CN110877604A - Automatic brake device and system for copilot - Google Patents
Automatic brake device and system for copilot Download PDFInfo
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- CN110877604A CN110877604A CN201911224927.2A CN201911224927A CN110877604A CN 110877604 A CN110877604 A CN 110877604A CN 201911224927 A CN201911224927 A CN 201911224927A CN 110877604 A CN110877604 A CN 110877604A
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- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
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- Engineering & Computer Science (AREA)
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- Braking Elements And Transmission Devices (AREA)
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Abstract
The invention discloses an automatic brake device and system for a copilot, wherein the device comprises: the device comprises a fixed plate, an electric push rod, a swing arm, a sliding support, a clamping mechanism and an auxiliary brake rod; the electric brake device comprises a fixed plate, an electric push rod, a clamping mechanism, a sliding support, a sliding groove and a brake lever, wherein the fixed plate is fixed on a floor of a copilot, the tail end of the electric push rod is rotatably arranged on the fixed plate, the front end of the electric push rod is connected with one end of the sliding support through the swing arm, the other end of the sliding support is fixedly connected with the input end of the braking lever through the clamping mechanism; the output end of the auxiliary brake rod penetrates through the bottom of the vehicle console and then is erected on the brake pedal arm of the main driving position; the swing arm is rotatably mounted on the fixed plate. The invention has simple structure, high stability and low hardware cost, and is suitable for any examination vehicle type; the structure is small and exquisite, easily the installation, is fit for different motorcycle types, can install in copilot position as required, has improved the security of driving.
Description
Technical Field
The invention relates to an automatic brake device and system for a copilot, and belongs to the technical field of vehicle braking.
Background
Along with the continuous improvement of living standard of people, convenient traffic trip is a big demand of people, and the safety of trip is more important. The motor vehicle driving skill receives more and more attention of people, tens of thousands of students take driving licenses every year, and the automobile can be driven to get on the road after reaching the standard through training of driving professional skills and final checking, so that traffic accidents occurring in the driving process of the automobile are avoided as much as possible, not only can certain influence be caused on the automobile, but also very serious threats are generated on the safety and the economy of people.
The driving skill examination of the motor vehicle driver at the present stage of China adopts a judging mode combining computer judgment and manual judgment of an examiner. At present, although data acquisition and automatic assessment and scoring of most examination items are realized, some examination items still need on-board supervision of inspectors. Such as: in the subject three test (the road driving skill of a motor vehicle driver), a invigilator is used as an auxiliary safety worker for the subject three test, and a student accompanied with the test on the vehicle completes supervision of the subject three test so as to ensure the driving safety in the test process; this increases the labor cost of the examination and also brings with it some drawbacks: in the process of the subject three-test, cheating behaviors for assisting a security officer to help step on a brake can occur, and the cheating behaviors are difficult to find and difficult to stop, so that the fairness and the fairness of the whole driving test industry are influenced.
Therefore, there is a need for a novel automatic brake mechanism for a passenger seat to overcome the above-mentioned problems of the prior art.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the automatic brake device and the automatic brake system for the copilot.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the invention relates to an automatic brake device for a copilot, which comprises: the device comprises a fixed plate, an electric push rod, a swing arm, a sliding support, a clamping mechanism and an auxiliary brake rod; the fixed plate is fixed on the floor of the copilot, the tail end of the electric push rod is rotatably arranged on the fixed plate, and the front end of the electric push rod is hinged with one end of the swing arm; the middle part of the swing arm is rotatably arranged on the fixed plate, and the other end of the swing arm is hinged with one end of the sliding support; the other end of the sliding support is provided with a sliding chute, one end of the clamping mechanism is fixedly connected with the input end of the auxiliary brake rod, and the other end of the clamping mechanism is hinged in the sliding chute in a sliding manner; the output end of the auxiliary brake rod passes through the bottom of the vehicle console and then is erected on the brake pedal arm of the main driver seat, and the input end of the auxiliary brake rod is rotatably installed on the floor of the auxiliary driver seat.
Further, the fixed plate is fixed on the floor of the copilot through a fixed bottom plate.
Furthermore, the tail end of the electric push rod is rotatably arranged on the fixing plate through a connecting bracket.
Furthermore, the connecting support is in a Z-shaped design, one end face of the connecting support is fixed on the fixing plate through a bolt, and the other end of the connecting support is hinged with the tail end of the electric push rod through a pin shaft.
Further, the fixing plate is in an L-shaped design.
Furthermore, the clamping mechanism is of a hoop structure.
Furthermore, the hoop structure comprises an upper half hoop and a lower half hoop, a connecting plate is arranged on the upper half hoop, and the connecting plate is connected in a sliding groove formed in the other end of the sliding support in a sliding mode through a pin shaft.
Further, the connecting plate is welded on the upper half hoop.
Furthermore, the auxiliary brake rod is in a Z-shaped design, the input end of the auxiliary brake rod is rotationally fixed through a fixing support, and the fixing support is fixed on the floor of an auxiliary driving position of the vehicle.
Furthermore, the center of the swing arm is provided with a through hole, and the swing arm is rotatably fixed on the fixing plate through a positioning shaft penetrating through the through hole. Wherein, the locating shaft is fixed on the fixing plate through a bolt.
In the brake device, initially, the front end of the electric push rod is in a contraction state, and the pin shaft is positioned at the end part of the other end of the sliding groove; when a radar component or a camera arranged on an examination vehicle acquires a danger signal and needs to perform braking in advance, if an examination student at a main driving position does not perform braking action, an on-board controller generates an automatic braking signal and transmits the automatic braking signal to an electric push rod; when a brake signal is received, the front section of the electric push rod stretches out and pushes one end of the swing arm to rotate forwards, meanwhile, the other end of the swing arm rotates backwards around the positioning shaft, the sliding support connected with the end is pulled to move, the hoop is pulled by the sliding support to enable the input end of the auxiliary brake rod to rotate, and finally the output end of the auxiliary brake rod pushes the brake pedal arm of the main driving seat to achieve automatic braking.
The invention discloses an automatic brake system for a copilot, which comprises the automatic brake device, a vehicle-mounted controller and a detection assembly, wherein the vehicle-mounted controller is arranged on the vehicle-mounted controller; the vehicle-mounted controller is electrically connected with the automatic brake device and the detection assembly respectively;
a detection component for detecting the distance between the vehicle and the peripheral obstacles;
and the vehicle-mounted controller is used for receiving the detection information transmitted by the detection assembly, vehicle speed information, accelerator information and main driving position brake pedal travel information transmitted by the vehicle-mounted OBD, generating a control instruction according to the received information and transmitting the control instruction to the automatic brake device, and finishing the state control of vehicle braking through the automatic brake device.
Further, the detection component comprises an ultrasonic radar arranged at the tail of the vehicle, a laser radar arranged at the top of the vehicle and/or a millimeter wave radar/camera arranged at the front of the vehicle.
Further, the system also comprises a steering wheel angle detector for detecting steering wheel angle data and transmitting the steering wheel angle data to the vehicle-mounted controller.
The vehicle-mounted controller judges whether the vehicle collides with the obstacle according to the distance between the vehicle and the obstacle in front, the rotating angle of the steering wheel and the stroke of the brake pedal of the main driving position, which are detected by the detection component; if yes, a control command is sent out to control the front section of the electric push rod to extend out, so that the brake pedal arm of the main driving position is pushed, and automatic braking is realized.
Further, the system further comprises: and the positioning component is electrically connected with the vehicle-mounted controller and supports a GPS/GLONASS/Beidou satellite positioning system.
Furthermore, the vehicle-mounted main controller is also connected with the communication assembly and used for receiving the brake control command transmitted by the far end.
The invention has the beneficial effects that:
the invention has small structure and easy installation, can be installed in the co-driver seat according to the requirements of vehicle types, is suitable for different vehicle types, occupies small space and does not influence normal driving.
The invention can judge whether the vehicle enters a dangerous area in real time, and can automatically realize braking when the vehicle is found to drive into the dangerous area, thereby effectively protecting personal safety and vehicle safety, eliminating potential safety hazards and avoiding the need of assisting the manual participation of safety personnel.
Drawings
FIG. 1 is a front view of the structure of the present invention in a free state;
FIG. 2 is a perspective view of the present invention in a free state;
FIG. 3 is a front view of the brake mechanism of the present invention;
FIG. 4 is a structural view of a swing arm in the present invention;
FIG. 5 is a block diagram of an installation of the present invention in an example;
FIG. 6 is a functional block diagram of an exemplary system;
the figure includes: 1. the brake pedal device comprises a fixing plate, 2, an electric push rod, 3, a swing arm, 31, a through hole, 4, a sliding support, 41, a sliding groove, 5, a clamping mechanism, 51, an upper half hoop, 52, a lower half hoop, 53, a connecting plate, 6, an auxiliary brake rod, 7, a fixed base plate, 8, a floor of an auxiliary driving seat, 9, a connecting support, 12, a main driving seat brake pedal arm, 13 and a positioning shaft.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
Referring to fig. 1 to 5, an automatic brake device for a passenger compartment according to the present invention is mounted in a passenger compartment of a vehicle, and includes: the device comprises a fixed plate 1, an electric push rod 2, a swing arm 3, a sliding support 4, a clamping mechanism 5 and an auxiliary brake rod 6; the fixed plate 1 is fixed on a floor 8 of a copilot position through a fixed bottom plate 7, the fixed bottom plate 7 is fixed on the floor 8 through bolts, the fixed plate 1 is in an L-shaped design, and one end face of the fixed plate is fixed with the fixed bottom plate 7 through bolts; the tail end of the electric push rod 2 is fixed on the other end face of the fixed plate 1 through a connecting support 9, the connecting support is in a Z-shaped design, one end face of the connecting support is fixed on the fixed plate 1 through a bolt, and the other end face of the connecting support is hinged with the tail end of the electric push rod 2 through a pin shaft; the front end of the electric push rod 2 is hinged with one end of the swing arm 3; the other end of the swing arm 3 is hinged with one end of the sliding support 4, and the middle part of the swing arm 3 is rotatably arranged on the fixed plate 1; the other end of the sliding support 4 is provided with a sliding chute 41, one end of the clamping mechanism 5 is fixedly connected with the input end of the auxiliary brake rod 6, and the other end of the clamping mechanism 5 is hinged in the sliding chute 41 in a sliding manner; in this example, the clamping mechanism 5 is a hoop structure, and is composed of an upper half hoop 51 and a lower half hoop 52, a connecting plate 53 is welded on the upper half hoop, and the connecting plate 53 is slidably connected in a sliding groove 41 provided at the other end of the sliding support 4 through a pin 11. The auxiliary brake rod 6 is in a Z-shaped design, the output end of the auxiliary brake rod passes through the bottom of the vehicle console and then is erected on the brake pedal arm 12 of the main driving seat, and the input end of the auxiliary brake rod is rotatably installed on the floor 8 of the auxiliary driving seat.
As shown in fig. 4, the swing arm 3 has a through hole 31 at the center, and is rotatably fixed to the fixing plate 1 through the through hole 31.
Furthermore, the input end of the auxiliary brake lever 6 is fixed in rotation by a fixing bracket (not shown) fixed to the floor 8 of the passenger compartment of the vehicle.
In the automatic brake device of the invention, at the initial time (free state), referring to fig. 1 and 2, the front end of the electric push rod is in a contraction state, and the pin shaft is positioned at the end part of the other end of the sliding chute; when a braking signal is received, the front section of the electric push rod stretches out and pushes one end of the swing arm to rotate forwards, meanwhile, the other end of the swing arm rotates backwards around the positioning shaft 13, the sliding support connected with the end is pulled to move, the hoop is pulled by the sliding support to enable the input end of the auxiliary braking rod to rotate, and finally the output end of the auxiliary braking rod pushes the main driving position brake pedal arm to achieve automatic braking, and the structure is shown in fig. 3. After braking is finished, the front section of the electric push rod returns to drive the swing arm, the sliding support and the auxiliary brake rod to return to the initial position together, and meanwhile, the brake pedal arm of the main driving position is stretched and returned by an elastic mechanism arranged in a vehicle brake system, namely the state shown in fig. 1.
The positioning shaft 13 is composed of a central shaft and a disc which are integrally designed, the disc is fixed on the fixing plate 1 through a bolt, and the central shaft penetrates through a through hole 31 of the swing arm 3 and then limits the swing arm 3 through a nut, so that the swing arm 31 can rotate around the central shaft.
The invention discloses an automatic brake system for a copilot, which comprises the automatic brake device, a vehicle-mounted controller and a detection assembly, wherein the vehicle-mounted controller is arranged on the vehicle-mounted controller; the vehicle-mounted controller is electrically connected with the automatic brake device and the detection assembly respectively;
the detection assembly is used for detecting the distance between the vehicle and a peripheral obstacle and comprises an ultrasonic radar arranged at the tail of the vehicle, a laser radar arranged at the top of the vehicle and/or a millimeter wave radar/camera arranged at the front of the vehicle;
and the vehicle-mounted controller is used for receiving the detection information transmitted by the detection assembly, and vehicle speed information, accelerator information, main driving position brake pedal travel information and steering wheel angle information transmitted by the vehicle-mounted OBD, generating a control instruction according to the received information and transmitting the control instruction to the automatic brake device, and finishing the state control of vehicle braking through the automatic brake device.
The vehicle-mounted controller judges whether the vehicle collides with the obstacle or not according to the distance between the vehicle and the surrounding obstacle, the corner of a steering wheel and the stroke of a brake pedal of a main driving position, which are detected by an ultrasonic radar arranged at the tail part of the vehicle, a laser radar arranged at the top part of the vehicle and/or a millimeter wave radar/camera arranged at the front part of the vehicle, and if so, a brake control instruction is generated; if not, the judgment is continued.
And after the vehicle-mounted controller generates a brake control instruction, the current vehicle speed is judged in real time, and if the vehicle speed is zero, the control instruction is generated to enable the front section of the electric push rod to be restored to the initial position.
In an example I, the system is applied to a common vehicle, a signal input end of a vehicle-mounted controller is connected with a vehicle-mounted OBD and used for acquiring vehicle speed information, accelerator information, main driving position brake pedal travel information and steering wheel corner information detected by a steering wheel corner detector, when the vehicle runs, a front obstacle is encountered, a millimeter wave radar in the front of the vehicle can acquire the distance between the vehicle and the obstacle in real time, the vehicle-mounted controller judges whether the vehicle collides with the obstacle according to the received accelerator information, brake pedal travel information and steering wheel corner information, and if yes, a brake control instruction is generated; if not, the judgment is continued. When the vehicle is reversed, the ultrasonic radar at the tail of the vehicle acquires the distance between the vehicle and the obstacle in real time, the vehicle-mounted controller judges whether the vehicle collides with the obstacle or not according to the received accelerator information and the brake pedal stroke information, and if so, a brake control instruction is generated; if not, the judgment is continued.
Referring to fig. 6, in a second example, the system is applied to a training vehicle for a driver of a motor vehicle, and an automatic braking device is installed at a passenger seat of the vehicle, and the system further includes: the positioning assembly is electrically connected with the vehicle-mounted controller and used for detecting the real-time specific geographic position of the vehicle, supports a GPS/GLONASS/Beidou satellite positioning system and realizes centimeter-level positioning accuracy of the vehicle by adopting a differential satellite positioning technology. The single satellite positioning antenna has a certain positioning error, in order to improve the positioning precision, the satellite positioning error ranges of the two antennas are prevented from overlapping, the error interference of the single antenna is reduced, and the distance between the two satellite positioning antennas is larger than 1 meter.
The signal input end of the vehicle-mounted controller is connected with a vehicle-mounted OBD and is used for acquiring vehicle speed information, accelerator information, brake pedal travel information and steering wheel corner information acquired by a steering wheel corner detector; when a student takes an examination while driving a vehicle, the front part of the student meets an obstacle, a millimeter wave radar at the front part of the vehicle can acquire the distance between the vehicle and the obstacle in real time, and the vehicle-mounted controller judges whether the vehicle collides with the obstacle or not according to the received accelerator information, brake pedal travel information and steering wheel corner information, and generates a brake control instruction if the vehicle collides with the obstacle; if not, the judgment is continued.
The vehicle-mounted controller is also connected with a communication component and can receive a brake control command transmitted by a remote end; when an emergency happens, a security officer or a remote monitoring center outside the vehicle can send out an emergency brake control instruction to stop the vehicle.
All parts in the system supply power by being connected with an external power supply, and a rechargeable lithium battery pack is selected and installed in a vehicle trunk. It can be connected to a vehicle power supply that charges it when the vehicle is operating.
While embodiments of the present invention have been described above, the present invention is not limited to the specific embodiments and applications described above, which are intended to be illustrative, instructive, and not limiting. Those skilled in the art, having the benefit of this disclosure, may effect numerous modifications thereto without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. An automatic brake device for a passenger seat, comprising: the device comprises a fixed plate, an electric push rod, a swing arm, a sliding support, a clamping mechanism and an auxiliary brake rod; the fixed plate is fixed on the floor of the copilot, the tail end of the electric push rod is rotatably arranged on the fixed plate, and the front end of the electric push rod is hinged with one end of the swing arm; the middle part of the swing arm is rotatably arranged on the fixed plate, and the other end of the swing arm is hinged with one end of the sliding support; the other end of the sliding support is provided with a sliding chute, one end of the clamping mechanism is fixedly connected with the input end of the auxiliary brake rod, and the other end of the clamping mechanism is hinged in the sliding chute in a sliding manner; the output end of the auxiliary brake rod passes through the bottom of the vehicle console and then is erected on the brake pedal arm of the main driver seat, and the input end of the auxiliary brake rod is rotatably installed on the floor of the auxiliary driver seat.
2. The automatic brake apparatus for a passenger seat according to claim 1, wherein the fixing plate is fixed to a floor of the passenger seat by a fixing base plate.
3. The automatic brake device for the passenger seat according to claim 2, wherein the rear end of the electric push rod is rotatably mounted on the fixed plate through a connecting bracket.
4. The automatic brake device for the copilot according to claim 3, wherein the connecting bracket is Z-shaped, one end surface of the connecting bracket is fixed on the fixing plate through a bolt, and the other end of the connecting bracket is hinged with the tail end of the electric push rod through a pin shaft.
5. The automatic brake device for copilot as claimed in claim 1, wherein the clamping mechanism is a hoop structure.
6. The automatic brake device for copilot seat as claimed in claim 5, wherein the hoop structure comprises an upper hoop and a lower hoop, and the upper hoop is provided with a connecting plate which is slidably connected to a sliding slot at the other end of the sliding support through a pin.
7. A copilot automatic braking system, characterized by comprising the automatic braking device according to any one of claims 1 to 6, and an onboard controller, detection assembly; the vehicle-mounted controller is electrically connected with the automatic brake device and the detection assembly respectively;
a detection component for detecting the distance between the vehicle and the peripheral obstacles;
and the vehicle-mounted controller is used for receiving the detection information transmitted by the detection assembly, vehicle speed information, accelerator information and main driving position brake pedal travel information transmitted by the vehicle-mounted OBD, generating a control instruction according to the received information and transmitting the control instruction to the automatic brake device, and finishing the state control of vehicle braking through the automatic brake device.
8. The system of claim 7, wherein the detection assembly comprises an ultrasonic radar mounted at the rear of the vehicle and a lidar mounted at the top of the vehicle and/or a millimeter wave radar/camera mounted at the front of the vehicle.
9. The copilot automatic brake system of claim 7, further comprising a steering wheel angle detector for detecting steering wheel angle data and transmitting to the onboard controller.
10. The automatic brake system for the copilot seat according to claim 9, wherein the vehicle-mounted controller judges whether the vehicle collides with the obstacle according to the distance between the vehicle and the obstacle in front, the rotation angle of the steering wheel and the stroke of the brake pedal of the main seat, which are detected by the detection component; if yes, a control command is sent out to control the front section of the electric push rod to extend out, so that the brake pedal arm of the main driving position is pushed, and automatic braking is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911224927.2A CN110877604A (en) | 2019-12-04 | 2019-12-04 | Automatic brake device and system for copilot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911224927.2A CN110877604A (en) | 2019-12-04 | 2019-12-04 | Automatic brake device and system for copilot |
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| Publication Number | Publication Date |
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| CN110877604A true CN110877604A (en) | 2020-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911224927.2A Pending CN110877604A (en) | 2019-12-04 | 2019-12-04 | Automatic brake device and system for copilot |
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| CN (1) | CN110877604A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112776771A (en) * | 2021-01-22 | 2021-05-11 | 武汉木仓科技股份有限公司 | Electric brake device of automobile and automobile |
| CN112829728A (en) * | 2021-01-22 | 2021-05-25 | 武汉木仓科技股份有限公司 | Electric brake device of automobile and automobile |
| CN113985417A (en) * | 2021-09-18 | 2022-01-28 | 武汉未来幻影科技有限公司 | Method and device for detecting vehicle by winding for one circle |
| CN116001746A (en) * | 2022-12-22 | 2023-04-25 | 北京百度网讯科技有限公司 | Autonomous vehicle with redundant braking system |
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| CN211166844U (en) * | 2019-12-04 | 2020-08-04 | 多伦科技股份有限公司 | Automatic brake device for copilot |
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| JPH0939600A (en) * | 1995-07-31 | 1997-02-10 | Matsuda Sangyo Kk | Vehicle for handicapped person |
| KR20010056133A (en) * | 1999-12-14 | 2001-07-04 | 김명한 | Pedal assemble of vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112776771A (en) * | 2021-01-22 | 2021-05-11 | 武汉木仓科技股份有限公司 | Electric brake device of automobile and automobile |
| CN112829728A (en) * | 2021-01-22 | 2021-05-25 | 武汉木仓科技股份有限公司 | Electric brake device of automobile and automobile |
| CN113985417A (en) * | 2021-09-18 | 2022-01-28 | 武汉未来幻影科技有限公司 | Method and device for detecting vehicle by winding for one circle |
| CN116001746A (en) * | 2022-12-22 | 2023-04-25 | 北京百度网讯科技有限公司 | Autonomous vehicle with redundant braking system |
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