CN110949141A - Vehicle motor control method, device, equipment and storage medium - Google Patents

Vehicle motor control method, device, equipment and storage medium Download PDF

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Publication number
CN110949141A
CN110949141A CN201911217198.8A CN201911217198A CN110949141A CN 110949141 A CN110949141 A CN 110949141A CN 201911217198 A CN201911217198 A CN 201911217198A CN 110949141 A CN110949141 A CN 110949141A
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China
Prior art keywords
vehicle
automatic
stop
state
motor
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CN201911217198.8A
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CN110949141B (en
Inventor
朱成
马培义
王烨
王祺明
徐瑞雪
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Anhui Jianghuai Automobile Group Corp
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Anhui Jianghuai Automobile Group Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2045—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for optimising the use of energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses a vehicle motor control method, a vehicle motor control device, vehicle motor control equipment and a storage medium, and belongs to the technical field of motor control. The automatic transmission control method and the automatic transmission control system receive an automatic stop function starting instruction sent by an automatic transmission controller of a target vehicle, send a stop request to the automatic transmission controller according to the automatic stop function starting instruction, enable the automatic transmission controller to feed back a stop permission signal, receive the stop permission signal fed back by the automatic transmission controller, adjust the current state of a motor of the target vehicle to be a stop state according to the stop permission signal, and control the motor to stop through the interaction request cooperation with the automatic transmission controller, so that the accuracy of motor control is improved, and meanwhile, the electric quantity consumption of the vehicle is reduced.

Description

Vehicle motor control method, device, equipment and storage medium
Technical Field
The invention relates to the technical field of motor control, in particular to a vehicle motor control method, device, equipment and storage medium.
Background
Under the conditions of red traffic lights and traffic jams, automobiles cannot walk, most automobiles can only wait at idle speed, fuel oil is wasted, meanwhile, the abrasion of an engine is large, the automobile engine can automatically stop working under the idle speed condition through an automatic engine starting and stopping technology to stop supplying fuel oil to the engine so as to save the fuel oil, the hybrid automobile comprises the engine, a motor and a gearbox, the power source of the whole automobile cannot be completely closed through the automatic engine starting and stopping technology, the motor is still in a running state under certain working conditions, and the electric quantity of a battery of the hybrid automobile is wasted.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a vehicle motor control method, and aims to solve the technical problem that the electric quantity consumption of a vehicle cannot be effectively reduced in the prior art.
To achieve the above object, the present invention provides a vehicle motor control method, including the steps of:
receiving an automatic shutdown function starting instruction sent by an automatic gearbox controller of a target vehicle;
sending a shutdown request to the automatic gearbox controller according to the automatic shutdown function starting instruction so that the automatic gearbox controller feeds back a shutdown allowing signal;
receiving a shutdown allowing signal fed back by the automatic gearbox controller;
and adjusting the current state of the motor of the target vehicle to a stop state according to the stop permission signal.
Preferably, before the step of receiving an automatic stop function start instruction sent by an automatic transmission controller of a target vehicle, the method further includes:
detecting the driving condition in real time;
and when the driving working condition accords with a preset working condition, receiving an automatic stop function starting instruction sent by an automatic gearbox controller of the target vehicle.
Preferably, the step of sending a stop request to the automatic transmission controller according to the automatic stop function start instruction so that the automatic transmission controller feeds back a stop permission signal specifically includes:
and sending a stop request to the automatic gearbox controller according to the automatic stop function starting instruction so as to enable the automatic gearbox controller to detect the state of the gearbox, and feeding back a stop-allowing signal when the state of the gearbox meets a preset stop condition.
Preferably, the step of receiving a stop permission signal fed back by the automatic transmission controller specifically includes:
and receiving a stop permission signal fed back by the automatic gearbox according to the position of the gear shift lever and the gear shift fork corresponding to the state of the gearbox.
Preferably, the step of adjusting the current state of the motor of the target vehicle to the stop state according to the stop permission signal specifically includes:
acquiring the current rotating speed of a motor of the target vehicle;
and adjusting the current rotating speed of the motor of the target vehicle according to the stop permission signal so as to switch the current state of the motor to a stop state.
Preferably, after the step of adjusting the current state of the motor of the target vehicle to the stop state according to the stop permission signal, the method further includes:
and receiving a starting request sent by the automatic gearbox, acquiring the current rotating speed of the motor or acquiring the vehicle state of the target vehicle according to the starting request, and acquiring the current rotating speed of the motor when the vehicle state meets a preset state.
Preferably, the receiving a start request sent by the automatic transmission, obtaining a current rotation speed of the motor or obtaining a vehicle state of the target vehicle according to the start request, and after the step of obtaining the current rotation speed of the motor when the vehicle state meets a preset state, further includes:
and when the current rotating speed is greater than a preset rotating speed threshold value, restarting the motor, and switching the current state of the motor into a running state.
Further, to achieve the above object, the present invention also proposes a vehicle motor control device including:
the receiving module is used for receiving an automatic shutdown function starting instruction sent by an automatic gearbox controller of a target vehicle;
the sending module is used for sending a stop request to the automatic gearbox controller according to the automatic stop function starting instruction so as to enable the automatic gearbox controller to feed back a stop permission signal;
the feedback module is used for receiving a stop permission signal fed back by the automatic gearbox controller;
and the shutdown module is used for adjusting the current state of the motor of the target vehicle to a shutdown state according to the shutdown permission signal.
Further, to achieve the above object, the present invention also proposes a vehicle motor control apparatus including: a memory, a processor and a vehicle motor control program stored on the memory and executable on the processor, the vehicle motor control program being configured to implement the steps of the vehicle motor control method as described above.
Furthermore, to achieve the above object, the present invention also proposes a storage medium having stored thereon a vehicle motor control program that, when executed by a processor, implements the steps of the vehicle motor control method as described above.
The automatic transmission control method and the automatic transmission control system receive an automatic stop function starting instruction sent by an automatic transmission controller of a target vehicle, send a stop request to the automatic transmission controller according to the automatic stop function starting instruction, enable the automatic transmission controller to feed back a stop permission signal, receive the stop permission signal fed back by the automatic transmission controller, adjust the current state of a motor of the target vehicle to be a stop state according to the stop permission signal, and control the motor to stop through the interaction request cooperation with the automatic transmission controller, so that the accuracy of motor control is improved, and meanwhile, the electric quantity consumption of the vehicle is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an electronic device in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a first embodiment of a motor control method for a vehicle according to the present invention;
FIG. 3 is a flowchart illustrating a second embodiment of a motor control method for a vehicle according to the present invention;
FIG. 4 is a flowchart illustrating a motor control method for a vehicle according to a third embodiment of the present invention;
fig. 5 is a block diagram showing the configuration of the first embodiment of the motor control device for a vehicle of the invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle motor control apparatus in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the electronic device may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the electronic device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a storage medium, may include therein an operating system, a network communication module, a user interface module, and a vehicle motor control program.
In the vehicle motor control apparatus shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the electronic device of the present invention may be provided in the vehicle motor control device, which calls the vehicle motor control program stored in the memory 1005 through the processor 1001 and executes the vehicle motor control method provided by the embodiment of the present invention.
An embodiment of the present invention provides a vehicle motor control method, and referring to fig. 2, fig. 2 is a flowchart illustrating a first embodiment of a vehicle motor control method according to the present invention.
In this embodiment, the vehicle motor control method includes the steps of:
step S10: and receiving an automatic shutdown function starting instruction sent by an automatic gearbox controller of the target vehicle.
It should be noted that, the execution main body of this embodiment is a vehicle control unit, start-stop control of the motor is realized through cooperation between the vehicle control unit on the target vehicle and the automatic transmission control, the automatic transmission controller is used for sending an automatic stop function start instruction, and the vehicle control unit starts the automatic stop function of the target vehicle by receiving the automatic stop function start instruction sent by the automatic transmission controller.
In this embodiment, the automatic stop function of the target vehicle may not be started under any condition, and a certain condition needs to be met, so that before the vehicle controller starts the automatic stop function of the target vehicle (that is, before the vehicle controller receives the start instruction of the automatic stop function sent by the automatic transmission), the driving condition of the target vehicle needs to be detected, when the driving condition of the target vehicle meets the preset condition, the vehicle controller receives the start instruction of the automatic stop function sent by the automatic transmission controller, for example, if the electronic parking brake system of the vehicle is activated, the automatic parking system is activated, and the vehicle is braked during low-gear or reverse gear deceleration running, the vehicle controller receives the start instruction of the automatic stop function sent by the automatic transmission controller, and if the temperature of the transmission is outside the limit range, and the rotation speed of the output shaft is higher than the limit, the vehicle controller receives the start instruction of, And if the expected cooling flow is higher than the limit value and the shifting fork is shifted to be in control states such as gear engagement, gear disengagement or failure, the automatic transmission controller does not send an automatic stop function starting instruction to the vehicle control unit, for example, if the acquired transmission temperature of the target vehicle is 120 ℃ and the preset transmission temperature is 110 ℃, the transmission temperature of the target vehicle is greater than the preset transmission temperature according to comparison, so that the automatic transmission controller does not send the automatic stop function starting instruction to the vehicle control unit.
Step S20: and sending a stop request to the automatic gearbox controller according to the automatic stop function starting instruction so as to enable the automatic gearbox controller to feed back a stop permission signal.
It should be noted that, when receiving an automatic stop function start instruction sent by the automatic transmission controller, the vehicle controller may detect a vehicle state of the target vehicle, for example, detect a battery level or an operating speed of the target vehicle, and determine, by detecting the vehicle state of the target vehicle, whether an actual vehicle state meets a requirement for stopping the motor when the automatic stop function of the target vehicle is turned on, when detecting that the vehicle state meets a condition, the vehicle controller sends a stop request to the automatic transmission controller according to the automatic stop function start instruction, and when receiving the stop request sent by the vehicle controller, the automatic transmission controller feeds back a stop permission signal to the vehicle controller.
Step S30: and receiving a stop permission signal fed back by the automatic gearbox controller.
Step S40: and adjusting the current state of the motor of the target vehicle to a stop state according to the stop permission signal.
In this embodiment, after multiple request interactions between the vehicle control unit and the automatic transmission controller, the automatic transmission controller may feed back a stop permission signal, and the vehicle control unit receives the stop permission signal fed back by the automatic transmission controller and adjusts the current state of the target vehicle to a stop state according to the stop permission signal, that is, the vehicle control unit controls the motor of the target vehicle to stop, so as to complete the whole motor stop process.
In addition, the process of adjusting the current state of the motor of the target vehicle to the stopped state is specifically to obtain the current rotation speed of the target vehicle, and adjust the current rotation speed of the target vehicle according to the stop permission signal, where the adjustment includes reducing the current rotation speed of the target vehicle to a preset rotation speed threshold, where the preset rotation speed threshold is 0RPM or 0.5RPM, and the present embodiment is not limited, where the preset rotation speed threshold is preferably 0RPM in the present embodiment, and when the preset rotation speed threshold is 0RPM, the power consumption of the battery of the target vehicle is lowest, and when the current rotation speed is less than or equal to the preset rotation speed threshold, it is determined that the current state of the motor is the stopped state, for example, the current rotation speed of the motor of the target vehicle is obtained to be 2000RPM, the vehicle controller reduces the current rotation speed of the motor to 0RPM according to the stop permission signal, and it is assumed that the preset rotation speed threshold, the current state of the motor is determined as a stopped state.
In the embodiment, the automatic stop function starting instruction sent by the automatic gearbox controller of the target vehicle is received, the stop request is sent to the automatic gearbox controller according to the automatic stop function starting instruction, so that the automatic gearbox controller feeds back the stop permission signal, the stop permission signal fed back by the automatic gearbox controller is received, the current state of the motor of the target vehicle is adjusted to be the stop state according to the stop permission signal, the motor is controlled to stop through the interaction request matching with the automatic gearbox controller, the accuracy of motor control is improved, and meanwhile, the electric quantity consumption of the vehicle is reduced.
Referring to fig. 3, fig. 3 is a flowchart illustrating a vehicle motor control method according to a second embodiment of the present invention.
Based on the first embodiment, the step S20 specifically includes:
step S201: and sending a stop request to the automatic gearbox controller according to the automatic stop function starting instruction so as to enable the automatic gearbox controller to detect the state of the gearbox, and feeding back a stop-allowing signal when the state of the gearbox meets a preset stop condition.
It should be noted that the vehicle control unit sends a shutdown request to the automatic transmission control, the automatic transmission controller needs to detect the state of the transmission when receiving the shutdown request, when the state of the transmission meets a preset shutdown condition, the automatic transmission controller feeds back a shutdown allowing signal to the vehicle control unit, the preset shutdown condition can be understood as that the state of the transmission is a normal operation state, if the state of the transmission is an oil leakage state, a water inlet state, an abnormal sound state, a gear locking protection state or the like, the state of the transmission is determined to be an abnormal operation state, and when the state of the transmission is an abnormal operation state, the transmission controller does not feed back a shutdown allowing signal.
Further, the step S30 specifically includes:
step S301: and receiving a stop permission signal fed back by the automatic gearbox according to the position of the gear shift lever and the gear shift fork corresponding to the state of the gearbox.
In this embodiment, the vehicle control unit receives the stop permission signal fed back by the automatic transmission controller, the automatic transmission controller performs the stop permission signal according to the shift lever position and the shift fork position corresponding to the transmission state, the shift lever position and the shift fork position include a shift lever and a shift fork lever, the shift lever position includes that the shift lever is in the P gear, the shift lever is in the N gear, the shift lever is in the R gear and the shift fork position is in the R gear or the shift lever is in the D gear and the shift fork position is the low gear, etc., the low gear is 1 gear or 2 gears, it is easy to understand that, the automatic transmission controller feeds back the stop permission signal to the vehicle control unit when the shift lever position and the shift fork position are in the above positions.
This embodiment is through to automatic transmission controller sends the shut down request to make automatic transmission controller feel position and shift fork gear according to shifting that the gearbox state corresponds, the feedback allows the shut down signal, has improved the accuracy of motor shutdown control.
Referring to fig. 4, fig. 4 is a flowchart illustrating a method for controlling a motor of a vehicle according to a third embodiment of the present invention.
Based on the first embodiment, after the step S40, the method further includes:
step S401: and receiving a starting request sent by the automatic gearbox, acquiring the current rotating speed of the motor or acquiring the vehicle state of the target vehicle according to the starting request, and acquiring the current rotating speed of the motor when the vehicle state meets a preset state.
In this embodiment, two preconditions exist for acquiring the current rotating speed of the motor, and the vehicle control unit acquires the current rotating speed of the motor when one of the preconditions is satisfied. One of the preconditions is to receive a start request sent by an automatic transmission controller, obtain a current rotating speed of a motor according to the start request, detect the transmission by the automatic transmission controller before sending the start request, for example, detect a current oil temperature in the transmission, and send the start request to the vehicle controller when the current oil temperature is less than a preset oil temperature threshold. Another precondition is that a vehicle state of the target vehicle is obtained, and when the vehicle state meets a preset state, the current rotation speed of the motor is obtained, where the preset state includes a non-braking state of the brake pedal and a preset electric quantity threshold of the battery, for example, when the current electric quantity of the battery is less than 5%, or when the current brake pedal is in the non-braking state, the current rotation speed of the motor is obtained assuming that the preset electric quantity threshold of the battery is 5%.
Further, after the step S401, the method further includes:
step S402: and when the current rotating speed is greater than a preset rotating speed threshold value, restarting the motor, and switching the current state of the motor into a running state.
It is easy to understand that, in consideration of an actual situation, a user needs to restart the motor after the motor is stopped, in this embodiment, the motor in the stopped state is restarted by the vehicle controller, that is, the stopped state of the motor is switched to the operating state, and the condition that the stopped state of the motor is switched to the operating state by the vehicle controller is that the current rotation speed of the motor is greater than a preset rotation speed threshold, which may be 0RPM or 0.5RPM and is set by the vehicle according to the actual situation, which is not limited in this embodiment, for example, the motor in the stopped state is detected in real time, assuming that the current rotation speed of the motor is 200RPM and the preset rotation speed threshold of the motor is 0RPM, it is known from comparison that the current rotation speed of the motor is greater than the preset rotation speed threshold, so that the stopped state of the motor is switched to the operating state.
The motor control method comprises the steps of receiving a starting request sent by an automatic gearbox when the motor is in a shutdown state, obtaining the current rotating speed of the motor or the vehicle state of a target vehicle according to the starting request, obtaining the current rotating speed of the motor when the vehicle state meets a preset state, restarting the motor when the current rotating speed is larger than a preset rotating speed threshold value, switching the current state of the motor into a running state, restarting the motor after the motor, and meanwhile improving the richer motor control functions.
Referring to fig. 5, fig. 5 is a block diagram showing a configuration of a first embodiment of a motor control device for a vehicle according to the present invention.
As shown in fig. 5, a vehicle motor control device according to an embodiment of the present invention includes:
and the receiving module 10 is used for receiving an automatic shutdown function starting instruction sent by an automatic gearbox controller of the target vehicle.
It should be noted that, the execution main body of this embodiment is a vehicle control unit, start-stop control of the motor is realized through cooperation between the vehicle control unit on the target vehicle and the automatic transmission control, the automatic transmission controller is used for sending an automatic stop function start instruction, and the vehicle control unit starts the automatic stop function of the target vehicle by receiving the automatic stop function start instruction sent by the automatic transmission controller.
In this embodiment, the automatic stop function of the target vehicle may not be started under any condition, and a certain condition needs to be met, so that before the vehicle controller starts the automatic stop function of the target vehicle (that is, before the vehicle controller receives the start instruction of the automatic stop function sent by the automatic transmission), the driving condition of the target vehicle needs to be detected, when the driving condition of the target vehicle meets the preset condition, the vehicle controller receives the start instruction of the automatic stop function sent by the automatic transmission controller, for example, if the electronic parking brake system of the vehicle is activated, the automatic parking system is activated, and the vehicle is braked during low-gear or reverse gear deceleration running, the vehicle controller receives the start instruction of the automatic stop function sent by the automatic transmission controller, and if the temperature of the transmission is outside the limit range, and the rotation speed of the output shaft is higher than the limit, the vehicle controller receives the start instruction of, And if the expected cooling flow is higher than the limit value and the shifting fork is shifted to be in control states such as gear engagement, gear disengagement or failure, the automatic transmission controller does not send an automatic stop function starting instruction to the vehicle control unit, for example, if the acquired transmission temperature of the target vehicle is 120 ℃ and the preset transmission temperature is 110 ℃, the transmission temperature of the target vehicle is greater than the preset transmission temperature according to comparison, so that the automatic transmission controller does not send the automatic stop function starting instruction to the vehicle control unit.
And a sending module 20, configured to send a stop request to the automatic transmission controller according to the automatic stop function start instruction, so that the automatic transmission controller feeds back a stop permission signal.
It should be noted that, when receiving an automatic stop function start instruction sent by the automatic transmission controller, the vehicle controller may detect a vehicle state of the target vehicle, for example, detect a battery level or an operating speed of the target vehicle, and determine, by detecting the vehicle state of the target vehicle, whether an actual vehicle state meets a requirement for stopping the motor when the automatic stop function of the target vehicle is turned on, when detecting that the vehicle state meets a condition, the vehicle controller sends a stop request to the automatic transmission controller according to the automatic stop function start instruction, and when receiving the stop request sent by the vehicle controller, the automatic transmission controller feeds back a stop permission signal to the vehicle controller.
And a feedback module 30 for receiving a stop enable signal fed back by the automatic transmission controller.
And the shutdown module 40 is used for adjusting the current state of the motor of the target vehicle to a shutdown state according to the shutdown permission signal.
In this embodiment, after multiple request interactions between the vehicle control unit and the automatic transmission controller, the automatic transmission controller may feed back a stop permission signal, and the vehicle control unit receives the stop permission signal fed back by the automatic transmission controller and adjusts the current state of the target vehicle to a stop state according to the stop permission signal, that is, the vehicle control unit controls the motor of the target vehicle to stop, so as to complete the whole motor stop process.
In addition, the process of adjusting the current state of the motor of the target vehicle to the shutdown state specifically includes acquiring a current rotation speed of the target vehicle, and adjusting the current rotation speed of the target vehicle according to the shutdown permission signal, where the adjustment includes reducing the current rotation speed of the target vehicle to a preset rotation speed threshold, where the preset rotation speed threshold is 0RPM or 0.5RPM, and the present embodiment is not limited, and when the current rotation speed is less than or equal to the preset rotation speed threshold, it is determined that the current state of the motor is the shutdown state, for example, the current rotation speed of the motor of the target vehicle is acquired to be 2000RPM, the vehicle controller reduces the current rotation speed of the motor to 0RPM according to the shutdown permission signal, and assuming that the preset rotation speed threshold is 0.5RPM, it is known from the comparison that the current rotation speed of the motor is less than the preset rotation speed.
In the embodiment, the automatic stop function starting instruction sent by the automatic gearbox controller of the target vehicle is received, the stop request is sent to the automatic gearbox controller according to the automatic stop function starting instruction, so that the automatic gearbox controller feeds back the stop permission signal, the stop permission signal fed back by the automatic gearbox controller is received, the current state of the motor of the target vehicle is adjusted to be the stop state according to the stop permission signal, the motor is controlled to stop through the interaction request matching with the automatic gearbox controller, the accuracy of motor control is improved, and meanwhile, the electric quantity consumption of the vehicle is reduced.
In one embodiment, the system further comprises a detection module for detecting the driving condition in real time; and when the driving working condition accords with a preset working condition, receiving an automatic stop function starting instruction sent by an automatic gearbox controller of the target vehicle.
In an embodiment, the sending module 20 is further configured to send a stop request to the automatic transmission controller according to the automatic stop function starting instruction, so that the automatic transmission controller detects a transmission state, and feeds back a stop-allowing signal when the transmission state meets a preset stop condition.
In an embodiment, the feedback module 30 is further configured to receive a stop permission signal fed back by the automatic transmission according to a shift lever position and a shift fork position corresponding to the transmission state.
In an embodiment, the shutdown module 40 is further configured to obtain a current rotation speed of a motor of the target vehicle; and adjusting the current rotating speed of the motor of the target vehicle according to the stop permission signal so as to switch the current state of the motor to a stop state.
In one embodiment, the control device further comprises an adjusting module, which is used for acquiring a current parameter value of the clutch when the motor is in a stop state; and adjusting the current parameter value to enable the current parameter value to be smaller than a preset parameter threshold value.
In an embodiment, the system further includes a restart module, configured to detect a current rotation speed of the motor in real time, restart the motor when the current rotation speed is greater than a preset rotation speed threshold, and switch a current state of the motor to an operating state.
Furthermore, an embodiment of the present invention also provides a storage medium having a vehicle motor control program stored thereon, where the vehicle motor control program, when executed by a processor, implements the steps of the vehicle motor control method as described above.
It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in a specific application, a person skilled in the art may set the technical solution as needed, and the present invention is not limited thereto.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
In addition, the technical details that are not elaborated in the present embodiment may refer to the vehicle motor control method provided in any embodiment of the present invention, and are not described herein again.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g. Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g. a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A vehicle motor control method, characterized by comprising:
receiving an automatic shutdown function starting instruction sent by an automatic gearbox controller of a target vehicle;
sending a shutdown request to the automatic gearbox controller according to the automatic shutdown function starting instruction so that the automatic gearbox controller feeds back a shutdown allowing signal;
receiving a shutdown allowing signal fed back by the automatic gearbox controller;
and adjusting the current state of the motor of the target vehicle to a stop state according to the stop permission signal.
2. The vehicle motor control method according to claim 1, wherein the step of receiving an automatic stop function start instruction transmitted from an automatic transmission controller of a target vehicle is preceded by:
detecting the driving condition in real time;
and when the driving working condition accords with a preset working condition, receiving an automatic stop function starting instruction sent by an automatic gearbox controller of the target vehicle.
3. The vehicle motor control method according to claim 1, wherein the step of sending a stop request to the automatic transmission controller according to the automatic stop function start command to enable the automatic transmission controller to feed back a stop permission signal specifically comprises:
and sending a stop request to the automatic gearbox controller according to the automatic stop function starting instruction so as to enable the automatic gearbox controller to detect the state of the gearbox, and feeding back a stop-allowing signal when the state of the gearbox meets a preset stop condition.
4. The vehicle motor control method according to claim 3, wherein the step of receiving the stop permission signal fed back by the automatic transmission controller specifically comprises:
and receiving a stop permission signal fed back by the automatic gearbox according to the position of the gear shift lever and the gear shift fork corresponding to the state of the gearbox.
5. The vehicle motor control method according to claim 1, wherein the step of adjusting the current state of the motor of the target vehicle to a stopped state according to the stop permission signal specifically includes:
acquiring the current rotating speed of a motor of the target vehicle;
and adjusting the current rotating speed of the motor of the target vehicle according to the stop permission signal so as to switch the current state of the motor to a stop state.
6. The vehicle motor control method according to claim 1, characterized by, after the step of adjusting the current state of the motor of the target vehicle to a stopped state in accordance with the stop permission signal, further comprising:
and receiving a starting request sent by the automatic gearbox, acquiring the current rotating speed of the motor or acquiring the vehicle state of the target vehicle according to the starting request, and acquiring the current rotating speed of the motor when the vehicle state meets a preset state.
7. The vehicle motor control method according to claim 6, wherein the step of receiving a start request sent by the automatic transmission, acquiring a current rotation speed of the motor or acquiring a vehicle state of the target vehicle according to the start request, and acquiring the current rotation speed of the motor when the vehicle state satisfies a preset state, further comprises:
and when the current rotating speed is greater than a preset rotating speed threshold value, restarting the motor, and switching the current state of the motor into a running state.
8. A vehicle motor control apparatus, characterized by comprising:
the receiving module is used for receiving an automatic shutdown function starting instruction sent by an automatic gearbox controller of a target vehicle;
the sending module is used for sending a stop request to the automatic gearbox controller according to the automatic stop function starting instruction so as to enable the automatic gearbox controller to feed back a stop permission signal;
the feedback module is used for receiving a stop permission signal fed back by the automatic gearbox controller;
and the shutdown module is used for adjusting the current state of the motor of the target vehicle to a shutdown state according to the shutdown permission signal.
9. A vehicle motor control apparatus, characterized by comprising: memory, a processor and a vehicle motor control program stored on the memory and executable on the processor, the vehicle motor control program being configured to implement the steps of the vehicle motor control method according to any one of claims 1 to 7.
10. A storage medium characterized in that the storage medium has stored thereon a vehicle motor control program that, when executed by a processor, implements the steps of the vehicle motor control method according to any one of claims 1 to 7.
CN201911217198.8A 2019-11-29 2019-11-29 Vehicle motor control method, device, equipment and storage medium Active CN110949141B (en)

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CN108545076A (en) * 2018-04-16 2018-09-18 奇瑞汽车股份有限公司 A kind of control method for vehicle and device based on BSG motors
CN110103965A (en) * 2019-04-18 2019-08-09 浙江吉利控股集团有限公司 A kind of vehicle auxiliary halt control method, device and terminal
CN110341685A (en) * 2019-07-08 2019-10-18 高晓杰 Bi-motor increases journey and drives hybrid electric vehicle engine start-up and shut-down control method and system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6260535B1 (en) * 1998-11-12 2001-07-17 Bayerische Motoren Werke Aktiengesellschaft Method and system for the controlled shutting-off of an internal-combustion engine
JP2004308913A (en) * 2004-05-24 2004-11-04 Nissan Motor Co Ltd Control device for hybrid vehicle
CN1827412A (en) * 2006-03-20 2006-09-06 北京理工大学 Electromechanical power coupling assembly for hybrid power automobile
CN102529945A (en) * 2010-12-29 2012-07-04 上海汽车集团股份有限公司 Halt control method and system of hybrid power vehicle
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