CN110949596A - Electric vehicle control system and electric vehicle - Google Patents
Electric vehicle control system and electric vehicle Download PDFInfo
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- CN110949596A CN110949596A CN201911179880.2A CN201911179880A CN110949596A CN 110949596 A CN110949596 A CN 110949596A CN 201911179880 A CN201911179880 A CN 201911179880A CN 110949596 A CN110949596 A CN 110949596A
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- 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
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- 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
- B62J3/00—Acoustic signal devices; Arrangement of such devices on cycles
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- 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
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- 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
Abstract
The invention provides an electric vehicle control system and an electric vehicle, wherein the electric vehicle control system comprises a central control module and a central control module, wherein the central control module is used for judging the state of the electric vehicle; the speed control module is used for generating a speed control signal according to speed regulation operation executed by a user; a motor; and the motor controller is electrically connected with the central control module, the speed control module and the motor and used for controlling the operation of the motor according to the preparation state of the electric vehicle and the speed control signal when the motor is in the non-operation state. When the electric vehicle is started, the operation of the motor is allowed to be controlled according to the speed request of the speed control module only when the current starting condition is judged to be reached according to the detection result of the central control module, so that the safety performance of the electric vehicle in the use process can be effectively guaranteed, and the electric vehicle is prevented from being started accidentally.
Description
Technical Field
The invention relates to the field of electric vehicle safety, in particular to an electric vehicle control system and an electric vehicle.
Background
Along with the more and more of road electric motor car, the electric motor car is liked deeply as a convenient short distance mode of going out, and the safety problem is the research key point of trip process always, and present electric motor car class trip motor control system does: only by means of the control of the rotation finishing speed of the handle, a user often does not hold the electric vehicle when using the electric vehicle, and touches the handle to cause the rotation of the motor, so that the phenomenon of galloping occurs, even the phenomenon that a driver clenches the handle to be dragged occurs, and the personal safety of the driver and surrounding people is seriously harmed. The trip system which only depends on the handle signal to control the motor speed undoubtedly causes serious hidden danger for safe trip. Therefore, a safer electric vehicle control technology is needed to ensure the safety of the user in the process of using the electric vehicle.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide an electric vehicle control system and an electric vehicle, which are used to solve the problem that the safety of the electric vehicle cannot be effectively ensured in the prior art.
To achieve the above and other related objects, the present invention provides a control system for an electric vehicle, comprising: the central control module is used for judging the state of the electric vehicle; the speed control module is used for generating a speed control signal according to speed regulation operation executed by a user; a motor; and the motor controller is electrically connected with the central control module, the speed control module and the motor and used for controlling the operation of the motor according to the state of the electric vehicle and the speed control signal when the motor is in a non-operation state.
In a specific embodiment, the state of the electric vehicle comprises a waiting state and a preparation completion state; and the motor controller is used for allowing the motor to be controlled to operate according to the speed control signal when the motor is in a non-operation state and the electric vehicle is in the preparation completion state.
In a specific embodiment, the electric vehicle control system further includes a gyroscope electrically connected to the central control module, the gyroscope is disposed on the electric vehicle, and the central control module determines that the electric vehicle is in the preparation completion state according to the fact that the gyroscope detects that the electric vehicle is in the equilibrium state; and the central control module judges that the electric vehicle is in the waiting state when the gyroscope detects that the electric vehicle is in the unbalanced state.
In a specific embodiment, the electric vehicle control system further includes a grip sensor electrically connected to the central control module, the grip sensor is mounted on a handlebar of the electric vehicle, and the central control module determines that the electric vehicle is in the preparation completion state according to the fact that the gyroscope detects that the electric vehicle is in the equilibrium state and according to the fact that the grip sensor detects that the handlebar is gripped; and the central control module judges that the electric vehicle is in the waiting state according to the situation that the gyroscope detects that the electric vehicle is in the unbalanced state or according to the situation that the grip sensor detects that the vehicle handle is not gripped.
In a specific embodiment, the electric vehicle control system further comprises a pedal frequency sensor electrically connected to the motor controller, and configured to generate a pedal rotation signal according to the detected rotation of the pedal, and send the pedal rotation signal to the motor controller; the motor controller is used for controlling the operation of the motor according to the state of the electric vehicle, the pedal rotation signal and the speed control signal when the motor is in a non-operation state.
