CN202911796U - Vehicle high-speed four-wheel steering control device - Google Patents
Vehicle high-speed four-wheel steering control device Download PDFInfo
- Publication number
- CN202911796U CN202911796U CN 201220649955 CN201220649955U CN202911796U CN 202911796 U CN202911796 U CN 202911796U CN 201220649955 CN201220649955 CN 201220649955 CN 201220649955 U CN201220649955 U CN 201220649955U CN 202911796 U CN202911796 U CN 202911796U
- Authority
- CN
- China
- Prior art keywords
- speed
- vehicle
- wheel steering
- control device
- steering control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to the technical field of special vehicle control, in particular to a vehicle high-speed four-wheel steering control device. The vehicle high-speed four-wheel steering control device comprises a programmable logic controller (PLC) control unit, a work mode option switch, an angle sensor and an adjusting valve. The vehicle high-speed four-wheel steering control device is characterized in that the vehicle high-speed four-wheel steering control device is provided with a speed monitoring unit and an alarm unit. The speed monitoring unit is arranged on an output shaft of a gearbox, and the speed monitoring unit and the alarm unit are respectively and electrically connected with the PLC control unit. The vehicle high-speed four-wheel steering control device improves running stability of a vehicle when the vehicle changes direction at a high-speed, reduces operation difficulty of a driver and enables the driver to obtain the same driving experience as two-wheel steering, sensor failure monitoring alarm and excessive steering protection when conducing four-wheel crab-walking direction changing. Due to the implement of an overspeed limit, the vehicle high-speed four-wheel steering control device reduces probability of accidents caused by vehicle component failures or manual error operations and improves production efficiency.
Description
Technical field
The utility model relates to special vehicle control technology field, and is specifically a kind of during to the vehicle high-speed four-wheel steering, whipping occurs, and the unstable state that waits is controlled, and makes Vehicular turn steady, the vehicle high-speed four-wheel steering control setup that is easy to control.
Background technology
At present, existing vehicular four wheels steering controlling device is by the PLC control unit, mode of operation select switch and angular transducer, angular transducer is installed in respectively front-wheel and the trailing wheel of vehicle homonymy, the mode of operation select switch is connected with the PLC control unit respectively with angular transducer, the selection that turns to by the mode of operation select switch, make and turn to mode signal to be input to vehicle-mounted PLC, angular transducer is in real time to front-wheel, measuring of trailing wheel angle, and measured data imported in the vehicle-mounted PLC control unit, signal after the PLC control unit will be processed is through adjusting valve output, and follow the wheel steering angle according to angle difference adjustment, its deficiency is: one, this monitoring technology only adopts the angle monitor mode, can only adjust according to the difference of front and back wheel angle the attitude that turns to of vehicle, can't accurately monitor and adjust the Vehicular turn attitude according to car speed, when causing vehicle high-speed to turn to, attitude be unstable, be prone to whipping, ovdersteering and be difficult to control; Two, when sensor fault occurring, or can not effectively remind the operator when driving over the speed limit, easily have an accident.
Because there is above-mentioned deficiency in this monitoring technology, during use the operator is required highly, the high speed traveling four-wheel is prone to the vehicle unstability when turning.
Summary of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, a kind of raising vehicular four wheels is provided, and sensor fault is appearring in the stability when the crab row turns to, or effectively remind operator, the vehicle high-speed four-wheel steering control setup of preventing accident and occuring when driving over the speed limit.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of vehicle high-speed four-wheel steering control setup, comprise the PLC control unit, the mode of operation select switch, angular transducer and adjustment valve, it is characterized in that being provided with speed monitoring unit and alarm unit, the speed monitoring unit is located on the output shaft of gear-box, speed monitoring unit and alarm unit are electrically connected with the PLC control unit respectively, the basis for estimation whether this vehicle speed signal is not only got involved as the stable direction system, and can also be as the calculating silver of controlling steering angle algorithm, steering angle to flower wheel is controlled, when vehicle moves under " four-wheel steering " or " the crab row turns to " operating mode, its front-and rear-wheel steer angular difference value, and the real-time speed of a motor vehicle is monitored, when the threshold values of deflection angle difference greater than default, and when in real time vehicle speed signal is greater than the stabilization system intervention value set, system's Automatically invoked fuzzy inference rule, correspondence provides difference and turns to creep angle, flower wheel controlling steering angle signal under the different speed of a motor vehicle conditions, by adjusting valve output, control flower wheel steering angle, thus reach optimum control.If vehicle surpasses curb-top speed, or the rotation direction sensor fault, then system provides alerting signal automatically, by fault alarm unit prompting operation person, and carries out Control for Speed Limitation, the generation of Accident prevention.
Speed monitoring described in the utility model unit can adopt the CAN bussing technique, utilize the CAN bussing technique of automotive universal to obtain the real-time J1939 vehicle speed signal of vehicle from output shaft of gear-box, above-mentioned signal is linked in the vehicle PLC control unit by electrical connection and CAN communication modes, in the PLC control unit, the signal that collects is adjusted, codomain limits, relatively and in conjunction with the deflection angle FUZZY ALGORITHMS FOR CONTROL, automatically export best controlling valu according to the speed of set vehicle, the steering angle of wheel is followed in control.
Speed monitoring described in the utility model unit can also adopt speed sensor, the basis for estimation whether this vehicle speed signal is not only got involved as the stable direction system, and can also as the calculating silver of controlling steering angle algorithm, the steering angle of flower wheel be controlled.
The beneficial effects of the utility model are, 1, improved the stability that vehicle travels when high speed steering.2, reduced the operation easier of chaufeur, made chaufeur carry out four-wheel, the crab row obtains the driving experience that similar two-wheeled turns to when turning to.3, sensor fault monitoring, alarming and oversteer protection, the enforcement of hypervelocity restriction further promotes the man machine communication ability, has reduced the probability that has an accident for maloperation because of the fault of vehicle components and parts own or people, thereby has enhanced productivity.
Description of drawings
Fig. 1 is the basiccircuit schematic diagram of background technology.
Reference numeral: S3 among the figure, B13, the 14th, stimulus part, A11 are the control processing sections, Y5, Y6 are outputs.
Fig. 2 is the utility model basiccircuit schematic diagram.
Reference numeral: S3, B13, B14 is stimulus part, A11 is the PLC control unit, Y5, the Y6 flower wheel turns to actuating unit, and H12 is alarm unit, and A12 is the speed monitoring unit.
The specific embodiment:
The present invention is further described below in conjunction with accompanying drawing:
As shown in drawings, vehicle is provided with " two-wheeled turns to " at facia board, and " four-wheel steering ", " the crab row turns to " three kinds of mode of operation select switch S3 turn to mode signal to input to the vehicle-mounted PLC control unit of A11.When S3 selection " four-wheel ", during " crab row " pattern, this stabilization system can be got involved automatically, when S3 selects " two-wheeled turns to " pattern, stabilization system stays out of and turns to control, and the vehicle-mounted PLC of A11 reaches maximum speed and monitors control only to the mode of operation of rotation direction sensor.
Front-wheel and trailing wheel at the vehicle homonymy are equipped with angular transducer B15, B16, realize the measurement of real-time angle, and measured data imported among the vehicle-mounted PLC A11, the angle signal that imports in the vehicle-mounted PLC control unit of A11 at first passes through adjusting of electric zero degree, the actual condition that could mate this vehicle, then be used for respectively representing the steering angle of actual front and back wheel, and by the front and rear angles difference arithmetic, determine the difference of driving wheel and flower wheel deflection angle, the rotating speed of vehicle gear box A12 output shaft can directly represent real-time vehicle running speed, and in the CAN of change speed gear box agreement, can directly read, reach among the vehicle-mounted PLC A11 by communication modes, if vehicle is not supported the CAN communication, also can obtain the real-time speed of a motor vehicle by installing speed sensor additional, the criterion whether this vehicle speed signal not only gets involved as the stable direction system, and the calculated factor as the controlling steering angle algorithm, steering angle to flower wheel is controlled, when vehicle moves under " four-wheel steering " or " the crab row turns to " operating mode, its front-and rear-wheel steer angular difference value, and the real-time speed of a motor vehicle is monitored, when the threshold values of deflection angle difference greater than default, and when in real time vehicle speed signal is greater than the stabilization system intervention value set, system's Automatically invoked fuzzy inference rule, correspondence provides difference and turns to creep angle, flower wheel controlling steering angle signal under the different speed of a motor vehicle conditions, pass through Y5, Y6 adjusts valve output, control flower wheel steering angle, thus reach optimum control, if vehicle surpasses curb-top speed, or the rotation direction sensor fault, then system provides alerting signal automatically, by H12 accident warning device prompting operation person, and carry out Control for Speed Limitation, the generation of Accident prevention.
The utility model design is carried out adjusting of electrical null position when the debugging vehicle, system gets involved the setting of speed, the setting of maximum speed restriction, the setting of angular deviation threshold value.After setting parameter is finished, can put into operation.
The beneficial effects of the utility model are, 1, improved the stability that vehicle travels when high speed steering.2, reduced the operation easier of chaufeur, made chaufeur carry out four-wheel, the crab row obtains the driving experience that similar two-wheeled turns to when turning to.3, sensor fault monitoring, alarming and oversteer protection, the enforcement of hypervelocity restriction further promotes the man machine communication ability, has reduced the probability that has an accident for maloperation because of the fault of vehicle components and parts own or people, thereby has enhanced productivity.
Claims (3)
1. vehicle high-speed four-wheel steering control setup, comprise PLC control unit, mode of operation select switch, angular transducer and adjustment valve, it is characterized in that being provided with speed monitoring unit and alarm unit, the speed monitoring unit is located on the output shaft of gear-box, and speed monitoring unit and alarm unit are electrically connected with the PLC control unit respectively.
2. a kind of vehicle high-speed four-wheel steering control setup according to claim 1 is characterized in that described speed monitoring unit adopts the CAN bussing technique.
3. a kind of vehicle high-speed four-wheel steering control setup according to claim 1 is characterized in that described speed monitoring unit adopts speed sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220649955 CN202911796U (en) | 2012-12-02 | 2012-12-02 | Vehicle high-speed four-wheel steering control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220649955 CN202911796U (en) | 2012-12-02 | 2012-12-02 | Vehicle high-speed four-wheel steering control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202911796U true CN202911796U (en) | 2013-05-01 |
Family
ID=48160130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220649955 Expired - Fee Related CN202911796U (en) | 2012-12-02 | 2012-12-02 | Vehicle high-speed four-wheel steering control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202911796U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103640623A (en) * | 2013-12-24 | 2014-03-19 | 威海广泰空港设备股份有限公司 | High-speed four-wheel steering stabilizing device of vehicle and control method of high-speed four-wheel steering stabilizing device |
| CN105015617A (en) * | 2015-07-08 | 2015-11-04 | 武汉理工大学 | Steering control method and device for rear wheels of commercial vehicle |
-
2012
- 2012-12-02 CN CN 201220649955 patent/CN202911796U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103640623A (en) * | 2013-12-24 | 2014-03-19 | 威海广泰空港设备股份有限公司 | High-speed four-wheel steering stabilizing device of vehicle and control method of high-speed four-wheel steering stabilizing device |
| CN103640623B (en) * | 2013-12-24 | 2016-11-16 | 威海广泰空港设备股份有限公司 | Vehicle high-speed four-wheel steering stabilising arrangement and control method thereof |
| CN105015617A (en) * | 2015-07-08 | 2015-11-04 | 武汉理工大学 | Steering control method and device for rear wheels of commercial vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103587576B (en) | A kind of Power-driven automobile steering-by-wire system and control method | |
| CN103879307B (en) | A kind of trailing wheel individual drive control system for electronlmobil and method | |
| CN109159817B (en) | Steering controller, system, steering and the progress control method of four-drive electric car | |
| CN104176047B (en) | Torque monitoring method and device for hybrid electric vehicle | |
| CN103640623B (en) | Vehicle high-speed four-wheel steering stabilising arrangement and control method thereof | |
| CN105774902A (en) | Automobile power steering control device with fault-tolerant function and control method | |
| CN202098458U (en) | Electrically-controlled electric four-wheel steering system | |
| WO2017028788A1 (en) | Auxiliary steering system and auxiliary steering method for electric vehicle and electric vehicle | |
| CN102935815B (en) | Electric differential control method for electric wheel vehicle | |
| CN104136306A (en) | Control device for vehicle | |
| CN103978972A (en) | Four-wheel steered vehicle and torque distribution control methods for same | |
| CN107618511B (en) | Speed calculation method, system and the vehicle of electric car | |
| WO2016127751A1 (en) | Vehicle speed measurement and control method and system | |
| CN202911796U (en) | Vehicle high-speed four-wheel steering control device | |
| CN206551897U (en) | A kind of four-wheel electric body of a motor car stabilizing control system | |
| CN202923418U (en) | Electronic differential control device of electric wheel vehicle | |
| CN103112365A (en) | Self-adaption electronic differential control system | |
| CN109664939A (en) | A kind of wire-controlled steering system and its control method | |
| CN109131539A (en) | Steering system control method, device and automobile | |
| CN102874308B (en) | Angle transmission ratio control method of wire control steering system based on control lever | |
| CN202783353U (en) | Alternating-current permanent magnet type electric power steering system based on DSP | |
| CN203228845U (en) | Four-wheel electric steering control system for forklift | |
| CN104764897B (en) | Measuring vehicle speed device and speed investigating method | |
| CN106608202B (en) | Intelligent control method and system for electric automobile running coordination | |
| CN113428134A (en) | Motion control safety monitoring and correction strategy for vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20201202 |