CN113830055A - Electronic braking system for pneumatic braking and control method - Google Patents
Electronic braking system for pneumatic braking and control method Download PDFInfo
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- CN113830055A CN113830055A CN202111135631.0A CN202111135631A CN113830055A CN 113830055 A CN113830055 A CN 113830055A CN 202111135631 A CN202111135631 A CN 202111135631A CN 113830055 A CN113830055 A CN 113830055A
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- 238000000034 method Methods 0.000 title claims description 25
- 238000006073 displacement reaction Methods 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 14
- 230000006837 decompression Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 9
- 238000004904 shortening Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- 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
-
- 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
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/002—Air treatment devices
- B60T17/004—Draining and drying devices
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses an electronic braking system for air braking, which comprises an air compressor, a dryer, an air cylinder, an electric control air path, a mechanical air path, a differential relay valve, an air chamber and a controller, wherein the air compressor is connected with the dryer; the electric control gas circuit and the mechanical gas circuit are respectively connected with the gas cylinder, and the differential relay valve is respectively connected with the gas chamber and the gas cylinder; the electric control gas circuit and the mechanical gas circuit are respectively connected with the control end of the differential relay valve; the dryer is respectively connected with the air compressor and the air storage cylinder; the controller is respectively electrically connected with the electric control gas circuit, the mechanical gas circuit and the differential relay valve; the electric control gas circuit comprises a first electromagnetic valve, a second electromagnetic valve and a first gas circuit; the first electromagnetic valve and the second electromagnetic valve are sequentially arranged in the airflow flowing direction of the first air path; the first electromagnetic valve and the second electromagnetic valve are both connected with the controller; the first electromagnetic valve is a two-position three-way normally closed electromagnetic valve; the invention transmits the brake signal by the electric signal, thereby improving the brake response time and shortening the brake distance.
Description
Technical Field
The invention relates to the technical field of automobile braking, in particular to an electronic braking system for air braking and a control method.
Background
In recent years, the rapid development of urban transportation and logistics industry in China greatly promotes the use and development of large pneumatic brake commercial vehicles in the transportation industry. The pneumatic brake type is often because reasons such as the load goods is many and heavy, braking system control pipeline is long in the in-process of transportation, leads to traveling inertia big, and the final vehicle braking response time that makes is long to cause serious road safety accident.
Safety problems are the focus of people's attention, and in recent years, the modernization of our country is accelerated and the living standard of people is continuously improved, so that various vehicles are more and more in life and work, and the use safety of the vehicles is also very important. At present, the conventional air brake is mainly adopted for braking heavy vehicles, but the air brake system generally has the problems of long response time, long braking distance and the like. The anti-lock braking system has slow response, long braking distance and other problems during emergency braking.
Disclosure of Invention
The invention aims to provide an electronic braking system for air braking, which aims to overcome the defects that the conventional air braking is mainly adopted for braking heavy vehicles in the prior art, but the air braking system generally has the problems of long response time, long braking distance and the like.
The scheme is realized as follows:
an electronic braking system for air braking comprises an air compressor, a dryer, an air storage cylinder, an electric control air path, a mechanical air path, a differential relay valve, an air chamber and a controller; the electric control gas circuit and the mechanical gas circuit are respectively connected with the gas cylinder, and the differential relay valve is respectively connected with the gas chamber and the gas cylinder; the electric control gas circuit and the mechanical gas circuit are respectively connected with the control end of the differential relay valve; the dryer is respectively connected with the air compressor and the air storage cylinder; and the controller is respectively electrically connected with the electric control gas circuit, the mechanical gas circuit and the differential relay valve.
Based on the electronic braking system for air braking, the electric control air path comprises a first electromagnetic valve, a second electromagnetic valve and a first air path; the first electromagnetic valve and the second electromagnetic valve are sequentially arranged in the airflow flowing direction of the first air path; the first electromagnetic valve and the second electromagnetic valve are both connected with the controller; the first electromagnetic valve is a two-position three-way normally closed electromagnetic valve, and the second electromagnetic valve is a two-position three-way normally open electromagnetic valve.
Based on the electronic braking system for air braking, an air pressure sensor is arranged between the differential relay valve and the air chambers, and a wheel speed sensor is arranged near each air chamber.
