CN107031705B - Power steering hierarchical control system and method - Google Patents
Power steering hierarchical control system and method Download PDFInfo
- Publication number
- CN107031705B CN107031705B CN201610877236.2A CN201610877236A CN107031705B CN 107031705 B CN107031705 B CN 107031705B CN 201610877236 A CN201610877236 A CN 201610877236A CN 107031705 B CN107031705 B CN 107031705B
- Authority
- CN
- China
- Prior art keywords
- power
- assisted
- signal
- grade
- tooth
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/046—Controlling the motor
- B62D5/0469—End-of-stroke control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/146—Display means
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Steering Mechanism (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The present invention provides a kind of power steering hierarchical control system and method, system therein may include input module, instrument display system and the electronic power assist steering system of successively signal connection, instrument display system includes man-machine interface, electronic power assist steering system includes assist motor, and the output shaft tooth of assist motor is than adjustable；Input module generates power-assisted hierarchy designating signal according to operation information and is sent to instrument display system, instrument display system shows the setting variation of power-assisted grade in man-machine interface according to power-assisted hierarchy designating signal, and corresponding power-assisted level signal is sent to electronic power assist steering system, output shaft tooth ratio is switched to corresponding matching status and returns to execution by electronic power assist steering system according to power-assisted level signal control assist motor completes signal.The present invention form the close loop control circuit of power-assisted grade between instrument display system and electronic power assist steering system, it can be achieved that power-assisted grade reliable adjustment, improve the safety of driving.
Description
Technical field
The present invention relates to the technical fields of electronic apparatus, especially with regard to a kind of power steering hierarchical control system and side
Method.
Background technique
Driver is in driving procedure, due to the difference of individual physique and physical qualification, often because of wheel steering power
It spends weight or kicks the beam, cause not all driver that can adapt to fixed single steering dynamics and generate the fatigue of arm,
And then in unconsciously slip-angle steering direction, cause security risk.However, existing electronic power assist steering mode is predominantly logical
The fixed dynamics steering mode of mechanical-hydraulic or common fixed dynamics electronic power assist steering mode are crossed, is only capable of providing in driving procedure
Single steering force can not look after the driving power of entire population, be easy to produce driver to steering force and steering wheel control
Puzzlement, influence drive comfortableness and security.
Summary of the invention
The purpose of the present invention is to provide a kind of power steering hierarchical control system and methods, and power steering grade is adjusted
And improve drive safety.
The present invention provides a kind of power steering hierarchical control system, and input module, instrument including the connection of successively signal are aobvious
Show system and electronic power assist steering system, the instrument display system includes man-machine interface, the electronic power assist steering system packet
Assist motor is included, the output shaft tooth of the assist motor is than adjustable；
The input module generates power-assisted hierarchy designating signal according to operation information and is sent to the instrument display system,
The instrument display system shows the setting variation of power-assisted grade in man-machine interface according to the power-assisted hierarchy designating signal, and will be right
The power-assisted level signal answered is sent to the electronic power assist steering system, and the electronic power assist steering system is according to described power-assisted etc.
Grade signal controls the assist motor and output shaft tooth ratio is switched to corresponding matching status and returns to execution completion signal, described
Instrument display system completes signal according to the execution and generates hint image in man-machine interface.
Further, the electronic power assist steering system is stored with the tooth demarcated obtain in advance than predetermined amount and power-assisted grade
The inquiry table of corresponding relationship between signal, the electronic power assist steering system obtain correspondence according to power-assisted level signal inquiry
Tooth than predetermined amount after, control the assist motor for output shaft tooth ratio and be switched to matching shape more corresponding than predetermined amount with the tooth
State.
Further, the power-assisted grade is divided into three power-assisted grades that power-assisted dynamics successively reduces, and power-assisted dynamics is high
The corresponding tooth of the power-assisted grade power-assisted grade corresponding tooth lower greater than power-assisted dynamics than predetermined amount compares predetermined amount.
Further, the output shaft of the assist motor transmits driving torque by worm gear and worm screw, and the tooth is than default
Measure the number of teeth ratio predetermined amount between worm gear and worm screw.
The present invention also provides a kind of power steering grade control methods, comprising:
Input module generates power-assisted hierarchy designating signal according to operation information and is sent to the instrument display system；
The instrument display system shows that the setting of power-assisted grade becomes in man-machine interface according to the power-assisted hierarchy designating signal
Change, and corresponding power-assisted level signal is sent to electronic power assist steering system；
The electronic power assist steering system controls assist motor for output shaft tooth than switching according to the power-assisted level signal
To corresponding matching status and return to execution completion signal；And
The instrument display system completes signal according to the execution and generates hint image in man-machine interface.
Further, the electronic power assist steering system controls assist motor for output shaft according to the power-assisted level signal
Tooth ratio is switched to corresponding matching status and returns and executes before completing signal, further includes:
The electronic power assist steering system judges whether current vehicle speed is less than preset value；
If current vehicle speed is less than preset value, the electronic power assist steering system executes tooth according to the power-assisted level signal
Than switching action, otherwise, the electronic power assist steering system sends to the instrument display system and executes failure signal.
Further, the electronic power assist steering system controls assist motor for output shaft according to the power-assisted level signal
Tooth ratio is switched to corresponding matching status and returns to the step of signal is completed in execution
The electronic power assist steering system show that the tooth demarcated in advance compares predetermined amount according to power-assisted level signal；
It controls the assist motor and output shaft tooth ratio is switched to matching status more corresponding than predetermined amount with the tooth；And
After completing tooth than switching, Xiang Suoshu instrument display system, which sends to execute, completes signal.
Further, the power-assisted grade is divided into the three grades that power-assisted dynamics successively reduces, the high power-assisted of power-assisted dynamics
The corresponding tooth of the grade power-assisted grade corresponding tooth lower greater than power-assisted dynamics than predetermined amount compares predetermined amount.
Further, the output shaft of the assist motor transmits driving torque by worm gear and worm screw, and the tooth is than default
Measure the number of teeth ratio predetermined amount between worm gear and worm screw.
Further, further includes:
The upper primary setting of the man-machine interface of instrument display system display when power steering hierarchical control system starts
Power-assisted grade.
In the embodiment of the present invention, it is arranged and generates power-assisted level signal by instrument display system, pass through electronics power-assisted
Steering system control assist motor switching output shaft tooth is than state and returns to execution completion signal, so as to according to the setting of user
The dynamics for being automatically performed power steering is adjusted, and the steering force of steering wheel is made to be suitble to various users, and desired turn need to be only arranged in user
To dynamics, so that it may realize comfortable driving experience.Meanwhile it being formed and being helped between instrument display system and electronic power assist steering system
Power grade close loop control circuit, it is ensured that the accuracy and consistency of adjustment signal have used man-machine interface to carry out steering dynamics
Adjusting setting, it is ensured that driver at the first time obtain running information reliability and accuracy.In addition, using gear drive
Mode can effectively improve the accuracy of steering dynamics adjusting.
Detailed description of the invention
Fig. 1 is the configuration diagram of power steering hierarchical control system provided in an embodiment of the present invention.
Fig. 2 is the application schematic diagram of power steering hierarchical control system shown in FIG. 1.
Fig. 3 is the flow diagram of power steering grade control method provided in an embodiment of the present invention.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to a specific embodiment of the invention, structure, feature and its effect, detailed description is as follows.
Fig. 1 is the configuration diagram of power steering hierarchical control system provided in an embodiment of the present invention.As shown in Figure 1, this
The power steering hierarchical control system of invention includes that input module 11, the instrument display system 12 of successively signal connection are helped with electronics
Power steering system (Electric Power Steering, EPS) 13, the signal connection is, for example, to pass through CAN bus
(Controller Area Network, controller local area network) carries out signal connection, wherein instrument display system 12 includes
Man-machine interface 121, electronic power assist steering system 13 includes assist motor 131, and the output shaft tooth of assist motor 131 is than adjustable,
The driving torque exported to adjustable assist motor 131.
Input module 11 generates power-assisted hierarchy designating signal according to operation information and is sent to instrument display system 12, instrument
Display system 12 shows the setting variation of power-assisted grade in man-machine interface 121 according to power-assisted hierarchy designating signal, and helps corresponding
Power level signal is sent to electronic power assist steering system 13, and electronic power assist steering system 13 controls power-assisted according to power-assisted level signal
Output shaft tooth ratio is switched to corresponding matching status and returns to execution by motor 131 completes signal, 12 basis of instrument display system
It executes and completes signal in the generation hint image of man-machine interface 121.
Specifically, input module 11 is, for example, the key being integrated on the steering wheel or instrument board of vehicle, described power-assisted etc.
Grade setting signal generation when user presses the button, wherein user is often set by an one-touch power-assisted grade of corresponding generation
Confidence number, so that the man-machine interface 121 of instrument display system 12 be made to show setting variation corresponding with key presses number.
Instrument display system 12 produces power-assisted grade setting screen and is being arranged when receiving power-assisted hierarchy designating signal
The setting variation of power-assisted grade is shown on picture, with the power-assisted grade for prompting user currently to choose.In embodiments of the present invention, described
Power-assisted grade is three power-assisted grades successively reducing of power-assisted dynamics, after power-assisted grade needed for user's choosing, instrument display system
Power-assisted level signal corresponding with the power-assisted grade currently chosen is sent to electronic power assist steering system 13 by system 12.
It is more right than between predetermined amount and power-assisted level signal that electronic power assist steering system 13 is stored with the tooth demarcated obtain in advance
The inquiry table that should be related to, wherein the high corresponding tooth of power-assisted grade of the power-assisted dynamics power-assisted lower greater than power-assisted dynamics than predetermined amount
The corresponding tooth of grade compares predetermined amount.After electronic power assist steering system 13 receives power-assisted level signal, looked into according to power-assisted level signal
Inquiry obtain corresponding tooth than predetermined amount, and then control assist motor 131 output shaft tooth ratio is switched to it is more corresponding than predetermined amount with tooth
Matching status.In one embodiment of the invention, the output shaft of assist motor 131 is turned by worm gear and worm structure transmitting
The output shaft tooth of dynamic torque, assist motor 131 is more adjustable than the gear ratio between adjustable namely worm gear and worm screw, wherein the snail
Three sections of different regions of item number can be for example sequentially formed on bar, it is flexible by the rotation of 131 output shaft of assist motor, adjust worm screw
With the mating area of worm gear, and then realize tooth than mated condition adjusting.It should be noted that realizing tooth simultaneously than adjustable mode
It is not limited with above structure, as long as the output shaft tooth of assist motor 131 can be realized than adjustable.
In addition, in one embodiment of the invention, electronic power assist steering system 13 can be first after receiving power-assisted level signal
Judge whether current vehicle speed is less than after preset value and execute the switching of power-assisted grade again, to guarantee traffic safety.Wherein, if current vehicle speed
Less than preset value, then electronic power assist steering system 13 executes above-mentioned tooth than switching action, otherwise, electronics according to power-assisted level signal
Servo steering system 13 sends to instrument display system 12 and executes failure signal, and instrument display system 12 receives execution failure signal
After generate hint image, prompt user's current vehicle speed that can not carry out power-assisted level adjustment.In one embodiment of the invention, institute
Stating preset value is, for example, 2km/h or 0km/h.
Next Fig. 2 is combined to be illustrated the application process of the power steering hierarchical control system of the embodiment of the present invention.
As shown in Fig. 2, steering wheel 21 is connect by steering column 22 with steering rack 23, the both ends of steering rack 23 pass through pitman arm
It is connect with wheel 24, input module 11 is set on steering wheel 21, and electronic power assist steering system 13 further includes torque sensor 133
With electronic control unit 132, torque sensor 133 is arranged on steering column 22 and connect with 132 signal of electronic control unit,
132 control unit of electronic control unit is connect with 131 signal of assist motor, and assist motor 131 is connect with steering rack 23 to mention
For power steering.
When the input module 11 on user's operation steering wheel 21, input module 11 generates power-assisted grade according to operation information
Setting signal is simultaneously sent to instrument display system 12, and instrument display system 12 is according to power-assisted hierarchy designating signal in man-machine interface
121 display power-assisted grade settings change, and corresponding power-assisted level signal is sent to the electronics of electronic power assist steering system 13
Control unit 132, electronic control unit 132 control assist motor 131 according to power-assisted level signal and are switched to output shaft tooth ratio
Corresponding matching status simultaneously returns to execution completion signal, and instrument display system 12 completes signal in man-machine interface 121 according to execution
Hint image is generated, the power-assisted level status for prompting user to switch.
When vehicle driving, when user's steering wheel rotation 21, the torque sensor 133 on steering column 22 be will test
Torque signal be sent to the electronic control unit 132 of electronic power assist steering system 13, electronic control unit 132 is according to receiving
Torque signal controls assist motor 131 and operates, and the power-assisted that assist motor 131 provides is folded with steering wheel torque on steering rack 23
Add, realizes electrical power-assisted steering function.At this point, since the output shaft tooth of assist motor 131 according to the setting of user than carrying out
It adjusts, thus the power-assisted dynamics that currently provides of electronic power assist steering system 13 enables a user to the dynamics rotation side to be suitble to oneself
To disk 21, driving sensation and the intelligent reliable connection for being precisely controlled steering dynamics are realized.
In above-mentioned power steering hierarchical control system, it is arranged and generates power-assisted level signal by instrument display system,
Assist motor switching output shaft tooth is controlled than state by electronic power assist steering system and returns to execution completion signal, so as to root
It is adjusted according to the dynamics that the setting of user is automatically performed power steering, so that the steering force of steering wheel is suitble to various users, user only needs
Desired steering dynamics is set, so that it may realize comfortable driving experience.Meanwhile instrument display system and electronic power assist steering system
The close loop control circuit of power-assisted grade is formed between system, it is ensured that the accuracy and consistency of adjustment signal have used man-machine interface
Carry out the adjusting setting of steering dynamics, it is ensured that driver obtains the reliability and accuracy of running information at the first time.In addition,
Using gear transmission mode, and the tooth for carrying out crowd's comfort level in advance is demarcated than predetermined amount, can effectively improve steering dynamics tune
The accuracy of section.
Next combine Fig. 3 that power steering grade control method provided in an embodiment of the present invention is described in detail.Such as
Shown in Fig. 3, power steering grade control method provided in an embodiment of the present invention is mainly comprised the steps that
Step 31, input module generates power-assisted hierarchy designating signal according to operation information and is sent to instrument display system.
Power-assisted hierarchy designating signal generation when user presses the button, wherein it is corresponding that user often presses one-touch
A power-assisted hierarchy designating signal is generated, so that the man-machine interface 121 of instrument display system 12 be made to show and key presses number
Corresponding setting variation.
Step 32, instrument display system shows that the setting of power-assisted grade becomes in man-machine interface according to power-assisted hierarchy designating signal
Change, and corresponding power-assisted level signal is sent to electronic power assist steering system.
Instrument display system 12 can generate power-assisted grade in man-machine interface 121 and set when receiving power-assisted hierarchy designating signal
It sets picture and shows the setting variation of power-assisted grade on setting screen, with the power-assisted grade for prompting user currently to choose.In this hair
In bright embodiment, the power-assisted grade is three power-assisted grades that power-assisted dynamics successively reduces, and can be corresponded in setting screen aobvious
It is shown as " motor pattern, mode standard, comfort mode " or other printed words carries out the intuitive expression of power-assisted grade, wherein " movement mould
Formula " is the high power-assisted level model of power-assisted dynamics, and " mode standard " is the medium power-assisted level model of power-assisted dynamics, " comfortable mould
Formula " is the low power-assisted level model of power-assisted dynamics.Particularly, the man-machine interface 121 of instrument display system 12 is in user's first time
Display " mode standard " can be defaulted when starting power steering hierarchical control system.After user chooses the power-assisted grade of needs, instrument
Power-assisted level signal corresponding with the power-assisted grade currently chosen is sent to electronic power assist steering system 13 by table display system 12.
Step 33, electronic power assist steering system judges whether current vehicle speed is less than preset value, presets if current vehicle speed is less than
Value, then electronic power assist steering system according to power-assisted level signal execute tooth than switching action, otherwise, electronic power assist steering system to
Instrument display system, which is sent, executes failure signal.
Electronic power assist steering system 13 judges whether current vehicle speed is less than preset value after receiving power-assisted level signal, wherein
If current vehicle speed is less than preset value, electronic power assist steering system 13 executes above-mentioned tooth according to power-assisted level signal and moves than switching
Make, otherwise, electronic power assist steering system 13 is sent to instrument display system 12 executes failure signal to guarantee traffic safety, instrument
Display system 12 generates hint image after receiving execution failure signal, prompts user's current vehicle speed that can not carry out power-assisted grade tune
It is whole.In one embodiment of the invention, the preset value is, for example, 2km/h or 0km/h.
Step 34, electronic power assist steering system controls assist motor according to power-assisted level signal and is switched to output shaft tooth ratio
Corresponding matching status simultaneously returns to execution completion signal.
It is more right than between predetermined amount and power-assisted level signal that electronic power assist steering system 13 is stored with the tooth demarcated obtain in advance
The inquiry table that should be related to, wherein the high corresponding tooth of power-assisted grade of the power-assisted dynamics power-assisted lower greater than power-assisted dynamics than predetermined amount
The corresponding tooth of grade compares predetermined amount.After electronic power assist steering system 13 receives power-assisted level signal, looked into according to power-assisted level signal
Inquiry obtain corresponding tooth than predetermined amount, and then control assist motor 131 output shaft tooth ratio is switched to it is more corresponding than predetermined amount with tooth
Matching status, and complete tooth than switching after to instrument display system 12 send execute complete signal.At of the invention one
In embodiment, the output shaft of assist motor 131 transmits driving torque, the output of assist motor 131 by worm gear and worm structure
Axis tooth is more adjustable than the gear ratio between adjustable namely worm gear and worm screw.
Step 35, instrument display system completes signal according to execution and generates hint image in man-machine interface.
Instrument display system 12 prompts user to cut according to completion signal is executed in the generation hint image of man-machine interface 121
The power-assisted level status changed.Further, the power-assisted grade of the also recordable this time setting of instrument display system 12, and next time
The power-assisted grade of last setting is shown when starting power steering hierarchical control system by man-machine interface 121.
In the embodiment of the present invention, it is arranged and generates power-assisted level signal by instrument display system, pass through electronics power-assisted
Steering system control assist motor switching output shaft tooth is than state and returns to execution completion signal, so as to according to the setting of user
The dynamics for being automatically performed power steering is adjusted, and the steering force of steering wheel is made to be suitble to various users, and desired turn need to be only arranged in user
To dynamics, so that it may realize comfortable driving experience.Meanwhile it being formed and being helped between instrument display system and electronic power assist steering system
Power grade close loop control circuit, it is ensured that the accuracy and consistency of adjustment signal have used man-machine interface to carry out steering dynamics
Adjusting setting, it is ensured that driver at the first time obtain running information reliability and accuracy.In addition, using gear drive
Mode, and the tooth for carrying out crowd's comfort level in advance is demarcated than predetermined amount, can effectively improve the accuracy of steering dynamics adjusting.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (9)
1. a kind of power steering hierarchical control system, which is characterized in that input module, instrument including the connection of successively signal are shown
System and electronic power assist steering system, the instrument display system includes man-machine interface, and the electronic power assist steering system includes
Assist motor, the output shaft tooth of the assist motor is than adjustable；
The input module generates power-assisted hierarchy designating signal according to operation information and is sent to the instrument display system, described
Instrument display system shows the setting variation of power-assisted grade in man-machine interface according to the power-assisted hierarchy designating signal, and will be corresponding
Power-assisted level signal is sent to the electronic power assist steering system, and the electronic power assist steering system is judging that current vehicle speed is less than
The assist motor is controlled according to the power-assisted level signal when preset value, output shaft tooth ratio is switched to corresponding matching status
And return to execution and complete signal, the instrument display system completes signal according to the execution and generates prompt picture in man-machine interface
Face.
2. power steering hierarchical control system as described in claim 1, which is characterized in that the electronic power assist steering system is deposited
Contain inquiry table of the tooth than corresponding relationship between predetermined amount and power-assisted level signal demarcated obtain in advance, the electronics power-assisted turn
After obtaining corresponding tooth than predetermined amount according to power-assisted level signal inquiry to system, the assist motor is controlled by output shaft
Tooth ratio is switched to matching status more corresponding than predetermined amount with the tooth.
3. power steering hierarchical control system as claimed in claim 2, which is characterized in that the power-assisted grade is divided into power-assisted power
The three power-assisted grades successively reduced are spent, the high corresponding tooth of power-assisted grade of power-assisted dynamics is lower greater than power-assisted dynamics than predetermined amount
The corresponding tooth of power-assisted grade compares predetermined amount.
4. power steering hierarchical control system as claimed in claim 2, which is characterized in that the output shaft of the assist motor is logical
It crosses worm gear and worm screw transmits driving torque, number of teeth ratio predetermined amount of the tooth than predetermined amount between worm gear and worm screw.
5. a kind of power steering grade control method characterized by comprising
Input module generates power-assisted hierarchy designating signal according to operation information and is sent to instrument display system；
The instrument display system shows the setting variation of power-assisted grade in man-machine interface according to the power-assisted hierarchy designating signal, and
Corresponding power-assisted level signal is sent to electronic power assist steering system；
The electronic power assist steering system controls assist motor according to the power-assisted level signal and is switched to output shaft tooth ratio pair
The matching status answered simultaneously returns to execution and completes signal；And
The instrument display system completes signal according to the execution and generates hint image in man-machine interface；
The electronic power assist steering system controls assist motor according to the power-assisted level signal and is switched to output shaft tooth ratio pair
The matching status answered simultaneously returns before execution completes signal, further includes:
The electronic power assist steering system judges whether current vehicle speed is less than preset value；
If current vehicle speed is less than preset value, the electronic power assist steering system executes tooth ratio according to the power-assisted level signal and cuts
Move work, and otherwise, the electronic power assist steering system sends to the instrument display system and executes failure signal.
6. power steering grade control method as claimed in claim 5, which is characterized in that the electronic power assist steering system root
Output shaft tooth ratio is switched to corresponding matching status and returned according to power-assisted level signal control assist motor and executes completion
The step of signal includes:
The electronic power assist steering system show that the tooth demarcated in advance compares predetermined amount according to power-assisted level signal；
It controls the assist motor and output shaft tooth ratio is switched to matching status more corresponding than predetermined amount with the tooth；And
After completing tooth than switching, Xiang Suoshu instrument display system, which sends to execute, completes signal.
7. power steering grade control method as claimed in claim 6, which is characterized in that the power-assisted grade is divided into power-assisted power
Spend the three grades successively reduced, the high corresponding tooth of power-assisted grade of the power-assisted dynamics power-assisted lower greater than power-assisted dynamics than predetermined amount
The corresponding tooth of grade compares predetermined amount.
8. power steering grade control method as claimed in claim 6, which is characterized in that the output shaft of the assist motor is logical
It crosses worm gear and worm screw transmits driving torque, number of teeth ratio predetermined amount of the tooth than predetermined amount between worm gear and worm screw.
9. power steering grade control method as claimed in claim 5, which is characterized in that further include:
What the man-machine interface of the instrument display system was once arranged in display when power steering hierarchical control system starts helps
Power grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877236.2A CN107031705B (en) | 2016-10-08 | 2016-10-08 | Power steering hierarchical control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877236.2A CN107031705B (en) | 2016-10-08 | 2016-10-08 | Power steering hierarchical control system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107031705A CN107031705A (en) | 2017-08-11 |
| CN107031705B true CN107031705B (en) | 2019-06-25 |
Family
ID=59532293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610877236.2A Active CN107031705B (en) | 2016-10-08 | 2016-10-08 | Power steering hierarchical control system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107031705B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109720402B (en) * | 2017-10-30 | 2022-01-28 | 长城汽车股份有限公司 | Method and system for adjusting steering power of vehicle |
| CN108100031A (en) * | 2017-12-21 | 2018-06-01 | 奇瑞商用车（安徽）有限公司 | A kind of electric power-assisted steering apparatus and control method |
| CN109367619B (en) * | 2018-11-16 | 2020-04-28 | 华晨鑫源重庆汽车有限公司 | EPS-based power steering mode switching system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6320266A (en) * | 1986-07-11 | 1988-01-27 | Mitsubishi Electric Corp | Motor-driven type power steering controller |
| US5078225A (en) * | 1988-08-18 | 1992-01-07 | Mazda Motor Corporation | Electric power steering system |
| CN201566681U (en) * | 2009-12-08 | 2010-09-01 | 株洲易力达机电有限公司 | Electric power-assisted steering device with various driving modes |
| CN102774416A (en) * | 2011-05-09 | 2012-11-14 | 上海汽车集团股份有限公司 | Electric power steering system, steer-by-wire system and vehicle comprising electric power steering system and steer-by-wire system |
-
2016
- 2016-10-08 CN CN201610877236.2A patent/CN107031705B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6320266A (en) * | 1986-07-11 | 1988-01-27 | Mitsubishi Electric Corp | Motor-driven type power steering controller |
| US5078225A (en) * | 1988-08-18 | 1992-01-07 | Mazda Motor Corporation | Electric power steering system |
| CN201566681U (en) * | 2009-12-08 | 2010-09-01 | 株洲易力达机电有限公司 | Electric power-assisted steering device with various driving modes |
| CN102774416A (en) * | 2011-05-09 | 2012-11-14 | 上海汽车集团股份有限公司 | Electric power steering system, steer-by-wire system and vehicle comprising electric power steering system and steer-by-wire system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107031705A (en) | 2017-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107031705B (en) | Power steering hierarchical control system and method | |
| US11414122B2 (en) | Handwheel-roadwheel resynchronization in steer-by-wire systems | |
| CN109383613A (en) | A kind of method and device for realizing vehicle electric power-assisted steering | |
| JP2007276708A (en) | Sensitivity recognition device, assist force control device, assist force setting device, sensitivity recognition method, assist force control method, assist force setting method, sensitivity recognition program, assist force control program, assist force setting program and recording medium | |
| US5088955A (en) | Sound effect device for radio controllable toy vehicle | |
| US7679496B2 (en) | Adjusting mechanism of a motor vehicle, in particular for automobile seats, and method for operating such an adjusting mechanism and its use | |
| US20090259357A1 (en) | Apparatus for remote operation | |
| CN108100031A (en) | A kind of electric power-assisted steering apparatus and control method | |
| CN112799499A (en) | Motor vehicle man-machine interaction system and method | |
| CN104627240A (en) | Network-based intelligent steering wheel control system and control method thereof | |
| CN107399361B (en) | Steering system, automobile and steering power-assisted adjustment method | |
| CN108657182A (en) | The full landform control method and system of automobile | |
| JP2019172157A (en) | Vehicular control apparatus | |
| CN113548110B (en) | Continuously adjustable power-assisted steering method, system and computer equipment | |
| CN107168288B (en) | A kind of overall structure modeling method of wire-controlled steering system | |
| CN108657087A (en) | the chassis control system of vehicle | |
| CN114248829A (en) | Steering power-assisted control method and device and vehicle | |
| KR100391432B1 (en) | A steering wheel load feeling appearing apparatus and appearing method | |
| JP2002193120A (en) | Electric power steering device | |
| CN116001797B (en) | Intelligent brake pedal feel mode selective association whole vehicle driving mode method | |
| CN115195858B (en) | Man-machine co-driving steering hand feeling control method and system | |
| CN108382455A (en) | Adjusting method, device and the computer readable storage medium of steering dynamics | |
| CN118597179A (en) | Steering wheel vibration reminding function control method and system for intelligent driving vehicle | |
| CN118593999A (en) | Intelligent simulation interaction device, control system and method | |
| JP4200363B2 (en) | Electric power steering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |