with a pilot end and a mechanical valve core end, oil is injected into the pilot end to push out the mechanical valve core, the valve is opened, and is closed in the opposite direction, the mechanical valve core end is provided with a high-pressure oil inlet 401 and a high-pressure oil outlet 402, the high-pressure oil inlet 401 is connected with a 20bar high-pressure oil path 1A, the high-pressure oil outlet 402 is connected with an oil inlet of the parking valve 5 through an oil path, 20bar high-pressure oil enters an oil cavity of the parking valve 5 through the parking control valve 4, a control oil path is connected with the pilot end of the parking control valve 4, the control oil path comprises a pilot oil path 4A of an internal series switch valve S1 and an oil drain oil path 4B of an internal series switch valve S2, the 5bar oil pressure enters the pilot end of the parking control valve 4 through the switch valve S1, the pilot oil path 4 is pushed to be opened, the pilot oil path 4A is connected with an oil inlet of the pilot end of the parking control valve 4, the pilot oil outlet 4 is discharged through the switch valve S2, and the parking control valve 4 is closed.
The oil drain way 4B is also connected with an oil drain valve 3 in series, the oil outlet end of the switch valve S2 is communicated with the pilot end of the oil drain valve 3, the switch valve S2 is used for controlling the opening and closing of the oil drain valve 3, the oil inlet end of the oil drain valve 3 is connected with the oil drain port of the pilot end of the parking control valve 4, when the oil drain is in NP gear, the switch valve S1 breaks down, the switch valve S2 is connected with the low-pressure oil way 1B of 5bar, low-pressure oil enters the pilot end of the oil drain valve 3 through the switch valve S2, the oil drain valve 3 is controlled to be opened, the oil pressure in the pilot end of the parking control valve 4 is discharged, the parking control valve 4 is closed, and the parking valve 5 is closed and returns to the P gear.
In addition, one end of the self-locking oil return path 1P is connected in a high-pressure oil path between the parking control valve 4 and the parking valve 5, the other end of the self-locking oil return path 1P is connected with the oil inlet end of the oil drain valve 3, the switching valve S1 is opened, the switching valve S2 is closed, low-pressure oil enters the pilot end of the parking control valve 4, a loop is formed in the self-locking oil return path 1P to perform self locking and is in an open state, the switching valve S1 fails, and the whole vehicle can still be in NP gear. After the automobile is safely stopped, the switch valve S2 is opened, the oil drain valve 3 is opened, the oil pressure at the pilot end of the parking control valve 4 is discharged through the oil drain valve 3, the oil pressure at the 20bar pilot end of the parking valve 5 is discharged, the mechanical device pushes the parking valve 5 into the P gear, meanwhile, the parking pawl locks the parking teeth, and the whole automobile enters the P gear.
The parking valve 5 is provided with a parking valve locking system, the parking valve locking system comprises a locking pilot oil way and a locking valve driven by the locking pilot oil way, a normally-unlocked locking pin control valve 11 is arranged in the locking pilot oil way, the oil inlet end of the locking pilot oil way is connected with the normally-unlocked locking pin control valve 11, the oil outlet end of the locking pilot oil way is connected with a locking valve oil inlet, the locking valve comprises a valve plate 7 and a locking pin 6, hydraulic oil pushes the valve plate 7 and the locking pin 6 to act, and the parking valve 5 is locked.
The valve core of the parking valve 5 is also provided with a locking groove 15 matched with the locking pin 6.
