CN109177961A - A kind of pneumatic control system and control method of plug-in hybrid passenger car - Google Patents
A kind of pneumatic control system and control method of plug-in hybrid passenger car Download PDFInfo
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- CN109177961A CN109177961A CN201811052339.0A CN201811052339A CN109177961A CN 109177961 A CN109177961 A CN 109177961A CN 201811052339 A CN201811052339 A CN 201811052339A CN 109177961 A CN109177961 A CN 109177961A
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- atmospheric pressure
- threshold value
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- load
- drier
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000001939 inductive effect Effects 0.000 claims abstract description 21
- 239000002808 molecular sieve Substances 0.000 claims abstract description 13
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 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
- B60T17/002—Air treatment devices
- B60T17/004—Draining and drying devices
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hybrid Electric Vehicles (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a kind of pneumatic control system of plug-in hybrid passenger car and control methods.Wherein, the pneumatic control system of plug-in hybrid passenger car, including off-load inductive switch open in usual, installation is on the dryer；When drier off-load, off-load inductive switch closure open in usual exports efficient drying device off-load signal and is sent to entire car controller；Entire car controller is configured as: receiving two-way atmospheric pressure value in double-loop air braking system；Respectively engine start is immediately controlled, to inflate to pipeline when there is any road atmospheric pressure value lower than first pressure threshold value with first pressure threshold value comparison in two-way atmospheric pressure value；After engine start, in the effective situation of drier off-load signal, by two-way atmospheric pressure value respectively with second pressure threshold value comparison, when two-way atmospheric pressure value is above second pressure threshold value, pipeline is continued as after control engine delay operation preset time to inflate, so that drier continues off-load, the moisture that molecular sieve adsorbs sufficiently is discharged.
Description
Technical field
The invention belongs to the air pressure controls of the control field of integral new-energy passenger more particularly to a kind of plug-in hybrid passenger car
System and control method processed.
Background technique
Currently, the braking system of car generally uses double-loop air braking system.Plug-in hybrid passenger car is generally not
It is equipped with electric inflation pump, compressed air derives from the mechanical inflating pump that engine body carries, as long as its main feature is that engine is transported
Turn, inflating pump just works always, carries out off-load by the drier being installed on the pipeline, adsorbs molecular sieve during off-load
Condensed water discharge pipe road, avoid winter pipeline icing cause braking ability decline or brake fade.
In general, when plug-in hybrid passenger car is run under pure power mode, if air pressure is lower than setting value, full-vehicle control
Device can control engine start and be inflated, it is ensured that atmospheric pressure value meets vehicle driving requirements.When air pressure reaches setting value, vehicle
Controller allows engine to shut down.The off-load switch of the drier used on car is mechanically that error range is larger entirely substantially,
Sometimes entire car controller just controls engine and shuts down before drier off-load.Drier can not off-load, molecular sieve absorption
Condensed water can not be discharged, and take care of the pence, and influence braking ability, be easy to produce security risk.
Summary of the invention
In order to solve the deficiencies in the prior art, the first object of the present invention is to provide a kind of plug-in hybrid passenger car
Pneumatic control system, can inflate each time process can all guarantee drier carry out off-load operation, so that molecular sieve be adsorbed
Condensed water be sufficiently discharged, improve plug-in hybrid passenger car air-pressure brake safety and reliability.
A kind of pneumatic control system of plug-in hybrid passenger car of the invention, comprising:
Off-load inductive switch open in usual, installation is on the dryer；When drier off-load, off-load inductive switch open in usual
Closure exports efficient drying device off-load signal and is sent to entire car controller；
The entire car controller, is configured as:
Receive two-way atmospheric pressure value in double-loop air braking system；
By two-way atmospheric pressure value respectively with first pressure threshold value comparison, it is lower than first pressure threshold value when there is any road atmospheric pressure value
When, engine start is immediately controlled, to inflate to pipeline；
After engine start, in the effective situation of drier off-load signal, two-way atmospheric pressure value is pressed with second respectively
Force threshold compares, and when two-way atmospheric pressure value is above second pressure threshold value, continues after control engine delay operation preset time
It inflates for pipeline, so that drier continues off-load, the moisture that molecular sieve adsorbs sufficiently is discharged；Wherein, first pressure threshold value is small
In second pressure threshold value.
Further, the entire car controller, is also configured to
By two-way atmospheric pressure value respectively with first pressure threshold value comparison during, when two-way atmospheric pressure value is above the first pressure
When force threshold, engine is allowed to shut down.
When two-way atmospheric pressure value is above first pressure threshold value, illustrate that air pressure has reached preset requirement, then engine can
Not inflate to pipeline, reduce the energy consumption of engine in this way.
Further, the entire car controller, is also configured to
After engine start, in the effective situation of drier off-load signal, when any value is not high in two-way atmospheric pressure value
When second pressure threshold value, control engine does not allow to shut down.
The present invention can actively judge whether drier off-load inductive switch goes out by increasing secondary air pressure judgment step
When existing adhesion fault, do not allow to shut down when air pressure is not up to setting value just in case adhesion fault occur also and can control engine,
The safety and reliability of plug-in hybrid passenger car air-pressure brake is improved again.
Further, the entire car controller, is also configured to
While controlling engine does not allow to shut down, off-load inductive switch failure open in usual is sent to CAN bus instrument
Information reminds driver to check drier in time.
Further, the entire car controller is connected with baroceptor, and the baroceptor is for detecting double loop
Two-way atmospheric pressure value in air braking system.
Further, efficient drying device off-load signal is passed to vehicle control by physical cord by off-load inductive switch open in usual
Device processed.
The second object of the present invention is to provide a kind of control of pneumatic control system based on plug-in hybrid passenger car
Method.
A kind of control method of pneumatic control system based on plug-in hybrid passenger car of the invention, this method are applicable in
In entire car controller, comprising:
Receive two-way atmospheric pressure value in double-loop air braking system；
By two-way atmospheric pressure value respectively with first pressure threshold value comparison, it is lower than first pressure threshold value when there is any road atmospheric pressure value
When, engine start is immediately controlled, to inflate to pipeline；
After engine start, in the effective situation of drier off-load signal, two-way atmospheric pressure value is pressed with second respectively
Force threshold compares, and when two-way atmospheric pressure value is above second pressure threshold value, continues after control engine delay operation preset time
It inflates for pipeline, so that drier continues off-load, the moisture that molecular sieve adsorbs sufficiently is discharged；Wherein, first pressure threshold value is small
In second pressure threshold value.
Further, by two-way atmospheric pressure value respectively with first pressure threshold value comparison during, when two-way atmospheric pressure value is equal
When higher than first pressure threshold value, engine is allowed to shut down.
Further, after engine start, in the effective situation of drier off-load signal, when in two-way atmospheric pressure value
When one value is not higher than second pressure threshold value, control engine does not allow to shut down.
Further, while controlling engine does not allow to shut down, off-load induction open in usual is sent to CAN bus instrument
Switch fault information reminds driver to check drier in time.
Compared with prior art, the beneficial effects of the present invention are:
(1) present invention inflate each time process can all guarantee drier carry out off-load operation, so that molecular sieve be adsorbed
Condensed water be sufficiently discharged, improve the safety and reliability of plug-in hybrid passenger car air-pressure brake；
(2) present invention can actively judge that drier off-load inductive switch is by increasing secondary air pressure judgment step
It is not no when there is adhesion fault, do not allow to stop when air pressure is not up to setting value just in case adhesion fault occur also and can control engine
Machine improves the safety and reliability of plug-in hybrid passenger car air-pressure brake again.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is a kind of pneumatic control system structural schematic diagram based on plug-in hybrid passenger car of the invention.
Fig. 2 is a kind of control method flow chart of pneumatic control system based on plug-in hybrid passenger car.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
A kind of pneumatic control system of plug-in hybrid passenger car of the invention, comprising:
Off-load inductive switch open in usual, installation is on the dryer；When drier off-load, off-load inductive switch open in usual
Closure exports efficient drying device off-load signal and is sent to entire car controller.
As shown in Figure 1, a kind of pneumatic control system of plug-in hybrid passenger car disclosed by the invention, further includes air pressure
Sensor 1, baroceptor 2, CAN bus instrument, drier and Engine ECU.
Wherein, baroceptor 1 and baroceptor 2 are connected with CAN bus instrument；
The CAN bus instrument, entire car controller VCU are connected with Engine ECU by CAN bus and according to SAE
J1939 agreement is communicated；
Entire car controller VCU receives the atmospheric pressure value of CAN bus instrument to collect by bus network, and passes through bus network control
The start and stop of engine processed.
Specifically, the drier is equipped with off-load inductive switch open in usual, and inductive switch is closed when off-load, and will closure
Signal (i.e. efficient drying device off-load signal) passes to entire car controller by physical cord.
In specific implementation, the entire car controller, is configured as:
Receive two-way atmospheric pressure value in double-loop air braking system；
By two-way atmospheric pressure value respectively with first pressure threshold value comparison, it is lower than first pressure threshold value when there is any road atmospheric pressure value
When, engine start is immediately controlled, to inflate to pipeline；
After engine start, in the effective situation of drier off-load signal, two-way atmospheric pressure value is pressed with second respectively
Force threshold compares, and when two-way atmospheric pressure value is above second pressure threshold value, continues after control engine delay operation preset time
It inflates for pipeline, so that drier continues off-load, the moisture that molecular sieve adsorbs sufficiently is discharged；Wherein, first pressure threshold value is small
In second pressure threshold value.
