CN116892460A

CN116892460A - Engine torque adjusting method, device, equipment, storage medium and vehicle

Info

Publication number: CN116892460A
Application number: CN202310782505.7A
Authority: CN
Inventors: 王雄; 杨方子; 高柏濬; 冯杰
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-10-17

Abstract

The application relates to an engine torque adjusting method, an engine torque adjusting device, engine torque adjusting equipment, a storage medium and a vehicle, and relates to the technical field of hybrid power vehicle power. The method comprises the following steps: acquiring the current torque of a generator in a vehicle and the target torque of an engine in the vehicle; the current torque of the generator is an output torque in response to the target torque; the generator is mechanically connected with the engine; and determining a current deviation value of the vehicle; the current deviation value is a deviation value of the current torque and the target torque of the generator. Further, if the current deviation value of the vehicle is not within the first preset range, the torque of the engine is adjusted until the current deviation value of the vehicle is within the first preset range.

Description

Engine torque adjusting method, device, equipment, storage medium and vehicle

Technical Field

The application relates to the technical field of communication, in particular to the technical field of hybrid electric vehicle power, and specifically relates to an engine torque adjusting method, an engine torque adjusting device, engine torque adjusting equipment, an engine torque adjusting storage medium and a vehicle.

Background

With the development of hybrid vehicle technology, the requirement for the accuracy of the engine output torque is also increasing.

In the related art, since the engine is manufactured and assembled with a dispersion, there is a technical problem in that the actual output torque of the engine cannot be expected in the related art.

Disclosure of Invention

The application provides an engine torque adjusting method, an engine torque adjusting device, engine torque adjusting equipment, a storage medium and a vehicle, and aims to at least solve the technical problem that the actual output torque of an engine cannot reach the expected value in the related art. The technical scheme of the application is as follows:

according to a first aspect to which the present application relates, there is provided an engine torque adjustment method comprising: acquiring the current torque of a generator in a vehicle and the target torque of an engine in the vehicle; the current torque of the generator is an output torque in response to the target torque; the generator is mechanically connected with the engine; determining a current deviation value of the vehicle; the current deviation value is the deviation value of the current torque and the target torque of the generator; and if the current deviation value of the vehicle is not in the first preset range, adjusting the torque of the engine until the current deviation value of the vehicle is in the first preset range.

According to the technical means, the application can obtain the current torque of the generator in the vehicle and the target torque of the engine in the vehicle; and determining a current deviation value of the vehicle; and if the current deviation value of the vehicle is not in the first preset range, adjusting the torque of the engine until the current deviation value of the vehicle is in the first preset range. In this way, since the generator and the engine in the vehicle are mechanically connected, the torque of the engine and the torque of the generator are equal, and the current torque fed back by the generator is accurate relative to the current torque of the engine; and judging whether the current deviation value of the vehicle is in a first preset range in advance, and adjusting the torque of the engine under the condition that the current deviation value of the vehicle is out of the first preset range until the current deviation value of the vehicle is in the first preset range, so that the actual output torque of the engine can reach the expected value.

In one possible embodiment, before the current torque of the generator in the vehicle is obtained, the method further includes: determining a generator torque offset value; the generator torque deviation value is a deviation value of the torque of the generator in a preset time period; acquiring a current torque of a generator in a vehicle, comprising: and if the generator torque deviation value is in the second preset range, acquiring the current torque of the generator in the vehicle.

According to the technical means, the method can be used for determining the torque deviation value of the generator; and if the generator torque deviation value is in the second preset range, acquiring the current torque of the generator in the vehicle. In this way, the current torque of the generator is more accurate when the operating states of the engine and the generator are relatively stable, because the operating states of the engine and the generator are indicated to be relatively stable when the generator torque deviation value is within the second preset range.

In one possible embodiment, the adjusting the torque of the engine includes: the torque of the engine is adjusted based on the current deviation value of the vehicle and the current rotational speed of the generator.

According to the technical means, the torque of the engine can be adjusted by acquiring the current deviation value of the vehicle and the current rotating speed of the generator and according to the current deviation value of the vehicle and the current rotating speed of the generator. In this way, a method of adjusting the torque of the engine can be implemented based on the current deviation value of the vehicle and the current rotational speed of the generator.

In one possible embodiment, the adjusting the torque of the engine according to the current deviation value of the vehicle and the current rotation speed of the generator includes: performing a proportional adjustment operation to obtain a first current deviation value of the vehicle; the proportional adjustment operation comprises the steps of adjusting the torque of the engine in a proportional adjustment mode according to the current deviation value of the vehicle and the current rotating speed of the generator; the first current deviation value is a current deviation value of the updated vehicle based on the torque of the engine adjusted by the proportional adjustment operation; if the first current deviation value is larger than a first preset threshold value, repeating the proportion adjustment operation until the first current deviation value is smaller than the first preset threshold value; if the first current deviation value is smaller than a first preset threshold value, executing integral adjustment operation to obtain a second current deviation value of the vehicle; the integral adjustment operation comprises the steps of adjusting the torque of the engine in an integral adjustment mode according to the current deviation value of the vehicle; the second current deviation value is a current deviation value of the updated vehicle based on torque of the engine adjusted by integral adjustment operation; if the second current deviation value is out of the first preset range, repeating the integral adjustment operation until the second current deviation value is in the first preset range; and if the second current deviation value is within the first preset range, determining that the adjustment of the torque of the engine is completed.

According to the technical means, the first current deviation value of the vehicle can be obtained by executing the proportional adjustment operation; if the first current deviation value is larger than a first preset threshold value, repeating the proportion adjustment operation until the first current deviation value is smaller than the first preset threshold value; if the first current deviation value is smaller than a first preset threshold value, executing integral adjustment operation to obtain a second current deviation value of the vehicle; if the second current deviation value is out of the first preset range, repeating the integral adjustment operation until the second current deviation value is in the first preset range; and if the second current deviation value is within the first preset range, determining that the adjustment of the torque of the engine is completed. In this way, the proportional adjustment operation or the integral adjustment operation is judged according to the first preset threshold value, and the integral adjustment operation is judged to be performed or the adjustment of the torque of the engine is determined to be completed according to the second current deviation value, so that the torque of the engine after the adjustment is completed can be more approximate to the target torque.

In one possible embodiment, the performing a scaling operation includes: inquiring a first corresponding relation according to the current deviation value of the vehicle and the current rotating speed of the generator to obtain a target proportion adjusting torque, and adjusting the torque of the engine based on the target proportion adjusting torque; the first corresponding relation comprises corresponding relations of different current deviation values, different rotating speeds of the generator and different proportion adjusting torques.

According to the technical means, the first corresponding relation can be inquired according to the current deviation value of the vehicle and the current rotating speed of the generator to obtain the target proportion adjusting torque, and the torque of the engine is adjusted based on the target proportion adjusting torque. In this way, a method of adjusting engine torque by a proportional adjustment operation is achieved.

In one possible embodiment, the performing an integral adjustment operation includes: inquiring a second corresponding relation according to the current deviation value of the vehicle to obtain a target integral regulating torque, and regulating the torque of the engine based on the target integral regulating torque; the second correspondence includes correspondence of different current bias values with different integral adjustment torques.

According to the technical means, the second corresponding relation can be queried according to the current deviation value of the vehicle to obtain the target integral regulating torque, and the torque of the engine is regulated based on the target integral regulating torque. In this way, a method of adjusting engine torque by an integral adjustment operation is realized.

According to a second aspect of the present application, there is provided an engine torque adjusting device including an acquisition unit, a determination unit, and an adjusting unit; an acquisition unit configured to acquire a current torque of a generator in a vehicle and a target torque of an engine in the vehicle; the current torque of the generator is an output torque in response to the target torque; the generator is mechanically connected with the engine; a determination unit configured to determine a current deviation value of the vehicle; the current deviation value is the deviation value of the current torque and the target torque of the generator; and the adjusting unit is used for adjusting the torque of the engine if the current deviation value of the vehicle is not in the first preset range until the current deviation value of the vehicle is in the first preset range.

In a possible embodiment, the determining unit is further configured to determine a generator torque deviation value before acquiring a current torque of the generator in the vehicle; the generator torque deviation value is a deviation value of the torque of the generator in a preset time period; the obtaining unit is specifically configured to obtain a current torque of the generator in the vehicle if the generator torque deviation value is within a second preset range.

In a possible embodiment, the adjusting unit is specifically configured to adjust the torque of the engine according to a current deviation value of the vehicle and a current rotational speed of the generator.

In a possible embodiment, the above-mentioned adjusting unit is specifically configured to: performing a proportional adjustment operation to obtain a first current deviation value of the vehicle; the proportional adjustment operation comprises the steps of adjusting the torque of the engine in a proportional adjustment mode according to the current deviation value of the vehicle and the current rotating speed of the generator; the first current deviation value is a current deviation value of the updated vehicle based on the torque of the engine adjusted by the proportional adjustment operation; if the first current deviation value is larger than a first preset threshold value, repeating the proportion adjustment operation until the first current deviation value is smaller than the first preset threshold value; if the first current deviation value is smaller than a first preset threshold value, executing integral adjustment operation to obtain a second current deviation value of the vehicle; the integral adjustment operation comprises the steps of adjusting the torque of the engine in an integral adjustment mode according to the current deviation value of the vehicle; the second current deviation value is a current deviation value of the updated vehicle based on torque of the engine adjusted by integral adjustment operation; if the second current deviation value is out of the first preset range, repeating the integral adjustment operation until the second current deviation value is in the first preset range; and if the second current deviation value is within the first preset range, determining that the adjustment of the torque of the engine is completed.

In a possible embodiment, the above-mentioned adjusting unit is specifically configured to: inquiring a first corresponding relation according to the current deviation value of the vehicle and the current rotating speed of the generator to obtain a target proportion adjusting torque, and adjusting the torque of the engine based on the target proportion adjusting torque; the first corresponding relation comprises corresponding relations of different current deviation values, different rotating speeds of the generator and different proportion adjusting torques.

In a possible embodiment, the above-mentioned adjusting unit is specifically configured to: inquiring a second corresponding relation according to the current deviation value of the vehicle to obtain a target integral regulating torque, and regulating the torque of the engine based on the target integral regulating torque; the second correspondence includes correspondence of different current bias values with different integral adjustment torques.

According to a third aspect of the present application, there is provided an electronic apparatus comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute instructions to implement the method of the first aspect and any of its possible embodiments described above.

According to a fourth aspect of the present application there is provided a computer readable storage medium, which when executed by a processor of an electronic device, enables the electronic device to perform the method of the first aspect and any of its possible embodiments.

According to a fifth aspect of the present application there is provided a computer program product comprising computer instructions which, when run on an electronic device, cause the electronic device to perform the method of the first aspect and any of its possible embodiments.

According to a sixth aspect of the present application, there is provided a vehicle comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute instructions to cause the processor to perform the method of the first aspect and any one of its possible implementation forms.

It should be noted that, the technical effects caused by any implementation manner of the second aspect to the sixth aspect may refer to the technical effects caused by the corresponding implementation manner in the first aspect, which is not described herein.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Therefore, the technical characteristics of the application have the following beneficial effects:

(1) The current torque of the generator in the vehicle and the target torque of the engine in the vehicle can be obtained; and determining a current deviation value of the vehicle; and if the current deviation value of the vehicle is not in the first preset range, adjusting the torque of the engine until the current deviation value of the vehicle is in the first preset range. In this way, since the generator and the engine in the vehicle are mechanically connected, the torque of the engine and the torque of the generator are equal, and the current torque fed back by the generator is accurate relative to the current torque of the engine; and judging whether the current deviation value of the vehicle is in a first preset range in advance, and adjusting the torque of the engine under the condition that the current deviation value of the vehicle is out of the first preset range until the current deviation value of the vehicle is in the first preset range, so that the actual output torque of the engine can reach the expected value.

(2) The generator torque bias value may be determined; and if the generator torque deviation value is in the second preset range, acquiring the current torque of the generator in the vehicle. In this way, the current torque of the generator is more accurate when the operating states of the engine and the generator are relatively stable, because the operating states of the engine and the generator are indicated to be relatively stable when the generator torque deviation value is within the second preset range.

(3) The torque of the engine may be adjusted by obtaining a current deviation value of the vehicle and a current rotational speed of the generator, and based on the current deviation value of the vehicle and the current rotational speed of the generator. In this way, a method of adjusting the torque of the engine can be implemented based on the current deviation value of the vehicle and the current rotational speed of the generator.

(4) Obtaining a first current deviation value of the vehicle by performing a proportional adjustment operation; if the first current deviation value is larger than a first preset threshold value, repeating the proportion adjustment operation until the first current deviation value is smaller than the first preset threshold value; if the first current deviation value is smaller than a first preset threshold value, executing integral adjustment operation to obtain a second current deviation value of the vehicle; if the second current deviation value is out of the first preset range, repeating the integral adjustment operation until the second current deviation value is in the first preset range; and if the second current deviation value is within the first preset range, determining that the adjustment of the torque of the engine is completed. In this way, the proportional adjustment operation or the integral adjustment operation is judged according to the first preset threshold value, and the integral adjustment operation is judged to be performed or the adjustment of the torque of the engine is determined to be completed according to the second current deviation value, so that the torque of the engine after the adjustment is completed can be more approximate to the target torque.

(5) The first corresponding relation can be queried according to the current deviation value of the vehicle and the current rotating speed of the generator to obtain a target proportion adjusting torque, and the torque of the engine is adjusted based on the target proportion adjusting torque. In this way, a method of adjusting engine torque by a proportional adjustment operation is achieved.

(6) The second correspondence may be queried based on a current deviation value of the vehicle to obtain a target integral adjustment torque, and the torque of the engine may be adjusted based on the target integral adjustment torque. In this way, a method of adjusting engine torque by an integral adjustment operation is realized.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application and do not constitute a undue limitation on the application.

FIG. 1 is a flowchart illustrating a method of engine torque adjustment, according to an exemplary embodiment;

FIG. 2 is a schematic diagram illustrating an engine torque adjustment method according to an exemplary embodiment;

FIG. 3 is a schematic diagram illustrating yet another engine torque adjustment method according to an exemplary embodiment;

FIG. 4 is a flowchart illustrating yet another engine torque adjustment method according to an exemplary embodiment;

FIG. 5 is a schematic diagram illustrating yet another engine torque adjustment method according to an exemplary embodiment;

FIG. 6 is a flowchart illustrating yet another engine torque adjustment method according to an exemplary embodiment;

FIG. 7 is a flowchart illustrating yet another engine torque adjustment method according to an exemplary embodiment;

FIG. 8 is a schematic diagram illustrating yet another engine torque adjustment method according to an exemplary embodiment;

FIG. 9 is a schematic diagram illustrating yet another engine torque adjustment method according to an exemplary embodiment;

FIG. 10 is a schematic diagram illustrating yet another engine torque adjustment method according to an exemplary embodiment;

FIG. 11 is a flowchart illustrating yet another engine torque adjustment method according to an exemplary embodiment;

FIG. 12 is a block diagram illustrating an engine torque adjustment device according to an exemplary embodiment;

fig. 13 is a block diagram of an electronic device, according to an example embodiment.

Detailed Description

In order to enable a person skilled in the art to better understand the technical solutions of the present application, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.

For ease of understanding, the engine torque adjustment method provided by the present application is specifically described below with reference to the accompanying drawings.

FIG. 1 is a flowchart illustrating an engine torque adjustment method, as shown in FIG. 1, according to an exemplary embodiment, including the steps of:

s101, the electronic equipment acquires the current torque of a generator in the vehicle and the target torque of an engine in the vehicle.

Wherein the current torque of the generator is an output torque in response to the target torque; the generator is mechanically coupled to the engine.

As one possible implementation, the electronic device obtains the current torque of the generator from the feedback signal sent by the generator control unit, and obtains the target torque of the engine from the signal sent by the whole vehicle control unit to the engine control unit.

The P13 configuration and the range-extended configuration hybrid vehicle, wherein the engine is mechanically connected with the generator.

As shown in fig. 2, in the actual application process, the whole vehicle control unit sends the target rotation speed of the generator to the generator control unit through the communication of the controller area network bus, and sends the target torque of the engine in the vehicle to the engine control unit through the communication of the controller area network bus; the whole vehicle control unit receives the current torque of the generator and the current rotating speed of the generator sent by the generator control unit, and receives the current rotating speed of the engine and the current torque of the engine sent by the engine control unit.

S102, the electronic equipment determines the current deviation value of the vehicle.

The current deviation value is a deviation value of the current torque and the target torque of the generator.

As one possible implementation, the electronic device calculates a difference between the current torque of the generator and the target torque, and determines the difference as a current deviation value of the vehicle.

As shown in fig. 3, in the actual application process, the electronic device performs low-pass filtering processing on the current torque of the generator, where the filtering time is a first filtering time; and the electronic equipment performs low-pass filtering processing on the target torque, wherein the filtering time is the second filtering time.

The electronic device calculates a difference between the current torque of the generator and the target torque, and determines the difference as a current deviation value of the vehicle.

It can be understood that the electronic device performs low-pass filtering processing on the high-frequency part in the current torque and the target torque of the generator according to the preset first filtering time and second filtering time. In this way, disturbances in the current torque and the target torque of the generator can be reduced, and the accuracy of the deviation value of the vehicle can be improved.

S103, the electronic equipment judges whether the current deviation value of the vehicle is in a first preset range.

And S104, if the current deviation value of the vehicle is not in the first preset range, the electronic equipment adjusts the torque of the engine until the current deviation value of the vehicle is in the first preset range.

As a possible implementation manner, if the current deviation value of the vehicle is not within the first preset range, the electronic device adjusts the torque of the engine by changing the air input of the engine according to the current deviation value of the vehicle and the current rotation speed of the generator until the current deviation value of the vehicle is within the first preset range.

As another possible implementation manner, if the current deviation value of the vehicle is not within the first preset range, the electronic device adjusts the torque of the engine by changing the ignition time interval of the engine according to the current deviation value of the vehicle and the current rotation speed of the generator until the current deviation value of the vehicle is within the first preset range.

It can be appreciated that the technical scheme provided by the embodiment of the application is that the current torque of the generator in the vehicle and the target torque of the engine in the vehicle are obtained; and determining a current deviation value of the vehicle; and if the current deviation value of the vehicle is not in the first preset range, adjusting the torque of the engine until the current deviation value of the vehicle is in the first preset range. In this way, since the generator and the engine in the vehicle are mechanically connected, the torque of the engine and the torque of the generator are equal, and the current torque fed back by the generator is accurate relative to the current torque of the engine; and judging whether the current deviation value of the vehicle is in a first preset range in advance, and adjusting the torque of the engine under the condition that the current deviation value of the vehicle is out of the first preset range until the current deviation value of the vehicle is in the first preset range, so that the actual output torque of the engine can reach the expected value.

In some embodiments, in order to obtain the current torque of the generator in the vehicle, as shown in fig. 4, the engine torque adjustment method provided by the embodiment of the application further includes the following steps:

s201, the electronic equipment determines a generator torque deviation value.

The generator torque deviation value is a deviation value of the torque of the generator in a preset time period.

As a possible implementation, the electronic device obtains the current torque value of the generator from the feedback signal of the generator, and obtains the current torque value of the generator before the preset time period from the feedback signal of the generator. Further, the electronic device calculates a difference between the two current torque values, and determines the difference as a generator torque deviation value.

S202, the electronic equipment judges whether the torque deviation value of the generator is in a second preset range.

And S203, if the torque deviation value of the generator is within a second preset range, the electronic equipment acquires the current torque of the generator in the vehicle.

As shown in fig. 5, in the actual application process, the electronic device obtains the current torque value of the generator before the preset number of calculation periods a, and obtains the current torque value of the generator in the current calculation period.

The electronic equipment calculates the generator torque deviation value in a preset number of calculation periods a, performs low-pass filtering processing on the generator torque deviation value, and performs absolute value processing on the generator torque deviation value.

The electronic device judges whether the torque deviation value of the generator is smaller than or equal to a preset deviation threshold value.

If the generator torque deviation value is smaller than or equal to a preset deviation threshold value, the electronic equipment sets an engine torque stability mark after a preset delay time, and obtains the current torque of the generator in the vehicle.

And if the torque deviation value of the generator is larger than the preset deviation threshold value, resetting the engine stability mark by the electronic equipment.

And if the engine stability identification is set, the electronic equipment acquires the current torque value of the generator in the current calculation period.

The engine torque stability identification set is used for indicating that the engine torque is stable; the engine stability flag reset is used to indicate that the engine torque is unstable.

The preset number is, for example, 10.

It can be appreciated that the technical scheme provided by the embodiment of the application is that the torque deviation value of the generator is determined; and if the generator torque deviation value is in the second preset range, acquiring the current torque of the generator in the vehicle. In this way, the current torque of the generator is more accurate when the operating states of the engine and the generator are relatively stable, because the operating states of the engine and the generator are indicated to be relatively stable when the generator torque deviation value is within the second preset range.

In some embodiments, in order to adjust the torque of the engine, as shown in fig. 6, the method for adjusting the torque of the engine according to the embodiment of the present application includes the following steps:

s301, the electronic equipment acquires a current deviation value of the vehicle and a current rotating speed of the generator.

S302, the electronic equipment adjusts the torque of the engine according to the current deviation value of the vehicle and the current rotating speed of the generator.

As one possible implementation, the electronic device performs a scaling operation to obtain a first current deviation value of the vehicle.

And if the first current deviation value is larger than a first preset threshold value, the electronic equipment repeatedly executes the proportion adjustment operation until the first current deviation value is smaller than the first preset threshold value.

And if the first current deviation value is smaller than the first preset threshold value, the electronic equipment executes integral adjustment operation to obtain a second current deviation value of the vehicle.

And if the second current deviation value is out of the first preset range, the electronic equipment repeatedly executes the integral adjustment operation until the second current deviation value is in the first preset range.

If the second current deviation value is within the first preset range, the electronic equipment determines that the adjustment of the torque of the engine is completed.

The proportional adjustment operation includes adjusting the torque of the engine in a proportional adjustment manner according to the current deviation value of the vehicle and the current rotation speed of the generator, wherein the first current deviation value is the current deviation value of the updated vehicle based on the torque of the engine adjusted by the proportional adjustment operation; the integral adjustment operation comprises the steps of adjusting the torque of the engine in an integral adjustment mode according to the current deviation value of the vehicle; the second current deviation value is a current deviation value of the updated vehicle based on the torque of the engine adjusted by the integral adjustment operation.

It can be appreciated that according to the technical scheme provided by the embodiment of the application, the torque of the engine is adjusted according to the current deviation value of the vehicle and the current rotation speed of the generator by acquiring the current deviation value of the vehicle and the current rotation speed of the generator. In this way, a method of adjusting the torque of the engine can be implemented based on the current deviation value of the vehicle and the current rotational speed of the generator.

In some embodiments, in order to make the current deviation value of the vehicle be within the first preset range, as shown in fig. 7, in the embodiment of the present application, the torque of the engine is adjusted according to the current deviation value of the vehicle and the current rotation speed of the generator, including the following steps:

S401, the electronic equipment executes a proportion adjustment operation to obtain a first current deviation value of the vehicle.

The proportional adjustment operation comprises the steps of adjusting the torque of the engine in a proportional adjustment mode according to the current deviation value of the vehicle and the current rotating speed of the generator; the first current deviation value is a current deviation value of the updated vehicle based on the torque of the engine adjusted by the proportional adjustment operation.

As a possible implementation manner, as shown in fig. 8, the electronic device queries the first corresponding relationship according to the current deviation value of the vehicle and the current rotation speed of the generator, obtains a target proportion adjustment torque, and adjusts the torque of the engine based on the target proportion adjustment torque.

The electronic device calculates an updated deviation value of the torque of the engine and determines the deviation value as a first current deviation value.

It should be noted that the first correspondence includes correspondence between different current deviation values, different rotation speeds of the generator, and different proportional adjustment torques.

S402, the electronic device judges whether the first current deviation value is smaller than a first preset threshold value.

S403, if the first current deviation value is greater than a first preset threshold, the electronic device repeatedly executes the proportion adjustment operation until the first current deviation value is less than the first preset threshold.

S404, if the first current deviation value is smaller than a first preset threshold value, the electronic equipment executes integral adjustment operation to obtain a second current deviation value of the vehicle.

The integral adjustment operation comprises the steps of adjusting the torque of the engine in an integral adjustment mode according to the current deviation value of the vehicle; the second current deviation value is a current deviation value of the updated vehicle based on the torque of the engine adjusted by the integral adjustment operation.

As a possible implementation manner, when the first current deviation value is smaller than the first preset threshold value, the electronic device queries the second corresponding relation according to the current deviation value of the vehicle to obtain a target integral adjustment torque, and adjusts the torque of the engine based on the target integral adjustment torque.

The electronic device calculates an updated deviation value of the torque of the engine and determines the deviation value as a second current deviation value.

It should be noted that the second correspondence includes correspondence between different deviation values and different integral adjustment torques.

In the actual application process, as shown in fig. 9, if the absolute value of the first current deviation value is smaller than the first preset threshold, the electronic device queries the target integral adjustment torque from the second corresponding relationship according to the current deviation value of the vehicle.

And the electronic equipment inquires the upper limit and the lower limit of the integral regulating torque corresponding to the current deviation value of the vehicle from a preset third corresponding relation according to the current deviation value of the vehicle.

If the target integral adjustment torque is greater than the lower limit of the integral adjustment torque and less than the upper limit of the integral adjustment torque, the electronic device adjusts the torque of the engine based on the target integral adjustment torque.

If the target integral regulating torque is larger than the upper limit of the integral regulating torque, the electronic equipment regulates the torque of the engine according to the upper limit of the integral regulating torque.

If the target integral regulating torque is smaller than the lower limit of the integral regulating torque, the electronic equipment regulates the torque of the engine according to the lower limit of the integral regulating torque.

S405, the electronic device judges whether the second deviation value is within a first preset range.

S406, if the second current deviation value is out of the first preset range, the electronic device repeatedly executes the integral adjustment operation until the second current deviation value is in the first preset range.

S407, if the second current deviation value is in the first preset range, the electronic equipment determines that the adjustment of the torque of the engine is completed.

In the actual application process, as shown in fig. 10, if the second deviation value is within the first preset range, the engine torque stable indicator resets, and at this time, the electronic device determines that the adjustment of the engine torque is completed.

The target torque of the engine after the completion of the adjustment is equal to the sum of the torque of the engine before the adjustment, the at least one target integrated adjustment torque and the at least one target proportional adjustment torque.

It can be appreciated that, according to the technical scheme provided by the embodiment of the application, the first current deviation value of the vehicle is obtained by executing the proportional adjustment operation; if the first current deviation value is larger than a first preset threshold value, repeating the proportion adjustment operation until the first current deviation value is smaller than the first preset threshold value; if the first current deviation value is smaller than a first preset threshold value, executing integral adjustment operation to obtain a second current deviation value of the vehicle; if the second current deviation value is out of the first preset range, repeating the integral adjustment operation until the second current deviation value is in the first preset range; and if the second current deviation value is within the first preset range, determining that the adjustment of the torque of the engine is completed. In this way, the proportional adjustment operation or the integral adjustment operation is judged according to the first preset threshold value, and the integral adjustment operation is judged to be performed or the adjustment of the torque of the engine is determined to be completed according to the second current deviation value, so that the torque of the engine after the adjustment is completed can be more approximate to the target torque.

In some embodiments, as shown in fig. 11, in the practical application process, the electronic device adjusts the torque of the engine according to the torque adjustment identifier, and determining the torque adjustment identifier includes the following steps:

s501, the electronic equipment determines the current deviation value of the vehicle.

S502, the electronic equipment acquires a control mode of the engine.

The control modes of the engine comprise a torque control mode and a rotating speed control mode.

As a possible implementation, the electronic device obtains the control mode of the engine from a feedback signal sent by the engine control unit.

S503, the electronic equipment acquires the engine stability identification.

S504, the electronic equipment judges whether the current deviation value of the vehicle is in a preset deviation range.

The preset deviation range is from a first deviation value to a second deviation value; the second deviation value is greater than the first deviation value; the hysteresis quantity of the first deviation value is a preset hysteresis quantity.

S505, if the engine stability identification is set, the control mode of the engine is a torque control mode, and the current deviation value of the vehicle is within a preset deviation range, the electronic equipment determines that the torque adjustment identification is set.

If the torque adjustment mark is set, the electronic device adjusts the torque of the engine.

S506, if the engine stability indicator is reset, and/or the control mode of the engine is a rotating speed control mode, and/or the current deviation value of the vehicle is out of a preset deviation range, the electronic equipment determines that the torque adjustment indicator is reset.

The foregoing description of the solution provided by the embodiments of the present application has been mainly presented in terms of a method. To achieve the above functions, the engine torque adjusting device or the electronic apparatus includes a hardware structure and/or a software module that performs the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

According to the method, the engine torque adjusting device or the electronic device can be divided into functional modules, for example, the engine torque adjusting device or the electronic device can comprise each functional module corresponding to each functional division, or two or more functions can be integrated into one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.

FIG. 12 is a block diagram illustrating an engine torque adjustment device according to an exemplary embodiment. Referring to fig. 12, the engine torque adjusting device 600 includes: an acquisition unit 601, a determination unit 602, and an adjustment unit 603.

An acquisition unit 601 for acquiring a current torque of a generator in a vehicle and a target torque of an engine in the vehicle; the current torque of the generator is an output torque in response to the target torque; the generator is mechanically coupled to the engine.

A determining unit 602 for determining a current deviation value of the vehicle; the current deviation value is a deviation value of the current torque and the target torque of the generator.

And the adjusting unit 603 is configured to adjust the torque of the engine if the current deviation value of the vehicle is not within the first preset range, until the current deviation value of the vehicle is within the first preset range.

Optionally, as shown in fig. 12, the determining unit 602 provided by the embodiment of the present application is further configured to determine a generator torque deviation value before acquiring the current torque of the generator in the vehicle; the generator torque deviation value is a deviation value of the torque of the generator in a preset time period.

The obtaining unit 601 is specifically configured to obtain the current torque of the generator in the vehicle if the generator torque deviation value is within the second preset range.

Optionally, as shown in fig. 12, the adjusting unit 603 provided in the embodiment of the present application is specifically configured to adjust the torque of the engine according to the current deviation value of the vehicle and the current rotation speed of the generator.

Optionally, as shown in fig. 12, the adjusting unit 603 provided in the embodiment of the present application is specifically configured to: performing a proportional adjustment operation to obtain a first current deviation value of the vehicle; the proportional adjustment operation comprises the steps of adjusting the torque of the engine in a proportional adjustment mode according to the current deviation value of the vehicle and the current rotating speed of the generator; the first current deviation value is a current deviation value of the updated vehicle based on the torque of the engine adjusted by the proportional adjustment operation.

And if the first current deviation value is larger than a first preset threshold value, repeating the proportion adjustment operation until the first current deviation value is smaller than the first preset threshold value.

If the first current deviation value is smaller than a first preset threshold value, executing integral adjustment operation to obtain a second current deviation value of the vehicle; the integral adjustment operation comprises the steps of adjusting the torque of the engine in an integral adjustment mode according to the current deviation value of the vehicle; the second current deviation value is a current deviation value of the updated vehicle based on the torque of the engine adjusted by the integral adjustment operation.

And if the second current deviation value is out of the first preset range, repeating the integral adjustment operation until the second current deviation value is in the first preset range.

And if the second current deviation value is within the first preset range, determining that the adjustment of the torque of the engine is completed.

Optionally, as shown in fig. 12, the adjusting unit 603 provided in the embodiment of the present application is specifically configured to: inquiring a first corresponding relation according to the current deviation value of the vehicle and the current rotating speed of the generator to obtain a target proportion adjusting torque, and adjusting the torque of the engine based on the target proportion adjusting torque; the first corresponding relation comprises corresponding relations of different current deviation values, different rotating speeds of the generator and different proportion adjusting torques.

Optionally, as shown in fig. 12, the adjusting unit 603 provided in the embodiment of the present application is specifically configured to: inquiring a second corresponding relation according to the current deviation value of the vehicle to obtain a target integral regulating torque, and regulating the torque of the engine based on the target integral regulating torque; the second correspondence includes correspondence of different current bias values with different integral adjustment torques.

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

Fig. 13 is a block diagram of an electronic device, according to an example embodiment. As shown in fig. 13, electronic device 700 includes, but is not limited to: a processor 701 and a memory 702.

The memory 702 is configured to store executable instructions of the processor 701. It will be appreciated that the processor 701 described above is configured to execute instructions to implement the engine torque adjustment method of the above embodiment.

It should be noted that the electronic device structure shown in fig. 13 is not limited to the electronic device, and the electronic device may include more or less components than those shown in fig. 13, or may combine some components, or may have different arrangements of components, as will be appreciated by those skilled in the art.

The processor 701 is a control center of the electronic device, connects various parts of the entire electronic device using various interfaces and lines, and performs various functions of the electronic device and processes data by running or executing software programs and/or modules stored in the memory 702, and calling data stored in the memory 702, thereby performing overall monitoring of the electronic device. The processor 701 may include one or more processing units. Alternatively, the processor 701 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 701.

The memory 702 may be used to store software programs as well as various data. The memory 702 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, application programs (such as a determination unit, a processing unit, etc.) required for at least one functional module, and the like. In addition, the memory 702 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

In an exemplary embodiment, a computer readable storage medium is also provided, such as a memory 702, comprising instructions executable by the processor 701 of the electronic device 700 to implement the engine torque adjustment method of the above embodiments.

In actual implementation, the functions of the acquisition unit 601, the determination unit 602, and the adjustment unit 603 in fig. 12 may be implemented by the processor 701 in fig. 13 calling a computer program stored in the memory 702. For specific execution, reference may be made to the description of the engine torque adjustment method in the above embodiment, and details thereof will not be repeated here.

Alternatively, the computer readable storage medium may be a non-transitory computer readable storage medium, for example, a read-only memory (ROM), a random access memory (random access memory, RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

In an exemplary embodiment, embodiments of the application also provide a computer program product comprising one or more instructions executable by the processor 701 of an electronic device to perform the engine torque adjustment method of the above-described embodiments.

It should be noted that, when the instructions in the computer readable storage medium or one or more instructions in the computer program product are executed by the processor of the electronic device, the respective processes of the above-mentioned engine torque adjustment method embodiment are implemented, and the same technical effects as those of the above-mentioned engine torque adjustment method can be achieved, so that repetition is avoided, and no further description is provided herein.

From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be performed by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules, so as to perform all the classification parts or part of the functions described above.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of modules or units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another apparatus, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and the parts shown as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed in a plurality of different places. The purpose of the embodiment scheme can be achieved by selecting part or all of the classification part units according to actual needs.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application, or the portion contributing to the prior art or the whole classification portion or portion of the technical solution, may be embodied in the form of a software product stored in a storage medium, where the software product includes several instructions to cause a device (may be a single-chip microcomputer, a chip or the like) or a processor (processor) to execute the whole classification portion or part of the steps of the method of the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

The present application is not limited to the above embodiments, and any changes or substitutions within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims

1. A method of engine torque adjustment, the method comprising:

acquiring the current torque of a generator in a vehicle and the target torque of an engine in the vehicle; the current torque of the generator is an output torque responsive to the target torque; the generator is mechanically connected with the engine;

determining a current deviation value of the vehicle; the current deviation value is a deviation value of the current torque of the generator and the target torque;

and if the current deviation value of the vehicle is not in the first preset range, adjusting the torque of the engine until the current deviation value of the vehicle is in the first preset range.

2. The method of claim 1, wherein prior to said obtaining a current torque of a generator in a vehicle, the method further comprises:

Determining a generator torque offset value; the generator torque deviation value is a deviation value of the torque of the generator in a preset time period;

the obtaining the current torque of the generator in the vehicle comprises the following steps:

and if the generator torque deviation value is in a second preset range, acquiring the current torque of the generator in the vehicle.

3. The method of claim 1 or 2, wherein adjusting the torque of the engine comprises:

and adjusting the torque of the engine according to the current deviation value of the vehicle and the current rotating speed of the generator.

4. A method according to claim 3, wherein said adjusting the torque of the engine in accordance with the current deviation value of the vehicle and the current rotational speed of the generator comprises:

performing a proportional adjustment operation to obtain a first current deviation value of the vehicle; the proportional adjustment operation comprises the steps of adjusting the torque of the engine in a proportional adjustment mode according to the current deviation value of the vehicle and the current rotating speed of the generator; the first current deviation value is a current deviation value of the vehicle after updating, and the torque of the engine is adjusted based on the proportional adjustment operation;

If the first current deviation value is larger than a first preset threshold value, repeating the proportion adjustment operation until the first current deviation value is smaller than the first preset threshold value;

if the first current deviation value is smaller than the first preset threshold value, executing integral adjustment operation to obtain a second current deviation value of the vehicle; the integral adjustment operation comprises the steps of adjusting the torque of the engine in an integral adjustment mode according to the current deviation value of the vehicle; the second current deviation value is a current deviation value of the vehicle after updating, and the torque of the engine is adjusted based on the integral adjustment operation;

if the second current deviation value is located outside the first preset range, repeating the integral adjustment operation until the second current deviation value is located in the first preset range;

and if the second current deviation value is in the first preset range, determining that the torque of the engine is adjusted.

5. The method of claim 4, wherein the performing a scaling operation comprises:

inquiring a first corresponding relation according to the current deviation value of the vehicle and the current rotating speed of the generator to obtain a target proportion adjusting torque, and adjusting the torque of the engine based on the target proportion adjusting torque; the first corresponding relation comprises corresponding relations of different current deviation values, different rotating speeds of the generator and different proportion adjusting torques.

6. The method of claim 4, wherein the performing an integral adjustment operation comprises:

inquiring a second corresponding relation according to the current deviation value of the vehicle to obtain a target integral regulating torque, and regulating the torque of the engine based on the target integral regulating torque; the second correspondence includes correspondence of different current bias values and different integral adjustment torques.

7. An engine torque adjustment device, the device comprising: the device comprises an acquisition unit, a determination unit and an adjustment unit;

the acquisition unit is used for acquiring the current torque of a generator in a vehicle and the target torque of an engine in the vehicle; the current torque of the generator is an output torque responsive to the target torque; the generator is mechanically connected with the engine;

the determining unit is used for determining a current deviation value of the vehicle; the current deviation value is a deviation value of the current torque of the generator and the target torque;

and the adjusting unit is used for adjusting the torque of the engine if the current deviation value of the vehicle is not in a first preset range until the current deviation value of the vehicle is in the first preset range.

8. An electronic device, comprising:

a processor;

a memory for storing the processor-executable instructions;

wherein the processor is configured to execute the instructions to implement the method of any one of claims 1 to 6.

9. A computer readable storage medium, characterized in that, when computer-executable instructions stored in the computer readable storage medium are executed by a processor of an electronic device, the electronic device is capable of performing the method of any one of claims 1 to 6.

10. A vehicle, characterized by comprising: a processor;

a memory for storing the processor-executable instructions;