CN201970843U - Automobile start-stop apparatus - Google Patents
Automobile start-stop apparatus Download PDFInfo
- Publication number
- CN201970843U CN201970843U CN2011200768427U CN201120076842U CN201970843U CN 201970843 U CN201970843 U CN 201970843U CN 2011200768427 U CN2011200768427 U CN 2011200768427U CN 201120076842 U CN201120076842 U CN 201120076842U CN 201970843 U CN201970843 U CN 201970843U
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- hydraulic
- engine
- belt pulley
- hydraulic motor
- piston engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
The utility model discloses an automobile start-stop apparatus comprising an engine, a hydraulic motor, a belt pulley, a clutch and a hydraulic free-piston engine. The hydraulic motor and the belt pulley are fixed together by a bracket and the engine, the belt pulley and a belt pulley at the front end of the engine are arranged at same horizontal plane, power transmission is carried out between the belt pulley and the belt pulley at the front end of the engine by a belt, an output shaft of the hydraulic motor is connected with the belt pulley by the clutch, a high-pressure oil inlet of the hydraulic motor is connected with a high-pressure hydraulic oil outlet of the hydraulic free-piston engine by a high-pressure hose, a low-pressure oil inlet of the hydraulic motor is connected with an oil tank, and a low-pressure oil suction opening of the hydraulic free-piston engine is connected with the oil tank. By utilizing the technical scheme of the utility model, non-idle running of the engine can be realized when vehicles are under an urban operating condition of frequently starting and stopping, the running condition of the vehicles can be improved, and the purposes of saving energy and reducing exhaust are achieved.
Description
Technical field
The utility model relates to machine liquid combination drive technical field, relates in particular to a kind of automobile starting and stopping mechanism.
Background technology
Along with manifesting day by day of global energy crisis and ecological deterioration problem, the requirement of the energy-conservation and environmental-protecting performance of driving engine is also improved constantly.The vehicle starting and stopping mechanism can be when the of short duration parking of vehicle automatic shutting theengine down, when vehicle starts once more, utilize starting and stopping mechanism with the direct high rotating speed starting of driving engine, save the vehicle idling operating mode, thereby save fuel oil, reduce discharging.According to the characteristics of starting and stopping mechanism as can be known, starting and stopping mechanism is particularly useful for metropolitan mass transportation facilities, as bus, frequent starting such as taxicar and the operating mode of stopping, in urban traffic situation, because population and vehicle are concentrated, cause the city vehicle operating condition to be in the little load condition of abominable idling for a long time, particularly for mass transportation facilities, the most typical as bus and taxicar, in urban traffic situation, be in the low speed of a motor vehicle for a long time, high oil consumption, serious bad working environments such as maximum discharge, it is many to stop website for public transit vehicle, distance is short between standing and standing, the speed of a motor vehicle is low in addition, characteristics such as the traffic road junction is many cause the starting-parking operating mode of public transit vehicle very frequent, and power overwhelming majority form with heat energy in braking procedure that this special operation condition causes driving engine to produce dissipates, and for a long time frequent parking operating mode makes the engine long time be in idle state, and the driving engine of this operating mode operation oil consumption height not only, and discharging is poor.Consider in view of above-mentioned running conditions of vehicle, proposed in recent years that auto idle speed stops and start system.
At present, the vehicle starting and stopping mechanism has 3 kinds of technical schemes: the most generally adopt independently starter and electrical generator, and desired power when having actuating motor engine starting being provided; Second kind of technical scheme is to adopt integrated starter-generator system, for engine starting provides more high-performance starting speed; The third technical scheme is intelligent idling system, and this system restarts driving engine by the energy that burning produces.But, present starting and stopping mechanism exist can not with the Automatic Transmission compatibility, can not with some technical barriers such as high-power diesel engine coupling, and then suppressed further applying of above-mentioned several stop schemes.
The utility model content
The purpose of this utility model is to propose a kind of automobile starting and stopping mechanism, can realize vehicle driving engine no idle when the frequent city operating mode of start-stop, improves running conditions of vehicle, reaches the purpose of energy-saving and emission-reduction.
For reaching this purpose, the utility model by the following technical solutions:
A kind of automobile starting and stopping mechanism, comprise driving engine, HM Hydraulic Motor, belt pulley, power-transfer clutch and hydraulic free-piston engine, HM Hydraulic Motor and belt pulley are fixed together by support and driving engine, belt pulley and front of the engine belt pulley are positioned at same horizontal surface, carry out power transmission by belt between belt pulley and the front of the engine belt pulley, be connected by power-transfer clutch between hydraulic motor output shaft and the belt pulley, the high pressure oil inlet of HM Hydraulic Motor is connected by high pressure hose with the high-pressure and hydraulic oil outlet of hydraulic free-piston engine, the low pressure oil inlet of HM Hydraulic Motor links to each other with fuel tank, and the low pressure oil suction of hydraulic free-piston engine links to each other with fuel tank.
Also comprise fuel-displaced check valve and in line check valve, fuel-displaced check valve is connected on the high pressure hose between the high-pressure and hydraulic oil outlet of the high pressure oil inlet of HM Hydraulic Motor and hydraulic free-piston engine, and in line check valve is connected on the low pressure oil suction and the pipeline between the fuel tank of hydraulic free-piston engine.
Also comprise high pressure accumulator, high pressure accumulator is linked into the high pressure hose between the high-pressure and hydraulic oil outlet of the high pressure oil inlet of HM Hydraulic Motor and hydraulic free-piston engine.
Also comprise low pressure accumulator, low pressure accumulator is linked in line check valve and is connected on the low pressure oil suction of hydraulic free-piston engine and the pipeline between the fuel tank.
HM Hydraulic Motor is a hydraulic pump motor.
Adopted the technical solution of the utility model, not only can realize vehicle driving engine no idle when the frequent city operating mode of start-stop, improve running conditions of vehicle, reach the purpose of energy-saving and emission-reduction, and, cooperate hydraulic accumulator can realize that vehicle braked can reclaim, thereby improve the vehicle capacity usage ratio, further realize energy-conservation requirement.
Description of drawings
Fig. 1 is the structural representation of automobile starting and stopping mechanism in the utility model specific embodiment.
The specific embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment.
The basic thought of technical solutions of the utility model is that single cylinder miniwatt hydraulic free-piston engine is parallel in the automotive power, as the propulsion source of vehicle start-stop, constitutes the vehicle starting and stopping mechanism.When the of short duration parking of vehicle, enter the station as bus, taxicar is the guest up and down, and when waiting for traffic lights, vehicle motor is closed, when vehicle is started to walk again, utilize the original actuating motor of hydraulic free-piston engine replacement vehicle motor to be started with higher rotation speed as the propulsion source of the starting of vehicle motor, and then realize the starting once more of vehicle fast, there is not idling operation in hydraulic free-piston engine, always work in good operating mode, can realize the starting of vehicle anti-emission carburetor, thereby the saving fuel oil reduces discharging, and the use of cooperation hydraulic accumulator can also realize the recovery of car brakeing energy.
Fig. 1 is the structural representation of automobile starting and stopping mechanism in the utility model specific embodiment.As shown in Figure 1, driving engine 4, change speed gear box 5, drive axle 7 and wheel 6 are the original power drive systems of vehicle, do not do any variation.HM Hydraulic Motor 11 and belt pulley 9 are fixed together by support and driving engine, belt pulley 9 and front of the engine belt pulley 3 are arranged in same horizontal surface, guarantee the reliability of belt transmission, carry out power transmission by belt 8 between belt pulley 9 and the front of the engine belt pulley 3, be connected by power-transfer clutch 10 between the output shaft of HM Hydraulic Motor 11 and the belt pulley 9.
The high pressure oil inlet P of HM Hydraulic Motor 11 is connected with high pressure hose with the high-pressure and hydraulic oil outlet A of hydraulic free-piston engine 1, fuel-displaced check valve 15 is connected on the high pressure hose between the high-pressure and hydraulic oil outlet of the high pressure oil inlet of HM Hydraulic Motor and hydraulic free-piston engine, fuel-displaced check valve is finished the oil extraction function of hydraulic free-piston engine, high pressure hose between the high pressure oil inlet that high pressure accumulator 2 is linked into HM Hydraulic Motor and the high-pressure and hydraulic oil outlet of hydraulic free-piston engine, high pressure accumulator is exported high pressure oil pressure in order to the stable hydraulic free piston engine.
The low pressure oil inlet T of HM Hydraulic Motor 11 links to each other with fuel tank 12, the low pressure oil suction B of hydraulic free-piston engine 1 also links to each other with fuel tank 12, in line check valve 14 is connected on the low pressure oil suction and the pipeline between the fuel tank of hydraulic free-piston engine, in line check valve is finished the oil absorptive function of hydraulic free-piston engine, low pressure accumulator 13 is linked in line check valve and is connected on the low pressure oil suction of hydraulic free-piston engine and the pipeline between the fuel tank, and low pressure accumulator is inhaled empty in order to prevent the hydraulic free-piston engine low pressure oil.
Hydraulic free-piston engine 1 sucks the low pressure oil in the fuel tank 12 by in line check valve 14, by hydraulic free-piston engine low pressure oil is converted into high pressure oil by fuel-displaced check valve 15 outputs, high pressure oil drives HM Hydraulic Motor 11 rotations, HM Hydraulic Motor 11 drives belt pulley 9 rotations by power-transfer clutch 10, and power is passed to front of the engine belt pulley 3 by belt 8.
Wherein, reclaim in order to realize braking energy, HM Hydraulic Motor adopts the hydraulic pump motor system, promptly can realize Hydraulic Pump and HM Hydraulic Motor handoff functionality, when using as HM Hydraulic Motor, for vehicle motor provides starting power; When using as Hydraulic Pump, be that the power of driving engine is driven the Hydraulic Pump rotation by belt pulley, Hydraulic Pump is stored in high pressure accumulator after with the low pressure oil pressurization, realizes energy recovery.
This starting and stopping mechanism working process is: when vehicle needs of short duration stopping owing to certain situation, as the wait red light operating mode in the operating mode of city, public transport inlet parking operating mode or the like.At this moment, vehicle motor 4 is flame-out, quit work, when vehicle is started to walk once more, utilize the high pressure oil in the high pressure accumulator 2 to drive HM Hydraulic Motor 11 rotations, drive belt pulley 9 rotations, by belt 8 transmission of power is arrived front of the engine belt pulley 3, because front of the engine belt pulley 3 links to each other with the bent axle of driving engine 4, the high speed revolution of front of the engine belt pulley drags driving engine and starts with higher rotation speed, and then the promotion vehicle start, enter the cruising operating mode.Power-transfer clutch 10 separates behind the driving engine normal starting, the power and the front of the engine belt pulley 3 of HM Hydraulic Motor 11 are cut off, the effect of hydraulic free-piston engine 1 is to provide enough high-pressure and hydraulic oil for high pressure accumulator 2 in this process, with guarantee hydraulic accumulator for rise-stop device provides enough energy, because there is not the low speed and load operating mode in hydraulic free-piston engine, promptly always work in good operating point, simultaneously, the energy recovery by hydraulic pump motor 11 also can be recycled to part energy high pressure accumulator 2.
Operation power when different operating mode is described below flows to as follows:
1) during engine starting.During the driving engine initial start, utilize driving engine with conventional start system start: ignition key is turned to the starting position, utilizes the energy of storage battery actuating motor to be connected fire an engine.
2) during normal vehicle operation.During normal vehicle operation, power-transfer clutch 10 separates, and the outputting power of HM Hydraulic Motor 11 and belt pulley 9 cut off, and driving engine 4, change speed gear box 5, drive axle 7 and wheel 6 etc. carry out work according to the conventional truck power transmission mode.
When 3) braking energy reclaims.When the car retardation glancing impact, power-transfer clutch 10 combinations, front of the engine belt pulley 3 reaches hydraulic pump motor 11 by belt 8 and belt pulley 9 with power, modulated pressure pump motor 11 makes it be operated in the Hydraulic Pump state, drive Hydraulic Pump by belt pulley and be stored in high pressure accumulator 2 after with the low pressure oil pressurization, realize that braking energy reclaims.
When 4) idling is stopped.Vehicle runs into when needing of short duration parking, driving engine is extinguished, the vehicle ancillary system switches to the hydraulic free-piston engine type of drive, promptly by HM Hydraulic Motor end belt pulley 9 outputting powers by device such as belt drive Air compressor, guarantee driving engine quit work during the vehicle ancillary system can normal operation.
When 5) hydraulic free-piston engine is worked.Whether hydraulic free-piston engine starts relevant with hydraulic energy in the high pressure accumulator 2, when the pressure in the high pressure accumulator 2 is lower than setting value, hydraulic free-piston engine starts immediately, for high pressure accumulator replenishes high-pressure and hydraulic oil, guarantee to keep the setting hydraulic pressure in the high pressure accumulator 2, when hydraulic accumulator 2 energy were enough, hydraulic free-piston engine was in the state of quitting work.
6) when vehicle need start once more, be after the driver provides enabled instruction, at this moment hydraulic pump motor 11 is adjusted to the HM Hydraulic Motor operating mode, high pressure oil in the high pressure accumulator 2 drives the HM Hydraulic Motor rotation, by belt pulley 9, belt 8 and front of the engine belt pulley 3 moment of torsion is reached driving engine 4, drag driving engine 4 high-speed startings, make driving engine 4 enter mode of operation fast.