In general, engine delay operation preset time is 5s, other can also be set as according to car practical operation situation
Time value.
First pressure threshold value may be configured as 0.6Mpa, can also be set as other pressure according to car practical operation situation
Value；
Second pressure threshold value may be configured as 0.9MPa, can also be set as other pressure according to car practical operation situation
Value.
In another embodiment, the entire car controller, is also configured to
By two-way atmospheric pressure value respectively with first pressure threshold value comparison during, when two-way atmospheric pressure value is above the first pressure
When force threshold, engine is allowed to shut down.
When two-way atmospheric pressure value is above first pressure threshold value, illustrate that air pressure has reached preset requirement, then engine can
Not inflate to pipeline, reduce the energy consumption of engine in this way.
In another embodiment, the entire car controller, is also configured to
After engine start, in the effective situation of drier off-load signal, when any value is not high in two-way atmospheric pressure value
When second pressure threshold value, control engine does not allow to shut down.
The present invention can actively judge whether drier off-load inductive switch goes out by increasing secondary air pressure judgment step
When existing adhesion fault, do not allow to shut down when air pressure is not up to setting value just in case adhesion fault occur also and can control engine,
The safety and reliability of plug-in hybrid passenger car air-pressure brake is improved again.
In another embodiment, the entire car controller, is also configured to
While controlling engine does not allow to shut down, off-load inductive switch failure open in usual is sent to CAN bus instrument
Information reminds driver to check drier in time.
The present invention inflate each time process can all guarantee drier carry out off-load operation, thus by molecular sieve absorption it is cold
Condensate is sufficiently discharged, and improves the safety and reliability of plug-in hybrid passenger car air-pressure brake；
The present invention can actively judge whether drier off-load inductive switch goes out by increasing secondary air pressure judgment step
When existing adhesion fault, do not allow to shut down when air pressure is not up to setting value just in case adhesion fault occur also and can control engine,
The safety and reliability of plug-in hybrid passenger car air-pressure brake is improved again.
The control method of pneumatic control system based on plug-in hybrid passenger car of the invention, this method are suitable for whole
Vehicle controller, comprising:
Receive two-way atmospheric pressure value in double-loop air braking system；
By two-way atmospheric pressure value respectively with first pressure threshold value comparison, it is lower than first pressure threshold value when there is any road atmospheric pressure value
When, engine start is immediately controlled, to inflate to pipeline；
After engine start, in the effective situation of drier off-load signal, two-way atmospheric pressure value is pressed with second respectively
Force threshold compares, and when two-way atmospheric pressure value is above second pressure threshold value, continues after control engine delay operation preset time
It inflates for pipeline, so that drier continues off-load, the moisture that molecular sieve adsorbs sufficiently is discharged；Wherein, first pressure threshold value is small
In second pressure threshold value.
In general, engine delay operation preset time is 5s, other can also be set as according to car practical operation situation
Time value.
First pressure threshold value may be configured as 0.6Mpa, can also be set as other pressure according to car practical operation situation
Value；
Second pressure threshold value may be configured as 0.9MPa, can also be set as other pressure according to car practical operation situation
Value.
In another embodiment, by two-way atmospheric pressure value respectively with first pressure threshold value comparison during, work as tow channel gas
When pressure value is above first pressure threshold value, engine is allowed to shut down.
In another embodiment, after engine start, in the effective situation of drier off-load signal, when two-way air pressure
When any value is not higher than second pressure threshold value in value, control engine does not allow to shut down.
Specifically, Fig. 2 provides pneumatic control system one embodiment of the invention based on plug-in hybrid passenger car
Specifically control method, comprising:
Step a: entire car controller judges whether two-way atmospheric pressure value any atmospheric pressure value all the way occurs and be lower than first pressure threshold value
(setting value P1) is inflated if so, Engine ECU starting engine is immediately controlled；If it is not, then engine is allowed to shut down；
Step b: after engine start, entire car controller judges whether drier off-load signal is effective, if so, entering step
Rapid c；If it is not, then controlling Engine ECU does not allow to shut down；
Step c: entire car controller judges whether two-way atmospheric pressure value is above second pressure threshold value (setting value P2), if so,
Then enter step d；If it is not, then controlling Engine ECU does not allow to shut down, and is sent and done to CAN bus instrument by bus network
Dry device off-load inductive switch fault message reminds driver to check drier in time；
Step d: it the engine delay operation t time, continues as pipeline and inflates, so that drier continues off-load, by molecular sieve
The moisture of absorption is sufficiently discharged；
After the step e:t time, entire car controller allows engine to shut down, after engine is shut down, return step a.
Such as: P1 is set as 0.6MPa, and P2 is set as 0.9MPa, and t is set as 5s.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (10)
1. a kind of pneumatic control system of plug-in hybrid passenger car characterized by comprising
Off-load inductive switch open in usual, installation is on the dryer；When drier off-load, off-load inductive switch open in usual is closed
It closes, export efficient drying device off-load signal and is sent to entire car controller；
The entire car controller, is configured as:
Receive two-way atmospheric pressure value in double-loop air braking system；
By two-way atmospheric pressure value respectively with first pressure threshold value comparison, when there is any road atmospheric pressure value and being lower than first pressure threshold value,
Engine start is immediately controlled, to inflate to pipeline；
After engine start, in the effective situation of drier off-load signal, by two-way atmospheric pressure value respectively with second pressure threshold
Value compares, and when two-way atmospheric pressure value is above second pressure threshold value, continues as pipe after control engine delay operation preset time
Road is inflated, so that drier continues off-load, the moisture that molecular sieve adsorbs sufficiently is discharged；Wherein, first pressure threshold value is less than
Two pressure thresholds.
2. a kind of pneumatic control system of plug-in hybrid passenger car as described in claim 1, which is characterized in that described whole
Vehicle controller is also configured to
By two-way atmospheric pressure value respectively with first pressure threshold value comparison during, when two-way atmospheric pressure value is above first pressure threshold
When value, engine is allowed to shut down.
3. a kind of pneumatic control system of plug-in hybrid passenger car as described in claim 1, which is characterized in that described whole
Vehicle controller is also configured to
After engine start, in the effective situation of drier off-load signal, when in two-way atmospheric pressure value any value not higher than the
When two pressure thresholds, control engine does not allow to shut down.
4. a kind of pneumatic control system of plug-in hybrid passenger car as claimed in claim 3, which is characterized in that described whole
Vehicle controller is also configured to
While controlling engine does not allow to shut down, off-load inductive switch fault message open in usual is sent to CAN bus instrument,
Driver is reminded to check drier in time.
5. a kind of pneumatic control system of plug-in hybrid passenger car as described in claim 1, which is characterized in that described whole
Vehicle controller is connected with baroceptor, and the baroceptor is for detecting two-way atmospheric pressure value in double-loop air braking system.
6. a kind of pneumatic control system of plug-in hybrid passenger car as described in claim 1, which is characterized in that open in usual
Efficient drying device off-load signal is passed to entire car controller by physical cord by off-load inductive switch.
7. a kind of control of the pneumatic control system based on plug-in hybrid passenger car such as of any of claims 1-6
Method processed, this method are suitable for entire car controller characterized by comprising
Receive two-way atmospheric pressure value in double-loop air braking system；
By two-way atmospheric pressure value respectively with first pressure threshold value comparison, when there is any road atmospheric pressure value and being lower than first pressure threshold value,
Engine start is immediately controlled, to inflate to pipeline；
After engine start, in the effective situation of drier off-load signal, by two-way atmospheric pressure value respectively with second pressure threshold
Value compares, and when two-way atmospheric pressure value is above second pressure threshold value, continues as pipe after control engine delay operation preset time
Road is inflated, so that drier continues off-load, the moisture that molecular sieve adsorbs sufficiently is discharged；Wherein, first pressure threshold value is less than
Two pressure thresholds.
8. control method as claimed in claim 7, which is characterized in that by two-way atmospheric pressure value respectively with first pressure threshold value ratio
Compared with during, when two-way atmospheric pressure value is above first pressure threshold value, engine is allowed to shut down.
9. control method as claimed in claim 7, which is characterized in that after engine start, have in drier off-load signal
In the case where effect, when any value is not higher than second pressure threshold value in two-way atmospheric pressure value, control engine does not allow to shut down.
10. control method as claimed in claim 9, which is characterized in that while controlling engine does not allow to shut down, to
CAN bus instrument sends off-load inductive switch fault message open in usual, and driver is reminded to check drier in time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052339.0A CN109177961B (en) | 2018-09-10 | 2018-09-10 | Air pressure control system and control method of plug-in hybrid electric bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052339.0A CN109177961B (en) | 2018-09-10 | 2018-09-10 | Air pressure control system and control method of plug-in hybrid electric bus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109177961A true CN109177961A (en) | 2019-01-11 |
| CN109177961B CN109177961B (en) | 2024-07-05 |
Family
ID=64915627
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811052339.0A Active CN109177961B (en) | 2018-09-10 | 2018-09-10 | Air pressure control system and control method of plug-in hybrid electric bus |
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| EP1529704A1 (en) * | 2003-11-10 | 2005-05-11 | Iveco S.p.A. | Method and device for controlling regulation, drying and regeneration of a regulator dryer unit in a pneumatic-hydraulic braking system of a vehicle |
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| Publication number | Publication date |
|---|---|
| CN109177961B (en) | 2024-07-05 |
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