CN1631693A - Series connection type brake system of hybrid power vehicle - Google Patents
Series connection type brake system of hybrid power vehicle Download PDFInfo
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- CN1631693A CN1631693A CN 200510001757 CN200510001757A CN1631693A CN 1631693 A CN1631693 A CN 1631693A CN 200510001757 CN200510001757 CN 200510001757 CN 200510001757 A CN200510001757 A CN 200510001757A CN 1631693 A CN1631693 A CN 1631693A
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- 238000004146 energy storage Methods 0.000 claims description 7
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- 239000002828 fuel tank Substances 0.000 claims description 3
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- 239000012530 fluid Substances 0.000 description 5
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Abstract
The invention relates to a kind series-wound brake system of mixed power electromotion vehicle which belongs to the technique of mixed power vehicle field. The system includes callback brake subsystem and hydraulic pressure brake subsystem. The callback brake subsystem consists of an a an an engine, an ISG motor, an manual transmission ,the main decelerator all connected with mechanical devices, and the electronic control unit connected to the circuitry of the ISG motor the battery and the converser. The hydraulic pressure brake subsystem consists of a brake pedal, the main cylinder connected to the brake pedal, two set of pressure adjusting devices connected to the main cylinder through the oil duct, the ABS components group, the oil container and the jar of the wheels each connected through electrocircuit with the two set of pressure adjusting devices, the ABS components group, and the rotate speed sensor connected to the control unit. The invention bring forward the mixed power vehicle's series-wound brake system's structure and makes the mixed power vehicle recycle the brake power possible and highly improved the fuel economy.
Description
Technical field
The invention belongs to the mixed power electric car field, particularly the design of a cover brake system of car.
Background technology
Mixed power electric car provides braking force by the conventional brake device with motor at glancing impact.About in the research of reclaiming at braking energy, the difference that is concerned by brakig force distribution can be divided into the brake system of routine tandem and parallel system at present.The principle of work of tandem brake energy recovering system is that the braking force of drive wheel is made of jointly motor braking power and friction brake force, at first satisfies the requirement of motor braking power, satisfies the requirement of friction brake force and then.As disclosed technology in " SAE " January calendar year 2001 " Electronic Braking System of EV AndHEV---Integration of Regenerative Braking; the Automatic Braking Force ControlAnd ABS " literary composition, its structure as shown in Figure 1, heavy line represents that oil circuit connects among the figure, the fine line indication circuit connects, and double solid line is represented mechanical connection.This brake system comprises two cover braking subsystems.Wherein a cover is to reclaim the braking subsystem, and it is made up of motor driver and change-speed box 3; Another set of subsystem is the hydraulic brake system in the conventional automobile, comprises braking fluid holder 1, three phase converer 4, electric mechanical brake draught control mechanism 5, friction brake 6, wheel speed sensors 8, pressure sensor 9, brake pedal 10, master cylinder 11.The switching of this two covers braking subsystem is finished by three phase converer 4.The target brake torque 2 that centralized control unit 12 calculates will be distributed to this two covers braking subsystem according to the relations of distribution of optimum, and combined action is in brake area 7.In this system, the fluid pressure regulating device has been abandoned the conventional brake hydraulic gear fully, has obviously strengthened the cost of this system; The mode of operation of ABS is defined and command execution by last level controlling system fully, and the precision and the complexity of control policy all had very high requirement, has increased the difficulty of system development; Four-wheel brake independent regulation braking oil pressure, the labile factor when having strengthened car brakeing.
Summary of the invention
The objective of the invention is to propose a kind of series connection type brake system of hybrid power vehicle, make to have following advantage: obviously reduced system development costs for overcoming the weak point of prior art; Pressure regulating device and ABS system do not interfere, and last level controlling system need not formulated the control of ABS, have reduced the difficulty of system development; Left front, off front wheel brake braking force unanimity, rear wheel brake braking force unanimity, so improved ballast during car brakeing.
The series connection type brake system of hybrid power vehicle that the present invention proposes, comprise two cover braking subsystems, be respectively and reclaim braking subsystem and hydraulic braking subsystem, it is characterized in that, this recovery braking subsystem comprises driving engine, ISG motor, hand-operated transmission, the main reduction gear by mechanical connection, and carry out the electronic control unit that circuit links to each other with this ISG motor, battery and reverse device respectively, this subsystem is used to realize the braking of car load and the recovery of energy, belongs in the car brakeing process and reclaims brake portion; This hydraulic braking subsystem comprises brake pedal and coupled master cylinder, the wheel cylinder of two cover pressure regulating devices, ABS parts groups, reservoir and the wheel that links to each other by oil circuit with master cylinder and linking to each other with electronic control unit with wheel speed sensors with this two covers pressure regulating device, ABS parts group by circuit respectively, this subsystem is used to realize car load conventional brake part, belongs to hydraulic braking part in the car brakeing process.
Characteristics of the present invention and effect:
Two cover braking subsystems of the hybrid vehicle that the present invention proposes are carried out the braking task separately according to the optimal brake power that electronic control unit provided separately.Hydraulic brake system utilizes designed voltage-regulating system to regulate master cylinder to the pressure between the ABS part on the basis that does not influence ABS work.When ABS did not work, the pressure in main chamber before and after designed voltage-regulating system regulates was before and after the pipeline by ABS affacts in the wheel cylinder; When ABS works, the size that ABS regulates front and back wheel wheel cylinder wheel cylinder 101 pressure according to the switch needs of self valve.Have following advantage: the fluid pressure regulating device is revised on the basis of conventional brake hydraulic gear and to be obtained, and has obviously reduced system development costs; Pressure regulating device and ABS system do not interfere, and last level controlling system need not formulated the control of ABS, have reduced the difficulty of system development; Left front, off front wheel brake braking force unanimity, rear wheel brake braking force unanimity, so improved ballast during car brakeing.
Description of drawings
The existing tandem brake energy recovering system of Fig. 1 constructional drawing.
Fig. 2 tandem brake energy recovering system of the present invention constructional drawing.
The hydraulic brake system pressure regulating device constructional drawing that Fig. 3 the present invention proposes.
Fig. 4 the present invention propose coefficient of road adhesion hour before and after a brakig force distribution rule.
The front and back brakig force distribution rule when coefficient of road adhesion is big that Fig. 5 the present invention proposes.
The specific embodiment
A kind of tandem brake energy recovering system that the present invention proposes reaches in conjunction with the accompanying drawings that embodiment is detailed to be described as follows: structure of the present invention as shown in Figure 2, single solid line is represented oil circuit among the figure, dotted line is represented circuit, double solid line is a mechanical connection.The present invention includes two cover braking subsystems, be respectively and reclaim braking subsystem and hydraulic braking subsystem, shown in square frame I, II among the figure.Recovery braking subsystem comprises driving engine, ISG motor, hand-operated transmission, the main reduction gear by mechanical connection, and carries out the electronic control unit that circuit links to each other with this ISG motor, battery and reverse device respectively.The hydraulic braking subsystem comprises brake pedal 10 and coupled master cylinder 11, the wheel cylinder of two cover pressure regulating devices, ABS parts groups, reservoir and the wheel that links to each other by oil circuit with master cylinder and linking to each other with electronic control unit with wheel speed sensors with this two covers pressure regulating device, ABS parts group by circuit respectively.
When vehicle was in braking energy recovery operating mode, reclaimed the braking subsystem this moment and hydraulic brake system is worked simultaneously.Chaufeur is stepped on brake pedal, and electronic control unit collects chaufeur braking intention, and decides the front and rear wheel braking force and the target braking force that reclaims braking subsystem and hydraulic braking subsystem of vehicle according to the current vehicles travel conditions.The principle of work that reclaims the braking subsystem is as follows: utilize the anti-ISG of the dragging generating of front vehicle wheel, the electric current of generation is recovered in the battery electric current by reverser voltage stabilizing and current stabilization.The target brake torque that is provided by electronic control unit is provided ISG simultaneously, acts on front-wheel with actual brake torque by power-transfer clutch, hand-operated transmission, main reduction gear and diff.The principle of work of hydraulic braking subsystem is: the remaining brake torque of vehicle is provided by hydraulic brake system.Electronic control unit is controlled in the two cover pressure regulating devices switch motions of valve respectively and is regulated among the ABS pressure of fluid in the forward and backward main chamber, utilize the pipeline of ABS that fluid is affacted in left and right front wheel cylinder and the trailing wheel brake wheel cylinder, thereby reached the purpose of regulating the size of front and rear wheel braking force.Surplus oil liquid is back to reservoir in pressure regulating device and the wheel cylinder.When vehicle is in inertia recovery operating mode, reclaim the braking subsystem work, and hydraulic brake system does not participate in work.Rotator inertia square with driving engine is that the anti-ISG that drags of resisting moment generates electricity, and reaches the purpose of energy recovery.When vehicle was in the emergency braking operating mode, hydraulic brake system work did not participate in work and reclaim the braking subsystem.This moment, ABS participated in work, relied on the control policy of ABS to adjust the size of oil pressure in left front, off front wheel and the trailing wheel brake wheel cylinder, thereby realized the purpose of braking.
On the basis that does not influence ABS work, utilize this pressure regulation brake system to regulate master cylinder to the pressure between the ABS part.When ABS did not work, the pressure in main chamber before and after this pressure regulation brake system regulates was before and after the pipeline by ABS affacts in the wheel cylinder; When ABS works, the size that ABS regulates the front and back wheel pressure of wheel braking cylinder according to the switch needs of self valve.
Pressure regulating device concrete structure among Fig. 2 and principle of work as shown in Figure 3, this pressure regulating device comprises wheel cylinder 101, two-position three-way valve 102, high-speed switch valve 103, fuel tank 104, by pass valve 105, DC machine 106, filter 107, oil pump 108, check valve 109, energy storage 110, high-speed switch valve 111, two-position three-way valve 112, main pump 113 and check valve 109.Wherein, DC machine 106 and coupled oil pump 108, by pass valve 105, filter 107 are formed a pressure source that has steady pressure and have certain accumulation of energy effect; High-speed switch valve is connected between energy storage 110 and the two-position three-way valve 112, another high-speed switch valve is connected filter 107 and constitutes the pressure regulation part respectively with another two-position three-way valve 102, by two high-speed switch valve open-interval co-operative controls being realized the control to delivery pressure; These two two-position three-way valves partly link to each other with wheel cylinder and ABS with main pump respectively, by controlling main pump to the control of two-position three-way valve or pressure regulating device partly links to each other with ABS, realize pressure regulating device and ABS compatibility partly.
The design philosophy key of this pressure regulating device is: 1, and the structure of employing energy storage and high-speed switch valve can realize the quick response of brake command, satisfies the application requirements of automobile brake; 2, adopt the two-bit triplet valve arrangement, can simple and easyly realize being connected of ancillary system and original system reliably.Its working process is as follows:
The distribution curve that adopts the front and back wheel braking force of mixed power electric car of the present invention in braking procedure as shown in Figure 4 and Figure 5.In Fig. 4, this moment, f curve and I ' curve were non-intersect.The I curve is desirable front and back wheel brakig force distribution curve; I ' curve is the minimum brakig force distribution curve of trailing wheel, promptly when the front-wheel locking, for satisfying the car brakeing requirement, the minimum braking force that trailing wheel must provide.For guaranteeing glancing impact direction of traffic stability and enough brake efficiencys arranged that the ECE R13 brake legislation that UNECE formulates has proposed to explicitly call for to two-axle motor unit front and rear wheel brake braking force.The industry standard ZBT24007-89 of China has also proposed similar requirement.These rules and regulations require rate of braking for the various vehicles that utilize between adhesion value =0.2~0.8: Z 〉=0.1+0.85 (-0.2); When the f curve is the front-wheel locking, the relation curve of front and back wheel ground braking force.Fig. 4,5 has expressed the brakig force distribution relation for front and back wheel under the specific coefficient of road adhesion condition.Closed loop curve OACO area surrounded is actv. brakig force distribution zone; Linear portion DE represents under the specific car brakeing deceleration/decel, front and back wheel actv. brakig force distribution line segment; The front and back braking force is pressed a bit distributing arbitrarily on the line segment DE, all can satisfy the desired deceleration of vehicle, but have only the E point can make front-wheel can obtain maximum braking force.Therefore, thick black broken line OAC is front and back wheel brakig force distribution line among the figure.When required braking force increased to the C point, distribution afterwards then kept on the front and rear wheel braking with locked wheels power that C orders.In Fig. 5, this moment f curve and I ' curve intersection.By top method of designing, designed front and back wheel brakig force distribution line is along broken line OABC.When required braking force increases to the C point, on the front and back wheel braking with locked wheels power when distribution afterwards remains on the C point.
Claims (2)
1, a kind of series connection type brake system of hybrid power vehicle, comprise two cover braking subsystems, be respectively and reclaim braking subsystem and hydraulic braking subsystem, it is characterized in that, this recovery braking subsystem comprises driving engine, ISG motor, hand-operated transmission, the main reduction gear by mechanical connection, and carry out the electronic control unit that circuit links to each other with this ISG motor, battery and reverse device respectively, this subsystem is used to realize the braking of car load and the recovery of energy, belongs in the car brakeing process and reclaims brake portion; This hydraulic braking subsystem comprises brake pedal and coupled master cylinder, the wheel cylinder of two cover pressure regulating devices, ABS parts groups, reservoir and the wheel that links to each other by oil circuit with master cylinder and linking to each other with electronic control unit with wheel speed sensors with this two covers pressure regulating device, ABS parts group by circuit respectively, this subsystem is used to realize car load conventional brake part, belongs to hydraulic braking part in the car brakeing process.
2, series connection type brake system of hybrid power vehicle as claimed in claim 1, it is characterized in that described pressure regulating device comprises wheel cylinder, two-position three-way valve, high-speed switch valve, fuel tank, by pass valve, DC machine, filter, oil pump, check valve, energy storage, high-speed switch valve, two-position three-way valve, main pump and check valve; Wherein, DC machine and coupled oil pump, by pass valve, filter are formed a pressure source that has steady pressure and have certain accumulation of energy effect; High-speed switch valve is connected between energy storage and the two-position three-way valve, and another high-speed switch valve is connected filter and another two-position three-way valve constitutes the pressure regulation part respectively; These two two-position three-way valves partly link to each other with wheel cylinder and ABS with main pump respectively.
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CNB2005100017573A CN1298562C (en) | 2005-01-19 | 2005-01-19 | Series connection type brake system of hybrid power vehicle |
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CNB2005100017573A CN1298562C (en) | 2005-01-19 | 2005-01-19 | Series connection type brake system of hybrid power vehicle |
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101982339A (en) * | 2010-10-19 | 2011-03-02 | 福建省福工混合动力技术开发有限公司 | Recovery device of regenerative braking energy |
CN101327746B (en) * | 2007-06-19 | 2011-05-25 | 比亚迪股份有限公司 | Electric automobile braking system |
CN102166962A (en) * | 2011-03-29 | 2011-08-31 | 重庆长安汽车股份有限公司 | Brake energy feedback control system of pure electric automobile |
CN102269658A (en) * | 2011-04-29 | 2011-12-07 | 北京工业大学 | Electro-hydraulic combined brake experiment vehicle |
CN102336142A (en) * | 2011-09-06 | 2012-02-01 | 上海中科深江电动车辆有限公司 | ABS (anti-lock brake system) based regenerative braking control method for electric vehicle |
CN101367365B (en) * | 2007-07-26 | 2012-06-27 | 日信工业株式会社 | Electronic control unit and vehicle behavior control device |
CN102897041A (en) * | 2012-09-29 | 2013-01-30 | 北京智行鸿远汽车技术有限公司 | Regenerative braking torque distribution method of all-wheel drive hybrid power system |
CN103010009A (en) * | 2012-11-29 | 2013-04-03 | 河南科技大学 | Electric vehicle power system and two-speed power transmission device thereof |
CN101734163B (en) * | 2010-01-18 | 2013-04-10 | 吉林大学 | Electromechanical combined regenerative braking control system for electric vehicle and control strategy thereof |
CN101879892B (en) * | 2009-05-08 | 2013-10-02 | 比亚迪股份有限公司 | Vehicle braking system |
CN103738327A (en) * | 2014-01-14 | 2014-04-23 | 东风汽车公司 | Hybrid electric vehicle braking energy recovery method based on ABS device |
CN101522487B (en) * | 2006-09-28 | 2015-11-25 | 大众汽车有限公司 | For making brake system and the method for the car brakeing with combination drive |
CN112265526A (en) * | 2020-10-28 | 2021-01-26 | 宁波如意股份有限公司 | Linkage brake structure of wheel and engine |
Family Cites Families (5)
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JPH05161209A (en) * | 1991-12-05 | 1993-06-25 | Honda Motor Co Ltd | Brake system for motor vehicle |
JPH09104333A (en) * | 1995-10-11 | 1997-04-22 | Toyota Motor Corp | Braking device for electric vehicle |
JPH10236300A (en) * | 1997-02-25 | 1998-09-08 | Toyota Motor Corp | Braking device for electric vehicle |
JP3365301B2 (en) * | 1998-03-19 | 2003-01-08 | トヨタ自動車株式会社 | Vehicle braking energy control apparatus and control method thereof |
JP3763231B2 (en) * | 1999-06-04 | 2006-04-05 | トヨタ自動車株式会社 | Braking device |
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2005
- 2005-01-19 CN CNB2005100017573A patent/CN1298562C/en not_active Expired - Fee Related
Cited By (17)
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CN101522487B (en) * | 2006-09-28 | 2015-11-25 | 大众汽车有限公司 | For making brake system and the method for the car brakeing with combination drive |
CN101327746B (en) * | 2007-06-19 | 2011-05-25 | 比亚迪股份有限公司 | Electric automobile braking system |
CN101367365B (en) * | 2007-07-26 | 2012-06-27 | 日信工业株式会社 | Electronic control unit and vehicle behavior control device |
CN101879892B (en) * | 2009-05-08 | 2013-10-02 | 比亚迪股份有限公司 | Vehicle braking system |
CN101734163B (en) * | 2010-01-18 | 2013-04-10 | 吉林大学 | Electromechanical combined regenerative braking control system for electric vehicle and control strategy thereof |
CN101982339B (en) * | 2010-10-19 | 2012-12-19 | 福建省福工动力技术股份公司 | Recovery device of regenerative braking energy |
CN101982339A (en) * | 2010-10-19 | 2011-03-02 | 福建省福工混合动力技术开发有限公司 | Recovery device of regenerative braking energy |
CN102166962A (en) * | 2011-03-29 | 2011-08-31 | 重庆长安汽车股份有限公司 | Brake energy feedback control system of pure electric automobile |
CN102269658A (en) * | 2011-04-29 | 2011-12-07 | 北京工业大学 | Electro-hydraulic combined brake experiment vehicle |
CN102336142A (en) * | 2011-09-06 | 2012-02-01 | 上海中科深江电动车辆有限公司 | ABS (anti-lock brake system) based regenerative braking control method for electric vehicle |
CN102897041B (en) * | 2012-09-29 | 2015-10-28 | 北京智行鸿远汽车技术有限公司 | A kind of four-wheel-drive hybrid power system regenerative braking torque distribution method |
CN102897041A (en) * | 2012-09-29 | 2013-01-30 | 北京智行鸿远汽车技术有限公司 | Regenerative braking torque distribution method of all-wheel drive hybrid power system |
CN103010009A (en) * | 2012-11-29 | 2013-04-03 | 河南科技大学 | Electric vehicle power system and two-speed power transmission device thereof |
CN103010009B (en) * | 2012-11-29 | 2016-02-10 | 河南科技大学 | Electric vehicle powertrain and two gear variable-speed dynamic drivings device thereof |
CN103738327B (en) * | 2014-01-14 | 2015-09-16 | 东风汽车公司 | Based on the hybrid vehicle method for recovering brake energy of ABS device |
CN103738327A (en) * | 2014-01-14 | 2014-04-23 | 东风汽车公司 | Hybrid electric vehicle braking energy recovery method based on ABS device |
CN112265526A (en) * | 2020-10-28 | 2021-01-26 | 宁波如意股份有限公司 | Linkage brake structure of wheel and engine |
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