CN114387845A - Driving simulation system applied to drive-by-wire chassis test and evaluation - Google Patents
Driving simulation system applied to drive-by-wire chassis test and evaluation Download PDFInfo
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- CN114387845A CN114387845A CN202210128099.8A CN202210128099A CN114387845A CN 114387845 A CN114387845 A CN 114387845A CN 202210128099 A CN202210128099 A CN 202210128099A CN 114387845 A CN114387845 A CN 114387845A
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- steering
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
- G09B9/02—Simulators for teaching or training purposes for teaching control of vehicles or other craft
- G09B9/04—Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of land vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention relates to the technical field of driving teaching, in particular to a driving simulation system applied to the test and evaluation of a drive-by-wire chassis, which comprises a driving simulation module, a brake-by-wire test module and a steering-by-wire test module; the driving simulation module comprises a driving cabin, wherein a braking servo system with a braking motion sensing motor and a high-precision steering system with a steering motion sensing motor are arranged in the driving cabin, and the braking servo system and the high-precision steering system are used for performing behavior input on braking and steering by a driver and providing pedal force feedback and steering force feedback; the brake-by-wire test module can execute automatic input, supporting force or displacement input of driver behaviors, and a sensor system is arranged in the brake-by-wire test module to objectively evaluate a brake system. The invention develops a set of high-precision pedal force feedback system and steering force feedback system for a driving simulation module, which can carry out real-time data recharging on the test results of parts and components, and is convenient for the driver to carry out subjective evaluation.
Description
Technical Field
The invention relates to the technical field of driving teaching, in particular to a driving simulation system applied to drive-by-wire chassis test and evaluation.
Background
At present, laboratory-level line control chassis test and evaluation products are divided into two types, one is hardware-in-loop equipment which can only carry out subjective evaluation, and the other is test equipment which can realize observable test according to functional specifications. The two devices can respectively provide different testing and evaluating systems for the testing of the wire control chassis, but after the objective testing and the main pipe evaluating are cut apart, a comprehensive testing and evaluating system for the wire control chassis product is difficult to form. The invention mainly aims to solve the problem that the evaluation and the objective test of a drive-by-wire chassis can be completed.
Disclosure of Invention
The invention aims to provide a driving simulation system applied to the test and evaluation of a drive-by-wire chassis, so as to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: a driving simulation system applied to the test and evaluation of a drive-by-wire chassis comprises a driving simulation module, a drive-by-wire brake test module and a drive-by-wire steering test module;
the driving simulation module comprises a driving cabin, wherein a braking servo system with a braking motion sensing motor and a high-precision steering system with a steering motion sensing motor are arranged in the driving cabin, and the braking servo system and the high-precision steering system are used for performing behavior input on braking and steering by a driver and providing pedal force feedback and steering force feedback;
the brake-by-wire test module can execute automatic input, supporting force or displacement input of driver behaviors, and a sensor system is arranged in the brake-by-wire test module to objectively evaluate a brake system;
the steer-by-wire test module can execute automatic input, supporting force or displacement input of driver behaviors, is internally provided with a corner or torque sensor and can objectively evaluate a steering system.
Preferably, the brake-by-wire test module comprises a pedal force sensor and a current sensor, the pedal force sensor acts on the braking force input unit and the brake pedal, the current sensor acts on the brake booster, the brake booster acts on the brake pedal, and the brake booster acts on the brake master cylinder.
Preferably, the master cylinder acts on the esp (abs) system.
Preferably, the esp (abs) system acts on the FL brake, FR brake, RL brake and RR brake.
Preferably, the steer-by-wire test module comprises a servo motor driver, a signal acquisition board card, a steering test input motor, a steering test input reducer, an input shaft torque and angle sensor and an EPS (electric power storage) tested piece, wherein the steering test input reducer is connected with the steering test input reducer, the steering test input reducer transmits an angle driving signal to the servo motor driver, and the servo motor driver is used for transmitting the angle signal to the signal acquisition board card.
Preferably, the input shaft torque and angle sensor is used for sensing torque and angle signals of the steering test input speed reducer and transmitting the torque and angle signals to the signal acquisition board card.
Preferably, the EPS to-be-tested piece is used for receiving a power signal of a steering test input speed reducer, and the steering test input speed reducer acts on a steering load electric cylinder.
Preferably, the power input end of the steering load electric cylinder is further provided with an output shaft force and displacement sensor, and the steering load electric cylinder is electrically connected with the load electric cylinder driver.
Preferably, the signal acquisition card is used for transmitting the acquired rotation angle signal and the acquired torque signal to the driving simulator module.
Preferably, the pedal force sensor transmits a braking force signal collected by the braking force input unit to the driving simulation module, and the current sensor transmits the assistance data of the brake booster to the driving simulation module.
Compared with the prior art, the invention has the beneficial effects that:
the invention develops a set of high-precision pedal force feedback system and steering force feedback system for a driving simulation module, which can carry out real-time data recharging on the test results of parts and components, and is convenient for the driver to carry out subjective evaluation.
The invention has high integration level, and the driving simulation system can integrate the part test and the subjective evaluation test, thereby improving the development efficiency.
The invention coordinates and integrates the subjective evaluation system and the objective evaluation system of the drive-by-wire chassis parts through the driving simulation system software, and can realize a complete test and evaluation system for the drive-by-wire chassis products.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a diagram of a software architecture in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by workers skilled in the art without any inventive work based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 to 2, the present invention provides a technical solution: a driving simulation system applied to the test and evaluation of a drive-by-wire chassis comprises a driving simulation module, a drive-by-wire brake test module and a drive-by-wire steering test module;
the driving simulation module comprises a driving cabin, wherein a braking servo system with a braking motion sensing motor and a high-precision steering system with a steering motion sensing motor are arranged in the driving cabin, and the braking servo system and the high-precision steering system are used for performing behavior input on braking and steering by a driver and providing pedal force feedback and steering force feedback;
the brake-by-wire test module can execute automatic input, supporting force or displacement input of driver behaviors, and a sensor system is arranged in the brake-by-wire test module to objectively evaluate a brake system;
the steer-by-wire test module can execute automatic input, supporting force or displacement input of driver behaviors, is internally provided with a corner or torque sensor and can objectively evaluate a steering system.
In this embodiment, the brake-by-wire test module includes a pedal force sensor and a current sensor, the pedal force sensor acts on the braking force input unit and the brake pedal, the current sensor acts on the brake booster, the brake booster acts on the brake pedal, and the brake booster acts on the brake master cylinder.
In this embodiment, the master cylinder acts on the esp (abs) system.
In the present embodiment, the esp (abs) system acts on the FL brake, FR brake, RL brake, and RR brake.
In this embodiment, the steer-by-wire test module includes a servo motor driver, a signal acquisition board, a steer test input motor, a steer test input reducer, an input shaft torque and angle sensor, and an EPS tested piece, where the steer test input reducer is connected to the steer test input reducer, the steer test input reducer transmits an angle drive signal to the servo motor driver, and the servo motor driver is configured to transmit the angle signal to the signal acquisition board.
In this embodiment, the input shaft torque and angle sensor is used for sensing a torque and angle signal of the steering test input speed reducer and transmitting the torque and angle signal to the signal acquisition board card.
In this embodiment, the EPS is used for receiving the power signal of the steering test input speed reducer, and the steering test input speed reducer acts on the steering load electric cylinder.
In this embodiment, the power input end of the steering load electric cylinder is further provided with an output shaft force and displacement sensor, and the steering load electric cylinder is electrically connected with the load electric cylinder driver.
In this embodiment, the signal acquisition card is used for transmitting the acquired corner signal and torque signal to the driving simulator module.
In this embodiment, the pedal force sensor transmits the braking force signal collected by the braking force input unit to the driving simulation module, and the current sensor transmits the assistance data of the brake booster to the driving simulation module.
As shown in fig. 1, the driving simulation system includes a driving simulation module, a brake-by-wire test module, and a steer-by-wire test module. The driving simulation module is provided with a physical driving cabin, a driver can input behaviors for braking and steering, a high-precision steering and braking servo system is arranged in the driving simulation module, and pedal force feedback and steering force feedback can be provided. The brake-by-wire test module can execute automatic input of driver behaviors, support force or displacement input, and can be internally provided with displacement, pressure and other sensor systems to objectively evaluate a brake system. The steer-by-wire test module can execute the automatic input of the driver behavior, the input of the supporting force or displacement, and the built-in sensors of the turning angle or the torque and the like, and can objectively evaluate the steering system.
The driving simulation system has two working modes, namely a test evaluation mode mainly based on driver input; one is a test evaluation mode mainly based on an automated test. When a test mode mainly based on driver input is used, a driver can carry out behavior input on a steering and braking system according to a scene, the test system can resolve driving behaviors into automatic test input information of a brake-by-wire and steering-by-wire test module according to driver input information, so that the tested braking and steering system performance can be tested by using a test bench, and meanwhile, the steering feeling and the brake pedal feeling can be subjectively evaluated by the driver through a high-precision steering and braking servo system.
When a test mode which mainly adopts automatic test is used, the brake-by-wire or steering-by-wire test module can carry out automatic test according to preset functional specifications and test cases, at the moment, mechanical feedback signals such as pedal force signals and steering hand force signals can be fed back to the driving simulation module, and a driver can operate the driving simulation module to carry out subjective evaluation on the performance of the steering chassis.
As shown in fig. 2, the system is divided into a human (driver), an automatic test system, a component performance test system, and an environmental system from left to right. The human can determine the driving input behavior through the interaction of eyes and environment, can generate brake pedal force and displacement signals through the interaction of feet and a foot sensing motor, and can generate steering force and corner signals through hands and a road sensing motor. The automatic test system can control the brake execution electric cylinder and the steering motor to realize the automatic input of pedal force, pedal displacement, steering torque and steering angle. The part test is that the tested object can contain all parts related to the drive-by-wire chassis including brake-by-wire parts and steering-by-wire parts. The environment is roads, vehicles and pedestrians provided by the scene model. Under the coordination of test management software, the automatic test system, the vehicle parts and the environment can realize automatic objective evaluation test according to test cases such as regulatory standards and the like.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A driving simulation system applied to drive-by-wire chassis test and evaluation is characterized in that: the system comprises a driving simulation module, a brake-by-wire test module and a steering-by-wire test module;
the driving simulation module comprises a driving cabin, wherein a braking servo system with a braking motion sensing motor and a high-precision steering system with a steering motion sensing motor are arranged in the driving cabin, and the braking servo system and the high-precision steering system are used for performing behavior input on braking and steering by a driver and providing pedal force feedback and steering force feedback;
the brake-by-wire test module can execute automatic input, supporting force or displacement input of driver behaviors, and a sensor system is arranged in the brake-by-wire test module to objectively evaluate a brake system;
the steer-by-wire test module can execute automatic input, supporting force or displacement input of driver behaviors, is internally provided with a corner or torque sensor and can objectively evaluate a steering system.
2. The driving simulation system applied to chassis-by-wire test and evaluation according to claim 1, wherein: the brake-by-wire test module comprises a pedal force sensor and a current sensor, wherein the pedal force sensor acts on the braking force input unit and the brake pedal, the current sensor acts on the brake booster, the brake booster acts on the brake pedal, and the brake booster acts on the brake master cylinder.
3. The driving simulation system applied to chassis-by-wire test and evaluation according to claim 2, wherein: the master cylinder acts on the esp (abs) system.
4. The driving simulation system applied to chassis-by-wire test and evaluation according to claim 3, wherein: the ESP (ABS) system acts on the FL brake, the FR brake, the RL brake, and the RR brake.
5. The driving simulation system applied to chassis-by-wire test and evaluation according to claim 1, wherein: the steer-by-wire test module comprises a servo motor driver, a signal acquisition board card, a steering test input motor, a steering test input speed reducer, an input shaft torque and corner sensor and an EPS (expandable polystyrene) tested piece, wherein the steering test input speed reducer is connected with the steering test input speed reducer, the steering test input speed reducer transmits a corner driving signal to the servo motor driver, and the servo motor driver is used for transmitting the corner signal to the signal acquisition board card.
6. The driving simulation system applied to chassis-by-wire test and evaluation according to claim 5, wherein: the input shaft torque and corner sensor is used for sensing torque and corner signals of the steering test input speed reducer and transmitting the torque and corner signals to the signal acquisition board card.
7. The driving simulation system applied to chassis-by-wire test and evaluation according to claim 5, wherein: the EPS is used for receiving the power signal of the steering test input speed reducer, and the steering test input speed reducer acts on the steering load electric cylinder.
8. The driving simulation system applied to chassis-by-wire test and evaluation according to claim 7, wherein: the power input end of the steering load electric cylinder is also provided with an output shaft force and displacement sensor, and the steering load electric cylinder is electrically connected with the load electric cylinder driver.
9. The driving simulation system applied to chassis-by-wire test and evaluation according to claim 5, wherein: the signal acquisition card is used for transmitting the acquired corner signal and the torque signal to the driving simulator module.
10. The driving simulation system applied to chassis-by-wire test and evaluation according to claim 5, wherein: the pedal force sensor transmits a braking force signal acquired by the braking force input unit to the driving simulation module, and the current sensor transmits the assistance data of the brake booster to the driving simulation module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210128099.8A CN114387845A (en) | 2022-02-11 | 2022-02-11 | Driving simulation system applied to drive-by-wire chassis test and evaluation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210128099.8A CN114387845A (en) | 2022-02-11 | 2022-02-11 | Driving simulation system applied to drive-by-wire chassis test and evaluation |
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| CN114387845A true CN114387845A (en) | 2022-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210128099.8A Withdrawn CN114387845A (en) | 2022-02-11 | 2022-02-11 | Driving simulation system applied to drive-by-wire chassis test and evaluation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115294829A (en) * | 2022-07-29 | 2022-11-04 | 北京电子科技职业学院 | Motor vehicle driving teaching system based on drive-by-wire chassis |
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2022
- 2022-02-11 CN CN202210128099.8A patent/CN114387845A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115294829A (en) * | 2022-07-29 | 2022-11-04 | 北京电子科技职业学院 | Motor vehicle driving teaching system based on drive-by-wire chassis |
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Application publication date: 20220422 |