CN201333920Y - Tandem drive hydraulic mixed power driving device for buses - Google Patents
Tandem drive hydraulic mixed power driving device for buses Download PDFInfo
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- CN201333920Y CN201333920Y CNU2008202329210U CN200820232921U CN201333920Y CN 201333920 Y CN201333920 Y CN 201333920Y CN U2008202329210 U CNU2008202329210 U CN U2008202329210U CN 200820232921 U CN200820232921 U CN 200820232921U CN 201333920 Y CN201333920 Y CN 201333920Y
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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
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Abstract
The utility model relates to a tandem drive hydraulic mixed power driving device for buses, which consists of a constant pressure variable pump, a hydraulic accumulating assembly, a secondary element, a variable oil tank, an electro-hydraulic proportional valve, a front and rear bus door oil tank group, a brake oil tank and the like. The utility model is characterized in that the constant pressure variable pump is connected with an engine through a clutch; the secondary element is connected with a front axle and a rear axle of a bus through the clutch; the electro-hydraulic proportional valve and the variable oil tank are made into a whole structure, and are arranged on the secondary element; the hydraulic accumulating assembly consists of a hydraulic accumulator, an accumulating control valve and a shutoff valve; a foot valve, a brake oil tank and a back pressure valve form a brake loop; the foot valve is arranged in an operator cabin; the brake oil tank is fixed on a brake bottom plate; the front and rear bus door oil tank group is fixed on a bus body; and the constant pressure variable pump, the secondary element, the hydraulic accumulating assembly and the like are arranged on a chassis of the bus. The utility model realizes the recovery and reutilization of energy sources, can control the reutilization of the energy sources, can provide large staring and braking torque, and can provide motive power for opening or closing a front bus door and a rear bus door.
Description
Technical field
The utility model relates to a kind of bus hydraulic hybrid driving device, 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 electro-hydraulic, electricity-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.In addition, the brake transsmission device of present bus and door contact interrupter all adopt pneumatic transmission, make the car load drive mechanism very complicated.
Summary of the invention
In order to overcome the deficiency of existing bus hybrid power transmission system, the purpose of this utility model provides a kind of bus doube bridge and drives the hydraulic hybrid driving device, both can be used as hydraulic pump works by adopting, can be used as HM Hydraulic Motor work again, can realize the hydraulic motor/pump (secondary component) that hydraulic pressure energy and mechanical energy are changed mutually, and the hydraulic energy-accumulating assembly of energy modulated pressure energy storage energy storage and release reclaims and stores the braking kinetic energy of bus, start at bus, quicken, be used in the driving process, reach energy-conservation and purpose environmental protection; Simultaneously, the brake cylinder that can be car brake provides pressure oil, realizes the quick and emergency braking of vehicle; The switch that also can be forward and backward car door provides power.
The technical scheme in the invention for solving the technical problem is: a kind of bus doube bridge drives the hydraulic hybrid driving device and is made up of constant pressure variable displacement pump, hydraulic energy-accumulating assembly, secondary component, variable oil cylinder, electro-hydraulic proportional valve, reducing valve, front and back door oil cylinder group, foot valve, brake cylinder, solenoid directional control valve etc.Constant pressure variable displacement pump connects with driving engine by power-transfer clutch, and secondary component connects with the forward and backward bridging of bus respectively by power-transfer clutch, and electro-hydraulic proportional valve and variable oil cylinder are made of one and are installed in respectively on the secondary component; The hydraulic energy-accumulating assembly is made up of hydraulic accumulator, accumulation of energy control cock, shutoff valve, the oil inlet and outlet of hydraulic accumulator is connected with an end hydraulic fluid port of shutoff valve, the other end hydraulic fluid port of shutoff valve is connected with the oil outlet of accumulation of energy control cock, and the oil inlet of accumulation of energy control cock is connected on system's main line; The oil inlet of reducing valve also is connected on system's main line, and the oil outlet of reducing valve is connected with the oil inlet of electro-hydraulic proportional valve, and the oil outlet of reducing valve also is connected with the oil inlet of foot valve; Foot valve, brake cylinder, back pressure valve constitute brake circuit, the actuator port of foot valve is connected with the hydraulic fluid port of brake cylinder, the return opening of foot valve is connected with the oil inlet of back pressure valve, the oil outlet of back pressure valve is connected with hydraulic reservoir by pipeline, foot valve is installed in the operator's compartment, and brake cylinder is fixed on the back-plate; The oil outlet of reducing valve also is connected with the oil inlet of another reducing valve, the oil outlet of another reducing valve is connected with the oil inlet of solenoid directional control valve, the actuator port of solenoid directional control valve is connected into and out of hydraulic fluid port with front and back door oil cylinder group, and front and back door oil cylinder group is fixed on the car body; Constant pressure variable displacement pump, secondary component and hydraulic energy-accumulating assembly etc. are installed on the bus 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; Significantly reduced the installed power of driving engine; Hydraulic accumulator energy density height, horsepower output is big, and bigger starting, brake torque can be provided; 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; For the switch of car brakeing and car door provides power, saved change speed gear box and pneumatic actuator, simplified the drive mechanism of car load.
Description of drawings
Fig. 1 is the structural representation that a kind of bus doube bridge drives the hydraulic hybrid driving device.
Fig. 2 is the hydraulic schematic diagram that a kind of bus doube bridge drives the hydraulic hybrid driving device.
1,3,12. power-transfer clutchs, 2. constant pressure variable displacement pumps, 4,11. secondary components 5,10. variable oil cylinder 6,9. electro-hydraulic proportional valve 7. hydraulic energy-accumulating assemblies 8,16. reducing valves 13. front and back door oil cylinder groups 14. brake cylinders 15. solenoid directional control valves 17. foot valves 18. back pressure 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 doube bridge drives the hydraulic hybrid driving device and is made up of constant pressure variable displacement pump 2, hydraulic energy-accumulating assembly 7, secondary component 4 and 11, variable oil cylinder 5 and 10, electro-hydraulic proportional valve 6 and 9, reducing valve 8 and 16, front and back door oil cylinder group 13, foot valve 17, brake cylinder 14, solenoid directional control valve 15 etc.Constant pressure variable displacement pump 2 connects with driving engine by power-transfer clutch 1, and secondary component 4 connects with the bus propons by power-transfer clutch 3, and electro-hydraulic proportional valve 6 is made of one with variable oil cylinder 5 and is installed on the secondary component 4; Secondary component 11 connects with the bus back axle by power-transfer clutch 12, and electro-hydraulic proportional valve 9 is made of one with variable oil cylinder 10 and is installed on the secondary component 11; Hydraulic energy-accumulating assembly 7 is made up of hydraulic accumulator 7-1, accumulation of energy control cock 7-3, shutoff valve 7-2, the oil inlet and outlet of hydraulic accumulator 7-1 is connected with the end hydraulic fluid port of shutoff valve 7-2, the other end hydraulic fluid port of shutoff valve 7-2 is connected with the oil outlet of accumulation of energy control cock 7-3, and the oil inlet of accumulation of energy control cock 7-3 is connected on system's main line; The oil inlet of reducing valve 8 also is connected on system's main line, and the oil outlet of reducing valve 8 is connected with the oil inlet of electro-hydraulic proportional valve 6,9, and the oil outlet of reducing valve 8 also is connected with the oil inlet of foot valve 17; Foot valve 17, brake cylinder 14, back pressure valve 18 constitute brake circuit, the actuator port of foot valve 17 is connected with the hydraulic fluid port of brake cylinder 14, the return opening of foot valve 17 is connected with the oil inlet of back pressure valve 18, the oil outlet of back pressure valve 18 is connected with hydraulic reservoir by pipeline, foot valve 17 is installed in the operator's compartment, and brake cylinder 14 is fixed on the back-plate; The oil outlet of reducing valve 8 also is connected with the oil inlet of reducing valve 16, the oil outlet of reducing valve 16 is connected with the oil inlet of solenoid directional control valve 15, the actuator port of solenoid directional control valve 15 is connected into and out of hydraulic fluid port with front and back door oil cylinder group 13, and front and back door oil cylinder group 13 is fixed on the car body; Constant pressure variable displacement pump 2, secondary component 4,11 and hydraulic energy-accumulating assembly 7 etc. are installed on the bus chassis.
When vehicle begins glancing impact, controller sends control signal and gives electro-hydraulic proportional valve 6 and 9, control variable oil cylinder 5 and 10 motion, regulate secondary component 4 and 11 swashplate angles and size thereof, make it be in the work of Hydraulic Pump operating mode, close power- transfer clutch 3 and 12, secondary component 4 and 11 is under the effect of vehicle inertia kinetic energy, to system's feedback energy.Accumulation of energy control cock 7-3 in the modulated pressure accumulation of energy assembly 7, switch to position, a left side by meta, among the high pressure oil flow direction and the stores hydraulic pressure energy storage 7-1, because tandem hydraulic hybrid driving system is the constant pressure network system, at secondary component 4 and 11 when hydraulic accumulator 7-1 is oil-filled, constant pressure variable displacement pump 2 is also oil-filled to hydraulic accumulator 7-1, until be full of reach default pressure till.When secondary component 4 and 11 rotating shaft rotating speeds are reduced to setting value or the speed of a motor vehicle when dropping to than low value, chaufeur depresses foot valve 17, brake cylinder 14 actions, realize car brakeing, the response pressure of back pressure valve 18 is a bit larger tham bar pressure, and its effect is that pipeline is full of hydraulic oil between maintenance foot valve 17 and the brake cylinder 14.When automobile needs emergency braking, should step on foot valve immediately without the removal process of braking energy, realize the emergency braking of vehicle.After treating that vehicle comes to a complete stop, handle solenoid directional control valve 15, under the effect of front and back door oil cylinder group 13, open or close car door.
When vehicle launch, quicken, when travelling, controller sends control command and gives electro-hydraulic proportional valve 6 and 9, and the swash plate zero crossing of secondary component 4 and 11 and the size of swashplate angle are regulated in control variable oil cylinder 5 and 10 motion, make it be in the work of HM Hydraulic Motor operating mode, close power-transfer clutch 3 and 12.Control accumulation of energy control cock 7-3 switches to right position by meta, and the high pressure oil that stores among the hydraulic accumulator 7-1 just discharges like this, and to secondary component 4 and 11 fuel feeding, powered vehicle is travelled with constant pressure variable displacement pump 2.In the work, can take advantage of charge material amount size, road traffic condition according to vehicle, control the work of one or more hydraulic energy-accumulating assemblies 7, the charge material amount is little when taking advantage of, when moving velocity is low, can discharge hydraulic accumulator energy stored in the hydraulic energy-accumulating assembly; When take advantage of the charge material amount big, when moving velocity is high, can discharge hydraulic accumulator energy stored in a plurality of hydraulic energy-accumulating assemblies.
As seen, by the control to hydraulic accumulator, realized the control that energy utilizes again, thereby improved the utilization ratio again of energy, accumulation of energy control cock 7-3 can be solenoid directional control valve, electro-hydraulic reversing valve, electrohydraulic servo valve or electro-hydraulic proportional valve.
Claims (2)
1, a kind of bus doube bridge driving hydraulic hybrid driving device is made up of constant pressure variable displacement pump (2), hydraulic energy-accumulating assembly (7), secondary component (4,11), variable oil cylinder (5,10), electro-hydraulic proportional valve (6,9), reducing valve (8,16), front and back door oil cylinder group (13), foot valve (17), brake cylinder (14), solenoid directional control valve (15), back pressure valve (18); It is characterized in that constant pressure variable displacement pump (2) connects with driving engine by power-transfer clutch (1), secondary component (4) connects with the bus propons by power-transfer clutch (3), and electro-hydraulic proportional valve (6) is made of one with variable oil cylinder (5) and is installed on the secondary component (4); Secondary component (11) connects with the bus back axle by power-transfer clutch (12), and electro-hydraulic proportional valve (9) is made of one with variable oil cylinder (10) and is installed on the secondary component (11); Hydraulic energy-accumulating assembly (7) is made up of hydraulic accumulator (7-1), accumulation of energy control cock (7-3), shutoff valve (7-2), the oil inlet and outlet of hydraulic accumulator (7-1) is connected with an end hydraulic fluid port of shutoff valve (7-2), the other end hydraulic fluid port of shutoff valve (7-2) is connected with the oil outlet of accumulation of energy control cock (7-3), and the oil inlet of accumulation of energy control cock (7-3) is connected on system's main line; The oil inlet of reducing valve (8) also is connected on system's main line, and the oil outlet of reducing valve (8) is connected with the oil inlet of electro-hydraulic proportional valve (6,9), and the oil outlet of reducing valve (8) also is connected with the oil inlet of foot valve (17); Foot valve (17), brake cylinder (14), back pressure valve (18) constitute brake circuit, the actuator port of foot valve (17) is connected with the hydraulic fluid port of brake cylinder (14), the return opening of foot valve (17) is connected with the oil inlet of back pressure valve (18), the oil outlet of back pressure valve (18) is connected with hydraulic reservoir by pipeline, foot valve (17) is installed in the operator's compartment, and brake cylinder (14) is fixed on the back-plate; The oil outlet of reducing valve (8) also is connected with the oil inlet of reducing valve (16), the oil outlet of reducing valve (16) is connected with the oil inlet of solenoid directional control valve (15), the actuator port of solenoid directional control valve (15) is connected into and out of hydraulic fluid port with front and back door oil cylinder group (13), and front and back door oil cylinder group (13) is fixed on the car body; Constant pressure variable displacement pump (2), secondary component (4,11) are installed on the bus chassis with hydraulic energy-accumulating assembly (7).
2, a kind of bus doube bridge according to claim 1 drives the hydraulic hybrid driving device, it is characterized in that described accumulation of energy control cock (7-3) 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 |
|---|---|---|---|
| CNU2008202329210U CN201333920Y (en) | 2008-12-26 | 2008-12-26 | Tandem drive hydraulic mixed power driving device for buses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202329210U CN201333920Y (en) | 2008-12-26 | 2008-12-26 | Tandem drive hydraulic mixed power driving device for buses |
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| Publication Number | Publication Date |
|---|---|
| CN201333920Y true CN201333920Y (en) | 2009-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202329210U Expired - Fee Related CN201333920Y (en) | 2008-12-26 | 2008-12-26 | Tandem drive hydraulic mixed power driving device for buses |
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| Country | Link |
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| CN (1) | CN201333920Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821899A (en) * | 2019-11-21 | 2020-02-21 | 山东交通学院 | Energy-saving robot hydraulic moving platform |
| CN112855631A (en) * | 2021-02-03 | 2021-05-28 | 北京航空航天大学 | Hatch door actuating system |
-
2008
- 2008-12-26 CN CNU2008202329210U patent/CN201333920Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821899A (en) * | 2019-11-21 | 2020-02-21 | 山东交通学院 | Energy-saving robot hydraulic moving platform |
| CN112855631A (en) * | 2021-02-03 | 2021-05-28 | 北京航空航天大学 | Hatch door actuating system |
| CN112855631B (en) * | 2021-02-03 | 2022-04-05 | 北京航空航天大学 | Hatch door actuating 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: 20091028 Termination date: 20101226 |