CN107010031A - The characteristic parameter matching method of key componentses in a kind of load mechanism kinetic energy reclaiming system - Google Patents
The characteristic parameter matching method of key componentses in a kind of load mechanism kinetic energy reclaiming system Download PDFInfo
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- CN107010031A CN107010031A CN201710144720.9A CN201710144720A CN107010031A CN 107010031 A CN107010031 A CN 107010031A CN 201710144720 A CN201710144720 A CN 201710144720A CN 107010031 A CN107010031 A CN 107010031A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 230000008878 coupling Effects 0.000 claims abstract description 22
- 238000010168 coupling process Methods 0.000 claims abstract description 22
- 238000005859 coupling reaction Methods 0.000 claims abstract description 22
- 230000009466 transformation Effects 0.000 claims description 12
- 238000004146 energy storage Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 description 8
- 230000001172 regenerating effect Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 208000019300 CLIPPERS Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000021930 chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
- B60K6/12—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/60—Regenerative braking
-
- 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
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
Abstract
The present invention relates to a kind of characteristic parameter matching method of key componentses in load mechanism kinetic energy reclaiming system, including the matching of parallel type hybrid dynamic hydraulic pump on loaders motor displacement, the matching of power coupler gearratio and the matching of accumulator volume；Carry out as steps described below：1st, the optional discharge capacity of hydraulic pump motor and Brake Energy reclaiming system and the coupling position of former transmission system of wheel loader are determined before parameter matching is carried out；2nd, hydraulic pump motor discharge capacity is determined；3rd, power coupler gearratio is configured；4th, the matching of accumulator volume；The present invention provides a kind of practicable and simple and easy to apply method for the key componentses parameter matching of parallel type hybrid dynamic loading machine.
Description
Technical field
The present invention relates to a kind of design method of hybrid power load mechanism kinetic energy reclaiming system, especially one kind simultaneously
The characteristic parameter matching method of key componentses, belongs to engineering machinery skill in connection formula hybrid power load mechanism kinetic energy reclaiming system
Art field.
Background technology
Engineering machinery is to use extensive class engineering construction engineering goods.With the continuous increasing of engineering machinery recoverable amount
Plus, the energy that a large amount of engineering machinery are consumed, the pollutant of discharge generate serious influence to environment.Energy-conservation, efficient work
Journey machinery new product has become the R＆D target of domestic and international project machinery.
Engineering machinery is in operation process, and the quality and inertia of carry load work device are big, and the kinetic energy in braking procedure is big absolutely
Heat energy is partially converted into, energy is not only wasted, and larger infringement can be caused to brake in frequently braking procedure, member is reduced
The part life-span.
Discharged to improve the energy saving of system and reduce, be considered as carrying out the Brake Energy of loading machine energy regenerating with again
Make profits use.The energy can so be saved, mitigate discharge, and effectively protect parts, maintenance cost is reduced, extension complete machine uses the longevity
Life.
Hybrid power loading machine can be divided into tandem, parallel and hybrid three kinds, mainly have from recovery method electrically
Formula, fluid pressure type and the electric gas/liquid pressure pressure type that both are combined.
For existing loading machine vehicle transformation more be directed to parallel type hybrid dynamic loading machine.
Patent CN204488470U proposes the hydraulic hybrid energy conserving system on a kind of loading machine, passes through hydraulic pump horse
Up to the switching between two kinds of operating modes of pump and motor, the recovery and utilization of braking energy are realized.
Patent CN201757707U, which proposes one kind, can meet hydraulic hybrid power loader multiple-energy-source dynamical system multiplexing
Condition tests the test-bed of demand.
But, the parameter for parallel type hybrid dynamic loading machine key componentses is matched, and does not have one at present simply
Easy design method.And the parameter matching of key componentses, it is directly connected to machine energy-saving effect.
The content of the invention
It is an object of the invention to provide a kind of parameter of key componentses in load mechanism kinetic energy reclaiming system
Method of completing the square, to solve the weak point in above-mentioned background technology.
