CN102923117A - Electromagnetic brake power-assisting system of electric automobile - Google Patents
Electromagnetic brake power-assisting system of electric automobile Download PDFInfo
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- CN102923117A CN102923117A CN2012104846814A CN201210484681A CN102923117A CN 102923117 A CN102923117 A CN 102923117A CN 2012104846814 A CN2012104846814 A CN 2012104846814A CN 201210484681 A CN201210484681 A CN 201210484681A CN 102923117 A CN102923117 A CN 102923117A
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Abstract
The invention relates to an electromagnetic brake power-assisting system of an electric automobile, which particularly comprises a brake master cylinder, an electromagnetic power booster, a controller and a pedal mechanism used for pushing the brake master cylinder. The electromagnetic power booster adopts a principle that an electromagnet is powered-on to attract; the core of the electromagnetic power booster is an electromagnet; and a movable iron core of the electromagnet is fixedly connected with a brake push rod, so that the electromagnetic power booster and the pedal mechanism can act on the brake master cylinder together to finish the brake power-assisting function. The electromagnet is connected with the controller, the mean current of the electromagnetic power booster is determined by the controller according to the position signal of a brake pedal, so that the brake power-assisting of the power booster is controlled in a real-time manner.
Description
Technical field
The invention belongs to the electronlmobil brake field, specifically a kind of electronlmobil electromagnetic braking force aid system.
Background technology
Electronlmobil braking technology field extensively adopts vacuum brake assistor to provide brake boost for chaufeur at present, and the degree of vacuum of vacuum booster is provided by vacuum reservoir and vacuum pump.The vacuum reservoir volume is larger, is unfavorable for car load space layout, and need to constantly keeps its certain degree of vacuum by the work of vacuum pump, and energy resource consumption is larger, is unfavorable for the lifting of electronlmobil continual mileage.In case the another kind of defective of stepping motor acceleration and deceleration device scheme that adopts is that motor breaks down, brake pedal is stepped on return all very large resistance, brings potential safety hazard.Other present brake servo unit can not be well and the regenerative brake collaborative work, realizes the distribution of braking force, further affected the lifting of electronlmobil continual mileage.
Summary of the invention
The purpose of this invention is to provide a kind of reduction energy resource consumption that has, increase the continual mileage of electronlmobil; Under brake resistance device failure conditions, do not affect manual braking's process; And the size of brake resistance dynamic adjustments as required, flexibly the electronlmobil electromagnetic braking force aid system of control.
To achieve these goals, the technical solution adopted in the present invention is as follows:
A kind of electronlmobil electromagnetic braking force aid system, comprise master brake cylinder, controller and the pedal gear that is used for promoting described master brake cylinder, described pedal gear comprises brake pedal, lever amplifying mechanism and brake push rod, described brake pedal is connected with an end of lever amplifying mechanism, one end of described brake push rod is movably fixed on the described lever amplifying mechanism, the other end of described brake push rod connects with described master brake cylinder, it is characterized in that: also comprise electromagnetic booster, described electromagnetic booster comprises electromagnet, the moving iron core of described electromagnet is captiveed joint with the described brake push rod of described pedal gear, and described electromagnet is connected with controller.
Described electromagnetic booster adopts a solenoid electromagnet, and its static iron core is fixed on the servo-unit shell and connects master brake cylinder one end, and in the middle of the static iron core perforation is arranged, and described pedal gear brake push rod passes from the hole, and moving iron core stretches into magnet coil one segment distance.
Described electromagnetic booster is equipped with pedal position sensor, and described pedal position sensor also comprises a pedal micro-switch, and micro-switch is used for perception chaufeur braking intention, and is used for triggering the brake boost program.Meanwhile pedal position sensor reaches described controller with the pedal stroke signal, controller obtains the size of coil current after calculation process, the output pwm control signal, thereby control the average exciting current of magnet coil, and then control in real time the size of described servo-unit brake boost.
Magnet coil is parallel with a flywheel diode and resistance in the described electromagnetic booster so that unloading during brake boost described magnet coil can safety, fast break.
Electromagnet in the described electromagnetic booster is provided with a main working gas gap, namely between moving iron core and static iron core.
Described electromagnetic booster is installed on the adapter plate that is connected with described master brake cylinder, and described force aid system for braking also comprises a brake check spring, and pull back spring is installed in described electromagnetic booster with respect to the other end of master brake cylinder.
