CN108791253B - ESC automatic exhaust device and exhaust method thereof - Google Patents
ESC automatic exhaust device and exhaust method thereof Download PDFInfo
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- CN108791253B CN108791253B CN201810601470.1A CN201810601470A CN108791253B CN 108791253 B CN108791253 B CN 108791253B CN 201810601470 A CN201810601470 A CN 201810601470A CN 108791253 B CN108791253 B CN 108791253B
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000012530 fluid Substances 0.000 claims abstract description 76
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000011084 recovery Methods 0.000 claims abstract description 19
- 238000013022 venting Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 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
- B60T13/10—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
- B60T13/12—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 the fluid being liquid
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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
- B60T13/10—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
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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
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention relates to the technical field of automobile braking, in particular to an ESC automatic exhaust device and an exhaust method thereof. ESC self-bleeding device includes: the brake fluid automatic filling device comprises a first primary loop, a second primary loop, a first secondary loop, a second secondary loop, a brake fluid automatic filling kettle, a brake fluid recovery pipeline, an electromagnetic valve, a controller, a brake fluid storage kettle and a vacuum liquid storage tank; through the setting of solenoid valve and vacuum play fluid reservoir to set up first interface, second interface, third interface and fourth interface on the solenoid valve and be used for being connected with left rear wheel, left front wheel, right front wheel and right rear wheel, the solenoid valve can also control first primary circuit, second primary circuit, first second grade return circuit and second grade return circuit simultaneously, thereby can make the gas in primary circuit and the second grade return circuit discharge totally. The technical problem that the normal operation of an ESC system is influenced and the driving safety is threatened due to gas residue possibly existing in the traditional method for exhausting in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of automobile braking, in particular to an ESC automatic exhaust device and an exhaust method thereof.
Background
Most of the existing braking systems are X-type or II-type hydraulic braking systems, and the braking of a vehicle is realized by transmitting the force of a brake pedal through brake fluid. If gas exists in the braking system, the gas is compressed when the pressure is increased, so that the elastic behavior of a braking transmission passage is caused, the stroke of a brake pedal is increased, and the driving safety is greatly influenced. The national standard enforces that a vehicle is provided with an ABS or ESC system to increase driving safety, but ESC loop exhaust is complex, and the conventional method exhaust gas possibly has gas residue to influence the normal operation of the ESC system, thereby threatening the driving safety.
Disclosure of Invention
The invention aims to provide an ESC automatic exhaust device to solve the technical problem that the normal operation of an ESC system is influenced and the driving safety is threatened by gas residue possibly existing in the exhaust of a traditional method in the prior art.
The invention provides an ESC automatic exhaust device, comprising: the brake fluid automatic filling kettle comprises a primary loop, a secondary loop, a brake fluid automatic filling kettle, a brake fluid recovery pipeline, an electromagnetic valve, a controller, a brake fluid storage kettle and a vacuum liquid storage tank;
the brake fluid reservoir pot is communicated with the brake fluid reservoir pot, one end of the first secondary loop is communicated with the first primary loop close to one side of the right front wheel and the second primary loop close to one side of the right rear wheel, and one end of the second secondary loop is communicated with the first primary loop close to one side of the left rear wheel and the second primary loop close to one side of the left front wheel;
the brake fluid automatic filling kettle is arranged in the brake fluid storage kettle, the vacuum liquid storage kettle is communicated with one end of a brake fluid recovery pipeline, the other end of the brake fluid recovery pipeline is connected with one end of the electromagnetic valve, and the other end of the electromagnetic valve is provided with a first interface, a second interface, a third interface and a fourth interface which are used for being connected with the left rear wheel, the left front wheel, the right front wheel and the right rear wheel;
the first primary loop, the second primary loop, the first secondary loop, the second secondary loop and the electromagnetic valve are all electrically connected with the controller.
Further, the device also comprises a vacuum pump;
the vacuum pump is communicated with the vacuum liquid storage tank and is used for discharging air in the brake fluid recovery pipeline.
Furthermore, a first pressure limiting valve, a second pressure limiting valve, a first pressure increasing valve and a second pressure increasing valve are arranged in the first primary circuit;
one end of the first booster valve is connected with the left rear wheel through a pipeline, the other end of the first booster valve is connected with one end of the first pressure limiting valve through a pipeline, and the other end of the first pressure limiting valve is connected with the brake fluid storage pot;
one end of the second booster valve is connected with the right front wheel through a pipeline, the other end of the second booster valve is connected with the second pressure limiting valve through a pipeline, and the other end of the second pressure limiting valve is connected with the brake fluid liquid storage pot;
the first pressure limiting valve, the second pressure limiting valve, the first pressure increasing valve and the second pressure increasing valve are all electrically connected with the controller.
Further, a third pressure increasing valve and a fourth pressure increasing valve are arranged in the second primary loop;
one end of the third booster valve is connected with the left front wheel through a pipeline, and the other end of the third booster valve is communicated with a pipeline between the first booster valve and the first pressure limiting valve;
one end of the fourth booster valve is connected with the right rear wheel through a pipeline, and the other end of the fourth booster valve is communicated with a pipeline between the second booster valve and the second pressure limiting valve;
and the third pressure increasing valve and the fourth pressure increasing valve are electrically connected with the controller.
