Integrated motor controller, driving system and vehicle

Abstract

The utility model provides an integrated motor controller, a driving system and a vehicle, and belongs to the technical field of automobiles, and the integrated motor controller comprises a control board, a driving board, a DCDC converter and a DCDC redundancy protection circuit. The third end of the DCDC converter is used for being connected with the output end of a high-voltage battery of the whole vehicle, and therefore the DCDC converter can charge a low-voltage battery of the whole vehicle when working. The second end of the DCDC converter is further connected with the first end of the DCDC redundancy protection circuit, the second end of the DCDC redundancy protection circuit is connected with the first end of the control panel, and therefore when low-voltage power supply is abnormal or power failure occurs, redundant power can be output through the DCDC converter to supply power to the control panel. Meanwhile, when the circuit between the DCDC converter and the control panel is short-circuited or overcurrent, the DCDC redundancy protection circuit can be used for disconnection protection, so that the reliability of power supply of the low-voltage power supply of the integrated motor controller can be improved, and the cost is low.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to an integrated motor controller, a drive system and a vehicle. Background Art

[0002] In the power system of electric vehicles, the motor controller plays an important role. The motor controller can convert the electric energy stored in the power battery into the electric energy required by the drive motor according to the gear, throttle, brake and other instructions to control the start-up, forward and backward speed, climbing strength and other driving conditions of the electric vehicle. However, in actual use, the motor controller needs to be continuously powered at a low voltage to maintain its normal working state. Once the low-voltage power supply is abnormal or the power is directly lost, the motor controller will have no power to continue working, which will directly cause the vehicle to drive abnormally and make the whole vehicle lose power.

[0003] Therefore, in view of the above situation, when the motor controller has a low-voltage power supply abnormality or power failure, how to maintain the normal working state of the drive motor controller so that the whole vehicle can operate normally is an urgent problem that needs to be solved.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] The main purpose of the embodiments of the present application is to provide an integrated motor controller, a drive system and a vehicle. By setting a DCDC converter and a DCDC redundant protection circuit, when the low-voltage power supply is abnormal or the power is off, the DCDC converter can output a redundant power supply to power the control board, thereby improving the reliability of the low-voltage power supply of the integrated motor controller and reducing the cost.

[0006] According to one aspect of an embodiment of the present application, there is provided an integrated motor controller for electrically connecting to a motor to control the motor, the integrated motor controller comprising a control board, a drive board, a DCDC converter and a DCDC redundant protection circuit;

[0007] The first end of the control board is used to connect to the output end of the low-voltage battery of the vehicle, and the second end of the control board is connected to the first end of the driving board;

[0008] The first end of the DCDC converter is used to connect the output end of the low-voltage battery of the whole vehicle, the second end of the DCDC converter is used to connect the input end of the low-voltage battery of the whole vehicle, the second end of the DCDC converter is also connected to the first end of the DCDC redundant protection circuit, the second end of the DCDC redundant protection circuit is connected to the first end of the control board, and the third end of the DCDC converter is used to connect the output end of the high-voltage battery of the whole vehicle.

[0009] In the embodiment of the present application, by setting the third end of the DCDC converter to be connected to the output end of the high-voltage battery of the whole vehicle, and the second end of the DCDC converter to be connected to the control board, it is possible to output redundant power to the control board through the DCDC converter when the low-voltage power supply is abnormal or the power is off. At the same time, by connecting the DCDC redundant protection circuit between the second end of the DCDC converter and the first end of the control board, the DCDC redundant protection circuit can be used for disconnection protection when a short circuit or overcurrent occurs in the line between the DCDC converter and the control board, thereby improving the reliability of the low-voltage power supply of the integrated motor controller. In addition, the DCDC converter is integrated into the integrated motor controller, so that the DCDC converter output is used as a redundant solution at a lower cost, without increasing the cost of the whole vehicle wiring harness, and the redundant power supply loop integrated in the integrated motor controller is shorter, and only a low-cost power harness needs to be added.

[0010] In one embodiment of the present application, the control board includes an input control circuit, a voltage stabilization circuit, and a post-stage control circuit;

[0011] The first end of the input control circuit serves as the first end of the control board, and is used to connect the output end of the low-voltage battery of the vehicle and the second end of the DCDC redundant protection circuit;

[0012] The second end of the input control circuit is connected to the first end of the voltage stabilizing circuit, the second end of the voltage stabilizing circuit is connected to the first end of the subsequent control circuit, and the second end of the subsequent control circuit is connected to the driving board.

[0013] In the embodiment of the present application, the control board includes an input control circuit, a voltage stabilizing circuit and a post-stage control circuit, wherein the input control circuit is used to perform power supply control on the control board. The voltage stabilizing circuit is connected to the input control circuit, and the output of the input control circuit can be transmitted to the post-stage control circuit after voltage stabilization, thereby providing stable power supply to the post-stage control circuit.

[0014] In one embodiment of the present application, the control board further includes a wake-up circuit, a first end of the wake-up circuit is connected to the second end of the DCDC redundant protection circuit, and the first end of the wake-up circuit is also used to connect to the output end of the low-voltage battery of the vehicle;

[0015] The second end of the wake-up circuit is used to connect to the output end of the vehicle start switch, and is used to receive the hardware wake-up signal output by the vehicle start switch;

[0016] The third end of the wake-up circuit is used to connect to the output end of the vehicle communication system, and is used to receive the network wake-up signal output by the vehicle communication system;

[0017] The fourth terminal of the wake-up circuit is connected to the third terminal of the input control circuit.

[0018] In an embodiment of the present application, a wake-up circuit is set in the control board, and the wake-up circuit is connected to the input control circuit, so that the input control circuit can determine whether to supply power based on the wake-up signal input by the wake-up circuit, and the control board can be powered off when power is not needed, thereby reducing power consumption.

[0019] In one embodiment of the present application, the post-stage control circuit includes a power supply protection circuit, a power supply control circuit and a main control circuit;

[0020] The first end of the power supply protection circuit is connected to the second end of the voltage stabilizing circuit, the second end of the power supply protection circuit is connected to the first end of the power supply control circuit, and the power supply protection circuit is also connected to the driving board;

[0021] The second end of the power control circuit is connected to the first end of the main control circuit, the power control circuit is also connected to the driving board, and the main control circuit is also connected to the driving board.

[0022] In the embodiment of the present application, the power supply protection circuit is connected to the voltage stabilization circuit, and can provide protection in time when abnormal input voltage or current is detected, thereby improving the stability of power supply. The power supply control circuit can process the electrical signal output by the power supply protection circuit and then control whether to supply power to the main control circuit, so as to ensure the effective control of the motor by the main control circuit.

[0023] In one embodiment of the present application, the post-stage control circuit also includes a resolver circuit, a first end of the resolver circuit is connected to a third end of the power supply protection circuit, and a second end of the resolver circuit is connected to a third end of the power supply control circuit.

[0024] In the embodiment of the present application, the output of the power supply protection circuit supplies power to the power circuit of the resolver circuit. At the same time, the power supply control circuit can also supply power to the resolver circuit, thereby ensuring the normal operation of the resolver circuit.

[0025] In one embodiment of the present application, the driving board includes a lower bridge driving power module, an upper bridge driving power module, a lower bridge driving circuit and an upper bridge driving circuit;

[0026] The first end of the lower bridge driving power module is connected to the fourth end of the power supply protection circuit, the second end of the lower bridge driving power module is connected to the second end of the main control circuit, and the third end of the lower bridge driving power module is connected to the first end of the lower bridge driving circuit;

[0027] The first end of the upper bridge driving power module is connected to the fourth end of the power supply protection circuit, the second end of the upper bridge driving power module is connected to the third end of the main control circuit, and the third end of the upper bridge driving power module is connected to the first end of the upper bridge driving circuit;

[0028] The second end of the lower bridge driving circuit is connected to the fourth end of the main control circuit, and the second end of the upper bridge driving circuit is connected to the fifth end of the main control circuit.

[0029] In the embodiment of the present application, the lower bridge driving power module and the upper bridge driving power module control whether to output the driving power through the signal output by the main control circuit, which can avoid unnecessary power consumption and reduce the risk of unexpected operation of the driving circuit.

[0030] In one embodiment of the present application, the integrated motor controller further includes a lower bridge power module and an upper bridge power module;

[0031] The first end of the lower bridge power module and the first end of the upper bridge power module are both used to connect to the output end of the high-voltage battery of the whole vehicle; the second end of the lower bridge power module is connected to the third end of the lower bridge drive circuit, and the second end of the upper bridge power module is connected to the third end of the upper bridge drive circuit; the third end of the lower bridge power module and the third end of the upper bridge power module are both connected to the motor.

[0032] In the embodiment of the present application, by setting a lower bridge power module and an upper bridge power module, after the lower bridge power module and the upper bridge power module receive the driving voltage output by the corresponding lower bridge drive circuit and the upper bridge drive circuit, and after the high voltage power supply output by the high voltage battery of the whole vehicle enters the lower bridge power module and the upper bridge power module, a three-phase UVW voltage can be output, thereby driving the motor to rotate.

[0033] In one embodiment of the present application, the fourth end of the lower bridge power module is connected to the fourth end of the lower bridge drive circuit, and is used to send a first short circuit protection signal to the lower bridge drive circuit when a short circuit occurs;

[0034] The fourth end of the upper bridge power module is connected to the fourth end of the upper bridge drive circuit, and is used to send a second short circuit protection signal to the upper bridge drive circuit when a short circuit occurs.

