CN115123188B - Engine control method, device, equipment and storage medium - Google Patents
Engine control method, device, equipment and storage medium Download PDFInfo
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- CN115123188B CN115123188B CN202210528395.7A CN202210528395A CN115123188B CN 115123188 B CN115123188 B CN 115123188B CN 202210528395 A CN202210528395 A CN 202210528395A CN 115123188 B CN115123188 B CN 115123188B
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- 238000011217 control strategy Methods 0.000 claims description 32
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- 238000006243 chemical reaction Methods 0.000 claims description 9
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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
- B60W20/15—Control strategies specially adapted for achieving a particular effect
- B60W20/17—Control strategies specially adapted for achieving a particular effect for noise reduction
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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
- B60W10/04—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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- 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
- B60W2710/0644—Engine 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0666—Engine torque
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention relates to the technical field of automobile control, in particular to an engine control method, device, equipment and storage medium.
Description
Technical Field
The present invention relates to the field of automobile control technologies, and in particular, to an engine control method, an engine control device, an engine control apparatus, and a storage medium.
Background
With the development of new energy vehicle types, but because the new energy vehicle is inconvenient to charge compared with the fuel vehicle, various hybrid power vehicle types are gradually derived, for example: hybrid electric vehicles, etc.; however, in a hybrid vehicle type, noise exists in the running process of the vehicle due to unequal power consumption of the vehicle and functional power provided by an engine, so that the driving experience of a user is affected.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide an engine control method, device, equipment and storage medium, and aims to solve the technical problem that noise exists due to unequal energy consumption of a vehicle and energy supply of an engine in the prior art.
To achieve the above object, the present invention provides an engine control method comprising the steps of:
when the target vehicle is detected to be in a uniform-speed running state, acquiring the current vehicle speed;
determining the whole vehicle consumption power of the target vehicle through a motor power mapping table according to the current vehicle speed;
Determining a target engine power generation point corresponding to the current vehicle speed based on the whole vehicle consumption power and a preset engine control strategy;
and controlling the running state of the target vehicle engine according to the target engine generating point.
Optionally, the determining the target engine power generation point corresponding to the current vehicle speed based on the whole vehicle power consumption and a preset engine control strategy includes:
Determining at least one group of engine parameters under the current vehicle speed according to the whole vehicle consumption power, wherein the engine parameters comprise: engine speed and engine torque;
Performing a sweep point test on the target vehicle based on the engine speed and the engine torque to obtain a target engine speed and a target engine torque;
determining engine power according to the target engine speed, the target engine torque and a preset conversion coefficient;
And determining a target engine power generation point based on the engine power and the target generator speed.
Optionally, the performing the sweep point test on the target vehicle based on the engine speed and the engine torque to obtain a target engine speed and a target engine torque includes:
determining vehicle response information according to the engine speed and the engine torque, wherein the vehicle response information comprises: vehicle shake information and vehicle noise information;
And determining target vehicle response information in the vehicle response information based on the vehicle shake information and the vehicle noise information, and outputting target engine speed and target engine torque corresponding to the target vehicle response information.
Optionally, the determining the power consumption of the whole vehicle of the target vehicle according to the current vehicle speed through a motor power mapping table includes:
Acquiring the whole vehicle voltage consumption of the target vehicle;
determining the motor consumption power of the target vehicle through a motor power mapping table according to the current vehicle speed;
And generating the whole vehicle consumption power based on the whole vehicle low-voltage power consumption and the motor consumption power.
Optionally, before determining the target engine power generation point corresponding to the current vehicle speed based on the whole vehicle power consumption and a preset engine control strategy, the method further includes:
acquiring the engine speed and the engine torque of the target vehicle;
determining initial vehicle response information based on the engine speed and the engine torque;
And when a sweep test request is received, carrying out sweep test on an engine of the target vehicle according to the current vehicle speed, the engine torque and the engine rotating speed, and determining a preset engine control strategy based on a sweep test result.
Optionally, when the sweep test request is received, sweep test is performed on the engine of the target vehicle according to the current vehicle speed, the engine torque and the engine rotation speed, and a preset engine control strategy is determined based on a sweep test result, including:
adjusting the engine torque and the engine speed according to the sweep test request;
determining target vehicle response information based on the adjusted engine torque and the adjusted engine speed;
and comparing the initial vehicle response information with the target vehicle response information, and generating a preset engine control strategy according to the comparison result.
Optionally, the comparing the initial vehicle response information with the target vehicle response information, and generating a preset engine control strategy according to the comparison result, includes:
generating an initial vehicle response coefficient according to the initial vehicle response information, and generating a target vehicle response coefficient according to the target vehicle response information;
outputting a target engine speed and a target engine torque corresponding to the target vehicle response coefficient when the initial vehicle response coefficient is greater than the target vehicle response coefficient;
And outputting the generator torque output time and the generator output torque corresponding to the initial vehicle response coefficient when the vehicle initial response coefficient is not greater than the target vehicle response coefficient.
In order to achieve the above object, the present invention also provides an engine control apparatus including:
The vehicle speed acquisition module is used for acquiring the current vehicle speed when the target vehicle is detected to be in a uniform-speed running state;
the power determining module is used for determining the whole vehicle consumption power of the target vehicle through a motor power mapping table according to the current vehicle speed;
The power generation point determining module is used for determining a target engine power generation point corresponding to the current vehicle speed based on the whole vehicle consumption power and a preset engine control strategy;
and the engine control module is used for controlling the running state of the target vehicle engine according to the target engine power generation point.
Further, to achieve the above object, the present invention also proposes an engine control apparatus comprising: a memory, a processor, and an engine control program stored on the memory and executable on the processor, the engine control program configured to implement the steps of the engine control method as described above.
In addition, in order to achieve the above object, the present invention also proposes a storage medium having stored thereon an engine control program which, when executed by a processor, implements the steps of the engine control method as described above.
The invention discloses a method for acquiring a current vehicle speed when detecting that a target vehicle is in a uniform-speed running state; determining the whole vehicle consumption power of the target vehicle through a motor power mapping table according to the current vehicle speed; determining a target engine power generation point corresponding to the current vehicle speed based on the whole vehicle consumption power and a preset engine control strategy; compared with the prior art, the invention determines the whole vehicle consumption power corresponding to the current vehicle speed by acquiring the current vehicle speed and determining the target engine power generation point corresponding to the current vehicle speed through the motor power mapping table, and further determines the target engine power generation point corresponding to the current vehicle speed by combining a preset legal and control strategy, and controls the running state of the engine according to the target engine power generation point, so that the vehicle consumption power is equal to the power supplied by the engine, thereby realizing the reduction of the noise of the engine, and avoiding the technical problems of the noise caused by unequal vehicle energy consumption and engine energy supply in the prior art.
Drawings
FIG. 1 is a schematic diagram of an engine control device of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a flow chart of a first embodiment of an engine control method according to the present invention;
FIG. 3 is a flow chart of a second embodiment of the engine control method of the present invention;
FIG. 4 is a flow chart of a third embodiment of an engine control method according to the present invention;
Fig. 5 is a block diagram showing the construction of a first embodiment of the engine control device of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic diagram of an engine control device in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the engine control apparatus may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further 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 high-speed random access Memory (Random Access Memory, RAM) or a stable nonvolatile Memory (NVM), such as a disk Memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
Those skilled in the art will appreciate that the configuration shown in FIG. 1 is not limiting of the engine control apparatus and may include more or fewer components than shown, or may combine certain components, or may be a different arrangement of components.
As shown in fig. 1, an operating system, a network communication module, a user interface module, and an engine control program may be included in the memory 1005 as one type of storage medium.
In the engine control 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 engine control apparatus of the present invention may be provided in the engine control apparatus, which invokes the engine control program stored in the memory 1005 through the processor 1001 and executes the engine control method provided by the embodiment of the present invention.
