CN207374360U - A kind of gas brake electric car inflates apparatus for controlling pump - Google Patents
A kind of gas brake electric car inflates apparatus for controlling pump Download PDFInfo
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- CN207374360U CN207374360U CN201721505675.7U CN201721505675U CN207374360U CN 207374360 U CN207374360 U CN 207374360U CN 201721505675 U CN201721505675 U CN 201721505675U CN 207374360 U CN207374360 U CN 207374360U
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- pump
- vcu
- baroceptor
- inflates
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Abstract
Apparatus for controlling pump is inflated the utility model discloses a kind of gas brake electric car, is related to apparatus for controlling pump field of inflating；It includes air accumulator group, for storing gas in air braking system；Baroceptor group, for detecting the barometric information of air accumulator group；VCU inflates pump unit for carrying out seeking poor, summation operation to barometric information and judging whether air pressure stablizes to control；Pump unit is inflated, for controlling the shutdown of electric inflation pump and start；Power supply, for providing power supply for VCU and providing electrical source of power to inflate pump unit；The utility model is by detecting atmospheric pressure value; VCU is timed the downtime that computing accurately controls inflating pump; ensure optimal drier evacuation time, solve the problems, such as the inflating pump control that air pressure fluctuation caused by existing drier exhaust drop off pressure, mechanical pressure regulation error is brought.
Description
Technical field
The utility model is related to inflate apparatus for controlling pump field, especially a kind of gas brake electric car inflates apparatus for controlling pump.
Background technology
The braking system of gas brake electric car is the replacement electronics inflating pump on the basis of original fuel vehicle at present, in order to save
Electric energy, by the start-stop of other electronic device test systems pressure control inflating pumps；When air pressure is less than lowest threshold, inflating pump work
Make, when air pressure is higher than lowest threshold, inflating pump stops (or delay stops)；Using current control mode, since gas is braked
Drier in system needs that blowback certain time (process is with system gas drops) is exhausted, and causes highest threshold value
Size and the bad control of delay time, be easy to cause drier blowback time not enough either not blowback or blowback overlong time
Cause waste of energy；Existing apparatus is likely to occur drier prerelease, causes pressure that can not rise, what inflating pump worked always
Phenomenon；The threshold value that drier starts exhaust is mechanical pressure regulation, error is easily caused, in addition influence and sea of the environment temperature to pressure
Larger variation even sensor accuracy is pulled out, can all cause the fluctuation of pressure at expulsion, further cause pressure when being stopped
The definite difficulty of threshold size.
So a kind of gas brake electric car is needed to inflate, apparatus for controlling pump neglects drier exhaust drop off pressure, mechanical pressure regulation misses
Air pressure fluctuation caused by difference, environment temperature, altitude change so as to accurately control inflating pump downtime, and ensures optimal dry
Dry device evacuation time.
Utility model content
The purpose of this utility model is that：The utility model provides a kind of gas brake electric car and inflates apparatus for controlling pump, solution
What air pressure fluctuation caused by existing drier exhaust drop off pressure, mechanical pressure regulation error, environment temperature, altitude change of having determined was brought inflates
The problem of pump control.
The technical solution adopted in the utility model is as follows：
A kind of gas brake electric car inflates apparatus for controlling pump, including air accumulator group, baroceptor group, VCU, pump unit of inflating
And power supply；
Air accumulator group, for storing gas in air braking system；
Baroceptor group, for detecting the barometric information of air accumulator group；
VCU, for carrying out seeking poor, summation operation to barometric information and judging whether air pressure stablizes to control inflating pump list
Member；
Pump unit is inflated, for controlling the shutdown of electric inflation pump and start；
Power supply, for providing power supply for VCU and providing electrical source of power to inflate pump unit.
Preferably, the air accumulator group includes air accumulator one and air accumulator two.
Preferably, the baroceptor group includes baroceptor one and baroceptor two；The power supply includes storing
Battery and electrical source of power；The baroceptor one and baroceptor two are electrically connected respectively with VCU, the accumulator with
VCU is electrically connected, the electrical source of power and pump unit electric connection of inflating.