In a specific embodiment, the motor controller is configured to allow the motor to be controlled to operate according to the speed control signal when the motor is in a non-operating state, and when the electric vehicle is in the preparation completion state and the pedal rotation signal is received, so as to start the motor.
In a specific embodiment, when the motor controller receives the speed control signal in the running state of the motor, the motor controller directly controls the running of the motor according to the speed control signal.
In one embodiment, the hub control module is further configured to send optimization commands to the motor controller based on motor operating data and/or electric vehicle status data.
In an embodiment, the process of sending the optimization processing command to the motor controller according to the motor operation data by the hub control module further includes: the central control module sends a slow start signal to the motor controller when judging that the motor is in a start state according to the motor operation data, so that the motor controller can command the motor to gradually increase the motor operation speed to a first designated value in a corresponding speed increasing mode according to the slow start signal;
and/or the central control module sends a downhill operation signal to the motor controller when judging that the electric vehicle is in a downhill state according to the motor operation data, so that the motor controller can command the motor to operate at a corresponding first moment according to the downhill operation signal and command the motor to adjust the operation speed of the motor to a second designated value in a first speed adjustment mode; and/or
And when the central control module judges that the electric vehicle is in an uphill state according to the motor operation data, the central control module sends an uphill operation signal to the motor controller so that the motor controller can enable the motor to operate at a corresponding second moment according to the uphill operation signal and enable the motor to adjust the operation speed of the motor to a third specified value in a second speed adjustment mode.
In a specific embodiment, the electric vehicle control system further comprises a positioning module electrically connected with the central control module, and the state data of the electric vehicle comprises electric vehicle position information acquired according to the positioning module; wherein, the process that the central control module is further used for sending an optimization processing command to the motor controller according to the motor operation data and/or the state data of the electric vehicle comprises the following steps:
the central control module sends a downhill running signal to the motor controller when judging that the electric vehicle is in a downhill state according to the position information of the electric vehicle and/or the motor running data, so that the motor controller can command the motor to run with a corresponding first moment according to the downhill running signal and can command the motor to adjust the running speed of the motor to a second designated value in a first speed adjustment mode; and/or
And when the central control module judges that the electric vehicle is in an uphill state according to the position information of the electric vehicle and/or the motor operation data, the central control module sends an uphill operation signal to the motor controller, so that the motor controller can enable the motor to operate at a corresponding second moment according to the uphill operation signal and enable the motor to adjust the operation speed of the motor to a third specified value in a second speed adjustment mode.
In a specific embodiment, the electric vehicle control system further includes a voice module electrically connected to the motor controller, and the motor controller is configured to cause the voice module to play a preset prompt voice when the electric vehicle is in the waiting state or when the electric vehicle is in the preparation completion state and the pedal rotation signal is not received.
To achieve the above and other related objects, the present invention also provides an electric vehicle including the electric vehicle control system as described in any one of the above.
As described above, the present invention provides an electric vehicle control system and an electric vehicle, wherein the electric vehicle control system includes a central control module for determining a state of the electric vehicle; the speed control module is used for generating a speed control signal according to speed regulation operation executed by a user; a motor; and the motor controller is electrically connected with the central control module, the speed control module and the motor and used for controlling the operation of the motor according to the state of the electric vehicle and the speed control signal when the motor is in a non-operation state. That is, when the electric vehicle is started, the electric vehicle is allowed to control the operation of the motor according to the speed request of the speed control module only when the current starting condition is judged to be reached according to the detection result of the central control module, so that the safety performance of the electric vehicle in the use process can be effectively guaranteed, and the electric vehicle is prevented from being started accidentally.
Drawings
Fig. 1 is a schematic diagram of an electric vehicle control system according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of the electric vehicle control system according to an embodiment of the present invention.
Fig. 3 is a schematic diagram illustrating the operation of the motor controller according to an embodiment of the present invention.
Description of the element reference numerals
1 electric vehicle control system
11 central control module
12 speed control module
13 electric machine
14 motor controller
15-step frequency sensor
Detailed Description
The following description of the embodiments of the present application is provided for illustrative purposes, and other advantages and capabilities of the present application will become apparent to those skilled in the art from the present disclosure.
In the following description, reference is made to the accompanying drawings that describe several embodiments of the application. It is to be understood that other embodiments may be utilized and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present disclosure. The following detailed description is not to be taken in a limiting sense, and the scope of embodiments of the present application is defined only by the claims of the issued patent.
Although the terms first, second, etc. may be used herein to describe various elements in some instances, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first preset threshold may be referred to as a second preset threshold, and similarly, the second preset threshold may be referred to as a first preset threshold, without departing from the scope of the various described embodiments. The first preset threshold and the preset threshold are both described as one threshold, but they are not the same preset threshold unless the context clearly indicates otherwise. Similar situations also include a first volume and a second volume.
Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.
The technical solution of the present application will be described in detail with specific examples. Several specific embodiments may be combined with each other below, and details of the same or similar concepts or processes may not be repeated in some embodiments.
The invention provides an electric vehicle control system aiming at the defects of the prior art, which is used for carrying out safety control when an electric vehicle is started, and comprises a central control module, a speed control module, a motor and a motor controller, wherein the motor controller allows the motor to be controlled to operate according to a speed control signal of the speed control module only when the state input by the central control module reaches a preparation completion state, so that the phenomenon of runaway of a user when the user is not prepared can be effectively prevented. In particular, reference is made to the description below.
Referring to fig. 1, a schematic composition diagram of an electric vehicle control system according to an embodiment of the invention is shown. The electric vehicle control system 1 is applied to an electric vehicle, and the electric vehicle control system 1 includes: a hub control module 11, a speed control module 12, a motor 13, and a motor controller 14.
The central control module 11 is used for judging the state of the electric vehicle; wherein the state of the electric vehicle includes a waiting state and a preparation completion state. In a specific application, the central control module 11 is composed of a microprocessor with a data processing function and related peripheral circuits, and can complete communication and other control functions of the whole electric vehicle, and when the electric vehicle is powered on, the central control module 11 can send a power-on signal to the motor controller 14, and the motor controller 14 powers on the motor controller 14 and the motor 13 according to the power-on signal. That is, the hub control module 11 has a function of communicating with the server and a function of collecting and logically analyzing decision of other detection signals.
For example, in a specific embodiment, the electric vehicle control system 1 further includes a gyroscope electrically connected to the central control module 11, the gyroscope is disposed on the electric vehicle, and the central control module 11 determines that the electric vehicle is in the preparation completion state according to the gyroscope when detecting that the electric vehicle is in the equilibrium state; and the central control module 11 determines that the electric vehicle is in the waiting state when the gyroscope detects that the electric vehicle is in the unbalanced state. The gyroscope is an angular motion detection device which uses a momentum moment sensitive shell of a high-speed revolving body to rotate around one or two axes which are orthogonal to a rotation axis relative to an inertia space. When the movement of the gyro is analyzed approximately from the mechanical point of view, it can be regarded as a rigid body, on the rigid body a universal pivot is set, and the gyro can make three-freedom rotation around said pivot, so that the movement of the gyro belongs to the rotation movement of the rigid body around a fixed point.
For example, in some embodiments, the electric vehicle control system 1 further includes a grip sensor electrically connected to the central control module 11, the grip sensor being mounted on a handlebar of the electric vehicle, at least one of the two handlebars of the electric vehicle being provided with the grip sensor. The central control module 11 determines that the electric vehicle is in the preparation completion state according to the situation that the gyroscope detects that the electric vehicle is in the balance state and according to the situation that the grip sensor detects that the vehicle handle is gripped; and the central control module 11 determines that the electric vehicle is in the waiting state when the gyroscope detects that the electric vehicle is in an unbalanced state or the grip sensor detects that the handlebar is not gripped. In a specific application, the grip sensor is, for example, a pressure sensor, and when the pressure detected by the pressure sensor is greater than a pressure threshold, it is determined that the handlebar is gripped, and when the pressure detected by the pressure sensor is less than or equal to the pressure threshold, it is determined that the handlebar is not gripped. Alternatively, in another embodiment, the grip sensor may be a photoelectric sensor. For example, when the detected light intensity is reduced to a light intensity threshold value due to the fact that the light is blocked by the photoelectric sensor, it is judged that the handlebar is gripped; and when the photoelectric sensor detects that the light intensity is greater than or equal to the light intensity threshold value, judging that the handlebar is not gripped.
The speed control module 12 is configured to generate a speed control signal according to a speed adjustment operation performed by a user; the speed control module 12 may perform speed adjustments based on a rotatable handlebar. For example, a user generates a speed control signal by rotating a handlebar on which the speed control module 12 is mounted, and may transmit the speed control signal to the motor controller. And the greater the magnitude by which the handlebar is rotated, the greater the operating speed of the motor 13 is controlled by the motor controller 14 in accordance with the generated speed control signal. And the speed control module 12 may generate a simulated speed control signal to the motor controller 14 based on the rotation of the handlebar. The circuit structure of the speed control module 12 can be selected specifically as required, and is not described herein.
The motor controller 14 is electrically connected to the central control module 11, the speed control module 12 and the motor 13, and is configured to control the operation of the motor 13 according to the state of the electric vehicle and the speed control signal when the motor 13 is in a non-operation state. Wherein the motor 13 may be a permanent magnet motor. The motor controller 14 is an integrated circuit that actively controls the motor 13 to operate in accordance with a set direction, speed, angle, and response time. The motor controller 14 may be classified into a dc motor controller and an ac motor controller according to the current form thereof, and the motor 13 may be classified into a dc motor, a brushless dc motor and a stepping motor according to the driving form thereof. The types of the motor 13 and the motor controller 14 of the present invention can be flexibly selected according to different application environments, and are not limited herein.
In some embodiments, the motor controller 14 is configured to allow the motor 13 to be controlled to operate according to the speed control signal when the electric vehicle is in the preparation completion state, which is obtained when the motor 13 is in the non-operation state. Can ensure that the electric vehicle is not easy to fly when the electric vehicle is started.
And when the motor 13 is in a running state, the motor controller 14 directly controls the speed adjustment of the motor 13 according to the speed control signal when receiving the speed control signal of the speed control module 12. That is, when the motor 13 is in the non-operating state and in the operating state, and the motor controller 14 receives the speed control signal, different processing logics are adopted, so that the driving safety of a user can be more effectively guaranteed.
In order to further prevent the accidental start of the electric vehicle, as shown in fig. 2, the electric vehicle control system 1 of the present invention further includes a pedal frequency sensor 15 electrically connected to the motor controller 14 for generating a pedal rotation signal according to the detected rotation of the pedal and sending the pedal rotation signal to the motor controller 14, because the state of the electric vehicle can satisfy the preparation completion state (i.e. the electric vehicle is in balance and the handle is held), that is, it is judged that the accidental start of the motor when the user pushes is easily caused only according to the state of the central control module 11; and the motor controller 14 is configured to control the operation of the motor 13 according to the state of the electric vehicle, the pedal rotation signal, and the speed control signal when the motor 13 is in a non-operation state.
In a specific embodiment, the pedal frequency sensor 15 can detect the rotation of the pedal according to the principle of magnetic induction, for example, the pedal frequency sensor 15 includes a first magnetic induction portion fixed at the pedal rotation shaft and a second magnetic induction portion fixed on the frame of the electric vehicle, where the second magnetic induction portion is installed at a position corresponding to the pedal rotation shaft, and when the pedal is rotated, the first magnetic induction portion is rotated, so that the magnetic induction signal generated between the first magnetic induction portion and the second magnetic induction portion forms a periodic variation, and one periodic variation of the magnetic induction signal represents that the pedal is rotated by one turn. In another embodiment, a photoelectric sensor may also be used to detect the pedal rotation signal, the photoelectric sensor is installed on the frame of the electric vehicle corresponding to the pedal, and when the pedal is rotated to a certain position, the light of the photoelectric sensor is blocked, that is, the number of times the pedal is rotated can be obtained according to the number of times the light detected by the photoelectric sensor is blocked.
Specifically, the motor controller 14 is configured to allow the motor to be controlled to operate according to the speed control signal when the electric vehicle is in the preparation completion state and the pedal rotation signal is received (that is, the pedal is determined to be rotated) when the motor 13 is in the non-operation state, so as to start the motor 13. The electric motor car not only is in the state that the balance and the handlebar are gripped, but also the user has sat the electric motor car and has stepped on this footboard, can be comparatively accurate show the user and start the intention of electric motor car, and the operation of starting motor under this state can further ensure user's user security, realizes the motor start-up process of double gate promptly by stepping on frequency sensor 15 and maincenter control module 11.
In some embodiments, the hub control module 11 is further configured to send optimization commands to the motor controller 14 based on motor operating data and/or electric vehicle status data.
In some embodiments, the process of the hub control module 11 sending the optimization command to the motor controller 14 according to the motor operation data includes:
when the central control module 11 judges that the motor 13 is in a starting state according to the motor operation data, a slow starting signal is sent to the motor controller 14, so that the motor controller 14 can command the motor 13 to gradually increase the motor operation speed to a first designated value in a corresponding speed increasing mode according to the slow starting signal; wherein the motor controller 14 determines that the motor is in the start state when the motor 13 in the non-operating state is started. And the motor controller 14 can slowly start the motor 13 according to the slow start signal sent by the central control module 11, so as to prevent sudden acceleration, threaten the safety of the user, and improve the user experience of the user.
In other embodiments, the process of the hub control module 11 sending the optimization command to the motor controller 14 according to the motor operation data includes: when the central control module 11 judges that the electric vehicle is in a downhill state according to the motor operation data, sending a downhill operation signal to the motor controller 14, so that the motor controller 14 can command the motor 13 to operate at a corresponding first moment according to the downhill operation signal, and command the motor to adjust the operation speed of the motor to a second specified value in a first speed adjustment mode; the electric vehicle can run at a more uniform speed when going downhill. The step of the central control module 11 determining that the electric vehicle is in the downhill state according to the motor operation data may include: the central control module 11 obtains the current torque of the electric vehicle according to the motor operation data, and determines that the electric vehicle is in the downhill state when the current torque is smaller than the minimum value of a preset torque range. And when the running torque of the electric vehicle is within the preset torque range, the electric vehicle can be judged to be located on a relatively stable road surface currently.
In other embodiments, when the central control module 11 determines that the electric vehicle is in an uphill state according to the motor operation data, it sends an uphill operation signal to the motor controller 14, so that the motor controller 14 can cause the motor 13 to operate with a corresponding second torque according to the uphill operation signal, and cause the motor 13 to adjust the operation speed of the motor 13 to a third specified value in a second speed adjustment mode. The electric vehicle can run at a more uniform speed when running on an uphill slope. The step of the central control module 11 determining that the electric vehicle is in an uphill state according to the motor operation data may include: the central control module 11 obtains the current torque of the electric vehicle according to the motor operation data, and determines that the electric vehicle is in the downhill state when the current torque is larger than the maximum value of the preset torque range.
In some embodiments, the electric vehicle control system 1 further includes a positioning module electrically connected to the central control module 11, and the status data of the electric vehicle includes electric vehicle position information obtained by the positioning module 11; the positioning module can be a combination of a GPS module and a Beidou system. Wherein, the process of the central control module 11 sending the optimization processing command to the motor controller 14 according to the motor operation data and/or the status data of the electric vehicle further includes:
in some embodiments, when the hub control module 11 determines that the electric vehicle is in a downhill state according to the electric vehicle position information and/or the motor operation data, the hub control module sends a downhill operation signal to the motor controller 14, so that the motor controller 14 instructs the motor 13 to operate at a corresponding first torque according to the downhill operation signal, and instructs the motor 13 to adjust the operation speed of the motor 13 to a second specified value in a first speed adjustment mode; the electric vehicle can run at a more uniform speed when going downhill. For example, the step of the central control module 11 determining that the electric vehicle is in a downhill state according to the electric vehicle position information and the motor operation data may include: the central control module 11 obtains the current torque of the electric vehicle according to the motor operation data, and when the current torque is smaller than a minimum value of a preset torque range, the central control module further determines that the electric vehicle is in the downhill state according to the position information of the electric vehicle when determining that the electric vehicle is in the downhill position. And when the running torque of the electric vehicle is within the preset torque range, the electric vehicle can be judged to be located on a relatively stable road surface currently.
In other embodiments, when the central control module 11 determines that the electric vehicle is in an uphill state according to the position information of the electric vehicle and/or the motor operation data, the central control module sends an uphill operation signal to the motor controller 14, so that the motor controller 14 causes the motor 13 to operate with a corresponding second torque according to the uphill operation signal, and causes the motor 13 to adjust the operation speed of the motor to a third specified value in a second speed adjustment mode. The electric vehicle can run at a more uniform speed when running on an uphill slope. For example, the step of the central control module 11 determining that the electric vehicle is in an uphill state according to the motor operation data and the electric vehicle position information may include: the central control module 11 obtains the current torque of the electric vehicle according to the motor operation data, and when the current torque is larger than the maximum value of the preset torque range, and further determines that the electric vehicle is in the downhill state when determining that the electric vehicle is in the uphill position according to the electric vehicle position information.
The positioning module can be used for judging whether the electric vehicle is in the uphill state or the downhill state currently, or the positioning module can be used for acquiring the position information of the electric vehicle and the motor operation data, so that whether the electric vehicle is in the uphill state or the downhill state currently can be judged more accurately. For example, when the current torque of the electric vehicle is smaller than the minimum value of the preset torque range and the current position of the electric vehicle is judged to be in a downhill position according to the positioning module, the electric vehicle is judged to be in the downhill state.
In some embodiments, the electric vehicle control system 1 further includes a voice module electrically connected to the motor controller 14, and the motor controller 14 is configured to cause the voice module to play a preset prompt voice when the electric vehicle is in the waiting state or when the electric vehicle is in the preparation completion state without receiving the pedal rotation signal. For example, when the motor controller 14 receives the waiting status sent by the central control module, the voice module is caused to play a voice of "please keep the balance of the vehicle" or "please hold the handle". For example, when the motor controller 14 receives the preparation completion status sent by the center control module 11 and does not receive the pedal rotation signal sent by the pedaling frequency sensor 15, the voice module is made to play a voice of "please press the pedal.
The electric vehicle control system 1 of the invention utilizes the detection of the central control module 11 and the pedaling frequency sensor 15 to provide a prejudgment condition for the motor controller 14 to control the operation of the motor 13 according to the speed control module 12, and when the preset safety condition is met, the motor controller 14 allows the operation of the motor 13 to be controlled according to the speed control module 12, thereby further ensuring the vehicle using safety of users.
Referring to fig. 3, a schematic operation flow diagram of the motor controller according to an embodiment of the invention is shown.
The method specifically comprises the following steps:
when the electric vehicle is powered on, the central control module 11 sends a power-on signal to the motor controller 14, and the motor controller 14 powers on the motor controller 14 and the motor 13 according to the power-on signal, and the motor controller 14 enters an idol state (i.e., a command waiting state or an idle state). When the motor controller 14 receives a speed request sent by the speed control module 12, it first determines whether the motor 13 is in a running state, and when the motor 13 is in the running state, directly allows the speed request, and outputs a corresponding PWM signal to the motor 13 according to the speed request to control the running of the motor 13, for example, to control the acceleration or deceleration of the motor 13, and when the motor 13 is in a running process, the motor controller 14 receives a braking request to stop the motor 13. And when the motor 13 does not receive the braking request in the running process, the motor controller 14 returns to the step of judging whether a speed request exists or not.
When the motor controller 14 receives the speed request sent by the speed control module 12 and determines that the motor 13 is in the non-running state, it continues to determine whether the electric vehicle is in the preparation completion state according to the detection result of the central control module 11, and when the electric vehicle is in the waiting state (non-preparation completion state), the motor controller 14 causes the voice module to perform a preset first voice prompt, for example, prompt "please hold the vehicle up", and returns to the step that the motor controller 14 enters the idol state. And when the electric vehicle is judged to be in a ready state according to the detection result of the central control module 11, whether the pedal rotation signal is received or not is continuously judged, and when the pedal rotation signal is not received, the voice module is made to play a preset second voice prompt, such as 'please pay attention to the pedal'. When the pedal rotation signal is received, the speed control module 12 allows a speed request and outputs a corresponding PWM signal to the motor 13 to control the operation of the motor 13.
In summary, the present invention provides an electric vehicle control system and an electric vehicle, wherein the electric vehicle control system includes a central control module for determining a state of the electric vehicle; the speed control module is used for generating a speed control signal according to speed regulation operation executed by a user; a motor; and the motor controller is electrically connected with the central control module, the speed control module and the motor and used for controlling the operation of the motor according to the state of the electric vehicle and the speed control signal when the motor is in a non-operation state. When the electric vehicle is started, the operation of the motor is allowed to be controlled according to the speed request of the speed control module only when the current starting condition is judged to be reached according to the detection result of the central control module, so that the safety performance of the electric vehicle in the use process can be effectively guaranteed, and the electric vehicle is prevented from being started accidentally. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (12)
1. An electric vehicle control system, comprising:
the central control module is used for judging the state of the electric vehicle;
the speed control module is used for generating a speed control signal according to speed regulation operation executed by a user;
a motor;
and the motor controller is electrically connected with the central control module, the speed control module and the motor and used for controlling the operation of the motor according to the state of the electric vehicle and the speed control signal when the motor is in a non-operation state.
2. The electric vehicle control system according to claim 1, wherein the state of the electric vehicle includes a waiting state and a ready completion state; and the motor controller is used for allowing the motor to be controlled to operate according to the speed control signal when the motor is in a non-operation state and the electric vehicle is in the preparation completion state.
3. The electric vehicle control system according to claim 1, further comprising a gyroscope electrically connected to the central control module, wherein the gyroscope is disposed on the electric vehicle, and the central control module determines that the electric vehicle is in the preparation completion state according to the gyroscope detecting that the electric vehicle is in the equilibrium state; and the central control module judges that the electric vehicle is in the waiting state when the gyroscope detects that the electric vehicle is in the unbalanced state.
4. The electric vehicle control system according to claim 3, further comprising a grip sensor electrically connected to the hub control module, wherein the grip sensor is mounted on a handlebar of the electric vehicle, and the hub control module determines that the electric vehicle is in the ready state according to the gyroscope detecting that the electric vehicle is in the equilibrium state and according to the grip sensor detecting that the handlebar is gripped; and the central control module judges that the electric vehicle is in the waiting state according to the situation that the gyroscope detects that the electric vehicle is in the unbalanced state or according to the situation that the grip sensor detects that the vehicle handle is not gripped.
5. The electric vehicle control system of claim 2, further comprising a step frequency sensor electrically connected to the motor controller, the step frequency sensor configured to generate a pedal rotation signal based on a detected rotation of the pedal and send the pedal rotation signal to the motor controller; the motor controller is used for controlling the operation of the motor according to the state of the electric vehicle, the pedal rotation signal and the speed control signal when the motor is in a non-operation state.
6. The electric vehicle control system according to claim 5, wherein the motor controller is configured to allow the motor to be controlled to operate according to the speed control signal to start the motor when it is acquired that the electric vehicle is in the preparation completion state and the pedal rotation signal is received while the motor is not operating.
7. The electric vehicle control system of claim 1, wherein the motor controller controls operation of the motor directly in accordance with the speed control signal when the speed control signal is received while the motor is in an operational state.
8. The electric vehicle control system of claim 1, wherein the hub control module is further configured to send optimization commands to the motor controller based on motor operating data and/or electric vehicle status data.
9. The system of claim 8, wherein the hub control module is further configured to send optimization commands to the motor controller based on the motor operating data, the optimization commands comprising:
the central control module sends a slow start signal to the motor controller when judging that the motor is in a start state according to the motor operation data, so that the motor controller can command the motor to gradually increase the motor operation speed to a first designated value in a corresponding speed increasing mode according to the slow start signal; and/or
The central control module sends a downhill operation signal to the motor controller when judging that the electric vehicle is in a downhill state according to the motor operation data, so that the motor controller can enable the motor to operate at a corresponding first moment according to the downhill operation signal and enable the motor to adjust the operation speed of the motor to a second designated value in a first speed adjustment mode; and/or
And when the central control module judges that the electric vehicle is in an uphill state according to the motor operation data, the central control module sends an uphill operation signal to the motor controller so that the motor controller can enable the motor to operate at a corresponding second moment according to the uphill operation signal and enable the motor to adjust the operation speed of the motor to a third specified value in a second speed adjustment mode.
10. The electric vehicle control system of claim 8, further comprising a positioning module electrically connected to the hub control module, wherein the status data of the electric vehicle includes electric vehicle location information obtained from the positioning module; wherein, the hub control module is further configured to send a process of optimizing a processing command to the motor controller according to the motor operation data and/or the status data of the electric vehicle, including:
the central control module sends a downhill running signal to the motor controller when judging that the electric vehicle is in a downhill state according to the position information of the electric vehicle and/or the motor running data, so that the motor controller can command the motor to run with a corresponding first moment according to the downhill running signal and can command the motor to adjust the running speed of the motor to a second designated value in a first speed adjustment mode; and/or
And when the central control module judges that the electric vehicle is in an uphill state according to the position information of the electric vehicle and/or the motor operation data, the central control module sends an uphill operation signal to the motor controller, so that the motor controller can enable the motor to operate at a corresponding second moment according to the uphill operation signal and enable the motor to adjust the operation speed of the motor to a third specified value in a second speed adjustment mode.
11. The electric vehicle control system according to claim 5, further comprising a voice module electrically connected to the motor controller, wherein the motor controller is configured to cause the voice module to play a preset prompt voice when the electric vehicle is in the waiting state or when the electric vehicle is in the preparation completion state without receiving the pedal rotation signal.
12. An electric vehicle comprising the electric vehicle control system according to any one of claims 1 to 11.
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