[0035] In the embodiment of the present application, when a short circuit occurs in the lower bridge power module, a first short circuit protection signal is sent to the lower bridge drive circuit, so that the lower bridge drive circuit stops outputting signals to the lower bridge power module, thereby shutting down the lower bridge power module, thereby avoiding burning. Similarly, when a short circuit occurs in the upper bridge power module, a second short circuit protection signal is sent to the upper bridge drive circuit, so that the upper bridge drive circuit stops outputting signals to the upper bridge power module, thereby shutting down the upper bridge power module, thereby avoiding burning.

[0036] In one embodiment of the present application, the post-stage control circuit further includes a low voltage difference linear voltage regulator circuit, and a first end of the low voltage difference linear voltage regulator circuit is connected to a fourth end of the power supply protection circuit;

[0037] The second terminal of the low voltage difference linear voltage regulator circuit is connected to the fifth terminal of the lower bridge driving circuit; correspondingly, the fifth terminal of the upper bridge driving circuit is connected to the third terminal of the power control circuit;

[0038] Alternatively, the second terminal of the low voltage difference linear voltage regulator circuit is connected to the fifth terminal of the upper bridge drive circuit; correspondingly, the fifth terminal of the lower bridge drive circuit is connected to the fourth terminal of the power control circuit;

[0039] Alternatively, the second end of the low voltage difference linear voltage regulator circuit is connected to the fifth end of the upper bridge drive circuit and the fifth end of the lower bridge drive circuit, and the fourth end of the power control circuit is connected to the fifth end of the upper bridge drive circuit and the fifth end of the lower bridge drive circuit.

[0040] In an embodiment of the present application, the primary power supply of the lower bridge drive circuit is supplied by a low voltage difference linear voltage regulator circuit after converting the voltage, and the primary power supply of the upper bridge drive circuit is supplied by the voltage output by the power control circuit, or the primary power supply of the upper bridge drive circuit is supplied by a low voltage difference linear voltage regulator circuit after converting the voltage, and the primary power supply of the lower bridge drive circuit is supplied by the voltage output by the power control circuit; or the primary power supply of the upper bridge drive circuit and the lower bridge drive circuit are supplied by a low voltage difference linear voltage regulator circuit after converting the voltage and the voltage output by the power control circuit; by adopting different power supply schemes to provide the primary power supply for the upper bridge drive circuit and the lower bridge drive circuit, the risk of common cause failure of the upper bridge drive circuit and the lower bridge drive circuit can be reduced.

[0041] In one embodiment of the present application, the lower bridge drive power supply module includes a lower bridge drive power supply control circuit and a first transformer, the first end of the lower bridge drive power supply control circuit is connected to the fourth end of the power supply protection circuit, the second end of the lower bridge drive power supply control circuit is connected to the first end of the first transformer, the second end of the first transformer is connected to the fourth end of the power supply protection circuit, and the third end of the first transformer is connected to the first end of the lower bridge drive circuit; correspondingly, the fifth end of the upper bridge drive circuit is connected to the fourth end of the power supply control circuit;

[0042] Alternatively, the upper bridge drive power supply module includes an upper bridge drive power supply control circuit and a second transformer, the first end of the upper bridge drive power supply control circuit is connected to the fourth end of the power supply protection circuit, the second end of the upper bridge drive power supply control circuit is connected to the first end of the second transformer, the second end of the second transformer is connected to the fourth end of the power supply protection circuit, and the third end of the second transformer is connected to the first end of the upper bridge drive circuit; correspondingly, the fifth end of the lower bridge drive circuit is connected to the fourth end of the power supply control circuit.

[0043] In the embodiment of the present application, the primary power supply of the lower bridge drive circuit can also be powered by the lower bridge drive power supply control circuit and the transformer, and correspondingly, the primary power supply of the upper bridge drive circuit is powered by the voltage output by the power supply control circuit. Similarly, due to the use of different power supplies, the risk of common cause failure of the upper bridge drive circuit and the lower bridge drive circuit can be reduced. Or the primary power supply of the upper bridge drive circuit can also be powered by the upper bridge drive power supply control circuit and the transformer, and correspondingly, the primary power supply of the lower bridge drive circuit is powered by the voltage output by the power supply control circuit. Similarly, due to the use of different power supplies, the risk of common cause failure of the upper bridge drive circuit and the lower bridge drive circuit can be reduced.

[0044] In one embodiment of the present application, the driving board includes an isolation sampling module, a first end of the isolation sampling module is used to connect to the output end of the high-voltage battery of the whole vehicle, and a second end of the isolation sampling module is connected to the sixth end of the main control circuit.

[0045] In the embodiment of the present application, the voltage output by the high-voltage battery of the whole vehicle after passing through the isolation sampling module enters the main control circuit, so that the main control circuit can execute the software protection mechanism according to these voltage signals.

[0046] In one embodiment of the present application, the integrated motor controller also includes a current sampling device, a first end of the current sampling device is connected to the third end of the lower bridge power module and the third end of the upper bridge power module, and a second end of the current sampling device is connected to the seventh end of the main control circuit.

[0047] In an embodiment of the present application, the three-phase current output by the lower bridge power module and the upper bridge power module can be collected by a current sampling device, and these current signals enter the main control circuit, so that the main control circuit can execute the software protection mechanism according to these current signals.

[0048] In one embodiment of the present application, the DCDC redundant protection circuit is integrated into the control board.

[0049] In the embodiment of the present application, the DCDC redundant protection circuit is integrated into the control board without adding a circuit board structure or a mounting structure, which can make the redundant solution more cost-effective.

[0050] In one embodiment of the present application, when the low-voltage battery of the vehicle is powered normally, the DCDC redundant protection circuit is disconnected so that the voltage output by the DCDC converter does not enter the control board for power supply;

[0051] When the low-voltage battery of the vehicle is abnormally powered, the DCDC redundant protection circuit is turned on, so that the voltage output by the DCDC converter enters the control board for redundant power supply;

[0052] Alternatively, when the voltage output by the low-voltage battery of the whole vehicle is greater than or equal to the voltage output by the DCDC redundant protection circuit, the voltage output by the low-voltage battery of the whole vehicle is used to power the control board;

[0053] When the voltage output by the vehicle low-voltage battery is lower than the voltage output by the DCDC redundant protection circuit, the voltage output by the DCDC redundant protection circuit supplies power to the control board.

[0054] To achieve the above-mentioned purpose, a second aspect of an embodiment of the present application proposes a drive system, including a motor, a reducer and the integrated motor controller described in any embodiment of the present application.

[0055] To achieve the above-mentioned purpose, a third aspect of an embodiment of the present application proposes a vehicle, comprising the drive system provided by the second aspect of the present application.

[0056] In the technical solution provided in the embodiment of the present application, the integrated motor controller includes a control board, a drive board, a DCDC converter and a DCDC redundant protection circuit. The control board is electrically connected to the drive board, and the first end of the control board is used to connect the output end of the low-voltage battery of the whole vehicle, so that the control board can be powered by the low-voltage battery of the whole vehicle. The first end of the DCDC converter is used to connect the output end of the low-voltage battery of the whole vehicle, the second end of the DCDC converter is used to connect the input end of the low-voltage battery of the whole vehicle, and the third end of the DCDC converter is used to connect the output end of the high-voltage battery of the whole vehicle, so that the DCDC converter can charge the low-voltage battery of the whole vehicle when it is working. The second end of the DCDC converter is also connected to the first end of the DCDC redundant protection circuit, and the second end of the DCDC redundant protection circuit is connected to the first end of the control board, so that when the low-voltage power supply is abnormal or power is lost, the redundant power supply can be output by the DCDC converter to power the control board. At the same time, when the line between the DCDC converter and the control board is short-circuited or overcurrent occurs, the DCDC redundant protection circuit can be disconnected for protection, thereby improving the reliability of the low-voltage power supply of the integrated motor controller. In addition, the DCDC converter is integrated into the integrated motor controller, making the DCDC converter output a lower-cost redundant solution without increasing the cost of the vehicle wiring harness. The redundant power supply loop integrated in the integrated motor controller is shorter, and only a lower-cost power harness needs to be added.

[0057] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0059] Figure 1 is a first structural schematic diagram of an integrated motor controller provided in Embodiment 1 of the present application;

[0060] Figure 2 is a second structural diagram of the integrated motor controller provided in the second embodiment of the present application;

[0061] Figure 3 is a third structural schematic diagram of the integrated motor controller provided in Embodiment 3 of the present application;

[0062] Figure 4 is a fourth structural diagram of an integrated motor controller provided in Embodiment 4 of the present application;

[0063] Figure 5 is a fifth structural diagram of an integrated motor controller provided in Embodiment 5 of the present application;

[0064] Figure 6 is a sixth structural diagram of an integrated motor controller provided in Embodiment 6 of the present application;

[0065] Figure 7 is a seventh structural diagram of an integrated motor controller provided in Embodiment 7 of the present application;

[0066] Figure 8 is an eighth structural diagram of an integrated motor controller provided in Embodiment 8 of the present application;

[0067] Fig. 9 is a ninth structural diagram of an integrated motor controller provided in Embodiment 9 of the present application;

[0068] Fig.10 This is the tenth structural diagram of the integrated motor controller provided in the tenth embodiment of the present application.

[0069] Description of reference numerals:

[0070] Integrated motor controller-1; control board-100; drive board-200; DCDC converter-300; DCDC redundant protection circuit-400; lower bridge power module-500; upper bridge power module-600; current sampling device-700; input control circuit-110; voltage stabilization circuit-120; post-stage control circuit-130; power supply protection circuit-131; power supply control circuit-132; main control circuit-133; resolver circuit-134; low voltage difference linear voltage stabilization circuit- 135; lower bridge drive power module-210; upper bridge drive power module-220; lower bridge drive circuit-230; upper bridge drive circuit-240; isolation sampling module-250; wake-up circuit-140; vehicle low-voltage battery-10; vehicle high-voltage battery-20; motor-30; vehicle start switch-40; vehicle communication system-50; lower bridge drive power control circuit-211; first transformer-212; upper bridge drive power control circuit-221; second transformer-222. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0072] It should be noted that, although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0073] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0074] In the power system of electric vehicles, the motor controller plays an important role. The motor controller can convert the electric energy stored in the power battery into the electric energy required by the drive motor according to the gear, throttle, brake and other instructions to control the start-up, forward and backward speed, climbing strength and other driving conditions of the electric vehicle. However, in actual use, the motor controller needs to be continuously powered at a low voltage to maintain its normal working state. Once the low-voltage power supply is abnormal or the power is directly lost, the motor controller will have no power to continue working, which will directly cause the vehicle to drive abnormally and make the whole vehicle lose power.

[0075] Therefore, in view of the above situation, when the motor controller has a low-voltage power supply abnormality or power failure, how to maintain the normal working state of the drive motor controller so that the whole vehicle can operate normally is an urgent problem that needs to be solved.

[0076] Based on this, an embodiment of the present application proposes an integrated motor controller. By setting a DCDC converter and a DCDC redundant protection circuit, when the low-voltage power supply is abnormal or power is off, the DCDC converter can output redundant power to power the control board, thereby improving the reliability of the low-voltage power supply of the integrated motor controller at a lower cost.

[0077] Embodiment 1

[0078] Reference Figure 1 , Figure 1 1 is a schematic diagram of the first structure of the integrated motor controller provided in the first embodiment of the present application. The integrated motor controller 1 is used to be electrically connected to the motor 30 to control the motor 30. Figure 1 As shown, the integrated motor controller 1 includes a control board 100, a drive board 200, a DCDC converter 300 and a DCDC redundant protection circuit 400. The first end of the control board 100 is used to connect to the output end of the vehicle low-voltage battery 10, and the second end of the control board 100 is connected to the first end of the drive board 200, so that the control board 100 can be powered by the vehicle low-voltage battery 10 to drive the motor to work.

[0079] The first end of the DCDC converter 300 is used to connect the output end of the vehicle low-voltage battery 10, the second end of the DCDC converter 300 is used to connect the input end of the vehicle low-voltage battery 10, and the third end of the DCDC converter 300 is used to connect the output end of the vehicle high-voltage battery 20, so that the DCDC converter 300 can output a voltage V when it is working. DCDC The second end of the DCDC converter 300 is also connected to the first end of the DCDC redundant protection circuit 400, and the second end of the DCDC redundant protection circuit 400 is connected to the first end of the control board 100. When the power supply line from the vehicle low-voltage battery 10 to the control board 100 is abnormal, the DCDC converter 300 can output a voltage V DCDC The control board 100 is powered redundantly. That is, when the power supply line from the vehicle low-voltage battery 10 to the control board 100 is normal, the vehicle low-voltage battery 10 provides low-voltage power to the control board 100; when the power supply line from the vehicle low-voltage battery 10 to the control board 100 is abnormal, the DCDC converter 300 outputs a voltage V DCDC The control board 100 is supplied with redundant power. At the same time, by connecting the DCDC redundant protection circuit 400 between the second end of the DCDC converter 300 and the first end of the control board 100, when a short circuit or overcurrent occurs in the line between the DCDC converter 300 and the control board 100, the DCDC redundant protection circuit 400 can be used for disconnection protection, thereby improving the reliability of the low-voltage power supply of the integrated motor controller 1. At the same time, the DCDC converter 300 is integrated into the integrated motor controller 1, so that the output of the DCDC converter 300 is used as a redundant solution at a lower cost, without increasing the cost of the vehicle wiring harness, and the redundant power supply loop integrated in the integrated motor controller 1 is shorter, and only a low-cost power harness needs to be added.

[0080] In one embodiment of the present application, the DCDC redundant protection circuit 400 may be integrated into the control board 100, thereby eliminating the need to add a circuit board structure or a mounting structure, which may lower the cost of the redundant solution.

[0081] In the embodiment of the present application, the DCDC redundant protection circuit 400 has the function of controlling the input power supply of the control board 100. When the low-voltage battery 10 of the vehicle is powered normally, the DCDC redundant protection circuit 400 remains disconnected, so that the voltage V output by the DCDC converter 300 is DCDC When the vehicle low-voltage battery 10 is powered abnormally, the DCDC redundant protection circuit 400 is turned on, so that the voltage V output by the DCDC converter 300 is DCDC Enter the control board 100 for redundant power supply.

[0082] In the embodiment of the present application, according to the cost requirements of the vehicle, the DCDC redundant protection circuit 400 may not have the control function of the input power supply of the control board 100. In this case, the voltage V output by the low-voltage battery 10 of the vehicle KL30 and the voltage V output by the DCDC converter 300 DCDC Mutual redundant power supply. When the voltage V KL30 Higher than the voltage V DCDC , by the voltage V KL30 The control board 100 is powered by the DCDC converter 300. DCDC The control board 100 is not powered. DCDC Higher than the voltage V KL30 , V output by the DCDC converter 300 DCDC Power the control board 100, and the V output by the low-voltage battery 10 of the vehicle KL30 The control board 100 is not powered.

[0083] Embodiment 2

[0084] Reference Figure 2 , Figure 2 1 is a second structural diagram of an integrated motor controller provided in the second embodiment of the present application. The integrated motor controller 1 is used to be electrically connected to the motor 30 to control the motor 30. Figure 2 As shown, the integrated motor controller 1 includes a control board 100, a drive board 200, a DCDC converter 300, a DCDC redundant protection circuit 400, a lower bridge power module 500 and an upper bridge power module 600. Among them, the control board 100 is electrically connected to the drive board 200. The first end of the control board 100 is used to connect to the output end of the low-voltage battery 10 of the whole vehicle, so that the control board 100 can be powered by the low-voltage battery 10 of the whole vehicle. The first end of the DCDC converter 300 is used to connect to the output end of the low-voltage battery 10 of the whole vehicle, the second end of the DCDC converter 300 is used to connect to the input end of the low-voltage battery 10 of the whole vehicle, and the third end of the DCDC converter 300 is used to connect to the output end of the high-voltage battery 20 of the whole vehicle, so that the voltage V can be output when the DCDC converter 300 is working. DCDC The second end of the DCDC converter 300 is also connected to the first end of the DCDC redundant protection circuit 400, and the second end of the DCDC redundant protection circuit 400 is connected to the first end of the control board 100. When the power supply line from the vehicle low-voltage battery 10 to the control board 100 is abnormal, the DCDC converter 300 can output a voltage V DCDCThe control board 100 is powered redundantly. That is, when the power supply line from the vehicle low-voltage battery 10 to the control board 100 is normal, the vehicle low-voltage battery 10 provides low-voltage power to the control board 100; when the power supply line from the vehicle low-voltage battery 10 to the control board 100 is abnormal, the DCDC converter 300 outputs a voltage V DCDC The control board 100 is supplied with redundant power. Meanwhile, by connecting the DCDC redundant protection circuit 400 between the second end of the DCDC converter 300 and the first end of the control board 100, when a short circuit or overcurrent occurs in the line between the DCDC converter 300 and the control board 100, the DCDC redundant protection circuit 400 is used for disconnection protection, thereby improving the reliability of the low-voltage power supply of the integrated motor controller 1 at a low cost.

[0085] In the embodiment of the present application, the first end of the lower bridge power module 500 and the first end of the upper bridge power module 600 are both used to connect to the output end of the vehicle high-voltage battery 20; the second end of the lower bridge power module 500 and the second end of the upper bridge power module 600 are both connected to the drive board 200, and the third end of the lower bridge power module 500 and the third end of the upper bridge power module 600 are both connected to the motor 30. The output end of the vehicle high-voltage battery 20 is connected to the high-voltage input end of the lower bridge power module 500 and the upper bridge power module 600, and the drive board 200 is connected to the low-voltage input end of the lower bridge power module 500 and the upper bridge power module 600, so that the lower bridge power module 500 and the upper bridge power module 600 can output three-phase UVW voltage to drive the motor 30 to rotate.

[0086] In the embodiment of the present application, considering that the output failure of the low-voltage battery 10 of the whole vehicle often occurs in the line from the battery to the control board 100, the DCDC converter 300 is set inside the integrated motor controller 1 to output redundant voltage, which can avoid the problem that when the low-voltage line is abnormal, the integrated motor controller 1 is directly shut down, resulting in excessive back electromotive force of the motor and damage to the electronic control hardware. In addition, the redundancy solution has a low cost, can improve the reliability of electronic control products, and can also improve the market competitiveness of electronic control products.

[0087] In the embodiment of the present application, the voltage V output by the DCDC converter 300 in the integrated motor controller 1 is DCDC and the output voltage V of the vehicle low-voltage battery 10 KL30Mutual redundancy is used as the input power supply of the low-voltage battery 10 of the whole vehicle to the control board 100. When the power supply between the low-voltage battery 10 of the whole vehicle and the control board 100 is abnormal, the output of the DCDC converter 300 can be used as a redundant power supply. Compared with the existing products, this solution uses a redundant method of converting high voltage to low voltage, and does not require the addition of high-cost components such as power chips, high-power transformers, high-power switching tubes, high-voltage connectors, etc. The existing DCDC converter of the whole vehicle can be used, and only a DCDC redundant protection circuit 400 needs to be added, which is relatively low in cost.

[0088] In the embodiment of the present application, the DCDC redundant protection circuit 400 may be an overcurrent protection device or circuit such as a low current fuse.

[0089] It should be noted that the embodiment of the present application proposes to use the output of the DCDC converter to provide low-voltage redundant power supply for the integrated motor controller 1, which is also applicable to the whole vehicle solution in which the DCDC converter is not integrated in the integrated motor controller 1. The output of the external DCDC converter can be connected to the integrated motor controller 1 as a low-voltage redundant power supply. It only needs to add a DCDC redundant protection circuit and add a reserve to the low-voltage interface of the integrated motor controller 1. In other words, the embodiment of the present application can cover the whole vehicle solution in which the DCDC converter is arranged inside and outside the motor controller. The proposed low-voltage redundant power supply method is applicable to various vehicle models, and the solution has strong compatibility.

[0090] Embodiment 3

[0091] In one embodiment of the present application, referring to Figure 3 , Figure 3 is a third structural diagram of the integrated motor controller provided in the third embodiment of the present application. Figure 3As shown, the integrated motor controller 1 includes a control board 100, a drive board 200, a DCDC converter 300, a DCDC redundant protection circuit 400, a lower bridge power module 500 and an upper bridge power module 600. Among them, the first end of the DCDC converter 300 is used to connect the output end of the low-voltage battery 10 of the whole vehicle, the second end of the DCDC converter 300 is used to connect the input end of the low-voltage battery 10 of the whole vehicle, and the third end of the DCDC converter 300 is used to connect the output end of the high-voltage battery 20 of the whole vehicle. The second end of the DCDC converter 300 is also connected to the first end of the DCDC redundant protection circuit 400, and the second end of the DCDC redundant protection circuit 400 is connected to the first end of the control board 100. The first end of the lower bridge power module 500 and the first end of the upper bridge power module 600 are both used to connect the output end of the high-voltage battery 20 of the whole vehicle; the second end of the lower bridge power module 500 and the second end of the upper bridge power module 600 are both connected to the drive board 200, and the third end of the lower bridge power module 500 and the third end of the upper bridge power module 600 are both connected to the motor 30. The control board 100 is electrically connected to the driving board 200. The control board 100 includes an input control circuit 110, a voltage stabilizing circuit 120, and a post-stage control circuit 130. The first end of the input control circuit 110 is used as the first end of the control board 100 to connect the output end of the vehicle low-voltage battery 10 and the second end for connecting the DCDC redundant protection circuit 400. The second end of the input control circuit 110 is connected to the first end of the voltage stabilizing circuit 120, the second end of the voltage stabilizing circuit 120 is connected to the first end of the post-stage control circuit 130, and the second end of the post-stage control circuit 130 is connected to the driving board 200.

[0092] In the embodiment of the present application, the first end of the input control circuit 110 is used as the first end of the control board 100, and is used to receive the voltage V output by the low-voltage battery 10 of the vehicle when the power supply line output from the low-voltage battery 10 of the vehicle to the control board 100 is normal. KL30 , and when the power supply line from the vehicle low-voltage battery 10 to the control board 100 is abnormal, the voltage V output by the DCDC converter is received DCDC At the same time, the input control circuit 110 performs power supply control on the control board 100 after receiving the low voltage input. For example, when the integrated motor controller 1 does not need to work, the input control circuit 110 does not output voltage to power other circuits in the control board, which can reduce power consumption to a certain extent.

[0093] In the embodiment of the present application, the voltage stabilizing circuit 120 is connected to the input control circuit 110, and is used to stabilize the output of the input control circuit 110 and transmit it to the subsequent control circuit 130, so as to provide stable power supply for the subsequent control circuit 130. KL30_2(i.e., the voltage output by the input control circuit) is stabilized to a preset voltage value Vstable, and the voltage stabilization circuit 120 can detect the input voltage V KL30_2 Voltage faults such as undervoltage or overvoltage can be detected, and the output can be stopped when a fault is detected to avoid abnormal input voltage and unpredictable faults. The voltage stabilizing circuit 120 can also detect whether the output is overcurrent. If so, a protection mechanism is implemented to limit the output current value to avoid overcurrent in the circuit and burn out the device.

[0094] In the embodiment of the present application, the post-stage control circuit 130 is connected to the voltage stabilizing circuit 120. Due to the voltage stabilizing process of the voltage stabilizing circuit 120, it can be ensured that the voltage flowing into the post-stage control circuit 130 is a stable preset voltage value Vstable, so that the post-stage control circuit 130 does not need to add a voltage stabilizing circuit. For stable power supply, the EMC (Electromagnetic Compatibility) design is simple, which can simplify the design of the transformer circuit in the control board 100 and the driver board 200, so that the total power supply of the control board 100 is stable and reliable. Specifically, EMC refers to the ability of a device or system to operate in accordance with the requirements in its electromagnetic environment and not to generate intolerable electromagnetic interference to any device in its environment. After the power supply is stabilized by the voltage stabilizing circuit 120, the electromagnetic interference generated by the circuit can be reduced, thereby simplifying the design of the transformer circuit in the control board 100 and the driver board 200.

[0095] Embodiment 4

[0096] In one embodiment of the present application, referring to Figure 4 , Figure 4 is a fourth structural diagram of an integrated motor controller provided in the fourth embodiment of the present application. Figure 3As shown, the integrated motor controller 1 includes a control board 100, a drive board 200, a DCDC converter 300, a DCDC redundant protection circuit 400, a lower bridge power module 500 and an upper bridge power module 600. Among them, the first end of the DCDC converter 300 is used to connect the output end of the low-voltage battery 10 of the whole vehicle, the second end of the DCDC converter 300 is used to connect the input end of the low-voltage battery 10 of the whole vehicle, and the third end of the DCDC converter 300 is used to connect the output end of the high-voltage battery 20 of the whole vehicle. The second end of the DCDC converter 300 is also connected to the first end of the DCDC redundant protection circuit 400, and the second end of the DCDC redundant protection circuit 400 is connected to the first end of the control board 100. The first end of the lower bridge power module 500 and the first end of the upper bridge power module 600 are both used to connect the output end of the high-voltage battery 20 of the whole vehicle; the second end of the lower bridge power module 500 and the second end of the upper bridge power module 600 are both connected to the drive board 200, and the third end of the lower bridge power module 500 and the third end of the upper bridge power module 600 are both connected to the motor 30. The control board 100 is electrically connected to the driving board 200. The control board 100 includes an input control circuit 110, a voltage stabilizing circuit 120, and a post-stage control circuit 130. The first end of the input control circuit 110 is used as the first end of the control board 100 to connect the output end of the vehicle low-voltage battery 10 and the second end for connecting the DCDC redundant protection circuit 400. The second end of the input control circuit 110 is connected to the first end of the voltage stabilizing circuit 120, the second end of the voltage stabilizing circuit 120 is connected to the first end of the post-stage control circuit 130, and the second end of the post-stage control circuit 130 is connected to the driving board 200. Among them, the control board 100 also includes a wake-up circuit 140, the first end of the wake-up circuit 140 is connected to the second end of the DCDC redundant protection circuit 400, and the first end of the wake-up circuit 140 is also used to connect the output end of the vehicle low-voltage battery 10. The second end of the wake-up circuit 140 is used to connect the output end of the vehicle start switch 40, and is used to receive the hardware wake-up signal output by the vehicle start switch 40. The third end of the wake-up circuit 140 is used to connect to the output end of the vehicle communication system 50 to receive the network wake-up signal output by the vehicle communication system 50 ; the fourth end of the wake-up circuit 140 is connected to the third end of the input control circuit 110 .

[0097] In the embodiment of the present application, the first end of the wake-up circuit 140 is used to connect to the output end of the vehicle low-voltage battery 10, so that the vehicle low-voltage battery 10 can provide low-voltage power to the wake-up circuit 140. The first end of the wake-up circuit 140 is connected to the second end of the DCDC redundant protection circuit 400, and the first end of the DCDC redundant protection circuit 400 is connected to the second end of the DCDC converter 300. Therefore, when the power supply line output from the vehicle low-voltage battery 10 to the wake-up circuit 140 is abnormal, the DCDC converter 300 can output a voltage V DCDCPower is supplied to the wake-up circuit 140. That is, when the power supply line outputted from the vehicle low-voltage battery 10 to the wake-up circuit 140 is normal, the vehicle low-voltage battery 10 supplies low-voltage power to the wake-up circuit 140; when the power supply line outputted from the vehicle low-voltage battery 10 to the wake-up circuit 140 is abnormal, the DCDC converter 300 outputs a voltage V DCDC Specifically, when the vehicle low-voltage battery 10 is powered normally, the DCDC redundant protection circuit 400 remains disconnected, so that the voltage VDCDC output by the DCDC converter 300 does not enter the wake-up circuit 140 for power supply; when the vehicle low-voltage battery 10 is powered abnormally, the DCDC redundant protection circuit 400 is turned on, so that the voltage VDCDC output by the DCDC converter 300 DCDC Enter the wake-up circuit 140 to provide power.

[0098] In the embodiment of the present application, the vehicle start switch 40 outputs a hardware wake-up signal KL15_WAK to the wake-up circuit 140, and the vehicle communication system 50 outputs a CAN network wake-up signal CAN_WAK to the wake-up circuit 140. After the hardware wake-up signal KL15_WAK or the network wake-up signal CAN_WAK is input into the wake-up circuit 140, the wake-up circuit 140 outputs a wake-up signal WAK to the input control circuit 110. When the input control circuit 110 does not receive the wake-up signal WAK sent by the wake-up circuit 140, it does not output a voltage, and when the input control circuit 110 receives the wake-up signal WAK sent by the wake-up circuit 140, it outputs a voltage VKL30_2. This can prevent the static current from being too large when the integrated motor controller 1 does not need to work, and can achieve low power consumption of the low-voltage battery 10 of the whole vehicle. And it has two wake-up modes, hard line and CAN network. For example, when the key is not turned on, or it cannot be woken up through the hard line, the input control circuit 110 can be woken up through the CAN network to power it.

[0099] In the embodiment of the present application, the input control circuit 110 determines whether to supply power according to the wake-up signal WAK sent by the wake-up circuit 140 , so that the total power input power consumption is low before the integrated motor controller 1 wakes up.

[0100] Embodiment 5

[0101] In one embodiment of the present application, referring to Figure 5 , Figure 5 is a fifth structural diagram of the integrated motor controller provided in the fifth embodiment of the present application. Figure 5As shown, the integrated motor controller 1 includes a control board 100, a drive board 200, a DCDC converter 300, a DCDC redundant protection circuit 400, a lower bridge power module 500 and an upper bridge power module 600. Among them, the first end of the DCDC converter 300 is used to connect the output end of the low-voltage battery 10 of the whole vehicle, the second end of the DCDC converter 300 is used to connect the input end of the low-voltage battery 10 of the whole vehicle, and the third end of the DCDC converter 300 is used to connect the output end of the high-voltage battery 20 of the whole vehicle. The second end of the DCDC converter 300 is also connected to the first end of the DCDC redundant protection circuit 400, and the second end of the DCDC redundant protection circuit 400 is connected to the first end of the control board 100. The first end of the lower bridge power module 500 and the first end of the upper bridge power module 600 are both used to connect the output end of the high-voltage battery 20 of the whole vehicle; the second end of the lower bridge power module 500 and the second end of the upper bridge power module 600 are both connected to the drive board 200, and the third end of the lower bridge power module 500 and the third end of the upper bridge power module 600 are both connected to the motor 30. The control board 100 is electrically connected to the driving board 200. The control board 100 includes an input control circuit 110, a voltage stabilizing circuit 120, and a post-stage control circuit 130. The first end of the input control circuit 110 is used as the first end of the control board 100 to connect the output end of the vehicle low-voltage battery 10 and the second end for connecting the DCDC redundant protection circuit 400. The second end of the input control circuit 110 is connected to the first end of the voltage stabilizing circuit 120, the second end of the voltage stabilizing circuit 120 is connected to the first end of the post-stage control circuit 130, and the second end of the post-stage control circuit 130 is connected to the driving board 200. Among them, the post-stage control circuit 130 includes a power supply protection circuit 131, a power supply control circuit 132, and a main control circuit 133. The first end of the power supply protection circuit 131 is connected to the second end of the voltage stabilizing circuit 120, the second end of the power supply protection circuit 131 is connected to the first end of the power supply control circuit 132, and the power supply protection circuit 131 is also connected to the driving board 200. The second end of the power control circuit 132 is connected to the first end of the main control circuit 133 . The power control circuit 132 is also connected to the driving board 200 . The main control circuit 133 is also connected to the driving board 200 .

[0102] In an embodiment of the present application, the voltage Vstable output by the voltage stabilizing circuit 120 is input to the power supply protection circuit 131, and then the power supply protection circuit 131 outputs the voltage Vstable_1 to the power supply control circuit 132. The power supply protection circuit 131 can determine voltage faults such as undervoltage or overvoltage of the input voltage Vstable, and when a voltage fault is detected, the power supply protection circuit 131 does not output the voltage Vstable_1. At the same time, the power supply protection circuit 131 can determine whether the output is overcurrent, and limit the output current value according to the degree of overcurrent. That is, the power supply protection circuit 131 can disconnect the output when the input voltage is abnormal; when the output current is overcurrent, the output current value can be limited; when a short circuit occurs, the output can be disconnected to protect circuit components.

[0103] In the embodiment of the present application, the power control circuit 132 can be powered by an SBC chip and can output multiple V SBC The power supply (such as +5V) supplies power to the MCU chip, sampling chip, communication chip, sensor, etc. of the main control circuit 133, and also supplies power to the driver board 200. The SBC chip has a power monitoring function. When the output power is abnormal, the fault can be input to the main control circuit 133 through the ss1 pin and the SPI communication pin, thereby obtaining circuit hardware and software protection.

[0104] In the embodiment of the present application, after receiving the power supply voltage output by the power control circuit 132 , the main control circuit 133 can perform driving control on the driving board 200 .

[0105] In one embodiment of the present application, referring to Figure 5 The post-stage control circuit 130 also includes a resolver circuit 134 , a first end of the resolver circuit 134 is connected to the third end of the power supply protection circuit 131 , and a second end of the resolver circuit 134 is connected to the third end of the power supply control circuit 132 .

[0106] In the embodiment of the present application, the output of the power supply protection circuit 131 supplies power to the power circuit of the resolver circuit 134. At the same time, the power control circuit 132 can also supply power to the resolver circuit 134, thereby ensuring the normal operation of the resolver circuit 134.

[0107] Embodiment 6

[0108] In one embodiment of the present application, referring to Figure 6 , Figure 6 6 is a sixth structural diagram of an integrated motor controller provided in Embodiment 6 of the present application. Figure 6As shown, the integrated motor controller 1 includes a control board 100, a drive board 200, a DCDC converter 300, a DCDC redundant protection circuit 400, a lower bridge power module 500 and an upper bridge power module 600. Among them, the first end of the DCDC converter 300 is used to connect the output end of the low-voltage battery 10 of the whole vehicle, the second end of the DCDC converter 300 is used to connect the input end of the low-voltage battery 10 of the whole vehicle, and the third end of the DCDC converter 300 is used to connect the output end of the high-voltage battery 20 of the whole vehicle. The second end of the DCDC converter 300 is also connected to the first end of the DCDC redundant protection circuit 400, and the second end of the DCDC redundant protection circuit 400 is connected to the first end of the control board 100. The first end of the lower bridge power module 500 and the first end of the upper bridge power module 600 are both used to connect the output end of the high-voltage battery 20 of the whole vehicle; the second end of the lower bridge power module 500 and the second end of the upper bridge power module 600 are both connected to the drive board 200, and the third end of the lower bridge power module 500 and the third end of the upper bridge power module 600 are both connected to the motor 30. The control board 100 is electrically connected to the driving board 200. The control board 100 includes an input control circuit 110, a voltage stabilizing circuit 120, and a post-stage control circuit 130. The first end of the input control circuit 110 is used as the first end of the control board 100 to connect the output end of the vehicle low-voltage battery 10 and the second end for connecting the DCDC redundant protection circuit 400. The second end of the input control circuit 110 is connected to the first end of the voltage stabilizing circuit 120, the second end of the voltage stabilizing circuit 120 is connected to the first end of the post-stage control circuit 130, and the second end of the post-stage control circuit 130 is connected to the driving board 200. Among them, the post-stage control circuit 130 includes a power supply protection circuit 131, a power supply control circuit 132, and a main control circuit 133. The first end of the power supply protection circuit 131 is connected to the second end of the voltage stabilizing circuit 120, the second end of the power supply protection circuit 131 is connected to the first end of the power supply control circuit 132, and the power supply protection circuit 131 is also connected to the driving board 200. The second end of the power control circuit 132 is connected to the first end of the main control circuit 133, the power control circuit 132 is also connected to the driving board 200, and the main control circuit 133 is also connected to the driving board 200. The driving board 200 includes a lower bridge driving power module 210, an upper bridge driving power module 220, a lower bridge driving circuit 230 and an upper bridge driving circuit 240. The first end of the lower bridge driving power module 210 is connected to the fourth end of the power supply protection circuit 131, the second end of the lower bridge driving power module 210 is connected to the second end of the main control circuit 133, and the third end of the lower bridge driving power module 210 is connected to the first end of the lower bridge driving circuit 230. The first end of the upper bridge driving power module 220 is connected to the fourth end of the power supply protection circuit 131, the second end of the upper bridge driving power module 220 is connected to the third end of the main control circuit 133, and the third end of the upper bridge driving power module 220 is connected to the first end of the upper bridge driving circuit 240.The second end of the lower bridge driving circuit 230 is connected to the fourth end of the main control circuit 133, and the third end of the lower bridge driving circuit 230 is connected to the second end of the lower bridge power module 500, for transmitting the first driving control signal to the lower bridge power module 500. The second end of the upper bridge driving circuit 240 is connected to the fifth end of the main control circuit 133, and the third end of the upper bridge driving circuit 240 is connected to the second end of the upper bridge power module 600, for transmitting the second driving control signal to the upper bridge power module 600.

[0109] In the embodiment of the present application, the voltage Vstable_1 output by the power supply protection circuit 131 enters the lower bridge drive power module 210, that is, the voltage Vstable_1 supplies power to the lower bridge drive power module 210. At the same time, the main control circuit 133 inputs the control signal CTL_L to the lower bridge drive power module 210, at which time, the lower bridge drive power module 210 outputs the lower bridge three-phase opening voltage Von_L and the shut-off voltage Voff_L. If the main control circuit 133 does not output the control signal CTL_L to the lower bridge drive power module 210, the lower bridge drive power module 210 cannot output voltage. The lower bridge drive power module 210 can judge the voltage faults such as undervoltage or overvoltage of the input voltage Vstable_1, and stop the output when the voltage fault is detected to avoid abnormal input voltage and unpredictable faults. The lower bridge drive power module 210 can also judge whether the output is overcurrent. If it is overcurrent, the protection mechanism is executed to limit the output current value, thereby avoiding the circuit from overcurrent and burning the device. The lower bridge three-phase on-voltage Von_L and off-voltage Voff_L output by the lower bridge driving power module 210 are input to the secondary side of the lower bridge driving circuit 230 for power supply.

[0110] In the embodiment of the present application, similarly, the voltage Vstable_1 output by the power supply protection circuit 131 enters the upper bridge drive power module 220, that is, the voltage Vstable_1 supplies power to the upper bridge drive power module 220. At the same time, the main control circuit 133 inputs the control signal CTL_H to the upper bridge drive power module 220, at which time, the upper bridge drive power module 220 outputs the upper bridge three-phase opening voltage Von_H and the shut-off voltage Voff_H. If the main control circuit 133 does not output the control signal CTL_H to the upper bridge drive power module 220, the upper bridge drive power module 220 cannot output voltage. The upper bridge drive power module 220 can judge the voltage faults such as undervoltage or overvoltage of the input voltage Vstable_1, and stop the output when the voltage fault is detected to avoid abnormal input voltage and unpredictable faults. The upper bridge drive power module 220 can also judge whether the output is overcurrent. If it is overcurrent, the protection mechanism is executed to limit the output current value, thereby avoiding the circuit from overcurrent and burning the device. The upper bridge three-phase on-voltage Von_H and off-voltage Voff_H output by the upper bridge driving power module 220 are input to the secondary side of the upper bridge driving circuit 240 for power supply.

[0111] In the embodiment of the present application, after the power supply protection circuit 131 supplies power to the driver board 200, the lower bridge driver power module 210 and the upper bridge driver power module 220 control whether to output the driver power to the lower bridge driver circuit 230 and the upper bridge driver circuit 240 through the main control circuit 133. This solution can achieve that after the MCU chip of the main control circuit 133, the SBC chip of the power control circuit 132, etc. are initialized, the lower bridge driver power module 210 and the upper bridge driver power module 220 receive the corresponding control signal and then output the driver power, thereby avoiding unnecessary power consumption and reducing the risk of unexpected operation of the driver circuit.

[0112] In one embodiment of the present application, referring to Figure 6 The fourth end of the lower bridge power module 500 is connected to the fourth end of the lower bridge driving circuit 230, and is used to send a first short circuit protection signal to the lower bridge driving circuit 230 when a short circuit occurs. The fourth end of the upper bridge power module 600 is connected to the fourth end of the upper bridge driving circuit 240, and is used to send a second short circuit protection signal to the upper bridge driving circuit 240 when a short circuit occurs.

[0113] In the embodiment of the present application, when the lower bridge power module 500 is short-circuited, a first short-circuit protection signal DESAT_L may be sent to the lower bridge driving circuit 230, so that when a short circuit occurs, the lower bridge driving circuit 230 will stop outputting a voltage signal to the lower bridge power module 500, and the lower bridge power module 500 will be turned off, thereby preventing the lower bridge power module 500 from burning out. Similarly, when the upper bridge power module 600 is short-circuited, a second short-circuit protection signal DESAT_H may be sent to the upper bridge driving circuit 240, so that when a short circuit occurs, the upper bridge driving circuit 240 will stop outputting a voltage signal to the upper bridge power module 600, and the upper bridge power module 600 will be turned off, thereby preventing the upper bridge power module 600 from burning out.

[0114] In one embodiment of the present application, referring to Figure 6 The post-stage control circuit 130 also includes a low voltage difference linear voltage regulator circuit 135, a first end of the low voltage difference linear voltage regulator circuit 135 is connected to the fourth end of the power supply protection circuit 131, and a second end of the low voltage difference linear voltage regulator circuit 135 is connected to the fifth end of the lower bridge drive circuit 230; correspondingly, the fifth end of the upper bridge drive circuit 240 is connected to the third end of the power supply control circuit 132.

[0115] In the embodiment of the present application, the primary power supply of the lower bridge driving circuit 230 is converted from the voltage Vstable_1 to V by the low voltage difference linear voltage regulator circuit 135. LDO After power supply, V LDOThe value is +5V. The lower bridge three-phase on voltage Von_L and off voltage Voff_L output by the lower bridge driving power module 210 are input to the secondary side of the lower bridge driving circuit 230 for power supply. The primary side power supply of the upper bridge driving circuit 240 is V output by the power control circuit 132. SBC The upper bridge three-phase on-voltage Von_H and off-voltage Voff_H output by the upper bridge driving power module 220 are input to the secondary side of the upper bridge driving circuit 240 for power supply. The lower bridge driving circuit 230 and the upper bridge driving circuit 240 use different power supplies for primary side power supply, which can reduce the risk of common cause failure of the lower bridge driving circuit 230 and the upper bridge driving circuit 240.

[0116] Embodiment 7

[0117] Reference Figure 7 , Figure 7 is a seventh structural diagram of an integrated motor controller provided in Embodiment 7 of the present application. Figure 7 As shown, the first end of the low voltage difference linear voltage regulator circuit 135 is connected to the fourth end of the power supply protection circuit 131, and the second end of the low voltage difference linear voltage regulator circuit 135 is connected to the fifth end of the upper bridge drive circuit 240; correspondingly, the fifth end of the lower bridge drive circuit 230 is connected to the third end of the power supply control circuit 132.

[0118] In the embodiment of the present application, the primary power supply of the upper bridge driving circuit 240 is converted from the voltage Vstable_1 to V by the low voltage difference linear voltage regulator circuit 135. LDO After power supply, V LDO The upper bridge three-phase on-voltage Von_H and off-voltage Voff_H output by the upper bridge driving power module 220 are input to the secondary side of the upper bridge driving circuit 240 for power supply. The primary side power supply of the lower bridge driving circuit 230 is V output by the power control circuit 132. SBC The lower bridge three-phase on-voltage Von_L and off-voltage Voff_L output by the lower bridge driving power module 210 are input to the secondary side of the lower bridge driving circuit 230 for power supply. The lower bridge driving circuit 230 and the upper bridge driving circuit 240 use different power supplies for primary side power supply, which can reduce the risk of common cause failure of the lower bridge driving circuit 230 and the upper bridge driving circuit 240.

[0119] Embodiment 8

[0120] Reference Figure 8 , Figure 8 8 is a schematic diagram of the eighth structure of the integrated motor controller provided in the eighth embodiment of the present application. Figure 8As shown, the first end of the low voltage difference linear voltage regulator circuit 135 is connected to the fourth end of the power supply protection circuit 131, and the second end of the low voltage difference linear voltage regulator circuit 135 is connected to the fifth end of the upper bridge drive circuit 240 and the fifth end of the lower bridge drive circuit 230; correspondingly, the fifth end of the lower bridge drive circuit 230 and the fifth end of the upper bridge drive circuit 240 are both connected to the third end of the power control circuit 132.

[0121] In the embodiment of the present application, the primary power supply of the upper bridge driving circuit 240 is converted from the voltage Vstable_1 to V by the low voltage difference linear voltage regulator circuit 135. LDO After power is supplied, the primary side power supply of the upper bridge driving circuit 240 is also provided by the V output by the power control circuit 132. SBC The primary power supply of the lower bridge driving circuit 230 is converted into V by the low voltage difference linear voltage regulator circuit 135. LDO The primary side power supply of the lower bridge driving circuit 230 is also provided by the V output by the power control circuit 132. SBC The lower bridge three-phase on-voltage Von_H and off-voltage Voff_H output by the upper bridge driving power module 220 are input to the secondary side of the upper bridge driving circuit 240 for power supply. The lower bridge three-phase on-voltage Von_L and off-voltage Voff_L output by the lower bridge driving power module 210 are input to the secondary side of the lower bridge driving circuit 230 for power supply. Both the lower bridge driving circuit 230 and the upper bridge driving circuit 240 use two different power supplies (such as V LDO and V SBC ) for primary side power supply, when one of the power supply sources fails, the other power supply can be used to supply power, which can effectively ensure the primary side power supply to the upper bridge driving circuit 240 and the lower bridge driving circuit 230.

[0122] Embodiment 9

[0123] Reference Fig. 9 , Fig. 9 is a ninth structural diagram of an integrated motor controller provided in Embodiment 9 of the present application. Fig. 9 As shown, the lower bridge drive power module 210 includes a lower bridge drive power control circuit 211 and a first transformer 212, the first end of the lower bridge drive power control circuit 211 is connected to the fourth end of the power supply protection circuit 131, the second end of the lower bridge drive power control circuit 211 is connected to the first end of the first transformer 212, the second end of the first transformer 212 is connected to the fourth end of the power supply protection circuit 131, and the third end of the first transformer 212 is connected to the first end of the lower bridge drive circuit 230; correspondingly, the fifth end of the upper bridge drive circuit 240 is connected to the fourth end of the power control circuit 132.

[0124] In the embodiment of the present application, the voltage Vstable_1 output by the power supply protection circuit 131 is input to the lower bridge drive power supply control circuit 211 and the first transformer 212 for power supply, and the lower bridge drive power supply control circuit 211 outputs a control signal VL, and the control signal VL causes the first transformer 212 to output the lower bridge three-phase turn-on voltage Von L and the turn-off voltage Voff L, and at the same time outputs the primary power supply V LDO0-1 That is, the primary power supply of the lower bridge driving circuit 230 is V generated by the lower bridge driving power supply control circuit 211 and the first transformer 212. LDO0-1 Power supply, instead of the low voltage drop linear voltage regulator circuit 135 converting the voltage Vstable_1 into V LDO At this time, the primary side power supply of the upper bridge driving circuit 240 is V output by the power control circuit 132. SBC Power supply. In the embodiment of the present application, the lower bridge driving circuit 230 and the upper bridge driving circuit 240 also use different power supplies for primary-side power supply, which can reduce the risk of common cause failure of the lower bridge driving circuit 230 and the upper bridge driving circuit 240.

[0125] Embodiment 10

[0126] Reference Fig.10 , Fig.10 10 is a schematic diagram of the structure of the integrated motor controller provided in the tenth embodiment of the present application. Fig.10 As shown, the upper bridge drive power module 220 includes an upper bridge drive power control circuit 221 and a second transformer 222, the first end of the upper bridge drive power control circuit 221 is connected to the fourth end of the power supply protection circuit 131, the second end of the upper bridge drive power control circuit 221 is connected to the first end of the second transformer 222, the second end of the second transformer 222 is connected to the fourth end of the power supply protection circuit 131, and the third end of the second transformer 222 is connected to the first end of the upper bridge drive circuit 240; correspondingly, the fifth end of the lower bridge drive circuit 230 is connected to the fourth end of the power control circuit 132.

[0127] In the embodiment of the present application, the voltage Vstable_1 output by the power supply protection circuit 131 is input to the upper bridge drive power supply control circuit 221 and the second transformer 222 for power supply. The upper bridge drive power supply control circuit 221 outputs a control signal VH. The control signal VH causes the second transformer 222 to output the upper bridge three-phase turn-on voltage Von H and the turn-off voltage Voff H, and at the same time outputs the primary power supply V LDO0-2 That is, the primary power supply of the upper bridge driving circuit 240 is V generated by the upper bridge driving power supply control circuit 221 and the second transformer 222. LDO0-2 Power supply, instead of the low voltage drop linear voltage regulator circuit 135 converting the voltage Vstable_1 into V LDOAt this time, the primary side power supply of the lower bridge driving circuit 230 is V output by the power control circuit 132. SBC Power supply. In the embodiment of the present application, the lower bridge driving circuit 230 and the upper bridge driving circuit 240 also use different power supplies for primary-side power supply, which can reduce the risk of common cause failure of the lower bridge driving circuit 230 and the upper bridge driving circuit 240.

[0128] Reference Figure 6-Figure 10 After the primary and secondary sides of the lower bridge drive circuit 230 and the upper bridge drive circuit 240 are powered normally, the main control circuit 133 sends a first drive control signal PWM_L to the lower bridge drive circuit 230 and a second drive control signal PWM_H to the upper bridge drive circuit 240, so that the lower bridge drive circuit 230 outputs a lower bridge drive voltage Vpwm_L that can drive the lower bridge power module 500, and the upper bridge drive circuit 240 outputs an upper bridge drive voltage Vpwm_H that can drive the upper bridge power module 600. After the lower bridge power module 500 and the upper bridge power module 600 receive the lower bridge drive voltage Vpwm_L and the upper bridge drive voltage Vpwm_H, and after the high voltage power supply HV of the vehicle high voltage battery 20 enters the lower bridge power module 500 and the upper bridge power module 600, the three-phase UVW voltage can be output to drive the motor 30 to rotate.

[0129] In the embodiment of the present application, by adopting two different power supply schemes to power the primary side of the lower bridge driving circuit 230 and the upper bridge driving circuit 240, the risk of common cause failure of the upper and lower bridge driving circuits can be reduced. That is, after a power supply scheme fails, the lower bridge driving circuit 230 can be controlled to drive the lower bridge power module 500 to perform a protection action through hardware or software protection, or the upper bridge driving circuit 240 can be controlled to drive the upper bridge power module 600 to perform a protection action through hardware or software protection.

[0130] In the embodiment of the present application, the voltage stabilizing circuit 120, the power supply protection circuit 131, the power control circuit 132, the lower bridge drive power module 210, the upper bridge drive power module 220, the lower bridge drive circuit 230, and the upper bridge drive circuit 240 all have the self-detection capability of voltage anomalies and current anomalies, which can realize self-protection when the voltage or current is abnormal, improve the timeliness of protection, and avoid single module failure, which will cause the failure of the whole circuit. At the same time, for recoverable faults, timely protection can be achieved through self-detection of each circuit, and normal operation can continue after recovery.

[0131] In one embodiment of the present application, referring to Figure 6-Figure 10 The driving board 200 includes an isolation sampling module 250 , a first end of the isolation sampling module 250 is used to connect to the output end of the vehicle high-voltage battery 20 , and a second end of the isolation sampling module 250 is connected to the sixth end of the main control circuit 133 .

[0132] In the embodiment of the present application, the voltage output by the vehicle high-voltage battery 20 after passing through the isolation sampling module 250 enters the main control circuit 133, so that the main control circuit 133 can execute the software protection mechanism according to these voltage signals.

[0133] In one embodiment of the present application, referring to Figure 6-Figure 10 The integrated motor controller 1 also includes a current sampling device 700, a first end of the current sampling device 700 is connected to the third end of the lower bridge power module 500 and the third end of the upper bridge power module 600, and a second end of the current sampling device 700 is connected to the seventh end of the main control circuit 133.

[0134] In the embodiment of the present application, the three-phase current ISEN output by the lower bridge power module 500 and the upper bridge power module 600 can be collected by the current sampling device 700, and these current signals enter the main control circuit 133, so that the main control circuit 133 can execute the software protection mechanism according to these current signals.

[0135] In the embodiment of the present application, the current sampling device 700 may select a current sensor, etc. The current sampling device 700 is installed between the lower bridge power module 500, the upper bridge power module 600 and the motor 30. The current sampling device 700 can measure the three-phase current ISEN output by the lower bridge power module 500 and the upper bridge power module 600. The three-phase current ISEN will be fed back to the input end of the main control circuit 133.

[0136] In the embodiment of the present application, the input voltage VKL30_1 of the input control circuit 110, the output voltage Vstable of the voltage stabilizing circuit 120, the output voltage Vstable_1 of the power supply protection circuit 131, and the output voltage V LDO The output voltage VHV of the high-voltage battery 20 of the vehicle through the isolation sampling module 250 and the three-phase current ISEN output by the current sampling device 700 all enter the main control circuit 133. The MCU chip of the main control circuit 133 receives these voltage and current monitoring signals and can execute the software protection mechanism. That is, the main control circuit 133 executes software protection according to the monitored voltage and current signals and combines the current vehicle working conditions, which can improve the reliability of power supply protection.

[0137] An embodiment of the present application also provides a drive system, including a motor, a reducer, and an integrated motor controller 1 of any embodiment of the present application.

[0138] Since the drive system provided by the embodiments of the present application includes the integrated motor controller 1 of any embodiment of the present application, the drive system can output redundant power to power the control board through the DCDC converter when the low-voltage power supply is abnormal or power is off, thereby improving the reliability of the low-voltage power supply of the integrated motor controller 1 and having lower cost.

[0139] In addition to the integrated motor controller 1 provided in any embodiment of the present application, the drive system also includes a drive motor, a speed changer (reducer), etc. The drive motor is the power core of the whole vehicle, which is equivalent to the engine of a fuel vehicle. It converts the electrical energy provided by the power battery into kinetic energy and drives the electric vehicle through the reducer and half-axle. The integrated motor controller issues corresponding control instructions to control the speed and direction of rotation of the drive motor according to the input signals of the brake pedal and the accelerator pedal or receives the torque command of the whole vehicle controller, thereby driving the electric vehicle. The speed changer (reducer) is a device that converts the high-speed operation of the motor into low-speed and high-torque kinetic energy through gear transmission. It is different from the gearbox of a traditional gasoline vehicle. The reducer has only a fixed reduction ratio and no speed regulation function. The changes in speed and direction are achieved through the motor.

[0140] An embodiment of the present application also provides a vehicle, comprising the drive system provided by an embodiment of the present application.

[0141] In the embodiment of the present application, since the drive system includes the integrated motor controller 1 of any embodiment of the present application, the vehicle can output redundant power to power the control board through the DCDC converter when the low-voltage power supply is abnormal or power is off, thereby improving the reliability of the low-voltage power supply of the integrated motor controller 1 and reducing the cost.

[0142] The embodiments described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0143] Those skilled in the art will appreciate that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than shown in the figures, or a combination of certain steps, or different steps.

[0144] The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separated, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0145] Those skilled in the art will appreciate that all or some of the steps in the methods disclosed above, and the functional modules / units in the systems and devices may be implemented as software, firmware, hardware, or a suitable combination thereof.

[0146] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0147] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0148] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the above units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0149] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0150] The preferred embodiments of the present application are described above with reference to the accompanying drawings, but the scope of the rights of the present application is not limited thereto. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present application should be within the scope of the rights of the present application.

Claims

1. An integrated motor controller, used to be electrically connected to a motor to control the motor, characterized in that: The integrated motor controller includes a control board, a drive board, a DCDC converter and a DCDC redundant protection circuit; The first end of the control board is used to connect to the output end of the low-voltage battery of the vehicle, and the second end of the control board is connected to the first end of the driving board; The first end of the DCDC converter is used to connect the output end of the low-voltage battery of the whole vehicle, the second end of the DCDC converter is used to connect the input end of the low-voltage battery of the whole vehicle, the second end of the DCDC converter is also connected to the first end of the DCDC redundant protection circuit, the second end of the DCDC redundant protection circuit is connected to the first end of the control board, and the third end of the DCDC converter is used to connect the output end of the high-voltage battery of the whole vehicle.

2. The integrated motor controller according to claim 1, characterized in that: The control board includes an input control circuit, a voltage stabilizing circuit and a post-stage control circuit; The first end of the input control circuit serves as the first end of the control board, and is used to connect the output end of the low-voltage battery of the vehicle and the second end of the DCDC redundant protection circuit; The second end of the input control circuit is connected to the first end of the voltage stabilizing circuit, the second end of the voltage stabilizing circuit is connected to the first end of the subsequent control circuit, and the second end of the subsequent control circuit is connected to the driving board.

3. The integrated motor controller according to claim 2, characterized in that: The control board also includes a wake-up circuit, a first end of the wake-up circuit is connected to the second end of the DCDC redundant protection circuit, and the first end of the wake-up circuit is also used to connect to the output end of the low-voltage battery of the whole vehicle; The second end of the wake-up circuit is used to connect to the output end of the vehicle start switch, and is used to receive the hardware wake-up signal output by the vehicle start switch; The third end of the wake-up circuit is used to connect to the output end of the vehicle communication system, and is used to receive the network wake-up signal output by the vehicle communication system; The fourth terminal of the wake-up circuit is connected to the third terminal of the input control circuit.

4. The integrated motor controller according to claim 2, characterized in that: The post-stage control circuit includes a power supply protection circuit, a power supply control circuit and a main control circuit; The first end of the power supply protection circuit is connected to the second end of the voltage stabilizing circuit, the second end of the power supply protection circuit is connected to the first end of the power supply control circuit, and the power supply protection circuit is also connected to the driving board; The second end of the power control circuit is connected to the first end of the main control circuit, the power control circuit is also connected to the driving board, and the main control circuit is also connected to the driving board.

5. The integrated motor controller according to claim 4, characterized in that: The post-stage control circuit also includes a resolver circuit, a first end of the resolver circuit is connected to the third end of the power supply protection circuit, and a second end of the resolver circuit is connected to the third end of the power supply control circuit.

6. The integrated motor controller according to claim 4 or 5, characterized in that: The driving board includes a lower bridge driving power module, an upper bridge driving power module, a lower bridge driving circuit and an upper bridge driving circuit; The first end of the lower bridge driving power module is connected to the fourth end of the power supply protection circuit, the second end of the lower bridge driving power module is connected to the second end of the main control circuit, and the third end of the lower bridge driving power module is connected to the first end of the lower bridge driving circuit; The first end of the upper bridge driving power module is connected to the fourth end of the power supply protection circuit, the second end of the upper bridge driving power module is connected to the third end of the main control circuit, and the third end of the upper bridge driving power module is connected to the first end of the upper bridge driving circuit; The second end of the lower bridge driving circuit is connected to the fourth end of the main control circuit, and the second end of the upper bridge driving circuit is connected to the fifth end of the main control circuit.

7. The integrated motor controller according to claim 6, characterized in that: The integrated motor controller also includes a lower bridge power module and an upper bridge power module; The first end of the lower bridge power module and the first end of the upper bridge power module are both used to connect to the output end of the high-voltage battery of the whole vehicle; the second end of the lower bridge power module is connected to the third end of the lower bridge drive circuit, and the second end of the upper bridge power module is connected to the third end of the upper bridge drive circuit; the third end of the lower bridge power module and the third end of the upper bridge power module are both connected to the motor.

8. The integrated motor controller according to claim 7, characterized in that: The fourth end of the lower bridge power module is connected to the fourth end of the lower bridge drive circuit, and is used to send a first short circuit protection signal to the lower bridge drive circuit when a short circuit occurs; The fourth end of the upper bridge power module is connected to the fourth end of the upper bridge drive circuit, and is used to send a second short circuit protection signal to the upper bridge drive circuit when a short circuit occurs.

9. The integrated motor controller according to claim 7, characterized in that: The integrated motor controller also includes a current sampling device, a first end of the current sampling device is connected to the third end of the lower bridge power module and the third end of the upper bridge power module, and a second end of the current sampling device is connected to the seventh end of the main control circuit.

10. The integrated motor controller according to claim 6, characterized in that: The post-stage control circuit further includes a low voltage difference linear voltage regulator circuit, a first end of the low voltage difference linear voltage regulator circuit is connected to a fourth end of the power supply protection circuit; The second terminal of the low voltage difference linear voltage regulator circuit is connected to the fifth terminal of the lower bridge driving circuit; correspondingly, the fifth terminal of the upper bridge driving circuit is connected to the fourth terminal of the power control circuit; Alternatively, the second terminal of the low voltage difference linear voltage regulator circuit is connected to the fifth terminal of the upper bridge drive circuit; correspondingly, the fifth terminal of the lower bridge drive circuit is connected to the fourth terminal of the power control circuit; Alternatively, the second end of the low voltage difference linear voltage regulator circuit is connected to the fifth end of the upper bridge drive circuit and the fifth end of the lower bridge drive circuit, and the fourth end of the power control circuit is connected to the fifth end of the upper bridge drive circuit and the fifth end of the lower bridge drive circuit.

11. The integrated motor controller according to claim 6, characterized in that: The lower bridge driving power supply module comprises a lower bridge driving power supply control circuit and a first transformer, wherein the first end of the lower bridge driving power supply control circuit is connected to the fourth end of the power supply protection circuit, the second end of the lower bridge driving power supply control circuit is connected to the first end of the first transformer, the second end of the first transformer is connected to the fourth end of the power supply protection circuit, and the third end of the first transformer is connected to the first end of the lower bridge driving circuit; correspondingly, the fifth end of the upper bridge driving circuit is connected to the fourth end of the power supply control circuit; Alternatively, the upper bridge drive power supply module includes an upper bridge drive power supply control circuit and a second transformer, the first end of the upper bridge drive power supply control circuit is connected to the fourth end of the power supply protection circuit, the second end of the upper bridge drive power supply control circuit is connected to the first end of the second transformer, the second end of the second transformer is connected to the fourth end of the power supply protection circuit, and the third end of the second transformer is connected to the first end of the upper bridge drive circuit; correspondingly, the fifth end of the lower bridge drive circuit is connected to the fourth end of the power supply control circuit.

12. The integrated motor controller according to claim 4, characterized in that: The driving board includes an isolation sampling module, a first end of the isolation sampling module is used to connect to the output end of the high-voltage battery of the whole vehicle, and a second end of the isolation sampling module is connected to the sixth end of the main control circuit.

13. The integrated motor controller according to claim 1, characterized in that: The DCDC redundant protection circuit is integrated in the control board.

14. The integrated motor controller according to claim 1, characterized in that: When the low-voltage battery of the vehicle is powered normally, the DCDC redundant protection circuit is disconnected so that the voltage output by the DCDC converter does not enter the control board for power supply; When the low-voltage battery of the vehicle is abnormally powered, the DCDC redundant protection circuit is turned on, so that the voltage output by the DCDC converter enters the control board for redundant power supply; Alternatively, when the voltage output by the low-voltage battery of the whole vehicle is greater than or equal to the voltage output by the DCDC redundant protection circuit, the voltage output by the low-voltage battery of the whole vehicle is used to power the control board; When the voltage output by the vehicle low-voltage battery is lower than the voltage output by the DCDC redundant protection circuit, the voltage output by the DCDC redundant protection circuit supplies power to the control board.

15. A drive system, characterized in that: It comprises a motor, a reducer and an integrated motor controller as described in any one of claims 1-14.

16. A vehicle, characterized in that: Comprising the drive system of claim 15.

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