CN102275576A - Automobile brake-by-wire system based on giant magnetostriction - Google Patents
Automobile brake-by-wire system based on giant magnetostriction Download PDFInfo
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- CN102275576A CN102275576A CN2011101492870A CN201110149287A CN102275576A CN 102275576 A CN102275576 A CN 102275576A CN 2011101492870 A CN2011101492870 A CN 2011101492870A CN 201110149287 A CN201110149287 A CN 201110149287A CN 102275576 A CN102275576 A CN 102275576A
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Abstract
The invention discloses an automobile brake-by-wire system based on giant magnetostriction. The system comprises wheel speed sensors, a pedal sensor, an electronic control unit, giant magnetostriction brake modules, and a power supply; the pedal sensor of the system is used for receiving a braking intention of a driver; during braking, a pedal corner sensor continuously converts a pedal corner signal into an electrical signal and inputs the electrical signal into an electronic control unit; and the electronic control unit performs analysis and calculation according to the signals input by the wheel speed sensors and the pedal sensor and inputs a control signal into the giant magnetostriction brake modules; and the giant magnetostriction brake modules output brake force according to current. A left rocker arm, a right rocker arm, a connection arm and a flexible hinge are integrally connected to form an H-shaped structure, so that the structure is simple and resistance magnetism is few; and the flexible hinge is easy to process, clearance and friction are avoided, high-precision motion can be realized, lubrication, pollution and friction are avoided, the stability is high, and the service life of a mechanism can be prolonged.
Description
Technical field
The present invention relates to a kind of line control brake system, particularly a kind of automobile line control brake system based on ultra-magnetic telescopic.
Background technology
The various maneuvering system forward electronizations of automobile, automation direction development, traditional automobile mechanical maneuvering system will become the electric system that links to each other with High Performance CPU by high speed fault-tolerant communications bus.To adopt electromotor and automatically controlled signal to realize steering-by-wire (steer by wire), brake-by-wire (brake by wire), line traffic control throttle (drive by wire or throttle by wire) and line traffic control suspension (suspension by wire) etc. as automobile
[1], adopt these line control systems will partly replace hydraulic pressure and mechanical control in the existing system.
Conventional hydraulic brake system oil circuit transfer conduit is long, and valve element is many, exists movement inertia and gap, and control command has certain delay from being issued to carry out.System is different with traditional braking, and line control brake system saves structures such as vacuum booster unit, master brake cylinder, pressure-regulating device, proportional distribution valve, oil line pipe with electronic component instead of part mechanical element.Make vehicle structure that basic the simplification be taken place, vacate big quantity space, alleviate quality and simplified handling labor, installation testing is simple and fast more, has eliminated the hydraulic circuit infiltration, makes more environmental protection of automobile.By ECU (Electrical Control Unit) control brake module, realize electron steering, reduce response time, improved vehicle active safety.In electronic control system, design corresponding program, handle electric control element and come the size of control brake power and the distribution of braking force, can realize braking anti-lock easily and drive functions such as anti-skidding.
At present, line control brake system is divided into two types: a kind of electro-hydraulic brake system; Another kind is an electromechanical braking system.
Summary of the invention
The purpose of this invention is to provide a kind of automobile line control brake system based on ultra-magnetic telescopic.
Technical scheme of the present invention is: a kind of automobile line control brake system based on ultra-magnetic telescopic, it comprises wheel speed sensors, pedal sensor, electronic control unit, the ultra-magnetic telescopic brake module, power supply, its pedal sensor is used for receiving the braking intention of chaufeur, in the braking procedure, the pedal rotary angle transmitter constantly is converted into electric signal with the pedal angular signal, and be entered into electronic control unit, electronic control unit is according to wheel speed sensors, the signal of pedal sensor input carries out analytical calculation, control signal is input to the ultra-magnetic telescopic brake module, and the ultra-magnetic telescopic module is exported braking force according to electric current.
Described ultra-magnetic telescopic brake module, comprise H type compliant structure, brake facing, drive source, the giant magnetostrictive rod that is wound with the mangneto coil is set in the described drive source, drive source is placed on the upper end of H type compliant mechanism, flexible hinge on the H type compliant mechanism comprises four otch and two flexible shafts---the weakest part between two pair of notches, wherein two otch are the opening between left rocking arm and the connecting arm, in addition two otch are with the opening of right rocking arm and connecting arm, the mangneto coil produces magnetic field under galvanic action makes giant magnetostrictive rod produce longitudinal travel, promote H type compliant mechanism and the longitudinal travel that giant magnetostrictive rod produces is amplified, cause H type compliant mechanism lower end to clamp brake disc and reach braking effect to the both sides expansion and by submissive hinge.
Beneficial effect of the present invention:
1., H type structure left side rocking arm, right rocking arm, connecting arm be connected as a single entity with flexible hinge, makes simple in structurely, it is few to hinder magnetic.
2., this flexible hinge is easy to processing and manufacturing, no gap and friction can realize high-precision motion, avoid lubricating, and be pollution-free, avoids wearing and tearing, good stability can improve mechanism service life; In addition, this flexible hinge is simple in structure, can adopt the wire cutting technology one-shot forming.
3., the end of otch is manhole, can prevent the damage of stress concentration to mechanism.
4., magnet coil can be wrapped on the giant magnetostrictive material saving space.
5., H type compliant mechanism left side rocking arm, right rocking arm, connecting arm form by the cutting of a spring steel with flexible hinge, good integrity, manufacturing process is simple.
Description of drawings
Fig. 1 is a control system schematic diagram of the present invention.
Fig. 2 is a ultra-magnetic telescopic brake module structural representation of the present invention.
Fig. 3 is the structural representation of drive source of the present invention.
The specific embodiment
Embodiment is shown in Fig. 1-2: a kind of automobile line control brake system based on ultra-magnetic telescopic, it comprises wheel speed sensors 2, pedal sensor 5, electronic control unit 4, ultra-magnetic telescopic brake module 1, power supply 3, its pedal sensor 5 is used for receiving the braking intention of chaufeur, in the braking procedure, pedal rotary angle transmitter 6 constantly is converted into electric signal with the pedal angular signal, and be entered into electronic control unit 4, electronic control unit 4 is according to wheel speed sensors 2, the signal of pedal sensor 5 inputs carries out analytical calculation, control signal is input to ultra-magnetic telescopic brake module 1, and ultra-magnetic telescopic module 1 is according to electric current output braking force.
Described ultra-magnetic telescopic brake module 4, comprise H type compliant structure 11, brake facing 10, drive source 7, in the described drive source 7 giant magnetostrictive rod 12 that is wound with mangneto coil 13 is set, drive source 7 is placed on the upper end of H type compliant mechanism 11, flexible hinge 8 on the H type compliant mechanism 11 comprises four otch and two flexible shafts---the weakest part between two pair of notches, wherein two otch are the opening between left rocking arm and the connecting arm, in addition two otch are with the opening of right rocking arm and connecting arm, mangneto coil 13 produces magnetic field under galvanic action makes giant magnetostrictive rod 12 produce longitudinal travel, promote H type compliant mechanism 11 and amplify, cause H type compliant mechanism 11 lower ends to clamp brake disc 9 and reach braking effect to both sides expansion and the longitudinal travel that produces by 8 pairs of giant magnetostrictive rods of submissive hinge.
Claims (2)
1.
A kind of automobile line control brake system based on ultra-magnetic telescopic is characterized in that:It comprises wheel speed sensors (2), pedal sensor (5), electronic control unit (4), ultra-magnetic telescopic brake module (1), power supply (3), its pedal sensor (5) is used for receiving the braking intention of chaufeur, in the braking procedure, pedal rotary angle transmitter (6) constantly is converted into electric signal with the pedal angular signal, and be entered into electronic control unit (4, electronic control unit (4) is according to wheel speed sensors (2), the signal of pedal sensor (5) input carries out analytical calculation, control signal is input to ultra-magnetic telescopic brake module (1), and ultra-magnetic telescopic module (1) is according to electric current output braking force.
2. a kind of automobile line control brake system according to claim 1 based on ultra-magnetic telescopic, it is characterized in that: described ultra-magnetic telescopic brake module (4), comprise H type compliant structure (11), brake facing (10), drive source (7), the giant magnetostrictive rod (12) that is wound with mangneto coil (13) is set in the described drive source (7), drive source (7) is placed on the upper end of H type compliant mechanism (11), flexible hinge (8) on the H type compliant mechanism (11) comprises four otch and two flexible shafts---the weakest part between two pair of notches, wherein two otch are the opening between left rocking arm and the connecting arm, in addition two otch are with the opening of right rocking arm and connecting arm, mangneto coil (13) produces magnetic field under galvanic action makes giant magnetostrictive rod (12) produce longitudinal travel, promote H type compliant mechanism (11) and the longitudinal travel that giant magnetostrictive rod (12) produces is amplified, cause H type compliant mechanism (11) lower end to clamp brake disc (9) and reach braking effect to the both sides expansion and by submissive hinge (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101492870A CN102275576A (en) | 2011-06-03 | 2011-06-03 | Automobile brake-by-wire system based on giant magnetostriction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101492870A CN102275576A (en) | 2011-06-03 | 2011-06-03 | Automobile brake-by-wire system based on giant magnetostriction |
Publications (1)
| Publication Number | Publication Date |
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| CN102275576A true CN102275576A (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101492870A Pending CN102275576A (en) | 2011-06-03 | 2011-06-03 | Automobile brake-by-wire system based on giant magnetostriction |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105644291A (en) * | 2016-03-24 | 2016-06-08 | 厦门理工学院 | Novel fully-active suspension apparatus and vehicle |
| CN110962825A (en) * | 2019-11-19 | 2020-04-07 | 南京航空航天大学 | Disc type brake-by-wire system based on magnetostrictive material and control method thereof |
| CN113294460A (en) * | 2021-05-17 | 2021-08-24 | 南京航空航天大学 | Novel disc brake and parameter multi-objective optimization design method thereof |
| CN114954387A (en) * | 2022-04-25 | 2022-08-30 | 南昌工程学院 | Intelligent automobile chassis control system based on unmanned technology |
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2011
- 2011-06-03 CN CN2011101492870A patent/CN102275576A/en active Pending
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| CN1066105A (en) * | 1991-03-12 | 1992-11-11 | 罗素·D·艾迪 | Be used for the friction member on frictin braek and the clutch |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105644291A (en) * | 2016-03-24 | 2016-06-08 | 厦门理工学院 | Novel fully-active suspension apparatus and vehicle |
| CN105644291B (en) * | 2016-03-24 | 2019-12-03 | 厦门理工学院 | Full Active suspension device and automobile |
| CN110962825A (en) * | 2019-11-19 | 2020-04-07 | 南京航空航天大学 | Disc type brake-by-wire system based on magnetostrictive material and control method thereof |
| CN110962825B (en) * | 2019-11-19 | 2023-12-29 | 南京航空航天大学 | Disk type linear control braking system based on magnetostrictive material and control method thereof |
| CN113294460A (en) * | 2021-05-17 | 2021-08-24 | 南京航空航天大学 | Novel disc brake and parameter multi-objective optimization design method thereof |
| CN113294460B (en) * | 2021-05-17 | 2022-04-22 | 南京航空航天大学 | Novel disc brake and parameter multi-objective optimization design method thereof |
| CN114954387A (en) * | 2022-04-25 | 2022-08-30 | 南昌工程学院 | Intelligent automobile chassis control system based on unmanned technology |
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Application publication date: 20111214 |