CN209410037U - A kind of control unit of motor driven brake actuator - Google Patents
A kind of control unit of motor driven brake actuator Download PDFInfo
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- CN209410037U CN209410037U CN201821667852.6U CN201821667852U CN209410037U CN 209410037 U CN209410037 U CN 209410037U CN 201821667852 U CN201821667852 U CN 201821667852U CN 209410037 U CN209410037 U CN 209410037U
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Abstract
A kind of control unit of motor driven brake actuator, it includes ECU component (18), the ECU component (18) connects hydraulic main cylinder (33), the hydraulic main cylinder (33) is also connected with stroke simulator (32), hydraulic main cylinder (33) includes lubricating cup (28), hydraulic main cylinder (33) and stroke simulator (32) are in cylinder body (3), it further include output connection port I (30a) above the cylinder body (3), output connection port II (30b), delivery outlet I (31a) and delivery outlet II (31b), wherein output connection port I (30a) is connected with output connection port II (30b) series connection, delivery outlet I (31a) is connected with delivery outlet II (31b) series connection.Compared with traditional vacuum booster unit, have it is light-weight, components are few, it is small in size the advantages that.
Description
Technical field
The present invention relates to a kind of control units of motor driven brake actuator, belong to field of automobile brake.
Background technique
With the continuous progress of technology, electric drive is applied in large quantities in the car, for electronic driver or mixing
The vehicle of power drive unit is verified, and the brake actuator of electric drive vehicle or hybrid vehicle makes conventional brake fluid
Pressure system becomes extra, and vehicle driver, which does as usual, operates the brake pedal of vehicle, but it overcomes spring or the bullet by spring generation
Power generates the feeling of similar conventional vehicular brake pedal.In the control unit of vehicle, the power of brake pedal is trampled by driver
The brake force for each wheel of vehicle is calculated, generates the pressing force of brake unit by control unit at single wheel.
However, currently, the development of the control unit about motor-driven brake actuator and immature.It is badly in need of a kind of stabilization, reliable
And the strong brake actuator control unit of endurance fills up technological gap.
Summary of the invention
First aspect present invention provides a kind of control unit of motor driven brake actuator comprising ECU component, it should
ECU component connects hydraulic main cylinder, which is also connected with stroke simulator, and the hydraulic main cylinder includes lubricating cup, described hydraulic
Master cylinder and the stroke simulator in cylinder body, further include above the cylinder body output connection port I, output connection port II,
Delivery outlet I and delivery outlet II, wherein output connection port I is connected with output connection port II series connection, delivery outlet I and delivery outlet
II series connection is connected.
The ECU component includes electronic control unit (Electronic Control Unit, be abbreviated as ECU), the electronics
Control unit connects normal-open electromagnetic valve A1, normal-open electromagnetic valve A2 and normal-closed electromagnetic valve A3, the electronic control unit
It is also connected with pressure sensor Pm and pressure sensor Pp.
It include shell outside the ECU component.ECU component passes through spiral shellSilkIt is fixedly installed in cylinder body top.
Stroke simulator includes simulator positioning piston, also sets up piston on the left of simulator positioning piston, the piston is right
End setting positioning sleeve II, is arranged elastic device between the positioning sleeve II connecting positioning sleeve I, positioning sleeve I and the positioning piston,
Chamber VI is constituted between positioning sleeve I and the positioning piston, includes sealing device on the outside of the positioning piston, the positioning piston
Right end further includes simulator retaining ring.
Preferably, the stroke simulator is below cylinder interior.
It is further preferred that being equipped with sealing device between the piston and the cylinder body.
Hydraulic main cylinder includes master cylinder piston I, and master cylinder piston I connects master cylinder piston II by elastic device, and the master cylinder is living
Filling in inside II further includes that magnet ring is fixed, which, which fixes between the master cylinder piston II, also sets up magnet ring I, magnet ring II and sealing
Device, the end of the master cylinder piston II also set up master cylinder retaining ring, and the end the master cylinder piston II also sets up bracket connecting shaft, should
Bracket connects shaft end and connects mounting bracket 1.
The magnet ring fixation is also connected with displacement sensor, which is additionally coupled to electronic control unit (ECU), with
Just the magnetic field variation signal of magnet ring is transmitted to each component.
The master cylinder piston I is inlaid in the cylinder body.
Master cylinder reset spring I is housed between the master cylinder piston I and the cylinder body, is equipped on the left of master cylinder reset spring I
Master cylinder spring positioning pedestal is connected between the master cylinder piston I and the master cylinder spring positioning pedestal by bolt II.
It is further preferred that being also connected with master cylinder bolt bush between the master cylinder piston I and bolt II.
Preferably, the magnet ring is embedded in the groove of the master cylinder piston II to fix.
Preferably, the master cylinder piston II is flush-mounted in the middle part of cylinder body, and is located at the upper portion of the stroke simulator
Position is equipped with sealing element between the master cylinder piston II and cylinder body.
Be installed on four cup seals on master cylinder piston I and master cylinder piston II by master cylinder body physical separation coelosis I,
Chamber II, chamber III, chamber IV.
The chamber II is connected with delivery outlet I, delivery outlet II, and normal-open electromagnetic valve A1 is sequentially installed on their pipeline
(being open position when being not powered on), pressure sensor Pp.
Chamber II is connected with chamber V, and normal-closed electromagnetic valve A3 (being closed position when being not powered on) is equipped on their pipeline.
Chamber IV is connected with output connection port I, output connection port II, and pressure biography is sequentially installed on their pipeline
Sensor Pm, normal-open electromagnetic valve A2 (being open position when being not powered on).
Lubricating cup is located at the side of cylinder body, is connected by bolt and cylinder body, while lubricating cup is equipped with cylinder body connector
Rubber seal ring is sealed.
Second aspect of the present invention provides a kind of control method of motor driven brake actuator, and this method includes following step
It is rapid:
Step S1: displacement sensor detects the mobile changes of magnetic field generated of magnet ring I, magnet ring II, and transfers signals to electricity
Sub-control unit (ECU), electronic control unit (ECU) output signal control each component work；
Step S2: chamber II is connected with delivery outlet I, delivery outlet II, is sequentially installed with open type on their connecting line
Solenoid valve A1, normal-open electromagnetic valve A1 is open position, pressure sensor Pp when being not powered on；Chamber II is connected with chamber V, they
Normal-closed electromagnetic valve A3 is installed, normal-closed electromagnetic valve A3 is closed position when being not powered on connecting line；Chamber IV and output connect
Port I, output connection port II are connected, and pressure sensor Pm, open type electromagnetism are sequentially installed on their connecting line
Valve A2, normal-open electromagnetic valve A2 is open position when being not powered on.
Step S3: stroke simulator assigns stroke and counter-force, and operator is made to feel the dress for seemingly generating brake force with legpower
It sets.The chamber V of stroke simulator is connected with chamber II, absorbs the brake fluid derived from chamber II.
Brake pedal, mounting bracket 1 are connect with brake pedal, and bracket connecting shaft is pushed to be moved to the left, and are pushed by leading
The component that the cylinder piston II, magnet ring I, magnet ring are fixed, magnet ring II, sealing ring II are fastenedly connected by bolt III slides pressure to the left
Contracting master cylinder reset spring II, while chamber II is compressed, hydraulic increase, normal-closed electromagnetic valve A3 is closed position when being not powered on, and is powered
Then in the open state afterwards, chamber II brake fluid is pressed into chamber V.
Step S4: chamber II is connected with delivery outlet I, delivery outlet II delivery outlet, in electric brake actuator work, is located at
Normal-open electromagnetic valve A1 energization on its pipeline is in close state, at this time delivery outlet I, the output of delivery outlet II brakeless liquid；
There is the oil return hole of a circle on the left of master cylinder piston II, the position of oil return hole is located at two Cup-shaped seal circles when original state
Between (i.e. chamber I), when master cylinder piston II is moved to the left by promotion, but before oil return hole is less than left side Cup-shaped seal circle, chamber at this time
II is compressed by small range, and chamber II brake fluid pressure is greater than lubricating cup pressure, and chamber II is to lubricating cup indentation brake fluid until master cylinder piston II
The oil return hole in left side passes through left side Cup-shaped seal circle；
Step S5: simulator reset spring I and simulator of the stroke simulator right-side cavity VI configured with arranged in series reset
Spring II applies spring force on emulator piston, when brake pedal is stepped on, applies a counter-force and passes sequentially through simulator work
Plug, brake fluid, master cylinder piston II are transmitted to brake pedal, and the deeper reaction force stepped on is bigger, generate system to operator with legpower
The feeling of power；
Step S6: master cylinder piston I left side structure limits its sliding scale, and preventing master cylinder piston I, excessive slip is compressed to the right
Chamber II, the structure carry out fastening company by bolt II by master cylinder spring positioning pedestal, master cylinder reset spring I, master cylinder bolt bush
It is connected into a component；
Step S7: when chamber II is constantly compressed, chamber II is hydraulic to be gradually increased, while master cylinder reset spring II is also compressed,
Spring force increases, when active force is greater than left side active force on the right side of master cylinder piston I, Slideslip and compression chamber IV to the left, chamber IV with
Output connection port I, output connection port II are connected, normally opened on its pipeline in electric brake actuator work
Type solenoid valve A2 energization is in close state, at this time output connection port I, the output of output connection port II brakeless liquid；
There is the oil return hole of a circle on the left of in the of step S8: master cylinder piston I, the position of oil return hole is located at two cup-shapeds when original state
Between sealing ring (both chambers III), be moved to the left when master cylinder piston I is pushed, but oil return hole be less than left side Cup-shaped seal circle before,
Chamber III is compressed by small range at this time, and III brake fluid pressure of chamber is greater than lubricating cup pressure, and chamber III is to lubricating cup indentation brake fluid until master cylinder
Oil return hole on the left of piston I passes through left side Cup-shaped seal circle；
Step S9: release brake pedal, master cylinder piston II slide to the right the release space chamber II, the hydraulic reduction of chamber II, chamber V
The hydraulic chamber II that is greater than is hydraulic, V brake fluid back cavity II of chamber, has oil return hole on the left of master cylinder piston II, when master cylinder piston II is slided to the right
Dynamic, after the cup seal on the left of oil return hole transit chamber I thereon, lubricating cup discharges brake fluid to chamber II.As chamber II is hydraulic and
II spring force of master cylinder reset spring reduces, and active force is greater than right side on the left of master cylinder piston I, and master cylinder piston I is slided to the right, discharges chamber
IV space, while compressed master cylinder reset spring I is gradually recovered original state, when the oil return hole of master cylinder piston I upper left side is logical
After crossing the cup seal in III left side of chamber, lubricating cup discharges brake fluid to chamber IV；Whole device restPoses.
Successively execute step S1, S2, S3, S4, S5, S6, S7, S8, S9.
When electric brake actuator failure, brake actuator of the present apparatus as the fluid pressure type of insurance.At this point, open type
Solenoid valve A1, normal-open electromagnetic valve A2, normal-closed electromagnetic valve A3 are all off-position, and normal-open electromagnetic valve A1 is connected, delivery outlet
I, delivery outlet II exports brake fluid to The vehicle stabilization servicing unit.Normal-open electromagnetic valve A2 is connected, output connection port I, output
Connectivity port II exports brake fluid to The vehicle stabilization servicing unit.Normal-closed electromagnetic valve A3 is closed, stroke simulator brakeless liquid
Input, does not work.
The control unit of motor driven brake actuator is as intelligent brake force aid system described in first aspect present invention
A part, both as pedal input signal is collected, output signal controls the device of electric brake actuator, while being electronic system again
Brake actuator when dynamic Actuators Failures as the fluid pressure type of insurance.
