CN106347334A - Device capable of improving active braking speed and vehicle - Google Patents
Device capable of improving active braking speed and vehicle Download PDFInfo
- Publication number
- CN106347334A CN106347334A CN201610877366.6A CN201610877366A CN106347334A CN 106347334 A CN106347334 A CN 106347334A CN 201610877366 A CN201610877366 A CN 201610877366A CN 106347334 A CN106347334 A CN 106347334A
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- China
- Prior art keywords
- hydraulic pump
- oil storage
- storage hole
- fluid
- brake fluid
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/48—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
- B60T8/4809—Traction control, stability control, using both the wheel brakes and other automatic braking systems
- B60T8/4827—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems
- B60T8/4863—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems
- B60T8/4872—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems pump-back systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/16—Master control, e.g. master cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/175—Brake regulation specially adapted to prevent excessive wheel spin during vehicle acceleration, e.g. for traction control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/1755—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
- B60T8/17554—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve specially adapted for enhancing stability around the vehicles longitudinal axle, i.e. roll-over prevention
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/1755—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
- B60T8/17558—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve specially adapted for collision avoidance or collision mitigation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/24—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle inclination or change of direction, e.g. negotiating bends
- B60T8/241—Lateral vehicle inclination
Abstract
The invention relates to a device capable of improving an active braking speed and a vehicle. The device comprises an electronic stability program (ESP) system and a circulation liquid-supplementing assembly. The ESP comprises a hydraulic pump and an oil supply valve. The circulation liquid-supplementing assembly is connected with an outlet of the oil supply valve and an inlet of the hydraulic pump. Braking fluid is stored in the circulation liquid-supplementing assembly. During active braking, the circulation liquid-supplementing assembly is used for inputting the braking fluid into the inlet of the hydraulic pump during a hydraulic pump starting stage so as to supplement insufficiency of the braking fluid during the hydraulic pump starting stage. According to the technical scheme, before the braking fluid of a brake master cylinder reaches the inlet of the hydraulic pump through a complex path, the hydraulic pump can work effectively, the braking fluid is pumped out quickly, wheel cylinder pressure is established instantly, so that response time of active pressure establishment is shortened, the wheel active braking speed is improved, driving skid resistance and rollover resistance of the ESP system are improved, and vehicle stability can be controlled timely.
Description
Technical field
The present invention relates to technical field of vehicle control, more particularly, to a kind of device that can improve active brake speed and car
?.
Background technology
In conventional automobile brake, hydraulic coupling is made to be applied on master cylinder and then be applied to by the operation of brake pedal
On the wheel cylinder w1～w4 of brake, to be braked.When brake braking force is more than the stiction on tire and ground, wheel
Can skid on road surface, lead to ground brake force to decline, decline and then lead to wheel in the face of the side force of wheel with also resulting in
Steering moment decline it is therefore necessary to prevent this skidding to guarantee optimum braking effect it is necessary to guarantee skid steer
When wheel have enough steering moments and then guarantee the controlled of direction of traffic.Automobile accelerate when, when engine throttle oil supply mistake
I.e. wheel driving force is more than the stiction of tire and ground greatly, and wheel also can skid and lead under driving force decline and steering moment
Fall.Automobile is turned in running at high speed, Emergency avoidance when, easily lead to because of understeer or ovdersteering collide or turn on one's side,
At this time need specific wheel is braked to correct steering moment.Therefore, a kind of controllable applying is proposed in prior art
The electronic stability system (esp) of the hydraulic coupling on wheel cylinder preventing the generation of these phenomenons, this electronic stability system bag
Include hydraulic control unit (abbreviation hcu) and electronic control unit (abbreviation ecu), wherein, hcu includes multiple electromagnetic valves, stores liquid
Device, hydraulic pump and fluid valve block etc..
