CN115397140A - Motor controller and vehicle - Google Patents

Abstract

The application discloses machine controller, it includes: an upper housing and a lower housing assembled together, the lower housing comprising an upper chamber and a lower chamber separated by a divider plate; the transmission control processor, the control circuit board, the driving circuit board, the boost inductor and the boost inductor water cooler are arranged between the partition plates of the upper shell and the lower shell, and are used for cooling the boost inductor, wherein the control circuit board and the driving circuit board are separated by a shielding plate to prevent mutual electromagnetic interference; and the main capacitor, the IGBT module water cooler for cooling the IGBT module, the boost capacitor and the current sensor are arranged in the lower cavity of the lower shell. The application also relates to a vehicle comprising the motor controller.

Description

Motor controller and vehicle

Technical Field

The application relates to the field of new energy vehicles, in particular to a motor controller and a vehicle comprising the same.

Background

As hybrid transmissions become more powerful, the structure becomes more complex, but the space available for the entire vehicle to reach the powertrain is limited, and in order to increase the compactness, some small and versatile components are more popular in complex hybrid transmission structures. The existing transmission motor controller in the market is a product with a complete structure, the appearance of the product structure is fixed, the required installation space is large, and the transmission is required to be structurally matched with the controller, so that the compactness of the whole structure and the arrangement of the whole vehicle are not facilitated.

Disclosure of Invention

In view of the above, embodiments of the present application provide a motor controller and a vehicle including the motor controller, so as to effectively address at least one of the above-mentioned needs or alleviate the existing disadvantages.

One aspect of the present application relates to a motor controller, comprising:

an upper housing and a lower housing assembled together, the lower housing including an upper chamber and a lower chamber separated by a partition plate;

the transmission control processor, the control circuit board, the driving circuit board, the boost inductor and the boost inductor water cooler are arranged between the partition plates of the upper shell and the lower shell, and are used for cooling the boost inductor, wherein the control circuit board and the driving circuit board are separated by a shielding plate to prevent mutual electromagnetic interference; and

the IGBT module comprises a main capacitor, an IGBT module water cooler, a boosting capacitor and a current sensor, wherein the main capacitor is arranged in the lower cavity of the lower shell, and the IGBT module water cooler is used for cooling the IGBT module.

Optionally, in the motor controller, the lower housing is provided with a mounting structure for mating with a transmission housing for mounting the lower housing to the transmission housing such that the transmission housing becomes a bottom case of the motor controller, the lower cavity of the lower housing being located between the partition plate and the transmission housing.

Optionally, in the motor controller, four bolt mounting holes are respectively formed in four corners of the lower housing, and are used for being matched with bolts to fix the lower housing and the transmission housing, and a radial sealing element is arranged between the lower housing and the transmission housing.

Optionally, in the motor controller, the IGBT module is connected to the driving circuit board through an IGBT pin, the driving circuit board is connected to the control circuit board through a board-to-board plug-in, and an output terminal positive electrode and an output terminal negative electrode of the main capacitor are connected to an input terminal positive electrode and an input terminal negative electrode of the IGBT module, respectively.

Optionally, in the motor controller, the IGBT module includes seven IGBTs, and the input end positive electrodes and the input end negative electrodes of the seven IGBTs are respectively welded to the output end positive electrodes and the output end negative electrodes of the main capacitor through positive connection copper bars and negative connection copper bars.

Optionally, the motor controller further includes a filter, an input positive electrode and an input negative electrode of the boost capacitor are respectively connected to an output positive electrode and an output negative electrode of the filter, an output positive electrode of the boost capacitor is connected to an input positive electrode of the main capacitor, an input positive electrode and an input negative electrode of the filter are connected to the high-voltage connector, and an output negative electrode of the filter is connected to an input negative electrode of the main capacitor.

Optionally, in the motor controller, the filter includes a filter housing, a connection copper bar, a ground copper bar, a magnetic ring, and a filter capacitor, where the connection copper bar is connected to the filter capacitor and passes through the magnetic ring, and the ground copper bar is connected to the filter capacitor and led out of the filter housing to achieve grounding.

Optionally, machine controller further includes the resistance board that discharges, the resistance board that discharges is fixed on the main capacitor, and with the temperature sensor of main capacitor is connected, the resistance board that discharges still through the internal signal pencil with control circuit board connects, the main capacitor include 3PIN stitch, be used for with the resistance board that discharges is connected, in order to collect the voltage information of main capacitor and pass through the internal signal pencil transmits for control circuit board for the whole car outage back of parking the remaining electric energy accessible of main capacitor the 3PIN stitch is transmitted the resistance board that discharges, generates heat the release through the resistance remaining electric energy.

Optionally, in the motor controller, the input pin of the current sensor is welded to the output terminal of the IGBT module, and the output pin of the current sensor is connected to the three-phase line of the driving motor, the three-phase line of the generator, and the boost inductor connecting copper bar.

Optionally, in the motor controller, the control circuit board is connected to the current sensor through an internal signal harness, the control circuit board is further connected to the discharge resistance board through an internal signal harness, and is connected to the boost inductance temperature sensor through a harness connector, and a low-voltage signal connector of the control circuit board passes through a preformed hole of the upper housing and is led out of the upper housing.

Optionally, the motor controller further includes a power input harness fixed to the upper housing and a high voltage connector fixed to the lower housing, the power input harness being connected to the high voltage connector.

Optionally, in the motor controller, the transmission control processor, the control circuit board, the boost inductor, and the boost inductor water cooler are located between the upper housing and the shield plate, and the driving circuit board is located between the shield plate and the partition plate of the lower housing.

Optionally, in the motor controller, the control circuit board and the drive circuit board are configured to be suitable for a two-motor hybrid transmission.

Optionally, in the motor controller, the lower housing is formed with a water passage for introducing cooling water into and out of the IGBT module water cooler and the boost inductance water cooler.

Another aspect of the present application relates to a vehicle that includes the above-described motor controller.

Drawings

Exemplary embodiments of the present application are illustrated in the accompanying drawings, wherein like elements are numbered alike in the accompanying figures and wherein:

FIG. 1 is a schematic perspective view of an exemplary motor controller according to an embodiment of the present application;

FIG. 2 is an exploded perspective view of the motor controller of FIG. 1;

FIG. 3 is a schematic longitudinal cross-sectional view taken generally longitudinally along the central plane of the motor controller of FIG. 1, showing the assembled position of the parts in the upper chamber of the lower housing;

FIG. 4 is a schematic diagram showing the relative positions of the circuit connections of the internal circuit boards of the motor controller of FIG. 1;

FIG. 5 is a schematic view of an IGBT module of the motor controller of FIG. 1 and its water cooler assembly;

FIG. 6 is a schematic view of the assembly of the components within the lower chamber of the lower housing of the motor controller of FIG. 1;

FIG. 7 is a schematic view of the soldering of the electronic components in the lower chamber part of FIG. 6; and

fig. 8 is a schematic diagram showing the assembly positions of the components of the booster circuit of the motor controller shown in fig. 1.

Description of reference numerals:

1. upper shell 2 hybrid transmission control processor

3. Control circuit board 31 board to plug-in male end

32. Low-voltage connector joint 4 shielding plate

5. Drive circuit board 51 inter-board plug-in female terminal

6. Hexagonal stud of lower shell 61 control circuit board

7. The main capacitor of the vent plug 8

81. Discharging resistance board 82 PIN stitch

83. Main capacitor negative electrode connecting copper bar of main capacitor temperature sensor 84

85. Copper bar 9 IGBT module is connected to main capacitor positive pole

91. Chip anode 92 chip cathode

93. Chip output terminal 94 IGBT module pin

10. Power input wiring harness of current sensor 11

12. Heat conduction pad 13 boost inductor

131. Boost inductor temperature sensor 14 heat conducting pad

15. Water inlet of boost inductance water cooler 151

152. Water outlet 16 internal signal wire harness of boost inductance water cooler

17. Water pipe connector 18 2PIN high-pressure connector sealing cover

19 2PIN high voltage connector 20 boost capacitor

21. Filter 22 IGBT module water cooler

221 Water outlet 222 of IGBT module water cooler and water inlet of IGBT module water cooler

223. And locking the bolt by the chip water cooler.

Detailed Description

Some embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Unless clearly defined otherwise herein, the meaning of scientific and technical terms used herein is that which is commonly understood by one of ordinary skill in the art.

The use of "including," "comprising," and "having" and similar referents herein is to be construed to mean that the specified elements are included in the range as well as equivalents thereof. The terms "or", "or" are not meant to be exclusive, but rather denote the presence of at least one of the referenced items and include the cases where a combination of the referenced items may be present. The term "and/or" includes any and all combinations of one or more of the referenced items. References herein to "some embodiments" or the like indicate that a particular element (e.g., feature, structure, and/or characteristic) described in connection with the present application is included in at least one embodiment described herein, and may or may not be present in other embodiments. In addition, it is to be understood that the described inventive elements may be combined in any suitable manner.

One aspect of the present application relates to a motor controller for a dual-motor hybrid transmission. Fig. 1-8 illustrate an exemplary motor controller 100. As shown in fig. 1-3, the motor controller 100 includes an upper housing 1 and a lower housing 6 that can be assembled together to form a complete housing, which can be a protective metal housing made of metal (e.g., aluminum). The joining surfaces of the upper case 1 and the lower case 6 may be sealing surfaces. In some embodiments, during assembly, when the assembly of other components with respect to the housing is substantially completed, an automatic glue gun may be used to form a sealing rubber ring on the sealing surface of the lower housing 6 by continuous linear glue application, after the glue application is completed, the upper and lower housings may be boxed and locked by bolts, and the sealing rubber may form a uniform sealing surface on the joining surface of the upper and lower housings by pressing, thereby substantially completing the assembly of the motor controller 100. Wherein the lower case 6 may include an upper chamber 61 and a lower chamber 62 partitioned by a partition plate 60 thereof, and parts which easily generate electromagnetic interference with each other and thus need to be separately installed may be installed in the upper chamber 61 and the lower chamber 62, respectively. For example, in the illustrated embodiment, the driving circuit board 5 may be mounted in the upper cavity 61 and the IGBT module 9 may be mounted in the lower cavity 62 such that the two are separated to prevent electromagnetic interference.

Between the upper case 1 and the lower case 6, that is, between the upper case 1 and the partition plate 60, a hybrid transmission control processor (abbreviated as HTCP) 2, a control circuit board 3, a drive circuit board 5, a boost inductor 13, and a boost inductor water cooler 15 for cooling the boost inductor 13 may be provided. Wherein the circuit arrangements in the control circuit board 3 and the drive circuit board 5 are such that they can be applied to a two-motor hybrid transmission. A shield plate 4 may be disposed between the control circuit board 3 and the driving circuit board 5 to separate the control circuit board 3 and the driving circuit board 5 from each other to prevent electromagnetic interference. The shield plate 4 may be fixed to the lower case 6 with pins and bolts.

The control processor 2 can be installed on the upper shell 1 through bolts, the low-voltage connector 201 on the control processor 2 can be provided with a sealing ring, and can penetrate through the preformed hole 101 on the upper shell 1 and be locked through the bolts, and the sealing ring is pressed to realize sealing after being locked. The low-voltage connector joint 32 of the control circuit board 3 is provided with a sealing ring, when the upper shell 1 and the lower shell 6 are combined, the joint 32 penetrates through the preformed hole 202 on the upper shell 1 and is locked by a bolt, and the sealing ring is compressed to realize sealing after locking.

A boost inductor 13 and a boost inductor water cooler 15 for cooling the boost inductor 13 are also arranged between the upper shell 1 and the lower shell 6. In the illustrated embodiment, the boost inductor 13 and the boost inductor water cooler 15 are also located between the upper case 1 and the shield plate 4, i.e., on the same side of the shield plate 4 as the control processor 2 and the control circuit board 3, but spaced apart from the drive circuit board 5. A heat conduction pad 12 is provided between the boost inductor 13 and the upper case 1, and a heat conduction pad 14 is provided between the boost inductor 13 and a heat radiation surface of the boost inductor water cooler 15. The heat conducting pad 12 can be placed on the top of the boost inductor 13 before the upper shell 1 and the lower shell 6 are combined, and after the combined box is locked, the heat conducting pad 12 can be pressed tightly, so that the boost inductor 13 can be cooled by the upper shell 1. The heat conducting pad 14 is attached to the heat radiating surface of the boost inductor water cooler 15, then is mounted on the boost inductor 13 through bolts, and is mounted on the lower shell 6 after being assembled. During installation, the water inlet 151 of the boosting inductance water cooler 15 is aligned with the water outlet 221 of the IGBT module water cooler 22 and installed, the boosting inductance water cooler and the IGBT module water cooler can be radially sealed through double O-shaped rings and locked through bolts, then the boosting inductance temperature sensor 131 is inserted into the control circuit board 3, the water outlet 152 of the boosting inductance water cooler 15 can penetrate through a reserved hole in the upper shell 1 when the upper shell 1 and the lower shell 6 are combined, and the boosting inductance water cooler and the IGBT module water cooler can be radially sealed through the double O-shaped rings.

The driving circuit board 5 can be fixed on the lower shell 6 by pins and bolts, at this time, pins 94 of the IGBT module 9 and the driving circuit board 5 are welded by wave soldering, after the welding is completed, the four hexagonal studs 61 of the control circuit board are mounted on the lower shell 6, and then the shielding plate 4 is mounted on the lower shell 6 and locked by bolts. As shown in fig. 4, the male end 31 of the board-to-board plug-in connector on the control circuit board 3 is aligned with and inserted into the female end 51 of the board-to-board plug-in connector on the driving circuit board 5 during assembly, and the alignment of the board-to-board plug-in connectors can be ensured by using a common positioning pin, and the control circuit board 3 is locked on the hexagonal bolt post 61 of the control circuit board by using a bolt.

As shown in fig. 1 and 5, the IGBT module 9 has seven chips, the chips are coated with heat-conducting silicone grease on both sides and then sequentially installed in the gap of the IGBT module water cooler 22, and the chips are adjustable in the water cooler. As shown in fig. 6, the assembled parts are mounted on the lower housing 6, the water inlet 222 of the IGBT module water cooler 22 is inserted into the water channel interface of the lower housing 6, the two are sealed by O-rings, the water outlet 221 passes through the preformed hole of the partition plate of the upper and lower cavities of the lower housing 6, the auxiliary tool can be mounted on the lower housing 6 at this time, the IGBT module pins 94 of the IGBT module 9 are adjusted to ensure that all the IGBT module pins are inserted into the auxiliary tool, the chip water cooler locking bolt 223 is tightened at this time, the IGBT module and the water cooler are pressed and fixed on the lower housing 6, and then the auxiliary tool is removed, the main function of the auxiliary tool is to ensure that all the pin positions of the IGBT module 9 are correct, and preparation is made for assembling the driving circuit board 5 at the back.

As shown in fig. 6, the boost capacitor 20, the filter 21 and the main capacitor 8 are sequentially mounted on the lower housing 6, and positioning pins are pre-cast on the shells of the three components for positioning with the lower housing 6 and fixing with bolts, and after the three components are sequentially mounted on the lower housing 6, the corresponding circuit terminals are aligned, and the aligned terminals are locked with bolts. The discharge resistance plate 81 is fixed to the main capacitor 8 by bolts, the 3PIN 82 of the main capacitor 8 and the discharge resistance plate 81 are welded by wave soldering, and the main capacitor temperature sensor 83 is inserted into the discharge resistance plate 81 and transmits the collected temperature signal to the control board 3 through the internal signal harness 16 (see fig. 4). In fig. 4, the internal signal harness 16 is inserted through a prepared hole in the partition plate 60 of the lower case 6, and one end of the harness 16 is connected to the control circuit board 3, and the other end is connected to the current sensor 10 and the discharge resistor plate 81, respectively.

As shown in fig. 7, the current sensor 10 is mounted on the lower case 6 by pins and bolts, the current sensor 10 has seven copper bar terminals, and the input ends of the copper bar terminals are respectively connected to the chip output terminals 93 of the seven chips of the IGBT module 9 and welded by laser welding. As shown in fig. 5 and 7, one end of the main capacitor positive electrode connecting copper bar 85 is welded to the output positive electrode of the main capacitor 8 by laser welding, the other end is divided into seven terminals, and is welded to the chip positive electrode 91 of the IGBT module 9 by laser welding, the main capacitor negative electrode connecting copper bar 84 is fixed to the main capacitor 8 by two screws, one end of the main capacitor negative electrode connecting copper bar is welded to the output negative electrode of the main capacitor 8 by laser welding, and the other end is divided into seven terminals, and is welded to the chip negative electrode 92 of the IGBT module 9 by laser welding.

As shown in fig. 8, the outer surface of the boost inductor connecting copper bar 26 is coated with plastic, and is cast with an integrated plastic positioning pin, and is positioned on the lower casing 6 by a pin, the copper bar 26 passes through a preformed hole on the partition plate 60 of the lower casing 6, one end of the copper bar is fixed on the current sensor 10 by a bolt, and the other end of the copper bar is welded with one terminal of the boost inductor 13 by laser welding after the boost inductor 13 is installed. The other terminal of the boost inductor 13 is connected to the terminal of the boost capacitor 20 by a bolt.

As shown in fig. 2, the water pipe joint 17 is hermetically connected with the lower housing 6 by using a pipe thread. The two vent plugs 7 can be fitted into corresponding mouthpiece positions on the lower housing 6 by direct pressing. The vent plug 7 may be provided with a sealing ring, and form a sealing connection with a corresponding interface on the lower housing 6, so as to help realize the balance of the internal and external air pressures of the motor controller 100, and prevent water and/or dust from entering the motor controller 100. The 2PIN high-voltage connector 19 is installed in a square installation hole in the side face of the lower shell 6, and the lower shell 6 is provided with a limiting feature and fixed by two bolts after being installed in place. The 2PIN high-voltage connector can be manufactured by an injection molding method and can be provided with a plastic shell and two copper cores, a through unthreaded hole is formed in the plastic shell, so that bolts can be conveniently installed and fixed, and threaded holes are formed in two ends of the two copper cores, so that the two copper cores can be conveniently connected with parts at two ends.

The lower case 6 may also be provided with a mounting structure for mating with a transmission case (not shown) for mounting the lower case 6 to the transmission case, so that the transmission case becomes a bottom case of the motor controller 100. In some embodiments, four bolt mounting holes may be respectively formed at four corners of the lower case 6 for cooperating with bolts to fix the lower case 6 and the transmission case. A radial sealing element may also be provided between the lower housing 6 and the transmission housing. In some embodiments, shock absorbing bolts may be employed to secure the lower housing 6 to the transmission housing, the use of which may achieve a shock absorbing effect. In some embodiments, a seal ring may be provided between the lower case 6 and the bottom case (transmission case), the lower case 6 may be fixed to the bottom case with a shock-absorbing bolt, the power input harness 11 may be bolted to the upper case 1, the power input harness 11 may be bolted to the 2PIN high-voltage connector 19 through a reserved mounting hole in the side of the lower case 6, the battery and the motor controller of the entire vehicle may be connected, and the 2PIN high-voltage connector seal cover 18 may be bolted to the lower case 6 to seal the reserved mounting hole.

