CN112693446A - Control method for quick parallel charging of batteries of hybrid electric vehicle - Google Patents
Control method for quick parallel charging of batteries of hybrid electric vehicle Download PDFInfo
- Publication number
- CN112693446A CN112693446A CN201910988054.6A CN201910988054A CN112693446A CN 112693446 A CN112693446 A CN 112693446A CN 201910988054 A CN201910988054 A CN 201910988054A CN 112693446 A CN112693446 A CN 112693446A
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- CN
- China
- Prior art keywords
- parallel charging
- electric vehicle
- hybrid electric
- quick
- target torque
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Classifications
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
-
- 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
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a control method for quick parallel charging of batteries of a hybrid electric vehicle, wherein the hybrid electric vehicle determines the current parallel charging demand torque according to the opening degree of an accelerator pedal and the rotating speed of a motor so as to charge the batteries in parallel; setting a target torque required by rapid parallel charging, and setting an external instruction input switch; and when an instruction of switching on the external instruction input switch is received, switching from the current parallel charging required torque to the target torque required by the rapid parallel charging, and performing parallel charging on the battery according to the target torque required by the rapid parallel charging. In the control method for the quick parallel charging of the hybrid electric vehicle battery, the set target torque required by the quick parallel charging is much larger than the current parallel charging required torque, so that the battery can quickly recover the electric quantity, the motor power assisting requirement of quick acceleration is supported, and the driving feeling is improved.
Description
Technical Field
The invention relates to a control method, in particular to a control method for quick parallel charging of batteries of a hybrid electric vehicle.
Background
Because the capacity of the battery of the hybrid electric vehicle is limited, when the vehicle is accelerated continuously and rapidly for several times, the electric quantity of the battery is reduced to the condition that the motor assistance cannot be supported.
At this time, if the electric quantity of the battery needs to be recovered rapidly, parallel charging is needed; the current parallel charging control strategy only considers the situation that the usual rapid acceleration frequency is not high, so that the parallel charging speed is slow. If the current situation needs a multi-frequency emergency acceleration, the battery power cannot be quickly replenished, and the emergency acceleration requirement cannot be satisfied.
Disclosure of Invention
The invention provides a control method for quick parallel charging of batteries of a hybrid electric vehicle, aiming at the defects of the prior art.
According to the control method for the quick parallel charging of the batteries of the hybrid electric vehicle, the hybrid electric vehicle determines the current parallel charging required torque according to the opening degree of an accelerator pedal and the rotating speed of a motor so as to charge the batteries in parallel;
setting a target torque required by rapid parallel charging, and setting an external instruction input switch;
and when an instruction of switching on the external instruction input switch is received, switching from the current parallel charging required torque to the target torque required by the rapid parallel charging, and performing parallel charging on the battery according to the target torque required by the rapid parallel charging.
In the control method for the quick parallel charging of the hybrid electric vehicle battery, the set target torque required by the quick parallel charging is much larger than the current parallel charging required torque, so that the battery can quickly recover the electric quantity, the motor power assisting requirement of quick acceleration is supported, and the driving feeling is improved.
Detailed Description
The present invention is described in further detail below to enable those skilled in the art to practice the invention with reference to the description.
In the control method for the quick parallel charging of the batteries of the hybrid electric vehicle, the hybrid electric vehicle has two parallel charging control modes, one mode is based on the existing control method, namely the current parallel charging demand torque is determined according to the opening degree of an accelerator pedal and the rotating speed of a motor, and the batteries are charged in parallel according to the determined current parallel charging demand torque.
The other method is to solve the requirement of quick parallel charging of the batteries under the multi-frequency urgent acceleration working condition, through presetting the target torque required by quick parallel charging and setting an external instruction input switch, when receiving the instruction of switching on the external instruction input switch, the current parallel charging required torque is switched to the target torque required by quick parallel charging, and the batteries are charged in parallel according to the target torque required by quick parallel charging. Because the set target torque required by the rapid parallel charging is much larger than the current parallel charging required torque, the battery can recover the electric quantity quickly, so that the motor power-assisted requirement of rapid acceleration is supported, and the driving feeling is improved.
