CN104760584B - Brake power-assisted safety assisting system - Google Patents
Brake power-assisted safety assisting system Download PDFInfo
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- CN104760584B CN104760584B CN201510097617.4A CN201510097617A CN104760584B CN 104760584 B CN104760584 B CN 104760584B CN 201510097617 A CN201510097617 A CN 201510097617A CN 104760584 B CN104760584 B CN 104760584B
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- pipeline
- vacuum
- engine
- vacuum accumulator
- ecu
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses one kind brake power-assisted safety assisting system, including:Vacuum accumulator, which is provided with a pressure sensor, and the pressure sensor is connected with the ECU of vehicle, for the negative pressure signal gathered in the vacuum accumulator and be transferred to the ECU;Vacuum pressure accumulation control device, it is connected between the engine of vehicle and the vacuum accumulator, and be connected with the ECU, for when the negative pressure in the vacuum accumulator is less than a preset value, by engine to the vacuum accumulator air-breathing increasing the negative pressure in the vacuum accumulator;Normally closed solenoid valve, it is connected between the vacuum accumulator and the brake boost pump of vehicle, and be connected with the ECU, for when the engine speed is zero, being opened so that the vacuum gas in the vacuum accumulator can enter the brake boost pump by the control of the ECU.Above-mentioned safety assisting system being capable of normal brake application in engine misses rear vehicle.
Description
Technical field
The present invention relates to vehicle safety accessory system, more particularly to a kind of brake power-assisted safety assisting system.
Background technology
At present, the engine equipped with automatic transmission is more and more on the market, is closed always when automatic transmission breaks down
During lock, touch on the brake and be easily caused engine misses, after engine misses air inlet pipe without vacuum, now automobile brake perfrmance urgency
Play declines, and easily causes accident, the present invention be in order to solve that vehicle normal brake application can be ensured in a period of time after engine misses,
And there is corresponding warning system to send a signal to engine computer restarting, reduce accident risk.
The content of the invention
For above-mentioned the deficiencies in the prior art, the technical problems to be solved by the invention are:There is provided one kind in the machine of change
Flame-out rear vehicle is capable of the brake power-assisted safety assisting system of normal brake application.
In order to solve the above technical problems, one aspect of the present invention is:There is provided a kind of brake power-assisted auxiliary safely
Auxiliary system, including:Vacuum accumulator, which is provided with a pressure sensor, and the pressure sensor is connected with the ECU of vehicle, is used for
Gather the negative pressure signal in the vacuum accumulator and be transferred to the ECU;Vacuum pressure accumulation control device, is connected to the hair of vehicle
Between motivation and the vacuum accumulator, and it is connected with the ECU, for when the negative pressure in the vacuum accumulator is less than one pre-
If during value, by engine to the vacuum accumulator air-breathing increasing the negative pressure in the vacuum accumulator;Normally closed solenoid valve,
It is connected between the vacuum accumulator and the brake boost pump of vehicle, and is connected with the ECU, for when the engine speed
When being zero, opened by the control of the ECU so that the vacuum gas in the vacuum accumulator can be helped into the brake
Power pump.
Further, the side of the vacuum pressure accumulation control device is connected by first and second pipeline with the engine
Connect, opposite side is connected by the 3rd pipeline with the vacuum accumulator, a check valve, the list are provided with the 3rd pipeline
It is used to the gas unidirectional in vacuum accumulator is flowed in the engine to valve;The brake boost pump passes through one the 4th pipeline
It is connected with the vacuum accumulator, the normally closed solenoid valve is on the 4th pipeline.
Further, also including one the 5th pipeline, the 5th pipeline is connected to the vacuum pressure accumulation control device and institute
State brake boost pump between, with when vehicle be in engine misses driving states when, brake boost pump can by the 5th pipe
Road enables the vehicle to normal brake application using the vacuum gas that vacuum is stored inside pressing device.
Further, the vacuum pressure accumulation control device includes a valve element and located at the first of the valve element two ends and the
Two valve bodies, described first and second valve body is connected in the ECU;It is not when the speed of vehicle is not equal to zero, engine speed
Zero, and TPS, when being idle signal and brakeless signal, the ECU detects vacuum storage by the pressure sensor
It is described when the ECU controls first valve body to produce suction to the valve element when negative pressure in depressor is less than above-mentioned preset value
Valve element is moved so that engine is connected with the vacuum accumulator towards the direction of first valve body;If vehicle is in normal driving
During state, then when the ECU controls second valve body to produce suction to the valve element, the valve element is towards second valve body
Direction is moved so that the engine is connected with the brake boost pump;When the engine speed is zero, then first and
Second valve body does not produce suction to the valve element, the valve element return, make the engine and the vacuum accumulator and
Brake boost pump is not connected.
Further, the valve element include housing and the insert body in the housing, it is described first and second
Valve body is respectively arranged on the upper/lower terminal of the housing, and one end of first and second pipeline is connected to the side of the housing,
The other end is connected to engine, and one end of the 3rd pipeline is connected to the opposite side of the housing, the 3rd pipeline it is another
One end is connected to the vacuum accumulator, and one end of the 5th pipeline is connected to the opposite side of the housing, the 5th pipe
The other end in road is connected to the brake boost pump;The insert body includes vertically disposed first and second horizontal core and erects
The straight perpendicular core being located on first and second horizontal core, when first and second valve body does not produce suction to the valve element, two is horizontal
First and second pipeline is blocked in the side of core respectively;When first valve body produces suction to the valve element, the valve element sheet
Body is moved up so that first and second pipeline is in unplugged state, and the second horizontal core below the first horizontal core blocks the 5th pipe
Road is so that first and the 3rd pipeline communication;When second valve body produces suction to the valve element, the insert body is downward
Move, the first horizontal core blocks the 3rd pipeline, make second and the 5th pipeline communication.
Further, also including the 6th and the 7th pipeline, the 6th and the 7th pipe is managed with described first and second respectively
Road is set up in parallel, and the 6th and the 7th pipeline is respectively on first pipeline, under second pipe.
Brake power-assisted safety assisting system of the invention, compared to existing technology, has the advantages that:
The present apparatus is stored by the cooperation between the original papers such as magnetic valve, check valve, ECU, sensor and discharges vacuum, this
Plant installation cost relatively low, be adapted to any vehicle and install, after vehicle stall, brake boost pump also can smoothly from vacuum accumulator
Inside obtain vacuum pressure, to help vehicle can normal braking, reduce vehicle because flame-out rear braking braking occur it is abnormal draw
The security incident for rising, greatly increases personal safety, vehicle safety.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the off working state schematic diagram of present invention brake power-assisted safety assisting system.
Fig. 2 is the working state schematic representation after insert body is moved up in Fig. 1.
Fig. 3 is the working state schematic representation after insert body is moved down in Fig. 1.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
First, before being described to embodiment, it is necessary to which some herein presented terms are explained.Example
Such as:
If occurring describing various elements using the term such as " first ", " second " herein, but these elements should not
Limited by these terms.These terms are only used for distinguishing an element and another element.Therefore, " first " element can also
It is referred to as " second " element without departing from the teachings of the present invention.
In addition, it is to be understood that when an element " connection " is referred to or " coupled " to another element, it can be direct
Ground connection is directly coupled to another element or can also there is intermediary element.On the contrary, work as referring to an element " directly
When connection " or " directly coupling " are to another element, then in the absence of intermediary element.
The various terms for occurring herein are used only for describing the purpose of specific embodiment and are not intended as to this
The restriction of invention.Unless context is clearly dictated otherwise, then singulative is intended to also include plural form.
When in this manual using term " including " and/or when " including ", these terms specify the feature,
The presence of entirety, step, operation, element and/or part, but be also not excluded for more than one other feature, entirety, step,
The presence of operation, element, part and/or its group and/or additional.
On embodiment:
Fig. 1 to Fig. 3 is referred to, Fig. 1 is that the state of brake power-assisted safety assisting system after engine misses is illustrated
Figure, Fig. 2 is when engine does not stop working and do not step on the gas and brake(That is TPS sensor(Throttle Position
Senser, TPS)During for idle signal and brakeless signal)Brake power-assisted safety assisting system work shape
State figure, Fig. 3 is that automobile is in transport condition, i.e. engine in rotary regimes and steps on the gas or power-assisted of being braked when touching on the brake
The working state figure of safety assisting system.
The brake power-assisted safety assisting system of the present embodiment, including:Vacuum accumulator 1, which is provided with a pressure sensor
2, the pressure sensor 2 is connected with the ECU of vehicle, for the negative pressure signal gathered in the vacuum accumulator 1 and is transferred to institute
State ECU;Vacuum pressure accumulation control device 3, is connected between the engine of vehicle and the vacuum accumulator 1, and connects with the ECU
Connect, for when the negative pressure in the vacuum accumulator 1 is less than a preset value, being inhaled to the vacuum accumulator 1 by engine
Gas is increasing the negative pressure in the vacuum accumulator 1;Normally closed solenoid valve 4, is connected to the vacuum accumulator 1 and is helped with the brake of vehicle
Between power pump, and be connected with the ECU, for when the engine speed is zero, being opened by the control of the ECU so that
Vacuum gas in the vacuum accumulator 1 can enter the brake boost pump 5.Specifically:
The side of the vacuum pressure accumulation control device 3 is connected by first and second pipeline 61,62 with the engine, separately
Side is connected by the 3rd pipeline 63 with the vacuum accumulator 1, and a check valve 631, institute are provided with the 3rd pipeline 63
Check valve 631 is stated for making the gas unidirectional in vacuum accumulator 1 flow in the engine;The brake boost pump 5 passes through
One the 4th pipeline 64 is connected with the vacuum accumulator 1, and the normally closed solenoid valve 4 is on the 4th pipeline 64.
The brake power-assisted safety assisting system also includes one the 5th pipeline 65, and the 5th pipeline 65 is connected to described true
Between empty pressure accumulation control device 3 and the brake boost pump 5, so that when vehicle is in normal driving states, brake the energy of boost pump 5
The vacuum gas of engine interior are enough suctioned out by the vacuum pressure accumulation control device 3 to enable the vehicle to normal brake application.Can be with
Understand, in other examples, the brake boost pump 5 directly can also be connected with the engine, also can directly pass through
5th pipeline 65 is connected with the engine, it is not necessary to be connected with the engine by the vacuum pressure accumulation control device 3.
The vacuum pressure accumulation control device 3 includes a valve element and first and second valve body located at the valve element two ends
31st, 32, described first and second valve body 31,32 is connected in the ECU;When the ECU is detected by the pressure sensor 2
When being less than above-mentioned preset value to the negative pressure in the vacuum accumulator 1, the ECU controls described first valve body, 31 pairs of valve elements
When producing suction, the valve element is moved so that engine is connected with the vacuum accumulator 1 towards the direction of first valve body 31;
When the vacuum accumulator 1 need not increase negative pressure, if vehicle is in driving states, the ECU controls described second
When the valve element of valve body 32 pairs produces suction, the valve element moved towards the direction of second valve body 32 so that the engine with
The brake boost pump 5 is connected;When the engine speed is zero, then the first and the secondth 32 pairs of valve elements of valve body are not
Producing suction, the valve element return makes the engine not connected with the vacuum accumulator 1 and brake boost pump 5.On
State pressure sensor 2 and use MAP pressure sensors(Manifold Absolute Pressure Senser, admission pressure sensing
Device).
It should be understood that in other examples, when the brake boost pump 5 is directly connected or passes through with engine
When 5th pipeline 65 is connected with the engine, vacuum pressure accumulation control device 3 then can only include a valve element and a valve body, described
Valve body is used for low by one in the negative pressure that the vacuum accumulator 1 is detected as the ECU located at one end of the valve element, the valve body
Suction is produced to valve body during preset value, so that the first pipeline 61 and the 3rd pipeline 63 are connected, in this embodiment, the vacuum stores
Pressure control device 3 during unlatching, makes vacuum accumulator 1 be connected with engine equivalent to a switch, engine is extracted vacuum out and stores
Gas in depressor 1, makes the negative pressure in vacuum accumulator 1 reach certain value, to facilitate when when engine accident extinguishing, vacuum
Vacuum gas in accumulator 1 can be supplied to brake boost pump 5 to enable the vehicle to normal brake application.It is also understood that,
In other embodiments, the structure of the vacuum pressure accumulation control device 3 can also have other changes, as long as the vacuum pressure accumulation is controlled
Device 3 can touch on the brake or during throttle in engine rotation and not, opened by the control of ECU.
In the present embodiment, the valve element includes housing 33 and the insert body 34 in the housing 33, described the
One and second valve body 31,32 be respectively arranged on the upper/lower terminal of the housing 33, one end of first and second pipeline 61,62
The side of the housing 33 is connected to, the other end is connected to engine, and one end of the 3rd pipeline 63 is connected to the housing
33 opposite side, the other end of the 3rd pipeline 63 is connected to the vacuum accumulator 1, and one end of the 5th pipeline 65 connects
The opposite side of the housing 33 is connected to, the other end of the 5th pipeline 65 is connected to the brake boost pump 5.
The insert body 34 includes vertically disposed first and second horizontal core 341,342 and vertical is located in first
And the second perpendicular core 343 on horizontal core 341,342, they are integrally formed, when first and second valve body 31,32 is not produced to the valve element
During raw suction, first and second pipeline 61,62 is blocked in the side of two horizontal cores respectively;When first valve body, 31 pairs of valve elements are produced
During raw suction, the insert body 34 is moved up so that first and second pipeline 61,62 is in unplugged state, horizontal positioned at first
Second horizontal core 342 of the lower section of core 341 blocks the 5th pipeline 65 so that first and the connection of the 3rd pipeline 61,63;When second valve
When the valve element of body 32 pairs produces suction, to moving down, the first horizontal core 341 blocks the 3rd pipeline 63 to the insert body 34,
Make second and the connection of the 5th pipeline 62,65.In this example, the upper/lower terminal of the insert body 34 is respectively equipped with a spring 35, uses
In when the first valve body 31 or the second valve body 32 do not produce suction to insert body 34, make the more preferable return of insert body 34.
Rotary regimes are in when the speed of vehicle is not equal to zero, engine(That is CPK sensors(Crankshaft
Position Senser, crankshaft position sensor)The tach signal for detecting is not zero, and for example engine is in 2000r/min
More than)And when TPS is idle signal and brakeless signal, ECU is by the MAP pressure sensors to the vacuum accumulator
Negative pressure in 1 detected, when detect the vacuum accumulator 1 it is weaker when, such as when detecting the vacuum accumulator 1
Negative pressure be less than the in-engine negative pressure when, then ECU control the first valve body 31 produce suction, make insert body 34 upwards move
It is dynamic.When first valve body, 31 pairs of valve elements produce suction, the insert body 34 is moved upwards so that first and second is managed
Road 61,62 is in unplugged state, and the second horizontal core 342 positioned at the lower section of the first horizontal core 341 blocks the 5th pipeline 65 so that first, the
Two and the 3rd pipeline 61,62,63 is connected, and mainly makes first and the connection of the 3rd pipeline 61,63(Refer to Fig. 2), in this condition, institute
State engine from vacuum accumulator 1 suction so that the vacuum accumulator 1 negative pressure increase.In the present embodiment, the ECU is also
Negative pressure value to the vacuum accumulator 1 sets a peak suction value, when the negative pressure in the vacuum accumulator 1 reaches this most
During big negative pressure value, the check valve 631 is closed.
When vehicle is in normal driving states, engine has rotating speed and has brake signal or have TPS to believe for non-idling
Number when, i.e., engine be in non-zero rotary regimes under and have touch on the brake or throttle state when;ECU controls second valve
The valve element of body 32 pairs produces suction so that the insert body 34 is to moving down, and the first horizontal core 341 blocks the 3rd pipeline 63,
Make first, second and the connection of the 5th pipeline 61,62,65, mainly make second and the connection of the 5th pipeline 62,65(Refer to Fig. 3), at this
Under state, brake boost pump 5 passes through engine suction to enable the vehicle to normal brake application.
When engine is in flameout state, ECU does not control first and second valve body 31,32, i.e. first and second valve body
31st, 32 suction can not be produced to the insert body 34, the side of first and second horizontal core 341,342 blocks first and the respectively
Two pipelines 61,62, and the 3rd and the 5th pipeline 63,65 is not blocked then by the pipeline(Refer to Fig. 1), in this condition, it is located at
Brake boost pump 5 on 4th pipeline 64 is opened, and brake boost pump 5 is obtained by the 4th pipeline 64 from the vacuum accumulator 11
Vacuum is so that the vehicle being capable of normal brake application.
In the present embodiment, Equilibrium vacuum effect during in order to keep the vacuum pressure accumulation control device 3 to open up or down
In the power of valve element upper and lower surface, be additionally provided with the 6th and the 7th pipeline 66,67, they respectively with described first and second pipeline
61st, 62 simultaneously example setting, the i.e. first end of the 6th and the 7th pipeline 66,67 is connected with vacuum pressure accumulation control device 3 and is located at respectively
On first pipeline 61 and under second pipe 62, the second end is connected with the engine.6th and the 7th pipeline 66,67
It is mainly used in playing a balanced action to the gas in the vacuum pressure accumulation control device 3.When insert body 34 is moved up
When, the first pipeline 61 is connected with the 3rd pipeline 63, and under second pipe 62, the 7th pipeline 67 and vacuum pressure accumulation control device 3
End connection, the 6th pipeline 66 is connected with the upper end of vacuum pressure accumulation control device 3, because the six, the 7th, second pipe 62 is all in even
Logical state, now the pressure of three is identical, but the power for acting on valve body upper and lower surface is identical in opposite direction, and this part power is supported
Disappear, do not interfere with magnetic valve unlatching.
Of the prior art, engine misses rear braking braking cisco unity malfunction, when vehicle is when going up a slope flame-out, drives
Member may not step on brake to die because vacuum servo is lost, then vehicle is possible to bump against vehicle below to downslide.
And the brake power-assisted safety assisting system of the present embodiment, after engine misses, ECU control normally closed solenoid valves 4 are opened, and make brake
Boost pump 5 directly can obtain suction to enable the vehicle to normal brake application by vacuum accumulator 1, increased personal safety, car
Safety, reduces the incidence of traffic accident.
Embodiments of the present invention are these are only, the scope of the claims of the invention is not thereby limited, it is every using the present invention
Equivalent structure or equivalent flow conversion that specification and accompanying drawing content are made, or directly or indirectly it is used in other related technologies
Field, is included within the scope of the present invention.
Claims (3)
1. a kind of brake power-assisted safety assisting system, including:
Vacuum accumulator, which is provided with a pressure sensor, and the pressure sensor is connected with the ECU of vehicle, described for gathering
Negative pressure signal in vacuum accumulator is simultaneously transferred to the ECU;
Vacuum pressure accumulation control device, is connected between the engine of vehicle and the vacuum accumulator, and is connected with the ECU,
For when the negative pressure in the vacuum accumulator is less than a preset value, by engine to the vacuum accumulator air-breathing increasing
Plus the negative pressure in the vacuum accumulator;
Normally closed solenoid valve, is connected between the vacuum accumulator and the brake boost pump of vehicle, and is connected with the ECU, is used for
When the engine speed is zero, the vacuum gas energy so that in the vacuum accumulator is opened by the control of the ECU
Enough enter the brake boost pump;The side of the vacuum pressure accumulation control device passes through first and second pipeline and the engine
Connection, opposite side is connected by the 3rd pipeline with the vacuum accumulator, and a check valve is provided with the 3rd pipeline, described
Check valve is used to make the gas unidirectional in vacuum accumulator flow in the engine;The brake boost pump is by one the 4th pipe
Road is connected with the vacuum accumulator, and the normally closed solenoid valve is on the 4th pipeline;Also include one the 5th pipeline, it is described
5th pipeline is connected between the vacuum pressure accumulation control device and the brake boost pump, and engine misses are in when vehicle
Driving states when, brake boost pump can be enabled the vehicle to using the vacuum gas inside vacuum accumulator by the 5th pipeline
Enough normal brake applications;The vacuum pressure accumulation control device includes a valve element and first and second valve located at the valve element two ends
Body, described first and second valve body is connected in the ECU;
Be not zero when the speed of vehicle is not equal to zero, engine speed, and TPS be idle signal and brakeless signal when, institute
When stating ECU and detecting negative pressure in the vacuum accumulator by the pressure sensor and be less than above-mentioned preset value, the ECU controls
When making first valve body to valve element generation suction, the valve element is moved so that engine towards the direction of first valve body
Connected with the vacuum accumulator;
If vehicle is in normal driving states, when the ECU controls second valve body to produce suction to the valve element, institute
Valve element is stated to be moved towards the direction of second valve body so that the engine is connected with the brake boost pump;
When the engine speed is zero, then the first and the secondth valve body does not produce suction, the valve element to the valve element
Return, makes the engine not connected with the vacuum accumulator and brake boost pump.
2. brake power-assisted safety assisting system as claimed in claim 1, it is characterised in that:The valve element includes housing and sets
Insert body in the housing, described first and second valve body is respectively arranged on the upper/lower terminal of the housing, described first
And one end of second pipe is connected to the side of the housing, the other end is connected to engine, and one end of the 3rd pipeline connects
The opposite side of the housing is connected to, the other end of the 3rd pipeline is connected to the vacuum accumulator, the 5th pipeline
One end is connected to the opposite side of the housing, and the other end of the 5th pipeline is connected to the brake boost pump;
The insert body includes vertically disposed first and second horizontal core and vertical is located on first and second horizontal core
Perpendicular core, when first and second valve body not to the valve element produce suction when, first and second is blocked in the side of two horizontal cores respectively
Pipeline;When first valve body produces suction to the valve element, the insert body is moved up so that first and second is managed
Road is in unplugged state, and the second horizontal core below the first horizontal core blocks the 5th pipeline so that first and the 3rd pipeline communication;
When second valve body produces suction to the valve element, to moving down, the first horizontal core blocks the 3rd pipe to the insert body
Road, makes second and the 5th pipeline communication.
3. safety assisting system as claimed in claim 1 or 2, it is characterised in that:Also include the 6th and the 7th pipeline, described the
Six and the 7th pipe is set up in parallel with described first and second pipeline respectively, and the 6th and the 7th pipeline is located at described first respectively
On pipeline, under second pipe.
Priority Applications (1)
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CN201510097617.4A CN104760584B (en) | 2015-03-05 | 2015-03-05 | Brake power-assisted safety assisting system |
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CN201510097617.4A CN104760584B (en) | 2015-03-05 | 2015-03-05 | Brake power-assisted safety assisting system |
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CN104760584A CN104760584A (en) | 2015-07-08 |
CN104760584B true CN104760584B (en) | 2017-06-06 |
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CN106347336B (en) * | 2016-11-14 | 2019-04-09 | 安徽格瑞卡新能源科技有限公司 | A kind of intelligent automobile brake assist system |
CN112519742B (en) * | 2019-09-17 | 2022-01-07 | 比亚迪股份有限公司 | Vehicle brake boosting control system and method, storage medium and vehicle |
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