CN113733893B

CN113733893B - Dual electric control controller, hybrid power system and electric vehicle

Info

Publication number: CN113733893B
Application number: CN202010462901.8A
Authority: CN
Inventors: 喻凤传; 张星春; 陈万国
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2024-06-18
Anticipated expiration: 2040-05-27
Also published as: CN113733893A

Abstract

The present disclosure relates to a dual electronic control controller, a hybrid power system and an electric vehicle, the dual electronic control controller includes a first control module, a second control module and a box (1) accommodating the first control module and the second control module, a flow channel (4) extending adjacent to the first control module and the second control module is provided in the box (1), an inlet pipe (44) and an outlet pipe (45) respectively communicated with the flow channel (4) are connected to the box (1), so that cooling liquid from the inlet pipe (44) flows out from the outlet pipe (45) via the flow channel (4). The controllers of the driving motor and the generator are combined into the double electric control box body, and the cooling liquid flows into the flow channel from the inlet pipe to cool the first control module and the second control module and flows out from the outlet pipe, so that the flow channel sharing of the first control module and the second control module is realized, the flow channel connection of each module is omitted, the space is saved, and the weight of the box body can be reduced.

Description

Dual electric control controller, hybrid power system and electric vehicle

Technical Field

The disclosure relates to the technical field of controllers, in particular to a dual-electric control controller, a hybrid power system and an electric vehicle.

Background

With the development of the current social technology, new energy automobiles are becoming more popular, the controller functions are becoming more integrated, and the volume requirements are becoming smaller. In which a hybrid vehicle typically includes two electric machines, one acting as a main drive motor and the other as a generator, both of which require a controller to control. In the related art, the driving motor controller and the generator controller are independent boxes, and a waterway, a direct current bus, a bus capacitor, a control signal wire harness and the like for cooling in each box are relatively independent, so that the whole electric control assembly is large in size and occupies space.

Disclosure of Invention

The first object of the present disclosure is to provide a dual electronic control controller, which can solve the problems that the existing vehicle controller has relatively single function, low integration level, independent housings of the generator and the driving motor, and the flow channels of the respective housings are all independently arranged and need water pipes and other connecting waterways, so that the occupied space is large and the cost is high.

A second object of the present disclosure is to provide a hybrid power system to solve the problems of relatively single function, low integration, large occupied space, and high cost of the existing vehicle controller.

The third object of the present disclosure is to provide an electric vehicle, so as to solve the problems of relatively single function, low integration level, large occupied space and high cost of the existing vehicle controller.

In order to achieve the above object, the present disclosure provides a dual electronic control controller, including a first control module, a second control module, and a case accommodating the first control module and the second control module, in which a flow passage extending adjacent to the first control module and the second control module is provided, and an inlet pipe and an outlet pipe respectively communicating with the flow passage are connected to the case, so that a coolant from the inlet pipe flows out from the outlet pipe via the flow passage.

Optionally, the first control module includes a first IGBT having a first heat dissipation pin group, the second control module includes a second IGBT having a second heat dissipation pin group, and the first heat dissipation pin group and the second heat dissipation pin group are respectively located in the flow channel.

Optionally, the first control module further includes a first driving PCB assembly for driving the first IGBT, the second control module further includes a second driving PCB assembly for driving the second IGBT, and a controller PCB assembly electrically connected to the first driving PCB assembly and the second driving PCB assembly, respectively, is disposed in the case.

Optionally, a baffle part for separating the flow passage into a first flow passage and a second flow passage is formed in the case, the first heat dissipation needle group is positioned in the first flow passage, the second heat dissipation needle group is positioned in the second flow passage, and

The box body is also provided with a cover plate which is spaced from the baffle part, and a connecting runner which is communicated with the first runner and the second runner is formed between the baffle part and the cover plate.

Optionally, a first seal between the first IGBT and the tank and a second seal between the second IGBT and the tank are also included,

Wherein the first seal is sealed at least between the first heat dissipation needle group and the barrier, and the second seal is sealed at least between the second heat dissipation needle group and the barrier.

