CN110386119B - Vehicle assisted steering system and method - Google Patents
Vehicle assisted steering system and method Download PDFInfo
- Publication number
- CN110386119B CN110386119B CN201810348290.7A CN201810348290A CN110386119B CN 110386119 B CN110386119 B CN 110386119B CN 201810348290 A CN201810348290 A CN 201810348290A CN 110386119 B CN110386119 B CN 110386119B
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- vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/24—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle inclination or change of direction, e.g. negotiating bends
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Human Computer Interaction (AREA)
- Regulating Braking Force (AREA)
- Steering Controls (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The invention provides a vehicle auxiliary steering system and a method. The vehicle auxiliary steering system includes: a controller; a control input source electrically connected to the controller and configured to receive driver input; a signal input source electrically connected with the controller and configured to transmit driving state information; a wheel control system that controls braking force on each wheel; and a warning system that issues a warning signal to the driver; wherein the controller is configured to selectively apply a predetermined braking force to a particular wheel by the wheel control system based on the input of the control input source and the signal input source. The vehicle auxiliary steering system and the method simplify the turning and turning operation of the vehicle and effectively improve the driving experience.
Description
Technical Field
The present invention relates to the field of vehicle driving control. More particularly, the present invention relates to a vehicle auxiliary steering system for providing an automatic steering or u-turn function. The invention also relates to a vehicle auxiliary steering method.
Background
It is known that the vehicle typically turns with a minimum radius due to the size of the vehicle and the constraints of the steering system configuration. When a vehicle runs, a sharp turn or a turn needs to be performed sometimes, and when a road is narrow, a driver often needs to perform multiple operations of backing and advancing to gradually realize steering or turning. Such operation increases the difficulty of vehicle driving, resulting in poor user experience.
Accordingly, there is a continuing need for a new vehicle assisted steering system and a vehicle including the same, which is expected to reduce the operational difficulty of steering and turning around of the vehicle and improve the driving comfort.
Disclosure of Invention
An object of the present invention is to provide a vehicle assist steering system capable of assisting turning and u-turn operations of a vehicle in accordance with the control of a driver. Another object of the present invention is to provide an assist steering method.
The purpose of the invention is realized by the following technical scheme:
a vehicle assisted steering system comprising:
a controller;
a control input source electrically connected to the controller and configured to receive driver input;
a signal input source electrically connected with the controller and configured to transmit driving state information;
a wheel control system that controls braking force on each wheel; and
a warning system that issues a warning signal to a driver;
wherein the controller is configured to selectively apply a predetermined braking force to a specific wheel by the wheel control system according to the input of the control input source and the signal input source.
Optionally, the control input source includes an on-off button and a gear button provided on a dashboard or a touch screen.
Optionally, the signal input sources include one or more of steering wheel steering, vehicle speed, wheel speed, brake line pressure.
Optionally, the warning system comprises a buzzer and/or a warning light.
Optionally, a warning light is provided on the switch button and configured to emit yellow visible light.
Optionally, the controller is configured to: entering an automatic mode when a driver presses a switch button for more than a first time and the vehicle speed is lower than a preset value, or when the driver simultaneously presses the switch button and a gear button and the vehicle speed is lower than the preset value;
wherein the controller receives input from the control input source and adjusts the braking torque applied to each wheel in real time.
Optionally, the controller is configured to: after entering the automatic mode and when a driver presses a gear button, entering a preset mode;
wherein the controller operates the wheel control system to apply a predetermined braking torque to a predetermined wheel.
Optionally, the controller is configured to: in the preset mode, if the driver presses the gear button, the shift is made to the next gear.
Optionally, the controller is configured to: in the preset mode, if the driver presses the shift button for more than a second time, the automatic mode is entered.
Optionally, the controller is configured to: in the automatic mode or the preset mode, if the driver presses a switch button or the vehicle speed exceeds a predetermined value, the automatic mode or the preset mode is exited and the normal driving mode is entered.
Optionally, the controller is configured to: the warning system emits a sound and/or optical signal when the driver presses the switch button for more than a first time and the vehicle speed is higher than or equal to a predetermined value, or when the driver simultaneously presses the switch button and the shift button and the vehicle speed is higher than or equal to a predetermined value, or exits the automatic mode or the preset mode.
Alternatively, where the on-off button and the range button are provided on a vehicle touch screen, the controller is configured to enter the automatic mode only when the driver presses the on-off button for more than a first time and the vehicle speed is below a predetermined value.
Optionally, the first time and/or the second time is 2 seconds.
A vehicle assist steering method that assists a steering system with the vehicle, comprising:
1) judging whether a condition for starting a vehicle auxiliary steering system is met or not in a normal driving mode; if yes, starting the vehicle auxiliary steering system and entering an automatic mode;
2) in the automatic mode, judging whether the condition of switching to the preset mode is met or not; if yes, switching to a preset mode;
3) judging whether the conditions for switching to the automatic mode are met or not in the preset mode; if yes, switching to an automatic mode;
4) judging whether the conditions for turning off the auxiliary steering system of the vehicle are met or not in an automatic mode or a preset mode; and if so, switching to the normal driving mode.
Optionally, the condition for starting the auxiliary steering mode includes: the simultaneous pressing of the shift button and the shift position button or the pressing of the shift button exceeds a first time, and the vehicle speed is lower than a predetermined value.
Optionally, the condition for switching to the preset mode includes: the shift button is pressed.
Optionally, the condition for switching to the automatic mode includes: the shift button is pressed for more than a second time.
Alternatively, the condition for switching to the normal running mode includes: a switch button is pressed, or the vehicle speed is greater than or equal to a predetermined value.
The vehicle auxiliary steering system and the vehicle have the advantages of simple structure, easiness in manufacturing, convenience in installation and the like, the turning and turning-around operations of the vehicle are simplified, and the driving experience is effectively improved.
Drawings
The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the invention. Furthermore, unless specifically stated otherwise, the drawings are intended to be conceptual in nature or configuration of the described objects and may contain exaggerated displays and are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of one embodiment of a vehicle auxiliary steering system of the present invention.
FIG. 2 is a flow chart of one embodiment of a vehicle assisted steering method of the present invention.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.
First, it should be noted that the terms top, bottom, upward, downward and the like are defined relative to the directions in the drawings, and they are relative terms, and thus can be changed according to the different positions and different practical states in which they are located. These and other directional terms should not be construed as limiting terms.
Furthermore, it should be noted that any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the figures, can still be combined between these technical features (or their equivalents) to obtain other embodiments of the invention not directly mentioned herein.
It should be noted that in different drawings, the same reference numerals indicate the same or substantially the same components.
Fig. 1 is a schematic structural view of one embodiment of a vehicle auxiliary steering system of the present invention. Wherein, vehicle auxiliary steering system includes: a controller 100; a control input source 110 electrically connected to the controller 100 and configured to receive input from a driver; a signal input source 130 electrically connected to the controller 100 and configured to transmit driving state information; a wheel control system 140 that controls braking forces on the respective wheels; and a warning system 150 that issues a warning signal to the driver.
Wherein the controller 100 is configured to selectively apply a predetermined braking force to a particular wheel via the wheel control system 140 in response to the input from the control input source 110 and the signal input source 130 for the purpose of reducing the turning radius.
Optionally, the control input source 110 includes an on-off button and a gear button disposed on a dashboard or touch screen.
Optionally, the switch button and the gear button are disposed on a touch screen of a center console or an instrument panel.
Optionally, signal input source 130 includes one or more of steering wheel steering, vehicle speed, wheel speed, brake line pressure, etc. signals.
Optionally, the warning system 150 comprises a buzzer and/or a warning light.
Alternatively, a warning lamp is provided on the switch button 120 and configured to emit visible light in yellow.
Optionally, the controller 100 is configured to: entering an automatic mode when a driver presses a switch button for more than a first time and the vehicle speed is lower than a preset value, or when the driver simultaneously presses the switch button and a gear button and the vehicle speed is lower than the preset value; wherein the controller 100 receives input from the control input source 110 and automatically adjusts the braking torque applied to each wheel in real time based on the input.
Optionally, the controller 100 is configured to: after entering the automatic mode and when a driver presses a gear button, entering a preset mode; wherein controller 100 operates wheel control system 140 to apply a predetermined braking torque to a predetermined wheel; and wherein the selection of the wheels and the magnitude of the braking torque depend on the gear selected.
Optionally, the controller 100 is configured to: in the preset mode, if the driver presses the gear button, the shift is made to the next gear.
Optionally, the controller 100 is configured to: in the preset mode, if the driver presses the shift button for more than a second time, the automatic mode is entered.
Optionally, the controller 100 is configured to: in the automatic mode or the preset mode, if the driver presses a switch button or the vehicle speed exceeds a predetermined value, the automatic mode or the preset mode is exited and the normal driving mode is entered.
Optionally, the controller 100 is configured to: an audible and/or optical signal is emitted by the warning system 150 when the driver presses the switch button for more than a first time and the vehicle speed is greater than or equal to a predetermined value, or when the driver simultaneously presses the switch button and the range button and the vehicle speed is greater than or equal to a predetermined value, or exits the automatic or preset mode.
Alternatively, the controller 100 may be a vehicle control unit (ECU), an electronic brake control module, or other suitable control device.
Alternatively, where the on-off button and the range button are provided on a vehicle touch screen, the controller 100 is configured to enter the automatic mode only when the driver presses the on-off button for more than a first time and the vehicle speed is below a predetermined value.
Optionally, the first time and/or the second time is 2 seconds. One skilled in the art can set the first time and the second time to other values as needed and desired, and the first time and the second time can have different durations.
FIG. 2 is a flow chart of one embodiment of a vehicle assisted steering method of the present invention. Wherein the vehicle auxiliary steering method according to the present invention is applied to the vehicle auxiliary steering system according to the above disclosure, the method comprising:
1) judging whether a condition for starting a vehicle auxiliary steering system is met or not in a normal driving mode; if yes, starting the vehicle auxiliary steering system and entering an automatic mode;
2) in the automatic mode, judging whether the condition of switching to the preset mode is met or not; if yes, switching to a preset mode;
3) judging whether the conditions for switching to the automatic mode are met or not in the preset mode; if yes, switching to an automatic mode;
4) judging whether the conditions for turning off the auxiliary steering system of the vehicle are met or not in an automatic mode or a preset mode; and if so, switching to the normal driving mode.
Optionally, the condition for starting the auxiliary steering mode includes: the simultaneous pressing of the shift button and the shift position button or the pressing of the shift button exceeds a first time, and the vehicle speed is lower than a predetermined value.
Optionally, the condition for switching to the preset mode includes: the shift button is pressed.
Optionally, the condition for switching to the automatic mode includes: the shift button is pressed for more than a second time.
Alternatively, the condition for switching to the normal running mode includes: a switch button is pressed, or the vehicle speed is greater than or equal to a predetermined value.
The magnitude of the braking torque and the selection of the wheels in the preset mode may be calculated in advance according to parameters such as the structural size of the vehicle, and stored in a memory electrically connected to the controller 100 and accessible by the controller 100.
In use, the vehicle auxiliary steering system and the vehicle auxiliary steering method can assist a driver to complete turning or turning around operation under the condition that the vehicle speed is not higher than a preset value, so that the burden of the driver is greatly reduced, and the driving experience is improved. By limiting the activation threshold of the vehicle auxiliary steering system to a wheel speed lower than a predetermined value, it is possible to prevent the oversteer characteristic of the vehicle from increasing and the vehicle from having a tendency to be unstable, improving safety performance.
This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and selecting appropriate materials and using any incorporated methods. The scope of the invention is defined by the claims and encompasses other examples that occur to those skilled in the art. Such other examples are to be considered within the scope of the invention as determined by the claims, provided that they include structural elements that do not differ from the literal language of the claims, or that they include equivalent structural elements with insubstantial differences from the literal language of the claims.
Claims (16)
1. A vehicle assisted steering system, comprising:
a controller;
a control input source electrically connected to the controller and configured to receive a driver input, the control input source including an on-off button and a gear button disposed on an instrument panel or a touch screen;
a signal input source electrically connected with the controller and configured to transmit driving state information;
a wheel control system that controls braking force on each wheel; and
a warning system that issues a warning signal to a driver;
wherein the controller is configured to selectively apply a predetermined braking force to a particular wheel by the wheel control system in accordance with the input of the control input source and the signal input source;
the controller is further configured to: entering an automatic mode when a driver presses a switch button for more than a first time and a vehicle speed is lower than a predetermined value, or when the driver simultaneously presses the switch button and a gear button and the vehicle speed is lower than the predetermined value;
wherein the controller receives input from the control input source and adjusts the braking torque applied to each wheel in real time;
the controller is further configured to: after entering the automatic mode and when a driver presses the gear button, entering a preset mode;
wherein the controller operates the wheel control system to apply a predetermined braking torque to a predetermined wheel.
2. The vehicle auxiliary steering system of claim 1, wherein the signal input sources include one or more of steering wheel steering, vehicle speed, wheel speed, brake line pressure.
3. A vehicle assisted steering system according to claim 2, in which the warning system comprises a buzzer and/or a warning light.
4. The vehicle-assisted steering system according to claim 3, characterized in that the warning lamp is provided on the switch button and is configured to emit yellow visible light.
5. The vehicle assist steering system of claim 1, wherein the controller is configured to: in the preset mode, if the driver presses the gear button, the next gear is switched to.
6. The vehicle assist steering system of claim 1, wherein the controller is configured to: in the preset mode, if the driver presses the gear button for more than a second time, the automatic mode is entered.
7. The vehicle assist steering system of claim 6, wherein the controller is configured to: in the automatic mode or the preset mode, if the driver presses the switch button or the vehicle speed exceeds a predetermined value, the automatic mode or the preset mode is exited and the normal driving mode is entered.
8. The vehicle assist steering system of claim 7, wherein the controller is configured to: and when the driver presses the switch button for more than a first time and the vehicle speed is higher than or equal to a preset value, or when the driver simultaneously presses the switch button and the gear button and the vehicle speed is higher than or equal to the preset value, or the automatic mode or the preset mode is exited, emitting a sound and/or an optical signal through the warning system.
9. The vehicle assisted steering system of claim 1, wherein, with the on-off button and the range button disposed on a vehicle touch screen, the controller is configured to enter the automatic mode only when a driver depresses the on-off button for more than a first time and a vehicle speed is below a predetermined value.
10. A vehicle assisted steering system according to claim 1, 6 or 9, in which the first time is 2 seconds.
11. The vehicle assist steering system according to claim 6, wherein the second time is 2 seconds.
12. A vehicle assist steering method for a vehicle assist steering system according to any one of claims 1 to 11, characterized by comprising:
1) judging whether a condition for starting a vehicle auxiliary steering system is met or not in a normal driving mode; if yes, starting the vehicle auxiliary steering system and entering an automatic mode;
2) in the automatic mode, judging whether the condition of switching to the preset mode is met or not; if yes, switching to a preset mode;
3) judging whether the conditions for switching to the automatic mode are met or not in the preset mode; if yes, switching to an automatic mode;
4) judging whether the conditions for turning off the auxiliary steering system of the vehicle are met or not in an automatic mode or a preset mode; and if so, switching to the normal driving mode.
13. The vehicle assist steering method according to claim 12, characterized in that the condition for starting the assist steering mode includes: the simultaneous pressing of the shift button and the shift position button or the pressing of the shift button exceeds a first time, and the vehicle speed is lower than a predetermined value.
14. The vehicle assist steering method according to claim 12, wherein the condition for switching to the preset mode includes: the shift button is pressed.
15. The vehicle-assisted steering method according to claim 12, characterized in that the condition for switching to the automatic mode includes: the shift button is pressed for more than a second time.
16. The vehicle assist steering method according to claim 12, characterized in that the condition for switching to the normal running mode includes: a switch button is pressed, or the vehicle speed is greater than or equal to a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810348290.7A CN110386119B (en) | 2018-04-18 | 2018-04-18 | Vehicle assisted steering system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810348290.7A CN110386119B (en) | 2018-04-18 | 2018-04-18 | Vehicle assisted steering system and method |
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| Publication Number | Publication Date |
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| CN110386119A CN110386119A (en) | 2019-10-29 |
| CN110386119B true CN110386119B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810348290.7A Active CN110386119B (en) | 2018-04-18 | 2018-04-18 | Vehicle assisted steering system and method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111086557B (en) * | 2020-01-06 | 2021-07-20 | 精诚工科汽车***有限公司 | Automatic turning-around method and device for vehicle |
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| CN101346271A (en) * | 2005-12-23 | 2009-01-14 | 大众汽车有限公司 | Parking steering assistance system and method for operating a parking steering assistance system |
| CN202743327U (en) * | 2012-06-27 | 2013-02-20 | 义乌西贝虎特种车辆有限公司 | Steering automated operating system of double-driving vehicle without steering wheels |
| CN103223975A (en) * | 2012-01-28 | 2013-07-31 | 奥迪股份公司 | Method of steering a vehicle by a steering assistance system |
| CN105813878A (en) * | 2013-11-07 | 2016-07-27 | 捷豹路虎有限公司 | Driveline and method of controlling driveline |
| US20170259796A1 (en) * | 2016-03-08 | 2017-09-14 | Hyundai Motor Company | Method for controlling counter steering of vehicle during abs braking |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117203B (en) * | 2017-04-27 | 2019-06-28 | 江苏大学 | A kind of poor square servo steering system and its control method for automobile drive axle |
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2018
- 2018-04-18 CN CN201810348290.7A patent/CN110386119B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101346271A (en) * | 2005-12-23 | 2009-01-14 | 大众汽车有限公司 | Parking steering assistance system and method for operating a parking steering assistance system |
| CN103223975A (en) * | 2012-01-28 | 2013-07-31 | 奥迪股份公司 | Method of steering a vehicle by a steering assistance system |
| CN202743327U (en) * | 2012-06-27 | 2013-02-20 | 义乌西贝虎特种车辆有限公司 | Steering automated operating system of double-driving vehicle without steering wheels |
| CN105813878A (en) * | 2013-11-07 | 2016-07-27 | 捷豹路虎有限公司 | Driveline and method of controlling driveline |
| US20170259796A1 (en) * | 2016-03-08 | 2017-09-14 | Hyundai Motor Company | Method for controlling counter steering of vehicle during abs braking |
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| CN110386119A (en) | 2019-10-29 |
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