CN207621329U - A kind of hydraulic control system of double-clutch speed changer - Google Patents
A kind of hydraulic control system of double-clutch speed changer Download PDFInfo
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- CN207621329U CN207621329U CN201721587581.9U CN201721587581U CN207621329U CN 207621329 U CN207621329 U CN 207621329U CN 201721587581 U CN201721587581 U CN 201721587581U CN 207621329 U CN207621329 U CN 207621329U
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Abstract
The utility model provides a kind of hydraulic control system of double-clutch speed changer, including clutch control, gear control system and oil-feeding control system, the clutch control and the gear control system are connected in parallel on the output end of the oil-feeding control system；The gear control system includes multiple gear control subsystems being connected in parallel；Each gear control subsystem include first pressure regulating valve, gear reversal valve and several be used to switch the hydraulic cylinder of gear, the input terminal of the first pressure regulating valve is connect with the output end of the oil-feeding control system, the output end of the first pressure regulating valve is connect with the input terminal of the gear reversal valve, and the output end of the gear reversal valve is connect with the input terminal of hydraulic cylinder described in several.The utility model embodiment can effectively improve the ride comfort of shift process and the tolerance of hydraulic control system, to improve the comfort of driving.
Description
Technical field
The utility model is related to double-clutch speed changer technical fields, more particularly, to a kind of hydraulic pressure control of double-clutch speed changer
System processed.
Background technology
Currently, double-clutch speed changer is widely used in automobile, generally controlled using hydraulic control system.It is double
Clutch speed changer is as a result of the mode put into gear in advance and double engaging powers switch, therefore double-clutch speed changer can effectively subtract
The dynamic property of time and raising shifting system that few shifting power interrupts.
In the prior art, in the hydraulic control system design of the double-clutch speed changer of multi gear position, hydraulic pressure control in order to prevent
System processed causes double-clutch speed changer to lose basic function, the shelves of hydraulic control system when individual gear oil circuits break down
Position control oil circuit generally use series loop control mode.But due to controlling oil using the gear of series loop control mode
The appearance of a street easily causes shift process irregularity, and its tolerance is poor, therefore leads to the comfort for affecting driving.
Utility model content
The purpose of this utility model is to provide a kind of hydraulic control system of double-clutch speed changer, with solve it is existing it is double from
The hydraulic control system of speed changer is closed since gear control oil circuit leads to its shift process not using series loop control mode
Smooth-going and the poor technical problem of tolerance, to improve the comfort driven.
In order to solve the above-mentioned technical problem, the utility model provides a kind of hydraulic control system of double-clutch speed changer, packet
Include clutch control, gear control system and oil-feeding control system, the clutch control and gear control
System is connected in parallel on the output end of the oil-feeding control system；The gear control system includes multiple shelves being connected in parallel
Position control subsystem；Each gear control subsystem include first pressure regulating valve, gear reversal valve and several be used for
Switch the hydraulic cylinder of gear, the input terminal of the first pressure regulating valve is connect with the output end of the oil-feeding control system, institute
The output end for stating first pressure regulating valve is connect with the input terminal of the gear reversal valve, the output end of the gear reversal valve with
The input terminal of several hydraulic cylinders connects.
Preferably, each gear control subsystem further includes pilot flow control valve；The pilot flow
The input terminal of control valve is connect with the output end of the first pressure regulating valve, the output end of the pilot flow control valve and institute
State the input terminal connection of gear reversal valve.
Preferably, the hydraulic cylinder of each gear control subsystem is two；The gear reversal valve
Output end include first shift output end, second shift output end, third shift output end and the 4th shift output end, one
First gear control terminal of the hydraulic cylinder is connect with the first shift output end, the second gear control of a hydraulic cylinder
End processed is connect with the second shift output end, and the first gear control terminal of another hydraulic cylinder and third shift are defeated
Outlet connects, and the second gear control terminal of another hydraulic cylinder is connect with the 4th shift output end.
Preferably, the oil-feeding control system includes fuel tank, fueller, main pressure regulating valve and guide's oil pressure
Control valve；The output end of the oil-feeding control system includes the first fuel feeding output end, the first end, described of the main pressure regulating valve
The second end of main pressure regulating valve is connect with the first fuel feeding output end respectively；The oil inlet of the fueller and the fuel tank
Connection, the oil outlet of the fueller and the first fuel feeding output end, first end, the main pressure of the main pressure regulating valve
The guide end connection of the second end of regulating valve, the third end of the main pressure regulating valve and the main pressure regulating valve, the main pressure
4th end of regulating valve is connected to the oil inlet of the fueller, the first end of guide's pressure control valve, the guide
The guide end of pressure control valve is connect with the spring terminal of the main pressure regulating valve, the second end of guide's pressure control valve and institute
State the oil inlet connection of fueller.
Preferably, the fueller includes mechanical oil pump and electronic oil pump；The oil inlet of the mechanical oil pump
It is connected to the oil inlet of the fueller, the oil outlet of the mechanical oil pump is connected to the oil outlet of the fueller；Institute
The oil inlet for stating electronic oil pump is connected to the oil inlet of the fueller, and the oil outlet of the electronic oil pump is filled with the fuel feeding
The oil outlet connection set.
