CN114954474A - Vehicle control method and device, electronic equipment and storage medium - Google Patents
Vehicle control method and device, electronic equipment and storage medium Download PDFInfo
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- CN114954474A CN114954474A CN202210748972.3A CN202210748972A CN114954474A CN 114954474 A CN114954474 A CN 114954474A CN 202210748972 A CN202210748972 A CN 202210748972A CN 114954474 A CN114954474 A CN 114954474A
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- 239000010720 hydraulic oil Substances 0.000 claims description 9
- 239000000110 cooling liquid Substances 0.000 claims description 8
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/182—Selecting between different operative modes, e.g. comfort and performance modes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0676—Engine temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/10—Change speed gearings
- B60W2510/107—Temperature
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention discloses a vehicle control method, a vehicle control device, electronic equipment and a storage medium, wherein the method comprises the following steps: when a target vehicle starts a target economic mode, acquiring the water temperature to be detected and the oil temperature to be detected of the target vehicle at the current moment; determining the current economic mode of the target vehicle according to the water temperature to be detected and the oil temperature to be detected; and acquiring the current water temperature and the current oil temperature in the current economic mode, and updating the current economic mode based on the current water temperature and the current oil temperature until the current economic mode is the target economic mode. The problem that the economical efficiency of target vehicle running cannot be met is solved, and the effect of improving the economical efficiency of the target vehicle is achieved.
Description
Technical Field
The present invention relates to the field of vehicle driving technologies, and in particular, to a vehicle control method and apparatus, an electronic device, and a storage medium.
Background
In the development process of the vehicle, in order to adapt to the requirements of different users, a plurality of driving modes are configured for the vehicle, wherein an economy mode, a comfort mode and a sport mode are more common driving modes.
In order to improve the economy of the vehicle while driving, the user may generally select an economy mode to reduce the amount of fuel consumed during the running of the vehicle. At present, after a vehicle is in an economy mode, the gearbox shift diagram can be switched to the economy shift diagram, so that the gearbox and an engine are matched in the economy mode, and the fuel economy is improved, or the engine speed can be converted from the current speed to a target value, after the condition that a driver steps on a pedal to accelerate and the engine speed exceeds a threshold value for a period of time is detected, the economy mode is quitted, and the economy is improved by operating the engine at a constant speed. However, the real-time difficulty is high in the mode, and the effect of reducing the fuel consumption is not obvious.
In order to be able to improve the economy of a vehicle during running, it is necessary to improve a driving mode control method of the vehicle.
Disclosure of Invention
The invention provides a vehicle control method, a vehicle control device, electronic equipment and a storage medium, and aims to solve the problem that the economical efficiency of target vehicle driving cannot be met.
In a first aspect, an embodiment of the present invention provides a vehicle control method, including:
when a target vehicle starts a target economic mode, acquiring the water temperature to be detected and the oil temperature to be detected of the target vehicle at the current moment; the water temperature to be detected is the temperature of cooling liquid in an engine in the target vehicle, and the oil temperature to be detected is the temperature of transmission hydraulic oil in the target vehicle;
determining the current economic mode of the target vehicle according to the water temperature to be detected and the oil temperature to be detected;
and acquiring the current water temperature and the current oil temperature in the current economic mode, and updating the current economic mode based on the current water temperature and the current oil temperature until the current economic mode is the target economic mode.
In a second aspect, an embodiment of the present invention further provides a vehicle control apparatus, including:
the system comprises an information acquisition module, a target economic mode and a target vehicle control module, wherein the information acquisition module is used for acquiring the water temperature to be detected and the oil temperature to be detected of the target vehicle at the current moment when the target vehicle starts the target economic mode; the water temperature to be detected is the temperature of cooling liquid in an engine in the target vehicle, and the oil temperature to be detected is the temperature of transmission hydraulic oil in the target vehicle;
the economic mode determining module is used for determining the current economic mode of the target vehicle according to the water temperature to be detected and the oil temperature to be detected;
and the economic mode updating module is used for acquiring the current water temperature and the current oil temperature in the current economic mode, and updating the current economic mode based on the current water temperature and the current oil temperature until the current economic mode is the target economic mode.
In a third aspect, an embodiment of the present invention further provides an electronic device, including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein, the first and the second end of the pipe are connected with each other,
the memory stores a computer program executable by the at least one processor, the computer program being executable by the at least one processor to enable the at least one processor to perform a vehicle control method according to any of the embodiments of the invention.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where computer instructions are stored, and the computer instructions are used for causing a processor to implement the vehicle control method according to any embodiment of the present invention when executed.
