CN210191174U - Integrated pure electric vehicle drive controller - Google Patents
Integrated pure electric vehicle drive controller Download PDFInfo
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- CN210191174U CN210191174U CN201920819742.5U CN201920819742U CN210191174U CN 210191174 U CN210191174 U CN 210191174U CN 201920819742 U CN201920819742 U CN 201920819742U CN 210191174 U CN210191174 U CN 210191174U
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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
- Y02T10/72—Electric energy management in electromobility
Abstract
The utility model discloses an integrated pure electric vehicle drive controller, wherein a low-voltage input port of a low-voltage connector is connected with a main control board, the main control board is connected with a gate electrode drive module, and the gate electrode drive module is connected with an IGBT module; the high-voltage input port of the high-voltage connector is connected with the capacitor bank, the capacitor bank is connected with the IGBT module, the IGBT module is connected with the current sensor, and the current sensor is connected with the high-voltage output port of the high-voltage connector. The utility model discloses integrated vehicle control unit and machine controller's function for vehicle drive control calculates and concentrates on the main control board like this, and the response is fast, and efficiency has improved, owing to need not pass through CAN bus transmission information between vehicle control unit and machine controller, does not have external disturbance's condition promptly, and the security also obtains the guarantee. Only one main control board is used, and circuit boards such as a main control chip and peripheral circuits of the whole vehicle controller are completely omitted, so that the cost of the whole vehicle is greatly reduced.
Description
The technical field is as follows:
the utility model relates to an integrated form pure electric vehicles drive controller.
Background art:
in the existing automobile, a Vehicle Control Unit (VCU) and a Motor Control Unit (MCU) are designed separately, or the VCU and the MCU are packaged in a single housing, and a vehicle driving part acquires the intention of a driver and receives the motor state sent by the MCU, so as to calculate a target torque, and then sends the target torque to the MCU for execution.
The first disadvantage is that: the running control of the automobile needs the tight matching of various mechanical and electronic components, particularly the control of a motor needs faster response precision, the signal transmission flow of the current mode is longer, and necessary time delay exists.
The second disadvantage is that: the VCU and the MCU work separately, and the MCU belongs to high-voltage equipment, so that interference is easily generated on communication between the VCU and the MCU, and the driving safety is influenced.
The third disadvantage is that: the VCU and the MCU are packaged in a shell through two control modules, and hardware resource waste is formed.
The invention content is as follows:
the utility model relates to a solve the problem that above-mentioned prior art exists and provide an integrated form pure electric vehicles drive controller.
The utility model discloses the technical scheme who adopts has:
the utility model provides an integrated form pure electric vehicles drive controller which characterized in that: the low-voltage power supply comprises a main control board, a gate pole driving module, a capacitor bank, an IGBT module, a current sensor, a low-voltage connector and a high-voltage connector, wherein a low-voltage input port of the low-voltage connector is connected with the main control board, the main control board is connected with the gate pole driving module, and the gate pole driving module is connected with the IGBT module; the high-voltage input port of the high-voltage connector is connected with the capacitor bank, the capacitor bank is connected with the IGBT module, the IGBT module is connected with the current sensor, and the current sensor is connected with the high-voltage output port of the high-voltage connector.
Furthermore, the main control board comprises a main control chip, a power module, a CAN transceiving module, a power driving module, a PWM output module, an analog quantity acquisition module, a switching quantity acquisition module and a storage module, wherein the power module, the CAN transceiving module, the power driving module, the PWM output module, the analog quantity acquisition module, the switching quantity acquisition module and the storage module are correspondingly connected to the main control chip, the PWM output module is connected with the gate driving module, and a low-voltage input port of the low-voltage connector is connected with the analog quantity acquisition module.
Furthermore, a water cooling plate is arranged below the IGBT module, and heat-conducting silicone grease is smeared between the water cooling plate and the IGBT module.
The utility model discloses a control method does:
1) an accelerator signal or a brake signal of the pure electric vehicle enters a main control board through a low-voltage input port of a low-voltage connector, the main control board obtains a state to be executed and a driving torque of a driving motor in the pure electric vehicle after analysis and calculation, and converts the state to a motor vector control parameter to control a gate driving module to work;
2) the gate driving module drives the IGBT module to work through the PWM signal, when the IGBT module is required to be switched on, a driving circuit in the gate driving module outputs positive-pressure gate pulse current, and when the IGBT module is required to be switched off, the driving circuit in the gate driving module outputs negative-pressure gate pulse current;
3) the high voltage of a vehicle battery pack in the pure electric vehicle is transmitted to the capacitor bank through a high voltage input port of the high voltage connector, and enters the IGBT module after being stabilized by the capacitor bank;
4) the current sensor collects the three-phase alternating current and feeds the three-phase alternating current back to the main control board, the main control board calculates the three-phase current, whether three-phase output is balanced or not is judged, current closed-loop control is formed, control precision is improved, and meanwhile output is protected from overcurrent according to current limitation.
Furthermore, the main control board comprises a main control chip, a power supply module, a CAN transceiving module, a power driving module, a PWM output module, an analog quantity acquisition module, a switching quantity acquisition module and a storage module, wherein the power supply module, the CAN transceiving module, the power driving module, the PWM output module, the analog quantity acquisition module, the switching quantity acquisition module and the storage module are correspondingly connected to the main control chip, the PWM output module is connected with the gate driving module, and a low-voltage input port of the low-voltage connector is connected with the analog quantity acquisition module; the power module converts 24V power supply of a vehicle battery pack in the pure electric vehicle into 5V power supply and is used for supplying power to the main control chip, the analog quantity acquisition module and the switching value acquisition module acquire and process working signals of the pure electric vehicle and then send the working signals to the main control chip, the main control chip obtains operation intentions of a driver through analysis and calculation and converts the operation intentions into control commands, the power driving module executes the control commands of the main control chip, and the PWM output module controls the IGTB module to work through the gate pole driving module.
Further, the working signal of the electric vehicle collected by the analog quantity collecting module comprises: the temperature signal of the driving motor controller, the temperature signal of the driving motor, the throttle signal, the brake signal and the rotation signal; the working signal of electric automobile that switching value collection module gathered includes: gear signal, defrosting signal of air conditioner and key switch ON gear signal.
Furthermore, the driving circuit in the gate driving module comprises a gate turn-on circuit and a gate turn-off circuit, which respectively control the on and off of the IGBT module.
The utility model discloses following beneficial effect has:
1) the utility model realizes the integrated solution of the whole vehicle control and the drive control, solves the defects that the network is easy to be interfered and the response is slow when the common whole vehicle control and the drive control are separated, and simultaneously saves peripheral circuits, reduces the hardware cost and saves the whole vehicle cost due to the sharing of partial hardware circuits;
2) the utility model discloses a concentrate on same circuit board with VCU and MCU function, the total processor directly acquires whole car signal, behind the inside calculation moment of torsion, converts to the moment of torsion control module, and the precision and the real-time of control improve.
Description of the drawings:
fig. 1 is a structural schematic diagram of the present invention.
Fig. 2 is a structural diagram of the main control board of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the utility model relates to an integrated pure electric vehicle drive controller, including main control board, gate drive module (GDU), electric capacity group, IGBT module, current sensor, low-voltage connector and high-voltage connector, the low-voltage input port of low-voltage connector links to each other with the main control board, and the main control board links to each other with gate drive module, and gate drive module links to each other with the IGBT module; the high-voltage input port of the high-voltage connector is connected with the capacitor bank, the capacitor bank is connected with the IGBT module, the IGBT module is connected with the current sensor, and the current sensor is connected with the high-voltage output port of the high-voltage connector.
The utility model provides a main control board includes main control chip, power module, CAN transceiver module, power drive module, PWM output module, analog quantity collection module, switching value collection module and storage module correspond and connect on main control chip, PWM output module links to each other with the extreme drive module of AND gate, the low pressure input port of low pressure connector links to each other with analog quantity collection module.
The power module converts the 24V power supply of a vehicle battery pack in the pure electric vehicle into 5V power supply and is used for supplying power to the main control chip and other sensors, the analog quantity acquisition module and the switching value acquisition module acquire and process working signals of the pure electric vehicle and then send the working signals to the main control chip, the main control chip obtains the operation intention of a driver through analysis and calculation and converts the operation intention into a control command, the power driving module executes the control command of the main control chip, and the PWM output module controls the IGTB module to work through the gate pole driving module.
The utility model discloses electric automobile's that well analog quantity collection module gathered working signal includes: temperature signals of a driving motor controller, temperature signals of a driving motor, throttle signals, brake signals and rotation signals (rotating speed and position sensor signals);
the working signal of electric automobile that switching value collection module gathered includes: gear signal, defrosting signal of air conditioner and key switch ON gear signal.
In order to better dissipate heat, a water cooling plate is arranged below the IGBT module, and heat-conducting silicone grease is smeared between the water cooling plate and the IGBT module.
The utility model discloses a control method, including following step:
1) the accelerator signal or the brake signal of the pure electric vehicle enters the main control board through the low-voltage input port of the low-voltage connector, the main control board obtains the state and the driving torque which are required to be executed by a driving motor in the pure electric vehicle after analysis and calculation, and converts the state and the driving torque into motor vector control parameters to control the work of the gate drive module, wherein the gate drive module is a GDU (ground power unit) and is a circuit board for driving an IGBT (insulated gate bipolar translator) module to work in a high-frequency on-off state;
2) the gate driving module drives the IGBT module to work through the PWM signal; the driving circuit in the gate driving module comprises a gate turn-on circuit and a gate turn-off circuit which respectively and correspondingly control the on and off of the IGBT, and 6 IGBTs form a three-phase full-bridge inverter circuit to drive a driving motor (a permanent magnet synchronous motor) in the pure electric vehicle to work;
3) the high voltage of a vehicle battery pack in the pure electric vehicle is transmitted to the capacitor bank through a high voltage input port of the high voltage connector, and enters the IGBT module after being stabilized by the capacitor bank;
4) the current sensor collects the three-phase alternating current and feeds the three-phase alternating current back to the main control board, the main control board calculates the three-phase current, whether three-phase output is balanced or not is judged, current closed-loop control is formed, control precision is improved, and meanwhile output is protected from overcurrent according to current limitation.
The gate drive module (GDU) and the IGBT module related to the utility model are the existing structure, and the working principle and the working circuit between the GDU and the IGBT module are not described in detail.
The utility model discloses the controller has integrated vehicle control unit and machine controller's function, makes vehicle drive control calculate concentrate in the main control board like this, and the response is fast, and efficiency has improved, owing to need not pass through CAN bus transmission information between vehicle control unit and machine controller, does not have external disturbance's condition promptly, and the security also obtains the guarantee. Only one main control board is used, and circuit boards such as a main control chip and peripheral circuits of the whole vehicle controller are completely omitted, so that the cost of the whole vehicle is greatly reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (3)
1. The utility model provides an integrated form pure electric vehicles drive controller which characterized in that: the low-voltage power supply comprises a main control board, a gate pole driving module, a capacitor bank, an IGBT module, a current sensor, a low-voltage connector and a high-voltage connector, wherein a low-voltage input port of the low-voltage connector is connected with the main control board, the main control board is connected with the gate pole driving module, and the gate pole driving module is connected with the IGBT module; the high-voltage input port of the high-voltage connector is connected with the capacitor bank, the capacitor bank is connected with the IGBT module, the IGBT module is connected with the current sensor, and the current sensor is connected with the high-voltage output port of the high-voltage connector.
2. The integrated electric-only vehicle drive controller of claim 1, wherein: the main control board comprises a main control chip, a power module, a CAN (controller area network) transceiver module, a power driving module, a PWM (pulse width modulation) output module, an analog quantity acquisition module, a switching quantity acquisition module and a storage module, wherein the power module, the CAN transceiver module, the power driving module, the PWM output module, the analog quantity acquisition module, the switching quantity acquisition module and the storage module are correspondingly connected to the main control chip, the PWM output module is connected with the gate driving module, and a low-voltage input port of the low-voltage connector is connected with the analog quantity acquisition module.
3. The integrated electric-only vehicle drive controller of claim 1, wherein: and a water cooling plate is arranged below the IGBT module, and heat-conducting silicone grease is smeared between the water cooling plate and the IGBT module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920819742.5U CN210191174U (en) | 2019-06-03 | 2019-06-03 | Integrated pure electric vehicle drive controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920819742.5U CN210191174U (en) | 2019-06-03 | 2019-06-03 | Integrated pure electric vehicle drive controller |
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| CN210191174U true CN210191174U (en) | 2020-03-27 |
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| CN201920819742.5U Active CN210191174U (en) | 2019-06-03 | 2019-06-03 | Integrated pure electric vehicle drive controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103726A (en) * | 2019-06-03 | 2019-08-09 | 南京融浦益达动力科技有限公司 | A kind of integrated form pure electric automobile drive control device and control method |
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2019
- 2019-06-03 CN CN201920819742.5U patent/CN210191174U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103726A (en) * | 2019-06-03 | 2019-08-09 | 南京融浦益达动力科技有限公司 | A kind of integrated form pure electric automobile drive control device and control method |
| CN110103726B (en) * | 2019-06-03 | 2024-01-19 | 南京融浦益达动力科技有限公司 | Integrated pure electric vehicle driving controller and control method |
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