CN113291312B - Intelligent power assembly control method - Google Patents
Intelligent power assembly control method Download PDFInfo
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- CN113291312B CN113291312B CN202110679872.5A CN202110679872A CN113291312B CN 113291312 B CN113291312 B CN 113291312B CN 202110679872 A CN202110679872 A CN 202110679872A CN 113291312 B CN113291312 B CN 113291312B
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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
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/08—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to drivers or passengers
- B60W40/09—Driving style or behaviour
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/84—Data processing systems or methods, management, administration
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Abstract
The invention discloses an intelligent power assembly control method, which comprises the following steps: receiving a driving mode instruction; each control submodule in the power assembly executes a corresponding driving style under the driving mode; the vehicle end is preset with a plurality of driving modes for selection, each control submodule is preset with a plurality of driving styles for selection, and each driving mode is formed by combining the driving styles selected by each control submodule; and to allow modification of the drivability style of at least one control submodule in at least one of the preset driving modes. By the intelligent power assembly control method, various driving requirements of different calibration personnel are met; meanwhile, the driver can be opened to the combined stage, the driver actively participates in the matching control process, so that the driving pleasure of the driver is improved, and the complaint degree of the user on the unreasonable driving design is reduced.
Description
Technical Field
The invention relates to the technical field of vehicle control, in particular to an intelligent power assembly control method.
Background
The current universal matching method is that a driving mode including but not limited to an economic mode, a motion mode, a conventional mode, a ramp mode, a manual mode, a four-wheel drive mode, a low-speed four-wheel drive mode, a color mode, a sand mode and the like is determined, and then control matching is performed on a controller related to the driving mode. In the existing calibration process, a calibration person selects a judged driving mode according to performance target books and other inputs defined by vehicle types such as vehicle weight, style and the like, and then calibrates submodules such as accelerator characteristics, torque response, gear shifting rules, gear shifting quality and the like in a targeted manner, meanwhile, a user only has the right to select a large driving mode, cannot select each submodule such as accelerator characteristics, torque response, gear shifting rules and the like, and cannot meet the control requirements of all users on a whole vehicle power assembly module.
Disclosure of Invention
The invention aims to provide an intelligent power assembly control method, so that the same power assembly can adapt to different vehicle weights and styles and meet various driving requirements of different calibration personnel; meanwhile, the driver can be opened to the combined stage, the driver actively participates in the matching control process, so that the driving pleasure of the driver is improved, and the complaint degree of the user on the unreasonable driving design is reduced.
In order to achieve the purpose, the invention provides an intelligent power assembly control method, which comprises the following steps:
receiving a driving mode instruction;
each control submodule in the power assembly executes a corresponding driving style under the driving mode;
wherein, a plurality of driving modes are preset on the vehicle end for selection,
each control submodule is preset with a plurality of driving styles for selection, and each driving mode is formed by combining the driving styles selected by each control submodule; and to allow modification of the drivability style of at least one control submodule in at least one of the preset driving modes.
Further, the control submodule comprises an accelerator characteristic control submodule, a torque response control submodule, a gear shifting rule control submodule, a gear shifting quality control submodule, a four-wheel drive control submodule and a differential control submodule;
the driving style preset by the throttle characteristic control submodule comprises softness, meditation, movement and acceleration; wherein, each driving style is calibrated according to the external characteristics of the engine corresponding to the opening degree of the accelerator;
the preset driving style of the torque response control submodule comprises slow, smooth, rapid and violent; wherein each drivability style is calibrated according to a multiple of a response time when the vehicle is completely released;
the driving style preset by the gear shifting rule control submodule comprises low rotating speed, medium rotating speed, higher rotating speed and high rotating speed; wherein, each driving style is calibrated according to the opening degree of an accelerator and the rotating speed of an input shaft of the transmission;
the driving style preset by the gear shifting quality control submodule comprises smoothness, impact and impact; wherein, each drivability style is calibrated according to objective acceleration impact and subjective evaluation;
the driving style preset by the four-wheel drive control submodule comprises two-wheel drive, automatic four-wheel drive, locking four-wheel drive and four-wheel drive low gear;
the preset driving style of the differential control submodule comprises no locking, front axle locking, rear axle locking and front and rear axle locking.
