阅读说明：本技术 一种集成式电机控制模块和系统 (integrated motor control module and system ) 是由 李春青 靳超 张君怡 李静 于 2018-07-03 设计创作，主要内容包括：本发明涉及一种集成式电机控制模块和系统,属于新能源电动汽车应用领域。该控制模块包括电池连接端子、换流器、电池管理系统和电机控制器,该电池连接端子通过主回路继电器与直流线路连接,该直流线路上并联设有充电机连接端子和换流器直流侧端子,该换流器的交流侧端子用于与电机供电连接,该电池管理系统与该主回路继电器控制连接,该电机控制器与该换流器控制连接。该控制系统包括上述控制模块、电池和电机。解决了目前电机控制模块和系统成本高、控制复杂的问题。(The invention relates to integrated motor control modules and systems, belonging to the application field of new energy electric vehicles, wherein the control module comprises a battery connecting terminal, a current converter, a battery management system and a motor controller, the battery connecting terminal is connected with a direct current circuit through a main loop relay, a charger connecting terminal and a current converter direct current side terminal are arranged on the direct current circuit in parallel, an alternating current side terminal of the current converter is used for being connected with a motor in a power supply mode, the battery management system is connected with the main loop relay in a control mode, and the motor controller is connected with the current converter in a control mode.)

The integrated motor control module is characterized by comprising a battery connecting terminal, a charger connecting terminal, an inverter, a battery management system and a motor controller, wherein the battery connecting terminal is connected with a direct current line through a main loop relay, the charger connecting terminal and a direct current side terminal of the inverter are connected to the direct current line in parallel, an alternating current side terminal of the inverter is used for being connected with a motor in a power supply mode, the battery management system is in control connection with the main loop relay, and the motor controller is in control connection with the inverter;

the integrated motor control module also comprises at least pre-charging branches, wherein the pre-charging branches are connected with the main loop relay in parallel, pre-charging resistors and pre-charging relays are connected on the pre-charging branches in series, and the battery management system is connected with the pre-charging relays in a control mode.

2. The integrated motor control module according to claim 1, wherein a controllable heating circuit connection terminal is further connected in parallel to the dc line, and the battery management system is in control connection with the controllable heating circuit connection terminal.

3. The integrated motor control module of claim 2 further comprising a housing on which the battery connection terminal, the charger connection terminal, the inverter ac-side terminal, and the controllable heating circuit connection terminal are disposed.

4. The integrated motor control module of claim 1, wherein a fuse protector is further provided in series with the dc line.

5. The integrated motor control module of claim 1 wherein the converter is an IGBT converter.

6, integrated motor control systems, which are characterized by comprising an integrated motor control module, a battery and a motor, wherein the integrated motor control module comprises a battery connecting terminal, a charger connecting terminal, a current converter, a battery management system and a motor controller, the battery connecting terminal is connected with a direct current line through a main loop relay, the charger connecting terminal and a direct current side terminal of the current converter are connected in parallel on the direct current line, an alternating current side terminal of the current converter is used for being connected with the motor in a power supply manner, the battery management system is in control connection with the main loop relay, and the motor controller is in control connection with the current converter;

the integrated motor control module also comprises at least pre-charging branches, wherein the pre-charging branches are connected with the main loop relay in parallel, pre-charging resistors and pre-charging relays are connected in series on the pre-charging branches, and the battery management system is connected with the pre-charging relays in a control way;

the battery is electrically connected to the battery connection terminal, and the motor is electrically connected to an ac-side terminal of the inverter.

7. The integrated motor control system according to claim 6, further comprising a heater for heating the battery, wherein the dc line is further connected in parallel with a controllable heating circuit connection terminal, the heater is electrically connected to the controllable heating circuit connection terminal through a heating circuit, and the battery management system is in control connection with the controllable heating circuit connection terminal.

8. The integrated motor control system of claim 7 further comprising a housing on which the battery connection terminals, the charger connection terminals, the inverter ac-side terminal, and the controllable heating circuit connection terminals are disposed.

9. The integrated motor control system according to claim 6, wherein a fuse protector is further provided in series on the dc line.

10. The integrated motor control system of claim 6 wherein the inverter is an IGBT inverter.

Technical Field

The invention relates to integrated motor control modules and systems, and belongs to the field of new energy electric vehicle application.

Background

The main current battery driving scheme of the new energy electric vehicle is a lithium ion battery pack, key components of the lithium battery pack are a battery management system, the battery management system manages the whole life process of the lithium battery pack, and the lithium battery pack drives a main motor through a motor controller, the conventional motor controller and the battery management system are both packaged assembly modules directly provided by suppliers, so that the motor controller and the battery management system are both separately arranged at present, fig. 1 is a structural schematic diagram of conventional motor control systems, wherein the battery management system needs to be provided with battery high-voltage boxes, a charging loop relay and a heating relay are arranged in the high-voltage boxes to control the charging and heating functions of the battery, integrated motor controllers are additionally arranged to be used for placing the motor controller, a discharging loop relay, a pre-charging loop and an IGBT converter are further arranged in the integrated motor controller, the motor controller is responsible for on-off control of the main loop, the main loop relay is used for performing on-off control of the vehicle controller after receiving a command of the main loop control of the vehicle controller, the main loop control relay is a logical structure of the system, the main loop relay, the charging loop relay and the battery management relay are additionally arranged according to the control system, the charging loop control system, the charging relay, the charging loop control cost of the charging relay and the charging relay is increased, the charging relay is increased, the control relay is increased cost of the main loop control relay, the charging relay is increased, the control relay is increased by the control relay.

Disclosure of Invention

The invention aims to provide integrated motor control modules to solve the problems of high cost and complex control of the existing motor control modules, and also provides integrated motor control systems.

In order to achieve the purpose, the invention provides integrated motor control modules, which comprise a battery connecting terminal, a charger connecting terminal, an inverter, a battery management system and a motor controller, wherein the battery connecting terminal is connected with a direct current line through a main circuit relay, the charger connecting terminal and a direct current side terminal of the inverter are connected on the direct current line in parallel, an alternating current side terminal of the inverter is used for being connected with a motor in a power supply mode, the battery management system is connected with the main circuit relay in a control mode, the motor controller is connected with the inverter in a control mode, the integrated motor control module further comprises at least pre-charging branches, the pre-charging branches are connected with the main circuit relay in parallel, a pre-charging resistor and a pre-charging relay are arranged on the pre-charging branches in series, and the battery management system is connected with the.

This scheme is integrated in integrated form motor control module with battery management system, current charge circuit relay and discharge circuit relay have been cancelled simultaneously, and main loop relay has been set up on the main loop, battery management system is after receiving the vehicle control unit instruction, accomplish the charge control or the discharge control to the battery through the switch of control main loop relay, it is with loop design to have realized charging and discharging, retrench and optimized the control to the relay in the control module, simultaneously owing to integrate battery management system and motor controller in motor control module, high-voltage box has been cancelled, the space has been reduced, and the cost is reduced.

In addition, the integrated motor control module according to the present invention may further have the following additional technical features:

in the invention, the direct current line is also provided with a controllable heating loop connecting terminal in parallel, and the battery management system is connected with the controllable heating loop connecting terminal in a control way.

In the invention, the integrated motor control module further comprises a shell, and the battery connecting terminal, the charger connecting terminal, the alternating current side terminal of the converter and the controllable heating circuit connecting terminal are all arranged on the shell.

In the invention, a fusing protector is also arranged on the direct current line in series.

In the present invention, the inverter is an IGBT inverter.

The invention also provides an integrated motor control system, which comprises an integrated motor control module, a battery and a motor, wherein the integrated motor control module comprises a battery connecting terminal, a charger connecting terminal, an inverter, a battery management system and a motor controller, the battery connecting terminal is connected with a direct current line through a main loop relay, the charger connecting terminal and a direct current side terminal of the inverter are connected in parallel on the direct current line, an alternating current side terminal of the inverter is used for being connected with the motor in a power supply mode, the battery management system is connected with the main loop relay in a control mode, the motor controller is connected with the inverter in a control mode, the integrated motor control module further comprises at least pre-charging branches, the pre-charging branches are connected with the main loop relay in parallel, a pre-charging resistor and a pre-charging relay are connected on the pre-charging branches in series, the battery management system is connected with the pre-charging relay in a control mode, the battery is electrically connected with the battery connecting terminal.

This scheme is integrated in integrated form motor control module with battery management system, current charge circuit relay and discharge circuit relay have been cancelled simultaneously, and main loop relay has been set up on the main loop, battery management system is after receiving the vehicle control unit instruction, accomplish the charge control or the discharge control to the battery through the switch of control main loop relay, it is with loop design to have realized charging and discharging, retrench and optimized the control to the relay in the control module, simultaneously owing to integrate battery management system and motor controller in motor control module, high-voltage box has been cancelled, the space has been reduced, and the cost is reduced.

In addition, the integrated motor control system according to the present invention may further have the following additional technical features:

in the invention, the control system also comprises a heater for heating the battery, the direct current line is also provided with a controllable heating loop connecting terminal in parallel, the heater is electrically connected with the controllable heating loop connecting terminal through a heating loop, and the battery management system is in control connection with the controllable heating loop connecting terminal.

In the invention, the integrated motor control module further comprises at least pre-charging branches, the integrated motor control module further comprises a shell, and the battery connecting terminal, the charger connecting terminal, the alternating current side terminal of the converter and the controllable heating circuit connecting terminal are all arranged on the shell.

In the invention, a fusing protector is also arranged on the direct current line in series.

In the present invention, the inverter is an IGBT inverter.

Drawings

FIG. 1 is a schematic diagram of an prior art motor control system;

FIG. 2 is a schematic diagram of an embodiment of integrated motor control systems according to the present invention;

FIG. 3 is a schematic diagram of integrated motor control modules according to the present invention;

the system comprises a battery high-voltage box A, an integrated motor controller B, an integrated motor control module C, a battery 1, a battery management system 2, a motor controller 3, a converter 4, a heater 5, a pre-charging resistor 6, a charger 7, a current sensor 8, a fuse protector 9, a charging loop relay S1, a discharging loop relay S2, a heating loop relay S3, a pre-charging relay S4, a main loop relay S5, a battery connecting terminal P1 and a charger connecting terminal P2.

Detailed Description

The following describes in step an embodiment of the present invention in conjunction with the drawings.

Integrated motor control system embodiment of the present invention:

fig. 2 is a schematic diagram of an embodiment of integrated motor control systems according to the present invention, which includes a battery, a heater, and an integrated motor control module, wherein the heater is used for heating the battery, the integrated motor control module includes a battery connection terminal, a battery management system, a motor controller, and an IGBT inverter, the battery connection terminal is connected to a dc line through a main circuit relay, a fuse protector, and a current sensor, the dc line is connected in parallel to a charger connection terminal, an inverter dc side terminal, and a heating circuit connection terminal, the heating circuit connection terminal is electrically connected to the heater through the heating circuit relay, the integrated motor control module further includes a pre-charging branch connected in parallel to main circuit relays, the pre-charging branch is connected in series to a resistor and a pre-charging relay, an ac side terminal of the IGBT inverter is used for power connection to the motor, the battery management system is respectively connected to the main circuit relay, the heating circuit, and the pre-charging relay, the battery management system is also connected to a current sensor sampling control, the motor controller controls an output voltage of the IGBT inverter through a PWM signal to control the operation of the motor, the battery is electrically connected to the battery and the.

When the control system needs to supply power to the motor, the vehicle control unit commands the battery management system to close the main loop relay, and at the moment, the battery discharges for the motor through the current converter; when the battery needs to be charged, the charger is firstly connected with the charger connecting terminal, then the vehicle control unit commands the battery management system to close the main loop relay, and meanwhile the motor controller controls the converter to be locked, so that the charger supplies power to the battery through the charger connecting terminal.

In the embodiment, the main loop relay is used for replacing the existing charging loop relay and the existing discharging loop relay, so that the design of charging and discharging the same loop is realized, the use of the relay is saved, a high-voltage box is eliminated, the cost is reduced, the space of the whole system is reduced, more space can be made for placing batteries, the energy density of the battery system is increased, and meanwhile, the control strategy of the whole system is optimized because the battery management system is used for simultaneously controlling the heating loop relay, the pre-charging relay and the main loop relay.

Integrated motor control module embodiment of the invention:

fig. 3 is a schematic diagram of a simplest structure of integrated motor control modules according to the present invention, and in practical applications, the specific embodiment of the simplest structure is the same as that of the integrated motor control module in the above-mentioned integrated motor control system embodiment, which is not repeated herein.

In the above embodiment, the main circuit relay and the heating circuit relay are respectively arranged on the positive bus and the negative bus of the dc circuit of the integrated motor control module, and in practical application, the corresponding relays may be arranged on the positive bus or the negative bus individually according to requirements.

When the product is formed, the positions of all parts can be set according to the heat dissipation requirement and the strong and weak current safety protection, and meanwhile, in consideration of the convenience of assembly, the scheme guided by the above improved idea also falls into the protection scope of the invention.

The specific embodiments are given above, but the present invention is not limited to the described embodiments. The basic idea of the present invention is to provide the basic solution described above, and variations, modifications, replacements, and variations of the embodiments can be made without departing from the principle and spirit of the present invention, and still fall within the protection scope of the present invention.