CN113175489A - Hydraulic power source shared by hydro-pneumatic spring system and rear wheel steering system and vehicle - Google Patents
Hydraulic power source shared by hydro-pneumatic spring system and rear wheel steering system and vehicle Download PDFInfo
- Publication number
- CN113175489A CN113175489A CN202110431016.8A CN202110431016A CN113175489A CN 113175489 A CN113175489 A CN 113175489A CN 202110431016 A CN202110431016 A CN 202110431016A CN 113175489 A CN113175489 A CN 113175489A
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- CN
- China
- Prior art keywords
- power distribution
- distribution valve
- oil
- rear wheel
- port
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
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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
- B62D5/062—Details, component parts
- B62D5/064—Pump driven independently from vehicle engine, e.g. electric driven pump
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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
- B62D5/07—Supply of pressurised fluid for steering also supplying other consumers ; control thereof
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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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
Abstract
A hydraulic power source and vehicle that hydro-pneumatic spring system and rear wheel steering system share wherein: an oil pump outlet of the motor pump is connected with an oil inlet of the power distribution valve; an oil inlet of the overflow valve is connected with an oil pump outlet of the motor pump, and an oil return port of the overflow valve is connected with an oil return pipe of an oil tank of the motor pump; the power distribution valve is connected with a rear wheel set middle system through a port P1, connected with a rear wheel steering system through a port A and connected with a hydro-pneumatic spring system through a port B; when the power distribution valve is not electrified, the P1 port and the oil inlet port of the power distribution valve are in a normally open state; when the rear wheel steering system is adjusted, the power distribution valve is electrified to enable the port A to be communicated with an oil inlet of the power distribution valve, and the motor pump supplies oil to the rear wheel steering system; when the hydro-pneumatic spring system is adjusted, the power distribution valve is electrified to enable the port B to be communicated with an oil inlet of the power distribution valve, and oil is supplied to the hydro-pneumatic spring system. The occupied arrangement space is reduced, the design, manufacture and management cost is reduced, the use saturation rate of the hydraulic power source is increased, and the safety is improved.
Description
Technical Field
The application relates to the technical field of vehicles, in particular to a hydraulic power source shared by a hydro-pneumatic spring system and a rear wheel steering system and a vehicle.
Background
Currently, in a vehicle equipped with a hydro-pneumatic spring system and a rear wheel steering system, two independent hydraulic power sources (such as motor pumps) are generally arranged to supply oil to the hydro-pneumatic spring system and the rear wheel steering system respectively. According to the function setting of the two independent hydraulic power sources, the two independent hydraulic power sources cannot be operated simultaneously at the same time in the whole vehicle operation process. In practice, it has been found that the following disadvantages exist in the arrangement of two independent hydraulic power sources:
1. occupy too much vehicle layout space;
2. increase the design, manufacture and management costs;
3. the saturation rate of the hydraulic power source is low, and resources are wasted;
4. the two sets of hydraulic power sources are mutually independent, and potential safety hazards exist.
Disclosure of Invention
In view of this, the embodiment of the present application discloses a hydraulic power source and a vehicle that are shared by a hydro-pneumatic spring system and a rear wheel steering system.
The first aspect of the embodiment of this application discloses a hydraulic power source of hydro-pneumatic spring system and rear wheel steering system sharing, includes:
the motor pump, the overflow valve and the power distribution valve;
an oil pump outlet of the motor pump is connected with an oil inlet of the power distribution valve;
an oil inlet of the overflow valve is connected with an oil pump outlet of the motor pump, and an oil return port T of the overflow valve is connected with an oil return pipe of an oil tank of the motor pump;
the power distribution valve is connected with a rear wheel set middle system through a P1 port, and when the power distribution valve is not electrified, the P1 port and an oil inlet of the power distribution valve are in a normally open state;
the power distribution valve is connected with a rear wheel steering system through an opening A, when the rear wheel steering system is adjusted, the power distribution valve is electrified, so that the opening A is communicated with an oil inlet of the power distribution valve, and the motor pump supplies oil to the rear wheel steering system;
the power distribution valve is connected with the hydro-pneumatic spring system through a port B, when the hydro-pneumatic spring system is adjusted, the power distribution valve is electrified, so that the port B is communicated with an oil inlet of the power distribution valve, and the motor pump supplies oil to the hydro-pneumatic spring system.