A method for controlling parking by using the electronic parking control system comprises the following steps:
(1) Parking valve opening and closing
The switching valve S1 is opened, a low-pressure pilot oil passage of 5bar enters an oil inlet cavity of the parking control valve through the switching valve S1, the parking control valve is opened, a high-pressure oil passage of 20bar enters an oil inlet hole of the parking control valve and enters an oil inlet hole of the parking valve 5 through an oil outlet hole and the oil outlet passage, a valve core of the parking valve 5 is controlled to be opened, and the whole vehicle is in an NP gear;
closing the switch valve S1, cutting off a 5bar low-pressure pilot oil way, at the moment, hydraulic oil in a drain oil way connected with the parking control valve 4 is still in an oil inlet cavity, opening the switch valve S2, opening the drain valve 3, draining the hydraulic oil in the drain oil way, closing the parking control valve 4, completing the closing action of the parking valve 5, and enabling the whole vehicle to be in a P gear;
(2) Parking valve lock
The valve core of the parking valve 5 is in an open state, a locking pilot oil way is communicated, a 5bar low-pressure pilot oil way is communicated to a mechanical valve plate 7 controlled by hydraulic pressure through a normally open locking pin 11 control valve, the action of a locking pin 6 is controlled through the valve plate 7, and the locking pin 6 enters a locking groove to lock the parking valve;
(3) Parking control valve lock
When the vehicle is in NP gear, the switching valve S1 breaks down, a 5bar low-pressure pilot oil passage cannot enter an oil inlet cavity of the parking control valve, the switching valve S2 is closed, the oil drain valve is closed, hydraulic oil is provided for the oil inlet cavity through the oil drain oil passage connected in the oil inlet cavity of the parking control valve in a loop, the vehicle is locked and in an open state, the vehicle is still in NP gear, after safe parking, the switching valve S2 is opened, the oil drain valve 3 is opened, the oil pressure at the pilot end of the parking control valve 4 is drained through the oil drain valve 3, the oil pressure at the pilot end of the parking valve 5 is drained, the closing action of the parking valve 5 is completed, and the vehicle is in P gear.
The foregoing has shown and described the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides an electron parking control system, includes the parking valve that links to each other with parking device through mechanical system and is used for controlling this parking valve by the parking control valve of P gear action to NP gear, its characterized in that: the high-pressure oil inlet of the parking control valve is connected with a high-pressure oil way, the high-pressure oil outlet of the parking control valve is connected with an oil inlet of the parking valve through an oil way, a control oil way is connected with a pilot end of the parking control valve, the control oil way comprises a pilot oil way of an internal series switch valve S1 and an oil drainage oil way of an internal series switch valve S2, the pilot oil way is connected with an oil inlet of the pilot end of the parking control valve, and the oil drainage oil way is connected with an oil drainage port of the pilot end of the parking control valve.
2. An electronic parking control system as set forth in claim 1 wherein: the oil draining path is also connected with an oil draining valve in series, the oil outlet end of the switching valve S2 is communicated with the pilot end of the oil draining valve, the switching valve S2 is used for controlling the opening and closing of the oil draining valve, and the oil inlet end of the oil draining valve is connected with the oil draining port of the pilot end of the parking control valve.
3. An electronic parking control system as set forth in claim 1 wherein: and one end of the self-locking oil return channel is connected in a high-pressure oil channel between the parking control valve and the parking valve, and the other end of the self-locking oil return channel is connected with the oil inlet end of the oil drain valve.
4. An electronic parking control system as claimed in claim 2 or 3, wherein: the parking valve is provided with a parking valve locking system, the parking valve locking system comprises a locking pilot oil path and a locking valve driven by the locking pilot oil path, a normally-unlocked locking pin control valve is arranged in the locking pilot oil path, and the locking valve comprises a valve plate and a locking pin.
5. The electronic parking control system of claim 4, wherein: and the valve core of the parking valve is also provided with a locking groove matched with the locking pin.
6. An electronic parking control system as claimed in claim 2 or 3, wherein: the switch valve S1 and the switch valve S2 are oil-way communication valves.
7. The electronic parking control system of claim 6, wherein: the parking control valve, the oil drain valve and the normally open locking pin control valve are mechanical valves controlled by hydraulic pressure.
8. An electronic parking control system as set forth in claim 1 wherein: the pilot oil way and the oil drain oil way are both low-pressure oil ways of 5bar, and the high-pressure oil way is an oil way of 20 bar.
