CN216871027U - Redundant power supply control device for automatic driving control system - Google Patents
Redundant power supply control device for automatic driving control system Download PDFInfo
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- CN216871027U CN216871027U CN202121976137.2U CN202121976137U CN216871027U CN 216871027 U CN216871027 U CN 216871027U CN 202121976137 U CN202121976137 U CN 202121976137U CN 216871027 U CN216871027 U CN 216871027U
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Abstract
The utility model relates to a redundant power supply control device for an automatic driving control system, which is characterized by comprising a main controller, a first filter circuit, a first voltage detection circuit, a second filter circuit, a second voltage detection circuit, a main switch circuit, an emergency switch circuit, a power supply control circuit and a system wake-up signal detection circuit, wherein the main controller is connected with the main switch circuit, the main switch circuit is connected with an emergency switch, the emergency switch is connected with the second filter circuit, the input end of the first filter circuit is connected with a left port, the input end of the second filter circuit is connected with a right port, the left port and the right port are respectively connected with the output ends of two groups of redundant power supplies, and the input end of the first voltage detection circuit is connected with the output end of the first filter circuit Reliable operation, high safety and the like.
Description
The technical field is as follows:
the utility model relates to the technical field of manufacturing of automobile power supply control devices, in particular to a redundant power supply control device which can monitor the power supply state of a system and realize double power supply switching or redundant power supply charging according to the monitoring result and is high in safety and reliability and used for an automatic driving control system.
Background art:
at present, since the unmanned vehicle is in a starting stage, in the field of vehicle manufacturing, the power technology still stays in a single-power-supply state due to factors such as cost control and research and development cycle. However, with the rapid development of the unmanned vehicle, new requirements are provided for the power supply technology, so that a power supply and control scheme capable of meeting the power supply technology of the unmanned vehicle in a new era is urgently needed.
The existing redundant power supply circuit design does not have a perfect and reliable product, and more, two power supplies are connected in series through a hard wire or a redundant circuit is built through a simple hardware circuit; such a solution presents the following problems: 1. when the main power load fails or is short-circuited, the working state of the redundant load is directly influenced, and the whole vehicle can be directly paralyzed; 2. the system is lack of a fault monitoring function, when the system enters an automatic driving state, a fault occurs suddenly, and emergency measures cannot be taken; 3. the reliability is poor, and certain danger is caused to the life safety of the driver.
The utility model content is as follows:
aiming at the defects and shortcomings in the prior art, the utility model provides the redundant power supply control device which can monitor the power supply state of the system and realize the double power supply switching or the redundant power supply charging according to the monitoring result and is high in safety and reliability and used for the automatic driving control system.
The utility model is achieved by the following measures:
a redundant power supply control device for an automatic driving control system is characterized by being provided with a main controller, a first filter circuit, a first voltage detection circuit, a second filter circuit, a second voltage detection circuit, a main switch circuit, an emergency switch circuit, a power supply control circuit and a system wake-up signal detection circuit, wherein the main controller is connected with the main switch circuit, the main switch circuit is connected with the emergency switch, the emergency switch is connected with the second filter circuit, the input end of the first filter circuit is connected with a left port, the input end of the second filter circuit is connected with a right port, the left port and the right port are respectively connected with two groups of redundant power supply output ends, the input end of the first voltage detection circuit is connected with the output end of the first filter circuit, the output end of the first voltage detection circuit is connected with the main controller, the input end of the second voltage detection circuit is connected with the output end of the second filter circuit, the output end of the second voltage detection circuit is connected with the main controller, the main controller is also connected with the power supply control circuit, and the output end of the system wake-up signal detection circuit is connected with the main controller.
The utility model is also provided with a first drive circuit connected with the main switch circuit, the first drive circuit is a high-side switch drive circuit, and a control signal receiving end of the first drive circuit is connected with the main controller; the emergency switch is also provided with a second driving circuit connected with the emergency switch, the second driving circuit is also a high-side switch driving circuit, and a control signal receiving end of the second driving circuit is connected with the main controller.
The input end of the system wake-up signal detection circuit is connected with a wake-up circuit in a whole vehicle control circuit, and when a whole vehicle is started and the vehicle speed reaches 600r/min, the output voltage of the wake-up circuit is larger than 2 Vd.c.; the wake-up circuit acquires IG1 signals and IG2 signals in the whole vehicle controller and can obtain 5v electric signals, the system wake-up signal detection circuit is realized in a voltage acquisition circuit mode and is used for acquiring voltage signals output by the wake-up circuit, and a rail-to-rail operational amplifier NCV20082DR2G provided by an ON company is arranged.
The main switch circuit adopts an ES switch module, the model is MC06XS200, the main switch circuit is communicated with a main controller through an SPI bus, the main controller adopts a TC234 controller, and the power supply control circuit adopts TLF35584QWS 2.
The emergency switch is composed of two ordinary N-type MOS (metal oxide semiconductor) tube backrests, and a main switch circuit is internally provided with 5 double-channel N-type high-side MOS tubes which are connected in parallel or in series with the two ordinary N-type MOS tubes; the main controller is provided with a CAN bus and is connected with a memory, and the memory is realized by M95MO2-DR of ST company.
When the whole vehicle is started, the vehicle speed reaches 600r/min, and the output voltage of the wake-up circuit is more than 2Vd.c., the main power positive stage is connected with the left port and is connected with the main switch circuit through the first filter circuit, and is connected with the right port through the second filter circuit, and is connected with the positive stage of the redundant power supply, at this time, the wake-up circuit inputs a wake-up signal into the power control circuit, the power control circuit is woken up, the power control circuit is connected with the TC234 main controller, the first voltage detection circuit and the second voltage detection circuit, the CAN communication circuit, the memory and the wake-up signal detection circuit to supply power for the whole device, the main controller is connected with the first voltage detection circuit, the second voltage detection circuit, the CAN communication circuit, the memory and the wake-up signal detection circuit, when the main controller starts to work, the wake-up signal is detected through the wake-up signal detection circuit, and after the system has no fault, the main controller TC234 sends out a control signal, firstly sends out the control signal to a second drive circuit, the second drive circuit outputs a drive voltage after receiving the control signal to drive the emergency switch to be conducted, then the TC234 main control chip sends out the control signal to a first drive circuit to enable the first drive circuit to output the drive voltage to drive the main switch circuit to be conducted, and at the moment, a main power supply of the system is connected with the redundant power supply in series through the main switch circuit; when the electric quantity of the redundant power supply is insufficient, the main power supply can charge the redundant power supply at any time; when the electric quantity of the redundant power supply is sufficient, the voltage of the main power supply is equal to that of the redundant power supply, and the power consumption of the redundant power supply controller is the lowest at the moment; when the redundant load is short-circuited, the voltage of the redundant battery is pulled down, the voltage acquired by the second voltage detection circuit is sent to the main controller TC234, the main controller TC234 sends a control signal to the first driving circuit, the first driving circuit stops outputting the driving voltage, the main switch circuit is turned off, at the moment, the main power supply and the main load CAN still work normally, and meanwhile, the main controller sends fault information to the central control through the CAN communication circuit to remind a driver to turn off an automatic driving mode and change the automatic driving mode into a manual driving mode. When the vehicle is flamed out, the main controller TC234 does not detect the wake-up signal voltage, and sends a command to the power control circuit through the SPI bus, so that the power switch circuit is in a sleep state, i.e., the entire system is in a sleep state.
Compared with the prior art, the utility model CAN realize double power supply switching, power supply redundancy backup, voltage acquisition redundancy backup and CAN redundancy backup; the main power supply and the redundant power supply are isolated from faults, and are awakened and dormant by hard wires, so that the intelligent power supply has the remarkable advantages of reasonable structure, reliable work, high safety and the like.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic structural diagram of embodiment 1 of the present invention.
Reference numerals: the device comprises a main controller 1, a first filter circuit 2, a first voltage detection circuit 3, a second filter circuit 4, a second voltage detection circuit 5, a main switch circuit 6, an emergency switch 7, a power control circuit 8, a system wake-up signal detection circuit 9, a left port 10, a right port 11, a first drive circuit 12, a second drive circuit 13, a wake-up circuit 14, a memory 15 and a CAN redundancy backup 16.
The specific implementation mode is as follows:
the utility model is further described below with reference to the accompanying drawings and examples.
The utility model provides a redundant power supply control device for an automatic driving control system as shown in figure 1, which is provided with a main controller 1, a first filter circuit 2, a first voltage detection circuit 3, a second filter circuit 4, a second voltage detection circuit 5, a main switch circuit 6, an emergency switch 7, a power supply control circuit 8 and a system wake-up signal detection circuit 9, wherein the main controller 1 is connected with the main switch circuit 6, the main switch circuit 6 is connected with the emergency switch 7, the emergency switch 7 is connected with the second filter circuit 4, the input end of the first filter circuit 2 is connected with a left port 10, the input end of the second filter circuit 4 is connected with a right port 11, the left port 10 and the right port 11 are respectively connected with two groups of redundant power supply output ends, the input end of the first voltage detection circuit 3 is connected with the output end of the first filter circuit 2, the output end of the first voltage detection circuit 3 is connected with the main controller 1, the input end of the second voltage detection circuit 5 is connected with the output end of the second filter circuit 4, the output end of the second voltage detection circuit 5 is connected with the main controller 1, the main controller 1 is also connected with the power supply control circuit 8, and the output end of the system wake-up signal detection circuit 9 is connected with the main controller 1.
The utility model also comprises a first drive circuit 12 connected with the main switch circuit 6, wherein the first drive circuit 12 is a high-side switch drive circuit, and a control signal receiving end of the first drive circuit 12 is connected with the main controller 1; and a second driving circuit 13 connected with the emergency switch 7 is also arranged, the second driving circuit 13 is also a high-side switch driving circuit, and a control signal receiving end of the second driving circuit 13 is connected with the main controller 1.
The input end of a system wake-up signal detection circuit 9 is connected with a wake-up circuit 14 in a control circuit of a whole vehicle, when the whole vehicle is started and the vehicle speed reaches 600r/min, the output voltage of the wake-up circuit 14 is larger than 2 Vd.c.; the wake-up circuit 14 acquires IG1 signals and IG2 signals in the vehicle control unit and can obtain 5v electric signals, the system wake-up signal detection circuit 9 is realized in a voltage acquisition circuit mode, is used for acquiring voltage signals output by the wake-up circuit 14, and is provided with a rail-to-rail operational amplifier NCV20082DR2G provided by an ON company.
The main switch circuit 6 adopts an ES switch module with the model of MC06XS200, realizes communication with the main controller 1 through an SPI bus, the main controller 1 adopts a TC234 controller, and the power supply control circuit adopts TLF35584QWS 2.
The emergency switch is composed of a backrest 7 of two common N-type MOS (metal oxide semiconductor) tubes, and a main switch circuit is internally provided with 5 double-channel N-type high-side MOS tubes which are connected with the two common N-type MOS tubes in parallel or in series; the main controller 1 is provided with a CAN bus and is connected to a memory 15, and the memory 15 is implemented by M95MO2-DR of ST corporation.
