CN109357875B - Online calibration method and system for engine - Google Patents
Online calibration method and system for engine Download PDFInfo
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- CN109357875B CN109357875B CN201811463591.0A CN201811463591A CN109357875B CN 109357875 B CN109357875 B CN 109357875B CN 201811463591 A CN201811463591 A CN 201811463591A CN 109357875 B CN109357875 B CN 109357875B
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Abstract
The invention provides an on-line calibration method and system of an engine, wherein the method comprises the following steps: the engine outputs the performance parameters to the performance test platform; the performance test platform receives the performance parameters, obtains universal characteristic data according to the performance parameters, and outputs the universal characteristic data to the whole vehicle chassis platform; the whole vehicle chassis platform receives the universal characteristic data and judges whether the universal characteristic data is matched with the whole vehicle characteristic data; if the judgment result is yes, the whole vehicle chassis platform outputs a calibration signal to the engine through the performance test platform, and the engine receives the calibration signal and performs calibration at a calibration end; if the judgment result is negative, the whole vehicle chassis platform outputs the whole vehicle characteristic data to the engine through the performance test platform, the engine receives the whole vehicle characteristic data, updates the engine performance parameters according to the whole vehicle characteristic data and outputs the engine performance parameters to the performance test platform, and the calibration method and the calibration system circulate until the judgment result is positive, so that the whole vehicle requirements can be effectively reflected, and the development period is shortened.
Description
Technical Field
The invention relates to the field of engines, in particular to an online calibration method and system for an engine.
Background
The calibration is the process of optimizing software data in order to obtain satisfactory performance parameters, meet customer requirements and reach national standards after the algorithm and peripheral devices of the engine, the whole vehicle and the system are determined. The whole vehicle performance comprises: drivability, dynamics, economy, durability, environmental suitability, emissions, etc., for which performance is a hard index that is national standard specification and must be passed.
In the prior art, the calibration and the test of the engine are only carried out on a test bench, the calibration and the test of the test bench are open-loop operation, the data of external characteristics, rotation speed characteristics, universal characteristics and the like of the engine calibrated under the system are only remained on a theoretical level and cannot fit with the actual requirements of the whole vehicle, so that the actual working progress is influenced by hysteresis because the calibration and the adjustment are carried out again according to the actual working condition of the whole vehicle when the whole vehicle is carried.
Disclosure of Invention
The invention provides an on-line calibration method of an engine, and aims to solve the technical problems in the prior art.
The invention provides an on-line calibration method of an engine, which comprises the following steps:
the engine outputs engine performance parameters to the performance test platform;
the performance test platform receives the engine performance parameters, obtains engine universal characteristic data according to the engine performance parameters, and outputs the engine universal characteristic data to the whole vehicle chassis platform;
the whole vehicle chassis platform receives the universal characteristic data of the engine and judges whether the universal characteristic data of the engine is matched with the whole vehicle characteristic data in the universal characteristic data of the engine;
if the judgment result is yes, the whole vehicle chassis platform outputs a calibration signal to the engine through the performance test platform, and the engine receives the calibration signal and performs calibration at a calibration end;
if the result is negative, the whole vehicle chassis platform outputs the whole vehicle characteristic data to the engine through the performance test platform, the engine receives the whole vehicle characteristic data and updates the engine performance parameters according to the whole vehicle characteristic data, and the updated engine performance parameters are output to the performance test platform, so that the cycle is circulated until the result is positive.
Further, the method further comprises the following steps:
the engine outputs the rotating speed and torque parameters in the engine performance parameters to a speed changing system;
the speed change system receives the rotation speed and torque parameters, converts the rotation speed and torque parameters to obtain changed rotation speed and torque parameters, and outputs the changed rotation speed and torque parameters to the whole vehicle chassis platform;
the whole vehicle chassis platform receives the changed rotating speed and torque parameters and judges whether the speed change characteristic data of the speed change system is matched with the whole vehicle characteristic data according to the changed rotating speed and torque parameters;
if the judgment result is yes, the whole vehicle chassis platform outputs a calibration signal to the engine through the speed change system, and the engine receives the calibration signal and performs calibration at a calibration end;
if the result is negative, the whole vehicle chassis platform outputs the whole vehicle characteristic data to the engine through the speed change system, the engine receives the whole vehicle characteristic data and updates the rotating speed and torque parameters in the engine performance parameters according to the whole vehicle characteristic data, and the updated rotating speed and torque parameters are output to the speed change system, so that the cycle is performed until the result is positive.
Further, the engine performance parameters include rotational speed and torque parameters, power parameters, crankshaft pressure parameters, and fuel consumption parameters.
Further, the engine universal characteristic data includes engine external characteristic data and fuel consumption characteristic data.
Further, the engine external characteristic data includes rotational speed characteristic data, torque characteristic data, and power characteristic data.
Further, the whole vehicle characteristic data comprise whole vehicle windage characteristic data, tire rolling resistance data, whole vehicle chassis dynamic performance requirement data, running speed characteristic data and speed change characteristic data of a speed change system.
Further, the shift characteristics include dynamic performance, speed characteristics, and shift smoothness characteristics.
The on-line calibration method of the engine provided by the invention comprises the following steps: the engine outputs engine performance parameters to the performance test platform; the performance test platform receives the engine performance parameters, obtains the universal characteristic data of the engine according to the engine performance parameters, and outputs the universal characteristic data of the engine to the whole vehicle chassis platform; the whole vehicle chassis platform receives the universal characteristic data of the engine and judges whether the universal characteristic data of the engine is matched with the characteristic data of the whole vehicle; if the judgment result is yes, the whole vehicle chassis platform outputs a calibration signal to the engine through the performance test platform, and the engine receives the calibration signal and performs calibration at a calibration end; if the result is negative, the whole vehicle chassis platform outputs the whole vehicle characteristic data to the engine through the performance test platform, the engine receives the whole vehicle characteristic data and updates the engine performance parameters according to the whole vehicle characteristic data, and the updated engine performance parameters are output to the performance test platform, and the cycle is performed until the result is positive.
According to the on-line calibration system for the transmitter, provided by the invention, two-way data interaction can be performed between the engine, the performance test platform and the whole vehicle chassis platform to form a closed loop test, the engine calibration and test are linked with the whole vehicle chassis platform, and the data of external characteristics, rotating speed characteristics, universal characteristics and the like of the engine calibrated according to the method can be attached to the actual requirements of the whole vehicle, so that recalibration and adjustment according to the actual working condition of the whole vehicle are not required when the whole vehicle is carried, the final whole vehicle requirements can be effectively reflected through the calibration method, and the development period of the whole vehicle is shortened.
The invention also aims at providing an engine on-line calibration system which comprises an engine, a performance test platform and a whole vehicle chassis platform which are connected in sequence; wherein,
the engine is used for outputting engine performance parameters to the performance test platform;
the performance test platform is used for receiving the engine performance parameters, obtaining engine universal characteristic data according to the engine performance parameters, and outputting the engine universal characteristic data to the whole vehicle chassis platform;
the whole vehicle chassis platform is used for receiving the universal characteristic data of the engine and judging whether the universal characteristic data of the engine is matched with the whole vehicle characteristic data in the universal characteristic data of the engine;
if the result is yes, the whole vehicle chassis platform is further used for outputting a calibration signal to the engine through the performance test platform, and the engine is further used for receiving the calibration signal and calibrating at a calibration end;
if the result is negative, the whole vehicle chassis platform is further used for outputting the whole vehicle characteristic data to the engine through the performance test platform, the engine is further used for receiving the whole vehicle characteristic data, updating the engine performance parameters according to the whole vehicle characteristic data, and outputting the updated engine performance parameters to the performance test platform, so that the cycle is performed until the result is positive.
Further, the vehicle chassis further comprises a speed change system connected between the engine and the vehicle chassis platform;
the engine is used for outputting the rotating speed and torque parameters in the engine performance parameters to the speed change system;
the speed change system is used for receiving the rotating speed and torque parameters, converting the rotating speed and torque parameters according to the rotating speed and torque parameters to obtain changed rotating speed and torque parameters, and outputting the changed rotating speed and torque parameters to the whole vehicle chassis platform;
the whole vehicle chassis platform is used for receiving the changed rotating speed and torque parameters and judging whether the speed change characteristic data of the speed change system is matched with the whole vehicle characteristic data according to the changed rotating speed and torque parameters;
if the judgment result is yes, the whole vehicle chassis platform is further used for outputting a calibration signal to the engine through the speed change system, and the engine is further used for receiving the calibration signal and calibrating at a calibration end;
if the judging result is negative, the whole vehicle chassis platform is further used for outputting the whole vehicle characteristic data to the engine through the speed change system, the engine receives the whole vehicle characteristic data and updates the rotating speed and torque parameters in the engine performance parameters according to the whole vehicle characteristic data, and the updated rotating speed and torque parameters are output to the speed change system, so that the cycle is performed until the judging result is positive.
