CN101144514B - Vehicle electronic brake system actuator - Google Patents
Vehicle electronic brake system actuator Download PDFInfo
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- CN101144514B CN101144514B CN2007101563348A CN200710156334A CN101144514B CN 101144514 B CN101144514 B CN 101144514B CN 2007101563348 A CN2007101563348 A CN 2007101563348A CN 200710156334 A CN200710156334 A CN 200710156334A CN 101144514 B CN101144514 B CN 101144514B
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- gear
- brake
- braking
- clamp body
- screw rod
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Abstract
The invention discloses an implementing mechanism of a vehicle electronic parking brake system. The invention comprises a transmission device and a brake clipping caliper assembly. After the output of the direct current motor in the transmission device is performed with speed reduction and torque increase via a synchronization belt transmission device and a involute few tooth difference planetary transmission device, the rotation motion is transferred into a straight line motion through a sliding helical transmission mechanism, and a braking disc is braked through the method that a piston and a braking block assembly are pushed by a screw sleeve. The circumferential freedom degree of the piston is limited by the braking block assembly, and the circumferential and the racial freedom degrees of the screw sleeve are respectively limited by a piston non-round hole and a blocking ring. The screw sleeve and a screw rod adopt self locking thread matching, to guarantee the parking braking to be secure and reliable. Compared with the implementing mechanism of the traditional vehicle rear wheel parking braking system, the invention has the advantages that the driving cab space is saved, the labor intensity of the driver is reduced, the parting braking is more secure and reliable, and the invention is convenient for adopting intelligent control and integrating other functions.
Description
Technical field
The present invention relates to park braking system for automobile, relate in particular to vehicle electronic brake system actuator.
Background technique
The vehicle rear wheel parking braking system mainly is made up of Parking Brake, transmitting set and control gear, and mainly contain following three kinds of composition forms: 1. be used for the rear drum brake double as Parking Brake of service brake, the braking torque arm that links to each other successively with this drum brake, brake cable etc. are as transmitting set; 2. the trailing wheel brake caliper assembly double as Parking Brake that is used for service brake is installed at the interior screw rod of this brake caliper, swivel nut and the outside braking torque arm that links to each other successively, brake cable etc. as transmitting set; 3. a drum brake is installed separately as Parking Brake in the trailing wheel brake disc, the braking torque arm that links to each other successively with this drum brake, brake cable etc. are as transmitting set.The control gear of above-mentioned three kinds of forms generally is made up of parking brake handle grip etc.
From above-mentioned three kinds of common form as can be seen, transmitting set generally adopts mechanical drag-line structure.When operating this structure, driver's labor intensity is big, and the braking force during each Parking can vary with each individual, the Security in the time of can not guaranteeing on great slope Parking fully.
Under the situation that service braking sytem lost efficacy, need secondary braking sytem to realize the deceleration or the parking of automobile.Common car emergency braking system is served as by parking braking system, and severity of braking is directly proportional with the pulling force of pilot control parking brake handle grip, and this is not easy to control for the driver who uses this function once in a while.
Each braking back brake slipper all can have wearing and tearing in various degree, so brake clearance needs can realize automatic adjustment, and is slow excessively to prevent braking response speed.Above-mentioned three kinds of forms all adopt the part that installs a plurality of necessity additional to realize the automatic adjustment of brake clearance, therefore process, assemble loaded down with trivial details.
Summary of the invention
The purpose of this invention is to provide a kind of vehicle electronic brake system actuator, under the cooperation of miscellaneous part such as ECU (Electrical Control Unit), can effectively overcome the above-mentioned shortcoming of traditional parking braking system.
The technological scheme that the present invention solves its technical problem employing is:
Comprise transmitting set and brake caliper assembly.The front case and the rear case of transmitting set are tightly connected, form semi-enclosed housing, transmitting set links to each other with braking clamp body by screw, in the front case of transmitting set direct current generator is housed, on the output shaft of direct current generator small synchronous pulley is housed, small synchronous pulley links to each other with the big synchronous pulley that is contained in eccentric shaft one end by synchronous band, eccentric shaft is supported on the rear case near an end of big synchronous pulley, the other end is supported on the output inner gear, the middle eccentric segment of eccentric shaft is equipped with duplicate gear, duplicate gear is near the gear and the fixed annulus engagement that is installed in the front case of big synchronous pulley one side, the opposite side gear of duplicate gear and output inner gear engagement, output inner gear is installed on the output inner gear seat in the front case and links to each other with screw rod external part in the brake caliper assembly by spline, the screw rod external part is equipped with back-up ring near braking clamp body one side, screw rod not external part adopts self-locking thread to cooperate and be positioned at the non-circular hole of piston with swivel nut, two brake pad assemblies are arranged in the braking clamp body, the groove that is installed in close first brake pad assembly, one side of piston in the braking clamp body cylinder hole cooperates with the boss of first brake pad assembly, and the centre of first and second brake pad assemblies is equipped with brake disc.
The beneficial effect that the present invention has is:
1) control gear of park braking system for automobile is replaced by the parking braking button by brake handle, obviously saved cab space, as long as the driver presses or parking braking be implemented or be removed to the parking braking button of upspringing just can to vehicle, therefore labor intensity is little, and the size identical property of each parking braking power is good, can guarantee safe Parking in gradient scope of design fully.
2) transmitting set of park braking system for automobile is replaced by as shown in Figure 2 the transmitting set with big speed ratio by brake cable, ECU (Electrical Control Unit) easy to use is like this controlled it, by direct current generator being taked different control strategies, can realize other functions, for example: by the number of turns of control direct current generator return, can freely carry out precision control, thereby realize clearance self-regulating brake clearance.
3) braking force of emergency brake is provided by direct current generator, this moment, the output torque of direct current generator can adopt brake petal control, brake petal is stepped on deeply more, the output torque of direct current generator is big more, the braking clamping force is also big more, so just can realize gradual braking, meet driver's braking custom more.
In a word, the present invention provides safety and comfortable driving environment more for the user.
Description of drawings
Fig. 1 is the transmission block diagram of vehicle electronic brake system actuator of the present invention.
Fig. 2 is the structural principle schematic representation of vehicle electronic brake system actuator of the present invention.
Among the figure: 101, storage battery, 102, direct current generator, 103, synchronous belt drive mechanism, 104, the involute planetary gear gear drive, 105, the slip screw driving mechanism, 106, piston, 107, brake pad assembly, 108, brake disc, 201, braking clamp body, 202, piston packing, 203, swivel nut, 204, screw rod, 205, screw, 206, front case, 207, the output inner gear seat, 208, output inner gear, 209, fixed annulus, 210, duplicate gear, 211, rear case, 212, big synchronous pulley, 213, eccentric shaft, 214, be with synchronously, 215, small synchronous pulley, 216, motor cabinet, 217, the vibration damping cover, 218, back-up ring.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Be the transmission block diagram of vehicle electronic brake system actuator of the present invention as shown in Figure 1.Storage battery 101, direct current generator 102, synchronous belt drive mechanism 103, involute planetary gear gear drive 104, slip screw driving mechanism 105, piston 106, brake pad assembly 107 and brake disc 108 transmit energy successively downwards.
Be the structural principle schematic representation of vehicle electronic brake system actuator of the present invention as shown in Figure 2.The present invention includes transmitting set and brake caliper assembly.The front case 206 of transmitting set and rear case 211 adopt fixed seal connection, form semi-enclosed housing, this housing that all the other component of transmitting set are housed links to each other with braking clamp body 201 by screw 205, in the front case 206 of transmitting set direct current generator 102 is housed, the output terminal of direct current generator 102 is supported on the motor cabinet 216 that is fixed in the front case 206, the other end is supported in the circular hole of front case 206 by vibration damping cover 217, small synchronous pulley 215 is housed on the output shaft of direct current generator 102, small synchronous pulley 215 is by linking to each other with the big synchronous pulley 212 that is contained in eccentric shaft 213 1 ends with 214 synchronously, eccentric shaft 213 is supported on the rear case 211 near an end of big synchronous pulley 212, the other end is supported on the output inner gear 208, the middle eccentric segment of eccentric shaft 213 is equipped with duplicate gear 210, duplicate gear 210 is near the gear and fixed annulus 209 engagements that are installed in the front case 206 of big synchronous pulley 212 1 sides, the opposite side gear of duplicate gear 210 and output inner gear 208 engagements, output inner gear 208 is installed on the output inner gear seat 207 in the front case 206 and links to each other with screw rod 204 external parts in the brake caliper assembly by spline, screw rod 204 external parts are equipped with back-up ring 218 near braking clamp body 201 1 sides, screw rod 204 not external part adopts self-locking thread to cooperate and be positioned at the non-circular hole of piston 106 with swivel nut 203, the groove that is installed in piston 106 close brake pad assembly 107 1 sides in the braking clamp body 201 cylinder holes cooperates with the boss of brake pad assembly 107, and the centre of two brake pad assemblies is equipped with brake disc 108.
Described duplicate gear 210, fixed annulus 209, output inner gear 208 and eccentric shaft 213 are formed involute planetary gear gear drive 104.
Described brake caliper assembly: comprise slip screw driving mechanism 105, piston 106, brake pad assembly 107 and the braking clamp body 201 formed by swivel nut 203 and screw rod 204.
The profile of tooth of described synchronous belt drive mechanism 103 is arc toothed.
Described involute planetary gear gear drive 104 is a 2Z-X type structure.
Described slip screw driving mechanism 105 comprises screw rod 204 and the swivel nut 203 that adopts the self-locking buttress thread form to cooperate.
Its working principle is: during service brake, high hydraulic brake fluid injects its interior cylinder hole by the filler opening on the braking clamp body 201, promotes piston 106 and brake pad assembly 107 clamping brake discs 108; When removing service brake, brake fluid returns oil storage cup from the cylinder hole of braking clamp body 201.During parking braking, direct current generator 102 is just changeing, by eccentric shaft 213 rotations that drive big synchronous pulley 212 with 214 synchronously and be fixed together with it that are fixed on the small synchronous pulley 215 on the motor shaft and cooperate with it, duplicate gear 210 is subjected to the driving of eccentric shaft 213, rotation on one side, revolve round the sun around fixed annulus 209 axis on one side, thereby driving output inner gear 208 rotates together with the screw rod 204 that links to each other by spline with it, and then make the swivel nut 203 that is subjected to piston 106 inner non-circular hole restrictions on the circumferencial direction can only axially promote piston 106 and brake pad assembly 107 clamping brake discs 108, because swivel nut 203 and screw rod 204 adopt the self-locking buttress thread form to cooperate, parking braking is safe and reliable; When removing parking braking, direct current generator 102 counter-rotatings, because screw rod 204 axially is subjected to back-up ring 218 restrictions, reciprocal displacement when swivel nut 203 produces with parking braking, the axial force that acts on the piston 106 is removed, and piston packing 202 is owing to exist resiliently deformable, reciprocal displacement when forcing piston 106 to produce a certain amount of and parking braking, recover certain clearance thereby make between brake pad assembly 107 and the brake disc 108, parking braking this moment is removed fully.
The foregoing description is to explanation of the present invention, is not limitation of the invention, and any structure after simple transformation on the basis of the present invention all belongs to protection scope of the present invention.
Claims (4)
1. vehicle electronic brake system actuator, comprise transmitting set and brake caliper assembly, the brake caliper assembly comprises: slip screw driving mechanism (105), piston (106), brake pad assembly (107) and the braking clamp body (201) be made up of swivel nut (203) and screw rod (204); It is characterized in that: front case of transmitting set (206) and rear case (211) are tightly connected, form semi-enclosed housing, transmitting set links to each other with braking clamp body (201) by screw (205), direct current generator (102) is housed in the front case of transmitting set (206), small synchronous pulley (215) is housed on the output shaft of direct current generator (102), small synchronous pulley (215) links to each other with the big synchronous pulley (212) that is contained in eccentric shaft (213) one ends by being with (214) synchronously, eccentric shaft (213) is supported on the rear case (211) near an end of big synchronous pulley (212), the other end is supported on the output inner gear (208), the middle eccentric segment of eccentric shaft (213) is equipped with duplicate gear (210), duplicate gear (210) is near the gear and fixed annulus (209) engagement that is installed in the front case (206) of big synchronous pulley (212) one sides, the opposite side gear of duplicate gear (210) and output inner gear (208) engagement, output inner gear (208) is installed in that output inner gear seat (207) in the front case (206) is gone up and links to each other with screw rod (204) external part in the brake caliper assembly by spline, screw rod (204) external part is equipped with back-up ring (218) near braking clamp body (201) one sides, screw rod (204) not external part adopts self-locking thread to cooperate and be positioned at the non-circular hole of described piston (106) with swivel nut (203), two brake pad assemblies (107) are arranged in the braking clamp body (201), the groove that is installed in close first brake pad assembly (107) one sides of described piston (106) in braking clamp body (201) the cylinder hole cooperates with the boss of first brake pad assembly (107), braking clamp body (201) inherent first, second the centre of totally two brake pad assemblies (107) brake disc (108) is installed.
2. a kind of vehicle electronic brake system actuator according to claim 1 is characterized in that: described duplicate gear (210), fixed annulus (209), output inner gear (208) and eccentric shaft (213) are formed involute planetary gear gear drive (104).
3. a kind of vehicle electronic brake system actuator according to claim 2 is characterized in that: described involute planetary gear gear drive (104) is a 2Z-X type structure.
4. vehicle electronic brake system actuator according to claim 3 is characterized in that: described slip screw driving mechanism (105) comprises described screw rod (204) and the described swivel nut (203) that adopts the self-locking buttress thread form to cooperate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101563348A CN101144514B (en) | 2007-10-19 | 2007-10-19 | Vehicle electronic brake system actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101563348A CN101144514B (en) | 2007-10-19 | 2007-10-19 | Vehicle electronic brake system actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101144514A CN101144514A (en) | 2008-03-19 |
| CN101144514B true CN101144514B (en) | 2010-06-02 |
Family
ID=39207186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101563348A Expired - Fee Related CN101144514B (en) | 2007-10-19 | 2007-10-19 | Vehicle electronic brake system actuator |
Country Status (1)
| Country | Link |
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| CN (1) | CN101144514B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100043694A (en) * | 2008-10-21 | 2010-04-29 | 주식회사 만도 | Electronic mechanical drum brake |
| CN102410324B (en) * | 2011-10-27 | 2013-11-06 | 奇瑞汽车股份有限公司 | Electromechanical brake and automobile |
| CN102966686B (en) * | 2012-11-29 | 2015-10-07 | 芜湖伯特利汽车安全系统有限公司 | A kind of brake caliper assembly of vehicle electronic parking braking system |
| CN104154148B (en) * | 2014-07-08 | 2017-03-08 | 邵亮 | Electric parking brake performs device |
| CN105782365A (en) * | 2014-12-25 | 2016-07-20 | 比亚迪股份有限公司 | Parking system for vehicle and vehicle with parking system |
| CN105905083A (en) * | 2016-05-20 | 2016-08-31 | 浙江万向精工有限公司 | Electronic parking brake assembly |
| CN106122317A (en) * | 2016-08-08 | 2016-11-16 | 吴小杰 | Electronic parking braking system of vehicle cycloid actuator |
| JP7087565B2 (en) * | 2018-03-29 | 2022-06-21 | 株式会社アドヴィックス | Brake device |
| CN108674179B (en) * | 2018-06-12 | 2024-03-26 | 精进电动科技股份有限公司 | Integrated electric drive power assembly |
| CN108757778A (en) * | 2018-08-14 | 2018-11-06 | 格陆博科技有限公司 | A kind of electric-controlled hydraulic integrated form multi-cylinder braking tongs |
| JP7131330B2 (en) * | 2018-11-21 | 2022-09-06 | トヨタ自動車株式会社 | Reduction gear and brake actuator using the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1168953A (en) * | 1996-03-01 | 1997-12-31 | 易通公司 | Driveline retarder with ball ramp loaded friction plates |
| CN1784319A (en) * | 2003-05-08 | 2006-06-07 | 克诺尔商用车制动系统有限公司 | Control electronics integrated in a brake, preferably a disc brake |
| EP1736388A2 (en) * | 2005-06-22 | 2006-12-27 | Mando Corporation | Electric parking brake system |
| CN2895873Y (en) * | 2005-11-18 | 2007-05-02 | 清华大学 | Connection-lever type electronic mechanical braking apparatus |
-
2007
- 2007-10-19 CN CN2007101563348A patent/CN101144514B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1168953A (en) * | 1996-03-01 | 1997-12-31 | 易通公司 | Driveline retarder with ball ramp loaded friction plates |
| CN1784319A (en) * | 2003-05-08 | 2006-06-07 | 克诺尔商用车制动系统有限公司 | Control electronics integrated in a brake, preferably a disc brake |
| EP1736388A2 (en) * | 2005-06-22 | 2006-12-27 | Mando Corporation | Electric parking brake system |
| CN2895873Y (en) * | 2005-11-18 | 2007-05-02 | 清华大学 | Connection-lever type electronic mechanical braking apparatus |
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| Publication number | Publication date |
|---|---|
| CN101144514A (en) | 2008-03-19 |
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Granted publication date: 20100602 Termination date: 20211019 |
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