The present invention has following beneficial effect owing to adopted technique scheme:
The present invention adopts the electromagnetic booster of an electromagnetic actuation action, automobile controller is after receiving brake pedal micro-switch and brake pedal position sensor signal, determine the average exciting current of magnet coil, produce corresponding electromagnetic attraction, thereby provide appropriate brake boost for braking procedure.And when the servo-unit et out of order, still can rely on the manual braking of chaufeur, make car brakeing.
Adopt electromagnetic booster of the present invention, can give up the huge vacuum reservoir of traditional vacuum servo-unit and vacuum pump, thereby needn't keep for a long time the degree of vacuum of vacuum reservoir, only need when braking, to power energy savings to servo-unit.But also can greatly reduce the structure space of force aid system for braking, and be beneficial to arrangement, simple in structure, easy for installation.
Adopt electromagnetic booster of the present invention, the size of its braking force can be carried out regulation and control according to chaufeur braking intention.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is electromagnetic booster 3 d effect graph of the present invention;
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
As shown in Figure 1, a kind of electronlmobil electromagnetic braking force aid system comprises master brake cylinder 1, is used for promoting the brake pedal 12 of master brake cylinder 1 and the electromagnetic booster 3 that connects described pedal gear brake push rod 9.Simultaneously be provided with pedal position sensor 10 at brake pedal 12 places, pedal position sensor 10 also comprises a pedal micro-switch, and the pedal micro-switch is used for perception chaufeur braking intention.Controller 13 triggers the brake boost program after receiving pedal micro-switch signal, then according to the average exciting current size of the signal deciding electromagnetic booster 3 of pedal position sensor 10, thus the power-assisted size of control electromagnetic booster 3.
Electromagnetic booster 3 adopts a solenoid electromagnet in the present embodiment, and its static iron core 4 is fixed on the servo-unit shell and connects master brake cylinder one end, and in the middle of the static iron core 4 perforation is arranged, and described pedal gear brake push rod 9 passes from the hole, to promote described master brake cylinder 1.Moving iron core 6 stretches into magnet coil 7 one segment distances, and captives joint with the brake push rod 9 of described pedal gear, thereby makes described servo-unit electromagnetic attraction and treadle effort combined action in master brake cylinder 1.
Electromagnet in the electromagnetic booster 3 only has a main working gas gap 5, namely between moving iron core 6 and static iron core 4.
Electromagnetic booster 3 is installed on the adapter plate 2 that is connected with described master brake cylinder 1, and described force aid system for braking also comprises a brake check spring 8, and pull back spring 8 is installed in described electromagnetic booster 3 with respect to the other end of master brake cylinder 1.
A kind of electronlmobil electromagnetic braking force aid system of present embodiment, its principle of work is as follows:
When chaufeur was stepped on brake pedal 12, on the one hand, treadle effort promoted brake push rod 9 after amplifying by lever amplifying mechanism 11; On the other hand, when chaufeur is stepped on brake pedal 12, brake boost program in the pedal micro-switch in the pedal position sensor 10 action and the trigger controller at first.Then controller 13 is exported corresponding pwm control signal according to the size of the required electromagnetic booster power-assisted of the calculated signals of pedal position sensor 10, thereby controls the average exciting current of magnet coil, and then controls in real time the size of described servo-unit brake boost.When having electric current to flow through in the magnet coil 7 in the electromagnetic booster 3, characteristic according to electromagnet, moving iron core 6 can be to static iron core 4 one lateral movements, thereby the brake push rod 9 that drive is captiveed joint with moving iron core 6 is to master brake cylinder 1 one lateral movements, this moment, the electromagnetic attraction of electromagnetic booster 3 just together acted on brake push rod 9 with the treadle effort of chaufeur, make master brake cylinder 1 produce braking oil pressure, realize the brake boost effect of electromagnetic booster 3.
When servo-unit lost efficacy, chaufeur still can by brake pedal 12 to master brake cylinder 1 applied thrust, make car brakeing.
Above-described embodiment; the present invention specific embodiment a kind of more preferably just; wherein the structure of each parts, setting position and connection mode thereof all can change to some extent; every equivalents and improvement of carrying out on the basis of technical solution of the present invention all should do not got rid of outside protection scope of the present invention.
Claims (7)
1. electronlmobil electromagnetic braking force aid system, comprise master brake cylinder, controller and the pedal gear that is used for promoting described master brake cylinder, described pedal gear comprises brake pedal, lever amplifying mechanism and brake push rod, described brake pedal is connected with an end of lever amplifying mechanism, one end of described brake push rod is movably fixed on the described lever amplifying mechanism, the other end of described brake push rod connects with described master brake cylinder, it is characterized in that: also comprise electromagnetic booster, described electromagnetic booster comprises electromagnet, the moving iron core of described electromagnet is captiveed joint with the described brake push rod of described pedal gear, and described electromagnet is connected with controller.
2. a kind of electronlmobil electromagnetic braking force aid system according to claim 1, it is characterized in that: described electromagnetic booster adopts a solenoid electromagnet, its static iron core is fixed on the servo-unit shell and connects master brake cylinder one end, and perforation is arranged in the middle of the static iron core, described pedal gear brake push rod passes from the hole, and moving iron core stretches into magnet coil one segment distance.
3. a kind of electronlmobil electromagnetic braking force aid system according to claim 2, it is characterized in that: magnet coil is parallel with a flywheel diode and resistance in the described electromagnetic booster.
4. a kind of electronlmobil electromagnetic braking force aid system according to claim 1 and 2, it is characterized in that: the electromagnet in the described electromagnetic booster is provided with a main working gas gap, and described main working gas gap is between moving iron core and static iron core.
5. a kind of electronlmobil electromagnetic braking force aid system according to claim 1, it is characterized in that: described pedal gear is equipped with pedal position sensor, described pedal position sensor mouth is connected with described controller, described pedal position sensor also comprises a brake pedal micro-switch, and described brake pedal micro-switch is connected with described controller.
6. a kind of electronlmobil electromagnetic braking force aid system according to claim 1, it is characterized in that: described electromagnetic booster is installed on the adapter plate that is connected with described master brake cylinder.
7. a kind of electronlmobil electromagnetic braking force aid system according to claim 1, it is characterized in that: also comprise a brake check spring, pull back spring is installed in described electromagnetic booster with respect to the other end of master brake cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210484681.4A CN102923117B (en) | 2012-11-23 | 2012-11-23 | Electromagnetic brake power-assisting system of electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210484681.4A CN102923117B (en) | 2012-11-23 | 2012-11-23 | Electromagnetic brake power-assisting system of electric automobile |
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| CN102923117A true CN102923117A (en) | 2013-02-13 |
| CN102923117B CN102923117B (en) | 2015-01-21 |
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| CN201210484681.4A Active CN102923117B (en) | 2012-11-23 | 2012-11-23 | Electromagnetic brake power-assisting system of electric automobile |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105015532A (en) * | 2015-05-27 | 2015-11-04 | 南京理工大学 | Braking system for vehicles, and vehicle with braking system |
| CN105015516A (en) * | 2015-02-05 | 2015-11-04 | 南京理工大学 | Method for realizing braking sense feedback on vehicle |
| CN105035062A (en) * | 2015-05-27 | 2015-11-11 | 南京理工大学 | High-safety vehicle braking system and braking method thereof |
| CN105035060A (en) * | 2015-05-27 | 2015-11-11 | 南京理工大学 | High-reliability vehicle braking system |
| CN106042942A (en) * | 2016-07-19 | 2016-10-26 | 深圳市伊诺动力科技有限公司 | Electric automobile energy recovery braking system |
| CN106809200A (en) * | 2017-01-22 | 2017-06-09 | 合肥工业大学 | A kind of coil magnet steel combines electromagnetism booster brake |
| CN107139913A (en) * | 2017-06-15 | 2017-09-08 | 吉林大学 | A kind of electric-controlled hydraulic power brake master cylinder |
| CN107139912A (en) * | 2017-06-15 | 2017-09-08 | 吉林大学 | A kind of distributed electronic hydraulic brake system |
| 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 |
| CN110103928A (en) * | 2019-04-26 | 2019-08-09 | 西安理工大学 | A kind of electromagnetism power-assisted braking arrangement and braking method |
| CN110271525A (en) * | 2019-07-26 | 2019-09-24 | 国唐汽车有限公司 | A kind of integrated form electromagnetism booster brake and its braking method |
| CN110562228A (en) * | 2019-09-10 | 2019-12-13 | 武汉理工大学 | Electric hydraulic power-assisted brake system of automobile |
| CN110606062A (en) * | 2019-09-20 | 2019-12-24 | 开沃新能源汽车集团有限公司 | Permanent magnet linear nonlinear line-control brake device |
| CN114056301A (en) * | 2020-07-30 | 2022-02-18 | 上汽通用汽车有限公司 | Soft stop control method and system of electronic control brake booster and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4445596A (en) * | 1981-09-08 | 1984-05-01 | Facet Enterprises, Inc. | Electromagnetically released spring applied friction brake with torque booster and driving force distributor |
| JPS6092151A (en) * | 1983-10-25 | 1985-05-23 | Mazda Motor Corp | Electromagnetic servo brake device for automobile |
| CN2827773Y (en) * | 2004-10-14 | 2006-10-18 | 江西昌河汽车股份有限公司 | Vehicle electromagnetic brake device |
| CN201089454Y (en) * | 2007-08-28 | 2008-07-23 | 比亚迪股份有限公司 | Electromagnetic assistor for braking |
| CN202186372U (en) * | 2011-08-15 | 2012-04-11 | 温州市东启汽车零部件制造有限公司 | Big-channel vacuum booster with electromagnet structure for regulating sealing gap |
| 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 |
-
2012
- 2012-11-23 CN CN201210484681.4A patent/CN102923117B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4445596A (en) * | 1981-09-08 | 1984-05-01 | Facet Enterprises, Inc. | Electromagnetically released spring applied friction brake with torque booster and driving force distributor |
| JPS6092151A (en) * | 1983-10-25 | 1985-05-23 | Mazda Motor Corp | Electromagnetic servo brake device for automobile |
| CN2827773Y (en) * | 2004-10-14 | 2006-10-18 | 江西昌河汽车股份有限公司 | Vehicle electromagnetic brake device |
| CN201089454Y (en) * | 2007-08-28 | 2008-07-23 | 比亚迪股份有限公司 | Electromagnetic assistor for braking |
| CN202186372U (en) * | 2011-08-15 | 2012-04-11 | 温州市东启汽车零部件制造有限公司 | Big-channel vacuum booster with electromagnet structure for regulating sealing gap |
| 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 |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105034822A (en) * | 2015-02-05 | 2015-11-11 | 南京理工大学 | Braking system used for vehicle |
| CN105015516A (en) * | 2015-02-05 | 2015-11-04 | 南京理工大学 | Method for realizing braking sense feedback on vehicle |
| CN105015515A (en) * | 2015-02-05 | 2015-11-04 | 南京理工大学 | Pedal brake sense feedback actuator for vehicle |
| CN105034820A (en) * | 2015-02-05 | 2015-11-11 | 南京理工大学 | Composite regenerative braking system used for vehicle |
| CN105034821A (en) * | 2015-02-05 | 2015-11-11 | 南京理工大学 | Composite regenerative braking method used for vehicle |
| CN105035057A (en) * | 2015-02-05 | 2015-11-11 | 南京理工大学 | Method for storing electric energy in vehicle |
| CN105109349A (en) * | 2015-02-05 | 2015-12-02 | 南京理工大学 | Vehicle braking system with high reliability |
| CN105035062A (en) * | 2015-05-27 | 2015-11-11 | 南京理工大学 | High-safety vehicle braking system and braking method thereof |
| CN105035060A (en) * | 2015-05-27 | 2015-11-11 | 南京理工大学 | High-reliability vehicle braking system |
| CN105015532A (en) * | 2015-05-27 | 2015-11-04 | 南京理工大学 | Braking system for vehicles, and vehicle with braking system |
| CN106042942A (en) * | 2016-07-19 | 2016-10-26 | 深圳市伊诺动力科技有限公司 | Electric automobile energy recovery braking system |
| CN106809200A (en) * | 2017-01-22 | 2017-06-09 | 合肥工业大学 | A kind of coil magnet steel combines electromagnetism booster brake |
| CN107139913A (en) * | 2017-06-15 | 2017-09-08 | 吉林大学 | A kind of electric-controlled hydraulic power brake master cylinder |
| CN107139912A (en) * | 2017-06-15 | 2017-09-08 | 吉林大学 | A kind of distributed electronic hydraulic brake system |
| CN107139912B (en) * | 2017-06-15 | 2019-01-22 | 吉林大学 | A kind of distributed electronic hydraulic brake system |
| 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 |
| CN110103928A (en) * | 2019-04-26 | 2019-08-09 | 西安理工大学 | A kind of electromagnetism power-assisted braking arrangement and braking method |
| CN110271525A (en) * | 2019-07-26 | 2019-09-24 | 国唐汽车有限公司 | A kind of integrated form electromagnetism booster brake and its braking method |
| CN110562228A (en) * | 2019-09-10 | 2019-12-13 | 武汉理工大学 | Electric hydraulic power-assisted brake system of automobile |
| CN110606062A (en) * | 2019-09-20 | 2019-12-24 | 开沃新能源汽车集团有限公司 | Permanent magnet linear nonlinear line-control brake device |
| CN114056301A (en) * | 2020-07-30 | 2022-02-18 | 上汽通用汽车有限公司 | Soft stop control method and system of electronic control brake booster and vehicle |
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