CN213632694U - Steering simulation rack for detecting comprehensive performance of automobile EPS system - Google Patents
Steering simulation rack for detecting comprehensive performance of automobile EPS system Download PDFInfo
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- CN213632694U CN213632694U CN202022969116.XU CN202022969116U CN213632694U CN 213632694 U CN213632694 U CN 213632694U CN 202022969116 U CN202022969116 U CN 202022969116U CN 213632694 U CN213632694 U CN 213632694U
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Abstract
The utility model provides a steering simulation rack for detecting the comprehensive performance of an automobile EPS system, which adopts as many real automobile accessories as possible to highly restore the real automobile state, thereby leading the detected performance data to be closer to the real automobile result; steering systems of different projects and different types of steering systems can be realized by replacing the pipe column mounting clamp and the steering machine mounting clamp; the system is powered by the storage battery, and the acquisition software sends corresponding messages to conveniently realize the required working condition loading; the platform frame cancels irrelevant complex accessories on the actual vehicle, realizes the simulation of the front axle load by using the counterweight iron block, has simple and compact structure, is easy to operate, and greatly improves the detection efficiency.
Description
Technical Field
The utility model relates to a turn to simulation rack for car EPS system comprehensive properties detects belongs to car electric power steering system test development technical field.
Background
The function of a steering system of a vehicle is to control the driving direction of the vehicle according to the intention of a driver, and the steering system is not only the most essential component of the vehicle, but also the core safety component of the vehicle, and the steering stability and the driving safety of the vehicle are determined by the steering system. As well known, there are a mechanical steering system and a power steering system, if they are distinguished by a steering power source. The steering energy of the former is provided by the physical power (hand power) of a driver, so that the output steering torque is relatively small, the steering operation difficulty is high, the steering effort is hard, the portability and the comfort of the automobile operation are not met, and the steering energy is basically eliminated. The power steering system solves the defects well, a set of power steering device is additionally arranged on the basis of the mechanical steering system, and most of steering energy is provided by the power steering device. The power assisting device mainly comprises a hydraulic power assisting system, an electric control hydraulic power assisting system and an electric power steering system. However, the hydraulic power assistance has the problems of high fuel consumption of an engine, aggravated environmental pollution, poor working performance in a low-temperature environment and the like, and is basically replaced by an electric power steering system at present. Therefore, the development of the EPS system becomes a hot spot of research in the national turning industry for nearly ten years.
The comprehensive detection of the performance of each part of the EPS system is an important link for the development of the electric power steering system of the automobile. How to carry out comprehensive detection on the performance of the EPS system and evaluation on a control strategy on a bench of a laboratory is a problem needing to be intensively researched. The convenient loading form, the high reduction of the bench environment of the real vehicle and the stable signal acquisition are important difficulties which need to be solved urgently by the performance detection device of the electric power steering system.
At present, most of EPS (Electronic Power Steering) system performance detection devices developed and completed in China can only be tested for C-EPS (pipe column type electric Power Steering). With the development of steering technology, the comprehensive performance detection of the P-EPS (pinion type electric power steering system) and the R-EPS (rack type electric power steering system) is also urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, overcome prior art's shortcoming, provide a turn to simulation platform frame for car EPS system comprehensive properties detects, can realize that car EPS system detects each item steering behavior and highly restore the real car environment under the parking state to can cover multiple type steering system's simulation test.
In order to solve the technical problem, the utility model provides a steering simulation rack for detecting comprehensive performance of an automobile EPS system, which comprises a rack part and a measurement and control system part, wherein the rack part comprises a transverse pipe beam, a pipe column mounting fixture, a steering wheel, a working table surface, a pipe beam locking mechanism, a steering pipe column, a steering intermediate shaft, a wheel hub, a vertical pipe beam, a front shaft shock absorber, a tire, a steering knuckle, a road surface simulation plate, a steering machine mounting fixture, a counterweight iron block, a system mounting fixture, a lower swing arm, a base and a brake disc; the simulation bench test and control system part comprises a steering wheel, a torque sensor, an electronic control unit, a motor, a storage battery, a collection card and collection software;
the transverse tubular beam and the vertical tubular beam are fixed through a tubular beam locking mechanism, a tubular column mounting clamp is fixed on the transverse tubular beam, and the clamp can adjust the mounting angle of the steering tubular column according to the real vehicle state so as to restore the real vehicle carrying environment; the input end of the steering column is connected with a steering wheel, the output end of the steering column is connected with the input end of a steering intermediate shaft, the output end of the steering intermediate shaft is connected with a steering engine, the steering engine is installed on a steering engine installation clamp, the steering engine installation clamp is fixed on a system installation clamp, and the steering engine installation clamp is adjusted to restore the carrying environment of the real vehicle; the steering engine is connected with the steering knuckles at two ends, the steering knuckles connect the front axle shock absorber, the lower swing arm and the brake disc together, the brake disc is connected with the wheel hub, the wheel hub is connected with the tire, the tire is in contact with the road surface simulation plate, the simulation of different working conditions is realized by replacing different road surface simulation plates, and the front axle load is adjusted by increasing or decreasing the counterweight iron blocks to carry on the environment with the reduction real vehicle.
