CN106184178A - Hydraulic pressure automatic parking system - Google Patents
Hydraulic pressure automatic parking system Download PDFInfo
- Publication number
- CN106184178A CN106184178A CN201610742260.5A CN201610742260A CN106184178A CN 106184178 A CN106184178 A CN 106184178A CN 201610742260 A CN201610742260 A CN 201610742260A CN 106184178 A CN106184178 A CN 106184178A
- Authority
- CN
- China
- Prior art keywords
- parking
- oil
- valve
- direction valve
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/36—Other control devices or valves characterised by definite functions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The present invention relates to hydraulic pressure automatic parking system, for automatically controlling of vehicle parking lever, including parking oil cylinder and two-bit triplet direction valve；This parking oil cylinder is provided with the one-way cylinder of return spring in being, the piston push rod of this parking oil cylinder is hinged with parking lever, and under parking oil cylinder closure state, return spring resets to strain parking operation bar；This two-bit triplet direction valve is respectively connected to driving oil circuit, the oil return circuit of vehicle and the parking oil cylinder of vehicle, and this two-bit triplet direction valve controls parking oil cylinder and is connected to control being turned on and off of parking oil cylinder with drive oil circuit or the oil return circuit of vehicle；It is characterized in that: also include 2/2-way direction valve, this 2/2-way direction valve is installed on the oil return circuit of vehicle, to control the on or off of the oil return circuit of this vehicle；Parking oil cylinder accesses when driving oil circuit, and this 2/2-way direction valve makes oil return circuit end, to play control parking oil cylinder oil return, prevent two-bit triplet direction valve from closing suddenly and cause the effect of vehicle emergency brake.
Description
Technical field
The invention belongs to technical field of vehicle control, particularly relate to a kind of hydraulic pressure automatic parking system.
Background technology
In existing halting mechanism, commonly used is that mechanical, hand-driven controls parking form, when gear level is linked into P gear,
Drag-line pull gearshift assembly to P keep off time, the push rod on parking push-rod assembly or parking lever, then through transmission, will stay
Ratchet in car pawl assembly is pushed in the teeth groove of parking gear, reaches the effect of parking braking after engagement.Cannot be carried out certainly
Dynamicization parking operation.
The utility model of Authorization Notice No. CN 202480875 U discloses a kind of automobile hydraulic control halting mechanism, including automatically
The original oil circuit control of variator, parking gear, park pawl, oil pump, overflow valve, two-bit triplet electromagnetic valve, 2/2-way electromagnetism
Valve, accumulator, pressure transducer, hydraulic cylinder are sequentially connected in series as parking hydraulic control oil circuit；Return spring, hydraulic cylinder it is provided with in hydraulic cylinder
The drive end of piston push rod and park pawl be hinged；The oil inlet pipe of oil pump is connected with fuel tank；The original control of automatic transmission
The working connection end on liquefaction road is connected between two-bit triplet electromagnetic valve and overflow valve.
The halting mechanism of this technical scheme, 2/2-way electromagnetic valve coordinates pressure transducer, to play in control hydraulic cylinder
The effect that oil pressure is constant, two-bit triplet electromagnetic valve plays and controls the effect that oil cylinder is flexible；And in vehicle travel process, if two three
Three-way electromagnetic valve lost efficacy or maloperation, and pressure transducer detects that low pressure triggers 2/2-way electromagnetic valve and opens, i.e. releasable liquid
Hydraulic oil in cylinder pressure, triggers parking action and then causes the problems such as vehicle jerk, and this automobile hydraulic control halting mechanism security performance is low.
Summary of the invention
It is desirable to provide a kind of hydraulic pressure automatic parking system, to solve existing hydraulic pressure automatic parking system security performance
Low problem.
Concrete scheme is as follows: hydraulic pressure automatic parking system, for automatically controlling of vehicle parking lever, including parking oil
Cylinder and two-bit triplet direction valve；This parking oil cylinder is provided with the one-way cylinder of return spring, the piston of this parking oil cylinder in being
Push rod is hinged with parking lever, and under parking oil cylinder closure state, return spring resets to strain parking operation bar；These two
Threeway direction valve is respectively connected to driving oil circuit, the oil return circuit of vehicle and the parking oil cylinder of vehicle, and this two-bit triplet direction
Valve controls parking oil cylinder and is connected to control being turned on and off of parking oil cylinder with drive oil circuit or the oil return circuit of vehicle；Also wrap
Including 2/2-way direction valve, this 2/2-way direction valve is installed on the oil return circuit of vehicle, to control the oil return circuit of this vehicle
On or off；Parking oil cylinder accesses when driving oil circuit, and this 2/2-way direction valve makes oil return circuit end, to play control
Parking oil cylinder oil return, prevent two-bit triplet direction valve from closing suddenly and causing the effect of vehicle emergency brake.
Further: under the original state that described two-bit triplet direction valve is not powered on, the oil return circuit of vehicle and parking oil
Cylinder is conducted；Under the original state that described 2/2-way direction valve is not powered on, oil return circuit turns on；And this two-bit triplet, two
Two lead to direction valve coordinated signals.
Further: the driving oil circuit of described vehicle is also equipped with pressure-gradient control valve, after the working connection of vehicle is by this pressure-gradient control valve
It is communicated to described automatic parking valve block, to guarantee parking system limit priority.
Further: between described pressure-gradient control valve and two-bit triplet direction valve, to be also sequentially connected in series air relief valve and unidirectional
Valve.
Further: also to include trailer valve, this trailer valve is connected with parking oil cylinder, by manually noting at trailer valve
Oil, manually to discharge parking function.
Further: also to include energy-storage system, this energy-storage system includes accumulator and the first pressure transducer；This storage
Can device and two-bit triplet direction valve access the driving oil circuit of vehicle, and the first pressure transducer is conducted with this accumulator with inspection
Survey energy storage pressure value.
Further, the driving oil circuit of described vehicle is also equipped with pressure-gradient control valve, and this hydraulic pressure automatic parking system also includes patrolling
Collect control direction valve；The driving oil circuit of vehicle is by being communicated to described two-bit triplet direction valve after this pressure-gradient control valve, to guarantee parking
System limit priority；Described pressure-gradient control valve is guide electromagnetic valve, and described logic control direction valve is installed on this pressure-gradient control valve
Guide's oil circuit；First pressure transducer controls the opening and closing of logic control direction valve, to realize automatic parking accumulator topping up
The function of automatic shutter.
Further: also to include the second pressure transducer, this second pressure transducer be installed on two-bit triplet direction valve with
Between parking oil cylinder on pipeline, to detect oil pressure pressure in parking oil cylinder.
The present invention is by arranging 2/2-way direction valve on the oil return circuit of parking oil cylinder, and this 2/2-way direction valve exists
Open the when of parking function release, by the pathway disruption of oil return circuit, serve prevent car during advancing at a high speed, two
Position threeway direction valve switches suddenly because of fault, and parking oil cylinder is closed, and causes in the danger that emergency brake is brought the most suddenly；Solve
The problem that existing hydraulic pressure automatic parking system security performance of having determined is low.
Accompanying drawing explanation
Fig. 1 shows hydraulic pressure automatic parking system hydraulic principle figure of the present invention.
Detailed description of the invention
For further illustrating each embodiment, the present invention is provided with accompanying drawing.These accompanying drawings are the invention discloses content one
Point, it is mainly in order to illustrate embodiment, and the associated description of description can be coordinated to explain the operation principles of embodiment.Coordinate ginseng
Examining these contents, those of ordinary skill in the art will be understood that other possible embodiments and advantages of the present invention.In figure
Assembly be not necessarily to scale, and similar element numbers is conventionally used to indicate similar assembly.
In conjunction with the drawings and specific embodiments, the present invention is further described.
Shown in Fig. 1, the automatic parking system of this embodiment includes driving oil circuit 10 and oil return circuit 61,
This driving oil circuit 10 is connected with fuel tank (not shown) by hydraulic pump (not shown), to provide high drive
Hydraulic oil, this oil return circuit 61 is connected with fuel tank (not shown).
It is sequentially connected in series pressure-gradient control valve 1, air relief valve 2 and check valve 3 on this driving oil circuit 10, is then connected in parallel to accumulation of energy
Device 4 and the arrival end of two-bit triplet direction valve 5；The port of export of this two-bit triplet direction valve 5 is also associated with 2/2-way direction
Valve 6, the port of export of this two-bit triplet direction valve 5 is communicated to oil return circuit 61 by this 2/2-way direction valve 6；Meanwhile, this two
The outfan of position threeway direction valve 5, has been sequentially connected in series trailer valve 7 and has driven oil cylinder 8, to form a parking hydraulic control oil circuit.
This parking oil cylinder 8 is provided with the one-way cylinder of return spring in being, the piston push rod of this parking oil cylinder 8 is grasped with parking
Vertical pole (not shown) is hinged, parking oil cylinder 8 non-fluid injection force feed, and under the state of Guan Bi, return spring resets and stays with tension
Car action bars, to realize parking function.
This two-bit triplet direction valve 5 controls the driving oil circuit 10 of parking oil cylinder 8 and vehicle or oil return circuit 61 is connected with
Control being turned on and off of parking oil cylinder 8；This 2/2-way direction valve 6 is mounted on the oil return circuit 61 of vehicle, with control
Make the on or off of the oil return circuit 61 of this vehicle；In this embodiment, parking oil cylinder 8 accesses when driving oil circuit 10, and these are two years old
Position two leads to direction valve 6 and is energized so that oil return circuit 61 ends, when two-bit triplet direction valve 5 cuts out suddenly, parking oil cylinder 8 with return
In oil oil circuit 61 is connected, but 2/2-way direction valve 6 serves blocking-up parking oil cylinder 8, hydraulic oil refluxes, prevents parking oil cylinder 8
Close and cause the effect of vehicle emergency brake.
The driving oil circuit 10 of vehicle is communicated to two-bit triplet direction valve 5, for guaranteeing parking system again by after pressure-gradient control valve 1
Limit priority, the CF mouth of pressure-gradient control valve 1 is used for connecting two-bit triplet direction valve 5, and EF mouth is for other hydraulic component of vehicle
Driving fuel feeding, the pressure oil of LS mouth by controlling logic control opening and closing, is played automatic parking accumulation of energy by 2/2-way direction valve 11
The automatic shutter of device topping up, so that after hydraulic pump works, preferentially guaranteeing that parking function is stable, to improve the manipulation of vehicle further
Safety.
First pressure transducer 41 and accumulator 4 access between check valve 3 and the first reversal valve 5 parallel, and this accumulator 4
Being conducted to form an energy-storage system with the first pressure transducer 41, the first pressure transducer 41 is used for detecting liquid in accumulator 4
The force value of force feed, when in accumulator 4, force value is less than set point, and the first pressure transducer 41 can control 2/2-way direction
Valve 11 cuts out and pump automatically turns on, and is pressurized to normal working value with the pressure by accumulator 4；When force value in accumulator 4
Reaching set point, the first pressure transducer 41 can control 2/2-way direction valve 11 and open and pump is automatically switched off, with accumulation of energy
Device 4 maintains parking oil cylinder 8 operating pressure, to play energy-conservation purpose；In this embodiment, 2/2-way direction valve 11 is as patrolling
Collecting control direction valve, its switch is by the logic control of the first pressure transducer 41, to control guide's oil circuit work of pressure-gradient control valve 1
State, and then to realize the function of the automatic shutter of automatic parking accumulator topping up, reach energy-conservation purpose.
Trailer valve 7 is connected with the oiling end of parking oil cylinder 8, is not provided that pressure at the hydraulic pump driving oil circuit 10, with
And in the case of there is no energy storage in accumulator 4.Can manually pump or oiling chamber etc. be in trailer valve 7 oiling, manually by parking
Function discharges.
In this embodiment, the oil circuit between two-bit triplet direction valve 5 to parking oil cylinder 8 is additionally provided with the second pressure to pass
Sensor 71, to detect oil pressure pressure in parking oil cylinder 8, i.e. whether detection parking function fully opens, this second pressure transducer
71 can do logical judgment by the contrast of respective pressure differential and controller with first sensor 41 thus analyze this automatic parking
Function the most properly functioning.
The hydraulic pressure automatic parking system operation principle of this embodiment is as follows:
Under the original state that described two-bit triplet direction valve 5 is not powered on, the oil return circuit 61 of vehicle is conducted with parking oil cylinder 8,
Under the original state that described 2/2-way direction valve 6 is not powered on, oil return circuit 61 turns on；This two-bit triplet, 2/2-way direction
Valve 5,8 coordinated signals, is controlled to synchronize energising, synchronize power-off by controller, it is ensured that parking oil cylinder 8 accesses and drives oil the most respectively
During road 10, this 2/2-way direction valve 6 makes oil return circuit 61 end, and prevents from controlling parking oil cylinder 8 oil return, preventing two to play
Threeway direction valve 5 cuts out suddenly and causes the effect of vehicle emergency brake.
1. parking release:
When pump motor starts, pump motor can drive hydraulic pump to rotate to start fuel feeding, provides high pressure in making driving oil circuit 10
Hydraulic oil.
Two-bit triplet direction valve 5,2/2-way direction valve 6 obtain electric, drive oil circuit 10 preferential to two three by pressure-gradient control valve 1
Logical direction valve 5 fuel feeding, hydraulic oil first passes through air relief valve 2 and is decompressed to 30+5 bar, is then conducted to two by after check valve 3
Threeway direction valve 5 and accumulator 4, complete the accumulation of energy work of accumulator 4.
Now two-bit triplet direction valve 5 makes driving oil circuit 10 be conducted with parking oil cylinder 8, and hydraulic oil arrives parking oil cylinder 8
And promote the piston push rod of parking oil cylinder 8, to overcome the power of return spring to reset with parking lever, it is achieved releasing of parking function
Put；Now, 2/2-way direction valve 6 makes oil return circuit 61 end, it is ensured that two-bit triplet direction valve 5 failure protection or inefficacy etc.
In the case of, keeping high oil pressure in parking oil cylinder 8, prevent vehicle during advancing at a high speed, two-bit triplet direction valve 5 closes suddenly
Closing, parking oil cylinder 8 decompression is closed suddenly, causes in the danger that emergency brake is brought the most suddenly.
Second pressure transducer 71 is for detecting the pressure of parking oil cylinder 8, and drives oil cylinder 8 oil pressure referring to holding always
Constant-pressure.
Accumulator 4 supplements fuel feeding in driving the faults such as oil circuit 10 leakage, keeps pressure constant.
2. parking is opened:
When car stops, now pump motor has stopped operating, now hydraulic pump fuel cut-off.By described two-bit triplet side
To valve 5,2/2-way direction valve 6 power-off, the oil return circuit 61 of vehicle is conducted with parking oil cylinder 8, and oil return circuit 61 turns on；
In parking oil cylinder 8, hydraulic oil is via flowing to the fuel tank of low pressure after two-bit triplet, 2/2-way direction valve 5,6, at return spring
Under effect, the piston rod of parking oil cylinder 8 resets and strains vehicle parking lever, it is achieved parking function starts, then two three
Logical, 2/2-way direction valve dead electricity resets.
It is understood that control logic according to the different of vehicle control device, threeway, 2/2-way direction valve can have not
Same original state, parking oil cylinder accesses when driving oil circuit, and this 2/2-way direction valve 6 makes oil return circuit 61 end, Ji Keshi
Existing the object of the invention.
Although specifically showing and describe the present invention in conjunction with preferred embodiment, but those skilled in the art should be bright
In vain, in the spirit and scope of the present invention limited without departing from appended claims, in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (8)
1. hydraulic pressure automatic parking system, for automatically controlling of vehicle parking lever, including parking oil cylinder and two-bit triplet
Direction valve；This parking oil cylinder is provided with the one-way cylinder of return spring, the piston push rod of this parking oil cylinder and parking control in being
Bar is hinged, and under parking oil cylinder closure state, return spring resets to strain parking operation bar；This two-bit triplet direction valve is respectively
That accesses vehicle drives oil circuit, the oil return circuit of vehicle and connection parking oil cylinder, and this two-bit triplet direction valve controls parking
Oil cylinder is connected to control being turned on and off of parking oil cylinder with drive oil circuit or the oil return circuit of vehicle；It is characterized in that: also
Including 2/2-way direction valve, this 2/2-way direction valve is installed on the oil return circuit of vehicle, to control the oil return oil of this vehicle
The on or off on road；Parking oil cylinder accesses when driving oil circuit, and this 2/2-way direction valve makes oil return circuit end, to play control
Parking oil cylinder oil return processed, prevent two-bit triplet direction valve from closing suddenly and causing the effect of vehicle emergency brake.
Hydraulic pressure automatic parking system the most according to claim 1, it is characterised in that: described two-bit triplet direction valve is not powered on
Original state under, the oil return circuit of vehicle is conducted with parking oil cylinder；The initial shape that described 2/2-way direction valve is not powered on
Under state, oil return circuit turns on；And this two-bit triplet, 2/2-way direction valve coordinated signals.
Hydraulic pressure automatic parking system the most according to claim 1, it is characterised in that: the driving oil circuit of described vehicle is also installed
Having pressure-gradient control valve, the driving oil circuit of vehicle is by being communicated to described two-bit triplet direction valve after this pressure-gradient control valve, to guarantee parking system
Limit priority.
Hydraulic pressure automatic parking system the most according to claim 3, it is characterised in that: described pressure-gradient control valve and two-bit triplet side
Air relief valve and check valve also it has been sequentially connected in series between valve.
Hydraulic pressure automatic parking system the most according to claim 1, it is characterised in that: also include trailer valve, this trailer valve
It is connected with parking oil cylinder, by the artificial oiling of trailer valve, manually parking function is discharged.
Hydraulic pressure automatic parking system the most according to claim 1, it is characterised in that: also include energy-storage system, this accumulation of energy system
System includes accumulator and the first pressure transducer；This accumulator and two-bit triplet direction valve also access the driving oil of vehicle
Road, and the first pressure transducer and this accumulator be conducted to detect energy storage pressure value.
Hydraulic pressure automatic parking system the most according to claim 6, it is characterised in that: the driving oil circuit of described vehicle is also installed
Having pressure-gradient control valve, this hydraulic pressure automatic parking system also includes logic control direction valve；After the driving oil circuit of vehicle is by this pressure-gradient control valve
It is communicated to described two-bit triplet direction valve, to guarantee parking system limit priority；Described pressure-gradient control valve is guide electromagnetic valve,
Described logic control direction valve is installed on guide's oil circuit of this pressure-gradient control valve；First pressure transducer controls logic control direction valve
Opening and closing, to realize the function of the automatic shutter of automatic parking accumulator topping up.
Hydraulic pressure automatic parking system the most according to claim 1, it is characterised in that: also include the second pressure transducer, should
Second pressure transducer is installed between two-bit triplet direction valve and parking oil cylinder on pipeline, to detect oil pressure pressure in parking oil cylinder
Power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742260.5A CN106184178A (en) | 2016-08-26 | 2016-08-26 | Hydraulic pressure automatic parking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742260.5A CN106184178A (en) | 2016-08-26 | 2016-08-26 | Hydraulic pressure automatic parking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106184178A true CN106184178A (en) | 2016-12-07 |
Family
ID=57527130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610742260.5A Pending CN106184178A (en) | 2016-08-26 | 2016-08-26 | Hydraulic pressure automatic parking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106184178A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032854A (en) * | 2017-12-12 | 2018-05-15 | 航天重型工程装备有限公司 | A kind of dual-purpose parking valve group of No leakage electric mechanical |
| CN111163985A (en) * | 2017-10-07 | 2020-05-15 | 威伯科有限公司 | Parking brake valve device |
| CN112238852A (en) * | 2019-07-17 | 2021-01-19 | 丰田自动车株式会社 | Brake exhaust device |
| CN113944709A (en) * | 2021-11-02 | 2022-01-18 | 湖北三江航天万山特种车辆有限公司 | Parking brake system and vehicle |
| CN114017499A (en) * | 2021-11-01 | 2022-02-08 | 中国第一汽车股份有限公司 | Automatic transmission hydraulic system, vehicle and hydraulic system control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201857568U (en) * | 2010-07-06 | 2011-06-08 | 广西柳工机械股份有限公司 | Device for conventional running control of milling machine and emergency control of trailer |
| CN102120447A (en) * | 2011-03-04 | 2011-07-13 | 安徽合力股份有限公司 | Forklift hydraulic system matched with multi-functional wet brakes |
| CN102602385A (en) * | 2012-03-27 | 2012-07-25 | 三一集团有限公司 | Parking braking system and engineering machinery |
| CN203383262U (en) * | 2013-08-08 | 2014-01-08 | 辽宁海龙重工股份有限公司 | Pilot control device of prefill valve of steel grasping machine |
| CN204567751U (en) * | 2015-05-08 | 2015-08-19 | 山东黄金矿业(莱州)有限公司三山岛金矿 | The integrated hydraulic system that a kind of Underground Mine truck operation turns to and brakes |
| CN204736839U (en) * | 2015-05-12 | 2015-11-04 | 徐工集团工程机械股份有限公司 | Underground scraper brakies hydraulic system |
| CN205930701U (en) * | 2016-08-26 | 2017-02-08 | 林德（中国）叉车有限公司 | Automatic parking system of hydraulic pressure |
-
2016
- 2016-08-26 CN CN201610742260.5A patent/CN106184178A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201857568U (en) * | 2010-07-06 | 2011-06-08 | 广西柳工机械股份有限公司 | Device for conventional running control of milling machine and emergency control of trailer |
| CN102120447A (en) * | 2011-03-04 | 2011-07-13 | 安徽合力股份有限公司 | Forklift hydraulic system matched with multi-functional wet brakes |
| CN102602385A (en) * | 2012-03-27 | 2012-07-25 | 三一集团有限公司 | Parking braking system and engineering machinery |
| CN203383262U (en) * | 2013-08-08 | 2014-01-08 | 辽宁海龙重工股份有限公司 | Pilot control device of prefill valve of steel grasping machine |
| CN204567751U (en) * | 2015-05-08 | 2015-08-19 | 山东黄金矿业(莱州)有限公司三山岛金矿 | The integrated hydraulic system that a kind of Underground Mine truck operation turns to and brakes |
| CN204736839U (en) * | 2015-05-12 | 2015-11-04 | 徐工集团工程机械股份有限公司 | Underground scraper brakies hydraulic system |
| CN205930701U (en) * | 2016-08-26 | 2017-02-08 | 林德（中国）叉车有限公司 | Automatic parking system of hydraulic pressure |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111163985A (en) * | 2017-10-07 | 2020-05-15 | 威伯科有限公司 | Parking brake valve device |
| CN111163985B (en) * | 2017-10-07 | 2022-07-12 | 威伯科有限公司 | Parking brake valve device |
| CN108032854A (en) * | 2017-12-12 | 2018-05-15 | 航天重型工程装备有限公司 | A kind of dual-purpose parking valve group of No leakage electric mechanical |
| CN112238852A (en) * | 2019-07-17 | 2021-01-19 | 丰田自动车株式会社 | Brake exhaust device |
| CN114017499A (en) * | 2021-11-01 | 2022-02-08 | 中国第一汽车股份有限公司 | Automatic transmission hydraulic system, vehicle and hydraulic system control method |
| CN114017499B (en) * | 2021-11-01 | 2022-12-13 | 中国第一汽车股份有限公司 | Automatic transmission hydraulic system, vehicle and hydraulic system control method |
| CN113944709A (en) * | 2021-11-02 | 2022-01-18 | 湖北三江航天万山特种车辆有限公司 | Parking brake system and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106184178A (en) | Hydraulic pressure automatic parking system | |
| CN103925361B (en) | The parking lock device of variator | |
| CN105003715B (en) | It is a kind of that there is the emergent electro-hydraulic drive system of gate valve and gate valve for closing valve function | |
| CN105257889A (en) | Electro-hydraulic driving system for sluice valve and sluice valve | |
| CN106051145A (en) | Vehicle door opening walking forbidding system | |
| CN102897211B (en) | Hydraulic power-assisted steering system and chassis of engineering vehicle | |
| CN204828870U (en) | Gate valve electricity liquid actuating system and gate valve with emergent valve function of closing | |
| CN105000008A (en) | Active tram hydraulic braking system with high speed switch valve | |
| CN205930701U (en) | Automatic parking system of hydraulic pressure | |
| CN106167010B (en) | A kind of parking brake control unit with long-range mitigation capability | |
| CN106379302B (en) | Vehicle hydraulic active braking system and control method thereof | |
| CN202629054U (en) | Hydraulic clutch control device | |
| CN201753040U (en) | Packing case lifting safety control device | |
| CN201858082U (en) | Wind power generation hydraulic system | |
| CN107605833A (en) | A kind of clamper hydraulic means | |
| CN2831370Y (en) | Permanent-magnet locking hydraulic operation gear of ultrahigh voltage circuit breaker | |
| CN105236051B (en) | Controlling device for doors is switched for the self-dumping garbage truck of double swing doors | |
| CN204784959U (en) | Gate valve electricity liquid actuating system and gate valve | |
| CN203559443U (en) | Land leveler parking hydraulic automatic brake system | |
| CN201952155U (en) | Mine winch preventing from magnifying slip | |
| CN102674192B (en) | Mining high-speed slippage preventive winch | |
| CN202911728U (en) | Safe hydraulic brake system for parking brake | |
| CN201827172U (en) | Supercharging latching hydraulic buffer system | |
| CN110873096B (en) | Main well hydraulic station redundant loop transformation system | |
| CN107472229A (en) | Loading machine electric control parking braking control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |
|
| RJ01 | Rejection of invention patent application after publication |