CN113431812A - Intelligent control system for emergency vehicle - Google Patents
Intelligent control system for emergency vehicle Download PDFInfo
- Publication number
- CN113431812A CN113431812A CN202110806808.9A CN202110806808A CN113431812A CN 113431812 A CN113431812 A CN 113431812A CN 202110806808 A CN202110806808 A CN 202110806808A CN 113431812 A CN113431812 A CN 113431812A
- Authority
- CN
- China
- Prior art keywords
- oil
- pump
- electric control
- motor
- hydraulic motor
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
-
- 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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
- F15B21/0423—Cooling
Abstract
The invention relates to an intelligent control system of a rescue vehicle, belonging to the technical field of special vehicles and comprising a first hydraulic motor, an electric control variable closed pump, an oil tank, a discharge control valve, a motor flushing valve and an oil supplementing pump; one end of a driving shaft of a prime motor in the vehicle is in transmission connection with an electric control variable closed pump, the electric control variable closed pump outputs hydraulic oil under the condition that the driving shaft of the prime motor runs, and two working oil ports of the electric control variable closed pump are respectively connected with a first hydraulic motor through a first main oil way and a second main oil way; the electric control variable closed pump is connected with the displacement control valve, and the displacement control valve is externally connected with the electric control module; the motor flushing valve is provided with two oil ports, is connected with the two oil ports of the first hydraulic motor in parallel and is respectively connected with two oil paths. The drainage emergency vehicle is suitable for long-time work, has good stability and high safety, and can effectively meet the emergency function of the drainage emergency vehicle.
Description
Technical Field
The invention relates to an intelligent control system for emergency vehicles, and belongs to the technical field of special vehicles.
Background
Along with the gradual warming of global climate, natural disasters are continuously increased, the requirements for drought resistance and waterlogging drainage are continuously expanded, particularly, drainage facilities of some cities are built before many years and relatively lagged behind, rainwater cannot be drained timely when heavy rain occurs, waterlogging is caused, inconvenience is brought to life and travel of citizens, even the safety of lives and properties of the citizens is endangered seriously, so that a drainage emergency car is produced at the right moment, a drainage emergency car owner needs to be used for quickly draining waterlogging flood, the drainage emergency car owner can also be used for the fields of agricultural drought resistance water supply, water transfer in the near water, supplement of pump stations, emergency pumping drainage and the like, and the drainage car is particularly suitable for drainage operation of urban salvage.
However, in the existing drainage emergency vehicle control system, an open system is mainly adopted, the working mechanism is relatively simple, when the drainage emergency vehicle control system is used as emergency and disaster relief vehicle equipment, the heat energy generated by the system is large, the volume of a hydraulic oil tank is large, a heat dissipation device is large, the cost of the whole mechanism is high, and the whole vehicle must be shut down to dissipate heat after working for a period of time, so that the requirement of long-time operation of the emergency vehicle cannot be met obviously, the emergency and disaster relief must be cared, and the emergency function is not really embodied, so that the improvement is urgently needed.
The utility model discloses a double variable closed pump accuse electric liquid position servo system disclosed in the chinese utility model patent of publication number CN202789874U, including two-way variable pump and two servo motor, wherein first servo motor pass through the shaft coupling with two-way variable pump main shaft is connected, second servo motor with the variable mechanism of two-way variable pump connects, two-way variable pump passes through closed auxiliary oil circuit and links to each other with the piston cylinder, the piston cylinder passes through pull rod formula displacement sensor and is connected with computer control module, computer control module through two servo driver respectively with first servo motor and second servo motor connect.
The reference example does not consider the problem that the hydraulic system needs to be used for a long time on special vehicles such as emergency vehicles and the like to cool, and cannot guarantee the working requirements of the emergency vehicles on dangerous situations, so that improvement is urgently needed.