Further, the driving style is calibrated according to the external characteristics of the engine corresponding to the opening degree of the accelerator, and the specific contents are as follows:
fully opening and calibrating the external characteristics of the engine corresponding to the first percentage of the accelerator to be soft, wherein the value range of the first percentage is (60 percent and 80 percent);
the full opening of the external characteristic of the engine corresponding to the second percent of the throttle is calibrated to be a middle grade, and the value range of the second percent is (40 percent, 60 percent);
marking the full opening of the third percent throttle corresponding to the external characteristics of the engine as motion, wherein the value range of the third percent is (25 percent and 40 percent);
the full opening of the fourth percent throttle corresponding to the external characteristics of the engine is marked as aggressive, and the numeric area of the fourth percent is (0 percent, 25 percent).
Further, the driving styles are calibrated according to multiples of response time when the automobile is completely released, and the specific contents are as follows:
calibrating the response time when the first preset multiple is completely released as slow;
calibrating the response time when the second preset multiple is completely released to be smooth;
calibrating the response time when the third preset multiple is completely released to be rapid;
calibrating the response time when the fourth preset multiple is completely released as a storm;
the first preset multiple is larger than the second preset multiple, the third preset multiple is larger than the fourth preset multiple;
further, the driving style is calibrated according to objective acceleration impact and subjective evaluation, and the specific contents are as follows:
the objective acceleration impact is less than or equal to 0.2m/S 2 And the subjective evaluation is marked as silky when the time is more than or equal to 8 minutes;
the objective acceleration is impacted by 0.2m/S 2 -0.6m/S 2 The subjective evaluation is more than 6 minutes and less than or equal to 7 minutes, and the time is calibrated to be smooth;
the objective acceleration is impacted by 0.6m/S 2 -1 m/S 2 And the subjective evaluation is marked as impact when the time is more than 5 minutes and less than or equal to 6 minutes;
the objective acceleration impact is more than 1m/S 2 And the subjective evaluation is not more than 5 minutes and is marked as the impact.
Further, a plurality of driving modes are preset according to vehicle types.
Further, the following steps are also performed: and prompting the capabilities of the driving style selected by each control submodule in the selected driving mode in the aspects of dynamic property, economy, smoothness and off-road trafficability.
Compared with the prior art, the invention has the following advantages:
according to the intelligent power assembly control method, various driving style maps are designed for each control submodule, different driving styles are shown by the control submodule through calibration, and the driving styles of the control submodules are combined, so that the whole power assembly integrally shows various specific driving styles, and the intelligent power assembly control method is suitable for different vehicle weights, styles and types of the same power assembly and various driving requirements of different calibration personnel; meanwhile, the driver can be opened to the combined stage, the driver actively participates in the matching control process, so that the driving pleasure of the driver is improved, and the complaint degree of the user on the unreasonable driving design is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent powertrain control method of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
Referring to fig. 1, the present embodiment discloses an intelligent powertrain control method, which includes the steps of:
receiving a driving mode instruction;
each control submodule in the power assembly executes a corresponding driving style under the driving mode;
wherein, a plurality of driving modes are preset on the vehicle end for selection,
each control submodule is preset with a plurality of driving styles for selection, and each driving mode is formed by combining the driving styles selected by each control submodule; and to allow modification of the drivability style of at least one control submodule in at least one of the preset driving modes.
For example, the following steps are carried out: the user reselects the economic mode through the human-computer interaction interface, and the economic mode calibrated by the original calibrating personnel is set as follows: the throttle characteristic: softening; torque response: smoothing; the gear shifting rule is as follows: the middle rotating speed; the gear shifting quality is as follows: smoothing; if the user is very sensitive to engine speed, the economy mode can be modified as: throttle characteristics: softening; torque response: smoothing; the gear shifting rule is as follows: low rotating speed; the gear shifting quality is as follows: smoothing; if the user pursues a slight impact feeling when shifting gears and the acceptance of the shifting quality is high, the economic mode can be modified as follows: throttle characteristics: softening; torque response: smoothing; the gear shifting rule is as follows: medium rotating speed; the gear shifting quality is as follows: impacting; meanwhile, although there is no security mutual exclusion among all the combinations, in order to ensure that the user can set according to own ideas and consider the data reasonability, the user can be guided to make the most wanted selection by combining the user requirements, the actual driving condition and the external environment; by this way, simultaneously, when the user uses the vehicle in specific operating mode such as grit way for a long time, can set for conventional mode and be: the throttle characteristic: motion, torque response: smooth-going, the law of shifting: high rotation speed, four-wheel drive control: locking four-wheel drive, and controlling a differential mechanism: locking a front axle; therefore, the system meets the requirements of users on the control of the power assembly system, and individually meets the driving requirements under various working conditions.
