CN105346595B - Steering - Google Patents
Steering Download PDFInfo
- Publication number
- CN105346595B CN105346595B CN201510881505.8A CN201510881505A CN105346595B CN 105346595 B CN105346595 B CN 105346595B CN 201510881505 A CN201510881505 A CN 201510881505A CN 105346595 B CN105346595 B CN 105346595B
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- Prior art keywords
- steering
- magnetic valve
- hydraulic
- valve
- pressurized tank
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/30—Safety devices, e.g. alternate emergency power supply or transmission means to ensure steering upon failure of the primary steering means
Abstract
The invention discloses a kind of steering, including：Hydraulic pressure oil tank；Hydraulic steering pump, the oil inlet of hydraulic steering pump are connected with the oil-out of hydraulic pressure oil tank；Flow sensor, flow sensor are connected with hydraulic steering pump；First fuel feeding branch road, the first fuel feeding branch road include the first magnetic valve, and the first magnetic valve is connected with flow sensor；Second fuel feeding branch road, the second fuel feeding branch road include pressurized tank and second solenoid valve, and pressurized tank is connected between flow sensor and second solenoid valve；Steering gear, steering gear are connected with the first magnetic valve and second solenoid valve, and hydraulic oil enters steering gear through the first magnetic valve and second solenoid valve, and the oil-out of steering gear is connected with hydraulic pressure oil tank；Steering wheel, steering wheel are connected with steering gear；Angular transducer, angular transducer are connected with steering wheel；Control device, control device and the first magnetic valve, second solenoid valve and angular transducer communication connection.The present invention avoids the safety problem caused by steering wheel loses power-assisted.
Description
Technical field
The present invention relates to automotive field, more particularly to a kind of steering.
Background technology
As shown in figure 1, in the prior art, the operation principle of the steering of vehicle is：Low pressure liquid in hydraulic pressure oil tank 101
Force feed enters hydraulic steering pump 102, and after hydraulic steering pump 102 works, hydraulic steering pump 102 provides high pressure to steering gear 103
Hydraulic oil, provide power steering by steering gear 104 and steering gear 103 is completed after doing work to steering wheel 105, hydraulic oil
Circulation work in hydraulic pressure oil tank 101 is returned to, it is final to realize the power-assisted demand for meeting steering wheel 105 in real time.
But after hydraulic steering pump 102 fails, steering can be stopped, and steering wheel 105 loses power-assisted, turn to
Disk 105 can not rotate, and vehicle loses direction controlling, cause vehicle very big safety problem to be present.
The information for being disclosed in the background section is merely intended to understanding of the increase to the general background of the present invention, without answering
It has been the prior art well known to persons skilled in the art when being considered as recognizing or implying the information structure in any form.
The content of the invention
It is an object of the invention to provide a kind of steering, is not turned to so as to overcome in the steering of prior art
Pump fail safe measure, vehicle is caused the defects of very big safety problem to be present.
To achieve the above object, the invention provides a kind of steering, including：Hydraulic pressure oil tank；Hydraulic steering pump, hydraulic pressure
The oil inlet of steering pump is connected with the oil-out of hydraulic pressure oil tank；Flow sensor, flow sensor are connected with hydraulic steering pump；The
One fuel feeding branch road, the first fuel feeding branch road include the first magnetic valve, and the first magnetic valve is connected with flow sensor；Second fuel feeding branch
Road, the second fuel feeding branch road include pressurized tank and second solenoid valve, and pressurized tank is connected between flow sensor and second solenoid valve；
Steering gear, steering gear are connected with the first magnetic valve and second solenoid valve, and hydraulic oil enters through the first magnetic valve and second solenoid valve
Steering gear, the oil-out of steering gear are connected with hydraulic pressure oil tank；Steering wheel, steering wheel are connected with steering gear；Angular transducer, angle
Sensor is connected with steering wheel；Control device, control device communicate with the first magnetic valve, second solenoid valve and angular transducer
Connection.
Preferably, in above-mentioned technical proposal, the normally opened hand-operated valve of sandwiched between second solenoid valve and steering gear.
Preferably, in above-mentioned technical proposal, the 3rd normally closed magnetic valve of sandwiched, pressurized tank between pressurized tank and hydraulic pressure oil tank
Upper connection pressure sensor, the 3rd magnetic valve and pressure sensor communicate to connect with control device；Pressure in pressurized tank exceedes
During scheduled pressure value, the 3rd magnetic valve is opened, and the hydraulic oil in pressurized tank flows back to hydraulic oil tank by the 3rd magnetic valve.
Preferably, in above-mentioned technical proposal, voltage-stablizer is provided between pressurized tank and second solenoid valve.
Preferably, in above-mentioned technical proposal, pressure-reducing valve is provided between pressurized tank and the 3rd magnetic valve.
Preferably, in above-mentioned technical proposal, flow sensor before pressurized tank with being provided with the 4th magnetic valve, the 4th magnetic valve
Communicated to connect with control device.
Preferably, in above-mentioned technical proposal, check valve is provided between pressurized tank and the 4th magnetic valve.
Compared with prior art, the present invention has the advantages that：
The steering of the present invention provides fail safe oil circuit for hydraulic steering pump, and the fail safe oil circuit is also set
Manual protection is put, it is ensured that steering wheel obtains real-time power-assisted, avoids the safety problem caused by steering wheel loses power-assisted.
Brief description of the drawings
Fig. 1 is the structural representation of the steering of prior art.
Fig. 2 is the structural representation according to the steering of the present invention.
Main Reference Numerals explanation：
The magnetic valves of 1- the 3rd, 2- magnetic valves and sensor wire harness, 3- hydraulic oil pipelines, 4- hydraulic pressure oil tanks, 5- fluid-link steerings
Pump, 6- flow sensors, 7- control devices, the magnetic valves of 8- first, 9- check valves, 10- pressurized tanks, 11- pressure-reducing valves, 12- pressure
Sensor, 13- voltage-stablizers, 14- second solenoid valves, 15- hand-operated valves, 16- steering gears, 17- steering gears, 18- steering wheels,
19- angular transducers, the magnetic valves of 20- the 4th, 101- hydraulic pressure oil tanks, 102- hydraulic steering pumps, 103- steering gears, 104-, which is turned to, to be passed
Motivation structure, 105- steering wheels.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other members
Part or other parts.
As shown in Fig. 2 according to the steering of the specific embodiment of the invention include the total road of fuel feeding, the first fuel feeding branch road,
Second fuel feeding branch road and control device 7.
As shown in Fig. 2 the total road of fuel feeding include be sequentially connected hydraulic pressure oil tank 4, hydraulic steering pump 5, flow sensor 6 and
The steering gear 16 that is sequentially connected, steering gear 17, steering wheel 18, angular transducer 19, the oil-out and liquid of steering gear 16
Force feed tank 4 connects.First fuel feeding branch road and the second fuel feeding branch circuit parallel connection are arranged between flow sensor 6 and steering gear 16.Angle
Degree sensor 19 is used to detect whether steering wheel 18 has power-assisted demand.
First fuel feeding branch road includes the first normally closed magnetic valve 8, and it is connected between flow sensor 6 and steering gear 16.
Second fuel feeding branch road include be sequentially connected the 4th magnetic valve 20, check valve 9, pressurized tank 10, voltage-stablizer 13, second solenoid valve 14
And normally opened hand-operated valve 15, the 4th magnetic valve 20 are connected with flow sensor 6, hand-operated valve 15 is connected with steering gear 16.
As shown in Fig. 2 being connected with pressure sensor 12 on pressurized tank 10, set successively between pressurized tank 10 and hydraulic pressure oil tank 4
There are pressure-reducing valve 11 and the 3rd normally closed magnetic valve 1.Control device 7 and flow sensor 6, the first magnetic valve 8, second solenoid valve
14th, the 3rd magnetic valve 1, the 4th magnetic valve 20, angular transducer 19 and pressure sensor 12 communicate to connect.
The operation principle of the steering is as follows：
To the oiling of pressurized tank 10：After vehicle key switch is powered, the hydraulic oil in hydraulic steering pump 5 is provided only to pressurized tank
10, until the oil pressure in pressurized tank 10 reaches maximum preselected pressure.If the oil pressure of pressurized tank 10 is also not up to maximum predetermined
Pressure value, but angular transducer 19 detects that steering wheel 18 has power-assisted demand, then and the 4th magnetic valve 20 is closed, closing presure tank
Hydraulic oil supplies, and is then turned on the oil circuit supply of steering gear, power-assisted is provided for steering wheel 18.The power-assisted demand of steering wheel 18 terminates
Afterwards, continue to the pressurization of pressurized tank 10 until oil pressure reaches maximum preselected pressure.
The pressure release of pressurized tank 10：When pressure sensor 12 detects that the pressure of pressurized tank 10 exceedes maximum preselected pressure
When, control device 7 opens the 3rd magnetic valve 1, and the hydraulic oil in pressurized tank 10 is discharged into hydraulic pressure oil tank 4 after pressure-reducing valve 11,
Until the pressure of pressurized tank 10 reaches maximum preselected pressure, this timed unit 7 closes the 3rd magnetic valve 1, maintains pressurized tank
10 pressure.
The normal operating conditions of hydraulic steering pump 5：Angular transducer 19 detects that steering wheel 18 has power-assisted demand, control device
7 close second solenoid valves 14, open the first magnetic valve 8, and the hydraulic oil in hydraulic pressure oil tank 4 enters hydraulic steering pump 5, after pressurization
Hydraulic oil is done work into steering gear 16, and the mechanical energy of steering gear 16 is passed into steering gear 17, and then is passed to and turned
Realize that power-assisted, hydraulic oil return to hydraulic pressure oil tank 4 after being done work by steering gear 16 to disk 18.
The failure state of hydraulic steering pump 5：Flow sensor 6 detects piping flow exception, judges that hydraulic steering pump 5 loses
Imitate, then flow sensor 6 sends the signal to control device 7, and control device 7 closes the first magnetic valve 8.Work as angle sensor
When device 19 detects that steering wheel 18 needs power-assisted, control device 7 open second solenoid valve 14, due to hand-operated valve 15 be it is normally opened,
Therefore the hydraulic oil in pressurized tank 10 is done work by voltage-stablizer 13 into steering gear 16, and the mechanical energy of steering gear 16 is passed to
Steering gear 17, and then pass to steering wheel 18 and realize that power-assisted, hydraulic oil return to hydraulic oil after being done work by steering gear 16
Tank 4.When angular transducer 19 detects that steering wheel 18 does not need power-assisted, control device 7 closes second solenoid valve 14.So follow
Ring, control device 7 provide power-assisted to steering wheel 18 in real time according to the signal instruction of angular transducer 19.Pressure in pressurized tank 10
When power is close to minimum predetermined pressure value, control device 7 sends alarm, reminds vehicle driver.
The failure state of second solenoid valve 14：When the failure of second solenoid valve 14 can not close, by manually closing hand-operated valve
15, prevent in 5 normal work of hydraulic steering pump, hydraulic oil enters jointly from the first fuel feeding branch road and the second fuel feeding branch road to be turned to
Device 16, influence to the power-assisted effect of steering wheel 18 or power-assisted can not be carried out to steering wheel 18.
The steering of the present invention provides fail safe oil circuit for hydraulic steering pump, and the fail safe oil circuit is also set
Manual protection is put, it is ensured that steering wheel obtains real-time power-assisted, avoids the safety problem caused by steering wheel loses power-assisted.
The description of the foregoing specific illustrative embodiment to the present invention is to illustrate and the purpose of illustration.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explain that the certain principles of the present invention and its reality should
With so that those skilled in the art can realize and utilize the present invention a variety of exemplaries and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (6)
- A kind of 1. steering, it is characterised in that including：Hydraulic pressure oil tank；Hydraulic steering pump, the oil inlet of the hydraulic steering pump are connected with the oil-out of the hydraulic pressure oil tank；Flow sensor, the flow sensor are connected with the hydraulic steering pump；First fuel feeding branch road, the first fuel feeding branch road include the first magnetic valve, first magnetic valve and the flow sensing Device connects；Second fuel feeding branch road, the second fuel feeding branch road include pressurized tank and second solenoid valve, and the pressurized tank is connected to described Between flow sensor and the second solenoid valve；Steering gear, the steering gear are connected with first magnetic valve and the second solenoid valve, and hydraulic oil is through the described first electricity Magnet valve and the second solenoid valve enter the steering gear, and the oil-out of the steering gear is connected with the hydraulic pressure oil tank；Steering wheel, the steering wheel are connected with the steering gear；Angular transducer, the angular transducer are connected with the steering wheel；AndControl device, the control device lead to first magnetic valve, the second solenoid valve and the angular transducer Letter connection；The 3rd normally closed magnetic valve of sandwiched between the pressurized tank and the hydraulic pressure oil tank, pressure is connected on the pressurized tank Sensor, the 3rd magnetic valve and the pressure sensor communicate to connect with the control device；Pressure in the pressurized tank When power exceedes scheduled pressure value, the 3rd magnetic valve is opened, and the hydraulic oil in the pressurized tank passes through the 3rd magnetic valve Flow back to the hydraulic pressure oil tank.
- 2. steering according to claim 1, it is characterised in that pressed from both sides between the second solenoid valve and the steering gear If normally opened hand-operated valve.
- 3. steering according to claim 1, it is characterised in that set between the pressurized tank and the second solenoid valve There is voltage-stablizer.
- 4. steering according to claim 1, it is characterised in that set between the pressurized tank and the 3rd magnetic valve There is pressure-reducing valve.
- 5. steering according to claim 1, it is characterised in that the flow sensor before the pressurized tank with setting There is the 4th magnetic valve, the 4th magnetic valve communicates to connect with the control device.
- 6. steering according to claim 5, it is characterised in that set between the pressurized tank and the 4th magnetic valve There is check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881505.8A CN105346595B (en) | 2015-12-04 | 2015-12-04 | Steering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881505.8A CN105346595B (en) | 2015-12-04 | 2015-12-04 | Steering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105346595A CN105346595A (en) | 2016-02-24 |
| CN105346595B true CN105346595B (en) | 2018-01-30 |
Family
ID=55322713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510881505.8A Active CN105346595B (en) | 2015-12-04 | 2015-12-04 | Steering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105346595B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111776066A (en) * | 2020-07-30 | 2020-10-16 | 三一汽车起重机械有限公司 | Energy storage emergency steering module, hydraulic steering system and control method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8397858B2 (en) * | 2010-06-04 | 2013-03-19 | Eaton Corporation | Hydro-mechanical steering unit with integrated emergency steering capability |
| CN102700603B (en) * | 2012-05-31 | 2013-12-25 | 陕西秦川机械发展股份有限公司 | Emergency two-circuit power steering system |
| CN203651883U (en) * | 2013-10-28 | 2014-06-18 | 龙工(上海)机械制造有限公司 | Wheel-type loader hydraulic system with emergency steering function |
| CN203753231U (en) * | 2014-03-07 | 2014-08-06 | 山东蓬翔汽车有限公司 | Semi-integrated steering system having emergency steering function |
| CN204605931U (en) * | 2015-03-04 | 2015-09-02 | 淮安信息职业技术学院 | A kind of emergent electrobus electric hydraulic power-assisted steering system |
| CN205131363U (en) * | 2015-12-04 | 2016-04-06 | 广西玉柴机器股份有限公司 | Steering system |
-
2015
- 2015-12-04 CN CN201510881505.8A patent/CN105346595B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105346595A (en) | 2016-02-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220913 Address after: No. 9, Keyuan East 11th Road, High-tech Zone, Nanning City, Guangxi Zhuang Autonomous Region, 530009 Patentee after: Yuchaixinlan New Energy Power Technology Co.,Ltd. Address before: 537005 No. 88 flyover West Road, the Guangxi Zhuang Autonomous Region, Yulin Patentee before: Guangxi Yuchai Machinery Co.,Ltd. |
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| TR01 | Transfer of patent right |