The starting and stopping mechanism of this specific embodiment has been realized vehicle zero idling operation enforcement, simultaneously, can realize the vehicle energy recovery, reduced the oil consumption of vehicle effectively, reduced vehicular discharge, can solve vehicle effectively rise-stopping bad working environments such as the deterioration of emission of frequent road condition when travelling, oil consumption height, be particularly useful for the urban public transport vehicle.Compare with several vehicle starting and stopping mechanisms that occur in the market, the starting and stopping mechanism of this specific embodiment utilizes hydraulic pressure as driving medium owing to adopt hydraulic free-piston engine as the independent power source, has following advantage:
1) hydraulic-driven has very high power density, has clear superiority as vehicle motor starting power and conventional motors starting.
2) adopt hydraulic pressure as the power transmission medium, realized flexible layout, the idle space on can the flexible utilization vehicle arranges, no matter be existing vehicle transformed or new product development all has feasibility.
3) hydraulically powered high power density characteristic has guaranteed the high rotating speed starting of vehicle motor, has thoroughly eliminated engine idling condition.
4) during vehicle motor is out of service, the vehicle ancillary system can drive by hydraulic energy source, during driving engine is out of service, utilize the hydraulic energy of hydraulic free-piston engine to drive as vehicle air conditioning, vehicle gear box with hydraulic coupling etc., guaranteed the travelling comfort of vehicle and automatic transmission with hydraulic torque converter with-compatibility of stop device.Overcome tradition to rise-out-of-action drawback of stop device ancillary system during driving engine is out of service and being difficult to and defective such as automatic transmission with hydraulic torque converter compatibility.
5) can be easy to by the frequency of operation of modulated pressure free piston engine to realize and the Engine Matching of different capacity, overcome tradition to rise-stop device is difficult to mate the drawback of high output diesel engine.
The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with the people of this technology in the disclosed technical scope of the utility model; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (5)
1. automobile starting and stopping mechanism, it is characterized in that, comprise driving engine, HM Hydraulic Motor, belt pulley, power-transfer clutch and hydraulic free-piston engine, HM Hydraulic Motor and belt pulley are fixed together by support and driving engine, belt pulley and front of the engine belt pulley are positioned at same horizontal surface, carry out power transmission by belt between belt pulley and the front of the engine belt pulley, be connected by power-transfer clutch between hydraulic motor output shaft and the belt pulley, the high pressure oil inlet of HM Hydraulic Motor is connected by high pressure hose with the high-pressure and hydraulic oil outlet of hydraulic free-piston engine, the low pressure oil inlet of HM Hydraulic Motor links to each other with fuel tank, and the low pressure oil suction of hydraulic free-piston engine links to each other with fuel tank.
2. a kind of automobile starting and stopping mechanism according to claim 1, it is characterized in that, also comprise fuel-displaced check valve and in line check valve, fuel-displaced check valve is connected on the high pressure hose between the high-pressure and hydraulic oil outlet of the high pressure oil inlet of HM Hydraulic Motor and hydraulic free-piston engine, and in line check valve is connected on the low pressure oil suction and the pipeline between the fuel tank of hydraulic free-piston engine.
3. a kind of automobile starting and stopping mechanism according to claim 1 is characterized in that, comprises that also high pressure accumulator, high pressure accumulator are linked into the high pressure hose between the high-pressure and hydraulic oil outlet of the high pressure oil inlet of HM Hydraulic Motor and hydraulic free-piston engine.
4. a kind of automobile starting and stopping mechanism according to claim 1 is characterized in that, comprises that also low pressure accumulator, low pressure accumulator are linked in line check valve and are connected on the low pressure oil suction of hydraulic free-piston engine and the pipeline between the fuel tank.
5. a kind of automobile starting and stopping mechanism according to claim 1 is characterized in that HM Hydraulic Motor is a hydraulic pump motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200768427U CN201970843U (en) | 2011-03-22 | 2011-03-22 | Automobile start-stop apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200768427U CN201970843U (en) | 2011-03-22 | 2011-03-22 | Automobile start-stop apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201970843U true CN201970843U (en) | 2011-09-14 |
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ID=44575947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200768427U Expired - Fee Related CN201970843U (en) | 2011-03-22 | 2011-03-22 | Automobile start-stop apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN201970843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939857A (en) * | 2017-12-22 | 2018-04-20 | 吉孚汽车技术(浙江)有限公司 | Start and stop for automatic transmission pump |
-
2011
- 2011-03-22 CN CN2011200768427U patent/CN201970843U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939857A (en) * | 2017-12-22 | 2018-04-20 | 吉孚汽车技术(浙江)有限公司 | Start and stop for automatic transmission pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20140322 |