CN104477153A - Electronic hydraulic regulator and automotive brake energy recovery system - Google Patents
Electronic hydraulic regulator and automotive brake energy recovery system Download PDFInfo
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- CN104477153A CN104477153A CN201410666549.4A CN201410666549A CN104477153A CN 104477153 A CN104477153 A CN 104477153A CN 201410666549 A CN201410666549 A CN 201410666549A CN 104477153 A CN104477153 A CN 104477153A
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- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 239000008157 edible vegetable oil Substances 0.000 claims description 3
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 3
- 150000004692 metal hydroxides Chemical class 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
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- 235000010446 mineral oil Nutrition 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 230000002441 reversible effect Effects 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 2
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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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- 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
- B60T13/74—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 electrical assistance or drive
-
- 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/343—Systems characterised by their lay-out
- B60T8/344—Hydraulic systems
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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
- B60T2220/00—Monitoring, detecting driver behaviour; Signalling thereof; Counteracting thereof
- B60T2220/04—Pedal travel sensor, stroke sensor; Sensing brake request
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
- Braking Arrangements (AREA)
- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The invention provides an electronic hydraulic regulator and an automotive brake energy recovery system using the electronic hydraulic regulator; the electronic hydraulic regulator works on the basis of the relevant characteristics of the viscosity of an electrorheological fluid material and the electric field and controls the viscosity of the electrorheological fluid material by using voltage; when the viscosity of the electrorheological fluid material is changed, the flow of a brake fluid flowing to a proportional valve is changed an the different brake forces are generated. The electronic hydraulic regulator is connected in series with a hydraulic pipeline of an automotive brake system to form the automotive brake energy recovery system; the fine regulation of the brake force is controlled by changing the viscosity of the electrorheological fluid material in the electronic hydraulic regulator by using control voltage, and assists with the distribution requirements of electric brake and hydraulic brake power distributors to the brake forces, so that the recovery of the brake kinetic energy of an electric vehicle is realized and the recovery problem of the brake energy in the electric vehicle is solved; the driving mileage of the electric vehicle is improved and the performance of the electric vehicle is improved obviously.
Description
Technical field
The present invention relates to automobile brake technical field, relate to a kind of electro-hydraulic regulating control more specifically and use the Recovering Waste Energy of Braking in Automobiles system of described electro-hydraulic regulating control.
Background technology
At present, domestic and international most automobile-used brake system still reaches braking object based on fluid control mechanical pressure, its principle: in car brakeing process, step on brake pedal, brake pedal force amplifies through vacuum booster, hydraulic oil under the promotion of vacuum booster power output through oil pipe to apportioning valve, and then promote drg, the slipper of drg is engaged with wheel nave under pressure, plays brake action.The kinetic energy of automobile realizes kinetic energy consumption by friction completely, and then realizes car brakeing.In this mode, braking energy slatterns completely.Along with the raising of people's environmental consciousness and the development of energy recoverable technology, utilize Brake energy recovery technology can realize the recycling of 10% ~ 20% of braking energy, use in electronlmobil, for design course continuation mileage at about 100km, 10% ~ 20% energy reclaimed, automobile can be made to extend the course continuation mileage of 5 ~ 10km, and this is for electronlmobil, is very practical technology.But do not take into full account the recycling of this braking energy in existing automobile brake technology, in prior art, there is no a kind of Recovering Waste Energy of Braking in Automobiles system that can be good at meeting the practical requirement in market yet.
Summary of the invention
The present invention is based on above-mentioned prior art problem, innovation provides a kind of for the electro-hydraulic regulating control in Recovering Waste Energy of Braking in Automobiles system and Recovering Waste Energy of Braking in Automobiles system, described electro-hydraulic regulating control is based on the characteristic work relevant to electric field of electrorheological fluid material viscosity, described electro-hydraulic regulating control is connected brake system of car hydraulic tubing in form Recovering Waste Energy of Braking in Automobiles system, the viscosity of electrorheological fluid material in electro-hydraulic regulating control is changed by control voltage, and then change the distribution and transmission of brake fluid pressure, achieve the reasonable adjusting to braking force, solve Brake energy recovery problem in battery-driven car, improve the course continuation mileage of battery-driven car, and then significantly improve the performance of battery-driven car.
