CN109099080B - Wire control electronic brake - Google Patents
Wire control electronic brake Download PDFInfo
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- CN109099080B CN109099080B CN201811329276.9A CN201811329276A CN109099080B CN 109099080 B CN109099080 B CN 109099080B CN 201811329276 A CN201811329276 A CN 201811329276A CN 109099080 B CN109099080 B CN 109099080B
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- brake
- disc
- electromagnetic
- caliper
- piston
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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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- 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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- 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
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
- F16D65/123—Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting
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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
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Braking Arrangements (AREA)
- Regulating Braking Force (AREA)
Abstract
一种线控电子制动器，包括右卡钳件、左卡钳件、右制动管、左制动管、汇总管、制动盘、电磁主动盘、电磁从动盘、柱塞泵组、右活塞组、左活塞组、储油室、电磁阀、控制器、制动踏板传感器；电磁主动盘与制动盘的帽端花键连接，电磁从动盘通过轴承配合安装在制动盘的帽端上；电磁从动盘的斜面与柱塞泵组的活塞杆接触，由斜面驱动活塞杆运动，进而产生高压制动液；制动液推动右活塞组、左活塞组进而推动摩擦片压紧制动盘产生制动。本发明充分利用车辆动能，通过电磁盘取力的方式来驱动柱塞泵组产生制动压力，进而推动摩擦片压紧制动盘进行制动，能够有效节省成本、缩小安装空间、快速响应制动指令、缩短制动距离和提高制动安全性。
A wire-controlled electronic brake comprises a right caliper, a left caliper, a right brake pipe, a left brake pipe, a collecting pipe, a brake disc, an electromagnetic active disc, an electromagnetic driven disc, a plunger pump group, a right piston group, a left piston group, an oil storage chamber, a solenoid valve, a controller, and a brake pedal sensor; the electromagnetic active disc is splined with the cap end of the brake disc, and the electromagnetic driven disc is mounted on the cap end of the brake disc through a bearing; the inclined surface of the electromagnetic driven disc contacts the piston rod of the plunger pump group, and the inclined surface drives the piston rod to move, thereby generating high-pressure brake fluid; the brake fluid pushes the right piston group and the left piston group, thereby pushing the friction plate to press the brake disc to generate braking. The present invention makes full use of the kinetic energy of the vehicle, drives the plunger pump group to generate braking pressure by taking power from the electromagnetic magnetic disc, and thereby pushes the friction plate to press the brake disc to brake, which can effectively save costs, reduce installation space, quickly respond to braking commands, shorten braking distances, and improve braking safety.
Description
Technical Field
The invention relates to an automobile brake, in particular to a 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. Because the battery capacity cannot be improved simply by increasing the number of batteries, the problem of improving the driving range of the new energy vehicle is often solved by sacrificing the riding comfort of a driver, such as removing an air conditioner. The method is an effective technical means for improving the driving range of the new energy vehicle by reducing the electric energy consumption of accessories.
The vehicle braking system mainly adopts a hydraulic braking mode. The conventional fuel vehicle braking system assists braking and boosting by taking vacuum at the throat of the engine, so that the braking force intensity of a driver is reduced; the new energy automobile realizes auxiliary braking reinforcement by additionally adding a vacuum pump, so that the extra 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.
The use of brake-by-wire systems instead of conventional hydraulic brake systems is a necessary trend, with the advantages of brake-by-wire systems over conventional hydraulic brake 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.
At present, a motor is mainly used as a braking power source, torque is increased through a speed reducing mechanism to carry out power transmission, and the braking motor is always in a locked-rotor state when the brake system is braked, so that the system has extremely high requirements on the performance of the motor, and further, the cost 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.
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 wire-control electronic brake which can fully utilize the kinetic energy of a vehicle, and drive the plunger pump set to generate braking pressure in a way of taking force by the electromagnetic disc, so as to push the friction plate to press the braking disc for braking, thereby effectively saving cost, reducing installation space, rapidly responding to braking instructions, shortening braking distance and improving braking safety.
The invention is realized by the following technical measures:
A wire control electronic brake comprises a right caliper part, a left caliper part, a right brake pipe, a left brake pipe, a collecting pipe, a brake disc, an electromagnetic driving disc, an electromagnetic driven disc, a plunger pump set, a right piston set, a left piston set, an oil storage chamber, an electromagnetic valve, a controller and a brake pedal sensor; the right caliper part and the left caliper part are fixed together through bolts, the right brake pipe and the left brake pipe are respectively connected with the brake piston cavity oil inlets of the right caliper part and the left caliper part, the other ends of the right brake pipe and the left brake pipe are connected with a collecting pipe through tee parts, and the other ends of the collecting pipe are respectively connected with the outlet ends of the plunger pump sets in a bifurcation pipeline mode; an electromagnetic valve is connected in series in a branch of the branch pipeline and a connecting pipeline of the oil storage chamber; the brake disc is arranged in the middle cavity of the right caliper assembly and the left caliper assembly; a right piston group is arranged in the piston cavity of the right caliper; the left piston group is arranged in the piston cavity of the left caliper, the opening ends of the right piston group and the left piston group are respectively provided with friction plates, and the friction plates are respectively arranged on the right side and the left side of the brake disc and are respectively limited by the right caliper and the left caliper; when the vehicle brakes, the brake fluid pushes the right piston group and the left piston group to respectively close to the brake disc, so that the friction plate is pushed to press the brake disc to generate braking;
the electromagnetic driving disc is in spline connection with the cap end of the brake disc and can move along a spline notch on the brake disc; the electromagnetic driven disc is mounted on the cap end of the brake disc in a matched manner through a bearing, and the electromagnetic driven disc is limited to move axially along the cap end of the brake disc through a retainer ring;
the non-friction surface of the electromagnetic driven disc is an inclined surface, the inclined surface is in contact with a piston rod of the plunger pump set, and the piston rod is driven to move by the inclined surface, so that high-pressure brake fluid is generated; the piston rod is provided with a spring for resetting the piston rod;
The plunger pump set is fixedly arranged on a fixed disc on the left caliper along the circumference; the inlet end of each plunger pump in the plunger pump set is connected with an oil storage chamber pipeline, and the outlet end of each plunger pump is connected with a branch pipeline of a collecting pipe; the outlet and the inlet of each plunger pump are provided with one-way valves for ensuring one-way delivery of brake fluid along an oil path;
The brake pedal sensor, the electromagnetic driving disc, the electromagnetic driven disc and the electromagnetic valve are all electrically connected with the controller; the brake pedal sensor transmits the collected brake pedal signals to the controller, and the controller controls the electromagnetic driving disc, the electromagnetic driven disc and the electromagnetic valve to act according to a control strategy; during braking, the controller controls the electromagnetic driving disc and the electromagnetic driven disc to be attracted, the torque transmitted by attraction is controlled by control current, the electromagnetic valve is closed at the moment, braking oil is prevented from returning to the oil storage chamber, and if the braking pressure is overlarge, the controller controls the electromagnetic valve to be opened for pressure relief; when the braking is finished, the controller controls the electromagnetic driving disc and the electromagnetic driven disc to be separated, the electromagnetic valve is opened, and the braking liquid returns to the oil storage chamber;
The number of the brake piston cavities of the right caliper and the left caliper is greater than or equal to two, and the number of the pistons of the right piston group and the left piston group is equal to the number of the brake piston cavities of the right caliper and the left caliper;
friction plates are arranged on the electromagnetic driving disc and the electromagnetic driven disc;
the cap end of the brake disc is provided with a spline groove and an annular positioning groove, the spline groove is used for matching with a spline of the electromagnetic driving disc, and the annular positioning groove is used for installing a check ring to limit the electromagnetic driven disc to axially move along the cap end of the brake disc;
spline teeth are machined on the electromagnetic driving disc and are used for matching with spline grooves machined at the cap end of the brake disc;
The electromagnetic driving disc is provided with an electromagnetic coil;
the electromagnetic driven disc is provided with an electromagnetic coil.
The beneficial effects of the invention are as follows:
A drive-by-wire electronic brake can fully utilize vehicle kinetic energy, and drive a plunger pump set to generate braking pressure in a mode of taking force by an electromagnetic disc, so that a friction plate is pushed to press a brake disc for braking, and therefore cost can be effectively saved, installation space can be reduced, braking instructions can be responded quickly, braking distance can be shortened, and braking safety can be improved. Compared with the prior art, the method has the following beneficial effects:
1. The vehicle kinetic energy is fully utilized, the plunger pump set is driven to generate braking pressure in a mode of taking force by the electromagnetic disc, so that the friction plate is pushed to press the brake disc for braking, and the technical problem that the existing hydraulic braking system relies 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 brake pipeline is shortened, the response time is reduced, and the problem of braking hysteresis caused by the length of the brake pipeline of the existing hydraulic brake system is solved;
3. the energy consumption problem of accessories of the new energy vehicle is effectively solved, and the driving range 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 front view of the present invention.
Fig. 4 is a left side view of the present invention.
Fig. 5 is a top view of the present invention.
FIG. 6 is a schematic view of a part of the structure of the present invention.
FIG. 7 is a schematic view of the left caliper of the present invention.
FIG. 8 is a schematic view of a portion of the structure of the present invention.
Fig. 9 is a schematic view of the structure of the electromagnetic driven plate of the present invention.
Fig. 10 is a schematic view of the structure of the electromagnetic driven plate of the present invention.
Fig. 11 is a schematic view of the structure of the brake disc of the present invention.
FIG. 12 is a schematic view of the electromagnetic active disc structure of the present invention.
Fig. 13 is a schematic diagram of the hydraulic control principle of the present invention.
Fig. 14 is a schematic diagram of a control system according to the present invention.
In the figure, the brake pedal sensor comprises a 1-right caliper, a 2-left caliper, a 201-fixed disc, a 3-right brake pipe, a 4-left brake pipe, a 5-collecting pipe, a 6-brake disc, a 7-electromagnetic driving disc, an 8-electromagnetic driven disc, a 9-plunger pump set, a 901-piston rod, a 10-right piston set, a 11-left piston set, a 12-oil storage chamber, a 13-electromagnetic valve, a 14-controller and a 15-brake pedal sensor.
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.
A wire control electronic brake comprises a right caliper part 1, a left caliper part 2, a right brake pipe 3, a left brake pipe 4, a collecting pipe 5, a brake disc 6, an electromagnetic driving disc 7, an electromagnetic driven disc 8, a plunger pump set 9, a right piston set 10, a left piston set 11, an oil storage chamber 12, an electromagnetic valve 13, a controller 14 and a brake pedal sensor 15; the right caliper part 1 and the left caliper part 2 are fixed together through bolts, the right brake pipe 3 and the left brake pipe 4 are respectively connected with the brake piston cavity oil inlets of the right caliper part 1 and the left caliper part 2, the other ends of the right brake pipe 3 and the left brake pipe 4 are connected with a collecting pipe 5 through tee parts, and the other ends of the collecting pipe 5 are respectively connected with the outlet ends of plunger pump sets 9 in a bifurcation pipeline mode; a branch of the branch pipeline is connected with a connecting pipeline of the oil storage chamber 12 in series with an electromagnetic valve 13; the brake disc 6 is arranged in the middle cavity of the assembly body of the right clamping piece 1 and the left clamping piece 2; a right piston group 10 is arranged in the piston cavity of the right clamping device 1; the left piston group 11 is arranged in the piston cavity of the left caliper 2, the right piston group 10 and the opening ends of the left piston group 11 are respectively provided with friction plates, and the friction plates are respectively arranged on the right side and the left side of the brake disc 6 and are respectively limited by the right caliper 1 and the left caliper 2; when the vehicle brakes, the brake fluid pushes the right piston group 10 and the left piston group 11 to respectively close to the brake disc 6, so that friction plates are pushed to press the brake disc 6 to generate braking;
The electromagnetic driving disc 7 is in spline connection with the cap end of the brake disc 6 and can move along a spline notch on the brake disc 6; the electromagnetic driven disc 8 is mounted on the cap end of the brake disc 6 in a matched manner through a bearing, and the axial movement of the electromagnetic driven disc 8 along the cap end of the brake disc 6 is limited through a retainer ring;
The non-friction surface of the electromagnetic driven disc 8 is an inclined surface, the inclined surface is in contact with a piston rod 901 of the plunger pump set 9, and the inclined surface drives the piston rod 901 to move, so that high-pressure brake fluid is generated; the piston rod 901 is provided with a spring for resetting the piston rod 901;
The plunger pump set 9 is fixedly arranged on a fixed disc 201 on the left clamping device 2 along the circumference; the inlet end of each plunger pump in the plunger pump set 9 is connected with an oil storage chamber 12 through a pipeline, and the outlet end of each plunger pump is connected with a branch pipeline of the collecting pipe 5; the outlet and the inlet of each plunger pump are provided with one-way valves for ensuring one-way delivery of brake fluid along an oil path;
The brake pedal sensor 15, the electromagnetic driving disc 7, the electromagnetic driven disc 8 and the electromagnetic valve 13 are electrically connected with the controller 14; the brake pedal sensor 15 transmits the collected brake pedal signals to the controller 14, and the controller 14 controls the electromagnetic driving disc 7, the electromagnetic driven disc 8 and the electromagnetic valve 13 to act according to a control strategy; during braking, the controller 14 controls the electromagnetic driving disc 7 and the electromagnetic driven disc 8 to suck, the torque transmitted by sucking is controlled by control current, the electromagnetic valve 13 is closed at the moment, braking oil is prevented from returning to the oil storage chamber 12, and if the braking pressure is overlarge, the controller 14 controls the electromagnetic valve 13 to open for pressure relief; when the braking is finished, the controller 14 controls the electromagnetic driving disc 7 and the electromagnetic driven disc 8 to be separated, the electromagnetic valve 13 is opened, and the braking liquid returns to the oil storage chamber 12;
The number of the brake piston cavities of the right caliper part 1 and the left caliper part 2 is greater than or equal to two, and the number of the pistons of the right piston group 10 and the left piston group 11 is equal to the number of the brake piston cavities of the right caliper part 1 and the left caliper part 2;
friction plates 801 are arranged on the electromagnetic driving disc 7 and the electromagnetic driven disc 8;
the cap end of the brake disc 6 is provided with a spline groove and an annular positioning groove, the spline groove is used for matching with a spline of the electromagnetic driving disc 7, and the annular positioning groove is used for installing a retainer ring to limit the axial movement of the electromagnetic driven disc 8 along the cap end of the brake disc 6;
spline teeth are machined on the electromagnetic driving disc 7 and are used for matching with spline grooves machined at the cap end of the brake disc 6;
The electromagnetic driving disc 7 is provided with an electromagnetic coil;
the electromagnetic driven disc 8 is provided with an electromagnetic coil.
When the vehicle brakes, the brake pedal sensor 15 transmits the collected brake pedal signals to the controller 14, and the controller 14 controls the electromagnetic driving disc 7, the electromagnetic driven disc 8 and the electromagnetic valve 13 to act according to a control strategy; during braking, the controller 14 controls the electromagnetic driving disc 7 and the electromagnetic driven disc 8 to be attracted, the magnitude of torque transmitted by attraction is controlled by control current, and because the electromagnetic driven disc 8 is provided with an inclined plane, in the rotating process, the piston rod 901 is driven to move, so that high-pressure brake fluid generated by the plunger pump group 9 flows into the collecting pipe 5, and then the high-pressure brake fluid respectively enters the brake piston cavity oil inlets of the right caliper part 1 and the left caliper part 2 through the right brake pipe 3 and the left brake pipe 4 to push the right piston group 10 and the left piston group 11 to be close to the brake disc 6 respectively, and further push the friction plate to press the brake disc 6 to generate braking; at this time, the electromagnetic valve 13 is closed to prevent brake oil from returning to the oil storage chamber 12, and if the brake pressure is too high, the controller 14 controls the electromagnetic valve 13 to be opened to release pressure;
When the braking is finished, the controller 14 controls the electromagnetic driving disc 7 and the electromagnetic driven disc 8 to be separated, the electromagnetic valve 13 is opened, the braking liquid returns to the oil storage chamber 12, and all the components are reset.
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 (7)
1. A wire-controlled electronic brake comprises a right caliper (1), a left caliper (2), a right brake pipe (3), a left brake pipe (4), a collecting pipe (5), a brake disc (6), an electromagnetic driving disc (7), an electromagnetic driven disc (8), a plunger pump set (9), a right piston set (10), a left piston set (11), an oil storage chamber (12), an electromagnetic valve (13), a controller (14) and a brake pedal sensor (15); the method is characterized in that: the right caliper (1) and the left caliper (2) are fixed together through bolts, the right brake pipe (3) and the left brake pipe (4) are respectively connected with the brake piston cavity oil inlets of the right caliper (1) and the left caliper (2), the other ends of the right brake pipe (3) and the left brake pipe (4) are connected with a collecting pipe (5) through tee pieces, and the other ends of the collecting pipe (5) are respectively connected with the outlet ends of plunger pump sets (9) in a bifurcation pipeline mode; a branch of the branch pipeline is connected with a connecting pipeline of the oil storage chamber (12) in series with an electromagnetic valve (13); the brake disc (6) is arranged in the middle cavity of the assembly body of the right caliper (1) and the left caliper (2); a right piston group (10) is arranged in the piston cavity of the right clamping piece (1); the left piston group (11) is arranged in the piston cavity of the left caliper (2), the right piston group (10) and the opening end of the left piston group (11) are respectively provided with friction plates, and the friction plates are respectively arranged on the right side and the left side of the brake disc (6) and are respectively limited by the right caliper (1) and the left caliper (2); when the vehicle brakes, brake fluid pushes the right piston group (10) and the left piston group (11) to respectively close to the brake disc (6), so as to push the friction plate to press the brake disc (6) to brake;
The electromagnetic driving disc (7) is in spline connection with the cap end of the brake disc (6) and can move along a spline notch on the brake disc (6); the electromagnetic driven disc (8) is mounted on the cap end of the brake disc (6) in a matched manner through a bearing, and the axial movement of the electromagnetic driven disc (8) along the cap end of the brake disc (6) is limited through a retainer ring;
the non-friction surface of the electromagnetic driven disc (8) is an inclined surface, the inclined surface is in contact with a piston rod (901) of the plunger pump set (9), and the inclined surface drives the piston rod (901) to move, so that high-pressure hydraulic fluid is generated; the piston rod (901) is provided with a spring for resetting the piston rod (901);
The plunger pump set (9) is fixedly arranged on a fixed disc (201) on the left clamping device (2) along the circumference; the inlet end of each plunger pump in the plunger pump set (9) is connected with an oil storage chamber (12) through a pipeline, and the outlet end of each plunger pump is connected with a branch pipeline of the collecting pipe (5); the outlet and the inlet of each plunger pump are provided with one-way valves for ensuring one-way delivery of brake fluid along an oil path;
The brake pedal sensor (15), the electromagnetic driving disc (7), the electromagnetic driven disc (8) and the electromagnetic valve (13) are electrically connected with the controller (14); the brake pedal sensor (15) transmits the collected brake pedal signals to the controller (14), and the controller (14) controls the electromagnetic driving disc (7), the electromagnetic driven disc (8) and the electromagnetic valve (13) to act according to a control strategy; during braking, the controller (14) controls the electromagnetic driving disc (7) and the electromagnetic driven disc (8) to be attracted, the magnitude of torque transmitted by attraction is controlled by control current, the electromagnetic valve (13) is closed at the moment, braking oil is prevented from returning to the oil storage chamber (12), and if the braking pressure is overlarge, the controller (14) controls the electromagnetic valve (13) to be opened for pressure relief; when braking is finished, the controller (14) controls the electromagnetic driving disc (7) and the electromagnetic driven disc (8) to be separated, the electromagnetic valve (13) is opened, and brake fluid returns to the oil storage chamber (12).
2. A brake-by-wire as defined in claim 1, wherein: the number of the brake piston cavities of the right caliper (1) and the left caliper (2) is greater than or equal to two, and the number of the pistons of the right piston group (10) and the left piston group (11) is equal to the number of the brake piston cavities of the right caliper (1) and the left caliper (2).
3. A brake-by-wire as defined in claim 1, wherein: friction plates (801) are arranged on the electromagnetic driving disc (7) and the electromagnetic driven disc (8).
4. A brake-by-wire as defined in claim 1, wherein: the cap end of the brake disc (6) is provided with a spline groove and an annular positioning groove, the spline groove is used for being matched with a spline of the electromagnetic driving disc (7), the annular positioning groove is used for installing a check ring and used for limiting the electromagnetic driven disc (8) to axially move along the cap end of the brake disc (6).
5. A brake-by-wire as defined in claim 1, wherein: spline teeth are machined on the electromagnetic driving disc (7) and are used for matching with spline grooves machined at the cap end of the brake disc (6).
6. A brake-by-wire as defined in claim 1, wherein: the electromagnetic driving disc (7) is provided with an electromagnetic coil.
7. A brake-by-wire as defined in claim 1, wherein: the electromagnetic driven disc (8) is provided with an electromagnetic coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811329276.9A CN109099080B (en) | 2018-11-09 | 2018-11-09 | Wire control electronic brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811329276.9A CN109099080B (en) | 2018-11-09 | 2018-11-09 | Wire control electronic brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109099080A CN109099080A (en) | 2018-12-28 |
| CN109099080B true CN109099080B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811329276.9A Active CN109099080B (en) | 2018-11-09 | 2018-11-09 | Wire control electronic brake |
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| CN (1) | CN109099080B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727951B (en) * | 2021-01-29 | 2022-03-08 | 山东交通学院 | Brake with auxiliary braking function |
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| WO2015041141A1 (en) * | 2013-09-17 | 2015-03-26 | 日立オートモティブシステムズ株式会社 | Brake control device and brake control method |
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| CN106594115A (en) * | 2016-12-29 | 2017-04-26 | 合肥工业大学 | Driven-by-wire brake acting through motor in combination with magnetostriction |
| CN209012295U (en) * | 2018-11-09 | 2019-06-21 | 山东交通学院 | A wire-controlled electronic brake |
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| CN106594115A (en) * | 2016-12-29 | 2017-04-26 | 合肥工业大学 | Driven-by-wire brake acting through motor in combination with magnetostriction |
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| CN109099080A (en) | 2018-12-28 |
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