CN108953305B - Hydraulic control device and hydraulic control system - Google Patents
Hydraulic control device and hydraulic control system Download PDFInfo
- Publication number
- CN108953305B CN108953305B CN201811180579.9A CN201811180579A CN108953305B CN 108953305 B CN108953305 B CN 108953305B CN 201811180579 A CN201811180579 A CN 201811180579A CN 108953305 B CN108953305 B CN 108953305B
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- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 230000001050 lubricating effect Effects 0.000 claims abstract description 13
- 238000005461 lubrication Methods 0.000 claims description 36
- 230000001105 regulatory effect Effects 0.000 abstract description 8
- 230000001276 controlling effect Effects 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 141
- 239000010720 hydraulic oil Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention provides a hydraulic control device and a hydraulic control system, and relates to the field of hydraulic control. The hydraulic control device comprises a pressurizing device, a control device, a lubricating and cooling device, a clutch, a gear shifting mechanism and an oil tank; the oil way of the pressurizing device is connected with the oil way of the control device and is used for pressurizing the control device; the oil circuit of the control device is respectively connected with the lubricating and cooling device, the clutch and the oil circuit of the gear shifting mechanism and is used for controlling the lubricating and cooling device, the clutch and the gear shifting mechanism; the pressurizing device and the control device are arranged inside the oil tank. The hydraulic control system has the advantages that the hydraulic pressure of the system is controlled and regulated through a plurality of valves under the condition that the actuating mechanism does not need to be controlled, the lower pressure is kept, the lubricating and cooling requirements are met, and the purpose of energy conservation is achieved; under the condition that the actuating mechanism is required to act, the oil pressure of the regulating system is controlled through a plurality of valves, so that the actuating mechanism is enabled to respond quickly, and the efficiency is improved.
Description
Technical Field
The invention relates to the technical field of hydraulic control, in particular to a hydraulic control device and a hydraulic control system.
Background
The hydraulic control system is based on power provided by a motor, and uses a hydraulic pump to convert mechanical energy into pressure so as to push hydraulic oil. The flow direction and the oil pressure of hydraulic oil are changed by controlling various valves, so that various devices are pushed.
The hydraulic control system of the new energy automobile transmission has the functions of controlling a plurality of clutches, a gear shifting mechanism and the like, and realizes the switching of the whole automobile operation mode and gear. At present, a control oil way and a lubricating oil way are mostly designed in a non-split way, and the two oil ways share a hydraulic source for oil supply.
The oil pressure of the existing system is kept in a high-pressure state at most moments, so that the efficiency is low and the energy is consumed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a hydraulic control device and a hydraulic control system, so as to solve the problems that the oil pressure of the existing system is kept in a high-pressure state at most moments, the efficiency is low and energy is consumed.
In order to achieve the above purpose, the technical scheme adopted by the embodiment of the invention is as follows:
in a first aspect, an embodiment of the present invention provides a hydraulic control apparatus, including:
the device comprises a pressurizing device, a control device, a lubricating and cooling device, a clutch, a gear shifting mechanism and an oil tank; the oil way of the pressurizing device is connected with the oil way of the control device and is used for pressurizing the control device; the oil circuit of the control device is respectively connected with the lubricating and cooling device, the clutch and the oil circuit of the gear shifting mechanism and is used for controlling the lubricating and cooling device, the clutch and the gear shifting mechanism; the pressurizing device and the control device are arranged inside the oil tank.
Further, the pressurizing apparatus includes: two oil filters, a plurality of oil pumps and a plurality of check valves; the two oil filters include a first oil filter and a second oil filter; one end of a first oil filter is connected with an oil tank, the other end of the first oil filter is connected with a plurality of oil pumps, each oil pump is connected with a one-way valve, the plurality of one-way valves are connected with one end of a second oil filter, and the other end of the second oil filter is connected with an oil path of control equipment.
Further, the control apparatus includes: the system valve, the lubrication valve, the third one-way valve, the first throttling hole, the system electromagnetic valve, the clutch electromagnetic valve, the hydraulic control reversing valve, the first electromagnetic pressure reducing valve and the second electromagnetic pressure reducing valve; the pressurizing equipment is connected with the system valve, the third one-way valve, the system electromagnetic valve, the clutch electromagnetic valve, the hydraulic control reversing valve, the first electromagnetic pressure reducing valve and the second electromagnetic pressure reducing valve; the system valve is also connected with the lubrication valve, the system electromagnetic valve and the oil tank; the lubrication valve is also connected with the first throttling hole and the oil tank; the first throttling hole is also connected with the third one-way valve, the lubrication valve and the lubrication cooling device; the clutch electromagnetic valve is also connected with the hydraulic control reversing valve; the hydraulic control reversing valve is also connected with the clutch; the first electromagnetic pressure reducing valve and the second electromagnetic pressure reducing valve are also connected with the gear shifting mechanism.
Further, the valve further comprises a fourth one-way valve; one end of the fourth one-way valve is connected with the pressurizing device, and the other end of the fourth one-way valve is connected with the first electromagnetic pressure reducing valve.
Further, the device comprises a first pressure sensor, wherein the first pressure sensor is connected with the fourth one-way valve, the first electromagnetic valve pressure reducing valve and the second electromagnetic pressure reducing valve.
Further, the device also comprises a first energy accumulator and a second energy accumulator; the first energy accumulator is connected with the pressurizing equipment and is arranged between the pressurizing equipment and the fourth one-way valve; the second energy accumulator is connected with the other end of the fourth one-way valve and is arranged between the fourth one-way valve and the first electromagnetic pressure reducing valve.
Further, the safety valve is also included; the relief valve is disposed between the pressurization device and the first accumulator.
Further, the gear shifting mechanism comprises a first hydraulic port and a second hydraulic port, wherein the first hydraulic port is connected with the first electromagnetic pressure reducing valve, and the second hydraulic port is connected with the second electromagnetic pressure reducing valve.
Further, the gear shifting mechanism further comprises a second pressure sensor and a third pressure sensor; the second pressure sensor is connected with the first hydraulic port and the first electromagnetic pressure reducing valve; the third pressure sensor is connected with the second hydraulic port and the second electromagnetic pressure reducing valve.
In a second aspect, an embodiment of the present invention further provides a hydraulic control system, including the hydraulic control device in the first aspect.
The beneficial effects of the invention are as follows: under the condition that an executing mechanism does not need to be controlled, the oil pressure of the system is controlled and regulated through a plurality of valves, so that the lower pressure is kept, the lubricating and cooling requirements are met, and the aim of saving energy is fulfilled; under the condition that the actuating mechanism is required to act, the oil pressure of the system is controlled and regulated through a plurality of valves, so that the actuating mechanism responds quickly, and the efficiency is improved; meanwhile, the gear control directly controls the output oil pressure through the valve, and has the advantages of accurate control, quick response and high gear shifting efficiency, thereby improving driving feeling.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a hydraulic control apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of a pressurizing device in a hydraulic control apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a control device in a hydraulic control apparatus according to an embodiment of the present invention;
fig. 4 is a schematic view of a gear shifting mechanism in a hydraulic control device according to an embodiment of the present invention.
Icon: 100-hydraulic control device; 101-an oil tank; 200-pressurizing equipment; 201-a first oil filter; 202-a first oil pump; 203-a second oil pump; 204-a first one-way valve; 205-a second one-way valve; 206-a second oil filter; 300-a control device; 301-a system valve; 3011-a first oil inlet; 3012-a second oil inlet; 3013-fourth overflow; 3014-a third overflow port; 3015-a second overflow port; 3016-a first overflow; 3017-a third oil inlet; 302-a third one-way valve; 303-lubrication valve; 3031 to fourth oil inlets; 3032-a fifth overflow port; 3033-sixth overflow port; 304-a first orifice; 305-a system solenoid valve; 306-a clutch solenoid valve; 307-hydraulically controlled reversing valve; 3071-fifth oil inlet; 3072-seventh overflow port; 3073-sixth oil inlet; 3074-eighth overflow port; 3075-a ninth overflow port; 308-fourth one-way valve; 309-a first electromagnetic pressure reducing valve; 3091-tenth overflow port; 3092-eleventh overflow port; 3093-seventh oil inlet; 310-a second electromagnetic pressure reducing valve; 3101-twelfth overflow; 3102-thirteenth overflow; 3103-eighth oil inlet; 311-a first pressure sensor; 312-a safety valve; 313-a first accumulator; 314—a second accumulator; 315-a fifth one-way valve; 400-lubricating and cooling equipment; 500-clutch; 600-gear shifting mechanism; 601-a shift mechanism body; 602-a second pressure sensor; 603-a third pressure sensor; 604-a first hydraulic port; 605-second hydraulic port.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, the hydraulic control apparatus 100 includes:
the pressurizing device 200, the control device 300, the lubrication cooling device 400, the clutch 500, the shift mechanism 600, and the oil tank 101.
Specifically, the oil passage of the pressurizing device 200 is connected to the oil passage of the control device 300, and is used for pressurizing the control device 300.
The pressurizing device 200 extracts hydraulic oil from the oil tank 101 and pressurizes the hydraulic oil to the control device 300, wherein a plurality of oil overflow ports are arranged in the control device 300, part of the oil overflow ports are connected with the oil tank 101, and the hydraulic oil overflowed from the oil overflow ports flows back to the oil tank 101.
Specifically, the oil passages of the control device 300 are respectively connected with the oil passages of the lubrication cooling device 400, the clutch 500 and the shift mechanism 600, for controlling the lubrication cooling device 400, the clutch 500 and the shift mechanism 600.
Optionally, the lubrication cooling apparatus 400 may be used for bearing lubrication, gear lubrication, motor heat dissipation, etc., and the specific application is not limited, and the actual situation of the use of the client is the same.
Specifically, the pressurizing device 200 and the control device 300 are provided inside the oil tank 101.
In the embodiment, under the condition that an executing mechanism does not need to be controlled, the oil pressure of the regulating system is controlled through a plurality of valves, so that the lower pressure is kept, the lubricating and cooling requirements are met, and the purpose of energy conservation is achieved; under the condition that the actuating mechanism is required to act, the oil pressure of the regulating system is controlled through a plurality of valves, so that the actuating mechanism is enabled to respond quickly, and the efficiency is improved.
As shown in fig. 2:
in one implementation, the pressurizing device 200 includes: the oil filters, the oil pumps and the check valves are identical in number and correspond to each other one by one.
Wherein the two oil filters include a first oil filter 201 and a second oil filter 206; one end of the first oil filter 201 is connected to the oil tank 101, the other end of the first oil filter 201 is connected to the plurality of oil pumps, each of the oil pumps is connected to one check valve, the plurality of check valves is connected to one end of the second oil filter 206, and the other end of the second oil filter 206 is connected to an oil passage of the control apparatus 300.
Two oil pumps (a first oil pump 202 and a second oil pump 203), two check valves (a first check valve 204 and a second check valve 205), and the other end of the first oil filter 201 is connected to the first oil pump 202 and the second oil pump 203 are described as an example. The first oil pump 202 is connected to one end of a first check valve 204, the second oil pump 203 is connected to one end of a second check valve 205, the other ends of the first check valve 204 and the second check valve 205 are connected to one end of a second oil filter 206, and the other end of the second oil filter 206 is connected to an oil passage of the control apparatus 300.
It should be noted that the number of the plurality of oil pumps and the plurality of check valves is not limited to the above example, and for example, three, two, one, four, two, etc. may be used, and the actual design of the vehicle may be used.
As shown in fig. 3:
in one implementation, the control device 300 includes: a system valve 301, a lubrication valve 303, a third check valve 302, a first orifice 304, a system solenoid valve 305, a clutch solenoid valve 306, a pilot operated directional valve 307, a first electromagnetic relief valve 309, and a second electromagnetic relief valve 310.
The pressurizing apparatus 200 is connected to a system valve 301, a third check valve 302, a system solenoid valve 305, a clutch solenoid valve 306, a pilot operated directional valve 307, a first electromagnetic pressure reducing valve 309, and a second electromagnetic pressure reducing valve 310.
The system valve 301 is further connected to the lubrication valve 303, the system solenoid valve 305 and the oil tank 101, the lubrication valve 303 is further connected to the first orifice 304 and the oil tank 101, the first orifice 304 is further connected to the third check valve 302, the lubrication valve 303 and the lubrication cooling device 400, the clutch solenoid valve 306 is further connected to the pilot operated directional valve 307, the pilot operated directional valve 307 is further connected to the clutch 500, and the first electromagnetic pressure reducing valve 309 and the second electromagnetic pressure reducing valve 310 are further connected to the shift mechanism 600.
Specifically, in this embodiment, the system valve 301 includes: a first oil inlet 3011, a second oil inlet 3012, a third oil inlet 3017, a first overflow port 3016, a second overflow port 3015, a third overflow port 3014, and a fourth overflow port 3013.
The lubrication valve 303 includes: a fourth oil inlet 3031, a fifth overflow port 3032 and a sixth overflow port 3033.
The second oil filter 206 is connected to the first oil inlet 3011, the second oil inlet 3012, one end of the system solenoid valve 305 and one end of the third check valve 302, the other end of the system solenoid valve 305 is connected to the third oil inlet 3017, the other end of the third check valve 302 is connected to the first orifice 304, the first overflow port 3016, the second overflow port 3015 and the fourth overflow port 3013 are connected to the oil tank 101, the third overflow port 3014 is connected to the fourth oil inlet 3031, the sixth overflow port 3033 and the first orifice 304 of the lubrication valve 303, and the fifth overflow port 3032 of the lubrication valve 303 is connected to the oil tank 101.
Wherein, let the pressure transmitted by the oil path of the pressurizing device 200 be P L The opening pressure of the third check valve 302 is P S The relief pressure of the system valve 301 is P Y ，P Y Can be passed through the system solenoid valve305 adjust the pressure of the third oil inlet 3017 to make the change.
When P S <P Y When (1):
in the low pressure state, P L <P S At this time, the first oil inlet 3011 and the third overflow port 3014 of the system valve 301 are not conducted, the third check valve 302 is closed, the first orifice 304 has no overflow flow, and the lubrication cooling device 400 has no flow;
in the medium-voltage state, P S <P L <P Y At this time, the first oil inlet 3011 and the third overflow port 3014 of the system valve 301 are not conducted, the third check valve 302 is opened, the first orifice 304 has an overflow flow, and the lubrication cooling device 400 has a smaller flow;
in the high-voltage state, P Y <P L At this time, the first oil inlet 3011 of the system valve 301 is conducted with the third overflow port 3014, the third check valve 302 is opened, the first orifice 304 has an overflow flow, the flow of the third overflow port 3014 flows into the fourth oil inlet 3031 of the lubrication valve 303 and flows to the first orifice 304 through the sixth overflow port 3033, if the flow pressure exceeds the overflow pressure of the lubrication valve 303, the fourth oil inlet 3031 is conducted with the fifth overflow port 3032, and a part of the flow overflows from the fifth overflow port 3032 back to the oil tank 101.
When P Y <P S When (1):
in the low pressure state, P L <P Y At this time, the first oil inlet 3011 and the third overflow port 3014 of the system valve 301 are not conducted, the third check valve 302 is closed, the first orifice 304 has no overflow flow, and the lubrication cooling device 400 has no flow;
in the medium-voltage state, P Y <P L <P S At this time, the first oil inlet 3011 of the system valve 301 is conducted with the third overflow port 3014, the third check valve 302 is not opened, the first orifice 304 is free from excessive flow, the flow of the third overflow port 3014 flows into the fourth oil inlet 3031 of the lubrication valve 303 and flows to the first orifice 304 through the sixth overflow port 3033, if the flow pressure exceeds the overflow pressure of the lubrication valve 303, the fourth oil inlet 3031 is conducted with the fifth overflow port 3032, and part of the flow overflows from the fifth overflow port 3032 back to the oil tank 101;
in the high-voltage state, P S <P L At this time, the first oil inlet 3011 of the system valve 301 is conducted with the third overflow port 3014, the third check valve 302 is opened, the first orifice 304 has an overflow flow, the flow of the third overflow port 3014 flows into the fourth oil inlet 3031 of the lubrication valve 303 and flows to the first orifice 304 through the sixth overflow port 3033, if the flow pressure exceeds the overflow pressure of the lubrication valve 303, the fourth oil inlet 3031 is conducted with the fifth overflow port 3032, and a part of the flow overflows from the fifth overflow port 3032 back to the oil tank 101.
