CN104477165B - A kind of motor vehicle driven by mixed power oil pump control method - Google Patents
A kind of motor vehicle driven by mixed power oil pump control method Download PDFInfo
- Publication number
- CN104477165B CN104477165B CN201410690023.XA CN201410690023A CN104477165B CN 104477165 B CN104477165 B CN 104477165B CN 201410690023 A CN201410690023 A CN 201410690023A CN 104477165 B CN104477165 B CN 104477165B
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- Prior art keywords
- pump
- oil
- motor
- filled
- flow
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000003921 oil Substances 0.000 claims abstract description 57
- 239000010705 motor oil Substances 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000010729 system oil Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/30—Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Control Of Transmission Device (AREA)
- Hybrid Electric Vehicles (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
Present invention is disclosed a kind of motor vehicle driven by mixed power oil pump control method：After step 1, vehicle launch, the demand volume of system-computed motor pump；Step 2, according to demand flow judge whether to need to start motor pump, if desired start motor pump then execution step 3, if being not required to start motor pump execution step 5；Step 3, system judge whether need it is oil-filled, it is if desired oil-filled, perform arrangement 4, if be not required to it is oil-filled if execution step 5；Step 4, system are oil-filled；Step 5, complete, export the request rotating speed of Oil pump electrical machinery.Flow and changes in flow rate amount of the present invention according to system, pre-cooling high-voltage motor oil pump, and according to the controlled output of changes in flow rate amendment high-voltage motor oil pump, so as to avoid in hybrid electric vehicle oil pump handoff procedure system pressure not foot phenomenon, improve the durability for driving effect and change speed gear box.
Description
Technical field
The present invention relates to motor vehicle driven by mixed power automatic gear-box control field.
Background technology
With the development of auto industry, research staff is had found during research and development motor vehicle driven by mixed power, for change automatically
In terms of the oil pump control of fast case, because high-voltage motor pump start process has delay phenomenon, the handoff procedure with mechanical oil pump
In system pressure can be caused not enough, affect the durability of the performance and change speed gear box of vehicle.
The content of the invention
The technical problem to be solved is to realize that a kind of hybrid electric vehicle oil pump switching is reliable, and is avoided that switching
During system pressure not foot phenomenon control method.
To achieve these goals, the technical solution used in the present invention is：A kind of motor vehicle driven by mixed power oil pump control method：
After step 1, vehicle launch, the demand volume of system-computed motor pump；
Step 2, according to demand flow judge whether to need to start motor pump, if desired start motor pump and then perform step
Rapid 3, the execution step 5 if startup motor pump is not required to；
Step 3, system judge whether need it is oil-filled, it is if desired oil-filled, perform arrangement 4, if be not required to it is oil-filled if execution step
5；
Step 4, system are oil-filled；
Step 5, complete, export the request rotating speed of Oil pump electrical machinery.
In the step 1, the demand volume of motor pump is according to the current demand volume of system, the flow of mechanical pump offer
Calculate with the variable quantity of mechanical pump discharge, the current demand volume is by driver's requested torque and whole change speed gear box
The vent flow of system is calculated, and the flow and mechanical pump changes in flow rate amount of mechanical pump are rotating speed and rotating speed by mechanical pump
Rate of change is calculated
In the step 1, the motor pump flow of demand is to deduct mechanical pump offer by the demand volume of current system
Flow, and this value is compensated by the changes in flow rate amount of mechanical pump.
In the step 2, judge whether motor pump needs to start, if the motor pump flow of demand is more than setting threshold
Value, then judge that high-voltage motor oil pump needs to start, if the motor pump flow of demand is less than given threshold, judge high-voltage motor
Oil pump need not start.
In the step 3, judge whether system needs oil-filled, if previous cycle motor pump is in halted state simultaneously
And the oil pressure of current system be less than certain value, then judge system needs it is oil-filled, if above-mentioned condition any one be unsatisfactory for, judge
System need not be oil-filled.
In the step 4, system is oil-filled, if oil-filled condition meets, when motor pump can run one section with maximum (top) speed
Between.
In the step 5, output motor oil pump request rotating speed, if motor pump need not start, output motor oil pump
Request rotating speed is zero, if motor pump needs to start, the motor pump of motor pump flow rate calculation output according to demand turns
Speed.
