CN111409634A - Method and system for improving safety of automatic cruise system of vehicle - Google Patents
Method and system for improving safety of automatic cruise system of vehicle Download PDFInfo
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- CN111409634A CN111409634A CN202010295570.3A CN202010295570A CN111409634A CN 111409634 A CN111409634 A CN 111409634A CN 202010295570 A CN202010295570 A CN 202010295570A CN 111409634 A CN111409634 A CN 111409634A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000001133 acceleration Effects 0.000 claims description 6
- 230000004913 activation Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
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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
- B60W30/14—Adaptive cruise 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
- 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
- B60W30/182—Selecting between different operative modes, e.g. comfort and performance modes
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
The invention provides a method for improving the safety of an automatic cruise system of a vehicle, which comprises the following steps: judging whether the vehicle has a potential dangerous condition at present; after the vehicle is judged to have the potential danger condition at present, judging whether the vehicle is in an automatic cruising state at present; and if the vehicle is in an automatic cruise state, exiting the automatic cruise state, otherwise, controlling the automatic cruise state to be incapable of being activated. According to the scheme of the invention, when the vehicle has a potential dangerous condition, the cruise system does not have the vehicle operation right any more, so that the safety of the vehicle when the cruise function is started is improved, and the secondary damage after collision is reduced. In addition, the scheme of the invention does not need additional hardware, and the method is very simple and has strong operability.
Description
Technical Field
The invention relates to the technical field of automatic cruising of automobiles, in particular to a method and a system for improving the safety of an automatic cruising system of a vehicle.
Background
To reduce long distance driving fatigue, vehicles today are typically equipped with cruise systems. Cruise Control is a kind of auxiliary driving, in which a driver sets a Cruise speed or a Cruise distance by operating a key on a steering wheel, and after releasing an accelerator, a vehicle can stably run according to a preset target speed/follow distance. The cruise has the advantages of freeing feet, reducing fatigue, reducing oil consumption and the like.
The cruise function can be turned off by stepping on the brake, the accelerator or manual intervention such as pressing a key, but the cruise control is not generally exited without manual active intervention. When the vehicle is in a dangerous situation, such as a collision, a driver opens a door, and the like, if the cruise function is not closed, the cruise system continues to output a power request, and at the moment, secondary damage is caused, and casualties may be seriously caused.
Disclosure of Invention
An object of the present invention is to improve the safety of a cruise function by turning off the cruise function and giving driving initiative back to a driver when a vehicle is in a cruise state and a potential danger occurs.
Another object of the invention is to improve the cruise safety in a simple way without additional hardware.
In particular, the present invention provides a method of improving the safety of an auto-cruise system of a vehicle, comprising the steps of:
judging whether the vehicle has a potential dangerous condition at present;
after the vehicle is judged to have the potential danger condition at present, judging whether the vehicle is in an automatic cruising state at present;
and if the vehicle is in an automatic cruise state, exiting the automatic cruise state, otherwise, controlling the automatic cruise state to be incapable of being activated.
Optionally, in the step of determining whether the vehicle currently has a potentially dangerous condition, the potentially dangerous condition includes the vehicle colliding and the door being opened.
Optionally, if any one of the vehicle collision and the door opening occurs, it is determined that the vehicle is currently in a potentially dangerous condition.
Optionally, the determining whether the vehicle currently has the potentially dangerous condition includes the following steps:
acquiring a current deceleration value of the vehicle;
and comparing the deceleration value with a preset threshold value, and if the deceleration value is greater than the preset threshold value, judging that the vehicle collides.
Optionally, the method further comprises: allowing activation of the auto cruise system only if the vehicle is not currently in the presence of the potentially dangerous condition.
In particular, the present invention provides a system for improving the safety of an auto-cruise system of a vehicle, comprising:
the first judgment unit is used for judging whether the vehicle has a potential danger condition at present;
the second judgment unit is used for judging whether the vehicle is in an automatic cruising state or not after judging that the vehicle has a potential danger condition at present;
and the control unit is used for exiting the automatic cruise state if the vehicle is in the automatic cruise state currently, and otherwise, controlling the automatic cruise state not to be activated.
Optionally, the potentially dangerous condition includes the vehicle colliding and the door being opened.
Optionally, the first determination unit is configured to determine that a potentially dangerous condition exists in the vehicle when any one of the vehicle collision and the door opening occurs.
