CN110682801A - Control method and device of electric vehicle and electric vehicle - Google Patents

Control method and device of electric vehicle and electric vehicle Download PDF

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Publication number
CN110682801A
CN110682801A CN201910984813.1A CN201910984813A CN110682801A CN 110682801 A CN110682801 A CN 110682801A CN 201910984813 A CN201910984813 A CN 201910984813A CN 110682801 A CN110682801 A CN 110682801A
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speed
module
electric vehicle
instruction
control module
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CN201910984813.1A
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CN110682801B (en
Inventor
褚世界
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Hefei Shun Shun Information Technology Co Ltd
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Hefei Shun Shun Information Technology Co Ltd
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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
    • B60L15/28—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 without contact making and breaking, e.g. using a transductor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J99/00—Subject matter not provided for in other groups of this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B62M6/45—Control or actuating devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B62M6/45—Control or actuating devices therefor
    • B62M6/50—Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof
    • 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
    • B60L2200/00—Type of vehicles
    • B60L2200/46—Vehicles with auxiliary ad-on propulsions, e.g. add-on electric motor kits for bicycles
    • 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
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/421—Speed
    • 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

Abstract

The disclosure provides a control method and device of an electric vehicle and the electric vehicle. The method comprises the following steps: the control module responds to a received starting instruction for starting the electric vehicle, sends a detection instruction for detecting the speed of the electric vehicle to the speed measuring module, the speed measuring module detects the speed of the electric vehicle according to the detection instruction, and sends the detected first speed to the control module, the control module responds to the fact that the first speed is larger than or equal to a preset first threshold value, a difference value between the current moment and the moment when the starting instruction is received is smaller than a preset second threshold value, connection between the current limiting module and the motor is started, so that the current is limited for the motor through the current limiting module, the rotating speed of the motor is reduced, the first speed is reduced to be smaller than the first threshold value, a period of time after the electric vehicle is started is ensured, the vehicle speed is kept in a certain range, and driving safety is ensured.

Description

Control method and device of electric vehicle and electric vehicle
Technical Field
The present disclosure relates to the field of vehicle technologies, and in particular, to a method and an apparatus for controlling an electric vehicle, and an electric vehicle.
Background
Along with the pursuit of people to quality of life, people are also constantly promoting to environmental quality's requirement, if advocate green trip, the trip of environmental protection adopts the trip instrument to go on a journey such as bicycle and electric motor car more.
In the prior art, people unlock electric vehicles such as electric vehicles or electric bicycles by keys and control the running speed of the electric vehicles by rotating a handle.
However, in implementing the present disclosure, the inventors found that at least the following problems exist: when the electric vehicle starts, the starting speed is too high due to the fact that the handle is rotated, so that the electric vehicle is accelerated suddenly, and personal safety hazards are caused to riders and pedestrians.
Disclosure of Invention
The disclosure provides a control method and device of an electric vehicle and the electric vehicle, which are used for solving the problem that when the electric vehicle starts in the prior art, the starting speed is too high due to the fact that a rotating handle possibly causes sudden acceleration of the electric vehicle, and personal safety hidden dangers are caused to riders and pedestrians.
In one aspect, an embodiment of the present disclosure provides a control method of an electric vehicle, including:
the control module responds to a received starting instruction for starting the electric vehicle and sends a detection instruction for detecting the speed of the electric vehicle to the speed measuring module;
the speed measuring module detects the speed of the electric vehicle according to the detection instruction and sends the detected first speed to the control module;
and the control module responds to the condition that the first speed is greater than or equal to a preset first threshold value and the difference value between the current moment and the moment when the starting instruction is received is smaller than a preset second threshold value, and starts the connection between the current limiting module and the motor so as to limit the current of the motor through the current limiting module and reduce the rotating speed of the motor, so that the first speed is reduced to be smaller than the first threshold value.
In some embodiments, after the control module opens a connection between a current limiting module and a motor, the method further comprises:
the control module disconnects the current limiting module from the motor in response to the first speed decreasing to a second speed, the second speed being less than the first threshold.
In some embodiments, after the control module opens a connection between a current limiting module and a motor, the method further comprises:
the control module responds to the fact that the time length for starting the connection between the current limiting module and the motor is equal to the preset time length, controls the current limiting module to be disconnected from the motor, and sends a speed measuring stopping instruction to the speed measuring module;
and the speed measuring module stops measuring the speed according to the speed measuring stopping instruction.