The control unit of motor driven brake actuator described in first aspect present invention is using described in second aspect of the present invention
The control method of motor driven brake actuator works.
The control unit of motor driven brake actuator of the present invention has the positive effect that:
1. the control unit of the motor driven brake actuator can not only be used for collecting pedal input signal, output signal control
The device of electric brake actuator processed, while being braking execution when electric brake actuator fails as the fluid pressure type of insurance again
Device.
2. applying a counter-force when brake pedal is stepped on and passing sequentially through emulator piston, brake fluid, the biography of master cylinder piston two
It is delivered to brake pedal, the deeper reaction force stepped on is bigger, generates the feeling of brake force with legpower to operator.
3. acquiring displacement signal using Hall sensor, signal acquisition is quick, sensitive.
4. being provided with pressure sensor on pipeline, loine pressure is acquired, feedback arrives ECU, has closed loop adjusting
Control function.5. components are highly integrated, compared with traditional vacuum booster unit, have light-weight, components are few, volume
The advantages that small.
Detailed description of the invention
Fig. 1 is a kind of section knot of a preferred embodiment of the control unit of motor driven brake actuator of the present invention
Structure schematic diagram；
Fig. 2 is the external structure schematic diagram of embodiment illustrated in fig. 1；
Fig. 3 is the working principle diagram of embodiment illustrated in fig. 1；
Numeral mark is meant that in Fig. 1-Fig. 3:
1 mounting bracket, 2 bracket connecting shaft, 3 cylinder body, 4 simulator retaining ring 5
Sealing ring I
6 simulators position the positioning of 78 bolt I of simulator reset spring I of piston, 9 simulator
Cover I
10 simulator reset spring II, 11 12 emulator piston of simulator positioning sleeve II, 13 master cylinder bullet
Spring positioning base
14 bolt II, 15 master cylinder reset spring I, 16 master cylinder bolt bush 17
Master cylinder piston I
19 20 master cylinder piston II of master cylinder reset spring II of 18ECU component, 21 Cup-shaped seal
Part
It is close that 22 bolt III, 23 magnet ring I, 24 magnet ring fixes 25 magnet ring II 26
Seal II
27 master cylinder retaining ring, 28 lubricating cup, 29 hall displacement transducer 30a output connection port I
32 stroke of 30b output connection port II 31a delivery outlet I 31b delivery outlet II
Simulator
35 motor driven of control unit of 33 hydraulic main cylinder, 34 motor driven brake actuator is braked
Actuator lubricating cup
36 The vehicle stabilization servicing units
Specific embodiment
Embodiment 1.1: a kind of control unit 34 of motor driven brake actuator comprising ECU component 18, the ECU group
Part connects hydraulic main cylinder 33, which is also connected with stroke simulator 32, and the hydraulic main cylinder 33 includes lubricating cup 28, described
Hydraulic main cylinder 33 and the stroke simulator 32 further include output connection port I 30a above the cylinder body 3, defeated in cylinder body 3
Connectivity port II 30b, delivery outlet I 31a and delivery outlet II 31b out, wherein output connection port I 30a and output connector
Mouth II 30b series connection is connected, and delivery outlet I 31a is connected with delivery outlet II 31b series connection.
ECU component 18 includes electronic control unit (Electronic Control Unit, be abbreviated as ECU), the electronics control
Unit connection normal-open electromagnetic valve A1, normal-open electromagnetic valve A2 and normal-closed electromagnetic valve A3 processed, the electronic control unit is also
Connect pressure sensor Pm and pressure sensor Pp.Plastic casing is wrapped up outside the ECU component 18, ECU component 18 passes through spiral shell
Silk is fixed on 3 top of cylinder body.
