CN203500336U - Piezoelectric brake actuating mechanism of vehicle electronic mechanical brake system - Google Patents
Piezoelectric brake actuating mechanism of vehicle electronic mechanical brake system Download PDFInfo
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- CN203500336U CN203500336U CN201320606196.XU CN201320606196U CN203500336U CN 203500336 U CN203500336 U CN 203500336U CN 201320606196 U CN201320606196 U CN 201320606196U CN 203500336 U CN203500336 U CN 203500336U
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Abstract
The utility model discloses a vehicle electronic machinery braking system piezoelectric type braking actuating mechanism, it includes the brake caliper body, casing, piston, brake piston subassembly, return spring, displacement amplification mechanism, piezoelectric element and clutch blocks, installs on the brake caliper body brake piston subassembly slidable, and piston and piezoelectric element are located the casing, one side and the piezoelectric element looks butt of piston, displacement amplification mechanism set up between the opposite side and the brake piston subassembly of piston, return spring's one end butt is on the brake caliper body, and the other end butt is on the brake piston subassembly. The displacement amplification mechanism comprises a displacement amplification lever, a salient point, a fixed hinge, a base and the like, and the small displacement of the piezoelectric element is amplified by utilizing the lever principle, so that the requirement of the friction block on displacement is met. The utility model discloses an adjust the electric field value that piezoelectric element applyed, realize the control to wheel braking force, can improve braking system's dynamic response performance and brake performance.
Description
Technical field
The utility model relates to a kind of vehicle electric mechanical braking system piezoelectricity type brake actuator, belongs to vehicle brake technology field.
Background technique
Braking system is one of important component part of automobile, is directly connected to comprehensive vehicle performance and the security of the lives and property, comprises Service Brake, Parking Brake and auxiliary brake.Service Brake is automobile primary break, generally adopts drum-type or disc type friction catch mode, and the kinetic energy of automobile, potential energy are converted into heat energy by friction, realizes the object of car deceleration or braking.Although conventional hydraulic formula, pneumatic-typed Service Brake can meet the requirements of existing brake legislation, exist speed of response slow, can not active adjustment, be not easy to the deficiencys such as integrated control, be not suitable for the demand for development of current automobile.
Electromechanical braking system (EMB) is a kind of in line control brake system, by brake petal module, electronic control module, brake actuator etc., formed, hydraulic pressure in traditional braking system, air pressure parts have been cancelled, take electric wire as information transmission media, electric driving element is brake actuator, control unit, according to brake pedal position sensor signal identification of driver braking intention, is controlled brake actuator action, realizes the control to wheel braking force.EMB system have do not brake medium, do not need vacuum booster unit, reaction fast, can active adjustment and be easy to the features such as integrated control, made up the deficiency in traditional braking system architecture principle, representing the development trend of running break.At present, the brake actuator of EMB system is generally comprised of drive motor, deceleration Zeng Niu mechanism, movement conversion mechanism etc., drive motor increases torque through deceleration Zeng Niu mechanism, by movement conversion mechanism, will rotatablely move and be converted to straight line motion again, promote brake pad and press to brake disc, realize wheel braking.Motor type brake actuator structure is comparatively complicated, and because drive motor works under the environment of " stall ", has affected the service behaviour of EMB system.
Summary of the invention
Technical problem to be solved in the utility model is the defect that overcomes prior art, a kind of vehicle electric mechanical braking system piezoelectricity type brake actuator is provided, it can improve dynamic response performance and the braking ability of braking system, realizes the control to wheel braking force.
The utility model solves the problems of the technologies described above the technological scheme of taking: a kind of vehicle electric mechanical braking system piezoelectricity type brake actuator, it comprises braking clamp body, housing, piston, brake piston assembly, return spring, displacement amplifying mechanism, piezoelectric element and lay respectively at the brake disc both sides of vehicle and coordinates the brake pad of braking with brake disc, brake piston assembly is slidably mounted on braking clamp body, piston and piezoelectric element are positioned at housing, one side and the piezoelectric element of piston connect, thereby the axial displacement that when applying external electric field and be created in mechanically deformation on piston axial direction and form the axial displacement that the party makes progress with convenient piezoelectric element between the opposite side that described displacement amplifying mechanism is arranged on piston and brake piston assembly, displacement amplifying mechanism is changed into brake piston assembly makes brake disc contact with brake pad to be coordinated to produce and brakes, one end of described return spring is connected on braking clamp body, the other end is connected on brake piston assembly and removes external electric field with convenient piezoelectric element, mechanically deformation on piston axial direction offers the axial reverse push power of brake piston assembly so that brake piston assembly return and brake disc and brake pad are separated so that brake disappearance while disappearing.
Further, described displacement amplifying mechanism comprises at least two-stage displacement amplifying unit, every grade of displacement amplifying unit comprises displacement amplification lever, fixed base and salient point, fixed base is fixedly connected in housing, the fixed end that lever is amplified in displacement is hinged on fixed base so that its free end rotates around hinged place, described salient point is arranged on corresponding displacement and amplifies on the free end of lever, and this salient point and the displacement of adjacent displacement amplifying unit are amplified the position between salient point and hinged place on lever and are contacted, salient point and brake piston assembly that the displacement of the displacement amplifying unit of described final stage is amplified on lever connect, the displacement that the opposite side of described piston is connected to first order displacement amplifying unit is amplified on lever on the position between salient point and hinged place.
Further, described displacement amplifying mechanism comprises intermediate piston, fulcrum cells and at least two-stage displacement amplifying unit, fulcrum cells comprises fulcrum fixed base and fulcrum displacement amplification lever, the middle part that lever is amplified in fulcrum displacement is hinged on fulcrum fixed base, every grade of displacement amplifying unit comprises displacement amplification lever, fixed base and salient point, fixed base is fixedly connected in housing, the fixed end that lever is amplified in displacement is hinged on fixed base so that its free end rotates around hinged place, described salient point is arranged on corresponding displacement and amplifies on the free end of lever, and this salient point and the displacement of adjacent displacement amplifying unit are amplified the position between salient point and hinged place on lever and are contacted, the salient point that the displacement of the displacement amplifying unit of described final stage is amplified on lever connects by intermediate piston and one end of fulcrum displacement amplification lever, the other end and brake piston assembly that lever is amplified in fulcrum displacement connect, the displacement that the opposite side of described piston is connected to first order displacement amplifying unit is amplified on lever on the position between salient point and hinged place.
Further, described brake piston assembly comprises brake piston and brake piston bar, one end of brake piston bar is flexibly connected mutually with displacement amplifying mechanism, and the other end and brake piston are fixedly connected, described return spring be sleeved on brake piston bar and with its butt.
Further, it is main by piezoceramics layer and be respectively formed at the positive electrode layer of piezoceramics layer both sides and the piezoelectric unit part that positive electrode layer forms that described piezoelectric element has many groups, and positive electrode layer and positive electrode layer are electrically connected successively.
Further, on described housing, be provided with attachment plug, described positive electrode layer is electrically connected successively afterwards and is connected with attachment plug with positive electrode layer.
Further, described housing is provided with an air-cooled or water-cooled power converter.
Further, described braking clamp body is floating caliper type disc, and described displacement amplifying unit is two.
Adopted after technique scheme, piezoelectric element of the present utility model applies electric field in piezoelectric constant polarised direction, at electric field action lower piezoelectric pottery, mechanically deformation can occur or produce mechanical stress; When external electric field removes, these distortion or stress also can disappear thereupon, and piezoelectric constant is directly proportional to the size of electric field by amount of deformation or stress value that electric field action produces.Magnitude of voltage or the power supply pulse duty factor of by adjusting, supplying with piezoelectric element, zoomed into the little displacement amount of piston by displacement amplifying mechanism the big displacement quantity of brake piston assembly, drives brake piston action, realizes the accurate control to wheel braking force.Vehicle electric mechanical braking system piezoelectricity type brake actuator based on inverse piezoelectric effect has high dynamic response performance, can increase frequency and control accuracy that retardation pressure regulates, improves dynamic response performance and the braking ability of EMB system.The utility model can be avoided motor type brake actuator " stall " phenomenon, have simple in structure, be convenient to install, high reliability.
Accompanying drawing explanation
Fig. 1 is the first embodiment's of vehicle electric mechanical braking system piezoelectricity type brake actuator of the present utility model structural representation;
Fig. 2 is the second embodiment's of vehicle electric mechanical braking system piezoelectricity type brake actuator of the present utility model structural representation.
Embodiment
For content of the present utility model is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below.
