CN114987437A - Hybrid vehicle driving mode adjusting method, device, equipment and storage medium - Google Patents
Hybrid vehicle driving mode adjusting method, device, equipment and storage medium Download PDFInfo
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- CN114987437A CN114987437A CN202210436168.1A CN202210436168A CN114987437A CN 114987437 A CN114987437 A CN 114987437A CN 202210436168 A CN202210436168 A CN 202210436168A CN 114987437 A CN114987437 A CN 114987437A
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- 238000000926 separation method Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 194
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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
- B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
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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
-
- 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
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- 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
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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
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
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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
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/02—Clutches
- B60W2510/0208—Clutch engagement state, e.g. engaged or disengaged
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0657—Engine torque
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
- B60W2510/081—Speed
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
- B60W2510/083—Torque
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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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- Engineering & Computer Science (AREA)
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- Automation & Control Theory (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The invention discloses a method, a device, equipment and a storage medium for adjusting the running mode of a hybrid vehicle, wherein the method comprises the following steps: when a clutch control instruction is received, determining the regulating current of the electromagnetic valve according to the clutch control instruction; adjusting the opening degree of the oil pressure electromagnetic valve according to the electromagnetic valve adjusting current, wherein the opening degree of the oil pressure electromagnetic valve influences the clutch state of the vehicle clutch; and when the clutch state meets a preset condition, judging that the running mode of the hybrid vehicle is adjusted. The invention determines the electromagnetic valve regulating current according to the clutch control instruction, regulates the opening of the oil pressure electromagnetic valve according to the electromagnetic valve regulating current so as to regulate the clutch state of the vehicle clutch, judges that the running mode of the hybrid vehicle is regulated to be finished when the clutch state meets the preset condition, and regulates the clutch state through regulating the oil pressure electromagnetic valve so as to finish the regulation of the running mode of the hybrid vehicle, thereby improving the accuracy of the control of the running mode of the hybrid vehicle.
Description
Technical Field
The invention relates to the technical field of hybrid vehicles, in particular to a method, a device, equipment and a storage medium for adjusting a running mode of a hybrid vehicle.
Background
The traditional fuel oil vehicle has the fuel-saving capability which is the main performance index of the fuel oil engine, and the fuel oil engine with the same power performance has the higher efficiency and the stronger fuel-saving capability. However, the existing engine energy-saving capability improvement optimization has great limitation, the efficiency of the engine is low under the working condition of low rotating speed, the fuel economy is poor, the torque is also low, and the engine dynamic performance is poor. Compared with an engine, the motor has the advantages of high efficiency, large high-efficiency interval, high conversion efficiency and the like, the motor and the engine can effectively avoid the low-rotating-speed high-oil-consumption interval of the engine after being coupled, and the braking energy recovery is realized to further reduce the actual oil consumption.
Therefore, the hybrid power technology which can utilize fossil fuel and a power battery for automobile driving is an automobile power system technology with obvious comprehensive advantages on the basis of the cooperation of the engine, the motor and the power battery, and has the functions of saving oil, improving the automobile dynamic property and driving experience. The hybrid power technology is adopted, the advantages of high efficiency of the motor, large high-efficiency interval, high conversion efficiency and the like are utilized, the motor and the engine are coupled to effectively avoid the low-rotating-speed high-oil-consumption interval of the engine, the hybrid power vehicle can realize a pure electric driving mode, a series driving mode and a parallel driving mode, and the technical problem of urgent need to be solved is how to improve the accuracy of the switching of the driving modes of the hybrid power vehicle.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a method, a device, equipment and a storage medium for adjusting a running mode of a hybrid vehicle, and aims to solve the technical problem of low accuracy of switching of a driving mode of the hybrid vehicle in the prior art.
To achieve the above object, the present invention provides a hybrid vehicle driving mode adjusting method, including the steps of:
when a clutch control instruction is received, determining the regulating current of the electromagnetic valve according to the clutch control instruction;
adjusting the opening degree of an oil pressure electromagnetic valve according to the electromagnetic valve adjusting current, wherein the opening degree of the oil pressure electromagnetic valve influences the clutch state of a vehicle clutch;
and when the clutch state meets a preset condition, judging that the running mode of the hybrid vehicle is adjusted.
Optionally, when a clutch control instruction is received, determining a solenoid valve adjustment current according to the clutch control instruction includes:
when the received clutch control instruction is a clutch combination instruction, determining a first target oil pressure of a vehicle clutch according to the clutch combination instruction, and controlling the vehicle clutch to enter a pre-charging control state from a separation state;
and determining the solenoid valve regulating current according to the first target oil pressure and oil pressure current mapping relation.
Optionally, the oil pressure solenoid comprises a clutch solenoid and a main oil pressure solenoid, the clutch state comprising an engaged state;
the said regulation of the opening degree to the oil pressure solenoid valve according to the said solenoid valve regulating current, the clutch state of the clutch of the said oil pressure solenoid valve influences the vehicle, including:
when speed regulation finishing information sent by a motor controller is received, the rotating speed difference between two ends of the vehicle clutch is obtained;
when the rotating speed difference is smaller than a first threshold value, controlling the vehicle clutch to enter an oil filling control state from the pre-oil filling control state;
when the vehicle clutch enters an oil filling control state, opening adjustment is carried out on the clutch electromagnetic valve and the main oil pressure electromagnetic valve according to the electromagnetic valve adjusting current, and the state of the vehicle clutch is influenced by the opening of the clutch electromagnetic valve and the main oil pressure electromagnetic valve;
and when the rotation speed difference between the two ends of the vehicle clutch is smaller than a second threshold value, determining to adjust the vehicle clutch to the combined state.
Optionally, after determining to adjust the vehicle clutch to the engaged state when the difference in the rotation speeds across the vehicle clutch is smaller than a second threshold, the method further includes:
acquiring a target torque transmitted by a vehicle controller when the vehicle clutch is adjusted to a combined state;
determining a target oil pressure of the vehicle clutch according to the target torque and torque oil pressure mapping relation;
determining a target current of the clutch solenoid valve according to the target oil pressure and oil pressure current mapping relation;
and dynamically adjusting the opening of the clutch solenoid valve according to the target current and the actual current of the clutch solenoid valve.
Optionally, the driving mode comprises a parallel drive mode;
when the clutch state meets the preset condition, the method for judging that the running mode of the hybrid vehicle is adjusted is completed, and the method comprises the following steps:
determining an oil pressure difference between a current clutch oil pressure of the vehicle clutch and the first target oil pressure;
and when the oil pressure difference is smaller than a first oil pressure threshold value, determining that the running mode of the hybrid vehicle is adjusted to the parallel driving mode.
Optionally, when a clutch control instruction is received, determining a solenoid valve adjustment current according to the clutch control instruction includes:
when the received clutch control command is a clutch release command, determining a second target oil pressure of the vehicle clutch according to the clutch release command;
and determining the solenoid valve regulating current according to the second target oil pressure and oil pressure current mapping relation.
Optionally, the driving modes include a pure electric driving mode and a series driving mode;
when the clutch state meets the preset condition, the method for judging that the running mode of the hybrid vehicle is adjusted is completed, and the method comprises the following steps:
determining whether a current clutch oil pressure of the vehicle clutch is less than the second target oil pressure;
and when the current clutch oil pressure is less than the second target oil pressure, determining that the running mode of the hybrid vehicle is adjusted to a pure electric driving mode or a series driving mode.
In addition, to achieve the above object, the present invention also provides a hybrid vehicle running mode adjusting apparatus, including:
the determining module is used for determining the regulating current of the electromagnetic valve according to the clutch control instruction when the clutch control instruction is received;
the adjusting module is used for adjusting the opening degree of the oil pressure electromagnetic valve according to the electromagnetic valve adjusting current, and the opening degree of the oil pressure electromagnetic valve influences the clutch state of the vehicle clutch;
and the judging module is used for judging that the running mode of the hybrid vehicle is adjusted when the clutch state meets the preset condition.
Further, to achieve the above object, the present invention also proposes a hybrid vehicle running mode adjusting apparatus comprising: a memory, a processor and a hybrid vehicle driving mode adjustment program stored on the memory and executable on the processor, the hybrid vehicle driving mode adjustment program being configured to implement the steps of the hybrid vehicle driving mode adjustment method as described above.
In order to achieve the above object, the present invention also proposes a storage medium having stored thereon a hybrid vehicle travel mode adjustment program that, when executed by a processor, implements the steps of the hybrid vehicle travel mode adjustment method as described above.
