CN112937527A - Intelligent adjusting system and method for automobile turning - Google Patents
Intelligent adjusting system and method for automobile turning Download PDFInfo
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- CN112937527A CN112937527A CN202110273184.9A CN202110273184A CN112937527A CN 112937527 A CN112937527 A CN 112937527A CN 202110273184 A CN202110273184 A CN 202110273184A CN 112937527 A CN112937527 A CN 112937527A
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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
- B60T8/1755—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
- B60T8/17551—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve determining control parameters related to vehicle stability used in the regulation, e.g. by calculations involving measured or detected parameters
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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
- B60T8/1755—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
- B60T8/17555—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve specially adapted for enhancing driver or passenger comfort, e.g. soft intervention or pre-actuation strategies
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- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses an intelligent adjusting system and method for automobile turning. The system comprises: the control module, the seat control module and the vehicle body electronic stability control module; the vehicle body electronic stability control module collects current running information of a vehicle and sends the current running information to the control module; the seat control module collects weight information of a driver and sends the weight information to the control module; the control module determines the lateral centrifugal force of a driver according to the weight information when detecting that the driving state is a high-speed turning state according to the current driving information, and determines a control signal to send to the electronic stability control module of the vehicle body according to the weight information when the lateral centrifugal force reaches a preset threshold value; and the electronic stability control module of the vehicle body adjusts the braking force according to the control signal. The method has the advantages that driving information and driver weight information are collected, lateral centrifugal force is identified, when the lateral centrifugal force exceeds a threshold value, different braking forces are output according to the weight of a driver, the speed of the vehicle is reduced, and driving safety and comfort are improved.
Description
Technical Field
The invention relates to the technical field of intelligent automobiles, in particular to an intelligent automobile turning adjusting system and method.
Background
Along with the continuous improvement of car intelligent degree, the consumer also more and more high to the safety and the travelling comfort requirement of car, when whole car is crossed the turn with the very fast speed of a motor vehicle, the driver receives whole car side direction centrifugal force to influence can follow the big radian slope, influences driving safety nature and travelling comfort.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide an intelligent automobile turning adjusting system and method, and aims to solve the technical problem that when the whole automobile is bent at a higher speed, a driver is greatly inclined, and the driving safety and comfort are affected.
In order to achieve the above object, the present invention provides an intelligent adjustment system for vehicle turning, comprising: the electronic stability control system comprises a control module, a seat control module and a vehicle body electronic stability control module, wherein the seat control module and the vehicle body electronic stability control module are connected with the control module;
the electronic stability control module of the vehicle body is used for acquiring the current driving information of the vehicle and sending the current driving information to the control module;
the seat control module is used for collecting weight information of a driver and sending the weight information to the control module;
the control module is used for determining a driving state according to the current driving information, determining the lateral centrifugal force of the driver according to the weight information when the driving state is detected to be a high-speed turning state, determining a control signal according to the weight information when the lateral centrifugal force reaches a preset threshold value, and sending the control signal to the electronic stability control module of the vehicle body;
and the electronic stability control module of the vehicle body is also used for adjusting the braking force according to the control signal.
Optionally, the intelligent automobile turning adjustment system further includes: a backrest air cushion and a cushion right side air cushion;
the control module is further used for determining a current turning direction according to the current running information, and sending a first control instruction to the seat control module when the current turning direction is left turning;
the seat control module is further used for inflating the backrest air cushion and the cushion right side air cushion according to the first control instruction.
Optionally, the intelligent automobile turning adjustment system further includes: a cushion left air cushion;
the control module is further used for sending a second control instruction to the seat control module when the current turning direction is a right turn;
the seat control module is further used for inflating the backrest air cushion and the cushion left side air cushion according to the second control instruction.
Optionally, the intelligent automobile turning adjustment system further includes: an angular millimeter wave radar;
the angle millimeter wave radar is used for acquiring the distance, the relative speed and the relative angle between the angle millimeter wave radar and a rear vehicle and sending the distance, the relative speed and the relative angle to the control module;
the control module is further used for determining collision time according to the distance, the relative speed and the relative angle, and sending the control signal to the vehicle body electronic stability control module when the collision time is larger than or equal to preset safe time.
Optionally, the control module is further configured to adjust the control signal according to the collision time when the collision time is less than the preset safe time, so as to obtain an adjusted control signal, and send the adjusted control signal to the vehicle body electronic stability control module.
Optionally, the control module is further configured to, when the collision time is less than the preset safety time, look up corresponding braking force adjustment information from a preset relation table according to the collision time, and obtain an adjusted control signal according to the braking force adjustment information and the control signal.
Optionally, the intelligent automobile turning adjustment system further includes: a large screen soft switch;
the large-screen soft switch is used for receiving a starting control signal input by a user and sending the starting control signal to the control module;
the control module is also used for sending a connection signal to the vehicle body electronic stability control module and the seat control module when receiving the starting control signal;
the electronic stability control module of the vehicle body is also used for collecting the current running information of the vehicle and sending the current running information to the control module when receiving the connection signal;
the seat control module is further used for collecting weight information of a driver when the connection signal is received, and sending the weight information to the control module.
In addition, in order to achieve the above object, the present invention further provides an intelligent automobile turning adjustment method, which is applied to the intelligent automobile turning adjustment system described above, and the intelligent automobile turning adjustment system includes: the electronic stability control system comprises a control module, a seat control module and a vehicle body electronic stability control module, wherein the seat control module and the vehicle body electronic stability control module are connected with the control module;
the intelligent automobile turning adjusting method comprises the following steps:
the electronic stability control module of the vehicle body collects the current running information of the vehicle and sends the current running information to the control module;
the seat control module collects weight information of a driver and sends the weight information to the control module;
the control module determines a driving state according to the current driving information, determines the lateral centrifugal force of the driver according to the weight information when detecting that the driving state is a high-speed turning state, determines a control signal according to the weight information when the lateral centrifugal force reaches a preset threshold value, and sends the control signal to the electronic stability control module of the vehicle body;
and the vehicle body electronic stability control module adjusts the braking force according to the control signal.
Optionally, the intelligent automobile turning adjustment system further includes: a backrest air cushion and a cushion right side air cushion;
after the electronic stability control module of the vehicle body adjusts the braking force according to the control signal, the method further comprises the following steps:
the control module determines a current turning direction according to the current driving information, and sends a first control instruction to the seat control module when the current turning direction is left turning;
and the seat control module inflates the backrest air cushion and the cushion right side air cushion according to the first control instruction.
Optionally, the intelligent automobile turning adjustment system further includes: a cushion left air cushion;
after the control module determines a current turning direction according to the current driving information, the method further includes:
the control module sends a second control instruction to the seat control module when the current turning direction is right turning;
and the seat control module inflates the backrest air cushion and the cushion left side air cushion according to the second control instruction.
The invention provides an intelligent adjusting system for automobile turning, which comprises: the control module is connected with the seat control module and the vehicle body electronic stability control module; the vehicle body electronic stability control module collects current driving information of a vehicle and sends the current driving information to the control module; the seat control module collects weight information of a driver and sends the weight information to the control module; the control module determines a driving state according to the current driving information, determines the lateral centrifugal force of a driver according to the weight information when detecting that the driving state is a high-speed turning state, determines a control signal according to the weight information when the lateral centrifugal force reaches a preset threshold value, and sends the control signal to the electronic stability control module of the vehicle body; and the electronic stability control module of the vehicle body adjusts the braking force according to the control signal. Through above-mentioned mode, gather information of traveling and driver weight information, intelligent recognition side direction centrifugal force when side direction centrifugal force surpasss the threshold value, according to driver weight output brake force, the speed of a motor vehicle is reduced, has improved driving safety and travelling comfort, according to different weight, exports different brake force, promotes whole car intelligence. The technical problem that when the whole vehicle is bent at a faster speed, a driver is greatly inclined to influence driving safety and comfort is solved.
Drawings
FIG. 1 is a block diagram of a first embodiment of an intelligent turning adjustment system for a vehicle according to the present invention;
FIG. 2 is a block diagram illustrating a second embodiment of an intelligent turning adjustment system for a vehicle according to the present invention;
fig. 3 is a schematic flow chart of a first embodiment of an intelligent adjusting method for vehicle turning according to the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
50 | Cushion right |
| 20 | |
60 | Cushion |
| 30 | Electronic stability control module for |
70 | Angular |
| 40 | |
80 | Large screen soft switch |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An embodiment of the present invention provides an intelligent adjustment system for vehicle turning, and referring to fig. 1, fig. 1 is a structural block diagram of a first embodiment of the intelligent adjustment system for vehicle turning according to the present invention.
In this embodiment, the intelligent adjustment system for automobile turning includes: the control system comprises a control module 10, a seat control module 20 and a vehicle body electronic stability control module 30, wherein the seat control module 20 and the vehicle body electronic stability control module 30 are connected with the control module 10;
the vehicle body electronic stability control module 30 is configured to collect current driving information of a vehicle, and send the current driving information to the control module 10. In the present embodiment, the vehicle body Electronic Stability control module 30(Electronic Stability Program, ESP) and the seat control module 20 communicate with the control module 10 through the CAN bus, the ESP is connected with a lateral acceleration sensor, a yaw rate sensor, and a wheel speed sensor, the lateral acceleration sensor, the yaw rate sensor, and the wheel speed sensor are mounted on the vehicle, and acquire lateral acceleration, yaw rate, and vehicle speed signals of the entire vehicle and transmit the signals to the ESP, and the ESP transmits current traveling information such as the lateral acceleration, yaw rate, and vehicle speed signals of the entire vehicle to the control module 10.
The seat control module 20 is configured to collect weight information of a driver, and send the weight information to the control module 10. In this embodiment, the seat control module 20 is connected to a weight sensor, the weight sensor is installed inside the driver seat, and is used for collecting the weight information of the driver and sending the weight information to the seat control module 20, and the seat control module 20 sends the weight information to the control module 10.
The control module 10 is configured to determine a driving state according to the current driving information, determine a lateral centrifugal force of the driver according to the weight information when it is detected that the driving state is a high-speed turning state, determine a control signal according to the weight information when the lateral centrifugal force reaches a preset threshold, and send the control signal to the vehicle body electronic stability control module 30. In this embodiment, the Control module 10 may be a vehicle Control Unit vcu (vehicle Control Unit) on the new energy vehicle, may also be an electronic Control Unit ecu (electronic Control Unit) on the fuel vehicle, and may also be a Micro Control Unit (MCU) provided separately, which is not limited in this embodiment.