Preferably, the clutch control includes two clutch control subsystems being connected in parallel, often
One clutch control subsystem includes clutch and clutch control valve；The input terminal of the clutch control valve with it is described
First fuel feeding output end connects, and the output end of the clutch control valve is connect with the actuating station of the clutch.
Preferably, each clutch control subsystem further includes second pressure regulating valve, the clutch
The output end of control valve includes first clutch output end and second clutch output end；The input of the second pressure regulating valve
End is connect with the first clutch output end, the output end of the second pressure regulating valve and the second clutch output end
Connection.
Preferably, the oil-feeding control system further includes the first aux. control valve, the second aux. control valve and
The output end of three aux. control valves, the oil-feeding control system includes the second fuel feeding output end, the guide of the gear reversal valve
End is connect with the second fuel feeding output end；The first end of first aux. control valve connects with the oil outlet of the electronic oil pump
Logical, the second end of first aux. control valve is connect with the first fuel feeding output end, the elder generation of first aux. control valve
It leads end to connect with the first end of second aux. control valve, spring terminal and the third of second aux. control valve assist
The first end of control valve connects, and the second end of the third aux. control valve is connect with the second fuel feeding output end.
Preferably, the hydraulic control system of the double-clutch speed changer further includes cooling and lubricating control system, institute
It includes oil cooler, flow control valve, the inverse ratio for adjusting the flow for entering bearing and clutch to state cooling and lubricating control system
Example solenoid valve and several be used for oilgear throttle orifice；The input terminal of the oil cooler and first aux. control valve
The connection of third end, the output end of the oil cooler is connected to throttle orifice described in several, several described throttle orifices respectively with
The input terminal of the inverse proportion solenoid valve, the first end of the flow control valve are connected to the guide end of the flow control valve,
The second end of the flow control valve is connected to the oil inlet of the fueller.
Preferably, the cooling and lubricating control system further includes by-passing valve, the first end of the by-passing valve, described
The guide end of by-passing valve is connect with the input terminal of the oil cooler respectively, the spring terminal of the by-passing valve, the by-passing valve it is defeated
Outlet is connect with the output end of the oil cooler respectively.
Compared with the prior art, the advantageous effect of the utility model embodiment is, the utility model provide it is a kind of double from
Close the hydraulic control system of speed changer, including clutch control, gear control system and oil-feeding control system, the clutch
Device control system and the gear control system are connected in parallel on the output end of the oil-feeding control system；The gear control
System includes multiple gear control subsystems being connected in parallel；Each gear control subsystem includes that first pressure is adjusted
Valve, gear reversal valve and several be used to switch the hydraulic cylinder of gear, input terminal and the confession of the first pressure regulating valve
The output end of EFM Electronic Fuel Management connects, and the output end of the first pressure regulating valve and the input terminal of the gear reversal valve connect
It connects, the output end of the gear reversal valve is connect with the input terminal of hydraulic cylinder described in several.By by multiple gear controls
Subsystem is connected in parallel on the output end of the oil-feeding control system, so that the oil-feeding control system is to the gear
When control system provides hydraulic oil or other driving mediums, the first pressure regulating valve can be the corresponding gear control
Subsystem provides enough power, required pressure source when meeting selector fork action, to ensure multiple gear controls
Oil circuit between subsystem is non-interference, is conducive to that gear control oil circuit is avoided to lead to it using series loop control mode
Shift process irregularity, and then the tolerance of hydraulic control system is effectively improved, improve the comfort of driving.
Description of the drawings
Fig. 1 is the structural schematic diagram of the hydraulic control system of the double-clutch speed changer in the utility model embodiment；
Fig. 2 is the structural schematic diagram of the gear control system in the utility model embodiment；
Fig. 3 is that the structure when oil-feeding control system in the utility model embodiment is connected with cooling and lubricating control system is shown
It is intended to；
Fig. 4 is the structural schematic diagram of the clutch control in the utility model embodiment；
Wherein, 1, gear control system；11, first pressure regulating valve；12, pilot flow control valve；13, gear commutates
Valve；14, hydraulic cylinder；15, two position two-way valve；16, the second accumulator；17, ratio pressure solenoid valve；2, oil-feeding control system；20、
Safety valve；21, main pressure regulating valve；22, pressure reducing valve；23, guide's pressure control valve；24, mechanical oil pump；241, driving gear；
242, driven gear；25, electronic oil pump；251, motor；26, the first aux. control valve；261, the second aux. control valve；262,
Three aux. control valves；27, the first check valve；28, filter；29, fuel tank；3, clutch control；30, clutch filters
Device；31, clutch control valve；32, second pressure regulating valve；33, pressure sensor；34, the first accumulator；4, cooling and lubricating control
System processed；41, oil cooler；42, pressure filter；43, the second check valve；44, flow control valve；45, inverse proportion solenoid valve；46, it saves
Discharge orifice；47, by-passing valve.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The hydraulic control system of a kind of double-clutch speed changer of the preferred embodiment in the utility model combined with Figure 1 and Figure 2, packet
Include clutch control 3, gear control system 1 and oil-feeding control system 2, the clutch control 3 and the gear
Control system 1 is connected in parallel on the output end of the oil-feeding control system 2；The gear control system 1 includes multiple parallel connections
The gear control subsystem of connection；Each gear control subsystem includes first pressure regulating valve 11, gear reversal valve 13
It is used to switch the hydraulic cylinder 14 of gear, the input terminal of the first pressure regulating valve 11 and the oil-feeding control system with several
2 output end connection, the output end of the first pressure regulating valve 11 is connect with the input terminal of the gear reversal valve 13, described
The output end of gear reversal valve 13 is connect with the input terminal of hydraulic cylinder described in several 14.
