CN201816448U - Tandem hydraulic-electric hybrid vehicle driving device - Google Patents
Tandem hydraulic-electric hybrid vehicle driving device Download PDFInfo
- Publication number
- CN201816448U CN201816448U CN2010202693469U CN201020269346U CN201816448U CN 201816448 U CN201816448 U CN 201816448U CN 2010202693469 U CN2010202693469 U CN 2010202693469U CN 201020269346 U CN201020269346 U CN 201020269346U CN 201816448 U CN201816448 U CN 201816448U
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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 discloses a tandem hydraulic-electric hybrid vehicle driving device, belonging to a vehicle driving system. An engine of the driving device is sequentially connected with a hydraulic variable pump and a generator, an oil outlet of the hydraulic variable pump is respectively connected with an oil port of a high-pressure hydraulic accumulator, and an oil inlet of a hydraulic pump motor, an oil suction of the hydraulic variable pump is respectively connected with the oil port of a lower-pressure hydraulic accumulator, and the oil outlet of the hydraulic pump motor, a motor is connected with one side of a rear axle through a second clutch, the hydraulic pump motor is connected with the other side of the rear axle through a first clutch, and the generator and the motor are connected with a storage battery. The driving device has the advantages that the storage battery provides average power needed by a whole vehicle, so as to ensure the battery to efficiently and smoothly work; and the hydraulic accumulator meets the high-power density needs in the starting, braking and acceleration of the vehicle. The device is simple in structure and flexible in spatial arrangement, and can enable the engine to be always in an efficient area, reduce oil consumption and exhaust emissions, and prolong the service lives of the engine and a braking system.
Description
Technical field
The utility model relates to a kind of drive system of vehicle, particularly a kind of tandem hydraulic-electro hybrid power vehicle drive unit.
Background technology
Along with vehicle population increases sharply year by year, the city vehicle of start, braking is frequent and the energy consumption and the exhaust emissions of construction machinery and equipment are serious day by day, cause huge pressure for the energy security and the environmental protection of China.The traditional combustion engine technology is very ripe, the fuel economy and the reduction discharging that improve internal-combustion engine vehicle by technology innovation are very difficult, and therefore country and automaker are with the one preferred technique of hybrid power system as minimizing fuel oil consumption and reduction discharging.In the serial mixed power vehicle, driving engine and extraneous load do not exist to be contacted directly, and can guarantee that driving engine moves in a specific operation zone relatively stablely, realizes the maximization of fuel-economy.But tandem hydostatic transmission vehicle transformation of energy link is many, and overall efficiency is not very high, and existing closed-center system is difficult to satisfy simultaneously the requirement of hybrid power high power density and high-energy-density simultaneously.The battery technology power density is little, charges and discharge big electric current difficulty, and power-supply system efficient is low, the braking energy recovery is not good, and super capacitor and fuel cell exist problems such as tangible cost and technical security.Though the hydraulic accumulator power density is big, less relatively energy density has limited the widespread use of this technology on motor vehicle driven by mixed power to a certain extent.
The utility model content
The purpose of this utility model is to provide a kind of: the tandem hydraulic-electro hybrid power vehicle drive unit that energy-saving effect is obvious, Applicable scope is extensive solves problems such as the serial mixed power vehicle whole efficiency is low, energy-saving effect is undesirable.
The purpose of this utility model is achieved in that the utility model is made up of driving engine, hydraulic variable displacement pump, high-pressure hydraulic accumulator, electrical generator, storage battery, motor, wheel, back axle, first clutch, second clutch, hydraulic pump motor and low-pressure hydraulic energy storage; Driving engine is linked in sequence with hydraulic variable displacement pump and electrical generator successively, the oil outlet of hydraulic variable displacement pump is connected with the hydraulic fluid port of high-pressure hydraulic accumulator, the oil inlet of hydraulic pump motor respectively, the oil suction of hydraulic variable displacement pump is connected with the hydraulic fluid port of low-pressure hydraulic energy storage, the oil outlet of hydraulic pump motor respectively, motor is connected with a side of back axle by second clutch, hydraulic pump motor is connected with the opposite side of back axle by first clutch, and electrical generator, motor are connected with storage battery.
Described driving engine is conventional driving engine.
Beneficial effect: owing to adopted such scheme, the engine drive hydraulic variable displacement pump provides high pressure fuel source for hydraulic pump motor, and hydraulic pump motor passes through the power-transfer clutch driving rear axle, the rear-axle drive wheel, and then drive car load.Engine drive is battery charge by the hydraulic variable displacement pump drive motor, and storage battery provides electric energy for motor, and motor passes through the power-transfer clutch driving rear axle, the rear-axle drive wheel, and then drive car load.
(1) during vehicle launch, engine idle, hydraulic accumulator and hydraulic pump motor provide driving power for vehicle.When the pressure of hydraulic accumulator during near minimum operating pressure, engine starting drives hydraulic variable displacement pump and provides high pressure fuel source for hydraulic pump motor, and then drives car load.Under this pattern, high oil consumption when making driving engine avoid low speed, maximum discharge stage, car load efficient is higher.
(2) underrun operating mode, engine operation drive hydraulic pump motor and provide driving power for vehicle in best fuel-economy district, and unnecessary power is used to drive electrical generator, and the electrical generator power transfer that driving engine is unnecessary is that power storage is in storage battery.After storage battery SOC reaches optimum Working, tail-off, motor-driven car load.Under this pattern, driving engine works in best fuel-economy district all the time.
(3) large load operation operating mode, engine operation are in best fuel-economy district, and unnecessary or not enough power is absorbed by hydraulic accumulator or provides.Motor and driving engine are not worked.Under this pattern, engine operation is in best fuel-economy district.
(4) brish acceleration or climbing operating mode, hydraulic pump motor and motor are worked simultaneously, drive car load.Under this pattern, engine operation is in best fuel-economy district, and hydraulic pump motor and machine operation are efficiently distinguished in big load, the overall efficiency height.
(5) damped condition, hydraulic pump motor work in the pump operating mode, and to the high pressure accumulator feedback energy, motor and electrical generator are not worked.If the maximum braking torque that hydraulic pump motor provides can not satisfy the target braking torque of complete machine, friction braking system provides remaining brake torque.Under this pattern, the rate of braking and the number of times of transmission brake system obviously reduce.
Braking energy percent recovery height, energy-saving effect are remarkable, and car load efficient height has reached the purpose of this utility model.
Advantage: when car load normally moved, storage battery provided car load required average power, guarantee battery-efficient, work reposefully, when hydraulic accumulator is used to satisfy the starting, braking of vehicle and acceleration to the demand of high power density.Therefore, solved the needs of problems of motor vehicle driven by mixed power to closed-center system high power density, high-energy-density, simultaneously, tandem hydraulic-electro hybrid power vehicle drive unit also has simple in structure, and spatial destribution is flexible, be convenient to formulate control policy, advantages such as technology maturation are taken into account vehicle low speed, high-speed region, make driving engine be in efficient district all the time, reduce the discharging of oil consumption and tail gas, prolonged the service life of driving engine and brake system.
Description of drawings
Fig. 1 is the structural representation of the utility model tandem hydraulic-electro hybrid power vehicle drive unit.
Among the figure, 1, driving engine; 2, hydraulic variable displacement pump; 3, high-pressure hydraulic accumulator; 4, electrical generator; 5, storage battery; 6, motor; 7, wheel; 8, back axle; 9, hydraulic pump motor; 10, first clutch; 11, second clutch; 12, low-pressure hydraulic energy storage.
The specific embodiment
Embodiment 1: the utility model comprises driving engine 1, hydraulic variable displacement pump 2, high-pressure hydraulic accumulator 3, electrical generator 4, storage battery 5, motor 6, wheel 7, back axle 8, hydraulic pump motor 9 firsts clutch 10, second clutch 11 and low-pressure hydraulic energy storage 12, driving engine 1 is connected with electrical generator with hydraulic variable displacement pump 2 successively, the oil outlet of hydraulic variable displacement pump 2 respectively with the hydraulic fluid port of high-pressure hydraulic accumulator 3, the oil inlet of hydraulic pump motor 9 connects, the oil suction of hydraulic variable displacement pump 2 respectively with the hydraulic fluid port of low-pressure hydraulic energy storage 12, the oil outlet of hydraulic pump motor 9 connects, motor 6 is connected with a side of back axle 8 by second clutch 11, hydraulic pump motor 9 is connected electrical generator 4 by first clutch 10 with the opposite side of back axle 8, motor 6 is connected with storage battery 5.
Described driving engine is conventional driving engine.
Claims (1)
1. tandem hydraulic-electro hybrid power vehicle drive unit, it is characterized in that: the utility model is made up of driving engine, hydraulic variable displacement pump, high-pressure hydraulic accumulator, electrical generator, storage battery, motor, wheel, back axle, first clutch, second clutch, hydraulic pump motor and low-pressure hydraulic energy storage; Driving engine is linked in sequence with hydraulic variable displacement pump and electrical generator successively, the oil outlet of hydraulic variable displacement pump is connected with the hydraulic fluid port of high-pressure hydraulic accumulator, the oil inlet of hydraulic pump motor respectively, the oil suction of hydraulic variable displacement pump is connected with the hydraulic fluid port of low-pressure hydraulic energy storage, the oil outlet of hydraulic pump motor respectively, motor is connected with a side of back axle by second clutch, hydraulic pump motor is connected with the opposite side of back axle by first clutch, and electrical generator, motor are connected with storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202693469U CN201816448U (en) | 2010-07-16 | 2010-07-16 | Tandem hydraulic-electric hybrid vehicle driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202693469U CN201816448U (en) | 2010-07-16 | 2010-07-16 | Tandem hydraulic-electric hybrid vehicle driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201816448U true CN201816448U (en) | 2011-05-04 |
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ID=43914414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202693469U Expired - Lifetime CN201816448U (en) | 2010-07-16 | 2010-07-16 | Tandem hydraulic-electric hybrid vehicle driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201816448U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555758A (en) * | 2012-01-20 | 2012-07-11 | 邵群生 | Liquid and electricity hybrid power system for bus |
| CN106891711A (en) * | 2017-03-16 | 2017-06-27 | 吉林大学 | Load series-parallel machine hydraulic hybrid control system and control method |
| CN107351670A (en) * | 2017-08-02 | 2017-11-17 | 李振河 | Multi-energy hybrid power energy saving vehicle |
| CN110667375A (en) * | 2019-10-29 | 2020-01-10 | 倪天新 | Hydraulic transmission device for pure electric vehicle |
| CN113650491A (en) * | 2021-09-07 | 2021-11-16 | 浙江大学 | Parallel type electro-hydraulic hybrid power system |
| CN113700686A (en) * | 2021-09-02 | 2021-11-26 | 浙江大学 | Electricity-machinery-hydraulic pressure hybrid energy storage unit |
| CN113738711A (en) * | 2021-09-02 | 2021-12-03 | 浙江大学 | Electro-hydrostatic-flywheel hybrid energy storage unit |
-
2010
- 2010-07-16 CN CN2010202693469U patent/CN201816448U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555758A (en) * | 2012-01-20 | 2012-07-11 | 邵群生 | Liquid and electricity hybrid power system for bus |
| CN106891711A (en) * | 2017-03-16 | 2017-06-27 | 吉林大学 | Load series-parallel machine hydraulic hybrid control system and control method |
| CN106891711B (en) * | 2017-03-16 | 2024-01-05 | 吉林大学 | Series-parallel hydraulic hybrid power control system and control method for loader |
| CN107351670A (en) * | 2017-08-02 | 2017-11-17 | 李振河 | Multi-energy hybrid power energy saving vehicle |
| CN110667375A (en) * | 2019-10-29 | 2020-01-10 | 倪天新 | Hydraulic transmission device for pure electric vehicle |
| CN113700686A (en) * | 2021-09-02 | 2021-11-26 | 浙江大学 | Electricity-machinery-hydraulic pressure hybrid energy storage unit |
| CN113738711A (en) * | 2021-09-02 | 2021-12-03 | 浙江大学 | Electro-hydrostatic-flywheel hybrid energy storage unit |
| CN113650491A (en) * | 2021-09-07 | 2021-11-16 | 浙江大学 | Parallel type electro-hydraulic hybrid power system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |
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| CX01 | Expiry of patent term |