It can be understood that, the control module 10 determines whether the current vehicle is in a high-speed state according to the vehicle speed signal, and determines whether the current vehicle is in a turning state according to the lateral acceleration and the yaw rate, where a specific process may be that when it is detected that the vehicle speed reaches a preset speed measurement and a product of the lateral acceleration and the yaw rate reaches a preset turning threshold, it determines that the driving state of the current vehicle is in a high-speed turning state.
The control module 10 determines a lateral centrifugal force according to the weight information, the lateral acceleration, the yaw rate, and the vehicle speed signal, and calculates the lateral centrifugal force according to the following equations (1) and (2):
f ═ m ═ alpha formula (1)
α ═ V ═ ω formula (2)
Wherein F is a lateral centrifugal force, m is driver weight information, alpha is a lateral acceleration, V is a vehicle speed, and omega is a yaw angular velocity.
It should be understood that the preset threshold is set according to actual conditions, a comfortable lateral centrifugal force can be recorded through manual sensing during the calibration process, the maximum comfortable lateral centrifugal force is selected as the preset threshold, the control signal includes braking force information, and the speed is reduced to reduce the lateral centrifugal force, and since the inclination amplitude is larger for a heavy driver in the same turning situation, the control module 10 outputs a control signal including a larger braking force to the body electronic stability control module 30 when facing the heavy driver compared to a light driver.
In a specific implementation, the control signal may be determined according to the weight information in two ways, the first way being: the control module 10 searches corresponding braking force information in a relation table stored in a preset storage unit according to the weight information, packages the braking force information into a control signal and sends the control signal to the electronic stability control module 30 of the vehicle body, the relation table is determined by calibration, and after the speed is reduced through the braking force corresponding to the weight information, the comfort level of a driver is not influenced by the lateral centrifugal force after the vehicle speed is reduced; the second way is: the control module 10 determines a first lateral acceleration through formula (1) according to a preset threshold and weight information, determines a desired vehicle speed through formula (2) according to the first lateral acceleration and a yaw rate, determines braking force information according to a current vehicle speed and the desired vehicle speed, and packages the braking force information into a control signal.
The vehicle body electronic stability control module 30 is further configured to adjust the braking force according to the control signal. In this embodiment, the electronic stability control module 30 determines the braking force information according to the control signal, and controls the execution unit to adjust the braking force according to the braking force information, so as to realize deceleration and reduce lateral centrifugal force.
The car intelligent regulation system that this embodiment provided includes: the control system comprises a control module 10, a seat control module 20 and a vehicle body electronic stability control module 30, wherein the seat control module 20 and the vehicle body electronic stability control module 30 are connected with the control module 10; the electronic stability control module 30 of the vehicle body collects the current driving information of the vehicle and sends the current driving information to the control module 10; the seat control module 20 collects weight information of a driver and sends the weight information to the control module 10; the control module 10 determines a driving state according to the current driving information, determines a lateral centrifugal force of the driver according to the weight information when detecting that the driving state is a high-speed turning state, determines a control signal according to the weight information when the lateral centrifugal force reaches a preset threshold value, and sends the control signal to the electronic stability control module 30 of the vehicle body; the vehicle body electronic stability control module 30 adjusts the braking force according to the control signal. Through above-mentioned mode, gather information of traveling and driver weight information, intelligent recognition side direction centrifugal force when side direction centrifugal force surpasss the threshold value, according to driver weight output brake force, the speed of a motor vehicle is reduced, has improved driving safety and travelling comfort, according to different weight, exports different brake force, promotes whole car intelligence. The technical problem that when the whole vehicle is bent at a faster speed, a driver is greatly inclined to influence driving safety and comfort is solved.
Referring to fig. 2, fig. 2 is a block diagram illustrating a second embodiment of an intelligent turning adjustment system for a vehicle according to the present invention.
Based on the above-mentioned first embodiment, this embodiment car intelligent regulation system that turns still includes: a back cushion 40 and a cushion right cushion 50;
the control module 10 is further configured to determine a current turning direction according to the current driving information, and send a first control instruction to the seat control module 20 when the current turning direction is a left turn. In this embodiment, the control module 10 determines the current turning direction according to the yaw rate information, where the turning direction may be left-turning and right-turning, and when turning left at a high speed, the driver is offset to the right and needs the right seat to provide the supporting force.
The seat control module 20 is further configured to inflate the back cushion 40 and the cushion right cushion 50 according to the first control instruction. In this embodiment, the first control command includes execution unit information and command information, the seat control module 20 is connected to motors for inflating the backrest cushion 40 and the cushion right side cushion 50, and two motors may be provided for inflating the backrest cushion 40 and the cushion right side cushion 50, respectively, to increase the right side supporting force. The control module 10, upon detecting that the vehicle is in a straight-ahead motion, sends a third control command to the seat control module 20 to cause the seat control module 20 to control the motors to deflate the back cushion air cushion 40 and the cushion right cushion air cushion 50.
The intelligent automobile turning adjusting system further comprises: a cushion left air cushion 60;
the control module 10 is further configured to send a second control instruction to the seat control module 20 when the current turning direction is a right turn. In this embodiment, at high speed right turn, the driver is offset to the left, requiring the left seat to provide support.
