CN113022572A - Control method and system for gear shifting of hybrid power system - Google Patents
Control method and system for gear shifting of hybrid power system Download PDFInfo
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- CN113022572A CN113022572A CN202110336300.7A CN202110336300A CN113022572A CN 113022572 A CN113022572 A CN 113022572A CN 202110336300 A CN202110336300 A CN 202110336300A CN 113022572 A CN113022572 A CN 113022572A
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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
- 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
- B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
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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
- 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
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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
- 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
- B60W10/11—Stepped gearings
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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
- B60W20/30—Control strategies involving selection of transmission gear ratio
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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
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The invention belongs to the technical field of vehicles, and particularly relates to a control method and a system for gear shifting of a hybrid power system, wherein the control method comprises the steps of receiving the current speed of a vehicle; controlling a gear shifting executing mechanism to act according to the current vehicle speed so as to drive a gearbox to shift gears; calculating the gear change rate of the gearbox in the gear engaging process; controlling the clutch to enter a semi-linkage state according to the gear change rate being smaller than a set value; receiving a gear position after gear shifting of a vehicle; and judging that the gear shifting of the hybrid power system is successful according to the fact that the gear position after gear shifting reaches the target gear position. According to the control method for shifting the hybrid power system, disclosed by the embodiment of the invention, the problem of gear engagement is solved in advance by detecting the change rate of the gear engagement position in the gear engagement process, the fault processing time is reduced, the influence of an engine on gear engagement is reduced by controlling the position change of the clutch, the gear engagement success rate is improved, and the power interruption is avoided.
Description
Technical Field
The invention belongs to the technical field of vehicles, and particularly relates to a control method and a system for gear shifting of a hybrid power system.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
The P2 parallel hybrid power system mainly has two conditions for gear shifting, one condition is pure electric gear shifting, namely, a clutch is separated from an engine and does not participate in work, and the condition that the gear shifting is high in reliability and difficult to fail is realized; the other hybrid gear shifting is that the clutch works in combination with the engine, and under the condition, gear engaging difficulty is easy to occur, so that gear shifting failure and power interruption are caused, and traveling is seriously influenced.
In the hybrid power system with the P2 structure, the motor is arranged between the clutch and the gearbox, and when the pure electric vehicle runs to a certain speed, the engine is driven by controlling the clutch to be combined. If the clutch is separated during gear shifting of the gearbox, the gear shifting success rate is high; if the clutch is in a working state in combination with the engine, the dynamic working characteristics of the engine are complex, accurate control cannot be achieved, gear shifting is prone to interference particularly in the gear engaging process, and the gear engaging failure condition occurs. If overtime occurs in the gear engaging process, the gear engaging is considered to be failed, the actions of speed regulation and gear engaging can be carried out again, and if the gear engaging still fails, the clutch is controlled to be separated, and the actions of speed regulation and gear engaging are carried out again. The whole process has long duration and the whole vehicle has long power interruption time, and can not meet the vehicle operation requirement.
Disclosure of Invention
The invention aims to at least solve the problems that in the prior art, due to the fact that multiple times of speed regulation are needed due to gear engaging failure, gear shifting duration is long, the power interruption time of the whole vehicle is long, and the operation requirement of the vehicle cannot be met.
The purpose is realized by the following technical scheme:
the first aspect of the present invention provides a method for controlling gear shifting of a hybrid power system, where the hybrid power system includes an engine, a driving motor, a transmission, a clutch, and a gear shifting actuator, and the method includes:
receiving a current vehicle speed of a vehicle;
controlling a gear shifting executing mechanism to act according to the current vehicle speed so as to drive a gearbox to shift gears;
calculating the gear change rate of the gearbox in the gear engaging process;
controlling the clutch to enter a semi-linkage state according to the gear change rate being smaller than a set value;
receiving a gear position after gear shifting of a vehicle;
and judging that the gear shifting of the hybrid power system is successful according to the fact that the gear position after gear shifting reaches the target gear position.
