CN108128213B - Power control method and system - Google Patents
Power control method and system Download PDFInfo
- Publication number
- CN108128213B CN108128213B CN201711400769.2A CN201711400769A CN108128213B CN 108128213 B CN108128213 B CN 108128213B CN 201711400769 A CN201711400769 A CN 201711400769A CN 108128213 B CN108128213 B CN 108128213B
- Authority
- CN
- China
- Prior art keywords
- clutch
- planetary gear
- gear set
- motor
- information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
-
- 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
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
-
- 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
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- 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
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
-
- 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
-
- 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
- Y02T10/72—Electric energy management in electromobility
Abstract
the embodiment of the invention provides a power control method and a system, wherein the method comprises the steps of receiving the information of the rotating speed and the output torque of a motor sent by a motor controller; and controlling the second clutch to be connected with the planetary gear set according to the information of the rotating speed and the output torque of the motor, transmitting power under the driving of the motor, controlling the first clutch to be disconnected with the planetary gear set, and controlling the third clutch to be combined with the planetary gear set after the first clutch is disconnected with the planetary gear set so as to complete gear shifting. The embodiment of the invention can effectively improve the overall performance of the power control system in the electric vehicle and reduce the power consumption of the motor.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a power control method and system.
background
At present, a power system of the pure electric pickup card mainly adopts a motor direct-drive mode or a driving mode that a motor is matched with a reduction gearbox, but the two driving modes adopt a motor with large torque and low rotating speed to drive, so that the motor cost is overhigh and the high-efficiency area is narrow.
disclosure of Invention
It is therefore an object of the present invention to provide a power control method and system to improve the above-mentioned problems.
A preferred embodiment of the present invention provides a power control method applied to an automatic transmission control unit connected to an automatic transmission, the automatic transmission including a planetary gear set, a first clutch, a second clutch, and a third clutch, an input shaft of the automatic transmission being connected to a motor, the planetary gear set being provided to the input shaft of the automatic transmission, the first clutch, the second clutch, and the third clutch being provided to the planetary gear set, the method including:
Receiving the information of the rotating speed and the output torque of a motor sent by a Motor Controller (MCU);
And controlling the second clutch to be connected with the planetary gear set according to the information of the rotating speed and the output torque of the motor, transmitting power under the driving of the motor, controlling the first clutch to be disconnected with the planetary gear set, and controlling the third clutch to be combined with the planetary gear set after the first clutch is disconnected with the planetary gear set so as to complete gear shifting.
In an option of the preferred embodiment of the present invention, the method further comprises:
Controlling the first clutch to move freely after the first clutch is disengaged from the planetary gear set; and
and detecting whether the combining torque of the third clutch and the planetary gear set meets the power transmission requirement, if so, controlling the second clutch to perform overrunning free movement, and controlling the third clutch to perform power transmission.
The preferred embodiment of the present invention further provides a power control method, which is applied to a control unit including a motor controller, a motor, an automatic transmission, and an automatic transmission, wherein the automatic transmission includes a planetary gear set, a first clutch, a second clutch, and a third clutch, the motor is connected to an input shaft of the automatic transmission, the planetary gear set is disposed on the input shaft of the automatic transmission, and the first clutch, the second clutch, and the third clutch are disposed on the planetary gear set, the method including:
The motor controller sends the information of the rotating speed and the output torque of the motor to the automatic gearbox control unit;
The automatic gearbox control unit controls the second clutch to be connected with the planetary gear set and to transmit power under the driving of the motor according to the information of the rotating speed and the output torque of the motor, controls the first clutch to be disconnected with the planetary gear set, and controls the third clutch to be combined with the planetary gear set after the first clutch is disconnected with the planetary gear set so as to complete gear shifting.
In an option of the preferred embodiment of the present invention, the method further comprises:
After the first clutch is disengaged from the planetary gear set, the automatic transmission control unit controls the first clutch to move freely; and
the automatic gearbox control unit detects whether the combining torque of the third clutch and the planetary gear set meets the power transmission requirement, and if the combining torque of the third clutch and the planetary gear set meets the power transmission requirement, the second clutch is controlled to move freely in an overrunning mode, and the third clutch transmits power.
In an option of the preferred embodiment of the present invention, the power control system further comprises a vehicle controller, and before the step of the motor controller sending information of the rotation speed and the output torque of the motor to the automatic transmission control unit, the method further comprises:
the vehicle control unit (VCU, Veh i c l e Contro l Un it) detects gear information, calculates the accelerator opening according to the gear information, calculates the rotating speed and output torque information of the motor according to the accelerator opening and sends the rotating speed and output torque information to the motor controller.
in an option of the preferred embodiment of the present invention, the method further comprises:
and the motor controller calculates the power for driving the motor to rotate according to the rotating speed and the output torque information, and controls the motor to rotate according to the power.
In an option of the preferred embodiment of the present invention, before the step of detecting the gear information by the vehicle control unit, the method includes:
The vehicle control unit detects whether a power control system has a fault, and when the power control system does not have the fault, the vehicle control unit executes a step of detecting gear information.
In an option of the preferred embodiment of the present invention, the method further comprises:
And when the power control system has a fault, storing fault information, and displaying the fault information to prompt a driver.
The preferred embodiment of the present invention further provides a power control system, comprising a motor, an automatic transmission and an automatic transmission control unit, wherein the automatic transmission comprises a planetary gear set, a first clutch, a second clutch and a third clutch;
The motor with automatic gearbox's input shaft, just planetary gear set up in automatic gearbox's input shaft, first clutch, second clutch and third clutch set up in planetary gear set just can be in under automatic gearbox control unit's control with planetary gear set combines in order to realize the gear switch.
In an option of a preferred embodiment of the present invention, the first clutch and the third clutch are multi-plate clutches, the second clutch is a one-way clutch, and the motor is a high-speed motor.
compared with the prior art, the embodiment of the invention provides a power control method and a power control system, wherein the power control system realizes power transmission in the gear shifting process by adopting a mode of matching a motor and a two-gear automatic gearbox, so that the overall performance of the power control system can be effectively improved, and the power consumption and the cost of the motor are reduced. Meanwhile, the invention can effectively prolong the whole cruising ability of the electric vehicle.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
fig. 1 is a schematic block diagram of a power control system according to an embodiment of the present invention.
fig. 2 is a schematic flow chart of a power control method applied to the power control system shown in fig. 1 according to an embodiment of the present invention.
Fig. 3 is a schematic flow chart of a power control method applied to an automatic transmission control unit according to an embodiment of the invention.
FIG. 4 is another schematic flow chart of a power control method according to an embodiment of the present invention
Icon: 10-a power control system; 11-vehicle control unit; 12-a motor controller; 13-automatic gearbox control unit; 14-an automatic gearbox; 15-motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
As shown in fig. 1, a block diagram of a power control system 10 according to an embodiment of the present invention is provided, where the power control system 10 includes an automatic transmission control unit 13, an automatic transmission 14, and an electric motor 15, and the automatic transmission 14 includes a planetary gear set, a first clutch, a second clutch, and a third clutch. The motor 15 is connected to an input shaft of the automatic transmission 14, the planetary gear set is disposed on the input shaft of the automatic transmission 14, and the first clutch, the second clutch, and the third clutch are disposed on the planetary gear set.
The first clutch and the third clutch may be multi-plate clutches, and the second clutch may be a one-way clutch, such as a mechanical one-way clutch, which is not limited herein. In addition, the motor 15 can be a high-speed motor 15 with the rotating speed exceeding 10000r/min, the power density of the motor 15 of the high-speed motor 15 is high, but the volume of the motor 15 is far smaller than that of the motor 15 with ordinary power, so that the material can be effectively saved, and the cost can be reduced.
it should be noted that the automatic transmission 14 is a two-speed automatic transmission 14. Therefore, in the embodiment of the invention, the overall performance of the electric vehicle can be effectively improved and the power consumption and the manufacturing cost of the motor 15 can be reduced by adopting a mode that the high-speed motor 15 is matched with the two-gear automatic gearbox 14 for power transmission. Meanwhile, compared with the existing direct-drive power driving system, the power control system 10 provided in the embodiment can prolong the endurance of the electric vehicle.
The automatic transmission control unit 13 is configured to control the automatic transmission 14 to implement gear shifting according to the received rotation speed information and the output torque information, such as shifting from a low gear to a high gear or shifting from a high gear to a low gear.
In addition, the power control system 10 further includes a motor controller 12 and a vehicle control unit 11, the vehicle control unit 11 is connected to the motor controller 12 and the automatic transmission control unit 13, and the electrode controller is connected to the motor 15. The vehicle control unit 11 is configured to detect state information of the power control system 10 and gear information of the electric vehicle, calculate an accelerator opening according to the gear information, further obtain power information during gear switching and rotation speed information and output torque of the motor 15, send the power information during gear switching to the motor controller 12 in a power request manner, and send the rotation speed information and the output torque to the automatic transmission control unit 13.
The motor controller 12 controls the motor 15 to rotate according to the received power request.
Further, based on the description and design of the power control system 10, as shown in fig. 2, the embodiment of the present invention further provides a power control method applied to the power control system 10, and the specific steps and flow of the power control method will be described below with reference to fig. 2.
In step S10, the vehicle control unit 11 detects whether the power control system 10 has a fault, and executes step S12 if no fault information exists in the power control system 10, otherwise executes step S11.
when the vehicle control unit 11 detects whether the power control system 10 has a fault, the detection may be performed only when the electric vehicle is powered on and started, or may be performed during shifting or running of the electric vehicle, which is not limited herein.
in addition, the vehicle control unit 11 is used as a core electronic control unit of a vehicle control decision of the electric vehicle, and has functions of vehicle system fault diagnosis protection and storage, for example, after vehicle state information is monitored and judged, such as vehicle speed, temperature and the like, an operation state control instruction of the vehicle is sent to the power system and the power battery system.
And step S11, when a fault exists in the power control system 10, storing the fault information and displaying the fault information to prompt the driver.
in the embodiment of the invention, if the vehicle control unit 11 detects that the fault information exists in the power control system 10, the fault type and the like are stored and displayed, so that a driver can repair the fault in time according to the fault prompt information.
In step S12, the vehicle control unit 11 detects the gear information and calculates an accelerator opening according to the gear information, and calculates the rotational speed and output torque information of the motor 15 according to the accelerator opening and sends the rotational speed and output torque information to the motor controller 12.
In step S13, the motor controller 12 calculates power for driving the motor 15 to rotate according to the rotation speed and the output torque information, and controls the motor 15 to rotate according to the power.
in step S14, the motor controller 12 sends information on the rotation speed of the motor 15 and information on the output torque to the automatic transmission control unit 13.
In step S15, the automatic transmission control unit 13 controls the second clutch to remain connected to the planetary gear set and to transmit power under the driving of the motor 15, and controls the first clutch to be disconnected from the planetary gear set, and controls the third clutch to be engaged with the planetary gear set after the first clutch is disconnected from the planetary gear set, so as to complete gear shifting, according to the information of the rotational speed and the output torque of the motor 15. .
Wherein, automatic transmission control unit 13 control first clutch with when planetary gear set carries out instantaneous disengagement, the speed of disengagement can reach within 50ms, simultaneously, is controlling the third clutch with planetary gear set combines, and its joint speed can reach about 300ms, can promote the whole car dynamic performance of electric motor car by a wide margin, and its acceleration and climbing slope also all have great promotion.
In addition, in the embodiment of the present invention, after the first clutch is disengaged from the planetary gear set, the automatic transmission control unit 13 controls the first clutch to move freely; and
The automatic transmission control unit 13 detects whether the combining torque of the third clutch and the planetary gear set has satisfied the power transmission requirement, and if the combining torque has satisfied the power transmission requirement, controls the second clutch to perform overrunning free movement, and the third clutch performs power transmission.
The criterion for determining whether the combined torque has satisfied the power transmission requirement may be determined according to the received rotation speed and output torque of the motor 15, and this embodiment is not limited herein.
Further, based on the description of the above power control method, please refer to fig. 3 and fig. 4, the preferred embodiment of the present invention further provides a power control method applied to an automatic control box unit, and the specific steps and flow of the power control method will be described below with reference to fig. 3 and fig. 4.
In step S20, the rotation speed and output torque information of the motor 15 sent by the motor controller 12 are received.
And step S21, controlling the second clutch to be connected with the planetary gear set and to transmit power under the driving of the motor 15 according to the information of the rotation speed and the output torque of the motor 15, and controlling the first clutch to be disconnected from the planetary gear set, and controlling the third clutch to be combined with the planetary gear set after the first clutch is disconnected from the planetary gear set to complete gear shifting.
Step S22, controlling the first clutch to move freely after the first clutch is disengaged from the planetary gear set.
and step S23, detecting whether the combining torque of the third clutch and the planetary gear set meets the power transmission requirement, if so, controlling the second clutch to perform overrunning free movement, and controlling the third clutch to perform power transmission.
The steps S21 to S23 have the same technical features as the steps S14 and S15, and reference may be specifically made to the description of the steps S14 and S15, which is not described herein again.
In summary, embodiments of the present invention provide a power control method and system, where the power control system 10 uses a manner in which a motor 15 is matched with a two-gear automatic transmission 14 to implement power transmission during a gear shifting process, so as to effectively improve the overall performance of the power control system 10 and reduce power consumption and cost of the motor 15. Meanwhile, the invention can effectively prolong the whole cruising ability of the electric vehicle.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus and method embodiments described above are illustrative only, as the flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, an electronic device, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only an alternative embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A power control method applied to an automatic transmission control unit connected to an automatic transmission including a planetary gear set, a first clutch, a second clutch, and a third clutch, an input shaft of the automatic transmission being connected to a motor, and the planetary gear set being provided to the input shaft of the automatic transmission, the first clutch, the second clutch, and the third clutch being provided to the planetary gear set, the method comprising:
Receiving the information of the rotating speed and the output torque of the motor sent by a motor controller;
Controlling the second clutch to be connected with the planetary gear set and to transmit power under the driving of the motor according to the information of the rotating speed and the output torque of the motor, and controlling the first clutch to be disconnected from the planetary gear set and to freely move after the first clutch is disconnected from the planetary gear set;
And detecting whether the combining torque of the third clutch and the planetary gear set meets the power transmission requirement, if so, controlling the second clutch to perform overrunning free motion, and controlling the third clutch to combine with the planetary gear set to complete gear switching.
2. A power control method is applied to a power control system comprising a motor controller, a motor, an automatic gearbox and an automatic gearbox control unit, wherein the automatic gearbox comprises a planetary gear set, a first clutch, a second clutch and a third clutch, the motor is connected with an input shaft of the automatic gearbox, the planetary gear set is arranged on the input shaft of the automatic gearbox, the first clutch, the second clutch and the third clutch are arranged on the planetary gear set, and the method comprises the following steps:
the motor controller sends the information of the rotating speed and the output torque of the motor to the automatic gearbox control unit;
The automatic gearbox control unit controls the second clutch to be connected with the planetary gear set and to transmit power under the driving of the motor according to the information of the rotating speed and the output torque of the motor, controls the first clutch to be disconnected with the planetary gear set, and controls the first clutch to move freely after the first clutch is disconnected with the planetary gear set;
the automatic gearbox control unit detects whether the combining torque of the third clutch and the planetary gear set meets the power transmission requirement, and if the combining torque of the third clutch and the planetary gear set meets the power transmission requirement, the second clutch is controlled to move freely in an overrunning mode, and the third clutch and the planetary gear set are combined to complete gear switching.
3. the power control method of claim 2, wherein the power control system further comprises a vehicle control unit, and prior to the step of the motor controller sending the rotational speed and output torque information of the electric motor to the automatic transmission control unit, the method further comprises:
The vehicle control unit detects gear information, calculates the accelerator opening according to the gear information, calculates the rotating speed and output torque information of the motor according to the accelerator opening and sends the rotating speed and output torque information to the motor controller.
4. The power control method according to claim 3, characterized by further comprising:
and the motor controller calculates the power for driving the motor to rotate according to the rotating speed and the output torque information, and controls the motor to rotate according to the power.
5. The power control method according to claim 3, characterized in that, before the step of the vehicle control unit detecting gear information, the method includes:
the vehicle control unit detects whether a power control system has a fault, and when the power control system does not have the fault, the vehicle control unit executes a step of detecting gear information.
6. The power control method according to claim 5, characterized by further comprising:
And when the power control system has a fault, storing fault information, and displaying the fault information to prompt a driver.
7. a power control system is characterized by comprising a motor, an automatic gearbox and an automatic gearbox control unit, wherein the automatic gearbox comprises a planetary gear set, a first clutch, a second clutch and a third clutch;
The motor is connected with an input shaft of the automatic gearbox, the planetary gear set is arranged on the input shaft of the automatic gearbox, and the first clutch, the second clutch and the third clutch are arranged on the planetary gear set and can be combined with the planetary gear set under the control of the automatic gearbox control unit to realize gear switching;
The motor controller sends the information of the rotating speed and the output torque of the motor to the automatic gearbox control unit;
the automatic gearbox control unit controls the second clutch to be connected with the planetary gear set and to transmit power under the driving of the motor according to the information of the rotating speed and the output torque of the motor, controls the first clutch to be disconnected with the planetary gear set, and controls the first clutch to move freely after the first clutch is disconnected with the planetary gear set;
The automatic gearbox control unit detects whether the combining torque of the third clutch and the planetary gear set meets the power transmission requirement, and if the combining torque of the third clutch and the planetary gear set meets the power transmission requirement, the second clutch is controlled to move freely in an overrunning mode, and the third clutch and the planetary gear set are combined to complete gear switching.
8. the power control system of claim 7, wherein the first clutch and the third clutch are multi-plate clutches, the second clutch is a one-way clutch, and the electric machine is a high-speed electric machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400769.2A CN108128213B (en) | 2017-12-22 | 2017-12-22 | Power control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400769.2A CN108128213B (en) | 2017-12-22 | 2017-12-22 | Power control method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108128213A CN108128213A (en) | 2018-06-08 |
| CN108128213B true CN108128213B (en) | 2019-12-17 |
Family
ID=62392081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711400769.2A Active CN108128213B (en) | 2017-12-22 | 2017-12-22 | Power control method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108128213B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233033A (en) * | 2005-10-26 | 2008-07-30 | 爱信艾达株式会社 | Electric vehicle drive control device and control method therefor |