Based on the electronic braking system for air braking, the mechanical air path comprises a third electromagnetic valve and a main braking valve with displacement sensing; the main brake valve with the displacement sensing function is connected with a third electromagnetic valve, and the third electromagnetic valve is connected with a control port of the differential relay valve through an air path; the third electromagnetic valve is a two-position three-way normally-open electromagnetic valve.
Based on above-mentioned electronic braking system for air braking, take and move sensing formula braking master valve and be connected with 2 gas receivers respectively to it is connected with 2 groups of wheel braking gas circuits to move sensing formula braking master valve.
The invention also provides a control method of the electronic brake system for air braking, which comprises the following steps:
the method comprises the following steps: judging whether the electronic braking system works normally, when the electronic braking system fails, all the electromagnetic valves are not electrified, and the belt-moving sensing type braking master valve directly controls the differential relay valve to supply air to the air chamber so as to realize braking; if the electronic braking system is normal, entering a step two;
step two: when the power is on, the third electromagnetic valve is not conducted; the controller detects the pedal depth and the pedal displacement rate of the master brake valve with displacement sensing to calculate the air pressure required by braking;
and the wheel speed sensor and the controller are used for judging the slip state of the vehicle tire to determine whether the processes of pressurization, pressure maintaining or pressure reducing are required to be carried out.
And (3) a pressurization process: only the first electromagnetic valve is electrified, the first electromagnetic valve is conducted, the air pressure of the air storage cylinder reaches a control port of the differential relay valve after passing through the first electromagnetic valve and the second electromagnetic valve, and the differential relay valve pressurizes the air chamber according to the control quantity;
and (3) pressure maintaining process: only the second electromagnetic valve is electrified, so that the second electromagnetic valve is not conducted; because the first electromagnetic valve is a normally closed electromagnetic valve, the first electromagnetic valve is not conducted, and the air pressure of the control end of the differential relay valve is kept unchanged at the moment, so that the pressure maintaining operation is realized;
and (3) decompression process: and powering off the first electromagnetic valve and the second electromagnetic valve, communicating the control port of the differential relay valve with the atmosphere at the moment, discharging the control air pressure, and releasing the brake.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the air compressor generates gas, the gas is flushed into the air cylinder for standby after being dried by the dryer, the mechanical gas circuit and the electric control gas circuit respectively control the opening state of the differential relay valve, and when the electric control end has a problem, the mechanical gas circuit acts, and the scheme adopts double control, so that the electric control gas circuit is more sensitive in reaction; the signal of telecommunication transmission braking signal, the response time that can effectual promotion braking to because the structure of automatically controlled subassembly compares in mechanical structure can be littleer, be close to the air chamber more and assemble, thereby very big reduction braking gas circuit distance, response time just can be more sensitive.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
in the figure: 1. an air compressor; 2. a dryer; 3. an air cylinder; 4. an electric control gas circuit; 5. a mechanical gas circuit; 6. a differential relay valve; 7. an air chamber; 8. a controller; 9. a wheel speed sensor; 41. a first solenoid valve; 42. a second solenoid valve; 43. a first gas path; 44. an air pressure sensor; 51. a third electromagnetic valve; 52. the main brake valve is provided with a displacement sensing type.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example 1
Referring to fig. 1, the present invention provides a technical solution:
an electronic braking system for air braking comprises an air compressor 1, a dryer 2, an air storage cylinder 3, an electric control air path 4, a mechanical air path 5, a differential relay valve 6, an air chamber 7 and a controller 8; the electric control gas circuit 4 and the mechanical gas circuit 5 are respectively connected with the gas cylinder 3, and the differential relay valve 6 is respectively connected with the gas chamber 7 and the gas cylinder 3; the electric control gas circuit 4 and the mechanical gas circuit 5 are respectively connected with the control end of the differential relay valve 6; the dryer 2 is respectively connected with the air compressor 1 and the air storage cylinder 3; the controller 8 is respectively electrically connected with the electric control gas circuit 4, the mechanical gas circuit 5 and the differential relay valve 6;
based on the structure, the air compressor 1 generates air, the air is flushed into the air storage cylinder 3 for standby after being dried by the dryer 2, the mechanical air path 5 and the electric control air path 4 respectively control the opening state of the differential relay valve 6, when the electric control end has a problem, the mechanical air path 5 acts, double control is adopted in the scheme, and the electric control air path 4 is more sensitive in reaction; the signal of telecommunication transmission braking signal, the response time of braking can be effectual promotion to because the structure of automatically controlled subassembly compares in mechanical structure can be littleer, be close to air chamber 7 more and assemble, thereby very big shortening braking gas circuit distance, response time just can be more sensitive.
The electric control gas circuit 4 comprises a first electromagnetic valve 41, a second electromagnetic valve 42 and a first gas circuit 43; the first electromagnetic valve 41 and the second electromagnetic valve 42 are arranged in sequence in the airflow direction of the first air passage 43; the first electromagnetic valve 41 is a two-position three-way normally closed electromagnetic valve, and the second electromagnetic valve 42 is a two-position three-way normally open electromagnetic valve; the first electromagnetic valve 41 and the second electromagnetic valve 42 are both connected with the controller 8; the controller 8 controls the on-off conditions of the first electromagnetic valve 41 and the second electromagnetic valve 42;
an air pressure sensor 44 is arranged between the differential relay valve 6 and the air chambers 7, and a wheel speed sensor 9 is arranged near each air chamber 7;
based on the structure, the electric control gas circuit 4 realizes the processes of pressurization, pressure maintaining and pressure reduction through two-position three-way electromagnetic valves (a normal general formula and a normal closed type); a No. 1 connecting hole, a No. 2 connecting hole and a No. 3 atmospheric hole are formed in the first electromagnetic valve 41 and the second electromagnetic valve 42;
when the general-purpose electromagnetic valve is connected with the gas inlet path, when the general-purpose electromagnetic valve is not electrified, the No. 1 connecting hole and the No. 2 connecting hole are respectively connected with the gas path, and the No. 3 atmospheric hole is connected with the atmosphere, so that the general-purpose electromagnetic valve is conducted; when the power is on, the switch is switched to enable the No. 2 connecting hole to be communicated with the No. 3 atmospheric hole, and the No. 1 connecting hole is closed, so that one end of the normally-open type electromagnetic valve is communicated with the atmosphere;
normally, when the closed electromagnetic valve is connected with the gas inlet circuit and is not electrified, the No. 1 connecting hole is connected with the gas circuit, and the No. 2 connecting hole is connected with the No. 3 atmosphere hole; one end of the normally closed electromagnetic valve is communicated with the atmosphere, so that the normally closed electromagnetic valve is not communicated; when the electromagnetic valve is electrified, the change-over switch, the No. 1 connecting hole and the No. 2 connecting hole are respectively connected with the air path, so that the normally closed electromagnetic valve is conducted.
The mechanical air path 5 comprises a third electromagnetic valve 51 and a master brake valve 52 with a displacement sensor; the main brake valve 52 with the displacement sensor is connected with a third electromagnetic valve 51, and the third electromagnetic valve 51 is connected with a control port of the differential relay valve 6 through an air path; the third solenoid valve 51 is a two-position three-way normally-open solenoid valve.
Based on the structure, the main brake valve 52 with displacement sensing senses the depth of the brake pedal of the external vehicle body and the displacement rate of the brake pedal, the controller 8 calculates the air pressure required by braking according to the depth of the brake pedal and the displacement rate of the brake pedal, the processes of pressurization, pressure maintaining and pressure reduction are realized through two-position three-way electromagnetic valves (normally open and normally closed), the air pressure sensor 44 is connected between the differential relay valve 6 and the air chamber 7 in parallel to feed back the actual braking air pressure, and the controller 8 adjusts the on-off of the electromagnetic valves according to the feedback air pressure to achieve the required braking air pressure; when a fault occurs, the differential relay valve 6 can be directly controlled by the movable sensing type brake master valve to realize the adjustment of the gas circuit;
in this embodiment, the master cylinder with displacement sensing is connected to 2 air cylinders 3, and the master cylinder with displacement sensing is connected to 2 groups of wheel brake air circuits, that is, 4 wheels are braked by one master cylinder with displacement sensing.