Optionally, the first judging unit includes:
the acceleration sensor is used for acquiring a current deceleration value of the vehicle;
and the comparison subunit is used for comparing the deceleration value with a preset threshold value, and if the deceleration value is greater than the preset threshold value, judging that the vehicle collides.
Optionally, the first determining unit further includes:
the vehicle door opening and closing sensor is used for acquiring opening or closing information of the vehicle door;
and the judging subunit is used for judging that the vehicle has a potential dangerous condition when the vehicle door is in an open state.
According to the scheme of the invention, when the vehicle has a potential dangerous condition, the cruise system does not have the vehicle operation right any more, so that the safety of the vehicle when the cruise function is started is improved, and the secondary damage after collision is reduced. In addition, the scheme of the invention only needs to add a corresponding algorithm in the control logic, does not need to add extra hardware to realize the functions, and has the advantages of simple method and strong operability.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 shows a schematic flow diagram of a method of improving the safety of an auto cruise system of a vehicle according to one embodiment of the present invention;
fig. 2 shows a schematic block diagram of a system for improving the safety of an auto-cruise system of a vehicle according to one embodiment of the present invention.
Detailed Description
Fig. 1 shows a schematic flow diagram of a method of improving the safety of an auto cruise system of a vehicle according to one embodiment of the present invention. As shown in fig. 1, the method includes:
step S100, judging whether a vehicle has a potential danger condition at present;
step S200, after judging that the vehicle has a potential danger condition at present, judging whether the vehicle is in an automatic cruising state at present;
and step S300, if the vehicle is in the automatic cruise state at present, the vehicle exits the automatic cruise state, and otherwise, the automatic cruise control state cannot be activated.
In step S100, the potentially dangerous situation includes that the vehicle has collided and the door is opened, and if any one of the collided and the door is opened, it is determined that the potentially dangerous situation exists in the vehicle.
The method for judging whether the vehicle is collided comprises the following steps: acquiring a current deceleration value of a vehicle; and comparing the deceleration value with a preset threshold value, and if the deceleration value is greater than the preset threshold value, judging that the vehicle collides.
According to the scheme of the embodiment of the invention, when the vehicle has a potential dangerous condition, the cruise system does not have the vehicle operation right any more, so that the safety of the vehicle when the cruise function is started is improved, and the secondary damage after collision is reduced. In addition, the scheme of the invention only needs to add a corresponding algorithm in the control logic, namely two judgment modules and an execution module are added, wherein the two judgment modules respectively judge whether the vehicle has a dangerous state and judge whether the vehicle is in an automatic cruise state after the dangerous state is determined, the execution module executes to exit the automatic cruise state or controls the automatic cruise state to be incapable of being activated according to the judgment result of the judgment modules, and hardware is not required to be additionally added to realize the functions.
Allowing activation of the auto cruise system only if the vehicle is not currently in the presence of the potentially dangerous condition.
When the automatic cruise control system is specifically implemented, a driver judges whether collision occurs or not and whether a vehicle door is opened or not when the automatic cruise control function is activated through a key, and the automatic cruise control function is not allowed to be activated when any condition occurs.
In one embodiment, the method of improving the safety of an auto cruise system of a vehicle comprises the steps of: and judging whether the vehicle door is opened currently or not, if so, further judging whether the vehicle is in an automatic cruise state currently or not, if so, quitting the automatic cruise state, and otherwise, controlling the automatic cruise state to be incapable of being activated. In this embodiment, the method of exiting the auto cruise state may be, for example: when the door sensor detects that the door is in an open state, the control of the accelerator pedal on the vehicle is cut off. In this embodiment, the following steps may be further included after exiting the auto cruise state: the output driving torque of the engine is reduced, the wheel braking torque is appropriately given, and the gear is shifted according to the vehicle speed, so that the vehicle is decelerated until the vehicle speed is reduced to a minimum value.
In another embodiment, the method of improving the safety of an auto cruise system of a vehicle comprises: judging whether the vehicle is collided at present, if so, further judging whether the vehicle is in an automatic cruise state at present, if so, quitting the automatic cruise state, otherwise, controlling the automatic cruise state to be incapable of being activated. In this embodiment, the method of exiting the auto cruise state may be, for example: when the door sensor detects that the door is in an open state, the control of the accelerator pedal on the vehicle is cut off. In this embodiment, the following steps may be further included after exiting the auto cruise state: the output driving torque of the engine is reduced, the wheel braking torque is appropriately given, and the gear is shifted according to the vehicle speed, so that the vehicle is decelerated until the vehicle speed is reduced to a minimum value.
In yet another embodiment, the method of improving the safety of an auto cruise system of a vehicle includes: judging whether the vehicle is collided and the door is opened or not at present, if so, further judging whether the vehicle is in an automatic cruise state or not, if so, quitting the automatic cruise state, otherwise, controlling the automatic cruise state to be incapable of being activated. In this embodiment, the method of exiting the auto cruise state may be, for example: when the door sensor detects that the door is in an open state, the control of the accelerator pedal on the vehicle is cut off. In this embodiment, the following steps may be further included after exiting the auto cruise state: the output driving torque of the engine is reduced, the wheel braking torque is appropriately given, and the gear is shifted according to the vehicle speed, so that the vehicle is decelerated until the vehicle speed is reduced to a minimum value.
When the vehicle is in the automatic cruise state, whether collision occurs or not is continuously judged, if collision occurs, the cruise control is quitted, and the cruise is not allowed to be restarted until a collision signal disappears. And when the vehicle is in the automatic cruising state, whether the vehicle door is opened or not is continuously judged, if the vehicle door is opened, the cruising is stopped, and the cruising is not allowed to be restarted until the vehicle door is closed.
Fig. 2 shows a schematic block diagram of a system for improving the safety of an auto-cruise system of a vehicle according to one embodiment of the present invention. As shown in fig. 2, the system includes a first judging unit 1, a second judging unit 2, and a control unit 3.
The first judgment unit 1 is used for judging whether a potential dangerous condition exists in the vehicle at present. Potentially dangerous conditions include a vehicle collision and a door being opened. The first judgment unit is configured to judge that the vehicle is in a potential dangerous condition when any one of the vehicle collision and the vehicle door opening happens. The second judging unit 2 is used for judging whether the vehicle is currently in an automatic cruising state after judging that the vehicle currently has a potential danger condition. The control unit 3 is adapted to exiting the auto-cruise state if the vehicle is currently in the auto-cruise state, otherwise controlling the auto-cruise state to be inactive.
The first judgment unit 1 includes an acceleration sensor and a comparison subunit. The acceleration sensor is used for acquiring the current deceleration value of the vehicle. The comparison subunit is used for comparing the deceleration value with a preset threshold value, and if the deceleration value is greater than the preset threshold value, the vehicle is judged to be collided. The comparison subunit stores a preset threshold value obtained through a collision test, and the vehicle can be determined to be collided under the preset threshold value.
The first judgment unit 1 further includes a door opening and closing sensor and a judgment subunit. The door opening and closing sensor is used for acquiring opening or closing information of the door. The judging subunit is used for judging that the vehicle has a potential dangerous condition when the vehicle door is in the open state. The judging subunit may be connected to the door sensor, for example, and receive a door opening/closing signal detected by the door sensor, judge that the vehicle has a potential danger when the door is in an open state, and feed back the judgment result to the control unit 3.
According to the scheme of the embodiment of the invention, when the vehicle has a potential dangerous condition, the cruise system does not have the vehicle operation right any more, so that the safety of the vehicle when the cruise function is started is improved, and the secondary damage after collision is reduced. In addition, the scheme of the invention only needs to add a corresponding algorithm in the control logic, does not need to add extra hardware to realize the functions, and has the advantages of simple method and strong operability.
In one particular embodiment, the crash signal is transmitted to the airbag controller via an acceleration sensor and then to the engine management system. When a collision occurs, the deceleration value of the acceleration sensor exceeds a preset threshold value, and the engine management system receives a collision signal and quits the automatic cruise control. The opening and closing state of the vehicle door is transmitted to the vehicle body control unit through the vehicle door opening and closing sensor, then transmitted to the engine control unit, and quit the automatic cruise control. Other technical features of the system correspond to those of the method one to one, and are not described herein again.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A method of improving the safety of an auto-cruise system of a vehicle, comprising the steps of:
judging whether the vehicle has a potential dangerous condition at present;
after the vehicle is judged to have the potential danger condition at present, judging whether the vehicle is in an automatic cruising state at present;
and if the vehicle is in an automatic cruise state, exiting the automatic cruise state, otherwise, controlling the automatic cruise state to be incapable of being activated.
2. The method of claim 1, wherein the step of determining whether the vehicle currently has a potentially dangerous condition includes the vehicle colliding and the door being opened.
3. The method of claim 2, wherein the vehicle is determined to be currently in a potentially dangerous condition if either of the vehicle is involved in a collision and the door is opened.
4. The method of claim 3, wherein said determining whether the vehicle is currently in a potentially dangerous condition comprises the steps of:
acquiring a current deceleration value of the vehicle;
and comparing the deceleration value with a preset threshold value, and if the deceleration value is greater than the preset threshold value, judging that the vehicle collides.
5. The method according to any one of claims 1-4, further comprising: allowing activation of the auto cruise system only if the vehicle is not currently in the presence of the potentially dangerous condition.
6. A system for improving the safety of an auto-cruise system of a vehicle, comprising:
the first judgment unit (1) is used for judging whether a potential danger condition exists in the vehicle at present;
the second judgment unit (2) is used for judging whether the vehicle is in an automatic cruising state or not after judging that the vehicle has a potential danger condition at present;
a control unit (3) for exiting the auto-cruise state if the vehicle is currently in the auto-cruise state, otherwise controlling the auto-cruise state to be disabled.
7. The system of claim 6, wherein the potentially dangerous condition includes the vehicle colliding and the door being opened.
8. The system according to claim 7, characterized in that the first determination unit (1) is configured to determine that the vehicle is currently in a potentially dangerous situation if either of the vehicle collision and the door being opened occurs.
9. The system according to claim 8, characterized in that the first judgment unit (1) comprises:
the acceleration sensor is used for acquiring a current deceleration value of the vehicle;
and the comparison subunit is used for comparing the deceleration value with a preset threshold value, and if the deceleration value is greater than the preset threshold value, judging that the vehicle collides.
10. The system according to claim 8, characterized in that the first judgment unit (1) further comprises:
the vehicle door opening and closing sensor is used for acquiring opening or closing information of the vehicle door;
and the judging subunit is used for judging that the vehicle has a potential dangerous condition when the vehicle door is in an open state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010295570.3A CN111409634A (en) | 2020-04-15 | 2020-04-15 | Method and system for improving safety of automatic cruise system of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010295570.3A CN111409634A (en) | 2020-04-15 | 2020-04-15 | Method and system for improving safety of automatic cruise system of vehicle |
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| CN111409634A true CN111409634A (en) | 2020-07-14 |
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| CN202010295570.3A Pending CN111409634A (en) | 2020-04-15 | 2020-04-15 | Method and system for improving safety of automatic cruise system of vehicle |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000118264A (en) * | 1998-10-16 | 2000-04-25 | Honda Motor Co Ltd | Automatic cruise controller |
| CN102673505A (en) * | 2012-05-09 | 2012-09-19 | 浙江吉利汽车研究院有限公司杭州分公司 | Safety dealing system and method for vehicle collision |
| CN106218639A (en) * | 2016-07-20 | 2016-12-14 | 百度在线网络技术（北京）有限公司 | Automatic driving vehicle, for the method and apparatus that controls automatic driving vehicle |
| CN109910636A (en) * | 2019-03-29 | 2019-06-21 | 深圳猛犸电动科技有限公司 | A kind of control method of electric vehicle, device and electric vehicle |
| CN110329251A (en) * | 2019-07-24 | 2019-10-15 | 江西江铃集团新能源汽车有限公司 | Vehicle collision avoidance braking method and system |
-
2020
- 2020-04-15 CN CN202010295570.3A patent/CN111409634A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000118264A (en) * | 1998-10-16 | 2000-04-25 | Honda Motor Co Ltd | Automatic cruise controller |
| CN102673505A (en) * | 2012-05-09 | 2012-09-19 | 浙江吉利汽车研究院有限公司杭州分公司 | Safety dealing system and method for vehicle collision |
| CN106218639A (en) * | 2016-07-20 | 2016-12-14 | 百度在线网络技术（北京）有限公司 | Automatic driving vehicle, for the method and apparatus that controls automatic driving vehicle |
| CN109910636A (en) * | 2019-03-29 | 2019-06-21 | 深圳猛犸电动科技有限公司 | A kind of control method of electric vehicle, device and electric vehicle |
| CN110329251A (en) * | 2019-07-24 | 2019-10-15 | 江西江铃集团新能源汽车有限公司 | Vehicle collision avoidance braking method and system |
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Application publication date: 20200714 |