CN102795092A - 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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- CN102795092A CN102795092A CN2012102727666A CN201210272766A CN102795092A CN 102795092 A CN102795092 A CN 102795092A CN 2012102727666 A CN2012102727666 A CN 2012102727666A CN 201210272766 A CN201210272766 A CN 201210272766A CN 102795092 A CN102795092 A CN 102795092A
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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
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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 actuating 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 big, has the characteristics of frequent start-stop operation, also is the preferred object of energy-saving and emission-reduction.Simultaneously, the annual snowfall phase of northern China extremely frigid zones reaches 5～6 months, and road accumulated snow has brought many inconvenience to communications and transportation.
Special-purpose snow plow in use needs through scattering Snow Agent or salt solution with the ice and snow on the melting road surface.But owing to receive the influence of external environment, its poor effect that removes the snow, and, cause the snow-melting agent use amount excessive easily, road pavement and environment cause adverse effect; Other special uses add the special-purpose snow removing machine of blowing hot wind form, then cost an arm and a leg, and complex structure, and also power consumption is big, can not satisfy energy conservation and environment protection.
Comprehensive the problems referred to above press for a kind of motor vehicle driven by mixed power that has the snow removing function efficiently, cheaply of design, and it can satisfy energy-saving and cost-reducing problem, can solve a snow removing difficult problem again.At present domestic also not relevant hydraulic hybrid power vehicles with snow removing function.
Summary of the invention
The objective of the invention is to propose a kind ofly can reduce vehicle oil consumption and have the power dividing hydraulic hybrid actuating device of snow removing function and have the vehicle of this actuating device.
For realizing above-mentioned purpose; The invention provides a kind of power dividing hydraulic hybrid actuating device; Said actuating device comprises first driver element parallel with one another and second driver element; And the central controller that links to each other with second driver element with said first driver element, said first driver element comprises driving engine, first clutch, the power takeoff that links to each other with said driving engine, the change speed gear box that links to each other with said power takeoff through said first clutch and the drive axle that links to each other with said change speed gear box; Said second driver element comprises hydraulic variable displacement pump, hydraulic accumulator, hydraulic pump motor, the torque couplings that links to each other successively; Said hydraulic variable displacement pump links to each other with said power takeoff, and said torque couplings also links to each other with drive axle with the change speed gear box of said first driver element.
Preferably, second driver element also comprises fan and second clutch, and said fan links to each other with said torque couplings through second clutch.
Further, said hydraulic accumulator also links to each other with hydraulic pump motor with said hydraulic variable displacement pump respectively through a 2/2-way change-over valve.
Further, said second driver element also comprises the oil-supplementing system with fuel tank, and said oil-supplementing system also comprises slippage pump, first check valve, second check valve and the safety valve group that is made up of three by pass valves; The oil outlet of said hydraulic variable displacement pump is connected with the oil inlet of 2/2-way change-over valve, the oil outlet of first check valve, the oil outlet of second by pass valve, the oil inlet of the 3rd by pass valve, the oil outlet of hydraulic pump motor, and the oil suction of hydraulic variable displacement pump is connected with the oil outlet of second check valve, the oil inlet of second by pass valve, the oil outlet of the 3rd by pass valve, the oil suction of hydraulic pump motor; The oil inlet of the oil inlet of first check valve, second check valve is connected with the oil inlet of first by pass valve, the oil outlet of slippage pump, and the oil outlet of first by pass valve, the oil suction of slippage pump are connected with said fuel tank.
Another object of the present invention is to provide a kind of hydraulic hybrid power vehicles with snow removing function, said hydraulic hybrid power vehicles comprises above-mentioned actuating device, and the wheel that links to each other with the drive axle of said actuating device.
Based on technique scheme, advantage of the present invention is:
Central controller of the present invention can reasonably adopt hydostatic transmission and/or mechanical drive according to running state of the vehicle, thereby improves the driving efficiency of car load, cuts down the consumption of energy; When ice and snow road, chaufeur can manually combine the fan clutch that removes the snow, vehicle to adopt pure hydostatic transmission mode, improves driveability, and the fan that removes the snow is simultaneously blowed the roadside with snow, improves snow removing efficient.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is a structural representation of the present invention;
Among the figure; Hydraulic variable displacement pump-1, hydraulic accumulator-2,2/2-way change-over valve-3, first by pass valve-4, second by pass valve-7; The 3rd by pass valve-8, slippage pump-5, 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.