According to the control method for shifting the hybrid power system, the vehicle can be in the optimal working state when the vehicle speed of the vehicle is matched with the gear of the vehicle, and the economy of the vehicle is improved. Therefore, in the hybrid system, the actuator is controlled to automatically switch the shift position according to the current vehicle speed of the vehicle. Specifically, the current vehicle speed of the vehicle is received, and the gear shifting executing mechanism is controlled to act to drive the gearbox to shift gears according to the current vehicle speed. In the process of gear shifting of the gearbox, calculating the gear change rate of the gearbox, considering that the time required by the gear shifting process is long and intervention is needed if gear shifting fails according to the condition that the gear change rate is smaller than a set value, and considering that the time required by the gear shifting process is short and intervention is not needed according to the condition that the gear change rate is larger than or equal to the set value. After gear shifting fails, gear shifting needs to be carried out again, and the problem of gear shifting failure exists in the current state of a hybrid power system, so that the clutch is controlled to enter a semi-linkage state, namely, the clutch moves to a sliding friction point, the rotating speed difference is allowed to exist between the input end and the output end of the clutch, the friction plate on the pressure plate and the flywheel is in a sliding friction state, and part of power transmitted from the flywheel on the output shaft of the engine is transmitted to the gearbox. And after the clutch enters a semi-linkage state, controlling the actuating mechanism to continuously act to drive the gearbox to shift, continuously receiving the gear position after shifting, and judging that the hybrid power system successfully shifts gears according to the fact that the gear position after shifting reaches the target gear position. The gear engaging problem is solved in advance by detecting the change rate of the gear engaging position in the gear engaging process, the fault handling time is shortened, the influence of an engine on gear engaging is reduced by controlling the position change of a clutch, the gear engaging success rate is improved, and the power interruption is avoided.
In addition, the control method for shifting the hybrid system according to the embodiment of the invention can also have the following additional technical characteristics:
in some embodiments of the invention, receiving the gear change rate of the gearbox comprises:
receiving a current gear position of the gearbox;
receiving a target gear position matched with the current vehicle speed of the gearbox;
receiving the gear shifting duration of the gearbox matched with the current vehicle speed;
and calculating the gear change rate according to the current gear position, the target gear position and the duration.
In some embodiments of the invention, controlling the clutch into the semi-linked state in response to the gear change rate being less than the set value comprises:
receiving the working state of the clutch;
controlling the clutch to enter a semi-linkage state according to the working state of the clutch being a full linkage state and the gear change rate being less than a set value;
and controlling the engine to operate in a torque control mode according to the fact that the clutch enters a semi-linkage state, controlling the output torque of the engine to be zero, controlling the driving motor to operate in a rotating speed control mode, and enabling the rotating speed of the driving motor to be matched with the rotating speed of the motor corresponding to the target gear position.
In some embodiments of the present invention, the control method of hybrid powertrain shifting further comprises:
controlling a driving motor to operate in a torque control mode according to the success of gear shifting of the hybrid power system, and controlling a clutch to enter a full-linkage state;
receiving the working state of the clutch;
and controlling the engine to operate in a torque control mode according to the working state of the clutch as a full linkage state.
In some embodiments of the invention, the current gear position and the target gear position of the gearbox are detected by a position sensor in receiving the gear change rate of the gearbox.
In some embodiments of the present invention, the shift actuator is an electrically controlled shift actuator, a hydraulically actuated shift actuator, or a pneumatically actuated shift actuator.
A second aspect of the present invention provides a control system for a hybrid system shift for executing a control method for a hybrid system shift, including:
the receiving module is used for receiving the current speed of the vehicle and receiving the gear position of the vehicle after gear shifting;
the calculation module is used for calculating the gear change rate of the gearbox in the gear engaging process;
the control module is used for controlling the gear shifting executing mechanism to act according to the current vehicle speed so as to drive the gearbox to shift gears, and controlling the clutch to enter a semi-linkage state according to the gear change rate smaller than a set value;
and the judging module is used for judging that the gear shifting of the hybrid power system is successful according to the fact that the gear position after gear shifting reaches the target gear position.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a flow chart illustrating a method of controlling a hybrid powertrain shift in accordance with an embodiment of the present invention;
FIG. 2 is a schematic flow chart of the method of receiving gear change rates for the transmission of FIG. 1;
FIG. 3 is a schematic view of the process for controlling the clutch to enter a semi-linked state according to the gear change rate being less than the set value shown in FIG. 1;
fig. 4 is a complete flow chart of a control method for shifting a hybrid system according to an embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The Hybrid power system comprises an engine, a driving motor, a gearbox, a clutch and a gear shifting execution mechanism, wherein the engine is connected with the driving motor through the clutch, the driving motor is connected with the gearbox, the gearbox is connected with a drive axle, the Hybrid power system further comprises an ECU (Electronic Control Unit), a motor controller, a power battery, a TCU (Transmission Control Unit) and an HCU (Hybrid Control Unit), and the HCU, the ECU, the power battery and the TCU are connected through a CAN bus. When the driving motor outputs torque or rotating speed to drive the vehicle to a certain speed, the engine is involved in the driving process by controlling the combination of the clutch and the engine. In the process of shifting the hybrid power system, the clutch can work in combination with the operation of an engine vehicle, and the problems of gear shifting failure, power interruption and the like are caused due to the fact that gear shifting is difficult to achieve under the condition.
The current gear shifting process control comprises four stages of torque clearing, gear picking, speed regulation and gear engaging. Torque clearing, namely torque of the engine and the motor is reduced to a certain value; after meeting the torque clearing condition, the gear box executes gear-off action; after the gear-off action is finished, the speed of the motor is regulated so that the rotating speed of the engine and the motor is reduced/increased to a rotating speed value corresponding to a target gear; and when the rotating speeds of the motor and the engine meet the requirements, the gearbox starts to perform gear engaging work. When the vehicle runs normally, the clutch is in a fully-linked state at the minimum position, the pressure plate is tightly pressed on the friction plate of the flywheel, the friction force between the pressure plate and the friction plate is maximum, the input shaft and the output shaft keep relative static friction, and the rotating speeds of the input shaft and the output shaft are the same. The clutch is in the non-linkage state at the maximum position, the pressure plate is separated from the friction plate, and relative friction does not exist. The clutch is in a half-linkage state at the middle position, the input end and the output end of the clutch allow a rotation speed difference, one of the friction plates on the pressure plate and the flywheel is in a sliding friction state, and part of power transmitted from the flywheel on the output shaft of the engine is transmitted to the gearbox.
As shown in fig. 1 and 4, a control method of a hybrid system shift according to an embodiment of the present invention includes: receiving a current vehicle speed of a vehicle; controlling a gear shifting executing mechanism to act according to the current vehicle speed so as to drive a gearbox to shift gears; calculating the gear change rate of the gearbox in the gear engaging process; controlling the clutch to enter a semi-linkage state according to the gear change rate being smaller than a set value; receiving a gear position after gear shifting of a vehicle; and judging that the gear shifting of the hybrid power system is successful according to the fact that the gear position after gear shifting reaches the target gear position.
According to the control method for shifting the hybrid power system, the vehicle can be in the optimal working state when the vehicle speed of the vehicle is matched with the gear of the vehicle, and the economy of the vehicle is improved. Therefore, in the hybrid system, the actuator is controlled to automatically switch the shift position according to the current vehicle speed of the vehicle. Specifically, the current vehicle speed of the vehicle is received, and the gear shifting executing mechanism is controlled to act to drive the gearbox to shift gears according to the current vehicle speed. In the process of gear shifting of the gearbox, calculating the gear change rate of the gearbox, considering that the time required by the gear shifting process is long and intervention is needed if gear shifting fails according to the condition that the gear change rate is smaller than a set value, and considering that the time required by the gear shifting process is short and intervention is not needed according to the condition that the gear change rate is larger than or equal to the set value. After gear shifting fails, gear shifting needs to be carried out again, and the problem of gear shifting failure exists in the current state of a hybrid power system, so that the clutch is controlled to enter a semi-linkage state, namely, the clutch moves to a sliding friction point, the rotating speed difference is allowed to exist between the input end and the output end of the clutch, the friction plate on the pressure plate and the flywheel is in a sliding friction state, and part of power transmitted from the flywheel on the output shaft of the engine is transmitted to the gearbox. And after the clutch enters a semi-linkage state, controlling the actuating mechanism to continuously act to drive the gearbox to shift, continuously receiving the gear position after shifting, and judging that the hybrid power system successfully shifts gears according to the fact that the gear position after shifting reaches the target gear position. The gear engaging problem is solved in advance by detecting the change rate of the gear engaging position in the gear engaging process, the fault handling time is shortened, the influence of an engine on gear engaging is reduced by controlling the position change of a clutch, the gear engaging success rate is improved, and the power interruption is avoided.
The set value can be obtained through a plurality of tests before the vehicle leaves a factory. The target gear position is a fixed value and can be directly called by the HCU.
In some embodiments of the present invention, as shown in fig. 2 and 4, receiving the gear change rate of the transmission includes receiving a current gear position of the transmission; receiving a target gear position matched with the current vehicle speed of the gearbox; receiving the gear shifting duration of the gearbox matched with the current vehicle speed; and calculating the gear change rate according to the current gear position, the target gear position and the duration. The current gear position can be measured by a position sensor, and the target gear position is determined by the gear matched with the current vehicle speed. And after the difference between the target gear position and the current gear position is obtained, the ratio of the difference to the time length is the gear change rate, and the time length is calculated by a timer.