Optionally, the box body comprises an upper box body and a lower box body which are detachably connected.

Optionally, the box is equipped with signal connector for the direct current generating line connector that is connected with the battery package, be used for the distribution to get the distribution of electric power get electric connector and be used for connecting the three-phase line lid of three-phase line, wherein, signal connector sets up on the last box, direct current generating line connector the distribution is got electric connector and three-phase line lid all sets up on the lower box.

Optionally, the first control module and the second control module are both located above the flow channel, and a capacitor cavity and a boost inductor cavity are arranged below the flow channel, so that cooling liquid in the flow channel can dissipate heat of the capacitor assembly and the boost inductor assembly.

According to a second aspect of the present disclosure, there is also provided a hybrid system comprising a drive motor, a generator and a controller for controlling the drive motor and the generator, the controller being a dual electronic control controller as described above, one of the first control module and the second control module being for controlling the drive motor and the other being for controlling the generator.

According to a third aspect of the present disclosure, there is also provided an electric vehicle comprising a hybrid powertrain as described above.

Through above-mentioned technical scheme, the control module integration of this disclosure through driving motor and generator becomes a two electric cabinet body through a box, through setting up integration cooling runner, has realized the runner sharing of two control module, has saved the runner connection between each module to the spare part in the box can be shared to two control module, thereby saves space and part quantity, makes its simple to operate, and the integrated level is high, is convenient for realize the variety of vehicle controller function. Meanwhile, the weight of the box body is reduced, so that the box body is lighter.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

Fig. 1 is a schematic diagram of a dual electronic control controller according to an exemplary embodiment of the present disclosure;

FIG. 2 is a flow path structure and flow schematic provided by an exemplary embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a capacitor cavity and a boost inductor cavity in a lower case according to an exemplary embodiment of the present disclosure;

FIG. 4 is a cross-sectional view of a dual electronically controlled controller provided in an exemplary embodiment of the present disclosure;

fig. 5 is a partial view of the first control module position of fig. 4.

Description of the reference numerals

1. Case 101 upper case

102. Lower box 11 baffle

12. Cover 13 signal connector

14. DC bus connector 15 distribution electricity-taking connector

16. Three-phase line cover 2 first IGBT

21. First heat dissipation pin set 22 first drive PCB assembly

3. Second IGBT 31 second heat radiation needle group

32. Second drive PCB assembly 4 flow channel

41. First flow channel 42 second flow channel

43. Inlet pipe of connecting runner 44

45. First seal for outlet pipe 51

52. Second seal 6 controller PCB assembly

Capacitance cavity of 7 pin needle connecting assembly 8

801. Capacitor assembly 9 boost inductor cavity

901. Boost inductor assembly 10 isolation rib

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

In the present disclosure, unless otherwise indicated, the use of directional terms such as "upper and lower" generally refer to those defined in the case of normal use of the dual electronic control unit provided in the present disclosure as corresponding to the direction of the vehicle. "inner and outer" means both the inner and outer of the corresponding component profile. Furthermore, the terms "first," "second," and the like, as used in this disclosure, are used for distinguishing one element from another and not necessarily for describing a sequential or chronological order. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated.

Referring to fig. 1 to 5, the present disclosure provides a dual electronic control controller including a first control module, a second control module, and a case 1 accommodating the first control module and the second control module. One of the first control module and the second control module is a controller for controlling the driving motor, the other is a controller for controlling the generator, the controller shells of the driving motor and the generator are integrated into a box body 1, and the two control modules can share parts in the box body, so that space and the number of parts are saved. Meanwhile, the weight of the box body is reduced, so that the box body is lighter.

Specifically, be provided with the runner 4 that extends adjacent first control module and second control module in the box 1, be connected with on the box 1 respectively with runner 4 intercommunication's entry pipe 44 and outlet pipe 45 to make the coolant liquid from entry pipe 44 flow out from outlet pipe 45 via runner 4, cool off the heat dissipation to first control module and second control module, through setting up integrated cooling runner, realized the runner 4 sharing of the two, saved the runner connection between each module, simple to operate saves space, the integrated level is high, is convenient for realize the variety of vehicle controller function.

