CN115285217A - Emergency steering power device of commercial vehicle and commercial vehicle - Google Patents
Emergency steering power device of commercial vehicle and commercial vehicle Download PDFInfo
- Publication number
- CN115285217A CN115285217A CN202211086230.5A CN202211086230A CN115285217A CN 115285217 A CN115285217 A CN 115285217A CN 202211086230 A CN202211086230 A CN 202211086230A CN 115285217 A CN115285217 A CN 115285217A
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- 230000035939 shock Effects 0.000 claims description 11
- 230000000694 effects Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The invention belongs to the technical field of emergency steering control of commercial vehicles, and discloses an emergency steering power device of a commercial vehicle and the commercial vehicle. The emergency steering power device of the commercial vehicle comprises a driving mechanism, an emergency valve and an emergency pump, wherein a shell of the driving mechanism is fixedly arranged on a vehicle body; the emergency valve is fixedly arranged on the shell, a first oil duct is arranged in the emergency valve, and two ends of the first oil duct are respectively communicated with the outlet of the main oil pump and the power steering gear; the emergency valve is configured to transmit power steering oil at an outlet of the main oil pump to the power steering gear to complete the steering assist; the power input end of the emergency pump is connected with the power output end of the driving mechanism, a second oil duct is arranged in the emergency pump and communicated with the first oil duct, and the driving mechanism can drive the emergency pump to work so that the emergency pump can provide power steering oil for the power steering gear to complete emergency steering assistance. The emergency valve has the advantages that the distance between the emergency valve and the emergency pump is shortened, the structure is simple, and the space arrangement difficulty is reduced.
Description
Technical Field
The invention relates to the technical field of emergency steering control of commercial vehicles, in particular to an emergency steering power device of a commercial vehicle and the commercial vehicle.
Background
A double-front-axle steering system of a commercial vehicle usually adopts an emergency steering pump as an emergency steering power source in order to meet the requirements of corresponding regulatory standards. When the power source is applied to the emergency steering system, two assemblies of an emergency steering valve and a power steering oil tank need to be added, a fixed assembly support and two sets of oil tank connecting pipelines are matched at the same time, the emergency steering valve, the oil tank and the emergency steering pump connecting pipeline are respectively one set, the motor needs to work at a low rotating speed, the system structure is complex, and the problems of oil leakage points increase, cost increase, difficulty in overall vehicle space arrangement, ineffective energy loss and the like exist.
Disclosure of Invention
The invention aims to provide an emergency steering power device of a commercial vehicle and the commercial vehicle, and aims to solve the problems of complex structure and difficult spatial arrangement of the emergency steering device.
In order to achieve the purpose, the invention adopts the following technical scheme:
emergent steering power device of commercial car includes:
the shell of the driving mechanism is fixedly arranged on the vehicle body;
the emergency valve is fixedly arranged on the shell, a first oil duct is arranged in the emergency valve, and two ends of the first oil duct are respectively communicated with an outlet of the main oil pump and the power steering gear; the emergency valve is configured to transmit power steering oil at an outlet of the main oil pump to the power steering gear to accomplish steering assist;
the emergency pump, the power input end of emergency pump is connected actuating mechanism's power take off end, be equipped with the second oil duct in the emergency pump, the second oil duct with first oil duct intercommunication sets up, actuating mechanism can drive emergency pump work makes the emergency pump to the power steering ware provides power steering oil is in order to accomplish emergency steering helping hand.
Optionally, the emergency valve is disposed at an end of the housing facing the emergency pump and is fixedly connected to the emergency pump through a connecting member.
Optionally, the drive mechanism is a dc drive motor.
Optionally, a plurality of mounting studs are arranged on the casing of the driving mechanism, the mounting studs are connected to the vehicle body longitudinal beam, each mounting stud is provided with a shock pad, and two ends of each shock pad respectively abut against the casing and the vehicle body longitudinal beam.
Optionally, one end of the second oil passage, which is away from the first oil passage, is a second oil inlet, and the second oil inlet is communicated with the power steering oil tank.
Optionally, the first oil passage is provided with a flow detector, and when the detected flow of the flow detector is smaller than a set threshold, the driving mechanism starts to drive the emergency pump to work.
Optionally, the driving mechanism is provided with a motor power interface and a signal interface, the motor power interface is connected with a power supply of the whole vehicle, and the signal interface is connected with a signal line of the whole vehicle.