In this embodiment, the control submodule includes an accelerator characteristic control submodule, a torque response control submodule, a shift schedule control submodule, a shift quality control submodule, a four-wheel drive control submodule and a differential control submodule;
the driving style preset by the throttle characteristic control submodule comprises softness, mediocre, movement and acceleration; wherein, each driving style is calibrated according to the external characteristics of the engine corresponding to the opening degree of the accelerator;
the preset driving style of the torque response control submodule comprises slow, smooth, rapid and violent; wherein each drivability style is calibrated according to a multiple of a response time when the vehicle is completely released;
the driving style preset by the gear shifting rule control submodule comprises low rotating speed, medium rotating speed, higher rotating speed and high rotating speed; wherein, each driving style is calibrated according to the opening degree of an accelerator and the rotating speed of an input shaft of the transmission; specifically, the rotating speed of an input shaft of the transmission is calibrated by taking the rotating speed of the input shaft of the transmission at intervals of the accelerator of the fifth percentage from 0 percent to 100 percent in each gear. Optionally, the fifth percentage is equal to 10%, and in some embodiments, the fifth percentage may take other values, which are not limited herein. Specifically, according to the calibration method, a first average rotation speed, a second average rotation speed, a third average rotation speed and a fourth average rotation speed are calibrated and respectively correspond to a low rotation speed, a medium rotation speed, a high rotation speed and a high rotation speed; wherein the first average rotation speed < the second average rotation speed < the third average rotation speed < the fourth average rotation speed; in this embodiment, the first average rotation speed is equal to 3000rpm, the second average rotation speed is equal to 3300rpm, the third average rotation speed is equal to 3600rpm, and the fourth preset rotation speed is equal to 3900rpm, and in some embodiments, the first average rotation speed, the second average rotation speed, the third average rotation speed, and the fourth average rotation speed may take other values, which is not limited herein.
The driving style preset by the gear shifting quality control submodule comprises silkiness, smoothness, impact and impact; wherein each drivability style is calibrated according to objective acceleration shock and subjective evaluation.
The driving style preset by the four-wheel drive control submodule comprises two-wheel drive, automatic four-wheel drive, four-wheel drive locking and four-wheel drive low gear; the four-wheel drive transmission chain is disconnected, and only the main drive wheel is marked as two-wheel drive; the four-wheel drive transmission chain is timely combined according to conditions such as vehicle speed, accelerator and torque, and the four-wheel drive function is calibrated into automatic four-wheel drive under partial working conditions; and (4) jointing the four-wheel drive transmission chain, calibrating the four-wheel drive as the locking four-wheel drive, entering a lower gear through the four-wheel drive system, and outputting larger wheel torque to calibrate the four-wheel drive low gear.
The multiple driving styles preset by the differential control submodule comprise no locking, front axle locking, rear axle locking and front and rear axle locking. The front and rear axle differentials are not locked, and the left and right wheels of the front and rear axles can have a rotation speed difference and are calibrated to be unlocked; the front axle is locked, no rotating speed difference exists, the rear axle is unlocked, and the rotating speed difference can exist and can be marked as the front axle is locked; the rear axle is locked without rotating speed difference; the front axle is not locked, and the rotation speed difference can exist and is calibrated as the locking of the rear axle; the front axle and the rear axle are locked, and the front axle and the rear axle are locked without rotation speed difference.
In this embodiment, each drivability style is calibrated according to the external characteristics of the engine corresponding to the opening degree of the accelerator, and the specific contents are as follows:
fully opening and calibrating the external characteristics of the engine corresponding to the first percentage of the accelerator to be soft, wherein the value range of the first percentage is (60 percent and 80 percent);
the full opening of the external characteristic of the engine corresponding to the second percent of the throttle is calibrated to be a middle grade, and the value range of the second percent is (40 percent, 60 percent);
the full opening of the third percent throttle corresponding to the external characteristics of the engine is marked as movement, and the value range of the third percent is (25 percent, 40 percent);
the full opening of the fourth percent throttle corresponding to the external characteristics of the engine is marked as aggressive, and the numeric area of the fourth percent is (0 percent, 25 percent).
In this embodiment, the driving styles are calibrated according to multiples of response time when the vehicle is completely released, and the specific contents are as follows:
calibrating the response time when the first preset multiple is completely released as slow;
calibrating the response time when the second preset multiple is completely released as smooth;
calibrating the response time when the third preset multiple is completely released to be rapid;
calibrating the response time when the fourth preset multiple is completely released as a storm;
the first preset multiple is larger than the second preset multiple, the third preset multiple is larger than the fourth preset multiple; optionally, the slow finger is 4 times the response time when fully released; smooth finger 3 times response time when fully released; quickly indicating 2 times of response time when fully released; the storm refers to the response time when the automobile is completely released, the fire path and the gas path are response target torques, and the actual torque reaches the maximum rising slope.
In this embodiment, each drivability style is calibrated according to objective acceleration shock and subjective evaluation, and the specific contents are as follows:
the objective acceleration impact is less than or equal to 0.2m/S 2 And the subjective evaluation is marked as silky when the time is more than or equal to 8 minutes;
the objective acceleration is impacted by 0.2m/S 2 -0.6m/S 2 The subjective evaluation is more than 6 minutes and less than or equal to 7 minutes, and the time is calibrated to be smooth;
the objective acceleration is impacted by 0.6m/S 2 -1 m/S 2 And the subjective evaluation is marked as impact when the time is more than 5 minutes and less than or equal to 6 minutes;
the objective acceleration impact is more than 1m/S 2 And the subjective evaluation is not more than 5 minutes and is marked as the impact.
In the present embodiment, a plurality of driving modes are preset according to vehicle types.
In this embodiment, the presetting of multiple driving modes according to vehicle types specifically includes the following steps:
if the vehicle type matched with the power assembly is an economy type car, the multiple driving modes comprise an economy mode, a conventional mode and a motion mode, each driving mode comprises the driving style selected by each control submodule, and the following specific tables are provided:
if the vehicle type matched with the power assembly is an economic SUV, the multiple driving modes comprise an economic mode, a conventional mode and a motion mode, each driving mode comprises the driving style selected by each control submodule, and the driving style is specifically as follows:
if the vehicle type matched with the power assembly is a sports car, the multiple driving modes comprise an economy mode, a conventional mode and a sports mode, each driving mode comprises a driving style selected by each control submodule, and the driving style is specifically as follows:
if the vehicle type matched with the power assembly is a sport SUV, multiple driving modes comprise an economy mode, a conventional mode and a sport mode, each driving mode comprises a driving style selected by each control submodule, and the following specific tables are provided:
if the vehicle type matched with the power assembly is a hard off-road vehicle, multiple driving modes comprise an economy mode, a conventional mode, a sport mode and an off-road mode, each driving mode comprises a driving style selected by each control submodule, and the following specific tables are provided:
. The driving problems such as the dragging of the whole vehicle and the like caused by the vehicle type, the vehicle weight and the style are avoided through the preset multiple driving modes.
In this embodiment, the following steps are also performed: and prompting the capabilities of the driving style selected by each control submodule in the selected driving mode in the aspects of dynamic property, economy, smoothness and off-road trafficability. The content of each drivability style presentation is shown in table 1:
TABLE 1
After the control submodules of the same power assembly are subdivided and calibrated, the combination can be slightly adjusted according to the changes of the vehicle weight and the vehicle style so as to adapt to the driving requirements of new vehicles; each common mode can be set according to the subjective intention of a calibration worker, so that the use requirements of most customers are met; the driving style suitable for the user can be freely set through a human-computer interaction interface according to the driving characteristics of the user, and the intelligent control requirement on the power assembly is completely met; meanwhile, the intelligent power assembly control method has ductility, and various control units can be freely combined according to the hardware condition of the power assembly; when the power assembly is connected with software and hardware such as a four-wheel drive control system, a differential control system and the like, the power assembly can be directly connected with an intelligent power assembly control bus and is integrated as a newly added power assembly submodule; the whole intelligent power assembly control system not only can cover power related sub-components, but also can be accessed into an ESP (electronic stability program), EPS (electric Power storage), ABS (anti-lock brake system) and other whole vehicle driving systems, and is used as one of the control assemblies to participate in combination to form a more intelligent whole vehicle intelligent assembly control system.
According to the intelligent power assembly control method, various driving style maps are designed for each control submodule, different driving styles are shown by the control submodule through calibration, and the driving styles of the control submodules are combined, so that the whole power assembly integrally shows various specific driving styles, and the intelligent power assembly control method is suitable for different vehicle weights and styles of the same power assembly and various driving requirements of different calibration personnel; meanwhile, the driver can be opened to the combined stage, the driver actively participates in the matching control process, so that the driving pleasure of the driver is improved, and the complaint degree of the user on the unreasonable driving design is reduced.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the above teachings. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (5)
1. An intelligent power assembly control method is characterized by comprising the following steps:
receiving a driving mode instruction;
each control submodule in the power assembly executes a corresponding driving style under the driving mode;
wherein, a plurality of driving modes are preset on the vehicle end for selection,
each control submodule is preset with a plurality of driving styles for selection, and each driving mode is formed by combining the driving styles selected by each control submodule; and allowing modification of the drivability style of at least one control submodule in at least one of the preset driving modes;
the control submodule comprises an accelerator characteristic control submodule, a torque response control submodule, a gear shifting rule control submodule, a gear shifting quality control submodule, a four-wheel drive control submodule and a differential control submodule;
the driving style preset by the throttle characteristic control submodule comprises softness, meditation, movement and acceleration; wherein, each driving style is calibrated according to the external characteristics of the engine corresponding to the opening degree of the accelerator;
the preset driving style of the torque response control submodule comprises slow, smooth, rapid and violent; wherein, each drivability style is calibrated according to the multiple of the response time when the vehicle is completely released;
the driving style preset by the gear shifting rule control submodule comprises a low rotating speed, a medium rotating speed, a higher rotating speed and a high rotating speed; wherein, each driving style is calibrated according to the opening degree of an accelerator and the rotating speed of an input shaft of the transmission;
the driving style preset by the gear shifting quality control submodule comprises smoothness, impact and impact; wherein, each drivability style is calibrated according to objective acceleration impact and subjective evaluation;
the driving style preset by the four-wheel drive control submodule comprises two-wheel drive, automatic four-wheel drive, locking four-wheel drive and four-wheel drive low gear;
the preset driving style of the differential control submodule comprises no locking, front axle locking, rear axle locking and front and rear axle locking;
the driving style is calibrated according to the external characteristics of the engine corresponding to the opening degree of the accelerator, and the specific contents are as follows:
fully opening and calibrating the external characteristics of the engine corresponding to the first percentage of the accelerator to be soft, wherein the value range of the first percentage is (60 percent and 80 percent);
the full opening of the external characteristic of the engine corresponding to the second percent of the throttle is calibrated to be a middle grade, and the value range of the second percent is (40 percent, 60 percent);
the full opening of the third percent throttle corresponding to the external characteristics of the engine is marked as movement, and the value range of the third percent is (25 percent, 40 percent);
the full opening of the fourth percent throttle corresponding to the external characteristics of the engine is marked as aggressive, and the numeric area of the fourth percent is (0 percent, 25 percent).
2. The intelligent powertrain control method of claim 1, wherein each driveability style is calibrated according to a multiple of a response time when fully released, as follows:
calibrating the response time when the first preset multiple is completely released as slow;
calibrating the response time when the second preset multiple is completely released to be smooth;
calibrating the response time when the third preset multiple is completely released to be rapid;
calibrating the response time when the fourth preset multiple is completely released as a storm;
the first preset multiple > the second preset multiple > the third preset multiple > the fourth preset multiple.
3. The intelligent powertrain control method of claim 1 or 2, wherein each drivability style is calibrated according to objective acceleration jerk and subjective evaluation, and the specific content is as follows:
the objective acceleration impact is less than or equal to 0.2m/S, and the subjective evaluation is greater than or equal to 8 minutes, and the objective acceleration impact is marked as silky;
calibrating the objective acceleration impact 0.2 m/S-0.6 m/S as smooth when the subjective evaluation is greater than 6 min and less than or equal to 7 min;
calibration of objective acceleration impact 0.6 m/S-1 m/S and subjective evaluation being greater than 5 minutes and less than or equal to 6 minutes as impact;
the objective acceleration impact is greater than 1m/S, and the subjective evaluation is not greater than 5 time-sharing, and the time-sharing is calibrated to be the impact.
4. The intelligent powertrain control method of claim 3, wherein a plurality of driving modes are preset according to vehicle types.
5. The intelligent powertrain control method of claim 1, 2 or 4, further performing the steps of: and prompting the capabilities of the driving style selected by each control submodule in the selected driving mode in the aspects of power, economy, smoothness and cross-country trafficability.
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