CN115320554A - Automatic parking method and system applied to commercial vehicle and vehicle - Google Patents
Automatic parking method and system applied to commercial vehicle and vehicle Download PDFInfo
- Publication number
- CN115320554A CN115320554A CN202211066333.5A CN202211066333A CN115320554A CN 115320554 A CN115320554 A CN 115320554A CN 202211066333 A CN202211066333 A CN 202211066333A CN 115320554 A CN115320554 A CN 115320554A
- Authority
- CN
- China
- Prior art keywords
- vehicle
- automatic parking
- vehicle speed
- information
- manual
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000005484 gravity Effects 0.000 claims abstract description 123
- 230000010354 integration Effects 0.000 abstract description 11
- 230000009471 action Effects 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 206010063385 Intellectualisation Diseases 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- 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
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
-
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
Abstract
The application discloses an automatic parking method and system applied to a commercial vehicle and the vehicle, and relates to the technical field of automatic parking, wherein the automatic parking method comprises the steps of collecting gravity information and vehicle speed information on a driver seat; when the gravity information and the vehicle speed information are judged to be smaller than a preset threshold value, sending a corresponding control instruction to a manual control electromagnetic integrated valve in a braking system; and the manual control electromagnetic integrated valve pulls up the hand brake after receiving the control command so as to realize the braking of the vehicle. According to the parking control system, the states of a driver and a vehicle are acquired through the gravity sensor and the vehicle speed sensor, and the manual electromagnetic integrated valve is used for replacing a traditional manual valve, so that manual and automatic integration of parking is realized, and the situation that the driver leaves the vehicle without parking and serious accidents are caused is prevented.
Description
Technical Field
The application relates to the technical field of automatic parking, in particular to an automatic parking method and system applied to a commercial vehicle and the vehicle.
Background
The vehicle slipping is to put into neutral or step off the clutch to slip, in short, when the vehicle is running fast, the clutch is stepped on or the gear is taken off by feet, and the vehicle is driven forward only by the inertia of the vehicle. When the automobile starts on a slope, the phenomenon that the automobile moves backwards due to improper oil separation and matching is also called slipping.
Methods to prevent roll include, but are not limited to, having to tighten the handbrake after parking; parking is far away from the slope as much as possible, a flat road section and a parking space are selected as much as possible, and the parking can be carried out on the slope with a gear; when the manual gear vehicle is stopped, the manual brake is pulled, the gear can be engaged, the engine resistance is utilized for braking, and double insurance is formed by the manual brake and the gear; after parking, obstacles such as bricks and the like are padded under the wheels, and the vehicle is prevented from sliding unexpectedly by using the method of increasing the friction force. The prevention methods are all realized based on the enhancement of the operation specifications of a driver, however, in order to further improve the safety of the vehicle and avoid the situation that the driver slides due to the fact that the driver forgets to pull a hand brake and the like after parking, a system with an automatic parking function is additionally arranged on the vehicle, so that the situation that serious traffic accidents are caused due to the sliding of the commercial vehicle is very important.
Some current parking techniques mainly include the following:
the commercial vehicle temporary stop control technology comprises the steps of judging whether the vehicle speed, the change of the opening degree of a Brake pedal and the current state of a parking Brake switch meet a temporary stop condition or not after detecting the triggering operation of a driver on the temporary stop switch, and if so, sending a temporary stop execution instruction to an ABS (anti lock Brake System) Controller through a CAN (Controller Area Network, short for the Controller Area Network) bus so that the ABS Controller controls an ABS electromagnetic valve and an ASR (Acceleration Slip Regulation) electromagnetic valve to apply temporary stop braking force to a vehicle, thereby effectively solving the problems of high air consumption, slow starting and the like when the parking Brake System is used for realizing temporary stop. The technology is mainly applied to waiting traffic lights or other short-time parking working conditions of vehicles, can reduce the operation difficulty of drivers, but is not applicable to manual-gear vehicles, can work after the vehicles are started, and is not applicable to the condition that the drivers forget to pull hand brakes after flameout.
The automatic parking system technology comprises a power supply starting system, an electronic hand brake module and a transmission control module, wherein the transmission control module comprises a starting/flameout signal receiving unit, an electronic hand brake state receiving unit and a gear control unit. The starting/flameout signal receiving unit is used for receiving a flameout instruction signal of the power supply starting system. And the electronic hand brake state receiving unit is used for receiving a pulling-up or releasing state signal of the electronic hand brake. And the gear control unit is used for setting the gear to be in a parking state according to a flameout instruction of the power supply starting system and a pull-up state signal of the electronic hand brake. The gear control unit is further used for setting the gear to be in a parking state according to a flameout instruction of the power supply starting system and a release state signal of the electronic hand brake, and the N-gear flameout automatic P-gear entering function is achieved by judging the state of the electronic hand brake. The technology can effectively solve the problem that the existing vehicle type provided with the electronic gear shifter cannot be conveniently flamed down to automatically enter the P gear under the N gear condition, but is only suitable for vehicles provided with an electronic hand brake and an automatic gearbox, and is not suitable for pneumatic control valve hand brakes and manual gearboxes of commercial vehicles.