It is as follows that the present invention solves the problems of the technologies described above taked technical scheme:
A kind of electro-hydraulic regulating control, comprise: hydraulic efficiency governing outer shell 1, hydraulic efficiency governing inner casing 2, front liquid dividing plate 3, rear liquid dividing plate 4, negative electrode substrate 5, positive electrode substrate 6, electrorheological fluid material 10 and braking liquid 11, described hydraulic efficiency governing inner casing 2 and hydraulic efficiency governing outer shell 1 combine the hydraulic cylinder structure being formed and close, described front hydraulic pressure dividing plate 3 is arranged in the inner chamber of hydraulic efficiency governing outer shell 1, and brake sap cavity before forming with hydraulic efficiency governing outer shell 1, described rear hydraulic pressure dividing plate 4 is arranged in the inner chamber of hydraulic efficiency governing inner casing 1, and brake sap cavity after forming with hydraulic efficiency governing inner casing 2, described braking liquid 11 is filled in described front braking sap cavity and rear braking sap cavity, hydraulic efficiency governing chamber is formed between described front liquid dividing plate 3 and rear liquid dividing plate 4, described electrorheological fluid material 10 is full of described hydraulic efficiency governing chamber, described positive electrode substrate 6 and negative electrode substrate 5 are arranged in described hydraulic efficiency governing chamber, the rheological behavior of described electrorheological fluid material 10 and physical condition change with positive electrode substrate 6 and negative electrode substrate 5 execute alive change.
Further according to electro-hydraulic regulating control of the present invention, the tube structure that wherein said hydraulic efficiency governing inner casing 2 and hydraulic efficiency governing outer shell 1 are one end open, one end is closed, described hydraulic efficiency governing inner casing 2 is rectified right mode with opening and is nested in hydraulic efficiency governing outer shell 1, form described hydraulic cylinder structure, the closed end of described hydraulic efficiency governing outer shell 1 offers braking liquid inlet, and the closed end of described hydraulic efficiency governing inner casing 2 offers braking liquid delivery port.
Further according to electro-hydraulic regulating control of the present invention, wherein said negative electrode substrate 5 and positive electrode substrate 6 all have pectination, and it is interlaced just to setting, the base of described negative electrode substrate is close to the side wall inner surfaces setting of hydraulic efficiency governing outer shell 1, the base of described positive electrode substrate 6 is arranged with insulation material layer 9, and the side wall inner surfaces that described insulation material layer 9 is close to hydraulic efficiency governing outer shell 1 is arranged.
Further according to electro-hydraulic regulating control of the present invention, wherein also include negative pole joint pin 7 and positive pole joint pin 8, described negative pole joint pin 7 is arranged through hydraulic efficiency governing outer shell 1 from the base of negative electrode substrate 5, described positive pole joint pin 8 is arranged through insulation material layer 9 and hydraulic efficiency governing outer shell 1 from the base of positive electrode substrate 6, and described positive pole joint pin 8 and hydraulic efficiency governing outer shell 1 are insulated by insulation material layer 9.
Further according to electro-hydraulic regulating control of the present invention, wherein also include leakproof shock absorber, described leakproof shock absorber is arranged at the sidewall front end of hydraulic efficiency governing outer shell 1, and is communicated in described front braking sap cavity, provides pressure release buffering and auxiliary braking for braking forward sap cavity.
Further according to electro-hydraulic regulating control of the present invention, wherein said leakproof shock absorber comprises housing, leakproof dividing plate 12, the preset spring 13 of pressure and pressure threshold governing screw 14, described leakproof dividing plate 12 and the preset spring of pressure 13 are arranged in described housing, the preset spring 13 of described pressure is arranged between leakproof dividing plate and lower leakproof dividing plate, described pressure threshold governing screw 14 one end is connected to leakproof dividing plate, the other end is exposed to outside described housing, the leakproof cushion chamber being communicated with described front braking sap cavity is made up of described lower leakproof dividing plate and housing, the threshold pressure entering leakproof cushion chamber inside brake liquid is regulated by described pressure threshold governing screw 14.
Further according to electro-hydraulic regulating control of the present invention, wherein said electrorheological fluid material 10 is formed at the iknsulating liquid of low-k by the solid dielectric even particulate dispersion with high-k of nanometer to micro-meter scale, the viscosity of described electrorheological fluid material 10 becomes large with the increase of external electric field, and solid liquid reversible transformation can be there is, wherein said solid dielectric particle is selected from silica gel, aluminosilicate, composite metal oxide, complex metal hydroxide, one or more in semiconducting polymer's particle, described iknsulating liquid is selected from silicone oil, one in edible oil or mineral oil.
A kind of Recovering Waste Energy of Braking in Automobiles system, comprise brake pedal and position transduser, vacuum booster, master brake cylinder, apportioning valve, electric braking and hydraulic braking force distributing box, entire car controller, electric machine controller, the electro-hydraulic regulating control of drive motor and the above-mentioned any one of the present invention, described brake pedal and position transduser are mechanically connected to vacuum booster, described vacuum booster is mechanically connected to master brake cylinder, described master brake cylinder is connected with oil main line and auxiliary oil pipe, and store braking liquid in described master brake cylinder, the mouth of described oil main line and auxiliary oil pipe is connected to described apportioning valve, described apportioning valve is connected to wheel brake, described oil main line and auxiliary oil pipe are provided with the electro-hydraulic regulating control of the above-mentioned any one of the present invention, described electric braking and hydraulic braking force distributing box are electrically connected at described brake pedal and position transduser, entire car controller and electro-hydraulic regulating control, described entire car controller is electrically connected at described electric machine controller, described electric machine controller is electrically connected at described drive motor, the brake pedal position signal that described electric braking and hydraulic braking force distributing box come in conjunction with brake pedal and position transduser transmission based on the ABS speed of a motor vehicle that car load CAN network obtains judges braking deceleration, and regulate and distribute brake snub control signal to electro-hydraulic regulating control and entire car controller in real time, realize motor braking and hydraulic braking combination.
Further according to Recovering Waste Energy of Braking in Automobiles system of the present invention, the braking liquid inlet of wherein said electro-hydraulic regulating control is connected to described oil main line or auxiliary oil pipe, thus the front braking sap cavity of described electro-hydraulic regulating control is communicated in described master brake cylinder by described oil main line or auxiliary oil pipe, the braking liquid delivery port of described electro-hydraulic regulating control is connected to described oil main line or auxiliary oil pipe, thus the rear braking sap cavity of described electro-hydraulic regulating control is communicated in described apportioning valve by described oil main line or auxiliary oil pipe, described electric braking and hydraulic braking force distributing box are electrically connected at plus terminal and the cell negative terminal of described electro-hydraulic regulating control.
Further according to Recovering Waste Energy of Braking in Automobiles system of the present invention, wherein said electric braking and hydraulic braking force distributing box judge when needing larger braking deceleration, the resistance controlling electro-hydraulic regulating control increases to reduce the brake fluid flow being provided to apportioning valve, controls entire car controller simultaneously and increases brake torque.
At least following technique effect can be reached by technical scheme of the present invention:
1), the present invention adopts voltage source to control to the control of electrorheological fluid material, and consumed energy is little, contrast, more power saving with employing electric machine control form, and control conveniently, efficiency is higher;
2), the present invention is based on electrorheological fluid material solid-liquid conversion carry out regulating and distributing of brake fluid pressure, adopt voltage control mode, braking response is sensitiveer and timely, ensure that braking safety;
3), electro-hydraulic regulating control of the present invention possesses good commonality, the EV automobile of all equipment brake power recovering devices can be applicable to, by serial electronic hydraulic pressure regulator in oil main line and auxiliary oil pipe, get final product real-time regulating brake force, failure-free meets the requirement to braking force compensating device real-time, reliability under composite brakig pattern, and marketing has a extensive future;
4), Recovering Waste Energy of Braking in Automobiles system provided by the present invention efficiently solves Brake energy recovery problem in electronlmobil, saved energy resource, improve the course continuation mileage of electronlmobil, the fine environmental-protecting performance requirement meeting electronlmobil.
Accompanying drawing explanation
Accompanying drawing 1 is the structural principle schematic diagram of electro-hydraulic regulating control of the present invention;
Accompanying drawing 2 is integral structure schematic diagrams of Recovering Waste Energy of Braking in Automobiles system of the present invention;
In figure, the implication of each Reference numeral is as follows:
1-hydraulic efficiency governing outer shell, 2-hydraulic efficiency governing inner casing, liquid dividing plate before 3-, liquid dividing plate after 4-, 5-negative electrode substrate, 6-positive electrode substrate, 7-negative pole joint pin, 8-positive pole joint pin, 9-insulation material layer, 10-electrorheological fluid material, 11-braking liquid, 12-leakproof dividing plate, the preset spring of 13-pressure, 14-pressure threshold governing screw.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail, to enable those skilled in the art understanding the present invention clearly, but does not therefore limit the scope of the invention.
As shown in Figure 1, electro-hydraulic regulating control entirety of the present invention comprises hydraulic efficiency governing outer shell 1, hydraulic efficiency governing inner casing 2, front liquid dividing plate 3, rear liquid dividing plate 4, negative electrode substrate 5, positive electrode substrate 6, negative pole joint pin 7, positive pole joint pin 8, insulating material 9, electrorheological fluid material 10, braking liquid 11 and leakproof shock absorber.Described hydraulic efficiency governing inner casing 2 and hydraulic efficiency governing outer shell 1 all have one end open, the tube structure that one end is closed, and the external diameter of hydraulic efficiency governing inner casing 2 equals the internal diameter of hydraulic efficiency governing outer shell 1, in the mode that opening is relative, described hydraulic efficiency governing inner casing 2 is nested in hydraulic efficiency governing outer shell 1, form the hydraulic cylinder structure closed, liquid dividing plate 3 and rear liquid dividing plate 4 before being provided with in described hydraulic cylinder structure inner chamber, wherein front hydraulic pressure dividing plate 3 is arranged radially in the inner chamber of hydraulic efficiency governing outer shell 1, and brake sap cavity before jointly being formed with hydraulic efficiency governing outer shell 1, store braking liquid 11 therebetween, described rear hydraulic pressure dividing plate 3 is arranged radially in the inner chamber of hydraulic efficiency governing inner casing 2, and brake sap cavity after jointly being formed with hydraulic efficiency governing inner casing 2, store braking liquid 11 therebetween.The closed end of described hydraulic efficiency governing outer shell 1 is connected to master brake cylinder by hydraulic pipe, thus master brake cylinder is communicated in the front braking sap cavity in hydraulic efficiency governing outer shell 1, for providing braking liquid 11 to it.Described pressure regulates the closed end of inner casing 2 to be connected to apportioning valve by hydraulic pipe, thus the rear braking sap cavity in hydraulic efficiency governing inner casing 2 is communicated in apportioning valve, for providing braking liquid 11 to apportioning valve.Hydraulic efficiency governing chamber is formed between front liquid dividing plate 3 and rear liquid dividing plate 4, positive electrode substrate 6 and negative electrode substrate 5 is provided with in described hydraulic efficiency governing chamber, described negative electrode substrate 5 and positive electrode substrate 6 all have pectination, and interlaced setting, period forms uniform electric field.The base of concrete described negative electrode substrate is close to the inwall upper surface setting of hydraulic efficiency governing outer shell 1, the base of described positive electrode substrate 6 is arranged with insulation material layer 9, the interior lower surface that described insulation material layer 9 is close to hydraulic efficiency governing outer shell 1 is arranged, described positive electrode substrate 6 and negative electrode substrate 5 all connect with the front end face of hydraulic efficiency governing inner casing 2 is low, electrorheological fluid material 10 is filled with between positive electrode substrate 6 and negative electrode substrate 5 and in whole hydraulic efficiency governing chamber, the base of described negative electrode substrate 5 is upward through hydraulic efficiency governing outer shell 1 and is provided with negative pole joint pin 7, the base of described positive electrode substrate 6 is passed down through insulation material layer 9 and hydraulic efficiency governing outer shell 1 is provided with positive pole joint pin 8, and be also provided with insulation material layer 9 between positive pole joint pin 8 and hydraulic efficiency governing outer shell 1, by described positive pole joint pin 8 and negative pole joint pin 7 for positive electrode substrate 6 and negative electrode substrate 5 provide regulable control voltage, and then control the electric field that positive electrode substrate 6 and negative electrode substrate 5 formed in hydraulic efficiency governing chamber.Described leakproof shock absorber is arranged at the sidewall front end of hydraulic efficiency governing outer shell 1, and be communicated in described front braking sap cavity, described leakproof shock absorber comprises housing, leakproof dividing plate 12, the preset spring 13 of pressure and pressure threshold governing screw 14, described leakproof dividing plate 12 and the preset spring 13 of pressure are arranged in housing, the preset spring of described pressure is arranged between upper and lower two pieces of leakproof dividing plates, described pressure threshold governing screw 14 one end is connected to leakproof dividing plate, other end building is in outside housing, the leakproof cushion chamber of braking sap cavity before lower leakproof dividing plate is communicated with housing composition.When electrorheological fluid material becomes solid, before master brake cylinder exports to, the braking liquid of braking sap cavity will squeeze lower leakproof dividing plate and flow in leakproof cushion chamber, realize the buffer memory of braking liquid, the preset spring of pressure is used for arranging the maxim of brake fluid pressure, the threshold pressure entering leakproof cushion chamber inside brake liquid can be regulated by pressure threshold governing screw 14, simultaneously electrorheological fluid material from solid-state revert to liquid state time, braking sap cavity before the pressure of the preset spring 12 of pressure can be utilized automatically to be pushed back by the braking liquid in leakproof cushion chamber, the elastic force of the preset spring of pressure is utilized to apply braking force for braking liquid is auxiliary, prevent pressure jump, affect deceleration and stopping performance.
Described electrorheological fluid material 10 can adopt electrorheological fluid suspending fluid well known in the art, the suspended state complex fluid mixed by nanometer to solid dielectric particle and the iknsulating liquid of micro-meter scale forms, and its rheological behavior and physical condition change with the change of extra electric field.When not having External Electrical Field, electrorheological fluid suspending fluid is usually in liquid state, and its viscosity and oil are almost (generally moor 0.1, moor as viscosity unit, generally represent with P, 1P=0.1*Pa*S).When External Electrical Field is in electrorheological fluid, its viscosity becomes large with the increase of external electric field, becomes similar gluey bituminous material.When external electric field is enough large (being generally greater than 1000V/mm), the retrogradation of electrorheological fluid suspending fluid, hardening, until stop flowing, reach solidification, this " liquid-solid " changes is reversible, and after electric field is cancelled, electrorheological fluid suspending fluid is thinning immediately, recover original liquid state, its fringe time (response time) is general in ms rank.On composition material, electrorheological fluid material (ER) is usually dispersed in by the solia particle with high-k in the iknsulating liquid of low-k and is formed, and the character of particulate solid material determines the quality of ER performance, is the key component of ER.Particulate solid material is normally a kind of to be made up of the fine object with high, relative specific inductance capacity and stronger polarity of nanometer to micro-meter scale size, multiple material can be adopted to make, conventional organic and/or inorganic materials (as silica gel, aluminosilicate, composite metal oxide, complex metal hydroxide), High molecular material (as semiconducting polymer's particle) and compound type ER material (can be the compound of the compound of different inorganic material, the compound of different High molecular materials, inorganic material and High molecular material).Iknsulating liquid has silicone oil, edible oil, mineral oil usually, and iknsulating liquid should have higher boiling point, and stability, resistance to corrosion are good, good insulation preformance, high pressure resistant, low viscosity (LV), without having these character of good fluidity under electric field action.
The electro-hydraulic regulating control of the proposition said structure of the present invention's innovation, and innovation be applied in brake system of car, form Recovering Waste Energy of Braking in Automobiles system as shown in Figure 2, described Recovering Waste Energy of Braking in Automobiles system comprises brake pedal and position transduser, vacuum booster, master brake cylinder, electro-hydraulic regulating control, apportioning valve, electric braking and hydraulic braking force distributing box, entire car controller (VMS), car load electric machine controller and drive motor.As shown in Figure 2, wherein brake pedal and position transduser are connected to vacuum booster, brake pedal is used for providing speed-slackening signal to input, position transduser is for detecting the position of brake pedal, stepping process is carried out to car load deceleration/decel, according to different positions, different braking decelerations is provided, suitable braking deceleration power is provided to vacuum booster by brake pedal and position transduser, described vacuum booster is connected to master brake cylinder, by vacuum booster, the deceleration force that brake pedal and position transduser transmit is amplified after-applied on master brake cylinder, described master brake cylinder is connected with oil main line and auxiliary oil pipe, and in master brake cylinder, store hydraulic oil braking liquid, brake fluid pressure is entered oil main line and auxiliary oil pipe by the braking deceleration power that described master brake cylinder applies according to vacuum booster, the mouth of described oil main line and auxiliary oil pipe is connected to apportioning valve, described apportioning valve is connected to the near front wheel brake disc, off front wheel brake disc, left rear wheel brake disc, off hind wheel brake disc, hydraulic braking force for being provided by master brake cylinder exports wheel brake to, attainment brake hydraulic pressure.That innovates is provided with described electro-hydraulic regulating control on described oil main line and auxiliary oil pipe, be described for oil main line, the front braking sap cavity of described electro-hydraulic regulating control is communicated in master brake cylinder by leading portion oil main line, the rear braking sap cavity of electro-hydraulic regulating control is communicated in apportioning valve by back segment oil main line, and then the braking liquid that master brake cylinder provides exports apportioning valve to after electro-hydraulic regulating control.The electro-hydraulic regulating control that described oil main line and auxiliary oil pipe are arranged is connected to electric braking and hydraulic braking force distributing box, described brake pedal and position transduser are connected to electric braking and hydraulic braking force distributing box simultaneously, described electric braking and hydraulic braking force distributing box are connected to entire car controller, described entire car controller is connected to car load electric machine controller, and described car load electric machine controller is connected to drive motor.Described electric braking and hydraulic braking force distributing box are according to the ABS speed of a motor vehicle obtained from car load CAN network, in conjunction with brake pedal position signal, carry out processing rear judgement and now brake the great braking deceleration of needs, electric braking and hydraulic braking force distributing box send pure electric braking moment of torsion threshold values by CAN networking to entire car controller, coordinate car load electric machine controller after entire car controller (VMS module) receives torque and apply corresponding command brake torque to drive motor, now electric braking and hydraulic braking force distributing box calculate the deceleration/decel of car load in real time by car load CAN network, and real-time adjustable brake deceleration/decel, the deceleration/decel that monitoring car load is real after VMS controls, make car load deceleration/decel in the scope controlled, thus according to car load need braking deceleration large young pathbreaker's braking force reasonable distribution to drive motor and electro-hydraulic regulating control, realize the reasonable combination of electric braking and hydraulic braking.Described drive motor is dynamotor, simultaneously as the electrical power source of electronlmobil, again can simultaneously based on electrical regeneration braking operation in generator mode, utilize in electrical motor stalling, produce one with turn to contrary electromagnetic torque, as braking force, electrical motor is stopped operating and reach electric braking, kinetic transformation during braking is become electrical power storage simultaneously.Described electro-hydraulic regulating control is described above, can regulate the brake fluid pressure of input apportioning valve for realizing, according to the requirement of electric braking and hydraulic braking force distributing box, change the pressure being input to apportioning valve hydraulic oil, the adjustment of attainment brake hydraulic pressure power size.
Specific works principle and the process of Recovering Waste Energy of Braking in Automobiles system of the present invention are:
In car brakeing process, pin steps on brake pedal, brake pedal force is provided to master brake cylinder after vacuum booster amplifies, braking liquid force feed in master brake cylinder enters into electro-hydraulic regulating control through oil main line and auxiliary oil pipe under the promotion of the corresponding power output of vacuum booster, described electric braking and hydraulic braking force distributing box are according to the ABS speed of a motor vehicle obtained from car load CAN network, in conjunction with brake pedal position signal, judge that now braking needs great braking deceleration, if braking deceleration comparatively large (exceeding preset standard), illustrates that car load speed needs larger braking energy, now electric braking and hydraulic braking force distributing box are to electro-hydraulic regulator output voltage control signal, increase the resistance of electro-hydraulic regulating control, reduce the pressure that electro-hydraulic regulating control outputs to braking liquid force feed in apportioning valve, concrete control applies high tension voltage to positive pole joint pin in electro-hydraulic regulating control and negative pole joint pin, under making the electrorheological fluid material between two hydraulic pressure dividing plates be in highfield, the viscosity of electrorheological fluid material will change, electrorheological fluid material is by retrogradation, hardening, the flowing power of liquid between two liquid dividing plates is caused to be deteriorated like this, further the pressure that the brake fluid pressure causing exporting from master brake cylinder is delivered to apportioning valve through electro-hydraulic regulating control is reduced, the brake fluid flow flowing into apportioning valve reduces, thus reduce the hydraulic braking force exported to wheel brake, the hydraulic braking force reduction of apportioning valve is distributed to like this by electric braking and hydraulic braking force distributing box, electric braking and hydraulic braking force distributing box distribute to the braking deceleration increase of entire car controller simultaneously, entire car controller exports larger brake request to car load electric machine controller, and drive motor works in electrical regeneration braking, by produce in braking procedure one with turn to contrary electromagnetic torque as braking force, electrical motor to be stopped operating to reach electric braking, such drive motor can utilize pure braking function as much as possible, reclaim the kinetic energy of automobile, kinetic transformation is become electrical power storage.If electric braking and hydraulic braking force distributing box are according to the ABS speed of a motor vehicle obtained from car load CAN network, when judging that car load deceleration/decel is less in conjunction with brake pedal position signal, then preferentially increase the brake torque that entire car controller applies, if the brake torque that now VMS applies can not meet the requirement of car load deceleration/decel, electric braking and hydraulic braking force distributing box control electro-hydraulic regulating control simultaneously, the resistance of electro-hydraulic regulating control is reduced, namely the voltage that positive pole joint pin and negative pole joint pin apply in electro-hydraulic regulating control is reduced, the electrorheological fluid material in electro-hydraulic regulating control is made to become the good liquid of flowing power, improve the brake fluid flow be input in apportioning valve, thus scaling up valve exports the hydraulic braking force of wheel brake to, car load braking force is increased, the deceleration/decel of car load is made to reach the requirement of control.
The present invention is by electric braking and the signal such as the hydraulic braking force distributing box Real-time Collection speed of a motor vehicle and brake pedal position, judge the size of required braking force, and reasonable distribution is carried out to braking force, by very fast for the speed of a motor vehicle, need the braking in larger braking force situation more distribute to drive motor, utilize pure electric regenerative braking that larger kinetic energy is converted to power storage, realize Brake energy recovery.Described electric braking and hydraulic braking force distributing box can calculate the deceleration/decel of car load in real time by car load CAN network, and real-time adjustable brake deceleration/decel, the deceleration/decel that monitoring car load is real after VMS controls, make car load deceleration/decel in the scope controlled, thus according to car load need braking deceleration large young pathbreaker's braking force reasonable distribution to drive motor and electro-hydraulic regulating control, realize the reasonable combination of electric braking and hydraulic braking.Described electro-hydraulic regulating control is by the viscosity size of voltage control electrorheological fluid material, when the viscosity-modifying of electrorheological fluid material, change causing the flow characteristic of liquid between two liquid dividing plates, the hydraulic oil exported from master brake cylinder will be caused further, its hydraulic coupling brakes sap cavity hydraulic coupling after being passed to after electro-hydraulic regulating control will change, the brake fluid flow being pressed into apportioning valve is directly caused to change, flow into the difference of apportioning valve brake fluid flow, the braking force size produced is also different, by utilizing the meticulous adjustment of viscosity-modifying and then control braking force, thus auxiliary braking energy-recuperation system is to the demand of braking force, achieve the recovery of brake of electric vehicle kinetic energy.Solve Brake energy recovery problem in battery-driven car, improve the course continuation mileage of battery-driven car, and then significantly improve the performance of battery-driven car.
Below be only that the preferred embodiment of the present invention is described; technical scheme of the present invention is not limited to this; the any known distortion that those skilled in the art do on the basis that major technique of the present invention is conceived all belongs to the claimed technology category of the present invention, and the concrete protection domain of the present invention is as the criterion with the record of claims.
Claims (10)
1. an electro-hydraulic regulating control, it is characterized in that, comprise: hydraulic efficiency governing outer shell (1), hydraulic efficiency governing inner casing (2), front liquid dividing plate (3), rear liquid dividing plate (4), negative electrode substrate (5), positive electrode substrate (6), electrorheological fluid material (10) and braking liquid (11), described hydraulic efficiency governing inner casing (2) and hydraulic efficiency governing outer shell (1) combine the hydraulic cylinder structure being formed and close, described front hydraulic pressure dividing plate (3) is arranged in the inner chamber of hydraulic efficiency governing outer shell (1), and brake sap cavity before forming with hydraulic efficiency governing outer shell (1), described rear hydraulic pressure dividing plate (4) is arranged in the inner chamber of hydraulic efficiency governing inner casing (1), and brake sap cavity after forming with hydraulic efficiency governing inner casing (2), described braking liquid (11) is filled in described front braking sap cavity and rear braking sap cavity, hydraulic efficiency governing chamber is formed between described front liquid dividing plate (3) and rear liquid dividing plate (4), described electrorheological fluid material (10) is full of described hydraulic efficiency governing chamber, described positive electrode substrate (6) and negative electrode substrate (5) are arranged in described hydraulic efficiency governing chamber, the rheological behavior of described electrorheological fluid material (10) and physical condition change with positive electrode substrate (6) and negative electrode substrate (5) execute alive change.
2. electro-hydraulic regulating control according to claim 1, it is characterized in that, the tube structure that described hydraulic efficiency governing inner casing (2) and hydraulic efficiency governing outer shell (1) are one end open, one end is closed, described hydraulic efficiency governing inner casing (2) is rectified right mode with opening and is nested in hydraulic efficiency governing outer shell (1), form described hydraulic cylinder structure, the closed end of described hydraulic efficiency governing outer shell (1) offers braking liquid inlet, and the closed end of described hydraulic efficiency governing inner casing (2) offers braking liquid delivery port.
3. electro-hydraulic regulating control according to claim 1 and 2, it is characterized in that, described negative electrode substrate (5) and positive electrode substrate (6) all have pectination, and it is interlaced just to setting, the base of described negative electrode substrate is close to the side wall inner surfaces setting of hydraulic efficiency governing outer shell (1), the base of described positive electrode substrate (6) is arranged with insulation material layer (9), and the side wall inner surfaces that described insulation material layer (9) is close to hydraulic efficiency governing outer shell (1) is arranged.
4. electro-hydraulic regulating control according to claim 3, it is characterized in that, also include negative pole joint pin (7) and positive pole joint pin (8), described negative pole joint pin (7) is arranged through hydraulic efficiency governing outer shell (1) from the base of negative electrode substrate (5), described positive pole joint pin (8) is arranged through insulation material layer (9) and hydraulic efficiency governing outer shell (1) from the base of positive electrode substrate (6), and described positive pole joint pin (8) and hydraulic efficiency governing outer shell (1) are insulated by insulation material layer (9).
5. the electro-hydraulic regulating control according to any one of claim 1-4, it is characterized in that, also include leakproof shock absorber, described leakproof shock absorber is arranged at the sidewall front end of hydraulic efficiency governing outer shell (1), and be communicated in described front braking sap cavity, provide pressure release buffering and auxiliary braking for braking forward sap cavity.
6. electro-hydraulic regulating control according to claim 5, it is characterized in that, described leakproof shock absorber comprises housing, leakproof dividing plate (12), the preset spring of pressure (13) and pressure threshold governing screw (14), described leakproof dividing plate (12) and the preset spring of pressure (13) are arranged in described housing, the preset spring of described pressure (13) is arranged between leakproof dividing plate and lower leakproof dividing plate, described pressure threshold governing screw (14) one end is connected to leakproof dividing plate, the other end is exposed to outside described housing, the leakproof cushion chamber being communicated with described front braking sap cavity is made up of described lower leakproof dividing plate and housing, the threshold pressure of leakproof cushion chamber inside brake liquid is entered by the adjustment of described pressure threshold governing screw (14).
7. the electro-hydraulic regulating control according to any one of claim 1-6, it is characterized in that, described electrorheological fluid material (10) is formed in the iknsulating liquid of low-k by the solid dielectric even particulate dispersion with high-k of nanometer to micro-meter scale, the viscosity of described electrorheological fluid material (10) becomes large with the increase of external electric field, and solid liquid reversible transformation can be there is, wherein said solid dielectric particle is selected from silica gel, aluminosilicate, composite metal oxide, complex metal hydroxide, one or more in semiconducting polymer's particle, described iknsulating liquid is selected from silicone oil, one in edible oil or mineral oil.
8. a Recovering Waste Energy of Braking in Automobiles system, it is characterized in that, comprise brake pedal and position transduser, vacuum booster, master brake cylinder, apportioning valve, electric braking and hydraulic braking force distributing box, entire car controller, electric machine controller, drive motor and the electro-hydraulic regulating control described in any one of claim 1-7, described brake pedal and position transduser are mechanically connected to vacuum booster, described vacuum booster is mechanically connected to master brake cylinder, described master brake cylinder is connected with oil main line and auxiliary oil pipe, and store braking liquid in described master brake cylinder, the mouth of described oil main line and auxiliary oil pipe is connected to described apportioning valve, described apportioning valve is connected to wheel brake, described oil main line and auxiliary oil pipe are provided with the electro-hydraulic regulating control described in any one of claim 1-7, described electric braking and hydraulic braking force distributing box are electrically connected at described brake pedal and position transduser, entire car controller and electro-hydraulic regulating control, described entire car controller is electrically connected at described electric machine controller, described electric machine controller is electrically connected at described drive motor, the brake pedal position signal that described electric braking and hydraulic braking force distributing box come in conjunction with brake pedal and position transduser transmission based on the ABS speed of a motor vehicle that car load CAN network obtains judges braking deceleration, and regulate and distribute brake snub control signal to electro-hydraulic regulating control and entire car controller in real time, realize motor braking and hydraulic braking combination.
9. Recovering Waste Energy of Braking in Automobiles system according to claim 8, it is characterized in that, the braking liquid inlet of described electro-hydraulic regulating control is connected to described oil main line or auxiliary oil pipe, thus the front braking sap cavity of described electro-hydraulic regulating control is communicated in described master brake cylinder by described oil main line or auxiliary oil pipe, the braking liquid delivery port of described electro-hydraulic regulating control is connected to described oil main line or auxiliary oil pipe, thus the rear braking sap cavity of described electro-hydraulic regulating control is communicated in described apportioning valve by described oil main line or auxiliary oil pipe, described electric braking and hydraulic braking force distributing box are electrically connected at plus terminal and the cell negative terminal of described electro-hydraulic regulating control.
10. Recovering Waste Energy of Braking in Automobiles system according to claim 8 or claim 9, it is characterized in that, described electric braking and hydraulic braking force distributing box judge when needing larger braking deceleration, the resistance controlling electro-hydraulic regulating control increases to reduce the brake fluid flow being provided to apportioning valve, controls entire car controller simultaneously and increases brake torque.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108656956A (en) * | 2017-03-27 | 2018-10-16 | 杭州长江汽车有限公司 | Electric vehicle brake method, system and electric vehicle |
| CN109017739A (en) * | 2017-06-08 | 2018-12-18 | 罗伯特·博世有限公司 | Method for determining the viscosity of the pressure medium in pressure medium circuit |
| CN109795326A (en) * | 2019-01-28 | 2019-05-24 | 汉腾汽车有限公司 | Hydrogen cell automobile brake energy recovering system and its method for recovering brake energy |
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| CN101566211B (en) * | 2009-06-01 | 2013-06-19 | 奇瑞汽车股份有限公司 | Damping regulator and electronic brake pedal sense simulator |
| CN101982356B (en) * | 2010-11-14 | 2012-07-25 | 江苏技术师范学院 | Automobile brake pedal mechanism and pedal feeling simulator thereof |
| CN103697090A (en) * | 2014-01-03 | 2014-04-02 | 青岛农业大学 | Seven-stage adjustable rotary type electrorheological fluid brake |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656956A (en) * | 2017-03-27 | 2018-10-16 | 杭州长江汽车有限公司 | Electric vehicle brake method, system and electric vehicle |
| CN108656956B (en) * | 2017-03-27 | 2022-09-23 | 杭州长江汽车有限公司 | Electric automobile braking method and system and electric automobile |
| CN109017739A (en) * | 2017-06-08 | 2018-12-18 | 罗伯特·博世有限公司 | Method for determining the viscosity of the pressure medium in pressure medium circuit |
| CN109017739B (en) * | 2017-06-08 | 2022-04-15 | 罗伯特·博世有限公司 | Method for determining the viscosity of a pressure medium in a pressure medium circuit |
| CN109795326A (en) * | 2019-01-28 | 2019-05-24 | 汉腾汽车有限公司 | Hydrogen cell automobile brake energy recovering system and its method for recovering brake energy |
| CN111497628A (en) * | 2020-03-31 | 2020-08-07 | 南京航空航天大学 | Vehicle pedal force compensation system based on magnetorheological fluid and control method |
| CN111497628B (en) * | 2020-03-31 | 2021-07-09 | 南京航空航天大学 | Vehicle pedal force compensation system based on magnetorheological fluid and control method |
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