CN109572649A - A kind of Motorized vacuum apparatus for controlling pump adapting to plateau and plains region - Google Patents
A kind of Motorized vacuum apparatus for controlling pump adapting to plateau and plains region Download PDFInfo
- Publication number
- CN109572649A CN109572649A CN201811652592.XA CN201811652592A CN109572649A CN 109572649 A CN109572649 A CN 109572649A CN 201811652592 A CN201811652592 A CN 201811652592A CN 109572649 A CN109572649 A CN 109572649A
- Authority
- CN
- China
- Prior art keywords
- cavity
- shell
- vacuum
- absolute pressure
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012528 membrane Substances 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000000741 silica gel Substances 0.000 claims abstract description 7
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 7
- 239000003292 glue Substances 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 230000006978 adaptation Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/02—Arrangements of pumps or compressors, or control devices therefor
Abstract
The present invention relates to a kind of Motorized vacuum apparatus for controlling pump for adapting to plateau and plains region, belong to automobile energy assisted braking system field, one end of shell is connect with connector, it is clamped above cover board and shell, the cavity B communicated with vacuum booster is arranged at the bottom of shell, the cavity A communicated with controller outside is arranged at the lower part of shell, there is waterproof ventilated membrane at the hole that cavity A is communicated with the outside world, circuit board is fixedly connected with circuit panel seat, the inner end of electric appliance connecting contact pin and circuit board electrical connection, it is fixedly connected below absolute pressure vacuum transducer one and circuit board, it is fixedly connected below absolute pressure vacuum transducer two and circuit board, there is silica gel sealing pad two between cavity B and absolute pressure vacuum transducer two.Advantage is structure novel, is a kind of adaptation plateau, plains region Motorized vacuum apparatus for controlling pump, can be realized and accurately control in Plain and highlands vacuum pump, improves braking reliability, comfort.
Description
Technical field
The invention belongs to automobile energy assisted braking system fields, and it is electronic to be suitable for new-energy automobile, small displacement turbocharging band
The automobile force aid system of vacuum pump.
Background technique
With the development of automobile industry, energy conservation, emission reduction become automobile mainstream development direction, and electric vehicle, hybrid electric vehicle
Become main development object with small displacement turbocharging vehicle.Energy conservation, emission reduction key are replacement new energy as power source or reduction
Engine displacement achievees the purpose that energy conservation, emission reduction to reduce exhaust emissions amount.Present electric vehicle, mixed motor-car and small displacement whirlpool
Wheel supercharging vehicle structure and layout all change, and automobile brake force aid system structure and performance are influenced, in order to solve brake boost
Problem increases electric vacuum pump and improves force aid system for braking performance, so becoming key technology to electric vacuum pump control, especially
Its highlands air pressure reduces, and atmospheric pressure reduces, and electric vehicle, small displacement band turbocharging automobile, force aid system vacuum degree reduce,
Cause braking ability to reduce, at this moment need to control vacuum pump work by controller for vacuum pump, is improved to vacuum boost system true
Reciprocal of duty cycle increases vacuum boost system performance, improves braking ability and brake pedal sense, so controller for vacuum pump becomes crucial skill
Art.
Controller for vacuum pump detects vacuum degree using vacuum sensor at present, be unable to satisfy and meanwhile survey vacuum degree with
Ambient pressure, this controller architecture be easy to cause vacuum pump to burn out or brake feel in highlands leads to braking ability firmly partially
Decline, such as differential pressure type vacuum sensor are reduced in highlands braking ability, and braking feel is hard, and absolute pressure type vacuum senses
Device is easy to burn out vacuum pump in highlands.
Summary of the invention
The present invention provides a kind of Motorized vacuum apparatus for controlling pump for adapting to plateau and plains region, to solve to sentence at present
Disconnected is in plains region or highlands, and be easy to cause vacuum pump to burn out or brake feel partially causes braking ability to decline firmly
Problem.
The technical solution adopted by the present invention is that: one end of shell is connect with connector, is clamped above cover board and shell, shell
The cavity B communicated with vacuum booster is arranged at bottom, and the cavity A communicated with controller outside, cavity A and chamber are arranged at the lower part of shell
Body B is not communicated with, and has waterproof ventilated membrane, the shell at fixed waterproof ventilated membrane deck and the hole at the hole that cavity A is communicated with the outside world
Body clamping, so that waterproof ventilated membrane be fixed, circuit panel seat is fixedly connected with the bottom surface of shell, and circuit board is fixed with circuit panel seat
Connection, the inner end and circuit board electrical connection, outer end of electric appliance connecting contact pin are located in connector, absolute pressure vacuum transducer one and circuit board
Lower section is fixedly connected, and has silica gel sealing pad one, absolute pressure vacuum transducer two and electricity between cavity A and absolute pressure vacuum transducer one
It is fixedly connected below the plate of road, there is silica gel sealing pad two between cavity B and absolute pressure vacuum transducer two.
The electric appliance connecting contact pin includes power supply connector, ground wire connector, vacuum pump anode interface, and vacuum pump cathode connects
Mouthful.
It is an advantage of the invention that structure novel, measures external atmosphere pressure using vacuum absolute pressure sensor, identifies it is plateau
Or Plain starts to work or stops working for accurately controlling vacuum pump, improves service life of vacuum pump, increases braking ability, prevents
Only there is controller in highlands or vacuum pump is burnt out, or braking feel is partially hard, braking ability decline, is that a kind of adaptation is high
Former, plains region Motorized vacuum apparatus for controlling pump, can be realized and accurately control in Plain and highlands vacuum pump, improve system
Dynamic reliability, comfort.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the portion the I enlarged drawing of Fig. 1；
Fig. 3 is the left view of Fig. 1.
Specific embodiment
One end of shell 11 is connect with connector 1, is clamped above cover board 3 and shell 11, the bottom of shell 11 has to be helped with vacuum
The cavity A1101 communicated with controller outside, cavity A1101 and chamber are arranged at the cavity B1102 that power device communicates, the lower part of shell 11
Body B1102 is not communicated with, and has waterproof ventilated membrane 10, fixed waterproof ventilated membrane card at the hole that cavity A1101 is communicated with the outside world 1103
Seat 9 is clamped with the shell 11 at the hole, so that waterproof ventilated membrane 10 is fixed, the bottom surface of circuit panel seat 8 and shell 11 is fixed to be connected
It connects, circuit board 4 is fixedly connected with circuit panel seat 8, and the inner end of electric appliance connecting contact pin 2 is electrically connected with circuit board 4, outer end is located at connector
In 1, it is fixedly connected below absolute pressure vacuum transducer 1 and circuit board 4, between cavity A1101 and absolute pressure vacuum transducer 1
There is silica gel sealing pad 1, is fixedly connected below absolute pressure vacuum transducer 27 and circuit board 4, in cavity B1102 and absolute pressure vacuum
There is silica gel sealing pad 2 12 between sensor 27.
The electric appliance connecting contact pin 2 include power supply connector 201, ground wire connector 202, vacuum pump anode interface 203, very
Sky pump cathode interface 204.
Working principle,
Connector 1 is connected into vacuum pump and power supply, the gas of outside enters cavity A by waterproof ventilated membrane 10, passes through vacuum
Absolute pressure sensor one detects road cavity A air pressure i.e. external atmosphere pressure, can thus identify height above sea level, judgement is Plain
Or uplift plateau, silica gel sealing pad one guarantee vacuum absolute pressure sensor contact surface leakproofness, prevent one He of absolute pressure vacuum transducer
Absolute pressure vacuum transducer two be connected, waterproof ventilated membrane effect be exactly prevent water from entering cavity A to burn out vacuum absolute pressure sensor one, but
It is that gas can be bidirectionally conductive, guarantees that vacuum absolute pressure sensor one can accurately measure ambient pressure；Vacuum absolute pressure sensor two-way
The vacuum degree of cavity B detection vacuum booster is crossed, cavity A, cavity B are independently of each other, are not turned on；
After powering on, hardware and various state initializations are initialized, is detected outside controller by absolute pressure vacuum transducer one
Atmospheric pressure, whether interpretation outside atmosphere be more than or equal to 90kpa, if it is larger than or equal to 90kpa, illustrate approximate plains region, into
Enter Plain scheme control vacuum pump, by absolute pressure vacuum transducer two, detects vacuum booster air pressure, its pressure control is made to exist
Between 30kpa to 50kpa, if not between 30kpa to 50kpa, vacuum pump work；If outside air pressure is less than 90kpa, say
Bright approximation highlands, controls vacuum pump into altitude mode, by absolute pressure vacuum transducer two, detects vacuum booster gas
Pressure controls between 35kpa to 60kpa, if not between 35kpa to 60kpa, vacuum pump work can reduce hair in this way
Motivation power consumption increases automobile brake effect, promotes braking feel.
Claims (2)
1. a kind of Motorized vacuum apparatus for controlling pump for adapting to plateau and plains region, one end of shell connect with connector, cover board and
Clamping above shell, it is characterised in that: the cavity B communicated with vacuum booster is arranged at the bottom of shell, and the lower part of shell has and controls
The cavity A, cavity A and cavity B communicated outside device processed is not communicated with, and has waterproof ventilated membrane at the hole that cavity A is communicated with the outside world,
Shell at fixed waterproof ventilated membrane deck and the hole is clamped, to waterproof ventilated membrane be fixed, the bottom of circuit panel seat and shell
Face is fixedly connected, and circuit board is fixedly connected with circuit panel seat, and inner end and circuit board electrical connection, the outer end of electric appliance connecting contact pin are located at
In connector, it is fixedly connected below absolute pressure vacuum transducer one and circuit board, has silicon between cavity A and absolute pressure vacuum transducer one
It is fixedly connected below glue gasket one, absolute pressure vacuum transducer two and circuit board, between cavity B and absolute pressure vacuum transducer two
There is silica gel sealing pad two.
2. a kind of Motorized vacuum apparatus for controlling pump for adapting to plateau and plains region according to claim 1, feature exist
In: the electric appliance connecting contact pin includes power supply connector, ground wire connector, vacuum pump anode interface, vacuum pump cathode interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811652592.XA CN109572649B (en) | 2018-12-30 | 2018-12-30 | Electric vacuum pump control device suitable for plateau and plateau areas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811652592.XA CN109572649B (en) | 2018-12-30 | 2018-12-30 | Electric vacuum pump control device suitable for plateau and plateau areas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109572649A true CN109572649A (en) | 2019-04-05 |
| CN109572649B CN109572649B (en) | 2023-10-24 |
Family
ID=65915644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811652592.XA Active CN109572649B (en) | 2018-12-30 | 2018-12-30 | Electric vacuum pump control device suitable for plateau and plateau areas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109572649B (en) |
Citations (30)
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|---|---|---|---|---|
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| EP0049955A1 (en) * | 1980-10-09 | 1982-04-21 | General Motors Corporation | Dual cavity pressure sensor |
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| CN109572649B (en) | 2023-10-24 |
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