CN212621476U - Drive-by-wire chassis test bench - Google Patents
Drive-by-wire chassis test bench Download PDFInfo
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- CN212621476U CN212621476U CN202020392423.3U CN202020392423U CN212621476U CN 212621476 U CN212621476 U CN 212621476U CN 202020392423 U CN202020392423 U CN 202020392423U CN 212621476 U CN212621476 U CN 212621476U
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Abstract
The utility model discloses a drive-by-wire chassis test bench, include: the support is an integral frame structural member of the drive-by-wire chassis test bench, the steering wheel, the steering system, the brake output device and the brake system are fixed on the support, the steering wheel is connected with the input end of the steering system, the steering system is connected with the center console, the brake system is connected with the center console, and the operation input device and the display are in electrical signal connection with the center console. The system can realize the unified, comprehensive and efficient detection of the control algorithm and the function detection of the intelligent drive-by-wire chassis.
Description
Technical Field
The utility model relates to a drive-by-wire chassis test bench, concretely relates to possess drive-by-wire steering and drive-by-wire brake control algorithm verify with functional test's drive-by-wire chassis test bench.
Background
The intelligent drive-by-wire chassis technology is an important assembly part in future unmanned technology, and the core technology of the drive-by-wire chassis focuses on the intelligent drive-by-wire steering technology and the drive-by-wire brake technology. At present, because the wire-controlled brake and the wire-controlled steering products are relatively immature, corresponding test detection equipment is not available in the market, so that most of the current detection is still based on simulation and real vehicle or single-function product detection, and the test detection of the whole set of wire-controlled chassis system cannot be quickly and effectively finished.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a drive-by-wire chassis test bench to the realization is detected the control algorithm and the function on intelligent drive-by-wire chassis and is carried out comprehensive efficient detection in unison.
The method comprises the following steps: a bracket, a steering wheel, a steering system, a braking system, a center console, an operation input device and a display,
the support is an integral frame structural member of the drive-by-wire chassis test bench, a steering wheel, a steering system, a braking system, a center console, an operation input device and a display are all fixed on the support, the steering wheel is connected with the input end of the steering system, the steering system is connected with the center console, the braking system is connected with the center console, and the operation input device and the display are in electric signal connection with the center console and used for man-machine interaction interface display and command input.
More preferably, the braking system comprises a brake pedal, a brake and a disc brake, wherein the brake pedal is connected with the brake, and the brake is connected with the disc brake.
More preferably, the steering system comprises a steering shaft, a first steering gear, a second steering gear, a torque sensor, an angle sensor and a steering pull rod, wherein the first steering gear is positioned at the upper end of the steering shaft, the second steering gear is positioned at the lower end of the steering shaft, the torque sensor is positioned at the joint of a steering wheel and the steering shaft, the angle sensor is positioned at the joint of the second steering gear and the steering pull rod, and the first steering gear, the second steering gear, the torque sensor and the angle sensor are in electric signal connection with the central console.
More preferably, the brake system further comprises a brake output device, and the brake output device is connected with the brake pedal.
More preferably, the brake output device comprises a first base, a first motor, a first controller and a first connecting piece,
the first base is fixed on the support, the first motor is fixed on the first base, the first controller is in electrical signal connection with the first motor, an output shaft of the first motor is connected with the first connecting piece, the first connecting piece is connected with the brake pedal, and the first controller is in electrical signal connection with the central console.
More preferably, the steering resistance simulator is further included, and the steering resistance simulator is connected with the steering pull rod and is in electrical signal connection with the center console.
More preferably, the steering resistance simulator comprises a second base, a second motor, a second controller and a second connecting piece,
the second base is fixed on the support, the second motor is fixed on the second base, the second controller is in electrical signal connection with the second motor, an output shaft of the second motor is connected with the second connecting piece, and the second connecting piece is connected with the steering pull rod.
More preferably, the brake includes a mechanical actuator and an electric actuator, and the mechanical actuator and the electric actuator are relatively independent and can respectively and independently complete the braking action of the brake.
Drawings
FIG. 1 is a schematic view of a test bench for a drive-by-wire chassis
FIG. 2 mechanical structure diagram of drive-by-wire chassis testing bench
FIG. 3 Structure of steering System
FIG. 4 brake system architecture
FIG. 5 shows a structure of a brake output device
FIG. 6 is a block diagram of a steering resistance simulator
Detailed Description
The utility model discloses carry out drive-by-wire chassis test bench detailed description below with the accompanying drawing.
Fig. 1 is a schematic structural diagram of a chassis-by-wire test bench, fig. 2 is a mechanical structural diagram of the chassis-by-wire test bench, and the chassis-by-wire comprises: the control system comprises a support 100, a steering wheel 200, a steering system 300, a brake output device 400, a brake system 500, a center console 600, an operation input device 700 and a display 800.
Wherein the steering wheel 200, the steering system 300, the brake output device 400, the brake system 500, the center console 600, the operation input device 700 and the display 800 are all fixed on the bracket 100,
fig. 3 is a structure view of a steering system, which includes a steering shaft 310, a first steering gear 320, a second steering gear 340, a torque sensor 330, an angle sensor 350 and a steering rod 360, wherein the first steering gear 320 is located at an upper end of the steering shaft 310, the second steering gear 340 is located at a lower end of the steering shaft 310, the torque sensor 330 is located at a connection position of the steering wheel 200 and the steering shaft 310, the angle sensor 350 is located at a connection position of the second steering gear 340 and the steering rod 360, and the first steering gear 320, the second steering gear 340, the torque sensor 330 and the angle sensor 350 are electrically connected to a console 600.
Fig. 4 is a structure diagram of a brake system, which includes a brake pedal 510, a brake 520, and a disc brake 530, wherein the brake pedal 510 is connected to the brake 520, the brake 520 is connected to the disc brake 530 through an oil pipe, so that the brake 520 controls the disc brake 530 through an oil pressure manner, wherein the brake 520 can be further manufactured as a double-brake scheme, i.e., mechanical pedal type mechanical braking or electric braking by using an electric signal, and the double-brake scheme can adopt two sets of independent control devices and separate connection with an execution device, thereby realizing independent braking effects.
The specific operation steps of the drive-by-wire chassis test bench are as follows:
A. when the drive-by-wire chassis test bench works, firstly, a tester connects a chassis controller to be tested with a corresponding interface of the central control console 600, performs test parameter setting by operating the input device 700, and starts the drive-by-wire chassis test bench.
B. Chassis controller brake control test:
a first pressure sensor 521 may be provided at the output end of the brake 520, a second pressure sensor 531 may be provided on the disc brake 530, and the first pressure sensor 521 and the second pressure sensor 531 are connected to the console 600
Firstly, a mechanical braking function test is carried out, a tester presses the pedal 510 to enable the brake 520 to apply braking force on the disc brake 530 so as to complete the detection of the mechanical braking function,
then, a brake-by-wire function test is performed, and by operating a brake command input from the input device 700, the center console 600 transmits a control signal to the brake 520, and the brake 520 receives the brake signal and applies a braking force to the disc brake 530, thereby completing the detection of the brake-by-wire function.
The first pressure sensor 521 and the second pressure sensor 531 transmit the pressure signal output by the brake 520 and the pressure signal output by the disc brake 530 to the console 600, and the console 600 displays the pressure signals on the display 800.
C. Chassis controller steering control test:
firstly, the steering wheel 200 is used for manual steering operation, at the moment, the steering shaft 310 rotates along with the steering shaft, the torque sensor 330 transmits a steering force signal to the center console 600 and the chassis controller to be tested, and the chassis controller to be tested controls the first steering device 320 to control the steering pull rod 360 to complete steering according to the torque signal.
Then, by operating the input device 700, a steering operation command is input to specify a steering angle, and the second steering gear 340 controls the steering rod 360 to complete steering according to the command.
The angle sensor 350 detects a steering angle of the steering system 300, one of which completes closed-loop control of the steering system, and transmits steering information to the console 600, and the console 600 displays key information on the display screen 800, wherein the specific display information includes: and data information such as a turning angle, a steering force, a steering return and the like.
In order to save the operator from frequently depressing the brake pedal 510, a brake output device 400 may also be provided for simulating the driver depressing the brake pedal 510. Fig. 5 is a structural view of a brake output device, which includes a first base 410, a first motor 420, a first controller 430 and a first connector 440,
the first base 410 is fixed on the bracket 100, the first motor 420 is fixed on the first base 410, the first controller 430 is in electrical signal connection with the first motor 420, the output shaft of the first motor 420 is connected with the first connector 440,
the first connecting member 440 is connected to the brake pedal 510, where it is directly fixed by means of bolts.
In order to better simulate the real vehicle drive test effect, the steering resistance simulator 900 can be added in the scheme. Fig. 6 is a structural diagram of a steering resistance simulator, which includes a second base 910, a second motor 920, a second controller 930 and a second connecting member 940, wherein the second base 910 is fixed on the bracket 100, the second motor 920 is fixed on the second base 910, the second controller 930 is electrically connected to the second motor 920, an output shaft of the second motor 920 is connected to the second connecting member 940, and the second connecting member 940 is connected to the steering linkage 360. The frictional resistance of the real vehicle in road steering is further simulated by the steering resistance simulator 900.
Claims (8)
1. Drive-by-wire chassis test bench, its characterized in that includes: a bracket, a steering wheel, a steering system, a braking system, a center console, an operation input device and a display,
the bracket is an integral frame structural member of the drive-by-wire chassis test bench, the steering wheel, the steering system, the braking system, the center console, the operation input device and the display are all fixed on the bracket,
the steering wheel is connected with the input end of a steering system, the steering system is connected with a center console,
the brake system is connected with the center console,
the operation input device and the display are in electric signal connection with the center console and are used for interface display and command input of man-machine interaction.
2. The chassis-by-wire test rig of claim 1, wherein the braking system comprises a brake pedal, a brake, a disc brake,
the brake pedal is connected with the brake, and the brake is connected with the disc brake.
3. The chassis-by-wire test bench of claim 2, wherein the steering system comprises a steering shaft, a first steering gear, a second steering gear, a torque sensor, an angle sensor and a steering rod,
the first steering gear is positioned at the upper end of the steering shaft, the second steering gear is positioned at the lower end of the steering shaft,
the torque sensor is positioned at the joint of the steering wheel and the steering shaft, the angle sensor is positioned at the joint of the second steering gear and the steering pull rod,
the first steering gear, the second steering gear, the torque sensor and the angle sensor are in electrical signal connection with the center console.
4. The chassis-by-wire test rig of claim 3, further comprising a brake output device,
the brake output device is connected with the brake pedal.
5. The chassis-by-wire test bench of claim 4, wherein the brake output device comprises a first base, a first motor, a first controller, and a first connector,
the first base is fixed on the bracket, the first motor is fixed on the first base, the first controller is connected with the first motor through electric signals, the output shaft of the first motor is connected with the first connecting piece,
the first connecting piece is connected with the brake pedal,
the first controller is in electric signal connection with the center console.
6. The drive-by-wire chassis test rig according to any one of claims 1-5, further comprising a steering resistance simulator, the steering resistance simulator being connected to the steering linkage and to the central console in electrical signal communication.
7. The chassis-by-wire test rig of claim 6, wherein the steering resistance simulator comprises a second base, a second motor, a second controller, and a second connector,
the second base is fixed on the bracket, the second motor is fixed on the second base, the second controller is in electric signal connection with the second motor, the output shaft of the second motor is connected with the second connecting piece,
the second connecting piece is connected with the steering pull rod.
8. The chassis-by-wire test rack of any one of claims 2-5, wherein the brake comprises a mechanical actuator and an electric actuator, the mechanical actuator and the electric actuator being independent of each other and capable of independently performing the braking action of the brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020392423.3U CN212621476U (en) | 2020-03-25 | 2020-03-25 | Drive-by-wire chassis test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020392423.3U CN212621476U (en) | 2020-03-25 | 2020-03-25 | Drive-by-wire chassis test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212621476U true CN212621476U (en) | 2021-02-26 |
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ID=74708939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020392423.3U Active CN212621476U (en) | 2020-03-25 | 2020-03-25 | Drive-by-wire chassis test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212621476U (en) |
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2020
- 2020-03-25 CN CN202020392423.3U patent/CN212621476U/en active Active
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Address after: Room 1110-b, 11 / F, building 5, 2266 Taiyang Road, high speed rail new town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Qingzhi automobile technology (Suzhou) Co.,Ltd. Address before: No.15-306, Hongcheng Road, Huaming hi tech Industrial Zone, Dongli District, Tianjin Patentee before: TIANJIN TSINTEL TECHNOLOGY Co.,Ltd. |