The characteristic parameter matching method of key componentses in a kind of load mechanism kinetic energy reclaiming system proposed by the present invention, tool
Body step is as follows：
(1), it needs to be determined that Brake Energy reclaiming system and former transmission system of wheel loader before parameter matching is carried out
The optional discharge capacity of coupling position and hydraulic pump motor, to obtain maximum transformation space as basic principle, determines that Brake Energy is reclaimed again
Raw system and the coupling position of former transmission system of wheel loader；The optional discharge capacity of hydraulic pump motor includes：Hydraulic pump motor model system
Row and transformation space, determine to meet in selected series hydraulic pump motor and transform according to hydraulic pump motor range of models and transformation space
Space limitation maximum pump discharge, less than this maximum pump discharge discharge capacity as hydraulic pump motor optional discharge capacity；
(2) hydraulic pump motor discharge capacity, is determined：
(2.1) according to Brake Energy reclaiming system and the coupling position of former transmission system of wheel loader, speed v and system are tried to achieve
Kinetic energy reclaiming system output shaft rotating speed naDrive connection；Wherein：iaExported for Brake Energy reclaiming system
The drive connection of rotating speed and vehicle wheel vehicle speeds, naFor Brake Energy reclaiming system output shaft rotating speed, v is speed；
(2.2) the optional discharge capacity to hydraulic pump motor carries out step (2.3) to (2.5) progress matching primitives from small to large；
(2.3) allowable rotating speed of speed and hydraulic pump motor when being worked according to load mechanism kinetic energy reclaiming system,
Try to achieve the gearratio limiting value of power coupler；
Wherein：ipFor the gearratio limiting value of coupler, nmaxFor pump motor maximum (top) speed, naFor
Brake Energy reclaiming system output shaft rotating speed, iaFor the transmission of Brake Energy reclaiming system output shaft rotating speed and vehicle wheel vehicle speeds
Relation, vmaxIt is the max speed；
(2.4) according to power coupler gearratio limiting value and hydraulic pump motor discharge capacity, hydraulic pump motor is tried to achieve minimum
The brake force produced under operating pressure and its magnitude relationship with target braking force square；
Wherein：TP/MIt is the braking moment that energy-regenerating system is provided, ph is pump motor work pressure
Power, qhIt is pump motor work discharge capacity, ipIt is coupling transmission ratio, ihIt is gearratio of the coupler output shaft to wheel, ηbIt is pump horse
Up to mechanical efficiency, η0It is coupling transmission efficiency, ηTIt is transmission efficiency of the coupler output shaft to wheel；
(2.5) braking moment and the size of target braking force square produced according to hydraulic pump motor under minimum operating pressure
Relation, determines whether the hydraulic pump motor of the discharge capacity meets target braking force square；
TP/M>T, wherein：TP/MIt is the braking moment that energy-regenerating system is provided, T is target braking force square；
(2.6) when the hydraulic pump motor of optional discharge capacity is all unsatisfactory for target braking force square requirement, then target braking force is reduced
Square, then carries out matching primitives according to step (2.3) to (2.5)；
(3), power coupler gearratio is set：
(3.1) speed when being worked according to Brake Energy reclaiming system determines the gear of power coupler；
(3.1) respective notch is determined according to the allowable rotating speed of the max speed and hydraulic pump motor under each gear of power coupler
Lower power coupler gearratio；
(4), the matching of accumulator volume：
(4.1) the max speed worked according to load mechanism kinetic energy reclaiming system calculates the kinetic energy of loading machine；
(4.2) according to the energy storage of loading machine kinetic energy and accumulator under the maximum functional speed of Brake Energy reclaiming system
Ability carries out accumulator volume matching.
A kind of general principle of load mechanism kinetic energy reclaiming system core characteristic parameter matching method of the present invention is：
1. the space according to that can transform determines that the optional discharge capacity of hydraulic pump motor and Brake Energy reclaiming system are carried with original-pack
The coupling position of machine transmission system.
2. reclaimed according to Brake Energy reclaiming system and coupling position, the load mechanism kinetic energy of former transmission system of wheel loader
The max speed when regenerative system works calculates power and hydraulic pump motor allowable rotating speed calculates the maximum of coupling transmission ratio,
Then calculate braking moment that hydraulic pressure hydraulic pump motor provides and with target braking force match by moment, obtain satisfactory hydraulic fluid
Press pump motor displacement.
