CN107444368B - Air brake automatic parking control system and method - Google Patents
Air brake automatic parking control system and method Download PDFInfo
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- CN107444368B CN107444368B CN201710655631.0A CN201710655631A CN107444368B CN 107444368 B CN107444368 B CN 107444368B CN 201710655631 A CN201710655631 A CN 201710655631A CN 107444368 B CN107444368 B CN 107444368B
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- driving motor
- brake switch
- hand brake
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000011217 control strategy Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 206010063385 Intellectualisation Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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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
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/08—Brake-action initiating means for personal initiation hand actuated
- B60T7/085—Brake-action initiating means for personal initiation hand actuated by electrical means, e.g. travel, force sensors
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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
- 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
- B60T13/74—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 electrical assistance or drive
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses an automatic parking control system and method for air braking, and relates to the field of electric automobile control, wherein the system comprises: the hand brake switch angle collecting device is positioned below the hand brake switch and is used for collecting the opening and closing angles of the hand brake switch and generating angle information; and the whole vehicle controller is used for acquiring the angle information and controlling the driving motor controller according to the angle information so that the driving motor outputs torque according to the hand brake switch angle. Through the mutual cooperation among whole vehicle control unit, manual brake switch angle collection device, driving motor controller, driving motor, air supply and axle transmission just because whole vehicle control unit acquires angle information and according to angle information control driving motor controller is so that driving motor carries out moment output according to manual brake switch angle, has realized the initiative control to driving motor in city passenger train and the highway passenger train.
Description
Technical Field
The invention relates to the field of electric automobile control, in particular to an automatic air brake parking control system and method.
Background
At present, the automobile industry in China rapidly develops, and particularly in the aspects of intellectualization, safety and humanization, the nation puts forward higher requirements on the active safety and artificial intellectualization development of automobiles.
In terms of the current industry, the automatic parking function of the traditional passenger car is widely applied, but the function is based on the traditional oil brake electronic control. The urban buses and highway buses with the industrial bus length of more than or equal to 9m mostly adopt the air brake control principle, the air brake mechanism is limited on the basis, and the control strategy is more humanized and intelligent on the basis of how to improve the active safety of the urban buses and highway buses, so that the control strategy becomes an important subject in the industry at present.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an automatic air brake parking control system and an automatic air brake parking control method, which realize automatic air brake parking control on the basis of improving the active safety of urban buses and highway buses.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
on one hand, the embodiment of the invention provides an air brake automatic parking control system, which comprises a whole vehicle controller, a hand brake switch angle collecting device, a driving motor controller, a driving motor, an air source and an axle transmission device; the hand brake switch and the hand brake switch angle collecting device are electrically connected with the whole vehicle controller; the whole vehicle controller is connected with a driving motor controller through a first CAN bus, the driving motor controller is connected with the driving motor, the driving motor is connected with the axle transmission device, and the axle transmission device is connected with the hand brake switch through an air source; the hand brake switch angle collecting device is positioned below the hand brake switch and is used for collecting the opening and closing angles of the hand brake switch and generating angle information; and the whole vehicle controller is used for acquiring the angle information and controlling the driving motor controller according to the angle information so that the driving motor outputs torque according to the hand brake switch angle.
Further, the controlling the driving motor controller according to the angle information to enable the driving motor to output torque according to the hand brake switch angle includes: and when the vehicle controller determines that the hand brake switch is positioned at the emergency braking thrust position according to the angle information, generating a first control signal, and sending the first control signal to the driving motor controller so that the driving motor controller controls the torque output of the driving motor to be 0.
Further, the controlling the driving motor controller according to the angle information to enable the driving motor to output torque according to the hand brake switch angle includes: and the whole vehicle controller determines that when the hand brake switch reaches an emergency braking thrust position from a parking braking locking position according to the angle information, generates a second control signal and sends the second control signal to the driving motor controller, so that the driving motor controller controls the torque output of the driving motor to prevent the vehicle ramp from sliding.
Further, the manual brake switch angle collecting device comprises an electromagnetic switch and an angle sensor, and the angle information is a voltage signal of the angle sensor.
Further, the air brake automatic parking control system further comprises a display instrument, wherein the display instrument is connected with the whole vehicle controller through a second CAN bus and used for displaying various whole vehicle parameters and warning through acousto-optic and electric signals.
Further, the emergency braking thrust position is a position with air pressure of 0MPa in air braking, and the hand brake switch angle is 55-65 degrees.
Further, the parking brake locking position is a position for maintaining the air pressure in a brake pipeline to be 0MPa, and the hand brake switch angle is 90-80 DEG
On the other hand, the embodiment of the invention provides a pneumatic braking automatic parking control method, which is applied to the pneumatic braking automatic parking control system, and comprises the following steps: the hand brake switch angle collecting device collects the opening and closing angles of the hand brake switch and generates angle information; and the whole vehicle controller acquires the angle information and controls the driving motor controller according to the angle information so that the driving motor outputs torque according to the hand brake switch angle.
Further, the controlling the driving motor controller according to the angle information to enable the driving motor to output torque according to the hand brake switch angle includes: the vehicle controller generates a first control signal when determining that the hand brake switch is positioned at an emergency braking thrust position according to the angle information; and the whole vehicle controller sends the first control signal to the driving motor controller so that the driving motor controller controls the torque output of the driving motor to be 0.
Further, the controlling the driving motor controller according to the angle information to enable the driving motor to output torque according to the hand brake switch angle includes: the whole vehicle controller determines that the hand brake switch reaches an emergency braking thrust position from a parking braking locking position according to the angle information, and generates a second control signal; and the whole vehicle controller sends the second control signal to the driving motor controller so that the driving motor controller controls the torque output of the driving motor to prevent the vehicle ramp from sliding.
According to the air brake automatic parking control system and the air brake automatic parking control method, the driving motor, the air source and the axle transmission device are matched with each other through the whole vehicle controller, the hand brake switch angle collecting device, the driving motor controller, the driving motor, the air source and the axle transmission device, and the driving motor controller is controlled according to the angle information to enable the driving motor to output torque according to the hand brake switch angle, so that active control of the driving motor in urban buses and highway buses is achieved.
Drawings
FIG. 1 is a block diagram of an air brake automatic parking control system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a hand brake switch and a hand brake switch angle collecting device in the whole pneumatic brake automatic parking control system shown in fig. 1;
fig. 3 is a flowchart of an automatic air brake parking control method according to an embodiment of the present invention.
Reference numerals:
1-a whole vehicle controller; 2-a hand brake switch; 3-a hand brake switch angle collecting device; 4-a drive motor controller; 5-driving a motor; 6-air source; 7-axle transmission; 8-display instrument.
Detailed Description
Aiming at the problems in the prior art, the invention provides an automatic air brake parking control system and an automatic air brake parking control method, which realize automatic air brake parking control on the basis of improving the active safety of urban buses and highway buses.
Fig. 1 is an overall block diagram of an automatic pneumatic braking parking control system according to an embodiment of the present invention, where the automatic pneumatic braking parking control system includes: the device comprises a whole vehicle controller 1, a hand brake switch 2, a hand brake switch angle collecting device 3, a driving motor controller 4, a driving motor 5, an air source 6 and an axle transmission device 7. Wherein,,
the whole vehicle controller 1 can process various information of a system, implement a control strategy and a control logic program, and is a main element of the whole vehicle control system;
the driving motor controller 4 is a main element for providing a driving motor power supply, and can collect information such as voltage, temperature and the like of the driving motor 4 and provide the information for the whole vehicle controller 1 for implementing a control strategy;
the driving motor 5 is a main output source of the whole vehicle power system and drives the vehicle to run;
the air source 6 is an air source for parking brake provided in the whole air brake circuit;
the axle transmission device 7 mainly comprises tires, an axle, a speed reducer, a suspension, a transmission shaft and the like, and is a main execution component of a vehicle running system;
the hand brake switch 2 and the hand brake switch angle collecting device 3 are electrically connected with the whole vehicle controller 1; the vehicle controller 1 is connected with the driving motor controller 4 through a first CAN bus, the driving motor controller 4 is connected with the driving motor 5, the driving motor 5 is connected with the axle transmission device 7, and the axle transmission device 7 is connected with the hand brake switch 2 through an air source 6; the hand brake switch angle collecting device 3 is positioned below the hand brake switch 2 and is used for collecting the opening and closing angles of the hand brake switch 2 and generating angle information; the vehicle controller 1 is configured to obtain the angle information and control the driving motor controller 4 according to the angle information, so that the driving motor 4 outputs torque according to the hand brake switch angle.
According to the air brake automatic parking control system provided by the embodiment of the invention, the driving motor in urban buses and highway buses is actively controlled by the mutual coordination among the whole vehicle controller, the hand brake switch angle collecting device, the driving motor controller, the driving motor, the air source and the axle transmission device and the control of the driving motor controller according to the angle information, so that the driving motor outputs torque according to the hand brake switch angle.
In an embodiment, the controlling the driving motor controller according to the angle information to enable the driving motor to output torque according to the hand brake switch angle includes: and when the vehicle controller determines that the hand brake switch is positioned at the emergency braking thrust position according to the angle information, generating a first control signal, and sending the first control signal to the driving motor controller so that the driving motor controller controls the torque output of the driving motor to be 0.
In this embodiment, the emergency braking thrust position is a position where the air pressure in the air brake is 0MPa, and at this time, the vehicle enters an automatic parking state. When the vehicle enters an automatic parking state, the vehicle can be parked for a long time through the hand brake switch, and when the hand brake switch is released, the vehicle can not slide backwards due to the fact that the vehicle is in the automatic parking state all the time, and therefore torque output of the driving motor can be controlled to be 0 through the driving motor controller. The problem of among the prior art in whole automatic parking in-process driving motor and controller be in work output state, driving motor and drive control have high temperature risk is solved.
Specifically, the emergency braking thrust position is a position with air pressure of 0MPa in air braking, and the hand brake switch angle is 55-65 degrees. According to the empirical values, the hand brake switch angle is generally about 60 degrees as shown in fig. 2.
In an embodiment, the controlling the driving motor controller according to the angle information to enable the driving motor to output torque according to the hand brake switch angle includes: and the whole vehicle controller determines that when the hand brake switch reaches an emergency braking thrust position from a parking braking locking position according to the angle information, generates a second control signal and sends the second control signal to the driving motor controller, so that the driving motor controller controls the torque output of the driving motor to prevent the vehicle ramp from sliding.
In this embodiment, when the hand brake switch reaches the emergency brake thrust position from the parking brake locking position, the driving motor is controlled by the driving motor controller so that the driving motor performs torque output, so that the problem in the prior art that when the hand brake switch is released, the vehicle is in an anti-slip slope closing state in the process of from 60 degrees to 10 degrees due to the fact that the torque output is performed in advance, and the hand brake braking torque at the moment is smaller than the backward slip torque, is solved.
In an embodiment, the hand brake switch angle collecting device comprises an electromagnetic switch and an angle sensor, and the angle information is a voltage signal of the angle sensor. In the embodiment, the whole vehicle controller collects voltage signals of the angle sensor of the hand brake switch, and the motor brake can be reasonably and actively controlled according to different voltage values.
Specifically, the parking brake locking position is a position for maintaining the air pressure in a brake pipeline to be 0MPa, and the hand brake switch angle is 90-80 degrees. According to the empirical values, the hand brake switch angle is typically about 85 ° as shown in fig. 2.