As can be seen in fig. 2 and 3, the control processor 2, the control circuit board 3, the drive circuit board 5, the boost inductor 13, and the boost inductor water cooler 15 are disposed between the upper case 1 and the partition plate 60 of the lower case 6, while the main capacitor 8, the IGBT module 9, the IGBT module water cooler 22, the current sensor 10, and the boost capacitor 21 are all disposed within the lower cavity 62 of the lower case 6, that is, between the partition plate 60 of the lower case 6 and the bottom case (transmission case).

Another aspect of the present application relates to a vehicle including the motor controller described above. From the above disclosure, those skilled in the art can readily obtain a vehicle incorporating the motor controller of the present application.

When the whole vehicle needs to be driven by a motor, after the voltage provided by the power supply of the whole vehicle is increased by the voltage boosting and stabilizing circuit in the motor controller 100, the direct current is converted into alternating current by the IGBT module 9 to supply power for the driving motor in the transmission, so that the whole vehicle obtains higher power; when the whole vehicle engine cruises or brakes in a high-efficiency interval, redundant kinetic energy is converted into alternating current through the generator, the alternating current is converted into direct current through the IGBT module 9, and at the moment, the motor controller 100 determines that the electric energy of the generator charges a whole vehicle power supply or directly supplies the electric energy to the driving motor according to the performance requirement of the whole vehicle.

In the embodiment of the application, the controller of the driving motor and the generator is integrated into the motor controller 100 for the double-motor variable counter, and the motor controller is integrated on the transmission, the same components can be shared, the number of parts is reduced, the cost is reduced, the structure can also share the shell with the transmission, the two are connected into a whole, the components of the controller are arranged in the external complex space of the transmission shell structure ingeniously, the size and the quality of the controller are reduced, and the function that one motor controller controls the driving motor and the generator simultaneously is realized. This application still integrates the hybrid transmission control processor to the machine controller simultaneously, further reduces the whole volume of derailleur, has promoted the suitability of drive assembly system on whole car arrangement, and drive assembly system can match more platform car types promptly.

The embodiment of the application solves at least one of the problems of large volume, poor adaptability, complex structure, high cost and the like of the existing motor controller. Compared with the prior art, the motor controller 100 in the embodiment of the application has the advantages of simple structure, small size, light weight, wide current range and good adaptability, and can boost voltage, thereby realizing the purpose of high-voltage control and improving the power density of the motor controller. The battery of the whole vehicle can be reversely charged, the recycling of the braking energy is realized, and the oil consumption of the whole vehicle is reduced. In addition, the cooling structure is simplified through the internal cooling circulation paths connected in series, the leakage risk of the cooling system is reduced, the IGBT module with high heat dissipation requirements is preferentially cooled and intensively cooled, the cooling effect is good, the cooling requirements are met, and meanwhile the structure is simplified and the cost is reduced.

The foregoing detailed description is intended to be illustrative of the present application and is not intended to be limiting, since any modifications and variations of the present application, within the spirit and scope of the appended claims, will fall within the true spirit and scope of the present application.

Claims (15)

1. A motor controller, comprising:

an upper housing and a lower housing assembled together, the lower housing including an upper chamber and a lower chamber separated by a partition plate;

the transmission control processor, the control circuit board, the driving circuit board, the boost inductor and the boost inductor water cooler are arranged between the partition plates of the upper shell and the lower shell, and are used for cooling the boost inductor, wherein the control circuit board and the driving circuit board are separated by a shielding plate to prevent mutual electromagnetic interference; and

the IGBT module comprises a main capacitor, an IGBT module water cooler, a boosting capacitor and a current sensor, wherein the main capacitor is arranged in the lower cavity of the lower shell, and the IGBT module water cooler is used for cooling the IGBT module.