| CN101233032A (en) * | 2005-10-26 | 2008-07-30 | 爱信艾达株式会社 | Electric vehicle drive control device and control method therefor |
| CN102803041A (en) * | 2009-06-17 | 2012-11-28 | 丰田自动车株式会社 | Vehicular shift control device |
| CN103998270A (en) * | 2012-02-24 | 2014-08-20 | 爱信艾达株式会社 | Control device |
| CN105128700A (en) * | 2015-09-10 | 2015-12-09 | 福建工程学院 | Double-power system of electric vehicle and control method |
| CN106183797A (en) * | 2016-05-25 | 2016-12-07 | 广州市新域动力技术有限公司 | With the fast pure power-driven power system of pivoted arm automatic disc two |
| CN107054070A (en) * | 2017-04-14 | 2017-08-18 | 重庆青山工业有限责任公司 | A kind of pure electric vehicle power system |
| CN107255159A (en) * | 2017-05-18 | 2017-10-17 | 上海蔚来汽车有限公司 | The shift control method and shifting control system of two-gear automatic speed changing case |
-
2017
- 2017-12-22 CN CN201711400769.2A patent/CN108128213B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233033A (en) * | 2005-10-26 | 2008-07-30 | 爱信艾达株式会社 | Electric vehicle drive control device and control method therefor |
| CN101233032A (en) * | 2005-10-26 | 2008-07-30 | 爱信艾达株式会社 | Electric vehicle drive control device and control method therefor |
| CN102803041A (en) * | 2009-06-17 | 2012-11-28 | 丰田自动车株式会社 | Vehicular shift control device |
| CN103998270A (en) * | 2012-02-24 | 2014-08-20 | 爱信艾达株式会社 | Control device |
| CN105128700A (en) * | 2015-09-10 | 2015-12-09 | 福建工程学院 | Double-power system of electric vehicle and control method |
| CN106183797A (en) * | 2016-05-25 | 2016-12-07 | 广州市新域动力技术有限公司 | With the fast pure power-driven power system of pivoted arm automatic disc two |
| CN107054070A (en) * | 2017-04-14 | 2017-08-18 | 重庆青山工业有限责任公司 | A kind of pure electric vehicle power system |
| CN107255159A (en) * | 2017-05-18 | 2017-10-17 | 上海蔚来汽车有限公司 | The shift control method and shifting control system of two-gear automatic speed changing case |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108128213A (en) | 2018-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101209711B (en) | Mode changeover control device for a hybrid vehicle | |
| US9650033B2 (en) | Vehicle, a hybrid power system thereof and a control method therefor | |
| US9889841B2 (en) | Method and system for starting engine of hybrid vehicle | |
| EP1860012A2 (en) | Engine Start Control | |
| JP2013071551A (en) | Control apparatus of hybrid vehicle | |
| US20140343771A1 (en) | System and method of converting driving mode and controlling shifting of hybrid vehicle | |
| CN106064622B (en) | Hybrid/electric vehicle motor control | |
| CN107097779A (en) | The control method and device of hybrid electric vehicle | |
| CN102009652A (en) | Method for controlling hybrid electric vehicle to enter hybrid drive mode from pure electric mode | |
| CN108275141B (en) | Control method for torque pre-control of hybrid double-clutch automatic gearbox | |
| EP3000679A2 (en) | Method of controlling engine speed of hybrid vehicle | |
| CN106184209B (en) | Apparatus and method for preventing shutdown in limp-home mode driving | |
| CN104220677B (en) | Anti-rollback system for mobile machine | |
| JP4839960B2 (en) | VEHICLE POWER DEVICE AND CONTROL DEVICE THEREOF | |
| US20170120898A1 (en) | Apparatus and method for shift control of hybrid vehicle | |
| JP2013049359A (en) | Control device of hybrid vehicle | |
| CN112092612B (en) | Four-wheel drive pure electric vehicle power system | |
| JP6067218B2 (en) | Control device for vehicle drive system | |
| JP5182072B2 (en) | Oil pump drive device for hybrid vehicle | |
| SE0950545A1 (en) | Method and system for controlling a vehicle | |
| CN108128213B (en) | Power control method and system | |
| KR20180070341A (en) | Hybrid vehicle and method of controlling mode transition | |
| JP2010228672A (en) | Vehicle system | |
| JP2009038898A (en) | Determining device of secondary battery deterioration | |
| CN111231985B (en) | Electronic oil pump failure processing method and device for power automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |