CN201751633U - Flow regulating control system for hydraulic control system of automatic transmission - Google Patents
Flow regulating control system for hydraulic control system of automatic transmission Download PDFInfo
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- CN201751633U CN201751633U CN2010201367655U CN201020136765U CN201751633U CN 201751633 U CN201751633 U CN 201751633U CN 2010201367655 U CN2010201367655 U CN 2010201367655U CN 201020136765 U CN201020136765 U CN 201020136765U CN 201751633 U CN201751633 U CN 201751633U
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Abstract
The utility model discloses a flow regulating control system for a hydraulic control system of an automatic transmission, which comprises a main oil way and a low-pressure oil way which are connected with a hydraulic system, wherein an oil pump is arranged on the main oil way, a cooling and lubricating system is communicated on the low-pressure oil way, and a flow control valve is communicated between the main oil way and the low-pressure oil way; signals are obtained from the output end of the whole hydraulic system and adopted for controlling the flow valve, thus realizing closed-loop control on flow of the hydraulic control system of the automatic transmission; when the system is blocked or started in cold weather, the safety of the system is guaranteed; and the cooling and lubricating system is controlled only by the feedback oil pressure, thus omitting a solenoid valve and saving the cost.
Description
Technical field
The utility model relates to a kind of flow regulating control system that is used for the hydraulic control system of automatic transmission.
Background technique
In the hydraulic control system of the present automatic transmission of vehicle, the adjusting control of flow realizes by the electromagnetic valve mechanical valve.Its working principle is a mechanical valve in parallel in the working connection of hydraulic control system, the control port connection solenoid valve of this mechanical valve.Send the control signal control electromagnetic valve by control unit for automatic shift, solenoid valve produces guide's control oil pressure, comes the valve port size of mechanical valve is controlled, with the flow of oil in this controlled hydraulic system.
In this kind control, because no flow monitoring sensor in the hydraulic control system of automatic speed changer, flux signal in the system can't pass to the control unit of automatic transmission, also just can't realize closed loop control, the various parameters of automatic transmission controlling computer control electromagnetic valve only depend on emulation, experiment to determine, make the construction cycle strengthen; Simultaneously, owing to used the control of solenoid valve, make the control program of automatic transmission controlling computer write the difficulty increasing; Because the existence of solenoid valve makes cost of production increase.
The model utility content
The technical problems to be solved in the utility model is in order to overcome above-mentioned defective, to provide a kind of when system jams and cold day startup, guaranteeing the flow regulating control system of the hydraulic control system of automatic speed changer of security of system.
In order to address the above problem, the utility model by the following technical solutions:
Flow control system in a kind of hydraulic control system of automatic speed changer, comprise the working connection and the low pressure oil circuit that are connected with hydraulic system, on working connection, be provided with oil pump, be communicated with cooling and lubricating system on the low pressure oil circuit, between working connection and low pressure oil circuit, be communicated with flow control valve.
Below be the utility model for further improvement of these options:
Described flow control valve comprises valve body, is provided with valve pocket in valve body, and spool is installed in the valve pocket, is provided with drain tap, working connection connecting port on valve body, and the right part of valve body is provided with the import of control oil pressure oil circuit.
Further improve:
The adjacent setting of drain tap with the working connection connecting port, described drain tap is communicated with the input end of oil pump, and the working connection connecting port is communicated with the output terminal of oil pump.
Further improve:
The import of described control oil pressure oil circuit is arranged on the right-hand end of valve body, and drain tap and working connection connecting port are arranged on the position of valve body excircle near the import of control oil pressure oil circuit.
Further improve:
The right-hand member excircle of described spool is provided with the oil guide slot of annular, and when oil guide slot moved to drain tap and working connection connecting port corresponding position, this oil guide slot was communicated with drain tap and working connection connecting port.
Further improve:
The diameter of section that described spool is positioned at the oil guide slot left part is positioned at the diameter of section of oil guide slot right side part greater than spool.
Make oil guide slot near the inner wall area of the inner wall area on the left of the spool greater than the close spool right side of oil guide slot, after oil pressure enters oil guide slot, can form pressure difference, the pressure that acts on the spool left side is greater than the pressure that acts on the spool right side, under the situation that the system liquid pressing system stops up,, can self regulate because that spool has a cross section is poor, this moment is draining rapidly, guarantees the safety of system; When cold day started, the flowability of oil was poor, and pressure in the hydraulic system can increase moment, because that spool has a cross section is poor, can self regulate, and this moment is draining rapidly, the safety of assurance system.