2. The motor controller of claim 1 wherein said lower housing is provided with mounting structure for mating with a transmission housing for mounting said lower housing to said transmission housing such that said transmission housing becomes a bottom housing for said motor controller, said lower cavity of said lower housing being located between said divider plate and said transmission housing.

3. The motor controller according to claim 2, wherein four bolt mounting holes are provided at four corners of the lower housing for engaging with bolts to fix the lower housing to the transmission housing, and a radial sealing member is provided between the lower housing and the transmission housing.

4. The motor controller according to claim 1, wherein the IGBT module is connected to the driving circuit board through an IGBT pin, the driving circuit board and the control circuit board are connected to a board-to-board package, and an output terminal positive electrode and an output terminal negative electrode of the main capacitor are connected to an input terminal positive electrode and an input terminal negative electrode of the IGBT module, respectively.

5. The motor controller of claim 4 wherein said IGBT modules comprise seven IGBTs, said input positive and said input negative of said seven IGBTs being welded to said main capacitor output positive and output negative respectively by positive and negative connecting copper bars.

6. The motor controller of claim 1 further comprising a filter, wherein the positive input terminal and the negative input terminal of the boost capacitor are connected to the positive output terminal and the negative output terminal of the filter, respectively, the positive output terminal of the boost capacitor is connected to the positive input terminal of the main capacitor, the positive input terminal and the negative input terminal of the filter are connected to a high voltage connector, and the negative output terminal of the filter is connected to the negative input terminal of the main capacitor.

7. The motor controller of claim 6 wherein said filter comprises a filter housing, copper connector bars, copper ground bars, a magnetic ring, and a filter capacitor, wherein said copper connector bars are connected to said filter capacitor and pass through said magnetic ring, and said copper ground bars are connected to said filter capacitor and lead out to said filter housing for grounding.

8. The motor controller according to claim 1, further comprising a discharge resistance plate, wherein the discharge resistance plate is fixed on the main capacitor and connected with a temperature sensor of the main capacitor, the discharge resistance plate is further connected with the control circuit board through an internal signal wire harness, the main capacitor comprises a 3PIN PIN for connecting with the discharge resistance plate to collect voltage information of the main capacitor and transmit the voltage information to the control circuit board through the internal signal wire harness, so that the residual electric energy of the main capacitor can be transmitted to the discharge resistance plate through the 3PIN PIN after the parking vehicle is powered off, and the residual electric energy is released through resistance heating.

9. The motor controller according to claim 1, wherein pins of input terminals of the current sensor are respectively welded with output terminals of the IGBT module, and pins of output terminals of the current sensor are respectively connected with a driving motor three-phase line, a generator three-phase line and a boost inductor connecting copper bar.

10. The motor controller according to claim 1, wherein the control circuit board and the current sensor are connected by an internal signal harness, the control circuit board is further connected with the discharge resistance board by an internal signal harness and is connected with the boost inductance temperature sensor by a harness connector, and a low-voltage signal connector of the control circuit board passes through a prepared hole of the upper housing and is led out of the upper housing.

11. The motor controller of claim 1 further comprising a power input harness secured to said upper housing and a high voltage connector secured to said lower housing, said power input harness being connected to said high voltage connector.

12. The machine controller of claim 1, wherein the transmission control processor, the control circuit board, the boost inductor, and the boost inductor water cooler are located between the upper housing and the shield plate, and the drive circuit board is located between the shield plate and the divider plate of the lower housing.

13. The motor controller of claim 1, wherein the control circuit board and the drive circuit board are configured to be suitable for a two-motor hybrid transmission.

14. The motor controller of claim 1 wherein said lower housing is formed with a water channel for directing cooling water into and out of said IGBT module water cooler and said boost inductor water cooler.

15. A vehicle characterized in that it comprises a motor controller according to any one of claims 1 to 14.

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