Optionally, when the main oil pump works normally, the power steering oil enters the power steering gear through the first oil passage to complete the steering assistance; when the main oil pump fails, the driving mechanism starts and drives the emergency pump to work, and the power steering oil enters the first oil duct through the second oil duct and then enters the power steering gear to complete emergency steering power assistance.
Commercial car, including any preceding scheme commercial car emergency steering power device, commercial car emergency steering power device fixed mounting is on the automobile body longeron.
Optionally, the commercial vehicle further comprises a support, the support is of an L shape, one end of the support is connected to the commercial vehicle emergency steering power device, and the other end of the support is connected to the vehicle body longitudinal beam.
The invention has the beneficial effects that:
according to the emergency steering power device for the commercial vehicle, the emergency valve is fixedly arranged on the shell of the driving mechanism, so that the distance between the emergency valve and the emergency pump is favorably shortened, the connecting pipeline is reduced, the structure is simple, the required arrangement space is greatly reduced, the space arrangement difficulty is reduced, the steering power efficiency is conveniently improved, and the steering power effect is improved.
The commercial vehicle adopts the emergency steering power device of the commercial vehicle, has simple structure, is convenient for spatial arrangement on the whole vehicle, and is beneficial to reducing the steering power-assisted cost and improving the steering power-assisted efficiency.
Drawings
FIG. 1 is a schematic structural diagram of an emergency power steering device of a commercial vehicle according to the present invention;
fig. 2 is a schematic view of the mounting structure of the emergency steering device of the commercial vehicle on a vehicle body longitudinal beam.
In the figure:
1. a drive mechanism; 11. a housing; 12. a heat dissipation mechanism; 13. mounting a stud; 14. a shock pad; 15. a motor power interface; 16. a signal interface; 2. an emergency valve; 21. a first oil inlet; 22. an oil outlet; 3. an emergency pump; 31. a second oil inlet; 4. a flow rate detector; 5. a connecting member; 6. a vehicle body longitudinal beam; 7. and (3) a bracket.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used based on the orientations or positional relationships shown in the drawings for convenience of description and simplicity of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The invention provides an emergency steering power device of a commercial vehicle, which comprises a driving mechanism 1, an emergency valve 2 and an emergency pump 3, wherein a shell 11 of the driving mechanism 1 is fixedly arranged on a vehicle body; the emergency valve 2 is fixedly arranged on the shell 11, a first oil duct is arranged in the emergency valve 2, and two ends of the first oil duct are respectively communicated with an outlet of the main oil pump and the power steering gear; the emergency valve 2 is configured to transmit power steering oil of an outlet of the main oil pump to the power steering gear to complete steering assist; the power input end of the emergency pump 3 is connected with the power output end of the driving mechanism 1, a second oil duct is arranged in the emergency pump 3 and communicated with the first oil duct, and the driving mechanism 1 can drive the emergency pump 3 to work so that the emergency pump 3 can provide power steering oil for the power steering gear to complete emergency steering power assistance.
As shown in fig. 1, a first oil inlet 21 and an oil outlet 22 are arranged at two ends of a first oil passage of the emergency valve 2, the first oil inlet 21 is connected with an outlet of the main oil pump, the oil outlet 22 is connected with the power steering gear, and the first oil inlet 21 and the first oil outlet 22 are respectively arranged at two sides of the driving mechanism 1. The emergency pump 3 is provided with a second oil inlet 31, and the second oil passage is communicated with the second oil inlet 31 and the first oil passage, so that the second oil inlet 31 can provide steering power oil for the oil outlet 22 on the first oil passage through the second oil passage. According to the emergency steering power device for the commercial vehicle, the emergency valve 2 is fixedly arranged on the shell 11 of the driving mechanism 1, so that the distance between the emergency valve 2 and the emergency pump 3 is favorably shortened, the connecting pipeline is reduced, the structure is simple, the required arrangement space is greatly reduced, the space arrangement difficulty is reduced, the steering power-assisted efficiency is conveniently improved, and the steering power-assisted effect is improved.
Optionally, the emergency valve 2 is arranged at the end of the housing 11 facing the emergency pump 3 and is connected to the emergency pump 3 by a connecting piece 5.
As shown in fig. 1, the emergency valve 2 is installed near the output end of the driving mechanism 1, and the emergency valve 2 and the emergency pump 3 are fixedly connected through a connecting piece 5 and make the first oil passage and the second oil passage communicate with each other. Preferably, the connecting piece 5 is a sealing flange, and the connecting piece 5 is connected to the emergency valve 2 around the circumference of the second oil channel, so that the first oil channel and the second oil channel are in sealing connection. It can be seen that the emergency valve 2 and the emergency pump 3 are directly connected and communicated, so that the oil pipe is prevented from being arranged between the emergency valve and the emergency pump, the using quantity of the whole oil pipe is reduced, oil leakage points are reduced, the installation space is greatly reduced, the integration effect is good, and the whole assembly and disassembly are convenient to realize.
Alternatively, the drive mechanism 1 is a dc drive motor.
In some embodiments, the driving mechanism 1 is a 24V dc motor, and the other end of the driving mechanism 1 opposite to the emergency pump 3 is provided with a heat dissipation mechanism 12 to ensure the normal heat dissipation and operation of the driving mechanism 1. The direct current motor can instantly increase the rotating speed to a set value (such as 4000 r/min), and the emergency steering power-assisted driving is favorably realized.
Optionally, a plurality of mounting studs 13 are arranged on the housing 11 of the driving mechanism 1, the mounting studs 13 are connected to the vehicle body longitudinal beam 6, a shock pad 14 is arranged on each mounting stud 13, and two ends of the shock pad 14 respectively abut against the housing 11 and the vehicle body longitudinal beam 6.
As shown in fig. 1 and 2, when the housing 11 is connected to the vehicle body side member 6, the plurality of mounting studs 13 are provided, which is advantageous for improving the assembling performance of the driving mechanism 1 and realizing the detachable connection of the driving mechanism 1 and the vehicle body side member 6. The shock absorption pad 14 is sleeved on the mounting stud 13, so that the shock interference to the driving mechanism 1 in the running process of the whole vehicle is reduced, the shell 11 of the driving mechanism 1 is protected, and the service life is prolonged.
Optionally, one end of the second oil passage facing away from the first oil passage is a second oil inlet 31, and the second oil inlet 31 is communicated with the power steering oil tank.
According to the emergency steering system, the first oil passage and the second oil passage are arranged, two oil inlets are actually provided for the supply of the steering power oil, when the main oil pump fails, the first oil inlet 21 has no oil inlet, the emergency pump 3 is rapidly started under the driving of the driving mechanism 1 and provides the steering power oil through the second oil inlet 31, the emergency steering assistance is ensured, and the steering reliability is improved. Because the emergency pump 3 is directly connected with the emergency valve 2, the steering power oil of the second oil channel can quickly reach the emergency valve 2 to realize emergency steering assistance.
Alternatively, the first oil passage is provided with a flow detector 4, and when the detected flow of the flow detector 4 is smaller than a set threshold value, the driving mechanism 1 starts to drive the emergency pump 3 to operate.
The flow detector 4 adopts a flow sensor and is used for detecting the flow in the first oil duct, when the main oil pump fails, the first oil inlet 21 has no oil inlet, the detection flow of the flow detector 4 is smaller than a set threshold value, at the moment, the driving mechanism 1 is started and drives the emergency pump 3 to work, and the steering assisting oil is provided through the second oil duct. The flow detector 4 is arranged and connected into the vehicle control unit, so that the automatic control of the steering power is convenient to realize.
Optionally, the driving mechanism 1 is provided with a motor power interface 15 and a signal interface 16, the motor power interface 15 is connected with a vehicle power supply, and the signal interface 16 is connected with a vehicle signal line.
As shown in fig. 1, the motor power interface 15 is connected to the vehicle power supply for ensuring that the driving mechanism 1 operates with a driving voltage. The signal interface 16 is connected with a vehicle signal line, and the vehicle signal line is connected with a vehicle controller, so that the vehicle controller can conveniently start and stop the work of the driving mechanism 1, the driving mechanism 1 can be conveniently started in the moment that the main oil pump fails to work to realize emergency steering power assistance, and the driving safety is ensured.
Alternatively, when the main oil pump works normally, the power steering oil enters the power steering gear through the first oil passage to complete the steering assistance; when the main oil pump fails, the driving mechanism 1 is started and drives the emergency pump 3 to work, and the power steering oil enters the first oil duct through the second oil duct and then enters the power steering gear to complete emergency steering power assistance.
It can be understood that the emergency valve 2 is used for realizing the conventional steering assistance of the vehicle, and when the main oil pump fails and can not provide the steering assistance oil, the vehicle controller controls the driving mechanism 1 to start and drive the emergency pump 3 to provide the steering assistance oil, so that the normal steering assistance is ensured. Because the second oil duct of the emergency pump 3 is communicated with the first oil duct of the emergency valve 2, the steering assisting oil in the power steering oil tank can be supplied to the emergency valve 2 in the shortest route and time to realize steering assisting, and the steering assisting efficiency is greatly improved. The flow detector 4 is connected to the vehicle control unit, so that the automatic control of the steering power is realized, and the safety and reliability are greatly improved.
The invention also provides a commercial vehicle which comprises the emergency steering power device of the commercial vehicle, as shown in fig. 2, the emergency steering power device of the commercial vehicle is fixedly arranged on the vehicle body longitudinal beam 6, the structure is simple, the spatial arrangement on the whole vehicle is convenient, the steering power cost is reduced, and the steering power efficiency is improved.
Optionally, the commercial vehicle further comprises a bracket 7, the bracket 7 is L-shaped, one end of the bracket 7 is connected to the emergency steering power device of the commercial vehicle, and the other end of the bracket 7 is connected to the body longitudinal beam 6.
In the embodiment shown in fig. 2, the bracket 7 is an L-shaped plate, the two ends of the plate are provided with reinforcing structures to form a U-shaped cross section, one end of the bracket 7 is provided with a mounting hole, the mounting hole is arranged on the mounting stud 13 in a penetrating manner and is screwed through a bolt, and the bracket 7 is pressed on the shock pad 14 in a pressing manner, so that the influence of the vehicle body longitudinal beam 6 on the vibration of the driving mechanism 1 is reduced. The other end of the bracket 7 is connected to the body side member 6 by a plurality of bolt-and-nut assemblies. Through setting up support 7, be convenient for installation and adjustment installation angle satisfy whole car spatial layout's demand, and the shock attenuation is effectual.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations, and substitutions will occur to those skilled in the art without departing from the scope of the present invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. Emergent power device that turns to of commercial car, its characterized in that includes:
the driving mechanism (1), the body (11) of the said driving mechanism (1) is fixedly set up on the car body;
the emergency valve (2) is fixedly arranged on the shell (11), a first oil duct is arranged in the emergency valve (2), and two ends of the first oil duct are respectively communicated with an outlet of the main oil pump and the power steering gear; the emergency valve (2) is configured to transmit power steering oil of an outlet of the main oil pump to the power steering gear to complete steering assistance;
emergency pump (3), the power input end of emergency pump (3) is connected the power take off end of actuating mechanism (1), be equipped with the second oil duct in emergency pump (3), the second oil duct with first oil duct intercommunication sets up, actuating mechanism (1) can drive emergency pump (3) work makes emergency pump (3) to power steering gear provides power steering oil is in order to accomplish the emergent helping hand that turns to.
2. Emergency steering power unit for a commercial vehicle according to claim 1, characterised in that the emergency valve (2) is arranged at the end of the housing (11) facing the emergency pump (3) and is connected fixedly to the emergency pump (3) by means of a connecting piece (5).
3. Emergency steering power plant for a commercial vehicle according to claim 1, characterised in that the drive mechanism (1) is a direct current drive motor.
4. The emergency steering power device for the commercial vehicle according to claim 1, wherein a plurality of mounting studs (13) are arranged on the housing (11) of the driving mechanism (1), the mounting studs (13) are connected to the vehicle body longitudinal beam (6), each mounting stud (13) is provided with a shock pad (14), and two ends of each shock pad (14) are respectively abutted to the housing (11) and the vehicle body longitudinal beam (6).
5. The emergency steering power device for the commercial vehicle according to claim 1, wherein one end of the second oil passage, which is far away from the first oil passage, is a second oil inlet (31), and the second oil inlet (31) is communicated with a power steering oil tank.
6. The emergency steering power plant of a commercial vehicle according to claim 1, characterized in that the first oil channel is provided with a flow detector (4), and when the flow detected by the flow detector (4) is smaller than a set threshold value, the driving mechanism (1) starts to drive the emergency pump (3) to work.
7. The emergency steering power device for the commercial vehicle according to claim 1, wherein the driving mechanism (1) is provided with a motor power interface (15) and a signal interface (16), the motor power interface (15) is connected with a vehicle power supply, and the signal interface (16) is connected with a vehicle signal line.
8. The emergency steering power plant of a commercial vehicle according to any one of claims 1-7, wherein when the main oil pump is operating normally, the power steering oil enters the power steering gear through the first oil passage to perform steering assist; when the main oil pump fails, the driving mechanism (1) starts and drives the emergency pump (3) to work, and the power steering oil enters the first oil duct through the second oil duct and then enters the power steering gear to complete emergency steering assistance.
9. Commercial vehicle, characterized in that it comprises an emergency steering power plant of a commercial vehicle according to any one of claims 1 to 8, which is fixedly mounted on the body longitudinal beam (6).