Furthermore, the rack part is fixed on the base, and the joint of the base and the ground adopts rubber to increase the friction force with the ground and achieve the vibration reduction effect, so that the stability of the rack is improved.
Furthermore, the steering simulation bench measurement and control system rotates a steering wheel at a certain rotating speed, usually 5-30RPM, transmits a signal to a torque sensor, the torque sensor transmits the signal to an electronic control unit, the electronic control unit transmits the signal to a motor, and the motor feeds back the signal to drive the motor to work, so that power is provided for the steering system.
Furthermore, the electronic control unit sends and receives signals through the acquisition card by acquisition software, and the storage battery supplies power to the whole system.
Furthermore, the working table surface is used as the placing position of a storage battery, a collecting card and a notebook computer integrated with collecting software, and simulates an electric control unit of a real vehicle.
Furthermore, the horizontal tube beam can change the installation position of the steering column by adjusting the left and right tube beam locking mechanisms, so that the installation hard point position of a real vehicle is simulated.
Furthermore, the counterweight iron blocks are a plurality of mass blocks with rated weight, and the front axle load of the real vehicle is simulated by increasing or decreasing the counterweight iron blocks with different numbers.
Furthermore, a torsion bar is designed in the steering column, the upper end of the torsion bar is installed in the input shaft, a torque sensor is configured on the torsion bar, the lower end of the torsion bar is installed in the output shaft, the torsion bar is screwed with the steering intermediate shaft through a bolt, the steering wheel is rotated at a certain rotating speed, usually 5-30RPM, to drive the torsion bar in the steering column to twist, so that torque is transmitted to the steering intermediate shaft, the steering intermediate shaft drives a rack and pinion mechanism in a steering engine, a tire is driven, and a steering function is realized.
Compared with the prior art, the utility model, beneficial effect is:
the utility model discloses a be applicable to the steering simulation rack that car EPS system comprehensive properties detected, adopted as much as possible real car accessories to highly restore real car state to make the performance data of detection more be close to real car result; steering systems of different projects and different types of steering systems can be realized by replacing the pipe column mounting clamp and the steering machine mounting clamp; the system is powered by the storage battery, and the acquisition software sends corresponding messages to conveniently realize the required working condition loading; the platform frame cancels irrelevant complex accessories on the actual vehicle, realizes the simulation of the front axle load by using the counterweight iron block, has simple and compact structure, is easy to operate, and greatly improves the detection efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the wheel connection of the present invention.
Fig. 3 is the schematic diagram of the cylinder pin distribution mechanism and the pin feeding mechanism of the present invention.
Description of the drawings: 1-transverse tubular beam, 2-tubular column mounting clamp, 3-steering wheel, 4-working table surface, 5-tubular beam locking mechanism, 6-steering tubular column, 7-steering intermediate shaft, 8-wheel hub, 9-vertical tubular beam, 10-front shaft shock absorber, 11-tire, 12-steering knuckle, 13-road surface simulation plate, 14-steering engine, 15-steering engine mounting clamp, 16-counterweight iron block, 17-system mounting clamp, 18-lower swing arm, 19-base, 20-brake disc, 21-torque sensor, 22-electronic control unit, 23-motor, 24-storage battery, 25-acquisition card and 26-acquisition software.
Detailed Description
This embodiment provides a turn to simulation rack for car EPS system comprehensive properties detects, as shown in fig. 1, fig. 2, fig. 3, the utility model discloses a: 1-transverse tubular beam, 2-tubular column mounting clamp, 3-steering wheel, 4-working table surface, 5-tubular beam locking mechanism, 6-steering tubular column, 7-steering intermediate shaft, 8-wheel hub, 9-vertical tubular beam, 10-front shaft shock absorber, 11-tire, 12-steering knuckle, 13-road surface simulation plate, 14-steering engine, 15-steering engine mounting clamp, 16-counterweight iron block, 17-system mounting clamp, 18-lower swing arm, 19-base, 20-brake disc, 21-torque sensor, 22-electronic control unit, 23-motor, 24-storage battery, 25-acquisition card and 26-acquisition software. The simulation bench measurement and control system comprises a steering wheel 3, a torque sensor 21, an electronic control unit 22, a motor 23, a storage battery 24, a collection card 25 and collection software 26. The 6-steering column used in the example is an electric power steering column, the 14-steering engine is a mechanical steering engine, the 25-acquisition card is a Kvaser acquisition card, and the 26-acquisition software used in the example is Kvaser Canking acquisition software.
Before the detection starts, the front axle load of the real vehicle is simulated by increasing or decreasing different numbers of 16-counterweight iron blocks, the 1-horizontal tube beam changes the installation position of a steering column by adjusting a left 5-tube beam locking mechanism and a right 5-tube beam locking mechanism, and a 2-tube column installation clamp, a 15-steering machine installation clamp and a 17-system installation clamp are adjusted according to the real vehicle state, so that the installation hard point position of the real vehicle is simulated.
The 24-storage battery is electrically connected with a 22-electronic control unit in the 6-electric power steering column, after the power is on, 26-Kvaser CanKing acquisition software transmits a message to the 22-electronic control unit through a 25-Kvaser acquisition card, a torsion bar is designed in the 6-electric power steering column, the upper end of the torsion bar is arranged in an input shaft, a 21-torque sensor is arranged on the upper end of the torsion bar, the lower end of the torsion bar is arranged in an output shaft and is screwed up with a 7-steering intermediate shaft through a bolt, a 3-steering wheel is rotated at a required rotating speed to drive the 6-electric power steering column, the torsion bar in the 6-electric power steering column rotates, the 21-torque sensor transmits a signal to the 22-electronic control unit and transmits a torque to the 7-steering intermediate shaft at the same time, the swing force is transmitted to an 11-tire by a steering knuckle connected with a 14-mechanical steering machine driven by a 7-steering intermediate shaft, the 11-tire acts on a 13-road surface simulation board and is fed back to a 6-electric power steering column through the transmission path, a 22-electronic control unit in the 6-electric power steering column transmits a signal to a 23-motor after receiving torque feedback, the motor is driven to work by a 23-motor feedback signal to provide power for a steering system and reflect the power to a 3-steering wheel, and meanwhile, a 26-Kvaser Canng acquisition software receives a message signal sent by the 22-electronic control unit in real time through a 25-Kvaser acquisition card.
The utility model has the main advantages that: the detection type coverage is wide, the loading mode is convenient, the reduction degree of the real vehicle environment is high, and the structure is simple and convenient and is easy to operate.
The present invention can be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered within the scope of the appended claims.
Claims (9)
1. The utility model provides a turn to simulation rack for car EPS system comprehensive properties detects which characterized in that: the steering column mounting device comprises a rack part and a measurement and control system part, wherein the rack part comprises the uppermost working table, a support frame which is formed by fixing a transverse tubular beam, a vertical tubular beam and a tubular beam locking mechanism is arranged below the working table, and a tubular column mounting clamp which can adjust the mounting angle of a steering tubular column according to the real vehicle state so as to restore the real vehicle carrying environment is fixed on the transverse tubular beam; a steering column is fixed below the transverse tubular beam, the input end of the steering column is connected with a steering wheel, the output end of the steering column is connected with the input end of a steering intermediate shaft, the output end of the steering intermediate shaft is connected with a steering machine below, the steering machine is installed on a steering machine installation clamp, the steering machine installation clamp is fixed on a system installation clamp, and the steering machine installation clamp is adjusted to restore a real vehicle carrying environment; the two ends of the steering engine are connected with steering knuckles, the steering knuckles connect the front axle shock absorber, the lower swing arm and the brake disc together, the brake disc is connected with a wheel hub, the wheel hub is connected with a tire, the tire is in contact with a road surface simulation plate, the simulation of different working conditions is realized by replacing different road surface simulation plates, and the load of the front axle is adjusted by increasing or decreasing counterweight iron blocks so as to restore the carrying environment of the real vehicle; the simulation bench test and control system part consists of a steering wheel, a torque sensor, an electronic control unit, a motor, a storage battery and a collection card, and all the parts are in communication connection.
2. The steering simulation bench for detecting the comprehensive performance of the automobile EPS system as claimed in claim 1, wherein: the rack part is fixed on the base, and rubber is arranged at the joint of the base and the ground.
3. The steering simulation bench for detecting the comprehensive performance of the automobile EPS system as claimed in claim 1, wherein: the simulation bench measurement and control system part rotates a steering wheel at the rotating speed of 5-30RPM to transmit signals to a torque sensor, the torque sensor transmits the signals to an electronic control unit, the electronic control unit transmits the signals to a motor, the motor feeds back the signals to drive the motor to work, and power is provided for a steering system.
4. The steering simulation bench for detecting the comprehensive performance of the EPS system of the automobile as claimed in claim 3, wherein: the electronic control unit is used for sending and receiving signals through an acquisition card by acquisition software, and the storage battery supplies power to the whole system.
5. The steering simulation bench for detecting the comprehensive performance of the automobile EPS system as claimed in claim 1, wherein: the working table is used as the placing position of a storage battery, a collecting card and a notebook computer integrated with collecting software to simulate an electric control unit of a real vehicle.
6. The steering simulation bench for detecting the comprehensive performance of the automobile EPS system as claimed in claim 1, wherein: tubular beam locking mechanisms are symmetrically installed at the left end and the right end of the transverse tubular beam, and the installation position of the steering column is changed by adjusting the tubular beam locking mechanisms at the two ends, so that the installation hard point position of a real vehicle is simulated.
7. The steering simulation bench for detecting the comprehensive performance of the automobile EPS system as claimed in claim 1, wherein: the steering engine is also provided with a counterweight iron block consisting of a plurality of mass blocks with rated weight, and the front axle load of the real vehicle is simulated by increasing or decreasing the counterweight iron blocks with different quantities.
8. The steering simulation bench for detecting the comprehensive performance of the automobile EPS system as claimed in claim 1, wherein: the pipe column mounting fixture and the steering machine mounting fixture are replaceable, and the threaded holes in the bottom plates at the pipe column mounting fixture and the steering machine mounting fixture are used for dismounting and replacing various product fixtures, so that the requirements of different mounting hard points are met, and different types of steering system test pieces are carried.
9. The steering simulation bench for detecting the comprehensive performance of the automobile EPS system as claimed in claim 1, wherein: the steering column is provided with a torsion bar, the upper end of the torsion bar is arranged in an input shaft, a torque sensor is arranged on the torsion bar, the lower end of the torsion bar is arranged in an output shaft and is screwed with a steering intermediate shaft through a bolt, a steering wheel is rotated at the rotating speed of 5-30RPM to drive the torsion bar in the steering column to twist, so that torque is transmitted to the steering intermediate shaft, the steering intermediate shaft drives a rack and pinion mechanism in a steering engine to drive a tire, and the steering function is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022969116.XU CN213632694U (en) | 2020-12-10 | 2020-12-10 | Steering simulation rack for detecting comprehensive performance of automobile EPS system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022969116.XU CN213632694U (en) | 2020-12-10 | 2020-12-10 | Steering simulation rack for detecting comprehensive performance of automobile EPS system |
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| CN213632694U true CN213632694U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022969116.XU Active CN213632694U (en) | 2020-12-10 | 2020-12-10 | Steering simulation rack for detecting comprehensive performance of automobile EPS system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640019A (en) * | 2021-08-02 | 2021-11-12 | 荆州裕德机械制造有限公司 | Test bench and test method for reproducing steering abnormal sound |
| CN114241888A (en) * | 2022-01-05 | 2022-03-25 | 北京智扬北方国际教育科技有限公司 | Electric power-assisted system teaching device and using method thereof |
| CN114608845A (en) * | 2022-03-08 | 2022-06-10 | 苏州睿集汽车技术有限公司 | EPS (electric Power storage) in-loop simulation test bench for intelligent driving of automobile |
-
2020
- 2020-12-10 CN CN202022969116.XU patent/CN213632694U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640019A (en) * | 2021-08-02 | 2021-11-12 | 荆州裕德机械制造有限公司 | Test bench and test method for reproducing steering abnormal sound |
| CN114241888A (en) * | 2022-01-05 | 2022-03-25 | 北京智扬北方国际教育科技有限公司 | Electric power-assisted system teaching device and using method thereof |
| CN114608845A (en) * | 2022-03-08 | 2022-06-10 | 苏州睿集汽车技术有限公司 | EPS (electric Power storage) in-loop simulation test bench for intelligent driving of automobile |
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