The seat control module 20 is further configured to inflate the backrest cushion 40 and the cushion left cushion 60 according to the second control instruction. In this embodiment, the second control instruction includes execution unit information and instruction information, the seat control module 20 is connected with motors for inflating the backrest cushion 40, the cushion right side cushion 50, and the cushion left side cushion 60, and three motors may be provided for inflating the backrest cushion 40, the cushion right side cushion 50, and the cushion left side cushion 60, respectively, and when detecting that the vehicle is turning right at a high speed, the backrest cushion 40 and the cushion left side cushion 60 are inflated, so as to increase the left side supporting force. The control module 10, upon detecting that the vehicle is moving straight, sends a fourth control command to the seat control module 20 to cause the seat control module 20 to control the motors to deflate the back cushion air cushion 40 and the cushion left cushion air cushion 60.
The intelligent automobile turning adjusting system further comprises: an angular millimeter wave radar 70;
the angle millimeter wave radar 70 is configured to collect a distance, a relative speed, and a relative angle between the vehicle and a rear vehicle, and send the distance, the relative speed, and the relative angle to the control module 10. In this embodiment, in order to avoid a sudden speed drop, a rear vehicle and the host vehicle collide with each other, the angle millimeter wave radar 70 on the vehicle detects the distance, the relative speed, and the relative angle between the rear vehicle and the host vehicle in real time, in a specific implementation, the master/slave angle millimeter wave radar 70 is configured to perform data acquisition, and specific detection objects are: the distance between the vehicle and the vehicle is 70m (vehicle) and within, 10m (small electric motorcycle and bicycle) and within, the relative speed range is-200 to +200km/h, and the relative angle range is 120 degrees (horizontal) and 3 multiplied by 10 degrees (pitching).
The control module 10 is further configured to determine a collision time according to the distance, the relative speed, and the relative angle, and send the control signal to the vehicle body electronic stability control module 30 when the collision time is greater than or equal to a preset safe time. In this embodiment, the control module 10 calculates the collision time according to the distance, the relative speed, and the relative angle, and the specific process may include: and determining the moving distance between the two angles according to the relative angle and the distance, taking the distance as the hypotenuse of the right triangle, taking the opposite angle as one of the angles, calculating to obtain the sum of the two right-angle sides as the moving distance, and calculating the collision time according to the moving distance and the relative speed. The preset safe time can be set according to actual conditions, the preset safe time can be stored in the main corner millimeter wave radar 70, the main corner millimeter wave radar 70 sends the preset safe time to the control module 10, the control module 10 compares the collision time with the preset safe time, when the collision time is greater than or equal to the preset safe time, the control signal is sent to the vehicle body electronic stability control module 30, the braking force is adjusted, when the collision time is less than the preset safe time, the control signal is not sent to the vehicle body electronic stability control module 30, the collision information and the control signal can also be sent to the vehicle body electronic stability control module 30, and when the vehicle body electronic stability control module 30 receives the collision information, the braking force is not adjusted.
The control module 10 is further configured to adjust the control signal according to the collision time when the collision time is less than the preset safe time, obtain an adjusted control signal, and send the adjusted control signal to the vehicle body electronic stability control module 30. In the embodiment, in order to avoid a sudden speed drop, a rear vehicle and the host vehicle collide with each other, when the collision time is less than a preset safe time, the control signal is adjusted, the control signal includes braking force information, the braking force can be appropriately adjusted because the distance between the subsequent incoming vehicle and the host vehicle is not large, for example, the braking force information in the control signal is the deceleration of 1km/h, the braking force information is adjusted according to the collision time, and the braking force information in the adjusted control signal is the deceleration of 0.2 km/h.
The control module 10 is further configured to, when the collision time is less than the preset safety time, look up corresponding braking force adjustment information from a preset relation table according to the collision time, and obtain an adjusted control signal according to the braking force adjustment information and the control signal. In this embodiment, the preset relationship table stores the collision time and the braking force adjustment information corresponding to each other, and the preset relationship table may be set in advance according to the calibration condition.
The intelligent automobile turning adjusting system further comprises: a large screen soft switch 80;
the large-screen soft switch 80 is configured to receive an opening control signal input by a user, and send the opening control signal to the control module 10. In this embodiment, according to driver's demand, can open or close car intelligent regulation function of turning through the soft switch in the vehicle large screen. The large-screen soft switch 80 sends a command to turn off the function to the control module 10 when receiving a turn-off control signal input by the user.
The control module 10 is further configured to send a connection signal to the vehicle body electronic stability control module 30 and the seat control module 20 when receiving the start control signal. In this embodiment, when the control module 10 is a micro control unit that is separately provided, the start control signal may be power supplied to the micro control unit, when the micro control unit is successfully powered, the micro control unit is connected to the vehicle body electronic stability control module 30 and the seat control module 20, when the control module 10 is a VCU or an ECU that operates another function, the start control signal may be a function start signal, and when the VCU or the ECU receives the function start signal, the VCU or the ECU is connected to the vehicle body electronic stability control module 30 and the seat control module 20.
The vehicle body electronic stability control module 30 is further configured to collect current driving information of the vehicle when receiving the connection signal, and send the current driving information to the control module 10. In this embodiment, after the connection between the vehicle body electronic stability control module 30 and the control module 10 is established, the current driving information of the vehicle is collected in real time and sent to the control module 10.
