CN202098403U - Vehicle brake energy recycling hydraulic device - Google Patents

Vehicle brake energy recycling hydraulic device Download PDF

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Publication number
CN202098403U
CN202098403U CN2010205302113U CN201020530211U CN202098403U CN 202098403 U CN202098403 U CN 202098403U CN 2010205302113 U CN2010205302113 U CN 2010205302113U CN 201020530211 U CN201020530211 U CN 201020530211U CN 202098403 U CN202098403 U CN 202098403U
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CN
China
Prior art keywords
valve
hydraulic
motor
energy
hydraulic pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010205302113U
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Chinese (zh)
Inventor
罗忠辉
李玉忠
吴彦锋
黄惠
周灿星
刘旭红
余立成
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Guangdong Polytechnic Normal University
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Guangdong Polytechnic Normal University
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Application filed by Guangdong Polytechnic Normal University filed Critical Guangdong Polytechnic Normal University
Priority to CN2010205302113U priority Critical patent/CN202098403U/en
Application granted granted Critical
Publication of CN202098403U publication Critical patent/CN202098403U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an intelligent vehicle brake energy recycling hydraulic device, which comprises a transmission connecting component and an electric hydraulic control component. The transmission connecting component consists of a transmission gear (1) and an electromagnetic clutch (2), and the electric hydraulic control component comprises a hydraulic pump/motor (3), an electromagnetic reversing valve (4), a filter (5), an overflow valve (6), an oil tank (7), a sequence valve (8), a one-way valve (9), an electric hydraulic proportional speed regulating valve (10), an energy accumulator (11), a pressure gauge (12), a pressure sensor (13) and a single chip microcomputer control unit (14). A shaft of the transmission gear is connected with a flange of the electromagnetic clutch, a flange at the other end of the electromagnetic clutch is connected with a spindle of the hydraulic pump/motor, an oil inlet and an oil outlet of the hydraulic pump/motor are connected with the electromagnetic reversing valve, and the electromagnetic reversing valve is sequentially connected with the overflow valve (6), the oil tank (7), the sequence valve (8), the one-way valve (9), the electric hydraulic proportional speed regulating valve (10) and the energy accumulator (11). An embedded type single chip microcomputer intelligently controls opening of the electric hydraulic proportional speed regulating valve, and braking effect is realized while kinetic of a vehicle is converted into hydraulic energy to be stored in the energy accumulator. The intelligent vehicle brake energy recycling hydraulic device can save energy and prolong the service life of an original brake system of the vehicle.

Description

Vehicle braking energy recycle hydraulic efficiency gear
1, technical field:
The utility model is a kind of vehicle braking energy recycle hydraulic efficiency gear, and it is used for urban public traffic vehicles, and effects of energy saving and emission reduction is particularly remarkable, belongs to mechanical-electrical-hydraulic integration device and transportation technology field.
2, background technology:
Increasing along with car owning amount, numerous urban traffic amount is big, causes crowded traffic and the phenomenon of traffic congestion has been very general; Moreover the bus in city is because the demand that enters the station/set off; Automobile need often slow down (parking), stop; Start then, quicken, the braking, the starting very frequent, reduced the service life of drg greatly; Simultaneously automobile fuel consumption increases, and the kinetic energy of automobile is converted into the heat energy of brake strip and consumes during car brakeing.The design's target is utilized modern mechanical-electrical-hydraulic integration technology exactly, and the energy during with automobile brake reclaims storage, when automobile start or acceleration, with the power of the energy that reclaims as the automobile driving.On the one hand, the energy during automobile brake is fully utilized, and has improved the fuel-economy performance of automobile, also can improve the emission behavior of vehicle simultaneously; On the other hand, can significantly improve the service life of car brake.
3, summary of the invention:
The purpose of the utility model is to provide a kind of vehicle braking energy recycle device of novelty.Device by a hydraulic pump/motor with reversible action realize in the energy storage hydraulic pressure can and vehicle energy between conversion; Promptly when car brakeing; Energy-storage system is worked pump/motor with the mode of pump; The kinetic energy of vehicle ' drives the Hydraulic Pump rotation through mechanical drive, and hydraulic oil is pressed in the energy storage, realizes that kinetic energy is to the hydraulic pressure transformation of energy; At vehicle launch or when quickening, energy-storage system again with pump/motor with motor mode work, high pressure oil is exported from energy storage, CD-ROM drive motor work realizes the conversion that hydraulic pressure can arrive vehicle energy.Whole process is to gather accelerator open degree signal, brake pedal dynamics signal, GES, hydraulic efficiency pressure system fuel injection pressure signal by the Single-chip Controlling unit; Through data operation; The output control signal is controlled the closure and the disconnection of magnetic clutch, solenoid directional control valve, makes pump/motor, the work of energy storage harmonious orderly.Device adopts micro controller system and electrohydraulic proportional velocity regulating valve control technology, thus can slowly/emergency braking, at a slow speed/quick start operating mode under, the aperture of automatically regulating flow valve makes full use of energy; Also according to the combination of system pressure signal, the real-time modulated pressure priming of pump of GES and off-load, power-transfer clutch with separate saving in energy to greatest extent.
The composition structure of the utility model is as shown in Figure 1, the electrohydraulic control assembly that be in transmission connection assembly and hydraulic pump/motor (3), solenoid directional control valve (4), filter (5), by pass valve (6), fuel tank (7), sequence valve (8), check valve (9), electrohydraulic proportional velocity regulating valve (10), energy storage (11), compression indicator (12), pressure sensor (13), Single-chip Controlling unit (14) that include that transmission gear (1), magnetic clutch (2) form are formed.Wherein the axle of transmission gear is connected with the flange of magnetic clutch (2); The other end flange of magnetic clutch is connected with the main shaft of hydraulic pump/motor (3), and hydraulic pump/motor (3) is connected with solenoid directional control valve (4), by pass valve (6), fuel tank (7), sequence valve (8), check valve (9), electrohydraulic proportional velocity regulating valve (10) and energy storage (11) successively.
Single-chip Controlling unit (14) in the above-mentioned electrohydraulic control assembly is connected with magnetic clutch (2), solenoid directional control valve (4) and electrohydraulic proportional velocity regulating valve (10) respectively, and after being designed to sequence valve (8) and check valve (9) being connected again the parallel connection form.Setting pressure sensor on the hydraulic circuit, the output of sensor is connected with the input of micro controller system, and circuit connects as shown in Figure 2.
The principle of work of the utility model is:
(1) braking accumulation of energy operating mode: when the car brakeing of going, after the Single-chip Controlling unit carries out data operation according to the GES, the brake pedal dynamics signal that collect, the output control signal; Control magnetic clutch, solenoid directional control valve closure, and the aperture of controlling electro-hydraulic proportional flow valve in real time are through mechanical connection and magnetic clutch; Utilize the kinetic energy of vehicle to drive the Hydraulic Pump rotation; Hydraulic oil is pressed into energy storage through solenoid directional control valve and pipeline, thereby converts the kinetic energy of vehicle to hydraulic pressure and can store, when the Single-chip Controlling unit receives energy storage when having arrived its maximum pressure signal; Break off magnetic clutch, make the Hydraulic Pump off-load simultaneously.Adopt the purpose of electro-hydraulic proportional flow valve to be: hydraulic braking force can rationally be regulated under slow or emergency braking operating mode, makes this device that a good energy storage and braking effect all arranged under the various speed of a motor vehicle, satisfies the requirement of passenger comfort.
(2) the ability operating mode is released in starting: when vehicle launch or acceleration; The aperture of the joint and the electro-hydraulic proportional flow valve of magnetic clutch, solenoid directional control valve is controlled in the Single-chip Controlling unit according to the GES in throttle signal, the starting process; High pressure oil in the energy storage drives the HM Hydraulic Motor rotation through oil circuit at this moment; HM Hydraulic Motor drives power-transfer clutch and exports to wheel, realizes the braking energy recycle, for vehicle launch provides auxiliary power.Controlling the aperture of electro-hydraulic proportional valve in real time with micro controller system, is in order to satisfy vehicle quick start and the slow start operating mode demands of different to cranking torque.
The utility model is a kind of comprehensive mechanical-electrical-hydraulic integration technology, vehicle braking energy recycle hydraulic efficiency gear simple in structure, convenient and practical.
4, description of drawings:
Fig. 1 is vehicle braking energy recycle hydraulic device structure figure.Among the figure, 1, transmission gear; 2, magnetic clutch; 3, hydraulic pump/motor; 4, solenoid directional control valve; 5, filter; 6, by pass valve; 7, fuel tank; 8, sequence valve; 9, check valve; 10, electrohydraulic proportional velocity regulating valve; 11, energy storage; 12, compression indicator; 13, pressure sensor; 14, Single-chip Controlling unit.
Fig. 2 is a Single-chip Controlling Elementary Function module connection diagram.Among the figure, 2, magnetic clutch; 4, solenoid directional control valve; 10, electrohydraulic proportional velocity regulating valve; 14, Single-chip Controlling unit; 15, accelerator open degree sensor; 16, normal danger sensor; 17, tachogen; 18, pressure sensor; 19, multiway analog switch; 20, A/D module; 21, D/A module; 22, amplifying circuit.
Fig. 3 is embodiment, i.e. this device and automotive power connection diagram.Among the figure, 1, transmission gear; 2, magnetic clutch; 3, hydraulic pump/motor; 7, fuel tank; 11, energy storage; 14, Single-chip Controlling unit; 23, hydraulic circuit components; 24, driving engine; 25, coupler; 26, change speed gear box; 27, car speed sensor; 28, wheel; 29, plunging joint; 30, back axle.
5, the specific embodiment:
Embodiment:
The utility model is connected as shown in Figure 3 with automotive power, include the assembly that is in transmission connection that the electrohydraulic control assembly be made up of Single-chip Controlling unit, hydraulic pump/motor, fuel tank, energy storage and hydraulic circuit components (23) (comprising solenoid directional control valve, by pass valve, sequence valve, check valve, electrohydraulic proportional velocity regulating valve, pressure sensor, compression indicator) and transmission gear (1) and magnetic clutch (2) are formed.Wherein transmission gear (1) is connected with gear in the vehicle startup machine gearbox; The axle of transmission gear is connected with the flange of magnetic clutch (2); The other end flange of magnetic clutch is connected with the main shaft of hydraulic pump/motor (3), and the oil outlet of hydraulic pump/motor is connected with hydraulic circuit components (23) and energy storage.
The Single-chip Controlling electrohydraulic proportional velocity regulating valve is adopted in the design of above-mentioned hydraulic circuit, and parallelly connected again mode after being designed to check valve and sequence valve being connected.Setting pressure sensor on the hydraulic circuit, the output of sensor is connected with the input of micro controller system, and Single-chip Controlling Elementary Function module connects as shown in Figure 2.
With city bus big bus vehicle is example, and the speed of a motor vehicle is generally not high according to statistics, and generally between 30km/h~50km/h, the average acceleration of automobile start is 0.5m to the average ground speed of city vehicle 2About/s.Consider the actual load of city motor bus, adopting the total mass of automobile is 16 tons, and parking period calculated in 20 seconds.
At the vehicle launch initial stage, most of power HM Hydraulic Motor provides, and after energy storage pressure drops to a certain degree, by driving engine power is provided again.Vehicle braking energy recovery system mainly contains 4 key parameters: the discharge capacity V of hydraulic pump/motor m, energy storage initial volume V 0, energy storage minimum operating pressure P 1, maximum working pressure P 2Deng.These 4 parameters of choice are calculated main total mass and damped condition according to vehicle, calculate to improving this target of energy transformation ratio.With vehicular gross combined weight is 16 tons, and parking period calculated in 20 seconds, and the result is: discharge capacity V m=180 milliliters/change energy storage initial volume V 0=50 liters, energy storage minimum operating pressure P 1=1MPa, maximum working pressure P 2=10MPa, vehicle launch operating mode fuel saving ratio reaches 28%, and the load of driving engine has remarkable result to the exhaust emission that improves the vehicle start operating mode when reducing the vehicle start operating mode greatly simultaneously.

Claims (3)

1. vehicle braking energy recycle hydraulic efficiency gear with Based Intelligent Control; It is characterized in that including transmission gear (1), magnetic clutch (2) form the electrohydraulic control assembly that assembly and hydraulic pump/motor (3), solenoid directional control valve (4), filter (5), by pass valve (6), fuel tank (7), sequence valve (8), check valve (9), electrohydraulic proportional velocity regulating valve (10), energy storage (11), compression indicator (12), pressure sensor (13), Single-chip Controlling unit (14) form that is in transmission connection; Wherein the axle of transmission gear is connected with the flange of magnetic clutch (2); The other end flange of magnetic clutch is connected with the main shaft of hydraulic pump/motor (3), and hydraulic pump/motor (3) is connected with solenoid directional control valve (4), by pass valve (6), fuel tank (7), sequence valve (8), check valve (9), electrohydraulic proportional velocity regulating valve (10) and energy storage (11) successively.
2. vehicle braking energy recycle hydraulic efficiency gear according to claim 1, it is characterized in that hydraulic circuit components (23) adopt sequence valve (8) and check valve (9) connected after parallelly connected again design.
3. vehicle braking energy recycle hydraulic efficiency gear according to claim 1 is characterized in that being connected with magnetic clutch (2), solenoid directional control valve (4) and electrohydraulic proportional velocity regulating valve (10) respectively with Single-chip Controlling unit (14).
CN2010205302113U 2010-09-14 2010-09-14 Vehicle brake energy recycling hydraulic device Expired - Fee Related CN202098403U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205302113U CN202098403U (en) 2010-09-14 2010-09-14 Vehicle brake energy recycling hydraulic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205302113U CN202098403U (en) 2010-09-14 2010-09-14 Vehicle brake energy recycling hydraulic device

Publications (1)

Publication Number Publication Date
CN202098403U true CN202098403U (en) 2012-01-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205302113U Expired - Fee Related CN202098403U (en) 2010-09-14 2010-09-14 Vehicle brake energy recycling hydraulic device

Country Status (1)

Country Link
CN (1) CN202098403U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103802809A (en) * 2012-11-08 2014-05-21 秦皇岛天业通联重工股份有限公司 Brake control system of mining dump truck and mining dump truck
CN113280011A (en) * 2021-05-11 2021-08-20 中冶宝钢技术服务有限公司 Static pressure driving system of vehicle and control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103802809A (en) * 2012-11-08 2014-05-21 秦皇岛天业通联重工股份有限公司 Brake control system of mining dump truck and mining dump truck
CN113280011A (en) * 2021-05-11 2021-08-20 中冶宝钢技术服务有限公司 Static pressure driving system of vehicle and control method thereof

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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: 20120104

Termination date: 20120914