In the invention, the target torque required by the rapid parallel charging is preset, namely a corresponding relation list of the target torque during the rapid parallel charging, the opening degree of an accelerator pedal and the rotating speed of a motor is formulated by applying a statistical principle according to the acquisition of real vehicle test data. Then, in the actual control, the target torque required for the rapid parallel charging can be determined based on the actually input accelerator opening and/or motor speed. That is, the target torque required for the rapid parallel charging is adjusted with respect to the parallel charging required torque in a normal state, and may be different according to the actually input opening degree of the accelerator pedal and the actually input rotation speed of the motor.
For example, in the case where the accelerator opening degree is small, it is determined that the charge demand of the driver is not high, and therefore, the target torque required for rapid parallel charging is only slightly increased with respect to the parallel charge demand torque in the normal state. For another example, when the opening degree of the accelerator pedal is large, it is determined that the driver has an intention to accelerate, and then the target torque required for the rapid parallel charging at this time is not largely adjusted with respect to the parallel charging required torque in the normal state. For another example, when the vehicle speed is low, the target torque required for the rapid parallel charging at this time is adjusted to be smaller than the parallel charging required torque in a normal state because the power generation efficiency of the motor is low. For example, when the vehicle speed is high, the output of the engine is mainly used to drive the vehicle, and therefore the target torque required for the rapid parallel charging does not change excessively from the parallel charging required torque in the normal state. Therefore, only when the specific proper accelerator opening degree and the motor rotating speed range are within, the target torque required by the rapid parallel charging is greatly increased relative to the parallel charging required torque under the normal state, so that the parallel charging power is increased, and the rapid charging target is realized.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may readily be effected by those skilled in the art, so that the invention is not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.
Claims (1)
1. A control method for the quick parallel charging of the batteries of the hybrid electric vehicle, the hybrid electric vehicle determines the current parallel charging demand torque according to the opening degree of an accelerator pedal and the rotating speed of a motor so as to charge the batteries in parallel,
setting a target torque required by rapid parallel charging, and setting an external instruction input switch;
and when an instruction of switching on the external instruction input switch is received, switching from the current parallel charging required torque to the target torque required by the rapid parallel charging, and performing parallel charging on the battery according to the target torque required by the rapid parallel charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910988054.6A CN112693446A (en) | 2019-10-17 | 2019-10-17 | Control method for quick parallel charging of batteries of hybrid electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910988054.6A CN112693446A (en) | 2019-10-17 | 2019-10-17 | Control method for quick parallel charging of batteries of hybrid electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112693446A true CN112693446A (en) | 2021-04-23 |
Family
ID=75504642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910988054.6A Pending CN112693446A (en) | 2019-10-17 | 2019-10-17 | Control method for quick parallel charging of batteries of hybrid electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112693446A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009262894A (en) * | 2008-04-30 | 2009-11-12 | Haruko Amiya | Hybrid car |
| CN102849064A (en) * | 2011-06-30 | 2013-01-02 | 通用汽车环球科技运作有限责任公司 | System and method for operating a hybrid vehicle |
| US20140058604A1 (en) * | 2011-02-04 | 2014-02-27 | Yoshiki Ito | Drive control device of hybrid vehicle |
| CN106853780A (en) * | 2015-12-08 | 2017-06-16 | 北汽福田汽车股份有限公司 | Electric automobile and its moment of torsion analytic method and moment of torsion resolution system |
| CN108688646A (en) * | 2017-04-04 | 2018-10-23 | 现代自动车株式会社 | The method of the charge mode of hybrid vehicle and control hybrid vehicle |
-
2019
- 2019-10-17 CN CN201910988054.6A patent/CN112693446A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009262894A (en) * | 2008-04-30 | 2009-11-12 | Haruko Amiya | Hybrid car |
| US20140058604A1 (en) * | 2011-02-04 | 2014-02-27 | Yoshiki Ito | Drive control device of hybrid vehicle |
| CN102849064A (en) * | 2011-06-30 | 2013-01-02 | 通用汽车环球科技运作有限责任公司 | System and method for operating a hybrid vehicle |
| CN106853780A (en) * | 2015-12-08 | 2017-06-16 | 北汽福田汽车股份有限公司 | Electric automobile and its moment of torsion analytic method and moment of torsion resolution system |
| CN108688646A (en) * | 2017-04-04 | 2018-10-23 | 现代自动车株式会社 | The method of the charge mode of hybrid vehicle and control hybrid vehicle |
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