Compared with the prior art, the online calibration system of the engine has the advantages that the online calibration method of the engine is similar to the online calibration method of the engine, and the online calibration system of the engine is not repeated here.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an on-line calibration system for an engine provided by an embodiment of the present invention;
FIG. 2 is a flowchart I of an engine online calibration method according to an embodiment of the present invention;
fig. 3 is a second flowchart of an online calibration method of an engine according to an embodiment of the present invention.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
FIG. 1 is a schematic diagram of an on-line calibration system for an engine provided by an embodiment of the present invention; FIG. 2 is a flowchart I of an engine online calibration method according to an embodiment of the present invention; fig. 3 is a second flowchart of an online calibration method of an engine according to an embodiment of the present invention.
Referring to fig. 1 and 2, the engine online calibration method provided in this embodiment includes:
101. the engine outputs engine performance parameters to the performance test platform;
102. the performance test platform receives the engine performance parameters, obtains the universal characteristic data of the engine according to the engine performance parameters, and outputs the universal characteristic data of the engine to the whole vehicle chassis platform;
103. the whole vehicle chassis platform receives the universal characteristic data of the engine and judges whether the universal characteristic data of the engine is matched with the characteristic data of the whole vehicle;
104. if the judgment result is yes, the whole vehicle chassis platform outputs a calibration signal to the engine through the performance test platform, and the engine receives the calibration signal and performs calibration at a calibration end;
104', outputting the whole vehicle characteristic data to the engine through the performance test platform by the whole vehicle chassis platform if the judging result is negative, receiving the whole vehicle characteristic data by the engine, updating the engine performance parameters according to the whole vehicle characteristic data, and outputting the updated engine performance parameters to the performance test platform, and circulating until the judging result is positive.
Further, referring to fig. 1 and 3, the method further includes:
201. the engine outputs the rotating speed and torque parameters in the engine performance parameters to a speed changing system;
202. the speed change system receives the rotation speed and torque parameters, converts the rotation speed and torque parameters to obtain changed rotation speed and torque parameters, and outputs the changed rotation speed and torque parameters to the whole vehicle chassis platform;
203. the whole vehicle chassis platform receives the changed rotating speed and torque parameters and judges whether the speed change characteristic data of the speed change system is matched with the whole vehicle characteristic data according to the changed rotating speed and torque parameters;
204. if the judgment result is yes, the whole vehicle chassis platform outputs a calibration signal to the engine through the speed change system, and the engine receives the calibration signal and performs calibration at a calibration end;
204', if the judging result is no, the whole vehicle chassis platform outputs the whole vehicle characteristic data to the engine through the speed change system, the engine receives the whole vehicle characteristic data and updates the rotating speed and torque parameters in the engine performance parameters according to the whole vehicle characteristic data, and the updated rotating speed and torque parameters are output to the speed change system, so that the cycle is completed until the judging result is yes.
In this embodiment, the engine performance parameters include speed and torque parameters, power parameters, crankshaft pressure parameters, and fuel consumption parameters. The engine universal characteristic data comprises engine external characteristic data and fuel consumption characteristic data; the engine external characteristic data includes rotational speed characteristic data, torque characteristic data, and power characteristic data. The whole vehicle characteristic data comprise whole vehicle wind resistance characteristic data, tire rolling resistance data, whole vehicle chassis dynamic performance requirement data, running speed characteristic data and speed change characteristic data of a speed change system. The shift characteristics include dynamic performance, speed characteristics, and shift smoothness characteristics.
The performance test platform in this embodiment may be an engine test bench, which can monitor the rotation speed parameter and the torque parameter of the engine, and performance parameters such as the fuel consumption parameter, the power parameter, the crankshaft pressure parameter, etc. on line. The performance test platform obtains universal characteristic data of the engine according to engine performance parameters, the universal characteristic data of the engine are the processing and the collection of parameters such as engine rotating speed, torque, oil consumption, power, crankshaft pressure and the like, and the collection can be a universal characteristic MAP drawn through professional software or excel.
The whole vehicle chassis platform receives the set of the universal characteristic data of the engine and judges whether the set of the universal characteristic data of the engine is matched with the characteristic data of the whole vehicle, and the judging principle is that whether the output parameters of the engine can meet the requirement of the whole vehicle or not, if the set rotating speed requirement of the engine is 1000rpm, the whole vehicle chassis platform judges whether the output rotating speed of the engine reaches the requirement or not; if the output torque required by the engine set by the whole vehicle is 2600Nm on the premise of 1300rpm so as to meet the requirement of quick acceleration of the whole vehicle, the whole vehicle chassis platform judges whether the engine runs at 1300rpm or not and judges whether the output torque of the engine reaches 2600Nm or not.
It should be noted that, in the closed loop system, the two data paths are transmitted simultaneously and the two data paths are integrated end to end in parallel to form a closed loop, the output sources of the data transmission are all engines, the final terminals are all the chassis platform of the whole vehicle, the final basis of signal judgment is the requirement of the chassis platform of the whole vehicle, and the middle links of the two data paths are all refined verification links, so that the purpose that the calibration method can not cause defects to remain at the final terminals is achieved.
During calibration and testing, bidirectional data exchange is carried out between an engine and a performance testing platform, the engine outputs a rotating speed parameter, a torque parameter, a power parameter, a crankshaft pressure parameter and a fuel consumption parameter to the performance testing platform, the performance testing platform receives, records and processes the parameters to obtain engine external characteristic data, the engine external characteristic data comprises torque characteristic data, power characteristic data and fuel consumption characteristic data, the performance testing platform takes the characteristic data as output, the characteristic data is transmitted to a whole vehicle chassis platform for verification and check, and if a verification result is matched, a verification and check result is sent to a calibration end for engine calibration; the performance test platform and the whole chassis platform are subjected to bidirectional data exchange, the whole chassis platform integrates the whole wind resistance characteristic number, the tire rolling resistance data, the whole chassis dynamic requirement data, the running speed characteristic data, the speed characteristic data of the speed change system and the speed characteristic data of the speed change system, if the verification result is not matched, the characteristic data are used as output, the characteristic data are transmitted to the performance test platform, the performance test platform can transmit the requirement to an engine, the engine updates the output rotation speed parameter, the torque parameter, the power parameter, the crank shaft pressure parameter and the fuel consumption parameter to the performance test platform, and the performance test platform and the whole chassis platform process, compare and verify the updated engine parameters again to ensure that the actual requirement of the whole chassis platform is met.
The whole vehicle chassis platform carries out bidirectional data exchange with the speed changing system, the speed changing system outputs the changed rotating speed and torque parameters to the whole vehicle chassis platform, the rotating speed comprises the torque and the changed rotating speed of each gear, the whole vehicle chassis platform checks the dynamic property, the speed characteristic and the smoothness degree of speed changing, the dynamic mutation and the power output impact exist, and the verification information is fed back to the speed changing system and the performance testing platform; the speed changing system carries out bidirectional data exchange with the engine, receives torque parameters and rotation speed parameters output by the engine, carries out speed conversion and torque conversion, outputs to the chassis system of the whole vehicle for dynamic performance and speed characteristic verification and check, feeds information back to the engine, finally forms a closed loop, and carries out comprehensive calibration on the engine at a calibration end.
According to the on-line calibration system for the transmitter, provided by the embodiment of the invention, two-way data interaction can be performed between the engine, the performance test platform and the whole vehicle chassis platform to form a closed loop test, the engine calibration and test are linked with the whole vehicle chassis platform, and the data of external characteristics, rotating speed characteristics, universal characteristics and the like of the engine calibrated according to the method can be attached to the actual requirements of the whole vehicle, so that recalibration and adjustment according to the actual working condition of the whole vehicle are not required when the whole vehicle is carried, the final whole vehicle requirements can be effectively reflected through the calibration method, and the development period of the whole vehicle is shortened.
The invention also aims at providing an engine on-line calibration system which comprises an engine, a performance test platform and a whole vehicle chassis platform which are connected in sequence; the engine is used for outputting engine performance parameters to the performance test platform; the performance test platform is used for receiving engine performance parameters, obtaining engine universal characteristic data according to the engine performance parameters, and outputting the engine universal characteristic data to the whole vehicle chassis platform; the whole vehicle chassis platform is used for receiving the universal characteristic data of the engine and judging whether the universal characteristic data of the engine is matched with the whole vehicle characteristic data in the universal characteristic data of the engine; if the judgment result is yes, the whole vehicle chassis platform is also used for outputting a calibration signal to the engine through the performance test platform, and the engine is also used for receiving the calibration signal and calibrating at the calibration end; if the judging result is negative, the whole vehicle chassis platform is also used for outputting the whole vehicle characteristic data to the engine through the performance testing platform, the engine is also used for receiving the whole vehicle characteristic data and updating the engine performance parameters according to the whole vehicle characteristic data, and the updated engine performance parameters are output to the performance testing platform, so that the cycle is completed until the judging result is positive.
Further, the system also comprises a speed change system connected between the engine and the whole vehicle chassis platform; the engine is used for outputting the rotating speed and torque parameters in the engine performance parameters to the speed changing system; the speed change system is used for receiving the rotation speed and torque parameters, converting the rotation speed and torque parameters to obtain changed rotation speed and torque parameters, and outputting the changed rotation speed and torque parameters to the whole vehicle chassis platform; the whole vehicle chassis platform is used for receiving the changed rotating speed and torque parameters and judging whether the speed change characteristic data of the speed change system is matched with the whole vehicle characteristic data according to the changed rotating speed and torque parameters; if the judgment result is yes, the whole vehicle chassis platform is further used for outputting a calibration signal to the engine through the speed change system, and the engine is further used for receiving the calibration signal and calibrating at the calibration end; if the judging result is negative, the whole vehicle chassis platform is also used for outputting whole vehicle characteristic data to the engine through the speed change system, the engine receives the whole vehicle characteristic data and updates the rotating speed and torque parameters in the engine performance parameters according to the whole vehicle characteristic data, and the updated rotating speed and torque parameters are output to the speed change system, so that the cycle is performed until the judging result is positive.
Compared with the prior art, the engine online calibration system provided by the embodiment of the invention has the beneficial effects similar to those of the engine online calibration method provided by the embodiment of the invention, and the description is omitted here.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An on-line calibration method for an engine is characterized by comprising the following steps:
the engine outputs engine performance parameters to the performance test platform;
the performance test platform receives the engine performance parameters, obtains engine universal characteristic data according to the engine performance parameters, and outputs the engine universal characteristic data to the whole vehicle chassis platform;
the whole vehicle chassis platform receives the universal characteristic data of the engine and judges whether the universal characteristic data of the engine is matched with the whole vehicle characteristic data in the universal characteristic data of the engine;
if the judgment result is yes, the whole vehicle chassis platform outputs a calibration signal to the engine through the performance test platform, and the engine receives the calibration signal and performs calibration at a calibration end;
if the result is negative, the whole vehicle chassis platform outputs the whole vehicle characteristic data to the engine through the performance test platform, the engine receives the whole vehicle characteristic data and updates the engine performance parameters according to the whole vehicle characteristic data, and the updated engine performance parameters are output to the performance test platform, so that the cycle is circulated until the result is positive.
2. The on-line engine calibration method according to claim 1, wherein: further comprises:
the engine outputs the rotating speed and torque parameters in the engine performance parameters to a speed changing system;
the speed change system receives the rotation speed and torque parameters, converts the rotation speed and torque parameters to obtain changed rotation speed and torque parameters, and outputs the changed rotation speed and torque parameters to the whole vehicle chassis platform;
the whole vehicle chassis platform receives the changed rotating speed and torque parameters and judges whether the speed change characteristic data of the speed change system is matched with the whole vehicle characteristic data according to the changed rotating speed and torque parameters;
if the judgment result is yes, the whole vehicle chassis platform outputs a calibration signal to the engine through the speed change system, and the engine receives the calibration signal and performs calibration at a calibration end;
if the result is negative, the whole vehicle chassis platform outputs the whole vehicle characteristic data to the engine through the speed change system, the engine receives the whole vehicle characteristic data and updates the rotating speed and torque parameters in the engine performance parameters according to the whole vehicle characteristic data, and the updated rotating speed and torque parameters are output to the speed change system, so that the cycle is performed until the result is positive.
3. The on-line engine calibration method according to claim 1, wherein: the engine performance parameters include a rotational speed parameter, a torque parameter, a power parameter, a crankshaft pressure parameter, and a fuel consumption parameter.
4. The on-line engine calibration method according to claim 1, wherein: the engine universal characteristic data includes engine external characteristic data and fuel consumption characteristic data.
5. The on-line engine calibration method according to claim 4, wherein: the engine external characteristic data includes rotational speed characteristic data, torque characteristic data, and power characteristic data.
6. The on-line engine calibration method according to claim 2, characterized in that: the whole vehicle characteristic data comprise whole vehicle wind resistance characteristic data, tire rolling resistance data, whole vehicle chassis dynamic performance requirement data, running speed characteristic data and speed change characteristic data of a speed change system.
7. The on-line engine calibration method according to claim 2, characterized in that: the shift characteristics include dynamic performance, speed characteristics, and shift smoothness characteristics.
8. An on-line calibration system of an engine is characterized in that: the test system comprises an engine, a performance test platform and a whole vehicle chassis platform which are connected in sequence; wherein,
the engine is used for outputting engine performance parameters to the performance test platform;
the performance test platform is used for receiving the engine performance parameters, obtaining engine universal characteristic data according to the engine performance parameters, and outputting the engine universal characteristic data to the whole vehicle chassis platform;
the whole vehicle chassis platform is used for receiving the universal characteristic data of the engine and judging whether the universal characteristic data of the engine is matched with the whole vehicle characteristic data in the universal characteristic data of the engine;
if the result is yes, the whole vehicle chassis platform is further used for outputting a calibration signal to the engine through the performance test platform, and the engine is further used for receiving the calibration signal and calibrating at a calibration end;
if the result is negative, the whole vehicle chassis platform is further used for outputting the whole vehicle characteristic data to the engine through the performance test platform, the engine is further used for receiving the whole vehicle characteristic data, updating the engine performance parameters according to the whole vehicle characteristic data, and outputting the updated engine performance parameters to the performance test platform, so that the cycle is performed until the result is positive.
9. The on-line engine calibration system of claim 8, wherein: the speed change system is connected between the engine and the whole vehicle chassis platform;
the engine is used for outputting the rotating speed and torque parameters in the engine performance parameters to the speed change system;
the speed change system is used for receiving the rotating speed and torque parameters, converting the rotating speed and torque parameters according to the rotating speed and torque parameters to obtain changed rotating speed and torque parameters, and outputting the changed rotating speed and torque parameters to the whole vehicle chassis platform;
the whole vehicle chassis platform is used for receiving the changed rotating speed and torque parameters and judging whether the speed change characteristic data of the speed change system is matched with the whole vehicle characteristic data according to the changed rotating speed and torque parameters;
if the judgment result is yes, the whole vehicle chassis platform is further used for outputting a calibration signal to the engine through the speed change system, and the engine is further used for receiving the calibration signal and calibrating at a calibration end;
if the judging result is negative, the whole vehicle chassis platform is further used for outputting the whole vehicle characteristic data to the engine through the speed change system, the engine receives the whole vehicle characteristic data and updates the rotating speed and torque parameters in the engine performance parameters according to the whole vehicle characteristic data, and the updated rotating speed and torque parameters are output to the speed change system, so that the cycle is performed until the judging result is positive.
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| CN110926822B (en) * | 2019-12-04 | 2021-08-06 | 湖南道依茨动力有限公司 | Engine torque model calibration method and engine torque model calibration system |
| CN112946387A (en) * | 2021-01-29 | 2021-06-11 | 中国重汽集团济南动力有限公司 | Automatic calibration system for whole vehicle engine |
| CN113778046B (en) * | 2021-02-25 | 2023-09-01 | 京东鲲鹏(江苏)科技有限公司 | Calibration data and calibration model updating method and device of chassis of drivable equipment |
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