CN220023434U

CN220023434U - Automatic driving vehicle

Info

Publication number: CN220023434U
Application number: CN202321013848.9U
Authority: CN
Inventors: 周瑞彬; 张彦福; 龙思习; 张诗笛
Original assignee: Beijing Baidu Netcom Science and Technology Co Ltd
Current assignee: Beijing Baidu Netcom Science and Technology Co Ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-11-14
Anticipated expiration: 2033-04-28

Abstract

The disclosure provides an automatic driving vehicle, relates to the technical field of artificial intelligence, and in particular relates to the technical field of automatic driving. The specific implementation scheme is as follows: a vehicle trunk; the automatic driving hardware is positioned in the vehicle trunk, and a heat exchanger is arranged in the automatic driving hardware; the cooling assembly comprises a liquid storage tank, a hydraulic pump, a heat dissipation assembly and a cooling pipeline, wherein the hydraulic pump, the heat dissipation assembly, the heat exchanger and the liquid storage tank are sequentially connected in series and communicated through the cooling pipeline to form a cooling loop; the heat dissipation assembly is arranged on a vehicle body chassis of the automatic driving vehicle and is positioned on one side, away from the roof of the automatic driving vehicle, of the vehicle body chassis, and the wind inlet surface of the heat dissipation assembly faces the direction of the vehicle head of the automatic driving vehicle and forms an acute angle with the horizontal surface where the vehicle body chassis is positioned. Therefore, the heat dissipation effect on the automatic driving hardware can be improved.

Description

Automatic driving vehicle

Technical Field

The disclosure relates to the technical field of artificial intelligence, in particular to the technical field of automatic driving, and especially relates to an automatic driving vehicle.

Background

The autopilot function of an autopilot vehicle is mainly implemented by autopilot hardware. The automatic driving hardware can sense the surrounding environment through vehicle-mounted sensors such as a camera, a laser radar, a millimeter wave radar, an ultrasonic wave and the like, can make decision judgment according to the acquired environment information, and then makes a corresponding strategy by an artificial intelligent model, such as predicting the motion state of the vehicle and other vehicles or pedestrians in a future period, and performs collision avoidance path planning.

Disclosure of Invention

The present disclosure provides an autonomous vehicle.

According to an aspect of the present disclosure, there is provided an autonomous vehicle including:

a vehicle trunk;

the automatic driving hardware is positioned in the vehicle trunk, and a heat exchanger is arranged in the automatic driving hardware;

the cooling assembly comprises a liquid storage tank, a hydraulic pump, a heat dissipation assembly and a cooling pipeline, wherein the hydraulic pump, the heat dissipation assembly, the heat exchanger and the liquid storage tank are sequentially connected in series and communicated through the cooling pipeline to form a cooling loop;

the heat dissipation assembly is arranged on a vehicle body chassis of the automatic driving vehicle and is positioned on one side, away from the roof of the automatic driving vehicle, of the vehicle body chassis, and the wind inlet surface of the heat dissipation assembly faces the direction of the vehicle head of the automatic driving vehicle and forms an acute angle with the horizontal surface where the vehicle body chassis is positioned.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the disclosure, nor is it intended to be used to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following specification.

Drawings

The drawings are for a better understanding of the present solution and are not to be construed as limiting the present disclosure. Wherein:

FIG. 1 is a schematic illustration of the construction of an autonomous vehicle provided by the present disclosure;

FIG. 2 is an enlarged partial view of area A of FIG. 1;

FIG. 3 is a schematic diagram of a cooling circuit provided by the present disclosure;

FIG. 4 is a schematic view of the heat dissipating assembly of FIG. 1;

FIG. 5 is a schematic diagram of the heat sink of FIG. 1;

fig. 6 is a schematic structural diagram of a heat dissipating assembly provided by the present disclosure.