Furthermore, a first pressure reducing valve, a second pressure reducing valve, a first one-way valve, a first suction valve and a first pump body are arranged in the first secondary circuit;
one end of the first pressure reducing valve is communicated with a pipe body between the second booster valve and the right front wheel, one end of the second pressure reducing valve is communicated with a pipeline between the fourth booster valve and the right rear wheel, the other ends of the first pressure reducing valve and the second pressure reducing valve are connected with one end of the first one-way valve, the first pump body and the first suction valve are both communicated with the other end of the first one-way valve, and the other end of the first suction valve is communicated with the brake fluid liquid storage pot;
the first pressure reducing valve, the second pressure reducing valve, the first one-way valve and the first suction valve are all electrically connected with the controller.
Furthermore, a third pressure reducing valve, a fourth pressure reducing valve, a second one-way valve, a second suction valve and a second pump body are arranged in the second secondary circuit;
one end of the third pressure reducing valve is communicated with a pipe body between the third pressure increasing valve and the left front wheel, one end of the fourth pressure reducing valve is communicated with a pipe body between the first pressure increasing valve and the left rear wheel, the other ends of the third pressure reducing valve and the fourth pressure reducing valve are both connected with one end of the second one-way valve, the other end of the second one-way valve is communicated with the second pump body and the second suction valve, and one end, far away from the second one-way valve, of the second suction valve is communicated with the brake fluid reservoir;
and the third pressure reducing valve, the fourth pressure reducing valve, the second one-way valve and the second suction valve are electrically connected with the controller.
Furthermore, caliper exhaust bolts are respectively arranged on the left front wheel, the left rear wheel, the right front wheel and are connected with the first interface, the second interface, the third interface and the fourth interface of the electromagnetic valve through pipelines.
An ESC automatic exhaust method, have ESC automatic exhaust apparatus as above-mentioned, including the first-stage circuit exhaust method and second-stage circuit exhaust method;
the primary loop venting method includes the steps of;
firstly, opening a stopping exhaust bolt, and then opening a vacuum pump;
and sequentially opening a first interface, a second interface, a third interface and a fourth interface on the electromagnetic valve, wherein each interface is spaced for 30s, so that air in the first primary loop and the second primary loop is exhausted.
Further, the secondary circuit exhaust method comprises:
when 0< t <85s, the left front wheel is vented;
when t is more than 0 and less than 20s, the vacuum pump is opened, the electromagnetic valve is closed, the fourth pressure increasing valve and the second pressure limiting valve are opened, and the second pressure reducing valve and the first suction valve are closed;
when 20< t <25s, the first interface of the electromagnetic valve is opened, and the first pressure reducing valve is opened;
when 25< t <85s, closing the first pressure reducing valve and the first interface of the electromagnetic valve;
when 85< t <170s, the left front wheel is vented;
when 85< t <105s, the second interface of the electromagnetic valve is opened, and the fourth reducing valve is opened;
when 105< t <170s, the second interface of the electromagnetic valve is closed, and the fourth reducing valve is closed;
when 170< t <300s, the right front wheel exhausts;
when 170< t <175s, the third interface of the electromagnetic valve is opened, the first pressure increasing valve and the second pressure increasing valve are both closed, and the first pressure reducing valve and the third pressure reducing valve are opened;
when 175< t <180s, the second pressure increasing valve is opened, the first pressure reducing valve is closed, and the third pressure reducing valve is closed;
when 180< t <185s, when the first suction valve and the second suction valve are both opened for 1s and then closed for 0.5s, a reciprocating cycle is performed, and a motor for connecting the first pump body and the second pump body is turned on;
the second pressure increasing valve is closed, and the first pressure increasing valve is closed;
when 185< t <190s, the motor connecting the first pump body and the second pump body is turned off, the first suction valve is closed, and the second suction valve is closed;
when 190< t <193s, turn on the motor;
when 193< t <198s, the first pressure reducing valve is open and the second pressure reducing valve is closed;
when 198< t <203s, the first pressure reducing valve is closed and the second pressure reducing valve is open;
when 203< t <211s, the motor is opened, the first pressure reducing valve is opened, and the second pressure reducing valve is closed;
when 211< t <216s, the first pressure reducing valve is closed and the second pressure reducing valve is opened;
when 216< t <221s, the second pressure reducing valve is closed, and the motor is closed;
when 221< t <228s, the motor is opened, the first suction valve is opened for 1s and closed for 0.5s, and a reciprocating cycle is performed;
when 228< t <230s, the first suction valve is closed;
when 230< t <300s, closing the third interface of the motor and the electromagnetic valve;
when the time is 300< t <340s, the right front wheel exhausts, the motor is opened, and the fourth interface of the electromagnetic valve is opened;
wherein, when 303< t <308s, the fourth pressure reducing valve is opened and the third pressure reducing valve is closed;
when 308< t <313s, the fourth pressure reducing valve is closed and the third pressure reducing valve is open;
when 313< t <321s, the fourth pressure reducing valve is open and the third pressure reducing valve is closed;
when 321< t <326s, the fourth pressure reducing valve is closed and the third pressure reducing valve is open;
when 326< t <331s, the motor is turned off and the third pressure reducing valve is closed;
when 331< t <340s, turn on the motor;
when 331< t <338s, the second suction valve is opened for 1s and then closed for 0.5s, and reciprocating circulation is carried out;
when 338< t <340s, the second suction valve is closed and the solenoid valve fourth port is closed;
and when t is greater than 340, the motor is closed, the electromagnetic valve is closed, and the primary loop and the secondary loop are restored to the initial state.