A hill-hold method includes acquiring vehicle operating conditions. And judging the vehicle state according to the vehicle working condition. When the vehicle has a hill-hold requirement, the actual displacement ratio of the hydraulic system is controlled to be zero by adjusting the preset displacement ratio of the hydraulic system. In the hill hold method, the state of the vehicle is judged according to the working condition of the vehicle. When the vehicle has the requirement of hill-holding, the preset displacement ratio of the hydraulic system is adjusted so that the actual arrangement ratio of the hydraulic system is zero. When the actual arrangement ratio of the hydraulic system is zero, the vehicle can achieve hill-hold. The technology is suitable for vehicles equipped with a hydraulic braking system, and is not suitable for vehicles with pneumatic spring parking brakes such as commercial vehicles.
Disclosure of Invention
Aiming at the defects in the prior art, the application aims to provide the automatic parking method and system applied to the commercial vehicle and the vehicle, the states of a driver and the vehicle can be obtained through the gravity sensor and the vehicle speed sensor, and the manual control electromagnetic integrated valve replaces a traditional manual control valve, so that manual and automatic integration of parking is realized, and the automatic parking function is prevented from being mistakenly executed to bring serious accidents.
In order to achieve the above purposes, the technical scheme is as follows:
the application provides in a first aspect an automatic parking method for a commercial vehicle, comprising:
collecting gravity information and vehicle speed information on a driver seat;
when the gravity information and the vehicle speed information are judged to be smaller than a preset threshold value, sending a corresponding control instruction to a manual control electromagnetic integrated valve in a braking system;
and the manual control electromagnetic integrated valve pulls up the hand brake after receiving the control command so as to realize the braking of the vehicle.
In some embodiments, the method further comprises:
and when the gravity information and the vehicle speed information are both judged to be larger than the preset threshold value, controlling the vehicle to continuously run.
In some embodiments, the method further comprises:
when the gravity information is judged to be larger than the preset threshold value and the vehicle speed information is judged to be smaller than the preset threshold value, controlling the vehicle to continue running or normally park and brake;
and after receiving a normal parking braking instruction, the braking system realizes braking of the vehicle according to an input instruction of a driver.
In some embodiments, the system comprises:
the gravity sensor is arranged on the driver seat and is used for acquiring gravity information on the driver seat;
the vehicle speed sensor is used for acquiring vehicle speed information;
the automatic parking processing unit is used for sending a corresponding control instruction to a manual control electromagnetic integrated valve in the braking system when the gravity information and the vehicle speed information are judged to be smaller than a preset threshold value;
and the brake system comprises a manual control electromagnetic integrated valve, and the manual control electromagnetic integrated valve pulls up the hand brake after receiving the control command so as to realize the braking of the vehicle.
In some embodiments, the braking system is a pneumatic braking system.
In some embodiments, the braking system further comprises:
the air reservoir is used for outputting signal air pressure;
the one-way valve is connected with the air cylinder and the manual control electromagnetic integrated valve and is used for transmitting signal air pressure to the manual control electromagnetic integrated valve, and the manual control electromagnetic integrated valve transmits the signal air pressure to the differential valve;
the differential valve is connected with the manual electromagnetic integrated valve and is used for transmitting signal air pressure to the brake air chamber;
and the brake air chamber is connected with the differential valve and is used for receiving and storing the signal air pressure.
In some embodiments, the automatic parking processing unit is further configured to control the vehicle to continue to run when the gravity information and the vehicle speed information are both greater than the preset threshold value.
In some embodiments, the automatic parking processing unit is further configured to send a normal parking braking instruction to the braking system when it is determined that the gravity information is greater than the preset threshold and the vehicle speed information is less than the preset threshold;
and after receiving a normal parking braking instruction, the braking system realizes braking of the vehicle according to an input instruction of a driver.
In some embodiments, the system further comprises:
the ON gear power supply is connected with the manual electromagnetic integrated valve and the automatic parking processing unit and is used for sending an ON gear signal to the automatic parking processing unit;
and the automatic parking processing unit is also used for sending a corresponding control instruction to a manual control electromagnetic integrated valve in the brake system when the ON gear signal is closed and the gravity information and the vehicle speed information are both smaller than a preset threshold value by combining the ON gear signal.
The third aspect of the application provides a vehicle, which comprises the automatic parking system applied to the commercial vehicle.
The beneficial effect that technical scheme that this application provided brought includes:
1. the invention can be applied to vehicles equipped with manual pneumatic valves like handbrake and manual gearboxes.
2. The invention can be executed after the vehicle is flamed out, and can effectively solve the problem of vehicle sliding caused by forgetting to pull the hand brake after the driver stops the vehicle.
According to the invention, the states of a driver and a vehicle can be acquired through the gravity sensor and the vehicle speed sensor, and the manual electromagnetic integrated valve is used for replacing a traditional manual valve, so that manual and automatic integration of parking is realized, and the automatic parking function is prevented from being executed mistakenly to cause serious accidents.
3. The parking brake system is closer to the parking brake of the conventional commercial vehicle, is convenient to apply and refit in the later period, and is easy to popularize.
Drawings
Fig. 1 is a flowchart of an automatic parking method applied to a commercial vehicle in an embodiment of the present invention.
