CN201235737Y - Series connected hydraulic hybrid power transmission system energy-storage control device of public transport - Google Patents
Series connected hydraulic hybrid power transmission system energy-storage control device of public transport Download PDFInfo
- Publication number
- CN201235737Y CN201235737Y CNU2008200255068U CN200820025506U CN201235737Y CN 201235737 Y CN201235737 Y CN 201235737Y CN U2008200255068 U CNU2008200255068 U CN U2008200255068U CN 200820025506 U CN200820025506 U CN 200820025506U CN 201235737 Y CN201235737 Y CN 201235737Y
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- energy
- hydraulic
- valve
- control device
- oil inlet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
The utility model relates to an energy releasing control device of a bus series connected type hydraulic hybrid power drive system, which mainly comprises one or more than one hydraulic energy storing component. The energy releasing control device is characterized in that the hydraulic energy storing component comprises a hydraulic accumulator, an energy storing control valve, a disconnecting valve, and the like, wherein the oil inlet of the hydraulic accumulator is connected with the oil outlet of the disconnecting valve, the oil inlet of the disconnecting valve is connected with the oil outlet of the energy storing control valve, the oil inlet of the energy storing control valve is connected to a main pipeline of the drive system, and the hydraulic energy storing component is arranged on a chassis of the bus. The utilization of stored energy of the energy releasing control device can be controlled according to the requirements of the working condition of the bus running, thereby the utility model reduces the unnecessary waste, improves the recycle efficiency of the energy and has simple structure, small volume as well as convenient installation and maintenance.
Description
Technical field
The utility model relates to releasing of a kind of bus hydraulic hybrid driving system can control setup, belongs to mechanical field.
Background technology
The power drive system of bus generally is made of driving engine, change speed gear box, transmission shaft, drive axle etc., because bus rises, brakes frequently, its energy consumption and exhaust emission are bigger.Be energy savings, reduce discharging, people have designed and developed the bus of multiple hybrid power transmission system, such as electricity mixed power driving system, hydraulic hybrid driving system and an electric hydraulic pressure, an electric flywheel energy storage hybrid power transmission system etc.According to the difference of each engine installation array mode in the system, the hybrid power system of automobile can be divided into tandem and parallel.In tandem hydraulic hybrid driving system, Engine driven Hydraulic Pump, hydraulic motor/pump (secondary component) be as the driver element powered vehicle, the hydraulic accumulator stored energy.When vehicle operating, driving engine drives hydraulic pump works, and the output high pressure oil is given the secondary component that is under " HM Hydraulic Motor " operating mode, the powered vehicle operation; When car brakeing, because the effect of inertia kinetic energy drives the secondary component that is under " Hydraulic Pump " operating mode, reclaim the braking kinetic energy of vehicle, be stored in the hydraulic accumulator, in vehicle launch, acceleration and operational process, be used.In the existing tandem hydraulic hybrid driving system, the common direct connection of hydraulic accumulator is not controlled its break-make during work in hydraulic efficiency pressure system.Like this, when energy utilizes again, the hydraulic accumulator energy stored just may be disposable all or the overwhelming majority discharge, and the bus change working is frequent, take advantage of the charge material amount constantly to change, when the passenger after a little while, vehicle launch, the required drive that quickens, travels are just little, the energy that consumes is just few, otherwise the energy that consumes is just many; In addition, the running velocity of vehicle also constantly changes, when situation that the road magnitude of traffic flow greatly or is relatively stopped up, vehicle launch, acceleration and running velocity are just very slow, this moment, required drive was little, the energy that consumes is also few, if but energy stored release in the hydraulic accumulator is not controlled, some energy of storage will waste.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides the control setup that stored energy discharges in a kind of energy modulated pressure energy storage, the utilization again of stored energy during with control vehicle starting, acceleration, the utilization ratio again of raising bus parallel hydraulic hybrid power transmission system energy.
The technical scheme in the invention for solving the technical problem is: releasing of a kind of bus tandem hydraulic hybrid driving system can control setup, comprise one or more hydraulic energy-accumulating assembly, the hydraulic energy-accumulating assembly is made up of hydraulic accumulator, accumulation of energy control cock and shutoff valve; The oil inlet and outlet of described hydraulic accumulator is connected with an end hydraulic fluid port of described shutoff valve, the other end hydraulic fluid port of described shutoff valve is connected with the oil outlet of described accumulation of energy control cock, the oil inlet of described accumulation of energy control cock is connected on system's main line, and the hydraulic energy-accumulating assembly is installed on the car chassis.
The utility model compared with prior art, the beneficial effect that is produced is: simple in structure, volume is little, convenient for installation and maintenance; Energy stored can be controlled it and utilize according to the running conditions of vehicle needs, has reduced unnecessary waste, has improved the utilization ratio again of energy.
Description of drawings
Fig. 1 is the structural representation that a kind of bus hydraulic hybrid driving system is released the energy control setup.
Fig. 2 is a kind of hydraulic schematic diagram of bus tandem hydraulic hybrid driving system.
1. hydraulic accumulator 2. shutoff valves 3. accumulation of energy control cock 4. hydraulic energy-accumulating assemblies 5. reducing valves 6. variable oil cylinders 7. electrohydraulic servo valves 8. secondary components 9. constant pressure variable displacement pumps 10. by pass valves
The specific embodiment
Explain below below in conjunction with accompanying drawing 1,2 and embodiment the utility model being done.
A kind of bus tandem hydraulic hybrid driving system is released and can mainly be made up of one or more hydraulic energy-accumulating assembly 4 by control setup, and hydraulic energy-accumulating assembly 4 is made up of hydraulic accumulator 1, accumulation of energy control cock 3 and shutoff valve 2.The oil inlet and outlet of hydraulic accumulator 1 is connected with an end hydraulic fluid port of shutoff valve 2, and the other end hydraulic fluid port of shutoff valve 2 is connected with the oil outlet of accumulation of energy control cock 3, and the oil inlet of accumulation of energy control cock 3 is connected on system's main line, and hydraulic energy-accumulating assembly 4 is installed on the car chassis.
The effect of hydraulic accumulator 1 is the energy that is used to store recovery; The effect of accumulation of energy control cock 3 is the release (promptly utilizing again) that is used for modulated pressure energy storage 1 stored energy, and accumulation of energy control cock 3 can be solenoid directional control valve, electro-hydraulic reversing valve, electrohydraulic servo valve or electro-hydraulic proportional valve; The effect of shutoff valve 2 is when accumulation of energy control cock 3 is damaged maintenance, is used for closing the oil inlet and outlet of hydraulic accumulator 1, prevents that the high pressure oil that stores from flowing out.
When vehicle begins glancing impact, controller sends control signal and gives electrohydraulic servo valve 7, the motion of control variable oil cylinder 6, regulate the size of secondary component 8 swashplate angles (zero crossing), make it with the work of pump operating mode, secondary component 8 is under the effect of vehicle inertia kinetic energy, to system's feedback energy, 3 actions of control accumulation of energy control cock switch to position, a left side by meta, and energy just is stored in the hydraulic accumulator 1 like this.Because tandem hydraulic hybrid driving system is the constant pressure network system, when hydraulic accumulator 1 was oil-filled, constant pressure variable displacement pump 9 was also oil-filled to hydraulic accumulator 1 at secondary component 8, until be full of reach default pressure till.
When vehicle launch, quicken, when travelling, controller sends instruction and gives electrohydraulic servo valve 7, the swash plate zero crossing of secondary component 8 and the size of swashplate angle are regulated in the motion of control variable oil cylinder 6, make it be in the work of motor operating mode.Control accumulation of energy control cock 3 switches to right position by meta, and the high pressure oil that stores in the hydraulic accumulator 1 just discharges like this, and to secondary component 8 fuel feeding, powered vehicle is moved with constant pressure variable displacement pump 9.In the work, can take advantage of charge material amount size, arteries of communication flow situation according to vehicle, control the work of one or more hydraulic energy-accumulating assemblies 4, when vehicle take advantage of that the charge material amount is little, when the arteries of communication flow is big, the release of hydraulic accumulator stored energy in hydraulic energy-accumulating assembly of may command; When vehicle takes advantage of that the charge material amount is big, arteries of communication flow hour, the release of hydraulic accumulator stored energy in a plurality of hydraulic energy-accumulating assemblies of may command.As seen,, realized the control that energy utilizes again, thereby improved the utilization ratio again of energy by control to hydraulic accumulator 1.
Claims (2)
1, a kind of bus tandem hydraulic hybrid driving system is released and can be made up of one or more hydraulic energy-accumulating assembly (4) by control setup, it is characterized in that hydraulic energy-accumulating assembly (4) is made up of hydraulic accumulator (1), accumulation of energy control cock (3) and shutoff valve (2), the oil inlet and outlet of hydraulic accumulator (1) is connected with the oil outlet of shutoff valve (2), the oil inlet of shutoff valve (2) is connected with the oil outlet of accumulation of energy control cock (3), the oil inlet of accumulation of energy control cock (3) is connected on system's main line, and hydraulic energy-accumulating assembly (4) is installed on the car chassis.
2, a kind of bus tandem hydraulic hybrid driving system according to claim 1 is released the energy control setup, it is characterized in that described accumulation of energy control cock (3) is solenoid directional control valve or electro-hydraulic reversing valve or electrohydraulic servo valve or electro-hydraulic proportional valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200255068U CN201235737Y (en) | 2008-07-10 | 2008-07-10 | Series connected hydraulic hybrid power transmission system energy-storage control device of public transport |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200255068U CN201235737Y (en) | 2008-07-10 | 2008-07-10 | Series connected hydraulic hybrid power transmission system energy-storage control device of public transport |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201235737Y true CN201235737Y (en) | 2009-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200255068U Expired - Fee Related CN201235737Y (en) | 2008-07-10 | 2008-07-10 | Series connected hydraulic hybrid power transmission system energy-storage control device of public transport |
Country Status (1)
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| CN (1) | CN201235737Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564395A (en) * | 2016-02-29 | 2016-05-11 | 浙江吉利汽车研究院有限公司 | Series connection type hydraulic automobile regenerative braking energy recycling system |
-
2008
- 2008-07-10 CN CNU2008200255068U patent/CN201235737Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564395A (en) * | 2016-02-29 | 2016-05-11 | 浙江吉利汽车研究院有限公司 | Series connection type hydraulic automobile regenerative braking energy recycling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20100710 |