CN109114135B - Electromagnetic type drive-by-wire electronic brake - Google Patents
Electromagnetic type drive-by-wire electronic brake Download PDFInfo
- Publication number
- CN109114135B CN109114135B CN201811329426.6A CN201811329426A CN109114135B CN 109114135 B CN109114135 B CN 109114135B CN 201811329426 A CN201811329426 A CN 201811329426A CN 109114135 B CN109114135 B CN 109114135B
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- disc
- brake
- electromagnetic
- driven
- electromagnetic disc
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- 238000009434 installation Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000011217 control strategy Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004904 shortening Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
- F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/20—Electric or magnetic using electromagnets
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
An electromagnetic wire-control electronic brake comprises calipers, a left friction plate, a right friction plate, a brake disc, a nut component, a driven electromagnetic disc, a return spring set, a driving electromagnetic disc, a check ring, a brake pedal sensor, a wheel speed sensor and a controller; the driven electromagnetic disc is arranged on the end cap through a bearing and is in threaded connection with the nut component; a return spring group is arranged between the driven electromagnetic disc and the end cap and used for resetting when the braking of the driven electromagnetic disc is finished, and then the driven electromagnetic disc drives the nut component to reset; when the driven electromagnetic disc rotates, the push plate is driven to move left through screw transmission, and then the right friction plate is pushed to press the brake disc to generate braking. The invention can fully utilize the kinetic energy of the vehicle, and drive the friction plate to press the brake disc to brake in a way of taking force by the electromagnetic disc, thereby effectively saving cost, reducing installation space, rapidly responding to a braking instruction, shortening braking distance and improving braking safety.
Description
Technical Field
The invention relates to an automobile brake, in particular to an electromagnetic wire control electronic brake.
Background
In recent years, new energy automobiles in China are rapidly developed, however, many technical problems of the new energy automobiles still remain to be effectively solved, and the key problem is low driving mileage. However, the battery capacity cannot be improved simply by increasing the number of batteries, and in order to improve the driving range of the new energy vehicle, the problem is often solved by sacrificing the riding comfort of the driver, such as removing an air conditioner. The method for improving the driving range of the new energy vehicle by reducing the electric energy consumption of the accessories is also an effective technical means.
Currently, vehicle braking systems mainly employ a hydraulic braking mode. The conventional fuel vehicle braking system assists braking and boosting by taking vacuum at the throat of an engine so as to reduce the operation force intensity of a brake pedal of a driver; the new energy automobile adopts a method of additionally adding a vacuum pump to realize auxiliary braking reinforcement, so that the additional consumption of electric energy is caused, and the driving mileage is further influenced. Hydraulic braking systems themselves have certain drawbacks, such as: 1. the brake pipeline is long, so that the brake lag is caused; 2. the brake fluid needs to be replaced, pollution is increased, and the like.
It is believed in the automotive industry that the use of brake-by-wire systems instead of conventional hydraulic braking systems is a necessary trend, with the advantages of brake-by-wire systems over conventional hydraulic braking systems: 1. the response speed is high, the braking distance is effectively shortened, and the braking safety of the vehicle is improved; 2. and the control circuit is adopted, so that dependence on the installation space of the vehicle is reduced.
The existing brake-by-wire system mainly adopts a motor as a braking power source, and performs speed and torque reduction and power transmission through a speed reducing mechanism, and because the braking gap between a friction plate and a brake disc is small, the braking motor is always in a locked-rotor state when an automobile brakes, and the performance requirement on the motor is extremely high, so that the price is high; meanwhile, the contradiction between the motor torque and the structural size is difficult to solve, and the market popularization and application are restricted.
In summary, how to solve the technical defects of the brake motor used in the brake-by-wire system is a key problem to be solved in the current urgent need. Therefore, a new approach is developed, and a new brake-by-wire is necessary.
