CN104595167A - Blast pump control method for pure electric automobile - Google Patents
Blast pump control method for pure electric automobile Download PDFInfo
- Publication number
- CN104595167A CN104595167A CN201410823502.4A CN201410823502A CN104595167A CN 104595167 A CN104595167 A CN 104595167A CN 201410823502 A CN201410823502 A CN 201410823502A CN 104595167 A CN104595167 A CN 104595167A
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- inflating pump
- pure electric
- exsiccator
- electric automobile
- air pressure
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Abstract
The invention discloses a blast pump control method for a pure electric automobile. The method includes the following steps of making an unloading signal of a brake system drier have access to a whole automobile CAN network, starting the work of a blast pump through a whole automobile controller according to the before-braking gas pressure and after-braking gas pressure of a gas storage tank, and stopping the work of the blast pump after the unloading signal of the drier is received. On the basis of the information interaction of a brake system and the whole automobile controller, the blast pump is intelligently controlled to be opened and closed according to the actual situation of the whole automobile and the actual pressure of the gas storage tank, the requirement for the safety of the brake system is met, and the energy consumption is lowered.
Description
Technical field
the invention belongs to pure electric automobile inflating pump control field, particularly a kind of dynamically adapting vehicle virtual condition, meets braking system safety requirement, reduces the pure electric automobile inflating pump controlling method of energy consumption.
Background technique
in new-energy automobile system, in order to pure electric automobile is energy-conservation further, need to carry out on off control to inflating pump.Usually be all intelligent control inflating pump, existing controlling method is: the air pressure being read car load braking system gas holder by entire car controller, setting initial pressure value, starts inflating pump and inflates; When air pressure reaches setting closing pressure value, close inflating pump.But there is the problem of the following aspects in this method of inflating:
1. the air pressure of repeated acquisition braking system gas receiver, causes the wasting of resources;
2. pressure transducer measuring accuracy is not high, and Systematical control difference can be caused large;
3. close the setup pressure value Pset1 of air pressure, do not meet braking system requirement.Before each closedown inflating pump, braking system air pressure can not accurately reach braking maximum pressure value, and on the automobile that traditional gas is braked, this force value is determined by the unloading valve of car load braking system exsiccator.Entire car controller internal pressure value P0 sets higher than exsiccator unloading valve pressure P t, and brake system pressure can not exceed setting value P0 all the time, and inflating pump can not cut out.
Summary of the invention
the object of this invention is to provide a kind of pure electric automobile inflating pump controlling method, on the basis of braking system and entire car controller information interaction, according to car load actual state, gas holder actual pressure, inflating pump intelligent control is opened and closedown, meet braking system safety requirement, reduce energy consumption.
technological scheme of the present invention is: a kind of pure electric automobile inflating pump controlling method, comprises the following steps:
by the off-load signal of braking system exsiccator access car load CAN network;
entire car controller starts inflating pump work according to gas holder air pressure before and after braking;
inflating pump work is stopped at the off-load signal receiving exsiccator.
further, before described inflating pump quits work, exsiccator carries out draining, dust discharge and exsiccator regeneration.
further, when the smaller value in the gas holder air pressure of described front and back is less than initial operating air pressure, start inflating pump work.
further, when the smaller value in the gas holder air pressure of described front and back is greater than initial operating air pressure, open exsiccator baroswitch, inflating pump quits work.
the invention has the beneficial effects as follows:
1. the present invention can make motor vehicle braking system and entire car controller carry out information interaction, thus makes control more accurate, intelligent.
2. the present invention can make entire car controller open and closedown inflating pump intelligent control according to car load actual state, gas holder actual pressure, can meet the requirement of braking system safety, and can effectively reduce car load energy consumption.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the invention will be further described:
fig. 1 is the FB(flow block) of pure electric automobile inflating pump controlling method.
Embodiment
for making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with embodiment also with reference to accompanying drawing, the present invention is described in more detail.Should be appreciated that, these describe just exemplary, and do not really want to limit the scope of the invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present invention.
embodiment:
as shown in Figure 1, the invention discloses a kind of pure electric automobile inflating pump controlling method, comprising: the off-load signal of braking system exsiccator is introduced entire car controller; Entire car controller receives braking pressure signal from car load instrument CAN network; Entire car controller starts inflating pump work according to gas holder air pressure before and after braking; Inflating pump is stopped at the off-load signal receiving exsiccator.
when fully accomplishing that car load braking gas holder gas-storing capacity meets brake request, inflating pump work is stopped to reach energy-conservation effect; Reach exsiccator off-load, exsiccator draining, dust discharge before stopping inflating pump work, exsiccator regenerates simultaneously, ensures in braking system anhydrous.Fully accomplish energy-conservation while meet braking system safety requirement.
specific operation are as follows:
open about inflating pump, increase by two controling parameters: before gas holder, after pressure P 1 and gas holder, pressure P 2, two kinds of controling parameters are measured in real time by sensor.
