CN102795216A - Hydraulic unit for integrated automobile brake system - Google Patents
Hydraulic unit for integrated automobile brake system Download PDFInfo
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- CN102795216A CN102795216A CN2012102724028A CN201210272402A CN102795216A CN 102795216 A CN102795216 A CN 102795216A CN 2012102724028 A CN2012102724028 A CN 2012102724028A CN 201210272402 A CN201210272402 A CN 201210272402A CN 102795216 A CN102795216 A CN 102795216A
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Abstract
The invention discloses a hydraulic unit for an integrated automobile brake system. The hydraulic unit comprises a hydraulic valve block and further comprises a brake master cylinder, a motor, two hydraulic pumps, two switch valves, a second switch valve, four pressure-increasing valves, four pressure-relieving valves, an oil storage chamber and a pressure sensor which are mounted on the hydraulic valve block, wherein a brake master cylinder body is integrated with the hydraulic valve block; a piston of the brake master cylinder is arranged in the brake master cylinder body; the piston of the brake master cylinder is connected with a brake pedal through a push rod; the motor is mounted on the hydraulic valve block and is connected with the hydraulic pumps; and the oil storage chamber which is connected with the hydraulic valve block is connected with two oil inlets of the brake master cylinder body through oil channels on the hydraulic valve block and also is connected with the outlets of the pressure-relieving valves and the oil inlets of the hydraulic pumps. The hydraulic unit for the integrated automobile brake system has the advantages of simple and compact structure, low cost, energy conservation and environmental protection, wide application scope, powerful function, high speed in establishing braking hydraulic pressure, benefit to the reduction of braking distance, and capability of increasing the driving safety. The hydraulic unit for the integrated automobile brake system can be applied to a traditional vehicle as well as a new energy vehicle.
Description
Technical field
The present invention relates to brake system of car, especially relate to a kind of integrated automobile brake system hydraulic pressure unit.
Background technology
Brake system of car is the extremely important component part that guarantees traffic safety, and this system architecture is complicated, and parts are many, and productive costs is high, the design cycle is long.Particularly in recent years along with the penetration and promotion of new-energy automobile; Adopt traditional vacuum servo formula brake system certainly will also need additive incrementation vacuum pump and vacuum reservoir, this makes the originally very complicated brake system of structure become complicated more, and not only cost increases; Volume increases, and reliability also descends.
The integrated automobile brake system changes traditional series connection vacuum servo formula master cylinder pressurized construction into pump control cubage compensation formula master cylinder arrangement; The hydraulic pressure unit of this system is cancelled the vacuum booster and the part hydraulic tubing of original brake system; Traditional hydraulic pressure unit, master brake cylinder, oil cabinet is integrated, thus the reliability of system improved; The components of system as directed parts still had very strong deceleration and stopping performance after losing efficacy.This system can not only be applicable to orthodox car, and is applicable to the new-energy automobile with energy recovery function, can realize the function of functions such as ABS, TCS, ESP and other various active safety systems on the function.
Find that through the related patent U.S. Patent No. literature search integrated automobile brake system mainly is in the following manner, a kind of is to utilize energy storage to store high hydraulic brake fluid carries out brakig force distribution through the linear scaling valve EHB mode.Another kind is to the power-assisted motor power-assisted of master brake cylinder mode through motor.Former structure is complicated, and working accuracy is high, and cost is high; The latter proposes higher requirement to the minimization of the rotor inertia of reaction time of motor and transmission device.Their common feature is a complex process, and cost is high, is difficult to realize industrialization.
Summary of the invention
In order to overcome disadvantages of background technology, the object of the present invention is to provide a kind of integrated automobile brake system hydraulic pressure unit, can be used for orthodox car, also can be used for new-energy automobile.This integrated automobile brake system hydraulic pressure unit is simple and compact for structure, with low cost, and energy-conserving and environment-protective are powerful, and brake fluid pressure is set up rapidly, helps reducing stopping distance, increases traffic safety.
The technical scheme that the present invention adopts is:
Hydraulic pressure unit of the present invention comprises: hydraulic valve block and be installed in master brake cylinder, motor, first Hydraulic Pump, second Hydraulic Pump, first switch valve, second switch valve, first pressure charging valve, first reducing valve, second pressure charging valve, second reducing valve, the 3rd pressure charging valve, the 3rd reducing valve, the 4th pressure charging valve, the 4th reducing valve, oil cabinet and the pressure sensor on the hydraulic valve block; Oil cabinet first liquid outlet links to each other with first Hydraulic Pump, 106 inlets, second Hydraulic Pump, 108 inlets, the first reducing valve liquid outlet, the second reducing valve liquid outlet, the 3rd reducing valve liquid outlet, the 4th reducing valve liquid outlet respectively; Oil cabinet second liquid outlet links to each other with first inlet of master brake cylinder, and oil cabinet the 3rd liquid outlet links to each other with second inlet of master brake cylinder; Master brake cylinder first liquid outlet links to each other with the first switch valve inlet, and master brake cylinder second liquid outlet links to each other with second switch valve inlet; The first switch valve liquid outlet links to each other with the first pressure charging valve inlet, the second pressure charging valve inlet, the first Hydraulic Pump liquid outlet, pressure sensor respectively; Second switch valve liquid outlet links to each other with the 3rd pressure charging valve inlet, the 4th pressure charging valve inlet, the second Hydraulic Pump liquid outlet respectively; Motor links to each other with first Hydraulic Pump, second Hydraulic Pump respectively; The first pressure charging valve liquid outlet, the first reducing valve inlet and the oil pipe that leads to the near front wheel drg link to each other; The second pressure charging valve liquid outlet, the second reducing valve inlet and the oil pipe that leads to the off front wheel drg link to each other; The 3rd pressure charging valve liquid outlet, the 3rd reducing valve inlet and the oil pipe that leads to the left rear wheel drg link to each other; The 4th pressure charging valve liquid outlet, the 4th reducing valve inlet and the oil pipe that leads to the off hind wheel drg link to each other; The push rod of master brake cylinder is connected with brake pedal, and pedal position sensor is housed on the push rod.
Described master brake cylinder comprises: master cylinder body, first brake master cylinder piston, first pull back spring, second brake master cylinder piston, second pull back spring; Master cylinder body directly is integrated on the hydraulic valve block; First brake master cylinder piston, first pull back spring, second brake master cylinder piston, second pull back spring place this master cylinder body successively, and first brake master cylinder piston is connected with brake pedal through push rod.
The beneficial effect that the present invention has is:
(1) can simplify the brake system of car structure to greatest extent; (2) reduce brake system amount of parts, cost-cutting; (3) not only can be applicable to also can be applied on the electronlmobil, and brake feel be good on the orthodox car; (4) when said integrated automobile brake system hydraulic pressure unit part parts lost efficacy, hydraulic pressure unit still can reliable operation; (5) can realize comprising the active safety control system function of ABS, TCS, ESP; (6) whole hydraulic pressure unit is simple in structure, is easy to batch manufacturing.
Description of drawings
Fig. 1 is the brake system principle schematic of integrated automobile brake system hydraulic pressure unit.
Fig. 2 is the structural representation of integrated automobile brake system hydraulic pressure unit.
Fig. 3 is a master brake cylinder constructional drawing of the present invention.
Among the figure: 100, hydraulic valve block, 101, oil cabinet, 102, master brake cylinder, 103, pressure sensor, 104, first switch valve; 105, second switch valve, 106, first Hydraulic Pump, 107, motor, 108, second Hydraulic Pump, 109, first reducing valve; 110, first pressure charging valve, 111, second reducing valve, 112, second pressure charging valve, the 113, the 3rd reducing valve, the 114, the 3rd pressure charging valve; 115, the 4th reducing valve, the 116, the 4th pressure charging valve, 117, the near front wheel drg, 118, the off front wheel drg, 119, the left rear wheel drg; 120, off hind wheel drg, 121, pedal position sensor, 122, brake pedal, 123, push rod; 200, master cylinder body, 201, first brake master cylinder piston, 202, first pull back spring, 203, second brake master cylinder piston, 204, second pull back spring.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further.
Fig. 1 is the brake system principle schematic of integrated automobile brake system hydraulic pressure unit, and Fig. 2 is the structural representation of integrated automobile brake system hydraulic pressure unit.Said integrated automobile brake system hydraulic pressure unit comprises hydraulic valve block 100 and is installed in the master brake cylinder 102 on the hydraulic valve block 100; Motor 107; First Hydraulic Pump 106; The second liquid Hydraulic Pump 108; First switch valve 104; Second switch valve 105; First pressure charging valve 110; First reducing valve 109; Second pressure charging valve 112; Second reducing valve 111; The 3rd pressure charging valve 114; The 3rd reducing valve 113; The 4th pressure charging valve 116; The 4th reducing valve 115; Oil cabinet 101; Pedal position sensor 121; Pressure sensor 103.Described oil cabinet 101 the 1st liquid outlet links to each other with first Hydraulic Pump, 106 inlets, second Hydraulic Pump, 108 inlets, first reducing valve, 109 liquid outlets, second reducing valve, 111 liquid outlets, the 3rd reducing valve 113 liquid outlets, the 4th reducing valve 115 liquid outlets respectively; Described oil cabinet 101 the 2nd liquid outlet links to each other with the 1st inlet of master brake cylinder 102, and described oil cabinet 101 the 3rd liquid outlet links to each other with the 2nd inlet of master brake cylinder 102; Described master brake cylinder 102 the 1st liquid outlet links to each other with first switch valve, 104 inlets, and described master brake cylinder 102 the 2nd liquid outlet links to each other with second switch valve 105 inlets; Described first switch valve, 104 liquid outlets link to each other with first pressure charging valve, 110 inlets, second pressure charging valve, 112 inlets, first Hydraulic Pump, 106 liquid outlets, pressure sensor 103 respectively; Described second switch valve 105 liquid outlets link to each other with the 3rd pressure charging valve 114 inlets, the 4th pressure charging valve 116 inlets, second Hydraulic Pump, 108 liquid outlets respectively; Described motor 107 links to each other with first Hydraulic Pump 106, second Hydraulic Pump 108 respectively; Described first pressure charging valve, 110 liquid outlets, first reducing valve, 109 inlets and the oil pipe that leads to the near front wheel drg 117 link to each other; Described second pressure charging valve, 112 liquid outlets, second reducing valve, 111 inlets and the oil pipe that leads to off front wheel drg 118 link to each other; Described the 3rd pressure charging valve 114 liquid outlets, the 3rd reducing valve 113 inlets and the oil pipe that leads to left rear wheel drg 119 link to each other; Described the 4th pressure charging valve 116 liquid outlets, the 4th reducing valve 115 inlets and the oil pipe that leads to off hind wheel drg 120 link to each other.
Fig. 3 is a master brake cylinder constructional drawing of the present invention.Described master brake cylinder 102 comprises master cylinder body 200, first brake master cylinder piston 201, first pull back spring 202, second brake master cylinder piston 203, second pull back spring 204.Master cylinder body 200 directly is integrated on the hydraulic valve block 100; First brake master cylinder piston 201, first pull back spring 202, second brake master cylinder piston 203, second pull back spring 204 place these master cylinder body 200, the first brake master cylinder pistons 201 to be connected with brake pedal 122 through push rod 123 successively.
Described oil cabinet 101 has 3 liquid outlets, these liquid outlets directly with hydraulic valve block 100 on oil duct link to each other.
Described first Hydraulic Pump 106, second Hydraulic Pump 108 all have a plurality of (being no less than 2) unidirectional plunger pump.
Described pedal position sensor 121 both can be located on the hydraulic pressure unit, can be located at again on brake pedal 122 steering units.
Described pressure sensor 103 both can be located on the continuous hydraulic pressure unit oil duct of first switch valve, 104 liquid outlets, can be located at again on the continuous hydraulic pressure unit oil duct of second switch valve 105 liquid outlets.
The brake system working process of integrated automobile brake system hydraulic pressure unit of the present invention is divided into nominal situation, fail safe operating mode and other expanded function operating modes.
(1) brake system normal circumstances
Pressurization:
In car running process, step on brake pedal 122, push rod 123 acts on brake master cylinder piston 201,203; Drive pedal position sensor 121 simultaneously and change, master brake cylinder 102 produces brake-pressures, through first switch valve 104, second switch valve 105; First pressure charging valve 110, second pressure charging valve 112, the 3rd pressure charging valve 114, the 4th pressure charging valve 116 get into each car side brake; Produce friction brake force, this moment, pressure sensor 103 also changed, when the increase of pressure sensor 103 is less than pedal position sensor 121 corresponding increasing; Motor 107 work; Drive first Hydraulic Pump 106,108 work of second Hydraulic Pump, the oil cabinet braking liquid gets into car side brake separately, the increase friction brake force after first Hydraulic Pump 106,108 pressurizations of second Hydraulic Pump.When the increase of pressure sensor 103 and pedal position sensor 121 increase when meeting certain requirements, motor quits work.Motor 107 is constantly worked, is stopped according to pressure sensor 103 and pedal position sensor 121 RSTs, and master brake cylinder is replenished braking liquid, guarantees the brake system reliable operation.
Decompression process:
In car running process, loosen the brake 122, brake master cylinder piston 201,203 returns; Drive pedal position sensor 121 simultaneously and change, the brake-pressure that master brake cylinder 102 produces also reduces, and this moment, pressure sensor 103 also changed; When pressure sensor 103 reduce to be less than pedal position sensor 121 and to reduce accordingly the time; Open reducing valve and reduce pressure, when the value of the value of pressure sensor 103 and pedal position sensor 121 meets certain requirements, close reducing valve and stop decompression.
Wheel generation locking:
Under the situation of wheel generation locking (is example with the near front wheel locking); First pressure charging valve 110 cuts out, first reducing valve 109 is opened, the near front wheel explosive decompression, motor 107 work simultaneously; Drive first Hydraulic Pump 106,108 work of second Hydraulic Pump; Master brake cylinder 102 is replenished braking liquid, and master brake cylinder 102 pressure raise, and remind the chaufeur automobile to be in the wheel lockup state.Corresponding pressure charging valve cuts out and gets final product when the needs pressurize.
(2) brake system fail safe operating mode
The brake system failure class is a lot, and it is that whole brake system power supply was lost efficacy that the most serious brake system lost efficacy.Explain as example below.Because power supply was lost efficacy; So the motor 107 in the brake system quits work, first Hydraulic Pump 106, second Hydraulic Pump 108 also quit work, and glancing impact can not replenish brakings liquid to master brake cylinder 102; Have only first switch valve 104 in running order this moment; Second switch valve 105 is in closed condition, so the brake-pressure that produces of master brake cylinder 102 gets into the front vehicle wheel drgs through first switch valve, 104, the first pressure charging valves 110, second pressure charging valve 112; Front-wheel produces friction brake force, makes vehicle deceleration until parking.
(3) brake system expanded function operating mode
Utilizing integrated automobile brake system hydraulic pressure unit, can realize the various automobile intelligent ancillary systems relevant with brake system, is that example is explained with automobile urban safety system and pedestrains safety system below.This system to the requirement of brake system be identify that automobile is about to can the Rapid Realization automobile brake under the case of collision.When identifying when needing the Rapid Realization automobile brake; This moment, first switch valve 104 powered on, and this valve is in closed condition, starter motor 107 work simultaneously; Drive first Hydraulic Pump 106,108 work of second Hydraulic Pump; Get into each car side brake through first pressure charging valve 110, second pressure charging valve 112, the 3rd pressure charging valve 114, the 4th pressure charging valve 116, produce friction brake force, realize automobile brake.
The foregoing description is to explanation of the present invention, is not limitation of the present invention, and any structure after simple transformation on the basis of the present invention all belongs to protection scope of the present invention.
Claims (2)
1. integrated automobile brake system hydraulic pressure unit; It is characterized in that this hydraulic pressure unit comprises: hydraulic valve block (100) and be installed in master brake cylinder (102), motor (107), first Hydraulic Pump (106), second Hydraulic Pump (108), first switch valve (104), second switch valve (105), first pressure charging valve (110), first reducing valve (109), second pressure charging valve (112), second reducing valve (111), the 3rd pressure charging valve (114), the 3rd reducing valve (113), the 4th pressure charging valve (116), the 4th reducing valve (115), oil cabinet (101) and the pressure sensor (103) on the hydraulic valve block (100); Oil cabinet (101) first liquid outlets link to each other with first Hydraulic Pump (106) inlet, second Hydraulic Pump (108) inlet, first reducing valve (109) liquid outlet, second reducing valve (111) liquid outlet, the 3rd reducing valve (113) liquid outlet, the 4th reducing valve (115) liquid outlet respectively; Oil cabinet (101) second liquid outlets link to each other with first inlet of master brake cylinder, and oil cabinet (101) the 3rd liquid outlet links to each other with second inlet of master brake cylinder (102); Master brake cylinder (102) first liquid outlets link to each other with first switch valve (104) inlet, and master brake cylinder (102) second liquid outlets link to each other with second switch valve (105) inlet; First switch valve (104) liquid outlet links to each other with first pressure charging valve (110) inlet, second pressure charging valve (112) inlet, first Hydraulic Pump (106) liquid outlet, pressure sensor (103) respectively; Second switch valve (105) liquid outlet links to each other with the 3rd pressure charging valve (114) inlet, the 4th pressure charging valve (116) inlet, second Hydraulic Pump (108) liquid outlet respectively; Motor (107) links to each other with first Hydraulic Pump (106), second Hydraulic Pump (108) respectively; First pressure charging valve (110) liquid outlet, first reducing valve (109) inlet and the oil pipe that leads to the near front wheel drg (117) link to each other; Second pressure charging valve (112) liquid outlet, second reducing valve (111) inlet and the oil pipe that leads to off front wheel drg (118) link to each other; The 3rd pressure charging valve (114) liquid outlet, the 3rd reducing valve (119) inlet and the oil pipe that leads to left rear wheel drg (119) link to each other; The 4th pressure charging valve (116) liquid outlet, the 4th reducing valve (115) inlet and the oil pipe that leads to off hind wheel drg (120) link to each other; The push rod (123) of master brake cylinder (102) is connected with brake pedal (122), and pedal position sensor (121) is housed on the push rod (123).