In some embodiments of the present invention, as shown in fig. 3 and 4, controlling the clutch to enter the semi-interlocked state includes receiving an operating state of the clutch, according to the gear change rate being less than the set value; receiving the working state of the clutch; controlling the clutch to enter a semi-linkage state according to the working state of the clutch being a full linkage state and the gear change rate being less than a set value; and controlling the engine to operate in a torque control mode according to the fact that the clutch enters a semi-linkage state, controlling the output torque of the engine to be zero, controlling the driving motor to operate in a rotating speed control mode, and enabling the rotating speed of the driving motor to be matched with the rotating speed of the motor corresponding to the target gear position. In order to ensure that the clutch can be successfully shifted as soon as possible after entering a semi-linkage state, the driving motor and the engine are controlled in different control modes. Specifically, the motor control is rotation speed control, the rotation speed of the driving motor is matched with the rotation speed of the motor corresponding to the target gear position, and in order to prevent torque existing in the gear engaging process, the motor rotation speed control needs to limit the motor torque within a certain range. The engine control is torque control, the torque demand of an output shaft of the engine is 0, and the influence of the torque of the engine on gear engagement is reduced. The driving motor and the engine adopt different control modes, power is input into the gearbox through the driving motor, rotating speed control is selected, rotating speed corresponding to gears can be accurately achieved, control is more accurate, gear engaging success rate is improved, and power interruption is avoided.
In some embodiments of the invention, the successful gear shifting of the hybrid power system is determined according to the gear position reaching the target gear position after gear shifting, and the output of the hybrid power system needs to be changed after the gear shifting is successful. As shown in fig. 4, the control method for shifting the hybrid power system further includes controlling the driving motor to operate in a torque control manner and controlling the clutch to enter a full-linkage state according to the success of shifting the hybrid power system; receiving the working state of the clutch; and controlling the engine to operate in a torque control mode according to the working state of the clutch as a full linkage state. In the gear shifting process, the torque of the output shaft of the engine is 0 and is output by the driving motor, and the vehicle speed of the vehicle is not required to be too high in the gear shifting process. After the gear shifting is successful, the control mode of the driving motor is converted from rotating speed control to torque control, the torque requirement of the whole vehicle is responded, the power requirement of the whole vehicle is met in time, the clutch is controlled to gradually move to the minimum position, and when the clutch is completely combined, the engine is involved and is driven together with the driving motor.
In addition, when the gear change rate is larger than or equal to the set value, the gear shifting process is considered to be smooth, intervention is not needed, and the position of the clutch is not needed to be controlled to change.
In some embodiments of the present invention, the shift actuator is an electrically controlled shift actuator, a hydraulically actuated shift actuator, or a pneumatically actuated shift actuator.
According to another embodiment of the present invention, a control system for shifting a hybrid system is provided, which is used for executing the control method for shifting a hybrid system provided in the above technical solution, and comprises:
the receiving module is used for receiving the current speed of the vehicle and receiving the gear position of the vehicle after gear shifting;
the calculation module is used for calculating the gear change rate of the gearbox in the gear engaging process;
the control module is used for controlling the gear shifting executing mechanism to act according to the current vehicle speed so as to drive the gearbox to shift gears, and controlling the clutch to enter a semi-linkage state according to the gear change rate smaller than a set value;
and the judging module is used for judging that the gear shifting of the hybrid power system is successful according to the fact that the gear position after gear shifting reaches the target gear position.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A control method for gear shifting of a hybrid power system, wherein the hybrid power system comprises an engine, a driving motor, a gearbox, a clutch and a gear shifting executing mechanism, and is characterized by comprising the following steps:
receiving a current vehicle speed of a vehicle;
controlling the gear shifting executing mechanism to act according to the current vehicle speed so as to drive the gearbox to shift gears;
calculating the gear change rate of the gearbox in the gear engaging process;
controlling the clutch to enter a semi-linkage state according to the fact that the gear change rate is smaller than a set value;
receiving a post-shift gear position of the vehicle;
and judging that the gear shifting of the hybrid power system is successful according to the fact that the gear position after gear shifting reaches the target gear position.
2. The method of claim 1, wherein the receiving the gear change rate of the transmission comprises:
receiving a current gear position of the gearbox;
receiving a target gear position matched with the current vehicle speed of the gearbox;
receiving the time length of the gear shifting of the gearbox matched with the current vehicle speed;
and calculating the gear change rate according to the current gear position, the target gear position and the duration.
3. The method of claim 2, wherein controlling the clutch into the semi-linked state based on the gear change rate being less than a set value comprises:
receiving the working state of the clutch;
controlling the clutch to enter a semi-linkage state according to the fact that the working state of the clutch is a full-linkage state and the gear change rate is smaller than the set value;
and controlling the engine to operate in a torque control mode according to the fact that the clutch enters a semi-linkage state, controlling the driving motor to operate in a rotating speed control mode when the output torque of the engine is zero, and enabling the rotating speed of the driving motor to be matched with the rotating speed of the motor corresponding to the target gear position.
4. The control method of hybrid powertrain shifting of claim 1, further comprising:
controlling the driving motor to operate in a torque control mode according to the successful gear shifting of the hybrid power system, and controlling the clutch to enter a full-linkage state;
receiving the working state of the clutch;
and controlling the engine to operate in a torque control mode according to the working state of the clutch as a full linkage state.
5. The control method of hybrid powertrain shifting of claim 2, wherein the current gear position and the target gear position of the transmission are detected by a position sensor in the receiving of the gear change rate of the transmission.
6. The hybrid powertrain system shift control method of claim 1, wherein the shift actuator is an electronically controlled shift actuator, a hydraulically actuated shift actuator, or a pneumatically actuated shift actuator.
7. A control system for a hybrid powertrain shift, a control method for performing a hybrid powertrain shift, comprising:
the receiving module is used for receiving the current speed of a vehicle and receiving the gear position of the vehicle after gear shifting;
the calculation module is used for calculating the gear change rate of the gearbox in the gear engaging process;
the control module is used for controlling a gear shifting executing mechanism to act according to the current vehicle speed so as to drive the gearbox to shift gears, and controlling the clutch to enter a semi-linkage state according to the gear change rate smaller than a set value;
and the judging module is used for judging that the gear shifting of the hybrid power system is successful according to the fact that the gear position after the gear shifting reaches the target gear position.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343782A (en) * | 1992-08-31 | 1994-09-06 | General Motors Corporation | Anti-flare method using offgoing slip speed and rate of change of slip-speed to determine pressure compensation for incoming clutch |
| US20120232764A1 (en) * | 2009-12-04 | 2012-09-13 | Honda Motor Co., Ltd. | Control apparatus for automatic transmission |
| US20160137190A1 (en) * | 2014-11-19 | 2016-05-19 | Ford Global Technologies, Llc | Controlling a clutch between an engine and a motor during a shift event in a hybrid vehicle |
| US20170197610A1 (en) * | 2016-01-13 | 2017-07-13 | Toyota Jidosha Kabushiki Kaisha | Control device for vehicle |
| US20170334447A1 (en) * | 2016-05-17 | 2017-11-23 | Hyundai Motor Company | Shift control apparatus and method of vehicle |
| CN110696831A (en) * | 2019-10-31 | 2020-01-17 | 浙江吉利汽车研究院有限公司 | Gear shifting control method and device for pure electric mode of hybrid electric vehicle |
| CN111845696A (en) * | 2020-07-23 | 2020-10-30 | 一汽解放青岛汽车有限公司 | Gear shifting control method of P2 hybrid power type vehicle |
-
2021
- 2021-03-29 CN CN202110336300.7A patent/CN113022572B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343782A (en) * | 1992-08-31 | 1994-09-06 | General Motors Corporation | Anti-flare method using offgoing slip speed and rate of change of slip-speed to determine pressure compensation for incoming clutch |
| US20120232764A1 (en) * | 2009-12-04 | 2012-09-13 | Honda Motor Co., Ltd. | Control apparatus for automatic transmission |
| US20160137190A1 (en) * | 2014-11-19 | 2016-05-19 | Ford Global Technologies, Llc | Controlling a clutch between an engine and a motor during a shift event in a hybrid vehicle |
| US20170197610A1 (en) * | 2016-01-13 | 2017-07-13 | Toyota Jidosha Kabushiki Kaisha | Control device for vehicle |
| US20170334447A1 (en) * | 2016-05-17 | 2017-11-23 | Hyundai Motor Company | Shift control apparatus and method of vehicle |
| CN110696831A (en) * | 2019-10-31 | 2020-01-17 | 浙江吉利汽车研究院有限公司 | Gear shifting control method and device for pure electric mode of hybrid electric vehicle |
| CN111845696A (en) * | 2020-07-23 | 2020-10-30 | 一汽解放青岛汽车有限公司 | Gear shifting control method of P2 hybrid power type vehicle |
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