Preferably, the pump unit of inflating includes electric inflation pump and DCAC, the electric inflation pump, DCAC and power electric
Source is sequentially electrically connected, and the VCU is electrically connected with DCAC low-voltage signals end.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are：
1. the utility model is timed the downtime that computing accurately controls inflating pump by detecting atmospheric pressure value, VCU, protect
Optimal drier evacuation time is demonstrate,proved, solves existing drier exhaust drop off pressure, mechanical pressure regulation error, environment temperature, altitude change
The problem of inflating pump control that caused air pressure fluctuation is brought, has reached the downtime of accurate control inflating pump, has ensured optimal
The effect of drier evacuation time；
2. the utility model takes atmospheric pressure value to be handled by VCU timings, the blowback time is controlled, further promotes accurate control
The downtime of inflating pump processed；
3. the VCU processing of the utility model is used as control in view of the error of baroceptor using accumulative draught head P
Condition so as to ignore sensor error, further improves the accuracy of control inflating pump.
Description of the drawings
The utility model will illustrate by example and with reference to the appended drawing, wherein：
Fig. 1 is the system block diagram of the utility model；
Fig. 2 is the design sketch under the utility model inflation disturbed condition；
Fig. 3 is the design sketch under prior art inflation disturbed condition.
Specific embodiment
All features or disclosed all methods disclosed in this specification or in the process the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
It elaborates with reference to Fig. 1-3 pairs of the utility model.
Embodiment 1
A kind of gas brake electric car inflates apparatus for controlling pump, including air accumulator group, baroceptor group, VCU, pump unit of inflating
And power supply；
Air accumulator group, for storing gas in air braking system；
Baroceptor group, for detecting the barometric information of air accumulator group；
VCU, for carrying out seeking poor, summation operation to barometric information and judging whether air pressure stablizes to control inflating pump list
Member；
Pump unit is inflated, for controlling the shutdown of electric inflation pump and start；
Power supply, for providing power supply for VCU and providing electrical source of power to inflate pump unit.
Air accumulator group includes air accumulator one and air accumulator two.
Baroceptor group includes baroceptor one and baroceptor two；Power supply includes accumulator and electrical source of power；
Baroceptor one and baroceptor two are electrically connected respectively with VCU, and accumulator is electrically connected with VCU, and electrical source of power is with beating
Air pump unit is electrically connected.
Pump unit of inflating includes electric inflation pump and DCAC, and electric inflation pump, DCAC and electrical source of power are sequentially electrically connected,
VCU is electrically connected with DCAC low-voltage signals end.
Circuit theory：A kind of gas brake electric car inflates apparatus for controlling pump, including air accumulator group, baroceptor group, VCU,
Inflate pump unit and power supply；Baroceptor group, VCU and pump unit of inflating sequentially are electrically connected, and baroceptor is arranged on storage
In gas tank；Power supply includes accumulator and electrical source of power, and accumulator and VCU are electrically connected, and electrical source of power is electrical with inflating pump unit
Connection；Air accumulator group includes air accumulator one and air accumulator two, and baroceptor group includes baroceptor one and baroceptor
Two；Baroceptor one and baroceptor two are electrically connected respectively with VCU, pump unit of inflating include electric inflation pump and
DCAC, electric inflation pump, DCAC and electrical source of power are sequentially electrically connected, and VCU is electrically connected with DCAC low-voltage signals end；Detect key
ON grades of signals of spoon judge whether, in open state, if in open state, to pass through baroceptor one and baroceptor two
Whether the air pressure of detection air accumulator one and air accumulator two is less than lowest threshold, that is, 0.60MPa of baric systerm, and for 1 seconds；Then
It is enabled by electric signal or CAN signal and inflates pump work and be inflated, VCU has embedded chip, includes control logic, timing
All logic units such as device, memory, calculator, VCU are timed by timer, and an atmospheric pressure value is taken every timing,
Such as 1.5s, poor is asked to adjacent atmospheric pressure value twice, then the difference summation to last five times obtains accumulative draught head P, if accumulative gas
The absolute value of pressure difference P is less than control threshold (being determined according to baroceptor precision), such as 0.02MPa, then illustrates stable gas pressure,
Start-up study shuts down 20s (braking system drier blowback time requirement is 15s, to ensure that drier performance value is 20s), phase
Between need consider driver touch on the brake with gas it is more cause air pressure be less than 0.6MPa possibility, If this happens then
It does not shut down, it is necessary to which air pump works on inflates, until being full of；Inflating pump is enabled after stable gas pressure to be stopped and return to detection gas
Pressure ring section cycle is (in order to ensure in driving conditions air pressure in allowed band, it is necessary to detecting system air pressure always and in air pressure
Start inflating pump inflation when low).
Effect is as Figure 2-3：Mark represents fluctuation caused by various interference at mark and second at first in Fig. 2, the
Mark represents drier blowback at three, the everywhere mark represent the appearance of stable gas pressure signal, inflating pump delay is shut down；Using existing
Ideally inflating pump starts threshold value as 0.6MPa to technology, starts and shuts down the threshold value of delay as 0.78MPa, actually there is interference feelings
Effect under condition is unable to reach halt condition, inflating pump as shown in figure 3, system maximum pressure is shown in figure at mark for 0.765MPa
It works always；Air pressure specific size need not be considered by control strategy of the present invention, inflated by judging whether air pressure stablizes to be used as
The condition whether shut down is pumped, from the influence of environmental factor or air pressure device, realizes accurate control inflating pump；The utility model
By detecting atmospheric pressure value, VCU carries out the downtime that computing accurately controls inflating pump, ensures optimal drier evacuation time, solves
What air pressure fluctuation caused by existing drier exhaust drop off pressure, mechanical pressure regulation error, environment temperature, altitude change of having determined was brought inflates
The problem of pump control, has reached the downtime of accurate control inflating pump, ensures the effect of optimal drier evacuation time.
Claims (4)
1. a kind of gas brake electric car inflates apparatus for controlling pump, it is characterised in that：Including air accumulator group, baroceptor group, VCU,
Inflate pump unit and power supply；
Air accumulator group, for storing gas in air braking system；
Baroceptor group, for detecting the barometric information of air accumulator group；
VCU inflates pump unit for carrying out seeking poor, summation operation to barometric information and judging whether air pressure stablizes to control；
Pump unit is inflated, for controlling the shutdown of electric inflation pump and start；
Power supply, for providing power supply for VCU and providing electrical source of power to inflate pump unit.
2. a kind of gas brake electric car according to claim 1 inflates apparatus for controlling pump, it is characterised in that：The air accumulator group
Including air accumulator one and air accumulator two.
3. a kind of gas brake electric car according to claim 2 inflates apparatus for controlling pump, it is characterised in that：The air pressure sensing
Device group includes baroceptor one and baroceptor two；The power supply includes accumulator and electrical source of power；The air pressure sensing
Device one and baroceptor two are electrically connected respectively with VCU, and the accumulator is electrically connected with VCU, and the electrical source of power is with beating
Air pump unit is electrically connected.
4. a kind of gas brake electric car according to claim 3 inflates apparatus for controlling pump, it is characterised in that：The inflating pump list
Member includes electric inflation pump and DCAC, and the electric inflation pump, DCAC and electrical source of power be sequentially electrically connected, the VCU with
DCAC low-voltage signals end is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721505675.7U CN207374360U (en) | 2017-11-13 | 2017-11-13 | A kind of gas brake electric car inflates apparatus for controlling pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721505675.7U CN207374360U (en) | 2017-11-13 | 2017-11-13 | A kind of gas brake electric car inflates apparatus for controlling pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207374360U true CN207374360U (en) | 2018-05-18 |
Family
ID=62332994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721505675.7U Active CN207374360U (en) | 2017-11-13 | 2017-11-13 | A kind of gas brake electric car inflates apparatus for controlling pump |
Country Status (1)
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| CN (1) | CN207374360U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107813807A (en) * | 2017-11-13 | 2018-03-20 | 四川江淮汽车有限公司 | A kind of gas brake electric car inflating pump control method and device |
| CN110758287A (en) * | 2019-10-25 | 2020-02-07 | 湖南行必达网联科技有限公司 | Emergency system for abnormal flameout of vehicle |
| CN111422177A (en) * | 2020-03-13 | 2020-07-17 | 北汽福田汽车股份有限公司 | Power assist system for vehicle, control method for power assist system, and vehicle |
-
2017
- 2017-11-13 CN CN201721505675.7U patent/CN207374360U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107813807A (en) * | 2017-11-13 | 2018-03-20 | 四川江淮汽车有限公司 | A kind of gas brake electric car inflating pump control method and device |
| CN107813807B (en) * | 2017-11-13 | 2024-02-06 | 四川江淮汽车有限公司 | Method and device for controlling air pump of air brake electric vehicle |
| CN110758287A (en) * | 2019-10-25 | 2020-02-07 | 湖南行必达网联科技有限公司 | Emergency system for abnormal flameout of vehicle |
| CN111422177A (en) * | 2020-03-13 | 2020-07-17 | 北汽福田汽车股份有限公司 | Power assist system for vehicle, control method for power assist system, and vehicle |
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