CN105480219A - Automobile electronic parking brake - Google Patents
Automobile electronic parking brake Download PDFInfo
- Publication number
- CN105480219A CN105480219A CN201511009578.4A CN201511009578A CN105480219A CN 105480219 A CN105480219 A CN 105480219A CN 201511009578 A CN201511009578 A CN 201511009578A CN 105480219 A CN105480219 A CN 105480219A
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- China
- Prior art keywords
- cone pulley
- pulley
- piston
- screw rod
- motor
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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 invention relates to an automobile electronic parking brake, and belongs to the field of automobile brake. In a motor gear unit, a parking motor is fixedly connected with a motor gear, an input cone pulley and an output cone pulley are arranged, the motor gear is meshed wiht the input cone pulley, and a bridging pulley which can slide along a conical surface is arranged between the input cone pulley and the output cone pulley; the bridging pulley is driven through a screw rod I by a micro motor, and can make liner movement along the conical surfaces of the input cone pulley and the output cone pulley; the input cone pulley transmits power to the output cone pulley through the bridging pulley, and the output cone pulley is connected with a dual-row planetary reduction gear system which is connected with a screw rod II; the screw rod II is connected with a piston thread sleeve which is connected with a piston, and the piston is assembled in braking pliers. The automobile electronic parking brake disclosed by the invention has the advantages that the structure is novel, a speed change mechanism is arranged, so that the speed ratio is increased, and the response speed of the system is increased; when torque during parking needs to be increased, the speed change mechanism enables the speed ratio to be reduced and the torque to be increased, so that the dynamic response property of the system can be notably improved.
Description
Technical field
The invention belongs to field of automobile brake, especially to the improvement of automobile parking braking.
Background technology
Automotive electronic parking drg is that a kind of electric mechanical mechanism that uses instead of the parking mechanical lever of orthodox car and the emergency brake system of brake cable.The feature of system is to keep the reliable parking of vehicle for a long time, without any need for power supply after parking, can be used as spare braking system in emergency circumstances, simplify parking operation, save riding space, can integrated more safety and comfort function, be the direction of current emergency brake system development.
In automotive electronic parking drg product in the past, in order in limited Assembly of the parts space, obtain larger parking moment of torsion, need to use deceleration system to amplify the output torque of motor.Weak point is, reduces system running speed while increasing moment of torsion.After product design sizing, the limit speed of motor and system response characteristic are definite value.But in actual use, system should have different speed of response requirements in the different operating stage.While requiring high pulling torque output, also to there is higher speed of response.Can be divided into startup, clamping, release stage during emergency brake system work, each stage is different with speed of response to output torque.
Start in drg clamping process in system parking, and in the process of system release parking during reverse operating, require relatively low to output torque, require piston movement on the contrary and there is speed of response faster.But in design in the past, after product design sizing, the rotating speed of motor and system response data are definite value, cannot in the different phase adjustment speed of response of work.
Summary of the invention
The invention provides a kind of automotive electronic parking drg, make it significantly improve the action response characteristic of electronic brake system, improve system output torque characteristic under various operating conditions, increase system application direction and traveling comfort.
The technical scheme that the present invention takes is: in motor gear unit, parking motor is fixedly connected with motor gear, input cone pulley is set and exports cone pulley, motor gear engages with input cone pulley, a bridge joint wheel that can slide along the conical surface is set in the middle of input cone pulley and output cone pulley, bridge joint wheel is driven by screw rod one by micromotor, motion of translation can be done along the circular conical surface of input cone pulley and output cone pulley, input cone pulley is taken turns transmission of power to exporting cone pulley by bridge joint, export cone pulley and connect double planetary reduction gear train, double planetary reduction gear train connecting screw rod two, screw rod two connects piston swivel nut, piston swivel nut is connected with piston, Piston assembling is in brake clamp.
The invention has the advantages that: novel structure, in motor gear unit, increase cone pulley regulating mechanism, parking unloading phase and the system release stage, increase speed ratio by speed-changing mechanism, improve the speed of response of system; Parking need improve moment of torsion time, speed-changing mechanism reduce speed ratio, increase moment of torsion.System dynamic response characteristic can be significantly improved by speed-changing mechanism.The present invention may be used on needing that hill start anti-back is auxiliary, brake-by-wire, and in the intelligent vehicle control system such as long-time parked vehicle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
The structural representation of Fig. 2 change gear mechanism of the present invention.
Detailed description of the invention
In motor gear unit, parking motor 1 is fixedly connected with motor gear 2, input cone pulley 3 is set and exports cone pulley 4, motor gear 2 engages with input cone pulley 3, a bridge joint wheel 5 that can slide along the conical surface is set in the middle of input cone pulley 3 and output cone pulley 4, bridge joint wheel 5 is driven by screw rod 1 by micromotor 6, motion of translation can be done along the circular conical surface of input cone pulley 3 and output cone pulley 4, transmission of power is extremely exported cone pulley 4 by bridge joint wheel 5 by input cone pulley 3, when bridge joint wheel 5 moves on screw rod 7, the cireular frequency and moment of torsion that export cone pulley 4 can be changed, export cone pulley 4 and connect double planetary reduction gear train 8, double planetary reduction gear train 8 connecting screw rod 29, screw rod 29 connects piston swivel nut 10, piston swivel nut 10 is connected with piston 11, piston 11 is assemblied in brake clamp 12.
Principle of work: in motor gear unit, (1) parking motor produces system drive power, (1) drive motor gear is (2) for motor, two cone pulleys are set in motor gear unit, be respectively wheel for inputting and output wheel, in the middle of two cone pulleys, arrange a bridge joint wheel that can slide along the conical surface, bridge joint wheel passes through screw drive by micromotor, can in the optional position being anchored in the conical surface.The position contacted with output wheel by bridge joint wheel and wheel for inputting is different, changes radius of action.Under angularly velocity conditions, bridge joint wheel is different in the linear velocity of different contact surface, thus changes the cireular frequency of transmitting ratio and output wheel, changes output torque.Piston swivel nut promotes piston movement, and under piston movement effect, brake clamp clamping brake disc makes vehicle parks.
By double-cone pulley regulating mechanism of the present invention, parking unloading phase and the system release stage, increase speed ratio by speed-changing mechanism, improve the speed of response of system, parking need to improve moment of torsion time, speed-changing mechanism reduces speed ratio, increases moment of torsion.
Claims (1)
1. an automotive electronic parking drg, in motor gear unit, parking motor is fixedly connected with motor gear, input cone pulley is set and exports cone pulley, motor gear engages with input cone pulley, a bridge joint wheel that can slide along the conical surface is set in the middle of input cone pulley and output cone pulley, bridge joint wheel is driven by screw rod one by micromotor, motion of translation can be done along the circular conical surface of input cone pulley and output cone pulley, input cone pulley is taken turns transmission of power to exporting cone pulley by bridge joint, export cone pulley and connect double planetary reduction gear train, double planetary reduction gear train connecting screw rod two, screw rod two connects piston swivel nut, piston swivel nut is connected with piston, Piston assembling is in brake clamp.
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 true CN105480219A (en) | 2016-04-13 |
| CN105480219B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371091A (en) * | 2019-07-24 | 2019-10-25 | 浙江诸暨万宝机械有限公司 | A kind of 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***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***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***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***有限公司 | Automotive electronics parking brake |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371091A (en) * | 2019-07-24 | 2019-10-25 | 浙江诸暨万宝机械有限公司 | A kind of vehicle parking system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105480219B (en) | 2019-03-12 |
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