All-in-one control apparatus and vehicle

Abstract

The present invention relates to the technical field of automobile control devices, and particularly relates to an all-in-one control apparatus. The apparatus comprises a PEU module and a sticking detection module integrated on the PEU module, wherein the PEU module comprises an MCU module, the sticking detection module is connected to the MCU module, and the sticking detection module is provided with a charging pile voltage collection interface and a busbar voltage collection interface. In the present invention, on the basis of the integration of a sticking detection portion of a PDU and the PEU module, deep fusion is performed at an architecture level, so that deep fusion of function optimization and cost optimization of the whole vehicle and at a product level are realized at an architecture design level, thereby reducing the overall fusion cost of the PDU and the PEU module.

Description

All-in-one control device and vehicle

[0001] This application claims priority to Chinese patent application No. 202323494585.0, filed on December 20, 2023, with the invention name “A multi-in-one control device and vehicle”. The entire contents of the above Chinese patent application are incorporated into this application by reference. Technical Field

[0002] The present invention relates to the technical field of automobile control equipment, and specifically provides an all-in-one control device and a vehicle. Background Art

[0003] In the high-voltage architecture of new energy vehicles, PEU and PDU are separate controllers. The PDU will integrate relevant fast-charging relays and sampling and diagnostic circuits, and the main fast-charging relay control and diagnostic hardware and software, and adhesion diagnostic software will be placed in the corresponding VCU controller. The corresponding control and diagnosis will require the PDU part of the control and diagnostic signals to be connected to the VCU through the wiring harness. Due to the waterproofing problem of the entire vehicle wiring harness, the cost is high. When the PEU performs torque control, bus voltage sampling is required, and the circuit generates additional costs. Therefore, PEU and PDU are separate controllers, and there are problems such as controller redundancy, high wiring harness cost, and complex system. Summary of the Invention

[0004] In order to overcome the above-mentioned defects, the present invention proposes an all-in-one control device and a vehicle to reduce costs.

[0005] In a first aspect, the present invention provides an all-in-one control device, comprising a PEU module and an adhesion detection module integrated on the PEU module, wherein the PEU module comprises an MCU module, the adhesion detection module is connected to the MCU module, and the adhesion detection module is provided with a charging pile voltage acquisition interface and a bus voltage acquisition interface.

[0006] Furthermore, the adhesion detection module is provided with a high-voltage input terminal and a low-voltage input terminal, and the PEU module is provided with a high-voltage output terminal and a low-voltage output terminal respectively adapted to the high-voltage input terminal and the low-voltage input terminal, the high-voltage output terminal is connected to the high-voltage input terminal, and the high-voltage input terminal is connected to the low-voltage output terminal.

[0007] Furthermore, the charging pile voltage acquisition interface includes a charging pile voltage acquisition positive interface terminal and a charging pile voltage acquisition negative interface terminal, and the bus voltage acquisition interface includes a bus voltage acquisition positive interface terminal and a bus voltage acquisition negative interface terminal;

[0008] The adhesion detection module includes: a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first isolation operational amplifier, a second isolation operational amplifier, a first connection end of a first relay, a second connection end of a first relay, a first connection end of a second relay, a second connection end of a second relay and a switch element, wherein the charging pile voltage acquisition positive electrode interface terminal is respectively connected to the first connection end of the first relay, the first end of the first resistor and the first end of the fifth resistor, the second end of the first resistor is respectively connected to the first end of the second resistor and the first end of the switch element, the second end of the second resistor is connected to the charging pile voltage acquisition negative electrode interface terminal, and The second end of the fifth resistor is respectively connected to the first end of the sixth resistor and the first pin of the first isolation operational amplifier, the second end of the sixth resistor is connected to the negative interface terminal of the charging pile voltage collection, the bus voltage collection positive port is respectively connected to the second connection terminal of the first relay and the first end of the third resistor, the second end of the third resistor is respectively connected to the first end of the fourth resistor, the second end of the switch element and the first end of the seventh resistor, the second end of the fourth resistor is connected to the bus voltage collection negative interface port, the bus voltage collection negative interface port is connected to the second connection terminal of the second relay, and the bus voltage collection positive interface port is connected to the first connection terminal of the second relay;

[0009] The second end of the seventh resistor is respectively connected to the first end of the eighth resistor and the fourth pin of the second isolation operational amplifier, the second end of the eighth resistor is grounded, the fifth pin of the second isolation operational amplifier is connected to the high voltage input end, and the low voltage input end is connected to the second pin of the first isolation operational amplifier.