When a clutch control instruction is received, the current regulation of the electromagnetic valve is determined according to the clutch control instruction; adjusting the opening degree of an oil pressure electromagnetic valve according to the electromagnetic valve adjusting current, wherein the opening degree of the oil pressure electromagnetic valve influences the clutch state of a vehicle clutch; and when the clutch state meets a preset condition, judging that the running mode of the hybrid vehicle is adjusted. The invention determines the electromagnetic valve regulating current according to the clutch control instruction, regulates the opening of the oil pressure electromagnetic valve according to the electromagnetic valve regulating current so as to regulate the clutch state of the vehicle clutch, judges that the running mode of the hybrid vehicle is regulated to be finished when the clutch state reaches the preset condition, and regulates the clutch state through regulating the oil pressure electromagnetic valve so as to finish the regulation of the running mode of the hybrid vehicle, thereby improving the accuracy of the control of the running mode of the hybrid vehicle.
Drawings
Fig. 1 is a schematic configuration diagram of a hybrid vehicle driving mode adjustment apparatus of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a first embodiment of a hybrid vehicle driving mode adjustment method according to the present invention;
FIG. 3 is a hydraulic schematic diagram of a hybrid powertrain according to an embodiment of the method for adjusting a driving mode of a hybrid vehicle of the present invention;
FIG. 4 is a flowchart illustrating a second embodiment of a hybrid vehicle driving mode adjustment method according to the present invention;
fig. 5 is a block diagram showing the configuration of the first embodiment of the hybrid vehicle running mode adjusting apparatus according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a hybrid vehicle driving mode adjustment device according to a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the hybrid vehicle travel mode adjustment apparatus may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the hybrid vehicle driving mode adjustment apparatus and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a storage medium, may include therein an operating system, a network communication module, a user interface module, and a hybrid vehicle travel mode adjustment program.
In the hybrid vehicle travel mode adjustment apparatus shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the hybrid vehicle running mode adjustment device of the present invention may be provided in a hybrid vehicle running mode adjustment device that calls a hybrid vehicle running mode adjustment program stored in the memory 1005 through the processor 1001 and executes a hybrid vehicle running mode adjustment method provided by an embodiment of the present invention.
An embodiment of the present invention provides a method for adjusting a driving mode of a hybrid vehicle, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the method for adjusting a driving mode of a hybrid vehicle according to the present invention.
In this embodiment, the method for adjusting the driving mode of the hybrid vehicle includes the steps of:
step S10: and when a clutch control command is received, determining the regulating current of the electromagnetic valve according to the clutch control command.
It should be noted that the execution subject of the embodiment may be a computing service device with data processing, network communication and program running functions, such as an in-vehicle computer, a tablet computer, a personal computer, a mobile phone, etc., or an electronic device, a hybrid vehicle driving mode adjusting device, a transmission control unit, etc., capable of implementing the above functions. The present embodiment and the following embodiments will be described below by taking a transmission control unit as an example.
It is understood that a Transmission Control Unit (TCU) can also collect clutch oil pressure and main circuit oil pressure; in order to diagnose the faults of the clutch pressure sensor and the main oil pressure sensor, when a clutch control command is received, before the electromagnetic valve regulating current is determined according to the clutch control command, the method further comprises the following steps: acquiring a current signal sent by a sensor, and converting the current signal into monitoring pressure; and when the monitoring pressure is smaller than a pressure threshold value, judging that the sensor has a fault, and sending fault prompt information.
It should be understood that the current signals include a clutch pressure current signal and a main circuit pressure current signal; the monitoring pressure comprises clutch oil pressure and main loop oil pressure; the pressure thresholds include a clutch oil pressure threshold and a main circuit oil pressure threshold.
It is understood that the converting of the current signal to the monitored pressure may be determining a clutch oil pressure corresponding to the clutch pressure current signal according to a current oil pressure map, and determining a main circuit oil pressure corresponding to the main circuit pressure current signal according to a current oil pressure map.
In the specific implementation, the TCU acquires a clutch pressure current signal sent by a clutch pressure sensor, a main loop pressure current signal sent by a main oil pressure sensor, determines clutch oil pressure corresponding to the clutch pressure current signal and main loop oil pressure corresponding to the main loop pressure current signal according to a current oil pressure mapping relation, judges that the clutch pressure sensor has a fault when the clutch oil pressure is smaller than a clutch oil pressure threshold value, and sends fault prompt information of the clutch pressure sensor, and judges that the main oil pressure sensor has a fault when the main loop oil pressure is smaller than the main loop oil pressure threshold value, and sends fault prompt information of the main oil pressure sensor; when the sensor is not faulty, a clutch control command is received.