1., by the off-load signal of braking system exsiccator access car load CAN network, make entire car controller and braking system to carry out information interaction.
2. gather air pressure signal by full-vehicle control, compare the size of pressure P 2 after pressure P 1 and gas holder before gas holder, get smaller value P0=min{P1, P2}.
3. the range of working pressure of braking system is 4-8.5 bar, and initial operating air pressure is set to Pset.
4., as P0≤Pset, inflating pump is started working.Until during P0 > Pset, exsiccator baroswitch is opened, and inflating pump quits work.
5. repeat with cocycle.
should be understood that, above-mentioned embodiment of the present invention only for exemplary illustration or explain principle of the present invention, and is not construed as limiting the invention.Therefore, any amendment made when without departing from the spirit and scope of the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.In addition, claims of the present invention be intended to contain fall into claims scope and border or this scope and border equivalents in whole change and modification.
Claims (4)
1. a pure electric automobile inflating pump controlling method, is characterized in that, comprises the following steps:
By the off-load signal of braking system exsiccator access car load CAN network;
Entire car controller starts inflating pump work according to gas holder air pressure before and after braking;
Inflating pump work is stopped at the off-load signal receiving exsiccator.
2. pure electric automobile inflating pump controlling method according to claim 1, is characterized in that, before described inflating pump quits work, exsiccator carries out draining, dust discharge and exsiccator regeneration.
3. pure electric automobile inflating pump controlling method according to claim 1, is characterized in that, when the smaller value in the gas holder air pressure of described front and back is less than initial operating air pressure, starts inflating pump work.
4. pure electric automobile inflating pump controlling method according to claim 1, is characterized in that, when the smaller value in the gas holder air pressure of described front and back is greater than initial operating air pressure, open exsiccator baroswitch, inflating pump quits work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410823502.4A CN104595167B (en) | 2014-12-26 | 2014-12-26 | A kind of pure electric automobile inflating pump control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410823502.4A CN104595167B (en) | 2014-12-26 | 2014-12-26 | A kind of pure electric automobile inflating pump control method |
Publications (2)
| Publication Number | Publication Date |
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| CN104595167A true CN104595167A (en) | 2015-05-06 |
| CN104595167B CN104595167B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410823502.4A Active CN104595167B (en) | 2014-12-26 | 2014-12-26 | A kind of pure electric automobile inflating pump control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224220A (en) * | 2016-08-19 | 2016-12-14 | 郑州宇通客车股份有限公司 | A kind of electric compressor self adaptation halt control method and device |
| CN107120262A (en) * | 2017-05-11 | 2017-09-01 | 厦门金龙联合汽车工业有限公司 | A kind of electric compressor control strategy and method for diagnosing faults |
| CN107650898A (en) * | 2017-09-15 | 2018-02-02 | 南京金龙客车制造有限公司 | A kind of pneumatic control system and its control method of bus brake system system |
| CN108327698A (en) * | 2018-01-22 | 2018-07-27 | 内蒙古青杉汽车有限公司 | A kind of air pump system control method |
| CN111319599A (en) * | 2018-12-14 | 2020-06-23 | 郑州宇通客车股份有限公司 | Vehicle air pump system, control method thereof and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106224220A (en) * | 2016-08-19 | 2016-12-14 | 郑州宇通客车股份有限公司 | A kind of electric compressor self adaptation halt control method and device |
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| CN107120262B (en) * | 2017-05-11 | 2018-08-31 | 厦门金龙联合汽车工业有限公司 | A kind of electric compressor control strategy and method for diagnosing faults |
| CN107650898A (en) * | 2017-09-15 | 2018-02-02 | 南京金龙客车制造有限公司 | A kind of pneumatic control system and its control method of bus brake system system |
| CN108327698A (en) * | 2018-01-22 | 2018-07-27 | 内蒙古青杉汽车有限公司 | A kind of air pump system control method |
| CN111319599A (en) * | 2018-12-14 | 2020-06-23 | 郑州宇通客车股份有限公司 | Vehicle air pump system, control method thereof and vehicle |
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|---|---|
| CN104595167B (en) | 2017-01-04 |
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