Fig. 2 is a functional block diagram of an automatic parking system applied to a commercial vehicle in an embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, an embodiment of the present invention provides an automatic parking method applied to a commercial vehicle, which obtains the state of a driver and the vehicle through a gravity sensor 7 and a vehicle speed sensor 6, and replaces a conventional manual valve with a manual electromagnetic integrated valve 3, so as to realize manual and automatic integration of parking, and prevent the driver from leaving the vehicle without parking and causing serious accidents.
In one embodiment, an automatic parking method applied to a commercial vehicle includes:
and S1, collecting gravity information on a driver seat and vehicle speed information of a vehicle.
And S2, when the gravity information and the vehicle speed information are judged to be smaller than the preset threshold value, sending a corresponding control instruction to a manual control electromagnetic integrated valve 3 in the brake system.
And S3, after receiving the control command, the manual control electromagnetic integrated valve 3 pulls up the hand brake to brake the vehicle.
In the embodiment, the gravity sensor 7 mounted on the driver seat can acquire the gravity information of the driver and transmit the information to the automatic parking processing unit 8, the vehicle speed sensor 6 can transmit the vehicle speed information of the vehicle to the automatic parking processing unit 8, and the automatic parking processing unit 8 compares the gravity information and the vehicle speed information with a preset value, so as to control the manual electromagnetic integrated valve 3 to execute the parking brake, thereby completing the automatic parking function, namely automatically pulling up the hand brake.
For example, when a driver leaves a driving position and does not pull up a hand brake, the gravity sensor 7 acquires gravity information of the driver, and then transmits the gravity information to the automatic parking processing unit 8, the vehicle speed sensor 6 transmits vehicle speed information of the vehicle to the automatic parking processing unit 8, at the moment, the gravity information is smaller than a preset value and the vehicle speed information is smaller than the preset value, at the moment, the automatic parking processing unit 8 sends an action instruction to the manual electromagnetic integrated valve 3, the manual electromagnetic integrated valve 3 automatically pulls up the hand brake, and the vehicle is normally parked. The preset value used for being compared with the gravity information is different from the preset value used for being compared with the vehicle speed information, and the preset value can be adjusted according to actual driving requirements.
The manual control electromagnetic integrated valve 3 can be added with an automatic control device on the basis of the existing manual control valve, the automatic control device can control the integrated valve to be closed after receiving a closing instruction, and the specific structure of the automatic control electromagnetic integrated valve can be designed according to actual requirements. For example, the manual control integrated solenoid valve 3 may be a solenoid valve controlled by a manual switch on the basis of a solenoid switch, and may be manually opened after the solenoid valve is closed, or may be manually reset after the solenoid valve is opened. The automatic parking processing Unit 8 may be considered to be integrated in a VECU (Vehicle Electronic Control Unit, short for a complete Vehicle Electronic Control Unit), and the manual electromagnetic integrated valve 3 is used to replace an existing manual valve, so that the difficulty in complete Vehicle arrangement and development is low. The patent proposal accords with the development direction of vehicle intellectualization, is beneficial to improving the safety of vehicles, reduces the accident risk caused by misoperation of users, and has higher economic value and social benefit. The whole improvement of the brake system can be realized only by improving the branch provided with the manual control valve in the brake system, and the parking intelligence and accuracy are improved.
The invention can be applied to vehicles equipped with manual pneumatic valves like handbrake and manual gearboxes. The invention can be executed after the vehicle is flamed out, and can effectively solve the problem of vehicle sliding caused by forgetting to pull the hand brake after the driver stops the vehicle. According to the invention, the states of a driver and a vehicle can be acquired through the gravity sensor 7 and the vehicle speed sensor 6, and the manual control electromagnetic integrated valve 3 is used for replacing a traditional manual control valve, so that manual and automatic integration of parking is realized, and serious accidents caused by the fact that the driver leaves the vehicle without parking are prevented. The parking brake system is closer to the parking brake of the conventional commercial vehicle, is convenient to apply and refit in the later period, and is easy to popularize.
In a preferred embodiment, the method further comprises:
and when the gravity information and the vehicle speed information are judged to be larger than the preset threshold value, controlling the vehicle to continuously run.
In the embodiment, the gravity sensor 7 mounted on the driver seat can acquire the gravity information of the driver and transmit the information to the automatic parking processing unit 8, the vehicle speed sensor 6 can transmit the vehicle speed information of the vehicle to the automatic parking processing unit 8, and the automatic parking processing unit 8 compares the gravity information and the vehicle speed information with a preset value, so as to control the manual electromagnetic integrated valve 3 to execute the parking brake, thereby completing the automatic parking function, namely automatically pulling up the hand brake.
For example, during normal driving, a driver sits on a driving seat to normally drive, the gravity sensor 7 acquires gravity information of the driver and then transmits the gravity information to the automatic parking processing unit 8, the vehicle speed sensor 6 transmits vehicle speed information of the vehicle to the automatic parking processing unit 8, and because the gravity information is greater than a preset value and the vehicle speed information is greater than the preset value at the moment, the automatic parking processing unit 8 does not send an action instruction to the manual control electromagnetic integrated valve 3 or a normal driving instruction to the vehicle, and the vehicle is controlled to continue to normally drive.
When the hand brake is forgotten to be pulled during parking, a driver leaves a driving position and does not pull up the hand brake, the gravity sensor 7 acquires the gravity information of the driver, then the gravity information is transmitted to the automatic parking processing unit 8, the vehicle speed sensor 6 transmits the vehicle speed information of the vehicle to the automatic parking processing unit 8, at the moment, the gravity information is smaller than a preset value and the vehicle speed information is smaller than the preset value, at the moment, the automatic parking processing unit 8 sends an action instruction to the manual electromagnetic integrated valve 3, the manual electromagnetic integrated valve 3 automatically pulls up the hand brake, and the vehicle is normally parked. The preset value used for being compared with the gravity information is different from the preset value used for being compared with the vehicle speed information, and the preset value can be adjusted according to actual driving requirements.
In a preferred embodiment, the method further comprises:
and when the gravity information is judged to be larger than the preset threshold value and the vehicle speed information is judged to be smaller than the preset threshold value, sending a normal parking braking instruction to the braking system.
And after receiving a normal parking braking instruction, the braking system realizes braking of the vehicle according to an input instruction of a driver.
In this embodiment, the gravity sensor 7 mounted on the driver seat can acquire the gravity information of the driver and transmit the gravity information to the automatic parking processing unit 8, the vehicle speed sensor 6 can transmit the vehicle speed information of the vehicle to the automatic parking processing unit 8, and the automatic parking processing unit 8 compares the gravity information and the vehicle speed information with a preset value, so as to control the manual electromagnetic integrated valve 3 to execute the parking braking action, thereby completing the automatic parking function, i.e., automatically pulling up the hand brake.
For example, during normal driving, a driver sits on a driving position to drive normally, the gravity sensor 7 acquires gravity information of the driver and then transmits the gravity information to the automatic parking processing unit 8, and the vehicle speed sensor 6 transmits vehicle speed information of the vehicle to the automatic parking processing unit 8, because the gravity information is greater than a preset value and the vehicle speed information is greater than the preset value at the moment, the automatic parking processing unit 8 does not send an action instruction to the manual electromagnetic integrated valve 3 or sends a normal driving instruction to the vehicle, and the vehicle is controlled to continue to drive normally.
When the automobile is normally parked, a driver sits on a driving position to flameout and pull up a hand brake, the gravity sensor 7 acquires gravity information of the driver, then the gravity information is transmitted to the automatic parking processing unit 8, the automobile speed sensor 6 transmits automobile speed information of an automobile to the automatic parking processing unit 8, at the moment, the gravity information is larger than a preset value, the automobile speed information is smaller than the preset value, and at the moment, the automatic parking processing unit 8 does not send an action instruction to the manual control electromagnetic integrated valve 3 or a normal parking braking instruction to a braking system. And after the braking system receives a normal parking braking instruction, the vehicle is braked according to the input instruction of the driver, and the vehicle is parked normally.
When the hand brake is forgotten to be pulled during parking, a driver leaves a driving position and does not pull up the hand brake, the gravity sensor 7 acquires the gravity information of the driver, then the gravity information is transmitted to the automatic parking processing unit 8, the vehicle speed sensor 6 transmits the vehicle speed information of the vehicle to the automatic parking processing unit 8, at the moment, the gravity information is smaller than a preset value and the vehicle speed information is smaller than the preset value, at the moment, the automatic parking processing unit 8 sends an action instruction to the manual electromagnetic integrated valve 3, the manual electromagnetic integrated valve 3 automatically pulls up the hand brake, and the vehicle is normally parked. The preset value used for being compared with the gravity information is different from the preset value used for being compared with the vehicle speed information, and the preset value can be adjusted according to actual driving requirements.
As shown in fig. 2, the present invention also provides an automatic braking system applied to a commercial vehicle, which includes a gravity sensor 7, a vehicle speed sensor 6, an automatic parking processing unit 8, and a braking system.
The gravity sensor 7 is arranged on the driver seat and used for collecting gravity information on the driver seat. The vehicle speed sensor 6 is used for collecting vehicle speed information. And the automatic parking processing unit 8 is used for sending a corresponding control instruction to the manual control electromagnetic integrated valve 3 in the brake system when the gravity information and the vehicle speed information are both judged to be smaller than the preset threshold value. And the braking system comprises a manual control electromagnetic integrated valve 3, and the manual control electromagnetic integrated valve 3 pulls up a hand brake after receiving the control command so as to realize braking on the vehicle.
In the embodiment, the gravity sensor 7 mounted on the driver seat can acquire the gravity information of the driver and transmit the information to the automatic parking processing unit 8, the vehicle speed sensor 6 can transmit the vehicle speed information of the vehicle to the automatic parking processing unit 8, and the automatic parking processing unit 8 compares the gravity information and the vehicle speed information with a preset value, so as to control the manual electromagnetic integrated valve 3 to execute the parking brake, thereby completing the automatic parking function, namely automatically pulling up the hand brake.
For example, when a driver leaves a driving position and does not pull up a hand brake, the gravity sensor 7 acquires gravity information of the driver, and then transmits the gravity information to the automatic parking processing unit 8, the vehicle speed sensor 6 transmits vehicle speed information of the vehicle to the automatic parking processing unit 8, at the moment, the gravity information is smaller than a preset value and the vehicle speed information is smaller than the preset value, at the moment, the automatic parking processing unit 8 sends an action instruction to the manual electromagnetic integrated valve 3, the manual electromagnetic integrated valve 3 automatically pulls up the hand brake, and the vehicle is parked normally. The preset value used for being compared with the gravity information is different from the preset value used for being compared with the vehicle speed information, and the preset value can be adjusted according to actual driving requirements.
The manual control electromagnetic integrated valve 3 can be added with an automatic control device on the basis of the existing integrated valve, the automatic control device can control the integrated valve to be closed after receiving a closing instruction, and the specific structure of the automatic control device can be designed according to actual requirements. For example, the manual control integrated solenoid valve 3 may be a solenoid valve that is controlled by a manual switch on the basis of a solenoid switch, and may be manually opened after the solenoid valve is closed, or may be manually reset after the solenoid valve is opened. The automatic parking processing unit 8 can be considered to be integrated in the VECU, the manual control electromagnetic integrated valve 3 is used for replacing the existing manual control valve, and the whole vehicle arrangement development difficulty is small. The patent proposal accords with the development direction of vehicle intellectualization, is beneficial to improving the safety of vehicles, reduces the accident risk caused by misoperation of users, and has higher economic value and social benefit.
The invention can be applied to vehicles equipped with manual pneumatic valves like handbrake and manual gearboxes. The invention can be executed after the vehicle is flamed out, and can effectively solve the problem of vehicle sliding caused by forgetting to pull the hand brake after the driver stops the vehicle. According to the invention, the states of a driver and a vehicle can be acquired through the gravity sensor 7 and the vehicle speed sensor 6, and the manual control electromagnetic integrated valve 3 is used for replacing a traditional manual control valve, so that manual and automatic integration of parking is realized, and the automatic parking function is prevented from being executed mistakenly to cause serious accidents. The parking brake system is closer to the parking brake of the conventional commercial vehicle, is convenient to apply and refit in the later period, and is easy to popularize.
In a preferred embodiment, the braking system is a pneumatic braking system. The brake system also comprises an air cylinder 1, a one-way valve 2, a differential valve 4 and a brake air chamber 5. The check valve 2 is connected to the gas cartridge 1 and the manual solenoid integrated valve 3, the differential valve 4 is connected to the manual solenoid integrated valve 3 and the brake chamber 5, and the automatic parking processing unit 8 is connected to the vehicle speed sensor 6, the gravity sensor 7, and the manual solenoid integrated valve 3.
The gas cylinder 1 is used for outputting signal gas pressure. The check valve 2 is used for transmitting signal air pressure to the manual electromagnetic integrated valve 3, and the manual electromagnetic integrated valve 3 transmits the signal air pressure to the differential valve 4. The differential valve 4 is used to transmit signal air pressure to the brake chamber 5. The brake chamber 5 is used for receiving and storing signal air pressure.
In the present embodiment, the integration valve used in the existing pneumatic brake system is a conventional integration valve, and the existing technology cannot perform a separate automatic control on the integration valve.
In one embodiment, in practical application, when the vehicle is running, the brake pedal is raised, the brake master cylinder is turned off, the front axle brake chamber 5 is not pressurized, and the brake chamber of the rear axle energy storage spring brake chamber 5 is not pressurized. The manual control electromagnetic integrated valve 3 is opened, other signals of the air storage cylinder 1 enter the differential valve 4 through the manual control electromagnetic integrated valve 3, the differential valve 4 is punched, air pressure comes out of the air storage cylinder 1, the stored energy entering the energy storage spring brake air chamber 5 through the differential valve 4 is strong, the air pressure pushes the piston, and the energy storage spring in the energy storage cavity is compressed to contact with parking brake.
In the actual application of the pneumatic brake system, the manual electromagnetic integrated valve 3 is closed when the vehicle brakes.
In a preferred embodiment, the automatic parking processing unit 8 is further configured to control the vehicle to continue to run when it is determined that the gravity information and the vehicle speed information are both greater than the preset threshold value.
In the embodiment, the gravity sensor 7 mounted on the driver seat can acquire the gravity information of the driver and transmit the information to the automatic parking processing unit 8, the vehicle speed sensor 6 can transmit the vehicle speed information of the vehicle to the automatic parking processing unit 8, and the automatic parking processing unit 8 compares the gravity information and the vehicle speed information with a preset value, so as to control the manual electromagnetic integrated valve 3 to execute the parking brake, thereby completing the automatic parking function, namely automatically pulling up the hand brake.
For example, during normal driving, a driver sits on a driving position to drive normally, the gravity sensor 7 acquires gravity information of the driver and then transmits the gravity information to the automatic parking processing unit 8, and the vehicle speed sensor 6 transmits vehicle speed information of the vehicle to the automatic parking processing unit 8, because the gravity information is greater than a preset value and the vehicle speed information is greater than the preset value at the moment, the automatic parking processing unit 8 does not send an action instruction to the manual electromagnetic integrated valve 3 or sends a normal driving instruction to the vehicle, and the vehicle is controlled to continue to drive normally.
When the hand brake is forgotten to be pulled during parking, a driver leaves a driving position and does not pull up the hand brake, the gravity sensor 7 acquires the gravity information of the driver, then the gravity information is transmitted to the automatic parking processing unit 8, the vehicle speed sensor 6 transmits the vehicle speed information of the vehicle to the automatic parking processing unit 8, at the moment, the gravity information is smaller than a preset value and the vehicle speed information is smaller than the preset value, at the moment, the automatic parking processing unit 8 sends an action instruction to the manual electromagnetic integrated valve 3, the manual electromagnetic integrated valve 3 automatically pulls up the hand brake, and the vehicle is normally parked. The preset value used for being compared with the gravity information is different from the preset value used for being compared with the vehicle speed information, and the preset value can be adjusted according to actual driving requirements.
In a preferred embodiment, the automatic parking processing unit 8 is further configured to send a normal parking braking command to the braking system when it is determined that the gravity information is greater than the preset threshold and the vehicle speed information is less than the preset threshold.
And after receiving a normal parking braking instruction, the braking system realizes braking of the vehicle according to an input instruction of a driver.
In the embodiment, the gravity sensor 7 mounted on the driver seat can acquire the gravity information of the driver and transmit the information to the automatic parking processing unit 8, the vehicle speed sensor 6 can transmit the vehicle speed information of the vehicle to the automatic parking processing unit 8, and the automatic parking processing unit 8 compares the gravity information and the vehicle speed information with a preset value, so as to control the manual electromagnetic integrated valve 3 to execute the parking brake, thereby completing the automatic parking function, namely automatically pulling up the hand brake.
For example, during normal driving, a driver sits on a driving position to drive normally, the gravity sensor 7 acquires gravity information of the driver and then transmits the gravity information to the automatic parking processing unit 8, and the vehicle speed sensor 6 transmits vehicle speed information of the vehicle to the automatic parking processing unit 8, because the gravity information is greater than a preset value and the vehicle speed information is greater than the preset value at the moment, the automatic parking processing unit 8 does not send an action instruction to the manual electromagnetic integrated valve 3 or sends a normal driving instruction to the vehicle, and the vehicle is controlled to continue to drive normally.
When the automobile is normally parked, a driver sits on a driving position to flameout and pulls up a hand brake, the gravity sensor 7 acquires gravity information of the driver, then the gravity information is transmitted to the automatic parking processing unit 8, the automobile speed sensor 6 transmits automobile speed information of the automobile to the automatic parking processing unit 8, the gravity information is larger than a preset value, the automobile speed information is smaller than the preset value, and the automatic parking processing unit 8 does not send an action instruction to the manual control electromagnetic integrated valve 3 or send a normal parking braking instruction to a braking system. And after the braking system receives a normal parking braking instruction, the vehicle is braked according to the input instruction of the driver, and the vehicle is parked normally.
When the hand brake is forgotten to be pulled during parking, a driver leaves a driving position and does not pull up the hand brake, the gravity sensor 7 acquires the gravity information of the driver, then the gravity information is transmitted to the automatic parking processing unit 8, the vehicle speed sensor 6 transmits the vehicle speed information of the vehicle to the automatic parking processing unit 8, at the moment, the gravity information is smaller than a preset value and the vehicle speed information is smaller than the preset value, at the moment, the automatic parking processing unit 8 sends an action instruction to the manual electromagnetic integrated valve 3, the manual electromagnetic integrated valve 3 automatically pulls up the hand brake, and the vehicle is normally parked. A default for carrying out the comparison with gravity information is different with the default that is used for carrying out the comparison with speed of a motor vehicle information, and all can adjust according to actual driving demand.
In a preferred embodiment, the system further comprises an ON power supply 9 connected to the manual solenoid integrated valve and the automatic parking processing unit 8, for sending an ON signal to the automatic parking processing unit 8.
The automatic parking processing unit 8 is further configured to send a corresponding control instruction to the manual control electromagnetic integrated valve 3 in the brake system when the ON-gear signal is off and the gravity information and the vehicle speed information are both less than a preset threshold value in combination with the ON-gear signal.
In the present embodiment, by replacing the conventional manual valve with the manual electromagnetic integrated valve 3, thereby realizing manual and automatic integration of parking. The states of a driver and a vehicle are obtained through the gravity sensor 7, the vehicle speed sensor 6 and the ON gear power supply 9, and therefore serious accidents caused by mistaken execution of an automatic parking function are prevented. The automatic parking processing unit 8 serves as an automatic parking system brain, and has functions of determining states of a driver and a vehicle, and transmitting an automatic parking command.
The invention also discloses a vehicle comprising the automatic braking system applied to the commercial vehicle.
In the embodiment, the gravity sensor 7 mounted on the driver seat can acquire the gravity information of the driver and transmit the information to the automatic parking processing unit 8, the vehicle speed sensor 6 can transmit the vehicle speed information of the vehicle to the automatic parking processing unit 8, and the automatic parking processing unit 8 compares the gravity information and the vehicle speed information with a preset value, so as to control the manual electromagnetic integrated valve 3 to execute the parking brake, thereby completing the automatic parking function, namely automatically pulling up the hand brake.
For example, when a driver leaves a driving position and does not pull up a hand brake, the gravity sensor 7 acquires gravity information of the driver, and then transmits the gravity information to the automatic parking processing unit 8, the vehicle speed sensor 6 transmits vehicle speed information of the vehicle to the automatic parking processing unit 8, at the moment, the gravity information is smaller than a preset value and the vehicle speed information is smaller than the preset value, at the moment, the automatic parking processing unit 8 sends an action instruction to the manual electromagnetic integrated valve 3, the manual electromagnetic integrated valve 3 automatically pulls up the hand brake, and the vehicle is normally parked. The preset value used for being compared with the gravity information is different from the preset value used for being compared with the vehicle speed information, and the preset value can be adjusted according to actual driving requirements.
The manual control electromagnetic integrated valve 3 can be added with an automatic control device on the basis of the existing manual control integrated valve, the automatic control device can control the integrated valve to be closed after receiving a closing instruction, and the specific structure of the automatic control electromagnetic integrated valve can be designed according to actual requirements. For example, the manual control integrated solenoid valve 3 may be a solenoid valve controlled by a manual switch on the basis of a solenoid switch, and may be manually opened after the solenoid valve is closed, or may be manually reset after the solenoid valve is opened. The automatic parking processing Unit 8 may be considered to be integrated in a VECU (Vehicle Electronic Control Unit, short for a complete Vehicle Electronic Control Unit), and the manual electromagnetic integrated valve 3 is used to replace an existing manual valve, so that the difficulty in complete Vehicle arrangement and development is low. The patent proposal accords with the development direction of vehicle intellectualization, is beneficial to improving the safety of vehicles, reduces the accident risk caused by misoperation of users, and has higher economic value and social benefit. The whole improvement of the braking system can be realized only by improving a branch circuit provided with a manual valve in the braking system, and the parking intelligence and accuracy are improved.
The invention can be applied to vehicles equipped with manual pneumatic valves like handbrake and manual gearboxes. The invention can be executed after the vehicle is flamed out, and can effectively solve the problem of vehicle sliding caused by forgetting to pull the hand brake after the driver stops the vehicle. According to the invention, the states of a driver and a vehicle can be acquired through the gravity sensor 7 and the vehicle speed sensor 6, and the manual control electromagnetic integrated valve 3 is used for replacing a traditional manual control valve, so that manual and automatic integration of parking is realized, and the automatic parking function is prevented from being executed mistakenly to cause serious accidents. The parking brake system is closer to the parking brake of the conventional commercial vehicle, is convenient to apply and refit in the later period, and is easy to popularize.
The present application is not limited to the above embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present application, and such modifications and improvements are also considered to be within the scope of the present application.
Claims (10)
1. An automatic parking method applied to a commercial vehicle, characterized by comprising:
collecting gravity information and vehicle speed information on a driver seat;
when the gravity information and the vehicle speed information are judged to be smaller than a preset threshold value, sending a corresponding control instruction to a manual control electromagnetic integrated valve in a braking system;
and the manual control electromagnetic integrated valve pulls up the hand brake after receiving the control command so as to realize the braking of the vehicle.
2. The automatic parking method for a commercial vehicle according to claim 1, further comprising:
and when the gravity information and the vehicle speed information are both judged to be larger than the preset threshold value, controlling the vehicle to continuously run.
3. The automatic parking method for a commercial vehicle according to claim 1, further comprising:
when the gravity information is judged to be larger than a preset threshold value and the vehicle speed information is judged to be smaller than the preset threshold value, controlling the vehicle to continue running or normally park and brake;
and after receiving a normal parking braking instruction, the braking system realizes braking of the vehicle according to an input instruction of a driver.
4. Automatic parking system for commercial vehicles according to claim 1, characterized in that it comprises:
the gravity sensor is arranged on the driver seat and used for collecting gravity information on the driver seat;
the vehicle speed sensor is used for acquiring vehicle speed information;
the automatic parking processing unit is used for sending a corresponding control command to a manual control electromagnetic integrated valve in a braking system when the gravity information and the vehicle speed information are judged to be smaller than a preset threshold value;
and the brake system comprises a manual control electromagnetic integrated valve, and the manual control electromagnetic integrated valve pulls up the hand brake after receiving the control command so as to realize the braking of the vehicle.
5. The automatic parking system for a commercial vehicle according to claim 4, wherein said brake system is a pneumatic brake system.
6. The automatic parking system for a commercial vehicle according to claim 5, wherein said brake system further comprises:
the air reservoir is used for outputting signal air pressure;
the one-way valve is connected with the air cylinder and the manual control electromagnetic integrated valve and is used for transmitting signal air pressure to the manual control electromagnetic integrated valve, and the manual control electromagnetic integrated valve transmits the signal air pressure to the differential valve;
the differential valve is connected with the manual electromagnetic integrated valve and is used for transmitting signal air pressure to the brake air chamber;
and the brake air chamber is connected with the differential valve and is used for receiving and storing the signal air pressure.
7. The automatic parking system for a commercial vehicle according to claim 4, wherein the automatic parking processing unit is further configured to control the vehicle to continue to run when it is determined that the gravity information and the vehicle speed information are both greater than the preset threshold value.
8. The automatic parking system applied to the commercial vehicle according to claim 4, wherein the automatic parking processing unit is further configured to send a normal parking brake command to the brake system when it is determined that the gravity information is greater than a preset threshold and the vehicle speed information is less than the preset threshold;
and after receiving a normal parking braking instruction, the braking system realizes braking of the vehicle according to an input instruction of a driver.
9. The automatic parking system for a commercial vehicle according to claim 4, further comprising:
the ON gear power supply is connected with the manual electromagnetic integrated valve and the automatic parking processing unit and is used for sending an ON gear signal to the automatic parking processing unit;
and the automatic parking processing unit is also used for sending a corresponding control instruction to a manual control electromagnetic integrated valve in the brake system when the ON gear signal is closed and the gravity information and the vehicle speed information are both smaller than a preset threshold value by combining the ON gear signal.
10. A vehicle comprising an automatic parking system for a commercial vehicle according to any one of claims 4-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211066333.5A CN115320554A (en) | 2022-08-31 | 2022-08-31 | Automatic parking method and system applied to commercial vehicle and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211066333.5A CN115320554A (en) | 2022-08-31 | 2022-08-31 | Automatic parking method and system applied to commercial vehicle and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115320554A true CN115320554A (en) | 2022-11-11 |
Family
ID=83929374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211066333.5A Pending CN115320554A (en) | 2022-08-31 | 2022-08-31 | Automatic parking method and system applied to commercial vehicle and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115320554A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734242A (en) * | 2008-11-11 | 2010-06-16 | 上海迪哈大计算机科技有限公司 | Control device and method for automatic braking in vehicle |
| CN101941436A (en) * | 2010-08-13 | 2011-01-12 | 芜湖伯特利汽车安全系统有限公司 | Electronic parking brake system for motor vehicle and auxiliary starting method thereof |
| CN106585594A (en) * | 2016-12-20 | 2017-04-26 | 北京汽车研究总院有限公司 | Parking brake method and device |
| CN111071223A (en) * | 2019-12-06 | 2020-04-28 | 西安圣华农业科技股份有限公司 | Automatic braking system for motor vehicle |
| CN113281038A (en) * | 2021-05-25 | 2021-08-20 | 东风商用车有限公司 | Whole vehicle matching verification device and method for clutch control system |
-
2022
- 2022-08-31 CN CN202211066333.5A patent/CN115320554A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734242A (en) * | 2008-11-11 | 2010-06-16 | 上海迪哈大计算机科技有限公司 | Control device and method for automatic braking in vehicle |
| CN101941436A (en) * | 2010-08-13 | 2011-01-12 | 芜湖伯特利汽车安全系统有限公司 | Electronic parking brake system for motor vehicle and auxiliary starting method thereof |
| CN106585594A (en) * | 2016-12-20 | 2017-04-26 | 北京汽车研究总院有限公司 | Parking brake method and device |
| CN111071223A (en) * | 2019-12-06 | 2020-04-28 | 西安圣华农业科技股份有限公司 | Automatic braking system for motor vehicle |
| CN113281038A (en) * | 2021-05-25 | 2021-08-20 | 东风商用车有限公司 | Whole vehicle matching verification device and method for clutch control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109017794B (en) | Ramp auxiliary system based on electronic hydraulic braking and control method thereof | |
| US6086515A (en) | Process and system for retaining a vehicle on an inclined roadway | |
| US7338137B2 (en) | Method and system for assisting the driveaway of a motor vehicle | |
| US9028015B2 (en) | Method for operation of a braking system for a motor vehicle | |
| US20050246081A1 (en) | Method and system to prevent unintended rolling of a vehicle | |
| CN109080635B (en) | Ramp starting control system and method for electric automobile | |
| US6994407B2 (en) | Method and device for controlling the braking equipment of a motor vehicle | |
| KR20060037315A (en) | Automatic program brake control system | |
| CN102452398A (en) | Method and control system for opening the drive train of a motor vehicle | |
| JP2002104147A (en) | Controlling method and device for vehicle wheel brake | |
| CN109484383B (en) | Electronic parking and hill start control system and vehicle | |
| US20080284240A1 (en) | Brake Control System for Vehicle and Control Method Thereof | |
| KR100785338B1 (en) | A brake control system for vehicle and control method thereof | |
| CN102133890A (en) | Slope start-stop auxiliary safety system of motor vehicle | |
| CN114537396A (en) | Self-adaptive control method and system for ramp auxiliary function of automatic-transmission commercial vehicle | |
| CN115320554A (en) | Automatic parking method and system applied to commercial vehicle and vehicle | |
| CN111572518A (en) | Hill starting braking device applied to air brake vehicle type and starting method | |
| WO2013024491A2 (en) | Anti roll back system for manual transmission vehicles | |
| CN213705404U (en) | Automatic parking system for vehicle | |
| JP3624930B2 (en) | Slope start assist device | |
| JP2007112156A (en) | Braking control device | |
| CN110329066B (en) | Automobile control device for lower limb disabled person | |
| CN220615800U (en) | AMT vehicle with hill start auxiliary control | |
| CN114940174A (en) | Automobile idling neutral gear starting assisting method and system and vehicle | |
| CN114701487A (en) | Automatic parking control method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |