CN201089454Y - Electromagnetic assistor for braking - Google Patents
Electromagnetic assistor for braking Download PDFInfo
- Publication number
- CN201089454Y CN201089454Y CNU2007201752383U CN200720175238U CN201089454Y CN 201089454 Y CN201089454 Y CN 201089454Y CN U2007201752383 U CNU2007201752383 U CN U2007201752383U CN 200720175238 U CN200720175238 U CN 200720175238U CN 201089454 Y CN201089454 Y CN 201089454Y
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- CN
- China
- Prior art keywords
- permanent magnet
- brake
- magnet coil
- push rod
- pedal
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- Expired - Lifetime
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Abstract
The utility model provides a brake electromagnetic booster which comprises a brake pedal, a pedal push rod, a return spring, a shell, the utility model also comprises an electromagnetic coil, a permanent magnet, an electronic control unit and a sensor, wherein, one of the electromagnetic coil and the permanent magnet is fixed on one end of the shell, and the other one of the electromagnetic coil and the permanent magnet is fixedly connected with part of the pedal push rod inside the shell; the return spring is positioned between the other end of the shell and the electromagnetic coil or the permanent magnet fixed on the pedal push rod; the sensor is connected to the brake pedal; an input end and an output end of the electronic control unit are electrically connected with the sensor and the electromagnetic coil respectively. The brake booster has small used space and a compact structure; meanwhile, because a boosting source is not affected by ambient pressure, the boosting effect can be more stable, thereby improving the brake efficiency.
Description
Technical field
The utility model relates to automobile manufacturing field, relates to a kind of vehicle brake booster particularly.
Background technology
Brake booster is used to remedy the insufficient pressure of trampling brake pedal when the driver brakes in vehicle, to strengthen the braking effect of brake system.The brake servo unit that adopts in the automobile manufacturing field has hydraulic servo brake servo-unit and vacuum brake assistor at present.Wherein, the hydraulic servo brake servo-unit is to utilize high pressure liquid potential source or high pressure fuel source as the power-assisted source, by changing master brake cylinder, designs special hydraulic tubing, the control boost pressure, thus realize brake boost.Vacuum brake assistor then is to utilize driving engine trunnion place or the special degree of vacuum that vacuum apparatus produced that is equipped with and barometric pressure that power-assisted is provided when the difference of pressure of servo-unit diaphragm both ends of the surface formation is helped chaufeur at the brake activation pedal.
But these two kinds of brake servo units in use all exist defective.At first these two kinds of servo-units need hydraulic power source or vacuum source as the power-assisted source, and this makes the attendant equipment of force aid system increase, the system architecture complexity, and because vacuum source and hydraulic power source can be subjected to the influence of ambient pressure, so the power-assisted instability that provides; Secondly because vacuum pump can produce very big noise when work, therefore when vacuum brake assistor being applied on quiet electronlmobil or the hybrid vehicle, it is particularly outstanding that noise problem seems, if and use the hydraulic servo brake servo-unit, then can cause the preponderance of whole vehicle body, thereby influence the performance of vehicle.
The utility model content
The utility model needs hydraulic power source or vacuum source as the power-assisted source at existing brake booster, thereby cause that force aid system equipment is many, complex structure, power-assisted instability, and the shortcoming that has problems such as noise, weightening finish, provide a kind of volume little, compact conformation, the power-assisted effect stability, while noiselessness, lightweight braking electromagnetism work-saving device.
The braking electromagnetism work-saving device that the utility model provides comprises brake pedal, pedal push rod, pull back spring and housing, and wherein, this device also comprises magnet coil, permanent magnet, electronic control unit and sensor; In described magnet coil and the permanent magnet one is fixed on an end of housing, another person is connected with the partial fixing that pedal push rod is positioned at housing, pull back spring is at the housing other end and be fixed between the magnet coil or permanent magnet on the pedal push rod, described sensor is connected on the described brake pedal, and the input end of described electronic control unit and mouth are electrically connected with described sensor and magnet coil respectively.