[0010] Furthermore, the first isolation operational amplifier includes an isolation operational amplifier element and an isolation DCDC converter.

[0011] Furthermore, the device also includes a first connecting member, wherein the first connecting member is connected to the charging pile voltage acquisition interface and the bus voltage acquisition interface respectively.

[0012] Furthermore, the first connecting member is a wiring harness socket.

[0013] Furthermore, the PEU module also includes a relay control module for controlling a relay, and the relay control module is connected to the MCU module.

[0014] Furthermore, the device further includes a second connecting member, wherein the second connecting member is connected to the relay control module.

[0015] Furthermore, the second connecting member is a wiring harness socket.

[0016] Furthermore, the relay includes a first relay and a second relay, the first relay is connected between the positive pole of the power supply and the positive pole of the charging pile, and the second relay is connected between the negative pole of the power supply and the negative pole of the charging pile.

[0017] In a second aspect, the present invention provides a vehicle comprising the all-in-one control device according to the first aspect.

[0018] The above one or more technical solutions of the present invention have at least one or more of the following beneficial effects:

[0019] In the technical solution of the present invention, the adhesion detection part based on the PDU and the PEU module are integrated, and deep integration is achieved at the architectural level, thereby realizing deep integration of functional optimization and cost optimization at the vehicle and product levels at the architectural design level, and reducing the overall integration cost of the PDU and PEU modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The disclosure of the present invention will be more easily understood with reference to the accompanying drawings. Those skilled in the art will readily appreciate that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. Furthermore, similar numbers in the drawings represent similar components, wherein:

[0021] FIG1 is a schematic block diagram of the main structure of an all-in-one control device according to an embodiment of the present invention;

[0022] FIG2 is a schematic diagram of the connection between a relay and a charging pile according to an embodiment of the present invention;

[0023] FIG3 is a schematic diagram of a main circuit structure of an adhesion detection module according to an embodiment of the present invention.

[0024] List of figure marks: 1PEU module, 2 adhesion detection module, 3 power supply, 4 charging pile, 5 first relay, 6 second relay, 7 acquisition positive interface terminal, 8 charging pile voltage acquisition negative interface terminal, 9 bus voltage acquisition positive interface terminal, 10 bus voltage acquisition negative interface port, 11 first relay first connection terminal, 12 first relay second connection terminal, 13 second relay first connection terminal, 14 second relay second connection terminal, 15 second relay second connection terminal. DETAILED DESCRIPTION

[0025] Some embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0026] In the description of the present invention, a "module" may include hardware, software, or a combination of the two. A module may include hardware circuits, various suitable sensors, communication ports, and memory, or may include software components such as program code, or may be a combination of software and hardware.

[0027] In the present invention, PEU is a power electronic integrated module for new energy vehicles. PDU (Power Distribution Unit) is a power distribution unit.

[0028] Referring to Figure 1, the present invention provides an all-in-one control device, including a PEU module 1 and an adhesion detection module 2 integrated on the PEU module 1, the PEU module 1 includes an MCU module 1-1, the adhesion detection module 2 is connected to the MCU module 1-1, and the adhesion detection module 2 is provided with a charging pile voltage acquisition interface and a bus voltage acquisition interface.