Disclosure of Invention
In order to overcome the defects that the existing drainage emergency vehicle is insufficient in heat dissipation capacity and needs to be shut down for heat dissipation and the like, the invention designs an intelligent control system of the emergency vehicle, which is suitable for long-time work, good in stability and high in safety and can effectively meet the emergency function of the drainage emergency vehicle.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent control system for emergency vehicles comprises a first hydraulic motor, an electric control variable closed pump, an oil tank, a displacement control valve, a motor flushing valve and an oil supplementing pump; the motor flushing valve is provided with an oil way opening A and an oil way opening B, the oil way opening A of the motor flushing valve is connected with the oil way opening A of the first hydraulic motor to form a first main oil way, the oil way opening B of the motor flushing valve is connected with the oil way opening B of the first hydraulic motor to form a second main oil way, the first main loop and the second main loop are connected in parallel, and the oil way opening A of the motor flushing valve and the oil way opening B of the motor flushing valve are both connected with an oil drainage opening of a shell of the first hydraulic motor through a shuttle valve; an oil inlet of an oil supplementing pump is connected with the oil tank, an oil outlet of the oil supplementing pump is connected with the auxiliary oil way, and the oil supplementing pump is driven by a prime motor in the vehicle to output oil; one end of a driving shaft of a prime motor in the vehicle is in transmission connection with an electric control variable closed pump, the electric control variable closed pump outputs hydraulic oil under the condition that the driving shaft of the prime motor runs, and two working oil ports of the electric control variable closed pump are respectively connected with a first hydraulic motor through a first main oil way and a second main oil way; the electric control variable closed pump is connected with the displacement control valve, the displacement control valve is externally connected with an electric control module, and the electric control module is used for controlling the opening of the displacement control valve.
Furthermore, the other end of the driving shaft of the prime motor in the vehicle is in transmission connection with an external gear pump, an oil inlet of the external gear pump is connected with an oil tank, an oil outlet of the external gear pump is connected with a second hydraulic motor, and an output end of the second hydraulic motor is connected with a heat dissipation device.
And further, the auxiliary oil way is connected with an oil supplementing overflow valve.
Further, the input end and the output end of the oil supplementing pump are respectively provided with a first filtering device and a second filtering device.
Further, the first filtering device is an oil absorption filter screen and is used for preventing foreign matters from entering a system pipeline; the second filtering device is a filter and is used for filtering oil entering the system pipeline from the external gear pump and then entering the servo mechanism and the oil supplementing pump.
Furthermore, a pressure sensor is arranged on an oil way of the electric control variable closed pump.
Further, the heat dissipation device is an air-cooled heat sink.
Further, a temperature sensor is arranged in the oil tank.
An operation method based on an emergency vehicle intelligent control system comprises the following steps:
s1: zero displacement start-up: before starting an automobile engine, adjusting an input button of an automobile electric control module to enable the discharge capacity of an electric control variable closed pump to be zero;
s2: filling by a filling pump: after the rotating speed of an automobile engine is adjusted to an idle speed, an oil supplementing pump supplements oil to the system until the oil in the system reaches a stable oil supplementing pressure;
s3: increasing the input signal: adjusting an input button of an automobile electric control module to improve the water pumping amount of the first hydraulic motor;
s4: emergency working condition: after the automobile electric control module loses power or an emergency stop button of the automobile electric control module is pressed, the discharge capacity of the electric control variable closed pump automatically returns to zero.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
1. the invention controls the opening of the discharge capacity control valve through the automobile electric control module in the vehicle, thereby controlling the position of the servo control cylinder, the position of the servo control cylinder corresponds to the swash plate swing angle of the electric control variable closed pump, the swash plate swing angle of the electric control variable closed pump is in direct proportion to the discharge capacity of oil, thereby realizing the control of the automobile electric control module on the discharge capacity of the oil output, the size of the oil output discharge capacity is controlled through the automobile electric control module, the stability is good, the safety is high, the whole vehicle can work for a longer time, the control is more accurate, the service life of the vehicle is greatly prolonged, and simultaneously, the requirement of emergency rescue of the vehicle is also met.
2. According to the invention, after entering a first hydraulic motor through a first main oil way, high-pressure oil pushes the first hydraulic motor to rotate, so that a water pump of a drainage emergency car is driven to rotate to pump water, the drainage emergency car is helped to drain flood and resist waterlogging, and after passing through the first hydraulic motor, hydraulic oil enters a second main oil way through an oil return port of the first hydraulic motor to form a closed-loop control system; the motor flushing valve is arranged, oil with certain oil return pressure in an oil circuit of the system is discharged from a shell oil drain port of the first hydraulic motor, meanwhile, oil is supplemented into the oil circuit of the system through the oil supplementing pump, namely, part of hot oil is discharged from the interior of the system, part of cold oil is supplemented, and a heat radiating device is further arranged in the oil tank for radiating, so that the temperature of the oil is further prevented from being too high, the cooling capacity of the system is generally enhanced, the emergency rescue requirement of a vehicle is met, and the continuous working time of the vehicle is prolonged.
Drawings
Fig. 1 is a hydraulic schematic of the present invention.
Wherein the reference numerals are: 1. a first hydraulic motor; 2. an electrically controlled variable closed pump; 3. a first filtering device; 4. externally connecting a gear pump; 5. a second filtering device; 6. an oil tank; 7. a heat sink; 8. a temperature sensor; 9. a pressure sensor; 10. a displacement control valve; 11. an oil-supplementing overflow valve; 12. a first main oil passage; 13. a second main oil passage; 14. a motor flush valve; 15. an oil replenishing pump; 16. a second hydraulic motor; 17. a drive shaft; 18. and an auxiliary oil path.
Detailed Description
The present invention will be described in more detail with reference to examples.
As shown in fig. 1, the emergency vehicle intelligent control system of the embodiment includes a first hydraulic motor 1, an electrically controlled variable closed pump 2, an external gear pump 4, an oil tank 6, a heat sink 7, a temperature sensor 8, a pressure sensor 9, a displacement control valve 10, an oil-supplementing overflow valve 11, a motor flushing valve 14, an oil-supplementing pump 15, and a second hydraulic motor 16;
the motor flushing valve is provided with an oil way opening A and an oil way opening B, the oil way opening A of the motor flushing valve 14 is connected with the oil way opening A of the first hydraulic motor 1 to form a first main oil way 12, the oil way opening B of the motor flushing valve 14 is connected with the oil way opening B of the first hydraulic motor 1 to form a second main oil way 13, the first main loop 12 and the second main loop 13 are connected in parallel, and the oil way opening A of the motor flushing valve and the oil way opening B are both connected with an oil drainage opening of a shell of the first hydraulic motor through a shuttle valve; an oil inlet of an external gear pump 4 is connected with an oil tank 6, an oil inlet of an oil supplementing pump 15 is connected with the oil tank 6, an oil outlet of the oil supplementing pump 15 is connected with an auxiliary oil way 18, the auxiliary oil way 18 is connected with an oil supplementing overflow valve 11, the oil supplementing overflow valve 11 can prevent the system from being overloaded, when the system works normally, a valve port of the oil supplementing overflow valve 11 is in a closed state, oil completely enters the auxiliary oil way 18 through the oil supplementing pump 15, when the system is overloaded and the pressure of the system exceeds the set value of the oil supplementing overflow valve 11, the oil supplementing overflow valve 11 is rapidly opened, the oil flows back to the oil tank 6, the pressure of the system is not increased any more, and the safety of the system is ensured; the oil supply pump 15 is driven by a prime motor in the vehicle to output oil, and the oil supply pump 15 has the function of supplying oil discharge and flushing flow of a pump and a motor shell in a system;
an oil outlet of the external gear pump 4 is connected with a second hydraulic motor 16, the second hydraulic motor 16 is in transmission connection with the heat dissipation device 7, and the heat dissipation device 7 is driven by the second hydraulic motor 16 to dissipate heat of oil in the oil tank 6, so that the continuous working capacity of the vehicle is further improved;
two ends of a driving shaft 17 of a prime motor in the vehicle are respectively in transmission connection with the electrically controlled variable closed pump 2 and the external gear pump 4, the electrically controlled variable closed pump 2 outputs hydraulic oil under the condition that the driving shaft 17 of the prime motor runs, and two working oil ports of the electrically controlled variable closed pump 2 are respectively connected with the first hydraulic motor 1 through a first main oil path 12 and a second main oil path 13; meanwhile, the electric control variable closed pump 2 is connected with the displacement control valve 10, the displacement control valve 10 is externally connected with an electric control module, the electric control module is used for controlling the opening degree of the displacement control valve 10 so as to control the position of a servo control cylinder in the vehicle, the position of the servo control cylinder corresponds to the swash plate swing angle of the electric control variable closed pump 2, and meanwhile, the swash plate swing angle of the electric control variable closed pump 2 is in direct proportion to the displacement of oil, so that the electric control module controls the output displacement of the oil; the pressure sensor 9 is arranged on an oil path of the electric control variable closed pump 2, is used for measuring the pressure on the oil path of the system and is externally connected with an automobile display screen.
