CN210912043U - Electric vehicle control system based on permanent magnet synchronous hub motor - Google Patents

Electric vehicle control system based on permanent magnet synchronous hub motor Download PDF

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Publication number
CN210912043U
CN210912043U CN201921475257.7U CN201921475257U CN210912043U CN 210912043 U CN210912043 U CN 210912043U CN 201921475257 U CN201921475257 U CN 201921475257U CN 210912043 U CN210912043 U CN 210912043U
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China
Prior art keywords
permanent magnet
magnet synchronous
battery
motor
hub motor
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Active
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CN201921475257.7U
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Chinese (zh)
Inventor
董李
解孝民
黄文章
刘泽文
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Guangdong Marshell Electric Vehicle Co ltd
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Guangdong Marshell Electric Vehicle Co ltd
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    • 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
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Abstract

An electric vehicle control system based on a permanent magnet synchronous hub motor comprises a main permanent magnet synchronous hub motor, a slave permanent magnet synchronous hub motor, a main motor controller, a slave motor controller, a battery, a vehicle-mounted charger and an SOC display system. The electric vehicle is powered by the two permanent magnet synchronous hub motors, and the electric energy generated by the two permanent magnet synchronous hub motors is used for charging the battery when the electric vehicle slides, so that the driving mileage of the electric vehicle is increased, and the driving force of the electric vehicle is also increased.

Description

Electric vehicle control system based on permanent magnet synchronous hub motor
Technical Field
The application relates to the technical field of electric vehicle control, in particular to an electric vehicle control system based on a permanent magnet synchronous hub motor.
Background
In recent years, with the rapid development of Chinese economy, an electric vehicle is taken as a convenient transportation tool to become an important transportation tool for the common people, so that specific low-speed roads set for the electric vehicle are more and more, and how to make the use efficiency of the electric vehicle higher, extend the continuous mileage, increase the driving force and the safety stability is the most needed problem to be solved in the field of electric vehicles.
Disclosure of Invention
The technical problem that this application mainly solved is how to prolong the continuation of the journey mileage of electric motor car and increase the drive power of electric motor car.
According to a first aspect, an embodiment provides an electric vehicle control system based on a permanent magnet synchronous hub motor, which comprises a master permanent magnet synchronous hub motor, a slave permanent magnet synchronous hub motor, a master motor controller, a slave motor controller, a battery, a vehicle-mounted charger and an SOC display system;
the master permanent magnet synchronous hub motor and the slave permanent magnet synchronous hub motor are respectively arranged on two wheels of the electric vehicle to respectively provide driving power for the two wheels of the electric vehicle;
the main motor controller is connected with the main permanent magnet synchronous hub motor and is used for controlling the main permanent magnet synchronous hub motor to rotate so as to drive one wheel of the electric vehicle;
the slave motor controller is connected with the slave permanent magnet synchronous hub motor and is used for controlling the rotation of the slave permanent magnet synchronous hub motor so as to drive the other wheel of the electric vehicle;
the master motor controller is connected with the slave motor controller and is also used for sending a control signal to the slave motor controller; the slave motor controller is also used for responding to the control signal to control the rotation of the slave permanent magnet synchronous hub motor;
the battery is respectively connected with the master permanent magnet synchronous hub motor and the slave permanent magnet synchronous hub motor and is used for providing power for the master permanent magnet synchronous hub motor and the slave permanent magnet synchronous hub motor;
the vehicle-mounted charger is connected with the battery and is used for charging the battery when the electric vehicle is connected with an external power supply;
the vehicle-mounted charger is also connected with the master permanent magnet synchronous hub motor and the slave permanent magnet synchronous hub motor and is used for charging the battery by electric energy generated by the master permanent magnet synchronous hub motor and/or the slave permanent magnet synchronous hub motor when the electric vehicle slides;
the SOC display system is connected with the battery and used for displaying the voltage state, the charging state and the electric quantity state of the battery.
Further, the battery includes a battery pack module and a battery manager; the battery pack module comprises a lithium battery pack; the battery manager comprises a battery cell voltage monitoring unit, a charging control unit and an electric quantity monitoring unit, and is used for monitoring the voltage state, the charging state and the electric quantity state of the battery; and the battery manager is connected with the SOC display system and used for monitoring the voltage state, the charging state and the electric quantity state of the battery and sending the monitored voltage state, the charging state and the electric quantity state to the SOC display system for display by the SOC display system.
Further, the charging control unit is connected with the vehicle-mounted charger and used for controlling the charging state of the battery.
Further, the battery manager also comprises a charging and discharging current monitoring unit which is connected with the SOC display system and used for monitoring the charging and discharging current of the battery and sending the charging and discharging current to the SOC display system;
the SOC display system is also used for displaying the charging and discharging current value of the battery.
Further, the battery manager also comprises a battery temperature sensor which is connected with the SOC display system and used for monitoring the temperature of the battery and sending the temperature to the SOC display system;
the SOC display system is also used for displaying the temperature value of the battery.
Further, the SOC display system also comprises a display switch for controlling the on-off state of the SOC display system;
the display switch is also connected with the battery manager and used for simultaneously closing the electric energy output of the battery when the display switch closes the SOC display system.
The system further comprises a master motor temperature sensor and a slave motor temperature sensor, which are used for respectively monitoring the temperature of the master permanent magnet synchronous hub motor and the slave permanent magnet synchronous hub motor;
the master motor temperature sensor and the slave motor temperature sensor are respectively connected with the SOC display system and used for sending the monitored temperatures of the master permanent magnet synchronous hub motor and the slave permanent magnet synchronous hub motor to the SOC display system;
the SOC display system is also used for displaying the temperatures of the master permanent magnet synchronous hub motor and the slave permanent magnet synchronous hub motor.
Further, the master permanent magnet synchronous hub motor and the slave permanent magnet synchronous hub motor are connected through a CAN bus.
Further, the emergency stop switch is connected with the main motor controller, and the emergency stop switch is connected with the main motor controller;
the instrument panel is used for displaying the rotating speed of the main permanent magnet synchronous hub motor;
the emergency stop switch is used for controlling the main permanent magnet synchronous hub motor to stop rotating;
the gear switch is used for controlling the working gear of the main permanent magnet synchronous hub motor;
the key switch is used for controlling the on-off state of the main motor controller.
According to a second aspect, an embodiment provides an electric vehicle comprising the electric vehicle control system of the first aspect.
According to the embodiment, the electric vehicle control system based on the permanent magnet synchronous hub motor comprises a master permanent magnet synchronous hub motor, a slave permanent magnet synchronous hub motor, a master motor controller, a slave motor controller, a battery, a vehicle-mounted charger and an SOC display system. The electric vehicle is powered by the two permanent magnet synchronous hub motors, and the electric energy generated by the two permanent magnet synchronous hub motors is used for charging the battery when the electric vehicle slides, so that the driving mileage of the electric vehicle is increased, and the driving force of the electric vehicle is also increased.
Drawings
FIG. 1 is a schematic structural diagram of an electric vehicle according to an embodiment;
FIG. 2 is a block diagram of an electric vehicle control system based on a permanent magnet synchronous hub motor according to an embodiment;
fig. 3 is a schematic circuit diagram of an electric vehicle control system based on a permanent magnet synchronous hub motor in an embodiment.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
In the embodiment of the invention, the two permanent magnet synchronous hub motors are adopted to provide power for the electric vehicle, and when the electric vehicle slides, the electric energy generated by the two permanent magnet synchronous hub motors is used for charging the battery, so that the electric vehicle not only increases the endurance mileage, but also increases the driving force of the electric vehicle.
Example one
Referring to fig. 1, a schematic structural diagram of an electric vehicle according to an embodiment of the present invention includes a master permanent magnet synchronous in-wheel motor 10, a slave permanent magnet synchronous in-wheel motor 20, a master motor controller 30, a slave motor controller 40, a battery 50, an on-board charger 60, and an SOC display system 70. The master permanent magnet synchronous hub motor 10 and the slave permanent magnet synchronous hub motor 20 are respectively arranged on two wheels of the electric vehicle to respectively provide driving power for the two wheels of the electric vehicle. The main motor controller 30 is connected to the main permanent magnet synchronous hub motor 10, and is configured to control rotation of the main permanent magnet synchronous hub motor 10 to drive a wheel of the electric vehicle. The slave motor controller 40 is connected to the slave permanent magnet synchronous in-wheel motor 20 for controlling the rotation of the slave permanent magnet synchronous in-wheel motor 20 to drive another wheel of the electric vehicle. The master motor controller 30 is connected to the slave motor controller 10. The battery 50 is connected to the master permanent magnet synchronous hub motor 10 and the slave permanent magnet synchronous hub motor 20 respectively, and is used for providing power to the master permanent magnet synchronous hub motor 10 and the slave permanent magnet synchronous hub motor 20. The vehicle-mounted charger 60 is connected to the battery 50, and is used for charging the battery 50 when the electric vehicle is connected to an external power supply. The vehicle-mounted charger 60 is also connected with the master permanent magnet synchronous in-wheel motor 10 and the slave permanent magnet synchronous in-wheel motor 20, and is used for charging the battery 50 by the electric energy generated by the master permanent magnet synchronous in-wheel motor 10 and/or the slave permanent magnet synchronous in-wheel motor 20 when the electric vehicle is coasting. The SOC display system 70 is connected to the battery 60 for displaying a voltage state, a charge state, and a charge state of the battery.
Referring to fig. 2, the structural block diagram of an electric vehicle control system based on a permanent magnet synchronous in-wheel motor in an embodiment includes a master permanent magnet synchronous in-wheel motor 102, a slave permanent magnet synchronous in-wheel motor 103, a master motor controller 100, a slave motor controller 101, a battery 104, an on-board charger 105, an SOC display system 106, an emergency stop switch 111, a key switch 110, a gear switch 109, an accelerator 108, and a meter 107. The master permanent magnet synchronous hub motor 102 and the slave permanent magnet synchronous hub motor 103 are respectively arranged on two wheels of the electric vehicle to respectively provide driving power for the two wheels of the electric vehicle. The main motor controller 100 is connected to the main pmsm hub motor 102, and is configured to control rotation of the main pmsm hub motor 102 to drive a wheel of the electric vehicle. The slave motor controller 101 is connected to the slave permanent magnet synchronous in-wheel motor 103, and is used for controlling the rotation of the slave permanent magnet synchronous in-wheel motor 103 to drive another wheel of the electric vehicle. The master motor controller 100 is connected to the slave motor controller 101. The battery 104 is connected to the master permanent magnet synchronous hub motor 102 and the slave permanent magnet synchronous hub motor 103, respectively, and is configured to provide power to the master permanent magnet synchronous hub motor 102 and the slave permanent magnet synchronous hub motor 103. The vehicle-mounted charger 105 is connected with the battery 104 and is used for charging the battery 104 when the electric vehicle is connected with an external power supply. The vehicle-mounted charger 105 is also connected with the master permanent magnet synchronous hub motor 102 and the slave permanent magnet synchronous hub motor 103, and is used for charging the battery 104 by the electric energy generated by the master permanent magnet synchronous hub motor 102 and/or the slave permanent magnet synchronous hub motor 103 when the electric vehicle slides. The SOC display system 106 is connected to the battery 104 for displaying the voltage state, the charge state, and the charge state of the battery. The battery 104 includes a battery pack module and a battery manager, the battery pack module includes a lithium battery pack, and the battery manager includes a cell voltage monitoring unit, a charging control unit, and an electric quantity monitoring unit, and is configured to monitor a voltage state, a charging state, and an electric quantity state of the battery. The battery manager is connected with the SOC display system 106, and sends the voltage state, the charge state, and the electric quantity state of the battery to be monitored to the SOC display system for display by the SOC display system. The charging control unit is connected to the in-vehicle charger 105, and controls the charging state of the battery 104. In an embodiment, the battery manager further includes a charging and discharging current monitoring unit, connected to the SOC display system 106, for monitoring the charging and discharging current of the battery and sending the charging and discharging current to the SOC display system 106. The SOC display system 106 is also used to display the charge and discharge current value of the battery 104. In one embodiment, the battery manager further comprises a battery temperature sensor, connected to the SOC display system 106, for monitoring the temperature of the battery 104 and transmitting the temperature to the SOC display system 106. The SOC display system 106 is also used to display a temperature value of the battery 104. In one embodiment, the SOC display system 106 further includes a display switch for controlling the on/off state of the SOC display system 106. In one embodiment, the display switch is also coupled to the battery manager for simultaneously turning off the power output of the battery 104 when the display switch turns off the SOC display system 106. In one embodiment, the electric vehicle control system further comprises a master motor temperature sensor and a slave motor temperature sensor for monitoring the temperature of the master permanent magnet synchronous in-wheel motor 102 and the slave permanent magnet synchronous in-wheel motor 103 respectively. The master motor temperature sensor and the slave motor temperature sensor are respectively connected with the SOC display system 106, and are used for sending the monitored temperatures of the master permanent magnet synchronous hub motor 102 and the slave permanent magnet synchronous hub motor 103 to the SOC display system 106. The SOC display system 106 is also used for displaying the temperature of the master permanent magnet synchronous hub motor 102 and the slave permanent magnet synchronous hub motor 103. In one embodiment, the master permanent magnet synchronous hub motor 102 and the slave permanent magnet synchronous hub motor 103 are connected through a CAN bus. In one embodiment, the electric vehicle control system further includes a meter 107, an emergency stop switch 111, a shift switch 109, a key switch 110, and an accelerator 108, which are connected to the main motor controller 100, respectively. The meter 107 is used for displaying the rotation speed of the main permanent magnet synchronous hub motor 102. The emergency stop switch 111 is used to control the stall of the main permanent magnet synchronous in-wheel motor 102. The gear switch 109 is used for controlling the working gear of the main permanent magnet synchronous hub motor 102. The key switch 110 is used to control the on-off state of the main motor controller 100. The accelerator 108 is used for controlling the acceleration state of the main permanent magnet synchronous hub motor 102.
Referring to fig. 3, the electric vehicle control system based on the permanent magnet synchronous in-wheel motor in an embodiment includes a master permanent magnet synchronous in-wheel motor 102, a slave permanent magnet synchronous in-wheel motor 103, a master motor controller 100, a slave motor controller 101, a battery 104, an on-board charger 105, an SOC display system 106, an emergency stop switch 111, a key switch 110, a gear switch 109, an accelerator 108 and a meter 107, a CAN bus 112, a slave motor contactor 114, a master motor contactor 113, a slave motor temperature sensor 116, and a master motor temperature sensor 115. The battery 104 is connected to the master motor controller 100 through a contactor 113, and the battery 104 is connected to the slave motor controller 101 through a slave motor contactor 114 to supply power to the master motor controller 100 and the slave motor controller 101. The vehicle-mounted charger 105 supplements energy to the battery 104, the SOC display system 106 displays the voltage state, the electric quantity state and the charging state of the battery 104 through data connection, and the power supply 104 can be shut down. The power supply is also controlled by the emergency stop switch 111 and the key switch 110, respectively, to control the supply of the enable control power to the master motor controller 100 and the slave motor controller 101. The gear switch 109 for controlling the electric vehicle to move forward and backward provides an operation direction instruction for the main motor controller 100, when the accelerator 108 is stepped on, the main motor controller 100 receives an acceleration operation signal, the main motor controller 100 outputs the acceleration operation signal to the main permanent magnet synchronous hub motor 102, meanwhile, the torque is sent to the slave motor controller 101 through the CAN bus 112 to drive the slave permanent magnet synchronous hub motor 103 to operate, and the main permanent magnet synchronous hub motor 102 and the slave permanent magnet synchronous hub motor 103 drive the electric vehicle to stably operate in a torque control mode of the electric vehicle. The main motor controller 100 is connected to the main pmsm hub motor 102, and is configured to control rotation of the main pmsm hub motor 102 to drive a wheel of the electric vehicle. The slave motor controller 101 is connected to the slave permanent magnet synchronous in-wheel motor 102, and is used for controlling the rotation of the slave permanent magnet synchronous in-wheel motor 102 to drive another wheel of the electric vehicle. The master motor controller 100 is connected to the slave motor controller 101, the master motor controller 100 further configured to send a control signal to the slave motor controller 101, and the slave motor controller 101 further configured to control rotation of the slave pm synchronous in-wheel motor 103 in response to the control signal. While the vehicle is running, the master motor temperature sensor 115 of the master permanent magnet synchronous hub motor 102 provides a motor temperature signal to the master motor controller 100, the slave motor temperature sensor 116 of the slave motor temperature sensor 116 provides a temperature signal to the slave motor controller 101, and the master motor controller 100 and the slave motor controller 101 monitor the temperature of the master permanent magnet synchronous hub motor 102 and the slave permanent magnet synchronous hub motor 103 in real time to ensure that the master permanent magnet synchronous hub motor 102 and the slave permanent magnet synchronous hub motor 103 run at a safe temperature.
In one embodiment, the battery 104 is a lithium battery module including a lithium iron phosphate battery pack and a battery manager, and the module has high energy density, ultra-long cycle life, and good temperature characteristics, and is a new generation of green energy with excellent safety and reliability. The battery manager comprises the functions of cell voltage monitoring, charge and discharge current monitoring, hardware protection, discharge control, charge control, temperature monitoring, communication, working state display, fault alarm and the like. The vehicle-mounted charger 105 is a power supplement unit of the lithium battery module, the vehicle-mounted charger 105 converts the alternating current outside the vehicle into direct current to supplement the power to the lithium battery module through automatic control, and meanwhile, when the electric quantity of the lithium battery module is insufficient, charging supplement can be carried out through the power supplement unit. During charging, the vehicle-mounted charger 105 and the lithium battery module perform real-time data communication, so that the charging current and the charging voltage can be monitored, the lithium battery module is fully charged and well charged, and the lithium battery module is not undercharged or overcharged, thereby exerting the maximum efficiency of the lithium battery module and ensuring the service life of the lithium battery module. The SOC display system 106 is composed of a monitoring module and a control panel, and displays the voltage state, the charging state, and the battery electric quantity state of the lithium battery module in real time, and can realize shutdown operation. The lithium battery module can automatically wake up and start up after being shut down through charging, the emergency stop switch can cut off the power supply of the whole vehicle, when the vehicle is in an uncontrollable emergency state, the emergency switches at two operating positions at two ends of the vehicle can be tapped off at the first time, the power supply of the whole vehicle is cut off, the situation further development is avoided, the instrument is installed on a meter panel, a key switch, a gear switch and an accelerator are installed on the meter panel, when the key switch is turned on, when the gear switch is arranged in a forward gear or a backward gear, and when the accelerator is stepped on, the permanent magnet differential speed hub master controller and the slave controller respectively output to corresponding permanent magnet synchronous hub motors, the vehicle runs in the direction of the corresponding gear, a torque mode is adopted for control, and the master motor controller and the slave motor controller automatically realize differential speed control of the two permanent magnet synchronous hub.
The application also discloses an electric motor car, adopts as above the electric motor car control system based on synchronous in-wheel motor of permanent magnetism, be applicable to on the low-speed road, its efficient, light in weight, double round drive, continuation journey length, operation are stable, safe in utilization. When the driver turns on the electronic lock, the forward and backward gear switch is arranged at a corresponding gear, the output of the permanent magnet synchronous controller is adjusted in a stepless mode by stepping on the accelerator, the permanent magnet synchronous controller provides driving terminal control for the permanent magnet synchronous motor, when the accelerator is released and descended, the permanent magnet synchronous motor becomes a generator, kinetic energy of a vehicle is converted into electric energy, regenerative braking is generated, and the converted electric energy is recycled to the lithium battery module for storage through the permanent magnet synchronous controller.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims (10)

1. An electric vehicle control system based on a permanent magnet synchronous hub motor is characterized by comprising a master permanent magnet synchronous hub motor, a slave permanent magnet synchronous hub motor, a master motor controller, a slave motor controller, a battery, a vehicle-mounted charger and an SOC display system;
the master permanent magnet synchronous hub motor and the slave permanent magnet synchronous hub motor are respectively arranged on two wheels of the electric vehicle to respectively provide driving power for the two wheels of the electric vehicle;
the main motor controller is connected with the main permanent magnet synchronous hub motor;
the slave motor controller is connected with the slave permanent magnet synchronous hub motor;
the master motor controller is connected with the slave motor controller;
the battery is respectively connected with the master permanent magnet synchronous hub motor and the slave permanent magnet synchronous hub motor and is used for providing power for the master permanent magnet synchronous hub motor and the slave permanent magnet synchronous hub motor;
the vehicle-mounted charger is connected with the battery and is used for charging the battery when the electric vehicle is connected with an external power supply;
the vehicle-mounted charger is also connected with the master permanent magnet synchronous hub motor and the slave permanent magnet synchronous hub motor and is used for charging the battery by electric energy generated by the master permanent magnet synchronous hub motor and/or the slave permanent magnet synchronous hub motor when the electric vehicle slides;
the SOC display system is connected with the battery and used for displaying the voltage state, the charging state and the electric quantity state of the battery.
2. The electric vehicle control system of claim 1, wherein the battery comprises a battery pack module and a battery manager;
the battery pack module comprises a lithium battery pack;
the battery manager comprises a battery cell voltage monitoring unit, a charging control unit and an electric quantity monitoring unit, and is used for monitoring the voltage state, the charging state and the electric quantity state of the battery;
and the battery manager is connected with the SOC display system and used for monitoring the voltage state, the charging state and the electric quantity state of the battery and sending the monitored voltage state, the charging state and the electric quantity state to the SOC display system for display by the SOC display system.
3. The electric vehicle control system according to claim 2, wherein the charge control unit is connected to the on-vehicle charger for controlling a state of charge of the battery.
4. The control system of the electric vehicle according to claim 2, wherein the battery manager further comprises a charge and discharge current monitoring unit connected to the SOC display system for monitoring the charge and discharge current of the battery and transmitting the charge and discharge current to the SOC display system;
the SOC display system is also used for displaying the charging and discharging current value of the battery.
5. The electric vehicle control system of claim 2, wherein the battery manager further comprises a battery temperature sensor coupled to the SOC display system for monitoring the temperature of the battery and transmitting to the SOC display system;
the SOC display system is also used for displaying the temperature value of the battery.
6. The control system of an electric vehicle of claim 2, wherein the SOC display system further comprises a display switch for controlling a switch state of the SOC display system;
the display switch is also connected with the battery manager and used for simultaneously closing the electric energy output of the battery when the display switch closes the SOC display system.
7. The electric vehicle control system of claim 1, further comprising a master motor temperature sensor and a slave motor temperature sensor for monitoring the temperature of the master and slave permanent magnet synchronous in-wheel motors, respectively;
the master motor temperature sensor and the slave motor temperature sensor are respectively connected with the SOC display system and used for sending the monitored temperatures of the master permanent magnet synchronous hub motor and the slave permanent magnet synchronous hub motor to the SOC display system;
the SOC display system is also used for displaying the temperatures of the master permanent magnet synchronous hub motor and the slave permanent magnet synchronous hub motor.
8. The electric vehicle control system of claim 1, wherein the master permanent magnet synchronous in-wheel motor and the slave permanent magnet synchronous in-wheel motor are connected via a CAN bus.
9. The electric vehicle control system of claim 1, further comprising a dashboard, an emergency stop switch, a range switch, and a key switch, each connected to the main motor controller;
the instrument panel is used for displaying the rotating speed of the main permanent magnet synchronous hub motor;
the emergency stop switch is used for controlling the main permanent magnet synchronous hub motor to stop rotating;
the gear switch is used for controlling the working gear of the main permanent magnet synchronous hub motor;
the key switch is used for controlling the on-off state of the main motor controller.
10. An electric vehicle characterized by comprising the electric vehicle control system according to any one of claims 1 to 9.
CN201921475257.7U 2019-09-05 2019-09-05 Electric vehicle control system based on permanent magnet synchronous hub motor Active CN210912043U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921475257.7U CN210912043U (en) 2019-09-05 2019-09-05 Electric vehicle control system based on permanent magnet synchronous hub motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921475257.7U CN210912043U (en) 2019-09-05 2019-09-05 Electric vehicle control system based on permanent magnet synchronous hub motor

Publications (1)

Publication Number Publication Date
CN210912043U true CN210912043U (en) 2020-07-03

Family

ID=71354237

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921475257.7U Active CN210912043U (en) 2019-09-05 2019-09-05 Electric vehicle control system based on permanent magnet synchronous hub motor

Country Status (1)

Country Link
CN (1) CN210912043U (en)

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