In this embodiment, each wheel is provided with an electrically controlled gas circuit 4, and the first electromagnetic valve 41 and the second battery valve of each electrically controlled gas circuit 4 are connected to the controller 8.
Example 2
Based on the above embodiment 1, the present embodiment provides a control method of an electronic brake system for air braking, including the steps of:
the method comprises the following steps: judging whether the electronic brake system works normally, when the electronic brake system fails, all the electromagnetic valves are not electrified, at the moment, the gas in the main brake valve with the displacement sensing type directly passes through the third electromagnetic valve 51 and reaches the control end of the differential relay valve 6, and the differential relay valve 6 supplies gas to the gas chamber 7 according to the control requirement to realize braking; and the electronic brake system normally enters the step two.
Step two: when the third electromagnetic valve 51 is electrified, the No. 1 connecting hole of the third electromagnetic valve 51 is closed, and the No. 2 connecting hole is connected with the No. 3 atmospheric hole to ensure that the third electromagnetic valve 51 is electrified and not conducted; the controller 8 detects the pedal depth and the pedal displacement rate of the master brake valve with displacement sensing to calculate the air pressure required by braking;
and determining whether to perform pressurization, pressure maintaining or pressure reducing processes by judging the slip state of the vehicle tire through the wheel speed sensor 9 and the controller 8:
and (3) a pressurization process: the first electromagnetic valve 41 is electrified, the connection hole No. 1 of the first electromagnetic valve 41 is communicated with the connection hole No. 2 of the first electromagnetic valve 41, the second electromagnetic valve 42 is a normally open type electromagnetic valve and is in a communication state when not electrified, air pressure of the air cylinder 3 reaches a control port of the differential relay valve 6 after passing through the first electromagnetic valve 41 and the second electromagnetic valve 42, and the differential relay valve 6 pressurizes the air chamber 7 according to a control quantity;
and (3) pressure maintaining process: only the second electromagnetic valve 42 is electrified, the connection hole No. 1 and the connection hole No. 2 of the second electromagnetic valve 42 are disconnected, and the connection hole No. 2 and the atmosphere hole No. 3 are connected; because the first electromagnetic valve 41 is a normally closed electromagnetic valve, when the first electromagnetic valve 41 is powered off, the connection hole 1 and the connection hole 2 are disconnected, the connection hole 2 and the atmospheric hole 3 are connected, and the air pressure at the control end of the differential relay valve 6 is kept unchanged, so that the pressure maintaining operation is realized;
and (3) decompression process: the first solenoid valve 41 and the second solenoid valve 42 are powered off, the No. 1 connecting hole and the No. 2 connecting hole of the No. 6 solenoid valve of the second solenoid valve 42 are communicated, the No. 2 connecting hole and the No. 3 atmosphere hole of the first solenoid valve 41 are connected, at the moment, the control port of the differential relay valve 6 is communicated with the atmosphere, the control air pressure is discharged, and the brake is released.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An electronic braking system for air braking is characterized by comprising an air compressor, a dryer, an air storage cylinder, an electric control air path, a mechanical air path, a differential relay valve, an air chamber and a controller; the electric control gas circuit and the mechanical gas circuit are respectively connected with the gas cylinder, and the differential relay valve is respectively connected with the gas chamber and the gas cylinder; the electric control gas circuit and the mechanical gas circuit are respectively connected with the control end of the differential relay valve; the dryer is respectively connected with the air compressor and the air storage cylinder; and the controller is respectively electrically connected with the electric control gas circuit, the mechanical gas circuit and the differential relay valve.
2. An electronic brake system for pneumatic braking according to claim 1, wherein said electric control circuit includes a first solenoid valve, a second solenoid valve and a first circuit; the first electromagnetic valve and the second electromagnetic valve are sequentially arranged in the airflow flowing direction of the first air path; the first electromagnetic valve and the second electromagnetic valve are both connected with the controller; the first electromagnetic valve is a two-position three-way normally closed electromagnetic valve, and the second electromagnetic valve is a two-position three-way normally open electromagnetic valve.
3. An electric brake system according to claim 1, wherein an air pressure sensor is provided between the differential relay valve and the air chambers, and a wheel speed sensor is provided near each air chamber.
4. An electronic brake system for air braking according to claim 1, wherein said mechanical air path includes a third solenoid valve and a master cylinder valve with displacement sensing; the main brake valve with the displacement sensing function is connected with a third electromagnetic valve, and the third electromagnetic valve is connected with a control port of the differential relay valve through an air path; the third electromagnetic valve is a two-position three-way normally-open electromagnetic valve.
5. An electronic brake system for air braking according to claim 1, wherein the master cylinder valves with displacement sensors are connected to 2 air cylinders, respectively, and the master cylinder valves with displacement sensors are connected to 2 sets of wheel brake air passages.
6. A control method based on the electronic brake system for air brake according to any one of claims 1 to 5, characterized by comprising the steps of:
the method comprises the following steps: judging whether the electronic braking system works normally, when the electronic braking system fails, all the electromagnetic valves are not electrified, and the belt-moving sensing type braking master valve directly controls the differential relay valve to supply air to the air chamber so as to realize braking; if the electronic braking system is normal, entering a step two;
step two: when the power is on, the third electromagnetic valve is not conducted; the controller detects the pedal depth and the pedal displacement rate of the master brake valve with displacement sensing to calculate the air pressure required by braking;
and the wheel speed sensor and the controller are used for judging the slip state of the vehicle tire to determine whether the processes of pressurization, pressure maintaining or pressure reducing are required to be carried out.
7. The control method of an electric brake system for air braking according to claim 6,
and (3) a pressurization process: only the first electromagnetic valve is electrified, the first electromagnetic valve is conducted, the air pressure of the air storage cylinder reaches a control port of the differential relay valve after passing through the first electromagnetic valve and the second electromagnetic valve, and the differential relay valve pressurizes the air chamber according to the control quantity;
and (3) pressure maintaining process: only the second electromagnetic valve is electrified, so that the second electromagnetic valve is not conducted; because the first electromagnetic valve is a normally closed electromagnetic valve, the first electromagnetic valve is not conducted, and the air pressure of the control end of the differential relay valve is kept unchanged at the moment, so that the pressure maintaining operation is realized;
and (3) decompression process: and powering off the first electromagnetic valve and the second electromagnetic valve, communicating the control port of the differential relay valve with the atmosphere at the moment, discharging the control air pressure, and releasing the brake.
Priority Applications (1)
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CN202111135631.0A CN113830055A (en) | 2021-09-27 | 2021-09-27 | Electronic braking system for pneumatic braking and control method |
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CN202111135631.0A CN113830055A (en) | 2021-09-27 | 2021-09-27 | Electronic braking system for pneumatic braking and control method |
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CN202111135631.0A Pending CN113830055A (en) | 2021-09-27 | 2021-09-27 | Electronic braking system for pneumatic braking and control method |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101117115A (en) * | 2006-08-05 | 2008-02-06 | 威伯科有限公司 | Electrically controlled brake system |
CN102745183A (en) * | 2012-07-11 | 2012-10-24 | 北京理工大学 | Energy-feedback active control type air braking system |
CN203920726U (en) * | 2014-02-24 | 2014-11-05 | 南京理工大学 | Integrated form automatic parking brake device |
CN106004463A (en) * | 2016-07-04 | 2016-10-12 | 吉林大学 | Brake control system of pure electric city bus and control method thereof |
CN106043263A (en) * | 2016-07-04 | 2016-10-26 | 吉林大学 | Intelligent braking control system of pure electric passenger car and control method of intelligent braking control system |
-
2021
- 2021-09-27 CN CN202111135631.0A patent/CN113830055A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101117115A (en) * | 2006-08-05 | 2008-02-06 | 威伯科有限公司 | Electrically controlled brake system |
CN102745183A (en) * | 2012-07-11 | 2012-10-24 | 北京理工大学 | Energy-feedback active control type air braking system |
CN203920726U (en) * | 2014-02-24 | 2014-11-05 | 南京理工大学 | Integrated form automatic parking brake device |
CN106004463A (en) * | 2016-07-04 | 2016-10-12 | 吉林大学 | Brake control system of pure electric city bus and control method thereof |
CN106043263A (en) * | 2016-07-04 | 2016-10-26 | 吉林大学 | Intelligent braking control system of pure electric passenger car and control method of intelligent braking control system |
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Application publication date: 20211224 |