Disclosure of Invention
Aiming at the defects of the existing braking system, the invention provides the electromagnetic type wire control electronic brake which can fully utilize the kinetic energy of a vehicle, and the friction plate is driven to press the brake disc to brake in a way of taking force by the electromagnetic disc, so that the cost is effectively saved, the installation space is reduced, the braking instruction is responded quickly, the braking distance is shortened, and the braking safety is improved.
The invention is realized by the following technical measures:
An electromagnetic wire-control electronic brake comprises calipers, a left friction plate, a right friction plate, a brake disc, a nut component, a driven electromagnetic disc, a return spring set, a driving electromagnetic disc, a check ring, a brake pedal sensor, a wheel speed sensor and a controller; the calipers are arranged on the frame, and the left friction plate and the right friction plate are respectively arranged in notches on the calipers, which are matched with the calipers, so as to carry out rotation limiting; the brake disc is arranged between the left friction plate and the right friction plate, and the brake clearance between the brake disc and the left friction plate and between the brake disc and the brake disc are 0.1 mm-1 mm; the end cap on the brake disc is provided with a spline notch and a check ring notch; the driven electromagnetic disc is arranged on the end cap through a bearing, and is in threaded connection with the nut component; a return spring group is arranged between the driven electromagnetic disc and the end cap and used for resetting when the braking of the driven electromagnetic disc is finished, and then the driven electromagnetic disc drives the nut component to reset;
The nut assembly consists of a push plate and a nut, the push plate is fixedly connected with the nut, the push plate is arranged in a guide groove of the caliper, and the left side surface of the push plate is contacted with the back steel surface of the right friction plate; when the driven electromagnetic disc rotates, the push plate is driven to move left through screw transmission, so that the right friction plate is pushed to press the brake disc to generate braking;
The driving electromagnetic disc is in spline connection with the end cap, the check ring is arranged in a check ring notch of the end cap, and the check ring is used for limiting the driving electromagnetic disc to move rightwards and axially; the installation gap between the driven electromagnetic disc and the driving electromagnetic disc is 0.5 mm-2 mm;
The brake pedal sensor, the wheel speed sensor, the driven electromagnetic disc and the driving electromagnetic disc are electrically connected with the controller, the brake pedal sensor and the wheel speed sensor transmit collected signals to the controller, and the controller controls the driven electromagnetic disc and the driving electromagnetic disc to attract so as to transmit torque according to a control strategy, and the torque is controlled by a control current.
Friction plates are arranged on the driven electromagnetic disc and the driving electromagnetic disc.
The spline teeth are machined on the driving electromagnetic disc and are used for matching with spline grooves machined on the end cap on the brake disc.
And an electromagnetic coil is arranged on the driven electromagnetic disc.
The electromagnetic coil is arranged on the driving electromagnetic disc.
The beneficial effects of the invention are as follows:
An electromagnetic type drive-by-wire electronic brake can fully utilize vehicle kinetic energy, push a friction plate to press a brake disc to brake in a mode of taking force by an electromagnetic disc, and can effectively save cost, reduce installation space, quickly respond to a braking instruction, shorten braking distance and improve braking safety. Compared with the prior art, the method has the following beneficial effects:
1. The vehicle kinetic energy is fully utilized, and the friction plate is pushed to press the brake disc to brake in a way of taking force by the electromagnetic disc, so that the technical problem that the existing hydraulic brake system depends on vacuum to assist braking and boosting is effectively solved; meanwhile, the problem of dependence of the existing linear control motor system on a high-performance motor is solved;
2. the hydraulic brake pipeline is omitted, the response time is reduced, and the problem of brake hysteresis caused by the length of the brake pipeline of the existing hydraulic brake system is solved;
3. the problem of energy consumption caused by long-time work of the auxiliary parts of the new energy vehicle is effectively solved, and the driving mileage is improved;
4. and a linear control dynamic mode is adopted, so that the system integration with ABS, EBD and the like is facilitated.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the structure of the present invention.
