CN210502576U - 24V voltage platform grounding circuit for automatic driving vehicle - Google Patents
24V voltage platform grounding circuit for automatic driving vehicle Download PDFInfo
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- CN210502576U CN210502576U CN201921118696.2U CN201921118696U CN210502576U CN 210502576 U CN210502576 U CN 210502576U CN 201921118696 U CN201921118696 U CN 201921118696U CN 210502576 U CN210502576 U CN 210502576U
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Abstract
The embodiment of the utility model provides a 24V voltage platform ground circuit for autopilot vehicle is related to, include: the 24V voltage platform grounding circuit comprises: the system comprises a DC-DC converter, an Electronic Power Steering (EPS) system, a 12V electric motor group and a 24V power storage battery; the 24V power storage battery is connected with the input end of the DC-DC converter; one path of 12V output of the DC-DC converter is connected with a power supply input end of the 12V electric appliance group, and a ground end of the 12V electric appliance group is connected to a first negative electrode of the DC-DC converter for grounding to form a first loop; and the other path of 12V output of the DC-DC converter is connected with a power supply input end of the EPS system, and a ground end of the EPS system is connected to a second negative electrode of the DC-DC converter for grounding to form a second loop.
Description
Technical Field
The utility model relates to the field of electronic technology, especially, relate to a 24V voltage platform ground circuit for automatic driving vehicle.
Background
Automatic driving has become a hot spot in recent years, automatic driving technology is rapidly developed in the field of environmental sanitation at present, and more automatic driving sweeping vehicles land in parks, communities, industrial parks and other places. The whole vehicle circuit of the automatic driving sweeper is a circuit for supplying power to 24V and 12V electric appliances on the vehicle based on a 24V power storage battery and a direct current-direct current (DC-DC) converter.
The existing ground mode of the whole vehicle circuit of the automatic driving sweeper is that a 24V power storage battery directly supplies power for a walking motor and each sweeping motor, and the ground mode of each 24V motor is that the 24V motor is directly grounded on a chassis frame of the vehicle; the 24V power storage battery supplies power to all 12V controllers and electrical appliances on the vehicle through the DC-DC converter, and the 12V controllers and the electrical appliances are directly grounded on a vehicle body sheet metal part in a grounding mode.
Because the volume of the automatic driving sweeper is small, the electric appliances on the sweeper are more used, the arrangement of the electric appliances is compact, the wiring harnesses are densely arranged, and a high-precision sensing system is assembled at a plurality of positions on the sweeper, the whole circuit of the sweeper easily generates electromagnetic interference on the sensing system on the sweeper, the vehicle positioning and the sensing function on the surrounding environment are invalid, the safe and stable operation of the automatic driving sweeper cannot be ensured, the EPS steering system of the automatic driving sweeper is large in working current and frequent in use, and the automatic driving sweeper is grounded together with other 12V controllers and the electric appliances to cause voltage interference between the automatic driving sweeper and other electric appliances, so that the safe and stable operation of the automatic driving sweeper is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art's defect, provide a 24V voltage platform ground circuit for autopilot vehicle, can reduce whole car circuit electromagnetic interference to each high accuracy sensor in the perception system, solve EPS a steering system simultaneously and frequently during operation and other 12V voltage interference of each other between with electrical apparatus, guarantee the safety and stability operation of autopilot motor sweeper.
In order to achieve the above object, the embodiment of the present invention provides a 24V voltage platform grounding circuit for an automatic driving vehicle, including:
preferably, the 24V voltage platform grounding circuit includes: the system comprises a DC-DC converter, an Electronic Power Steering (EPS) system, a 12V electric motor group and a 24V power storage battery;
the 24V power storage battery is connected with the input end of the DC-DC converter;
one path of 12V output of the DC-DC converter is connected with a power supply input end of the 12V electric appliance group, and a ground end of the 12V electric appliance group is connected to a first negative electrode of the DC-DC converter for grounding to form a first loop;
and the other path of 12V output of the DC-DC converter is connected with a power supply input end of the EPS system, and a ground end of the EPS system is connected to a second negative electrode of the DC-DC converter for grounding to form a second loop.
Preferably, the DC-DC converter is an 24/12V voltage converter.
Preferably, the 24V voltage platform grounding circuit further comprises: a 24V motor set;
the 24V motor set is connected with the 24V power storage battery and is grounded through a chassis frame of the vehicle.
Further preferably, the 24V motor set specifically includes: a driving motor, a sweeping motor group and a fan motor which are positioned on a vehicle chassis.
Preferably, the 12V electric appliance set comprises a control panel, an interactive liquid crystal screen, a USB concentrator, a vehicle control unit AVCU, a vehicle body controller BCM, an ultrasonic radar, a laser radar, a light system, a wheel speed sensor and a buzzer.
Preferably, one 12V output of the DC-DC converter is connected to a fuse box and then to a power supply input terminal of the 12V consumer group.
Preferably, the USB hub converts an input voltage of 12V to an output voltage of 5V.
Preferably, the other 12V output of the DC-DC converter is connected to a fuse box and then connected to a power supply input end of the EPS system.
The embodiment of the utility model provides a pair of 24V voltage platform ground circuit for autopilot vehicle can reduce whole car circuit electromagnetic interference to each high accuracy sensor in the perception system, solves EPS a steering system simultaneously and frequently during operation and other 12V voltage interference of each other between electrical apparatus, guarantees the safety and stability operation of autopilot motor sweeper.
Drawings
Fig. 1 is a schematic structural diagram of a 24V voltage platform grounding circuit for an autonomous vehicle according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a specific 24V voltage platform grounding circuit structure provided in the embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
The embodiment of the utility model provides a pair of a 24V voltage platform ground circuit for automatic driving vehicle can be applied to the automatic driving vehicle field, is particularly useful for the implementation scheme of the whole car circuit ground connection of on-vehicle systems such as automatic motor sweeper.
The embodiment of the utility model provides a 24V voltage platform ground circuit for autopilot vehicle is shown as figure 1, and 24V voltage platform ground circuit includes:
a DC-DC converter 1, an Electronic Power Steering (EPS) system 2, a 12V electric power group 3 and a 24V power storage battery 4; the DC-DC converter 1 is an 24/12V voltage converter.
The 24V power storage battery 4 is connected with the input end of the DC-DC converter 1;
one path of 12V output of the DC-DC converter 1 is connected with the power supply input end of the 12V electric appliance group 3, and the ground end of the 12V electric appliance group 3 is connected to the first cathode 11 of the DC-DC converter 1 for grounding, so that a first loop is formed.
Specifically, the 12V electric appliance group 3 may include a control panel, an interactive liquid crystal screen, a USB hub, an integrated vehicle controller (AVCU), a Body Controller (BCM), an ultrasonic radar, a laser radar, a lighting system, a wheel speed sensor, a buzzer, and other high-precision sensing systems or devices. The USB hub converts an input voltage of 12V to an output voltage of 5V.
The other path of 12V output of the DC-DC converter 1 is connected with a power supply input end of the EPS system 2, and the ground end of the EPS system 2 is connected to the second negative electrode 12 of the DC-DC converter 1 to be grounded, so that a second loop is formed.
In addition, the 24V voltage platform grounding circuit further comprises: a 24V motor set 5;
the 24V motor set 5 is connected with the 24V power storage battery 4 and is grounded through a chassis frame of the vehicle.
The 24V motor group 5 specifically includes: a driving motor, a sweeping motor group and a fan motor which are positioned on a vehicle chassis.
In a specific implementation, a 12V output of the DC-DC converter 1 is connected to a fuse box (not shown in fig. 1) and then to a power supply input of the 12V consumer group 3. The other 12V output of the DC-DC converter 1 is connected to a fuse box and then connected to a power supply input end of the EPS system 2.
For the two 12V platforms of the 12V electric appliance group 3 and the EPS system 2, the loops of the two 12V platforms are independent.
Therefore, the embodiment of the utility model provides a scheme that is used for 24V voltage platform ground circuit of autopilot vehicle has realized that 24V passes through the single-point ground of chassis frame with electrical apparatus to and 12V passes through the single-point ground of the negative pole of DC-DC converter with electrical apparatus, has avoided 12V to pass through the potential difference that produces when the different ground points of automobile body sheet metal component ground connection with electrical apparatus, has improved automobile body pencil effectively and has used electrical apparatus to high accuracy perception system, especially ultrasonic radar's electromagnetic interference. Meanwhile, the EPS system and other 12V electric appliances are divided into two paths to be grounded in the DCDC converter, so that voltage interference between the EPS system and other 12V electric appliances is effectively avoided, and safe and stable operation of the automatic driving sweeper is guaranteed.
Fig. 2 shows a specific application circuit of the embodiment of the present invention, by which the ground scheme of the whole vehicle can be optimized, and the ground isolation between the EPS system and other 12V electrical appliances can be realized.
The embodiment of the utility model provides a 24V voltage platform ground circuit for autopilot vehicle, to the ground connection mode that the electric apparatus received a negative pole formation return circuit of DC-DC converter to whole car circuit 12V, in order to reach the purpose that improves whole car circuit electromagnetic interference, and divide into the two tunnel of isolation with the DC-DC return circuit and solve EPS system and foretell other 12V voltage interference of each other between the electric apparatus, realize reducing the electromagnetic interference of whole car circuit to each high accuracy sensor in the perception system from this, solve EPS a steering system and other 12V voltage interference of each other between the electric apparatus when frequent work simultaneously, guarantee the safe and stable operation of autopilot motor sweeper.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A 24V voltage platform ground circuit for an autonomous vehicle, the 24V voltage platform ground circuit comprising: the system comprises a DC-DC converter, an Electronic Power Steering (EPS) system, a 12V electric motor group and a 24V power storage battery;
the 24V power storage battery is connected with the input end of the DC-DC converter;
one path of 12V output of the DC-DC converter is connected with a power supply input end of the 12V electric appliance group, and a ground end of the 12V electric appliance group is connected to a first negative electrode of the DC-DC converter for grounding to form a first loop;
and the other path of 12V output of the DC-DC converter is connected with a power supply input end of the EPS system, and a ground end of the EPS system is connected to a second negative electrode of the DC-DC converter for grounding to form a second loop.
2. The 24V voltage platform ground circuit of claim 1, wherein the DC-DC converter is an 24/12V voltage converter.
3. The 24V voltage platform ground circuit of claim 1, wherein the 24V voltage platform ground circuit further comprises: a 24V motor set;
the 24V motor set is connected with the 24V power storage battery and is grounded through a chassis frame of the vehicle.
4. The 24V voltage platform ground circuit of claim 3, wherein the 24V generator set specifically comprises: a driving motor, a sweeping motor group and a fan motor which are positioned on a vehicle chassis.
5. The 24V voltage platform grounding circuit of claim 1, wherein the 12V consumer group comprises a control panel, an interactive liquid crystal screen, a USB hub, A Vehicle Control Unit (AVCU), a vehicle Body Controller (BCM), an ultrasonic radar, a laser radar, a lighting system, a wheel speed sensor and a buzzer.
6. A24V voltage platform grounding circuit according to claim 1 or 5, characterized in that a 12V output of the DC-DC converter is connected to a fuse box and then to a power supply input terminal of the 12V consumer group.
7. The 24V voltage platform ground circuit of claim 5, wherein the USB hub converts a 12V input voltage to a 5V output voltage.
8. A 24V voltage platform grounding circuit according to claim 1 wherein the other 12V output of the DC-DC converter is connected to a fuse box and then to the power supply input of the EPS system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921118696.2U CN210502576U (en) | 2019-07-16 | 2019-07-16 | 24V voltage platform grounding circuit for automatic driving vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921118696.2U CN210502576U (en) | 2019-07-16 | 2019-07-16 | 24V voltage platform grounding circuit for automatic driving vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210502576U true CN210502576U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921118696.2U Active CN210502576U (en) | 2019-07-16 | 2019-07-16 | 24V voltage platform grounding circuit for automatic driving vehicle |
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| CN (1) | CN210502576U (en) |
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2019
- 2019-07-16 CN CN201921118696.2U patent/CN210502576U/en active Active
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Address after: B4-006, maker Plaza, 338 East Street, Huilongguan town, Changping District, Beijing 100096 Patentee after: Beijing Idriverplus Technology Co.,Ltd. Address before: B4-006, maker Plaza, 338 East Street, Huilongguan town, Changping District, Beijing 100096 Patentee before: Beijing Idriverplus Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |