CN110645231A - Vehicle electric control liquid drive experiment bench system for auxiliary driving and recovery of energy accumulator - Google Patents
Vehicle electric control liquid drive experiment bench system for auxiliary driving and recovery of energy accumulator Download PDFInfo
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- CN110645231A CN110645231A CN201911080919.5A CN201911080919A CN110645231A CN 110645231 A CN110645231 A CN 110645231A CN 201911080919 A CN201911080919 A CN 201911080919A CN 110645231 A CN110645231 A CN 110645231A
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- valve
- way
- energy accumulator
- oil
- oil way
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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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/024—Installations or systems with accumulators used as a supplementary power source, e.g. to store energy in idle periods to balance pump load
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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
- 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
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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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation means
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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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
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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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The invention provides a vehicle electric control liquid drive experiment bench system for auxiliary driving and recovery of an energy accumulator, which comprises a main oil way, a first oil way, a second oil way and a third oil way, wherein the main oil way is communicated with the first oil way; and the first energy accumulator, the second energy accumulator, the flow sensor, the pressure sensor, the electric proportional motor, the inertia flywheel, the magnetic powder brake, the first torque rotating speed sensor, the oil tank, the reversing valve, the electromagnetic overflow valve, the filter, the variable plunger pump, the motor, the second torque rotating speed sensor, the check valve, the precision filter, the energy accumulator safety valve, the first two-position two-way valve and the second two-position two-way valve. The invention has multiple functions, can carry out experimental research on the hydraulic driving process and the braking energy recovery process of the vehicle, and can analyze the energy conversion rate and the braking energy recovery rate under different experimental conditions.
Description
Technical Field
The invention belongs to an electric control liquid drive experiment bench system for a vehicle, in particular to an electric control liquid drive experiment bench system for a vehicle, which is used for assisting in driving and recovering an energy accumulator.
Background
In recent years, with the improvement of living standards, the quantity of automobiles kept has been rapidly increased, which causes excessive consumption of petroleum resources and serious environmental pollution. The hydraulic hybrid power technology has the advantages of high power density, safety, reliability, small environmental pollution, high energy utilization rate and the like, and is popular among enterprises and scientific research institutions of colleges and universities. The characteristics of the hybrid power system determine that the hydraulic hybrid power technology has great application prospect in the field of medium and heavy vehicles.
The technology of hydraulic hybrid power energy-saving automobile is a new type of transmission technology, which changes the inclination angle of the swash plate of the hydraulic pump/motor so as to change the displacement to adapt to the change of load. The recovery and the reutilization of the braking kinetic energy can be effectively realized by utilizing the four-quadrant working characteristics of the hydraulic pump/motor. When the structure and performance characteristics of all parts of the hybrid electric vehicle are determined, the fuel economy and emission level of the whole vehicle depend on an energy management strategy. At present, the hybrid electric vehicle needs to be deeply researched in the aspects of how to reduce the running oil consumption of the whole vehicle to the maximum extent and reasonably manage the SOC of an energy accumulator by optimizing an energy management strategy of hydraulic driving and energy storage, so that the design of an electric control liquid drive experimental bench system of the vehicle and the research of the energy management strategy of hydraulic driving and energy storage have important theoretical significance and application value for reducing the oil consumption and the emission of the hybrid electric vehicle.
Disclosure of Invention
The invention aims to provide a vehicle electric control liquid drive experiment bench system for auxiliary driving and recovery of an energy accumulator.
The invention provides the following technical scheme: a vehicle electric control liquid drive experiment bench system for auxiliary driving and recovery of an energy accumulator comprises a main oil way, a first oil way, a second oil way and a third oil way;
the system comprises a first energy accumulator, a second energy accumulator, a flow sensor, a pressure sensor, an electric proportional motor, an inertia flywheel, a magnetic powder brake, a first torque and rotation speed sensor, an oil tank, a reversing valve, an electromagnetic overflow valve, a filter, a variable plunger pump, a motor, a second torque and rotation speed sensor, a one-way valve, a precision filter, an energy accumulator safety valve, a first two-position two-way valve and a second two-position two-way valve;
the first oil path to the third oil path are respectively connected in parallel with the main oil path;
the first energy accumulator and the second energy accumulator are respectively arranged on a first oil way and a second oil way which are connected in parallel, and the first oil way and the second oil way are respectively provided with a first two-position two-way valve and a second two-position two-way valve;
the main oil way is provided with the energy accumulator safety valve, a flow sensor, a pressure sensor, an electromagnetic overflow valve, a reversing valve and an electric proportional motor; the oil tank is arranged below the energy accumulator safety valve; the oil tank is arranged below the electromagnetic overflow valve; the reversing valve is communicated with the two oil tanks; the electric proportional motor is communicated with the oil tank and is connected with the magnetic powder brake, and an inertia flywheel is arranged between the electric proportional motor and the magnetic powder brake; the magnetic powder brake is also connected with the first torque rotating speed sensor;
the precision filter, the one-way valve, the variable plunger pump and the filter are sequentially arranged on the third oil way; the variable plunger pump is connected with the motor, and a second torque and rotating speed sensor is arranged between the variable plunger pump and the motor.
Further, the accumulator safety valve is an electromagnetic overflow valve.
Furthermore, the electromagnetic overflow valve is a pilot overflow valve.
Furthermore, stop valves are arranged at the joints of the flow sensor and the pressure sensor with the main oil way.
Furthermore, the variable plunger pump adopts a swash plate type hydraulic plunger pump.
Furthermore, the reversing valve is a three-position four-way reversing valve.
Further, the first and second accumulators are hydraulic accumulators, and the hydraulic accumulators are one or both of gravity-loaded and gas-loaded.
The invention has the beneficial effects that: the invention has the functions of energy accumulator auxiliary drive, braking energy recovery, torque and rotating speed sensing, pressure sensing, unloading safety protection, cleaning and filtering, etc. The variable plunger pump is used as a main power element, the energy accumulator is used as an auxiliary power element and an energy storage element, the inertia flywheel and the magnetic powder brake combination are used as a load, and experimental research is carried out on the vehicle hydraulic driving process and the braking energy recovery process for analyzing the energy conversion rate and the braking energy recovery rate under different experimental conditions.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention.
Detailed Description
As shown in FIG. 1, the invention provides a vehicle electric control liquid drive experiment bench system for auxiliary driving and recovery of an energy accumulator, which comprises a main oil way, a first oil way, a second oil way and a third oil way, wherein the main oil way is communicated with the first oil way;
the system comprises a first energy accumulator 101, a second energy accumulator 102, a flow sensor 2, a pressure sensor 3, an electric proportional motor 4, an inertia flywheel 5, a magnetic powder brake 6, a first torque rotating speed sensor 7, an oil tank, a reversing valve 9, an electromagnetic overflow valve 10, a filter 11, a variable plunger pump 12, a motor 13, a second torque rotating speed sensor 14, a check valve 15, a precision filter 16, an energy accumulator safety valve 17, a first two-position two-way valve 18 and a second two-position two-way valve 19;
the first oil path to the third oil path are respectively connected in parallel with the main oil path;
the first energy accumulator 101 and the second energy accumulator 102 are respectively arranged on a first oil path and a second oil path which are connected in parallel, and the first oil path and the second oil path are respectively provided with a first two-position two-way valve 18 and a second two-position two-way valve 19;
the main oil circuit is provided with an energy accumulator safety valve 17, a flow sensor 2, a pressure sensor 3, an electromagnetic overflow valve 10, a reversing valve 9 and an electric proportional motor 4; a seventh oil tank 807 is arranged below the accumulator safety valve 17; a sixth oil tank 806 is arranged below the electromagnetic overflow valve 10; the reversing valve 9 is communicated with the second oil tank 802 and the third oil tank 803; the electric proportional motor 4 is communicated with the first oil tank 801 and is connected with the magnetic powder brake 6, and an inertia flywheel 5 is arranged between the electric proportional motor 4 and the magnetic powder brake 6; the magnetic powder brake 6 is also connected with a first torque rotating speed sensor 7;
the precision filter 16, the one-way valve 15, the variable plunger pump 12 and the filter 11 are sequentially arranged on the third oil path; the variable displacement plunger pump 12 is connected with the motor 13, and a second torque and rotating speed sensor 14 is arranged between the variable displacement plunger pump 12 and the motor 13.
