CN103722996A - Hydraulic buffer energy recovering system based on electric energy storage element and hydraulic buffer energy recovering control method based on electric energy storage element - Google Patents
Hydraulic buffer energy recovering system based on electric energy storage element and hydraulic buffer energy recovering control method based on electric energy storage element Download PDFInfo
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- CN103722996A CN103722996A CN201410011234.6A CN201410011234A CN103722996A CN 103722996 A CN103722996 A CN 103722996A CN 201410011234 A CN201410011234 A CN 201410011234A CN 103722996 A CN103722996 A CN 103722996A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/08—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching or like movements, e.g. from the vibrations of a machine
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- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a hydraulic buffer energy recovering system based on an electric energy storage element and a hydraulic buffer energy recovering control method based on the electric energy storage element. Partial vibration energy absorbed by a hydraulic buffer is converted into electric energy to be stored in the electric energy storage element through a hydraulic motor, an electric generator and a controllable converter, and therefore the energy utilization rate is improved, and heat dissipation is reduced. Currents of the electric generator are controlled through the controllable converter according to the charge state information and vehicle vibration information of the electric energy storage element, and therefore the damping characteristics can be adjusted without any external power supply. When the energy recovering function fails or when the power generation process is stopped due to the saturation charge state of the electric energy storage element, vibration of the system can be driven to reduce only through a throttling valve according to the structure that the throttling valve is connected with the hydraulic motor in series, and therefore high reliability is achieved.
Description
Technical field
The present invention relates to hydrostatic drive and generation technology, relate in particular to a kind of energy of vibration by hydraulic damper and convert electric energy the device of storing and control method to.
Background technology
Hydraulic damper is the common component of vehicle suspension system, is mainly used in isolation and vibration and the impact of decay road to car body, at aspects such as improving riding comfort and travelling comfort, plays an important role.Under external excitation, thereby the fluid of hydraulic damper inside produces by some throttling ducts the dumping force that suppresses vibration repeatedly.But hydraulic damper conventionally converts the energy of vibration of absorption to heat dissipation and falls, and has not only wasted energy, also can cause element heating and life-span to be reduced, if want in addition damping adjusting often to need extra energy supply.
Converting energy of vibration to electric energy is energy-saving and cost-reducing effective measures of hydraulic damper to realize recycling.In existing energy recovery scheme, the damping force characteristics of hydraulic damper depends on power generation process completely, and when power generation process stops, hydraulic damper will lose vibration-damping function, cause reliability poor; And the electric energy reclaiming power consumption load accordingly, and the resistance of load size can affect the damping force characteristics of hydraulic damper.Electric/hybrid vehicle is owing to being equipped with the electric energy-storage travelling wave tube being connected with power motor as super capacitor or electrokinetic cell, for damping control and the recycling approach of energy removal process provide new thinking.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of hydraulic damper energy-recuperation system and control method based on electric energy-storage travelling wave tube, be particularly useful for electric/hybrid vehicle, can by energy of vibration is converted to power storage in electric energy-storage travelling wave tube with improve capacity usage ratio, realize adjustable without the damping force characteristics under outside energy supply condition simultaneously, and switch to passive vibration reducing mode when the state-of-charge of electric energy-storage travelling wave tube is saturated.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
Hydraulic damper energy-recuperation system based on electric energy-storage travelling wave tube comprises: piston component and shock absorber cylinder body, and piston component is arranged in shock absorber cylinder body and linear reciprocating motion relatively; Piston component is divided into rodless cavity and rod chamber by the internal cavity of shock absorber cylinder body, oil circuit between rodless cavity and rod chamber connects by check valve, oil circuit between rodless cavity and fuel tank connects by check valve, and the oil circuit between rod chamber and fuel tank connects by flow regulating valve and HM Hydraulic Motor; The projecting shaft of HM Hydraulic Motor connects electrical generator, and the winding connection end of electrical generator connects the input end of controllable current transformer; The mouth of controllable current transformer connects electric energy-storage travelling wave tube, the control end connection control unit of controllable current transformer; The state-of-charge information of the vibration information of control unit collection vehicle and electric energy-storage travelling wave tube and by control method, process after, the control signal of output to controllable current transformer.
Hydraulic damper energy recycling and control method based on electric energy-storage travelling wave tube comprises the following steps: 1) control unit initialization; 2) gather the state-of-charge information of electric energy-storage travelling wave tube; 3) judge that whether the state-of-charge of electric energy-storage travelling wave tube is saturated, if so, controllable current transformer does not enable, then performs step 2); If not, execution step 4); 4) vibration information of collection vehicle; 5) according to the current target value of damping force characteristics regulation strategy output generator; 6) controllable current transformer enables and the actual current of electrical generator is controlled, then performs step 2).
The present invention, compared with background technology, has useful effect to be:
(1) partial vibration that the present invention utilizes HM Hydraulic Motor, electrical generator and controllable current transformer that hydraulic damper is absorbed can convert power storage in electric energy-storage travelling wave tube, has improved capacity usage ratio and has reduced cal val.The energy of storage can be miscellaneous equipment power supply, such as the power motor of electric/hybrid vehicle.
(2) the present invention, according to electric energy-storage travelling wave tube state-of-charge information and Vehicular vibration information, utilizes controllable current transformer control dynamo current, can realize damping force characteristics adjustable and without outside energy supply.
(3) the present invention adopts the structure of flow regulating valve and the series connection of HM Hydraulic Motor-electrical generator, when energy recovery function lost efficacy or the state-of-charge of electric energy-storage travelling wave tube is saturated while causing power generation process to stop, system can be carried out passive vibration damping by flow regulating valve separately, has good reliability.
Accompanying drawing explanation
Fig. 1 is the hydraulic damper energy-recuperation system schematic diagram based on electric energy-storage travelling wave tube provided by the invention.
In figure: 1, piston component, 2, shock absorber cylinder body, 3, check valve, 4, check valve, 5, flow regulating valve, 6, HM Hydraulic Motor, 7, fuel tank, 8, electrical generator, 9, control unit, 10, controllable current transformer, 11, electric energy-storage travelling wave tube, 12, rodless cavity, 13, rod chamber.
Fig. 2 is the hydraulic damper energy recycling and control method diagram of circuit based on electric energy-storage travelling wave tube provided by the invention.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the hydraulic damper energy-recuperation system based on electric energy-storage travelling wave tube of the present invention comprises piston component 1 and shock absorber cylinder body 2, and piston component 1 is arranged in shock absorber cylinder body 2 and linear reciprocating motion relatively; Piston component 1 is divided into rodless cavity 12 and rod chamber 13 by the internal cavity of shock absorber cylinder body 2, oil circuit between rodless cavity 12 and rod chamber 13 connects by check valve 3, oil circuit between rodless cavity 12 and fuel tank 7 connects by check valve 4, and the oil circuit between rod chamber 13 and fuel tank 7 connects by flow regulating valve 5 and HM Hydraulic Motor 6; The projecting shaft of HM Hydraulic Motor 6 connects electrical generator 8, and the winding connection end of electrical generator 8 connects the input end of controllable current transformer 10; The mouth of controllable current transformer 10 connects electric energy-storage travelling wave tube 11, the control end connection control unit 9 of controllable current transformer 10; The vibration information of control unit 9 collection vehicle and the state-of-charge information of electric energy-storage travelling wave tube 11 and by control method, process after, the control signal of output to controllable current transformer 10.
As shown in Figure 2, the hydraulic damper energy recycling and control method based on electric energy-storage travelling wave tube of the present invention comprises the following steps: 1) control unit initialization; 2) gather the state-of-charge information of electric energy-storage travelling wave tube; 3) judge that whether the state-of-charge of electric energy-storage travelling wave tube is saturated, if so, controllable current transformer does not enable, then performs step 2); If not, execution step 4); 4) vibration information of collection vehicle; 5) according to the current target value of damping force characteristics regulation strategy output generator; 6) controllable current transformer enables and the actual current of electrical generator is controlled, then performs step 2).
Principle of work of the present invention is as follows:
(1) piston component 1 produces relative linear reciprocating motion under outside vibrational excitation with shock absorber cylinder body 2, when piston component 1 stretches out, check valve 3 is closed, check valve 4 is opened, fuel tank 7 is that rodless cavity 12 supplements fluid, and the pressure oil that rod chamber 13 is discharged is got back to fuel tank 7 through flow regulating valve 5 and HM Hydraulic Motor 6; When piston component 1 is retracted, check valve 3 is opened, and check valve 4 is closed, and the pressure oil part that rodless cavity 12 is discharged is the supplementary fluid of rod chamber 13, and another part is got back to fuel tank 7 equally after flow regulating valve 5 and HM Hydraulic Motor 6.
(2) flow regulating valve 5 and HM Hydraulic Motor 6 produce shock damping action to the pressure oil through self, and wherein the damping force characteristics of flow regulating valve 5 is fixed, and the damping force characteristics of HM Hydraulic Motor 6 can regulate by the electric current of controlling electrical generator 8.
(3) control unit 9 gathers the state-of-charge information of electric energy-storage travelling wave tube 11 and judges whether saturated, if, cannot, to electric energy-storage travelling wave tube charging, now controllable current transformer 10 be set to not enable, by flow regulating valve 5, realize the nonadjustable passive vibration damping of damping force characteristics separately; If not, the vibration information of collection vehicle, according to damping force characteristics regulation strategy, obtain again the current target value of electrical generator 8, then controllable current transformer 10 is set to enable and the actual current of electrical generator 8 is controlled, by flow regulating valve 5 and HM Hydraulic Motor 6, jointly realize half adjustable active damping of damping force characteristics, partial vibration transformation of energy become to electric energy simultaneously and be stored in electric energy-storage travelling wave tube 11.
(4) the state-of-charge information of electric energy-storage travelling wave tube 11 and the vibration information of vehicle can be measured and signal processing obtains by respective sensor.
Finally, it is also to be noted that, what more than enumerate is only a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, can also have many distortion.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention, all should think protection scope of the present invention.
Claims (2)
1. the hydraulic damper energy-recuperation system based on electric energy-storage travelling wave tube, it is characterized in that: comprise piston component (1) and shock absorber cylinder body (2), piston component (1) is arranged in shock absorber cylinder body (2) and linear reciprocating motion relatively; Piston component (1) is divided into rodless cavity (12) and rod chamber (13) by the internal cavity of shock absorber cylinder body (2), oil circuit between rodless cavity (12) and rod chamber (13) connects by check valve (3), oil circuit between rodless cavity (12) and fuel tank (7) connects by check valve (4), and the oil circuit between rod chamber (13) and fuel tank (7) connects by flow regulating valve (5) and HM Hydraulic Motor (6); The projecting shaft of HM Hydraulic Motor (6) connects electrical generator (8), and the winding connection end of electrical generator (8) connects the input end of controllable current transformer (10); The mouth of controllable current transformer (10) connects electric energy-storage travelling wave tube (11), the control end connection control unit (9) of controllable current transformer (10); The vibration information of control unit (9) collection vehicle and the state-of-charge information of electric energy-storage travelling wave tube (11) and by control method, process after, the control signal of output to controllable current transformer (10).
2. the hydraulic damper energy recycling and control method based on electric energy-storage travelling wave tube, is characterized in that: comprise the following steps: 1) control unit initialization; 2) gather the state-of-charge information of electric energy-storage travelling wave tube; 3) judge that whether the state-of-charge of electric energy-storage travelling wave tube is saturated, if so, controllable current transformer does not enable, then performs step 2); If not, execution step 4); 4) vibration information of collection vehicle; 5) according to the current target value of damping force characteristics regulation strategy output generator; 6) controllable current transformer enables and the actual current of electrical generator is controlled, then performs step 2).
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266275A (en) * | 2014-09-14 | 2015-01-07 | 深圳市沃森空调技术有限公司 | Air conditioner generating electricity through outdoor unit vibration |
| CN104455166A (en) * | 2014-10-24 | 2015-03-25 | 北京长安汽车工程技术研究有限责任公司 | Automobile and hydraulic damping energy recovery device thereof |
| CN105508351A (en) * | 2015-12-22 | 2016-04-20 | 江苏大学 | Shock absorber device with energy recovery function for vehicles |
| EP3257746A1 (en) * | 2016-06-13 | 2017-12-20 | Goodrich Actuation Systems SAS | Electro hydrostatic actuators |
| CN108454341A (en) * | 2015-10-23 | 2018-08-28 | 南安市鑫灿品牌运营有限公司 | A kind of automobile |
| US10087962B2 (en) | 2015-06-30 | 2018-10-02 | Goodrich Actuation Systems Sas | Electro hydrostatic actuators |
| CN109895576A (en) * | 2019-02-28 | 2019-06-18 | 浙江工业大学 | A kind of mixing of vehicle liquid electricity can energy regenerative Active suspension |
| CN110608142A (en) * | 2019-09-29 | 2019-12-24 | 廖志强 | Water energy conversion device and hydroelectric generating set |
| CN111779734A (en) * | 2020-07-10 | 2020-10-16 | 中国铁建重工集团股份有限公司 | Hydraulic rock drill for realizing energy recycling |
| CN113272165A (en) * | 2018-12-24 | 2021-08-17 | 马瑞利悬挂***意大利公司 | Compensation for thermal effects in vehicle suspension systems |
| DE102020202384A1 (en) | 2020-02-25 | 2021-08-26 | Zf Friedrichshafen Ag | Adjustable vibration damper |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266275A (en) * | 2014-09-14 | 2015-01-07 | 深圳市沃森空调技术有限公司 | Air conditioner generating electricity through outdoor unit vibration |
| CN104455166A (en) * | 2014-10-24 | 2015-03-25 | 北京长安汽车工程技术研究有限责任公司 | Automobile and hydraulic damping energy recovery device thereof |
| US10087962B2 (en) | 2015-06-30 | 2018-10-02 | Goodrich Actuation Systems Sas | Electro hydrostatic actuators |
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| CN108454341A (en) * | 2015-10-23 | 2018-08-28 | 南安市鑫灿品牌运营有限公司 | A kind of automobile |
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| EP3257746A1 (en) * | 2016-06-13 | 2017-12-20 | Goodrich Actuation Systems SAS | Electro hydrostatic actuators |
| CN113272165A (en) * | 2018-12-24 | 2021-08-17 | 马瑞利悬挂***意大利公司 | Compensation for thermal effects in vehicle suspension systems |
| CN113272165B (en) * | 2018-12-24 | 2024-04-16 | 马瑞利悬挂***意大利公司 | Compensation of thermal effects in vehicle suspension systems |
| CN109895576A (en) * | 2019-02-28 | 2019-06-18 | 浙江工业大学 | A kind of mixing of vehicle liquid electricity can energy regenerative Active suspension |
| CN110608142A (en) * | 2019-09-29 | 2019-12-24 | 廖志强 | Water energy conversion device and hydroelectric generating set |
| DE102020202384A1 (en) | 2020-02-25 | 2021-08-26 | Zf Friedrichshafen Ag | Adjustable vibration damper |
| CN111779734A (en) * | 2020-07-10 | 2020-10-16 | 中国铁建重工集团股份有限公司 | Hydraulic rock drill for realizing energy recycling |
| CN111779734B (en) * | 2020-07-10 | 2022-06-24 | 中国铁建重工集团股份有限公司 | Hydraulic rock drill for realizing energy recycling |
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Application publication date: 20140416 |