Referring to fig. 4, according to some embodiments, a first control module may include a first IGBT 2 (Insulated Gate Bipolar Transistor ) having a first heat dissipation pin group 21, and a second control module may include a second IGBT 3 having a second heat dissipation pin group 31. The first heat dissipation needle group 21 and the second heat dissipation needle group 31 are respectively positioned in the flow channel 4, so that the cooling liquid in the flow channel 4 directly dissipates heat of the first heat dissipation needle group 21 and the second heat dissipation needle group 31 in a contact manner, and the purpose of cooling the first IGBT 2 and the second IGBT 3 is achieved.

In the embodiment of the disclosure, the first control module further includes a first driving PCB assembly 22 (Printed Circuit Board ) for driving the first IGBT 2, the second control module further includes a second driving PCB assembly 32 for driving the second IGBT 3, a controller PCB assembly 6 is disposed in the case 1, and the first driving PCB assembly 22 and the second driving PCB assembly 32 are electrically connected to the controller PCB assembly 6 respectively, specifically may be electrically connected through the pin needle connection assembly 7, so that the controller PCB assembly 6 is shared.

The controller PCB assembly 6 can be connected with a signal connector 13, a dc bus connector 14 and a power distribution power taking connector 15 described below, so that the first control module and the second control module can share these components, and the number of parts in the related art can be reduced by one time.

Referring to fig. 4, a blocking wall, through which the pin needle connection assembly 7 can pass to achieve connection of the former with the latter, can be provided in the case 1 to separate the controller PCB assembly 6 from the two drive PCB assemblies. In this way, the controller PCB assembly 6 may be located in separate cavities from the two drive PCB assemblies to improve electromagnetic compatibility (Electro Magnetic Compatibility, EMC).

The specific arrangement position and form of the flow channel 4 are not particularly limited in the present disclosure, and some examples will be described below only with reference to the accompanying drawings.

Referring to fig. 2 and 4, a barrier 11 dividing the flow passage 4 into a first flow passage 41 and a second flow passage 42 may be formed in the case 1, the first heat dissipation pin group 21 is located in the first flow passage 41, the second heat dissipation pin group 31 is located in the second flow passage 42, and the flow passage 4 is divided into two parts by the barrier 11, so that leakage of the cooling liquid from between the first heat dissipation pin group 21 and the second heat dissipation pin group 31 in the flow passage 4 can be prevented.

The case 1 is further provided with a cover plate 12 spaced from the barrier 11, and a connecting flow passage 43 is formed between the barrier 11 and the cover plate 12 to communicate the first flow passage 41 and the second flow passage 42. The cover plate 12 may be integrally formed in the case 1, or may be fixed to the case 1 by welding, for example. For example, in the example shown in fig. 4, the first flow path 41 and the second flow path 42 extend straight, the bottom walls of both are flush, the cover plate 12 is located below the barrier 11, and the coolant flows downward and then upward when passing through the connecting flow path 43 so that the first flow path 41 and the second flow path 42 communicate. Thus, the first runner 41 and the second runner 42 are connected into an integrated runner through the connecting runner 43, so that the leakage of cooling liquid is prevented, the first IGBT 2 and the second IGBT 3 share one runner 4, the situation that water pipes are used for connecting independent runners is avoided, the occupied space is occupied, and the material consumption is realized.

Further, referring to fig. 4, the dual electronic control controller further includes a first seal 51 sealed between the first IGBT 2 and the case 1, and a second seal 52 sealed between the second IGBT 3 and the case 1, wherein the first seal 51 is sealed between at least the first heat dissipation pin group 21 and the barrier 11, and the second seal 52 is sealed between the second heat dissipation pin group 31 and the barrier 11 to prevent leakage of the coolant between the first IGBT 2 and the second IGBT 3. For example, in the embodiment shown in fig. 4, the first sealing member 51 and the second sealing member 52 may be sealing rings surrounding the first heat dissipation pin group 21 and the second heat dissipation pin group 22, respectively, and the sealing rings are disposed at the contact positions of the first heat dissipation pin group 21 and the case 1. It should be noted that, the setting positions and the number of the sealing elements are not limited to the above-mentioned situations, and the sealing of the flow channel 4 can be realized, and the leakage of the cooling liquid can be prevented, which all belong to the protection scope of the present disclosure.

For easy installation and maintenance, the case 1 may include an upper case 101 and a lower case 102 detachably connected, so that easy disassembly and assembly during maintenance is facilitated. Referring to fig. 1, the upper case 101 and the lower case 102 may be integrally installed by a plurality of screw fasteners.

Further, the first control module, the second control module, and the flow channel 4 may be formed at the junction of the upper case 101 and the lower case 102, respectively, so as to further improve the convenience of disassembly and assembly during maintenance. In addition, the upper case 101 and the lower case 102 may be partitioned into separate cavities by the first control module, the second control module, and the flow passage 4, and electronic components in the upper case 101 and the lower case 102 may not interfere with each other to improve EMC.

To facilitate the installation of the flow channel 4, the first control module and the second control module are arranged laterally spaced apart, the flow channel 4 being configured as a straight channel, where lateral spacing means that the first control module and the second control module are spaced apart in the box 1 substantially in the horizontal direction. It should be noted that, the arrangement positions of the first control module and the second control module and the arrangement form of the flow channel 4 are not limited to the above-mentioned situations, and the cooling and heat dissipation of the flow channel 4 to the first control module and the second control module can be realized, so that the first control module and the second control module share one flow channel 4, which saves space and cost, and all belong to the protection scope of the disclosure.

Referring to fig. 4, according to some embodiments, the first control module and the second control module are both located above the runner 4, and the capacitor cavity 8 and the boost inductor cavity 9 are disposed below the runner 4, so that when cooling liquid in the runner 4 dissipates heat for the first control module and the second control module, the cooling liquid also dissipates heat for the capacitor assembly 801 and the boost inductor assembly 901 respectively, thereby realizing "one-core-four-purpose", where the capacitor assembly 801 and the boost inductor assembly 901 can be shared by the first IGBT 2 and the second IGBT 3, so as to save part cost. In this way, the capacitor assembly 801 and the boost inductor assembly 901 are arranged in a split mode to form independent cavities, and therefore EMC improvement is facilitated. In addition, the first driving PCB assembly 22, the second driving PCB assembly 32 and the controller PCB assembly 6 are all disposed above the flow channel 4, i.e. at positions different from the capacitor cavity 8 and the boost inductor cavity 9, thereby further improving EMC.

Referring to fig. 3, in the present embodiment, a plurality of isolation ribs 10 are disposed in a case 1, and the plurality of isolation ribs 10 enclose a boost inductor cavity 9, so as to prevent interference generated when the boost inductor assembly 901 works, and influence other electronic devices. The isolating rib 10 is made of aluminum alloy, which has high heat conductivity and good heat dissipation function, and is an ideal medium for heat energy conversion, and the isolating rib is high in heat dissipation efficiency, light and convenient to process.

Referring to fig. 1, a box 1 is provided with a signal connector 13, the signal connector 13 passes through the box 1 and is connected with a whole vehicle, the box 1 is also provided with a direct current bus connector 14 connected with a battery pack, a power distribution and electricity taking connector 15 for power distribution and electricity taking and a three-phase wire cover 16 for connecting three-phase wires, two-phase wires of the battery pack are conveyed to a control module for processing, and then conveyed to the three-phase wires to be converted into three-phase wires for being transmitted to a motor. By the arrangement, the direct current bus, the bus capacitor, the signal connector 13 and the wire harness thereof are shared, and cost is saved.

Referring to fig. 1, in the case where the above-mentioned case 1 includes the detachable upper case 101 and lower case 102, the signal connector 13 may be disposed in the upper case 101, and the dc bus connector 14, the power distribution and taking connector 15, and the three-phase line cover 16 may be disposed in the lower case 102, and the flow channels 4 separate the connectors, so that the high-voltage portion and the low-voltage portion inside the controller respectively dissipate heat, and the heat dissipation effect is better.

In another aspect of the disclosure, a hybrid power system and an electric vehicle having the hybrid power system are provided, the hybrid power system includes a driving motor, a generator, and a controller for controlling the driving motor and the generator, the controller is the dual electronic control controller, one of the first control module and the second control module is used for controlling the driving motor, and the other is used for controlling the generator. The advantages of the hybrid power system and the electric vehicle are the same as those of the dual electronic control controllers in the prior art, and are not described herein.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the embodiments described above, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims

1. A dual electronic control controller, comprising a first control module, a second control module and a box (1) for accommodating the first control module and the second control module, wherein a flow passage (4) extending adjacent to the first control module and the second control module is arranged in the box (1), an inlet pipe (44) and an outlet pipe (45) which are respectively communicated with the flow passage (4) are connected to the box (1), so that cooling liquid from the inlet pipe (44) flows out of the outlet pipe (45) through the flow passage (4), the first control module comprises a first IGBT (2) with a first heat dissipation needle group (21), the second control module comprises a second IGBT (3) with a second heat dissipation needle group (31), the first heat dissipation needle group (21) and the second heat dissipation needle group (31) are respectively positioned in the flow passage (4), a first flow passage (4) and a second flow passage (41) are separated by a first heat dissipation needle group (41) and a second heat dissipation needle group (42) are respectively formed in the box (1)

The box body (1) is also provided with a cover plate (12) which is spaced from the baffle part (11), and a connecting flow passage (43) which is communicated with the first flow passage (41) and the second flow passage (42) is formed between the baffle part (11) and the cover plate (12).

2. The dual electronic control controller according to claim 1, wherein the first control module further comprises a first drive PCB assembly (22) for driving the first IGBT (2), the second control module further comprises a second drive PCB assembly (32) for driving the second IGBT (3), and a controller PCB assembly (6) electrically connected to the first drive PCB assembly (22) and the second drive PCB assembly (32), respectively, is provided in the case (1).

3. Double electrically controlled controller according to claim 1, further comprising a first seal (51) sealed between the first IGBT (2) and the tank (1) and a second seal (52) sealed between the second IGBT (3) and the tank (1),

Wherein the first sealing member (51) is sealed at least between the first heat dissipation pin group (21) and the barrier portion (11), and the second sealing member (52) is sealed at least between the second heat dissipation pin group (31) and the barrier portion (11).

4. The dual electronic control according to claim 1, wherein the housing (1) comprises an upper housing (101) and a lower housing (102) detachably connected.

5. The dual electronic control controller according to claim 4, wherein the box (1) is provided with a signal connector (13), a direct current bus connector (14) for being connected with a battery pack, a power distribution power taking connector (15) for power distribution power taking and a three-phase line cover (16) for connecting three-phase lines, wherein the signal connector (13) is arranged on the upper box (101), and the direct current bus connector (14), the power distribution power taking connector (15) and the three-phase line cover (16) are all arranged on the lower box (102).

6. The dual electronic control controller according to claim 1, wherein the first control module and the second control module are both located above the flow channel (4), and a capacitor cavity (8) and a boost inductor cavity (9) are arranged below the flow channel (4), so that cooling liquid in the flow channel (4) can dissipate heat of the capacitor assembly (801) and the boost inductor assembly (901).

7. A hybrid system comprising a drive motor, a generator and a controller for controlling the drive motor and the generator, characterized in that the controller is a dual electronic control controller according to any one of claims 1-6, one of the first control module and the second control module being for controlling the drive motor, the other being for controlling the generator.

8. An electric vehicle comprising the hybrid system of claim 7.