CN115320570B

CN115320570B - Method and device for controlling P gear output of hybrid electric vehicle, vehicle and storage medium

Info

Publication number: CN115320570B
Application number: CN202210946573.8A
Authority: CN
Inventors: 秦伟; 孔丹丹; 郑海生; 钟振远; 朱永明; 刘学武
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2023-09-29
Anticipated expiration: 2042-08-08
Also published as: CN115320570A

Abstract

The embodiment of the application discloses a method and a device for controlling a hybrid electric vehicle to output a P gear, the hybrid electric vehicle and a computer readable storage medium. The method for controlling the P gear of the hybrid electric vehicle comprises the following steps: when the motor is determined to apply the offset backlash torque, performing torque removing processing on the offset backlash torque applied by the motor; and after the torque is removed, controlling the P-gear lock ratchet to carry out the gear removing operation so as to execute the P gear based on the gear removing operation. The P-gear output control method for the hybrid electric vehicle disclosed by the application avoids the problem of vehicle setbacks.

Description

Method and device for controlling P gear output of hybrid electric vehicle, vehicle and storage medium

Technical Field

The application relates to the technical field of automobiles, in particular to a method and a device for controlling a P gear of a hybrid electric vehicle, the hybrid electric vehicle and a computer readable storage medium.

Background

In the actual development process of the hybrid electric vehicle, various tooth knocking and abnormal sound exist due to the complex working conditions, control strategies and other factors, so that the problems of vehicle setback and the like are caused.

Disclosure of Invention

In order to solve the technical problems, the embodiment of the application provides a method and a device for controlling a P gear of a hybrid electric vehicle, the hybrid electric vehicle and a computer readable storage medium.

According to an aspect of the embodiment of the application, there is provided a P-gear out control method for a hybrid electric vehicle, the P-gear out control method for the hybrid electric vehicle comprising: when the motor is determined to apply the offset backlash torque, performing torque removing processing on the offset backlash torque applied by the motor; and after the torque is removed, controlling the P-gear lock ratchet to carry out the gear removing operation so as to execute the P gear based on the gear removing operation.

In an exemplary embodiment, the method for controlling the P-gear output of the hybrid electric vehicle further includes: judging whether the motor applies offset tooth torque or not in response to the P-gear out operation of the target object; and if the motor does not apply the offset backlash torque, controlling the P-gear locking ratchet wheel to carry out the gear withdrawing operation so as to execute the P gear based on the gear withdrawing operation.

In an exemplary embodiment, before the step of determining whether the motor applies the offset backlash torque, the method for controlling the P-out of the hybrid vehicle further includes: acquiring the current position of a gear level; calculating a distance difference value between the current position and the initial position of the gear level; and if the distance difference value is greater than or equal to a preset threshold value, determining that the target object performs P-gear outputting operation.

In an exemplary embodiment, the step of executing the P gear based on the tooth-stripping operation includes: determining a ratchet wheel position after tooth withdrawal operation, wherein the ratchet wheel position comprises a lost communication position, a ratchet wheel locking position, a position of a ratchet wheel when tooth withdrawal occurs, a position of a ratchet wheel when tooth feeding occurs and a ratchet wheel tooth withdrawal completion position; and executing the P gear based on the ratchet position.

In an exemplary embodiment, the step of executing the P-gear based on the ratchet position includes: and executing the P gear when the ratchet wheel position is at the gear withdrawal completion position.

In an exemplary embodiment, before the step of executing the P-gear step if the ratchet position is in the tooth withdrawal completion position, the method further includes: and if the ratchet wheel position is at one of the lost communication position, the ratchet wheel locking position, the position of the ratchet wheel when the ratchet wheel is retreated and the position of the ratchet wheel when the ratchet wheel is advanced, the P gear is not executed.

According to one aspect of the embodiment of the application, a P-gear output control device of a hybrid electric vehicle is provided, the device comprises a hybrid control module, a motor control module, a gear shifting execution module and a conversion gateway module, the hybrid control module is electrically connected with the motor control module, and the hybrid control module is electrically connected with the gear shifting execution module through the conversion gateway module; the hybrid power control module is used for controlling the motor control module to carry out torque removing treatment on the offset backlash torque applied by the motor when the offset backlash torque applied by the motor is determined, and controlling and executing a P gear; and the gear shifting execution module is used for controlling the P-gear lock ratchet to carry out gear withdrawing operation after the torque withdrawing is completed.

In an exemplary embodiment, the device further includes a shift lever control module, one end of the shift lever control module is electrically connected to the hybrid control module through the conversion gateway module, and the other end of the shift lever control module is electrically connected to the shift execution module; the gear shift lever control module is used for determining the P-gear outlet operation of the target object and feeding back the P-gear outlet operation to the hybrid power control module through the conversion gateway module.

According to an aspect of an embodiment of the present application, there is provided a hybrid vehicle including: one or more processors; a memory; one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications configured to perform the hybrid vehicle out-of-P control method described above.

According to an aspect of an embodiment of the present application, there is provided a computer-readable storage medium having stored thereon computer-readable instructions, which when executed by a processor of a computer, cause the computer to perform the hybrid vehicle P-range out control method as described above.

According to the technical scheme provided by the embodiment of the application, when the motor is determined to apply the offset backlash torque, the offset backlash torque is removed, and after the removal of the offset backlash torque is completed, the P-gear locking ratchet is subjected to the gear removing operation so as to execute the P gear, so that the problem of automobile pause caused by directly carrying out the gear removing operation on the P-gear locking ratchet when the motor applies the offset backlash torque can be avoided, and the driving comfort is improved.

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.

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. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art. In the drawings:

FIG. 1 is a simplified schematic diagram of a single row hybrid vehicle of the present application;

FIG. 2 is a schematic diagram illustrating an implementation environment of a method for controlling an out-of-P gear of a hybrid vehicle according to an exemplary embodiment of the present application;

FIG. 3 is a flowchart illustrating a method of controlling an out-of-P gear of a hybrid vehicle according to an exemplary embodiment of the present application;

FIG. 4 is a flow chart of a hybrid vehicle out-of-P control shown in yet another exemplary embodiment of the application;

fig. 5 is a flowchart of a hybrid vehicle out-of-P control shown in yet another exemplary embodiment of the application;

fig. 6 is a block diagram of a P-gear out control device of a hybrid vehicle according to an exemplary embodiment of the present application;

FIG. 7 is a flow chart of the hybrid vehicle P-out control method executed by the hybrid vehicle P-out control device shown in FIG. 6;

fig. 8 shows a schematic diagram of a computer system suitable for use in a hybrid vehicle embodying an embodiment of the present application.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. 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.

The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.

In the present application, the term "plurality" means two or more. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., a and/or B may represent: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Firstly, with the development of the automobile industry, automobiles gradually become a main traveling mode of human beings, so that requirements of automobile drivers on automobile performances are higher and higher. Among them, improving the performance of hybrid vehicles in various aspects is a problem to be solved by various car manufacturers.

At present, in the actual development process of a hybrid electric vehicle, various gear knocking problems are caused due to the complicated working conditions, control strategies and other factors, for example, a motor applies offset backlash torque on a single planet gear ring to cause a larger pressing force on a single side of a P-gear lock ratchet, if P-gear operation is performed at the moment, the larger pressing force can enable the ratchet to retract, abnormal sound is generated, and the problem of vehicle pause is caused.

Based on the above, in order to improve the driving comfort of the hybrid electric vehicle, the embodiment of the application relates to a method for removing torque from the offset backlash torque when the motor is determined to apply the offset backlash torque, and performing the gear removing operation on the P-stage lock ratchet after the torque is removed so as to execute the P-stage, thereby avoiding the problem of the vehicle being suddenly cut due to the gear removing operation on the P-stage lock ratchet when the motor is determined to apply the offset backlash torque, and improving the driving comfort.

For example, the hybrid vehicle of the present application employs a single planetary gear system, and thus, referring to fig. 1 for a detailed structure of the single planetary gear system, fig. 1 is a simplified schematic diagram of the single planetary gear system of the present application, and fig. 1 shows a single planetary gear system 10 including an engine 1, a torsional damper 2, a single planetary gear 3, a generator 4, a reduction mechanism 5, an electric motor 6, a final drive gear 7, and a transaxle 8. Wherein the engine 1 is connected with a planet carrier (not shown in the figure) of the single planet row 3 through a torsional vibration damper 2, the generator 4 is connected with a sun gear (not shown in the figure) of the single planet row 3, and the motor 6 is connected with an outer gear ring of the single planet row 3 through a speed reducing mechanism 5.

Fig. 2 is a schematic diagram of an implementation environment in which the present application is directed. As shown in fig. 2, the implementation environment includes a vehicle-mounted component terminal 210 and a control terminal 220, and the vehicle-mounted component terminal 210 and the control terminal 220 establish a wired or wireless network connection in advance.

As shown in fig. 2, in the P-gear out control process of the hybrid electric vehicle, when it is determined that the motor in the vehicle-mounted component end 210 applies the offset backlash torque, the control end 220 performs a torque removing process on the offset backlash torque applied by the motor in the vehicle-mounted component end 210, and after the torque removing process is completed, controls the P-gear lock ratchet in the vehicle-mounted component end 210 to perform a gear removing operation, so as to execute the P-gear out based on the gear removing operation.

The control terminal 220 shown in fig. 2 may be any control terminal supporting P-gear control, such as a smart phone, a vehicle-mounted computer, a tablet computer, a notebook computer, or a wearable device, but is not limited thereto. The control end 220 shown in fig. 2 may be a server, for example, an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or a cloud server that provides cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN (Content Delivery Network ), and basic cloud computing services such as big data and an artificial intelligence platform, which are not limited herein. The control terminal 220 may communicate with the vehicle component terminal 210 through a wireless network such as 3G (third generation mobile information technology), 4G (fourth generation mobile information technology), 5G (fifth generation mobile information technology), and the like, which is not limited herein.

Referring to fig. 3, fig. 3 is a flowchart illustrating a method for controlling an out-P gear of a hybrid vehicle according to an exemplary embodiment of the application. The method may be applied to the implementation environment shown in fig. 2, and is specifically performed by the control terminal 220 in the implementation environment. It should be understood that the method may be adapted to other exemplary implementation environments and be specifically executed by devices in other implementation environments, and the implementation environments to which the method is adapted are not limited by the present embodiment.

The following describes the P-gear out control method of the hybrid electric vehicle according to the embodiment of the present application in detail with the P-gear out control device of the hybrid electric vehicle as a specific execution body.

As shown in fig. 3, in an exemplary embodiment, the method for controlling the P-gear of the hybrid vehicle at least includes steps S310 to S320, which are described in detail as follows:

and step S310, when the motor is determined to apply the offset backlash torque, performing torque removing processing on the offset backlash torque applied by the motor.

And step S320, after the torque is removed, controlling the P-gear lock ratchet to carry out the tooth removing operation so as to execute the P gear based on the tooth removing operation.

The canceling tooth torque is for canceling a gap between gears.

The torque canceling process is a process of canceling the torque applied from the motor to cancel the torque applied from the teeth.

The P lock ratchet means a ratchet included in the P lock. Illustratively, when the P-lock is locked, the ratchet is in the locked state.

The out-of-P gear means that the shift lever is not located at the position of the P gear.

When the motor is determined to apply offset backlash torque, the P gear output control device of the hybrid electric vehicle carries out torque removing treatment on the applied offset backlash torque so as to avoid the influence of the offset backlash torque applied by the motor on the gear-withdrawing of the P gear lock ratchet, and then the P gear lock ratchet is controlled to carry out gear-withdrawing operation, and then the P gear is executed based on the gear-withdrawing operation.

As can be seen, in the P gear output control method of the hybrid electric vehicle according to the embodiment, when the motor is determined to apply the offset backlash torque, the offset backlash torque is removed, and the P gear lock ratchet is subjected to the gear-withdrawing operation so as to execute the P gear, so that the problem of vehicle contusion caused by directly carrying out the gear-withdrawing operation on the P gear lock ratchet when the motor applies the offset backlash torque can be avoided, and the driving comfort is improved.

Fig. 4 is a flowchart showing an out-P control of a hybrid vehicle according to still another exemplary embodiment of the present application. In the embodiment shown in fig. 4, when the motor does not apply the torque counteracting the backlash, the ratchet wheel of the P-gear lock is directly controlled to perform the gear reversing operation, and the other steps of the hybrid electric vehicle for the P-gear are described in the foregoing embodiment, which is not repeated here.

As shown in fig. 4, in an exemplary embodiment, the method for controlling the P-gear of the hybrid vehicle further includes at least steps S410 to S420, which are described in detail as follows:

step S410, in response to the P-out operation of the target object, determines whether the motor applies the offset backlash torque.

In step S420, if the motor does not apply the torque to counteract the backlash, the P-stage lock ratchet is controlled to perform a gear-withdrawing operation to execute the P-stage based on the gear-withdrawing operation.

The target object is a driver who drives the hybrid vehicle.

The P gear discharging control device of the hybrid electric vehicle judges whether the motor applies offset tooth space torque or not based on the P gear discharging operation of the target object, and if the motor does not apply offset tooth space torque, the P gear locking ratchet wheel is controlled to perform the gear discharging operation so as to execute the P gear discharging operation based on the gear discharging operation; if the motor applies the offset backlash torque, step S310 of the above embodiment is performed.

The mode of determining the P-gear out operation performed by the target object by the P-gear out control device of the hybrid electric vehicle can be that the P-gear out operation is performed by the target object according to the degree of the position change by sensing the position change of the gear shift lever through the sensor. Illustratively, the current position of the shift lever is sensed by a sensor, and whether the target object performs the P-range out operation is determined based on a magnitude relation between a distance difference between the sensed current position and the initial position of the shift lever and a preset threshold. Specifically, when the difference value of the distance between the current position and the initial position of the gear shift lever is greater than or equal to a preset threshold value, the target object is determined to perform the P-gear out operation, and when the difference value of the distance between the current position and the initial position of the gear shift lever is less than the preset threshold value, the target object is determined to not perform the P-gear out operation.

It can be seen that, in the P-gear out control method of the hybrid electric vehicle according to the embodiment, in response to the P-gear out operation of the target object, it is determined whether the motor applies the offset backlash torque; if the motor does not apply the offset backlash torque, the P-gear lock ratchet wheel is controlled to directly carry out the gear withdrawing operation so as to execute the P gear based on the gear withdrawing operation, so that the problem of automobile contusion caused by the fact that the motor applies the offset backlash torque to directly carry out the gear withdrawing operation on the P-gear lock ratchet wheel can be avoided, and the driving comfort is improved.

Fig. 5 is a flowchart showing an out-P control of a hybrid vehicle according to still another exemplary embodiment of the present application. In the embodiment shown in fig. 5, the control device for the gear shift out of the hybrid electric vehicle determines whether the gear shift lock ratchet is successfully retracted according to the position of the ratchet after the gear shift out, and other steps of the gear shift out of the hybrid electric vehicle are described in the foregoing embodiments, and are not repeated herein.

As shown in fig. 5, in the above exemplary embodiment, the process of executing the P range based on the tooth withdrawing operation further includes at least steps S510 to S520, which are described in detail as follows:

step S510, determining a ratchet position after the tooth withdrawing operation.

Step S520, executing the P range based on the ratchet position.

The ratchet positions include lost communication positions, denoted as Unknown, ratchet locking positions, denoted as P, positions at which the ratchet is retracted, denoted as ptopp, positions at which the ratchet is advanced, denoted as NOTPtoP, and ratchet retraction completion positions, denoted as NOTP. Note that the communication location, i.e., its no location information, is lost. When the ratchet wheel is positioned at the ratchet wheel tooth withdrawing completion position, the ratchet wheel tooth withdrawing completion can be determined, and then the P gear is executed; when the ratchet wheel position is at one of the lost communication position UnkNOWN, the ratchet wheel locking position P, the position PtoNOTP where the ratchet wheel is in the gear withdrawing state and the position NOTOP where the ratchet wheel is in the gear advancing state, the ratchet wheel does not complete the gear withdrawing operation, and the P gear withdrawing operation cannot be executed.

After a P gear outlet control device of the hybrid electric vehicle controls a P gear lock ratchet to carry out gear withdrawing operation, acquiring a ratchet position after the gear withdrawing operation, and executing the P gear outlet when the ratchet position after the gear withdrawing is at a ratchet gear withdrawing completion position; when the ratchet wheel position after tooth withdrawal is at one of the lost communication position, the ratchet wheel locking position, the position of the ratchet wheel when tooth withdrawal and the position of the ratchet wheel when tooth feeding, the P gear outlet operation is not executed.

It can be seen that, after the control method for controlling the gear-out control of the hybrid electric vehicle to output the gear-out gear of the hybrid electric vehicle controls the gear-out gear of the gear-out gear lock to perform the gear-out operation, the ratchet position after gear-out is obtained, and when the ratchet position after gear-out is at the ratchet gear-out completion position, the gear-out gear is executed; when the ratchet wheel position after tooth withdrawal is at one of the positions of the lost communication position, the ratchet wheel locking position, the position of the ratchet wheel when tooth withdrawal is carried out and the position of the ratchet wheel when tooth feeding is carried out, the P gear outlet operation is not executed, so that the P gear outlet time can be accurately determined, the P gear outlet operation is ensured to be correct, and the problem of automobile pause caused by operation errors is avoided.

On the basis of the embodiment, the embodiment of the application provides a P-gear output control device of a hybrid electric vehicle, which can be applied to the implementation environment shown in fig. 2. The apparatus may also be adapted to other exemplary implementation environments and may be specifically configured in other devices, and the present embodiment is not limited to the implementation environments to which the apparatus is adapted.

Referring to fig. 6 for details, a schematic diagram of a frame structure of a P-gear out control device of a hybrid vehicle is shown in fig. 6. The hybrid electric vehicle P-gear output control device 600 includes a hybrid electric control module (HVCU) 61, a motor control module (PCU) 62, a gear shift execution module (ACM) 63, a shift lever control module (GSM) 64, and a conversion gateway module (GWMT) 65, the hybrid electric control module (HVCU) 61 is electrically connected with the motor control module (PCU) 62, the hybrid electric control module (HVCU) 61 is electrically connected with the gear shift execution module (ACM) 63 through the conversion gateway module (GWMT) 65, one end of the shift lever control module (GSM) 64 is electrically connected with the hybrid electric control module (HVCU) 61 through the conversion gateway module (GWMT) 65, and the other end of the shift lever control module (GSM) 64 is electrically connected with the gear shift execution module (ACM) 63.

Specifically, the hybrid control module (HVCU) 61 is configured to, when determining that the motor applies the offset backlash torque, control the motor control module (PCU) 62 to perform a torque removing process on the offset backlash torque applied by the motor, and control to execute a gear-out operation, and the shift execution module (ACM) 63 is configured to, after the torque removing process is completed, control the gear-out ratchet to perform a gear-out operation, and the shift lever control module (GSM) 64 is configured to determine a gear-out operation of the target object, and feedback the gear-out operation to the hybrid control module (HVCU) 61 through the transition gateway module (GWMT) 65.

It can be seen that, after determining that the target object performs the P-gear output operation, the shift lever control module (GSM) 64 in the P-gear output control device of the hybrid vehicle according to this embodiment feeds back the P-gear output operation to the hybrid control module (HVCU) 61 through the transition gateway module (GWMT) 65, and the hybrid control module (HVCU) 61 determines whether the motor applies the offset tooth torque, if so, the motor control module (PCU) 62 performs the torque cancellation process on the offset tooth torque applied by the motor, and after the torque cancellation process is completed, the shift execution module (ACM) 63 controls the P-gear lock ratchet to perform the gear cancellation operation, and the motor control module (PCU) 62 executes the P-gear based on the gear cancellation operation, thereby avoiding the problem of vehicle contusion caused by directly performing the gear cancellation operation on the P-gear lock ratchet when the offset tooth torque is applied by the motor, and improving the driving comfort.

For example, to describe in detail the execution operations of the hybrid control module (HVCU) 61, the motor control module (PCU) 62, the shift execution module (ACM) 63, the shift lever control module (GSM) 64, and the transition gateway module (GWMT) 65 in the hybrid vehicle P-out control device, reference may be continued to fig. 7, in which fig. 7 is a schematic flow diagram showing a method for executing the hybrid vehicle P-out control method by the hybrid vehicle P-out control device, and as shown in fig. 7, the process of executing the hybrid vehicle P-out control method by the hybrid vehicle P-out control device further includes at least steps S710 to S720, which are described in detail as follows:

in step S710, the shift lever control module (GSM) responds to the P-out operation of the target object, and feeds back the P-out request.

In step S720, the hybrid control module (HVCU) determines whether the motor applies the applied countering tooth torque.

In step S730, the hybrid control module (HVCU) controls the motor control module (PCU) to perform the untwisting process on the offset backlash torque applied by the motor.

In step S740, the shift execution module (ACM) performs a tooth-withdrawing operation on the P-gear lock ratchet after the torque is removed, and shares the ratchet position after tooth withdrawal through the shift lever control module (GSM) and the conversion gateway module (GWMT).

In step S750, the hybrid control module (HVCU) executes out the P range when detecting that the ratchet position after the tooth withdrawal is at the tooth withdrawal completion position.

The target object is a driver who drives the hybrid vehicle.

The P-out request refers to a P-out operation performed by the target object.

The canceling tooth torque is for canceling a gap between gears.

The ratchet positions include lost communication positions, denoted as Unknown, ratchet locking positions, denoted as P, positions at which the ratchet is retracted, denoted as ptopp, positions at which the ratchet is advanced, denoted as NOTPtoP, and ratchet retraction completion positions, denoted as NOTP. Note that the communication position is lost, that is, the position has no position information. When the ratchet wheel is positioned at the ratchet wheel tooth withdrawing completion position, the ratchet wheel tooth withdrawing completion can be determined, and then the P gear is executed; when the ratchet wheel position is at one of the lost communication position UnkNOWN, the ratchet wheel locking position P, the position PtoNOTP where the ratchet wheel is in the gear withdrawing state and the position NOTOP where the ratchet wheel is in the gear advancing state, the ratchet wheel does not complete the gear withdrawing operation, and the P gear withdrawing operation cannot be executed.

In response to a P-gear out operation of a target object on a gear shift lever, a gear shift lever control module (GSM) 64 in a hybrid vehicle P-gear out control device acquires a P-gear out operation signal of the target object, generates a P-gear out request based on the acquired P-gear out operation signal of the target object, and feeds back the P-gear out request to a conversion gateway module (GWMT) 65; the hybrid power control module (HVCU) 61 judges whether the motor applies offset backlash torque according to the P-gear output request fed back by the shift lever control module (GSM) 64 at the conversion gateway module (GWMT) 65, if yes, the motor control module (PCU) 62 is controlled to carry out torque removing treatment on the offset backlash torque applied by the motor; after the torque is removed, a motor control module (PCU) 62 controls a P-gear lock ratchet wheel to carry out a tooth removing operation by a gear shifting execution module (ACM) 63, and shares the ratchet wheel position after tooth removing through a gear shifting lever control module (GSM) and a conversion gateway module (GWMT) 65; the hybrid control module (HVCU) 61 executes out of the P range when detecting that the ratchet position after the tooth withdrawal is in the tooth withdrawal completion position, and does not execute out of the P range when detecting that the ratchet position is one of the lost communication position, the ratchet lock position, the position at which the ratchet is withdrawn, and the position at which the ratchet is advanced.

The shift lever control module (GSM) 64 in the P-gear output control device of the hybrid vehicle can also detect the position change of the shift lever in real time through a sensor, and generate a shift lever position signal when the position change occurs, the shift lever control module (GSM) 64 generates a shift request signal according to the shift lever position signal, and shares the shift request signal to the conversion gateway module (GWMT) 65; the hybrid control module (HVCU) 61 generates a status signal according to a shift request signal shared by the shift lever control module (GSM) 64 to the switching gateway module (GWMT) 65, and when the status signal is determined to be a gear-out, determines whether the motor applies a cancellation gear-clearance torque through the internal signal of the hybrid control module (HVCU) 61, if yes, sends a cancellation signal to the motor control module (PCU) 62, the motor control module (PCU) 62 performs a cancellation process on the cancellation gear-clearance torque applied to the motor according to the cancellation signal, sends a completion signal to the hybrid control module (HVCU) 61 after the cancellation is completed, the hybrid control module (HVCU) 61 updates the status signal according to the completion signal, after that, the shift lever control module (GSM) 64 generates a cancellation gear-execution signal according to the internal signal shared by the hybrid control module (HVCU) 61 to the switching gateway module (GWMT) 65, and sends the cancellation gear-execution signal to the shift execution module (ACM) 63, and the shift execution module (ACM) 63 performs a cancellation gear-operation according to the teeth-execution signal and feeds back to the ratchet position to the shift lever control module (PCU) 64, and the ratchet position is detected to be in the position at the position of the switching Gateway (GWMT) 65 when the hybrid control module (HVCU) is shared by the switching gateway module (gwtt) 65).

The mode of determining the P-gear out operation performed by the target object by the P-gear out control device of the hybrid electric vehicle can be that the P-gear out operation is performed by the target object according to the degree of the position change by sensing the position change of the gear shift lever through the sensor. Illustratively, the current position of the shift lever is sensed by a sensor, and whether the P-shift operation is performed by the target object is set based on a magnitude relation between a distance difference between the sensed current position and the initial position of the shift lever and a preset threshold. Specifically, when the difference value of the distance between the current position and the initial position of the gear shift lever is greater than or equal to a preset threshold value, the target object is determined to perform the P-gear out operation, and when the difference value of the distance between the current position and the initial position of the gear shift lever is less than the preset threshold value, the target object is determined to not perform the P-gear out operation.

It should be noted that the hybrid electric vehicle of the embodiment of the application has no clutch, and has a design that the P gear is locked at the outer gear ring of the single planet gear.

As can be seen, in the P-gear out control device of the hybrid electric vehicle according to the present embodiment, the shift lever control module (GSM) 64 responds to the P-gear out operation of the shift lever by the target object, obtains the P-gear out operation signal of the target object, generates a P-gear out request based on the obtained P-gear out operation signal of the target object, and feeds back the P-gear out request to the conversion gateway module (GWMT) 65; the hybrid power control module (HVCU) 61 judges whether the motor applies offset backlash torque according to the P-gear output request fed back by the shift lever control module (GSM) 64 at the conversion gateway module (GWMT) 65, if yes, the motor control module (PCU) 62 is controlled to carry out torque removing treatment on the offset backlash torque applied by the motor; after the torque is removed, a motor control module (PCU) 62 controls a P-gear lock ratchet wheel to carry out a tooth removing operation by a gear shifting execution module (ACM) 63, and shares the ratchet wheel position after tooth removing through a gear shifting lever control module (GSM) and a conversion gateway module (GWMT) 65; the hybrid control module (HVCU) 61 executes out of the P range when detecting that the ratchet position after the tooth withdrawal is in the tooth withdrawal completion position, and does not execute out of the P range when detecting that the ratchet position is one of the lost communication position, the ratchet lock position, the position at which the ratchet is withdrawn, and the position at which the ratchet is advanced. Therefore, the problem of automobile setbacks caused by directly carrying out the tooth withdrawing operation on the P-gear lock ratchet wheel when the motor applies the tooth counteracting torque can be avoided, and the driving comfort is improved.

It should be noted that, the P-gear output control device of the hybrid electric vehicle provided in the foregoing embodiment and the P-gear output control method of the hybrid electric vehicle provided in the foregoing embodiment belong to the same concept, and specific manners in which each module and unit perform operations have been described in detail in the method embodiment, which is not repeated herein. In practical application, the P-gear output control device for a hybrid electric vehicle provided in the above embodiment may allocate the functions to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above, which is not limited herein.

The embodiment of the application also provides a hybrid electric vehicle, which comprises: one or more processors; and the storage device is used for storing one or more programs, and when the one or more programs are executed by the one or more processors, the hybrid electric vehicle realizes the P-gear out control method of the hybrid electric vehicle provided in each embodiment.

Fig. 8 shows a schematic diagram of a computer system suitable for use in a hybrid vehicle embodying an embodiment of the present application. It should be noted that, the computer system 800 of the hybrid electric vehicle shown in fig. 8 is only an example, and should not impose any limitation on the functions and the application scope of the embodiment of the present application.

As shown in fig. 8, the computer system 800 includes a central processing unit (Central Processing Unit, CPU) 801 that can perform various appropriate actions and processes, such as performing the methods described in the above embodiments, according to a program stored in a Read-Only Memory (ROM) 802 or a program loaded from a storage section 808 into a random access Memory (Random Access Memory, RAM) 803. In the RAM 803, various programs and data required for system operation are also stored. The CPU 801, ROM 802, and RAM 803 are connected to each other by a bus 804. An Input/Output (I/O) interface 805 is also connected to bus 804.

The following components are connected to the I/O interface 805: an input portion 806 including a keyboard, mouse, etc.; an output portion 807 including a Cathode Ray Tube (CRT), a liquid crystal display (Liquid Crystal Display, LCD), and the like, and a speaker, and the like; a storage section 808 including a hard disk or the like; and a communication section 809 including a network interface card such as a LAN (Local Area Network ) card, modem, or the like. The communication section 809 performs communication processing via a network such as the internet. The drive 810 is also connected to the I/O interface 805 as needed. A removable medium 811 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 810 as needed so that a computer program read out therefrom is mounted into the storage portion 808 as needed.

In particular, according to embodiments of the present application, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising a computer program for performing the method shown in the flowchart. In such an embodiment, the computer program may be downloaded and installed from a network via the communication section 809, and/or installed from the removable media 811. When executed by a Central Processing Unit (CPU) 801, performs the various functions defined in the system of the present application.

It should be noted that, the computer readable medium shown in the embodiments of the present application may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium may be, for example, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-Only Memory (ROM), an erasable programmable read-Only Memory (Erasable Programmable Read Only Memory, EPROM), flash Memory, an optical fiber, a portable compact disc read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer-readable signal medium may comprise a data signal propagated in baseband or as part of a carrier wave, with a computer-readable computer program embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. A computer program embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Where each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units involved in the embodiments of the present application may be implemented by software, or may be implemented by hardware, and the described units may also be provided in a processor. Wherein the names of the units do not constitute a limitation of the units themselves in some cases.

Another aspect of the present application also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method for controlling P-out of a hybrid vehicle as described above. The computer-readable storage medium may be included in the electronic device described in the above embodiment or may exist alone without being incorporated in the electronic device.

Another aspect of the application also provides a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the P-gear out control method of the hybrid vehicle provided in the above-described respective embodiments.

The foregoing is merely illustrative of the preferred embodiments of the present application and is not intended to limit the embodiments of the present application, and those skilled in the art can easily make corresponding variations or modifications according to the main concept and spirit of the present application, so that the protection scope of the present application shall be defined by the claims.

Claims

1. The method for controlling the P gear of the hybrid electric vehicle is characterized by comprising the following steps of:

when the motor is determined to apply the offset backlash torque, performing torque removing processing on the offset backlash torque applied by the motor;

after the torque is removed, controlling a P-gear lock ratchet to carry out tooth removing operation, and determining the ratchet position after the tooth removing operation, wherein the ratchet position comprises a lost communication position, a ratchet locking position, a position of the ratchet when the tooth is removed, a position of the ratchet when the tooth is advanced and a ratchet tooth removing completion position;

and executing the P gear based on the ratchet position.

2. The method according to claim 1, wherein the method further comprises:

judging whether the motor applies offset tooth torque or not in response to the P-gear out operation of the target object;

and if the motor does not apply the offset backlash torque, controlling the P-gear locking ratchet wheel to carry out the gear withdrawing operation so as to execute the P gear based on the gear withdrawing operation.

3. The method of claim 2, wherein prior to the step of determining whether the motor applies a countering backlash torque, the method further comprises:

acquiring the current position of a gear level;

calculating a distance difference value between the current position and the initial position of the gear level;

and if the distance difference value is greater than or equal to a preset threshold value, determining that the target object performs P-gear outputting operation.

4. The method of claim 1, wherein the step of executing a P-gear based on the ratchet position comprises:

and executing the P gear when the ratchet wheel position is at the gear withdrawal completion position.

5. The method of claim 4, wherein prior to the step of executing the P-gear step if the ratchet position is in the tooth back completion position, the method further comprises:

and if the ratchet wheel position is at one of the lost communication position, the ratchet wheel locking position, the position of the ratchet wheel when the ratchet wheel is retreated and the position of the ratchet wheel when the ratchet wheel is advanced, the P gear is not executed.

6. The P gear output control device of the hybrid electric vehicle is characterized by comprising a hybrid control module, a motor control module, a gear shifting execution module and a conversion gateway module, wherein the hybrid control module is electrically connected with the motor control module, and the hybrid control module is electrically connected with the gear shifting execution module through the conversion gateway module;

the hybrid power control module is used for controlling the motor control module to carry out torque removing treatment on the offset backlash torque applied by the motor when the offset backlash torque applied by the motor is determined, and controlling and executing a P gear;

the gear shifting execution module is used for controlling the P-gear lock ratchet to carry out gear withdrawing operation after the torque withdrawing is completed, determining the ratchet position after the gear withdrawing operation, wherein the ratchet position comprises a lost communication position, a ratchet locking position, a ratchet gear withdrawing position, a ratchet gear feeding position and a ratchet gear withdrawing completion position, and executing the P gear based on the ratchet position.

7. The device according to claim 6, further comprising a shift lever control module, wherein one end of the shift lever control module is electrically connected to the hybrid control module through the conversion gateway module, and the other end of the shift lever control module is electrically connected to the shift execution module;

the gear shift lever control module is used for determining the P-gear outlet operation of the target object and feeding back the P-gear outlet operation to the hybrid power control module through the conversion gateway module.

8. A hybrid vehicle, the vehicle comprising:

one or more processors;

a memory;

one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications configured to perform the hybrid vehicle out-of-P control method of any one of claims 1 to 5.

9. A computer-readable storage medium having stored thereon computer-readable instructions that, when executed by a processor of a computer, cause the computer to perform the hybrid vehicle out-P range control method according to any one of claims 1 to 5.