CN116811835A - Vehicle motor control method and device and vehicle - Google Patents
Vehicle motor control method and device and vehicle Download PDFInfo
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Abstract
The present disclosure provides a vehicle motor control method, device and vehicle, including: acquiring a vehicle gear state and the current rotating speed of a vehicle motor, wherein the vehicle motor is arranged in a vehicle gearbox; determining a vehicle motor state according to the vehicle gear state, and determining a target torque limit value corresponding to the vehicle motor state and the current rotation speed of the vehicle motor based on the vehicle motor state and the current rotation speed of the vehicle motor; and controlling the vehicle motor to run in a torque limiting range corresponding to the target torque limit value. The method and the device realize avoiding the reverse rotation of the motor of the vehicle and improving the drivability of the whole vehicle.
Description
Technical Field
The disclosure relates to the technical field of vehicle control, and in particular relates to a vehicle motor control method and device and a vehicle.
Background
With the rapid development of the technical field of vehicles, vehicles become an important riding tool in daily life. The forward and backward movement of the vehicle can be controlled by the vehicle gear, for example, when the vehicle is in a driving state, the vehicle gear can be driven forward in the forward gear, and the vehicle gear can be reversed backward in the reverse gear.
In the running process of the vehicle, the motor of the vehicle is easy to reverse when the gear is changed, so that the problem that abnormal sound is generated on the vehicle and even the engine of the vehicle is reversely towed is caused, the engine of the vehicle is damaged, and the drivability of the vehicle is affected.
In view of this, how to avoid the occurrence of reverse rotation of the motor of the vehicle and improve the drivability of the whole vehicle becomes an important research problem.
Disclosure of Invention
Accordingly, an object of the present disclosure is to provide a vehicle motor control method and apparatus, and a vehicle, for solving the problem of occurrence of reverse rotation of a vehicle motor.
In view of the above object, a first aspect of the present disclosure provides a vehicle motor control method including:
acquiring a vehicle gear state and the current rotating speed of a vehicle motor, wherein the vehicle motor is arranged in a vehicle gearbox;
determining a vehicle motor state according to the vehicle gear state, and determining a target torque limit value corresponding to the vehicle motor state and the current rotation speed of the vehicle motor based on the vehicle motor state and the current rotation speed of the vehicle motor;
and controlling the vehicle motor to run in a torque limiting range corresponding to the target torque limit value.
Based on the same inventive concept, a second aspect of the present disclosure proposes a vehicle motor control device including:
an information acquisition module configured to acquire a vehicle gear state, and a current rotational speed of a vehicle motor, wherein the vehicle motor is disposed inside a vehicle transmission;
a torque limit determination module configured to determine a vehicle motor state from the vehicle gear state, determine a target torque limit corresponding to the vehicle motor state and a current rotational speed of the vehicle motor based on the vehicle motor state and the current rotational speed of the vehicle motor;
a motor control module configured to control the vehicle motor to operate within a torque limit corresponding to the target torque limit.
Based on the same inventive concept, a third aspect of the present disclosure proposes an electronic device comprising a memory, a processor and a computer program stored on the memory and executable by the processor, the processor implementing the method as described above when executing the computer program.
Based on the same inventive concept, a fourth aspect of the present disclosure proposes a non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the method as described above.
Based on the same inventive concept, a fifth aspect of the present disclosure provides a vehicle including the vehicle motor control apparatus of the second aspect or the electronic device of the third aspect or the storage medium of the fourth aspect.
As can be seen from the foregoing, the present disclosure proposes a vehicle motor control method, apparatus, and vehicle, by acquiring a vehicle gear state, and a current rotational speed of a vehicle motor, determining a vehicle motor state according to the vehicle gear state, determining target torque limits corresponding to the vehicle motor state and the current rotational speed of the vehicle motor based on the vehicle motor state and the current rotational speed of the vehicle motor, that is, determining target torque limits corresponding to operating conditions under different operating conditions. By controlling the vehicle motor to run in the torque limiting range corresponding to the target torque limit value, the problem that abnormal sound occurs in the vehicle and even the vehicle engine is reversely towed due to the fact that the motor is reversed can be avoided, normal running of the engine is guaranteed, and drivability of the whole vehicle is improved.
Drawings
In order to more clearly illustrate the technical solutions of the present disclosure or related art, the drawings required for the embodiments or related art description will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to those of ordinary skill in the art.
FIG. 1 is a flow chart of a vehicle motor control method of an embodiment of the present disclosure;
FIG. 2 is a schematic illustration of a vehicle architecture of an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of another vehicle architecture of an embodiment of the present disclosure;
fig. 4 is a block diagram of a vehicle motor control apparatus according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the disclosure.
Detailed Description
For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same.
It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present disclosure pertains. The terms "first," "second," and the like, as used in embodiments of the present disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
The terms referred to in this disclosure are explained as follows:
and (3) ECU: an electronic control unit (Electronic Control Unit, ECU) controls the running state of the automobile and realizes various functions thereof. The method mainly uses various sensors and buses for data acquisition and exchange to judge the state of the vehicle and the intention of a driver and controls the automobile through an actuator.
rpm: revolutions per minute (revolutions per minute, rpm), the rotational speed unit, indicates the number of revolutions per minute of the device.
N x M: bovine x M, motor torque unit.
The vehicle motor is one of the structures of the new energy automobile, which is different from the fuel oil automobile, is a core component for the new energy automobile to obtain the forward power, determines the load capacity, acceleration, climbing and other capacities of the new energy automobile, and also influences the running direction of the new energy automobile, engine control and other aspects.
Based on the above description, the present embodiment proposes a vehicle motor control method, as shown in fig. 1, including:
step 101, acquiring a vehicle gear state and a current rotation speed of a vehicle motor, wherein the vehicle motor is arranged in a vehicle gearbox.
In specific implementation, the vehicle architecture corresponding to the vehicle motor arranged in the vehicle gearbox is a P2.5 architecture, and the vehicle motor in the P2.5 architecture is arranged in the vehicle gearbox. According to different positions of vehicle motors, the architecture can be divided into P0, P1, P2, P3 and P4, wherein P0 refers to that the vehicle motor is positioned on an engine belt, the P1 motor is directly connected with a crankshaft of the engine, the P2 motor is positioned between the engine and a gearbox and behind a clutch, the P3 motor is positioned behind the gearbox, and P4 refers to that the motor drives a rear axle. The vehicle motor position in the P2.5 architecture is approximately between P2 and P3 defined above, integrated into the vehicle transmission. The method comprises the steps of obtaining a vehicle gear state and the current rotating speed of a vehicle motor, and illustratively obtaining the vehicle gear state through a vehicle ECU, wherein the vehicle comprises a rotating speed sensor, and obtaining the current rotating speed of the vehicle motor through the sensor so as to adjust the torque of the vehicle motor according to the current rotating speed of the vehicle motor in the follow-up step.
Step 102, determining a vehicle motor state according to the vehicle gear state, and determining a target torque limit value corresponding to the vehicle motor state and the current rotation speed of the vehicle motor based on the vehicle motor state and the current rotation speed of the vehicle motor.
When the method is implemented, the vehicle motor state is determined according to the vehicle gear state obtained in the steps, the target torque limit value corresponding to the vehicle motor state and the current rotating speed of the vehicle motor is determined according to the vehicle motor state and the current rotating speed of the vehicle motor, and the vehicle motor state and the current rotating speed of the vehicle motor are the working condition of the current vehicle.
And step 103, controlling the vehicle motor to run in a torque limiting range corresponding to the target torque limiting value.
In specific implementation, a target torque limit value corresponding to the state of the vehicle motor and the current rotation speed of the vehicle motor is obtained through the steps, wherein the target torque limit value is the maximum value of the torque allowed to be output when the vehicle motor runs. Through the scheme, the vehicle motor is controlled to run in the torque limiting range corresponding to the target torque limiting value, so that the situation that the vehicle motor is reversed can be effectively avoided, and abnormal sound or the engine is towed and reversed.
According to the scheme, the vehicle gear state and the current rotating speed of the vehicle motor are obtained, the vehicle motor state is determined according to the vehicle gear state, the target torque limit value corresponding to the vehicle motor state and the current rotating speed of the vehicle motor is determined based on the vehicle motor state and the current rotating speed of the vehicle motor, namely, the target torque limit value corresponding to the working condition is determined under different working conditions. By controlling the vehicle motor to run in the torque limiting range corresponding to the target torque limit value, the problem that abnormal sound occurs in the vehicle and even the vehicle engine is reversely towed due to the fact that the motor is reversed can be avoided, normal running of the engine is guaranteed, and drivability of the whole vehicle is improved.
In some embodiments, the vehicle gear comprises a vehicle transmission gear, and step 102 specifically comprises:
step 1021, a vehicle transmission gear is obtained, wherein the vehicle transmission gear is connected with the vehicle motor.
In particular embodiments, a vehicle transmission gear is coupled to the vehicle motor, the vehicle transmission gear including at least one of: an even-numbered or odd-numbered gear, as illustrated in fig. 2 and 3, wherein C1 and C2 are clutches, and fig. 2 is an even-numbered gear coupled to the vehicle motor, the even-numbered gear including at least one of: r gear (reverse gear), 2 gear and 4 gear, FIG. 3 is an odd-numbered gears coupled to the vehicle motor, the odd-numbered gears comprising at least one of: gear 1, gear 3 and gear 5. A vehicle transmission gear state is obtained.
Step 1022, in response to the vehicle transmission gear being in gear, determining that the vehicle motor state is a driving state, determining a first target torque limit corresponding to the driving state and the current rotational speed of the vehicle motor based on the driving state and the current rotational speed of the vehicle motor.
In the specific implementation, the vehicle motor is connected with the vehicle transmission gear at the moment in response to the vehicle transmission gear being in gear, and the vehicle motor state is a driving state. A first target torque limit corresponding to the driving state and the current rotational speed of the vehicle motor is determined based on the driving state and the current rotational speed of the vehicle motor.
In some embodiments, the vehicle gear further includes a vehicle logic gear, and step 1022 specifically includes:
step 10221, a vehicle logical gear is obtained, wherein the vehicle logical gear includes a reverse gear or a forward gear.
Step 10222, in response to the vehicle transmission gear being in gear and the vehicle logic gear being a reverse gear, determining that the vehicle motor state is a reverse drive state, determining a reverse first target torque limit corresponding to the reverse drive state and the current rotational speed of the vehicle motor based on the reverse drive state and the current rotational speed of the vehicle motor.
In specific implementation, the vehicle transmission gear is an even-numbered gear, and in response to the vehicle transmission gear state being an engaged state, i.e., the even-numbered gear being either 1 or 2 (corresponding to 2 or 4 in fig. 2), the vehicle logic gear state is a reverse gear, the vehicle motor state is in a reverse drive state. A reverse first target torque limit corresponding to the reverse drive state and the current rotational speed of the vehicle motor is determined based on the reverse drive state and the current rotational speed of the vehicle motor.
Alternatively, step 10223, in response to the vehicle transmission gear being in gear and the vehicle logic gear being in forward gear, determines the vehicle motor state to be in a forward drive state, and determines a forward first target torque limit corresponding to the forward drive state and the current rotational speed of the vehicle motor based on the forward drive state and the current rotational speed of the vehicle motor.
In specific implementation, the vehicle transmission gear is taken as an even-numbered gear, and the vehicle motor state is in a forward driving state in response to the vehicle transmission gear state being in a gear-engaged state, that is, the even-numbered gear being in 1 gear or 2 gear (corresponding to 2 gear or 4 gear in fig. 2), and the vehicle logic gear state being in a forward gear, a forward first target torque limit corresponding to the forward driving state and the current rotation speed of the vehicle motor is determined based on the forward driving state and the current rotation speed of the vehicle motor.
In some embodiments, determining the reverse first target torque limit in step 10222 specifically includes:
step 102221, based on the reverse driving state, determining that the reverse first target torque limit is positively correlated with the current rotational speed of the vehicle motor in response to the current rotational speed of the vehicle motor being a first reverse rotational speed interval, wherein the first reverse rotational speed interval is the current rotational speed of the vehicle motor being less than zero.
When the vehicle motor state is determined to be the reverse driving state, the current rotating speed interval of the vehicle motor is judged. And responding to the current rotating speed of the vehicle motor to be a first reverse rotating speed interval, wherein the first reverse rotating speed interval is that the current rotating speed of the vehicle motor is smaller than zero, namely the rotating speed of the vehicle motor is a negative rotating speed. The reverse first target torque limit is determined to be positively correlated with a current rotational speed of the vehicle motor. That is, under the condition of reverse driving, the larger the negative rotation speed of the vehicle motor, the larger the reverse first target torque limit value, the smaller the negative rotation speed of the vehicle motor, and the smaller the reverse first target torque limit value.
Illustratively, in a reverse drive state, the vehicle motor has a rotational speed of-1000 rpm, and the reverse first target torque limit is 1000N M; the rotational speed of the vehicle motor is-500 rpm and the reverse first target torque limit is 500n x m.
Or, in step 102222, the reverse first target torque limit is determined to be zero in response to the current rotational speed of the vehicle motor being a second reverse rotational speed interval based on the reverse driving state, wherein the second reverse rotational speed interval is the current rotational speed of the vehicle being greater than or equal to zero.
And in specific implementation, judging that the current rotating speed of the motor of the vehicle is a second reverse rotating speed interval, wherein the second reverse rotating speed interval is that the current rotating speed of the vehicle is greater than or equal to zero, and determining that the reverse first target torque limit value is zero.
Illustratively, in the reverse drive state, the rotational speed of the vehicle motor is 0rpm, and the reverse first target torque limit is 0N M; the rotational speed of the vehicle motor is 100rpm and the reverse first target torque limit is 0n x m.
According to the scheme, the reverse first target torque limit value is determined according to the current rotating speed interval of the vehicle motor in the reverse driving state, the determination of the reverse first target torque limit value is more accurate, and the reverse first target torque limit value is more in line with the working condition of reverse driving of the current vehicle motor.
In some embodiments, determining the forward first target torque limit in step 10223 specifically includes:
step 102231, determining that the forward first target torque limit is positively correlated with the current rotational speed of the vehicle motor in response to the current rotational speed of the vehicle motor being a first forward speed interval based on the forward driving state, wherein the first forward speed interval is the current rotational speed of the vehicle motor being greater than zero.
When the vehicle motor state is determined to be the forward driving state, the current rotating speed interval of the vehicle motor is judged. And responding to the current rotating speed of the vehicle motor to be a first positive rotating speed interval, wherein the first positive rotating speed interval is that the current rotating speed of the vehicle motor is larger than zero, namely the rotating speed of the vehicle motor is positive rotating speed. Determining that the forward first target torque limit value is positively correlated with the current rotational speed of the vehicle motor, i.e., the greater the positive rotational speed of the vehicle motor, the greater the forward first target torque limit value; the smaller the positive rotational speed of the vehicle motor, the smaller the positive first target torque limit.
Illustratively, in the forward drive state, the rotational speed of the vehicle motor is 1000rpm and the forward first target torque limit is-1000N M; the rotational speed of the vehicle motor is 500rpm and the forward first target torque limit is-500 n x m.
Or, in step 102232, the forward first target torque limit is determined to be zero based on the forward driving state in response to the current rotational speed of the vehicle motor being a second forward rotational speed interval, wherein the second forward rotational speed interval is the current rotational speed of the vehicle being equal to or less than zero.
And in specific implementation, judging that the current rotating speed of the motor of the vehicle is a second positive rotating speed interval, wherein the second positive rotating speed interval is that the current rotating speed of the vehicle is smaller than or equal to zero, and determining that the positive first target torque limit value is zero.
Illustratively, in the forward drive state, the rotational speed of the vehicle motor is 0rpm and the forward first target torque limit is 0N M; the rotational speed of the vehicle motor is 100rpm and the forward first target torque limit is 0n x m.
According to the scheme, under the forward driving state, the forward first target torque limit value is determined according to the current rotating speed interval of the vehicle motor, and the determination of the forward first target torque limit value is more accurate and more accords with the working condition of forward driving of the current vehicle motor.
In some embodiments, step 102 specifically further comprises:
step 102A, a vehicle transmission gear is obtained.
In step 102B, the vehicle motor state is in a series state in response to the vehicle transmission gear being out of gear.
In particular, in response to the vehicle transmission gear being out of gear, the vehicle transmission gear is disconnected from the vehicle motor, the vehicle motor is in series with the vehicle engine, and the vehicle motor state is in series.
Step 102C, determining a second target torque limit corresponding to the series state and the current rotational speed of the vehicle motor based on the series state and the current rotational speed of the vehicle motor.
In specific implementation, the motor state determined in the above steps is a series state, and the corresponding second target torque limit value is determined based on the series state and the current rotation speed of the motor of the vehicle.
In some embodiments, step 102C specifically includes:
step 102C1, based on the serial state, determining a current rotation speed interval corresponding to the vehicle motor according to the current rotation speed of the vehicle motor, and determining a second target torque limit corresponding to the current rotation speed interval according to the current rotation speed interval.
When the vehicle motor state is determined to be the series state, the current rotating speed interval of the vehicle motor is determined according to the current rotating speed of the vehicle motor. And determining a second target torque limit value corresponding to the current rotating speed interval according to the determined current rotating speed interval.
In some embodiments, step 102C1 specifically includes:
determining the second target torque limit as a first threshold in response to the current speed interval of the vehicle motor being a first speed interval, wherein the first speed interval is when the current speed of the vehicle motor is greater than a first positive speed; or,
Determining that the second target torque limit value is decremented from a first threshold value to a second threshold value in response to the current speed interval of the vehicle motor being a second speed interval, wherein the second speed interval is the current speed of the vehicle motor between a first positive speed and zero; or,
determining that the second target torque limit value is decremented from a second threshold value to a third threshold value in response to the current speed interval of the vehicle motor being a third speed interval, wherein the third speed interval is between zero and a first negative speed of the vehicle motor; or,
determining that the second target torque limit is decremented from a third threshold value to zero in response to the current speed interval of the vehicle motor being a fourth speed interval, wherein the fourth speed interval is where the current speed of the vehicle motor is between a first negative speed and a second negative speed; or,
and determining that the second target torque limit value is zero in response to the current speed interval of the vehicle motor being a fifth speed interval, wherein the fifth speed interval is when the current speed of the vehicle motor is less than a second negative speed.
In specific implementation, the first positive rotation speed is 100rpm, the first negative rotation speed is-50 rpm, the second negative rotation speed is-100 rpm, the first threshold is-300 NM, the second threshold is-100 NM, and the third threshold is-5 NM. I.e. the vehicle motor speed is greater than 100rpm, said second target torque limit is-300 NM; the second target torque limit value is decremented from-300 NM to-100 NM when the vehicle motor rotation speed is between 100rpm and 0 rpm; the second target torque limit value is decremented from-100 NM to-5 NM when the vehicle motor rotation speed is between 0rpm and-50 rpm; the second target torque limit value is decremented from-5 NM to 0NM when the vehicle motor rotation speed is between-50 rpm and-100 rpm; when the vehicle motor rotation speed is less than-100 rpm, the second target torque limit value is 0NM.
In some embodiments, the determining a target torque limit corresponding to the vehicle motor status and the current rotational speed of the vehicle motor in step 102 based on the vehicle motor status and the current rotational speed of the vehicle motor specifically includes:
step 102a, a pre-constructed relation library is obtained, wherein the relation library comprises torque limit values corresponding to the states of all vehicle motors and the rotational speeds of all vehicle motors.
In specific implementation, a pre-constructed relation library is obtained, wherein the relation library comprises torque limit values corresponding to the states of all vehicle motors and the rotational speeds of all vehicle motors. For example, the correspondence form of the vehicle motor state, the vehicle motor speed and the torque limit value in the relation library may be at least one of the following: the relation table, the function relation, the curve relation and the histogram relation are not particularly limited.
Step 102b, retrieving a target torque limit value corresponding to the vehicle motor state and the current rotational speed of the vehicle motor from the relational database based on the vehicle motor state and the current rotational speed of the vehicle motor.
And in the implementation, according to the state of the vehicle motor and the current rotating speed of the vehicle motor, the corresponding target torque limit value is called from the relation library.
It should be noted that the method of the embodiments of the present disclosure may be performed by a single device, such as a computer or a server. The method of the embodiment can also be applied to a distributed scene, and is completed by mutually matching a plurality of devices. In the case of such a distributed scenario, one of the devices may perform only one or more steps of the methods of embodiments of the present disclosure, the devices interacting with each other to accomplish the methods.
It should be noted that the foregoing describes some embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments described above and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
Based on the same inventive concept, the present disclosure also provides a vehicle motor control device corresponding to the method of any embodiment described above.
Referring to fig. 4, fig. 4 is a vehicle motor control apparatus of an embodiment, including:
an information acquisition module 401 configured to acquire a vehicle gear state, and a current rotational speed of a vehicle motor, wherein the vehicle motor is disposed inside a vehicle transmission;
a torque limit determination module 402 configured to determine a vehicle motor state from the vehicle gear state, determine a target torque limit corresponding to the vehicle motor state and a current rotational speed of the vehicle motor based on the vehicle motor state and the current rotational speed of the vehicle motor;
a motor control module 403 configured to control the vehicle motor to operate within a torque limit corresponding to the target torque limit.
In some embodiments, the vehicle gear comprises a vehicle transmission gear, and the torque limit determination module 402 specifically comprises:
a first transmission gear acquisition unit configured to acquire a vehicle transmission gear, wherein the vehicle transmission gear is connected to the vehicle motor;
a first torque limit determination unit configured to determine the vehicle motor state as a driving state in response to the vehicle transmission gear being in gear, and determine a first target torque limit corresponding to the driving state and the current rotational speed of the vehicle motor based on the driving state and the current rotational speed of the vehicle motor.
In some embodiments, the vehicle gear further includes a vehicle logic gear, and the first torque limit determination unit specifically includes:
a logical gear acquisition subunit configured to acquire a vehicle logical gear, wherein the vehicle logical gear includes a reverse gear or a forward gear;
a reverse first torque limit determination subunit configured to determine that the vehicle motor state is a reverse drive state in response to the vehicle transmission gear being an engaged gear and the vehicle logical gear being a reverse gear, determine a reverse first target torque limit corresponding to the reverse drive state and a current rotational speed of the vehicle motor based on the reverse drive state and the current rotational speed of the vehicle motor;
a forward first torque limit determination subunit configured to determine that the vehicle motor state is a forward drive state in response to the vehicle transmission gear being in gear and the vehicle logical gear being in forward gear, and to determine a forward first target torque limit corresponding to the forward drive state and the current rotational speed of the vehicle motor based on the forward drive state and the current rotational speed of the vehicle motor.
In some embodiments, the reverse first torque limit determination subunit is specifically configured to determine, based on the reverse driving state, that the reverse first target torque limit is positively correlated with the current rotational speed of the vehicle motor in response to the current rotational speed of the vehicle motor being a first reverse rotational speed interval, wherein the first reverse rotational speed interval is the current rotational speed of the vehicle motor being less than zero; or,
And based on the reverse driving state, determining that the reverse first target torque limit value is zero in response to the current rotation speed of the vehicle motor being a second reverse rotation speed interval, wherein the second reverse rotation speed interval is that the current rotation speed of the vehicle is greater than or equal to zero.
In some embodiments, the forward first torque limit determination subunit is specifically configured to determine, based on the forward driving state, that the forward first target torque limit is positively correlated with the current rotational speed of the vehicle motor in response to the current rotational speed of the vehicle motor being a first forward rotational speed interval, wherein the first forward rotational speed interval is the current rotational speed of the vehicle motor being greater than zero; or,
and based on the forward driving state, determining that the forward first target torque limit value is zero in response to the current rotational speed of the vehicle motor being a second forward rotational speed interval, wherein the second forward rotational speed interval is zero or less of the current rotational speed of the vehicle.
In some embodiments, the torque limit determination module 402 specifically further includes:
a second transmission gear acquisition unit configured to acquire a vehicle transmission gear;
a state determination unit configured to respond to the vehicle transmission gear being an un-engaged state, the vehicle motor state being a series state;
A second torque limit value determination unit configured to determine a second target torque limit value corresponding to the series state and the current rotation speed of the vehicle motor based on the series state and the current rotation speed of the vehicle motor.
In some embodiments, the second torque limit determination unit specifically includes:
and the rotating speed interval judging subunit is configured to judge a current rotating speed interval corresponding to the vehicle motor according to the current rotating speed of the vehicle motor based on the serial state, and determine a second target torque limit value corresponding to the current rotating speed interval according to the current rotating speed interval.
In some embodiments, the rotation speed interval determination subunit is specifically configured to:
determining the second target torque limit as a first threshold in response to the current speed interval of the vehicle motor being a first speed interval, wherein the first speed interval is when the current speed of the vehicle motor is greater than a first positive speed; or,
determining that the second target torque limit value is decremented from a first threshold value to a second threshold value in response to the current speed interval of the vehicle motor being a second speed interval, wherein the second speed interval is the current speed of the vehicle motor between a first positive speed and zero; or,
Determining that the second target torque limit value is decremented from a second threshold value to a third threshold value in response to the current speed interval of the vehicle motor being a third speed interval, wherein the third speed interval is between zero and a first negative speed of the vehicle motor; or,
determining that the second target torque limit is decremented from a third threshold value to zero in response to the current speed interval of the vehicle motor being a fourth speed interval, wherein the fourth speed interval is where the current speed of the vehicle motor is between a first negative speed and a second negative speed; or,
and determining that the second target torque limit value is zero in response to the current speed interval of the vehicle motor being a fifth speed interval, wherein the fifth speed interval is when the current speed of the vehicle motor is less than a second negative speed.
In some embodiments, the torque limit determination module 402 specifically further includes:
a relation library acquisition unit configured to acquire a relation library constructed in advance, wherein the relation library comprises torque limit values corresponding to any vehicle motor state and any vehicle motor rotating speed;
a torque limit value retrieving unit configured to retrieve a target torque limit value corresponding to the vehicle motor state and the current rotation speed of the vehicle motor from the database based on the vehicle motor state and the current rotation speed of the vehicle motor.
For convenience of description, the above devices are described as being functionally divided into various modules, respectively. Of course, the functions of the various modules may be implemented in the same one or more pieces of software and/or hardware when implementing the present disclosure.
The device of the foregoing embodiment is used to implement the corresponding vehicle motor control method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiment, which is not described herein.
Based on the same inventive concept, the present disclosure also provides an electronic device corresponding to the method of any embodiment, including a memory, a processor, and a computer program stored on the memory and capable of running on the processor, where the processor implements the method of controlling a vehicle motor according to any embodiment when executing the program.
Fig. 5 shows a more specific hardware architecture of an electronic device according to this embodiment, where the device may include: a processor 1010, a memory 1020, an input/output interface 1030, a communication interface 1040, and a bus 1050. Wherein processor 1010, memory 1020, input/output interface 1030, and communication interface 1040 implement communication connections therebetween within the device via a bus 1050.
The processor 1010 may be implemented by a general-purpose CPU (Central Processing Unit ), microprocessor, application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits, etc. for executing relevant programs to implement the technical solutions provided in the embodiments of the present disclosure.
The Memory 1020 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory ), static storage device, dynamic storage device, or the like. Memory 1020 may store an operating system and other application programs, and when the embodiments of the present specification are implemented in software or firmware, the associated program code is stored in memory 1020 and executed by processor 1010.
The input/output interface 1030 is used to connect with an input/output module for inputting and outputting information. The input/output module may be configured as a component in a device (not shown) or may be external to the device to provide corresponding functionality. Wherein the input devices may include a keyboard, mouse, touch screen, microphone, various types of sensors, etc., and the output devices may include a display, speaker, vibrator, indicator lights, etc.
Communication interface 1040 is used to connect communication modules (not shown) to enable communication interactions of the present device with other devices. The communication module may implement communication through a wired manner (such as USB, network cable, etc.), or may implement communication through a wireless manner (such as mobile network, WIFI, bluetooth, etc.).
Bus 1050 includes a path for transferring information between components of the device (e.g., processor 1010, memory 1020, input/output interface 1030, and communication interface 1040).
It should be noted that although the above-described device only shows processor 1010, memory 1020, input/output interface 1030, communication interface 1040, and bus 1050, in an implementation, the device may include other components necessary to achieve proper operation. Furthermore, it will be understood by those skilled in the art that the above-described apparatus may include only the components necessary to implement the embodiments of the present description, and not all the components shown in the drawings.
The electronic device of the foregoing embodiment is configured to implement the corresponding vehicle motor control method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiment, which is not described herein.
Based on the same inventive concept, the present disclosure also provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to perform the vehicle motor control method according to any of the above embodiments, corresponding to any of the above embodiments.
The computer readable media of the present embodiments, including both permanent and non-permanent, removable and non-removable media, may be used to implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device.
The storage medium of the above embodiment stores computer instructions for causing the computer to execute the vehicle motor control method according to any one of the above embodiments, and has the advantages of the corresponding method embodiments, which are not described herein.
Based on the same inventive concept, the application also provides a vehicle corresponding to the method of any embodiment, which comprises the vehicle motor control device in the embodiment, the electronic equipment, and the vehicle equipment, wherein the vehicle equipment realizes the vehicle motor control method of any embodiment.
The vehicle of the foregoing embodiments is used to implement the vehicle motor control method of any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which are not described herein.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the disclosure, including the claims, is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined under the idea of the present disclosure, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present disclosure as described above, which are not provided in details for the sake of brevity.
Additionally, well-known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures, in order to simplify the illustration and discussion, and so as not to obscure the embodiments of the present disclosure. Furthermore, the devices may be shown in block diagram form in order to avoid obscuring the embodiments of the present disclosure, and this also accounts for the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform on which the embodiments of the present disclosure are to be implemented (i.e., such specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the disclosure, it should be apparent to one skilled in the art that embodiments of the disclosure can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative in nature and not as restrictive.
While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of those embodiments will be apparent to those skilled in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.
The disclosed embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Accordingly, any omissions, modifications, equivalents, improvements, and the like, which are within the spirit and principles of the embodiments of the disclosure, are intended to be included within the scope of the disclosure.
Claims (11)
1. A vehicle motor control method characterized by comprising:
acquiring a vehicle gear state and the current rotating speed of a vehicle motor, wherein the vehicle motor is arranged in a vehicle gearbox;
determining a vehicle motor state according to the vehicle gear state, and determining a target torque limit value corresponding to the vehicle motor state and the current rotation speed of the vehicle motor based on the vehicle motor state and the current rotation speed of the vehicle motor;
and controlling the vehicle motor to run in a torque limiting range corresponding to the target torque limit value.
2. The method of claim 1, wherein the vehicle gear comprises a vehicle transmission gear;
the determining a vehicle motor state according to the vehicle gear state, determining a target torque limit corresponding to the vehicle motor state and the current rotational speed of the vehicle motor based on the vehicle motor state and the current rotational speed of the vehicle motor, comprising:
Acquiring a vehicle transmission gear, wherein the vehicle transmission gear is connected with the vehicle motor;
in response to the vehicle transmission gear being in gear, determining the vehicle motor state as a driving state, determining a first target torque limit corresponding to the driving state and a current rotational speed of the vehicle motor based on the driving state and the current rotational speed of the vehicle motor.
3. The method of claim 2, wherein the vehicle gear further comprises a vehicle logic gear;
the determining, in response to the vehicle transmission gear being in gear, the vehicle motor state as a driving state, determining a first target torque limit corresponding to the driving state and a current rotational speed of the vehicle motor based on the driving state and the current rotational speed of the vehicle motor, comprising:
acquiring a vehicle logic gear, wherein the vehicle logic gear comprises a reverse gear or a forward gear;
determining that the vehicle motor state is a reverse drive state in response to the vehicle transmission gear being an in-gear and the vehicle logic gear being a reverse gear, determining a reverse first target torque limit corresponding to the reverse drive state and the current rotational speed of the vehicle motor based on the reverse drive state and the current rotational speed of the vehicle motor; or,
And determining that the vehicle motor state is a forward driving state in response to the vehicle transmission gear being an in-gear and the vehicle logic gear being a forward gear, and determining a forward first target torque limit corresponding to the forward driving state and the current rotational speed of the vehicle motor based on the forward driving state and the current rotational speed of the vehicle motor.