2. a kind of integrated automobile brake system hydraulic pressure unit according to claim 1; It is characterized in that described master brake cylinder (102) comprising: master cylinder body (200), first brake master cylinder piston (201), first pull back spring (202), second brake master cylinder piston (203), second pull back spring (204); Master cylinder body (200) directly is integrated on the hydraulic valve block (100); First brake master cylinder piston (201), first pull back spring (202), second brake master cylinder piston (203), second pull back spring (204) place this master cylinder body (200) successively, and first brake master cylinder piston (201) is connected with brake pedal (122) through push rod (123).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102724028A CN102795216A (en) | 2012-08-02 | 2012-08-02 | Hydraulic unit for integrated automobile brake system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102724028A CN102795216A (en) | 2012-08-02 | 2012-08-02 | Hydraulic unit for integrated automobile brake system |
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| CN102795216A true CN102795216A (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102724028A Pending CN102795216A (en) | 2012-08-02 | 2012-08-02 | Hydraulic unit for integrated automobile brake system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176031A (en) * | 2014-08-20 | 2014-12-03 | 浙江万向精工有限公司 | Hydraulic control unit body device |
| CN104408988A (en) * | 2014-11-03 | 2015-03-11 | 河南交通职业技术学院 | Stereo visual teaching platform based on automobile brake system assembly |
| CN106696938A (en) * | 2016-12-15 | 2017-05-24 | 吉林大学 | Decoupling type electric power-assisted braking system based on X-type arrangement |
| CN106740787A (en) * | 2017-01-09 | 2017-05-31 | 吉林大学 | Line control brake system based on time-shared serial with parallel control simultaneously |
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| WO2002053436A1 (en) * | 2001-01-02 | 2002-07-11 | Robert Bosch Gmbh | Vehicle hydraulic braking system with an active simulator |
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| CN1706700A (en) * | 2004-06-08 | 2005-12-14 | 株式会社爱德克斯 | Vehicle brake device |
| CN102303597A (en) * | 2011-05-23 | 2012-01-04 | 重庆大学 | Hybrid electrical vehicle (HEV)/electrical vehicle (EV) regeneration brake pressure coordinate control system based on antilock brake system (ABS) hardware |
| JP2012066720A (en) * | 2010-09-24 | 2012-04-05 | Advics Co Ltd | Hydraulic brake apparatus for vehicle |
| CN102582601A (en) * | 2012-03-02 | 2012-07-18 | 同济大学 | Electric-hydro complex brake system employing integral brake master cylinder assembly |
| CN202716864U (en) * | 2012-08-02 | 2013-02-06 | 浙江亚太机电股份有限公司 | Integrated hydraulic unit of automobile braking system |
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2012
- 2012-08-02 CN CN2012102724028A patent/CN102795216A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002053436A1 (en) * | 2001-01-02 | 2002-07-11 | Robert Bosch Gmbh | Vehicle hydraulic braking system with an active simulator |
| CN2558559Y (en) * | 2002-06-11 | 2003-07-02 | 浙江亚太机电股份有限公司 | Center valve type brake main cylinder |
| CN1706700A (en) * | 2004-06-08 | 2005-12-14 | 株式会社爱德克斯 | Vehicle brake device |
| JP2012066720A (en) * | 2010-09-24 | 2012-04-05 | Advics Co Ltd | Hydraulic brake apparatus for vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176031A (en) * | 2014-08-20 | 2014-12-03 | 浙江万向精工有限公司 | Hydraulic control unit body device |
| CN104408988A (en) * | 2014-11-03 | 2015-03-11 | 河南交通职业技术学院 | Stereo visual teaching platform based on automobile brake system assembly |
| CN106696938A (en) * | 2016-12-15 | 2017-05-24 | 吉林大学 | Decoupling type electric power-assisted braking system based on X-type arrangement |
| CN106740787A (en) * | 2017-01-09 | 2017-05-31 | 吉林大学 | Line control brake system based on time-shared serial with parallel control simultaneously |
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Application publication date: 20121128 |