The electric current that brake booster provided by the utility model only needs to be directly proportional with angular transposition by the brake pedal angular transposition output size that electronic control unit senses according to sensor is to magnet coil, if this moment, pull back spring was positioned at the end of housing away from brake pedal, then the control current direction is so that magnet coil produces the magnetic field opposite with the permanent magnet field direction; If this moment, pull back spring was positioned at the end of housing near brake pedal, then the control current direction is so that magnet coil produces the magnetic field identical with the permanent magnet field direction, according to the principle that the magnetic field same polarity is repelled each other, unlike polarity is inhaled mutually, magnet coil can produce the power that promotes or spur the permanent magnet motion, can reach the power-assisted effect, therefore reduced the usage quantity of attendant equipment, simplified system architecture, make taking up room of brake booster reduce, compact conformation has made things convenient for the layout of each parts in the vehicle.Because the power-assisted source is not subjected to the influence of ambient pressure, therefore make that the power-assisted effect is more stable simultaneously, improved brake efficiency.And, therefore be fit to be applied to electronlmobil and hybrid vehicle because brake booster provided by the utility model has the little advantage of noise in light weight and the operation process.
Description of drawings
The schematic cross-section of the braking electromagnetism work-saving device that Fig. 1 provides for the utility model;
The schematic cross-section of a kind of embodiment of the braking electromagnetism work-saving device that Fig. 2 provides for the utility model;
The control signal connection diagram of the braking electromagnetism work-saving device that Fig. 3 provides for the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, the utility model provides a kind of braking electromagnetism work-saving device, described device comprises brake pedal 1, pedal push rod 2, pull back spring 3 and housing 4, and wherein, this device also comprises magnet coil 5, permanent magnet 6, electronic control unit 7 and sensor 8; In described magnet coil 5 and the permanent magnet 6 one is fixed on an end of housing 4, another person is connected with the partial fixing that pedal push rod 2 is positioned at housing 4, pull back spring 3 is at housing 4 other ends and be fixed between the magnet coil 5 or permanent magnet 6 on the pedal push rod 2, described sensor 8 is connected on the described brake pedal 1, and the input end of described electronic control unit 7 and mouth are electrically connected with described sensor 8 and magnet coil 5 respectively.
Described sensor 8 is used to gather the angular displacement signal that brake pedal 1 rotates, and sensor 8 can be selected for use and well known to a person skilled in the art various angular transducers, as potentiometer type angular transducer, Hall-type angular transducer etc., preferably select the Hall-type angular transducer for use.
Wherein, described housing 4 comprises that for cylindrical housings and in its bottom surface detachable end, the ends that are fixed on housing 4 in magnet coil 5 and the permanent magnet 6 are embodied as one in magnet coil 5 and the permanent magnet 6 here and are fixed on the described end cap.
In order to make the interaction force maximum between permanent magnet 6 and the magnet coil 5, under the preferable case, or the coincidence parallel with pedal push rod of the axis of described magnet coil 5 and permanent magnet 6, the axis of the axis of described permanent magnet 6 and described magnet coil 5 coincides.The magnetic line of force direction of permanent magnet 6 is parallel with the magnetic line of force of magnet coil 5, thereby makes this electromagnetism work-saving device have better power-assisted effect.
Wherein, pull back spring 3 can and the partial fixing bonded assembly magnet coil 5 or permanent magnet 6 and housing 4 arbitrary end faces of pedal push rod 2 in housing 4 between.As shown in Figure 1, the position of described magnet coil 5, permanent magnet 6 and pull back spring 3 and annexation can be fixed on the end of housing 4 near brake pedals 1 for described magnet coil 5 or permanent magnet 6, permanent magnet 6 or magnet coil 5 are connected with the partial fixing that pedal push rod 2 is positioned at housing 4, and pull back spring 3 is at housing 4 other ends and be fixed between the permanent magnet 6 or magnet coil 5 on the pedal push rod 2.Like this when chaufeur is trampled brake pedal 1, described pedal push rod 2 is pushed ahead, pull back spring 3 is compressed, described sensor 8 is gathered the angular transposition of brake pedal 1 and will be represented that the signal a of described angular transposition is transferred into electronic control unit (ECU) 7, ECU according to angular displacement signal a to magnet coil 5 outgoing currents, so that magnet coil 5 produces and the opposite magnetic field of permanent magnet 6 magnetic directions, the principle of repelling mutually according to same polarity, described magnet coil 5 produces the power of repelling each other with permanent magnet 6, thereby produces the power that promotes pedal push rod 2; When chaufeur loosen the brake 1, pull back spring 3 will overcome the application force between magnet coil 5 and the permanent magnet 6 and make pedal push rod 2 be returned to original position, the angular transposition of brake pedal 1 can diminish gradually in this process, the electric current that provides to magnet coil 5 also can constantly reduce, and power-assisted also can weaken gradually.
In addition, as shown in Figure 2, the position of described magnet coil 5, permanent magnet 6 and pull back spring 3 and annexation can also for: described magnet coil 5 or permanent magnet 6 are fixed on the end of housing 4 away from brake pedal 1, permanent magnet 6 or magnet coil 5 are connected with the partial fixing that pedal push rod 2 is positioned at housing 4, and the two ends of pull back spring 3 are separately fixed at housing 4 other ends and are fixed on the permanent magnet 6 or magnet coil 5 on the pedal push rod 2.Like this when chaufeur is trampled brake pedal 1, described pedal push rod 2 is pushed ahead, pull back spring 3 is stretched, described sensor 8 is gathered the angular transposition of brake pedal 1 and will be represented that the signal a of described angular transposition is transferred into electronic control unit 7, ECU according to angular displacement signal a to magnet coil 5 outgoing currents, so that magnet coil 5 produces and the identical magnetic field of permanent magnet 6 magnetic directions, the principle that attracts mutually according to unlike polarity, described magnet coil 5 produces the power that attracts mutually with permanent magnet, thereby produces the power that promotes pedal push rod 2; When chaufeur loosen the brake 1, pull back spring 3 will overcome the application force between magnet coil 5 and the permanent magnet 6 and make pedal push rod 2 be returned to original position, the angular transposition of brake pedal 1 can diminish gradually in this process, the electric current that provides to magnet coil 5 also can constantly reduce, and power-assisted also can weaken gradually.
Above-mentioned ECU is directly proportional with the angular transposition of brake pedal 1 to the electric current of magnet coil 5 outputs, when chaufeur is trampled brake pedal 1, along with the angular transposition of brake pedal 1 constantly increases, pedal push rod 2 can be pushed ahead, the electric current that provides to magnet coil 5 also constantly increases, and consequent power-assisted also can constantly increase; When chaufeur loosen the brake 1, the angular transposition of brake pedal 1 can diminish gradually, and the electric current that provides to magnet coil 5 also can constantly reduce, and power-assisted also can weaken gradually.
Brake booster provided by the utility model only needs electric current to be provided for magnet coil 5 by electronic control unit 7 according to brake pedal 1 angular transposition, thereby magnet coil 5 produces and the opposite or identical magnetic field of permanent magnet 6 magnetic directions, repel each other according to the magnetic field same polarity, the principle that unlike polarity is inhaled mutually, magnet coil 5 can produce the power that promotes permanent magnet 6 motions, can reach the power-assisted effect, therefore reduced the usage quantity of attendant equipment, simplified system architecture, make taking up room of brake booster reduce, compact conformation has made things convenient for the layout of each parts in the vehicle.Because the power-assisted source is not subjected to the influence of ambient pressure, therefore make that the power-assisted effect is more stable simultaneously, improved brake efficiency.And, therefore be fit to be applied to electronlmobil and hybrid vehicle because brake booster provided by the utility model has the little advantage of noise in light weight and the operation process.
Claims (4)
1. brake the electromagnetism work-saving device for one kind, described device comprises brake pedal (1), pedal push rod (2), pull back spring (3) and housing (4), it is characterized in that this device also comprises magnet coil (5), permanent magnet (6), electronic control unit (7) and sensor (8); In described magnet coil (5) and the permanent magnet (6) one is fixed on an end of housing (4), another person is connected with the partial fixing that pedal push rod (2) is positioned at housing (4), pull back spring (3) is positioned at housing (4) other end and is fixed between the magnet coil (5) or permanent magnet (6) on the pedal push rod (2), described sensor (8) is connected on the described brake pedal (1), and the input end of described electronic control unit (7) and mouth are electrically connected with described sensor (8) and magnet coil (5) respectively.
2. device according to claim 1, it is characterized in that, described magnet coil (5) or permanent magnet (6) are fixed on the end of housing (4) away from brake pedal (1), permanent magnet (6) or magnet coil (5) are connected with the partial fixing that pedal push rod (2) is positioned at housing (4), and the two ends of pull back spring (3) are separately fixed at housing (4) other end and are fixed on the permanent magnet (6) or magnet coil (5) on the pedal push rod (2).
3. device according to claim 1 and 2 is characterized in that, described magnet coil (5) or coincidence parallel with pedal push rod with the axis of permanent magnet (6), and the axis of the axis of described permanent magnet (6) and described magnet coil (5) coincides.
4. device according to claim 1 and 2 is characterized in that, described sensor (8) is the Hall-type angular transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201752383U CN201089454Y (en) | 2007-08-28 | 2007-08-28 | Electromagnetic assistor for braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201752383U CN201089454Y (en) | 2007-08-28 | 2007-08-28 | Electromagnetic assistor for braking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201089454Y true CN201089454Y (en) | 2008-07-23 |
Family
ID=39861213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201752383U Expired - Lifetime CN201089454Y (en) | 2007-08-28 | 2007-08-28 | Electromagnetic assistor for braking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201089454Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102481918A (en) * | 2009-09-07 | 2012-05-30 | 罗伯特博世有限公司 | Brake system including a master cylinder and an electric brake booster |
| CN102529931A (en) * | 2010-11-08 | 2012-07-04 | 罗伯特·博世有限公司 | Valve return spring with filter support for a pneumatic brake booster assembly |
| CN102529935A (en) * | 2011-12-21 | 2012-07-04 | 浙江吉利汽车研究院有限公司 | Electric power assisting device for automobile brake system |
| CN102849647A (en) * | 2012-09-11 | 2013-01-02 | 成都市新筑路桥机械股份有限公司 | Electromagnetic braking device for rail car |
| CN102923117A (en) * | 2012-11-23 | 2013-02-13 | 武汉理工大学 | Electromagnetic brake power-assisting system of electric automobile |
| CN103089867A (en) * | 2013-01-25 | 2013-05-08 | 徐園植 | Magnetic pressure servo brake master cylinder |
| CN103089866A (en) * | 2013-01-25 | 2013-05-08 | 徐園植 | Magnetic pressure type brake master cylinder |
| CN103115093A (en) * | 2013-01-25 | 2013-05-22 | 余虹仪 | Magnetic pressure type proportional distribution type brake master cylinder |
| CN103612628A (en) * | 2013-11-21 | 2014-03-05 | 南宁明航节能科技有限公司 | Brake electromagnetic booster for new energy automobile |
| CN104564903A (en) * | 2014-12-29 | 2015-04-29 | 潍柴动力股份有限公司 | Hydraulic oil cylinder, hydraulic clutch operation mechanism and control method |
| CN108216160A (en) * | 2018-01-02 | 2018-06-29 | 北京汽车股份有限公司 | Electromagnetism energy assisted braking system unites and with its vehicle |
| CN108313036A (en) * | 2018-01-11 | 2018-07-24 | 江苏大学 | A kind of electromagnet brake pedal apparatus and control method |
| CN109162981A (en) * | 2018-10-15 | 2019-01-08 | 华侨大学 | A kind of electric-hydraulic combined driving hydraulic cylinder |
| CN113232634A (en) * | 2021-06-03 | 2021-08-10 | 重庆三峡学院 | Electric vehicle brake pedal simulator and brake pedal feedback control method |
| CN114161928A (en) * | 2021-12-02 | 2022-03-11 | 安徽天平机械股份有限公司 | Clutch operating mechanism and tractor |
-
2007
- 2007-08-28 CN CNU2007201752383U patent/CN201089454Y/en not_active Expired - Lifetime
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102481918B (en) * | 2009-09-07 | 2014-09-17 | 罗伯特博世有限公司 | Brake system including a master cylinder and an electric brake booster |
| CN102481918A (en) * | 2009-09-07 | 2012-05-30 | 罗伯特博世有限公司 | Brake system including a master cylinder and an electric brake booster |
| CN102529931A (en) * | 2010-11-08 | 2012-07-04 | 罗伯特·博世有限公司 | Valve return spring with filter support for a pneumatic brake booster assembly |
| CN102529935A (en) * | 2011-12-21 | 2012-07-04 | 浙江吉利汽车研究院有限公司 | Electric power assisting device for automobile brake system |
| CN102529935B (en) * | 2011-12-21 | 2014-11-26 | 浙江吉利汽车研究院有限公司 | Electric power assisting device for automobile brake system |
| CN102849647A (en) * | 2012-09-11 | 2013-01-02 | 成都市新筑路桥机械股份有限公司 | Electromagnetic braking device for rail car |
| CN102849647B (en) * | 2012-09-11 | 2015-12-16 | 成都市新筑路桥机械股份有限公司 | For the electro-magnetic braking device of small rail car |
| CN102923117A (en) * | 2012-11-23 | 2013-02-13 | 武汉理工大学 | Electromagnetic brake power-assisting system of electric automobile |
| CN102923117B (en) * | 2012-11-23 | 2015-01-21 | 武汉理工大学 | Electromagnetic brake power-assisting system of electric automobile |
| CN103089866A (en) * | 2013-01-25 | 2013-05-08 | 徐園植 | Magnetic pressure type brake master cylinder |
| CN103115093A (en) * | 2013-01-25 | 2013-05-22 | 余虹仪 | Magnetic pressure type proportional distribution type brake master cylinder |
| CN103089867A (en) * | 2013-01-25 | 2013-05-08 | 徐園植 | Magnetic pressure servo brake master cylinder |
| CN103089867B (en) * | 2013-01-25 | 2016-01-20 | 徐園植 | Magnetic pressure servo brake master cylinder |
| CN103115093B (en) * | 2013-01-25 | 2015-09-23 | 重庆市喜植机械设备有限公司 | Magnetic pressure type proportional distribution type brake master |
| CN103612628A (en) * | 2013-11-21 | 2014-03-05 | 南宁明航节能科技有限公司 | Brake electromagnetic booster for new energy automobile |
| CN104564903A (en) * | 2014-12-29 | 2015-04-29 | 潍柴动力股份有限公司 | Hydraulic oil cylinder, hydraulic clutch operation mechanism and control method |
| CN108216160A (en) * | 2018-01-02 | 2018-06-29 | 北京汽车股份有限公司 | Electromagnetism energy assisted braking system unites and with its vehicle |
| CN108313036A (en) * | 2018-01-11 | 2018-07-24 | 江苏大学 | A kind of electromagnet brake pedal apparatus and control method |
| CN108313036B (en) * | 2018-01-11 | 2021-04-20 | 江苏大学 | Novel electromagnetic brake pedal device and control method |
| CN109162981A (en) * | 2018-10-15 | 2019-01-08 | 华侨大学 | A kind of electric-hydraulic combined driving hydraulic cylinder |
| CN109162981B (en) * | 2018-10-15 | 2020-12-01 | 华侨大学 | Electro-hydraulic compound driving hydraulic cylinder |
| CN113232634A (en) * | 2021-06-03 | 2021-08-10 | 重庆三峡学院 | Electric vehicle brake pedal simulator and brake pedal feedback control method |
| CN113232634B (en) * | 2021-06-03 | 2022-05-27 | 重庆三峡学院 | Electric vehicle brake pedal simulator and brake pedal feedback control method |
| CN114161928A (en) * | 2021-12-02 | 2022-03-11 | 安徽天平机械股份有限公司 | Clutch operating mechanism and tractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080723 |