Stroke simulator 32 includes that simulator positions piston 6, also sets up piston 12 on the left of simulator positioning piston 6, should
Positioning sleeve II 11 is arranged in 12 right end of piston, and positioning sleeve II 11 connecting positioning sleeve I 9, positioning sleeve I 9 and the positioning are lived
Reset spring I 7 is set between plug 6, constitutes chamber VI between positioning sleeve I 9 and positioning piston 6, positioning includes sealing on the outside of piston 6
I 5 is enclosed, the right end of positioning piston 6 further includes simulator retaining ring 4.
Positioning sleeve II 11 is connect with positioning sleeve I 9 by bolt I 8, is equipped between positioning sleeve II 11 and positioning sleeve I 9
Reset spring II 10.
The section of positioning sleeve II 11 and positioning sleeve I 9 is " several " character form structure.
Stroke simulator 32 is flush-mounted in 3 lower inside of cylinder body.
Cup seal 21 is housed between piston 12 and the cylinder body 3.
Sealing ring I 5 is mounted on simulator positioning piston 6, plays the role of VI brake fluid of seal chamber.
Positioning sleeve II 11 is fixed by bolt I 8 and connects into a component.Cup seal 21 and simulator are living
12 cooperation of plug is played the role of for brake fluid being sealed in 21 left side of cup seal.
Hydraulic main cylinder 33 includes master cylinder piston I 17, and master cylinder piston I 17 is led by the connection of master cylinder reset spring II 19
It further include that magnet ring fixes 24 inside the cylinder piston II 20, master cylinder piston II 20, which fixes 24 and the master cylinder piston II
Magnet ring I 23, magnet ring II 25 and sealing ring II 26 are also set up between 20, the end of master cylinder piston II 20 also sets up master cylinder retaining ring
27,20 end master cylinder piston II also sets up bracket connecting shaft 2, which connects mounting bracket 1.
Magnet ring fixes 24 and is also connected with hall displacement transducer 29, and it is single which is additionally coupled to electronic control
First (ECU), so that the magnetic field variation signal of magnet ring is transmitted to each component.
Master cylinder piston I 17 is inlaid in the cylinder body 3.
Master cylinder reset spring I 15 is housed, master cylinder reset spring I 15 is left between master cylinder piston I 17 and the cylinder body 3
Side is equipped with master cylinder spring positioning pedestal 13, passes through bolt between the master cylinder piston I 17 and the master cylinder spring positioning pedestal 13
The connection of II 14.
Master cylinder bolt bush 16 is also connected between master cylinder piston I 17 and bolt II 14.
Master cylinder spring positioning pedestal 13, master cylinder reset spring I 15, master cylinder bolt bush 16 are carried out tightly by bolt II 14
It is connected and is connected into a component.
The end that magnet ring fixes 24 includes a depth and groove of same size, and the cross section of the groove is square, should
Bracket connecting shaft 2 is embedded in groove, one end which is embedded in groove is ballhead, which connect with bracket
It further include a circle spill ring between the main body of axis 2, the other end of bracket connecting shaft 2 connects mounting bracket 1.
The cross section of master cylinder piston II 20 is I-shaped structure, i.e. the both ends of master cylinder piston II 20 include groove.
It is embedded in the magnet ring in the groove of 20 one end master cylinder piston II and fixes 24, and the master cylinder piston II 20 is fixed with the magnet ring
Pass through the connection of bolt III 22 between 24.
Master cylinder piston II 20 is flush-mounted in the middle part of cylinder body 3, and is located at the top position of the stroke simulator, the master
Cup seal 21 is housed between the cylinder piston II 20 and cylinder body 3.
Four cup seals 21 being installed on master cylinder piston I 17 and master cylinder piston II 20 divide 3 physics of master cylinder body
It is divided into chamber I, chamber II, chamber III, chamber IV.
The chamber II is connected with I 31a of delivery outlet, II 31b of delivery outlet, and open type electricity is sequentially installed on their pipeline
Magnet valve A1, pressure sensor Pp.
Chamber II is connected with chamber V, and normal-closed electromagnetic valve A3 is equipped on their pipeline.