Further, as shown in fig. 1, the air brake automatic parking control system further includes a display instrument 9, where the display instrument is connected with the vehicle controller through a second CAN bus and is used for displaying various vehicle parameters and alerting through acousto-optic and electric signals
Compared with the prior art: the air brake parking control system provided by the embodiment of the invention utilizes a modern intelligent automatic control technology, and the whole vehicle controller CAN realize the anti-slip and automatic parking functions when a vehicle is parked by using a CAN bus control technology, so that the air brake parking control system is a reflection of the whole vehicle automatic control technology, and provides technical support for active safety of the vehicle at any time in combination with the surrounding environment. The system does not work all the time, but the whole vehicle controller automatically controls in real time according to the angle of the hand brake switch, so that the consumption of electric energy can be reduced, and the continuous operation mileage of the electric vehicle can be prolonged. The safety coefficient is high: compared with the traditional air braking parking mode, the hidden danger of sliding can be effectively reduced, and the safety is actively improved. The cost is low: because the motor is easy to cause the reduction of the service life of the motor due to the overhigh temperature, the invention has obvious cost advantage compared with high motor maintenance cost. The use and maintenance are convenient: the system has the advantages that the system can automatically complete safety protection, automatically prompt a driver to carry out system maintenance and overhaul, and the like.
On the other hand, as shown in fig. 3, an embodiment of the present invention provides an air brake automatic parking control method, which is applied to the air brake automatic parking control system described in the foregoing embodiment, and is not described herein, where the method includes:
step 101, the hand brake switch angle collecting device collects the opening and closing angles of the hand brake switch and generates angle information;
step 102, the whole vehicle controller obtains the angle information and controls the driving motor controller according to the angle information so that the driving motor outputs torque according to the hand brake switch angle.
Further, the controlling the driving motor controller according to the angle information to enable the driving motor to output torque according to the hand brake switch angle includes: the vehicle controller generates a first control signal when determining that the hand brake switch is positioned at an emergency braking thrust position according to the angle information; and the whole vehicle controller sends the first control signal to the driving motor controller so that the driving motor controller controls the torque output of the driving motor to be 0.
Further, the controlling the driving motor controller according to the angle information to enable the driving motor to output torque according to the hand brake switch angle includes: the whole vehicle controller determines that the hand brake switch reaches an emergency braking thrust position from a parking braking locking position according to the angle information, and generates a second control signal; and the whole vehicle controller sends the second control signal to the driving motor controller so that the driving motor controller controls the torque output of the driving motor to prevent the vehicle ramp from sliding.
According to the air brake automatic parking control method provided by the embodiment of the invention, the driving motor in the city bus and the highway bus is actively controlled by the mutual coordination among the whole vehicle controller, the hand brake switch angle collecting device, the driving motor controller, the driving motor, the air source and the axle transmission device and the control of the driving motor controller according to the angle information so that the driving motor outputs torque according to the hand brake switch angle.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The air brake automatic parking control system is characterized by comprising a whole vehicle controller, a hand brake switch angle collecting device, a driving motor controller, a driving motor, an air source and an axle transmission device; the hand brake switch and the hand brake switch angle collecting device are electrically connected with the whole vehicle controller; the whole vehicle controller is connected with a driving motor controller through a first CAN bus, the driving motor controller is connected with the driving motor, the driving motor is connected with the axle transmission device, and the axle transmission device is connected with the hand brake switch through an air source;
the hand brake switch angle collecting device is positioned below the hand brake switch and is used for collecting the opening and closing angles of the hand brake switch and generating angle information;
the whole vehicle controller is used for acquiring the angle information and controlling the driving motor controller according to the angle information so that the driving motor outputs torque according to the hand brake switch angle;
the controlling the driving motor controller according to the angle information to enable the driving motor to output torque according to the hand brake switch angle comprises the following steps:
when the vehicle controller determines that the hand brake switch is positioned at an emergency braking thrust position according to the angle information, a first control signal is generated and sent to the driving motor controller, so that the driving motor controller controls the torque output of the driving motor to be 0;
and the whole vehicle controller determines that when the hand brake switch reaches an emergency braking thrust position from a parking braking locking position according to the angle information, generates a second control signal and sends the second control signal to the driving motor controller, so that the driving motor controller controls the torque output of the driving motor to prevent the vehicle ramp from sliding.
2. The system of claim 1, wherein the hand brake switch angle collection device comprises an electromagnetic switch and an angle sensor, the angle information being a voltage signal of the angle sensor.
3. The system of claim 1, further comprising a display instrument connected to the vehicle controller via a second CAN bus for displaying various vehicle parameters and alerting via an acousto-optic electrical signal.
4. The system of claim 1, wherein the emergency brake thrust position is a position where air pressure in air braking is 0MPa and the hand brake switch angle is 55 ° -65 °.
5. The system of claim 1, wherein the parking brake lock position is a position maintaining air pressure in the brake line at 0MPa and the hand brake switch angle is 90 ° -80 °.
6. A pneumatic brake automatic parking control method, characterized by being applied to the pneumatic brake automatic parking control system according to any one of claims 1 to 5, comprising:
the hand brake switch angle collecting device collects the opening and closing angles of the hand brake switch and generates angle information;
and the whole vehicle controller acquires the angle information and controls the driving motor controller according to the angle information so that the driving motor outputs torque according to the hand brake switch angle.
7. The method of claim 6, wherein controlling the drive motor controller according to the angle information to cause the drive motor to perform torque output according to a hand brake switch angle comprises:
the vehicle controller generates a first control signal when determining that the hand brake switch is positioned at an emergency braking thrust position according to the angle information;
and the whole vehicle controller sends the first control signal to the driving motor controller so that the driving motor controller controls the torque output of the driving motor to be 0.
8. The method of claim 7, wherein controlling the drive motor controller according to the angle information to cause the drive motor to perform torque output according to a hand brake switch angle comprises:
the whole vehicle controller determines that the hand brake switch reaches an emergency braking thrust position from a parking braking locking position according to the angle information, and generates a second control signal;
and the whole vehicle controller sends the second control signal to the driving motor controller so that the driving motor controller controls the torque output of the driving motor to prevent the vehicle ramp from sliding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710655631.0A CN107444368B (en) | 2017-08-03 | 2017-08-03 | Air brake automatic parking control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710655631.0A CN107444368B (en) | 2017-08-03 | 2017-08-03 | Air brake automatic parking control system and method |
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| Publication Number | Publication Date |
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| CN107444368A CN107444368A (en) | 2017-12-08 |
| CN107444368B true CN107444368B (en) | 2023-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710655631.0A Active CN107444368B (en) | 2017-08-03 | 2017-08-03 | Air brake automatic parking control system and method |
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Families Citing this family (1)
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| CN112389405A (en) * | 2020-11-02 | 2021-02-23 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Hand brake protection method, system and device and automobile |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561527A (en) * | 1983-01-31 | 1985-12-31 | Mazda Motor Corporation | Electric parking brake system for a vehicle |
| FR2843350B1 (en) * | 2002-08-06 | 2005-04-01 | Renault Sa | METHOD FOR CONTROLLING THE BRAKING OF WHEELS OF A MOTOR VEHICLE, DEVICE FOR CONTROLLING THE DISTRIBUTION OF BRAKE EFFORTS AND VEHICLE EQUIPPED WITH SUCH A DEVICE |
| DE112007002573A5 (en) * | 2006-10-24 | 2009-09-17 | Avl List Gmbh | Parking brake device |
| CN104494591B (en) * | 2014-12-23 | 2017-04-12 | 安徽安凯汽车股份有限公司 | Electronic parking control system of electric motor coach and control method of electronic parking control system |
| CN104859607A (en) * | 2015-05-27 | 2015-08-26 | 宋本哲 | Protection device of automobile for preventing children from misoperating mechanical handbrake |
| CN105059282B (en) * | 2015-08-10 | 2016-08-31 | 苏州萨克汽车科技有限公司 | Electronic hand braking system and control method thereof |
| CN105438148B (en) * | 2015-12-14 | 2018-06-29 | 郑州宇通客车股份有限公司 | A kind of electric motor coach parking braking control system and its control method |
| CN205344860U (en) * | 2015-12-14 | 2016-06-29 | 郑州宇通客车股份有限公司 | [electric] motor coach parking braking control system |
| CN207029146U (en) * | 2017-08-03 | 2018-02-23 | 山东沂星电动汽车有限公司 | Gas brakes automatic parking control system |
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2017
- 2017-08-03 CN CN201710655631.0A patent/CN107444368B/en active Active
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