CN107554503A - Driving type piezoelectric actuator brake - Google Patents
Driving type piezoelectric actuator brake Download PDFInfo
- Publication number
- CN107554503A CN107554503A CN201710630097.8A CN201710630097A CN107554503A CN 107554503 A CN107554503 A CN 107554503A CN 201710630097 A CN201710630097 A CN 201710630097A CN 107554503 A CN107554503 A CN 107554503A
- Authority
- CN
- China
- Prior art keywords
- brake
- friction plate
- control unit
- wheel
- piezoelectric actuator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The present invention provides a kind of driving type piezoelectric actuator brake, it include terminal positive, terminal negative, piezoelectric element, the first end face on the outside of piezoelectric element, the second end face on the inside of piezoelectric element, displacement amplifying mechanism, inboard brake friction plate, external cheek brake friction plate, for adjusting the gap adjustment bolt in gap and float type brake caliper housing between inboard brake friction plate and external cheek brake friction plate.Piezoelectric element includes the piezoelectricity positive electrode layer being connected with terminal positive being arranged alternately and the piezoelectricity positive electrode layer being connected with terminal negative.Piezoelectric element displacement deformation is so as to reducing the gap between inboard brake friction plate and external cheek brake friction plate and amplify the displacement deformation of piezoelectric element by displacement amplifying mechanism after energization.It can be realized is adjusted to automobile brake, and improves the braking response time, ensures vehicle safety, while can adjust the gap between inboard brake friction plate and external cheek brake friction plate.
Description
Technical field
The present invention relates to a kind of driving type piezoelectric actuator brake, belong to technical field of vehicle.
Background technology
At present, the brakes on automobile mainly uses hydraulic braking, and coordinates ABS or ESP to play braking anti-lock
Ensure intact stability during with braking.Brakes mainly by brake pedal, brake switch, master cylinder, vacuum booster,
ABS/ESP control units, brake, wheel speed sensors, fluid pressure line etc. form.Its advantage is technology maturation, dependable performance, general
And rate is high.But it is to influence braking effect after sealing ring sealing effectiveness is bad in parts because using hydraulic system；Separately
When external brake hard ABS/ESP works, the response time of its electric-liquid control is particularly important.
The content of the invention
It is an object of the invention to provide a kind of driving type piezoelectric actuator brake, and it can be realized is adjusted to automobile brake, and
The braking response time is improved, ensures vehicle safety, while inboard brake friction plate and external cheek brake can be adjusted
Gap between friction plate.
According to an aspect of the present invention, there is provided a kind of driving type piezoelectric actuator brake, it includes terminal positive, binding post
Negative pole, piezoelectric element, the first end face on the outside of piezoelectric element, the second end face on the inside of piezoelectric element, displacement equations
Mechanism, inboard brake friction plate, external cheek brake friction plate, rub for adjusting inboard brake friction plate and external cheek brake
The gap adjustment bolt in gap and float type brake caliper housing between pad, the piezoelectric element is including being arranged alternately with connecing
Piezoelectricity positive electrode layer that terminal positive pole is connected and the piezoelectricity positive electrode layer being connected with terminal negative, piezoelectric element after energization
Displacement deformation is so as to reducing the gap between inboard brake friction plate and external cheek brake friction plate and by displacement equations machine
Structure amplifies the displacement deformation of piezoelectric element.
Preferably, the displacement amplifying mechanism includes the first displacement equations lever and second displacement amplification lever.
Preferably, the terminal positive and terminal negative are placed in float type brake caliper housing.
Preferably, the gap adjustment bolt is adjusted with float type brake caliper housing to be threadedly coupled by running clearance
Primary clearance between bolt and then change inboard brake friction plate and external cheek brake friction plate.
Preferably, it also includes vehicle speed sensor, brake-pedal-travel sensor and brake system control unit, works as speed
When the speed that sensor collects is operated less than preset value and brake pedal, brake system control unit presses brake-pedal travel
Sensor collection brake-pedal travel as modulation control voltage value signal, and by vehicle speed sensor feedback signal to modulate
Magnitude of voltage is modified, and reaches closed-loop control.
Preferably, it also includes vehicle speed sensor, brake-pedal-travel sensor, wheel speed sensors and brakes control
Unit, brake system control unit are believed by the brake-pedal travel modulation control magnitude of voltage of brake-pedal-travel sensor collection
Number, if recognized when being urgent brake pedal situation, brake system control unit then modulates relevant voltage value signal, and
In order to prevent wheel lock up situation from occurring, the voltage value signal of the modulation can diminish in wheel lock up, and return to immediately
Initial value, wheel lock up situation is not just considered when speed is less than preset value, wheel condition is gathered by wheel speed sensors.
Preferably, its also include vehicle speed sensor, brake-pedal-travel sensor, wheel speed sensors, steering angle sensor,
Beat rate sensor and brake system control unit, when driver's brake pedal and trigger brake switch close and speed pass
When sensor collects speed and is higher than preset value, brake system control unit analysis vehicle speed sensor, steering angle sensor and beat
Rate sensor signal value, when such as judging that wheel is in oversteering state, then control system control unit is immediately to vehicle outside
Front-wheel applies modulation voltage value, and oversteering operating mode is made up to reach；When such as judging that wheel is in understeer state, then control
System control unit applies modulation voltage value to vehicle interior side trailing wheel immediately, to reach steering situation of covering the shortage.
Preferably, it also includes Engine ECU, speed changer ECU and by control unit of engine and Engine ECU, change
The CAN-BUS buses of fast device ECU communications.
Preferably, it also includes instrument and the CAN-BUS buses by brake system control unit and meter communication.
Driving type piezoelectric actuator brake provided by the invention, it can be realized is adjusted to automobile brake, and is improved braking and rung
Between seasonable, ensure vehicle safety, while can adjust between inboard brake friction plate and external cheek brake friction plate
Gap so that provide the braking response time.
Brief description of the drawings
Fig. 1 is the sectional view of the driving type piezoelectric actuator brake of the present invention.
Fig. 2 is the block diagram of the driving type piezoelectric actuator brake of the present invention.
Embodiment
Embodiments of the invention are described with detailed reference to accompanying drawing now.
As shown in fig.1, the present invention provides a kind of driving type piezoelectric actuator brake, it includes terminal positive 1, binding post is born
Pole 3, piezoelectric element 5, the first end face 4 positioned at the outside of piezoelectric element 5, the second end face 8 positioned at the inner side of piezoelectric element 5, displacement
Enlarger, inboard brake friction plate 10, external cheek brake friction plate 12, for adjusting inboard brake friction plate 10 and outer
The gap adjustment bolt 2 and float type brake caliper housing 13 in gap between side brake friction plate 12.Piezoelectric element 5 includes handing over
The piezoelectricity positive electrode layer 6 being connected with terminal positive 1 and the piezoelectricity positive electrode layer being connected with terminal negative 3 for setting
7, the displacement deformation of piezoelectric element 5 is so as to reducing between inboard brake friction plate 10 and external cheek brake friction plate 12 after energization
Gap and the displacement deformation for amplifying piezoelectric element 5 by displacement amplifying mechanism.The present invention is by setting piezoelectric element 5, logical
After electricity, piezoelectric element 5 is to inboard brake friction plate 10 and the Direction distortion of external cheek brake friction plate 12.Pass through displacement equations machine
Structure, it is exaggerated above-mentioned deflection.By the structure, can be rapidly performed by braking.By setting gap adjustment bolt 2, to change
Become the braking quality of friction plate.
In the present embodiment, displacement amplifying mechanism includes the first displacement equations lever 9 and second displacement amplification lever 15.
In other embodiments, it can also be multistage enlarger that displacement amplifying mechanism, which may also be only one-level enlarger,.
Terminal positive 1 and terminal negative 3 are placed in float type brake caliper housing 13.Pass through the setting, it is possible to reduce
Space shared by driving type piezoelectric actuator brake.
Gap adjustment bolt 2 and float type brake caliper housing 13 to be threadedly coupled, by running clearance regulating bolt 2 and then
Change the primary clearance between inboard brake friction plate 10 and external cheek brake friction plate 12.Rubbed by reducing inboard brake
Primary clearance between pad 10 and external cheek brake friction plate 12, compared to larger primary clearance, it can use less
Electric current can reach preferably braking effect.
With further reference to shown in Fig. 2, driving type piezoelectric actuator brake also includes vehicle speed sensor, brake-pedal-travel sensor
And brake system control unit.When the speed that vehicle speed sensor collects is less than preset value and brake pedal is operated, braking
The brake-pedal travel that system control unit is gathered by brake-pedal-travel sensor leads to as modulation control voltage value signal
Cross vehicle speed sensor feedback signal to be modified modulation magnitude of voltage, reach closed-loop control.
In another embodiment, driving type piezoelectric actuator brake includes vehicle speed sensor, brake-pedal-travel sensor, wheel
Fast sensor and brake system control unit.Brake system control unit presses the brake pedal of brake-pedal-travel sensor collection
Stroke modulation control voltage value signal, if recognized when being urgent brake pedal situation, brake system control unit is then
Relevant voltage value signal is modulated, and in order to prevent wheel lock up situation from occurring, the voltage value signal of the modulation can be embraced in wheel
Diminish when dead, and return to initial value immediately, just do not consider wheel lock up situation, wheel condition when speed is less than preset value
Gathered by wheel speed sensors.
In another embodiment, driving type piezoelectric actuator brake includes vehicle speed sensor, brake-pedal-travel sensor, wheel
Fast sensor, steering angle sensor, beat rate sensor and brake system control unit.When driver's brake pedal and touch
When hair brake switch closes and vehicle speed sensor collects speed and be higher than preset value, brake system control unit analysis speed senses
Device, steering angle sensor and beat rate sensor signal value, when such as judging that wheel is in oversteering state, then control system control
Unit processed applies modulation voltage value to vehicle outside front-wheel immediately, and oversteering operating mode is made up to reach；Such as judge that wheel is in
During understeer state, then control system control unit applies modulation voltage value to vehicle interior side trailing wheel immediately, is made up with reaching
Understeer operating mode.
Preferably, above-mentioned preset value is 40km/h.Vehicle speed sensor, brake-pedal travel sensing in above-mentioned embodiment
Device, wheel speed sensors, steering angle sensor, beat rate sensor and brake system control unit
Driving type piezoelectric actuator brake also includes Engine ECU, speed changer ECU and by control unit of engine and engine
ECU, speed changer ECU connection communications CAN-BUS buses, limitation now engine power output and transmission downshifts are reached with this
Instruction.
Driving type piezoelectric actuator brake also includes the instrument and CAN-BUS of brake system control unit and meter communication is total
Line.
Those skilled in the art can be obvious, can to the present invention above-mentioned example embodiment carry out various modifications and variations and
Without departing from the spirit and scope of the present invention.Accordingly, it is intended to present invention covering is set to fall in appended claims and its equivalence techniques
Modifications of the present invention and modification in aspects.
Claims (9)
1. a kind of driving type piezoelectric actuator brake, it is characterised in that it includes terminal positive (1), terminal negative (3), piezoelectricity
Component (5), the first end face (4) on the outside of piezoelectric element (5), the second end face (8) on the inside of piezoelectric element (5), position
Move enlarger, inboard brake friction plate (10), external cheek brake friction plate (12), for adjusting inboard brake friction plate
(10) between external cheek brake friction plate (12) gap gap adjustment bolt (2) and float type brake caliper housing (13),
The piezoelectric element (5) includes the piezoelectricity positive electrode layer (6) being connected with terminal positive (1) and and the binding post being arranged alternately
The piezoelectricity positive electrode layer (7) that negative pole (3) is connected, piezoelectric element (5) displacement deformation rubs so as to reduce inboard brake after energization
Gap between pad (10) and external cheek brake friction plate (12) piezoelectric element (5) is simultaneously amplified by displacement amplifying mechanism
Displacement deformation.
2. driving type piezoelectric actuator brake as claimed in claim 1, it is characterised in that the displacement amplifying mechanism includes first
Move amplification lever (9) and second displacement amplification lever (15).
3. driving type piezoelectric actuator brake as claimed in claim 1, it is characterised in that the terminal positive (1) and binding post
Negative pole (3) is placed in float type brake caliper housing (13).
4. driving type piezoelectric actuator brake as claimed in claim 1, it is characterised in that the gap adjustment bolt (2) is with floating
Formula caliper shell (13) is threaded connection, changes inboard brake friction plate by running clearance regulating bolt (2)
(10) primary clearance between external cheek brake friction plate (12).
5. driving type piezoelectric actuator brake as claimed in claim 1, it is characterised in that it also includes vehicle speed sensor, braking is stepped on
Plate stroke sensor and brake system control unit, when the speed that vehicle speed sensor collects is less than preset value and brake pedal quilt
When stepping on, brake system control unit is by the brake-pedal travel of brake-pedal-travel sensor collection as modulation control voltage
Value signal, and modulation magnitude of voltage is modified by vehicle speed sensor feedback signal, reach closed-loop control.
6. driving type piezoelectric actuator brake as claimed in claim 1, it is characterised in that it also includes vehicle speed sensor, braking is stepped on
Plate stroke sensor, wheel speed sensors and brake system control unit, brake system control unit are sensed by brake-pedal travel
The brake-pedal travel modulation control voltage value signal of device collection, if recognized when being urgent brake pedal situation, system
Dynamic system control unit then modulates relevant voltage value signal, and in order to prevent wheel lock up situation from occurring, the magnitude of voltage of the modulation
Signal can diminish in wheel lock up, and return to initial value immediately, just not consider wheel when speed is less than preset value
Locking situation, wheel condition are gathered by wheel speed sensors.
7. driving type piezoelectric actuator brake as claimed in claim 1, it is characterised in that it also includes vehicle speed sensor, braking is stepped on
Plate stroke sensor, wheel speed sensors, steering angle sensor, beat rate sensor and brake system control unit, work as driver
Brake pedal simultaneously triggers brake switch and closed and when vehicle speed sensor collects speed and is higher than preset value, brakes control
Element analysis vehicle speed sensor, steering angle sensor and beat rate sensor signal value, such as judge that wheel is in oversteering shape
During state, then control system control unit applies modulation voltage value to vehicle outside front-wheel immediately, and oversteering work is made up to reach
Condition；When such as judging that wheel is in understeer state, then control system control unit applies to vehicle interior side trailing wheel modulate immediately
Magnitude of voltage, to reach steering situation of covering the shortage.
8. the driving type piezoelectric actuator brake as described in any one of claim 1 to 7, it is characterised in that it also includes engine
ECU, speed changer ECU and by control unit of engine and Engine ECU, the CAN-BUS buses of speed changer ECU connection communications.
9. the driving type piezoelectric actuator brake as described in any one of claim 1 to 7, it is characterised in that its also include instrument and
By the CAN-BUS buses of brake system control unit and meter communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710630097.8A CN107554503A (en) | 2017-07-28 | 2017-07-28 | Driving type piezoelectric actuator brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710630097.8A CN107554503A (en) | 2017-07-28 | 2017-07-28 | Driving type piezoelectric actuator brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107554503A true CN107554503A (en) | 2018-01-09 |
Family
ID=60973930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710630097.8A Pending CN107554503A (en) | 2017-07-28 | 2017-07-28 | Driving type piezoelectric actuator brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107554503A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513409A (en) * | 2019-08-20 | 2019-11-29 | 浙江师范大学 | A kind of brake-by-wire device |
| CN110566603A (en) * | 2019-08-20 | 2019-12-13 | 浙江师范大学 | Wire control actuator |
| CN110641435A (en) * | 2018-06-26 | 2020-01-03 | 长城汽车股份有限公司 | Vehicle braking method and device |
| CN110985567A (en) * | 2019-10-28 | 2020-04-10 | 南京航空航天大学 | Drum brake device for small aircraft and working method |
| CN111255826A (en) * | 2020-02-28 | 2020-06-09 | 江苏大学 | Piezoelectric energy harvesting caliper brake and braking energy harvesting method thereof |
| CN113064255A (en) * | 2021-04-01 | 2021-07-02 | 中国空空导弹研究院 | Laser emitter zoom mechanism |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19818156A1 (en) * | 1998-04-23 | 1999-10-28 | Bosch Gmbh Robert | Piezohydraulic wheel brake device for vehicle hydraulic brake system |
| CN101624048A (en) * | 2009-08-06 | 2010-01-13 | 清华大学 | Vehicle electromechanical hydraulic braking system |
| CN201679890U (en) * | 2010-05-10 | 2010-12-22 | 奇瑞汽车股份有限公司 | Novel electronic mechanical brake for vehicle |
| CN103332184A (en) * | 2013-06-08 | 2013-10-02 | 北京航空航天大学 | Electric-hydro complex brake control method for electric vehicle use and controlling device thereof |
| CN103486163A (en) * | 2013-09-29 | 2014-01-01 | 江苏理工学院 | Piezoelectric type brake executing mechanism of electronic mechanical brake system of vehicle |
| CN203500336U (en) * | 2013-09-29 | 2014-03-26 | 江苏理工学院 | Piezoelectric type braking executing mechanism of vehicle electronic mechanical braking system |
| CN206072181U (en) * | 2016-08-29 | 2017-04-05 | 徐州五洋科技股份有限公司 | Hydraulic brake |
-
2017
- 2017-07-28 CN CN201710630097.8A patent/CN107554503A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19818156A1 (en) * | 1998-04-23 | 1999-10-28 | Bosch Gmbh Robert | Piezohydraulic wheel brake device for vehicle hydraulic brake system |
| CN101624048A (en) * | 2009-08-06 | 2010-01-13 | 清华大学 | Vehicle electromechanical hydraulic braking system |
| CN201679890U (en) * | 2010-05-10 | 2010-12-22 | 奇瑞汽车股份有限公司 | Novel electronic mechanical brake for vehicle |
| CN103332184A (en) * | 2013-06-08 | 2013-10-02 | 北京航空航天大学 | Electric-hydro complex brake control method for electric vehicle use and controlling device thereof |
| CN103486163A (en) * | 2013-09-29 | 2014-01-01 | 江苏理工学院 | Piezoelectric type brake executing mechanism of electronic mechanical brake system of vehicle |
| CN203500336U (en) * | 2013-09-29 | 2014-03-26 | 江苏理工学院 | Piezoelectric type braking executing mechanism of vehicle electronic mechanical braking system |
| CN206072181U (en) * | 2016-08-29 | 2017-04-05 | 徐州五洋科技股份有限公司 | Hydraulic brake |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110641435A (en) * | 2018-06-26 | 2020-01-03 | 长城汽车股份有限公司 | Vehicle braking method and device |
| CN110513409A (en) * | 2019-08-20 | 2019-11-29 | 浙江师范大学 | A kind of brake-by-wire device |
| CN110566603A (en) * | 2019-08-20 | 2019-12-13 | 浙江师范大学 | Wire control actuator |
| CN110566603B (en) * | 2019-08-20 | 2021-02-02 | 浙江师范大学 | Wire control actuator |
| CN110985567A (en) * | 2019-10-28 | 2020-04-10 | 南京航空航天大学 | Drum brake device for small aircraft and working method |
| CN111255826A (en) * | 2020-02-28 | 2020-06-09 | 江苏大学 | Piezoelectric energy harvesting caliper brake and braking energy harvesting method thereof |
| CN111255826B (en) * | 2020-02-28 | 2021-07-20 | 江苏大学 | Piezoelectric energy harvesting caliper brake and braking energy harvesting method thereof |
| CN113064255A (en) * | 2021-04-01 | 2021-07-02 | 中国空空导弹研究院 | Laser emitter zoom mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107554503A (en) | Driving type piezoelectric actuator brake | |
| CN101519064B (en) | Braking device | |
| US8468820B2 (en) | Brake actuating unit | |
| JP4185597B2 (en) | Brake device for automobile | |
| US7976109B2 (en) | Failsafe operation of a hybrid brake system for a vehicle | |
| US10328920B2 (en) | Control device for at least one electric parking brake of a brake system of a vehicle and method for operating a brake system of a vehicle having a brake booster and an electric parking brake | |
| WO2012111730A1 (en) | Braking control device for vehicle | |
| US9061672B2 (en) | Vehicle brake device and method of controlling vehicle brake device | |
| US8240780B1 (en) | Hydraulic brake booster | |
| KR20080034937A (en) | Recovery of energy in a hybrid vehicle comprising a hydraulic or pneumatic braking system | |
| KR20090045890A (en) | Method for operating a combined vehicle braking system | |
| EP1352799A2 (en) | Hybrid brake system for a vehicle | |
| JP4749529B2 (en) | Brake pressure control device for automobile and control method of hydraulic brake force amplification | |
| JP4718006B2 (en) | Brake force booster for automobiles | |
| DE102014201792A1 (en) | Actuator device for a hydraulic brake of a vehicle, vehicle and method for actuating a hydraulic brake of a vehicle | |
| CN102729964B (en) | Vehicle braking force controller and method | |
| EP2250054B1 (en) | Device and method for detecting a brake actuation | |
| KR102337460B1 (en) | Control device and method for actuating an electromechanical brake booster of a brake system designed to execute an anti-lock adjustment process | |
| JP4179692B2 (en) | Brake-by-wire service brake | |
| KR101392818B1 (en) | Method for controlling hydraulic of regenerative brake system for vehicle | |
| US8364371B2 (en) | Brake system functional integrity detection | |
| JP6300385B2 (en) | Vehicle behavior control device | |
| JP6003683B2 (en) | Brake system for vehicles | |
| KR20040034152A (en) | Auxiliary brake system in vehicle | |
| JPH0221982B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180109 |