Further, the input and the output of oil supplementing pump 15 are provided with first filter equipment 5 and second filter equipment 3 respectively, and first filter equipment 5 is the oil absorption filter screen for in preventing the foreign matter from getting into the system pipeline, second filter equipment 3 is the filter, is used for again getting into servo and oil supplementing pump 15 after filtering from the fluid that external gear pump 4 got into in the system pipeline, further guarantees the stability of hydraulic system operation.
Further, heat abstractor 7 is the forced air cooling radiator, and the forced air cooling radiator is driven by second hydraulic motor 16, can cool down to the fluid in the oil tank 6, and second hydraulic motor 16 is driven by external gear pump 4, and the drive is swift convenient, can dispel the heat to fluid under the condition of 2 works of automatically controlled variable closed pump, prevents that the fluid that get into in the system is overheated, further improves the operating duration of vehicle.
Further, a temperature sensor 8 is arranged in the oil tank 6, the temperature sensor 8 is connected with a vehicle display screen, the temperature of oil in the oil tank 6 can be monitored at any time, if abnormity occurs, timely discovery is facilitated, the hidden danger of accidents is reduced as far as possible, and the time is guaranteed for emergency rescue and disaster relief.
The operation method based on the emergency vehicle intelligent control system comprises the following steps:
s1: zero displacement start-up: before starting the automobile engine, adjusting an input button of an automobile electric control module to enable the discharge capacity of the electric control variable closed pump 2 to be zero;
s2: the oil replenishing pump 15 is filled with liquid: after the rotating speed of an automobile engine is adjusted to be more than 1000r/min at idle speed, the oil supplementing pump 15 supplements oil to the system until the oil in the system reaches stable oil supplementing pressure of 3.5 MPa; particularly, when the vehicle is idle for a long time and put into operation again, the oil supplementing pump 15 is required to fill oil in the pipeline for subsequent operation, the stable oil supplementing pressure is required to be achieved, otherwise air enters the displacement control valve 10, and the phenomenon of unstable control is possibly caused;
s3: increasing the input signal: adjusting an input button of an automobile electronic control module, increasing the water pumping amount of the first hydraulic motor 1, and increasing the working pressure in the system along with the increase of the water pumping amount of the first hydraulic motor 1, wherein the system pressure transmitted to an automobile display screen by the pressure sensor 9 is observed at any moment when the water pumping amount is increased because the lift of a working site is variable;
s4: emergency working condition: after the automobile electric control module loses power or presses an emergency stop button of the automobile electric control module, the discharge capacity of the electric control variable closed pump 2 automatically returns to zero.
The working principle of the invention is as follows: the automobile electric control module controls the opening of the displacement control valve 10, so as to control the position of a servo control cylinder, the position of the servo control cylinder corresponds to the swash plate swing angle of the electric control variable closed pump 2, the swash plate swing angle of the electric control variable closed pump 2 is in direct proportion to the oil displacement, so that the automobile electric control module controls the size of the oil output displacement, the oil output displacement is controlled by the automobile electric control module, the oil displacement is automatically reduced when the displacement is high, the oil line pressure of a system is prevented from being overhigh, the oil displacement is increased when the displacement is low, the system is ensured to operate, the stability is good, the safety is high, the whole automobile can work for a longer time, and the requirement of vehicle emergency rescue is met; after entering the first hydraulic motor 1 through the first main oil way 12, high-pressure oil pushes the first hydraulic motor 1 to rotate, so that a water pump of the drainage emergency car is driven to rotate to pump water, the drainage emergency car is helped to drain flood and resist waterlogging, and after passing through the first hydraulic motor 1, the hydraulic oil enters the second main oil way 13 through an oil return port of the first hydraulic motor 1 to form a closed-loop control system; the arrangement of the motor flushing valve 14 discharges oil with certain oil return pressure in an oil path of the system from a shell oil drainage port of the first hydraulic motor 1, and simultaneously supplements the oil into the oil path of the system through the oil supplementing pump 15, namely a part of hot oil is discharged from the interior of the system, and a part of cold oil is supplemented, so that the cooling capacity of the system is enhanced, the vehicle meets the emergency rescue requirement, and the continuous working time of the vehicle is prolonged.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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 invention.
Claims (9)
1. The utility model provides an emergency vehicle intelligence control system which characterized in that: comprises a first hydraulic motor (1), an electric control variable closed pump (2), an oil tank (6), a displacement control valve (10), a motor flushing valve (14) and an oil supplementing pump (15);
the motor flushing valve (14) is provided with an oil intersection A and an oil passage opening B, the oil intersection A of the motor flushing valve (14) is connected with the oil intersection A of the first hydraulic motor (1) to form a first main oil passage (12), the oil intersection B of the motor flushing valve (14) is connected with the oil intersection B of the first hydraulic motor (1) to form a second main oil passage (13), the first main loop (12) and the second main loop (13) are connected in parallel, and the oil intersection A and the oil intersection B of the motor flushing valve (14) are both connected with a shell oil drainage opening of the first hydraulic motor (1) through a shuttle valve; an oil inlet of an oil supplementing pump (15) is connected with the oil tank (6), an oil outlet of the oil supplementing pump (15) is connected with an auxiliary oil way (18), and the oil supplementing pump (15) outputs oil liquid under the driving of a prime motor in a vehicle;
one end of a driving shaft (17) of a prime motor in the vehicle is in transmission connection with the electric control variable closed pump (2), the electric control variable closed pump (2) outputs hydraulic oil under the condition that the driving shaft (17) of the prime motor operates, and two working oil ports of the electric control variable closed pump (2) are respectively connected with the first hydraulic motor (1) through a first main oil way (12) and a second main oil way (13); the electric control variable closed pump (2) is connected with the displacement control valve (10), the displacement control valve (10) is externally connected with an electric control module, and the electric control module is used for controlling the opening degree of the displacement control valve (10).
2. An intelligent control system for an emergency vehicle according to claim 1, wherein: the other end of a driving shaft (17) of a prime motor in the vehicle is connected with an external gear pump (4) in a transmission mode, an oil inlet of the external gear pump (4) is connected with an oil tank (6), an oil outlet of the external gear pump (4) is connected with a second hydraulic motor (16), and an output end of the second hydraulic motor (16) is connected with a heat dissipation device (7).
3. An intelligent control system for an emergency vehicle according to claim 1, wherein: the auxiliary oil path (18) is connected with an oil supplementing and overflowing valve (11).
4. An intelligent control system for an emergency vehicle according to claim 1, wherein: the input end and the output end of the oil supplementing pump (15) are respectively provided with a first filtering device (5) and a second filtering device (3).
5. An intelligent control system for an emergency vehicle according to claim 4, wherein: the first filtering device (5) is an oil absorption filter screen and is used for preventing foreign matters from entering a system pipeline; the second filtering device (3) is a filter and is used for filtering oil entering a system pipeline from the external gear pump (4) and then entering the servo mechanism and the oil supplementing pump (15).
6. An intelligent control system for an emergency vehicle according to claim 1, wherein: and a pressure sensor (9) is arranged on an oil way of the electric control variable closed pump (2).
7. An intelligent control system for an emergency vehicle according to claim 2, wherein: the heat dissipation device (7) is an air-cooled radiator.
8. An intelligent control system for an emergency vehicle according to claim 1, wherein: a temperature sensor (8) is arranged in the oil tank (6).
9. An operation method of an intelligent control system of an emergency vehicle based on any one of claims 1-8, characterized in that: the method comprises the following steps:
s1: zero displacement start-up: before starting the automobile engine, adjusting an input button of an automobile electric control module to enable the discharge capacity of the electric control variable closed pump (2) to be zero;
s2: the oil replenishing pump (15) is filled with liquid: after the rotating speed of an automobile engine is adjusted to an idle speed, an oil supplementing pump (15) supplements oil to the system until the oil in the system reaches a stable oil supplementing pressure;
s3: increasing the input signal: adjusting an input button of an automobile electric control module to improve the water pumping amount of the first hydraulic motor (1);
s4: emergency working condition: after the automobile electric control module loses power or presses an emergency stop button of the automobile electric control module, the discharge capacity of the electric control variable closed pump (2) automatically returns to zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110806808.9A CN113431812A (en) | 2021-07-16 | 2021-07-16 | Intelligent control system for emergency vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110806808.9A CN113431812A (en) | 2021-07-16 | 2021-07-16 | Intelligent control system for emergency vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113431812A true CN113431812A (en) | 2021-09-24 |
Family
ID=77760778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110806808.9A Pending CN113431812A (en) | 2021-07-16 | 2021-07-16 | Intelligent control system for emergency vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113431812A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0648239A (en) * | 1992-02-20 | 1994-02-22 | Kensetsusho Kinkichihou Kensetsukyoku | Drainage pump car |
| JPH11132183A (en) * | 1997-10-29 | 1999-05-18 | Kubota Corp | Drain operation controlling method for drain pump vehicle |
| CN103089757A (en) * | 2013-01-29 | 2013-05-08 | 三一重工股份有限公司 | Closed hydraulic loop hot oil displacement system and concrete pumping device |
| CN106799985A (en) * | 2017-01-24 | 2017-06-06 | 南京南汽畅通公路机械有限公司 | A kind of hydraulic power drainage system for water drainage car of meeting an urgent need |
| CN109139588A (en) * | 2018-11-09 | 2019-01-04 | 徐工集团工程机械有限公司 | Hydraulic power system and the dual-purpose working truck of rail |
| CN112897335A (en) * | 2021-03-31 | 2021-06-04 | 安徽柳工起重机有限公司 | Cantilever type aerial work platform |
-
2021
- 2021-07-16 CN CN202110806808.9A patent/CN113431812A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0648239A (en) * | 1992-02-20 | 1994-02-22 | Kensetsusho Kinkichihou Kensetsukyoku | Drainage pump car |
| JPH11132183A (en) * | 1997-10-29 | 1999-05-18 | Kubota Corp | Drain operation controlling method for drain pump vehicle |
| CN103089757A (en) * | 2013-01-29 | 2013-05-08 | 三一重工股份有限公司 | Closed hydraulic loop hot oil displacement system and concrete pumping device |
| CN106799985A (en) * | 2017-01-24 | 2017-06-06 | 南京南汽畅通公路机械有限公司 | A kind of hydraulic power drainage system for water drainage car of meeting an urgent need |
| CN109139588A (en) * | 2018-11-09 | 2019-01-04 | 徐工集团工程机械有限公司 | Hydraulic power system and the dual-purpose working truck of rail |
| CN112897335A (en) * | 2021-03-31 | 2021-06-04 | 安徽柳工起重机有限公司 | Cantilever type aerial work platform |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108561461B (en) | Multifunctional integrated forklift hydraulic system | |
| CN107035501A (en) | A kind of adaptive cooling system with temperature control | |
| WO2023051391A1 (en) | Hydraulic-driven auxiliary power generation system for vehicle | |
| KR20120085732A (en) | Hydraulic control device for hybrid transmission | |
| CN112160904A (en) | High-power electrically-driven fracturing sledge power end lubricating system | |
| CN105114374A (en) | Hydraulic system | |
| CN216102364U (en) | Novel emergency steering hydraulic system and engineering machinery | |
| CN113431812A (en) | Intelligent control system for emergency vehicle | |
| CN201390253Y (en) | Hydraulic transmission device of anti-explosion mining steel-wheel standard-rail locomotive | |
| CN103316799B (en) | High-pressure water conservancy injection system | |
| CN104595387B (en) | A kind of integrated form Retarder | |
| CN212297081U (en) | Emergency operation hydraulic system and hydraulic hoist | |
| CN213744203U (en) | Closed hydraulic system | |
| CN109058453B (en) | A kind of liquid transmission control method of the real-time automatic adjustment amount of changing oil | |
| CN111734696B (en) | Closed hydraulic system based on closed-loop control and control method | |
| CN208749698U (en) | A kind of low-power consumption hydrostatic transmission | |
| CN209800384U (en) | remote pressure regulating load sensitive hydraulic station | |
| CN208123170U (en) | A kind of beach vehicle hydraulic pressure drive system | |
| CN214465194U (en) | Pressure cut-off control device for electric proportional pump and concrete pump truck | |
| CN204828103U (en) | Hydraulic drive mills and digs control system | |
| CN115030931B (en) | Closed hydraulic system, fracturing truck and control method of closed hydraulic system | |
| CN218235635U (en) | Closed hydraulic system and engineering vehicle | |
| CN220470341U (en) | Energy-saving hydraulic oil supply mechanism | |
| CN217814205U (en) | Steering cooling system based on thermostat and engineering machine | |
| CN215171252U (en) | Bidirectional closed hydraulic pump device and independent heat dissipation system of all-terrain armored vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |