CN109552040A - A kind of recovery method of rear axle of electric automobile vibrational energy - Google Patents
A kind of recovery method of rear axle of electric automobile vibrational energy Download PDFInfo
- Publication number
- CN109552040A CN109552040A CN201811608007.6A CN201811608007A CN109552040A CN 109552040 A CN109552040 A CN 109552040A CN 201811608007 A CN201811608007 A CN 201811608007A CN 109552040 A CN109552040 A CN 109552040A
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- Prior art keywords
- fluid port
- valve
- hydraulic fluid
- solenoid valve
- hydraulic
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/10—Auxiliary drives directly from oscillating movements due to vehicle running motion, e.g. suspension movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/08—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching or like movements, e.g. from the vibrations of a machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/10—Auxiliary drives directly from oscillating movements due to vehicle running motion, e.g. suspension movement
- B60K2025/103—Auxiliary drives directly from oscillating movements due to vehicle running motion, e.g. suspension movement by electric means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/10—Auxiliary drives directly from oscillating movements due to vehicle running motion, e.g. suspension movement
- B60K2025/106—Auxiliary drives directly from oscillating movements due to vehicle running motion, e.g. suspension movement by fluid means
Abstract
The present invention provides a kind of recovery methods of rear axle of electric automobile vibrational energy.Comprising steps of hydraulic cylinder floating is installed between the vehicle frame of electric car and rear axle, the rodless cavity of hydraulic cylinder is equipped with the first hydraulic fluid port, the rod chamber of hydraulic cylinder is equipped with the second hydraulic fluid port, solenoid valve valve group is connected to the first hydraulic fluid port and the second hydraulic fluid port, measurement the distance between vehicle frame and rear axle obtain range data, and setting time interval；During electric automobile during traveling, when the distance measured in time interval reduces, by controlling solenoid valve valve group, so that the hydraulic oil in rodless cavity drains into fuel tank through the first hydraulic fluid port, solenoid valve valve group and generator, when the distance measured in being spaced between increases, by controlling solenoid valve valve group, so that the hydraulic oil in rod chamber drains into fuel tank through the second hydraulic fluid port, solenoid valve valve group and generator, electrical power generators and will be in the battery of power storage to electric car are utilized.Using the recovery method in the present invention, electric energy conversion efficiency with higher.
Description
Technical field
The present invention relates to electric car field more particularly to a kind of recovery methods of rear axle of electric automobile vibrational energy.
Background technique
With the development of New-energy electric vehicle, automobile energy recycles to have obtained more and more attention.Electric car exists
In driving process, occur up and down between vehicle frame and rear axle due to being influenced will lead to by the factors such as Uneven road and automobile acceleration and deceleration
Displacement, vibrational energy can be generated；Currently, generally directly carrying out vibration damping filtering by damper, lead to this partial vibration energy
Amount is unable to get effectively recycling and utilizes；Therefore, it is necessary to which designing a kind of recovery method realizes recycling to vibrational energy.
Summary of the invention
In view of the foregoing, the present invention provides a kind of recovery methods of rear axle of electric automobile vibrational energy, realize to vibration
The recycling of energy.
To achieve the above object, the invention discloses a kind of recovery methods of rear axle of electric automobile vibrational energy, including with
Lower step:
Hydraulic cylinder is provided, the hydraulic cylinder floating is installed between the vehicle frame of electric car and rear axle, the hydraulic cylinder
Rodless cavity be equipped with the first hydraulic fluid port, the rod chamber of the hydraulic cylinder is equipped with the second hydraulic fluid port；
Solenoid valve valve group is provided, the solenoid valve valve group is connected to first hydraulic fluid port and second hydraulic fluid port, is used for
Control flow path and the direction of the hydraulic oil of first hydraulic fluid port and the hydraulic oil of second hydraulic fluid port；
It measures the distance between the vehicle frame and the rear axle and obtains range data, and setting time interval；
During electric automobile during traveling, when the distance measured in time interval reduces, by controlling the solenoid valve
Valve group, so that the hydraulic oil in the rodless cavity drains into fuel tank through the first hydraulic fluid port, solenoid valve valve group and generator, in fuel tank
Hydraulic oil sucks in the rod chamber through solenoid valve valve group and the second hydraulic fluid port, when being spaced the interior distance increase measured between, passes through
Solenoid valve valve group is controlled, so that the hydraulic oil in the rod chamber drains into fuel tank through the second hydraulic fluid port, solenoid valve valve group and generator
In, hydraulic oil in fuel tank sucks in the rodless cavity through solenoid valve valve group and the first hydraulic fluid port, utilizes electrical power generators and will be electric
It can store into the battery of electric car.
The beneficial effects of the present invention are:
(1) pass through the distance between vehicle frame and rear axle in time of measuring interval, it is ensured that the standard that solenoid valve valve group is opened
True property can improve generated energy by electrical power generators when realizing relative motion and back movement between vehicle frame and rear axle, protect
The conversion ratio of vibrational energy is demonstrate,proved, to improve the course continuation mileage of electric car.
(2) pass through the floating mount hydraulic cylinder between the vehicle frame and rear axle of electric car, it is ensured that the installation of hydraulic cylinder
Precision avoids that bias occurs, while ensure that the service life of hydraulic cylinder.
A kind of recovery method of rear axle of electric automobile vibrational energy of the present invention further improvement lies in that, the solenoid valve valve
Group includes the first two-position four-way solenoid valve and the second two-position four-way solenoid valve, and the B hydraulic fluid port of first two-position four-way solenoid valve connects
Passing through first hydraulic fluid port, the A hydraulic fluid port of second two-position four-way solenoid valve is connected to second hydraulic fluid port, and described one or two
The P hydraulic fluid port of four way solenoid valve, second two-position four-way solenoid valve P hydraulic fluid port fuel tank is connected to by the first oil pipe, described
One oil pipe be equipped with the first check valve, first check valve close to the fuel tank one end be oil inlet, the described 1st
The T hydraulic fluid port of position four-way solenoid valve, second two-position four-way solenoid valve T hydraulic fluid port fuel tank is connected to by the second oil pipe, it is described
Second oil pipe is equipped with second one-way valve, and one end close to the fuel tank of the second one-way valve is oil outlet, the second oil pipe
It is equipped with the generator, the generator is set between the second one-way valve and the fuel tank.Pass through control the one or two
The power on/off of four way solenoid valve and the second two-position four-way solenoid valve, precisely adjust hydraulic oil flows through path and direction.
A kind of recovery method of rear axle of electric automobile vibrational energy of the present invention further improvement lies in that, in time interval
The distance of measurement reduces in step, controls first two-position four-way solenoid valve and is powered, controls the second two-position four-way electromagnetism
Valve power loss.When vehicle frame and rear axle relative motion, it is powered by the first two-position four-way solenoid valve of control, the second two-position four-way solenoid valve
Power loss drives the rotating vane of generator to rotate so that the hydraulic oil in rodless cavity drains into fuel tank through generator, realizes hair
Hydraulic oil in electricity, and the fuel tank that makes sucks in rod chamber under atmospheric pressure.
A kind of recovery method of rear axle of electric automobile vibrational energy of the present invention further improvement lies in that, in time interval
The distance of measurement increases in step, controls the first two-position four-way solenoid valve power loss, controls the second two-position four-way electromagnetism
Valve is powered.When vehicle frame and rear axle back movement, by controlling the first two-position four-way solenoid valve power loss, the second two-position four-way solenoid valve
Must be electric, so that the hydraulic oil in rod chamber drains into fuel tank through generator, the rotating vane of generator is driven to rotate, realizes hair
Hydraulic oil in electricity, and the fuel tank that makes sucks in rodless cavity under atmospheric pressure.
A kind of recovery method of rear axle of electric automobile vibrational energy of the present invention further improvement lies in that, further include the first liquid
Control check valve and the second hydraulic control one-way valve, the oil inlet of first hydraulic control one-way valve are connected to the oil inlet of the second one-way valve
Mouthful, the oil outlet of first hydraulic control one-way valve is connected to first hydraulic fluid port, and the oil inlet of second hydraulic control one-way valve connects
The oil inlet of the second one-way valve is passed through, the oil outlet of second hydraulic control one-way valve is connected to second hydraulic fluid port.
A kind of recovery method of rear axle of electric automobile vibrational energy of the present invention further improvement lies in that, first hydraulic fluid port
It is equipped with the first overflow valve between the fuel tank, the second overflow valve is equipped between second hydraulic fluid port and the fuel tank.Play limit
Protective effect is pressed, avoids oil pressure is excessive hydraulic cylinder is caused to be in operation under condition of high voltage.
A kind of recovery method of rear axle of electric automobile vibrational energy of the present invention further improvement lies in that, further include that control is single
Member and the distance detection device for measuring distance between rear axle and vehicle frame, the distance detection device are installed on rear axle, institute
State control unit include single-chip microcontroller, be series at first two-position four-way solenoid valve coil S1 the first relay and series connection
In the second relay of the coil S2 of second two-position four-way solenoid valve, the single-chip microcontroller is electrically connected to the distance detection dress
It sets, the first relay and the second relay.Calculating distance in time interval by single-chip microcontroller is to increase or reduce, to control the
The power on/off of one relay and the second relay, and then realize the first two-position four-way solenoid valve and the second two-position four-way solenoid valve
Power on/off.
A kind of further improvement of recovery method of rear axle of electric automobile vibrational energy of the present invention is, in electronic vapour
In vehicle driving process step, the distance between vehicle frame and the rear axle are stated by the distance detection device measurement, and be transferred to
The single-chip microcontroller calculates the changing value of distance in time interval using the single-chip microcontroller, when the changing value is negative value, utilizes
The single-chip microcontroller controls first relay power and control second relay electric-loss, when the changing value is positive value
When, it is obtained using single-chip microcontroller control first relay electric-loss and control second relay electric.Guarantee in hydraulic cylinder
Hydraulic oil to flow through path and direction accurate, realize and realize vibrational energy while relatively or contrarily moving between vehicle frame and rear axle
Recycling.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the recovery method of rear axle of electric automobile vibrational energy of the present invention.
Fig. 2 is the schematic diagram of electric car vibration energy recovery device in the present invention.
Specific embodiment
For the benefit of to understanding of the invention, it is illustrated with reference to the accompanying drawings and embodiments.
Refering to fig. 1 with Fig. 2 it is found that the invention discloses a kind of recovery methods of rear axle of electric automobile vibrational energy, including
Following steps:
Step 101: provide hydraulic cylinder 11, by 11 floating mount of hydraulic cylinder in electric car vehicle frame 12 and rear axle 13 it
Between, the rodless cavity 111 of hydraulic cylinder 11 is equipped with the first hydraulic fluid port, and the rod chamber 112 of hydraulic cylinder 11 is equipped with the second hydraulic fluid port；
Step 102: solenoid valve valve group being provided, solenoid valve valve group is connected to the first hydraulic fluid port and the second hydraulic fluid port, for controlling
The flow path of the hydraulic oil of the hydraulic oil of first hydraulic fluid port and the second hydraulic fluid port and direction；
Step 103: measurement the distance between vehicle frame 12 and rear axle 13 obtain range data, and setting time interval；
Step 104: during electric automobile during traveling, when the distance measured in time interval reduces, passing through control electricity
Magnet valve valve group, so that the hydraulic oil in rodless cavity 111 drains into fuel tank 6 through the first hydraulic fluid port, solenoid valve valve group and generator 5, oil
Distance of the hydraulic oil through measuring in solenoid valve valve group and the second hydraulic fluid port sucking rod chamber 112, being spaced between in case 6 increases
When, by controlling solenoid valve valve group, so that the hydraulic oil in rod chamber 112 is through 5 row of the second hydraulic fluid port, solenoid valve valve group and generator
Into fuel tank 6, the hydraulic oil in fuel tank 6 using generator 5 through being sent out in solenoid valve valve group and the first hydraulic fluid port sucking rodless cavity 111
Electricity simultaneously will be in the battery of power storage to electric car.
In the present embodiment, (1) is by converting electric energy, and the electric power storage for passing through electric car through generator 5 for vibrational energy
Pond is stored, to extend the course continuation mileage of electric car；(2) real-time by being carried out to the distance between vehicle frame 12 and rear axle 13
Measurement controls solenoid valve valve group according to increasing or reducing for distance is measured in time interval, changes the first hydraulic fluid port in hydraulic cylinder 11
Flow passage route and direction with the second hydraulic fluid port hydraulic oil, during guaranteeing electric automobile during traveling, no matter vehicle frame 12 and rear axle 13
Between be relative motion or back movement can be achieved power generation, improve the conversion ratio of vibrational energy；(3) by by hydraulic cylinder 11
Floating mount, can and the degree of balance eccentric to avoid generation when the installation of hydraulic cylinder 11 between the vehicle frame 12 and rear axle 13 of electric car
The bad problem of precision reduces the abrasion of sealing element in hydraulic cylinder 11, and then guarantees the working performance of hydraulic cylinder 11, extends liquid
The service life of cylinder pressure 11.Specifically, 4 working frequency of distance detection device is f, time interval is 2-3 times of 1/f.
As shown in Fig. 2, solenoid valve valve group includes the first two-position four-way solenoid valve 21 and the second two-position four-way electricity in the present invention
Magnet valve 22, the B hydraulic fluid port of the first two-position four-way solenoid valve 21 are connected to the first hydraulic fluid port, the A hydraulic fluid port of the second two-position four-way solenoid valve 22
Be connected to the second hydraulic fluid port, the P hydraulic fluid port of the first two-position four-way solenoid valve 21, the second two-position four-way solenoid valve 22 P hydraulic fluid port pass through the
One oil pipe 31 is connected to fuel tank 6, and the first oil pipe 31 is equipped with the first check valve 23, and the one of the close fuel tank 6 of the first check valve 23
End is oil inlet, and the T hydraulic fluid port of the first two-position four-way solenoid valve 21, the T hydraulic fluid port of the second two-position four-way solenoid valve 22 are oily by second
Pipe 32 is connected to fuel tank 6, and the second oil pipe 32 is equipped with second one-way valve 24, and one end of the close fuel tank 6 of second one-way valve 24 is
Oil outlet, the second oil pipe 32 are equipped with generator 5, and generator 5 is set between second one-way valve 24 and fuel tank 6.In the present embodiment,
According to the relative displacement between vehicle frame 12 and rear axle 13, change the first two-position four-way solenoid valve 21 and the second two-position four-way electricity in real time
The power on/off of magnet valve 22 realizes the whole power generation of generator 5, with existing skill to adjust the flow direction of hydraulic oil in hydraulic cylinder 11
Compared with only generating electricity when vehicle frame 12 is with 13 relative motion of rear axle in art, the conversion ratio of vibrational energy is higher, while extending electronic
The course continuation mileage of automobile.
Further, reduce in step in the distance measured in time interval, the first two-position four-way solenoid valve 21 of control is logical
Electricity controls 22 power loss of the second two-position four-way solenoid valve.In the present embodiment, when 13 relative motion of vehicle frame 12 and rear axle, pass through control
The energization of the first two-position four-way solenoid valve 21,22 power loss of the second two-position four-way solenoid valve are made, so that the hydraulic oil in rodless cavity 111 passes through
Generator 5 drains into fuel tank 6, drives the rotating vane rotation of generator 5, realizes power generation, and the hydraulic oil in the fuel tank 6 made
It sucks in rod chamber 112 under atmospheric pressure.
Further, increase in step in the distance measured in time interval, the first two-position four-way solenoid valve 21 of control loses
Electricity, the second two-position four-way solenoid valve 22 of control are powered.In the present embodiment, when 13 back movement of vehicle frame 12 and rear axle, pass through control
Making 21 power loss of the first two-position four-way solenoid valve, the second two-position four-way solenoid valve 22 must be electric, so that the hydraulic oil in rod chamber 112 passes through
Generator 5 drains into fuel tank 6, drives the rotating vane rotation of generator 5, realizes power generation, and the hydraulic oil in the fuel tank 6 made
It sucks in rodless cavity 111 under atmospheric pressure.
It further, further include the first hydraulic control one-way valve 25 and the second hydraulic control one-way valve 26, the first hydraulic control one-way valve 25
Oil inlet is connected to the oil inlet of second one-way valve 24, and the oil outlet of the first hydraulic control one-way valve 25 is connected to the first hydraulic fluid port, and second
The oil inlet of hydraulic control one-way valve 26 is connected to the oil inlet of second one-way valve 24, and the oil outlet of the second hydraulic control one-way valve 26 is connected to
Second hydraulic fluid port.The present embodiment, when the first hydraulic fluid port is greater than the inlet pressure of second one-way valve 24, the first hydraulic control one-way valve is reversed
Conducting, when the pressure of the second hydraulic fluid port is greater than the inlet pressure of second one-way valve 24, the second hydraulic control one-way valve reverse-conducting, the
Shunting function may be implemented in one hydraulic control one-way valve and the second hydraulic control one-way valve reverse-conducting, avoids the first hydraulic fluid port or the second hydraulic fluid port pressure
Power is excessive to cause hydraulic cylinder 11, the first two-position four-way solenoid valve 21 and the second two-position four-way solenoid valve 22 to break down, and drops simultaneously
Low first two-position four-way solenoid valve 21 and the second two-position four-way solenoid valve 22 cross throttling loss when hydraulic oil, improve vibrational energy
Conversion ratio.
Further, it is equipped with the first overflow valve 27 between the first hydraulic fluid port and fuel tank 6, is equipped between the second hydraulic fluid port and fuel tank 6
Second overflow valve 28.In the present embodiment, by the first overflow valve 27 of setting and the second overflow valve 28, pressure limiting safety effect is played,
To set up the pressure of whole system, avoid system pressure is excessively high from leading to hydraulic cylinder 11, the one one two-position four-way solenoid valve and
Two two-position four-way solenoid valves 22 break down, while guaranteeing the safety during vibration energy regeneration.
It further, further include control unit and the distance detection device for measuring distance between rear axle 13 and vehicle frame 12
4, distance detection device 4 is installed on rear axle 13, and control unit includes single-chip microcontroller, is series at the first two-position four-way solenoid valve 21
The first relay of coil S1 and be series at the second two-position four-way solenoid valve 22 coil S2 the second relay, monolithic is electromechanical
It is connected in distance detection device 4, the first relay and the second relay.In the present embodiment, not by the measurement of distance detection device 4
With the distance between time interval vehicle frame 12 and rear axle 13, and single-chip microcontroller is passed to, is calculated in time interval by single-chip microcontroller
Distance is to increase or reduce, and to control the power on/off of the first relay and the second relay, realizes coil S1's and coil S2
Power on/off, and then accurately adjust hydraulic oil in whole system flows through path and direction, guarantee regardless of rear axle 13 and vehicle frame 12 it
Between be relative motion or back movement can be achieved generator 5 generate electricity, the transformation efficiency of vibrational energy is improved, with existing skill
Art, which is compared, has better adaptability and practicability.
Further, in step 104, by distance detection device 4 measure state between vehicle frame 12 and rear axle 13 away from
From, and it is transferred to single-chip microcontroller, the changing value of distance in time interval is calculated using single-chip microcontroller, when changing value is negative value, is utilized
Single-chip microcontroller is controlled the second relay electric-loss of the first relay power and control and is controlled when changing value is positive value using single-chip microcontroller
First relay electric-loss and the second relay of control obtain electric.In the present embodiment, hydraulic oil flows through path and side in hydraulic cylinder 11
To accuracy with higher.
A kind of beneficial effect of the recovery method of rear axle of electric automobile vibrational energy of the present invention includes:
1. during electric automobile during traveling, can be achieved when relatively or contrarily being moved between vehicle frame and rear axle by vibrational energy
It is converted into electric energy to store, conversion ratio with higher extends the course continuation mileage of electric car.
2. using the power on/off of single-chip microcontroller control the first two-position four-way solenoid valve and the second two-position four-way solenoid valve, Ke Yijing
Hydraulic oil flows through path and direction in quasi- adjusting whole system, it is ensured that whole in vehicle traveling process that power generation can be achieved.
3. ensure that hydraulic cylinder installation accuracy, avoid occurring eccentric, the abrasion of sealing element in reduction hydraulic cylinder, and then guarantee
The working performance of hydraulic cylinder extends the service life of hydraulic cylinder.
The above is only presently preferred embodiments of the present invention, not do limitation in any form to the present invention, although this
Invention has been disclosed in a preferred embodiment above, and however, it is not intended to limit the invention, any person skilled in the art,
In the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or are modified to
With the equivalent embodiment of variation, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention to
Any simple modification, equivalent change and modification made by upper embodiment, all of which are still within the scope of the technical scheme of the invention.
It should be noted that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The bright revealed content of book is not intended to limit the invention enforceable limit so that those skilled in the art understands and reads
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
It influences still fall in disclosed technology contents under the effect of present invention can be generated and the purpose that can reach
In the range of capable of covering.
Claims (8)
1. a kind of recovery method of rear axle of electric automobile vibrational energy, which comprises the following steps:
Hydraulic cylinder is provided, the hydraulic cylinder floating is installed between the vehicle frame of electric car and rear axle, the nothing of the hydraulic cylinder
Rod cavity is equipped with the first hydraulic fluid port, and the rod chamber of the hydraulic cylinder is equipped with the second hydraulic fluid port；
Solenoid valve valve group is provided, the solenoid valve valve group is connected to first hydraulic fluid port and second hydraulic fluid port, for controlling
The flow path of the hydraulic oil of the hydraulic oil of first hydraulic fluid port and second hydraulic fluid port and direction；
It measures the distance between the vehicle frame and the rear axle and obtains range data, and setting time interval；
During electric automobile during traveling, when the distance measured in time interval reduces, by controlling the solenoid valve valve group,
So that the hydraulic oil in the rodless cavity drains into fuel tank through the first hydraulic fluid port, solenoid valve valve group and generator, it is hydraulic in fuel tank
Oil sucks in the rod chamber through solenoid valve valve group and the second hydraulic fluid port, when being spaced the interior distance increase measured between, passes through control
Solenoid valve valve group, so that the hydraulic oil in the rod chamber drains into fuel tank through the second hydraulic fluid port, solenoid valve valve group and generator, oil
Hydraulic oil in case sucks in the rodless cavity through solenoid valve valve group and the first hydraulic fluid port, using electrical power generators and by power storage
Into the battery of electric car.
2. a kind of recovery method of rear axle of electric automobile vibrational energy according to claim 1, it is characterised in that: the electricity
Magnet valve valve group includes the first two-position four-way solenoid valve and the second two-position four-way solenoid valve, the B of first two-position four-way solenoid valve
Hydraulic fluid port is connected to first hydraulic fluid port, and the A hydraulic fluid port of second two-position four-way solenoid valve is connected to second hydraulic fluid port, and described
The P hydraulic fluid port of one two-position four-way solenoid valve, second two-position four-way solenoid valve P hydraulic fluid port fuel tank is connected to by the first oil pipe,
First oil pipe is equipped with the first check valve, and one end close to the fuel tank of first check valve is oil inlet, described
The T hydraulic fluid port of first two-position four-way solenoid valve, second two-position four-way solenoid valve T hydraulic fluid port oil is connected to by the second oil pipe
Case, second oil pipe are equipped with second one-way valve, and one end close to the fuel tank of the second one-way valve is oil outlet, the
Two oil pipes are equipped with the generator, and the generator is set between the second one-way valve and the fuel tank.
3. a kind of recovery method of rear axle of electric automobile vibrational energy according to claim 2, it is characterised in that: in the time
The distance measured in interval reduces in step, controls first two-position four-way solenoid valve and is powered, controls described two or two four
Three-way electromagnetic valve power loss.
4. a kind of recovery method of rear axle of electric automobile vibrational energy according to claim 2, it is characterised in that: in the time
The distance measured in interval increases in step, controls the first two-position four-way solenoid valve power loss, controls described two or two four
Three-way electromagnetic valve is powered.
5. a kind of recovery method of rear axle of electric automobile vibrational energy according to claim 2, it is characterised in that: further include
The oil inlet of first hydraulic control one-way valve and the second hydraulic control one-way valve, first hydraulic control one-way valve is connected to the second one-way valve
Oil inlet, the oil outlet of first hydraulic control one-way valve is connected to first hydraulic fluid port, second hydraulic control one-way valve into
Hydraulic fluid port is connected to the oil inlet of the second one-way valve, and the oil outlet of second hydraulic control one-way valve is connected to second oil
Mouthful.
6. a kind of recovery method of rear axle of electric automobile vibrational energy according to claim 2, it is characterised in that: described
It is equipped with the first overflow valve between one hydraulic fluid port and the fuel tank, the second overflow valve is equipped between second hydraulic fluid port and the fuel tank.
7. a kind of recovery method of rear axle of electric automobile vibrational energy according to claim 2, it is characterised in that: further include
Control unit and distance detection device for measuring distance between rear axle and vehicle frame, the distance detection device are installed on rear axle
On, described control unit include single-chip microcontroller, be series at first two-position four-way solenoid valve coil S1 the first relay with
And it is series at the second relay of the coil S2 of second two-position four-way solenoid valve, the single-chip microcontroller is electrically connected to the distance
Detection device, the first relay and the second relay.
8. a kind of recovery method of rear axle of electric automobile vibrational energy according to claim 7, it is characterised in that: Yu electricity
In electrical automobile driving process step, the distance between vehicle frame and the rear axle are stated by the distance detection device measurement, and pass
It is defeated by the single-chip microcontroller, the changing value of distance in time interval is calculated using the single-chip microcontroller, when the changing value is negative value,
First relay power and control second relay electric-loss are controlled using the single-chip microcontroller, when the changing value is positive
When value, obtained using single-chip microcontroller control first relay electric-loss and control second relay electric.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811608007.6A CN109552040B (en) | 2018-12-27 | 2018-12-27 | Method for recovering vibration energy of rear axle of electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811608007.6A CN109552040B (en) | 2018-12-27 | 2018-12-27 | Method for recovering vibration energy of rear axle of electric automobile |
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| CN109552040A true CN109552040A (en) | 2019-04-02 |
| CN109552040B CN109552040B (en) | 2021-05-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111959216A (en) * | 2020-07-01 | 2020-11-20 | 武汉理工大学 | Automobile energy recovery system |
| CN114619820A (en) * | 2022-02-28 | 2022-06-14 | 安徽合力股份有限公司 | Energy recovery system and method based on volume change of swing oil cylinder and heavy truck |
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| CN111959216B (en) * | 2020-07-01 | 2021-10-29 | 武汉理工大学 | Automobile energy recovery system |
| CN114619820A (en) * | 2022-02-28 | 2022-06-14 | 安徽合力股份有限公司 | Energy recovery system and method based on volume change of swing oil cylinder and heavy truck |
| CN114619820B (en) * | 2022-02-28 | 2023-12-01 | 安徽合力股份有限公司 | Energy recovery system and method based on volume change of swing oil cylinder and carrier |
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