The specific embodiment
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Participate in Fig. 1; The preferred embodiment of a kind of power dividing hydraulic hybrid of the present invention shown in it actuating device; Said actuating device comprises first driver element parallel with one another and second driver element; And the central controller (not shown) that links to each other with second driver element with said first driver element, said first driver element comprises driving engine 19, first clutch 17, the power takeoff 18 that links to each other with said driving engine 19, the change speed gear box 16 that links to each other with said power takeoff 18 through said first clutch 17 and the drive axle 13 that links to each other with said change speed gear box 16; Said second driver element comprises hydraulic variable displacement pump 1, hydraulic accumulator 2, hydraulic pump motor 9, the torque couplings 10 that links to each other successively; Said hydraulic variable displacement pump 1 links to each other with said power takeoff 18, and said torque couplings 10 also links to each other with drive axle 13 with the change speed gear box 16 of said first driver element.Preferably, second driver element also comprises fan 11 and second clutch 12, and said fan 11 links to each other with said torque couplings 10 through second clutch 12.Be understood that to those skilled in the art in hydraulic efficiency pressure system, oil supply loop is made up of chargine line and fuel-displaced pipeline, therefore, described hydraulic variable displacement pump 1 also links to each other with said hydraulic pump motor 9, forms oil supply loop.
Preferably, said hydraulic accumulator 2 also links to each other with hydraulic pump motor 9 with said hydraulic variable displacement pump 1 respectively through a 2/2-way change-over valve 3, and is as shown in Figure 1.
Further, said second driver element also comprises the oil-supplementing system with fuel tank, and this oil-supplementing system is that the hydostatic transmission system of second driver element provides the repairing function.Said oil-supplementing system also comprises slippage pump 5, first check valve 6, second check valve 15 and the safety valve group that is made up of three by pass valves; The oil outlet of said hydraulic variable displacement pump 1 is connected with the oil inlet of 2/2-way change-over valve 3, the oil outlet of first check valve 6, the oil outlet of second by pass valve 7, the oil inlet of the 3rd by pass valve 8, the oil outlet of hydraulic pump motor 9, and the oil suction of hydraulic variable displacement pump 1 is connected with the oil outlet of second check valve 15, the oil inlet of second by pass valve 7, the oil outlet of the 3rd by pass valve 8, the oil suction of hydraulic pump motor 9; The oil inlet of the oil inlet of first check valve 6, second check valve 15 is connected with the oil inlet of first by pass valve 4, the oil outlet of slippage pump 5, and the oil suction of the oil outlet of first by pass valve 4, slippage pump 5 is connected with said fuel tank, and is as shown in Figure 1.
Particularly, second by pass valve 7, the 3rd by pass valve 8 are formed the safety valve group of the hydostatic transmission system of the present invention's second driver element, guarantee to work the closed hydraulic loop safe pressure under.For compact conformation, the present invention can be integrated in each hydraulic valve in the valve body, forms the special service valve group.Adopt the advantage of special-purpose pile-up valve to be: volume is little, in light weight; The valve body internal channel is short, degradation of energy is few; Part is few, fault rate is low.Said each hydraulic valve comprises: first check valve, 6, the second check valves 15,2/2-way change-over valve 3, first by pass valve, 4, the second by pass valves 7 and the 3rd by pass valve 8;
More specifically; Form parallel-connection structure through power takeoff 18 and torque couplings 10 between the present invention's first driver element and second driver element; Said power takeoff 18 has first output shaft and second output shaft, and torque couplings 10 has first input shaft and second input shaft.Second output shaft of power takeoff 18 is connected with the input shaft of change-speed box 16 through first clutch 17; The output shaft of change-speed box 16 is connected with second input shaft of torque couplings 10; The output shaft of hydraulic pump motor 9 is connected with first input shaft of torque couplings 10; Second output shaft of torque couplings 10 is connected with fan 11 through second clutch 12, and 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 through transmission shaft; Also formed the hydraulic hybrid power vehicles that the present invention has the snow removing function thus, as shown in Figure 1.
In other words, the present invention also provides a kind of hydraulic hybrid power vehicles with snow removing function, and this hydraulic hybrid power vehicles comprises above-mentioned actuating device, and the wheel 14 that links to each other with the drive axle 13 of said actuating device.
Through technique scheme, make driving engine of the present invention in case startup just works in best fuel-economy district all the time, unnecessary and not enough power can and provide by hydraulic accumulator 2 absorptions.Further, the present invention can be according to the situation of the required driving power of car load, the drive pattern of reasonable distribution car load.Under outfit same engine situation, can obtain bigger power output, drive efficiency is high, and oil consumption is low, can also reduce the wearing and tearing of driving engine and drg, prolongs the life-span of the very big parts of these two common maintenances.The increase of snow removing function can reduce city snow removing difficulty, solves problems such as special-purpose snow removing equipment costs an arm and a leg.Simultaneously, the present invention also has simple in structure, technology maturation, advantage such as reliability is high, and cost is lower.
Principle of work of the present invention and working process are:
Because the present invention has adopted technique scheme; The central controller (not shown) of car load reasonably adopts hydostatic transmission system (being preferably first driver element) and machine driven system (being preferably second driver element) according to running state of the vehicle; Improve the car load driving efficiency, cut down the consumption of energy; When ice and snow road, the chaufeur fan clutch (being preferably second clutch 12) that can manually combine to remove the snow, vehicle adopts pure hydostatic transmission mode, improves driveability, and the fan that removes the snow is simultaneously blowed the roadside with snow, improves snow removing efficient, and detailed process is following:
When (1) snowing; Chaufeur with fan before manually the power-transfer clutch (second clutch 12) of control combine; Power-transfer clutch (first clutch 17) before the change-speed box breaks off, and car load adopts the hydostatic transmission mode activated, and engine operation is in best fuel-economy district; Whole energy are converted into hydraulic pressure through hydraulic variable displacement pump 1 and can come powered vehicle; Hydraulic pump motor 9 can convert hydraulic pressure into mechanical energy, and a part is come powered vehicle through torque couplings 10, and another part energy removes the snow through the fan 11 that is used to remove the snow.The difference of the horsepower output of driving engine 19 and complete machine driving power, snow removing power is absorbed or compensate by hydraulic accumulator 2, and the assurance driving engine works in best fuel-economy district all the time.
(2) when the vehicle underload starts, adopt the hydostatic transmission mode activated, hydraulic pump motor 9 works in the motor operating mode, and hydraulic accumulator 2 provides high pressure fuel source, engine idle for hydraulic pump motor 9.When the pressure in the hydraulic accumulator 2 during near minimum operating pressure, driving engine 19 starts, for car load provides propulsion source.
(3) when the vehicle low cruise (for example: speed V≤25km/h); The front clutch of change-speed box (first clutch 17) breaks off; Adopt the hydostatic transmission mode activated; Driving engine 19 works in best fuel-economy district, and whole energy are converted into hydraulic pressure through hydraulic variable displacement pump 1 and can come powered vehicle, and hydraulic pump motor 9 can convert hydraulic pressure into the mechanical powered drive vehicle '.
(4) (for example: speed V >=50km/h), car load adopts full mechanical drive, and hydraulic variable displacement pump 1 is not worked with hydraulic pump motor 9, and the power-transfer clutch (first clutch 17) before the change-speed box combines, driving engine 19 independent drive vehicle ' when the vehicle high-speed cruising.
(5) when the vehicle middling speed is moved (for example: 25km/h speed V 50km/h); Car load adopts compound type of drive; Power takeoff 18 is with the power separated into two parts of driving engine 19, and a part is with mechanically operated form transmission, and another part is with the form transmission of hydostatic transmission; Torque couplings 10 is with two kinds of power be coupled stack and then powered vehicle.Hydostatic transmission and mechanically operated ratio are determined according to driving cycle and hydraulic accumulator 2 energy storage states by central controller.Central controller reasonably distributes the proportionate relationship of engine power with mechanical drive and hydostatic transmission, guarantees that engine operation is in best fuel-economy district.
(6) glancing impact, hydraulic pump motor 9 works in the pump operating mode, to hydraulic accumulator 2 feedback energies.If the maximum braking torque that hydraulic pump motor 9 provides can not satisfy the target braking torque of complete machine, friction braking system provides remaining brake torque.
High oil consumption when power dividing hydraulic hybrid type of drive of the present invention can make driving engine avoid being in vehicle launch, maximum discharge zone; In case work is just worked in best fuel-economy district, therefore can reduce the oil consumption and the exhaust emissions amount of vehicle significantly.Also have the snow removing function simultaneously, reduced the snow removing difficulty, reached the object of the invention.
Should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not to its restriction; Although with reference to preferred embodiment the present invention has been carried out detailed explanation, the those of ordinary skill in affiliated field is to be understood that: still can specific embodiments of the invention make amendment or the part technical characterictic is equal to replacement; And not breaking away from the spirit of technical scheme of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (5)
1. power dividing hydraulic hybrid actuating device; It is characterized in that: said actuating device comprises first driver element parallel with one another and second driver element; And the central controller that links to each other with second driver element with said first driver element, said first driver element comprises driving engine (19), first clutch (17), the power takeoff (18) that links to each other with said driving engine (19), the change speed gear box (16) that links to each other with said power takeoff (18) through said first clutch (17) and the drive axle (13) that links to each other with said change speed gear box (16); Said second driver element comprises hydraulic variable displacement pump (1), hydraulic accumulator (2), hydraulic pump motor (9), the torque couplings (10) that links to each other successively; Said hydraulic variable displacement pump (1) links to each other with said power takeoff (18), and said torque couplings (10) also links to each other with drive axle (13) with the change speed gear box (16) of said first driver element.
2. actuating device according to claim 1 is characterized in that: second driver element also comprises fan (11) and second clutch (12), and said fan (11) links to each other with said torque couplings (10) through second clutch (12).
3. actuating device according to claim 1 and 2 is characterized in that: said hydraulic accumulator (2) also links to each other with hydraulic pump motor (9) with said hydraulic variable displacement pump (1) respectively through a 2/2-way change-over valve (3).
4. actuating device according to claim 3; It is characterized in that: said second driver element also comprises the oil-supplementing system with fuel tank, and said oil-supplementing system also comprises slippage pump (5), first check valve (6), second check valve (15) and the safety valve group that is made up of three by pass valves; The oil outlet of said hydraulic variable displacement pump (1) is connected with the oil outlet of the oil inlet of 2/2-way change-over valve (3), first check valve (6), the oil outlet of second by pass valve (7), the oil inlet of the 3rd by pass valve (8), the oil outlet of hydraulic pump motor (9), and the oil suction of hydraulic variable displacement pump (1) is connected with the oil inlet of the oil outlet of second check valve (15), second by pass valve (7), the oil outlet of the 3rd by pass valve (8), the oil suction of hydraulic pump motor (9); The oil inlet of the oil inlet of first check valve (6), second check valve (15) is connected with the oil outlet of the oil inlet of first by pass valve (4), slippage pump (5), and the oil suction of the oil outlet of first by pass valve (4), slippage pump (5) is connected with said fuel tank.
5. hydraulic hybrid power vehicles with snow removing function, it is characterized in that: said hydraulic hybrid power vehicles comprises above-mentioned any described actuating device of claim, and the wheel (14) that links to each other with the drive axle (13) of said actuating device.
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| CN103552455A (en) * | 2013-10-18 | 2014-02-05 | 同济大学 | Mechanical transmission system for parallel connection type hydraulic hybrid vehicle |
| CN103552454A (en) * | 2013-10-16 | 2014-02-05 | 吉林大学 | Series-parallel hydraulic drive hybrid power vehicle power assembly system |
| CN103569098A (en) * | 2013-11-19 | 2014-02-12 | 中国第一汽车股份有限公司 | Hydraulic auxiliary driving and braking system and control method thereof |
| CN104590245A (en) * | 2013-10-31 | 2015-05-06 | 通用汽车环球科技运作有限责任公司 | Method and apparatus for controlling an electrically powered hydraulic pump in a powertrain system |
| CN104816621A (en) * | 2015-04-27 | 2015-08-05 | 潍柴动力股份有限公司 | Hydraulic hybrid power vehicle and hydraulic hybrid power system thereof |
| CN105691180A (en) * | 2014-12-09 | 2016-06-22 | 罗伯特·博世有限公司 | Hydraulic hybrid power system |
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| CN110997377A (en) * | 2017-06-23 | 2020-04-10 | 罗尔工业公司 | Motorized axle and vehicle equipped with such an axle |
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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 |
| CN103552455A (en) * | 2013-10-18 | 2014-02-05 | 同济大学 | Mechanical transmission system for parallel connection type hydraulic hybrid vehicle |
| CN104590245A (en) * | 2013-10-31 | 2015-05-06 | 通用汽车环球科技运作有限责任公司 | Method and apparatus for controlling an electrically powered hydraulic pump in a powertrain system |
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| CN104816621A (en) * | 2015-04-27 | 2015-08-05 | 潍柴动力股份有限公司 | Hydraulic hybrid power vehicle and hydraulic hybrid power system thereof |
| 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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| 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 |
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