It should be understood that the clutch control command is sent to the TCU by a Vehicle Control Unit (VCU) depending on the current operating conditions of the Vehicle; the clutch control command may be a control command for controlling the disengagement or engagement of a clutch of the vehicle; the solenoid valve adjusting current may be a current for adjusting the opening degree of the oil pressure solenoid valve; determining the solenoid adjustment current based on the clutch control command may be determining a clutch state based on a type of the clutch control command, determining the solenoid adjustment current based on the clutch state.
Step S20: and adjusting the opening degree of the oil pressure electromagnetic valve according to the electromagnetic valve adjusting current, wherein the opening degree of the oil pressure electromagnetic valve influences the clutch state of the vehicle clutch.
It is understood that the oil pressure solenoid valve may be a solenoid valve capable of adjusting the oil pressure of the clutch; the clutch oil pressure changes with a change in the opening degree of the oil pressure solenoid valve, and the change in the clutch oil pressure affects the clutch state of the vehicle clutch.
Step S30: and when the clutch state meets a preset condition, judging that the running mode of the hybrid vehicle is adjusted.
It is to be understood that the preset condition may be a condition set in advance to judge whether the adjustment of the running mode of the vehicle is completed.
In the specific implementation, the TCU acquires a clutch pressure current signal sent by a clutch pressure sensor, acquires a main loop pressure current signal sent by a main oil pressure sensor, determines clutch oil pressure corresponding to the clutch pressure current signal and main loop oil pressure corresponding to the main loop pressure current signal according to a current oil pressure mapping relation, judges that the clutch pressure sensor has a fault when the clutch oil pressure is smaller than a clutch oil pressure threshold value, and sends fault prompt information of the clutch pressure sensor; when the oil pressure of the main loop is smaller than the oil pressure threshold of the main loop, judging that the main oil pressure sensor has a fault, and sending fault prompt information of the main oil pressure sensor; when the clutch oil pressure is greater than the clutch oil pressure threshold and the main loop oil pressure is greater than the main loop oil pressure threshold, a clutch control command is received, the clutch state is determined according to the type of the clutch control command, the electromagnetic valve regulating current is determined according to the clutch state, the opening degree of the electromagnetic valve for regulating the clutch oil pressure is regulated according to the electromagnetic valve regulating current, the clutch state is adjusted, and when the clutch state reaches a preset condition, the adjustment of the running mode of the hybrid vehicle is judged to be completed.
Further, in order to determine an accurate solenoid valve adjustment current, thereby improving the accuracy of the solenoid valve opening degree adjustment, the step S10 includes: when the received clutch control instruction is a clutch combination instruction, determining a first target oil pressure of a vehicle clutch according to the clutch combination instruction, and controlling the vehicle clutch to enter a pre-charge control state from a separation state; and determining the solenoid valve regulating current according to the first target oil pressure and oil pressure current mapping relation.
It is understood that the type of clutch control command includes a clutch engage command; the clutch engagement command may be a command to control engagement of the clutch; the first target oil pressure may be a clutch oil pressure when the clutch state is the engaged state; the pre-charging control state may be a state in which an oil passage between the main oil pressure solenoid valve and the clutch solenoid valve is first controlled to be full of oil.
In specific implementation, when a clutch control instruction sent by a VCU is received by a TCU and is a clutch combination instruction, the target state of a clutch is determined to be a combination state according to the clutch combination instruction, a corresponding first target oil pressure is determined according to the combination state, oil filling of an oil circuit between a main oil pressure electromagnetic valve and the clutch electromagnetic valve is controlled, and an electromagnetic valve adjusting current corresponding to the first target oil pressure is determined according to a mapping relation between the first target oil pressure and an oil pressure current.
Further, the accuracy of adjustment of the clutch state is improved, the oil pressure solenoid valve comprises a clutch solenoid valve and a main oil pressure solenoid valve, and the clutch state comprises a combined state; the said regulation of the opening degree to the oil pressure solenoid valve according to the said solenoid valve regulating current, the clutch state of the clutch of the said oil pressure solenoid valve influences the vehicle, including: when speed regulation finishing information sent by a motor controller is received, the rotating speed difference between two ends of the vehicle clutch is obtained; when the rotating speed difference is smaller than a first threshold value, controlling the vehicle clutch to enter an oil filling control state from the pre-oil filling control state; when the vehicle clutch enters an oil filling control state, opening adjustment is carried out on the clutch electromagnetic valve and the main oil pressure electromagnetic valve according to the electromagnetic valve adjusting current, and the state of the vehicle clutch is influenced by the opening of the clutch electromagnetic valve and the main oil pressure electromagnetic valve; and when the rotation speed difference between the two ends of the vehicle clutch is smaller than a second threshold value, determining to adjust the vehicle clutch to the combined state.
It can be understood that when the VCU sends the clutch combination instruction to the TCU, the VCU also sends a target rotation speed of the motor to the motor controller, the motor controller adjusts the rotation speed of the motor according to the target rotation speed of the motor and the actual rotation speed of the motor, and sends the speed regulation information to the TCU, and when the speed regulation is completed, the motor controller sends the speed regulation completion information to the TCU.
It should be appreciated that referring to fig. 3, fig. 3 is a hydraulic schematic diagram of a hybrid powertrain, wherein the TCU controls the vehicle clutch from a pre-charge control state to a charge control state to adjust clutch oil pressure when the difference in rotational speed across the clutch is less than a first threshold; the electromagnetic valve adjusting current comprises a clutch electromagnetic valve adjusting current and a main oil pressure electromagnetic valve adjusting current, the TCU adjusts the clutch opening according to the clutch electromagnetic valve adjusting current, adjusts the main oil pressure electromagnetic valve opening according to the main oil pressure electromagnetic valve adjusting current, the clutch oil pressure changes along with the adjustment of the clutch electromagnetic valve and the main oil pressure electromagnetic valve opening, the rotating speed difference of two ends of the vehicle clutch also changes, when the rotating speed difference of the two ends of the vehicle clutch is smaller than a second threshold value, the vehicle clutch is judged to be adjusted to a combined state, and the running mode of the hybrid vehicle is a parallel driving mode at the moment.
Further, in order to ensure that the clutch can be reliably engaged during torque transmission and avoid slip when the engine torque is greater than the clutch torque based on the output characteristic of the engine, the method for controlling the engine torque further comprises the following steps: acquiring a target torque transmitted by a vehicle controller when the vehicle clutch is adjusted to a combined state; determining a target oil pressure of the vehicle clutch according to the target torque and torque oil pressure mapping relation; determining a target current of the clutch solenoid valve according to the target oil pressure and oil pressure current mapping relation; and dynamically adjusting the opening of the clutch solenoid valve according to the target current and the actual current of the clutch solenoid valve.
It will be appreciated that to ensure that the vehicle clutch engagement is reliable, engine torque is delivered to the wheel ends and the TCU dynamically adjusts the clutch oil pressure based on the target torque delivered by the VCU as the vehicle clutch is adjusted to the engagement.
In the specific implementation, the TCU determines a target oil pressure corresponding to a target torque according to a mapping relation between the target torque and a torque oil pressure sent by the VCU, determines a target current corresponding to the target oil pressure according to a mapping relation between the target oil pressure and an oil pressure current, monitors an actual current fed back by the clutch solenoid valve, compares the target current with the actual current, reduces the current for controlling the clutch solenoid valve if the actual current is greater than the target current, and increases the current for controlling the clutch solenoid valve if the actual current is less than the target current, so that the dynamic adjustment of the opening of the clutch solenoid valve is realized, the torque transmitted by the clutch dynamically follows the torque of the engine, and the difference of the rotating speed of the clutch is ensured to be less than the threshold value of the rotating speed difference.
Further, in order to improve the accuracy of the adjustment of the running mode of the hybrid vehicle, the running mode includes a parallel driving mode; when the clutch state meets the preset condition, the method for judging that the running mode of the hybrid vehicle is adjusted is completed, and the method comprises the following steps: determining an oil pressure difference between a current clutch oil pressure of the vehicle clutch and the first target oil pressure; when the oil pressure difference is smaller than a first oil pressure threshold value, it is determined that the running mode of the hybrid vehicle is adjusted to the parallel drive mode.
In a particular implementation, the TCU determines an oil pressure difference between a current clutch oil pressure of a vehicle clutch and a first target oil pressure, and determines to adjust a formal mode of the hybrid vehicle to a parallel drive mode when the oil pressure difference is less than a first oil pressure threshold.
In the embodiment, when a clutch control instruction is received, the electromagnetic valve regulating current is determined according to the clutch control instruction; adjusting the opening degree of an oil pressure electromagnetic valve according to the electromagnetic valve adjusting current, wherein the opening degree of the oil pressure electromagnetic valve influences the clutch state of a vehicle clutch; and when the clutch state meets a preset condition, judging that the running mode of the hybrid vehicle is adjusted. According to the method and the device, the electromagnetic valve regulating current is determined according to the clutch control command, the opening degree of the oil pressure electromagnetic valve is regulated according to the electromagnetic valve regulating current so as to regulate the clutch state of the vehicle clutch, when the clutch state reaches the preset condition, the hybrid vehicle running mode is judged to be regulated, the clutch state can be regulated through regulating the oil pressure electromagnetic valve so as to regulate the hybrid vehicle running mode, and the accuracy of controlling the hybrid vehicle running mode is improved.
Referring to fig. 4, fig. 4 is a flowchart illustrating a hybrid vehicle driving mode adjustment method according to a second embodiment of the present invention.
Based on the first embodiment described above, in the present embodiment, the step S10 includes:
step S101: and when the received clutch control command is a clutch release command, determining a second target oil pressure of the vehicle clutch according to the clutch release command.
It will be appreciated that the type of clutch control command includes a clutch disengagement command, which may be a command to control disengagement of a vehicle clutch; the determining of the second target oil pressure of the vehicle clutch based on the clutch release command may be determining that the final state of the clutch is a released state based on the clutch release command, and setting a clutch oil pressure corresponding to the released state as the second target oil pressure.
Step S102: and determining the solenoid valve regulating current according to the second target oil pressure and oil pressure current mapping relation.
In a specific implementation, when the clutch control command sent by the VCU is a clutch release command, the TCU determines that the final state of the clutch is a release state according to the clutch release command, uses the clutch oil pressure corresponding to the release state as a second target oil pressure, and determines the solenoid valve adjustment currents corresponding to the clutch solenoid valve and the main oil pressure solenoid valve according to the second target oil pressure and the oil pressure current mapping relationship.
Further, in order to improve the accuracy of the adjustment of the running mode of the hybrid vehicle, the running mode comprises a pure electric driving mode and a series driving mode; when the clutch state meets the preset condition, the method for judging that the running mode of the hybrid vehicle is adjusted is completed, and the method comprises the following steps: determining whether a current clutch oil pressure of the vehicle clutch is less than the second target oil pressure; and when the current clutch oil pressure is less than the second target oil pressure, determining that the running mode of the hybrid vehicle is adjusted to a pure electric driving mode or a series driving mode.
It can be understood that the TCU adjusts the clutch oil pressure by adjusting the current through the solenoid valve, and adjusts the clutch state by adjusting the clutch oil pressure; when the clutch oil pressure is less than the second target oil pressure, it is determined that the clutch is disengaged, and at this time, the clutch state is a disengaged state, and the travel mode of the hybrid vehicle is adjusted to the pure electric drive mode or the series drive mode.
In the embodiment, when the received clutch control command is a clutch release command, a second target oil pressure of a vehicle clutch is determined according to the clutch release command; and determining the solenoid valve regulating current according to the second target oil pressure and oil pressure current mapping relation. According to the embodiment, the second target oil pressure is determined according to the clutch release instruction, the electromagnetic valve adjusting current is determined according to the mapping relation between the second target oil pressure and the oil pressure current, and the opening degree of the clutch electromagnetic valve and the opening degree of the main oil pressure electromagnetic valve are adjusted through the electromagnetic valve adjusting current, so that the clutch state is adjusted, and the accuracy of adjusting the running mode of the hybrid vehicle is improved.
Furthermore, an embodiment of the present invention also proposes a storage medium having stored thereon a hybrid vehicle travel mode adjustment program that, when executed by a processor, implements the steps of the hybrid vehicle travel mode adjustment method as described above.
Referring to fig. 5, fig. 5 is a block diagram showing a first embodiment of the hybrid vehicle running mode adjusting apparatus according to the present invention.
As shown in fig. 5, a hybrid vehicle driving mode adjustment apparatus according to an embodiment of the present invention includes:
the determining module 10 is configured to determine, when a clutch control instruction is received, a solenoid valve adjustment current according to the clutch control instruction;
the adjusting module 20 is used for adjusting the opening degree of the oil pressure solenoid valve according to the solenoid valve adjusting current, wherein the opening degree of the oil pressure solenoid valve influences the clutch state of the vehicle clutch;
and the determination module 30 is used for determining that the running mode adjustment of the hybrid vehicle is finished when the clutch state meets the preset condition.
In the embodiment, when a clutch control instruction is received, the electromagnetic valve regulating current is determined according to the clutch control instruction; adjusting the opening of an oil pressure electromagnetic valve according to the electromagnetic valve adjusting current, wherein the opening of the oil pressure electromagnetic valve influences the clutch state of a vehicle clutch; and when the clutch state meets a preset condition, judging that the running mode of the hybrid vehicle is adjusted. According to the method and the device, the electromagnetic valve regulating current is determined according to the clutch control command, the opening degree of the oil pressure electromagnetic valve is regulated according to the electromagnetic valve regulating current so as to regulate the clutch state of the vehicle clutch, when the clutch state reaches the preset condition, the hybrid vehicle running mode is judged to be regulated, the clutch state can be regulated through regulating the oil pressure electromagnetic valve so as to regulate the hybrid vehicle running mode, and the accuracy of controlling the hybrid vehicle running mode is improved.
A second embodiment of the hybrid vehicle running mode adjustment apparatus of the present invention is proposed based on the above-described first embodiment of the hybrid vehicle running mode adjustment apparatus of the present invention.
In this embodiment, the determining module 10 is further configured to determine a first target oil pressure of a vehicle clutch according to a clutch engagement instruction when the received clutch control instruction is the clutch engagement instruction, and control the vehicle clutch to enter a pre-charge control state from a disengaged state; and determining the solenoid valve regulating current according to the first target oil pressure and oil pressure current mapping relation.
The adjusting module 20 is further configured to obtain a rotation speed difference between two ends of the vehicle clutch when receiving speed regulation completion information sent by the motor controller; when the rotating speed difference is smaller than a first threshold value, controlling the vehicle clutch to enter an oil filling control state from the pre-oil filling control state; when the vehicle clutch enters an oil filling control state, opening adjustment is carried out on the clutch electromagnetic valve and the main oil pressure electromagnetic valve according to the electromagnetic valve adjusting current, and the state of the vehicle clutch is influenced by the opening of the clutch electromagnetic valve and the main oil pressure electromagnetic valve; when the difference of the rotating speeds at two ends of the vehicle clutch is smaller than a second threshold value, determining to adjust the vehicle clutch to a combined state; the oil pressure solenoid valve includes a clutch solenoid valve and a main oil pressure solenoid valve, and the clutch state includes a combination state.
The adjusting module 20 is further configured to obtain a target torque sent by the vehicle controller when the vehicle clutch is adjusted to the engaged state; determining a target oil pressure of the vehicle clutch according to the target torque and torque oil pressure mapping relation; determining a target current of the clutch solenoid valve according to the target oil pressure and oil pressure current mapping relation; and dynamically adjusting the opening of the clutch solenoid valve according to the target current and the actual current of the clutch solenoid valve.
The determination module 30 is further configured to determine an oil pressure difference between a current clutch oil pressure of the vehicle clutch and the first target oil pressure; when the oil pressure difference is smaller than a first oil pressure threshold value, determining that the running mode of the hybrid vehicle is adjusted to the parallel driving mode; the running mode includes a parallel driving mode.
The determining module 10 is further configured to determine a second target oil pressure of the vehicle clutch according to the clutch release instruction when the received clutch control instruction is the clutch release instruction; and determining the solenoid valve regulating current according to the second target oil pressure and oil pressure current mapping relation.
The determination module 30 is further configured to determine whether a current clutch oil pressure of the vehicle clutch is less than the second target oil pressure; when the current clutch oil pressure is smaller than the second target oil pressure, determining that the running mode of the hybrid vehicle is adjusted to a pure electric driving mode or a series driving mode; the driving modes include a pure electric driving mode and a series driving mode.
Other embodiments or specific implementation manners of the hybrid vehicle driving mode adjusting device of the invention can refer to the above method embodiments, and are not described herein again.
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 system 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 system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., a rom/ram, a magnetic disk, an optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A hybrid vehicle travel mode adjustment method, characterized by comprising:
when a clutch control instruction is received, determining the regulating current of the electromagnetic valve according to the clutch control instruction;
adjusting the opening degree of an oil pressure electromagnetic valve according to the electromagnetic valve adjusting current, wherein the opening degree of the oil pressure electromagnetic valve influences the clutch state of a vehicle clutch;
and when the clutch state meets a preset condition, judging that the running mode of the hybrid vehicle is adjusted.
2. The method of claim 1, wherein determining a solenoid regulated current based on a clutch control command upon receipt of the clutch control command comprises:
when the received clutch control instruction is a clutch combination instruction, determining a first target oil pressure of a vehicle clutch according to the clutch combination instruction, and controlling the vehicle clutch to enter a pre-charging control state from a separation state;
and determining the solenoid valve regulating current according to the first target oil pressure and oil pressure current mapping relation.
3. The method of claim 2, wherein the oil pressure solenoid valve includes a clutch solenoid valve and a main oil pressure solenoid valve, the clutch state including an engaged state;
the said regulation of the opening degree to the oil pressure solenoid valve according to the said solenoid valve regulating current, the clutch state of the clutch of the said oil pressure solenoid valve influences the vehicle, including:
when speed regulation finishing information sent by a motor controller is received, the rotating speed difference between two ends of the vehicle clutch is obtained;
when the rotating speed difference is smaller than a first threshold value, controlling the vehicle clutch to enter an oil filling control state from the pre-oil filling control state;
when the vehicle clutch enters an oil filling control state, opening adjustment is carried out on the clutch electromagnetic valve and the main oil pressure electromagnetic valve according to the electromagnetic valve adjusting current, and the state of the vehicle clutch is influenced by the opening of the clutch electromagnetic valve and the main oil pressure electromagnetic valve;
and when the rotation speed difference between the two ends of the vehicle clutch is smaller than a second threshold value, determining to adjust the vehicle clutch to the combined state.
4. The method of claim 3, wherein after determining to adjust the vehicle clutch to the engaged state when the difference in rotational speed across the vehicle clutch is less than a second threshold, further comprising:
acquiring a target torque transmitted by a vehicle controller when the vehicle clutch is adjusted to a combined state;
determining a target oil pressure of the vehicle clutch according to the target torque and torque oil pressure mapping relation;
determining a target current of the clutch solenoid valve according to the target oil pressure and oil pressure current mapping relation;
and dynamically adjusting the opening of the clutch solenoid valve according to the target current and the actual current of the clutch solenoid valve.
5. The method of claim 4, wherein the driving mode comprises a parallel drive mode;
when the clutch state meets the preset condition, the method for judging the completion of the adjustment of the running mode of the hybrid vehicle comprises the following steps:
determining an oil pressure difference between a current clutch oil pressure of the vehicle clutch and the first target oil pressure;
when the oil pressure difference is smaller than a first oil pressure threshold value, it is determined that the running mode of the hybrid vehicle is adjusted to the parallel drive mode.
6. The method of claim 1, wherein determining a solenoid trim current based on the clutch control command upon receiving the clutch control command comprises:
when the received clutch control instruction is a clutch release instruction, determining a second target oil pressure of the vehicle clutch according to the clutch release instruction;
and determining the solenoid valve regulating current according to the second target oil pressure and oil pressure current mapping relation.
7. The method of claim 6, wherein the travel modes include an electric only drive mode and a series drive mode;
when the clutch state meets the preset condition, the method for judging that the running mode of the hybrid vehicle is adjusted is completed, and the method comprises the following steps:
determining whether a current clutch oil pressure of the vehicle clutch is less than the second target oil pressure;
and when the current clutch oil pressure is smaller than the second target oil pressure, determining that the running mode of the hybrid vehicle is adjusted to a pure electric driving mode or a series driving mode.
8. A hybrid vehicle travel mode adjustment apparatus, characterized in that the apparatus comprises:
the determining module is used for determining the regulating current of the electromagnetic valve according to the clutch control instruction when the clutch control instruction is received;
the adjusting module is used for adjusting the opening degree of the oil pressure electromagnetic valve according to the electromagnetic valve adjusting current, and the opening degree of the oil pressure electromagnetic valve influences the clutch state of the vehicle clutch;
and the judging module is used for judging that the running mode of the hybrid vehicle is adjusted when the clutch state meets the preset condition.
9. A hybrid vehicle travel mode adjustment apparatus, characterized in that the apparatus comprises: memory, a processor and a hybrid vehicle driving mode adjustment program stored on the memory and executable on the processor, the hybrid vehicle driving mode adjustment program being configured to implement the steps of the hybrid vehicle driving mode adjustment method according to any one of claims 1 to 7.
10. A storage medium, characterized in that the storage medium has stored thereon a hybrid vehicle travel mode adjustment program that, when executed by a processor, implements the steps of the hybrid vehicle travel mode adjustment method according to any one of claims 1 to 7.
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| CN202210436168.1A CN114987437A (en) | 2022-04-24 | 2022-04-24 | Hybrid vehicle driving mode adjusting method, device, equipment and storage medium |
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| CN115303252A (en) * | 2022-09-06 | 2022-11-08 | 广州汽车集团股份有限公司 | Hybrid vehicle, mode switching control method and device thereof, and storage medium |
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