4. The method of claim 3, wherein the determining a reverse first target torque limit corresponding to the reverse drive state and the current rotational speed of the vehicle motor based on the reverse drive state and the current rotational speed of the vehicle motor comprises:
based on the reverse driving state, determining that the reverse first target torque limit value is positively correlated with the current rotational speed of the vehicle motor in response to the current rotational speed of the vehicle motor being a first reverse rotational speed interval, wherein the first reverse rotational speed interval is the current rotational speed of the vehicle motor being less than zero; or,
and based on the reverse driving state, determining that the reverse first target torque limit value is zero in response to the current rotation speed of the vehicle motor being a second reverse rotation speed interval, wherein the second reverse rotation speed interval is that the current rotation speed of the vehicle is greater than or equal to zero.
5. The method of claim 3, wherein the determining a forward first target torque limit corresponding to the forward drive state and the current rotational speed of the vehicle motor based on the forward drive state and the current rotational speed of the vehicle motor comprises:
based on the forward driving state, determining that the forward first target torque limit is positively correlated with the current rotational speed of the vehicle motor in response to the current rotational speed of the vehicle motor being a first forward rotational speed interval, wherein the first forward rotational speed interval is the current rotational speed of the vehicle motor being greater than zero; or,
and based on the forward driving state, determining that the forward first target torque limit value is zero in response to the current rotational speed of the vehicle motor being a second forward rotational speed interval, wherein the second forward rotational speed interval is zero or less of the current rotational speed of the vehicle.
6. The method of claim 2, wherein determining a vehicle motor state from the vehicle gear state, determining a target torque limit corresponding to the vehicle motor state and the current rotational speed of the vehicle motor based on the vehicle motor state and the current rotational speed of the vehicle motor, comprises:
Acquiring a gear of a vehicle transmission;
in response to the vehicle transmission gear being not engaged, the vehicle motor state is a series state;
a second target torque limit corresponding to the series state and the current rotational speed of the vehicle motor is determined based on the series state and the current rotational speed of the vehicle motor.
7. The method of claim 6, wherein the determining a second target torque limit corresponding to the series state and the current rotational speed of the vehicle motor based on the series state and the current rotational speed of the vehicle motor comprises:
and judging a current rotating speed interval corresponding to the vehicle motor according to the current rotating speed of the vehicle motor based on the serial state, and determining a second target torque limit value corresponding to the current rotating speed interval according to the current rotating speed interval.
8. The method of claim 7, wherein the determining a current speed interval corresponding to the vehicle motor based on the current speed of the vehicle motor, and determining a second target torque limit corresponding to the current speed interval based on the current speed interval, comprises:
determining the second target torque limit as a first threshold in response to the current speed interval of the vehicle motor being a first speed interval, wherein the first speed interval is when the current speed of the vehicle motor is greater than a first positive speed; or,
Determining that the second target torque limit value is decremented from a first threshold value to a second threshold value in response to the current speed interval of the vehicle motor being a second speed interval, wherein the second speed interval is the current speed of the vehicle motor between a first positive speed and zero; or,
determining that the second target torque limit value is decremented from a second threshold value to a third threshold value in response to the current speed interval of the vehicle motor being a third speed interval, wherein the third speed interval is between zero and a first negative speed of the vehicle motor; or,
determining that the second target torque limit is decremented from a third threshold value to zero in response to the current speed interval of the vehicle motor being a fourth speed interval, wherein the fourth speed interval is where the current speed of the vehicle motor is between a first negative speed and a second negative speed; or,
and determining that the second target torque limit value is zero in response to the current speed interval of the vehicle motor being a fifth speed interval, wherein the fifth speed interval is when the current speed of the vehicle motor is less than a second negative speed.
9. The method of claim 1, wherein the determining a target torque limit corresponding to the vehicle motor state and the current rotational speed of the vehicle motor based on the vehicle motor state and the current rotational speed of the vehicle motor comprises:
Obtaining a pre-constructed relation library, wherein the relation library comprises torque limit values corresponding to the states of all vehicle motors and the rotational speeds of all vehicle motors;
and based on the vehicle motor state and the current rotating speed of the vehicle motor, retrieving a target torque limit value corresponding to the vehicle motor state and the current rotating speed of the vehicle motor from the relation library.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the vehicle motor control method according to any one of claims 1 to 9 when the program is executed.
11. A vehicle comprising the electronic device of claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310483963.0A CN116811835A (en) | 2023-04-28 | 2023-04-28 | Vehicle motor control method and device and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310483963.0A CN116811835A (en) | 2023-04-28 | 2023-04-28 | Vehicle motor control method and device and vehicle |
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| CN116811835A true CN116811835A (en) | 2023-09-29 |
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| CN202310483963.0A Pending CN116811835A (en) | 2023-04-28 | 2023-04-28 | Vehicle motor control method and device and vehicle |
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| Country | Link |
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| CN (1) | CN116811835A (en) |
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- 2023-04-28 CN CN202310483963.0A patent/CN116811835A/en active Pending
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