9. A method of controlling parking using the electronic parking control system of claim 5, wherein: the method comprises the following steps:
(1) Parking valve opening and closing
The switching valve S1 is opened, a low-pressure pilot oil way enters an oil inlet cavity of the parking control valve through the switching valve S1, the parking control valve is opened, a high-pressure oil way is communicated with an oil inlet hole of the parking control valve, and is communicated with the oil inlet hole of the parking valve through an oil outlet hole and an oil outlet oil way, so that the valve core of the parking valve is controlled to be opened, and the whole vehicle is in an NP gear;
closing the switch valve S1, cutting off a low-pressure pilot oil passage, at the moment, the hydraulic oil in a draining oil passage connected with the parking control valve is still in an oil inlet cavity, opening the switch valve S2, opening the draining valve, draining the hydraulic oil in the draining oil passage, closing the parking control valve, completing the closing action of the parking valve, and enabling the whole vehicle to be in a P gear;
(2) Parking valve lock
The valve core of the parking valve is in an open state, a locking pilot oil passage is communicated, a low-pressure pilot oil passage is communicated to a mechanical valve plate controlled by hydraulic pressure through a normally open locking pin control valve, the action of a locking pin is controlled through the valve plate, and the locking pin enters a locking groove to lock the parking valve;
(3) Parking control valve lock
When the vehicle is in NP gear, the switch valve S1 breaks down, the low-pressure pilot oil passage cannot enter the oil inlet cavity of the parking control valve, the switch valve S2 is closed, the oil drain valve is closed, hydraulic oil is provided for the oil inlet cavity through the oil drain oil passage connected in the oil inlet cavity of the parking control valve in a loop, the vehicle is locked and in an open state, the vehicle is still in NP gear, after safe parking, the switch valve S2 is opened, the oil drain valve is opened, the oil pressure of the pilot end of the parking control valve is drained through the oil drain valve, the oil pressure of the pilot end of the parking valve is drained, the closing action of the parking valve is completed, and the vehicle is in P gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711063487.8A CN107650894B (en) | 2017-11-02 | 2017-11-02 | Electronic parking control system and method for applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711063487.8A CN107650894B (en) | 2017-11-02 | 2017-11-02 | Electronic parking control system and method for applying same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107650894A CN107650894A (en) | 2018-02-02 |
| CN107650894B true CN107650894B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711063487.8A Active CN107650894B (en) | 2017-11-02 | 2017-11-02 | Electronic parking control system and method for applying same |
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| Country | Link |
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| CN (1) | CN107650894B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678917A (en) * | 2010-12-22 | 2012-09-19 | 奥迪股份公司 | Device for operating parking lock |
| CN103097779A (en) * | 2010-08-25 | 2013-05-08 | 戴姆勒股份公司 | Hydraulic controller for an automatic transmission of a motor vehicle |
| CN206221634U (en) * | 2016-10-01 | 2017-06-06 | 江麓机电集团有限公司 | A kind of electro-hydraulic guide's buffering shifting control system |
| CN207466631U (en) * | 2017-11-02 | 2018-06-08 | 盛瑞传动股份有限公司 | A kind of electronic parking control system |
-
2017
- 2017-11-02 CN CN201711063487.8A patent/CN107650894B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097779A (en) * | 2010-08-25 | 2013-05-08 | 戴姆勒股份公司 | Hydraulic controller for an automatic transmission of a motor vehicle |
| CN102678917A (en) * | 2010-12-22 | 2012-09-19 | 奥迪股份公司 | Device for operating parking lock |
| CN206221634U (en) * | 2016-10-01 | 2017-06-06 | 江麓机电集团有限公司 | A kind of electro-hydraulic guide's buffering shifting control system |
| CN207466631U (en) * | 2017-11-02 | 2018-06-08 | 盛瑞传动股份有限公司 | A kind of electronic parking control system |
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| Publication number | Publication date |
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| CN107650894A (en) | 2018-02-02 |
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