CN105480219B - A kind of automotive electronic parking brake - Google Patents
A kind of automotive electronic parking brake Download PDFInfo
- Publication number
- CN105480219B CN105480219B CN201511009578.4A CN201511009578A CN105480219B CN 105480219 B CN105480219 B CN 105480219B CN 201511009578 A CN201511009578 A CN 201511009578A CN 105480219 B CN105480219 B CN 105480219B
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- China
- Prior art keywords
- cone pulley
- output
- piston
- bridge joint
- wheel
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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
- 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
- B60T13/741—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 acting on an ultimate actuator
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention relates to a kind of automotive electronic parking brakes, belong to field of automobile brake.Parking motor is fixedly connected with motor gear in motor gear unit, setting input cone pulley and output cone pulley, motor gear is engaged with input cone pulley, in input cone pulley and export the bridge joint wheel that setting one can be slided along the conical surface among cone pulley, bridge joint wheel is driven by micro machine by screw rod one, linear movement can be done along the circular conical surface of input cone pulley and output cone pulley, power is transferred to output cone pulley by bridge joint wheel by input cone pulley, it exports cone pulley and connects double planetary reduction gear train, double planetary reduction gear train connecting screw two, screw rod two connects piston swivel nut, piston swivel nut is connect with piston, piston is assemblied in caliper.Advantage is: structure novel, increases speed ratio by gear, improves the response speed of system；In parking when needing to improve torque, gear reduces speed ratio, increases torque, can significantly improve system dynamic response characteristic.
Description
Technical field
The invention belongs to field of automobile brake, especially to the improvement of automobile parking braking.
Background technique
Automotive electronic parking brake is a kind of parking mechanical lever using electric mechanical mechanism instead of orthodox car
With the parking braking system of brake cable.The characteristics of system, is that the reliable parking of vehicle can be kept for a long time, is not required to after parking
Any energy supply is wanted, can be used as spare braking system in emergency circumstances, simplifies parking operation, saves riding space, it can be with
Integrated more safety and comfortable sexual function are the directions of current parking braking system development.
In previous automotive electronic parking brake product, in order to obtain bigger in limited component assembly space
Parking torque, need using deceleration system amplify motor output torque.It is disadvantageous in that, is reduced while increasing torque
System operational speed.After product design sizing, the limit speed and system response characteristic of motor are definite value.But actually make
With in the process, system should have different response speed requirements in the different operating stage.It is required that also being wanted while having large torque output
There is higher response speed.Parking braking system can be divided into starting, clamping, release stage when working, each stage turns round output
Square and response speed difference.
Start in system parking into brake clamping process and when reverse operating during system release parking,
It is relatively low to output torque requirement, require have piston motion that there is faster response speed instead.But in previous design,
After product design sizing, the revolving speed and system response data of motor are definite value, can not adjust response speed in the different phase of work
Degree.
Summary of the invention
The present invention provides a kind of automotive electronic parking brake, so that it is significantly improved the movement of electronic brake system and rings
Characteristic is answered, improves system output torque characteristic under various operating conditions, increases system application direction and comfort.
The technical solution adopted by the present invention is that: parking motor is fixedly connected with motor gear in motor gear unit, if
Input cone pulley and output cone pulley are set, motor gear is engaged with input cone pulley, is arranged one among input cone pulley and output cone pulley
The bridge joint wheel that can be slided along the conical surface, bridge joint wheel are driven by micro machine by screw rod one, can be along input cone pulley and output
The circular conical surface of cone pulley does linear movement, and power is transferred to output cone pulley by bridge joint wheel by input cone pulley, and output cone pulley connection is double
Rows of planetary deceleration train, double planetary reduction gear train connecting screw two, screw rod two connect piston swivel nut, and piston swivel nut and piston connect
It connects, piston is assemblied in caliper.
The present invention has the advantages that structure novel, increases cone pulley speed adjusting gear, in opening for parking in motor gear unit
Dynamic stage and system discharge the stage, increase speed ratio by gear, improve the response speed of system；It needs to improve in parking
When torque, gear reduces speed ratio, increases torque.System dynamic response characteristic can be significantly improved by gear.This
Invention may be used on needing hill start anti-back auxiliary, brake-by-wire, and for a long time in the intelligent automobiles control system such as parked vehicle.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
The structural schematic diagram of Fig. 2 change gear mechanism of the present invention.
Specific embodiment
Parking motor 1 is fixedly connected with motor gear 2 in motor gear unit, setting input cone pulley 3 and output cone pulley
4, motor gear 2 is engaged with input cone pulley 3, and setting one can be slided along the conical surface among input cone pulley 3 and output cone pulley 4
Bridge joint wheel 5, bridge joint wheel 5 by micro machine 6 by screw rod 1 drive, can along input cone pulley 3 and output cone pulley 4 circular cone
Linear movement is done in face, and power is transferred to output cone pulley 4 by bridge joint wheel 5 by input cone pulley 3, when bridge joint wheel 5 moves on screw rod 7
When, thus it is possible to vary the angular speed and torque of output cone pulley 4, output cone pulley 4 connect double planetary reduction gear train 8, and double planet subtracts
Fast 8 connecting screw 29 of train, screw rod 29 connect piston swivel nut 10, and piston swivel nut 10 is connect with piston 11, and piston 11 is assemblied in
In caliper 12.
Working principle: in motor gear unit, (1) (1) generation system driving force, motor drive motor gear to parking motor
(2), two cone pulleys are set in motor gear unit, respectively wheel for inputting and output wheel, one is arranged among two cone pulleys can be with
Along the bridge joint wheel that the conical surface slides, bridge joint wheel passes through screw drive by micro machine, can be in any position for being parked in the conical surface.It is logical
The position that gap bridge cock wheel is contacted with wheel for inputting and output wheel is different, changes operating radius.Under angularly velocity conditions, bridge joint wheel
It is different in the linear velocity of different contact surfaces, to change the angular speed of transmission ratio and output wheel, change output torque.Piston swivel nut
Piston motion is pushed, caliper, which clamps brake disc, under piston motion effect makes vehicle parks.
Double-cone pulley speed adjusting gear through the invention discharges the stage in the startup stage of parking and system, passes through variable-speed motor
Structure increases speed ratio, improves the response speed of system, and in parking when needing to improve torque, gear reduces speed ratio, increases and turns round
Square.
Claims (1)
1. a kind of automotive electronic parking brake, parking motor is fixedly connected with motor gear in motor gear unit, double
Planetary reduction gear train connecting screw two, screw rod two connect piston swivel nut, and piston swivel nut is connect with piston, and piston is assemblied in caliper
In, it is characterised in that: setting input cone pulley and output cone pulley, motor gear are engaged with input cone pulley, in input cone pulley and output
The bridge joint wheel that setting one can be slided along the conical surface among cone pulley, bridge joint wheel are driven by micro machine by screw rod one, Ke Yiyan
Input cone pulley and export the circular conical surface of cone pulley and do linear movement, power is transferred to output by bridge joint wheel and bored by input cone pulley
Wheel, different by bridging the position that wheel is contacted with wheel for inputting and output wheel when bridge joint wheel moves on screw rod, change effect half
Diameter, to change the angular speed and torque of output cone pulley, output cone pulley connects double planetary reduction gear train.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511009578.4A CN105480219B (en) | 2015-12-30 | 2015-12-30 | A kind of automotive electronic parking brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511009578.4A CN105480219B (en) | 2015-12-30 | 2015-12-30 | A kind of automotive electronic parking brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105480219A CN105480219A (en) | 2016-04-13 |
| CN105480219B true CN105480219B (en) | 2019-03-12 |
Family
ID=55667599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511009578.4A Active CN105480219B (en) | 2015-12-30 | 2015-12-30 | A kind of automotive electronic parking brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105480219B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371091B (en) * | 2019-07-24 | 2021-05-04 | 浙江诸暨万宝机械有限公司 | Vehicle parking system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86201676U (en) * | 1986-03-22 | 1987-09-12 | 陈大勇 | Auger-type differential mechanism |
| CN101722945A (en) * | 2009-12-12 | 2010-06-09 | 芜湖伯特利汽车安全系统有限公司 | Brake caliper assembly for electronic parking braking system of vehicle |
| CN102518716A (en) * | 2011-10-27 | 2012-06-27 | 奇瑞汽车股份有限公司 | Electric brake and automobile |
| CN202914600U (en) * | 2012-09-05 | 2013-05-01 | 天合汽车零部件（上海）有限公司 | Gear mechanism of automobile braking actuator |
| CN203404328U (en) * | 2013-07-23 | 2014-01-22 | 浙江万向精工有限公司 | Integrated EPB driving device for parking braking |
| CN205327049U (en) * | 2015-12-30 | 2016-06-22 | 吉林东光奥威汽车制动系统有限公司 | Automotive electronics parking brake |
-
2015
- 2015-12-30 CN CN201511009578.4A patent/CN105480219B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86201676U (en) * | 1986-03-22 | 1987-09-12 | 陈大勇 | Auger-type differential mechanism |
| CN101722945A (en) * | 2009-12-12 | 2010-06-09 | 芜湖伯特利汽车安全系统有限公司 | Brake caliper assembly for electronic parking braking system of vehicle |
| CN102518716A (en) * | 2011-10-27 | 2012-06-27 | 奇瑞汽车股份有限公司 | Electric brake and automobile |
| CN202914600U (en) * | 2012-09-05 | 2013-05-01 | 天合汽车零部件（上海）有限公司 | Gear mechanism of automobile braking actuator |
| CN203404328U (en) * | 2013-07-23 | 2014-01-22 | 浙江万向精工有限公司 | Integrated EPB driving device for parking braking |
| CN205327049U (en) * | 2015-12-30 | 2016-06-22 | 吉林东光奥威汽车制动系统有限公司 | Automotive electronics parking brake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105480219A (en) | 2016-04-13 |
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