CN209244979U - Double accumulator brake energy recovering systems based on hydraulic mechanical stepless gearbox - Google Patents
Double accumulator brake energy recovering systems based on hydraulic mechanical stepless gearbox Download PDFInfo
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- CN209244979U CN209244979U CN201821897143.7U CN201821897143U CN209244979U CN 209244979 U CN209244979 U CN 209244979U CN 201821897143 U CN201821897143 U CN 201821897143U CN 209244979 U CN209244979 U CN 209244979U
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Abstract
The utility model discloses a kind of double accumulator brake energy recovering systems based on hydraulic mechanical stepless gearbox, including Brake energy recovery releasing unit and hydraulic mechanical stepless gearbox, when hydraulic braking, the braking energy transmitted on driving wheel is transmitted to hydraulic motor through the transmission gear of hydraulic mechanical stepless gearbox, hydraulic motor realizes the control to severity of braking by control discharge capacity, mechanical energy is converted into hydraulic energy through hydraulic motor, hydraulic energy is transmitted to low pressure accumulator by 3-position 4-way proportion magnetic valve, two position two-way valve, is stored in low pressure accumulator；When high pressure accumulator provides energy driving vehicle traveling, hydraulic energy in high pressure accumulator is transmitted to hydraulic motor through two position two-way valve, 3-position 4-way proportion magnetic valve, hydraulic motor is in motor operating conditions at this time, it is mechanical energy by hydraulic energy transfer, mechanical energy after conversion is transmitted to hydraulic mechanical stepless gearbox, it drives vehicle to advance, by controlling the discharge capacity of hydraulic motor, realizes the control to vehicle drive force.
Description
Technical field
The utility model relates to a kind of double accumulator brake energy recovering systems based on hydraulic mechanical stepless gearbox.
Background technique
Hydraulic mechanical stepless gearbox has the characteristics that controllable variable speed, transmission power are big, transmission efficiency is high, can be effective
Improve power performance, the economy of heavy-duty truck.But truck can be faced and frequently be opened in city operating condition downward driving
Energy regenerating when braking is used for vehicle launch by the situation stopped, and becoming raising vehicle fuel is Eco-power has efficacious prescriptions
Formula, the Hydraulic Power Transmission System in hydraulic mechanical stepless gearbox are to realize that Brake energy recovery provides the foundation.But it is present, by
It is limited in technical aspect, based on the brake energy recovering system of hydraulic mechanical stepless gearbox there are Brake energy recovery rate is low,
The problems such as structure is complicated, and control is difficult to realize, it is therefore desirable to design a kind of Brake energy recovery rate height, structure is simple, and control is difficult
Spend low hydraulic mechanical stepless gearbox brake energy recovering system.
Utility model content
Double accumulation of energys based on hydraulic mechanical stepless gearbox that the technical problem to be solved by the utility model is to provide a kind of
The recycling of vehicle braking energy may be implemented in device brake energy recovering system, and has Brake energy recovery rate high, former to vehicle
Have the advantages that transmission system change is small, structure is simple, be easily achieved.
In order to solve the above technical problems, the technical solution of the utility model is: double based on hydraulic mechanical stepless gearbox
Accumulator brake energy recovering system, including Brake energy recovery releasing unit and hydraulic mechanical stepless gearbox, it is described hydraulic
It include the hydraulic speed-changing part and mechanical speed change part being arranged in parallel in mechanical stepless transmission, the hydraulic speed-changing part includes
The hydraulic pump and hydraulic motor being connected by fluid pressure line, the Brake energy recovery releasing unit are described including being connected in parallel
3-position 4-way proportion magnetic valve between hydraulic pump and the hydraulic motor is also gone here and there respectively on the 3-position 4-way proportion magnetic valve
It is associated with high pressure accumulator and low pressure accumulator, the high pressure accumulator is arranged in parallel with the low pressure accumulator, and the high pressure stores
Can be connected with high pressure two position two-way valve between device and the 3-position 4-way proportion magnetic valve, the low pressure accumulator with described three
Low pressure two position two-way valve is connected between four-way proportion magnetic valve.
As a preferred technical solution, the mechanical speed change part include with power end transmission connection power input shaft,
Transmission shaft, jackshaft and gear shift mechanism, are coaxially disposed between the power input shaft and the transmission shaft and transmission connects
Be connected to double planet wheel rows of mixing, the locked clutch for controlling the double planet wheel rows of mixing be installed on the transmission shaft, the jackshaft with
The power input shaft and the transmission shaft are arranged in parallel, and the jackshaft is sequentially connected to power output shaft.
As a preferred technical solution, the high pressure two position two-way valve and the low pressure two position two-way valve with described three four
High-pressure overflow valve is connected between logical proportion magnetic valve.
By adopting the above-described technical solution, double accumulator Brake energy recoveries system based on hydraulic mechanical stepless gearbox
It unites, including Brake energy recovery releasing unit and hydraulic mechanical stepless gearbox, includes in the hydraulic mechanical stepless gearbox
The hydraulic speed-changing part and mechanical speed change part being arranged in parallel, the hydraulic speed-changing part include the liquid being connected by fluid pressure line
Press pump and hydraulic motor, the Brake energy recovery releasing unit include being connected in the hydraulic pump and the hydraulic motor in parallel
Between 3-position 4-way proportion magnetic valve, be also in series with high pressure accumulator and low pressure respectively on the 3-position 4-way proportion magnetic valve
Accumulator, the high pressure accumulator are arranged in parallel with the low pressure accumulator, the high pressure accumulator and the 3-position 4-way ratio
It is connected with high pressure two position two-way valve between example solenoid valve, is connected between the low pressure accumulator and the 3-position 4-way proportion magnetic valve
It is connected to low pressure two position two-way valve；The beneficial effects of the utility model are: the Brake Energy transmitted when carrying out hydraulic braking, on driving wheel
Transmission gear of the amount through hydraulic mechanical stepless gearbox is transmitted to hydraulic motor, and hydraulic motor is realized by control discharge capacity to system
The control of fatigue resistance, mechanical energy are converted into hydraulic energy through hydraulic motor, and hydraulic energy passes through 3-position 4-way proportion magnetic valve, two two
Port valve is transmitted to low pressure accumulator, is stored in low pressure accumulator；High pressure accumulator provides energy, high when driving vehicle is advanced
Hydraulic energy in pressure accumulator is transmitted to hydraulic motor through two position two-way valve, 3-position 4-way proportion magnetic valve, at this time hydraulic motor
It is mechanical energy by hydraulic energy transfer in motor operating conditions, the mechanical energy after conversion is transmitted to hydraulic mechanical stepless gearbox, drives
Vehicle is advanced, and is locked clutch at this time and is in an off state, and by controlling the discharge capacity of hydraulic motor, is realized to vehicle drive force
Control；Hydraulic machinery stepless change of the utility model under the premise of realizing vehicle braking energy recycling energy supply, to former vehicle equipment
The change of fast device is small, and brake energy recovering system control is simple, and Brake energy recovery rate is high, and plant maintenance is simple.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Energy transmission path schematic diagram when Fig. 2 is the utility model embodiment Brake energy recovery；
Energy transmission path schematic diagram when Fig. 3 is the energy supply starting of the utility model embodiment accumulator；
In figure: 1- Brake energy recovery releasing unit；2- hydraulic mechanical stepless gearbox；3- hydraulic pump；4- hydraulic motor；
5- 3-position 4-way proportion magnetic valve；6- high pressure accumulator；7- low pressure accumulator；8- high pressure two position two-way valve；9- low pressure two two
Port valve；10- high-pressure overflow valve；11- power input shaft；12- transmission shaft；13- jackshaft；14- double planet wheel rows of mixing；15- locks clutch
Device；16- first gear pair；17- second gear pair；18- power output shaft；19- engine；The total clutch of 20-.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is further described.In the following detailed description, only pass through
Bright mode describes certain exemplary embodiments of the utility model.Undoubtedly, those skilled in the art can be with
It recognizes, it, can be with a variety of different modes to described without departing from the spirit and scope of the utility model
Embodiment is modified.Therefore, attached drawing and description are regarded as illustrative in nature, rather than the protection for limiting claim
Range.
As shown in Figure 1, double accumulator brake energy recovering systems based on hydraulic mechanical stepless gearbox, including Brake Energy
Amount recycling releasing unit 1 and hydraulic mechanical stepless gearbox 2, the interior hydraulic mechanical stepless gearbox 2 includes being arranged in parallel
Hydraulic speed-changing part and mechanical speed change part, the hydraulic speed-changing part include the hydraulic pump 3 and liquid being connected by fluid pressure line
Pressure motor 4, the Brake energy recovery releasing unit 1 include being connected in parallel between the hydraulic pump 3 and the hydraulic motor 4
3-position 4-way proportion magnetic valve 5, be also in series with high pressure accumulator 6 and low pressure respectively on the 3-position 4-way proportion magnetic valve 5
Accumulator 7, the high pressure accumulator 6 are arranged in parallel with the low pressure accumulator 7, the high pressure accumulator 6 with described three four
High pressure two position two-way valve 8, the low pressure accumulator 7 and the 3-position 4-way ratio electromagnetism are connected between logical proportion magnetic valve 5
Low pressure two position two-way valve 9 is connected between valve 5；The high pressure two position two-way valve 8 and the low pressure two position two-way valve 9 and described three
High-pressure overflow valve 10 is connected between position four-way proportion magnetic valve 5.
The mechanical speed change part include with 19 power end of engine transmission connection power input shaft 11, transmission shaft 12,
Jackshaft 13 and gear shift mechanism are coaxially disposed and are sequentially connected between the power input shaft 11 and the transmission shaft 12
There is double planet wheel rows of mixing 14, the locked clutch 15 for controlling the double planet wheel rows of mixing 14, the lock are installed on the transmission shaft 12
Dead clutch 15 is located between first gear pair 16 and second gear pair 17, for locking the double planet wheel rows of mixing 14, realizes and reduces
Purpose of the power output shaft 18 to transmission ratio between the hydraulic motor 4；The jackshaft 13 and the power input shaft 11 and
The transmission shaft 12 is arranged in parallel, the transmission connection of jackshaft 13 to power output shaft 18.
High pressure accumulator 6 described in the Brake energy recovery releasing unit 1 and the low pressure accumulator 7 can carry out dynamic
Conversion；When carrying out Brake energy recovery, the low pressure two position two-way valve 9 being connected with the low pressure accumulator 7 is opened, recycling
Braking energy be stored in the low pressure accumulator 7, carry out accumulation of energy；When carrying out braking energy release, the high pressure accumulator 6
It opens, the hydraulic motor 4 is driven to rotate.
The hydraulic pump 3 uses variable pump, and the hydraulic motor 4 uses pump/motor, when engine 19 provides energy
Amount, when vehicle is advanced, the discharge capacity (for maximum value) of pump/motor is fixed, forms variable pump-fixed displacement motor transmission system, mentions
Hydraulicdriven transmission efficiency in high hydraulic mechanical stepless gearbox 2, the high pressure accumulator 6 energize, and vehicle carries out hydraulic open
It is dynamic；When carrying out hydraulic braking, variable pump displacement control is zero, by changing the discharge capacity of pump/motor, is realized to severity of braking
Control.
The Brake energy recovery releasing unit 1 is connected in hydraulicdriven circuit, and the present embodiment includes braking energy
Recycling and accumulator energy supply two kinds of operating conditions of starting, the specific working principle is as follows:
It is illustrated in figure 2 the present embodiment and carries out energy transmission path schematic diagram when Brake energy recovery, carry out hydraulic braking
When, the total clutch 20 connecting on power input shaft 11 with engine 19 disconnects, by the power of engine 19 and speed changer
Input shaft 11 disconnects, and at this time combines locked clutch 15, and double planet wheel rows of mixing 14 can be locked, the braking energy transmitted on driving wheel
Transmission gear through hydraulic mechanical stepless gearbox 2 is transmitted to transmission shaft 12, is transmitted to pump/motor through transmission shaft 12, becomes
Pump/motor is measured by control discharge capacity, realizes the control to severity of braking, mechanical energy is converted into hydraulic energy, liquid through pump/motor
Pressure energy is transmitted to low pressure accumulator 7 by 3-position 4-way proportion magnetic valve 5, low pressure two position two-way valve 9, is stored in low pressure accumulator
In 7.
It is illustrated in figure 3 the present embodiment and carries out energy transmission path schematic diagram, high pressure accumulator 6 when accumulator energy supply starting
Energy is provided, when driving vehicle is advanced, the hydraulic energy in high pressure accumulator 6 is through high pressure two position two-way valve 8,3-position 4-way ratio electricity
Magnet valve 5 is transmitted to pump/motor, and pump/motor is in motor operating conditions at this time, is mechanical energy, conversion by hydraulic energy transfer
Mechanical energy afterwards is transmitted to the first gear pair 16 of hydraulic mechanical stepless gearbox 2 through transmission shaft 12, and it is defeated to be then passed to power
Shaft 18, driving vehicle are advanced, at this point, locked clutch 15 is in an off state, by controlling the discharge capacity of pump/motor,
Realize the control to vehicle drive force.
The utility model is stepless to the hydraulic machinery of former vehicle equipment under the premise of realizing vehicle braking energy recycling energy supply
The change of speed changer is small, and brake energy recovering system control is simple, and Brake energy recovery rate is high, and plant maintenance is simple.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (3)
1. double accumulator brake energy recovering systems based on hydraulic mechanical stepless gearbox, including Brake energy recovery release are single
Member and hydraulic mechanical stepless gearbox, the interior hydraulic mechanical stepless gearbox includes the hydraulic speed-changing part being arranged in parallel and machine
Tool variable part, the hydraulic speed-changing part include the hydraulic pump and hydraulic motor being connected by fluid pressure line, it is characterised in that:
The Brake energy recovery releasing unit includes the 3-position 4-way being connected in parallel between the hydraulic pump and the hydraulic motor
Proportion magnetic valve is also in series with high pressure accumulator and low pressure accumulator, the height on the 3-position 4-way proportion magnetic valve respectively
Pressure accumulator is arranged in parallel with the low pressure accumulator, is connected between the high pressure accumulator and the 3-position 4-way proportion magnetic valve
It is connected to high pressure two position two-way valve, low pressure two two are connected between the low pressure accumulator and the 3-position 4-way proportion magnetic valve
Port valve.
2. double accumulator brake energy recovering systems based on hydraulic mechanical stepless gearbox as described in claim 1, special
Sign is: the mechanical speed change part includes power input shaft, transmission shaft, jackshaft and the speed change with power end transmission connection
Gearshift is coaxially disposed and is sequentially connected with double planet wheel rows of mixing, the transmission between the power input shaft and the transmission shaft
Locked clutch for controlling the double planet wheel rows of mixing, the jackshaft and the power input shaft and the biography are installed on axis
Moving axis is arranged in parallel, and the jackshaft is sequentially connected to power output shaft.
3. double accumulator brake energy recovering systems based on hydraulic mechanical stepless gearbox as claimed in claim 1 or 2,
It is characterized in that: connecting between the high pressure two position two-way valve and the low pressure two position two-way valve and the 3-position 4-way proportion magnetic valve
It is connected to high-pressure overflow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821897143.7U CN209244979U (en) | 2018-11-15 | 2018-11-15 | Double accumulator brake energy recovering systems based on hydraulic mechanical stepless gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821897143.7U CN209244979U (en) | 2018-11-15 | 2018-11-15 | Double accumulator brake energy recovering systems based on hydraulic mechanical stepless gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209244979U true CN209244979U (en) | 2019-08-13 |
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ID=67528606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821897143.7U Active CN209244979U (en) | 2018-11-15 | 2018-11-15 | Double accumulator brake energy recovering systems based on hydraulic mechanical stepless gearbox |
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| CN (1) | CN209244979U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281898A (en) * | 2018-11-15 | 2019-01-29 | 山东海卓电液控制工程技术研究院 | Double accumulator brake energy recovering systems based on hydraulic mechanical stepless gearbox |
| CN112377602A (en) * | 2020-11-16 | 2021-02-19 | 重庆大学 | Control method of backflow type hydraulic mechanical stepless transmission system |
-
2018
- 2018-11-15 CN CN201821897143.7U patent/CN209244979U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281898A (en) * | 2018-11-15 | 2019-01-29 | 山东海卓电液控制工程技术研究院 | Double accumulator brake energy recovering systems based on hydraulic mechanical stepless gearbox |
| CN112377602A (en) * | 2020-11-16 | 2021-02-19 | 重庆大学 | Control method of backflow type hydraulic mechanical stepless transmission system |
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