The seat control module 20 is further configured to collect weight information of the driver when receiving the connection signal, and send the weight information to the control module 10. In this embodiment, after the seat control module 20 is connected to the control module 10, the weight information of the driver is collected and sent to the control module 10.
The embodiment outputs braking force according to the weight of a driver, and increases the lateral supporting force of the backrest and the seat cushion of the driver after reducing the speed of the vehicle, thereby improving the driving comfort. And the safe distance between the rear vehicle and the vehicle is considered, so that rear-end collision with the rear vehicle caused by rapid deceleration is avoided, the distance, the relative speed and the relative angle between the rear vehicle and the vehicle are detected in real time, the control signal is adjusted, the safe distance between the two vehicles is ensured, and the safety is improved.
Referring to fig. 3, fig. 3 is a block diagram illustrating a first embodiment of an intelligent adjusting device for vehicle turning according to the present invention.
As shown in fig. 3, the method for intelligently adjusting a turning of an automobile according to the embodiment of the present invention is applied to the above-mentioned system for intelligently adjusting a turning of an automobile, and the system for intelligently adjusting a turning of an automobile includes: the electronic stability control system comprises a control module, a seat control module and a vehicle body electronic stability control module, wherein the seat control module and the vehicle body electronic stability control module are connected with the control module;
the intelligent automobile turning adjusting method comprises the following steps:
step S10: the electronic stability control module of the vehicle body collects the current running information of the vehicle and sends the current running information to the control module.
It CAN be understood that an Electronic Stability Program (ESP) of the vehicle body and a seat control module communicate with the control module through a CAN bus, the ESP is connected with a lateral acceleration sensor, a yaw rate sensor and a wheel speed sensor, the lateral acceleration sensor, the yaw rate sensor and the wheel speed sensor are mounted on the vehicle, signals of lateral acceleration, yaw rate and vehicle speed of the whole vehicle are collected and sent to the ESP, and the ESP sends current running information such as signals of lateral acceleration, yaw rate and vehicle speed of the whole vehicle to the control module.
Step S20: the seat control module collects weight information of a driver and sends the weight information to the control module.
It should be noted that the seat control module is connected with a weight sensor, the weight sensor is installed inside the driver seat, and is used for collecting the weight information of the driver and sending the weight information to the seat control module, and the seat control module sends the weight information to the control module.
Step S30: the control module determines a driving state according to the current driving information, determines the lateral centrifugal force of the driver according to the weight information when detecting that the driving state is a high-speed turning state, determines a control signal according to the weight information when the lateral centrifugal force reaches a preset threshold value, and sends the control signal to the electronic stability control module of the vehicle body;
it should be understood that the Control module may be a vehicle Control Unit vcu (vehicle Control Unit) on the new energy vehicle, may also be an electronic Control Unit ecu (electronic Control Unit) on the fuel vehicle, and may also be a Micro Control Unit (MCU) provided separately, which is not limited in this embodiment.
It can be understood that, the control module determines whether the current vehicle is in a high-speed state according to the vehicle speed signal, and determines whether the current vehicle is in a turning state according to the lateral acceleration and the yaw rate, where the specific process may be that, when it is detected that the vehicle speed reaches a preset speed measurement and the product of the lateral acceleration and the yaw rate reaches a preset turning threshold, it is determined that the driving state of the current vehicle is in a high-speed turning state.
The control module confirms the lateral centrifugal force according to the weight information, the lateral acceleration, the yaw rate and the vehicle speed signal, and calculates the lateral centrifugal force according to the formula (1) and the formula (2):
f ═ m ═ alpha formula (1)
α ═ V ═ ω formula (2)
Wherein F is a lateral centrifugal force, m is driver weight information, alpha is a lateral acceleration, V is a vehicle speed, and omega is a yaw angular velocity.
It should be understood that the preset threshold is set according to actual conditions, comfortable lateral centrifugal force can be recorded through manual sensing in the calibration process, the maximum comfortable lateral centrifugal force is selected as the preset threshold, the control signal contains braking force information, and the speed is reduced to reduce the lateral centrifugal force.
In a specific implementation, the control signal may be determined according to the weight information in two ways, the first way being: the control module searches corresponding braking force information in a relation table stored in a preset storage unit according to the weight information, packages the braking force information into a control signal and sends the control signal to the electronic stability control module of the vehicle body, the relation table is determined by calibration, and after the speed is reduced through the braking force corresponding to the weight information, the comfort level of a driver is not influenced by the lateral centrifugal force after the vehicle speed is reduced; the second way is: the control module determines a first lateral acceleration through a formula (1) according to a preset threshold and weight information, determines a desired vehicle speed through a formula (2) according to the first lateral acceleration and a yaw angular speed, determines braking force information according to the current vehicle speed and the desired vehicle speed, and packages the braking force information into a control signal.
Step S40: and the vehicle body electronic stability control module adjusts the braking force according to the control signal.
It should be noted that the electronic stability control module of the vehicle body determines the braking force information according to the control signal, and controls the execution unit to adjust the braking force according to the braking force information, so as to realize deceleration and reduce lateral centrifugal force, and the ESP immediately intervenes the engine output torque and the brake when receiving the control signal, thereby greatly improving the safety of the vehicle.
It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in a specific application, a person skilled in the art may set the technical solution as needed, and the present invention is not limited thereto.
The car intelligent regulation system that this embodiment provided includes: the control module is connected with the seat control module and the vehicle body electronic stability control module; the intelligent automobile turning adjusting method comprises the following steps: the vehicle body electronic stability control module collects current driving information of a vehicle and sends the current driving information to the control module; the seat control module collects weight information of a driver and sends the weight information to the control module; the control module determines a driving state according to the current driving information, determines the lateral centrifugal force of a driver according to the weight information when detecting that the driving state is a high-speed turning state, determines a control signal according to the weight information when the lateral centrifugal force reaches a preset threshold value, and sends the control signal to the electronic stability control module of the vehicle body; and the electronic stability control module of the vehicle body adjusts the braking force according to the control signal. Through above-mentioned mode, gather information of traveling and driver weight information, intelligent recognition side direction centrifugal force when side direction centrifugal force surpasss the threshold value, according to driver weight output brake force, the speed of a motor vehicle is reduced, has improved driving safety and travelling comfort, according to different weight, exports different brake force, promotes whole car intelligence. The technical problem that when the whole vehicle is bent at a faster speed, a driver is greatly inclined to influence driving safety and comfort is solved.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
In addition, the technical details that are not described in detail in this embodiment may be referred to the automobile turning intelligent adjustment system provided in any embodiment of the present invention, and are not described herein again.
In one embodiment, the intelligent tuning system for automobile turning further comprises: a backrest air cushion and a cushion right side air cushion;
after the step S40, the method further includes:
the control module determines the current turning direction according to the current driving information, and sends a first control instruction to the seat control module when the current turning direction is left turning.
It can be appreciated that the control module determines the current turning direction from the yaw rate information, which may be left and right turns, and at high speed left turns, the driver is offset to the right, requiring the right seat to provide support.
And the seat control module inflates the backrest air cushion and the cushion right side air cushion according to the first control instruction.
It should be noted that the first control instruction includes execution unit information and instruction information, the seat control module is connected with a motor for inflating the backrest air cushion and the cushion right side air cushion, and two motors may be provided to inflate the backrest air cushion and the cushion right side air cushion respectively, so as to increase the right side supporting force. When the control module detects that the vehicle is in a straight-ahead driving state, a third control instruction is sent to the seat control module, so that the seat control module controls the motor to deflate the backrest air cushion and the cushion right side air cushion.
In one embodiment, the intelligent tuning system for automobile turning further comprises: a cushion left air cushion;
after the control module determines a current turning direction according to the current driving information, the method further includes:
the control module sends a second control instruction to the seat control module when the current turning direction is right turning;
it will be appreciated that at high speed right turns, the driver is offset to the left, requiring the left side seat to provide support.
And the seat control module inflates the backrest air cushion and the cushion left side air cushion according to the second control instruction.
It should be noted that the second control instruction includes execution unit information and instruction information, and the seat control module is connected with the motor that inflates back air cushion, cushion right side air cushion and cushion left side air cushion, can set up three motor and inflate back air cushion, cushion right side air cushion and cushion left side air cushion respectively, when detecting that the vehicle is in high-speed right turn, inflate back air cushion and cushion left side air cushion, increase left side holding power. When detecting that the vehicle is in a straight-ahead driving state, the control module sends a fourth control instruction to the seat control module, so that the seat control module controls the motor to deflate the backrest air cushion and the cushion left side air cushion.
In one embodiment, the intelligent tuning system for automobile turning further comprises: an angular millimeter wave radar;
before the control module sends the control signal to the electronic vehicle body stability control module, the method further comprises the following steps:
the angle millimeter wave radar acquires the distance, the relative speed and the relative angle between the angle millimeter wave radar and a rear coming vehicle and sends the distance, the relative speed and the relative angle to the control module;
the control module determines collision time according to the distance, the relative speed and the relative angle, and sends the control signal to the vehicle body electronic stability control module when the collision time is greater than or equal to preset safe time.
In one embodiment, after the control module determines a collision time based on the distance, the relative velocity, and the relative angle, the method further comprises:
and when the collision time is less than the preset safety time, the control module adjusts the control signal according to the collision time to obtain an adjusted control signal, and sends the adjusted control signal to the vehicle body electronic stability control module.
In an embodiment, when the collision time is less than the preset safe time, the control module adjusts the control signal according to the collision time to obtain an adjusted control signal, including:
and when the collision time is less than the preset safety time, the control module searches corresponding braking force adjustment information from a preset relation table according to the collision time, and obtains an adjusted control signal according to the braking force adjustment information and the control signal.
In one embodiment, the intelligent tuning system for automobile turning further comprises: a large screen soft switch;
before the step S10, the method further includes:
the large-screen soft switch receives a starting control signal input by a user and sends the starting control signal to the control module;
when the control module receives the starting control signal, a connecting signal is sent to the vehicle body electronic stability control module and the seat control module;
the step S10 includes:
when the electronic stability control module of the vehicle body receives the connection signal, the current driving information of the vehicle is collected, and the current driving information is sent to the control module;
the step S20 includes:
when receiving the connection signal, the seat control module collects weight information of a driver and sends the weight information to the control module.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g. Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g. a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides an automobile turning intelligent adjustment system which characterized in that, automobile turning intelligent adjustment system includes: the electronic stability control system comprises a control module, a seat control module and a vehicle body electronic stability control module, wherein the seat control module and the vehicle body electronic stability control module are connected with the control module;
the electronic stability control module of the vehicle body is used for acquiring the current driving information of the vehicle and sending the current driving information to the control module;
the seat control module is used for collecting weight information of a driver and sending the weight information to the control module;
the control module is used for determining a driving state according to the current driving information, determining the lateral centrifugal force of the driver according to the weight information when the driving state is detected to be a high-speed turning state, determining a control signal according to the weight information when the lateral centrifugal force reaches a preset threshold value, and sending the control signal to the electronic stability control module of the vehicle body;
and the electronic stability control module of the vehicle body is also used for adjusting the braking force according to the control signal.
2. The vehicle turning intelligent adjustment system according to claim 1, further comprising: a backrest air cushion and a cushion right side air cushion;
the control module is further used for determining a current turning direction according to the current running information, and sending a first control instruction to the seat control module when the current turning direction is left turning;
the seat control module is further used for inflating the backrest air cushion and the cushion right side air cushion according to the first control instruction.
3. The vehicle turning intelligent adjustment system according to claim 2, further comprising: a cushion left air cushion;
the control module is further used for sending a second control instruction to the seat control module when the current turning direction is a right turn;
the seat control module is further used for inflating the backrest air cushion and the cushion left side air cushion according to the second control instruction.
4. The vehicle turning intelligent adjustment system according to claim 1, further comprising: an angular millimeter wave radar;
the angle millimeter wave radar is used for acquiring the distance, the relative speed and the relative angle between the angle millimeter wave radar and a rear vehicle and sending the distance, the relative speed and the relative angle to the control module;
the control module is further used for determining collision time according to the distance, the relative speed and the relative angle, and sending the control signal to the vehicle body electronic stability control module when the collision time is larger than or equal to preset safe time.
5. The intelligent adjusting system for automobile turning according to claim 4, wherein the control module is further configured to adjust the control signal according to the collision time when the collision time is less than the preset safe time, so as to obtain an adjusted control signal, and send the adjusted control signal to the electronic stability control module of the automobile body.
6. The system for intelligently adjusting turning of a vehicle as claimed in claim 5, wherein the control module is further configured to, when the collision time is less than the preset safe time, look up corresponding braking force adjustment information from a preset relationship table according to the collision time, and obtain the adjusted control signal according to the braking force adjustment information and the control signal.
7. The vehicle turning intelligent adjustment system according to any one of claims 1 to 6, further comprising: a large screen soft switch;
the large-screen soft switch is used for receiving a starting control signal input by a user and sending the starting control signal to the control module;
the control module is also used for sending a connection signal to the vehicle body electronic stability control module and the seat control module when receiving the starting control signal;
the electronic stability control module of the vehicle body is also used for collecting the current running information of the vehicle and sending the current running information to the control module when receiving the connection signal;
the seat control module is further used for collecting weight information of a driver when the connection signal is received, and sending the weight information to the control module.
8. An automobile turning intelligent adjustment method, characterized in that the automobile turning intelligent adjustment method is applied to the automobile turning intelligent adjustment system according to any one of claims 1-7, and the automobile turning intelligent adjustment system comprises: the electronic stability control system comprises a control module, a seat control module and a vehicle body electronic stability control module, wherein the seat control module and the vehicle body electronic stability control module are connected with the control module;
the intelligent automobile turning adjusting method comprises the following steps:
the electronic stability control module of the vehicle body collects the current running information of the vehicle and sends the current running information to the control module;
the seat control module collects weight information of a driver and sends the weight information to the control module;
the control module determines a driving state according to the current driving information, determines the lateral centrifugal force of the driver according to the weight information when detecting that the driving state is a high-speed turning state, determines a control signal according to the weight information when the lateral centrifugal force reaches a preset threshold value, and sends the control signal to the electronic stability control module of the vehicle body;
and the vehicle body electronic stability control module adjusts the braking force according to the control signal.
9. The intelligent automobile turning adjustment method according to claim 8, wherein the intelligent automobile turning adjustment system further comprises: a backrest air cushion and a cushion right side air cushion;
after the electronic stability control module of the vehicle body adjusts the braking force according to the control signal, the method further comprises the following steps:
the control module determines a current turning direction according to the current driving information, and sends a first control instruction to the seat control module when the current turning direction is left turning;
and the seat control module inflates the backrest air cushion and the cushion right side air cushion according to the first control instruction.
10. The intelligent automobile turning adjustment method according to claim 9, wherein the intelligent automobile turning adjustment system further comprises: a cushion left air cushion;
after the control module determines a current turning direction according to the current driving information, the method further includes:
the control module sends a second control instruction to the seat control module when the current turning direction is right turning;
and the seat control module inflates the backrest air cushion and the cushion left side air cushion according to the second control instruction.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368325A (en) * | 2022-01-18 | 2022-04-19 | 东风商用车有限公司 | Automatic seat adjusting system and method |
| CN114771654A (en) * | 2022-04-07 | 2022-07-22 | 东风柳州汽车有限公司 | Automobile steering control method and device, terminal equipment and storage medium |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4989922A (en) * | 1988-11-23 | 1991-02-05 | Lucas Industries Public Limited Company | Method of anti-lock brake control for motorcycle vehicle |
| JPH03279063A (en) * | 1990-03-28 | 1991-12-10 | Nissan Motor Co Ltd | Vehicle turning behavior control device |
| JPH11304663A (en) * | 1998-04-24 | 1999-11-05 | Hino Motors Ltd | Estimation operation device of center-of-gravity height of vehicle |
| US20070150157A1 (en) * | 2005-12-09 | 2007-06-28 | Lee Yong H | Speed control method for vehicle approaching and traveling on a curve |
| US20090319127A1 (en) * | 2008-06-18 | 2009-12-24 | Gm Global Technology Operations, Inc. | Motor vehicle driver assisting method near the stability limit |
| JP2010247635A (en) * | 2009-04-15 | 2010-11-04 | Advics Co Ltd | Motion control device for vehicle |
| WO2012085997A1 (en) * | 2010-12-20 | 2012-06-28 | トヨタ自動車株式会社 | Vehicular steering control device |
| CN102556064A (en) * | 2010-10-29 | 2012-07-11 | 爱信精机株式会社 | Lateral motion control apparatus for a vehicle |
| US20140142830A1 (en) * | 2011-06-18 | 2014-05-22 | Daimler Ag | Motor Vehicle Having a Driver Assistance Unit |
| CN107578665A (en) * | 2017-10-11 | 2018-01-12 | 山东理工大学 | A kind of vehicle driving simulator based on magneticaction rolls sense generating means |
| CN108340911A (en) * | 2017-01-22 | 2018-07-31 | 长城汽车股份有限公司 | Control method, system and the vehicle of vehicle |
| CN108944910A (en) * | 2017-05-27 | 2018-12-07 | 长城汽车股份有限公司 | A kind of vehicle stable state intelligent control method and device |
| CN110329347A (en) * | 2019-07-03 | 2019-10-15 | 南京航空航天大学 | A kind of steering control system and its control method based on driver characteristics |
| CN111731244A (en) * | 2020-06-18 | 2020-10-02 | 东风汽车集团有限公司 | Brake control method for improving vehicle maneuverability |
-
2021
- 2021-03-12 CN CN202110273184.9A patent/CN112937527B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4989922A (en) * | 1988-11-23 | 1991-02-05 | Lucas Industries Public Limited Company | Method of anti-lock brake control for motorcycle vehicle |
| JPH03279063A (en) * | 1990-03-28 | 1991-12-10 | Nissan Motor Co Ltd | Vehicle turning behavior control device |
| JPH11304663A (en) * | 1998-04-24 | 1999-11-05 | Hino Motors Ltd | Estimation operation device of center-of-gravity height of vehicle |
| US20070150157A1 (en) * | 2005-12-09 | 2007-06-28 | Lee Yong H | Speed control method for vehicle approaching and traveling on a curve |
| US20090319127A1 (en) * | 2008-06-18 | 2009-12-24 | Gm Global Technology Operations, Inc. | Motor vehicle driver assisting method near the stability limit |
| JP2010247635A (en) * | 2009-04-15 | 2010-11-04 | Advics Co Ltd | Motion control device for vehicle |
| CN102556064A (en) * | 2010-10-29 | 2012-07-11 | 爱信精机株式会社 | Lateral motion control apparatus for a vehicle |
| WO2012085997A1 (en) * | 2010-12-20 | 2012-06-28 | トヨタ自動車株式会社 | Vehicular steering control device |
| US20140142830A1 (en) * | 2011-06-18 | 2014-05-22 | Daimler Ag | Motor Vehicle Having a Driver Assistance Unit |
| CN108340911A (en) * | 2017-01-22 | 2018-07-31 | 长城汽车股份有限公司 | Control method, system and the vehicle of vehicle |
| CN108944910A (en) * | 2017-05-27 | 2018-12-07 | 长城汽车股份有限公司 | A kind of vehicle stable state intelligent control method and device |
| CN107578665A (en) * | 2017-10-11 | 2018-01-12 | 山东理工大学 | A kind of vehicle driving simulator based on magneticaction rolls sense generating means |
| CN110329347A (en) * | 2019-07-03 | 2019-10-15 | 南京航空航天大学 | A kind of steering control system and its control method based on driver characteristics |
| CN111731244A (en) * | 2020-06-18 | 2020-10-02 | 东风汽车集团有限公司 | Brake control method for improving vehicle maneuverability |
Non-Patent Citations (3)
| Title |
|---|
| 秦刚等: "智能车转弯控制算法的仿真及分析", 《自动化技术与应用》 * |
| 谢忠明等: "客车高速发飘问题分析", 《客车技术与研究》 * |
| 魏强: "车辆纵向力与侧向力集成控制研究", 《中国优秀硕士学位论文全文数据库 (工程科技Ⅱ辑)》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368325A (en) * | 2022-01-18 | 2022-04-19 | 东风商用车有限公司 | Automatic seat adjusting system and method |
| CN114771654A (en) * | 2022-04-07 | 2022-07-22 | 东风柳州汽车有限公司 | Automobile steering control method and device, terminal equipment and storage medium |
| CN114771654B (en) * | 2022-04-07 | 2023-07-07 | 东风柳州汽车有限公司 | Control method and device for automobile steering, terminal equipment and storage medium |
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|---|---|
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