FIG. 2 is a schematic diagram of the structure of the present invention.
Fig. 3 is a right side view of the present invention.
Fig. 4 is a front view of the present invention.
Fig. 5 is a left side view of the present invention.
Fig. 6 is a top view of the present invention.
FIG. 7 is a schematic view of a part of the structure of the present invention.
Fig. 8 is a schematic structural view of a driven electromagnetic disk according to the present invention.
Fig. 9 is a schematic view of the structure of the driven electromagnetic disk of the present invention.
Fig. 10 is a schematic view of a nut assembly according to the present invention.
FIG. 11 is a schematic view of the caliper of the present invention.
FIG. 12 is a schematic illustration of the caliper of the present invention.
Fig. 13 is a schematic view of the structure of the brake disc of the present invention.
Fig. 14 is a schematic diagram of a control system according to the present invention.
In the figure, 1-calipers, 2-left friction plates, 3-right friction plates, 4-brake discs, 401-end caps, 5-nut assemblies, 501-push plates, 502-nuts, 6-driven electromagnetic discs, 7-return spring sets, 8-driven electromagnetic discs, 9-check rings, 10-brake pedal sensors, 11-wheel speed sensors and 12-controllers.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is described below by means of a specific embodiment in combination with the accompanying drawings.
An electromagnetic drive-by-wire electronic brake comprises a caliper 1, a left friction plate 2, a right friction plate 3, a brake disc 4, a nut assembly 5, a driven electromagnetic disc 6, a return spring set 7, a driving electromagnetic disc 8, a check ring 9, a brake pedal sensor 10, a wheel speed sensor 11 and a controller 12; the caliper 1 is arranged on a frame, and the left friction plate 2 and the right friction plate 3 are respectively arranged in notches matched with the caliper 1 so as to carry out rotation limiting; the brake disc 4 is arranged between the left friction plate 2 and the right friction plate 3, and the brake clearance between the brake disc 4 and the left friction plate 2 and the brake clearance between the brake disc 4 and the brake clearance between the brake disc and the brake disc 3 are 0.1 mm-1 mm; as shown in fig. 13, the end cap 401 on the brake disc 4 is provided with a spline notch and a check ring notch; the driven electromagnetic disc 6 is arranged on the end cap 401 through a bearing, and the driven electromagnetic disc 6 is in threaded connection with the nut component 5; a return spring group 7 is arranged between the driven electromagnetic disc 6 and the end cap 401 and is used for resetting when the braking of the driven electromagnetic disc 6 is finished, and the driven electromagnetic disc 6 drives the nut component 5 to reset;
The nut assembly 5 consists of a push plate 501 and a nut 502, wherein the push plate 501 is fixedly connected with the nut 502, the push plate 501 is arranged in a guide groove of the caliper 1, and the left side surface of the push plate 501 is contacted with the back steel surface of the right friction plate 3; when the driven electromagnetic disc 6 rotates, the push plate 501 is driven to move left through screw transmission, so that the right friction plate 3 is pushed to press the brake disc 4 to generate braking;
The driving electromagnetic disc 8 is in spline connection with the end cap 401, the retainer ring 9 is arranged in a retainer ring notch of the end cap 401, and the retainer ring 9 is used for limiting the driving electromagnetic disc 8 to move rightwards and axially; the installation clearance between the driven electromagnetic disc 6 and the driving electromagnetic disc 8 is 0.5 mm-2 mm;
The brake pedal sensor 10, the wheel speed sensor 11, the driven electromagnetic disc 6 and the driving electromagnetic disc 8 are electrically connected with the controller 12, the brake pedal sensor 10 and the wheel speed sensor 11 transmit collected signals to the controller 12, the controller 12 controls the driven electromagnetic disc 6 and the driving electromagnetic disc 8 to suck according to a control strategy so as to transmit torque, and the torque is controlled by a control current.
Friction plates are arranged on the driven electromagnetic disk 6 and the driving electromagnetic disk 8.
