CN101786447B - Braking kinetic energy regenerating hydraulic retarder for automobile - Google Patents
Braking kinetic energy regenerating hydraulic retarder for automobile Download PDFInfo
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- CN101786447B CN101786447B CN2009100456776A CN200910045677A CN101786447B CN 101786447 B CN101786447 B CN 101786447B CN 2009100456776 A CN2009100456776 A CN 2009100456776A CN 200910045677 A CN200910045677 A CN 200910045677A CN 101786447 B CN101786447 B CN 101786447B
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Abstract
The invention discloses a braking kinetic energy regenerating hydraulic retarder for an automobile. The hydraulic retarder is an oil pump and hydraulic system arranged on power takeoff windows for gearboxes of large and medium automobiles. The hydraulic retarder not only has functions of the hydraulic retarder for the automobile, but also can recycle kinetic energy to be abandoned when the automobile brakes. The hydraulic retarder is characterized in that: the hydraulic retarder is connected in parallel with main transmission of the automobile, so the hydraulic retarder is convenient to joint and separate; remarkable energy-saving effect is achieved; energy is released and more force is applied when a vehicle is started, so the working condition of an engine is improved and the emission of harmful gas is reduced; starting speed can be increased and running efficiency is improved; mechanical rigid braking is replaced by flexible hydraulic retarding, so riding comfort is improved, the service lives of vehicle braking and a braking system are prolonged, and the safety performance of the vehicle is enhanced; and conventional mature hydraulic technology and hydraulic components produced in a large scale are adopted, so the system is simple and reliable, has low manufacturing cost, and is easy to popularize and apply.
Description
Technical field:
Braking kinetic energy regenerating hydraulic retarder for automobile of the present invention, be mounted in oil pump and hydraulic efficiency pressure system on the large and medium-sized automobile gearbox power taking window, it not only possesses the function of Vehicle Hydraulic Retarder, and is about to discarded kinetic energy can reclaim automobile brake the time and utilizes.Belong to field of mechanical technique.
Background technology:
Brake system of car is one of most important system in the vehicle safety travel.Along with the development of engine technology and the improvement of road conditions, the moving velocity of automobile (kinetic energy promptly travels) has increased significantly, traditional friction disk type brake equipment more and more can not satisfy the requirement of running car, all kinds of automobiles of urban bus and hills, mountain area operation, owing to frequently or for a long time use service braking system, the brake efficiency heat fade phenomenon that the meeting appearance causes because of friction lining is overheated causes braking failure when serious, threatens traffic safety.Vehicle has also improved operation cost because of frequent brake relining and tire.In order to address this problem, various vehicle auxiliary braking systems should need and obtain to develop rapidly, and wherein hydrodynamic retarder also will become to take as the leading factor scheme at home in Europe, the United States.Its principle of work is with oil pump or pressurized air the fluid in the petrol storage tank to be pressed in the turbine transformer, making the rotor that is installed on the transmission shaft drive fluid rotates around axis, fluid moves along the rotor blade direction and gets rid of stator to being fixed on the chassis, stationary blade is to the antagonistic force of fluid, change the liquid flow path direction, go back to impact rotor again, formed resisting moment to rotor, act on the transmission shaft, thereby realized braking (deceleration) function of no rigidity friction pair effect, the big portion of vehicle energy is converted into the heat energy of fluid in this process, makes oily temperature rise or is taken away by the medium of H Exch.Because of the good auxiliary braking effect of hydrodynamic retarder, current hydrodynamic retarder is applied on heavy-duty truck and the large and medium-sized passenger vehicle more and more.Should need and give birth to, the company of a lot of production hydrodynamic retarders occur, as the VOITH of Germany, the TELMA of France, the general and Japanese companies such as TBK of the U.S., at present in countries such as Europe, the United States, hydrodynamic retarder has become absolute main flow.Though China is in the research and development of retarder and use existing certain development, compares with advanced person's country and still have big gap.
All kinds of retarders (current vortex, fluid power etc.) of practice all are by different way automobile kinetic energy (or potential energy) to be converted into heat energy to be dispersed in the air both at home and abroad at present, the kinetic energy of automobile obtains by the energy that expends various preciousnesses, and the loss in vain of this energy is very unfortunate.