Traditional automobile electronic stabilization system hydraulic schematic diagram is as shown in Figure 1.Esp system pass through brake pipe respectively with system
Wheel cylinder w1～w4 the hydraulic connecting of dynamic pump assembly 1 and 4 wheels, due to the master cylinder of brake pump assembly have two defeated
Go out passage, each passage provides brake fluid pressure to two wheel cylinder w1～w4 respectively, and esp system is also divided into two loops, from liquid
Say in pressure principle, first loop on the esp system left side and the second servo loop on the right are full symmetric.This esp system includes 2
Isolating valve (normally open solenoid valve) t1～t2,2 delivery valve (normally closed solenoid valve) s1～s2,4 blocked valve (normally open solenoid valve) i1
～i4,4 relief valve (normally closed solenoid valve) d1～d4,2 groups of hydraulic pump p1～p2, motor m, 2 hydraulic accumulator l1～l2, several
Check valve, pressure transducer 2 and fluid valve block；Wherein, fluid valve block is used for installing, fixes, seals other functional parts simultaneously
There is provided various hydraulic channels, pressure transducer 2 is connected with any output channel of master cylinder (shown in Fig. 1 is and first time
Road connects), motor m is used for driving two hydraulic pump p1～p2；The functions such as electromagnetic valve, hydraulic pump p1～p2, hydraulic accumulator l1～l2
The generally symmetrical arrangement of part (ignoring the difference of electromagnetic valve throttle orifice, hydraulic accumulator volume etc.) is in fluid valve block.
Esp System Working Principle, process are described below:
When carrying out conventional brake, the no any control instruction of ecu, hcu also no any action.It is total that driver steps on brake pump
The pedal becoming, the brake fluid in master cylinder sequentially pass through isolating valve t1～t2 and the check valve in parallel with isolating valve, blocked valve i1～
I4 enters wheel cylinder w1～w4；Driver unclamps pedal, brake fluid from wheel cylinder w1～w4 sequentially pass through blocked valve i1～i4 and with resistance
Disconnected valve i1～i4 check valve in parallel, isolating valve t1～t2 return master cylinder.
When the pedal force that driver applies is excessive, ecu monitors wheel system by the wheel speed sensors being arranged on wheel
Dynamic state, if discovering wheel locking trend, ecu sends control instruction, blocked valve i1～i4 energising is closed and makes to drive
The master cylinder hydraulic pressure power that the person's of sailing pedal produces can not be delivered to wheel cylinder w1～w4；If the also tendency of locking, then by relief valve d1
～d4 energising is opened so that the brake fluid of wheel cylinder w1～w4 lets out in hydraulic accumulator l1～l2 reduces brake force, simultaneously to motor m
Energising, hydraulic pump p1～p2 starts brake fluid from hydraulic accumulator l1～l2 extraction, returns to master cylinder through isolating valve.
When occurring, driving force is excessive, vehicle front has barrier or vehicle to have rollover trend, needs wheel is carried out
Active is built when suppressing dynamic, and ecu is entered by the signal of wheel speed sensors, steering wheel angle position sensor, vehicle body inertia sensor
Row judges and sends control instruction, and isolating valve t1～t2 energising is closed to prevent system in wheel cylinder w1～w4 pressurization
Hydrodynamic returns master cylinder, delivery valve s1～s2 energising is opened and makes brake fluid enter the import of hydraulic pump p1～p2 from master cylinder, with
When allow hydraulic pump p1～p2 work to motor m energising, the brake fluid coming through delivery valve s1～s2 from master cylinder is pumped out, through blocking
Valve i1～i4 enters wheel cylinder w1～w4 and sets up pressure, realizes active brake.
Esp system each loop corresponding is provided with isolating valve t1～t2, delivery valve s1～s2 and hydraulic accumulator l1～l2, right
Blocked valve i1～i4 and relief valve d1～d4 should be provided with by each wheel cylinder w1～w4, so above-mentioned press to wheel cylinder w1～w4
The pressure release of power, build press work ecu instruction under can be independently controlled for any wheel, realize esp system to vehicle
Stability contorting.
But from master cylinder to the import of hydraulic pump p1～p2, on actual hcu structure is arranged, its hydraulic channel bag
Complex passages, path length and complexity containing the complex passages on brake piping, fluid valve block, delivery valve s1～s2, to flow of pressurized
Dynamic obstruction is larger.Wheel cylinder w1～w4 is carried out actively build compacting dynamic when, because driver does not tread on plate, master cylinder no pressure, only
Brake fluid in the vacuum attraction master cylinder set up at pump inlet after relying on hydraulic pump p1～p2 to start, in the initial startup of motor m
The speed that graduated application liquor stream enters hydraulic pump p1～p2 import does not catch up with the speed that hydraulic pump p1～p2 starts, during this period of time
Almost pump is not fuel-displaced for hydraulic pump p1～p2, so the response actively building pressure is poor, esp system drive is anti-skidding and anti-rollover for impact
Performance, especially at low ambient temperatures, braking fluid viscosity change leads to greatly mobility to be deteriorated, and this impact is especially great.
Content of the invention
The technical problem to be solved is that solution hydraulic pump startup stage brake fluid is under-supply, affects wheel master
The defect of dynamic retro-speed.
For this purpose it is proposed, the present invention proposes a kind of device that can improve active brake speed, comprising:
Electric stabilizing system esp and circulation fluid infusion assembly；Described esp includes hydraulic pump and delivery valve；Described circulation fluid infusion
Assembly connects the outlet of described delivery valve and the import of described hydraulic pump；Be stored with described circulation fluid infusion assembly brake fluid；
In active brake, described circulation fluid infusion assembly was used in described hydraulic pump startup stage, will be defeated for described brake fluid
Enter the import of described hydraulic pump, to supplement the deficiency of described hydraulic pump startup stage brake fluid.
Preferably, described circulation fluid infusion assembly includes the fluid valve block being provided with oil storage hole；One end of described oil storage hole is passed through
Plug seals, and the other end connects the import of described hydraulic pump and the outlet of described delivery valve；Described plug and described oil storage hole it
Between be provided with airtight air chamber；Described oil storage hole is used for storing brake fluid；Described air chamber is used for promoting described brake fluid from institute
The import stating hydraulic pump enters described hydraulic pump.
Preferably, the plug surface near described oil storage hole side is provided with that annular is raised, raised interior of described annular
Side forms groove；It is embedded with seal member between the raised outside of described annular and the inwall of described oil storage hole；
Wherein, described groove memory storage air forms described air chamber；Described seal member be used for by described air chamber with
Described brake fluid isolation.
Preferably, the end face of described seal member is provided with positive stop lug boss, the inwall of described positive stop lug boss and described oil storage hole
Contact, by described air chamber and described brake fluid isolation.
Preferably, the annular convex surfaces near described oil storage hole inwall side are provided with and are matched with described positive stop lug boss
Limited block；Described limited block is used for limiting the sliding distance of described positive stop lug boss.
Preferably, pass through riveting between described plug and described fluid valve block to seal one end of oil storage hole.
Preferably, it is provided with passage in described fluid valve block；Described oil storage hole connects described hydraulic pressure respectively by described passage
The import of pump and the outlet of described delivery valve.
Preferably, described seal member is leather cup.
Preferably, described leather cup is made up of elastomeric material.
Another reverse side, present invention also offers a kind of vehicle, this vehicle include above-mentioned any one can improve actively system
The device of dynamic speed.
The device that active brake speed can be improved provided in an embodiment of the present invention and vehicle, by delivery valve and hydraulic pressure
Connect circulation fluid infusion assembly between pump, in hydraulic pressure pump startup moment, rapidly brake fluid is added to hydraulic pressure pump inlet, thus in system
So that hydraulic pump can be effective in transit time before pahtfinder hard reaches the import of hydraulic pump for the brake fluid of dynamic master cylinder
Work, quickly pumps out brake fluid, so that pressure of wheel braking cylinder is at once set up, therefore shorten the response time actively building pressure, improve car
The speed of wheel active brake, and then Anti-slip regulation and the anti-rollover performance of esp system can be improved, in time vehicle stabilization is carried out
Control.
Brief description
The features and advantages of the present invention can be more clearly understood from by reference to accompanying drawing, accompanying drawing is schematic and should not manage
Solution is to carry out any restriction to the present invention, in the accompanying drawings:
Fig. 1 is the hydraulic schematic diagram schematic diagram of existing electric stabilizing system；
Fig. 2 is that a kind of hydraulic principle of device that can improve active brake speed provided in an embodiment of the present invention is illustrated
Figure；
Fig. 3 circulates the cross-sectional view of fluid infusion assembly for the embodiment of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention is described in detail.
It should be noted that due to existing electronic stability system (esp) from master cylinder to hydraulic pump p1～p2's
Import, its hydraulic channel comprises the complex passages of brake piping, the complicated path on fluid valve block and delivery valve s1～s2, path
Long and complicated, hydraulic flow is hindered larger, when occurring, driving force is excessive, vehicle front has barrier or vehicle produces rollover and becomes
Gesture, need wheel is carried out actively to build compacting dynamic when, because driver does not tread on plate, master cylinder no pressure, only rely on hydraulic pump p1
Brake fluid in the vacuum attraction master cylinder set up at pump inlet after～p2 startup, in the initial startup stage braking liquor stream of motor m
The speed entering hydraulic pump p1～p2 import does not catch up with the speed that hydraulic pump p1～p2 starts, during this period of time hydraulic pump p1～p2
Almost pump is not fuel-displaced, so the response actively building pressure is poor, active brake speed is slow, and impact esp system drive is anti-skidding and anti-
Rollover performance.
In order to solve the above problems, as shown in Fig. 2 embodiments providing one kind can improve active brake speed
Device, this device includes:
Electric stabilizing system (esp) and circulation fluid infusion assembly；Described esp include hydraulic pump p1～p2 and delivery valve s1～
s2；Described circulation fluid infusion assembly connects the outlet of described delivery valve s1～s2 and the import of described hydraulic pump p1～p2；Described follow
Be stored with ring fluid infusion assembly brake fluid；
In active brake, described circulation fluid infusion assembly was used in described hydraulic pump p1～p2 startup stage, by described system
Hydrodynamic inputs the import of described hydraulic pump p1～p2, to supplement the deficiency of described hydraulic pump p1～p2 startup stage brake fluid.
Wherein, this esp system is existing automobile electronic stabilization system (referring to the description of background section).This
, in order to solve in hydraulic pump p1～p2 startup stage, the not enough problem of hydraulic pump p1～p2 brake fluid, existing for bright embodiment
It is connected to circulation fluid infusion assembly between the hydraulic pump p1～p2 of esp system and delivery valve s1～s2, deposit in this circulation fluid infusion assembly
Contain brake fluid, this assembly can hydraulic pump p1～p2 start moment rapidly by the brake fluid of storage add to hydraulic pump p1～
The import of p2, allows hydraulic pump p1～p2 can quickly pump out brake fluid, thus master cylinder brake fluid through pahtfinder hard
Reach in the transit time before the import of hydraulic pump p1～p2, allow for hydraulic pump p1～p2 and can effectively work, thus contracting
The short response time actively building pressure, improves the speed of active brake, and solving existing esp system is needing active brake
When, hydraulic pump p1～p2 startup stage, the speed of brake fluid inflow hydraulic pump p1～p2 import does not catch up with hydraulic pump p1～p2 and opens
Dynamic speed, during this period of time hydraulic pump p1～p2 almost not fuel-displaced defect of pump.
Specifically, when occurring, driving force is excessive, vehicle front has barrier or vehicle to have rollover trend, needs to car
Wheel carry out actively building compacting dynamic when, electronic control unit (ecu) passes through wheel speed sensors, steering wheel angle position sensor and car
The signal of body inertia sensor is judged and is sent control instruction, and isolating valve t1～t2 energising is closed to prevent in wheel cylinder w1
In～w4 pressurization, master cylinder return by brake fluid, and delivery valve s1～s2 energising unlatching is enable brake fluid to enter from master cylinder
Enter the import of hydraulic pump p1～p2, allow hydraulic pump p1～p2 to work to motor m energising, hydraulic pump p1～p2 starts moment simultaneously,
Brake fluid in circulation fluid infusion assembly initially enters hydraulic pump p1～p2, and hydraulic pump p1～p2 is by from circulation fluid infusion assembly
Brake fluid pumps out, and enters wheel cylinder w1～w4 through blocked valve i1～i4 and sets up pressure, realizes active brake, thus in master cylinder
In transit time before delivery valve s1～s2 reaches the import of hydraulic pump p1～p2 for the brake fluid, allow for hydraulic pump p1～
P2 can effectively work, and improves the speed of active brake.It should be noted that due to circulation fluid infusion assembly connect delivery valve s1～
The outlet of s2, thus after motor m closing hydraulic pump p1～p2 quits work, before delivery valve s1～s2 closes, master cylinder
Brake fluid reach circulation fluid infusion assembly through delivery valve s1～s2, circulation fluid infusion assembly can be filled up, be easy to next time actively
In time brake fluid is added to the import of hydraulic pump p1～p2 during braking.
The device that active brake speed can be improved provided in an embodiment of the present invention, by between delivery valve and hydraulic pump
Connect circulation fluid infusion assembly, in hydraulic pressure pump startup moment, rapidly brake fluid is added to hydraulic pressure pump inlet, thus in master cylinder
Brake fluid through pahtfinder hard reach hydraulic pump import before transit time in so that hydraulic pump can effectively work,
Quickly pump out brake fluid, so that pressure of wheel braking cylinder is at once set up, therefore shorten the response time actively building pressure, improve wheel actively
The speed of braking, and then Anti-slip regulation and the anti-rollover performance of esp system can be improved, in time vehicle stabilization is controlled.
On the basis of above-described embodiment, as shown in figure 3, described circulation fluid infusion assembly includes being provided with the fluid of oil storage hole 12
Valve block 10；One end of described oil storage hole 12 is sealed by plug 30, and the other end connects import and the institute of described hydraulic pump p1～p2
State the outlet of delivery valve s1～s2；It is provided with airtight air chamber 31 between described plug 30 and described oil storage hole 12；Described oil storage
Hole 12 is used for storing brake fluid；Described air chamber 31 is used for promoting described brake fluid to enter from the import of described hydraulic pump p1～p2
Described hydraulic pump p1～p2.Air chamber 31 stores air, its air pressure (i.e. esp system under normal conditions in manufacture course of products naturally
System does not work) it is equal to atmospheric pressure, oil storage hole 12 drains air and with brake fluid filling with the hydraulic pump p1～p2's of esp system
The outlet of import and delivery valve s1～s2 connects.Start moment in hydraulic pump p1～p2, the import due to hydraulic pump p1～p2 is produced
Raw vacuum, the air in air chamber 31 pushes brake fluid the import of hydraulic pump p1～p2 to.Optionally, described plug 30 with described
Pass through riveting between fluid valve block 10 to seal one end of oil storage hole 12.Optionally, it is provided with passage 11 in described fluid valve block 10；
Described oil storage hole 12 connects the import of described hydraulic pump p1～p2 and described delivery valve s1～s2 respectively by described passage 11
Outlet.It should be noted that this passage 11 should be sufficiently large, and the unimpeded connection of import with hydraulic pump p1～p2, reduce as far as possible
Hydraulic pressure hinder, enable the brake fluid in oil storage hole 12 to rapidly enter hydraulic pump p1～p2, certainly this passage 11 also with delivery valve
The unimpeded connection of outlet of s1～s2, be easy to brake fluid in master cylinder from delivery valve s1～s2 out after Fast Filling oil storage hole 12,
Realize the circulation fuel feeding of circulation fluid infusion assembly.
Wherein, as shown in figure 3, being provided with annular projection 32, described circle near the plug surface of described oil storage hole 12 side
The inner side of annular protrusion 32 forms groove；It is embedded with close between the outside of described annular projection 32 and the inwall of described oil storage hole 12
Envelope part 20；Wherein, in this groove, storage air forms air chamber naturally；Described seal member 20 is used for described air chamber 31
With the isolation of described brake fluid.Optionally, described seal member 20 can be leather cup.Described leather cup can be relatively low and elastic by hardness
Deformation larger flexible material such as elastomeric material is made, and is easy to gas expansion in air chamber 31 thus to the system in oil storage hole 12
Hydrodynamic applies thrust.Optionally, the end face of described seal member 20 is provided with positive stop lug boss 21, described positive stop lug boss 21 and described storage
The contact internal walls of oilhole 12, by described air chamber 31 and described brake fluid isolation.As shown in figure 3, positive stop lug boss 21 is near oil storage
The side of hole 12 inwall and oil storage hole 12 contact internal walls, the side near plug 30 contacts with plug 30, in seal member 20 and
Form airtight air chamber 31, that is, the brake fluid of air chamber 31 and lower section is isolated by seal member 20 between plug 30.
Wherein, as shown in figure 3, annular projection 32 surfaces near described oil storage hole 12 inwall side are provided with and described limit
The limited block 33 that position boss 21 matches；Described limited block 33 is used for limiting the sliding distance of described positive stop lug boss 21.Need
Bright, due to the vacuum formed below in seal member 20 after pump startup, now the air in air chamber 31 is swollen because of pressure reduction
Swollen and then promotion seal member 20 moves down, so matching with positive stop lug boss 21 by limited block 33, can prevent air
Seal member 20 is released from oil storage hole 12 by the thrust that the gas expansion in chamber 31 produces.
The device that active brake speed can be improved provided in an embodiment of the present invention, it improves the work of active brake speed
Principles illustrated is as follows: when pressure startup is built in esp system active, (isolating valve t1～t2 closes, and delivery valve s1～s2 opens, blocked valve i1
～i4 opens, and relief valve d1～d4 closes, and motor m is energized), motor m obtains electric rear-guard hydrodynamic press pump p1～p2, hydraulic pump p1～p2
Import and passage 11 produce vacuum.Under atmospheric pressure effect, the brake fluid in master cylinder oil tank is overcoming brake piping, fluid
" roadblocks " such as complex passages on valve block, the complex passages of delivery valve s1～s2 reaches the import of pump after longer time；So
And before this, the leather cup (i.e. seal member 20) of circulation fluid infusion assembly is under the atmospheric pressure effect in air chamber 31 to moving down
Dynamic, promote the brake fluid in oil storage hole 12 to be directly entered the import of hydraulic pump p1～p2 in the short period of time through passage 11,
Hydraulic pump p1～p2 outlet is made to set up high pressure in very short time；Leather cup moves down, when the step of positive stop lug boss 21 inner side
The mobile end of leather cup when contacting with the limited block 33 of plug 30 lower end, but the varus boss in leather cup centre can be in air
The atmospheric pressure effect in chamber 31 is lower outwards to be deformed, and continues to press on the brake fluid in oil storage hole 12 and enters entering of hydraulic pump p1～p2
Mouth, the atmospheric pressure declining because of volumetric expansion in air chamber 31 and the deformation force increasing with leather cup deflection and increasing
Reach balance, before equilibrium is reached, the brake fluid in master cylinder oil tank has been able to reach the import of hydraulic pump p1～p2,
Hydraulic pump p1～p2 is remained valid work；Esp system is actively built pressure and is terminated, and motor m power-off hydraulic pump p1～p2 stops work
Make, then delivery valve s1～s2 power-off, before delivery valve s1～s2 power-off, passage 11 and oil storage hole 12 pass through delivery valve s1～
S2 is connected with master cylinder and obtains atmospheric pressure, and leather cup is upwardly resetted by this pressure, and the brake fluid in master cylinder reaches storage simultaneously
Oilhole 12 is to fill oil storage hole 12.
On the other hand, the embodiment of the present invention additionally provides a kind of vehicle, and this vehicle can include above-described embodiment offer
Any one can improve the device of active brake speed.
The vehicle that active brake speed can be improved provided in an embodiment of the present invention, by between delivery valve and hydraulic pump
Connect circulation fluid infusion assembly, in hydraulic pressure pump startup moment, rapidly brake fluid is added to hydraulic pressure pump inlet, thus in master cylinder
Brake fluid through pahtfinder hard reach hydraulic pump import before transit time in so that hydraulic pump can effectively work,
Quickly pump out brake fluid, so that pressure of wheel braking cylinder is at once set up, therefore shorten the response time actively building pressure, improve wheel actively
The speed of braking, and then Anti-slip regulation and the anti-rollover performance of esp system can be improved, in time vehicle stabilization is controlled.
Although being described in conjunction with the accompanying embodiments of the present invention, those skilled in the art can be without departing from this
Various modifications and variations are made, such modification and modification each fall within by claims in the case of bright spirit and scope
Within limited range.
Claims (10)
1. a kind of device that can improve active brake speed is it is characterised in that include:
Electric stabilizing system esp and circulation fluid infusion assembly；Described esp includes hydraulic pump and delivery valve；Described circulation fluid infusion assembly
Connect the outlet of described delivery valve and the import of described hydraulic pump；Be stored with described circulation fluid infusion assembly brake fluid；
In active brake, described circulation fluid infusion assembly is used for, in described hydraulic pump startup stage, described brake fluid being inputted institute
State the import of hydraulic pump, to supplement the deficiency of described hydraulic pump startup stage brake fluid.
2. device according to claim 1 is it is characterised in that described circulation fluid infusion assembly includes the fluid being provided with oil storage hole
Valve block；One end of described oil storage hole is sealed by plug, and the other end connects the import of described hydraulic pump and going out of described delivery valve
Mouthful；It is provided with airtight air chamber between described plug and described oil storage hole；Described oil storage hole is used for storing brake fluid；Described air
Chamber is used for promoting described brake fluid to enter described hydraulic pump from the import of described hydraulic pump.
3. device according to claim 2 is it is characterised in that be provided with annulus near the plug surface of described oil storage hole side
Shape is raised, and the raised inner side of described annular forms groove；The inwall of the raised outside of described annular and described oil storage hole it
Between be embedded with seal member；
Wherein, described groove memory storage air forms described air chamber；Described seal member be used for by described air chamber with described
Brake fluid is isolated.
4. device according to claim 3 is it is characterised in that the end face of described seal member is provided with positive stop lug boss, described
Positive stop lug boss and the contact internal walls of described oil storage hole, described air chamber is isolated with described brake fluid.
5. device according to claim 4 it is characterised in that near described oil storage hole inwall side annular projection table
Face is provided with the limited block matching with described positive stop lug boss；Described limited block is used for limiting the sliding distance of described positive stop lug boss.
6. device according to claim 2 is it is characterised in that incited somebody to action by riveting between described plug and described fluid valve block
One end sealing of oil storage hole.
7. device according to claim 2 is it is characterised in that be provided with passage in described fluid valve block；Described oil storage hole leads to
Cross described passage and connect the import of described hydraulic pump and the outlet of described delivery valve respectively.
8. device according to claim 3 is it is characterised in that described seal member is leather cup.
9. device according to claim 8 is it is characterised in that described leather cup is made up of elastomeric material.
10. a kind of vehicle it is characterised in that include claim 1-9 any one described in can improve active brake speed
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877366.6A CN106347334A (en) | 2016-09-30 | 2016-09-30 | Device capable of improving active braking speed and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877366.6A CN106347334A (en) | 2016-09-30 | 2016-09-30 | Device capable of improving active braking speed and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106347334A true CN106347334A (en) | 2017-01-25 |
Family
ID=57866349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610877366.6A Pending CN106347334A (en) | 2016-09-30 | 2016-09-30 | Device capable of improving active braking speed and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106347334A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830173A (en) * | 2017-11-16 | 2018-03-23 | 山东五征集团有限公司 | Brake fluid fluid reservoir telescopic sealing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08324407A (en) * | 1995-05-30 | 1996-12-10 | Aisin Seiki Co Ltd | Hydraulic braking device of vehicle |
| DE102004011518A1 (en) * | 2003-03-12 | 2004-10-14 | Continental Teves Ag & Co. Ohg | Method of regulating vehicle brake control systems with anti-lock braking system and electronic stability program, where during anti-lock braking the hydraulic volume includes that in the low pressure reservoir |
| CN200985918Y (en) * | 2006-11-23 | 2007-12-05 | 王祖林 | Straight barrel type diaphragm energy accumulator |
| CN101193784A (en) * | 2005-06-09 | 2008-06-04 | 卢卡斯汽车股份有限公司 | Compensation of reduced brake effect of a hydraulic brake system for a land craft |
-
2016
- 2016-09-30 CN CN201610877366.6A patent/CN106347334A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08324407A (en) * | 1995-05-30 | 1996-12-10 | Aisin Seiki Co Ltd | Hydraulic braking device of vehicle |
| DE102004011518A1 (en) * | 2003-03-12 | 2004-10-14 | Continental Teves Ag & Co. Ohg | Method of regulating vehicle brake control systems with anti-lock braking system and electronic stability program, where during anti-lock braking the hydraulic volume includes that in the low pressure reservoir |
| CN101193784A (en) * | 2005-06-09 | 2008-06-04 | 卢卡斯汽车股份有限公司 | Compensation of reduced brake effect of a hydraulic brake system for a land craft |
| CN200985918Y (en) * | 2006-11-23 | 2007-12-05 | 王祖林 | Straight barrel type diaphragm energy accumulator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830173A (en) * | 2017-11-16 | 2018-03-23 | 山东五征集团有限公司 | Brake fluid fluid reservoir telescopic sealing device |
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Application publication date: 20170125 |