The driving electromagnetic disc 8 is provided with spline teeth which are used for matching with spline grooves formed on the end cap 401 on the brake disc 4.
The driven electromagnetic disk 6 is provided with an electromagnetic coil.
The electromagnetic coil is arranged on the driving electromagnetic disc 8.
When the vehicle brakes, the brake pedal sensor 10 and the wheel speed sensor 11 transmit collected signals to the controller 12, and the controller 12 controls the attraction of the driven electromagnetic disc 6 and the driving electromagnetic disc 8 according to a control strategy so as to transmit torque, and the torque is controlled by control current; the driving electromagnetic disc 8 drives the driven electromagnetic disc 6 to rotate, the driven electromagnetic disc 6 moves left along the axial direction of the end cap 401 on the brake disc 4 through the screw thread driving nut component 5, the push plate 501 on the nut component 5 moves left along the guide groove on the caliper 1, and then the push plate 501 pushes the right friction plate 3 to press the brake disc 4 to generate braking;
When the braking is finished, the controller 12 cuts off the control current of the driven electromagnetic disk 6 and the driving electromagnetic disk 8, the driven electromagnetic disk 6 and the driving electromagnetic disk 8 are separated, the return spring group 7 enables the driven electromagnetic disk 6 to reset, and then the driven electromagnetic disk 6 drives the nut assembly 5 to reset, and the braking force is relieved.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative, not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the appended claims, which are within the scope of the present invention.
Claims (5)
1. An electromagnetic type wire-control electronic brake comprises a caliper (1), a left friction plate (2), a right friction plate (3), a brake disc (4), a nut component (5), a driven electromagnetic disc (6), a return spring group (7), a driving electromagnetic disc (8), a retainer ring (9), a brake pedal sensor (10), a wheel speed sensor (11) and a controller (12); the method is characterized in that: the caliper (1) is arranged on the frame, and the left friction plate (2) and the right friction plate (3) are respectively arranged in notches on the caliper (1) which are matched with the caliper so as to carry out rotation limiting; the brake disc (4) is arranged between the left friction plate (2) and the right friction plate (3), and the brake clearance between the brake disc (4) and the left friction plate (2) and the brake clearance between the brake disc and the brake disc (3) are 0.1 mm-1 mm; the end cap (401) on the brake disc (4) is provided with a spline notch and a check ring notch; the driven electromagnetic disc (6) is arranged on the end cap (401) through a bearing, and the driven electromagnetic disc (6) is in threaded connection with the nut component (5); a return spring group (7) is arranged between the driven electromagnetic disc (6) and the end cap (401) and is used for resetting when the braking of the driven electromagnetic disc (6) is finished, and then the driven electromagnetic disc (6) drives the nut component (5) to reset;
The nut assembly (5) consists of a push plate (501) and a nut (502), wherein the push plate (501) is fixedly connected with the nut (502), the push plate (501) is arranged in a guide groove of the caliper (1), and the left side surface of the push plate (501) is in surface contact with the back steel surface of the right friction plate (3); when the driven electromagnetic disc (6) rotates, the push plate (501) is driven to move left through screw transmission, so that the right friction plate (3) is pushed to press the brake disc (4) to generate braking;
The driving electromagnetic disc (8) is in spline connection with the end cap (401), the retainer ring (9) is arranged in a retainer ring notch of the end cap (401), and the retainer ring (9) is used for limiting the driving electromagnetic disc (8) to move rightwards and axially; the installation gap between the driven electromagnetic disc (6) and the driving electromagnetic disc (8) is 0.5-2 mm;
The brake pedal sensor (10), the wheel speed sensor (11), the driven electromagnetic disc (6) and the driving electromagnetic disc (8) are electrically connected with the controller (12), the brake pedal sensor (10) and the wheel speed sensor (11) transmit collected signals to the controller (12), and the controller (12) controls the driven electromagnetic disc (6) and the driving electromagnetic disc (8) to absorb the torque according to a control strategy so as to transmit the torque, and the torque is controlled by a control current.
2. An electromagnetic brake-by-wire as defined in claim 1, wherein: friction plates are arranged on the driven electromagnetic plate (6) and the driving electromagnetic plate (8).
3. An electromagnetic brake-by-wire as defined in claim 1, wherein: spline teeth are machined on the driving electromagnetic disc (8) and are used for being matched with spline grooves machined on an end cap (401) on the brake disc (4).
4. An electromagnetic brake-by-wire as defined in claim 1, wherein: and an electromagnetic coil is arranged on the driven electromagnetic disc (6).
5. An electromagnetic brake-by-wire as defined in claim 1, wherein: an electromagnetic coil is arranged on the driving electromagnetic disc (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811329426.6A CN109114135B (en) | 2018-11-09 | 2018-11-09 | Electromagnetic type drive-by-wire electronic brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811329426.6A CN109114135B (en) | 2018-11-09 | 2018-11-09 | Electromagnetic type drive-by-wire electronic brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109114135A CN109114135A (en) | 2019-01-01 |
| CN109114135B true CN109114135B (en) | 2024-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811329426.6A Active CN109114135B (en) | 2018-11-09 | 2018-11-09 | Electromagnetic type drive-by-wire electronic brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109114135B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469691A (en) * | 2019-01-11 | 2019-03-15 | 山东交通学院 | A kind of electromagnetic type brake-by-wire device with heat sinking function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990014629U (en) * | 1997-10-07 | 1999-05-06 | 정몽규 | Automotive brake system |
| JP2005343194A (en) * | 2004-05-31 | 2005-12-15 | Advics:Kk | Brake fluid pressure control device for vehicle and brake device for vehicle |
| CN105840694A (en) * | 2016-06-21 | 2016-08-10 | 重庆交通大学 | Electromagnet and friction composite disk type brake and brake method thereof |
| CN107448520A (en) * | 2017-09-26 | 2017-12-08 | 浙江师范大学 | A kind of electric mechanical brake-by-wire device |
| CN107588126A (en) * | 2017-09-26 | 2018-01-16 | 浙江师范大学 | A kind of electric mechanical brake-by-wire device |
| WO2018120786A1 (en) * | 2016-12-29 | 2018-07-05 | 合肥工业大学 | Drive-by-wire brake acting through motor in combination with magnetostriction |
| CN209012296U (en) * | 2018-11-09 | 2019-06-21 | 山东交通学院 | A kind of electromagnetic type line traffic control electronic brake |
-
2018
- 2018-11-09 CN CN201811329426.6A patent/CN109114135B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990014629U (en) * | 1997-10-07 | 1999-05-06 | 정몽규 | Automotive brake system |
| JP2005343194A (en) * | 2004-05-31 | 2005-12-15 | Advics:Kk | Brake fluid pressure control device for vehicle and brake device for vehicle |
| CN105840694A (en) * | 2016-06-21 | 2016-08-10 | 重庆交通大学 | Electromagnet and friction composite disk type brake and brake method thereof |
| WO2018120786A1 (en) * | 2016-12-29 | 2018-07-05 | 合肥工业大学 | Drive-by-wire brake acting through motor in combination with magnetostriction |
| CN107448520A (en) * | 2017-09-26 | 2017-12-08 | 浙江师范大学 | A kind of electric mechanical brake-by-wire device |
| CN107588126A (en) * | 2017-09-26 | 2018-01-16 | 浙江师范大学 | A kind of electric mechanical brake-by-wire device |
| CN209012296U (en) * | 2018-11-09 | 2019-06-21 | 山东交通学院 | A kind of electromagnetic type line traffic control electronic brake |
Non-Patent Citations (1)
| Title |
|---|
| 轮胎式场桥小车制动器改造;赵巍;;港口装卸;20110630(第03期);全文 * |
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