The accumulator relief valve 17 may employ an electromagnetic spill valve.
The electromagnetic spill valve 10 is a pilot-type spill valve.
And stop valves are arranged at the joints of the flow sensor 2 and the pressure sensor 3 with the main oil way.
The variable displacement plunger pump 12 is a swash plate type hydraulic plunger pump.
The change valve 9 is a three-position four-way change valve.
The first and second accumulators 101, 102 are hydraulic accumulators, and may be either or both of gravity-charged and gas-charged.
The operation process of the system is as follows:
installing each component according to the connection relation through an oil way, and checking the system and preparing an experiment after the installation is finished;
secondly, a maximum pressure value is set for the whole system through an energy accumulator safety valve 17, and the motor 13 is started;
thirdly, the adjusting reversing valve 9 is arranged at the working valve port II, so that the electric proportional motor 4 works under the working condition of a hydraulic motor, at the moment, the motor 13 and the variable plunger pump 12 serve as main power elements to supply power to the electric proportional motor 4, and meanwhile, the first two-position two-way valve 18 and the second two-position two-way valve 19 are opened timely according to the actual situation requirements, so that the first energy accumulator 101 and the second energy accumulator 102 are driven in an auxiliary mode, and the inertia flywheel 5 is driven to rotate;
fourthly, the adjusting reversing valve 9 is arranged at the working valve port I, so that the electric proportional motor 4 works under the working condition of a hydraulic pump, at the moment, the motor 13 is stopped, the first two-position two-way valve 18 and the second two-position two-way valve 19 are opened, the electric proportional motor 4 continuously charges energy to the first energy accumulator 101 and the second energy accumulator 102 until the inertia flywheel 5 is completely stopped, and redundant energy flows to an oil tank through the energy accumulator safety valve 17;
an output shaft of the electric proportional motor 4 is connected with the inertia flywheel 5, the inertia flywheel 5 is equivalent to the rotational inertia of the vehicle, the load state of the vehicle can be simulated and changed by changing the rotational inertia of the inertia flywheel 5, and the electric proportional motor 4 drives the inertia flywheel 5 to rotate;
sixthly, the magnetic powder brake 6 is used for simulating the running resistance of the vehicle on a real-time road surface, the extra loading torque is used for simulating the braking torque of a friction braking system of the original vehicle, the system pressure value is changed by adjusting the electromagnetic overflow valve 10, the state of the system is monitored in real time through the flow sensor 2, the pressure sensor 3, the first torque rotating speed sensor 7 and the second torque rotating speed sensor 14, and the state data of the system during the system experiment is obtained;
and (seventhly), the energy conversion rate and the braking energy recovery rate of the system under different experimental conditions are obtained through later-stage data processing.
The invention has the functions of energy accumulator auxiliary drive, braking energy recovery, torque and rotating speed sensing, pressure sensing, unloading safety protection, cleaning and filtering, etc. The vehicle electric control liquid drive experiment bench system takes a variable plunger pump as a main power element, an energy accumulator as an auxiliary power element and an energy storage element, and takes the combination of an inertia flywheel and a magnetic powder brake as a load, and performs experimental research on a vehicle hydraulic driving process and a braking energy recovery process, and is used for analyzing energy conversion rate and braking energy recovery rate under different experiment conditions.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The vehicle electric control liquid drive experiment bench system for auxiliary driving and recovery of the energy accumulator is characterized by comprising a main oil way, a first oil way, a second oil way and a third oil way;
the system comprises a first energy accumulator, a second energy accumulator, a flow sensor, a pressure sensor, an electric proportional motor, an inertia flywheel, a magnetic powder brake, a first torque and rotation speed sensor, an oil tank, a reversing valve, an electromagnetic overflow valve, a filter, a variable plunger pump, a motor, a second torque and rotation speed sensor, a one-way valve, a precision filter, an energy accumulator safety valve, a first two-position two-way valve and a second two-position two-way valve;
the first oil path to the third oil path are respectively connected in parallel with the main oil path;
the first energy accumulator and the second energy accumulator are respectively arranged on a first oil way and a second oil way which are connected in parallel, and the first oil way and the second oil way are respectively provided with a first two-position two-way valve and a second two-position two-way valve;
the main oil way is provided with the energy accumulator safety valve, a flow sensor, a pressure sensor, an electromagnetic overflow valve, a reversing valve and an electric proportional motor; the oil tank is arranged below the energy accumulator safety valve; the oil tank is arranged below the electromagnetic overflow valve; the reversing valve is communicated with the two oil tanks; the electric proportional motor is communicated with the oil tank and is connected with the magnetic powder brake, and an inertia flywheel is arranged between the electric proportional motor and the magnetic powder brake; the magnetic powder brake is also connected with the first torque rotating speed sensor;
the precision filter, the one-way valve, the variable plunger pump and the filter are sequentially arranged on the third oil way; the variable plunger pump is connected with the motor, and a second torque and rotating speed sensor is arranged between the variable plunger pump and the motor.
2. The system of claim 1 wherein said accumulator relief valve is an electromagnetic spill valve.
3. The system of claim 1 wherein said electromagnetic spill valve is a pilot-type spill valve.
4. The system of claim 1, wherein the connections of said flow sensor and pressure sensor to said main circuit are provided with shut-off valves.
5. The system of claim 1, wherein the variable displacement piston pump is a swash plate hydraulic piston pump.
6. The system of claim 1, wherein the reversing valve is a three-position, four-way reversing valve.
7. The system of claim 1, wherein the first and second accumulators are hydraulic accumulators, the hydraulic accumulators being one or both of gravity-charged and gas-charged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911080919.5A CN110645231A (en) | 2019-11-07 | 2019-11-07 | Vehicle electric control liquid drive experiment bench system for auxiliary driving and recovery of energy accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911080919.5A CN110645231A (en) | 2019-11-07 | 2019-11-07 | Vehicle electric control liquid drive experiment bench system for auxiliary driving and recovery of energy accumulator |
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| Publication Number | Publication Date |
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| CN110645231A true CN110645231A (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911080919.5A Pending CN110645231A (en) | 2019-11-07 | 2019-11-07 | Vehicle electric control liquid drive experiment bench system for auxiliary driving and recovery of energy accumulator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196842A (en) * | 2020-10-10 | 2021-01-08 | 清华大学 | Hydraulic loading safety protection device and vehicle loading test system and method |
| CN113236617A (en) * | 2021-04-02 | 2021-08-10 | 燕山大学 | Hydraulic active suspension flow control system |
-
2019
- 2019-11-07 CN CN201911080919.5A patent/CN110645231A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196842A (en) * | 2020-10-10 | 2021-01-08 | 清华大学 | Hydraulic loading safety protection device and vehicle loading test system and method |
| CN112196842B (en) * | 2020-10-10 | 2021-11-02 | 清华大学 | Hydraulic loading safety protection device and vehicle loading test system and method |
| CN113236617A (en) * | 2021-04-02 | 2021-08-10 | 燕山大学 | Hydraulic active suspension flow control system |
| CN113236617B (en) * | 2021-04-02 | 2022-02-11 | 燕山大学 | Hydraulic active suspension flow control system |
| US11813914B2 (en) | 2021-04-02 | 2023-11-14 | Yanshan University | Hydraulic active suspension flow control system |
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