CN102795092B - Power distribution hydraulic hybrid power drive device and vehicle - Google Patents
Power distribution hydraulic hybrid power drive device and vehicle Download PDFInfo
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- CN102795092B CN102795092B CN201210272766.6A CN201210272766A CN102795092B CN 102795092 B CN102795092 B CN 102795092B CN 201210272766 A CN201210272766 A CN 201210272766A CN 102795092 B CN102795092 B CN 102795092B
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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 invention relates to a power distribution hydraulic hybrid power drive device and a vehicle. The power distribution hydraulic hybrid power drive device comprises a first drive unit and a second drive unit connected in parallel, and a central controller connected with the first drive unit and the second drive unit, wherein the first drive unit comprises an engine, a first clutch, a force takeoff device connected with the engine, a gearbox connected with the power takeoff device through the first clutch and a drive axle connected with the gearbox; the second drive unit comprises a hydraulic variable pump, a hydraulic energy storage device, a hydraulic pump motor and a torque coupler; the hydraulic variable pump is connected with the power takeoff device; and the torque coupler is also connected with the gearbox and the drive axle of the first drive unit. According to the power distribution hydraulic hybrid power drive device, hydrostatic transmission and/or mechanical transmission can be reasonably adopted by the central controller according to the running condition of the vehicle, so that the transmission efficiency of the whole vehicle is improved and the energy consumption is reduced.
Description
Technical field
The present invention relates to a kind of driving arrangement and corresponding vehicle, particularly relate to a kind of power dividing hydraulic hybrid power driving device and vehicle.
Background technology
At present, energy shortage and problem of environmental pollution are on the rise, and the energy-saving and emission-reduction of every field are very urgent.Number of vehicles is numerous, and energy consumption is large, and having the feature of frequent start-stop operation, is also the preferred object of energy-saving and emission-reduction.Meanwhile, the northern China extremely frigid zones annual snowfall phase reaches 5 ~ 6 months, and road snow mantle brings many inconvenience to communications and transportation.
Special snow plow in use, needs by scattering Snow Agent or salt solution with the ice and snow on melting road surface.But due to the impact by external environment, its poor effect that removes the snow, and also easily cause snow-melting agent use amount excessive, road pavement and environment cause adverse effect; Other special special snow removing machines adding blowing hot wind form, then expensive, complex structure, and also power consumption is large, can not meet the requirement of energy-conserving and environment-protective.
Comprehensive the problems referred to above, in the urgent need to designing a kind of motor vehicle driven by mixed power with snow removing function of efficient, low cost, it can meet energy-saving and cost-reducing problem, can solve a snow removing difficult problem again.The domestic also not relevant hydraulic hybrid power vehicles with snow removing function at present.
Summary of the invention
The object of the invention is to propose a kind ofly can reduce vehicle oil consumption and there is the power dividing hydraulic hybrid power driving device of snow removing function and there is the vehicle of this actuating device.
For achieving the above object, the invention provides a kind of power dividing hydraulic hybrid power driving device, described actuating device comprises the first driver element parallel with one another and the second driver element, and the central controller to be connected with the second driver element with described first driver element, described first driver element comprises driving engine, first clutch, the power takeoff be connected with described driving engine, the change speed gear box be connected with described power takeoff by described first clutch and the drive axle be connected with described change speed gear box; Described second driver element comprises the hydraulic variable displacement pump, hydraulic accumulator, hydraulic pump motor, the torque couplings that are connected successively, described hydraulic variable displacement pump is connected with described power takeoff, and described torque couplings is also connected with drive axle with the change speed gear box of described first driver element.
Preferably, the second driver element also comprises fan and second clutch, and described fan is connected with described torque couplings by second clutch.
Further, described hydraulic accumulator is also connected with hydraulic pump motor with described hydraulic variable displacement pump respectively by a 2/2-way change-over valve.
Further, described second driver element also comprises the oil-supplementing system with fuel tank, the safety valve group that described oil-supplementing system also comprises slippage pump, the first check valve, the second check valve and is made up of three by pass valves; The oil outlet of the oil outlet of described hydraulic variable displacement pump and the oil inlet of 2/2-way change-over valve, the first check valve, the oil outlet of the second by pass valve, the oil inlet of the 3rd by pass valve, the oil outlet of hydraulic pump motor are connected, and the oil inlet of the oil suction of hydraulic variable displacement pump and the oil outlet of the second check valve, the second by pass valve, the oil outlet of the 3rd by pass valve, the oil suction of hydraulic pump motor are connected; The oil inlet of the first check valve, the oil inlet of the second check valve are connected with the oil inlet of the first by pass valve, the oil outlet of slippage pump, and the oil outlet of the first by pass valve, the oil suction of slippage pump are connected with described fuel tank.