In some embodiments, the start command comprises a power-on command and/or a launch command.
In some embodiments, the method further comprises:
the control module acquires state information of a power module of the electric vehicle in response to receiving the starting instruction;
the control module responds to the condition information that the state information is in a non-locking state, and executes a detection instruction for sending the speed of the electric vehicle to a speed measurement module; alternatively, the first and second electrodes may be,
the control module responds to the locking state of the state information, acquires current position information and sends the current position information to the communication module;
and the communication module sends the current position information to a pre-bound user terminal.
In some embodiments, prior to the obtaining of the status information of the power source of the electric vehicle, the method further comprises:
the communication module receives a locking instruction sent by the user terminal and sends the locking instruction to the control module;
and the control module locks the power supply module according to the locking instruction so that the power supply module enters the locking state.
In another aspect, an embodiment of the present disclosure further provides a control apparatus for an electric vehicle, the apparatus including:
the control module is used for responding to a received starting instruction for starting the electric vehicle and sending a detection instruction for detecting the speed of the electric vehicle to the speed measuring module;
the speed measuring module is used for detecting the speed of the electric vehicle according to the detection instruction and sending the detected first speed to the control module;
and the control module is also used for responding that the first speed is greater than or equal to a preset first threshold value, and the time difference between the current moment and the moment when the starting instruction is received is smaller than a preset second threshold value, starting connection between the current limiting module and the motor so as to limit the current of the motor through the current limiting module, and reducing the rotating speed of the motor, so that the first speed is reduced to be smaller than the first threshold value.
In some embodiments, the control module is further configured to disconnect the current limiting module from the electric machine in response to the first speed decreasing to a second speed, the second speed being less than the first threshold.
In some embodiments, the control module is further configured to, in response to a duration for starting a connection between the current limiting module and the motor being equal to a preset duration, control the current limiting module to disconnect the connection from the motor and send a speed measurement stopping instruction to the speed measurement module;
the speed measuring module is also used for stopping measuring the speed according to the speed measuring stopping instruction.
In some embodiments, the start command comprises a power-on command and/or a launch command.
In some embodiments, the apparatus further comprises:
the control module is further used for responding to the received starting instruction, acquiring state information of a power module of the electric vehicle, and responding to the state information being in a non-locking state, and executing a detection instruction for detecting the speed of the electric vehicle to a speed measuring module; alternatively, the first and second electrodes may be,
the control module is also used for responding to the locking state of the state information, acquiring the current position information and sending the current position information to the communication module;
and the communication module is used for sending the current position information to a pre-bound user terminal.
In some embodiments, the communication module is further configured to receive a lock instruction sent by the user terminal, and send the lock instruction to the control module;
the control module is further used for locking the power supply module according to the locking instruction so that the power supply module enters the locking state.
In some embodiments, the control module is further configured to send a prompt instruction for making a prompt sound to the prompt module according to the start instruction;
the prompting module is used for sending out prompting sound according to the prompting instruction;
the power supply module is used for providing power supply for the control module;
and the solar cell panel is used for providing power for the power module.
In another aspect, embodiments of the present disclosure further provide an electric vehicle, which includes a current limiting module and a motor, and a control device of the electric vehicle according to any of the above embodiments.
The control module responds to a received starting instruction for starting the electric vehicle, sends a detection instruction for detecting the speed of the electric vehicle to the speed measuring module, the speed measuring module detects the speed of the electric vehicle according to the detection instruction and sends the detected first speed to the control module, the control module responds to the condition that the first speed is greater than or equal to a preset first threshold value, the difference value between the current moment and the moment when the starting instruction is received is less than a preset second threshold value, the connection between the current limiting module and the motor is opened so as to limit the current of the motor through the current limiting module and reduce the rotating speed of the motor, so that the first speed is reduced to be less than the first threshold value, if the first speed is greater than or equal to the preset first threshold value and the difference value between the current moment and the moment when the starting instruction is received is less than the preset second threshold value, the control module starts connection between the current limiting module and the motor, so that the first speed is reduced to be smaller than a first threshold value, the speed of the electric vehicle is kept in a certain range within a period of time after the electric vehicle is started, and driving safety is guaranteed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a scene schematic diagram of a control method of an electric vehicle according to an embodiment of the present disclosure;
fig. 2 is a flowchart illustrating a control method of an electric vehicle according to an embodiment of the present disclosure;
fig. 3 is a flowchart illustrating a control method of an electric vehicle according to another embodiment of the present disclosure;
fig. 4 is a flowchart illustrating a control method of an electric vehicle according to another embodiment of the present disclosure;
fig. 5 is a flowchart illustrating a control method of an electric vehicle according to another embodiment of the present disclosure;
fig. 6 is a block schematic diagram of a control apparatus of an electric vehicle of the embodiment of the present disclosure;
fig. 7 is a block schematic diagram of a control apparatus of an electric vehicle according to another embodiment of the present disclosure;
fig. 8 is a block schematic diagram of a control apparatus of an electric vehicle according to another embodiment of the present disclosure;
FIG. 9 is a block schematic diagram of an electric vehicle according to an embodiment of the present disclosure;
reference numerals: 1. control module, 2, module that tests the speed, 3, power module, 4, communication module, 5, suggestion module, 6, solar cell panel, 7, current-limiting module, 8, motor.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Referring to fig. 1, fig. 1 is a schematic view illustrating a control method of an electric vehicle according to an embodiment of the disclosure.
In the application scenario as shown in fig. 1, the user 10 may travel through the electric vehicle 20. Specifically, when the user 10 turns on the power of the electric vehicle 20 by a key, the travel of the electric vehicle 20 may be controlled by rotating the handle, and the magnitude of the rotation of the handle is the adjustment of the speed of the travel of the electric vehicle 20.
When the control method of the electric vehicle according to the embodiment of the present disclosure is applied to the application scenario shown in fig. 1, exemplarily, when the user 10 turns on the power supply of the electric vehicle 20 by using a key, and controls the electric vehicle 20 to run by rotating a handle, a detection instruction for detecting the speed of the electric vehicle 20 may be sent to the speed measurement module by using a control module disposed in the electric vehicle 20, the speed measurement module sends the detected speed to the control module, and when the control module determines that the electric vehicle 20 is still in a starting stage, the speed is compared with a preset speed safety value, and if the speed is greater than or equal to the speed safety value, the connection between the current limiting module and the motor is turned on, so that the current is limited to the motor by the current limiting module, and the rotation speed of the motor is reduced, so that the first speed is reduced to be less than a.
The following describes the technical solutions of the present disclosure and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present disclosure will be described below with reference to the accompanying drawings.
In one aspect, the embodiment of the disclosure provides a control method of an electric vehicle, which is suitable for the above scenario.
Referring to fig. 2, fig. 2 is a flowchart illustrating a control method of an electric vehicle according to an embodiment of the disclosure.
As shown in fig. 2, the method includes:
s101: the control module responds to a received starting instruction for starting the electric vehicle and sends a detection instruction for detecting the speed of the electric vehicle to the speed measuring module.
In some embodiments, the start command includes a power-on command and/or a launch command.
In some embodiments, the electric vehicle includes, but is not limited to, an electric bicycle and an electric motorcycle.
In connection with the application scenario as shown in fig. 1, it can be appreciated that the user 10 may travel via the electric vehicle 20. Specifically, when the user 10 turns on the power of the electric vehicle 20 by a key, the travel of the electric vehicle 20 may be controlled by rotating the handle, and the magnitude of the rotation of the handle is the adjustment of the speed of the travel of the electric vehicle 20.
In the prior art, when the electric vehicle 20 is in the starting stage, the speed of the electric vehicle 20 is only related to the amplitude of the handle rotation of the user 10, and the speed can be rapidly increased and exceed the speed safety value (i.e. the first threshold value shown in the following) of the electric vehicle 20, thereby bringing personal safety hazards to the user 10. Such as a user 10 falling off the electric vehicle due to excessive speed.
By the control method of the electric vehicle, the problems can be avoided, and personal safety of a user is ensured.
In some embodiments, when the electric vehicle 20 is in a locked state (e.g., the power of the electric vehicle 20 is not turned on), the user 10 may insert the key into a keyhole of the electric vehicle 20, rotate the key to an unlocked position to unlock the electric vehicle 20, so that the electric vehicle 20 is in an unlocked state, and trigger a start instruction (i.e., a power-on instruction), so that a control module disposed in the electric vehicle 20 receives the start instruction, and the control module sends a detection instruction for detecting the speed of the electric vehicle 20 to a speed measurement module, so as to ensure, through subsequent steps, that the speed of the electric vehicle 20 travels within a speed safety value range, thereby ensuring the safety of the user and other people.
In other embodiments, if the electric vehicle 20 is already in the unlocked state, but the electric vehicle 20 has stopped operating for a certain length of time, such as the user encounters an acquaintance, and stops the vehicle to talk to the acquaintance. When the electric vehicle 20 is in the unlocked state and the operation stop time is longer than the preset time, the user 10 controls the electric vehicle 20 to start operating through the adjusting handle, and then a start instruction (starting instruction) is triggered, so that a control module arranged in the electric vehicle 20 receives the start instruction, and sends a detection instruction for monitoring the speed of the electric vehicle 20 to the speed measurement module, so that the speed of the electric vehicle 20 is ensured to travel within the safe speed range through subsequent steps, and the safety of the user and other personnel is ensured.
In this embodiment, the user 10 may trigger the start instruction and may perform a wrong operation, for example, because the user 10 does not take the key out of the electric vehicle 20, the electric vehicle 20 is in an unlocked state, and the user operates the handle by mistake, so that the electric vehicle 20 starts, the control module receives the start instruction and sends a detection instruction for monitoring the speed of the electric vehicle 20 to the speed measurement module.
In some embodiments, the speed measurement module is an infrared speed meter that determines the speed of the electric vehicle 20 by measuring the rotational speed of the tires of the electric vehicle.
S102: the speed measuring module detects the speed of the electric vehicle according to the detection instruction and sends the detected first speed to the control module.
In some embodiments, the speed measurement module is normally in a sleep state to conserve power. When the speed measuring module receives a detection instruction sent by the control module, the speed measuring module is switched from the dormant state to the working state so as to detect the speed of the electric vehicle 20, and the detected first speed is sent to the control module.
Of course, in other embodiments, when the electric vehicle 20 is in the unlocked state and the speed measurement module does not receive the detection instruction sent by the control module, the speed measurement module may detect the speed of the electric vehicle 20 at a preset frequency and send the detected first speed to the control module.
S103: the control module responds to the fact that the first speed is larger than or equal to a preset first threshold value, and the difference value between the current moment and the moment when the starting instruction is received is smaller than a preset second threshold value, connection between the current limiting module and the motor is started, so that the current is limited to the motor through the current limiting module, the rotating speed of the motor is reduced, and the first speed is reduced to be smaller than the first threshold value.
The first threshold and the second threshold can be set based on requirements. For example, the first threshold is two kilometers per hour and the second threshold is five seconds.
In conjunction with the application scenario shown in fig. 1, for example, if the speed is equal to or greater than two kilometers per hour within five seconds of the start of the electric vehicle 20, the control module controls to open the connection between the current limiting module and the motor so as to limit the current of the motor through the current limiting module, and reduce the rotation speed of the motor so that the speed is reduced to less than two kilometers per hour.
In some embodiments, the first threshold value set for the electric bicycle is less than the first threshold value set for the electric motorcycle.
In some embodiments, the step specifically includes: when the control module receives the first speed sent by the speed measuring module, the first speed is compared with a first threshold, if the first speed is greater than or equal to the first threshold, whether a difference value between the current moment and the moment when the starting instruction is received is smaller than a second threshold is judged, if the difference value is smaller than the second threshold, the starting duration of the electric vehicle 20 is short, and in order to ensure the personal safety of the user 10 and the pedestrian, the speed of the electric vehicle 20 is not too high within a certain time after the starting, so the control module controls the starting of the connection between the current limiting module and the motor. It can be understood that, after the current limiting module is connected with the motor, the current limiting function is performed on the current of the motor, so that the current acting on the motor is reduced, the rotating speed of the motor is further reduced, and the first speed is reduced until the first speed is reduced to the first threshold value.
In some embodiments, the step specifically includes: when the control module receives a first speed sent by the speed measuring module, whether a difference value between the current time and the time when the starting instruction is received is smaller than a second threshold value or not is judged, if the difference value is smaller than the second threshold value, the starting time of the electric vehicle 20 is short, and in order to ensure the personal safety of the user 10 and the pedestrian, the speed of the electric vehicle 20 is not too high within a certain time after the electric vehicle is started, the control module compares the first speed with the first threshold value, and if the first speed is larger than or equal to the first threshold value, the control module controls to start the connection between the current limiting module and the motor. It can be understood that, after the current limiting module is connected with the motor, the current limiting function is performed on the current of the motor, so that the current acting on the motor is reduced, the rotating speed of the motor is further reduced, and the first speed is reduced until the first speed is reduced to the first threshold value.
In an embodiment of the present disclosure, there is provided a new control method of an electric vehicle, the method including: the control module responds to a received starting instruction for starting the electric vehicle, sends a detection instruction for detecting the speed of the electric vehicle to the speed measuring module, the speed measuring module detects the speed of the electric vehicle according to the detection instruction and sends the detected first speed to the control module, the control module responds to the condition that the first speed is greater than or equal to a preset first threshold value, the difference value between the current moment and the moment when the starting instruction is received is smaller than a preset second threshold value, the control module starts the connection between the current limiting module and the motor so as to limit the current of the motor through the current limiting module and reduce the rotating speed of the motor, the first speed is reduced to be smaller than the first threshold value, and if the first speed is greater than or equal to the preset first threshold value and the difference value between the current moment and the moment when the starting instruction is received is smaller than the preset second threshold value, the control module starts the connection between the current limiting module and the motor, and reducing the first speed to be less than a first threshold value so as to ensure that the speed of the electric vehicle is kept in a certain range within a period of time after the electric vehicle is started, and ensuring the driving safety.
Referring to fig. 3, fig. 3 is a flowchart illustrating a control method of an electric vehicle according to another embodiment of the disclosure.
As shown in fig. 3, the method includes:
s201: the control module responds to a received starting instruction for starting the electric vehicle and sends a detection instruction for detecting the speed of the electric vehicle to the speed measuring module.
The description of S201 can refer to S101, and is not repeated here.
S202: the speed measuring module detects the speed of the electric vehicle according to the detection instruction and sends the detected first speed to the control module.
The description of S202 can refer to S102, which is not described herein again.
S203: the control module responds to the fact that the first speed is larger than or equal to a preset first threshold value, and the difference value between the current moment and the moment when the starting instruction is received is smaller than a preset second threshold value, connection between the current limiting module and the motor is started, so that the current is limited to the motor through the current limiting module, the rotating speed of the motor is reduced, and the first speed is reduced to be smaller than the first threshold value.
The description of S203 can refer to S103, which is not described herein.
S204: the control module disconnects the current limiting module from the motor in response to the first speed decreasing to a second speed, the second speed being less than a first threshold.
In the embodiment of the present disclosure, when the current limiting module is connected to the motor, so that the vehicle speed is reduced, the speed measuring module may detect the speed in real time or at preset intervals, and send the detected second speed to the control module, when the control module receives the second speed, the control module compares the second speed with the first threshold, and if the second speed is less than the first threshold, it indicates that the speed of the electric vehicle is a safe driving speed, the connection between the current limiting module and the motor is disconnected, so that the electric vehicle 20 is recovered to normal control.
Referring to fig. 4, fig. 4 is a flowchart illustrating a control method of an electric vehicle according to another embodiment of the disclosure.
As shown in fig. 4, the method includes:
s301: the control module responds to a received starting instruction for starting the electric vehicle and sends a detection instruction for detecting the speed of the electric vehicle to the speed measuring module.
The description of S301 can refer to S101, and is not repeated here.
S302: the speed measuring module detects the speed of the electric vehicle according to the detection instruction and sends the detected first speed to the control module.
The description of S302 may refer to S102, which is not described herein again.
S303: the control module responds to the fact that the first speed is larger than or equal to a preset first threshold value, and the difference value between the current moment and the moment when the starting instruction is received is smaller than a preset second threshold value, connection between the current limiting module and the motor is started, so that the current is limited to the motor through the current limiting module, the rotating speed of the motor is reduced, and the first speed is reduced to be smaller than the first threshold value.
The description of S303 can refer to S103, which is not described herein.
S304: the control module responds to the fact that the duration of starting connection between the current limiting module and the motor is equal to the preset duration, controls the current limiting module to be disconnected from the motor, and sends a speed measuring stopping instruction to the speed measuring module.
The preset duration can be set based on requirements.
In some embodiments, the preset duration is greater than or equal to the second threshold.
In this step, the control module may start timing from the start of connection between the current limiting module and the motor, and when the timing duration is equal to a preset duration, it indicates that the electric vehicle 20 has started for a certain time, and may enter a state of accelerating running, and the control module sends an instruction to stop speed measurement to the speed measurement module.
S305: the speed measuring module stops measuring the speed according to the speed measuring stopping instruction.
In this step, the speed measuring module stops measuring the speed, and can enter a dormant state so as to save electric energy and the like.
Referring to fig. 5, fig. 5 is a flowchart illustrating a control method of an electric vehicle according to another embodiment of the disclosure.
As shown in fig. 5, the method includes:
s401: the control module acquires state information of a power module of the electric vehicle in response to receiving the start instruction.
Wherein the state information includes an unlocked state and a locked state. If the state information is in the unlocked state, the power supply cannot be started, and the electric vehicle 20 cannot be used; if the state information is the locked state, the power supply can be started and the electric vehicle 20 can be used.
In some embodiments, before S401, the method may further include:
s01: the communication module receives a locking instruction sent by the user terminal and sends the locking instruction to the control module.
S02: and the control module locks the power supply module according to the locking instruction so that the power supply module enters a locking state.
For example, when the owner of the electric vehicle 20 finds that the electric vehicle is lost, a locking instruction may be sent to the communication module through the user terminal, and the locking instruction is used to lock the power module, so that the power supply cannot be started and the electric vehicle 20 cannot be used.
Of course, in order to ensure property safety, that is, the electric vehicle 20 is not stolen, the owner can send a locking instruction to the communication module through the user terminal after the use of the electric vehicle 20 is finished, and the locking instruction is used for locking the power supply module, so that the power supply cannot be started and the electric vehicle 20 cannot be used.
S402: and the control module responds to the condition information that the state information is in the non-locking state, and executes a detection instruction for sending the speed of the electric vehicle to the speed measurement module.
In this step, the control module determines the state information, and if the state information is in a non-locked state, that is, the power supply can be started and the electric vehicle 20 can be used, the control module sends a detection instruction for detecting the speed of the electric vehicle 20 to the speed measurement module. The following steps can be referred to the above examples, and are not described herein.
S403: and the control module responds to the locking state of the state information, acquires the current position information and sends the current position information to the communication module.
In this step, the control module determines the status information, and if the status information is in a locked state, that is, the power supply cannot be started and the electric vehicle 20 cannot be used, the control module acquires the current location information.
In some embodiments, a positioning component (e.g., GPS, etc.) may be disposed in the control module, and the current location information may be obtained by the positioning component.
Of course, in other embodiments, a positioning module may be separately provided to acquire the current position information. If the control module determines that the state information is in the locking state, an instruction for acquiring the current position information is sent to the positioning module, and the positioning module acquires the current position information according to the instruction and sends the acquired current position information to the control module.
S404: and the communication module sends the current position information to the pre-bound user terminal.
The user terminal may be a user terminal of a vehicle owner corresponding to the electric vehicle 20, or may be a user terminal preset by the vehicle owner. User terminals include, but are not limited to, cell phones, smart bracelets, and smart watches.
In some embodiments, the communication module includes an antenna assembly and a SIM card assembly. The antenna assembly is used for interacting with the user terminal, and the SIM card assembly can be provided with an SIM and bound with the user terminal.
In the embodiment of the present disclosure, the owner of the vehicle can lock the power module through the user terminal, so as to lock the electric vehicle 20, so that the electric vehicle 20 cannot be used, thereby implementing the anti-theft protection of the electric vehicle 20 and ensuring the property safety of the owner of the vehicle. Moreover, if the automatic vehicle 20 has been stolen, the owner of the vehicle can lock the automatic vehicle 20 through the user terminal and obtain the current position information of the automatic vehicle 20, so as to retrieve the lost automatic vehicle 20.
According to another aspect of the embodiments of the present disclosure, there is also provided a control apparatus of an electric vehicle.
Referring to fig. 6, fig. 6 is a block diagram illustrating a control device of an electric vehicle according to an embodiment of the disclosure.
As shown in fig. 6, the apparatus includes a control module 1 and a speed measuring module 2, wherein:
the control module 1 is used for responding to a received starting instruction for starting the electric vehicle and sending a detection instruction for detecting the speed of the electric vehicle to the speed measuring module 2;
the speed measuring module 2 is used for detecting the speed of the electric vehicle according to the detection instruction and sending the detected first speed to the control module 1;
the control module 1 is further configured to, in response to that the first speed is greater than or equal to a preset first threshold and that a time difference between a current time and a time when the start instruction is received is smaller than a preset second threshold, open a connection between a current limiting module and a motor so as to limit current to the motor through the current limiting module, reduce a rotation speed of the motor, and reduce the first speed to be smaller than the first threshold.
In some embodiments, the control module 1 is further configured to disconnect the current limiting module from the electric machine in response to the first speed decreasing to a second speed, the second speed being less than the first threshold.
In some embodiments, the control module 1 is further configured to, in response to that a duration for starting the connection between the current limiting module and the motor is equal to a preset duration, control the current limiting module to disconnect the connection with the motor, and send an instruction for stopping speed measurement to the speed measurement module 2;
the speed measuring module 2 is further configured to stop measuring speed according to the speed measuring stop instruction.
In some embodiments, the start command comprises a power-on command and/or a launch command.
As can be seen in connection with fig. 7, in some embodiments, the apparatus comprises:
the control module 1 is further configured to, in response to receiving the start instruction, acquire state information of a power module 3 of the electric vehicle, and in response to the state information being in a non-locked state, execute a detection instruction for sending a speed detection instruction for detecting a speed of the electric vehicle to a speed measurement module 2; alternatively, the first and second electrodes may be,
the control module 1 is further configured to, in response to the state information being a locked state, acquire current position information, and send the current position information to the communication module 4;
the communication module 4 is configured to send the current location information to a pre-bound user terminal.
In some embodiments, the communication module 4 is further configured to receive a lock instruction sent by the user terminal, and send the lock instruction to the control module 1;
the control module 1 is further configured to lock the power module 3 according to the locking instruction, so that the power module 3 enters the locked state.
As can be seen in connection with fig. 8, in some embodiments, the apparatus comprises:
the control module 1 is further configured to send a prompt instruction for making a prompt sound to the prompt module 5 according to the start instruction;
the prompting module 5 is used for sending out a prompting sound according to the prompting instruction;
the power module 3 is used for providing power for the control module 1;
and the solar cell panel 6 is used for providing power for the power module 3.
According to another aspect of the disclosed embodiments, the disclosed embodiments also provide an electric vehicle.
Referring to fig. 9, fig. 9 is a block diagram of an electric vehicle according to an embodiment of the disclosure.
As shown in fig. 9, the electric vehicle includes a current limiting module 7 and a motor 8, and a control device of the electric vehicle according to any of the above embodiments.
The reader should understand that in the description of this specification, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present disclosure.
In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present disclosure may be substantially or partially contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It should also be understood that, in the embodiments of the present disclosure, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present disclosure.
While the present disclosure has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (14)

1. A control method of an electric vehicle, characterized by comprising:
the control module responds to a received starting instruction for starting the electric vehicle and sends a detection instruction for detecting the speed of the electric vehicle to the speed measuring module;
the speed measuring module detects the speed of the electric vehicle according to the detection instruction and sends the detected first speed to the control module;
and the control module responds to the condition that the first speed is greater than or equal to a preset first threshold value and the difference value between the current moment and the moment when the starting instruction is received is smaller than a preset second threshold value, and starts the connection between the current limiting module and the motor so as to limit the current of the motor through the current limiting module and reduce the rotating speed of the motor, so that the first speed is reduced to be smaller than the first threshold value.
2. The method of claim 1, wherein after the control module opens a connection between a current limiting module and a motor, the method further comprises:
the control module disconnects the current limiting module from the motor in response to the first speed decreasing to a second speed, the second speed being less than the first threshold.
3. The method of claim 1, wherein after the control module opens a connection between a current limiting module and a motor, the method further comprises:
the control module responds to the fact that the time length for starting the connection between the current limiting module and the motor is equal to the preset time length, controls the current limiting module to be disconnected from the motor, and sends a speed measuring stopping instruction to the speed measuring module;
and the speed measuring module stops measuring the speed according to the speed measuring stopping instruction.
4. The method according to any one of claims 1 to 3,
the starting instruction comprises a power supply starting instruction and/or a starting instruction.
5. The method according to any one of claims 1 to 3, further comprising:
the control module acquires state information of a power module of the electric vehicle in response to receiving the starting instruction;
the control module responds to the condition information that the state information is in a non-locking state, and executes a detection instruction for sending the speed of the electric vehicle to a speed measurement module; alternatively, the first and second electrodes may be,
the control module responds to the locking state of the state information, acquires current position information and sends the current position information to the communication module;
and the communication module sends the current position information to a pre-bound user terminal.
6. The method of claim 5, wherein prior to the obtaining the status information of the power module of the electric vehicle, the method further comprises:
the communication module receives a locking instruction sent by the user terminal and sends the locking instruction to the control module;
and the control module locks the power supply module according to the locking instruction so that the power supply module enters the locking state.
7. A control apparatus of an electric vehicle, characterized in that the apparatus comprises:
the control module is used for responding to a received starting instruction for starting the electric vehicle and sending a detection instruction for detecting the speed of the electric vehicle to the speed measuring module;
the speed measuring module is used for detecting the speed of the electric vehicle according to the detection instruction and sending the detected first speed to the control module;
and the control module is also used for responding that the first speed is greater than or equal to a preset first threshold value, and the time difference between the current moment and the moment when the starting instruction is received is smaller than a preset second threshold value, starting connection between the current limiting module and the motor so as to limit the current of the motor through the current limiting module, and reducing the rotating speed of the motor, so that the first speed is reduced to be smaller than the first threshold value.
8. The apparatus of claim 7,
the control module is further configured to disconnect the current limiting module from the motor in response to the first speed decreasing to a second speed, the second speed being less than the first threshold.
9. The apparatus of claim 7,
the control module is further used for controlling the current limiting module to be disconnected from the motor and sending a speed measuring stopping instruction to the speed measuring module in response to the fact that the time length for starting the connection between the current limiting module and the motor is equal to the preset time length;
the speed measuring module is also used for stopping measuring the speed according to the speed measuring stopping instruction.
10. The apparatus according to any one of claims 7 to 9,
the starting instruction comprises a power supply starting instruction and/or a starting instruction.
11. The apparatus of any one of claims 7 to 9, further comprising:
the control module is further used for responding to the received starting instruction, acquiring state information of a power module of the electric vehicle, and responding to the state information being in a non-locking state, and executing a detection instruction for detecting the speed of the electric vehicle to a speed measuring module; alternatively, the first and second electrodes may be,
the control module is also used for responding to the locking state of the state information, acquiring the current position information and sending the current position information to the communication module;
and the communication module is used for sending the current position information to a pre-bound user terminal.
12. The apparatus according to any one of claims 7 to 9,
the communication module is further used for receiving a locking instruction sent by the user terminal and sending the locking instruction to the control module;
the control module is further used for locking the power supply module according to the locking instruction so that the power supply module enters the locking state.
13. The apparatus of any one of claims 7 to 9, further comprising:
the control module is also used for sending a prompt instruction for sending prompt sound to the prompt module according to the starting instruction;
the prompting module is used for sending out prompting sound according to the prompting instruction;
the power supply module is used for providing power supply for the control module;
and the solar cell panel is used for providing power for the power module.
14. An electric vehicle characterized by comprising a current limiting module and a motor, and a control device of the electric vehicle according to any one of claims 7 to 13.
CN201910984813.1A 2019-10-16 2019-10-16 Control method and device of electric vehicle and electric vehicle Active CN110682801B (en)

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Citations (5)

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Publication number Priority date Publication date Assignee Title
EP0569954A1 (en) * 1992-05-11 1993-11-18 Yamaha Hatsudoki Kabushiki Kaisha Bicycle with electric motor
CN1107112A (en) * 1993-10-29 1995-08-23 雅马哈发动机株式会社 Vehicle with electric motor
KR20130114959A (en) * 2012-04-10 2013-10-21 한국파워트레인 주식회사 Electric bicycle having a preventing function of a sudden rush and method to control thereof
CN103661763A (en) * 2012-09-19 2014-03-26 株式会社万都 Electric bicycle and a control method thereof
CN108674569A (en) * 2018-04-28 2018-10-19 东峡大通（北京）管理咨询有限公司 Method for controlling driving speed, system and the motor bicycle of motor bicycle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569954A1 (en) * 1992-05-11 1993-11-18 Yamaha Hatsudoki Kabushiki Kaisha Bicycle with electric motor
CN1107112A (en) * 1993-10-29 1995-08-23 雅马哈发动机株式会社 Vehicle with electric motor
KR20130114959A (en) * 2012-04-10 2013-10-21 한국파워트레인 주식회사 Electric bicycle having a preventing function of a sudden rush and method to control thereof
CN103661763A (en) * 2012-09-19 2014-03-26 株式会社万都 Electric bicycle and a control method thereof
CN108674569A (en) * 2018-04-28 2018-10-19 东峡大通（北京）管理咨询有限公司 Method for controlling driving speed, system and the motor bicycle of motor bicycle

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