Further improve:
Be provided with the valve core reset device between the left part of described valve body and the spool.
Further improve:
Described valve core reset device comprises Returnning spring, and the left end of described spool is connected with valve rod, and Returnning spring is arranged between the inwall of valve rod and valve body.
Further improve:
The valve body left part is provided with baffle plate.
The utility model adopts such scheme, and flow system flow is just often controlled the pressure of oil pressure oil circuit import and the balancing tension of Returnning spring, and spool is in a certain position state of rest.At this moment, reach the equilibrium of supply and demand of flow system flow.The two states of spool: the one, the oil pump feed amount is not more than system demand, and pressure that flow control valve self cross section difference produces and cooling and lubricating system balance each other for the pilot pressure sum and the spring force of flow control valve, and spool is static, and drain tap is closed.The 2nd, the fuel delivery of oil pump is greater than system demand, pressure that flow control valve self cross section difference produces and cooling and lubricating system balance each other for the pilot pressure sum and the spring force of flow control valve, and spool is static, at this moment, drain tap is an open mode, the drain tap draining.
When flow system flow is excessive, the output terminal of whole hydraulic system, be that the low pressure oil circuit enters under the excessive situation of flow in the cooling and lubricating system, pressure in the cooling and lubricating system of this moment increases, make the pressure that acts on the import of flow control valve control oil pressure oil circuit increase, the pressure of control oil pressure oil circuit import increases makes the spool of flow control valve move to the end that Returnning spring is installed in valve pocket, and drain tap increases, carry out draining, make the flow of the oil in the system tend to balance.
Under the too small situation of flow system flow, the output terminal of whole hydraulic system, promptly enter under the too small situation of flow in the cooling and lubricating system, pressure in the cooling and lubricating system of this moment reduces, the feasible pressure that acts on the control oil pressure oil circuit import of flow control valve reduces, the pressure of control oil pressure oil circuit import reduces to make spool to make under the effect of Returnning spring to reset, drain tap and oil guide slot are staggered, drain tap reduces or closes, the oil amount of releasing in the system of forbidding reduces or can not let out fully, makes the flow of the oil in the system tend to balance.Under the situation that whole system is stopped up, this moment is draining rapidly, guarantees the safety of system; When cold day started, the flowability of oil was poor, and the pressure in the hydraulic system can increase moment, and this moment is draining rapidly, guarantees the safety of system.
The utility model adopts technique scheme, because the employing of the control signal of Flow valve is that direct output terminal from whole hydraulic system gets signal, therefore realizes the flow of automatic speed variator hydraulic system is carried out closed loop control; When system jams and cold day startup, guaranteed the Security of system; Owing to only depend on the feedback oil pressure of cooling and lubricating system to control, saved solenoid valve, saved cost.
The utility model is described in further detail below in conjunction with drawings and Examples:
Description of drawings
Accompanying drawing 1 is the utility model embodiment's a systematic schematic diagram;
Accompanying drawing 2 is the structural representation of flow control valve among the utility model embodiment;
Accompanying drawing 3 is the action schematic representation of flow control valve when flow system flow is excessive among the utility model embodiment.
Among the figure: the 1-oil pump; The 2-flow control valve; The 3-cooling and lubricating system; The 4-working connection; The 5-valve body; The 6-spool; 7-working connection connecting port; The 8-drain tap; The import of 9-control oil pressure oil circuit; The 10-baffle plate; The 11-Returnning spring; The 12-valve rod; The 13-oil guide slot; The 14-valve pocket; 15-control oil pressure oil circuit; 16-low pressure oil circuit; 17-emptying oil circuit; 18-connects oil circuit.
Embodiment
Embodiment, as shown in Figure 1, flow control system in a kind of hydraulic control system of automatic speed changer, comprise the working connection 4 and the low pressure oil circuit 16 that are connected with hydraulic system oil, on working connection 4, be provided with oil pump 1, between working connection 4 and low pressure oil circuit 16, be communicated with flow control valve 2, flow control valve 2 and oil pump 1 are installed on working connection 4, be connected with cooling and lubricating system 3 on the low pressure oil circuit 16, flow control valve 2 is communicated with low pressure oil circuit 16 by control oil pressure oil circuit 15.
As shown in Figure 2, described flow control valve 2 comprises valve body 5, is provided with valve pocket 14 in valve body 5, and spool 6 is installed in the valve pocket 14, is provided with drain tap 8, control oil pressure oil circuit import 9 and working connection connecting port 7 on valve body 5.Described drain tap 8, working connection connecting port 7 are communicated with working connection 4 respectively, drain tap 8 and the 7 adjacent settings of working connection connecting port, control oil pressure oil circuit import 9 is passed through control oil pressure oil circuit 15 and is communicated with low pressure oil circuit 16, described control oil pressure oil circuit import 9 is arranged on the right part of valve body 5, and drain tap 8 and working connection connecting port 7 are arranged on valve body 5 excircles near the position of controlling oil pressure oil circuit import 9.Described spool 6 is provided with annular oil guide slot 13 near the right-hand end position of control oil pressure oil circuit import 9, and when spool 6 moved, this oil guide slot 13 can be communicated with drain tap 8 and working connection connecting port 7.Be provided with the valve core reset device between the left part of described valve body 5 and the spool 6.
Described valve core reset device comprises Returnning spring 11, and the left end of described spool 6 is connected with valve rod 12, and Returnning spring 11 is arranged between the inwall of valve rod 12 and valve body 5, and the left part that valve body 5 is provided with Returnning spring 11 is provided with baffle plate 10.
As shown in Figure 1, described drain tap 8 is communicated with the input end of oil pump 1 by emptying oil circuit 17, working connection connecting port 7 is communicated with the output terminal of oil pump 1 by connecting oil circuit 18, and control oil pressure oil circuit import 9 is passed through control oil pressure oil circuit 15 and is communicated with low pressure oil circuit 16 and cooling and lubricating system 3.
As shown in Figure 2, flow system flow just often, the pressure of control oil pressure oil circuit import 9 and the balancing tension of Returnning spring 11, spool 6 remains static, at this moment, 7 of working connection connecting ports are communicated with oil guide slot 13, unloading port 8 is in closed state.
When flow system flow is excessive, the output terminal of whole hydraulic system, be that low pressure oil circuit 16 enters under the excessive situation of flow in the cooling and lubricating system 3, pressure in the cooling and lubricating system 3 of this moment increases, make working connection connecting port 7 that acts on flow control valve and the pressure of controlling oil pressure oil circuit import 9 increase, as shown in Figure 3, the pressure of control oil pressure oil circuit import 9 increases makes the spool 6 of flow control valve move to the end that Returnning spring 11 is installed in valve pocket, drain tap 8 increases, carry out draining, make the flow of the oil in the system tend to balance.
Under the too small situation of flow system flow, the output terminal of whole hydraulic system, promptly enter under the too small situation of flow in the cooling and lubricating system 3, pressure in the cooling and lubricating system 3 of this moment reduces, the feasible pressure that acts on the control oil pressure oil circuit import 9 of flow control valve reduces, the pressure of control oil pressure oil circuit import 9 reduces, spool 6 resets to the position shown in the accompanying drawing 2 under the effect of Returnning spring 11, drain tap 8 is staggered with oil guide slot 13, drain tap 8 reduces or closes, the oil amount of releasing in the system of forbidding reduces or can not let out fully, makes the flow of the oil in the system tend to balance.
The diameter of section that described spool 6 is positioned at oil guide slot 13 left part is positioned at the diameter of section of oil guide slot 13 right side parts greater than spool 6.Make oil guide slot near the inner wall area of the inner wall area on the left of the spool greater than the close spool right side of oil guide slot, after oil pressure enters oil guide slot, can form pressure difference, the pressure that acts on the spool left side is greater than the pressure that acts on the spool right side, under the situation that the system liquid pressing system stops up,, can self regulate because that spool has a cross section is poor, this moment is draining rapidly, guarantees the safety of system; When cold day started, the flowability of oil was poor, and pressure in the hydraulic system can increase moment, because that spool has a cross section is poor, can self regulate, and this moment is draining rapidly, the safety of assurance system.
Claims (9)
1. the flow regulating control system in the hydraulic control system of automatic speed changer, comprise the working connection (4) and the low pressure oil circuit (16) that are connected with hydraulic system, on working connection (4), be provided with oil pump (1), it is characterized in that: between working connection (4) and low pressure oil circuit (16), be communicated with flow control valve (2).
2. the flow regulating control system in a kind of hydraulic control system of automatic speed changer according to claim 1, it is characterized in that: described flow control valve (2) comprises valve body (5), in valve body (5), be provided with valve pocket (14), spool (6) is installed in the valve pocket (14), be provided with drain tap (8), working connection connecting port (7) on valve body (5), the right part of valve body (5) is provided with control oil pressure oil circuit import (9).
3. the flow regulating control system in a kind of hydraulic control system of automatic speed changer according to claim 2 is characterized in that: drain tap (8) and the adjacent setting of working connection connecting port (7), described drain tap
(8) input end with oil pump (1) is communicated with, and working connection connecting port (7) is communicated with the output terminal of oil pump (1).
4. the flow regulating control system in a kind of hydraulic control system of automatic speed changer according to claim 3 is characterized in that: control oil pressure oil circuit import (9) is communicated with low pressure oil circuit (16).
5. the flow regulating control system in a kind of hydraulic control system of automatic speed changer according to claim 3, it is characterized in that: the right-hand member excircle of described spool (6) is provided with the oil guide slot (13) of annular, when oil guide slot (13) moved to drain tap (8) and working connection connecting port (7) corresponding position, this oil guide slot (13) was communicated with drain tap (8) and working connection connecting port (7).
6. the flow regulating control system in a kind of hydraulic control system of automatic speed changer according to claim 5 is characterized in that: the diameter of section that described spool (6) is positioned at oil guide slot (13) left side is positioned at the diameter of section on oil guide slot (13) right side greater than spool (6).
7. the flow regulating control system in a kind of hydraulic control system of automatic speed changer according to claim 6 is characterized in that: be provided with the valve core reset device between the left part of described valve body (5) and the spool (6).
8. the flow regulating control system in a kind of hydraulic control system of automatic speed changer according to claim 6, it is characterized in that: described valve core reset device comprises Returnning spring (11), the left end of described spool (6) is connected with valve rod (12), and Returnning spring (11) is arranged between the inwall of valve rod (12) and valve body (5).
9. the flow regulating control system in a kind of hydraulic control system of automatic speed changer according to claim 7 is characterized in that: the left part of valve body (5) is provided with baffle plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201367655U CN201751633U (en) | 2010-03-22 | 2010-03-22 | Flow regulating control system for hydraulic control system of automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201367655U CN201751633U (en) | 2010-03-22 | 2010-03-22 | Flow regulating control system for hydraulic control system of automatic transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201751633U true CN201751633U (en) | 2011-02-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201367655U Expired - Lifetime CN201751633U (en) | 2010-03-22 | 2010-03-22 | Flow regulating control system for hydraulic control system of automatic transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201751633U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588374A (en) * | 2012-03-09 | 2012-07-18 | 浙江捷姆轴承有限公司 | Pressure flux linkage valve |
| CN104196991A (en) * | 2014-08-27 | 2014-12-10 | 盛瑞传动股份有限公司 | Gearbox and gearbox lubrication control oil way |
| CN106594247A (en) * | 2016-12-07 | 2017-04-26 | 陕西法士特齿轮有限责任公司 | Clutch or brake lubricating control device |
| CN107420538A (en) * | 2017-05-17 | 2017-12-01 | 盛瑞传动股份有限公司 | A kind of fluid torque-converter controls oil circuit |
| CN108180280A (en) * | 2017-12-30 | 2018-06-19 | 盛瑞传动股份有限公司 | lubrication control system and hydraulic control system |
-
2010
- 2010-03-22 CN CN2010201367655U patent/CN201751633U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588374A (en) * | 2012-03-09 | 2012-07-18 | 浙江捷姆轴承有限公司 | Pressure flux linkage valve |
| CN104196991A (en) * | 2014-08-27 | 2014-12-10 | 盛瑞传动股份有限公司 | Gearbox and gearbox lubrication control oil way |
| CN104196991B (en) * | 2014-08-27 | 2017-02-15 | 盛瑞传动股份有限公司 | Gearbox and gearbox lubrication control oil way |
| CN106594247A (en) * | 2016-12-07 | 2017-04-26 | 陕西法士特齿轮有限责任公司 | Clutch or brake lubricating control device |
| CN107420538A (en) * | 2017-05-17 | 2017-12-01 | 盛瑞传动股份有限公司 | A kind of fluid torque-converter controls oil circuit |
| CN108180280A (en) * | 2017-12-30 | 2018-06-19 | 盛瑞传动股份有限公司 | lubrication control system and hydraulic control system |
| CN108180280B (en) * | 2017-12-30 | 2021-04-30 | 盛瑞传动股份有限公司 | Lubrication control system and hydraulic control system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110223 |
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| CX01 | Expiry of patent term |