It should be noted, obtain Preliminary Applications in city bus, waste-skip and the express delivery car that kinetic energy in the time of reclaiming automobile brake and the hydraulic hybrid dynamic automobile that utilizes have again frequently been braked, started at needs, and many technical schemes appear, as the patent No. be 87100344, ZL88214287.9, ZL200620044935.0, ZL200620044934.6, ZL200720073344.0 or the like, though they show the effect of hydrodynamic retarder to a certain extent, still can not ideally substitute and be currently available for the more advanced hydrodynamic retarder that close on square more.
Summary of the invention:
The task of braking kinetic energy regenerating hydraulic retarder for automobile of the present invention, just provide a kind of simple and practical, can reclaim automobile brake kinetic energy and utilize and can better realize the hydrodynamic retarder of slow function again.
Technical scheme of the present invention is: oil pump/oil motor 12 links to each other with the power takeoff of automobile gearbox 14, and the import of oil pump/oil motor 12 is leaded up to check valve 6 and shutoff valve 4 to lamina membranacea piston sealed reservoir 5; Another Lu Jingyi big two two energising magnetic ball valves 7 are to energy storage 10, and in parallel with it is also to lead to energy storage 10 through little two two energising magnetic ball valves 8 and flow regulating valve 9; Pressure transformer 11 control and output system pressure signals, the outlet of oil pump/oil motor 12 is leaded up to check valve 13 to energy storage 10; The controlled overflow unit K that another road constitutes through the inserted valve 16 of pilot proportional by pass valve 15 and 1 control of two two-way electromagnetic valves, and get back to lamina membranacea piston sealed reservoir 5 through cooling mechanism 2 and filter 3.
Their working process and state are as follows:
(1) normal vehicle operation: two two-way electromagnetic valves 1 are under power failure state, oil pump 12 is extracted shutoff valve 4 and the check valve 6 of the fluid in the fuel tank 5 through opening out, end valve 4 through carrying of inserted valve 16 (overflow unit K is in unloading condition) and cooling mechanism 2, filter 3 and another unlatching and get back to lamina membranacea piston sealed reservoir 5, braking kinetic energy regenerating hydraulic retarder for automobile is in the idle loop state of the work for the treatment of.The inserted valve 16 of big latus rectum reduces the oil circuit resistance, reduces the heating of power consumption and fluid.
(2) the slow braking of system's accumulation of energy vehicle is until stop (pulling in as city bus): when driver's pedal that gently touches on the brake, before the original brake system of access failure automobile, make 1 energising of two two-way electromagnetic valves, cut off the oil return of inserted valve 16 control chambers, overflow unit K is in the control of guide proportion by pass valve 15, press the maximum oil pressure relief work of default, oil pump 12 enters energy storage 10 with pressure oil by check valve 13, the oil pressure that the oil pump outlet raises has rapidly formed the resisting moment of rapid increase, make car retardation, vehicle energy is converted into pressure energy in the energy storage 10.When the pressure in the energy storage 10 arrives maximum oil pressure relief, if vehicle does not stop as yet, the accumulation of energy process finishes, the fluid that pumps backs down shutoff valve 4 oil sump tanks of inserted valve 16 (the overflow unit is in the maximum pressure underflow stream) and cooling mechanism 2, filter 3 and unlatching under high pressure conditions, system remains under the state of high resistant moment, continues the performance brake action until parking.If will more stop or the need sudden stop in the short range, the pedal that touches on the brake under the driver only need continue is enabled the original mechanical braking sytem of automobile and is braked faster or emergency brake, and this moment, two systems acted on simultaneously, realize stronger braking, will reduce but reclaim automobile kinetic energy.
(3) system's exoergic vehicle launch (acceleration): vehicle is under idling or flameout state, when the light accelerator pedal of driver, the 8 charged conductings of little two two energising magnetic ball valves, energy storage internal pressure oil enters the outlet of big two two energising magnetic ball valves 7 and the import of oil motor 12 through flow regulating valve 9, this place's oil circuit pressure is raise, open big Solenoid ball valve 7 after the of short duration time-delay again, thus the time big Solenoid ball valve 7 inlet outlet pressure differential less, eliminate or reduced the hydraulic efficiency impact (water hammer) of exergonic process.The outlet fluid of oil motor 12 is got back to fuel tank through the overflow unit K of unloading condition and the shutoff valve 4 of cooling vessel 2, filter 3 and unlatching, act on the oil motor 12 from energy storage 10 pressure oil that comes out, form the moment that promotes vehicle movement by change speed gear box conversely, make vehicle launch and acceleration, the vehicle energy regeneration that glancing impact disappears, part reverts to the kinetic energy of vehicle, and this exergonic process can make the vehicle under the flameout state obtain the initial velocity of energy compression-ignition engine.Power-assisted during vehicle launch will make engine operating condition be greatly improved, and the black smoke when having eliminated starting has reduced discharge of harmful gases.
(4) accumulation of energy of system elder generation is kept slowly again: when vehicle on the hills or the long and steep downgrade section in hill path when travelling, system, control circuit is switched to guide proportion by pass valve servo-actuated state, when driver's pin is gently stepped on system car pedal, before the original brake system of access failure automobile, make 1 energising of two two-way electromagnetic valves, cut off the oil return of inserted valve 16 control chambers, overflow unit K is in the follow-up control of guide proportion by pass valve 15, in accumulation of energy, the fluid that pumps backs down inserted valve 16 and cooling mechanism 2 under the servo-actuated pressure state control of guide's apportioning valve 15, filter 3 and shutoff valve 4 oil sump tanks of opening.During descending, the output of car speed sensor transfers the pressure controlled electric signal to guide proportion by pass valve 15 to, when the descending speed of a motor vehicle surpasses setting value, feeds back to guide proportion electromagnetic valve 15 oil pressure relief of overflow unit K is raise, increasing acts on the resisting moment on the oil pump, and the speed of a motor vehicle is reduced; Otherwise, when the descending speed of a motor vehicle is lower than setting value, feeds back to guide proportion electromagnetic valve 15 overflow unit oil pressure relief reduced, reduce to act on the resisting moment on the oil pump, the speed of a motor vehicle is improved, thereby make the descending speed of a motor vehicle basicly stable in the scope of setting, make vehicle have the cruising speed characteristic.Continuous descending on long steep grade, the potential energy consumption of vehicle has in the corresponding big or small pressure differential overflow in import and export, and the heat that is converted into liquid is sizable, and oil return is necessary through apparatus for supercooling.The slow resisting moment that native system provides (on the wheel) can reach thousands of N-m, in the time of satisfying vehicle substantially and run in the mountain area to the requirement of retarder, but and the also fuel-economizing power-assisted when vehicle transfers upward slope to and maybe need quicken of the energy in the energy storage.
(5) system throws off; When not needing this system works or system's et out of order, the driver can control the electric-air valve switch of existing change speed gear box power takeoff on the car, make oil pump/oil motor 12 throw off (throw off and the operation that engages should be carried out when sailing in that vehicle is left alone without help, in order to avoid the damage combination gear) fully with change speed gear box 14.At this moment, the hydrodynamic retarder that is arranged in parallel with the vehicle main gear is in the quiescence of inoperative, travels but driver's operating and controlling vehicle original system carries out routine.
Another technical scheme of braking kinetic energy regenerating hydraulic retarder for automobile of the present invention is the braking kinetic energy regenerating hydraulic retarder of band power-transfer clutch, and it is provided with one in 12 increases of change speed gear box 14 and oil pump/oil motor can dynamically engage the many Ortlinghaus plate clutchs 17 that are complementary with it of (or disengagement) (air pressure or electronic or fluid power all can) at any time.In the vehicle ' process, need this system participate in energy storing brake, when slow or exoergic is afterburning, (is example with pneumatic) driver controls a two-bit triplet electromagnetic gas valve 18 and makes their instant joints or disengagement, avoid this system to do useless idle loop, not only can prolong system life but also also reduce the invalid loss of motor vehicle fuel to a certain extent.
The characteristics of braking kinetic energy regenerating hydraulic retarder for automobile of the present invention are: recovery section kinetic energy and be used for starting and afterburning in the slow process of braking.Its benefit is: in parallel with the automobile main gear, in conjunction with or throw off convenient; Remarkable energy saving effect is arranged; Exoergic reinforcing when vehicle launch has improved the operating mode of driving engine, has reduced discharge of harmful gases; Can strengthen starting speed, improve efficiency of operation; It is slow into flexible fluid power to become the mechanical rigid braking, when improving travelling comfort, has prolonged the service life of system of vehicle transmission and brake system, has improved the safety performance of vehicle; Adopt mature now hydraulic technique and quantity-produced Hydraulic Elements, simple and reliable, the low cost of manufacture of system is easy to apply.
Description of drawings:
Fig. 1: braking kinetic energy regenerating hydraulic retarder for automobile hydraulic system principle figure.
Fig. 2: the braking kinetic energy regenerating hydraulic retarder for automobile hydraulic system principle figure of band power-transfer clutch.
Embodiment:
Now in conjunction with the accompanying drawings braking kinetic energy regenerating hydraulic retarder for automobile of the present invention is described further.
See Fig. 1, oil pump/oil motor 12 links to each other with the power takeoff of automobile gearbox 14, and the import of oil pump/oil motor 12 is leaded up to check valve 6 and shutoff valve 4 to piston lamina membranacea sealed reservoir 5; Another Lu Jingyi big two two energising magnetic ball valves 7 are to energy storage 10, and in parallel with it is also to lead to energy storage 10 through little two two energising magnetic ball valves 8 and flow regulating valve 9; Pressure transformer 11 control and output system pressure signals, the outlet of oil pump/oil motor 12 is leaded up to check valve 13 to energy storage 10; The controlled overflow unit K that another road constitutes through the inserted valve 16 of pilot proportional by pass valve 15 and 1 control of two two-way electromagnetic valves (among the figure shown in the long and two-short dash line frame), and get back to lamina membranacea piston sealed reservoir 5 through cooling mechanism 2 and filter 3.(patent No.: ZL200720068995.0) provide a normal pressure closed hydraulic loop simple in structure, when automobile was moved in abominable external environment condition, the assurance system was not subjected to dust pollution to lamina membranacea piston sealed reservoir, thereby had improved the reliability of system.
See Fig. 2, another embodiment of braking kinetic energy regenerating hydraulic retarder for automobile is the braking kinetic energy regenerating hydraulic retarder of band power-transfer clutch, different with preceding scheme is, being provided with one in 12 increases of change speed gear box 14 and oil pump/oil motor can be at the many Ortlinghaus plate clutchs 17 that are complementary with it that dynamically engage (or disengagement) at any time (air pressure or electronic or fluid power all can).In the vehicle ' process, need this system participate in energy storing brake, when slow or exoergic is afterburning, (is example with pneumatic) driver controls a two-bit triplet electromagnetic gas valve 18 and makes their instant joints or disengagement, avoid this system to do useless idle loop, not only can prolong system life but also also reduce the invalid loss of motor vehicle fuel to a certain extent.When needs are braked slow or exoergic afterburning (pressure is arranged in the energy storage), driver gently touch on the brake pedal or Das Gaspedal, the motor switch on it is at first connected two-bit triplet electromagnetic gas valve 18, makes power-transfer clutch 17 combinations, system is placed mode of operation, the energy-conservation pooling feature of performance system.
The controlled overflow unit K of two embodiments can have multiple formation scheme, for example is equipped with off-load with little electromagnetic direction valve etc. with the guide proportion by pass valve of big latus rectum.They all possess the basic function of braking kinetic energy regenerating hydraulic retarder for automobile, recovery section kinetic energy and be used for starting and afterburning in the slow process of braking.Be characterized in: in parallel with the automobile main gear, in conjunction with or throw off convenient; Remarkable energy saving effect is arranged; Exoergic reinforcing when vehicle launch has improved the operating mode of driving engine, has reduced discharge of harmful gases; Can strengthen starting speed, improve efficiency of operation; It is slow into flexible fluid power to become the mechanical rigid braking, when improving travelling comfort, has prolonged the service life of system of vehicle transmission and brake system, has improved the safety performance of vehicle; Adopt mature now hydraulic technique and quantity-produced Hydraulic Elements, simple and reliable, the low cost of manufacture of system is easy to apply.It and if the computer system Collaborative Control of ABS, the ASR etc. of vehicle, can realize safer, more humane, more comfortable travelling.
Claims (1)
1. braking kinetic energy regenerating hydraulic retarder for automobile, be mounted in oil pump and hydraulic efficiency pressure system on the large and medium-sized automobile gearbox power taking window, it not only possesses the function of Vehicle Hydraulic Retarder, and be about to discarded kinetic energy can reclaim automobile brake the time and utilize again, it is characterized in that: oil pump (12) links to each other with the power takeoff of automobile gearbox (14), and the import of oil pump (12) is leaded up to check valve (6) and shutoff valve (4) to lamina membranacea piston sealed reservoir (5); Another Lu Jingyi of import of oil pump (12) big two two energising magnetic ball valves (7) are to energy storage (10), and in parallel with another road of import of oil pump (12) is also to lead to energy storage (10) through little two two energising magnetic ball valves (8) and flow regulating valve (9); Pressure transformer (11) control and output system pressure signal, the outlet of oil pump (12) are leaded up to check valve (13) to energy storage (10); Another road of outlet of oil pump (12) is through the controlled overflow unit (K) that the inserted valve (16) of pilot proportional by pass valve (15) and two two-way electromagnetic valves (1) control constitutes, and gets back to lamina membranacea piston sealed reservoir (5) through cooling mechanism (2) and filter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100456776A CN101786447B (en) | 2009-01-22 | 2009-01-22 | Braking kinetic energy regenerating hydraulic retarder for automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100456776A CN101786447B (en) | 2009-01-22 | 2009-01-22 | Braking kinetic energy regenerating hydraulic retarder for automobile |
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| CN101786447A CN101786447A (en) | 2010-07-28 |
| CN101786447B true CN101786447B (en) | 2011-08-24 |
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| CN2009100456776A Expired - Fee Related CN101786447B (en) | 2009-01-22 | 2009-01-22 | Braking kinetic energy regenerating hydraulic retarder for automobile |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700535A (en) * | 2012-02-28 | 2012-10-03 | 吴光友 | Automobile pump retarder |
| DE102015211485A1 (en) * | 2015-06-22 | 2016-12-22 | Zf Friedrichshafen Ag | Gearbox with electric machine and switchable retarder |
| CN105570352A (en) * | 2016-02-24 | 2016-05-11 | 广州大学 | Braking energy conversion device for motor vehicle |
| CN106402207B (en) * | 2016-09-27 | 2019-09-10 | 北京理工大学 | The Retarder hydraulic control system that quick acting and braking moment accurately control |
| CN109696312A (en) * | 2018-12-20 | 2019-04-30 | 潍柴动力股份有限公司 | Test device and test method for vehicle hill climbing test |
| CN113799775B (en) * | 2021-09-24 | 2023-04-18 | 潍柴动力股份有限公司 | Vehicle deceleration control method and control device |
| CN114352697B (en) * | 2021-12-21 | 2023-09-08 | 西安法士特汽车传动有限公司 | Integrated control hydraulic system and control method for torque converter and retarder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1833901A (en) * | 2006-03-10 | 2006-09-20 | 上海交大神舟汽车设计开发有限公司 | Automotive braking force reclaiming economizing and accelerating unit |
| CN201015988Y (en) * | 2006-08-18 | 2008-02-06 | 蒋梅修 | Vehicle energy regeneration device with a clutch |
| CN201070982Y (en) * | 2007-08-07 | 2008-06-11 | 蒋梅修 | Vehicle brake kinetic energy regenerating unit |
| CN201334000Y (en) * | 2009-01-22 | 2009-10-28 | 江绍成 | Kinetic energy regeneration hydrodynamic retarder for automobile brake |
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2009
- 2009-01-22 CN CN2009100456776A patent/CN101786447B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1833901A (en) * | 2006-03-10 | 2006-09-20 | 上海交大神舟汽车设计开发有限公司 | Automotive braking force reclaiming economizing and accelerating unit |
| CN201015988Y (en) * | 2006-08-18 | 2008-02-06 | 蒋梅修 | Vehicle energy regeneration device with a clutch |
| CN201070982Y (en) * | 2007-08-07 | 2008-06-11 | 蒋梅修 | Vehicle brake kinetic energy regenerating unit |
| CN201334000Y (en) * | 2009-01-22 | 2009-10-28 | 江绍成 | Kinetic energy regeneration hydrodynamic retarder for automobile brake |
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Granted publication date: 20110824 Termination date: 20130122 |