Optionally, in this embodiment, the pilot operated directional valve 307 includes: fifth oil inlet 3071, sixth oil inlet 3073, seventh overflow port 3072, eighth overflow port 3074, and ninth overflow port 3075.
The fifth oil inlet 3071 is connected with one end of the clutch electromagnetic valve 306, the sixth oil inlet 3073 and the other end of the clutch electromagnetic valve 306 are connected with the pressurizing device 200, the seventh oil overflow port and the eighth oil overflow port are connected with the oil tank 101, and the ninth overflow port 3075 is connected with the clutch 500 for controlling the clutch 500.
In this embodiment: the first electromagnetic relief valve 309 includes: tenth overflow port 3091, eleventh overflow port 3092, seventh oil inlet 3093.
The second electromagnetic relief valve 310 includes: a twelfth overflow port 3101, a thirteenth overflow port 3102, and an eighth oil inlet port 3103.
The seventh oil inlet 3093 and the eighth oil inlet 3103 are connected to the pressurizing device 200, the tenth overflow port 3091 and the twelfth overflow port 3101 are connected to the gear shifting mechanism 600, and the eleventh overflow port 3092 and the thirteenth overflow port 3102 are connected to the oil tank 101.
When the clutch 500 is not engaged, the system solenoid valve 305 increases the pressure of the third oil inlet 3017 of the system valve 301, thereby reducing the relief pressure of the system valve 301. In this state, the outlet pressure of the pressurizing apparatus 200 is limited to a low state, the flow rate is mainly used for lubrication of the cooling apparatus 400, and the power consumption of the pressurizing apparatus 200 can be reduced.
When there is a demand for engagement of the clutch 500, the response speed to the engagement of the clutch 500 is required to be high, and therefore the flow rate of the system needs to be supplied to the clutch 500 in a concentrated manner in a short time.
First, the system solenoid valve 305 reduces the pressure of the third oil inlet 3017, so that the overflow pressure of the system valve 301 is increased, and the purpose of little overflow or even no overflow is achieved. In addition to a small amount of flow through the third check valve 302 and the first orifice 304 for necessary lubrication, other flows may be concentrated for the clutch 500.
Meanwhile, the clutch electromagnetic valve 306 controls the pressure of the fifth oil inlet 3071 of the pilot operated directional valve 307 to conduct the sixth oil inlet 3073 and the ninth overflow port 3075, and the flow enters the clutch cylinder through the sixth oil inlet 3073 to charge the clutch 500. Meanwhile, the clutch electromagnetic valve 306 can adjust the pressure of the fifth oil inlet 3071 in real time, so that the complete controllability of the oil filling and combining processes of the clutch 500 is realized, and the impact of a transmission system is reduced.
Optionally, a fourth check valve 308 is further included, where one end of the fourth check valve 308 is connected to the pressurizing device 200, and the other end is connected to the first electromagnetic pressure reducing valve 309.
Specifically, the fourth check valve 308 is configured to control the oil inlet pressure of the first electromagnetic pressure reducing valve 309 and the second electromagnetic pressure reducing valve 310.
In this embodiment, the first pressure sensor 311 is further included, and the first pressure sensor 311 is connected to the fourth check valve 308, the first electromagnetic pressure reducing valve 309, and the second electromagnetic pressure reducing valve 310.
Specifically, the first pressure sensor 311 may monitor pressure data on the oil circuit in real time, and use the pressure data as a basis for pressure adjustment of the system solenoid valve 305.
Optionally, in the present embodiment, a first accumulator 313 and a second accumulator 314 are provided.
The first accumulator 313 is connected to the pressurizing device 200 and is provided between the pressurizing device 200 and the fourth check valve 308.
The second accumulator 314 is connected to the other end of the fourth check valve 308, and is disposed between the fourth check valve 308 and the first electromagnetic pressure reducing valve 309.
Specifically, the first energy accumulator 313 and the second energy accumulator 314 can effectively absorb the dynamic impact of oil, reduce the pressure overshoot and the local high pressure impact, and protect the components of the hydraulic system.
A relief valve 312 is also included, said relief valve 312 being provided between said pressurizing device 200 and said first accumulator 313.
Specifically, the relief valve 312 is configured to relieve pressure when the pressure of the oil path is too high, so as to ensure the safety of the whole oil path.
Optionally, a fifth one-way valve 315 is further provided, one end of the fifth one-way valve 315 is connected to the seventh overflow port 3072, the eleventh overflow port 3092 and the thirteenth overflow port 3102, and one end of the fifth one-way valve is connected to the oil tank 101, so as to control the pressure when the seventh overflow port 3072, the eleventh overflow port 3092 and the thirteenth overflow port 3102 overflow to the oil tank 101.
As shown in fig. 4:
in the present embodiment, the gear shifting mechanism 600 includes a first hydraulic port 604 and a second hydraulic port 605, the first hydraulic port 604 being connected to the first electromagnetic pressure reducing valve 309, and the second hydraulic port 605 being connected to the second electromagnetic pressure reducing valve 310.
Specifically, the first hydraulic port 604 and the second hydraulic port 605 are provided in the shift mechanism main body 601, the first hydraulic port 604 is connected to the tenth overflow port 3091, and the second hydraulic port 605 is connected to the twelfth overflow port 3101.
Optionally, in this embodiment, the gear shifting mechanism 600 further includes a second pressure sensor 602 and a third pressure sensor 603.
The second pressure sensor 602 is connected to the first hydraulic port 604 and the first electromagnetic relief valve 309;
the third pressure sensor 603 is connected to the second hydraulic port 605 and the second electromagnetic relief valve 310.
Specifically, the second pressure sensor 602 is configured to detect the hydraulic pressure of the first hydraulic port 604, and the third pressure sensor 603 is configured to detect the hydraulic pressure of the second hydraulic port 605.
When the shift mechanism 600 is required to perform an action, the first electromagnetic pressure reducing valve 309 and the second electromagnetic pressure reducing valve 310 cooperate to perform an action according to a requirement of a shift direction, so that a reasonable pressure difference is formed between the first hydraulic port 604 and the second hydraulic port 605 of the shift mechanism 600 at two sides of the shift mechanism main body 601, and the shift mechanism 600 is pushed to perform an action. Meanwhile, the second pressure sensor 602 and the third pressure sensor 603 can measure pressure data on two sides of the gear shifting mechanism main body 601 in real time, and the pressure data are used as feedback basis for pressure adjustment of the first electromagnetic pressure reducing valve 309 and the second electromagnetic pressure reducing valve 310.
According to the invention, under the condition that an executing mechanism does not need to be controlled, the oil pressure of the system is controlled and regulated through a plurality of valves, so that the lower pressure is kept, the lubricating and cooling requirements are met, and the purpose of energy conservation is achieved; under the condition that the actuating mechanism is required to act, the oil pressure of the system is controlled and regulated through a plurality of valves, so that the actuating mechanism responds quickly, and the efficiency is improved; meanwhile, the gear control directly controls the output oil pressure through the valve, and has the advantages of accurate control, quick response and high gear shifting efficiency, thereby improving driving feeling.
The present invention also provides a hydraulic control system including the hydraulic control apparatus 100 as described above.
Specifically, the hydraulic control system is applied to a hybrid power system of a hybrid power automobile, and the system further comprises an engine, an ISG (Integrated Starter Generator, single-shaft parallel moderate hybrid) motor, a driving motor, a transmission, a gear transmission system and the like.