In the utility model embodiment, by being connected in multiple gear control subsystems in parallel the fuel feeding control
On the output end of system 2 processed so that the oil-feeding control system 2 to the gear control system 1 provide hydraulic oil or its
When his driving medium, the first pressure regulating valve 11 can provide enough move for the corresponding gear control subsystem
Power, required pressure source when meeting selector fork action, to ensure the oil circuit between multiple gear control subsystems
It is non-interference, be conducive to that gear control oil circuit is avoided to lead to its shift process irregularity using series loop control mode, into
And the tolerance of hydraulic control system is effectively improved, improve the comfort of driving.
Combined with Figure 1 and Figure 2, in the utility model embodiment, it should be noted that the first pressure regulating valve 11 is
Straight to drive pressure solenoid valve (VFS solenoid valves), the first pressure regulating valve 11 can be the corresponding gear control subsystem
Enough power is provided, required pressure source when meeting selector fork action, the gear reversal valve 13 leads to for two eight to be changed
To valve (VBS solenoid valves).Specifically, the gear control system 1 includes the first gear control subsystem F1, the control of the second gear
Subsystem F2 and third gear control subsystem F3；The first gear control subsystem F1, second gear control subsystem
The system F2 and third gear control subsystem F3 is connected in parallel on the output end of the oil-feeding control system 2, and described the
One gear control subsystem F1, the second gear control subsystem F2 and the third gear control subsystem F3 each by
One first pressure regulating valve 11 is connected in parallel on the output end of the oil-feeding control system 2, to ensure described
Oil between one gear control subsystem F1, the second gear control subsystem F2 and the third gear control subsystem F3
Road is non-interference.In shift, acted on by the commutation of the gear reversal valve 13, it is selectable to control the corresponding hydraulic pressure
Cylinder 14 executes gear switch action, to realize the gearshift function of multi gear position.
Combined with Figure 1 and Figure 2, in the utility model embodiment, each gear control subsystem further includes pilot flow
Control valve 12；The input terminal of the pilot flow control valve 12 is connect with the output end of the first pressure regulating valve 11, institute
The output end for stating pilot flow control valve 12 is connect with the input terminal of the gear reversal valve 13, since the pilot flow controls
Valve 12 can control the uninterrupted of the hydraulic oil into the gear reversal valve 13, to be conducive to control smooth gear shifting and
Gear is put into gear required time, and controls engaging speed when shift, and then improves the gear control system 1 in shift process
Ride comfort, effectively improve the comfort of the tolerance and driving of the gear control system 1.
In the present embodiment, it should be noted that the pilot flow control valve 12 is 3-position 4-way flow diverter valve,
In shift process, the first pressure regulating valve 11 pressure source required when providing for selector fork action；First, institute
It is 12 output hydraulic pressure of pilot flow control valve oil to state first pressure regulating valve 11, then by the pilot flow control valve 12
Hydraulic oil is provided for the gear reversal valve 13.In shift process, since the pilot flow control valve 12 can control liquid
Pressure oil by uninterrupted, to be conducive to by the pilot flow control valve 12 control shift ride comfort and gear hang
Shelves required time, meanwhile, the pilot flow control valve 12 can assist the gear reversal valve 13 to carry out shifting.
Combined with Figure 1 and Figure 2, in the utility model embodiment, the hydraulic cylinder of each gear control subsystem
14 be two；The output end of the gear reversal valve 13 is defeated including the first shift output end, the second shift output end, third shift
Outlet and the 4th shift output end, the first gear control terminal of a hydraulic cylinder 14 connect with the first shift output end
It connects, the second gear control terminal of a hydraulic cylinder 14 is connect with the second shift output end, another described hydraulic cylinder
14 the first gear control terminal is connect with third shift output end, the second gear control terminal of another hydraulic cylinder 14
It is connect with the 4th shift output end.
In the present embodiment, it should be noted that two hydraulic cylinders 14 are connected in the gear reversal valve 13 in parallel
On, the first gear control terminal of the hydraulic cylinder 14 and the second gear control terminal correspond to a gear respectively；It is described
Gear reversal valve 13 is that a hydraulic cylinder 14 provides by the first shift output end and the second shift output end
Selector fork pressure source required when acting, the gear reversal valve 13 are changed by third shift output end and the described 4th
Gear output end is that another described hydraulic cylinder 14 provides pressure source required when selector fork action, to realize the shelves
Position switching valve 13 controls four gears, and then realizes the multi gear position control of the hydraulic control system of the double-clutch speed changer.
It should be understood that the first gear control subsystem F1 is when controlling tetra- odd gears of D1, D3, D5 and D7,
Required pressure source when being provided for selector fork action by the first pressure regulating valve 11, and pass through the gear
Reversal valve 13 controls the ride comfort of gear shift；Likewise, the second gear control subsystem F2 is in control D2, D4, D6 and R
When keeping off four gears, required pressure source when being provided for selector fork action by the first pressure regulating valve 11,
And the ride comfort of gear shift is controlled by the gear reversal valve 13；The third gear control subsystem F3 control D8,
When D9 or more gears, required pressure when being provided for selector fork action by the first pressure regulating valve 11
Source, and the ride comfort that gear is shifted gears is controlled by the gear reversal valve 13.In this way, the hydraulic control of the double-clutch speed changer
System can be applied in the speed changer of 9-speed transmission or more gear, and ensure that the oil circuit of each gear part is not interfered, to
Improve the tolerance of hydraulic control system.
In the present embodiment, it should be noted that the hydraulic control system of the double-clutch speed changer is (lame in fault mode
Row pattern) under multi gear position alternative, due to there is nine gears, and multiple gear control subsystems are connected in institute in parallel
The output end of oil-feeding control system 2 is stated, therefore, under limping mode situation, corresponding shelves are selected according to speed and throttle size
Position.It can downshift to D6 gears if going wrong in driving procedure for example, D9 gears are 140kM/h and continue to travel, and
When D9 gear minimum operation speed is 80kM/h, dropping to D6 gears can reach within the scope of the threshold speed of D6 gear operations.
In conjunction with Fig. 1 and Fig. 3, in the utility model embodiment, the oil-feeding control system 2 includes fuel tank 29, fuel feeding dress
It sets, main pressure regulating valve 21 and guide's pressure control valve 23；The output end of the oil-feeding control system 2 is exported including the first fuel feeding
End, it is described it is main pressure regulating valve 21 first end, it is described it is main pressure regulating valve 21 second end respectively with the first fuel feeding output end
Connection；The oil inlet of the fueller is connected to the fuel tank 29, the oil outlet of the fueller and first fuel feeding
The of output end, the first end of the main pressure regulating valve 21, the second end of the main pressure regulating valve 21, the main pressure regulating valve 21
The guide end connection of three ends and the main pressure regulating valve 21, the 4th end of the main pressure regulating valve 21 and the fueller
Oil inlet is connected to, the first end of guide's pressure control valve 23, the guide end of guide's pressure control valve 23 and the master
The spring terminal connection of regulating valve 21, the second end of guide's pressure control valve 23 is pressed to connect with the oil inlet of the fueller
It is logical.When the hydraulic control system of the double-clutch speed changer starts, the fueller is by the hydraulic oil from the fuel tank
It is pumped out in 29, and hydraulic oil is delivered in the oil-feeding control system 2, the first fuel feeding output end is the oil-feeding control
The main output end of system 2, the first fuel feeding output end form the hydraulic control system of the double-clutch speed changer by pipeline
The working connection a, the working connection a of system are the clutch control 3, the gear control system 1 provides hydraulic oil.
In the present embodiment, it should be noted that the main pressure regulating valve 21 is three-position four-way valve, the main pressure regulating valve
The system pressure of 21 hydraulic control system for controlling the double-clutch speed changer, as the entire double-clutch speed changer
The pressure control unit of hydraulic control system can be adjusted the hydraulic control system of the double-clutch speed changer on demand.It is described
It is main pressure regulating valve 21 operation principle be：The guide end of the main pressure regulating valve 21 is connect with the first fuel feeding output end, i.e.,
The guide end of the main pressure regulating valve 21 is connected to the working connection a, can be overcome after the logical oil of the main pressure regulating valve 21 described
The spring force of the spring terminal of main pressure regulating valve 21, so that the spool movement of the main pressure regulating valve 21, and then adjust working connection a's
Pressure.
In the present embodiment, guide's pressure control valve 23 is two position two-way valve 1, and guide's pressure control valve 23 has
Have rear end feedback self-balancing function, the first end of guide's pressure control valve 23, guide's pressure control valve 23 elder generation
It leads end to connect with the spring terminal of the main pressure regulating valve 21, second end and the fueller of guide's pressure control valve 23
Oil inlet connection, i.e. the second end of guide's pressure control valve 23 connect with the working connection a, passes through guide's oil pressure
The hydraulic coupling of the first end of the guide end of control valve 23 and guide's pressure control valve 23 and guide's pressure control valve 23
Spring terminal spring dynamic balance and form the hydraulic oil of steady pressure, specifically, the spool of guide's pressure control valve 23
With certain cross-sectional area, pressure oil and the spool at the guide end of guide's pressure control valve 23 form certain pressure
Power, to push the spool overcome guide's pressure control valve 23 spring terminal spring force so that spring terminal and
The power at guide end interacts, and reaches a stable dynamic balance state.Specifically, when the pressure rise of the working connection a
When, the hydraulic fluid flow rate for flowing through guide's pressure control valve 23 increases, and increases to the oil pressure of guide's pressure control valve 23
Greatly, to which guide's pressure control valve 23 is under the pressure effect of hydraulic oil, push the spool voltage-controlled to the guide oil
The spring terminal of valve 23 processed moves, at this point, the valve port into the hydraulic oil of guide's pressure control valve 23 reduces, causes to flow through institute
The hydraulic fluid flow rate for stating guide's pressure control valve 23 becomes smaller, to by the hydraulic fluid pressure of guide's pressure control valve 23 drop
Low, acting on the guide end hydraulic fluid pressure of guide's pressure control valve 23 reduces, in guide's pressure control valve 23
Under acting force of the spring, the spool is moved to original direction, so that flowing through the hydraulic pressure of guide's pressure control valve 23
State of the oil pressure all-the-time stable in dynamic equilibrium.
In the utility model embodiment, the oil-feeding control system 2 further includes pressure reducing valve 22, and the of the pressure reducing valve 22
One end is connect with the second end of guide's pressure control valve 23, the second end of the pressure reducing valve 22 and the fueller into
Hydraulic fluid port is connected to, and the pressure reducing valve 22 is used as Secondary Control valve, is that the gear control system 1 provides stabilization by guide's oil circuit b
Source pressure.Each control subsystem further includes for stablizing the two position two-way valve 15 of oil pressure, ratio pressure solenoid valve
17 and second accumulator 16, the first end parallel connection of the first end of the two position two-way valve 15 and the ratio pressure solenoid valve 17 connect
It is connected on the guide's oil circuit b.
The second end of the two position two-way valve 15 is connect with the guide end of the gear reversal valve 13, the ratio pressure electricity
The second end of the magnet valve 17 pressure control terminal with the pressure absorption edge of the second accumulator 16, the pilot flow control valve 12 respectively
Connection.To which the pressure reducing valve 22 acts on the two position two-way valve 15 and the ratio pressure solenoid valve by guide's oil circuit b
On 17, and then stable source pressure is provided for the gear reversal valve 13, the pilot flow control valve 12.
In the utility model embodiment, the oil-feeding control system 2 further includes safety valve 20, and the of the safety valve 20
One end is connected to the oil inlet of the second end of the pressure reducing valve 22, the fueller respectively, the second end of the safety valve 20
It is connect with fuel tank 29.The safety valve 20 can limit the maximum pressure of the hydraulic control system of the double-clutch speed changer, with
The hydraulic control system of the double-clutch speed changer is set to be operated in a rational pressure limit, to improve double clutches
The safety of the hydraulic control system of speed changer.
In conjunction with Fig. 1 and Fig. 3, in the utility model embodiment, the fueller includes mechanical oil pump 24 and electronics oil
Pump 25；The oil inlet of the mechanical oil pump 24 is connected to the oil inlet of the fueller, the oil outlet of the mechanical oil pump 24
It is connected to the oil outlet of the fueller；The oil inlet of the electronic oil pump 25 is connected to the oil inlet of the fueller,
The oil outlet of the electronic oil pump 25 is connected to the oil outlet of the fueller.The hydraulic control system of the double-clutch speed changer
System provides pressure and hydraulic oil by the mechanical oil pump 24, when the hydraulic control system of the double-clutch speed changer is applied to vapour
Che Shi, when automobile is in start-stop stage, low-speed heave-load or High-temperature cooling state, the electronic oil pump 25 can effectively act as
Booster action.
In the utility model embodiment, it should be noted that the mechanical oil pump 24 is by driving 241 He of driving gear
Driven gear 242 works, and the electronic oil pump 25 is driven by motor 251.The oil inlet of the mechanical oil pump 24
It is connected to the oil inlet of the fueller by filter 28, the oil inlet of the electronic oil pump 25 passes through filter 28 and institute
The oil inlet connection for stating fueller, to be conducive to avoid the first pressure regulating valve 11 due to carrying impurity in hydraulic oil
And clamping stagnation；And the first check valve 27 is equipped at the oil inlet of the electronic oil pump 25, to prevent hydraulic oil from flowing backwards.
In conjunction with Fig. 1 and Fig. 4, in the utility model embodiment, the clutch control 3 is connected in parallel including two
Clutch control subsystem, each clutch control subsystem includes clutch and clutch control valve 31；It is described from
The input terminal of clutch control valve 31 is connect with the first fuel feeding output end, the output end of the clutch control valve 31 with it is described
The actuating station of clutch connects, so that two clutch control subsystems can be connected in first fuel feeding in parallel
On output end.
In conjunction with Fig. 1 and Fig. 4, in the utility model embodiment, each clutch control subsystem further includes second
The output end of pressure-regulating valve 32, the clutch control valve 31 includes first clutch output end and second clutch output
End；The input terminal of the second pressure regulating valve 32 is connect with the first clutch output end, the second pressure regulating valve
32 output end is connect with the second clutch output end.The clutch control valve 31 is two-position four-way solenoid valve, described
Second pressure regulating valve 32 is straight drive pressure solenoid valve (VFS solenoid valves).Specifically, by taking clutch C1 as an example, the clutch
The operation principle of control system 3 is：The oil-feeding control system 2 is that the clutch control 3 provides hydraulic oil, when described
Clutch control valve 31 it is electric after, hydraulic oil flows to the second pressure regulating valve 32, and the clutch control valve 31 adjusts liquid
The pressure of pressure oil is so that the clutch C1 is engaged.When gear switch, power does not interrupt, and the clutch control valve 31 is disconnected
Electricity, so that clutch C1 is released hydraulic fluid pressure.It is identical, the clutch C2 by same operation principle realize from
The engagement and separation of clutch C2, details are not described herein.
In the utility model embodiment, the clutch control valve 31 of each clutch control subsystem and institute
State oil circuit between clutch and be equipped with the first accumulator 34 and pressure sensor 33, first accumulator 34 for absorb from
Pressure in the second pressure regulating valve 32 and the clutch control valve 31 to the oil circuit of the clutch, the pressure pass
Sensor 33 is used to monitor the activating pressure of the clutch at any time, can the clutch pressure signals be passed to TCU in real time,
To provide safeguard for the closed-loop control of the clutch, so that the control of the hydraulic control system of the entire double clutch
System is more accurate.The clutch control 3 further includes clutch filter 30, the input terminal of the clutch filter 30
It is connected on the first fuel feeding output end, the input of the clutch control valve 31 of two clutch control subsystems
End is connected in parallel on the output end of the clutch filter 30, to ensure the oil circuit of the clutch control 3
Cleannes, and then the clutch control valve 31 is avoided the occurrence of or, clamping stagnation occurs in the spool of the second pressure regulating valve 32
Situation.
In conjunction with Fig. 1 and Fig. 3, in the utility model embodiment, the oil-feeding control system 2 further includes the control of the first auxiliary
The output end of valve 26, the second aux. control valve 261 and third aux. control valve 262, the oil-feeding control system 2 includes the second confession
Oily output end, the guide end of the gear reversal valve 13 are connect with the second fuel feeding output end；First aux. control valve
26 first end is connected to the oil outlet of the electronic oil pump 25, the second end of first aux. control valve 26 and described first
Fuel feeding output end connects, and the guide end of first aux. control valve 26 and the first end of second aux. control valve 261 connect
It connects, the spring terminal of second aux. control valve 261 is connect with the first end of the third aux. control valve 262, the third
The second end of aux. control valve 262 is connect with the second fuel feeding output end.In the hydraulic control system of the double-clutch speed changer
When system is in the condition of high temperature, the electronic oil pump 25 participates in work.At this point, the third aux. control valve 262 must be electric, to push away
Dynamic second aux. control valve 261 acts, and then second aux. control valve 262 is pushed to act so that the electronics oil
Pump 25 provides hydraulic oil for the cooling and lubricating control system 4.First aux. control valve 26, described in the present embodiment
Two aux. control valves 261 and the third aux. control valve 262 use two-position three way magnetic valve.
In conjunction with Fig. 1 and Fig. 3, in the utility model embodiment, the hydraulic control system of the double-clutch speed changer is also wrapped
Include cooling and lubricating control system 4, the cooling and lubricating control system 4 include oil cooler 41, flow control valve 44, for adjust into
Enter the flow of bearing and clutch inverse proportion solenoid valve 45 and several be used for oilgear throttle orifice；The oil cooler
41 input terminal is connect with the third end of first aux. control valve 26, the output end of the oil cooler 41 with several described in
Throttle orifice 46 be connected to, several described throttle orifices 46 respectively with the input terminal of the inverse proportion solenoid valve 45, the flow-rate adjustment
The first end of valve 44 is connected to the guide end of the flow control valve 44, the second end of the flow control valve 44 and the fuel feeding
The oil inlet of device is connected to.So that the hydraulic control system of the double-clutch speed changer can be controlled by the cooling and lubricating
System 4 carries out cooling and lubricating in system high temperature, realizes High-temperature cooling protection.
In addition, the cooling and lubricating control system 4 further includes pressure filter 42 and the second check valve 43, the pressure filter 42
First end is connect with the output end of the oil cooler 41, the output of the input terminal and the oil cooler 41 of second check valve 43
End connection, the output end of second check valve 43 are connect with the output end of the pressure filter 42, the output of the pressure filter 42
End is connected to throttle orifice described in several 46.
In the utility model embodiment, it should be noted that the electronic oil pump 25 participates in work in the condition of high temperature,
Hydraulic oil is controlled by the main pressure regulating valve 21 and flows to the cooling and lubricating control system 4, due to acting, generates heat, therefore
First pass through the oil cooler 41 into trip temperature adjust after, then by pressure filter 42 (forced filter) formed cutting oil,
Refined filtration can be carried out by the pressure filter 42, the cutting oil after refined filtration is divided into three oil circuits.Three oil are introduced in detail below
Road：First oil circuit, the cutting oil enter the inverse proportion solenoid valve 45, are adjusted by the inverse proportion solenoid valve 45
Into the uninterrupted of bearing and clutch, the effect of the inverse proportion solenoid valve 45 is the clutch by being controlled inside TCU
Required cooling flow size relationship proportional to the unit friction power of generation, TCU control units detect sliding situation of rubbing, pass through inside
It calculates, the corresponding demand how many flow in outside；The cutting oil enters the inverse proportion solenoid valve 45, by the inverse proportion
Solenoid valve 45 is adjusted, and corresponds to adjusting opening area by the flow control valve 44 and responds the traffic requirement passed through,
Uninterrupted into bearing is definite value, is stablized by pressure difference before and after bearings throttle orifice and clutch throttle orifice respectively to protect
It holds.Article 2 oil circuit, the throttle orifice 46 being connected in series with by two, and spray lubrication is carried out due to described in two to gear
The front and back pressure difference of throttle orifice 46 is definite value, therefore can ensure that the flow passed through is definite value.Article 3 oil circuit passes through the flow
Regulating valve 44 carries out flow demand adjusting, if flow is excessive, it will cause stirring, oily resistance is excessive, inefficiency, if flow is too small,
Then cooling and lubricating is not in place, causes life loss, so that the hydraulic pressure that the flow control valve 44 pumps out the mechanical oil pump 24
Oil stream amount carries out feedback regulation.
In conjunction with Fig. 1 and Fig. 3 in the utility model embodiment, the cooling and lubricating control system 4 further includes by-passing valve 47,
The first end of the by-passing valve 47, the by-passing valve 47 guide end connect respectively with the input terminal of the oil cooler 41, it is described
The spring terminal of by-passing valve 47, the by-passing valve 47 output end connect respectively with the output end of the oil cooler 41.The bypass
Valve 47 is two position two-way valve 1, since the by-passing valve 47 and the oil cooler 41 are connected in parallel, when the oil cooler 41
When being blocked with pressure filter 42, when pressure reaches certain value, the by-passing valve 47 is opened, so that cutting oil is logical
It crosses, and then prevents the undesirable situation of cooling and lubricating from occurring.
In the utility model embodiment, the cooling and lubricating control system 4 can realize that on-demand supply, TCU controls are single
Member passes through to set and slide by detecting temperature inside speed changer, in conjunction with run time, rotating speed, torque etc. calculating unit friction power
Power and uninterrupted direct proportionality rub to control flow demand.
In conclusion the utility model embodiment provides a kind of hydraulic control system of double-clutch speed changer, including clutch
Device control system 3, gear control system 1 and oil-feeding control system 2, the clutch control 3 and gear control system
System 1 is connected in parallel on the output end of the oil-feeding control system 2；The gear control system 1 includes multiple is connected in parallel
Gear control subsystem；Each gear control subsystem includes first pressure regulating valve 11, gear reversal valve 13 and several
A hydraulic cylinder 14 for switching gear, the input terminal of the first pressure regulating valve 11 are defeated with the oil-feeding control system 2
Outlet connects, and the output end of the first pressure regulating valve 11 is connect with the input terminal of the gear reversal valve 13, the gear
The output end of reversal valve 13 is connect with the input terminal of hydraulic cylinder described in several 14.By by multiple gear control subsystems
It is connected in parallel on the output end of the oil-feeding control system 2, so that the oil-feeding control system 2 is controlled to the gear
When system 1 provides hydraulic oil or other driving mediums, the first pressure regulating valve 11 can be the corresponding gear control
Subsystem provides enough power, required pressure source when meeting selector fork action, to ensure multiple gear controls
Oil circuit between subsystem is non-interference, is conducive to that gear control oil circuit is avoided to lead to it using series loop control mode
Shift process irregularity, and then the tolerance of the gear control system 1 is effectively improved, improve the comfort of driving.
In addition, the hydraulic control system configuration of the double-clutch speed changer of the utility model embodiment is simple, control valve is less,
Cost is relatively low；The cooling and lubricating control system 4 can effectively promote cooling and lubricating efficiency, reduce heat power lost；It is described
The hydraulic control architectures of gear control system 1 are simple, do not interfere between each other, and pressure, flow control side are realized to shift oil circuit
Formula and the optional economic gear operation of limping pattern.The oil-feeding control system 2 uses double pump structure, improves efficiency, energy
Enough realize miscellaneous function of the electronic pump under three kinds of start and stop, low speed, high temperature operating modes.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the scope of protection of the utility model.
Claims (10)
1. a kind of hydraulic control system of double-clutch speed changer, which is characterized in that including clutch control, gear control system
System and oil-feeding control system, the clutch control and the gear control system are connected in the oil-feeding control system in parallel
On the output end of system；
The gear control system includes multiple gear control subsystems being connected in parallel；Each gear control subsystem packet
Include first pressure regulating valve, gear reversal valve and several be used to switch the hydraulic cylinder of gear, the first pressure regulating valve
Input terminal is connect with the output end of the oil-feeding control system, and output end and the gear of the first pressure regulating valve commutate
The input terminal of valve connects, and the output end of the gear reversal valve is connect with the input terminal of hydraulic cylinder described in several.
2. the hydraulic control system of double-clutch speed changer as described in claim 1, which is characterized in that each gear control
Subsystem further includes pilot flow control valve；The input terminal of the pilot flow control valve is defeated with the first pressure regulating valve
Outlet connects, and the output end of the pilot flow control valve is connect with the input terminal of the gear reversal valve.
3. the hydraulic control system of double-clutch speed changer as described in claim 1, which is characterized in that each gear control
The hydraulic cylinder of subsystem is two；The output end of the gear reversal valve is defeated including the first shift output end, the second shift
Outlet, third shift output end and the 4th shift output end；The first gear control terminal and described first of one hydraulic cylinder
Output end of shifting gears connects, and the second gear control terminal of a hydraulic cylinder is connect with the second shift output end, another
First gear control terminal of the hydraulic cylinder is connect with third shift output end, the second gear of another hydraulic cylinder
Control terminal is connect with the 4th shift output end.
4. such as the hydraulic control system of claims 1 to 3 any one of them double-clutch speed changer, which is characterized in that the confession
EFM Electronic Fuel Management includes fuel tank, fueller, main pressure regulating valve and guide's pressure control valve；The oil-feeding control system it is defeated
Outlet include the first fuel feeding output end, it is described it is main pressure regulating valve first end, it is described it is main pressure regulating valve second end respectively with institute
State the connection of the first fuel feeding output end；
The oil inlet of the fueller is connected to the fuel tank, and the oil outlet of the fueller is exported with first fuel feeding
End, the first end of the main pressure regulating valve, the second end of the main pressure regulating valve, the third end of the main pressure regulating valve and institute
The guide end connection of main pressure regulating valve is stated, the 4th end of the main pressure regulating valve is connected to the oil inlet of the fueller, institute
The first end of guide's pressure control valve, the guide end of guide's pressure control valve and the spring terminal of the main pressure regulating valve is stated to connect
It connects, the second end of guide's pressure control valve is connected to the oil inlet of the fueller.
5. the hydraulic control system of double-clutch speed changer as claimed in claim 4, which is characterized in that the fueller includes
Mechanical oil pump and electronic oil pump；The oil inlet of the mechanical oil pump is connected to the oil inlet of the fueller, the machinery oil
The oil outlet of pump is connected to the oil outlet of the fueller；The oil inlet of the oil inlet of the electronic oil pump and the fueller
Mouth connection, the oil outlet of the electronic oil pump are connected to the oil outlet of the fueller.
6. the hydraulic control system of double-clutch speed changer as claimed in claim 4, which is characterized in that the clutch control system
System includes two clutch control subsystems being connected in parallel, and each clutch control subsystem includes clutch and clutch
Device control valve；The input terminal of the clutch control valve is connect with the first fuel feeding output end, the clutch control valve
Output end is connect with the actuating station of the clutch.
7. the hydraulic control system of double-clutch speed changer as claimed in claim 6, which is characterized in that each clutch control
Subsystem further includes second pressure regulating valve, and the output end of the clutch control valve includes first clutch output end and
Two clutch outputs；The input terminal of the second pressure regulating valve is connect with the first clutch output end, and described second
The output end of pressure-regulating valve is connect with the second clutch output end.
8. the hydraulic control system of double-clutch speed changer as claimed in claim 5, which is characterized in that the oil-feeding control system
Further include the first aux. control valve, the second aux. control valve and third aux. control valve, the output end of the oil-feeding control system
Including the second fuel feeding output end, the guide end of the gear reversal valve is connect with the second fuel feeding output end；
The first end of first aux. control valve is connected to the oil outlet of the electronic oil pump, first aux. control valve
Second end is connect with the first fuel feeding output end, the guide end of first aux. control valve and second aux. control valve
First end connection, the spring terminal of second aux. control valve is connect with the first end of the third aux. control valve, described
The second end of third aux. control valve is connect with the second fuel feeding output end.
9. the hydraulic control system of double-clutch speed changer as claimed in claim 8, which is characterized in that the double-clutch speed changer
Hydraulic control system further include cooling and lubricating control system, the cooling and lubricating control system includes oil cooler, flow-rate adjustment
Valve, the inverse proportion solenoid valve for adjusting the flow for entering bearing and clutch and several be used for the throttling of oilgear
Hole；
The input terminal of the oil cooler is connect with the third end of first aux. control valve, if the output end of the oil cooler with
The dry throttle orifice connection, several described throttle orifices respectively with the input terminal of the inverse proportion solenoid valve, the flow tune
The first end of section valve is connected to the guide end of the flow control valve, the second end of the flow control valve and the fueller
Oil inlet connection.
10. the hydraulic control system of double-clutch speed changer as claimed in claim 9, which is characterized in that the cooling and lubricating control
System processed further includes by-passing valve, and the first end of the by-passing valve, the guide end of the by-passing valve are defeated with the oil cooler respectively
Enter end connection, the spring terminal of the by-passing valve, the by-passing valve output end connect respectively with the output end of the oil cooler.
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| CN201721587581.9U CN207621329U (en) | 2017-11-23 | 2017-11-23 | A kind of hydraulic control system of double-clutch speed changer |
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| CN201721587581.9U CN207621329U (en) | 2017-11-23 | 2017-11-23 | A kind of hydraulic control system of double-clutch speed changer |
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| CN207621329U true CN207621329U (en) | 2018-07-17 |
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