Detailed Description

Exemplary embodiments of the present disclosure are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present disclosure to facilitate understanding, and should be considered as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of an autonomous vehicle provided by the present disclosure; FIG. 2 is an enlarged partial view of area A of FIG. 1; FIG. 3 is a schematic diagram of a cooling circuit provided by the present disclosure; fig. 4 is a schematic view of the heat dissipating assembly of fig. 1. As shown in fig. 1 to 4, the present disclosure provides an autonomous vehicle including:

a vehicle trunk 10;

the automatic driving hardware 20, the automatic driving hardware 20 is located in the vehicle trunk 10, and a heat exchanger (not shown) is provided in the automatic driving hardware 20;

the cooling assembly 30, the cooling assembly 30 comprises a liquid storage tank 31, a hydraulic pump 32, a heat dissipation assembly 33 and a cooling pipeline 34, wherein the hydraulic pump 32, the heat dissipation assembly 33, the heat exchanger and the liquid storage tank 31 are sequentially connected in series and communicated through the cooling pipeline 34 to form a cooling loop;

the heat dissipation assembly 33 is disposed on the chassis 40 of the autopilot vehicle and is located on a side of the chassis 40 away from the roof of the autopilot vehicle, and the air inlet surface of the heat dissipation assembly 33 faces the head direction of the autopilot vehicle and forms an acute angle with the horizontal surface of the chassis 40.

The vehicle trunk 10 is understood to be a back box of an autonomous vehicle and may be used to store items such as luggage, clothing, and the like.

The above-described autopilot hardware 20 may be understood as a hardware structure for implementing autopilot of an autopilot vehicle. For example, the autopilot hardware 20 may sense the surrounding environment through a vehicle-mounted sensor such as a camera, a laser radar, a millimeter wave radar, an ultrasonic wave, etc., and may make decision judgment according to the acquired environmental information, thereby implementing the autopilot function of the autopilot vehicle.

During the operation of the autopilot hardware 20, the autopilot hardware 20 generates a large amount of heat, and the heat generated by the autopilot hardware 20 can be transferred to the cooling circuit through the heat exchanger, so as to dissipate the heat of the autopilot hardware 20.

The hydraulic pump 32, the heat dissipation assembly 33, the heat exchanger, and the liquid storage tank 31 are sequentially connected in series through the cooling pipe 34, which can be understood as follows: the liquid outlet of the hydraulic pump 32 is communicated with the liquid inlet of the heat dissipation assembly 33, the liquid outlet of the heat dissipation assembly 33 is communicated with the liquid inlet of the heat exchanger, the liquid outlet of the heat exchanger is communicated with the liquid inlet of the liquid storage tank 31, and the liquid outlet of the liquid storage tank 31 is communicated with the liquid inlet of the hydraulic pump 32, so that the cooling loop is formed.

The heat exchanger may be a cooling and heat dissipating pipeline disposed in the autopilot hardware 20, and when the cooling liquid flows through the cooling and heat dissipating pipeline in the autopilot hardware 20, the heat generated by the autopilot hardware 20 may be taken away, so as to dissipate heat of the autopilot hardware 20.

The above-described tank 31 may be understood as a tank structure for storing the cooling liquid; the cooling liquid can be water or other cooling mediums, so long as a circulation interface of the cooling circuit can be realized; the hydraulic pump 32 is used to power the flow of coolant in the cooling circuit.

In the present disclosure, by disposing the heat dissipation assembly 33 on the chassis 40 of the autonomous vehicle and on the side of the chassis 40 facing away from the roof of the autonomous vehicle, that is, by disposing the heat dissipation assembly 33 on the side of the chassis 40 facing away from the roof, the installation space of the cooling assembly 30 in the vehicle trunk 10 can be reduced, and the space utilization in the vehicle trunk 10 can be optimized, relative to disposing the heat dissipation assembly 33 in the vehicle trunk 10.

Moreover, the air inlet surface of the heat dissipation assembly 33 faces the head direction of the automatic driving vehicle and forms an acute angle with the horizontal surface where the vehicle body chassis 40 is located, so that the heat dissipation assembly 33 can be dissipated by utilizing the air flow when the automatic driving vehicle runs, and the heat dissipation effect of the heat dissipation assembly 33 is further improved. The horizontal surface of the wind-entering surface of the heat dissipating assembly 33, where the vehicle chassis 40 is located, is disposed at an acute angle, so that the wind resistance effect of the heat dissipating assembly 33 on the running of the automatic driving vehicle can be reduced.

In one embodiment, a driving structure (not shown) connected to the heat dissipating assembly 33 may be further provided on the vehicle chassis 40, and the driving structure may adjust the direction of the wind entering surface of the heat dissipating assembly 33 based on the traveling direction of the autonomous vehicle. For example, when the autonomous vehicle is traveling forward (i.e., traveling forward), the air inlet surface of the heat dissipating assembly 33 may be adjusted to be disposed toward the head of the autonomous vehicle; when the automatic driving vehicle runs backwards (i.e. is backing), the air inlet surface of the heat dissipating component 33 can be adjusted to be arranged towards the tail direction of the automatic driving vehicle, so that the air flow of the automatic driving vehicle is utilized to the greatest extent, and the heat dissipating effect of the heat dissipating component 33 is improved.

In one embodiment, the heat dissipation assembly 33 includes a radiator 331 and a fan 332, and the hydraulic pump 32, the radiator 331, the heat exchanger, and the liquid tank 31 are sequentially connected in series through a cooling pipe 34 to form the cooling circuit;

the radiator 331 includes the above-mentioned air inlet surface;

the fan 332 is disposed on the radiator 331, and blows the air flow around the radiator 331 to the heat dissipation pipe of the radiator 331 through the air inlet surface.

The cooling liquid output from the hydraulic pump 32 can enter the heat dissipation pipeline of the radiator 331 through the liquid inlet of the radiator 331; moreover, since the cooling circuit is composed of the hydraulic pump 32, the radiator 331, the heat exchanger and the liquid storage tank 31 which are sequentially connected in series through the cooling pipeline 34, namely, the cooling liquid flowing out from the liquid outlet of the heat exchanger and flowing back to the liquid storage tank 31 absorbs the heat generated by the automatic driving hardware 20, namely, the liquid storage tank 31 stores the cooling liquid with the increased temperature, namely, the cooling liquid with the increased temperature is outputted from the hydraulic pump 32; therefore, the radiator 331 is required to radiate the coolant with a relatively high output temperature of the hydraulic pump 32, so that the coolant after being radiated by the radiator 331 flows from the inlet of the heat exchanger to the heat exchanger, thereby radiating the heat of the autopilot hardware 20.

In this embodiment, by providing the fan 332 to increase the flow efficiency of the cold air flow, the heat dissipation effect of the heat sink 331 can be effectively increased.

In one embodiment, the radiator 331 further includes an air outlet surface opposite to the air inlet surface, and the fan 332 is disposed on one side of the air outlet surface of the radiator 331. By this arrangement, the fan 332 can be prevented from blocking the airflow to the air inlet face of the radiator 331 when the autonomous vehicle is traveling, so as to further increase the heat radiation effect of the radiator 331.

In one embodiment, referring to fig. 5 and 6, fig. 5 is a schematic structural diagram of the heat sink in fig. 1; FIG. 6 is a schematic structural view of a heat dissipating assembly provided by the present disclosure; as shown in fig. 5 and 6, the heat dissipation assembly 33 includes a plurality of fans 332, and the plurality of fans 332 are disposed side by side on one side of the air outlet surface of the heat sink 331. By providing a plurality of fans 332, it is possible to further increase the flow efficiency of the cold air flow and further increase the heat radiation effect of the heat sink 331.

In one embodiment, the heat dissipation core of the heat sink 331 may be 140 mm by 140 mm, and the fan 332 may be sized to match the size of the heat sink 331.

It should be noted that the dimensions of the heat dissipation core of the heat sink 331 include, but are not limited to, the dimensions of the heat dissipation core of the heat sink 331 may be designed based on the heat dissipation requirements of the autopilot hardware 20.

In one embodiment, the autonomous vehicle further includes a temperature sensor 50 and a controller 60, the controller 60 is electrically connected to the hydraulic pump 32, the fan 332, and the temperature sensor 50, the temperature sensor 50 is used for detecting the temperature of the cooling fluid after the heat dissipation treatment by the radiator 331, and the controller 60 is used for adjusting the operation parameters of the hydraulic pump 32 and the fan 332 based on the temperature detected by the temperature sensor 50.

The working parameter of the hydraulic pump 32 may be a rotation speed parameter of the hydraulic pump 32, or may be a displacement parameter of the hydraulic pump 32; the operating parameter of the fan 332 may be a rotational speed parameter of the fan 332, i.e., a wind speed output by the fan 332.

In this embodiment, intelligent control of the cooling circuit may be achieved by adjusting the operating parameters of the hydraulic pump 32 and the fan 332 based on the temperature detected by the temperature sensor 50.

For example, when it is detected that the temperature of the coolant is higher than or equal to a predetermined temperature, the controller 60 may increase the rotation speed of the fan 332 and the rotation speed of the hydraulic pump 32 to increase the heat radiation efficiency of the cooling circuit; when the temperature of the coolant is detected to be below the predetermined temperature, the controller 60 may reduce the rotational speed of the fan 332 and the rotational speed of the hydraulic pump 32 to reduce the energy consumption of the cooling circuit and optimize the cooling strategy for the autopilot hardware 20.

In one embodiment, multiple temperature levels may be set and zone control implemented. For example, when the temperature of the coolant is detected to be within the first temperature interval, the first cooling strategy is selected, and the controller 60 may adjust the rotational speed of the fan 332 and the rotational speed of the hydraulic pump 32 according to the first cooling strategy; accordingly, when the temperature of the coolant is detected to be in the second temperature interval, the second cooling strategy is selected, and the controller 60 may adjust the rotational speed of the fan 332 and the rotational speed of the hydraulic pump 32 according to the second cooling strategy. The first cooling strategy and the second cooling strategy may include strategy contents such as the rotation speed of the fan 332 and the rotation speed of the hydraulic pump 32.

In one embodiment, the temperature sensor 50 may be disposed at the inlet of the heat exchanger and detect the temperature of the cooling fluid flowing through the inlet of the heat exchanger.

In this embodiment, by providing the temperature sensor 50 at the liquid inlet of the heat exchanger, the accuracy of temperature detection of the cooling liquid flowing to the heat exchanger can be improved to avoid switching of the cooling strategy due to inaccurate detection results.

In one embodiment, the hydraulic pump 32 is disposed on the body chassis 40 on a side of the body chassis 40 facing away from the roof of the autonomous vehicle.

In this embodiment, by providing the hydraulic pump 32 to the vehicle chassis 40, the installation space of the cooling module 30 within the vehicle trunk 10 may be reduced relative to providing the hydraulic pump 32 within the vehicle trunk 10, thereby optimizing space utilization within the vehicle trunk 10.

In one embodiment, the cooling conduit 34 includes a first conduit 341, a second conduit 342, a third conduit 343, and a fourth conduit 344;

the liquid outlet of the heat exchanger is communicated with the liquid inlet of the liquid storage tank 31 through a first pipeline 341;

the liquid outlet of the liquid storage tank 31 is communicated with the liquid inlet of the hydraulic pump 32 through a second pipeline 342;

the liquid outlet of the hydraulic pump 32 is communicated with the liquid inlet of the radiator 331 through a third pipeline 343;

the liquid outlet of the radiator 331 is communicated with the liquid inlet of the heat exchanger through a fourth pipe 344.

In this embodiment, the hydraulic pump 32, the radiator 331, the heat exchanger, and the tank 31 may be connected in series and communicated through the first pipe 341, the second pipe 342, the third pipe 343, and the fourth pipe 344, so as to form a cooling circuit, thereby implementing heat dissipation of the autopilot hardware 20.

In one embodiment, the second conduit 342 includes a first interface located within the vehicle trunk 10 and a second interface extending through the vehicle chassis 40 and out of the vehicle chassis 40;

the first interface is communicated with a liquid outlet of the liquid storage tank 31, and the second interface is communicated with a liquid inlet of the hydraulic pump 32.

In this embodiment, by disposing the second pipe 342 through the vehicle body chassis 40, it is possible to construct a cooling circuit inside the vehicle trunk 10 and outside the vehicle body chassis 40, thereby improving the heat dissipation effect to the automatic driving hardware 20.

In one embodiment, the fourth conduit 344 includes a third interface located within the vehicle trunk 10 and a fourth interface extending through the vehicle chassis 40 and out of the vehicle chassis 40;

the third interface is communicated with the liquid inlet of the heat exchanger, and the fourth interface is communicated with the liquid outlet of the radiator 331.

In this embodiment, by providing the fourth pipe 344 through the vehicle body chassis 40, it is possible to construct a cooling circuit inside the vehicle trunk 10 and outside the vehicle body chassis 40, thereby improving the heat dissipation effect to the automatic driving hardware 20.

In one embodiment, the autonomous vehicle further includes a passenger compartment 70, a vent 80 is disposed between the passenger compartment 70 and the vehicle trunk 10, and the passenger compartment 70 and the vehicle trunk 10 are in communication with each other through the vent 80.

In this embodiment, by providing the vent 80, it is possible to introduce the cooling air in the passenger compartment 70 into the vehicle trunk 10 through the vent 80 and to generate heat exchange with the autopilot hardware 20 in the case where the autopilot vehicle turns on cool air, thereby further improving the heat dissipation effect of the autopilot hardware 20.

In one embodiment, the liquid storage tank 31 is located within the vehicle trunk 10 and is disposed adjacent to the autopilot hardware 20 in the width direction of the autopilot vehicle.

In this embodiment, by disposing the liquid storage tank 31 in the vehicle trunk 10, the liquid storage tank 31 can be protected from damage, and the service life of the liquid storage tank 31 can be prolonged.

Furthermore, by disposing the liquid storage tank 31 adjacent to the autopilot hardware 20 in the width direction of the autopilot vehicle, the installation space of the liquid storage tank 31 and the autopilot hardware 20 in the vehicle trunk 10 can be reduced, thereby optimizing the space utilization in the vehicle trunk 10

The above detailed description should not be taken as limiting the scope of the present disclosure. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.

Claims

1. An autonomous vehicle, comprising:

a vehicle trunk;

2. The autonomous vehicle of claim 1, wherein the heat dissipating assembly comprises a radiator and a fan, the hydraulic pump, the radiator, the heat exchanger, the tank being in serial communication in sequence through the cooling conduit and forming the cooling circuit;

the radiator comprises the wind inlet surface;

the fan is arranged on the radiator and blows air flow around the radiator to the radiating pipeline of the radiator through the air inlet surface.

3. The autonomous vehicle of claim 2, wherein the radiator further comprises an air outlet face disposed opposite the air inlet face, the fan being disposed on a side of the air outlet face of the radiator.

4. The autonomous vehicle of claim 3, wherein said heat dissipating assembly comprises a plurality of said fans disposed side-by-side on a side of said air outlet face of said radiator.

5. The autonomous vehicle of claim 2, further comprising a temperature sensor and a controller electrically connected to the hydraulic pump, the fan, and the temperature sensor, respectively, the temperature sensor for detecting a temperature of the coolant after the radiator heat rejection process, the controller for adjusting the operating parameters of the hydraulic pump and the fan based on the temperature detected by the temperature sensor.

6. The autonomous vehicle of claim 5, wherein the temperature sensor is disposed at a fluid inlet of the heat exchanger and detects a temperature of the coolant flowing through the fluid inlet of the heat exchanger.

7. The autonomous vehicle of claim 2, wherein the hydraulic pump is disposed on the body chassis on a side of the body chassis facing away from a roof of the autonomous vehicle.

8. The autonomous vehicle of claim 7, wherein the cooling duct comprises a first duct, a second duct, a third duct, and a fourth duct;

the liquid outlet of the heat exchanger is communicated with the liquid inlet of the liquid storage tank through the first pipeline;

the liquid outlet of the liquid storage tank is communicated with the liquid inlet of the hydraulic pump through the second pipeline;

the liquid outlet of the hydraulic pump is communicated with the liquid inlet of the radiator through the third pipeline;

and a liquid outlet of the radiator is communicated with a liquid inlet of the heat exchanger through the fourth pipeline.

9. The autonomous vehicle of claim 8, wherein the second conduit comprises a first interface located within the vehicle trunk and a second interface extending through and out of the vehicle chassis;

the first interface is communicated with a liquid outlet of the liquid storage tank, and the second interface is communicated with a liquid inlet of the hydraulic pump.

10. The autonomous vehicle of claim 8, wherein the fourth conduit comprises a third interface located within the vehicle trunk and a fourth interface extending through and out of the vehicle chassis;

the third interface is communicated with the liquid inlet of the heat exchanger, and the fourth interface is communicated with the liquid outlet of the radiator.

11. The autonomous vehicle of any of claims 1-10, further comprising a passenger compartment, wherein a vent is provided between the passenger compartment and the vehicle trunk, through which vent the passenger compartment and the vehicle trunk communicate with each other.

12. The autonomous vehicle of any of claims 1-10, wherein the tank is located within the vehicle trunk and disposed adjacent the autonomous hardware in a width direction of the autonomous vehicle.