The hydraulic control system in this embodiment uses the hydraulic control device 100, and its use method and advantageous effects are the same.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The hydraulic control device is characterized by comprising a pressurizing device, a control device, a lubricating and cooling device, a clutch, a gear shifting mechanism and an oil tank;
the oil way of the pressurizing device is connected with the oil way of the control device and is used for pressurizing the control device;
the oil circuit of the control device is respectively connected with the lubricating and cooling device, the clutch and the oil circuit of the gear shifting mechanism and is used for controlling the lubricating and cooling device, the clutch and the gear shifting mechanism;
the pressurizing device and the control device are arranged in the oil tank;
wherein the pressurizing apparatus includes: two oil filters, a plurality of oil pumps and a plurality of check valves;
the two oil filters include a first oil filter and a second oil filter; one end of a first oil filter is connected with an oil tank, the other end of the first oil filter is connected with a plurality of oil pumps, each oil pump is connected with a one-way valve, the plurality of one-way valves are connected with one end of a second oil filter, and the other end of the second oil filter is connected with an oil path of the control equipment;
the control apparatus includes: the system valve, the lubrication valve, the third one-way valve, the first throttling hole, the system electromagnetic valve, the clutch electromagnetic valve, the hydraulic control reversing valve, the first electromagnetic pressure reducing valve and the second electromagnetic pressure reducing valve;
the pressurizing equipment is connected with the system valve, the third one-way valve, the system electromagnetic valve, the clutch electromagnetic valve, the hydraulic control reversing valve, the first electromagnetic pressure reducing valve and the second electromagnetic pressure reducing valve;
the system valve is also connected with the lubrication valve, the system electromagnetic valve and the oil tank;
the lubrication valve is also connected with the first throttling hole and the oil tank;
the first throttling hole is also connected with the third one-way valve, the lubrication valve and the lubrication cooling device;
the clutch electromagnetic valve is also connected with the hydraulic control reversing valve;
the hydraulic control reversing valve is also connected with the clutch;
the first electromagnetic pressure reducing valve and the second electromagnetic pressure reducing valve are also connected with the gear shifting mechanism;
the gear shifting mechanism comprises a first hydraulic port and a second hydraulic port, wherein the first hydraulic port is connected with the first electromagnetic pressure reducing valve, and the second hydraulic port is connected with the second electromagnetic pressure reducing valve.
2. The hydraulic control apparatus of claim 1, further comprising a fourth check valve;
one end of the fourth one-way valve is connected with the pressurizing device, and the other end of the fourth one-way valve is connected with the first electromagnetic pressure reducing valve.
3. The hydraulic control apparatus according to claim 2, comprising a first pressure sensor connected to the fourth check valve, the first solenoid relief valve, and the second solenoid relief valve.
4. The hydraulic control apparatus of claim 1, further comprising a first accumulator and a second accumulator;
the first energy accumulator is connected with the pressurizing equipment and is arranged between the pressurizing equipment and the fourth one-way valve;
the second energy accumulator is connected with the other end of the fourth one-way valve and is arranged between the fourth one-way valve and the first electromagnetic pressure reducing valve.
5. The hydraulic control apparatus of claim 4, further comprising a relief valve;
the relief valve is disposed between the pressurization device and the first accumulator.
6. The hydraulic control apparatus of claim 1, wherein the shift mechanism further comprises a second pressure sensor and a third pressure sensor;
the second pressure sensor is connected with the first hydraulic port and the first electromagnetic pressure reducing valve;
the third pressure sensor is connected with the second hydraulic port and the second electromagnetic pressure reducing valve.
7. A hydraulic control system comprising a hydraulic control apparatus according to any one of claims 1 to 6.
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| CN201811180579.9A CN108953305B (en) | 2018-10-10 | 2018-10-10 | Hydraulic control device and hydraulic control system |
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| CN201811180579.9A CN108953305B (en) | 2018-10-10 | 2018-10-10 | Hydraulic control device and hydraulic control system |
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| CN113915325B (en) * | 2021-09-28 | 2023-09-12 | 江苏常发农业装备股份有限公司 | Full power gear shifting gearbox hydraulic pressure and lubrication system and gearbox |
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| CN108953305A (en) | 2018-12-07 |
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