CN100560412C - Electric booster device for automobile parking braking - Google Patents
Electric booster device for automobile parking braking Download PDFInfo
- Publication number
- CN100560412C CN100560412C CNB2006100609212A CN200610060921A CN100560412C CN 100560412 C CN100560412 C CN 100560412C CN B2006100609212 A CNB2006100609212 A CN B2006100609212A CN 200610060921 A CN200610060921 A CN 200610060921A CN 100560412 C CN100560412 C CN 100560412C
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- CN
- China
- Prior art keywords
- planetary gear
- speed reducing
- gear speed
- reducing mechanism
- angular transducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The invention discloses a kind of electric booster device for automobile parking braking that is applicable to the manual parking brake system that is provided with brake-applying handle, mainly be by assist motor, power-transfer clutch, planetary gear speed reducing mechanism, angular transducer, and the electronic control unit that is built-in with first set angle and second set angle is formed, wherein, the output shaft of assist motor is connected with the input shaft of planetary gear speed reducing mechanism by power-transfer clutch, and the output shaft of planetary gear speed reducing mechanism is connected by the rotating shaft on the brake-applying handle of coupler and manual parking brake system, planetary gear speed reducing mechanism also is fixed together assist motor with an angular transducer that is used for detecting the rotational angle of handle, angular transducer all is electrically connected with electronic control unit.This mechanism structure is simple, can provide power-assisted for the chaufeur braking during standstill.
Description
Technical field
The present invention relates to the device of a kind of automobile parking braking aspect, especially relate to a kind of simple in structurely, can provide power-assisted electric booster device for automobile parking braking for the chaufeur braking during standstill.
Background technology
What at present, the emergency brake system of existing car adopted is the manually operated parking brake lever.When braking during standstill, the pull-up joystick, joystick drives cable systems, and cable systems makes disc type (or drum-type) the drg locking tire of trailing wheel, thereby realizes parking braking function.Specifically can consult the CN89216395 patent of China.But, the joystick of this structure has certain requirement to the chaufeur hand-power, if the strength of chaufeur smaller (as women's chaufeur) might can not be moved joystick to the position because strength is not enough, and cause effectively reaching the braking during standstill effect, and cause a hidden trouble.
Summary of the invention
In view of above-mentioned deficiency, it is a kind of simple in structure that main purpose of the present invention is to provide, and can provide power-assisted electric booster device for automobile parking braking for the chaufeur braking during standstill.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of electric booster device for automobile parking braking that is applicable to the manual parking brake system that is provided with brake-applying handle, mainly be by assist motor, power-transfer clutch, planetary gear speed reducing mechanism, angular transducer, and the electronic control unit that is built-in with first set angle and second set angle is formed, wherein, the output shaft of assist motor is connected with the input shaft of planetary gear speed reducing mechanism by power-transfer clutch, and the output shaft of planetary gear speed reducing mechanism is connected by the rotating shaft on the brake-applying handle of coupler and manual parking brake system, planetary gear speed reducing mechanism also is fixed together assist motor with an angular transducer that is used for detecting the rotational angle of handle, angular transducer all is electrically connected with electronic control unit.
On the said structure basis, wherein:
Planetary gear speed reducing mechanism is that the axle that passes brake-applying handle is fixed together with angular transducer.
Electronic control unit also is electrically connected with the CAN bus of automobile.
The present invention is compared to prior art, and its advantage is, the position of the axle of the present invention on the brake-applying handle of manual parking brake system, install an assist motor additional, when therefore implementing braking during standstill, provide power-assisted by motor, make strength require to reduce greatly, eliminate braking hidden danger chaufeur.
In addition, electronic control unit among the present invention also is electrically connected with the CAN bus of automobile, therefore can, behind the parking engine off, ECU obtains the automobile power source closing signal, and the anglec of rotation of the brake-applying handle that the while angular transducer provides is less than first set angle, and ECU is with the control clutch closure so, automatically parking brake lever is gone to the target location by assist motor, eliminate braking hidden danger.
Description of drawings
In order to be easy to explanation, the present invention is done to describe in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is the structural representation of electric booster device for automobile parking braking of the present invention.
Fig. 2 is the structural representation of the planetary gear speed reducing mechanism of electric booster device for automobile parking braking of the present invention.
The specific embodiment
See also Fig. 1 and Fig. 2, electric booster device for automobile parking braking of the present invention, be to be applicable to the manual parking brake system that is provided with brake-applying handle, mainly be (to call ECU in the following text by electronic control unit, scheme not shown), assist motor 2, power-transfer clutch 3, planetary gear speed reducing mechanism 4, angular transducer 5 is formed, and wherein, the output shaft of assist motor 2 is by power-transfer clutch 3, be connected with the input shaft 6 of planetary gear speed reducing mechanism 4, and the output shaft 7 of planetary gear speed reducing mechanism 4 is connected by the rotating shaft on the brake-applying handle 1 of coupler (as spline) and manual parking brake system.The axle that planetary gear speed reducing mechanism 4 also passes brake-applying handle 1 is fixed together with angular transducer 5.Assist motor 2, angular transducer 5 all are electrically connected with ECU.
In the present embodiment, assist motor 2 adopts non-brush permanent-magnet DC motor, rated voltage 12V; Power-transfer clutch 3 adopts monolithic dry type magnetic clutch; Angular transducer 5 just adopts common angular transducer.
Under specify principle of work of the present invention:
When hand of driver draws fixed handle 1, (this first set angle is the ECU default value to make the handle rotation surpass first set angle, but its size is the best with the angle that hand of driver draws fixed handle 1 minimum pull-up, such as 5 degree), when ECU receives handle that angular transducer 5 detects 1 rotational angle is when surpassing the signal of this first set angle, ECU promptly sends signal and makes power-transfer clutch 3 closures, and drive motor 2 rotates simultaneously, provides power-assisted to chaufeur pulling handle; Reach second set angle (this second set angle also is the ECU default value when angular transducer 5 detects brake-applying handle 1 corner, its size is meant angle required when the angle of handle 1 pull-up has reached safe full application of brake, such as 80) time, ECU control clutch 3 disconnects, and gives assist motor 2 outages.Brake-applying handle 1 promptly can lean on the escapement of itself to be locked at the braking position place.
When ECU received motor failure signal, ECU was that control clutch is no longer closed, and this moment, chaufeur still can lean on former pure mechanical emergency brake system to realize braking during standstill.
In addition, draw fixed handle 1 in order to prevent to forget after chaufeur from stopping, the hidden danger that causes, ECU also is electrically connected with the CAN bus of automobile.Therefore, when chaufeur closing automobile power supply and when extracting automobile key, ECU obtains the automobile power source closing signal, the anglec of rotation of the brake-applying handle 1 that while angular transducer 5 provides is less than first set angle, ECU is with control clutch 3 closures so, drive motor 2 rotates simultaneously, and independent drive brake-applying handle 1 turns to second set angle; When angular transducer 5 detects brake-applying handle 1 rotational angle and reaches second set angle, ECU promptly can disconnect by control clutch 3, and give assist motor 2 outages, brake-applying handle 1 can be locked at the braking position place by the escapement of itself, avoids braking hidden danger with this.
Claims (3)
1. electric booster device for automobile parking braking that is applicable to the manual parking brake system that is provided with brake-applying handle, mainly be by assist motor, power-transfer clutch, planetary gear speed reducing mechanism, angular transducer, and the electronic control unit that is built-in with first set angle and second set angle is formed, wherein, the output shaft of assist motor is connected with the input shaft of planetary gear speed reducing mechanism by power-transfer clutch, and the output shaft of planetary gear speed reducing mechanism is connected by the rotating shaft on the brake-applying handle of coupler and manual parking brake system, planetary gear speed reducing mechanism also is fixed together assist motor with an angular transducer that is used for detecting the rotational angle of handle, angular transducer all is electrically connected with electronic control unit.
2. electric booster device for automobile parking braking as claimed in claim 1, wherein the planetary gear speed reducing mechanism axle that passes brake-applying handle is fixed together with angular transducer.
3. electric booster device for automobile parking braking as claimed in claim 1 or 2, wherein electronic control unit also is electrically connected with the CAN bus of automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100609212A CN100560412C (en) | 2006-05-30 | 2006-05-30 | Electric booster device for automobile parking braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100609212A CN100560412C (en) | 2006-05-30 | 2006-05-30 | Electric booster device for automobile parking braking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101081616A CN101081616A (en) | 2007-12-05 |
| CN100560412C true CN100560412C (en) | 2009-11-18 |
Family
ID=38911477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100609212A Expired - Fee Related CN100560412C (en) | 2006-05-30 | 2006-05-30 | Electric booster device for automobile parking braking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100560412C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870356A (en) * | 2010-06-10 | 2010-10-27 | 西北工业大学 | Parallel type worm gear and worm screw high-torque actuator |
| CN102678916B (en) * | 2012-05-30 | 2015-05-27 | 长城汽车股份有限公司 | Parking locking system |
| CN106740750B (en) * | 2016-12-30 | 2023-12-05 | 华南理工大学 | Brake pedal assembly for controlling pedal opening of stepping motor |
| CN112855817B (en) * | 2019-11-28 | 2022-03-18 | 比亚迪股份有限公司 | Release device for parking brake system, parking brake system and vehicle |
| CN112389405A (en) * | 2020-11-02 | 2021-02-23 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Hand brake protection method, system and device and automobile |
-
2006
- 2006-05-30 CN CNB2006100609212A patent/CN100560412C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101081616A (en) | 2007-12-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20210530 |