Example 1:
the embodiment provides a redundant power supply control device for an automatic driving control system, which is provided with a main controller 1, a first filter circuit 2, a first voltage detection circuit 3, a second filter circuit 4, a second voltage detection circuit 5, a main switch circuit 6, an emergency switch 7, a power supply control circuit 8 and a system wake-up signal detection circuit 9, wherein the main controller 1 is connected with the main switch circuit 6, the main switch circuit 6 is connected with the emergency switch 7, the emergency switch 7 is connected with the second filter circuit 4, the input end of the first filter circuit 2 is connected with a left port 10, the input end of the second filter circuit 4 is connected with a right port 11, the left port 10 and the right port 11 are respectively connected with two groups of redundant power supply output ends, the input end of the first voltage detection circuit 3 is connected with the output end of the first filter circuit 2, the output end of the first voltage detection circuit 3 is connected with the main controller 1, the input end of the second voltage detection circuit 5 is connected with the output end of the second filter circuit 4, the output end of the second voltage detection circuit 5 is connected with the main controller 1, the main controller 1 is also connected with the power supply control circuit 8, and the output end of the system wake-up signal detection circuit 9 is connected with the main controller 1;
in this example, a first driving circuit 12 connected to the main switching circuit 6 is further provided, the first driving circuit 12 is a high-side switching driving circuit, and a control signal receiving end of the first driving circuit 12 is connected to the main controller 1; a second driving circuit 13 connected with the emergency switch 7 is also arranged, the second driving circuit 13 is also a high-side switch driving circuit, and a control signal receiving end of the second driving circuit 13 is connected with the main controller 1;
in this example, the input end of the system wake-up signal detection circuit 9 is connected with a wake-up circuit 14 in a control circuit of the whole vehicle, and when the whole vehicle is started and the vehicle speed reaches 600r/min, the output voltage of the wake-up circuit 14 is larger than 2 Vd.c.; the wake-up circuit 14 acquires an IG1 signal and an IG2 signal in the vehicle control unit and can obtain a 5v electric signal, the system wake-up signal detection circuit 9 is realized in a voltage acquisition circuit mode, is used for acquiring a voltage signal output by the wake-up circuit 14, and is provided with a rail-to-rail operational amplifier NCV20082DR2G provided by an ON company;
in this example, the main switch circuit 6 adopts an ES switch module with the model of MC06XS200, and realizes communication with the main controller 1 through an SPI bus, the main controller 1 adopts a TC234 controller, and the power supply control circuit adopts TLF35584QWS 2;
in the embodiment, the emergency switch 7 is composed of two ordinary N-type MOS (metal oxide semiconductor) tube backrests, and 5 double-channel N-type high-side MOS tubes and two ordinary N-type MOS tubes are arranged in the main switch circuit and are connected in parallel or in series; the main controller 1 is provided with a CAN bus and is connected with the memory 15, and the memory 15 is realized by adopting M95MO2-DR of ST company;
when the whole vehicle is started, the vehicle speed reaches 600r/min, and the output voltage of the wake-up circuit is greater than 2Vd.c., the main power positive stage is connected with the left port and is connected with the main switch circuit through the first filter circuit, and is connected with the right port through the second filter circuit, and is connected with the positive stage of the redundant power supply, at this time, the wake-up circuit inputs a wake-up signal into the power control circuit, the power control circuit is awakened, the power control circuit is connected with the TC234 main controller, the first voltage detection circuit and the second voltage detection circuit, the CAN communication circuit, the memory and the wake-up signal detection circuit, supplies power to the whole device, the main controller is connected with the first voltage detection circuit, the second voltage detection circuit, the CAN communication circuit, the memory and the wake-up signal detection circuit, when the main controller starts to work, the wake-up signal is detected through the wake-up signal detection circuit, and after the system has no fault, the TC234 sends a control signal, firstly, a control signal is sent to a second driving circuit, the second driving circuit outputs a driving voltage after receiving the control signal to drive an emergency switch to be conducted, then a TC234 main control chip sends the control signal to a first driving circuit to enable the first driving circuit to output the driving voltage to drive a main switching circuit to be conducted, and at the moment, a main power supply of a system is connected with a redundant power supply in series through the main switching circuit; when the electric quantity of the redundant power supply is insufficient, the main power supply can charge the redundant power supply at any time; when the electric quantity of the redundant power supply is sufficient, the voltage of the main power supply is equal to that of the redundant power supply, and the power consumption of the redundant power supply controller is the lowest at the moment; when the redundant load is short-circuited, the voltage of the redundant battery is pulled down, the voltage acquired by the second voltage detection circuit is sent to the main controller TC234, the main controller TC234 sends a control signal to the first driving circuit, the first driving circuit stops outputting the driving voltage, the main switch circuit is turned off, at the moment, the main power supply and the main load CAN still work normally, and meanwhile, the main controller sends fault information to the central control through the CAN communication circuit to remind a driver to turn off an automatic driving mode and change the automatic driving mode into a manual driving mode. When the vehicle is flamed out, the main controller TC234 does not detect the wake-up signal voltage, and sends a command to the power control circuit through the SPI bus, so that the power switch circuit is in a sleep state, i.e., the entire system is in a sleep state.
Compared with the prior art, the utility model CAN realize double power supply switching, power supply redundancy backup, voltage acquisition redundancy backup and CAN redundancy backup 16; the main power supply and the redundant power supply are isolated from faults, and are awakened and dormant by hard wires, so that the intelligent power supply has the remarkable advantages of reasonable structure, reliable work, high safety and the like.
Claims (5)
1. A redundant power supply control device for an automatic driving control system is characterized by being provided with a main controller, a first filter circuit, a first voltage detection circuit, a second filter circuit, a second voltage detection circuit, a main switch circuit, an emergency switch circuit, a power supply control circuit and a system wake-up signal detection circuit, wherein the main controller is connected with the main switch circuit, the main switch circuit is connected with the emergency switch, the emergency switch is connected with the second filter circuit, the input end of the first filter circuit is connected with a left port, the input end of the second filter circuit is connected with a right port, the left port and the right port are respectively connected with two groups of redundant power supply output ends, the input end of the first voltage detection circuit is connected with the output end of the first filter circuit, the output end of the first voltage detection circuit is connected with the main controller, the input end of the second voltage detection circuit is connected with the output end of the second filter circuit, the output end of the second voltage detection circuit is connected with the main controller, the main controller is also connected with the power supply control circuit, and the output end of the system wake-up signal detection circuit is connected with the main controller.
2. The redundant power control device for the automatic driving control system according to claim 1, further comprising a first driving circuit connected to the main switching circuit, wherein the first driving circuit is a high-side switching driving circuit, and a control signal receiving end of the first driving circuit is connected to the main controller; the emergency switch is also provided with a second driving circuit connected with the emergency switch, the second driving circuit is also a high-side switch driving circuit, and a control signal receiving end of the second driving circuit is connected with the main controller.
3. The redundant power control device of claim 1, wherein the system wake-up signal detection circuit is connected to a wake-up circuit in the vehicle control circuit, and the system wake-up signal detection circuit is implemented in a voltage acquisition circuit for acquiring a voltage signal output by the wake-up circuit, and is provided with a rail-to-rail amplifier NCV20082DR2G provided by ON corporation.
4. The redundant power control apparatus of claim 1, wherein said main switching circuit is an ES switch module, model MC06XS200, in communication with a main controller via SPI bus, the main controller being a TC234 controller, and said power control circuit being a TLF35584QWS 2.
5. The redundant power control device for the automatic driving control system according to claim 1, wherein the emergency switch is composed of two ordinary N-type MOS transistors back to back, and the main switch circuit is provided with 5 two-channel N-type high-side MOS transistors and two ordinary N-type MOS transistors which are connected in parallel or in series; the main controller is provided with a CAN bus and is connected with a memory, and the memory is realized by M95MO2-DR of ST company.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121976137.2U CN216871027U (en) | 2021-08-20 | 2021-08-20 | Redundant power supply control device for automatic driving control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121976137.2U CN216871027U (en) | 2021-08-20 | 2021-08-20 | Redundant power supply control device for automatic driving control system |
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| Publication Number | Publication Date |
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| CN216871027U true CN216871027U (en) | 2022-07-01 |
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|---|---|---|---|
| CN202121976137.2U Active CN216871027U (en) | 2021-08-20 | 2021-08-20 | Redundant power supply control device for automatic driving control system |
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- 2021-08-20 CN CN202121976137.2U patent/CN216871027U/en active Active
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