Another object of the present invention is to provide a kind of hydraulic hybrid power vehicles with snow removing function, described hydraulic hybrid power vehicles comprises above-mentioned actuating device, and the wheel be connected with the drive axle of described actuating device.
Based on technique scheme, advantage of the present invention is:
Central controller of the present invention can reasonably adopt Hydrostatic drive and/or mechanical drive according to running state of the vehicle, thus improves the driving efficiency of car load, reduces energy consumption; When ice and snow road, chaufeur can manually in conjunction with snow removing fan clutch, and vehicle adopts pure Hydrostatic drive mode, improves driveability, and snow is blowed roadside by the fan that simultaneously removes the snow, and improves efficiency of cleaning snow.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the present invention;
In figure, hydraulic variable displacement pump-1, hydraulic accumulator-2,2/2-way change-over valve-3, first by pass valve-4, the second by pass valve-7,3rd by pass valve-8, slippage pump-5, the first check valve-6, the second check valve-15, hydraulic pump motor-9, torque couplings-10, fan-11, first clutch-17, second clutch-12, drive axle-13, wheel-14, change speed gear box-16, power takeoff-18 and driving engine-19.
Detailed description of the invention
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Participate in Fig. 1, the preferred embodiment of a kind of power dividing hydraulic hybrid power driving device of the present invention shown in it, described actuating device comprises the first driver element parallel with one another and the second driver element, and the central controller (not shown) to be connected with the second driver element with described first driver element, described first driver element comprises driving engine 19, first clutch 17, the power takeoff 18 be connected with described driving engine 19, the change speed gear box 16 be connected with described power takeoff 18 by described first clutch 17 and the drive axle 13 be connected with described change speed gear box 16; Described second driver element comprises the hydraulic variable displacement pump 1, hydraulic accumulator 2, hydraulic pump motor 9, the torque couplings 10 that are connected successively, described hydraulic variable displacement pump 1 is connected with described power takeoff 18, and described torque couplings 10 is also connected with drive axle 13 with the change speed gear box 16 of described first driver element.Preferably, the second driver element also comprises fan 11 and second clutch 12, and described fan 11 is connected with described torque couplings 10 by second clutch 12.Be understood that for those skilled in the art, in hydraulic efficiency pressure system, oil supply loop is made up of chargine line and outlet line, and therefore, described hydraulic variable displacement pump 1 is also connected with described hydraulic pump motor 9, forms oil supply loop.
Preferably, described hydraulic accumulator 2 is also connected with hydraulic pump motor 9 with described hydraulic variable displacement pump 1 respectively by a 2/2-way change-over valve 3, as shown in Figure 1.
Further, described second driver element also comprises the oil-supplementing system with fuel tank, and the Hydrostatic transmission that this oil-supplementing system is the second driver element provides repairing function.The safety valve group that described oil-supplementing system also comprises slippage pump 5, first check valve 6, second check valve 15 and is made up of three by pass valves; The oil outlet of the oil outlet of described hydraulic variable displacement pump 1 and the oil inlet of 2/2-way change-over valve 3, the first check valve 6, the oil outlet of the second by pass valve 7, the oil inlet of the 3rd by pass valve 8, the oil outlet of hydraulic pump motor 9 are connected, and the oil inlet of the oil suction of hydraulic variable displacement pump 1 and the oil outlet of the second check valve 15, the second by pass valve 7, the oil outlet of the 3rd by pass valve 8, the oil suction of hydraulic pump motor 9 are connected; The oil inlet of the first check valve 6, the oil inlet of the second check valve 15 are connected with the oil inlet of the first by pass valve 4, the oil outlet of slippage pump 5, and the oil outlet of the first by pass valve 4, the oil suction of slippage pump 5 are connected with described fuel tank, as shown in Figure 1.
Particularly, the second by pass valve 7, the 3rd by pass valve 8 form the safety valve group of the Hydrostatic transmission of the present invention second driver element, work under guaranteeing closed hydraulic loop safe pressure.In order to compact conformation, each hydraulic valve can be integrated in a valve body by the present invention, forms special service valve group.The advantage of employing dedicated integrated valve is: volume is little, lightweight; Valve body internal channel is short, degradation of energy is few; Part is few, failure rate is low.Each hydraulic valve described comprises: the first check valve 6, second check valve 15,2/2-way change-over valve 3, first by pass valve 4, second by pass valve 7 and the 3rd by pass valve 8;
More specifically, parallel-connection structure is formed by power takeoff 18 and torque couplings 10 between the present invention first driver element and the second driver element, described power takeoff 18 has the first output shaft and the second output shaft, and torque couplings 10 has the first input shaft and the second input shaft.Second output shaft of power takeoff 18 is connected with the input shaft of change-speed box 16 by first clutch 17, the output shaft of change-speed box 16 is connected with the second input shaft of torque couplings 10, the output shaft of hydraulic pump motor 9 is connected with the first input shaft of torque couplings 10, second output shaft of torque couplings 10 is connected with fan 11 by second clutch 12, first output shaft of torque couplings 10 is connected with the input shaft of drive axle 13, drive axle 13 is connected with wheel 14 by transmission shaft, also form the hydraulic hybrid power vehicles that the present invention has snow removing function thus, as shown in Figure 1.
In other words, present invention also offers a kind of hydraulic hybrid power vehicles with snow removing function, this hydraulic hybrid power vehicles comprises above-mentioned actuating device, and the wheel 14 be connected with the drive axle 13 of described actuating device.
By technique scheme, make driving engine of the present invention once startup just works in best fuel-economy district all the time, unnecessary and not enough power can be absorbed by hydraulic accumulator 2 and provide.Further, the present invention can according to the situation of driving power needed for car load, the drive pattern of reasonable distribution car load.Can obtain larger power stage in outfit same engine situation, drive efficiency is high, and oil consumption is low, can also reduce the wearing and tearing of driving engine and drg, extends the life-span of the very large parts of these two usual maintenances.The increase of snow removing function can reduce city snow removing difficulty, solves the problems such as special snow removing equipment is expensive.Meanwhile, it is simple that the present invention also has structure, technology maturation, the advantages such as reliability is high, and cost is lower.
Principle of work of the present invention and working process are:
Driving engine 19 is connected with the input shaft of power takeoff 18, an output shaft of power takeoff 18 and the input shaft of hydraulic variable displacement pump 1, slippage pump 5 is mechanically connected, the oil outlet of hydraulic variable displacement pump 1 and 2/2-way change-over valve 3 oil inlet, the oil outlet of the first check valve 6, the oil outlet of the second by pass valve 7, the oil inlet of the 3rd by pass valve 8, the oil outlet of hydraulic pump motor 9 connects, the oil outlet of 2/2-way change-over valve 3 is connected with the hydraulic fluid port of hydraulic accumulator 2, the oil suction of hydraulic variable displacement pump 1 and the oil outlet of the second check valve 15, the oil inlet of the second by pass valve 7, the oil outlet of the 3rd by pass valve 8, the oil suction of hydraulic pump motor 9 connects, the oil inlet of the first check valve 6, the oil inlet of the second check valve 15 and the oil inlet of the first by pass valve 4, the oil outlet of slippage pump 5 connects, the oil outlet of the first by pass valve 4, the oil suction of slippage pump 5 is connected with fuel tank, second output shaft of power takeoff 18 is connected with the input shaft of change-speed box 16 by first clutch 11, the output shaft of change-speed box 16 is connected with the second input shaft of torque couplings 10, the output shaft of hydraulic pump motor 9 is connected with the first input shaft of torque couplings 10, second output shaft of torque couplings 10 is connected with fan 11 by second clutch 12, first output shaft of torque couplings 10 is connected with the input shaft of drive axle 13, and drive axle 13 is connected with wheel 14 by transmission shaft.
Owing to present invention employs technique scheme, the central controller (not shown) of car load reasonably adopts Hydrostatic transmission (being preferably the first driver element) and machine driven system (being preferably the second driver element) according to running state of the vehicle, improve car load driving efficiency, reduce energy consumption; When ice and snow road, chaufeur manually can combine snow removing fan clutch (being preferably second clutch 12), and vehicle adopts pure Hydrostatic drive mode, improves driveability, and snow is blowed roadside by the fan that simultaneously removes the snow, and improve efficiency of cleaning snow, detailed process is as follows:
(1) when snowing, the power-transfer clutch (second clutch 12) of Non-follow control before fan combines by chaufeur, power-transfer clutch (first clutch 17) before change-speed box disconnects, car load adopts Hydrostatic drive mode activated, engine operation is in best fuel-economy district, whole energy is converted into hydraulic energy by hydraulic variable displacement pump 1 and drives vehicle, hydraulic energy is converted to mechanical energy by hydraulic pump motor 9, a part drives vehicle by torque couplings 10, and another part energy is removed the snow by the fan 11 for removing the snow.The difference of the horsepower output of driving engine 19 and machine's drive power, the power that removes the snow, is absorbed by hydraulic accumulator 2 or compensates, and ensures that driving engine works in best fuel-economy district all the time.
(2) when vehicle underload starts, adopt Hydrostatic drive mode activated, hydraulic pump motor 9 works in motor operating conditions, and hydraulic accumulator 2 provides high pressure fuel source, engine idle for hydraulic pump motor 9.When the pressure in hydraulic accumulator 2 is close to minimum operating pressure, driving engine 19 starts, for car load provides propulsion source.
(3) when vehicle low cruise (such as: speed V≤25km/h), the front clutch (first clutch 17) of change-speed box disconnects, adopt Hydrostatic drive mode activated, driving engine 19 works in best fuel-economy district, whole energy is converted into hydraulic energy by hydraulic variable displacement pump 1 and drives vehicle, and hydraulic energy is converted to mechanical energy and drives vehicle to travel by hydraulic pump motor 9.
(4) when vehicle high-speed runs (such as: speed V >=50km/h), car load adopts full mechanical drive, and hydraulic variable displacement pump 1 and hydraulic pump motor 9 do not work, and the power-transfer clutch (first clutch 17) before change-speed box combines, and driving engine 19 drives separately vehicle to travel.
(5) when vehicle middling speed is run (such as: 25km/h< speed V<50km/h), car load adopts Composite Transmission mode, the power of driving engine 19 is divided into two parts by power takeoff 18, a part is transmitted with mechanically operated form, another part is with the form transmission of Hydrostatic drive, two kinds of power are carried out coupling superposition by torque couplings 10, and then drive vehicle.Hydrostatic drive and mechanically operated ratio are determined according to driving cycle and hydraulic accumulator 2 energy storage state by central controller.Central controller reasonably distributes engine power with the proportionate relationship of mechanical drive and Hydrostatic drive, guarantees that engine operation is in best fuel-economy district.
(6), during braking, hydraulic pump motor 9 works in pump condition, to hydraulic accumulator 2 feedback energy.If the maximum braking torque that hydraulic pump motor 9 provides can not meet the target braking torque of complete machine, friction braking system provides remaining brake torque.
Power dividing hydraulic hybrid type of drive of the present invention can make driving engine avoid high oil consumption when being in vehicle launch, maximum discharge region, once work is just worked in best fuel-economy district, therefore, it is possible to significantly reduce oil consumption and the exhaust emissions amount of vehicle.Also there is snow removing function simultaneously, reduce snow removing difficulty, reach object of the present invention.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (4)
1. a power dividing hydraulic hybrid power driving device, it is characterized in that: described actuating device comprises the first driver element parallel with one another and the second driver element, and the central controller to be connected with the second driver element with described first driver element, described first driver element comprises driving engine (19), first clutch (17), the power takeoff (18) be connected with described driving engine (19), the change speed gear box (16) be connected with described power takeoff (18) by described first clutch (17) and the drive axle (13) be connected with described change speed gear box (16), described second driver element comprises the hydraulic variable displacement pump (1), hydraulic accumulator (2), hydraulic pump motor (9), the torque couplings (10) that are connected successively, described hydraulic variable displacement pump (1) is connected with described power takeoff (18), and described torque couplings (10) is also connected with drive axle (13) with the change speed gear box (16) of described first driver element, described hydraulic variable displacement pump (1) is also connected with described hydraulic pump motor (9), forms oil supply loop, described second driver element also comprises fan (11) and second clutch (12), and described fan (11) is connected with described torque couplings (10) by second clutch (12).
2. actuating device according to claim 1, is characterized in that: described hydraulic accumulator (2) is also connected with hydraulic pump motor (9) with described hydraulic variable displacement pump (1) respectively by a 2/2-way change-over valve (3).
3. actuating device according to claim 2, it is characterized in that: described second driver element also comprises the oil-supplementing system with fuel tank, the safety valve group that described oil-supplementing system also comprises slippage pump (5), the first check valve (6), the second check valve (15) and is made up of three by pass valves; The oil outlet of the oil outlet of described hydraulic variable displacement pump (1) and the oil inlet of 2/2-way change-over valve (3), the first check valve (6), the oil outlet of the second by pass valve (7), the oil inlet of the 3rd by pass valve (8), the oil outlet of hydraulic pump motor (9) are connected, and the oil inlet of the oil suction of hydraulic variable displacement pump (1) and the oil outlet of the second check valve (15), the second by pass valve (7), the oil outlet of the 3rd by pass valve (8), the oil suction of hydraulic pump motor (9) are connected; The oil inlet of the first check valve (6), the oil inlet of the second check valve (15) are connected with the oil inlet of the first by pass valve (4), the oil outlet of slippage pump (5), and the oil outlet of the first by pass valve (4), the oil suction of slippage pump (5) are connected with described fuel tank.
4. one kind has the hydraulic hybrid power vehicles of snow removing function, it is characterized in that: described hydraulic hybrid power vehicles comprises the actuating device described in above-mentioned any one claim, and the wheel (14) be connected with the drive axle (13) of described actuating device.
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| CN201210272766.6A CN102795092B (en) | 2012-08-02 | 2012-08-02 | Power distribution hydraulic hybrid power drive device and vehicle |
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| CN201210272766.6A CN102795092B (en) | 2012-08-02 | 2012-08-02 | Power distribution hydraulic hybrid power drive device and vehicle |
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| CN102795092B true CN102795092B (en) | 2015-02-18 |
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| CN103552454B (en) * | 2013-10-16 | 2016-04-06 | 吉林大学 | Series parallel type hydraulic hybrid vehicle power assembly system |
| CN103552455B (en) * | 2013-10-18 | 2016-08-10 | 同济大学 | The machine driven system of parallel-connection type hybrid power vehicle |
| US9174628B2 (en) * | 2013-10-31 | 2015-11-03 | GM Global Technology Operations LLC | Method and apparatus for controlling an electrically powered hydraulic pump in a powertrain system |
| CN103569098B (en) * | 2013-11-19 | 2016-10-26 | 中国第一汽车股份有限公司 | Hydraulic pressure process auxiliary drive and brakes and control method thereof |
| DE102014225238A1 (en) * | 2014-12-09 | 2016-06-09 | Robert Bosch Gmbh | Hydraulic hybrid system |
| CN104816621B (en) * | 2015-04-27 | 2017-07-28 | 潍柴动力股份有限公司 | Hydraulic hybrid power vehicles and its hydraulic hybrid power system |
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| CN106891711B (en) * | 2017-03-16 | 2024-01-05 | 吉林大学 | Series-parallel hydraulic hybrid power control system and control method for loader |
| CN107097764B (en) * | 2017-04-25 | 2023-09-29 | 浙江工业大学 | Vehicle hydraulic and in-wheel motor composite braking energy recovery system |
| FR3067972B1 (en) * | 2017-06-23 | 2020-01-03 | Lohr Industrie | CENTRAL MECHANICS FOR MOTORIZED VEHICLE AXLE |
| CN109649163B (en) * | 2018-12-29 | 2020-06-19 | 长沙中联重科环境产业有限公司 | Vehicle traveling system, control method thereof and sanitation vehicle |
| CN109649165B (en) * | 2018-12-29 | 2020-09-11 | 长沙中联重科环境产业有限公司 | Control system and method for compound transmission vehicle |
| CN112726479A (en) * | 2020-12-30 | 2021-04-30 | 科大讯飞股份有限公司 | Energy-saving snow and ice removing and breaking system and vehicle |
| CN113580913B (en) * | 2021-09-02 | 2023-07-18 | 浙江大学 | Series-parallel hydraulic hybrid power system |
| CN113879097B (en) * | 2021-09-15 | 2023-04-18 | 浙江大学 | Multi-mode electro-hydraulic hybrid power system |
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