10. The commercial vehicle according to claim 9, characterized in that it further comprises a bracket (7), said bracket (7) is L-shaped, one end of said bracket (7) is connected to the emergency steering power unit of the commercial vehicle, and the other end is connected to the body side member (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211086230.5A CN115285217A (en) | 2022-09-06 | 2022-09-06 | Emergency steering power device of commercial vehicle and commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211086230.5A CN115285217A (en) | 2022-09-06 | 2022-09-06 | Emergency steering power device of commercial vehicle and commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115285217A true CN115285217A (en) | 2022-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211086230.5A Pending CN115285217A (en) | 2022-09-06 | 2022-09-06 | Emergency steering power device of commercial vehicle and commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115285217A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200971110Y (en) * | 2006-11-14 | 2007-11-07 | 王辉 | Vehicle power steering auxiliary safety system |
| CN102358182A (en) * | 2011-08-09 | 2012-02-22 | 徐州重型机械有限公司 | Emergency steering pump drive device and hoister applied by same |
| CN102442347A (en) * | 2011-11-07 | 2012-05-09 | 沙市久隆汽车动力转向器有限公司 | Emergency valve for double-loop power-assisted steering device |
| CN203427875U (en) * | 2013-07-22 | 2014-02-12 | 上汽依维柯红岩商用车有限公司 | Steering system of heavy commercial automobile |
| EP2765061A1 (en) * | 2013-01-11 | 2014-08-13 | Astra Veicoli Industriali S.p.A. | Hydraulic pump system of an emergency hydraulic power steering |
| CN205890975U (en) * | 2016-08-18 | 2017-01-18 | 陕西同力重工股份有限公司 | Two return circuits of emergent formula turn to device |
| CN107554602A (en) * | 2017-08-17 | 2018-01-09 | 北京福田戴姆勒汽车有限公司 | Emergency double loop hydraulic booster steering, vehicle and method |
| CN110027612A (en) * | 2018-01-12 | 2019-07-19 | 芜湖佳景科技有限公司 | Commercial vehicle and its steering system |
| CN213262577U (en) * | 2020-06-10 | 2021-05-25 | 南京金龙客车制造有限公司 | Emergency steering system based on two-shaft power take-off of gearbox |
| CN213598645U (en) * | 2020-10-21 | 2021-07-02 | 南通环球转向器制造有限公司 | Pressure control emergency valve |
| CN114179906A (en) * | 2021-12-24 | 2022-03-15 | 三一汽车起重机械有限公司 | Emergency steering system and working vehicle |
-
2022
- 2022-09-06 CN CN202211086230.5A patent/CN115285217A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200971110Y (en) * | 2006-11-14 | 2007-11-07 | 王辉 | Vehicle power steering auxiliary safety system |
| CN102358182A (en) * | 2011-08-09 | 2012-02-22 | 徐州重型机械有限公司 | Emergency steering pump drive device and hoister applied by same |
| CN102442347A (en) * | 2011-11-07 | 2012-05-09 | 沙市久隆汽车动力转向器有限公司 | Emergency valve for double-loop power-assisted steering device |
| EP2765061A1 (en) * | 2013-01-11 | 2014-08-13 | Astra Veicoli Industriali S.p.A. | Hydraulic pump system of an emergency hydraulic power steering |
| CN203427875U (en) * | 2013-07-22 | 2014-02-12 | 上汽依维柯红岩商用车有限公司 | Steering system of heavy commercial automobile |
| CN205890975U (en) * | 2016-08-18 | 2017-01-18 | 陕西同力重工股份有限公司 | Two return circuits of emergent formula turn to device |
| CN107554602A (en) * | 2017-08-17 | 2018-01-09 | 北京福田戴姆勒汽车有限公司 | Emergency double loop hydraulic booster steering, vehicle and method |
| CN110027612A (en) * | 2018-01-12 | 2019-07-19 | 芜湖佳景科技有限公司 | Commercial vehicle and its steering system |
| CN213262577U (en) * | 2020-06-10 | 2021-05-25 | 南京金龙客车制造有限公司 | Emergency steering system based on two-shaft power take-off of gearbox |
| CN213598645U (en) * | 2020-10-21 | 2021-07-02 | 南通环球转向器制造有限公司 | Pressure control emergency valve |
| CN114179906A (en) * | 2021-12-24 | 2022-03-15 | 三一汽车起重机械有限公司 | Emergency steering system and working vehicle |
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