CN112339759A - Vehicle safe starting mode control method - Google Patents
Vehicle safe starting mode control method Download PDFInfo
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- CN112339759A CN112339759A CN202011195081.7A CN202011195081A CN112339759A CN 112339759 A CN112339759 A CN 112339759A CN 202011195081 A CN202011195081 A CN 202011195081A CN 112339759 A CN112339759 A CN 112339759A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000001133 acceleration Effects 0.000 claims abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18027—Drive off, accelerating from standstill
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- 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
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- 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
- B60W2552/00—Input parameters relating to infrastructure
- B60W2552/50—Barriers
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
Abstract
The invention relates to a vehicle safe starting mode control method, which comprises the following steps: when the automobile power switch is started, the millimeter wave radar detects obstacles around the automobile and sends signals of three different distance grades, namely 'safety', 'warning' and 'danger', according to the distance between the obstacles and the automobile; and meanwhile, a safe starting mode is started, under the condition that the gears are in a reverse gear mode or a forward gear mode, whether the motion degree of the accelerator pedal exceeds a preset corresponding threshold value or not is collected and judged, and the vehicle speed change is controlled by combining different distance grade signals until normal acceleration and deceleration can be realized. The method is beneficial to improving the driving safety.
Description
Technical Field
The invention belongs to the technical field of vehicle control, and particularly relates to a vehicle safe starting mode control method.
Background
From the latest statistical data analysis of motor vehicle keeping quantity in China, the quantity of automobiles in China is 2.6 hundred million, and the automobile keeping quantity in China shows an increasing trend year by year. With the development of electronic technology, modern automobiles are developing in the direction of intellectualization and electronic information automation, and an electronic sensor serving as a key component of an automobile electronic control system gradually becomes the leading factor and the core of the development of modern automobiles. With the common application of the intelligent sensor in the vehicle, the corresponding control algorithm is also urgently needed to be developed so as to meet the wide market demand and further improve the driving safety.
In the prior art, the control of the mistaken stepping on the accelerator pedal is mainly based on a sensor signal of the accelerator pedal, and the motor is activated to perform reverse dragging or directly perform braking by performing logic judgment on the change rate and the position change rate of the accelerator pedal. However, relying only on the accelerator pedal signal as a design basis has certain limitations.
Disclosure of Invention
The invention aims to provide a vehicle safe starting mode control method which is beneficial to improving the driving safety.
In order to achieve the purpose, the invention adopts the technical scheme that: a vehicle safe starting mode control method comprises the following steps:
when a driver starts an automobile power switch, a millimeter wave radar is started to detect obstacles around a vehicle, then output signals of the millimeter wave radar are processed, three signals with different distance grades of 'safety', 'warning' and 'danger' are sent out according to the distance between the detected obstacles and the vehicle, and when the distance grade is 'danger', an accelerator pedal signal is shielded, and an electronic parking system is started;
when a driver starts an automobile power switch, a safe starting mode is started, gear judgment is firstly carried out, if the mode is a reverse gear mode, the motion degree of an accelerator pedal is collected, whether the motion degree of the accelerator pedal exceeds a set reverse accelerator pedal motion threshold value is judged, if the motion degree of the accelerator pedal does not exceed the set reverse accelerator pedal motion threshold value, normal reverse is carried out when the distance grade is safe, reverse is carried out at a second type of speed once the distance grade is changed to be warning, if the motion degree of the accelerator pedal exceeds the set reverse accelerator pedal motion threshold value, reverse is carried out at a first type of speed when the distance grade is safe, reverse is carried out at a second type of speed once the distance grade is changed to be warning, and the reverse speed of the first type of;
after the reverse gear is finished, gear judgment is carried out again, if the gear is in a forward gear mode, the motion degree of an accelerator pedal is collected, whether the initial value of the motion degree of the accelerator pedal is the minimum value or not is judged, if the initial value of the motion degree of the accelerator pedal is the minimum value, whether the motion degree of the accelerator pedal exceeds a set forward accelerator pedal motion threshold or not is further judged, if the motion degree of the accelerator pedal does not exceed the set forward accelerator pedal motion threshold, the accelerator pedal normally moves forward and starts, if the distance grade is changed to be ' warning ', the accelerator pedal moves forward and starts with ' four-type vehicle speed ', if the distance grade is exceeded, the accelerator pedal moves forward and starts with ' three-type vehicle speed ', and if the distance grade is changed to be ' warning ', the accelerator pedal moves forward and starts with ' four-; if the difference value is not the minimum value, calculating the difference value between the motion degree of the accelerator pedal at the present moment and the motion degree of the accelerator pedal at the previous moment, judging whether the difference value exceeds a set difference value threshold value, if not, exiting a safe starting mode when the current gear-entering operating lever has an improvement change signal and the distance grade is safe, carrying out normal acceleration and deceleration, outputting the vehicle speed changed into four types of vehicle speeds once the distance grade is changed into warning, and carrying out normal acceleration and deceleration until the distance grade is changed into safe; if the distance grade is changed to be safe, the vehicle speed is changed to be output of three types of vehicle speeds, and once the distance grade is changed to be warning, the vehicle speed is changed to be output of four types of vehicle speeds, and normal acceleration and deceleration can be carried out until the distance grade is changed to be safe.
Further, the millimeter wave radar is always in a working state in the driving process.
Further, the distance between the obstacle and the vehicle is divided into three different distance grades, namely 'safety', 'warning' and 'danger', according to the distance from large to small; when the millimeter wave radar detects obstacles around the vehicle, the millimeter wave radar sends out three information of different distance grades of 'safety', 'warning' and 'danger' according to the distance interval where the distance between the obstacles and the vehicle is located, and carries out voice prompt on the 'warning' and the 'danger'.
Further, when the driver starts the automobile power switch, the safe starting mode is started by default, the safe starting mode is provided with a button switch, the switch operation can be performed manually, the safe starting mode is exited, and the working state of the safe starting mode is prompted by voice.
Further, the motion degree of an accelerator pedal in a reverse gear mode is divided, and a motion threshold value of the reverse accelerator pedal is set; and dividing the motion degree of the accelerator pedal in the forward gear mode, and setting a forward accelerator pedal motion threshold.
Further, the difference threshold is set as a percentage of the maximum degree of accelerator pedal movement.
Compared with the prior art, the invention has the following beneficial effects: the method adopts the combination of an intelligent sensor and the motion degree of an accelerator pedal as a judgment basis for the safe starting of the vehicle to control the starting of the vehicle, thereby enhancing the obstacle finding capability of a driver, improving the fault-tolerant capability of the accelerator pedal and improving the driving safety. Therefore, the invention has strong practicability and wide application prospect.
Drawings
FIG. 1 is a flow chart of a method implementation of an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
Referring to fig. 1, the invention provides a vehicle safe starting mode control method, which comprises the following steps:
when a driver starts an automobile power switch, the millimeter wave radar is started to detect obstacles around the automobile, then output signals of the millimeter wave radar are processed, and signals of three different distance levels, namely 'safety', 'warning' and 'danger', are sent out according to the distance between the detected obstacles and the automobile.
The specific implementation method is that the distance between the obstacle and the vehicle is divided into three different distance grades, namely 'safety', 'warning' and 'danger', in advance in the control system according to the distance from large to small; when the millimeter wave radar detects obstacles around the vehicle, the millimeter wave radar sends out three information of different distance grades of 'safety', 'warning' and 'danger' according to the distance interval where the distance between the obstacles and the vehicle is located, and carries out voice prompt on the 'warning' and the 'danger'.
In the driving process, the millimeter wave radar is always in a working state.
And when the distance grade is dangerous, shielding an accelerator pedal signal and starting the electronic parking system.
When a driver starts an automobile power switch, a safe starting mode is started, gear judgment is firstly carried out, if the mode is a reverse gear mode, the motion degree of an accelerator pedal is collected, whether the motion degree of the accelerator pedal exceeds a set reverse accelerator pedal motion threshold value is judged, if the motion degree of the accelerator pedal does not exceed the set reverse accelerator pedal motion threshold value, the automobile is normally backed when the distance grade is safe, the automobile is backed with the second type of automobile speed once the distance grade becomes warning, if the motion degree exceeds the set reverse accelerator pedal motion threshold value, the automobile is backed with the first type of automobile speed when the distance grade is safe, the automobile is backed with the second type of automobile speed once the distance grade becomes warning, and the backing automobile speed of the first type of automobile speed is larger than the.
The safe starting mode is started by default, the safe starting mode is provided with a button switch, the switch operation can be manually carried out, the safe starting mode is quitted, and the working state of the safe starting mode is prompted by voice.
After the reverse gear is finished, gear judgment is carried out again, if the gear is in a forward gear mode, the motion degree of an accelerator pedal is collected, whether the initial value of the motion degree of the accelerator pedal is the minimum value or not is judged, if the initial value of the motion degree of the accelerator pedal is the minimum value, whether the motion degree of the accelerator pedal exceeds a set forward accelerator pedal motion threshold or not is further judged, if the motion degree of the accelerator pedal does not exceed the set forward accelerator pedal motion threshold, the accelerator pedal normally moves forward and starts, if the distance grade is changed to be ' warning ', the accelerator pedal moves forward and starts with ' four-type vehicle speed ', if the distance grade is exceeded, the accelerator pedal moves forward and starts with ' three-type vehicle speed ', and if the distance grade is changed to be ' warning ', the accelerator pedal moves forward and starts with ' four-; if the difference value is not the minimum value, calculating the difference value between the motion degree of the accelerator pedal at the current moment and the motion degree of the accelerator pedal at the previous moment, judging whether the difference value exceeds a set difference value threshold value, if not, exiting a safe starting mode when the current gear-entering operating lever has an improvement change signal and the distance grade is safe, carrying out normal acceleration and deceleration, outputting the speed of the vehicle changed into four types of speed once the distance grade is changed into warning, and carrying out voice prompt until the distance grade is changed into safe; if the distance grade is safe, the vehicle speed is changed into three types of vehicle speed for output when the current gear-entering operating lever has a change-up signal and the distance grade is safe, and the vehicle speed is output when the distance grade changes to warning, and the motion degree of an accelerator pedal is reduced through voice prompt until the distance grade is safe.
In the control system, the motion degree of an accelerator pedal in a reverse gear mode is divided in advance, and a motion threshold value of the reverse accelerator pedal is set; the acceleration pedal motion degree of the forward gear mode is divided in advance, and a forward acceleration pedal motion threshold value is set.
In this embodiment, the difference threshold is set as a percentage of the maximum degree of accelerator pedal movement, e.g., 30%.
The above are preferred embodiments of the present invention, and all changes made according to the technical scheme of the present invention that produce functional effects do not exceed the scope of the technical scheme of the present invention belong to the protection scope of the present invention.
Claims (6)
1. A vehicle safe starting mode control method is characterized by comprising the following steps:
when a driver starts an automobile power switch, a millimeter wave radar is started to detect obstacles around a vehicle, then output signals of the millimeter wave radar are processed, three signals with different distance grades of 'safety', 'warning' and 'danger' are sent out according to the distance between the detected obstacles and the vehicle, and when the distance grade is 'danger', an accelerator pedal signal is shielded, and an electronic parking system is started;
when a driver starts an automobile power switch, a safe starting mode is started, gear judgment is firstly carried out, if the mode is a reverse gear mode, the motion degree of an accelerator pedal is collected, whether the motion degree of the accelerator pedal exceeds a set reverse accelerator pedal motion threshold value is judged, if the motion degree of the accelerator pedal does not exceed the set reverse accelerator pedal motion threshold value, normal reverse is carried out when the distance grade is safe, reverse is carried out at a second type of speed once the distance grade is changed to be warning, if the motion degree of the accelerator pedal exceeds the set reverse accelerator pedal motion threshold value, reverse is carried out at a first type of speed when the distance grade is safe, reverse is carried out at a second type of speed once the distance grade is changed to be warning, and the reverse speed of the first type of;
after the reverse gear is finished, gear judgment is carried out again, if the gear is in a forward gear mode, the motion degree of an accelerator pedal is collected, whether the initial value of the motion degree of the accelerator pedal is the minimum value or not is judged, if the initial value of the motion degree of the accelerator pedal is the minimum value, whether the motion degree of the accelerator pedal exceeds a set forward accelerator pedal motion threshold or not is further judged, if the motion degree of the accelerator pedal does not exceed the set forward accelerator pedal motion threshold, the accelerator pedal normally moves forward and starts, if the distance grade is changed to be ' warning ', the accelerator pedal moves forward and starts with ' four-type vehicle speed ', if the distance grade is exceeded, the accelerator pedal moves forward and starts with ' three-type vehicle speed ', and if the distance grade is changed to be ' warning ', the accelerator pedal moves forward and starts with ' four-; if the difference value is not the minimum value, calculating the difference value between the motion degree of the accelerator pedal at the present moment and the motion degree of the accelerator pedal at the previous moment, judging whether the difference value exceeds a set difference value threshold value, if not, exiting a safe starting mode when the current gear-entering operating lever has an improvement change signal and the distance grade is safe, carrying out normal acceleration and deceleration, outputting the vehicle speed changed into four types of vehicle speeds once the distance grade is changed into warning, and carrying out normal acceleration and deceleration until the distance grade is changed into safe; if the distance grade is changed to be safe, the vehicle speed is changed to be output of three types of vehicle speeds, and once the distance grade is changed to be warning, the vehicle speed is changed to be output of four types of vehicle speeds, and normal acceleration and deceleration can be carried out until the distance grade is changed to be safe.
2. The vehicle safe starting mode control method according to claim 1, characterized in that the millimeter wave radar is always in a working state during driving.
3. The vehicle safe starting mode control method according to claim 1, characterized in that the distance between the obstacle and the vehicle is divided into three different distance levels of "safe", "warning" and "dangerous" according to the distance interval from large to small; when the millimeter wave radar detects obstacles around the vehicle, the millimeter wave radar sends out three information of different distance grades of 'safety', 'warning' and 'danger' according to the distance interval where the distance between the obstacles and the vehicle is located, and carries out voice prompt on the 'warning' and the 'danger'.
4. The method as claimed in claim 1, wherein when the driver starts the power switch of the vehicle, the safe starting mode is started by default, the safe starting mode is provided with a button switch, the button switch can be manually operated, the safe starting mode is exited, and the voice prompt is given to the working state of the safe starting mode.
5. The method for controlling the safe starting mode of the vehicle according to claim 1, characterized in that the accelerator pedal movement degree in the reverse gear mode is divided, and a reverse accelerator pedal movement threshold value is set; and dividing the motion degree of the accelerator pedal in the forward gear mode, and setting a forward accelerator pedal motion threshold.
6. A method as claimed in claim 1, wherein the difference threshold is set as a percentage of the maximum degree of movement of the accelerator pedal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011195081.7A CN112339759A (en) | 2020-10-30 | 2020-10-30 | Vehicle safe starting mode control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011195081.7A CN112339759A (en) | 2020-10-30 | 2020-10-30 | Vehicle safe starting mode control method |
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| CN112339759A true CN112339759A (en) | 2021-02-09 |
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| CN202011195081.7A Pending CN112339759A (en) | 2020-10-30 | 2020-10-30 | Vehicle safe starting mode control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113511206A (en) * | 2021-05-24 | 2021-10-19 | 重庆长安汽车股份有限公司 | Power control method and system based on starting scene, vehicle and storage medium |
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| JPH04215527A (en) * | 1990-12-10 | 1992-08-06 | Mazda Motor Corp | Device for preventing vehicle from rear-end collision |
| CN202448978U (en) * | 2011-12-31 | 2012-09-26 | 湖南吉利汽车部件有限公司 | Accelerator pedal protecting system |
| CN103318174A (en) * | 2012-03-20 | 2013-09-25 | 比亚迪股份有限公司 | Vehicle anti-collision control system and control method thereof |
| CN106976459A (en) * | 2017-04-07 | 2017-07-25 | 京东方科技集团股份有限公司 | The control device and method of auto control system in vehicles and its pre- preventing misoperation of accelerator |
| CN111746560A (en) * | 2020-07-09 | 2020-10-09 | 长泰鑫顺泰实业发展有限公司 | Automobile control method based on automatic control technology |
-
2020
- 2020-10-30 CN CN202011195081.7A patent/CN112339759A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04215527A (en) * | 1990-12-10 | 1992-08-06 | Mazda Motor Corp | Device for preventing vehicle from rear-end collision |
| CN202448978U (en) * | 2011-12-31 | 2012-09-26 | 湖南吉利汽车部件有限公司 | Accelerator pedal protecting system |
| CN103318174A (en) * | 2012-03-20 | 2013-09-25 | 比亚迪股份有限公司 | Vehicle anti-collision control system and control method thereof |
| CN106976459A (en) * | 2017-04-07 | 2017-07-25 | 京东方科技集团股份有限公司 | The control device and method of auto control system in vehicles and its pre- preventing misoperation of accelerator |
| CN111746560A (en) * | 2020-07-09 | 2020-10-09 | 长泰鑫顺泰实业发展有限公司 | Automobile control method based on automatic control technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113511206A (en) * | 2021-05-24 | 2021-10-19 | 重庆长安汽车股份有限公司 | Power control method and system based on starting scene, vehicle and storage medium |
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Application publication date: 20210209 |