An embodiment of the present invention provides an engine control method, referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of an engine control method according to the present invention.
In this embodiment, the engine control method includes the steps of:
step S10: and when the target vehicle is detected to be in a uniform-speed running state, acquiring the current vehicle speed.
It should be noted that, the execution body of the method of this embodiment may be a device having functions of data processing, data transmission, and data collection, for example: the in-vehicle controller and the like may be other devices having the same or similar functions, and this embodiment is not particularly limited, and in this embodiment and the embodiments described below, the in-vehicle controller will be exemplified.
It is worth to say that in the new energy automobile model, the engine charges for the battery, and the battery provides power for driving motor, and unlike traditional fuel oil vehicle, hybrid serial mode engine rotational speed does not have linear relation with the speed of the vehicle, therefore, when the vehicle is at the uniform velocity, can be through controlling the rotational speed and the moment of torsion of engine, thereby realize the power generation size that control engine provided.
It will be appreciated that in order to accurately obtain the influence of the engine torque and the engine speed on the engine power generation at different vehicle speeds, in this embodiment, a constant speed state is taken as an example for explanation.
Step S20: and determining the whole vehicle consumption power of the target vehicle through a motor power mapping table according to the current vehicle speed.
It should be noted that, the motor power map refers to a map of vehicle speed and power required for driving a motor, where the overall power consumption includes: the power required by a driving motor for driving a vehicle to run, the low-voltage power consumption of the whole vehicle, and the like, wherein the low-voltage power consumption of the whole vehicle refers to the power consumption of each electronic device in the target vehicle, for example: the present embodiment is not particularly limited to an automobile headlight, an air conditioner, a wiper, and the like.
Further, the step S20 includes:
Acquiring the whole vehicle voltage consumption of the target vehicle;
determining the motor consumption power of the target vehicle through a motor power mapping table according to the current vehicle speed;
And generating the whole vehicle consumption power based on the whole vehicle low-voltage power consumption and the motor consumption power.
It should be understood that the entire vehicle voltage consumption refers to the power consumption of each electronic device in the target vehicle, for example: the present embodiment is not particularly limited to an automobile headlight, an air conditioner, a wiper, and the like.
In this embodiment, in order to obtain the motor power mapping table, the CAN line of the vehicle may be connected to the OBD port of the whole vehicle, read the hybrid information, and make the vehicle test at a constant speed of 10-65km/h (greater than 65 in parallel), and every 5km/h step, and read the power required for maintaining the motor driving of the hybrid constant speed running through the CAN line, with reference to table 1, table 1 is the motor power mapping table, and in addition, in this embodiment, the low voltage power consumption of the whole vehicle may be reserved for 2kw, which is not limited in this embodiment.
In a specific implementation, the generated power a of the engine=the power X required for driving the motor+the voltage consumption Y of the whole vehicle.
Step S30: and determining a target engine power generation point corresponding to the current vehicle speed based on the whole vehicle power consumption and a preset engine control strategy.
It can be understood that the preset engine control strategy is used for determining a suitable engine power generation point according to the current speed of the target vehicle, wherein when the power provided by the engine of the target vehicle is lower than the power consumption of the whole vehicle, the target vehicle can influence the normal operation of the vehicle due to insufficient functions, and meanwhile, if the power provided by the engine is higher than the power consumption of the whole vehicle, the engine can have larger noise when in operation so as to influence the driving experience of a user.
It is understood that the target engine power generation point refers to a power generation point of the engine when the power consumed by the whole vehicle is equal to the energy supplied by the engine.
TABLE 1
Step S40: and controlling the running state of the target vehicle engine according to the target engine generating point.
The control target engine generating point refers to controlling the rotation speed and the engine torque of the engine to control the running state of the engine, wherein the target engine generating point is in a linear relation with the rotation speed and the torque of the engine.
The embodiment discloses that when detecting that a target vehicle is in a constant-speed running state, acquiring a current vehicle speed; determining the whole vehicle consumption power of the target vehicle through a motor power mapping table according to the current vehicle speed; determining a target engine power generation point corresponding to the current vehicle speed based on the whole vehicle consumption power and a preset engine control strategy; according to the running state of the target vehicle engine controlled by the target engine generating point, the embodiment determines the whole vehicle consumption power corresponding to the current vehicle speed by acquiring the current vehicle speed and determining the target engine generating point corresponding to the current vehicle speed by a motor power mapping table, and further determines the target engine generating point corresponding to the current vehicle speed by combining a preset legal and control strategy, and according to the running state of the target engine controlling engine, the vehicle consumption power can be controlled to be equal to the power supplied by the engine, thereby reducing the noise of the engine, and avoiding the technical problems of noise caused by unequal vehicle consumption and engine energy supply in the prior art.
Referring to fig. 3, fig. 3 is a flowchart illustrating a second embodiment of an engine control method according to the present invention.
Based on the first embodiment, in this embodiment, the step S30 includes:
Step S301: determining at least one group of engine parameters under the current vehicle speed according to the whole vehicle consumption power, wherein the engine parameters comprise: engine speed and engine torque.
Under different vehicle speeds, the most suitable output torque and the most suitable influence degree of the rotation speed of the engine on the target vehicle are different, and the power generation power provided by the engine can be controlled by controlling the rotation speed and the torque of the engine, so that the noise or the shake condition of the vehicle is controlled.
In the present embodiment, since there is a linear relationship between the engine speed and the engine torque and the engine power generation point, different combinations of the engine speed and the engine torque may make the engine power generation point parameters the same, but since the degree of influence of the engine speed and the engine torque on the noise of the vehicle is different from the degree of influence of the shake, it is necessary to select an optimal combination of the engine parameters from at least one set of the engine speed and the engine torque to reduce the influence on the noise and the shake of the vehicle.
Step S302: and performing a sweep point test on the target vehicle based on the engine speed and the engine torque to obtain a target engine speed and a target engine torque.
It should be noted that the sweep point test refers to applying different engine torques or engine speeds to a vehicle running at a constant speed at different speeds to view vehicle response information of the target vehicle at the different engine torques or engine speeds, where the vehicle response information includes: steering wheel shake information, seat rail shake information, driver right ear noise information in the cab, rear-row area noise information in the cab, and the like, which is not particularly limited in this embodiment.
Further, the step S302 includes:
determining vehicle response information according to the engine speed and the engine torque, wherein the vehicle response information comprises: vehicle shake information and vehicle noise information;
And determining target vehicle response information in the vehicle response information based on the vehicle shake information and the vehicle noise information, and outputting target engine speed and target engine torque corresponding to the target vehicle response information.
The vehicle shake information includes: steering wheel shake information, seat rail shake information, or the like, and vehicle noise information includes: the noise information of the right ear of the driver in the cab or the noise information of the rear-row area in the cab, etc., which is not particularly limited in this embodiment.
In a specific implementation, the vehicle response information of different engine torques or different engine speeds is calculated to obtain the parameter pair of the engine torque and the engine speed with the least influence, for example: and setting power generation points (900-2500 rpm, 50rpm for one step at intervals) with different engine speeds under the same vehicle speed, and simultaneously taking corresponding engine output torque) to test the noise or jitter level of the whole vehicle.
In order to collect vehicle response information, LMS vibration sensors may be installed in the steering wheel, the seat rail, and the driver's right ear region, the middle line, and the middle line of the rear line in the cab, respectively, which is not particularly limited in this embodiment.
Step S303: and determining the engine power according to the target engine speed, the target engine torque and a preset conversion coefficient.
It can be understood that the preset conversion coefficient means that the engine drives the generator to generate electricity, the efficiency will be lost due to friction force and the like, in this embodiment, the conversion coefficient is between 0.8 and 0.9, this embodiment does not make a specific limitation, and the formula for obtaining the generating power of the engine is as follows:
A＝B*C*D/9550
Wherein A is the power generated by the engine, B is the engine speed, C is the engine torque, and D is the conversion coefficient.
In a specific implementation, taking a vehicle running at a constant speed of 10km/h as an example, the power generated by the engine is 3 kw=1000 rpm, 33.7n x m x 0.85/9550.
Step S304: and determining a target engine power generation point based on the engine power and the target generator speed.
The embodiment discloses determining at least one set of engine parameters at the current vehicle speed according to the whole vehicle power consumption, wherein the engine parameters comprise: engine speed and engine torque; performing a sweep point test on the target vehicle based on the engine speed and the engine torque to obtain a target engine speed and a target engine torque; determining the power generation power of a generator according to the target engine speed, the target engine torque and a preset conversion coefficient; the method comprises the steps of determining a target generator generating point based on the generator generating power and the target generator rotating speed, determining at least one group of engine parameters through the total consumption power of the target vehicle, and performing point sweeping test on the target vehicle on the engine rotating speed and the engine torque in the obtained engine parameters, so that the engine rotating speed and the engine torque with minimum response to the vehicle are screened out, the generating point of the engine is determined, and noise is reduced.
Referring to fig. 4, fig. 4 is a flowchart illustrating a third embodiment of an engine control method according to the present invention.
Based on the above second embodiment, in this embodiment, before step S30, the method further includes:
step S210: and acquiring the engine speed and the engine torque of the target vehicle.
Step S220: initial vehicle response information is determined based on the engine speed and the engine torque.
In order to obtain the optimal engine torque and engine speed at the current speed, the engine of the target vehicle needs to be tested, and in this embodiment, the optimal engine torque and engine speed at the current speed may be obtained by changing the vehicle engine torque and engine speed in the constant speed state.
It is understood that the initial vehicle response information refers to vehicle shake information and vehicle noise information of the vehicle, wherein the vehicle shake information includes: steering wheel shake information, seat rail shake information, or the like, and vehicle noise information includes: the noise information of the right ear of the driver in the cab or the noise information of the rear-row area in the cab, etc., which is not particularly limited in this embodiment.
Step S230: and when a sweep test request is received, carrying out sweep test on an engine of the target vehicle according to the current vehicle speed, the engine torque and the engine rotating speed, and determining a preset engine control strategy based on a sweep test result.
It should be noted that the sweep test refers to adjusting different torques or different rotational speeds for the vehicle generator in a constant speed form state to check vehicle steering wheel shake information, vehicle seat rail shake information, driver right ear area, middle row and middle row in the cab, and corresponding sweep test results are different according to different speeds of the target vehicle, referring to table 2, table 3 and table 4, and table 2 is a vehicle sweep test result of 10km/h, table 3 is a vehicle sweep test result of 20km/h, and table 4 is a vehicle sweep test result of 65 km/h.
Further, the step S230 includes:
adjusting the engine torque and the engine speed according to the sweep test request;
determining target vehicle response information based on the adjusted engine torque and the adjusted engine speed;
and comparing the initial vehicle response information with the target vehicle response information, and generating a preset engine control strategy according to the comparison result.
TABLE 2
TABLE 3 Table 3
TABLE 4 Table 4
In specific implementation, the engine speed and the engine torque are adjusted, so that the shake condition and the noise condition of the target vehicle under different conditions are obtained, and corresponding vehicle response coefficients are calculated according to the shake condition, the noise condition and the preset weight ratio, so that the optimal engine speed and the optimal engine torque are determined.
In this embodiment, the preset weight ratio may be a weight ratio of 2:3:3:2 of the steering wheel, the seat rail, the right ear area of the driver in the cab, and the middle area of the rear seat in the cab, which is not particularly limited in this embodiment.
Further, the comparing the initial vehicle response information with the target vehicle response information, and generating a preset engine control strategy according to the comparison result, includes:
generating an initial vehicle response coefficient according to the initial vehicle response information, and generating a target vehicle response coefficient according to the target vehicle response information;
outputting a target engine speed and a target engine torque corresponding to the target vehicle response coefficient when the initial vehicle response coefficient is greater than the target vehicle response coefficient;
And outputting the generator torque output time and the generator output torque corresponding to the initial vehicle response coefficient when the vehicle initial response coefficient is not greater than the target vehicle response coefficient.
It can be appreciated that by outputting the engine torque and the engine speed with a smaller response coefficient as the optimal engine torque and engine speed at the current vehicle speed, the abnormality and the hunting of the vehicle are reduced to the maximum extent.
According to the method, the sweep frequency test is carried out on the vehicles at different speeds at the same time respectively, and the test is carried out on different engine torques and engine price rotating speeds, so that the engine torque and the engine price rotating speed with the minimum shaking degree and abnormal sound degree at the vehicle speed are determined, and a preset engine control strategy is obtained.
In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium stores an engine control program, and the engine control program realizes the steps of the engine control method when being executed by a processor.
Because the storage medium adopts all the technical schemes of all the embodiments, the storage medium has at least all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted here.
Referring to fig. 5, fig. 5 is a block diagram showing the structure of a first embodiment of the engine control device of the present invention.
As shown in fig. 5, an engine control device according to an embodiment of the present invention includes:
the vehicle speed acquisition module 10 is used for acquiring the current vehicle speed when the target vehicle is detected to be in a uniform running state.
The power determining module 20 is configured to determine the overall power consumption of the target vehicle according to the current vehicle speed through a motor power map.
The power generation point determining module 30 is configured to determine a target engine power generation point corresponding to the current vehicle speed based on the overall power consumption and a preset engine control strategy.
An engine control module 40 for controlling the operating state of the target vehicle engine according to the target engine generating point.
The embodiment discloses that when detecting that a target vehicle is in a constant-speed running state, acquiring a current vehicle speed; determining the whole vehicle consumption power of the target vehicle through a motor power mapping table according to the current vehicle speed; determining a target engine power generation point corresponding to the current vehicle speed based on the whole vehicle consumption power and a preset engine control strategy; according to the running state of the target vehicle engine controlled by the target engine generating point, the embodiment determines the whole vehicle consumption power corresponding to the current vehicle speed by acquiring the current vehicle speed and determining the target engine generating point corresponding to the current vehicle speed by a motor power mapping table, and further determines the target engine generating point corresponding to the current vehicle speed by combining a preset legal and control strategy, and according to the running state of the target engine controlling engine, the vehicle consumption power can be controlled to be equal to the power supplied by the engine, thereby reducing the noise of the engine, and avoiding the technical problems of noise caused by unequal vehicle consumption and engine energy supply in the prior art.
In an embodiment, the generating point determining module 30 is further configured to determine at least one set of engine parameters at the current vehicle speed according to the overall vehicle power consumption, where the engine parameters include: engine speed and engine torque; performing a sweep point test on the target vehicle based on the engine speed and the engine torque to obtain a target engine speed and a target engine torque; determining engine power according to the target engine speed, the target engine torque and a preset conversion coefficient; and determining a target engine power generation point based on the engine power and the target generator speed.
In one embodiment, the generating point determining module 30 is further configured to determine vehicle response information according to the engine speed and the engine torque, where the vehicle response information includes: vehicle shake information and vehicle noise information; and determining target vehicle response information in the vehicle response information based on the vehicle shake information and the vehicle noise information, and outputting target engine speed and target engine torque corresponding to the target vehicle response information.
In an embodiment, the power determining module 20 is further configured to obtain a voltage consumption of the entire vehicle of the target vehicle; determining the motor consumption power of the target vehicle through a motor power mapping table according to the current vehicle speed; and generating the whole vehicle consumption power based on the whole vehicle low-voltage power consumption and the motor consumption power.
In an embodiment, the generating point determining module 30 is further configured to obtain an engine speed and an engine torque of the target vehicle; determining initial vehicle response information based on the engine speed and the engine torque; and when a sweep test request is received, carrying out sweep test on an engine of the target vehicle according to the current vehicle speed, the engine torque and the engine rotating speed, and determining a preset engine control strategy based on a sweep test result.
In an embodiment, the generating point determining module 30 is further configured to adjust the engine torque and the engine speed according to the sweep test request; determining target vehicle response information based on the adjusted engine torque and the adjusted engine speed; and comparing the initial vehicle response information with the target vehicle response information, and generating a preset engine control strategy according to the comparison result.
In an embodiment, the generating point determining module 30 is further configured to generate an initial vehicle response coefficient according to the initial vehicle response information, and generate a target vehicle response coefficient according to the target vehicle response information; outputting a target engine speed and a target engine torque corresponding to the target vehicle response coefficient when the initial vehicle response coefficient is greater than the target vehicle response coefficient; and outputting the generator torque output time and the generator output torque corresponding to the initial vehicle response coefficient when the vehicle initial response coefficient is not greater than the target vehicle response coefficient.
It should be understood that the foregoing is illustrative only and is not limiting, and that in specific applications, those skilled in the art may set the invention as desired, and the invention is not limited thereto.
It should be noted that the above-described working procedure is merely illustrative, and does not limit the scope of the present invention, and in practical application, a person skilled in the art may select part or all of them according to actual needs to achieve the purpose of the embodiment, which is not limited herein.
In addition, technical details not described in detail in the present embodiment may refer to the engine control method provided in any embodiment of the present invention, and are not described herein.
Furthermore, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. Read Only Memory)/RAM, magnetic disk, optical disk) and including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (6)
1. An engine control method, characterized by comprising:
when the target vehicle is detected to be in a uniform-speed running state, acquiring the current vehicle speed;
determining the whole vehicle consumption power of the target vehicle through a motor power mapping table according to the current vehicle speed;
Determining a target engine power generation point corresponding to the current vehicle speed based on the whole vehicle consumption power and a preset engine control strategy;
controlling the running state of the target vehicle engine according to the target engine generating point;
The determining the target engine power generation point corresponding to the current vehicle speed based on the whole vehicle consumption power and a preset engine control strategy comprises the following steps:
Determining at least one group of engine parameters under the current vehicle speed according to the whole vehicle consumption power, wherein the engine parameters comprise: engine speed and engine torque;
Performing a sweep point test on the target vehicle based on the engine speed and the engine torque to obtain a target engine speed and a target engine torque;
determining engine power according to the target engine speed, the target engine torque and a preset conversion coefficient;
Determining a target engine power generation point based on the engine power generation and the target engine speed;
the performing a sweep point test on the target vehicle based on the engine speed and the engine torque to obtain a target engine speed and a target engine torque includes:
determining vehicle response information according to the engine speed and the engine torque, wherein the vehicle response information comprises: vehicle shake information and vehicle noise information;
determining target vehicle response information in the vehicle response information based on the vehicle shake information and the vehicle noise information, and outputting target engine speed and target engine torque corresponding to the target vehicle response information;
The whole vehicle consumption power of the target vehicle is determined according to the current vehicle speed through a motor power mapping table, and the method comprises the following steps:
Acquiring the whole vehicle voltage consumption of the target vehicle;
determining the motor consumption power of the target vehicle through a motor power mapping table according to the current vehicle speed;
generating the whole vehicle consumption power based on the whole vehicle low-voltage power consumption and the motor consumption power;
Before determining the target engine power generation point corresponding to the current vehicle speed based on the whole vehicle consumption power and a preset engine control strategy, the method further comprises:
acquiring the engine speed and the engine torque of the target vehicle;
determining initial vehicle response information based on the engine speed and the engine torque;
And when a sweep test request is received, carrying out sweep test on an engine of the target vehicle according to the current vehicle speed, the engine torque and the engine rotating speed, and determining a preset engine control strategy based on a sweep test result.
2. The engine control method of claim 1, wherein the performing a sweep test on the engine of the target vehicle according to the current vehicle speed, the engine torque, and the engine speed upon receiving a sweep test request, and determining a preset engine control strategy based on a sweep test result, comprises:
adjusting the engine torque and the engine speed according to the sweep test request;
determining target vehicle response information based on the adjusted engine torque and the adjusted engine speed;
And comparing the initial vehicle response information with the target vehicle response information, and generating a preset engine control strategy according to a comparison result.
3. The engine control method according to claim 2, characterized in that the comparing the initial vehicle response information with the target vehicle response information and generating a preset engine control strategy based on the comparison result includes:
generating an initial vehicle response coefficient according to the initial vehicle response information, and generating a target vehicle response coefficient according to the target vehicle response information;
outputting a target engine speed and a target engine torque corresponding to the target vehicle response coefficient when the initial vehicle response coefficient is greater than the target vehicle response coefficient;
And outputting the engine torque output time and the engine output torque corresponding to the initial vehicle response coefficient when the initial vehicle response coefficient is not greater than the target vehicle response coefficient.
4. An engine control apparatus for implementing the engine control method according to claim 1, comprising:
The vehicle speed acquisition module is used for acquiring the current vehicle speed when the target vehicle is detected to be in a uniform-speed running state;
the power determining module is used for determining the whole vehicle consumption power of the target vehicle through a motor power mapping table according to the current vehicle speed;
The power generation point determining module is used for determining a target engine power generation point corresponding to the current vehicle speed based on the whole vehicle consumption power and a preset engine control strategy;
The engine control module is used for controlling the running state of the target vehicle engine according to the target engine power generation point;
the power generation point determining module is further configured to determine at least one set of engine parameters at the current vehicle speed according to the overall vehicle consumption power, where the engine parameters include: engine speed and engine torque;
Performing a sweep point test on the target vehicle based on the engine speed and the engine torque to obtain a target engine speed and a target engine torque;
determining engine power according to the target engine speed, the target engine torque and a preset conversion coefficient;
Determining a target engine power generation point based on the engine power generation and the target engine speed;
the power generation point determining module is further configured to determine vehicle response information according to the engine speed and the engine torque, where the vehicle response information includes: vehicle shake information and vehicle noise information;
determining target vehicle response information in the vehicle response information based on the vehicle shake information and the vehicle noise information, and outputting target engine speed and target engine torque corresponding to the target vehicle response information;
the power determining module is also used for acquiring the whole vehicle low power consumption of the target vehicle;
determining the motor consumption power of the target vehicle through a motor power mapping table according to the current vehicle speed;
generating the whole vehicle consumption power based on the whole vehicle low-voltage power consumption and the motor consumption power;
the power generation point determining module is further used for obtaining the engine speed and the engine torque of the target vehicle;
determining initial vehicle response information based on the engine speed and the engine torque;
And when a sweep test request is received, carrying out sweep test on an engine of the target vehicle according to the current vehicle speed, the engine torque and the engine rotating speed, and determining a preset engine control strategy based on a sweep test result.
5. An engine control apparatus, characterized by comprising: a memory, a processor, and an engine control program stored on the memory and executable on the processor, the engine control program configured to implement the engine control method of any one of claims 1 to 3.
6. A storage medium having stored thereon an engine control program which when executed by a processor implements the engine control method of any one of claims 1 to 3.
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| CN202210528395.7A CN115123188B (en) | 2022-05-16 | 2022-05-16 | Engine control method, device, equipment and storage medium |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104601066A (en) * | 2014-12-26 | 2015-05-06 | 芜湖市汽车产业技术研究院有限公司 | Method and device for controlling vehicle generator |
| CN112373318A (en) * | 2020-10-22 | 2021-02-19 | 智新控制***有限公司 | Range-extending vehicle control method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6424861B2 (en) * | 2016-04-20 | 2018-11-21 | トヨタ自動車株式会社 | Hybrid vehicle |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104601066A (en) * | 2014-12-26 | 2015-05-06 | 芜湖市汽车产业技术研究院有限公司 | Method and device for controlling vehicle generator |
| CN112373318A (en) * | 2020-10-22 | 2021-02-19 | 智新控制***有限公司 | Range-extending vehicle control method and system |
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