Flow and changes in flow rate amount of the present invention according to system, pre-cooling high-voltage motor oil pump, and according to changes in flow rate
The controlled output of amendment high-voltage motor oil pump, so as to avoid in hybrid electric vehicle oil pump handoff procedure system pressure not foot phenomenon,
Improve the durability for driving effect and change speed gear box.
Description of the drawings
Below the content of every width accompanying drawing expression in description of the invention is briefly described：
Fig. 1 is high-voltage motor oil pump control method flow chart.
Specific embodiment
Transmission electronic control unit (TCU) sends rotating speed request instruction to high-voltage motor oil pump controller, high in request
Piezoelectricity lubricating oil pump from static in running, due to motor response delayed and hydraulic system it is delayed, system reality can be caused
There is certain delay between border oil pressure and demand oil pressure, so needing to be improved the control algolithm of motor pump.Such as Fig. 1
Shown, high-voltage motor oil pump control method of the present invention is as follows：
In control process, first according to the current demand volume of system, the flow of mechanical pump offer and mechanical pump discharge
Variable quantity calculate the demand volume of motor pump, judge whether to need to start high-tension electricity machine oil according to this demand volume
Pump, then judges whether system needs oil-filled, finally exports the request rotating speed of Oil pump electrical machinery.
Specifically, perform according to following steps：
After step 1, vehicle launch, the demand volume of system-computed motor pump；According to the current demand volume of system, machine
Flow and the variable quantity of mechanical pump discharge that tool pump is provided calculate the motor pump flow of demand, the wherein current flow of requirement of system
Amount is calculated by the vent flow of driver's requested torque and whole transmission system, the flow and mechanical pump stream of mechanical pump
Amount variable quantity is that rotating speed and relative speed variation by mechanical pump are calculated.The motor pump flow of demand is by current system
The demand volume of system deducts the flow of mechanical pump offer, and this value is compensated by the changes in flow rate amount of mechanical pump.
Step 2, according to demand flow judge whether to need to start motor pump, if desired start motor pump and then perform step
Rapid 3, the execution step 5 if startup motor pump is not required to；Judge whether motor pump needs to start, if the motor pump of demand
Flow is more than certain value, then judge that high-voltage motor oil pump needs to start, if the motor pump flow of demand is less than certain value, sentence
Broken height piezoelectricity lubricating oil pump need not start.
Step 3, system judge whether need it is oil-filled, it is if desired oil-filled, perform arrangement 4, if be not required to it is oil-filled if execution step
5；Judge whether system needs oil-filled, if previous cycle motor pump is in halted state and the oil pressure of current system is little
In certain value, then judge system need it is oil-filled, if above-mentioned condition any one be unsatisfactory for, judge that system need not be oil-filled.
Step 4, system are oil-filled；System is oil-filled, if oil-filled condition meets, motor pump can run one section with maximum (top) speed
Time.
Step 5, complete, export the request rotating speed of Oil pump electrical machinery.Output motor oil pump asks rotating speed, if motor pump is not required to
Start, then output motor oil pump request rotating speed is zero, if motor pump needs to start, motor pump flow according to demand
Calculate the motor pump rotating speed of output.
The present invention is the flow and changes in flow rate amount according to system, pre-cooling high-voltage motor oil pump, and is become according to flow
Change the controlled output of amendment high-voltage motor oil pump.Effectively solve to exist between the actual oil pressure of system and demand oil pressure and necessarily prolong
Slow problem.
Claims (6)
1. a kind of motor vehicle driven by mixed power oil pump control method, it is characterised in that：
After step 1, vehicle launch, the demand volume of system-computed motor pump；
Step 2, according to demand flow judge whether to need to start motor pump, if desired start motor pump then execution step 3,
The execution step 5 if startup motor pump is not required to；
Step 3, system judge whether need it is oil-filled, it is if desired oil-filled, execution step 4, if be not required to it is oil-filled if execution step 5；
Step 4, system are oil-filled；
Step 5, complete, export the request rotating speed of Oil pump electrical machinery；
In the step 1, the demand volume of motor pump is according to the current demand volume of system, the flow of mechanical pump offer and machine
The variable quantity of tool pump discharge is calculated, and the current demand volume is by driver's requested torque and whole transmission system
Vent flow be calculated, the flow and mechanical pump changes in flow rate amount of mechanical pump are rotating speed and relative speed variation by mechanical pump
It is calculated.
