CN114248784A - Data processing method and system for engine torque conversion - Google Patents

Data processing method and system for engine torque conversion Download PDF

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Publication number
CN114248784A
CN114248784A CN202111446450.XA CN202111446450A CN114248784A CN 114248784 A CN114248784 A CN 114248784A CN 202111446450 A CN202111446450 A CN 202111446450A CN 114248784 A CN114248784 A CN 114248784A
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automobile
reserve
gearbox
data processing
engine
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CN114248784B (en
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陈小艳
况太椿
马超
刘勇
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Jiangling Motors Corp Ltd
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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
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • 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
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W2050/0001—Details of the control system
    • B60W2050/0002—Automatic control, details of type of controller or control system architecture
    • B60W2050/0004—In digital systems, e.g. discrete-time systems involving sampling
    • B60W2050/0005—Processor details or data handling, e.g. memory registers or chip architecture

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Human Computer Interaction (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The invention discloses a data processing method and a data processing system for engine torque conversion, wherein the method comprises the following steps: acquiring dynamic calculation boundary parameters of data processing, wherein the dynamic calculation boundary parameters are basic attribute parameters of an automobile and at least comprise basic attribute parameters of an engine and a gearbox; calculating the adhesion traction and the running resistance of the automobile under various working conditions according to the basic attribute parameters of the automobile, and calculating the driving force of the automobile according to the adhesion traction and the running resistance of the automobile; acquiring speed ratio information of the gearbox in each gear according to basic attribute parameters of the gearbox; according to the driving force of the automobile and the speed ratio of the gearbox in each gear, the acceleration capacity of the traction force reserve in each gear is calculated, and the power reserve and the torque reserve of the engine in each gear are calculated. The invention aims to calculate the torque conversion of the engine, ensure the matching state of the engine and the gearbox to be in a better level and improve the driving experience of a user.

Description

Data processing method and system for engine torque conversion
Technical Field
The invention relates to the technical field of automobiles, in particular to a data processing method and system for engine torque conversion.
Background
For the calibration of the powertrain performance of a fuel-powered vehicle, the engine and the transmission must be adapted to take into account other parameters of the vehicle, such as the vehicle weight, the body size, the chassis and drive system configuration, the usual driving conditions, etc.
In some cases, even with the same powertrain, it may perform well on one vehicle model, but perform poorly on another vehicle model. Therefore, the degree of matching between the engine and the gearbox directly influences the overall performance phenotype of the automobile. Therefore, data processing for engine torque conversion has been one of the research directions of those skilled in the art.
Disclosure of Invention
Based on this, the invention aims to provide a data processing method and system for engine torque conversion, which aim to calculate the engine torque conversion and can ensure that the matching state of an engine and a gearbox is in a better level, thereby improving the driving experience of a user.
A first aspect of the present invention provides a data processing method of engine torque conversion, the method comprising:
acquiring dynamic calculation boundary parameters of data processing, wherein the dynamic calculation boundary parameters are basic attribute parameters of an automobile and at least comprise basic attribute parameters of an engine and a gearbox;
according to the basic attribute parameters of the automobile, calculating the adhesion traction and the running resistance of the automobile under various working conditions, and calculating the driving force of the automobile according to the adhesion traction and the running resistance of the automobile;
acquiring speed ratio information of the gearbox in each gear according to the basic attribute parameters of the gearbox;
and calculating the acceleration capacity of the traction force reserve in each gear according to the driving force of the automobile and the speed ratio of the gearbox in each gear, and calculating the power reserve and the torque reserve of the engine in each gear.
According to an aspect of the foregoing technical solution, the dynamic calculation boundary parameter further includes:
the mass of the whole automobile, the mass of the full load, the windward area, the wind resistance coefficient, the dynamic radius of the tire, the friction coefficient, the steady-state dynamic parameter of the whole automobile, the transient dynamic parameter or the acceleration characteristic of the whole automobile, the rolling radius, the rolling resistance coefficient, the transmission efficiency of a power system, the economic parameter of the whole automobile, the gravity acceleration and the performance indexes of the whole automobile comprise the highest automobile speed, the maximum climbing gradient, the maximum climbing automobile speed, the acceleration time of 0-50km/h and the acceleration time of 0-100 km/h.
According to one aspect of the above technical solution, the calculation formulas of the traction force, the vehicle speed, and the maximum traction reserve are respectively:
Figure BDA0003384091800000021
Figure BDA0003384091800000022
Figure BDA0003384091800000023
in the formula: f is tractive effort, T is engine torque, R is road resistance, ittlIs the total speed ratio, RdynIs the dynamic radius, eta, of the tirettlFor total transmission efficiency, Δ FreserveMaximum traction reserve, m vehicle weight, f friction coefficient, alpha slope angle, Cd wind resistance coefficient, and rho air density.
According to one aspect of the above technical solution, the calculation formula of the road resistance is:
Figure BDA0003384091800000024
in the formula: m is the vehicle weight, f is the friction coefficient, alpha is the slope angle, Cd is the wind resistance coefficient, and rho air is the air density.
According to one aspect of the above technical solution, the formula for calculating the angle of attack is:
α＝Sin-1(ΔFreserve/mg)
a＝ΔFreserve/(ξ×m)。
a second aspect of the present invention is to provide a data processing system for engine torque conversion, the system comprising:
the attribute parameter acquisition module is used for acquiring dynamic calculation boundary parameters of data processing, wherein the dynamic calculation boundary parameters are basic attribute parameters of an automobile and at least comprise basic attribute parameters of an engine and a gearbox;
the first processing module is used for calculating the adhesion traction and the running resistance of the automobile under various working conditions according to the basic attribute parameters of the automobile and calculating the driving force of the automobile according to the adhesion traction and the running resistance of the automobile;
the speed ratio information acquisition module is used for acquiring speed ratio information of the gearbox in each gear according to the basic attribute parameters of the gearbox;
and the second processing module is used for calculating the acceleration capacity of the traction force reserve in each gear according to the driving force of the automobile and the speed ratio of the gearbox in each gear, and calculating the power reserve and the torque reserve of the engine in each gear.
According to one aspect of the foregoing technical solution, the first processing module is configured to calculate a traction force, a vehicle speed, and a maximum traction reserve, where the calculation formulas of the traction force, the vehicle speed, and the maximum traction reserve are respectively:
Figure BDA0003384091800000031
Figure BDA0003384091800000032
Figure BDA0003384091800000033
in the formula: f is traction force, T is engine torque, and R is road resistanceForce, ittlIs the total speed ratio, RdynIs the dynamic radius, eta, of the tirettlFor total transmission efficiency, Δ FreserveMaximum traction reserve, m vehicle weight, f friction coefficient, alpha slope angle, Cd wind resistance coefficient, and rho air density.
According to an aspect of the foregoing technical solution, the first processing module is further configured to calculate a road resistance, where a calculation formula of the road resistance is:
Figure BDA0003384091800000034
in the formula: m is the vehicle weight, f is the friction coefficient, alpha is the slope angle, Cd is the wind resistance coefficient, and rho air is the air density.
A third aspect of the present invention is to provide a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the above-described data processing method of engine torque conversion.
A third aspect of the present invention is to provide a computer apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the above data processing method of engine torque conversion when executing the program.
Compared with the prior art, the data processing method and the data processing system for the engine torque conversion have the advantages that: the method comprises the steps of calculating boundary parameters by determining the dynamic property of data processing, acquiring speed ratio information of a gearbox, calculating the attached traction and the driving resistance of the automobile under various working conditions according to basic attribute parameters of the automobile, calculating the driving force of the automobile according to the attached traction and the driving resistance of the automobile, calculating the acceleration capacity of the traction reserve in each gear according to the driving force of the automobile and the speed ratio of the gearbox in each gear, calculating the power reserve and the torque reserve of an engine in each gear, and after calculating the torque conversion of the engine, ensuring the matching state of the engine and the gearbox to be at a better level, thereby improving the driving experience of a user.
Drawings
FIG. 1 is a flow chart of a data processing method of engine torque conversion in a first embodiment of the present invention;
FIG. 2 is a diagram showing the relationship between the vehicle speed and the driving force in each gear according to the second embodiment of the present invention;
FIG. 3 is a block diagram of a data processing system for engine torque conversion in a third embodiment of the present invention;
the following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example one
Referring to fig. 1, a first embodiment of the present invention provides a data processing method for engine torque conversion, the method including steps S10-S40:
step S10, acquiring dynamic calculation boundary parameters of data processing, wherein the dynamic calculation boundary parameters are basic attribute parameters of an automobile and at least comprise basic attribute parameters of an engine and a gearbox;
the dynamic calculation boundary parameters of the data processing, namely the basic attribute parameters of the automobile, include but are not limited to: basic attribute parameters of an engine and a gearbox in a power assembly; and the service mass, the full load mass, the windward area, the wind resistance coefficient, the dynamic radius of the tire, the friction coefficient, the steady-state dynamic parameters of the whole automobile, the transient dynamic parameters or the acceleration characteristics of the whole automobile, the rolling radius, the rolling resistance coefficient, the transmission efficiency of a power system, the economic parameters of the whole automobile, the gravity acceleration and the performance indexes of the whole automobile comprise the highest automobile speed, the maximum climbing gradient, the maximum climbing automobile speed, the acceleration time of 0-50km/h and the acceleration time of 0-100 km/h.
Specifically, the dynamic calculation boundary parameters are input to a computer device, and the traction force, the running resistance, and the driving force of the automobile are calculated based on the required parameters.
Step S20, calculating the traction and the driving resistance of the automobile under various working conditions according to the basic attribute parameters of the automobile, and calculating the driving force of the automobile according to the traction and the driving resistance of the automobile;
the driving power of the whole vehicle is equal to the vehicle speed V, and the traction force F required by overcoming the road resistance is overcome;
vehicle speed V ═ (engine angular speed/total speed ratio) tire dynamic radius;
traction force F ═ (engine torque T total speed ratio total transmission efficiency)/tire dynamic radius;
maximum tractive effort reserve Δ FreserveTraction F-road resistance R.
Step S30, acquiring speed ratio information of the gearbox in each gear according to the basic attribute parameters of the gearbox;
the gear information of the gearbox can be obtained according to basic attribute parameters of the gearbox, the specific number of gears of the gearbox and the speed ratio information of each gear are determined according to the gear information of the gearbox, and the speed ratio information of the gearbox is input into computer equipment by obtaining the speed ratio information of the gearbox to participate in calculation of engine torque conversion.
And step S40, calculating the acceleration capacity of the traction force reserve in each gear according to the driving force of the automobile and the speed ratio of the gearbox in each gear, and calculating the power reserve and the torque reserve of the engine in each gear.
Specifically, the processed dynamic calculation boundary parameters are read, parameters of calculation requirements are input in a data processing interface of computer equipment, the acceleration capacity of each gear given by the traction force reserve of the whole vehicle is obtained, the power reserve and the torque reserve of the engine in each gear are calculated, and the dynamic calculation of matching of the engine and the whole vehicle is completed.
Compared with the prior art, the data processing method for converting the engine torque disclosed by the embodiment has the beneficial effects that: the method comprises the steps of calculating boundary parameters by determining the dynamic property of data processing, acquiring speed ratio information of a gearbox, calculating the attached traction and the driving resistance of the automobile under various working conditions according to basic attribute parameters of the automobile, calculating the driving force of the automobile according to the attached traction and the driving resistance of the automobile, calculating the acceleration capacity of the traction reserve in each gear according to the driving force of the automobile and the speed ratio of the gearbox in each gear, calculating the power reserve and the torque reserve of an engine in each gear, and after calculating the torque conversion of the engine, ensuring the matching state of the engine and the gearbox to be at a better level, thereby improving the driving experience of a user.
Example two
The second embodiment of the present invention provides a data processing method for engine torque conversion, the method shown in the second embodiment of the present invention:
specifically, in this embodiment, the calculation formulas of the traction force, the vehicle speed, and the maximum traction reserve are respectively:
Figure BDA0003384091800000061
Figure BDA0003384091800000062
Figure BDA0003384091800000063
in the formula: f is tractive effort, T is engine torque, R is road resistance, ittlIs the total speed ratio, RdynIs the dynamic radius, eta, of the tirettlFor total transmission efficiency, Δ FreserveMaximum traction reserve, m vehicle weight, f friction coefficient, alpha slope angle, Cd wind resistance coefficient, and rho air density.
In this embodiment, the calculation formula of the road resistance is:
Figure BDA0003384091800000064
in the formula: m is the vehicle weight, f is the friction coefficient, alpha is the slope angle, Cd is the wind resistance coefficient, and rho air is the air density.
In this embodiment, the formula for calculating the attack angle is as follows:
α＝sin-1(ΔFreserve/mg)
a＝ΔFreserve/(ξ×m)。
the power reserve and the torque reserve of the engine at each gear can be quickly obtained by calculating through the formula, so that the matching state of the engine and the gearbox is effectively calibrated, and the driving experience of a user is improved.
In this embodiment. When the gearbox is matched, the torque and the power range of the engine must be known, and it should be ensured that the maximum power and the torque of the engine must be equivalent to the working power and the torque of the gearbox under any working condition so as to avoid underdesign or over-design.
Referring to fig. 2, the gear ratios of the transmission must be well matched, and the torque of the transmission cannot exceed the maximum torque of the transmission when the transmission is designed under any working condition. The speed ratio design of the gearbox must have performance target pertinence when being developed in the early stage: either fuel economy or power, or both.
Sufficient engine torque and power must be available to support the driver's driving intent when shifting the transmission. For example, in preparation for a vehicle overrun, the engine must have sufficient torque (or torque margin) to support the engine after a gear shift.
In the embodiment, for the performance calibration of the power assembly, the engine and the gearbox should be calibrated at the same time to achieve the best overall performance.
EXAMPLE III
Referring to FIG. 3, a third embodiment of the present invention provides a data processing system for engine torque conversion, the system comprising:
the attribute parameter acquisition module 10 is used for acquiring dynamic calculation boundary parameters of data processing, wherein the dynamic calculation boundary parameters are basic attribute parameters of an automobile and at least comprise basic attribute parameters of an engine and a gearbox;
the dynamic calculation boundary parameters of the data processing, namely the basic attribute parameters of the automobile, include but are not limited to: basic attribute parameters of an engine and a gearbox in a power assembly; and the service mass, the full load mass, the windward area, the wind resistance coefficient, the dynamic radius of the tire, the friction coefficient, the steady-state dynamic parameters of the whole automobile, the transient dynamic parameters or the acceleration characteristics of the whole automobile, the rolling radius, the rolling resistance coefficient, the transmission efficiency of a power system, the economic parameters of the whole automobile, the gravity acceleration and the performance indexes of the whole automobile comprise the highest automobile speed, the maximum climbing gradient, the maximum climbing automobile speed, the acceleration time of 0-50km/h and the acceleration time of 0-100 km/h.
Specifically, the dynamic calculation boundary parameters are input to a computer device, and the traction force, the running resistance, and the driving force of the automobile are calculated based on the required parameters.
The first processing module 20 is configured to calculate an adhesion traction and a driving resistance of the automobile under various working conditions according to the basic attribute parameters of the automobile, and calculate a driving force of the automobile according to the adhesion traction and the driving resistance of the automobile;
the driving power of the whole vehicle is equal to the vehicle speed V, and the traction force F required by overcoming the road resistance is overcome;
vehicle speed V ═ (engine angular speed/total speed ratio) tire dynamic radius;
traction force F ═ (engine torque T total speed ratio total transmission efficiency)/tire dynamic radius;
maximum tractive effort reserve Δ FreserveTraction F-road resistance R.
The speed ratio information acquisition module 30 is configured to acquire speed ratio information of the gearbox in each gear according to the basic attribute parameter of the gearbox;
the gear information of the gearbox can be obtained according to basic attribute parameters of the gearbox, the specific number of gears of the gearbox and the speed ratio information of each gear are determined according to the gear information of the gearbox, and the speed ratio information of the gearbox is input into computer equipment by obtaining the speed ratio information of the gearbox to participate in calculation of engine torque conversion.
And the second processing module 40 is used for calculating the acceleration capacity of the traction force reserve in each gear according to the driving force of the automobile and the speed ratio of the gearbox in each gear, and calculating the power reserve and the torque reserve of the engine in each gear.
Specifically, the processed dynamic calculation boundary parameters are read, parameters of calculation requirements are input in a data processing interface of computer equipment, the acceleration capacity of each gear given by the traction force reserve of the whole vehicle is obtained, the power reserve and the torque reserve of the engine in each gear are calculated, and the dynamic calculation of matching of the engine and the whole vehicle is completed.
In this embodiment, the first processing module is configured to calculate a traction force, a vehicle speed, and a maximum traction reserve, where the calculation formulas of the traction force, the vehicle speed, and the maximum traction reserve are respectively:
Figure BDA0003384091800000091
Figure BDA0003384091800000092
Figure BDA0003384091800000093
in the formula: f is tractive effort, T is engine torque, R is road resistance, ittlIs the total speed ratio, RdynIs the dynamic radius, eta, of the tirettlFor total transmission efficiency, Δ FreserveIs maximum traction reserve, m is vehicle weight, f is friction coefficient, alpha is slope angle,Cd is the wind resistance coefficient and rho air is the air density.
Further, the first processing module is further configured to calculate a road resistance, where the calculation formula of the road resistance is:
Figure BDA0003384091800000094
in the formula: m is the vehicle weight, f is the friction coefficient, alpha is the slope angle, Cd is the wind resistance coefficient, and rho air is the air density.
Compared with the prior art, the data processing system for converting the engine torque shown in the embodiment has the advantages that: the method comprises the steps of calculating boundary parameters by determining the dynamic property of data processing, acquiring speed ratio information of a gearbox, calculating the attached traction and the driving resistance of the automobile under various working conditions according to basic attribute parameters of the automobile, calculating the driving force of the automobile according to the attached traction and the driving resistance of the automobile, calculating the acceleration capacity of the traction reserve in each gear according to the driving force of the automobile and the speed ratio of the gearbox in each gear, calculating the power reserve and the torque reserve of an engine in each gear, and after calculating the torque conversion of the engine, ensuring the matching state of the engine and the gearbox to be at a better level, thereby improving the driving experience of a user.
Example four
A fourth embodiment of the present invention provides a computer-readable storage medium having stored thereon computer instructions which, when executed by a processor, carry out the steps of the data processing method of engine torque conversion according to the above-described embodiments.
EXAMPLE five
A fifth embodiment of the present invention provides a computer apparatus comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the data processing method of engine torque conversion in the above-described embodiments when executing the program.
Those of skill in the art will understand that the logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be viewed as implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A method of data processing for engine torque conversion, the method comprising:
acquiring dynamic calculation boundary parameters of data processing, wherein the dynamic calculation boundary parameters are basic attribute parameters of an automobile and at least comprise basic attribute parameters of an engine and a gearbox;
according to the basic attribute parameters of the automobile, calculating the adhesion traction and the running resistance of the automobile under various working conditions, and calculating the driving force of the automobile according to the adhesion traction and the running resistance of the automobile;
acquiring speed ratio information of the gearbox in each gear according to the basic attribute parameters of the gearbox;
and calculating the acceleration capacity of the traction force reserve in each gear according to the driving force of the automobile and the speed ratio of the gearbox in each gear, and calculating the power reserve and the torque reserve of the engine in each gear.
2. The data processing method of engine torque conversion according to claim 1, wherein the dynamics calculation boundary parameter further includes:
the mass of the whole automobile, the mass of the full load, the windward area, the wind resistance coefficient, the dynamic radius of the tire, the friction coefficient, the steady-state dynamic parameter of the whole automobile, the transient dynamic parameter or the acceleration characteristic of the whole automobile, the rolling radius, the rolling resistance coefficient, the transmission efficiency of a power system, the economic parameter of the whole automobile, the gravity acceleration and the performance indexes of the whole automobile comprise the highest automobile speed, the maximum climbing gradient, the maximum climbing automobile speed, the acceleration time of 0-50km/h and the acceleration time of 0-100 km/h.
3. The data processing method for engine torque conversion according to claim 1, wherein the calculation formulas of the traction force, the vehicle speed and the maximum traction force reserve are respectively:
Figure FDA0003384091790000011
Figure FDA0003384091790000012
Figure FDA0003384091790000013
in the formula: f is tractive effort, T is engine torque, R is road resistance, ittlIs the total speed ratio, RdynIs the dynamic radius, eta, of the tirettlFor total transmission efficiency, Δ FreserveMaximum traction reserve, m vehicle weight, f friction coefficient, alpha slope angle, Cd wind resistance coefficient, and rho air density.
4. The data processing method of engine torque conversion according to claim 3, characterized in that the calculation formula of the road resistance is:
Figure FDA0003384091790000021
in the formula: m is the vehicle weight, f is the friction coefficient, alpha is the slope angle, Cd is the wind resistance coefficient, and rho air is the air density.
5. The data processing method of engine torque conversion according to claim 4, characterized in that the calculation formula of the inclination angle is:
α＝sin-1(ΔFreserve/mg)
a＝ΔFreserve/(ξ×m)。
6. a data processing system for engine torque conversion, the system comprising:
the attribute parameter acquisition module is used for acquiring dynamic calculation boundary parameters of data processing, wherein the dynamic calculation boundary parameters are basic attribute parameters of an automobile and at least comprise basic attribute parameters of an engine and a gearbox;
the first processing module is used for calculating the adhesion traction and the running resistance of the automobile under various working conditions according to the basic attribute parameters of the automobile and calculating the driving force of the automobile according to the adhesion traction and the running resistance of the automobile;
the speed ratio information acquisition module is used for acquiring speed ratio information of the gearbox in each gear according to the basic attribute parameters of the gearbox;
and the second processing module is used for calculating the acceleration capacity of the traction force reserve in each gear according to the driving force of the automobile and the speed ratio of the gearbox in each gear, and calculating the power reserve and the torque reserve of the engine in each gear.
7. The data processing system for engine torque conversion according to claim 6, wherein the first processing module is configured to calculate a tractive force, a vehicle speed, and a maximum tractive force reserve, wherein the calculation formulas of the tractive force, the vehicle speed, and the maximum tractive force reserve are respectively:
Figure FDA0003384091790000022
Figure FDA0003384091790000023
Figure FDA0003384091790000024
in the formula: f is tractive effort, T is engine torque, R is road resistance, ittlIs the total speed ratio, RdynIs the dynamic radius, eta, of the tirettlFor total transmission efficiency, Δ FreserveMaximum traction reserve, m vehicle weight, f friction coefficient, alpha slope angle, Cd wind resistance coefficient, and rho air density.
8. The engine torque conversion data processing system of claim 7, wherein the first processing module is further configured to calculate a road resistance, wherein the road resistance is calculated by the equation:
Figure FDA0003384091790000031
in the formula: m is the vehicle weight, f is the friction coefficient, alpha is the slope angle, Cd is the wind resistance coefficient, and rho air is the air density.
9. A computer-readable storage medium having stored thereon computer instructions, which when executed by a processor, perform the steps of the method of any one of claims 1 to 5.
10. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method according to any of claims 1-5 when executing the program.
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