Chamber IV is connected with I 30a of output connection port, II 30b of output connection port, is sequentially installed on their pipeline
Pressure sensor Pm, normal-open electromagnetic valve A2.
It is tight by bolt III 22 that master cylinder piston II 20, magnet ring I 23, magnet ring fix 24, magnet ring II 25, sealing ring II 26
It is connected and is connected into a component.
Sealing ring II 26 is installed on magnet ring and fixes on 24, plays the role of sealing and dustproof.
Lubricating cup 28 is located at the side of cylinder body 3, is connected by bolt and cylinder body 3, while lubricating cup 28 and 3 connector of cylinder body
Rubber seal ring is installed to be sealed.
Second aspect of the present invention provides a kind of control method of motor driven brake actuator, and this method includes following step
It is rapid:
Step S1: displacement sensor 29 detects the mobile changes of magnetic field generated of magnet ring I 23, magnet ring II 25, and signal is passed
Defeated to arrive electronic control unit (ECU), electronic control unit (ECU) output signal controls each component work；
Step S2: chamber II is connected with delivery outlet I 31a, delivery outlet II 31b, successively installs on their connecting line
There is normal-open electromagnetic valve A1, normal-open electromagnetic valve A1 is open position, pressure sensor Pp when being not powered on；Chamber II is connected with chamber V
It is logical, normal-closed electromagnetic valve A3 is installed, normal-closed electromagnetic valve A3 is closed position when being not powered on their connecting line；Chamber IV with
Output connection port I 30a, output connection port II 30b are connected, and are sequentially installed with pressure sensing on their connecting line
Device Pm, normal-open electromagnetic valve A2, normal-open electromagnetic valve A2 is open position when being not powered on.
Step S3: stroke simulator 32 assigns stroke and counter-force, and operator is made to feel seemingly to generate brake force with legpower
Device.The chamber V of stroke simulator 32 is connected with chamber II, absorbs the brake fluid derived from chamber II.
Brake pedal, mounting bracket 1 are connect with brake pedal, and bracket connecting shaft 2 is pushed to be moved to the left, and are pushed by leading
The cylinder piston II 20, magnet ring I 23, magnet ring fix 24, magnet ring II 25, sealing ring II 26 is fastenedly connected by bolt III 22
Component sliding compression master cylinder reset spring II 19 to the left, while chamber II is compressed, hydraulic increase, normal-closed electromagnetic valve when being not powered on
A3 is closed position, then in the open state after energization, and chamber II brake fluid is pressed into chamber V.
Step S4: enabling chamber II be connected with delivery outlet I 31a, delivery outlet II 31b, in electric brake actuator work,
Normal-open electromagnetic valve A1 energization on its pipeline is in close state, and delivery outlet I 31a, delivery outlet II 31b are without system at this time
Hydrodynamic output；
There is an oil return hole of a circle in the left side of master cylinder piston II 20, and the position of oil return hole is located at two Cup-shaped seals when original state
Between circle 21 (i.e. chamber I), when master cylinder piston II 20 is moved to the left by promotion, but oil return hole is less than left side Cup-shaped seal circle 21
Before, chamber II is compressed by small range at this time, and chamber II brake fluid pressure is greater than 28 pressure of lubricating cup, and chamber II is straight to the indentation brake fluid of lubricating cup 28
Oil return hole to 20 left side master cylinder piston II passes through left side Cup-shaped seal circle 21；
Step S5: 32 right-side cavity VI of stroke simulator is configured with the simulator reset spring I 7 and simulator of arranged in series
Reset spring II 10 applies spring force on emulator piston 12, when brake pedal is stepped on, applies a counter-force and pass sequentially through
Emulator piston 12, brake fluid, master cylinder piston II 20 are transmitted to brake pedal, and the deeper reaction force stepped on is bigger, give operator
The feeling of brake force is generated with legpower；
Step S6: master cylinder piston I 17 left side structure limits its sliding scale, prevents master cylinder piston I 17 excessively sliding to the right
Dynamic compression chamber II, the structure pass through spiral shell by master cylinder spring positioning pedestal 13, master cylinder reset spring I 15, master cylinder bolt bush 16
Bolt II 14 is fastenedly connected into a component；
Step S7: when chamber II is constantly compressed, chamber II is hydraulic to be gradually increased, while master cylinder reset spring II 19 is also pressed
Contracting, spring force increase, when 17 right side active force of master cylinder piston I is greater than left side active force, Slideslip and compression chamber IV to the left,
Chamber IV is connected with output connection port I 30a, output connection port II 30b, in electric brake actuator work, is located at
Normal-open electromagnetic valve A2 energization on its pipeline is in close state, at this time output connection port I 30a, output connection port II
The output of 30b brakeless liquid；
Step S8: having an oil return hole of a circle on the left of master cylinder piston I 17, the position of oil return hole is located at two when original state
Between Cup-shaped seal circle 21 (both chamber III), work as master cylinder pistonI17 are moved to the left by promotion, but oil return hole is less than left side cup-shaped
Before sealing ring 21, chamber III is compressed by small range at this time, and chamber III brake fluid pressure is greater than 28 pressure of lubricating cup, and chamber III is to lubricating cup 28
Brake fluid is pressed into until the oil return hole in 17 left side master cylinder piston I passes through left side Cup-shaped seal circle 21；
Step S9: release brake pedal, master cylinder piston II 20 slide to the right the release space chamber II, the hydraulic reduction of chamber II, chamber
The V hydraulic chamber II that is greater than is hydraulic, and there is oil return hole in V brake fluid back cavity II of chamber, II 20 left side of master cylinder piston, when master cylinder piston II 20
It slides to the right, after the cup seal 21 on the left of oil return hole transit chamber I thereon, lubricating cup 28 discharges brake fluid to chamber II.With
Chamber II is hydraulic and II 19 spring force of master cylinder reset spring reduces, and 17 left side active force of master cylinder piston I is greater than right side, master cylinder piston
I 17 is slided to the right, discharges IV space of chamber, while compressed master cylinder reset springI15 are gradually recovered original state, work as master cylinder
After cup seal 21 on the left of the oil return hole transit chamber III of 17 upper left side of piston I, lubricating cup 28 discharges brake fluid to chamber IV；
Whole device restPoses.
Successively execute step S1, S2, S3, S4, S5, S6, S7, S8, S9.
When electric brake actuator failure, brake actuator of the present apparatus as the fluid pressure type of insurance.At this point, open type
Solenoid valve A1, normal-open electromagnetic valve A2, normal-closed electromagnetic valve A3 are all off-position, and normal-open electromagnetic valve A1 is connected, delivery outlet
I 31a, delivery outlet II 31b export brake fluid to The vehicle stabilization servicing unit 36.Normal-open electromagnetic valve A2 is connected, output connection
Port I 30a, output connection port II 30b export brake fluid to The vehicle stabilization servicing unit 36.Normal-closed electromagnetic valve A3 is closed
It closes, the input of 32 brakeless liquid of stroke simulator does not work.
Claims (9)
1. a kind of control unit of motor driven brake actuator comprising ECU component (18), the ECU component (18) connect liquid
It presses master cylinder (33), which is also connected with stroke simulator (32), and hydraulic main cylinder (33) includes lubricating cup (28), Hydraulic Main
Cylinder (33) and stroke simulator (32) further include output connection port I (30a) above the cylinder body (3), defeated in cylinder body (3)
Connectivity port II (30b), delivery outlet I (31a) and delivery outlet II (31b) out, wherein output connection port I (30a) and output connect
It connects port II (30b) series connection to connect, delivery outlet I (31a) is connected with delivery outlet II (31b) series connection, it is characterised in that: ECU component
It (18) include electronic control unit, which connects normal-open electromagnetic valve A1, normal-open electromagnetic valve A2 and normally closed
Type solenoid valve A3, the electronic control unit are also connected with pressure sensor Pm and pressure sensor Pp.
2. the control unit of motor driven brake actuator as described in claim 1, it is characterised in that: stroke simulator (32)
Piston (6) are positioned including simulator, also set up piston (12) on the left of simulator positioning piston (6), which sets
It sets positioning sleeve II (11), is arranged between the positioning sleeve II (11) connecting positioning sleeve I (9), positioning sleeve I (9) and positioning piston (6)
Elastic device constitutes chamber VI between positioning sleeve I (9) and positioning piston (6), include sealing device on the outside of positioning piston (6), should
The right end for positioning piston (6) further includes simulator retaining ring (4).
3. the control unit of motor driven brake actuator as claimed in claim 2, it is characterised in that: piston (12) and cylinder body
(3) sealing device is housed, hydraulic main cylinder (33) includes (17) master cylinder piston I, and master cylinder piston I (17) passes through elastic device between
It connects master cylinder piston II (20), it further includes that magnet ring fixes (24) that master cylinder piston II (20) is internal, which fixes (24) and institute
It states and also sets up magnet ring I (23), magnet ring II (25) and sealing device between master cylinder piston II (20), the master cylinder piston II (20)
End is also set up master cylinder retaining ring (27), and master cylinder piston II (20) end also sets up bracket connecting shaft (2), the bracket connecting shaft
(2) end connection mounting bracket (1).
4. the control unit of motor driven brake actuator as claimed in claim 3, it is characterised in that: magnet ring fixes (24) also
Displacement sensor is connected, which is additionally coupled to electronic control unit, to transmit the magnetic field variation signal of magnet ring
To each component.
5. the control unit of motor driven brake actuator as claimed in claim 3, it is characterised in that: master cylinder piston I (17)
Master cylinder reset spring I (15) is housed between the cylinder body (3), is determined on the left of master cylinder reset spring I (15) equipped with master cylinder spring
Position pedestal (13) is connect between the master cylinder piston I (17) and master cylinder spring positioning pedestal (13) by bolt II (14).
6. the control unit of motor driven brake actuator as claimed in claim 3, it is characterised in that: master cylinder piston II (20)
Flush-mounted in the middle part of cylinder body (3), and be located at the top position of stroke simulator (32), master cylinder piston II (20) and cylinder body (3) it
Between sealing element is housed, be installed on four sealing devices on master cylinder piston I (17) and master cylinder piston II (20) for master cylinder body (3)
Physical separation coelosis I, chamber II, chamber III, chamber IV.
7. the control unit of motor driven brake actuator as claimed in claim 6, it is characterised in that: the chamber II and output
Mouth I (31a), delivery outlet II (31b) are connected, and normal-open electromagnetic valve A1, pressure sensor are sequentially installed on their pipeline
Pp。
8. the control unit of motor driven brake actuator as claimed in claim 6, it is characterised in that: chamber II is connected with chamber V
It is logical, normal-closed electromagnetic valve A3 is installed on their pipeline.
9. the control unit of the motor driven brake actuator as described in any one of claim 6-8, it is characterised in that: chamber IV
It is connected with output connection port I (30a), output connection port II (30b), is sequentially installed with pressure sensing on their pipeline
Device Pm, normal-open electromagnetic valve A2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821667852.6U CN209410037U (en) | 2018-10-15 | 2018-10-15 | A kind of control unit of motor driven brake actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821667852.6U CN209410037U (en) | 2018-10-15 | 2018-10-15 | A kind of control unit of motor driven brake actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209410037U true CN209410037U (en) | 2019-09-20 |
Family
ID=67932685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821667852.6U Active CN209410037U (en) | 2018-10-15 | 2018-10-15 | A kind of control unit of motor driven brake actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209410037U (en) |
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2018
- 2018-10-15 CN CN201821667852.6U patent/CN209410037U/en active Active
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