According to the technical scheme, when the target vehicle starts the target economic mode, the water temperature to be detected and the oil temperature to be detected of the target vehicle at the current moment are obtained, the water temperature to be detected is obtained through the engine water temperature sensor, the oil temperature to be detected is obtained based on the transmission oil temperature sensor, and the current economic mode of the target vehicle is determined based on the water temperature to be detected and the oil temperature to be detected. Determining the current economic mode of the target vehicle according to the water temperature to be detected and the oil temperature to be detected, according to the water temperature threshold value and the oil temperature threshold value corresponding to the water temperature to be detected and the oil temperature to be detected, the current economic mode can be determined, further, the current water temperature and the current oil temperature under the current economic mode are obtained, to update the current economy mode based on the current water temperature and the current oil temperature until the current economy mode is the target economy mode, in order to enable a target vehicle to travel in the target economy mode, when the current economy mode is not the target economy mode, the current economy mode needs to be updated until the current economy mode is the target economy mode, when the target vehicle is in the economy mode conversion, the oil consumption in the mode conversion process can be reduced, and the running economy of the target vehicle is improved. The problem that the economical efficiency of target vehicle running cannot be met is solved, and the effect of improving the economical efficiency of the target vehicle is achieved.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a vehicle control method according to an embodiment of the present invention;
FIG. 2 is a flowchart of a vehicle control method according to a second embodiment of the present invention;
FIG. 3 is a flow chart of a vehicle control method according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a vehicle control device according to a fourth embodiment of the invention;
fig. 5 is a schematic configuration diagram of an electronic device that implements a vehicle control method of an embodiment of the invention;
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
Example one
Fig. 1 is a flowchart of a vehicle control method, which may be applied to improve the economy of a target vehicle in an economy mode, according to an embodiment of the present invention, and may be implemented by a vehicle control device, which may be implemented in hardware and/or software, and may be configured in a computing device that may execute the vehicle control method.
As shown in fig. 1, the method includes:
s110, when the target vehicle starts a target economic mode, acquiring the water temperature to be detected and the oil temperature to be detected of the target vehicle at the current moment.
The driving modes commonly used in the vehicle include a comfort mode, a sport mode, an economy mode, and the like, and a user generally selects to drive the vehicle using the economy mode in order to ensure the economy of the vehicle during the running of the vehicle.
Wherein the target vehicle is a vehicle that initiates a target economy mode in the vehicle, which may be understood as an economy mode in the target vehicle. The water temperature to be detected is the temperature of cooling liquid in an engine in the target vehicle, and the oil temperature to be detected is the temperature of transmission hydraulic oil in the target vehicle.
When the target economy mode is started, the temperature of the hydraulic oil of the transmission is increased by the increase of the temperature of the cooling liquid in the engine, and the target vehicle is controlled to run in the target economy mode. In the technical scheme, the economic modes are divided into a cold economic mode, a warm economic mode and a target economic mode, corresponding water temperature to be detected and oil temperature to be detected can be set according to different economic modes, and when the water temperature to be detected and the oil temperature to be detected meet corresponding water temperature detection conditions and oil temperature detection conditions, the economic mode corresponding to the target vehicle at present can be determined. Specifically, a driving mode selection function is provided in the target vehicle, and when the user selects the target economy mode, the target vehicle is controlled to travel in the target economy mode. In the process that the target vehicle enters the target economic mode, the water temperature to be detected and the oil temperature to be detected of the target vehicle at the current moment can be acquired, and the economic mode corresponding to the target vehicle at present is determined based on the water temperature to be detected and the oil temperature to be detected.
Optionally, the obtaining of the water temperature to be detected and the oil temperature to be detected of the target vehicle at the current moment includes: acquiring water temperature to be detected of the target vehicle based on an engine water temperature sensor installed in the target vehicle; and acquiring the oil temperature to be detected of the target vehicle based on a transmission oil temperature sensor installed in the target vehicle.
The engine water temperature sensor may be understood as a sensor that detects the temperature of the coolant of the engine in the target vehicle. The transmission oil temperature sensor may be understood as a sensor that detects the temperature of transmission hydraulic oil in the target vehicle.
Specifically, the engine water temperature sensor and the transmission oil temperature sensor which are installed in the target vehicle are used for respectively detecting the temperatures of the cooling liquid of the engine and the hydraulic oil of the transmission, and the water temperature to be detected and the oil temperature to be detected which correspond to the target vehicle are obtained.
And S120, determining the current economic mode of the target vehicle according to the water temperature to be detected and the oil temperature to be detected.
The current economic mode can be understood as an economic mode corresponding to the target vehicle at the current moment, and can be a cold economic mode, a warm economic mode or a target economic mode.
Specifically, whether the water temperature to be detected and the oil temperature to be detected meet preset water temperature detection conditions and preset oil temperature detection conditions or not is determined based on the acquired water temperature to be detected and the acquired oil temperature to be detected corresponding to the target vehicle, so that the current economic mode of the target vehicle is judged.
Optionally, the determining the current economic mode of the target vehicle according to the water temperature to be detected and the oil temperature to be detected includes: if the water temperature to be detected is less than or equal to a first water temperature threshold value and the oil temperature to be detected is less than or equal to a first oil temperature threshold value, determining that the current economic mode is the cold machine economic mode; if the water temperature to be detected is greater than the first water temperature threshold and less than a second water temperature threshold, determining that the current economic mode is the warming economic mode; and if the water temperature to be detected is greater than the second water temperature threshold value, determining that the current economic mode is the target economic mode.
The first water temperature threshold may be understood as an engine water temperature threshold corresponding to the cold economy mode. The first oil temperature threshold may be understood as a transmission oil temperature threshold corresponding to the cold economy mode. The second water temperature threshold may be understood as an engine water temperature threshold corresponding to the warm-up economy mode.
Specifically, when the target vehicle starts the target economic mode, the water temperature to be detected and the oil temperature to be detected are judged, and when the water temperature to be detected is smaller than a first water temperature threshold value and the oil temperature to be detected is smaller than or equal to a first oil temperature threshold value, the current economic mode of the target vehicle can be judged to be the cold machine economic mode. The water temperature to be detected and the oil temperature to be detected gradually rise along with the operation of the engine, when whether the economic mode of the target vehicle is the warm-up economic mode or not is determined, the current economic mode of the target vehicle is determined to be the warm-up economic mode only according to whether the current water temperature to be detected is larger than a first water temperature threshold value and smaller than a second water temperature threshold value or not, and if yes, the current economic mode of the target vehicle is determined to be the warm-up economic mode. With the further increase of the water temperature to be detected, when the water temperature to be detected is greater than the second water temperature threshold value, it can be determined that the current economic mode of the target vehicle is the target economic mode.
S130, obtaining the current water temperature and the current oil temperature in the current economic mode, and updating the current economic mode based on the current water temperature and the current oil temperature until the current economic mode is the target economic mode.
The current water temperature can be understood as the engine water temperature of the target vehicle at the current moment, and the current oil temperature can be understood as the transmission oil temperature of the target vehicle at the current moment.
It is understood that when the target economy mode in the target vehicle is triggered, that is, the user desires the target vehicle to control the vehicle to run in the target economy mode, and both the cold economy mode and the warm economy mode are transition processes of the target vehicle to the target economy mode. Therefore, if the current economy mode of the target vehicle is not the target economy mode, the current economy mode needs to be updated until the target vehicle enters the target economy mode.
Optionally, if the current economic mode is the cold machine economic mode, acquiring a first water temperature to be used and a first oil temperature to be used in the cold machine economic mode; when the first to-be-used water temperature and the first to-be-used water temperature meet a warm-up economic mode detection condition, updating the cold economic mode to the warm-up economic mode; and when the second to-be-used water temperature in the warm-up economic mode meets the target economic mode detection condition, updating the warm-up economic mode to the target economic mode.
The detection condition for the water temperature to be detected is mainly the detection condition for the water temperature to be detected in the warm-up economy mode detection condition, and generally, the detection condition can be used for judging whether the water temperature to be detected is larger than a first water temperature threshold value and smaller than a second water temperature threshold value. The target economic mode detection condition is also a detection condition for the water temperature to be detected, and may generally be a condition for judging whether the water temperature to be detected is greater than a second water temperature threshold.
Specifically, when the target vehicle is in the cold economy mode, along with rising of the water temperature to be detected, the water temperature to be detected is larger than a first water temperature threshold value, and at the moment, if the water temperature to be detected is smaller than a second water temperature threshold value, the target vehicle can be updated from the cold economy mode to the warm economy mode. Further, when the engine is operated, the water temperature to be detected is further increased until the water temperature is larger than a second water temperature threshold value, and at the moment, the target vehicle is updated from the warm-up economy mode to the target economy mode so as to control the target vehicle to run based on the target economy mode.
According to the technical scheme, when the target vehicle starts the target economic mode, the water temperature to be detected and the oil temperature to be detected of the target vehicle at the current moment are obtained, the water temperature to be detected is obtained through the engine water temperature sensor, the oil temperature to be detected is obtained based on the transmission oil temperature sensor, and the current economic mode of the target vehicle is determined based on the water temperature to be detected and the oil temperature to be detected. Determining the current economic mode of the target vehicle according to the water temperature to be detected and the oil temperature to be detected, according to the water temperature threshold value and the oil temperature threshold value corresponding to the water temperature to be detected and the oil temperature to be detected, the current economic mode can be determined, further, the current water temperature and the current oil temperature under the current economic mode are obtained, to update the current economy mode based on the current water temperature and the current oil temperature until the current economy mode is the target economy mode, in order to enable a target vehicle to travel in the target economy mode, when the current economy mode is not the target economy mode, the current economy mode needs to be updated until the current economy mode is the target economy mode, when the target vehicle is in the economy mode conversion, the oil consumption in the mode conversion process can be reduced, and the running economy of the target vehicle is improved. The problem that the economical efficiency of target vehicle running cannot be met is solved, and the effect of improving the economical efficiency of the target vehicle is achieved.
Example two
Fig. 2 is a flowchart of a vehicle control method according to a second embodiment of the present invention, and optionally, the current water temperature and the current oil temperature in the current economic mode are obtained, and the current economic mode is updated based on the current water temperature and the current oil temperature until the current economic mode is refined as the target economic mode.
As shown in fig. 2, the method includes:
s210, when the target vehicle starts a target economic mode, acquiring the water temperature to be detected and the oil temperature to be detected of the target vehicle at the current moment.
S220, determining the current economic mode of the target vehicle according to the water temperature to be detected and the oil temperature to be detected.
And S230, if the current economic mode is the warming economic mode, acquiring the current water temperature to be used in the current economic mode.
The current water temperature to be used can be understood as the engine water temperature of the target vehicle in the warm-up economy mode at the current moment.
Specifically, if the target vehicle directly enters the warm-up economy mode when the target economy mode is started, the current water temperature to be used of the target vehicle at the current moment is acquired, so that whether the current economy mode is updated or not is determined according to the current water temperature to be used.
S240, if the current water temperature to be used is larger than the water temperature detection condition in the target economic mode, updating the warm-up economic mode to the target economic mode.
And S250, determining the opening degree of the accelerator pedal in the current period output by the control system of the target vehicle based on the target function.
The target function may be understood as a function for calculating the degree of opening of the accelerator pedal of the target vehicle. The accelerator shift visit opening degree can be understood as the accelerator pedal opening degree of the target vehicle.
Specifically, after the target vehicle is controlled to enter the target economic mode, besides the gear shifting table and the engine pedal map of the economic mode, filtering processing can be added through an oil temperature pedal signal, so that invalid fluctuation of an accelerator pedal is shielded, and steady-state and dynamic working condition switching of the engine is reduced. When determining the degree of opening of the accelerator pedal of the target vehicle, the degree of opening of the accelerator pedal may be determined using an objective function, and the resulting degree of opening of the accelerator pedal may be output by a control system of the target vehicle.
Optionally, the determining the opening degree of the accelerator pedal of the current cycle of the output of the control system of the target vehicle based on the target function includes: acquiring the opening degree of a first accelerator pedal, the opening degree of a second accelerator pedal and a filter coefficient to be used of the target vehicle; obtaining a first result to be used according to the difference value of the opening degree of the first accelerator pedal and the opening degree of the second accelerator pedal; multiplying the first result to be used and the filter coefficient to be used to obtain a first product; determining the opening degree of the accelerator pedal of the current period output by the control system of the target vehicle based on the sum of the second opening degree of the accelerator pedal and the first product.
The first accelerator pedal opening degree is the actual opening degree of the accelerator pedal of the target vehicle in the current period, and the second accelerator pedal opening degree is the accelerator pedal opening degree output by the control system in the last period.
Illustratively, the objective function may be represented by the following formula:
P out1 ＝P out0 +(P in -P out0 )×F actor
wherein, P in To show the eyesOpening degree of first accelerator pedal, P, of target vehicle out0 Indicating a second degree of opening of the accelerator pedal, F, of the target vehicle actor Filter coefficient, P, representing the rate of change of the opening/closing degree of the accelerator pedal out The accelerator pedal opening degree representing the current cycle of the control system output of the target vehicle.
And S260, converting the opening and closing degree of the accelerator pedal based on the control system to obtain corresponding to-be-used transmission torque, so that the control system controls the target vehicle to run based on the to-be-used transmission torque.
The transmission torque to be used may be understood as a torque for controlling the travel of the target vehicle according to the opening degree of the accelerator pedal.
Specifically, after the opening degree of the accelerator pedal of the target vehicle is determined, the transmission torque to be used corresponding to the opening degree of the accelerator pedal is determined, for example, by means of a look-up table. After the transmission torque to be used is obtained, the target vehicle is controlled to run at the transmission torque to be used based on the control system.
In the technical scheme of this embodiment, if the current economy mode is the warm-up economy mode, the current water temperature to be used in the current economy mode is acquired, if the target vehicle directly enters the warm-up economy mode when starting the target economy mode, the current water temperature to be used in the warm-up economy mode is acquired, if the current water temperature to be used is greater than the water temperature detection condition in the target economy mode, the warm-up economy mode is updated to the target economy mode, further, after the target vehicle enters the target economy mode, the opening and closing degree of an accelerator pedal of the current period output by a control system of the target vehicle is determined based on a target function, the opening and closing degree of the accelerator pedal is converted based on the control system, and a corresponding transmission torque to be used is obtained, so that the control system controls the target vehicle to run based on the transmission torque to be used, after the transmission torque to be used is obtained, the target vehicle is controlled to run at the transmission torque to be used based on the control system. The problem that the economical efficiency of target vehicle running cannot be met is solved, and the effect of improving the economical efficiency of the target vehicle is achieved.
EXAMPLE III
In a specific example, as shown in fig. 3, after the target economy mode function of the target vehicle is triggered, the engine water temperature (i.e., the water temperature to be detected) and the transmission oil temperature (i.e., the oil temperature to be detected) of the target vehicle at the current moment are acquired, and when the engine water temperature is less than or equal to T 1 (i.e., a first water temperature threshold), transmission oil temperature ≦ T 11 (i.e., a first oil temperature threshold), the vehicle meter displays the economy mode, and the cold mode is actually performed (i.e., the cold economy mode); when T is 1 <Water temperature of engine is less than or equal to T 2 (i.e., a second water temperature threshold), the vehicle meter displaying the economy mode, actually executing the warm-up economy mode; when the water temperature of the engine>T 2 The vehicle meter displays the economy mode, and actually executes the economy mode (i.e., the target economy mode). Wherein the water temperature of the engine is obtained by an engine water temperature sensor; the transmission oil temperature is obtained by a transmission oil temperature sensor; t is 1 And T 2 To be calibrated, T 1 Generally, the value is between-5 ℃ and-10 ℃, and T 2 Generally, the temperature is between 70 and 85 ℃.
If the target vehicle enters the cold machine economic mode after the target economic mode function is triggered, the water temperature to be detected of the target vehicle can be obtained along with the rising of the water temperature of the engine and the oil temperature of the transmission in the running process of the target vehicle, and when the water temperature of the engine rises, the water temperature to be detected of the target vehicle is obtained>T 3 Oil temperature of transmission>T 12 And exiting from the cold mode, and performing a warm-up economic mode, or else performing cold mode control. Wherein, T 3 The standard quantity is generally 40-50 ℃; wherein, T 12 The value of the standard quantity is generally equal to the minimum locking temperature threshold of the hydraulic torque converter, so that the vehicle transmission can be normally locked after the cold mode is exited, and the transmission efficiency is improved.
If the target vehicle is updated from the cold economic mode to the warm economic mode, soft gear shifting maps and engine pedal maps are configured in the current vehicle economic mode, and the warm economic mode needs to be generated by calibration in order to improve the overall vehicle fuel economy in the warm-up process. Illustratively, the specific calibration process is as follows: taking a gear shifting rule with two parameters (vehicle speed and accelerator) as an example, the gear shifting speed is increased by 200rpm, 400rpm, 600rpm and 800rpm in sequence in an economic mode of a fuel consumption performance area, the gear shifting speed is sequentially delayed in a driving performance area and an acceleration performance area on the premise of ensuring that a gear shifting engine does not overspeed, and a fuel consumption test of the engine warming process is sequentially carried out on a rotating hub according to a WLTC working condition, as shown in the following table:
| serial number | Upshift rotational speed of oil consumption area | Warm-up time | Oil consumption of warm-up process |
| Scheme 1 | Economy mode | t 1 | Q 1 |
| Scheme 2 | Economy mode +200rpm | t 2 | Q 2 |
| Scheme 3 | Economy mode +400rpm | t 3 | Q 3 |
| Scheme 4 | Economy mode +600rpm | t 4 | Q 4 |
| Scheme 5 | Economy mode +800rpm | t 5 | Q 5 |
Wherein, the test process needs to ensure that the initial values of the water temperature of the engine and the oil temperature of the transmission are basically equal and within +/-2 ℃ of the deviation range, and the test process should follow a single-variable method as much as possible; the warm-up time is defined as the time for the engine water temperature to reach T from a certain fixed temperature value 2 The time of (d); the oil consumption in the warming-up process is obtained by CAN line signal integration; under the same working condition, the gear shifting rotating speed with the lowest oil consumption of the whole vehicle in the warming process is found out from the test scheme and used as a gear shifting table of the warming economic mode.
And when the water temperature to be detected of the target vehicle is greater than the second water temperature threshold value, exiting the warm-up economic mode and entering the target economic mode. After entering a target economic mode, besides an economic gear shifting table and an engine pedal map are adopted, meanwhile, filtering processing is added to an accelerator pedal signal, invalid fluctuation of the accelerator pedal is shielded, and steady-state and dynamic working condition switching of the engine is reduced. Wherein the degree of opening of the accelerator pedal of the target vehicle is determined by the objective function client.
Wherein the objective function can be expressed by the following formula:
P out1 ＝P out0 +(P in -P out0 )×F actor
wherein, P in Indicating a first degree of opening of the accelerator pedal, P, of the target vehicle out0 Indicating a second degree of opening of the accelerator pedal, F, of the target vehicle actor Filter coefficient, P, representing the rate of change of the opening/closing degree of the accelerator pedal out The accelerator pedal opening degree representing the current cycle of the control system output of the target vehicle.
Wherein, F actor General valueBetween 0.1 and 0.5.
According to the technical scheme, when the target vehicle starts the target economic mode, the water temperature to be detected and the oil temperature to be detected of the target vehicle at the current moment are obtained, the water temperature to be detected is obtained through the engine water temperature sensor, the oil temperature to be detected is obtained based on the transmission oil temperature sensor, and the current economic mode of the target vehicle is determined based on the water temperature to be detected and the oil temperature to be detected. Determining the current economic mode of the target vehicle according to the water temperature to be detected and the oil temperature to be detected, according to the water temperature threshold value and the oil temperature threshold value corresponding to the water temperature to be detected and the oil temperature to be detected, the current economic mode can be determined, further, the current water temperature and the current oil temperature under the current economic mode are obtained, to update the current economy mode based on the current water temperature and the current oil temperature until the current economy mode is the target economy mode, in order to enable a target vehicle to travel in the target economy mode, when the current economy mode is not the target economy mode, the current economy mode needs to be updated until the current economy mode is the target economy mode, when the target vehicle is in the economy mode conversion, the oil consumption in the mode conversion process can be reduced, and the running economy of the target vehicle is improved. The problem that the economical efficiency of target vehicle running cannot be met is solved, and the effect of improving the economical efficiency of the target vehicle is achieved.
Example four
Fig. 4 is a schematic structural diagram of a vehicle control device according to a fourth embodiment of the present invention. As shown in fig. 4, the apparatus includes: an information acquisition module 310, an economy mode determination module 320, and an economy mode update module 330.
The information acquisition module 310 is configured to acquire water temperature to be detected and oil temperature to be detected of a target vehicle at a current moment when the target vehicle starts a target economic mode; the water temperature to be detected is the temperature of cooling liquid in an engine in the target vehicle, and the oil temperature to be detected is the temperature of transmission hydraulic oil in the target vehicle;
the economic mode determining module 320 is configured to determine a current economic mode of the target vehicle according to the water temperature to be detected and the oil temperature to be detected;
an economy mode updating module 330, configured to obtain a current water temperature and a current oil temperature in the current economy mode, and update the current economy mode based on the current water temperature and the current oil temperature until the current economy mode is the target economy mode.
According to the technical scheme, when the target vehicle starts the target economic mode, the water temperature to be detected and the oil temperature to be detected of the target vehicle at the current moment are obtained, the water temperature to be detected is obtained through the engine water temperature sensor, the oil temperature to be detected is obtained based on the transmission oil temperature sensor, and the current economic mode of the target vehicle is determined based on the water temperature to be detected and the oil temperature to be detected. Determining the current economic mode of the target vehicle according to the water temperature to be detected and the oil temperature to be detected, according to the water temperature threshold value and the oil temperature threshold value corresponding to the water temperature to be detected and the oil temperature to be detected, the current economic mode can be determined, further, the current water temperature and the current oil temperature under the current economic mode are obtained, to update the current economy mode based on the current water temperature and the current oil temperature until the current economy mode is the target economy mode, in order to enable a target vehicle to travel in the target economy mode, when the current economy mode is not the target economy mode, the current economy mode needs to be updated until the current economy mode is the target economy mode, when the target vehicle is in the economy mode conversion, the oil consumption in the mode conversion process can be reduced, and the running economy of the target vehicle is improved. The problem that the economical efficiency of target vehicle running cannot be met is solved, and the effect of improving the economical efficiency of the target vehicle is achieved.
Optionally, the information obtaining module includes: a water temperature acquisition unit to be detected, configured to acquire a water temperature to be detected of the target vehicle based on an engine water temperature sensor installed in the target vehicle;
and the oil temperature acquisition unit to be detected is used for acquiring the oil temperature to be detected of the target vehicle based on a transmission oil temperature sensor installed in the target vehicle.
Optionally, the economy mode determination module includes: the cold machine economic mode determining unit is used for determining that the current economic mode is the cold machine economic mode if the water temperature to be detected is less than or equal to a first water temperature threshold value and the oil temperature to be detected is less than or equal to a first oil temperature threshold value;
the warm-up economic mode determining unit is used for determining that the current economic mode is the warm-up economic mode if the water temperature to be detected is greater than the first water temperature threshold and smaller than a second water temperature threshold;
and the target economic mode determining unit is used for determining that the current economic mode is the target economic mode if the water temperature to be detected is greater than the second water temperature threshold value.
Optionally, the economic mode updating module includes: the information acquisition unit is used for acquiring a first water temperature to be used and a first oil temperature to be used in the cold machine economic mode if the current economic mode is the cold machine economic mode;
the warm-up economic mode updating unit is used for updating the cold-machine economic mode to the warm-up economic mode when the first to-be-used water temperature and the first to-be-used water temperature meet the warm-up economic mode detection condition;
a first updating unit configured to update the warm-up economy mode to the target economy mode when a second to-be-used water temperature in the warm-up economy mode satisfies the target economy mode detection condition.
Optionally, the economic mode updating module further includes: the current to-be-used water temperature obtaining unit is used for obtaining the current to-be-used water temperature in the current economic mode if the current economic mode is the warm-up economic mode;
and the second updating unit is used for updating the warm-up economic mode to the target economic mode if the current water temperature to be used is greater than the water temperature detection condition in the target economic mode.
Optionally, the vehicle control apparatus further includes: the accelerator pedal opening degree determining module is used for determining the accelerator pedal opening degree of the current period output by the control system of the target vehicle based on the target function;
and the torque conversion module is used for carrying out conversion processing on the opening and closing degree of the accelerator pedal based on the control system to obtain corresponding to-be-used transmission torque so that the control system controls the target vehicle to run based on the to-be-used transmission torque.
Optionally, the accelerator pedal opening degree determining module includes:
the parameter acquisition unit is used for acquiring the opening degree of a first accelerator pedal, the opening degree of a second accelerator pedal and a filter coefficient to be used of the target vehicle; the opening degree of the first accelerator pedal is the actual opening degree of the accelerator pedal of the target vehicle in the current period, and the opening degree of the second accelerator pedal is the opening degree of the accelerator pedal output by the control system in the last period;
the first to-be-used result determining unit is used for obtaining a first to-be-used result according to the difference value of the opening degree of the first accelerator pedal and the opening degree of the second accelerator pedal;
a first product determining unit, configured to multiply the first to-be-used result and the to-be-used filter coefficient to obtain a first product;
and the accelerator pedal opening degree determining unit is used for determining the accelerator pedal opening degree of the current period output by the control system of the target vehicle based on the sum of the second accelerator pedal opening degree and the first product.
The vehicle control device provided by the embodiment of the invention can execute the vehicle control method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
EXAMPLE five
Fig. 5 shows a schematic structural diagram of the electronic device 10 of the embodiment of the present invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smart phones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 5, the electronic device 10 includes at least one processor 11, and a memory communicatively connected to the at least one processor 11, such as a Read Only Memory (ROM)12, a Random Access Memory (RAM)13, and the like, wherein the memory stores a computer program executable by the at least one processor, and the processor 11 can perform various suitable actions and processes according to the computer program stored in the Read Only Memory (ROM)12 or the computer program loaded from a storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data necessary for the operation of the electronic apparatus 10 may also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to the bus 14.
A number of components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, or the like; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.
In some embodiments, the vehicle control method may be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the vehicle control method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the vehicle control method by any other suitable means (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, Field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standard Products (ASSPs), system on a chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be performed. A computer program can execute entirely on a machine, partly on a machine, as a stand-alone software package partly on a machine and partly on a remote machine or entirely on a remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), Wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical host and VPS service are overcome.
It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present invention may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired results of the technical solution of the present invention can be achieved.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A vehicle control method characterized by comprising:
when a target vehicle starts a target economic mode, acquiring the water temperature to be detected and the oil temperature to be detected of the target vehicle at the current moment; the water temperature to be detected is the temperature of cooling liquid in an engine in the target vehicle, and the oil temperature to be detected is the temperature of transmission hydraulic oil in the target vehicle;
determining the current economic mode of the target vehicle according to the water temperature to be detected and the oil temperature to be detected;
and acquiring the current water temperature and the current oil temperature in the current economic mode, and updating the current economic mode based on the current water temperature and the current oil temperature until the current economic mode is the target economic mode.
2. The method according to claim 1, wherein the acquiring of the water temperature to be detected and the oil temperature to be detected of the target vehicle at the current time comprises:
acquiring water temperature to be detected of the target vehicle based on an engine water temperature sensor installed in the target vehicle;
and acquiring the oil temperature to be detected of the target vehicle based on a transmission oil temperature sensor installed in the target vehicle.
3. The method according to claim 1, wherein the current economy mode includes a cold economy mode, a warm economy mode, and a target economy mode, and the determining the current economy mode of the target vehicle according to the water temperature to be detected and the oil temperature to be detected includes:
if the water temperature to be detected is less than or equal to a first water temperature threshold value and the oil temperature to be detected is less than or equal to a first oil temperature threshold value, determining that the current economic mode is the cold machine economic mode;
if the water temperature to be detected is greater than the first water temperature threshold and less than a second water temperature threshold, determining that the current economic mode is the warming economic mode;
and if the water temperature to be detected is greater than the second water temperature threshold value, determining that the current economic mode is the target economic mode.
4. The method of claim 1, wherein the obtaining a current water temperature and a current oil temperature in the current economy mode to update the current economy mode based on the current water temperature and the current oil temperature until the current economy mode is the target economy mode comprises:
if the current economic mode is the cold machine economic mode, acquiring a first water temperature to be used and a first oil temperature to be used in the cold machine economic mode;
when the first to-be-used water temperature and the first to-be-used water temperature meet a warm-up economic mode detection condition, updating the cold economic mode to the warm-up economic mode;
and when the second to-be-used water temperature in the warm-up economic mode meets the target economic mode detection condition, updating the warm-up economic mode to the target economic mode.
5. The method of claim 4, further comprising:
if the current economic mode is the warming economic mode, acquiring the current water temperature to be used in the current economic mode;
and if the current water temperature to be used is larger than the water temperature detection condition in the target economic mode, updating the warm-up economic mode to the target economic mode.
6. The method of claim 1, further comprising, after obtaining a current water temperature and a current oil temperature in the current economy mode to update the current economy mode based on the current water temperature and the current oil temperature until the current economy mode is the target economy mode:
determining the opening degree of an accelerator pedal of a current period output by a control system of the target vehicle based on a target function;
and converting the opening and closing degree of the accelerator pedal based on the control system to obtain corresponding transmission torque to be used, so that the control system controls the target vehicle to run based on the transmission torque to be used.
7. The method of claim 6, wherein the determining the accelerator pedal opening degree for the current cycle of the control system output of the target vehicle based on the target function comprises:
acquiring the opening degree of a first accelerator pedal, the opening degree of a second accelerator pedal and a filter coefficient to be used of the target vehicle; the opening degree of the first accelerator pedal is the actual opening degree of the accelerator pedal of the target vehicle in the current period, and the opening degree of the second accelerator pedal is the opening degree of the accelerator pedal output by the control system in the last period;
obtaining a first result to be used according to the difference value of the opening degree of the first accelerator pedal and the opening degree of the second accelerator pedal;
multiplying the first result to be used and the filter coefficient to be used to obtain a first product;
determining the opening degree of the accelerator pedal of the current period output by the control system of the target vehicle based on the sum of the second opening degree of the accelerator pedal and the first product.
8. A vehicle control apparatus characterized by comprising:
the system comprises an information acquisition module, a target economic mode and a target vehicle control module, wherein the information acquisition module is used for acquiring the water temperature to be detected and the oil temperature to be detected of the target vehicle at the current moment when the target vehicle starts the target economic mode; the water temperature to be detected is the temperature of cooling liquid in an engine in the target vehicle, and the oil temperature to be detected is the temperature of transmission hydraulic oil in the target vehicle;
the economic mode determining module is used for determining the current economic mode of the target vehicle according to the water temperature to be detected and the oil temperature to be detected;
and the economic mode updating module is used for acquiring the current water temperature and the current oil temperature in the current economic mode, and updating the current economic mode based on the current water temperature and the current oil temperature until the current economic mode is the target economic mode.
9. An electronic device, characterized in that the electronic device comprises:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the vehicle control method of any one of claims 1-7.
10. A computer-readable storage medium storing computer instructions for causing a processor to implement the vehicle control method of any one of claims 1-7 when executed.
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