2. motor vehicle driven by mixed power oil pump control method according to claim 1, it is characterised in that：In the step 1, demand
Motor pump flow be the flow that mechanical pump offer is provided by the demand volume of current system, and the flow by mechanical pump
Variable quantity is compensated to this value.
3. motor vehicle driven by mixed power oil pump control method according to claim 1, it is characterised in that：In the step 2, judge
Whether motor pump needs to start, if the motor pump flow of demand is more than given threshold, judges that high-voltage motor oil pump is needed
Start, if the motor pump flow of demand is less than given threshold, judge that high-voltage motor oil pump need not start.
4. motor vehicle driven by mixed power oil pump control method according to claim 1, it is characterised in that：In the step 3, judge
It is oil-filled whether system needs, if previous cycle motor pump is in the oil pressure of halted state and current system less than certain
Value, then judge system needs it is oil-filled, if above-mentioned condition any one be unsatisfactory for, judge that system need not be oil-filled.
5. motor vehicle driven by mixed power oil pump control method according to claim 1, it is characterised in that：In the step 4, system
Oil-filled, if oil-filled condition meets, motor pump can be with maximum (top) speed operation a period of time.
6. motor vehicle driven by mixed power oil pump control method according to claim 1, it is characterised in that：In the step 5, output
Motor pump asks rotating speed, if motor pump need not start, output motor oil pump request rotating speed is zero, if motor pump is needed
Start, then the motor pump rotating speed of motor pump flow rate calculation output according to demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410690023.XA CN104477165B (en) | 2014-11-25 | 2014-11-25 | A kind of motor vehicle driven by mixed power oil pump control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410690023.XA CN104477165B (en) | 2014-11-25 | 2014-11-25 | A kind of motor vehicle driven by mixed power oil pump control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104477165A CN104477165A (en) | 2015-04-01 |
| CN104477165B true CN104477165B (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410690023.XA Active CN104477165B (en) | 2014-11-25 | 2014-11-25 | A kind of motor vehicle driven by mixed power oil pump control method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943591B (en) * | 2021-02-18 | 2022-07-19 | 中国第一汽车股份有限公司 | Automobile oil pump motor control method, vehicle and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101082376A (en) * | 2006-05-25 | 2007-12-05 | 通用汽车环球科技运作公司 | Method and apparatus to control hydraulic pressure in an electro-mechanical transmission |
| CN102022303A (en) * | 2009-09-15 | 2011-04-20 | 上海华普汽车有限公司 | Dual-driving oil pump and control system thereof |
| CN103619683A (en) * | 2011-06-22 | 2014-03-05 | 艾里逊变速箱公司 | Low level oil detection system and method |
| CN103863312A (en) * | 2012-12-17 | 2014-06-18 | 上海汽车集团股份有限公司 | Method for controlling hybrid-drive gearbox based on oil pressure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6025628B2 (en) * | 2013-03-21 | 2016-11-16 | 日産自動車株式会社 | Control device for hybrid vehicle |
-
2014
- 2014-11-25 CN CN201410690023.XA patent/CN104477165B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101082376A (en) * | 2006-05-25 | 2007-12-05 | 通用汽车环球科技运作公司 | Method and apparatus to control hydraulic pressure in an electro-mechanical transmission |
| CN102022303A (en) * | 2009-09-15 | 2011-04-20 | 上海华普汽车有限公司 | Dual-driving oil pump and control system thereof |
| CN103619683A (en) * | 2011-06-22 | 2014-03-05 | 艾里逊变速箱公司 | Low level oil detection system and method |
| CN103863312A (en) * | 2012-12-17 | 2014-06-18 | 上海汽车集团股份有限公司 | Method for controlling hybrid-drive gearbox based on oil pressure |
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| Publication number | Publication date |
|---|---|
| CN104477165A (en) | 2015-04-01 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160714 Address after: 241009 Wuhu economic and Technological Development Zone, Changchun Road, No. 8, No. Applicant after: Chery Holding Co., Ltd. Address before: 241009 Wuhu economic and Technological Development Zone, Anhui, No. 8 Changchun Road Applicant before: Saic Chery Automobile Co., Ltd. |
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Address after: 241009 Changchun Road, Wuhu economic and Technological Development Zone, Anhui 8 Patentee after: Chery Holdings Limited Address before: 241009 Changchun Road, Wuhu economic and Technological Development Zone, Anhui 8 Patentee before: Chery Holding Co., Ltd. |