Optionally, an outlet of the oil pump of the motor pump is connected to the oil pressure meter interface MP.
Optionally, the power distribution valve comprises a three-position, four-way solenoid valve.
The overflow valve is used for adjusting the maximum oil supply pressure of the motor pump not to exceed a set pressure value.
The second aspect of the embodiment of the application discloses a vehicle, and the vehicle comprises the hydraulic power source shared by the hydro-pneumatic spring system and the rear wheel steering system disclosed by the first aspect of the embodiment of the application.
Optionally, the vehicle comprises a fuel-powered vehicle or an electrically powered vehicle.
Compared with the prior art, the embodiment of the application has at least the following beneficial effects:
in the embodiment of the application, two sets of independent hydraulic power sources (such as motor pumps) for supplying oil to the hydro-pneumatic spring system and the rear wheel steering system respectively are simplified into one set of shared hydraulic power source in an integrated mode, the occupied vehicle layout space is reduced, the design, manufacture and management cost is reduced, the use saturation rate of the hydraulic power sources is increased, and the safety is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a hydraulic power source shared by a hydro-pneumatic spring system and a rear wheel steering system disclosed in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a hydraulic power source shared by a hydro-pneumatic spring system and a rear wheel steering system according to an embodiment of the present disclosure. As shown in fig. 1, the hydraulic power source shared by the hydro-pneumatic spring system and the rear wheel steering system includes:
the device comprises a motor pump 1, an overflow valve 2 and a power distribution valve 3;
an oil pump outlet a of the motor pump is connected with an oil inlet b of the power distribution valve;
an oil inlet of the overflow valve is connected with an oil pump outlet a of the motor pump, an oil return port T of the overflow valve is connected with an oil tank oil return pipe c of the motor pump 1, namely, oil coming out of the oil return port T of the overflow valve returns to an oil tank of the motor pump 1 through the oil tank oil return pipe c of the motor pump 1;
the power distribution valve 3 is connected with a rear wheel set center system through a P1 port, and when the power distribution valve 3 is not electrified, the P1 port and an oil inlet b of the power distribution valve 3 are in a normally open state;
the power distribution valve 3 is connected with a rear wheel steering system through an opening A, when the rear wheel steering system is adjusted, the power distribution valve 3 is electrified to enable the opening A to be communicated with an oil inlet b of the power distribution valve, and the motor pump 1 supplies oil to the rear wheel steering system;
the power distribution valve 3 is connected with the hydro-pneumatic spring system through a port B, when the hydro-pneumatic spring system is adjusted, the power distribution valve 3 is electrified to enable the port B to be communicated with an oil inlet B of the power distribution valve 3, and the motor pump 1 supplies oil to the hydro-pneumatic spring system.
Optionally, an oil pump outlet b of the motor pump 1 is connected to the oil pressure meter interface MP.
Optionally, the power distribution valve 3 comprises a three-position four-way solenoid valve.
The overflow valve 2 is used for adjusting the maximum oil supply pressure of the motor pump 1 not to exceed a set pressure value.
The embodiment of the application further discloses a vehicle, which is shown in figure 1 and comprises a hydraulic power source shared by the hydro-pneumatic spring system and the rear wheel steering system.
Optionally, the vehicle comprises a fuel-powered vehicle or an electrically powered vehicle.
In the embodiment of the application, two sets of independent hydraulic power sources (such as motor pumps) for supplying oil to the hydro-pneumatic spring system and the rear wheel steering system respectively are simplified into one set of shared hydraulic power source in an integrated mode, the occupied vehicle layout space is reduced, the design, manufacture and management cost is reduced, the use saturation rate of the hydraulic power sources is increased, and the safety is improved.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a hydraulic power source of hydro-pneumatic spring system and rear wheel steering system sharing which characterized in that includes:
the motor pump, the overflow valve and the power distribution valve;
an oil pump outlet of the motor pump is connected with an oil inlet of the power distribution valve;
an oil inlet of the overflow valve is connected with an oil pump outlet of the motor pump, and an oil return port T of the overflow valve is connected with an oil return pipe of an oil tank of the motor pump;
the power distribution valve is connected with a rear wheel set middle system through a P1 port, and when the power distribution valve is not electrified, the P1 port and an oil inlet of the power distribution valve are in a normally open state;
the power distribution valve is connected with a rear wheel steering system through an opening A, when the rear wheel steering system is adjusted, the power distribution valve is electrified, so that the opening A is communicated with an oil inlet of the power distribution valve, and the motor pump supplies oil to the rear wheel steering system;
the power distribution valve is connected with the hydro-pneumatic spring system through a port B, when the hydro-pneumatic spring system is adjusted, the power distribution valve is electrified, so that the port B is communicated with an oil inlet of the power distribution valve, and the motor pump supplies oil to the hydro-pneumatic spring system.
2. The hydraulic power source of claim 1, wherein an oil pump outlet of the motor pump is connected to a hydraulic pressure gauge port MP.
3. The hydraulic power source of claim 1 or 2, wherein the power distribution valve comprises a three-position, four-way solenoid valve.
4. The hydraulic power source of claim 3, wherein the relief valve is configured to regulate a maximum supply pressure of the motor pump to not exceed a set pressure value.
5. A vehicle comprising a hydraulic power source common to the hydro-pneumatic spring system and the rear wheel steering system of claim 4.
6. The vehicle of claim 5, wherein the vehicle comprises a fuel-powered vehicle or an electrically powered vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110431016.8A CN113175489A (en) | 2021-04-21 | 2021-04-21 | Hydraulic power source shared by hydro-pneumatic spring system and rear wheel steering system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110431016.8A CN113175489A (en) | 2021-04-21 | 2021-04-21 | Hydraulic power source shared by hydro-pneumatic spring system and rear wheel steering system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113175489A true CN113175489A (en) | 2021-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110431016.8A Pending CN113175489A (en) | 2021-04-21 | 2021-04-21 | Hydraulic power source shared by hydro-pneumatic spring system and rear wheel steering system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113175489A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1382059A (en) * | 1971-12-29 | 1975-01-29 | Tyrone Hydraulics | Supplementary steering system for vehicles |
| US20050205338A1 (en) * | 2004-03-11 | 2005-09-22 | Isuzu Motors Limited | Power steering system for vehicle |
| CN104369639A (en) * | 2014-09-23 | 2015-02-25 | 北京理工大学 | Wheel-type amphibious vehicle retractable type oil gas suspension system and control method |
| CN111873781A (en) * | 2019-10-24 | 2020-11-03 | 中国北方车辆研究所 | Unmanned vehicle in-wheel motor driving system that traveles |
| CN112623026A (en) * | 2020-12-30 | 2021-04-09 | 徐州徐工挖掘机械有限公司 | Steering and suspension adjusting composite system and engineering vehicle |
-
2021
- 2021-04-21 CN CN202110431016.8A patent/CN113175489A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1382059A (en) * | 1971-12-29 | 1975-01-29 | Tyrone Hydraulics | Supplementary steering system for vehicles |
| US20050205338A1 (en) * | 2004-03-11 | 2005-09-22 | Isuzu Motors Limited | Power steering system for vehicle |
| CN104369639A (en) * | 2014-09-23 | 2015-02-25 | 北京理工大学 | Wheel-type amphibious vehicle retractable type oil gas suspension system and control method |
| CN111873781A (en) * | 2019-10-24 | 2020-11-03 | 中国北方车辆研究所 | Unmanned vehicle in-wheel motor driving system that traveles |
| CN112623026A (en) * | 2020-12-30 | 2021-04-09 | 徐州徐工挖掘机械有限公司 | Steering and suspension adjusting composite system and engineering vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 刘刚: "重型多轴越野车辆互联油气悬架系统研究", 《中国优秀博硕士学位论文全文数据库（博士）》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210727 |