CN113911102A - Idle speed control method, device, equipment and storage medium for hybrid vehicle - Google Patents

Idle speed control method, device, equipment and storage medium for hybrid vehicle Download PDF

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Publication number
CN113911102A
CN113911102A CN202111279388.XA CN202111279388A CN113911102A CN 113911102 A CN113911102 A CN 113911102A CN 202111279388 A CN202111279388 A CN 202111279388A CN 113911102 A CN113911102 A CN 113911102A
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target
idle speed
current
idle
speed
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CN113911102B (en
Inventor
王智颖
卜健
梅述池
覃嵩蘅
赵鑫
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Dongfeng Nissan Passenger Vehicle Co
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Dongfeng Nissan Passenger Vehicle Co
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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
    • 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
    • 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
    • B60W20/15—Control strategies specially adapted for achieving a particular effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/16—Introducing closed-loop corrections for idling
    • 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
    • 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
    • B60W2510/0638—Engine speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/068—Engine exhaust temperature
    • 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
    • B60W2510/24—Energy storage means
    • B60W2510/242—Energy storage means for electrical energy
    • B60W2510/244—Charge state
    • 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
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/08—Electric propulsion units
    • 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)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

The invention relates to the technical field of vehicle control, and discloses an idle speed control method, device, equipment and storage medium for a hybrid vehicle, wherein the method comprises the following steps: the engine controller acquires the current running state and the current running working condition of the target engine according to the current idle speed request information sent by the target vehicle controller; calculating the current running state and the current running condition through a preset idle speed calculation strategy to obtain a target idle speed; when receiving a confirmed rotating speed value of a target vehicle controller according to the target idling rotating speed, controlling a target engine to enter an idling speed of the confirmed rotating speed value; according to the invention, the current running state and the current running condition obtained according to the current idle speed request information are calculated through the preset idle speed calculation strategy, and the target engine is controlled according to the confirmed speed value of the calculated target idle speed, so that the efficiency and the accuracy of idle speed control can be effectively improved.

Description

Idle speed control method, device, equipment and storage medium for hybrid vehicle
Technical Field
The invention relates to the technical field of vehicle control, in particular to an idle speed control method, device, equipment and storage medium of a hybrid vehicle.
Background
Along with the stricter national oil consumption and emission regulation management, the increase of vehicle reserves and the enhancement of the environmental awareness of people, hybrid and REEV (remote electric vehicle) type vehicles are favored by more and more people due to the good performances of power performance, low energy consumption, low emission and the like, and because the hybrid and REEV type vehicles are provided with two drives of an engine and a motor, the problem that how to quickly and accurately coordinate and cooperate with the control of the engine and the motor under the idling condition is to be solved urgently at present, in order to solve the problem, the common technical scheme at present is to control the engine to idle through a whole vehicle controller, but the working conditions of the engine are different, the rotating speed of the engine maintained after entering the idling is different, so that the accuracy of the final idling control is lower, in addition, the prior art can also control the target idling rotating speed to be sent to the engine controller and the generator controller through the whole vehicle controller, however, the engine controller needs time to control the engine to switch the target idle speed, so that the final coordination control time is long, and the efficiency of controlling the idle speed is low.
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 an idle speed control method, device, equipment and storage medium of a hybrid vehicle, and aims to solve the technical problem that the idle speed control efficiency and accuracy of the hybrid vehicle are low in the prior art.
To achieve the above object, the present invention provides an idle speed control method of a hybrid vehicle, including the steps of:
the method comprises the steps that an engine controller obtains current idle speed request information sent by a target vehicle controller;
acquiring the current running state and the current running working condition of the target engine according to the current idle speed request information;
calculating the current running state and the current running condition through a preset idle speed calculation strategy to obtain a target idle speed;
and when receiving a confirmed rotating speed value of the target vehicle controller according to the target idle rotating speed, controlling the target engine to enter an idle speed corresponding to the confirmed rotating speed value.
Optionally, the obtaining the current operating state and the current driving condition of the target engine according to the current idle speed request information includes:
generating a target parameter detection instruction according to the current idle speed request information;
detecting each temperature sensor, each rotating speed sensor, each evaporation sensor and each exhaust temperature sensor through the target parameter detection instruction;
and determining the current running state and the current running condition of the target engine according to the detection result.
Optionally, the calculating the current operating state and the current driving condition through a preset idle speed calculation strategy to obtain the target idle speed includes:
analyzing the current running condition to obtain running condition parameters;
detecting the current running state according to a preset diagnosis mode strategy, and if the current running state needs to enter a diagnosis mode according to a detection result;
and after the diagnosis mode is exited, calculating the running condition parameters through a preset idle speed calculation strategy to obtain the target idle speed.
Optionally, detecting the current operating state according to a preset diagnosis mode policy, and if it is determined that the diagnosis mode needs to be entered according to the detection result, the method includes:
detecting the pressure and temperature sensors of the evaporation leakage system in the current running state according to a preset diagnosis mode strategy to obtain the variation trend and the threshold value of the pressure and the temperature of the evaporation leakage system;
comparing the change trend and the threshold value of the pressure and the temperature of the evaporation leakage system with the change trend and the threshold value of the system pressure and the temperature when the evaporation leakage of the preset diameter hole occurs;
and judging whether the current evaporation leakage amount is in the target range required by the laws and regulations or not according to the comparison result so as to realize that the diagnosis mode needs to be entered according to the judgment of the detection result.
Optionally, when receiving a confirmed rotation speed value of the target vehicle controller according to the target idle rotation speed, controlling the target engine to enter an idle speed corresponding to the confirmed rotation speed value includes:
sending the target idle speed to a target vehicle controller so that the target vehicle controller judges whether to enter idle speed according to the target idle speed, copying the target idle speed when judging that the idle speed is entered, and generating and feeding back a confirmed speed value and a target idle speed switching request according to the copied target idle speed;
and controlling the target engine to enter the idle speed corresponding to the confirmed rotating speed value according to the target idle speed switching request.
Optionally, after the current operating state and the current driving condition are calculated by using a preset idle speed calculation strategy to obtain a target idle speed, the method further includes:
determining the current oil consumption of the target vehicle within a preset time according to the target idle speed;
when the current oil consumption is larger than a preset oil consumption threshold value, adjusting the target idle speed according to the current coolant temperature and the current exhaust temperature;
and acquiring a current rotating speed value fed back by the target vehicle controller according to the adjusted target idle rotating speed, and controlling the target engine to enter an idle speed corresponding to the current rotating speed value.
Optionally, the obtaining, by the engine controller, current idle rotation speed request information sent by a target vehicle controller includes:
sending a preset idle speed control instruction to a target vehicle controller so that the target vehicle controller receives an electric quantity state and a high-voltage system state sent by a battery management module, motor rotating speed information and motor running state information sent by a generator controller and obtains vehicle running parameters; generating a target setting instruction according to the electric quantity state, the high-voltage system state, the motor rotating speed information, the motor running state information and the vehicle running parameters; setting the current rotating speed control enabling, the current rotating speed control request and the current slow torque through the target setting instruction; generating and feeding back current idle speed request information according to a setting result;
and the engine controller acquires the current idle speed request information sent by the target vehicle controller.
In order to achieve the above object, the present invention also provides an idle speed control device for a hybrid vehicle, including:
the acquisition module is used for the engine controller to acquire current idle speed request information sent by a target vehicle controller;
the acquisition module is further used for acquiring the current running state and the current running working condition of the target engine according to the current idle speed request information;
the calculation module is used for calculating the current running state and the current running condition through a preset idle speed calculation strategy to obtain a target idle speed;
and the control module is used for controlling the target engine to enter the idling of the confirmed rotating speed value when the confirmed rotating speed value of the target vehicle controller according to the target idling rotating speed is received.
Further, to achieve the above object, the present invention also proposes an idle speed control apparatus of a hybrid vehicle, comprising: a memory, a processor and an idle speed control program of a hybrid vehicle stored on the memory and operable on the processor, the idle speed control program of the hybrid vehicle being configured to implement the idle speed control method of the hybrid vehicle as described above.
In addition, to achieve the above object, the present invention further proposes a storage medium having stored thereon an idle speed control program of a hybrid vehicle, which when executed by a processor, implements the idle speed control method of the hybrid vehicle as described above.
The invention provides an idle speed control method of a hybrid vehicle, which comprises the steps of obtaining current idle speed request information sent by a target vehicle controller through an engine controller; acquiring the current running state and the current running working condition of the target engine according to the current idle speed request information; calculating the current running state and the current running condition through a preset idle speed calculation strategy to obtain a target idle speed; when receiving a confirmed rotating speed value of the target vehicle controller according to the target idle rotating speed, controlling the target engine to enter an idle speed corresponding to the confirmed rotating speed value; according to the invention, the current running state and the current running condition obtained according to the current idle speed request information are calculated through the preset idle speed calculation strategy, and the target engine is controlled according to the confirmed speed value of the calculated target idle speed, so that the efficiency and the accuracy of idle speed control can be effectively improved.
Drawings
FIG. 1 is a schematic diagram of an idle speed control apparatus for a hybrid vehicle in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram illustrating a first embodiment of an idle speed control method for a hybrid vehicle according to the present invention;
FIG. 3 is a schematic flow chart diagram illustrating a second embodiment of an idle speed control method for a hybrid vehicle according to the present invention;
FIG. 4 is a schematic diagram of a system configuration of an embodiment of an idle speed control method for a hybrid vehicle according to the present invention;
FIG. 5 is a schematic flow chart diagram illustrating a third embodiment of an idle speed control method for a hybrid vehicle according to the present invention;
fig. 6 is a functional block diagram of the first embodiment of the idle speed control apparatus of the hybrid vehicle of 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 an idle speed control device of a hybrid vehicle in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the idle speed control apparatus of the hybrid vehicle 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) Memory, or may be 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 idle speed control apparatus of a hybrid vehicle, and may include more or fewer components than 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 an idle speed control program of the hybrid vehicle.
In the idle speed control apparatus of the hybrid vehicle shown in fig. 1, the network interface 1004 is mainly used for data communication with the network integrated platform workstation; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 of the idle speed control device of the hybrid vehicle of the present invention may be provided in the idle speed control device of the hybrid vehicle, which calls the idle speed control program of the hybrid vehicle stored in the memory 1005 through the processor 1001 and executes the idle speed control method of the hybrid vehicle provided by the embodiment of the present invention.
Based on the hardware structure, the embodiment of the idle speed control method of the hybrid vehicle is provided.
Referring to fig. 2, fig. 2 is a flowchart illustrating a first embodiment of an idle speed control method for a hybrid vehicle according to the present invention.
In a first embodiment, the idle speed control method of a hybrid vehicle includes the steps of:
in step S10, the engine controller obtains the current idle speed request message sent by the target vehicle controller.
The execution subject of the present embodiment is an idle speed control device of a hybrid vehicle, and may also be other devices that can achieve the same or similar functions, such as an engine controller.
It should be understood that the current idle rotation speed request information refers to information that a target Vehicle Controller requests an Engine Controller to Control a target Engine to enter an idle speed, that is, the Engine Controller performs an idle speed Control operation after receiving the current idle rotation speed request information, the target Vehicle Controller being a Vehicle Controller Module (VCM) of the target Vehicle, and the Engine Controller (ECM) being a Controller of an Engine of the target Vehicle.
Further, step S10 includes: sending a preset idle speed control instruction to a target vehicle controller so that the target vehicle controller receives the electric quantity state and the high-voltage system state sent by a battery management module, the motor rotating speed information and the motor running state information sent by a generator controller and obtains vehicle running parameters, and generating a target setting instruction according to the electric quantity state, the high-voltage system state, the motor rotating speed information, the motor running state information and the vehicle running parameters; setting the current rotating speed control enabling, the current rotating speed control request and the current slow torque through the target setting instruction; generating and feeding back current idle speed request information according to a setting result; and the engine controller acquires the current idle speed request information sent by the target vehicle controller.
It can be understood that the preset idle speed control instruction refers to an instruction for triggering the target vehicle controller to acquire parameters of the battery management module and the generator controller, that is, after receiving the preset idle speed control instruction, receiving the electric quantity state and the high-voltage system state sent by the battery management module, and the motor speed information and the motor running state information sent by the generator controller, and acquiring running parameters of the target vehicle, generating a target setting instruction based on the electric quantity state, the high-voltage system state, the motor speed information, the motor running state information and the running parameters to set a current speed control enable, a current speed control request and a current slow torque, and after the setting is completed, feeding back the current idle speed request information to the ECM.
It should be understood that the state of charge refers to the state of charge of a battery in a target Vehicle, the corresponding state of charge is determined by the amount of use and the amount of non-use of the battery, the state of a high-voltage System refers to the state of a high-voltage battery System of the target Vehicle, the state of the high-voltage System is divided into failure and non-failure, the state corresponding to the motor operation state information is divided into failure and non-failure, the motor speed information refers to the current speed information of the motor, the driving parameters refer to parameters of the target Vehicle during driving, such as Vehicle speed information, accelerator pedal voltage information, brake pedal voltage information and the like, the Vehicle speed information is a Vehicle dynamic Control System (VDC) transmitted to a target Vehicle controller through the CAN, the accelerator pedal voltage information and the brake pedal voltage information are transmitted to the target Vehicle controller through physical signals accessed by a wire harness, specifically, the current rotation speed control enable is set to be active, the current rotation speed control request is set to be active, and the current slow torque is set to 0Nm, that is, the dual control based on the torque control and the rotation speed control is realized.
And step S20, acquiring the current running state and the current running condition of the target engine according to the current idle speed request information.
It should be understood that the current operating state refers to an operating state of the target engine, and is determined by measuring information of various sensors of the target engine, such as an engine speed sensor, a coolant temperature sensor, an oil pressure sensor, a front oxygen sensor, a rear oxygen sensor, an evaporative leak diagnostic system pressure and temperature sensor, and an exhaust gas temperature sensor.
It is understood that the current driving condition refers to a condition during which the target vehicle is driven, for example, a driving condition such as start, acceleration, and deceleration.
Further, step S20 includes: generating a target parameter detection instruction according to the current idle speed request information; detecting each temperature sensor, each rotating speed sensor, each evaporation sensor and each exhaust temperature sensor through the target parameter detection instruction; and determining the current running state and the current running condition of the target engine according to the detection result.
It should be understood that the target parameter detection instruction refers to an instruction for acquiring measurement parameters of each sensor, and after the target parameter detection instruction is generated according to the current idle speed request information, the target parameter detection instruction is sent to each sensor, so that the temperature sensor, the speed sensor, the evaporation sensor and the exhaust temperature sensor feed back corresponding measurement data, and the current running state and the current running condition of the target engine can be determined according to the measurement data.
And step S30, calculating the current running state and the current running condition through a preset idle speed calculation strategy to obtain the target idle speed.
It should be understood that the preset idle speed calculation strategy refers to a strategy for calculating the idle speed of the target vehicle, specifically, after the current operating state and the current driving condition are obtained, the idle speed calculation parameter is determined according to the current operating state and the current driving condition, and the idle speed calculation parameter is calculated through the preset idle speed calculation strategy, so that the target idle speed can be obtained, where the target idle speed refers to the speed of the target engine when the target engine enters idle speed.
Further, after step S30, the method further includes: determining the current oil consumption of the target vehicle within a preset time according to the target idle speed; when the current oil consumption is larger than a preset oil consumption threshold value, adjusting the target idle speed according to the current coolant temperature and the current exhaust temperature; and acquiring a current rotating speed value fed back by the target vehicle controller according to the adjusted target idle rotating speed, and controlling the target engine to enter an idle speed corresponding to the current rotating speed value.
It is understood that the current fuel consumption refers to the amount of fuel consumed by the target vehicle when the target vehicle runs at the target idle speed within a preset time, and in order to prevent the determined current fuel consumption from being inaccurate due to too short time, the preset time of the embodiment is set to 10 minutes, or several other minutes, which is not limited by the embodiment.
It should be understood that the preset oil consumption threshold refers to a maximum oil consumption value of the target vehicle under an idle condition, when the current oil consumption in a preset time is greater than the preset oil consumption threshold, the idle speed of the engine is dynamically adjusted by monitoring the temperature of the cooling liquid and the temperature of the exhaust gas of the engine in real time, determining a current speed value according to the adjusted target idle speed, and controlling the target engine to enter the idle speed corresponding to the current speed value, so as to achieve optimal control of the oil consumption.
And step S40, when receiving the confirmed rotating speed value of the target vehicle controller according to the target idling rotating speed, controlling the target engine to enter the idling speed corresponding to the confirmed rotating speed value.
It is understood that the confirmation rotation speed value refers to a rotation speed control request value confirmed and fed back by the target vehicle controller according to the target idle rotation speed, and the ECM controls the target engine to enter the idle speed corresponding to the confirmation rotation speed value after receiving the confirmation rotation speed value.
In the embodiment, the current idle speed request information sent by a target vehicle controller is obtained through an engine controller; acquiring the current running state and the current running working condition of the target engine according to the current idle speed request information; calculating the current running state and the current running condition through a preset idle speed calculation strategy to obtain a target idle speed; when receiving a confirmed rotating speed value of the target vehicle controller according to the target idle rotating speed, controlling the target engine to enter an idle speed corresponding to the confirmed rotating speed value; according to the method, the current running state and the current running condition obtained according to the current idle speed request information are calculated through the preset idle speed calculation strategy, and the target engine is controlled according to the confirmed speed value of the calculated target idle speed, so that the efficiency and the accuracy of idle speed control can be effectively improved.
In an embodiment, as shown in fig. 3, a second embodiment of the idle speed control method for a hybrid vehicle according to the present invention is provided based on the first embodiment, and the step S30 includes:
step S301, analyzing the current running condition to obtain running condition parameters.
It should be understood that the current driving condition refers to a condition during the driving process of the target vehicle, each driving condition parameter refers to each parameter of the current driving condition, and each driving condition parameter is obtained by analyzing the current driving condition.
And step S302, detecting the current running state according to a preset diagnosis mode strategy, and entering a diagnosis mode if the current running state is judged to be required according to a detection result.
It is understood that the preset diagnosis mode strategy refers to a strategy for diagnosing the current operating state of the target vehicle, and corresponds to a diagnosis mode including whether to turn on a warm-up mode, whether to turn on a catalyst heating mode, whether to turn on a pre-oxygen diagnosis, whether to turn on a post-oxygen diagnosis, and whether to turn on an evaporation leakage diagnosis mode, and detects the current operating state based on the preset diagnosis mode strategy, and enters the diagnosis mode according to the detection result.
Further, step S302 includes: detecting the pressure and temperature sensors of the evaporation leakage system in the current running state according to a preset diagnosis mode strategy to obtain the variation trend and the threshold value of the pressure and the temperature of the evaporation leakage system; comparing the change trend and the threshold value of the pressure and the temperature of the evaporation leakage system with the change trend and the threshold value of the system pressure and the temperature when the evaporation leakage of the preset diameter hole occurs; and judging whether the current evaporation leakage amount is in the target range required by the laws and regulations or not according to the comparison result so as to realize that the diagnosis mode needs to be entered according to the judgment of the detection result.
It can be understood that, the pressure and temperature variation trend and the threshold of the evaporation leakage system are detected by the pressure sensor and the temperature sensor, specifically, the obtained pressure and temperature variation trend and threshold are compared with the system pressure and temperature variation trend and threshold when the preset diameter hole is evaporated and leaked by controlling the opening and closing of the valve, the evaporation leakage amount refers to the volume of the preset diameter hole evaporated and leaked in unit time, the diameter of the preset diameter hole may be 1mm, or may be other sizes.
It should be appreciated that, after determining that entry into the diagnostic mode is required, the ECM sends a particular target idle speed in the diagnostic mode, the target idle speed may be 800r/min or 1000r/min, which is not limited in this embodiment, in addition, if the engine needs to enter the idle speed under the non-diagnosis requirement, the ECM sends the corresponding idle speed target rotating speed through internal calculation according to the current engine running state, the non-diagnostic requirements include a short-time pure electric mode, a short-time energy recovery mode and the like, and the current engine operating state is determined by detecting information of an engine speed sensor, a coolant temperature sensor, an oil pressure sensor, a front oxygen sensor, a rear oxygen sensor and the like, the current working condition of the engine is judged according to the information measured by the sensor, and the target idle speed corresponding to different working conditions is different.
And step S303, after the diagnosis mode is exited, calculating each driving condition parameter through a preset idle speed calculation strategy to obtain a target idle speed.
It should be understood that after exiting the diagnostic mode, each driving condition parameter is calculated through a preset idle speed calculation strategy, and when the idle speed condition of the target vehicle is calculated, each driving condition parameter is input to the preset idle speed calculation strategy to obtain the corresponding idle speed, that is, the corresponding idle speed is calculated through the inside of the ECM.
It should be noted that, referring to fig. 4, the structural schematic diagram of the system includes a battery management module, a generator controller, a target vehicle controller, and an engine controller, and the specific flow is that the battery management module sends an electric quantity state and a high-voltage system state to the target vehicle controller, the generator controller sends motor rotation speed information and motor running state information to the target vehicle controller, and meanwhile, the target vehicle controller obtains vehicle running parameters, where the vehicle running parameters include vehicle speed information, accelerator pedal voltage information, and brake pedal voltage information; the target vehicle controller generates a target setting instruction according to the electric quantity state, the high-voltage system state, the motor rotating speed information, the motor running state and the vehicle running parameters, sets the current rotating speed control enable to be effective through the target setting instruction, sets the current rotating speed control request to be effective and the current slow torque to be 0Nm, generates current idling rotating speed request information after the setting is completed, sends the current idling rotating speed request information to the engine controller, the engine controller acquires the current running state and the current running working condition of the target engine according to the current idling rotating speed request information, internally calculates the current running state and the current running working condition of the target engine and judges a diagnosis mode to acquire the target idling rotating speed, feeds the target idling rotating speed back to the target vehicle controller, and simultaneously feeds the current rotating speed, the current rotating speed and the current running working condition of the target engine back to the target vehicle controller, The method comprises the steps that the temperature of cooling liquid and the current torque are sent to a target vehicle controller in real time, the target vehicle controller judges whether to enter an idle speed after receiving a target idle speed, if the target idle speed is judged to enter the idle speed, the target idle speed is copied, a target idle speed switching request is generated according to the copied target idle speed, a target engine is controlled to enter the idle speed corresponding to a confirmed speed value according to the target idle speed switching request, and if the target engine does not enter the idle speed, the confirmed speed value needing to be fed back is set to be invalid.
In the embodiment, each driving condition parameter is obtained by analyzing the current driving condition; detecting the current running state according to a preset diagnosis mode strategy, and if the current running state needs to enter a diagnosis mode according to a detection result; after the diagnosis mode is exited, calculating each driving condition parameter through a preset idle speed calculation strategy to obtain a target idle speed; according to the method, the current running state is diagnosed through the preset diagnosis mode strategy, the diagnosis mode needs to be entered according to the diagnosis result, and after the diagnosis mode exits, each driving condition parameter obtained through analysis is calculated through the preset idle speed calculation strategy to obtain the target idle speed, so that the accuracy of obtaining the target idle speed can be effectively improved.
In an embodiment, as shown in fig. 5, a third embodiment of the idle speed control method for a hybrid vehicle according to the present invention is provided based on the first embodiment, and the step S40 includes:
step S401, sending the target idling speed to a target vehicle controller so that the target vehicle controller judges whether to enter an idling speed according to the target idling speed, copying the target idling speed when judging that the idling speed is entered, and generating and feeding back a confirmed speed value and a target idling speed switching request according to the copied target idling speed.
It is understood that, after the target idle speed is obtained, the ECM transmits the target idle speed to the target vehicle controller, and at the same time, transmits the current speed, the current torque, and the coolant temperature of the engine in real time, and thus, since the ECM calculates in real time, it is possible to improve the response time of the ECM to control the target engine to enter idle speed.
It should be understood that, after receiving the target idle speed sent by the ECM, the target vehicle controller determines whether to enter idle speed, sets the confirmation speed value to invalid if it is determined not to enter idle speed, copies the target idle speed value if it is determined to enter idle speed, and generates and feeds back the confirmation speed value through the copied target idle speed.
And S402, controlling the target engine to enter the idle speed corresponding to the confirmed rotating speed value according to the target idle speed switching request.
It can be understood that the target idle speed switching request refers to a request for the ECM to control the target engine to enter an idle speed corresponding to the confirmed rotational speed value, and also requests for the generator controller to switch operation according to the target idle speed, so that the target engine and the motor cooperatively enter the same rotational speed, the coordination transition time is reduced, the jitter is reduced, and the hardware damage is avoided.
In the embodiment, the target idle speed is sent to a target vehicle controller, so that the target vehicle controller judges whether to enter an idle speed according to the target idle speed, copies the target idle speed when judging to enter the idle speed, and generates and feeds back a confirmation speed value and a target idle speed switching request according to the copied target idle speed; controlling the target engine to enter an idle speed corresponding to the confirmed rotating speed value according to the target idle speed switching request; according to the method and the device, the target idle speed is sent to the target vehicle controller, so that the target vehicle controller copies the target idle speed when judging to enter the idle speed according to the target idle speed, a corresponding confirmed speed value and a target idle speed switching request are generated based on the copied target idle speed, and the engine controller controls the target engine to enter the idle speed corresponding to the confirmed speed value according to the target idle speed switching request, so that the idle speed control efficiency can be effectively improved, and hardware damage is avoided.
Furthermore, an embodiment of the present invention also provides a storage medium having stored thereon an idle speed control program of a hybrid vehicle, which when executed by a processor, implements the steps of the idle speed control method of the hybrid vehicle as described above.
Since the storage medium adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
Further, referring to fig. 6, an embodiment of the present invention also proposes an idle speed control device for a hybrid vehicle, including:
the obtaining module 10 is used for the engine controller to obtain the current idle speed request information sent by the target vehicle controller.
It should be understood that the current idle rotation speed request information refers to information that a target Vehicle Controller requests an Engine Controller to Control a target Engine to enter an idle speed, that is, the Engine Controller performs an idle speed Control operation after receiving the current idle rotation speed request information, the target Vehicle Controller being a Vehicle Controller Module (VCM) of the target Vehicle, and the Engine Controller (ECM) being a Controller of an Engine of the target Vehicle.
Further, the obtaining module 10 is further configured to send a preset idle speed control instruction to a target vehicle controller, so that the target vehicle controller receives the electric quantity state and the high-voltage system state sent by the battery management module, the motor rotation speed information and the motor running state information sent by the generator controller, and obtains a vehicle running parameter, and generates a target setting instruction according to the electric quantity state, the high-voltage system state, the motor rotation speed information, the motor running state information, and the vehicle running parameter; setting the current rotating speed control enabling, the current rotating speed control request and the current slow torque through the target setting instruction; generating and feeding back current idle speed request information according to a setting result; and the engine controller acquires the current idle speed request information sent by the target vehicle controller.
It can be understood that the preset idle speed control instruction refers to an instruction for triggering the target vehicle controller to acquire parameters of the battery management module and the generator controller, that is, after receiving the preset idle speed control instruction, receiving the electric quantity state and the high-voltage system state sent by the battery management module, and the motor speed information and the motor running state information sent by the generator controller, and acquiring running parameters of the target vehicle, generating a target setting instruction based on the electric quantity state, the high-voltage system state, the motor speed information, the motor running state information and the running parameters to set a current speed control enable, a current speed control request and a current slow torque, and after the setting is completed, feeding back the current idle speed request information to the ECM.
It should be understood that the state of charge refers to the state of charge of a battery in a target Vehicle, the corresponding state of charge is determined by the amount of use and the amount of non-use of the battery, the state of a high-voltage System refers to the state of a high-voltage battery System of the target Vehicle, the state of the high-voltage System is divided into failure and non-failure, the state corresponding to the motor operation state information is divided into failure and non-failure, the motor speed information refers to the current speed information of the motor, the driving parameters refer to parameters of the target Vehicle during driving, such as Vehicle speed information, accelerator pedal voltage information, brake pedal voltage information and the like, the Vehicle speed information is a Vehicle dynamic Control System (VDC) transmitted to a target Vehicle controller through the CAN, the accelerator pedal voltage information and the brake pedal voltage information are transmitted to the target Vehicle controller through physical signals accessed by a wire harness, specifically, the current rotation speed control enable is set to be active, the current rotation speed control request is set to be active, and the current slow torque is set to 0Nm, that is, the dual control based on the torque control and the rotation speed control is realized.
The obtaining module 10 is further configured to obtain a current operating state and a current driving condition of the target engine according to the current idle speed request information.
It should be understood that the current operating state refers to an operating state of the target engine, and is determined by measuring information of various sensors of the target engine, such as an engine speed sensor, a coolant temperature sensor, an oil pressure sensor, a front oxygen sensor, a rear oxygen sensor, an evaporative leak diagnostic system pressure and temperature sensor, and an exhaust gas temperature sensor.
It is understood that the current driving condition refers to a condition during which the target vehicle is driven, for example, a driving condition such as start, acceleration, and deceleration.
Further, the obtaining module 10 is further configured to generate a target parameter detection instruction according to the current idle speed request information; detecting each temperature sensor, each rotating speed sensor, each evaporation sensor and each exhaust temperature sensor through the target parameter detection instruction; and determining the current running state and the current running condition of the target engine according to the detection result.
It should be understood that the target parameter detection instruction refers to an instruction for acquiring measurement parameters of each sensor, and after the target parameter detection instruction is generated according to the current idle speed request information, the target parameter detection instruction is sent to each sensor, so that the temperature sensor, the speed sensor, the evaporation sensor and the exhaust temperature sensor feed back corresponding measurement data, and the current running state and the current running condition of the target engine can be determined according to the measurement data.
And the calculating module 20 is configured to calculate the current operating state and the current driving condition through a preset idle speed calculating strategy to obtain a target idle speed.
It should be understood that the preset idle speed calculation strategy refers to a strategy for calculating the idle speed of the target vehicle, specifically, after the current operating state and the current driving condition are obtained, the idle speed calculation parameter is determined according to the current operating state and the current driving condition, and the idle speed calculation parameter is calculated through the preset idle speed calculation strategy, so that the target idle speed can be obtained, where the target idle speed refers to the speed of the target engine when the target engine enters idle speed.
Further, the calculating module 30 is further configured to determine the current oil consumption of the target vehicle within a preset time according to the target idle speed; when the current oil consumption is larger than a preset oil consumption threshold value, adjusting the target idle speed according to the current coolant temperature and the current exhaust temperature; and acquiring a current rotating speed value fed back by the target vehicle controller according to the adjusted target idle rotating speed, and controlling the target engine to enter an idle speed corresponding to the current rotating speed value.
It is understood that the current fuel consumption refers to the amount of fuel consumed by the target vehicle when the target vehicle runs at the target idle speed within a preset time, and in order to prevent the determined current fuel consumption from being inaccurate due to too short time, the preset time of the embodiment is set to 10 minutes, or several other minutes, which is not limited by the embodiment.
It should be understood that the preset oil consumption threshold refers to a maximum oil consumption value of the target vehicle under an idle condition, when the current oil consumption in a preset time is greater than the preset oil consumption threshold, the idle speed of the engine is dynamically adjusted by monitoring the temperature of the cooling liquid and the temperature of the exhaust gas of the engine in real time, determining a current speed value according to the adjusted target idle speed, and controlling the target engine to enter the idle speed corresponding to the current speed value, so as to achieve optimal control of the oil consumption.
And the control module 30 is configured to, when receiving a confirmed rotation speed value of the target vehicle controller according to the target idle rotation speed, control the target engine to enter an idle speed of the confirmed rotation speed value.
It is understood that the confirmation rotation speed value refers to a rotation speed control request value confirmed and fed back by the target vehicle controller according to the target idle rotation speed, and the ECM controls the target engine to enter the idle speed corresponding to the confirmation rotation speed value after receiving the confirmation rotation speed value.
In the embodiment, the current idle speed request information sent by a target vehicle controller is obtained through an engine controller; acquiring the current running state and the current running working condition of the target engine according to the current idle speed request information; calculating the current running state and the current running condition through a preset idle speed calculation strategy to obtain a target idle speed; when receiving a confirmed rotating speed value of the target vehicle controller according to the target idle rotating speed, controlling the target engine to enter an idle speed corresponding to the confirmed rotating speed value; according to the method, the current running state and the current running condition obtained according to the current idle speed request information are calculated through the preset idle speed calculation strategy, and the target engine is controlled according to the confirmed speed value of the calculated target idle speed, so that the efficiency and the accuracy of idle speed control can be effectively improved.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
In addition, the technical details that are not elaborated in the embodiment may be referred to a method for controlling idle speed of a hybrid vehicle according to any embodiment of the present invention, and are not described herein again.
In an embodiment, the obtaining module 10 is further configured to send a preset idle speed control instruction to a target vehicle controller, so that the target vehicle controller receives the electric quantity state and the high-voltage system state sent by the battery management module, the motor rotation speed information and the motor running state information sent by the generator controller, and obtains a vehicle running parameter, and generates a target setting instruction according to the electric quantity state, the high-voltage system state, the motor rotation speed information, the motor running state information, and the vehicle running parameter; setting the current rotating speed control enabling, the current rotating speed control request and the current slow torque through the target setting instruction; generating and feeding back current idle speed request information according to a setting result; and the engine controller acquires the current idle speed request information sent by the target vehicle controller.
In an embodiment, the obtaining module 10 is further configured to generate a target parameter detection instruction according to the current idle rotation speed request information; detecting each temperature sensor, each rotating speed sensor, each evaporation sensor and each exhaust temperature sensor through the target parameter detection instruction; and determining the current running state and the current running condition of the target engine according to the detection result.
In an embodiment, the calculating module 20 is further configured to analyze the current driving condition to obtain a parameter of each driving condition; detecting the current running state according to a preset diagnosis mode strategy, and if the current running state needs to enter a diagnosis mode according to a detection result; and after the diagnosis mode is exited, calculating the running condition parameters through a preset idle speed calculation strategy to obtain the target idle speed.
In an embodiment, the calculation module 20 is further configured to detect the pressure and temperature sensors of the evaporation leakage system in the current operating state according to a preset diagnosis mode policy, so as to obtain a variation trend and a threshold of the pressure and the temperature of the evaporation leakage system; comparing the change trend and the threshold value of the pressure and the temperature of the evaporation leakage system with the change trend and the threshold value of the system pressure and the temperature when the evaporation leakage of the preset diameter hole occurs; and judging whether the current evaporation leakage amount is in the target range required by the laws and regulations or not according to the comparison result so as to realize that the diagnosis mode needs to be entered according to the judgment of the detection result.
In an embodiment, the calculating module 20 is configured to determine a current oil consumption of the target vehicle within a preset time according to the target idle speed; when the current oil consumption is larger than a preset oil consumption threshold value, adjusting the target idle speed according to the current coolant temperature and the current exhaust temperature; and acquiring a current rotating speed value fed back by the target vehicle controller according to the adjusted target idle rotating speed, and controlling the target engine to enter an idle speed corresponding to the current rotating speed value.
In an embodiment, the control module 30 is further configured to send the target idle speed to a target vehicle controller, so that the target vehicle controller determines whether to enter an idle speed according to the target idle speed, copy the target idle speed when determining to enter the idle speed, and generate and feed back a confirmation speed value and a target idle speed switching request according to the copied target idle speed; and controlling the target engine to enter the idle speed corresponding to the confirmed rotating speed value according to the target idle speed switching request.
Other embodiments or methods of implementing the idle speed control apparatus for a hybrid vehicle according to the present invention are described with reference to the above embodiments of the method, and are not intended to be exhaustive.
Further, it is to 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., Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g., a mobile phone, a computer, an all-in-one platform workstation, 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. An idle speed control method of a hybrid vehicle, characterized by comprising the steps of:
the method comprises the steps that an engine controller obtains current idle speed request information sent by a target vehicle controller;
acquiring the current running state and the current running working condition of the target engine according to the current idle speed request information;
calculating the current running state and the current running condition through a preset idle speed calculation strategy to obtain a target idle speed;
and when receiving a confirmed rotating speed value of the target vehicle controller according to the target idle rotating speed, controlling the target engine to enter an idle speed corresponding to the confirmed rotating speed value.
2. The idle speed control method of a hybrid vehicle according to claim 1, wherein the acquiring the current operating state and the current driving condition of the target engine according to the current idle rotation speed request information includes:
generating a target parameter detection instruction according to the current idle speed request information;
detecting each temperature sensor, each rotating speed sensor, each evaporation sensor and each exhaust temperature sensor through the target parameter detection instruction;
and determining the current running state and the current running condition of the target engine according to the detection result.
3. The idle speed control method of a hybrid vehicle according to claim 1, wherein the calculating the current operation state and the current driving condition by a preset idle speed calculation strategy to obtain the target idle speed comprises:
analyzing the current running condition to obtain running condition parameters;
detecting the current running state according to a preset diagnosis mode strategy, and if the current running state needs to enter a diagnosis mode according to a detection result;
and after the diagnosis mode is exited, calculating the running condition parameters through a preset idle speed calculation strategy to obtain the target idle speed.
4. The idle speed control method of a hybrid vehicle according to claim 3, wherein the detecting the current operation state according to a preset diagnosis mode strategy, and if it is determined that the diagnosis mode needs to be entered according to the detection result, comprises:
detecting the pressure and temperature sensors of the evaporation leakage system in the current running state according to a preset diagnosis mode strategy to obtain the variation trend and the threshold value of the pressure and the temperature of the evaporation leakage system;
comparing the change trend and the threshold value of the pressure and the temperature of the evaporation leakage system with the change trend and the threshold value of the system pressure and the temperature when the evaporation leakage of the preset diameter hole occurs;
and judging whether the current evaporation leakage amount is in the target range required by the laws and regulations or not according to the comparison result so as to realize that the diagnosis mode needs to be entered according to the judgment of the detection result.
5. The idle speed control method of a hybrid vehicle according to any one of claims 1 to 4, wherein the controlling the target engine to enter the idle speed corresponding to the confirmed rotation speed value upon receiving the confirmed rotation speed value of the target vehicle controller according to the target idle speed value comprises:
sending the target idle speed to a target vehicle controller so that the target vehicle controller judges whether to enter idle speed according to the target idle speed, copying the target idle speed when judging that the idle speed is entered, and generating and feeding back a confirmed speed value and a target idle speed switching request according to the copied target idle speed;
and controlling the target engine to enter the idle speed corresponding to the confirmed rotating speed value according to the target idle speed switching request.
6. The idle speed control method of a hybrid vehicle according to any one of claims 1 to 4, wherein after the current operation state and the current driving condition are calculated by a preset idle speed calculation strategy to obtain the target idle speed, the method further comprises:
determining the current oil consumption of the target vehicle within a preset time according to the target idle speed;
when the current oil consumption is larger than a preset oil consumption threshold value, adjusting the target idle speed according to the current coolant temperature and the current exhaust temperature;
and acquiring a current rotating speed value fed back by the target vehicle controller according to the adjusted target idle rotating speed, and controlling the target engine to enter an idle speed corresponding to the current rotating speed value.
7. The idle speed control method of a hybrid vehicle according to any one of claims 1 to 4, wherein the engine controller acquiring the current idle rotation speed request information transmitted by the target vehicle controller includes:
sending a preset idle speed control instruction to a target vehicle controller so that the target vehicle controller receives the electric quantity state and the high-voltage system state sent by a battery management module, the motor rotating speed information and the motor running state information sent by a generator controller and obtains vehicle running parameters, and generating a target setting instruction according to the electric quantity state, the high-voltage system state, the motor rotating speed information, the motor running state information and the vehicle running parameters; setting the current rotating speed control enabling, the current rotating speed control request and the current slow torque through the target setting instruction; generating and feeding back current idle speed request information according to a setting result;
and the engine controller acquires the current idle speed request information sent by the target vehicle controller.
8. An idle speed control apparatus of a hybrid vehicle, characterized by comprising:
the acquisition module is used for the engine controller to acquire current idle speed request information sent by a target vehicle controller;
the acquisition module is further used for acquiring the current running state and the current running working condition of the target engine according to the current idle speed request information;
the calculation module is used for calculating the current running state and the current running condition through a preset idle speed calculation strategy to obtain a target idle speed;
and the control module is used for controlling the target engine to enter the idling of the confirmed rotating speed value when the confirmed rotating speed value of the target vehicle controller according to the target idling rotating speed is received.
9. An idle speed control apparatus of a hybrid vehicle, characterized by comprising: memory, processor and idle speed control program of a hybrid vehicle stored on the memory and operable on the processor, the idle speed control program of a hybrid vehicle being configured with an idle speed control method implementing a hybrid vehicle as claimed in any one of claims 1 to 7.
10. A storage medium, characterized in that the storage medium has stored thereon an idle speed control program of a hybrid vehicle, which when executed by a processor implements the idle speed control method of the hybrid vehicle according to any one of claims 1 to 7.
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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000274276A (en) * 1999-03-25 2000-10-03 Fuji Heavy Ind Ltd Idle speed control device for engine
US6664651B1 (en) * 2000-11-14 2003-12-16 Ford Motor Company Engine on idle arbitration for a hybrid electric vehicle
US20060102393A1 (en) * 2002-09-05 2006-05-18 Stefan Tumback Motor vehicle comprising a hybrid drive and method for controlling the idle speed of a hybrid drive of a motor vehicle
KR100765600B1 (en) * 2006-08-21 2007-10-09 현대자동차주식회사 Engine starting stable method for hybrid vehicle
JP2009029319A (en) * 2007-07-30 2009-02-12 Nissan Motor Co Ltd Power generation control apparatus of hybrid vehicle
CN102042099A (en) * 2009-10-15 2011-05-04 通用汽车环球科技运作公司 Method and apparatus for optimizing engine idle speed in a vehicle
CN106853821A (en) * 2015-12-09 2017-06-16 上海汽车集团股份有限公司 Hybrid vehicle, HCU and its method to idle speed control
CN111591281A (en) * 2020-05-13 2020-08-28 上海元城汽车技术有限公司 Idle speed control method and device, vehicle and storage medium
CN112572403A (en) * 2019-09-12 2021-03-30 比亚迪股份有限公司 Hybrid electric vehicle and power generation control method and system thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000274276A (en) * 1999-03-25 2000-10-03 Fuji Heavy Ind Ltd Idle speed control device for engine
US6664651B1 (en) * 2000-11-14 2003-12-16 Ford Motor Company Engine on idle arbitration for a hybrid electric vehicle
US20060102393A1 (en) * 2002-09-05 2006-05-18 Stefan Tumback Motor vehicle comprising a hybrid drive and method for controlling the idle speed of a hybrid drive of a motor vehicle
KR100765600B1 (en) * 2006-08-21 2007-10-09 현대자동차주식회사 Engine starting stable method for hybrid vehicle
JP2009029319A (en) * 2007-07-30 2009-02-12 Nissan Motor Co Ltd Power generation control apparatus of hybrid vehicle
CN102042099A (en) * 2009-10-15 2011-05-04 通用汽车环球科技运作公司 Method and apparatus for optimizing engine idle speed in a vehicle
CN106853821A (en) * 2015-12-09 2017-06-16 上海汽车集团股份有限公司 Hybrid vehicle, HCU and its method to idle speed control
CN112572403A (en) * 2019-09-12 2021-03-30 比亚迪股份有限公司 Hybrid electric vehicle and power generation control method and system thereof
CN111591281A (en) * 2020-05-13 2020-08-28 上海元城汽车技术有限公司 Idle speed control method and device, vehicle and storage medium

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