Embodiment one
As shown in Figure 1, a kind of vehicle electric mechanical braking system piezoelectricity type brake actuator, comprise braking clamp body 4, housing 17, piston 16, brake piston assembly 5, return spring 3, displacement amplifying mechanism, piezoelectric element 18 and lay respectively at brake disc 1 both sides of vehicle and coordinates the brake pad 2 of braking with brake disc 1, brake piston assembly 5 is slidably mounted on braking clamp body 4, piston 16 and piezoelectric element 18 are positioned at housing 17, one side and the piezoelectric element 18 of piston 16 connect, thereby the axial displacement that when applying external electric field and be created in mechanically deformation on piston 16 axial directions and form the axial displacement that the party makes progress with convenient piezoelectric element 18 between the opposite side that displacement amplifying mechanism is arranged on piston 16 and brake piston assembly 5, displacement amplifying mechanism is changed into brake piston assembly 5 makes brake disc 1 contact with brake pad 2 to be coordinated to produce and brakes, one end of return spring 3 is connected on braking clamp body 4, the other end is connected on brake piston assembly 5 and removes external electric field with convenient piezoelectric element 18, mechanically deformation on piston 16 axial directions offers the axial reverse push power of brake piston assembly 5 so that brake piston assembly 5 returns and brake disc 1 and brake pad 2 are separated so that brake disappearance while disappearing.
As shown in Figure 1, displacement amplifying mechanism comprises at least two-stage displacement amplifying unit, every grade of displacement amplifying unit comprises displacement amplification lever 15, fixed base 11 and salient point 6, fixed base 11 is fixedly connected in housing 17, the fixed end that lever 15 is amplified in displacement is hinged on fixed base 11 so that its free end rotates around hinged place by fixed hinge 10, salient point 6 is arranged on corresponding displacement and amplifies on the free end of lever 15, and this salient point 6 and the displacement of adjacent displacement amplifying unit are amplified the position between salient point 6 and hinged place on lever 15 and are contacted, the salient point 6 that the displacement of the displacement amplifying unit of final stage is amplified on lever 15 connects with brake piston assembly 5, the displacement that the opposite side of piston 16 is connected to first order displacement amplifying unit is amplified on lever 15 on the position between salient point 6 and hinged place.The displacement amplifying unit of Fig. 1 is two, but is not limited to this.
As shown in Figure 1, return spring 3 is cylindroid helicalcoil compression spring, is installed between brake piston assembly 5 and braking clamp body 4, original state bears certain compressive force, brake piston assembly 5 is depressed into left-most position, makes brake pad 2 separated with brake disc 1, on brake disc 1, there is no braking force.
It is main by piezoceramics layer and be respectively formed at the positive electrode layer of piezoceramics layer both sides and the piezoelectric unit part that positive electrode layer forms that piezoelectric element 18 has many groups, and positive electrode layer and positive electrode layer are electrically connected successively.On housing 17, be provided with attachment plug 19, positive electrode layer is electrically connected successively afterwards and is connected with attachment plug 19 with positive electrode layer.Piezoelectric element 18 is supplied with the voltage of 0 ~ 600 volt as required.It is the piezoelectric ceramic thin sheet of 80 microns that the piezoelectric element 18 of general 3 centimeter length can comprise 300 multi-layered thickness.The power supply voltage of piezoelectric element 18 is accessed by attachment plug 19, and DC low-voltage to the transformation of DC high voltage is completed by DC-DC booster converter.
When piezoelectric element 18 obtains electric generation mechanically deformation, output loads overcomes return spring 3 elastic force promotion pistons 16 and moves to the right, after by displacement amplifying mechanism, to piston, 16 displacements are amplified, by the displacement of the displacement amplifying unit of final stage, amplified that lever 15 promotes brake piston bars 20 and brake piston 5-1 moves to the right, brake pad 2 is contacted with brake disc 1, on brake disc 1, produce braking force.The braking force size producing changes and changes with the magnitude of voltage applying on piezoelectric element 18.When piezoelectric element 18 dead electricity, piezoelectric element 18 distortion disappear, under the effect of return spring 3, brake piston bar 20 and brake piston 5-1 move to the left, brake pad 2 is separated with brake disc 1, and the braking force on brake disc 1 disappears, and amplifies lever 15 simultaneously promote the mobile to the left return of piston 16 by the displacement of first order displacement amplifying unit, magnitude of voltage or power supply pulse duty factor by applying on successive adjusting piezoelectric element 18, can realize the accurate control to wheel braking force.
The all parts of this piezoelectricity type brake actuator can be made into an integral body, a piezoelectricity type brake actuator is installed on the appropriate location of each wheel brake, relatively independent between them, can give full play to the coefficient of attachment of each wheel, if and one of them brake actuator goes wrong, other several brake actuators still can normally be worked, and have improved braking ability and the Safety performance of vehicle.
Embodiment two
As shown in Figure 2, a kind of vehicle electric mechanical braking system piezoelectricity type brake actuator, comprise braking clamp body 4, housing 17, piston 16, brake piston assembly 5, return spring 3, displacement amplifying mechanism, piezoelectric element 18 and lay respectively at brake disc 1 both sides of vehicle and coordinates the brake pad 2 of braking with brake disc 1, brake piston assembly 5 is slidably mounted on braking clamp body 4, piston 16 and piezoelectric element 18 are positioned at housing 17, one side and the piezoelectric element 18 of piston 16 connect, thereby the axial displacement that when applying external electric field and be created in mechanically deformation on piston 16 axial directions and form the axial displacement that the party makes progress with convenient piezoelectric element 18 between the opposite side that described displacement amplifying mechanism is arranged on piston 16 and brake piston assembly 5, displacement amplifying mechanism is changed into brake piston assembly 5 makes brake disc 1 contact with brake pad 2 to be coordinated to produce and brakes, one end of return spring 3 is connected on braking clamp body 4, the other end is connected on brake piston assembly 5 and removes external electric field with convenient piezoelectric element 18, mechanically deformation on piston 16 axial directions offers the axial reverse push power of brake piston assembly 5 so that brake piston assembly 5 returns and brake disc 1 and brake pad 2 are separated so that brake disappearance while disappearing.
As shown in Figure 2, housing 13 is fixedly connected on the top of braking clamp body 4, and on housing 13 and braking clamp body 4, rear end cover 9 is installed, displacement amplifying mechanism comprises intermediate piston 12, fulcrum cells and at least two-stage displacement amplifying unit, fulcrum cells comprises fulcrum fixed base 8 and fulcrum displacement amplification lever 7, the middle part that lever 7 is amplified in fulcrum displacement is hinged on fulcrum fixed base 8 by a fixed hinge 10, fulcrum fixed base 8 is fixed on rear end cover 9, every grade of displacement amplifying unit comprises displacement amplification lever 15, fixed base 11 and salient point 6, fixed base 8 is fixedly connected in housing 17, the fixed end that lever 15 is amplified in displacement is hinged on fixed base 8 so that its free end rotates around hinged place by another fixed hinge 10, salient point 6 is arranged on corresponding displacement and amplifies on the free end of lever 15, and this salient point 6 and the displacement of adjacent displacement amplifying unit are amplified the position between salient point 6 and hinged place on lever and are contacted, the displacement of the displacement amplifying unit of final stage is amplified one end that the salient point 6 on lever 15 amplifies lever 7 by intermediate piston 12 and fulcrum displacement and is connected, the other end and brake piston assembly 5 that lever 7 is amplified in fulcrum displacement connect, the displacement that the opposite side of piston 16 is connected to first order displacement amplifying unit is amplified on lever 15 on the position between salient point 6 and hinged place.The displacement amplifying unit of Fig. 2 is two, but is not limited to this.
It is main by piezoceramics layer and be respectively formed at the positive electrode layer of piezoceramics layer both sides and the piezoelectric unit part that positive electrode layer forms that piezoelectric element 18 has many groups, and positive electrode layer and positive electrode layer are electrically connected successively.
On housing 17, be provided with attachment plug 19, positive electrode layer is electrically connected successively afterwards and is connected with attachment plug 19 with positive electrode layer.The power supply voltage of piezoelectric element 18 is accessed by attachment plug 19, and DC low-voltage to the transformation of DC high voltage is completed by DC-DC booster converter.
When piezoelectric element 18 obtains electric generation mechanically deformation, output loads overcomes return spring 3 elastic force promotion pistons 16 and moves to the left, after by displacement amplifying mechanism, to piston, 16 displacements are amplified, by fulcrum displacement, amplifying lever 7 promotion brake piston assemblies 5 moves to the right, brake pad 2 is contacted with brake disc 1, on brake disc 1, produce braking force.The braking force size producing changes and changes with the magnitude of voltage applying on piezoelectric element 18.When piezoelectric element 18 dead electricity, piezoelectric element 18 distortion disappear, under the effect of return spring 3, brake piston assembly 5 moves to the left, brake pad 2 is separated with brake disc 1, and the braking force on brake disc 1 disappears, and amplifies lever 15 simultaneously promote piston 16 mobile return to the right by the displacement of first order displacement amplifying unit, magnitude of voltage or power supply pulse duty factor by applying on successive adjusting piezoelectric element 18, can realize the accurate control to wheel braking force.
When piezoelectric element 18 obtains electric generation mechanically deformation, the displacement that the little displacement amount of piston 16 amplifies lever 15, second level displacement amplifying unit through the displacement of first order displacement amplifying unit is amplified after lever 15, intermediate piston 12 and fulcrum displacement amplification lever 7, be enlarged into the big displacement quantity of brake piston assembly 5, promote brake pad 2 and press to brake disc 1, realize wheel braking.When piezoelectric element 18 dead electricity, piezoelectric element 18 distortion disappear, under the effect of return spring 3, brake piston assembly 5 moves to the left, brake pad 2 is separated with brake disc 1, braking force on brake disc 1 disappears, and lever 15 is amplified in the displacement that brake piston 5 amplifies lever 15 and first order displacement amplifying unit through the displacement of fulcrum displacement amplification lever 7, intermediate piston 12, second level displacement amplifying unit simultaneously, promotes piston 16 mobile return to the right.
The all parts of this piezoelectricity type brake actuator is made into an integral body, this piezoelectricity type brake actuator is installed on the appropriate location of each wheel brake, relatively independent between them, can give full play to the coefficient of attachment of each wheel, if and one of them brake actuator goes wrong, other several brake actuators still can normally be worked, and have improved braking ability and the Safety performance of vehicle.
Above-described specific embodiment; technical problem, technological scheme and beneficial effect that the utility model is solved further describe; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. a vehicle electric mechanical braking system piezoelectricity type brake actuator, it is characterized in that: it comprises braking clamp body (4), housing (17), piston (16), brake piston assembly (5), return spring (3), displacement amplifying mechanism, piezoelectric element (18) and lay respectively at brake disc (1) both sides of vehicle and coordinate with brake disc (1) braking brake pad (2), brake piston assembly (5) is slidably mounted on braking clamp body (4), piston (16) and piezoelectric element (18) are positioned at housing (17), one side of piston (16) and piezoelectric element (18) connect, between the opposite side that described displacement amplifying mechanism is arranged on piston (16) and brake piston assembly (5), with convenient piezoelectric element (18), apply that external electric field is created in piston (16) thus the axial displacement that when mechanically deformation on axial direction forms the axial displacement that the party makes progress, displacement amplifying mechanism is changed into brake piston assembly (5) makes brake disc (1) contact with brake pad (2) to be coordinated to produce and brakes, one end of described return spring (3) is connected on braking clamp body (4), it is upper with convenient piezoelectric element (18) removal external electric field that the other end is connected to brake piston assembly (5), mechanically deformation on piston (16) axial direction offers the axial reverse push power of brake piston assembly (5) so that brake piston assembly (5) return and brake disc (1) and brake pad (2) are separated so that brake disappearance while disappearing.
2. vehicle electric mechanical braking system piezoelectricity type brake actuator according to claim 1, it is characterized in that: described displacement amplifying mechanism comprises at least two-stage displacement amplifying unit, every grade of displacement amplifying unit comprises displacement amplification lever (15), fixed base (11) and salient point (6), fixed base (11) is fixedly connected in housing (17), the fixed end that lever (15) is amplified in displacement is hinged on fixed base (11) above so that its free end rotates around hinged place, described salient point (6) is arranged on corresponding displacement and amplifies on the free end of lever (15), and this salient point (6) contacts with the position that the displacement of adjacent displacement amplifying unit is amplified between the upper salient point (6) of lever (15) and hinged place, the salient point (6) that the displacement of the displacement amplifying unit of described final stage is amplified on lever (15) connects with brake piston assembly (5), the opposite side of described piston (16) is connected to the displacement of first order displacement amplifying unit and amplifies on the position between the upper salient point (6) of lever (15) and hinged place.
3. vehicle electric mechanical braking system piezoelectricity type brake actuator according to claim 1, it is characterized in that: described displacement amplifying mechanism comprises intermediate piston (12), fulcrum cells and at least two-stage displacement amplifying unit, fulcrum cells comprises fulcrum fixed base (8) and fulcrum displacement amplification lever (7), the middle part that lever (7) is amplified in fulcrum displacement is hinged on fulcrum fixed base (8), every grade of displacement amplifying unit comprises displacement amplification lever (15), fixed base (11) and salient point (6), fixed base (8) is fixedly connected in housing (17), the fixed end that lever (15) is amplified in displacement is hinged on fixed base (8) above so that its free end rotates around hinged place, described salient point (6) is arranged on corresponding displacement and amplifies on the free end of lever (15), and this salient point (6) and the displacement of adjacent displacement amplifying unit are amplified the position between salient point (6) and hinged place on lever and are contacted, the salient point (6) that the displacement of the displacement amplifying unit of described final stage is amplified on lever (15) connects by intermediate piston (12) and one end of fulcrum displacement amplification lever (7), the other end and brake piston assembly (5) that lever (7) is amplified in fulcrum displacement connect, the opposite side of described piston (16) is connected to the displacement of first order displacement amplifying unit and amplifies on the position between the upper salient point (6) of lever (15) and hinged place.
4. vehicle electric mechanical braking system piezoelectricity type brake actuator according to claim 2, it is characterized in that: described brake piston assembly (5) comprises brake piston (5-1) and brake piston bar (20), one end of brake piston bar (20) is flexibly connected mutually with displacement amplifying mechanism, the other end and brake piston (5-1) are fixedly connected, described return spring (3) be sleeved on brake piston bar (20) upper and with its butt.
5. according to the vehicle electric mechanical braking system piezoelectricity type brake actuator described in any one in claim 1 to 4, it is characterized in that: it is main by piezoceramics layer and be respectively formed at the positive electrode layer of piezoceramics layer both sides and the piezoelectric unit part that positive electrode layer forms that described piezoelectric element (18) has many groups, and positive electrode layer and positive electrode layer are electrically connected successively.
6. vehicle electric mechanical braking system piezoelectricity type brake actuator according to claim 5, it is characterized in that: on described housing (17), be provided with attachment plug (19), described positive electrode layer is electrically connected successively afterwards and is connected with attachment plug (19) with positive electrode layer.
7. vehicle electric mechanical braking system piezoelectricity type brake actuator according to claim 5, is characterized in that: described housing (17) is provided with an air-cooled or water-cooled power converter.
8. according to the vehicle electric mechanical braking system piezoelectricity type brake actuator described in claim 2 or 3, it is characterized in that: described displacement amplifying unit is two.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320606196.XU CN203500336U (en) | 2013-09-29 | 2013-09-29 | Piezoelectric brake actuating mechanism of vehicle electronic mechanical brake system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320606196.XU CN203500336U (en) | 2013-09-29 | 2013-09-29 | Piezoelectric brake actuating mechanism of vehicle electronic mechanical brake system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486163A (en) * | 2013-09-29 | 2014-01-01 | 江苏理工学院 | Piezoelectric brake actuating mechanism of vehicle electronic mechanical brake system |
| CN104485839A (en) * | 2014-12-09 | 2015-04-01 | 武汉理工大学 | Piezoelectric type energy harvester |
| CN105822697A (en) * | 2016-05-26 | 2016-08-03 | 江苏理工学院 | Magnetic disk brake |
| CN107554503A (en) * | 2017-07-28 | 2018-01-09 | 江苏理工学院 | Driving type piezoelectric actuator brake |
| CN112334695A (en) * | 2018-07-31 | 2021-02-05 | 株式会社富士金 | Actuator, valve, and fluid control device |
-
2013
- 2013-09-29 CN CN201320606196.XU patent/CN203500336U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486163A (en) * | 2013-09-29 | 2014-01-01 | 江苏理工学院 | Piezoelectric brake actuating mechanism of vehicle electronic mechanical brake system |
| CN103486163B (en) * | 2013-09-29 | 2016-06-08 | 江苏理工学院 | Piezoelectric brake actuating mechanism of vehicle electronic mechanical brake system |
| CN104485839A (en) * | 2014-12-09 | 2015-04-01 | 武汉理工大学 | Piezoelectric type energy harvester |
| CN105822697A (en) * | 2016-05-26 | 2016-08-03 | 江苏理工学院 | Magnetic disk brake |
| CN107554503A (en) * | 2017-07-28 | 2018-01-09 | 江苏理工学院 | Driving type piezoelectric actuator brake |
| CN112334695A (en) * | 2018-07-31 | 2021-02-05 | 株式会社富士金 | Actuator, valve, and fluid control device |
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