[0029] The adhesion detection module 2 has two functions. One is that when the car is ready to charge, the car stops at the charging pile. First, the voltage at the charging pile is checked by the adhesion detection module, that is, the positive and negative voltages of the charging pile are received through the electric pile voltage acquisition interface, so as to judge whether the relay can be closed normally. If it can, a charging circuit can be formed after closing. It should be noted that it is necessary to judge before closing. Here, the structure of the relay and the charging pile 4 is described. With reference to Figure 2, the relays of the present invention include a first relay 5 and a second relay 6. The first relay 5 is connected between the positive pole of the power supply 3 and the positive pole of the charging pile 4, and the second relay 6 is connected between the negative pole of the power supply 3 and the negative pole of the charging pile 4. The power supply 3 is used to provide electrical energy to the charging pile 4. The first relay 5 is used to control the circuit between the positive pole of the power supply 3 and the positive pole of the charging pile 4. The second relay 6 is used to control the circuit between the negative pole of the power supply 3 and the negative pole of the charging pile 4.

[0030] Before the relay (including the first relay 5 and the second relay 6) is closed, in order to avoid excessive voltage difference between the power supply 3 and the charging pile 4, it is necessary to first judge the voltage condition of the charging pile 4. Therefore, the adhesion detection module needs to obtain the voltage of the charging pile 4 through the charging pile voltage acquisition interface to realize the first function of the above-mentioned adhesion detection module 2.

[0031] When the adhesion detection module 2 determines that the relay can be closed normally, the charging pile charges the car normally. After charging is completed, the adhesion detection module 2 needs to judge whether the relay is actually disconnected when it should be disconnected. The adhesion detection module 2 obtains the voltage of the charging pile 4 through the charging pile voltage acquisition interface, and performs logical judgment based on the charging pile voltage to realize adhesion detection.

[0032] After the car is fully charged, it is disconnected from the charging station. The PEU module 1 drives the motor, powering the new energy vehicle. The motor's source is the battery, outputting three-phase current to propel the vehicle. The PEU module converts the high-voltage battery DC voltage into a three-phase AC voltage to drive the motor. The control system requires sampling the DC bus voltage when the PEU module is driving the motor. The PEU module converts the high-voltage battery DC voltage into a three-phase AC voltage to drive the motor. The control system requires sampling the DC bus voltage at the PEU battery terminal.

[0033] Adhesion detection is only performed after fast charging is completed, and the timing of the torque control of the PEU module is staggered. Therefore, when adhesion detection is not performed, the PEU module 1 needs bus voltage sampling for torque control. The PEU module 1 uses the bus voltage acquisition interface of the adhesion detection module 2 to obtain the DC bus voltage when the above-mentioned PEU module drives the motor, and performs bus voltage sampling.

[0034] In one embodiment, the adhesion detection module is provided with a high-voltage input terminal and a low-voltage input terminal, and the PEU module is provided with a high-voltage output terminal and a low-voltage output terminal respectively adapted to the high-voltage input terminal and the low-voltage input terminal, the high-voltage output terminal is connected to the high-voltage input terminal, and the high-voltage input terminal is connected to the low-voltage output terminal.

[0035] When the adhesion detection module 2 is working, it requires high-voltage 5v and low-voltage 5v power supplies, and the PEU module 1 itself has high-voltage 5v and low-voltage 5v power supplies. After integration, the PEU module 1 supplies power to the adhesion detection module 2 and uses the adhesion detection module 2 for voltage sampling at a staggered timing. The adhesion detection module 2 can remove the external power supply and use the high-voltage 5v and low-voltage 5v power supplies of the PEU module 1.

[0036] In this embodiment, the high voltage input terminal and the low voltage input terminal on the adhesion detection module are respectively a high voltage 5V input terminal and a low voltage 5V input terminal. The high voltage output terminal and the low voltage output terminal on the PEU module are respectively a high voltage 5V output terminal and a low voltage 5V output terminal.

[0037] In one embodiment, referring to FIG3 , the charging pile voltage acquisition interface includes a charging pile voltage acquisition positive interface terminal 7 and a charging pile voltage acquisition negative interface terminal 8 , and the bus voltage acquisition interface includes a bus voltage acquisition positive interface terminal 9 and a bus voltage acquisition negative interface port 10 ;

[0038] The adhesion detection module includes: a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a first isolation operational amplifier D1, a second isolation operational amplifier D2, a first connection terminal 11 of a first relay, a second connection terminal 12 of a first relay, a first connection terminal 13 of a second relay, a second connection terminal 14 of a second relay and a switch element S3, wherein the charging pile voltage acquisition positive interface terminal 7 is respectively connected to the first connection terminal 11 of the first relay, the first end of the first resistor R1 and the first end of the fifth resistor R5, the second end of the first resistor R1 is respectively connected to the first end of the second resistor R2 and the first end of the switch element S3, the second end of the second resistor R2 is respectively connected to the charging pile voltage acquisition negative interface terminal 8 and the first end of the second resistor R3. The second relay is connected to the first connection terminal 13, the second end of the fifth resistor R5 is respectively connected to the first end of the sixth resistor R6 and the first pin of the first isolation operational amplifier D1, the second end of the sixth resistor R6 is connected to the charging pile voltage collection negative interface terminal 8, the bus voltage collection positive interface terminal is respectively connected to the second connection terminal 2 of the first relay and the first end of the third resistor R3, the second end of the third resistor R3 is respectively connected to the first end of the fourth resistor R4, the second end of the switch S3 and the first end of the seventh resistor R7, the second end of the fourth resistor R4 is connected to the bus voltage collection negative interface port 10, the bus voltage collection negative interface port 10 is connected to the second connection terminal 14 of the second relay, and the bus voltage collection positive interface terminal 8 is connected to the first connection terminal 13 of the second relay;

[0039] The second end of the seventh resistor R7 (also referred to as the first Rs resistor) is respectively connected to the first end of the eighth resistor R8 (also referred to as the second Rs resistor) and the fourth pin of the second isolation operational amplifier D2. The second end of the eighth resistor R8 is grounded. The fifth pin of the second isolation operational amplifier D2 is connected to the high-voltage input terminal, and the low-voltage input terminal is connected to the second pin of the first isolation operational amplifier D1.

[0040] The low voltage input terminal is used to input the low voltage 5V of the PEU, and the high voltage input terminal is used to input the high voltage 5V of the PEU.

[0041] The first relay first connection terminal 11 and the first relay second connection terminal 12 are used to connect to the first relay S1.

[0042] The second relay first connection terminal 13 and the second relay second connection terminal 14 are used to connect to the first relay S2.

[0043] In this embodiment, the charging pile voltage collection positive electrode interface terminal 7 and the charging pile voltage collection negative electrode interface terminal 8 are connected to the charging pile positive electrode and the charging pile negative electrode respectively.

[0044] The first value VO1 can be output through the sixth pin of the second isolation amplifier D2.

[0045] The second value VO2 can be outputted through the third pin of the first isolation operational amplifier D1.

[0046] The second value VO2 can be used to detect the voltage of the charging pile and determine whether the relay can be closed normally before charging. After the first relay and the second relay are closed at the same time, the power supply and the charging pile form a charging circuit.

[0047] When performing adhesion detection, the MCU module 1-1 outputs a control signal to drive the switch element S3, and controls the switch element S3 to open and close according to the preset control instructions. The four states of the first value VO1 can be obtained through the control instructions. The four states can be used to know the four states of the first relay S1 and the second relay S2. The four states of the first relay S1 and the second relay S2 include: 1. Both the first relay and the second relay are adhered (adhesion means that they are not disconnected when they should be disconnected); 2. Only the first relay is adhered; 3. Only the second relay is adhered; 4. Both the first relay and the second relay are not adhered.

[0048] The four states of the first value VO1 can be used to determine which relay is stuck, thereby achieving sticking detection.

[0049] When the PEU performs torque control, the charging process is not involved, so it is completely staggered with the adhesion detection sequence. At this time, the bus voltage needs to be collected. At this time, the switch S3 is disconnected, the positive interface terminal of the bus voltage collection is connected to the positive pole of the power supply where the bus voltage is located, and the negative positive interface terminal of the bus voltage collection is connected to the negative pole of the power supply where the bus voltage is located for voltage sampling.

[0050] In one embodiment, the first isolation op amp includes an isolation op amp component and an isolation DC-DC converter. The first isolation op amp is an integrated component, integrating the isolation op amp component and the isolation DC-DC converter. If the first isolation op amp is only an isolation op amp component, an isolation DC-DC converter needs to be connected in series with the low-voltage input terminal.

[0051] In one embodiment, the device further includes a first connector connected to the adhesion detection module, wherein the first connector is connected to a relay, and the adhesion detection module transmits a voltage signal across the relay through the first connector.

[0052] The first connecting member is a wiring harness socket.

[0053] The charging pile voltage acquisition interface and the bus voltage acquisition interface obtain corresponding voltage signals through the wiring harness connected to the first connector. Specifically, the voltage detection signal is transmitted through the detection signal line connected to the first connector, so as to realize the adhesion detection module to detect the voltage of the charging pile before charging, adhesion detection after charging, and bus voltage acquisition when the PEU performs motor torque control when not charging.

[0054] In one embodiment, the PEU module also includes a relay control module for determining the connection status of the relay and controlling the opening and closing of the relay. The relay control module is connected to the MCU module. The MCU module is used to determine the relay status and transmit control instructions. After receiving the instructions, the relay control module controls the opening and closing of the relay.

[0055] The relay is connected to the charging pile and is used to turn on or off the charging of the charging pile.

[0056] The relays in this embodiment include the first relay 5 ( S1 ) and the first relay 6 ( S2 ) shown in FIG. 2 and FIG. 3 .

[0057] In one embodiment, the device further includes a second connecting member connected to the relay control module.

[0058] The second connector is a wiring harness socket. The second connector is used to connect to a relay, and the relay control module transmits a control signal of the relay via a control signal line on the second connector.

[0059] The relay includes a first relay 5 (corresponding to S1 in Figure 3) and a second relay 6 (corresponding to S2 in Figure 3), wherein the first relay 5 is connected between the positive pole of the power supply and the positive pole of the charging pile, and the second relay 6 is connected between the negative pole of the power supply and the negative pole of the charging pile.

[0060] The present invention also includes a vehicle comprising the all-in-one control device.

[0061] The adhesion detection module in the present invention is a module used for adhesion detection on the original PDU module. After circuit improvement, the improvement is to remove the isolation and LDO regulator of the original adhesion detection module of the PDU module, and power the original module through the high voltage 5v and low voltage 5v of the PEU to form the adhesion detection module in the present invention.

[0062] A separate PDU module requires an external wiring harness for control. Now, the PEU's MCU is used for diagnosis, and signal lines are used to transmit detection signals and control lines to transmit control signals, eliminating the need for an external wiring harness for the PDU. Since the wiring harness of the entire vehicle has requirements for waterproofing and shockproofing, the cost is relatively high. In this way, the integration of the PDU module and the PEU module of the present invention can reduce costs.

[0063] Because there are requirements such as waterproofing on the outside of the vehicle, the cost is greatly reduced compared to the form of PDU and PEU being separated in the vehicle.

[0064] Therefore, the PEU module can collect voltage based on the adhesion detection module of the original PDU module. The adhesion detection module of the PDU module uses the MCU module for judgment and relay control. After the two are reused, the overall architecture integrated design can significantly reduce costs.

[0065] The present invention integrates PDU product hardware into PEU products, achieving deep integration at the architectural level, thereby realizing functional and cost optimization at the vehicle and product levels.

[0066] In summary, the present invention is an all-in-one control device with an integrated PDU adhesion detection and control architecture design within the PEU. This all-in-one product, through its internal architecture design, allows the PDU functions to share the PEU power supply, the PEU's high-voltage sampling function to share some of the PDU adhesion detection circuitry, and the charging port voltage sampling function to share some of the PDU adhesion detection circuitry. By deeply integrating PDU functions into the PEU architecture, the all-in-one product can achieve cost optimization. Furthermore, integrating the PDU product design into the EDS can reduce vehicle wiring harness costs and improve functional reliability.

[0067] Furthermore, it should be understood that since the configuration of each module is merely for the purpose of illustrating the functional units of the apparatus of the present invention, the physical devices corresponding to these modules may be the processor itself, or a portion of the software in the processor, a portion of the hardware, or a combination of software and hardware. Therefore, the number of modules in the figure is merely illustrative.

[0068] Those skilled in the art will appreciate that the various modules in the device can be adaptively split or merged. Such splitting or merging of specific modules does not cause the technical solution to deviate from the principles of the present invention. Therefore, the technical solutions after splitting or merging will fall within the scope of protection of the present invention.

[0069] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. An all-in-one control device, characterized in that: It includes a PEU module and an adhesion detection module integrated on the PEU module, the PEU module includes an MCU module, the adhesion detection module is connected to the MCU module, and the adhesion detection module is provided with a charging pile voltage collection interface and a bus voltage collection interface.

2. The device according to claim 1, characterized in that The adhesion detection module is provided with a high-voltage input terminal and a low-voltage input terminal, and the PEU module is provided with a high-voltage output terminal and a low-voltage output terminal respectively adapted to the high-voltage input terminal and the low-voltage input terminal, the high-voltage output terminal is connected to the high-voltage input terminal, and the high-voltage input terminal is connected to the low-voltage output terminal.

3. The device according to claim 2, characterized in that The charging pile voltage collection interface includes a charging pile voltage collection positive electrode interface terminal and a charging pile voltage collection negative electrode interface terminal, and the bus voltage collection interface includes a bus voltage collection negative electrode interface port; The adhesion detection module includes: a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first isolation operational amplifier, a second isolation operational amplifier, a first connection end of a first relay, a second connection end of a first relay, a first connection end of a second relay, a second connection end of a second relay and a switch element, wherein the charging pile voltage collection positive electrode interface terminal is respectively connected to the first connection end of the first relay, the first end of the first resistor and the first end of the fifth resistor, the second end of the first resistor is respectively connected to the first end of the second resistor and the first end of the switch element, the second end of the second resistor is connected to the charging pile voltage collection negative electrode interface terminal, and The second end of the fifth resistor is respectively connected to the first end of the sixth resistor and the first pin of the first isolation amplifier, the second end of the sixth resistor is connected to the negative interface terminal of the charging pile voltage collection, the bus voltage collection positive port is respectively connected to the second connection end of the first relay and the first end of the third resistor, the second end of the third resistor is respectively connected to the first end of the fourth resistor, the second end of the switch and the first end of the seventh resistor, the second end of the fourth resistor is connected to the bus voltage collection negative interface port, the bus voltage collection negative interface port is connected to the second connection end of the second relay, and the bus voltage collection positive interface port is connected to the first connection end of the second relay; The second end of the seventh resistor is respectively connected to the first end of the eighth resistor and the fourth pin of the second isolation operational amplifier, the second end of the eighth resistor is grounded, the fifth pin of the second isolation operational amplifier is connected to the high voltage input terminal, and the low voltage input terminal is connected to the second pin of the first isolation operational amplifier.

4. The device according to claim 3, characterized in that The first isolation operational amplifier includes an isolation operational amplifier element and an isolation DCDC converter.

5. The device according to claim 1, characterized in that The device also includes a first connector, wherein the first connector is connected to the charging pile voltage collection interface and the bus voltage collection interface respectively.

6. The device according to claim 5, characterized in that The first connecting member is a wiring harness socket.

7. The device according to claim 1, characterized in that The PEU module also includes a relay control module for controlling a relay, and the relay control module is connected to the MCU module.

8. The device according to claim 7, characterized in that The device further comprises a second connecting member, wherein the second connecting member is connected to the relay control module.

9. The device according to claim 8, characterized in that The second connecting member is a wiring harness socket.

10. The device according to claim 7, characterized in that The relay includes a first relay and a second relay, the first relay is connected between the positive electrode of the power supply and the positive electrode of the charging pile, and the second relay is connected between the negative electrode of the power supply and the negative electrode of the charging pile.

11. A vehicle, characterized in that: An all-in-one control device comprising any one of claims 1-10.

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