3. speed distribution power coupler gear when being worked according to Brake Energy reclaiming system, according to hydraulic pressure hydraulic pump
Motor allowable rotating speed matches the transmission of power coupler with the max speed that Brake Energy reclaiming system works under each gear
Than.
4. using accumulator as parallel type hybrid dynamic loading machine energy-storage travelling wave tube, according to Brake Energy reclaiming system work
The kinetic energy made under the max speed carries out accumulator volume matching.
The beneficial effects of the invention are as follows：
The present invention, by proposing a kind of matching process of load mechanism kinetic energy reclaiming system core parameter, is parallel
The research and development transformation of hybrid power loading machine provides a kind of simple and practicable method.
Brief description of the drawings
Fig. 1 is a kind of parallel type hybrid dynamic loading machine structured flowchart；
Fig. 2 is parallel type hybrid dynamic loader hydraulic hydraulic pump motor discharge capacity matching flow chart；
Fig. 3 is accumulator volume matching flow chart；
Label in figure：1-wheel；2-back axle and hub reduction gear；3-engine；4-steering pump；5-working barrel；
6-fluid torque-converter；7-planetary transmission；8-low pressure accumulator；9-EPB；10-universal drive shaft；11-accumulation of energy
Device；12-brake valve；13-power coupler；14-controller；15-hydraulic pump motor；16-friction brake；17-preceding
Bridge and hub reduction gear.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings.
Embodiment 1：
Loading machine typically has three gears, includes two gears and a gear of retrogressing of advance, and advances two grades
Speed>Reverse gear speed>One grade of speed of advance, we carry out matching in view of the situation the explanation of flow.
As shown in figure 1, wheel 1, back axle and hub reduction gear 2, engine 3, steering pump 4, working barrel 5, fluid torque-converter
6th, planetary transmission 7, low pressure accumulator 8, EPB 9, universal joint 10, accumulator 11, brake valve 12, power coupler
13rd, controller 14, pump motor 15, clipper disk brake 16, propons and hub reduction gear 17 are a kind of parallel-connection type hybrid powers
The structured flowchart of loading machine, when loading machine is normally run, the power of engine 3 is delivered separately to steering pump 4, working barrel 5 and liquid
Power torque-converters 6, planetary transmission 7 is passed to by the power of fluid torque-converter 6, then by propons and the He of hub reduction gear 17
Back axle and hub reduction gear 2 are delivered to wheel 1, so as to drive the operation of loading machine；Enter when using Brake Energy reclaiming system
During row braking, the brake force on wheel 1 is delivered to planet speed-change by propons and hub reduction gear 17 and back axle and hub reduction gear 2
Case 7, then by universal drive shaft 10, hydraulic pump motor 15 is delivered to by power coupler 13, and hydraulic pump motor 15 is by brake force
Hydraulic energy storage is converted into accumulator 11.
As shown in Fig. 2 a kind of loading machine regeneration brake system key parameter matching process of the invention, enters as steps described below
OK：
First, the position of coupler is determined according to transformation space, pump motor is primarily determined that then in conjunction with pump motor series
Displacement range (transformation space is bigger needed for discharge capacity is bigger)；
Then, calculate the coupling transmission under correspondence discharge capacity since the minimum value of tentatively selected pump motor discharge capacity and compare pole
Limit value ip, then according to coupling transmission than limiting value ip, minimum operating pressures that P1 and pump motor discharge capacity qh calculate pump motor and provide
Regenerative braking moment TP/M；
Using former car braking moment as target braking force square T by comparison, if TP/M>T, then select the pump motor of the discharge capacity
Compare i with the coupling transmission under respective conditionsp；If TP/M<T, judges whether the pump under the discharge capacity can expire under reverse gear the max speed
Foot-eye brake force, compares i if determining to select the coupling transmission under the pump motor and respective conditions of the discharge capacity if meetingpIf, nothing
Method meet just raising pump motor discharge capacity and according to before the step of carry out matching primitives；
When the pump motor of all discharge capacities can not be all met former car braking moment as target braking force square T, then will
According to the national standard braking moment of national standard braking Distance Calculation as target braking force square, then matched according to method before
Calculate.
Finally obtain pump motor discharge capacity qh, coupling transmission and compare ipWith the max speed of energy regenerating.
It needs to be determined that Brake Energy reclaiming system and the coupling of former transmission system of wheel loader before parameter matching is carried out
Position and the determination of the optional discharge capacity of hydraulic pressure hydraulic pump motor；
The space of transformation is available for loading machine with reference to selected hydraulic pump motor series, the Series Hydraulic pump horse is primarily determined that
Up to the maximum pump discharge that disclosure satisfy that transformation space, because discharge capacity and the volume of hydraulic pump motor have direct relation；
Brake Energy reclaiming system and the coupling position of former transmission system of wheel loader are determined, speed v at this moment can be learnt
With Brake Energy reclaiming system output shaft rotating speed naDrive connection：
na=iav
With reference to the corresponding allowable rotating speed n of each discharge capacity of selected series hydraulic pump motormaxThe most cart of operating mode is reclaimed with Brake Energy
Fast vmax, determine that coupling transmission compares limiting value；
With reference to limiting transmission ratio ipIt can be carried under minimum operating pressure with hydraulic pump motor discharge capacity account hydraulic pump motor
The regeneration maximum braking moment of confession；
By the regenerative braking moment under the corresponding discharge capacity tried to achieve and target braking force moment ratio compared with it is determined that meeting target braking force
The hydraulic pump motor discharge capacity of square as hydraulic pump motor discharge capacity matching result；
If the regenerative braking moment that all optional discharge capacities of hydraulic pump motor are produced can not all meet target braking force square, drop
The requirement of low target braking moment, re-starts the matching of hydraulic pump motor discharge capacity；
Target braking force square is divided into two kinds：(1) former garage car braking moment；(2) mechanical loader braking distance is made to meet national standard
The national standard braking moment of braking distance；
Determining can be by the shelves of power coupler after hydraulic pump motor discharge capacity and Brake Energy reclaiming system work operating mode
Position is allocated, and then carrying out gearratio according to the max speed of each gear and hydraulic pump motor allowable rotating speed matches；
It is determined that after Brake Energy reclaiming system work operating mode, the kinetic energy under operating mode the max speed is reclaimed according to Brake Energy
The matching of accumulator volume is carried out, as shown in Figure 3.
First, loading machine kinetic energy is calculated according to loading machine weight and speed；
Then, accumulator volume and accumulation of energy are derived according to charging pressure of accumulator, minimum operating pressures that, maximum working pressure (MWP)
The relation of device storage energy；
Finally, maneuver energy will be loaded as known conditions and obtains accumulator volume and rounding.
The example that the present invention is applied in the matching of parallel type hybrid dynamic loading machine parameter is the foregoing is only, for
For those skilled in the art, the present invention can have various modifications and variations.It is all the spirit and principles in the present invention it
Interior, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (1)
1. a kind of characteristic parameter matching method of key componentses in load mechanism kinetic energy reclaiming system, it is characterised in that specific step
It is rapid as follows：
(1), it needs to be determined that Brake Energy reclaiming system and the coupling of former transmission system of wheel loader before parameter matching is carried out
Position and the optional discharge capacity of hydraulic pump motor, to obtain maximum transformation space as basic principle, determine Brake Energy reclaiming system
The coupling position of system and former transmission system of wheel loader；The optional discharge capacity of hydraulic pump motor includes：Hydraulic pump motor range of models and
Space is transformed, determines to meet transformation space in selected series hydraulic pump motor according to hydraulic pump motor range of models and transformation space
The maximum pump discharge of limitation, less than this maximum pump discharge discharge capacity as hydraulic pump motor optional discharge capacity；
(2) hydraulic pump motor discharge capacity, is determined：
(2.1) according to Brake Energy reclaiming system and the coupling position of former transmission system of wheel loader, speed v and Brake Energy are tried to achieve
Reclaiming system output shaft rotating speed naDrive connection；
Wherein：iaFor Brake Energy reclaiming system output shaft rotating speed and the drive connection of vehicle wheel vehicle speeds, naFor Brake Energy
Reclaiming system output shaft rotating speed, v is speed；
(2.2) the optional discharge capacity to hydraulic pump motor carries out step (2.3) to (2.5) progress matching primitives from small to large；
(2.3) allowable rotating speed of speed and hydraulic pump motor when being worked according to load mechanism kinetic energy reclaiming system, is tried to achieve
The gearratio limiting value of power coupler；
Wherein：ipFor the gearratio limiting value of coupler, nmaxFor pump motor maximum (top) speed, naFor Brake Energy
Reclaiming system output shaft rotating speed, iaFor Brake Energy reclaiming system output shaft rotating speed and the drive connection of vehicle wheel vehicle speeds,
vmaxIt is the max speed；
(2.4) according to power coupler gearratio limiting value and hydraulic pump motor discharge capacity, hydraulic pump motor is tried to achieve in minimum work
The brake force produced under pressure and its magnitude relationship with target braking force square；
Wherein：TP/MIt is the braking moment that energy-regenerating system is provided, phIt is pump motor operating pressure, qhIt is
Pump motor work discharge capacity, ipIt is coupling transmission ratio, ihIt is gearratio of the coupler output shaft to wheel, ηbIt is pump motor machinery
Efficiency, η0It is coupling transmission efficiency, ηTIt is transmission efficiency of the coupler output shaft to wheel；
(2.5) braking moment produced according to hydraulic pump motor under minimum operating pressure and the size of target braking force square are closed
System, determines whether the hydraulic pump motor of the discharge capacity meets target braking force square；
TP/M>T, wherein：TP/MIt is the braking moment that energy-regenerating system is provided, T is target braking force square；
(2.6) when the hydraulic pump motor of optional discharge capacity is all unsatisfactory for target braking force square requirement, then target braking force square is reduced, so
Afterwards matching primitives are carried out according to step (2.3) to (2.5)；
(3), power coupler gearratio is set：
(3.1) speed when being worked according to Brake Energy reclaiming system determines the gear of power coupler；
(3.1) determined to move under respective notch according to the allowable rotating speed of the max speed and hydraulic pump motor under each gear of power coupler
Mechanical couple gearratio；
(4), the matching of accumulator volume：
(4.1) the max speed worked according to load mechanism kinetic energy reclaiming system calculates the kinetic energy of loading machine；
(4.2) according to the energy storage capacity of loading machine kinetic energy and accumulator under the maximum functional speed of Brake Energy reclaiming system
Carry out accumulator volume matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710144720.9A CN107010031B (en) | 2017-03-13 | 2017-03-13 | The characteristic parameter matching method of key components in a kind of load mechanism kinetic energy reclaiming system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710144720.9A CN107010031B (en) | 2017-03-13 | 2017-03-13 | The characteristic parameter matching method of key components in a kind of load mechanism kinetic energy reclaiming system |
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| CN107010031A true CN107010031A (en) | 2017-08-04 |
| CN107010031B CN107010031B (en) | 2019-05-14 |
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| CN113942381A (en) * | 2021-09-15 | 2022-01-18 | 浙江大学 | Energy optimization method for hydraulic hybrid power wheel loader based on working condition mode |
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| CN111016854A (en) * | 2019-10-25 | 2020-04-17 | 中国煤炭科工集团太原研究院有限公司 | Hydraulic-mechanical combined braking system for integral explosion-proof vehicle in coal mine |
| CN111016854B (en) * | 2019-10-25 | 2021-07-06 | 中国煤炭科工集团太原研究院有限公司 | Hydraulic-mechanical combined braking system for integral explosion-proof vehicle in coal mine |
| CN111806216A (en) * | 2020-07-18 | 2020-10-23 | 太原理工大学 | Loader walking hydrostatic and mechanical hybrid driving system |
| CN113942381A (en) * | 2021-09-15 | 2022-01-18 | 浙江大学 | Energy optimization method for hydraulic hybrid power wheel loader based on working condition mode |
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