The invention provides an ESC automatic exhaust device, comprising: the brake fluid automatic filling kettle comprises a primary loop, a secondary loop, a brake fluid automatic filling kettle, a brake fluid recovery pipeline, an electromagnetic valve, a controller, a brake fluid storage kettle and a vacuum liquid storage tank; the brake fluid reservoir pot is communicated with the brake fluid reservoir pot, one end of the first secondary loop is communicated with the first primary loop close to one side of the right front wheel and the second primary loop close to one side of the right rear wheel, and one end of the second secondary loop is communicated with the first primary loop close to one side of the left rear wheel and the second primary loop close to one side of the left front wheel; the brake fluid automatic filling kettle is arranged in the brake fluid storage kettle, the vacuum liquid storage kettle is communicated with one end of a brake fluid recovery pipeline, the other end of the brake fluid recovery pipeline is connected with one end of the electromagnetic valve, and the other end of the electromagnetic valve is provided with a first interface, a second interface, a third interface and a fourth interface which are used for being connected with the left rear wheel, the left front wheel, the right front wheel and the right rear wheel; the first primary loop, the second primary loop, the first secondary loop, the second secondary loop and the electromagnetic valve are all electrically connected with the controller. By adopting the scheme, the electromagnetic valve and the vacuum liquid outlet tank are arranged, the electromagnetic valve is provided with the first interface, the second interface, the third interface and the fourth interface which are used for being connected with the left rear wheel, the left front wheel, the right front wheel and the right rear wheel, and meanwhile, the electromagnetic valve can also control the first primary loop, the second primary loop, the first secondary loop and the second secondary loop, so that the gas in the primary loop and the second secondary loop can be discharged completely. The technical problem that the normal operation of an ESC system is influenced and the driving safety is threatened due to gas residue possibly existing in the traditional method for exhausting in the prior art is solved.
The beneficial effects of the ESC automatic exhaust method provided by the invention are the same as those of an ESC automatic exhaust device, and are not repeated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of an ESC automatic venting device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of an ESC auto-vent provided in accordance with an embodiment of the present invention;
fig. 3 is a flowchart of an ESC automatic venting method according to an embodiment of the present invention.
Icon: 1-automatic brake fluid filling pot; 2-a brake fluid recovery line; 3-an electromagnetic valve; 4-a vacuum liquid storage tank; 5-left rear wheel; 6-left front wheel; 7-the right front wheel; 8-the right rear wheel; 9-a first pressure limiting valve; 10-a second pressure limiting valve; 11-a first pressure increasing valve; 12-a second pressure increasing valve; 13-a first pressure relief valve; 14-a second pressure relief valve; 15-a first one-way valve; 16-a first suction valve; 17-a first pump body; 18-a third pressure relief valve; 19-a fourth pressure reducing valve; 20-a second one-way valve; 21-a second suction valve; 22-a second pump body; 23-a third pressure increasing valve; 24-a fourth pressure increasing valve; 25-vacuum pump.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-3, the present invention provides an ESC automatic venting apparatus, comprising: the brake fluid automatic filling device comprises a primary loop, a secondary loop, a brake fluid automatic filling kettle 1, a brake fluid recovery pipeline 2, an electromagnetic valve 3, a controller, a brake fluid storage kettle and a vacuum liquid storage tank 4; the primary circuit comprises a first primary circuit and a second primary circuit, the secondary circuit comprises a first secondary circuit and a second secondary circuit, one end of the first primary circuit is connected with the left rear wheel 5 and the right front wheel 7, the other end of the first primary circuit is communicated with the brake fluid reservoir pot, one end of the second primary circuit is used for being connected with the right rear wheel 8 and the left front wheel 6, the other end of the second primary circuit is communicated with the brake fluid reservoir pot, one end of the first secondary circuit is communicated with the first primary circuit close to one side of the right front wheel 7 and the second primary circuit close to one side of the right rear wheel 8, and one end of the second secondary circuit is communicated with the first primary circuit close to the left rear wheel 5 and the second primary circuit close to one side of the left front wheel 6; the brake fluid automatic filling kettle 1 is arranged in the brake fluid storage kettle, the vacuum liquid storage kettle 4 is communicated with one end of a brake fluid recovery pipeline 2, the other end of the brake fluid recovery pipeline is connected with one end of the electromagnetic valve 3, and the other end of the electromagnetic valve 3 is provided with a first interface, a second interface, a third interface and a fourth interface which are used for being connected with a left rear wheel 5, a left front wheel 6, a right front wheel 7 and a right rear wheel 8; the first primary loop, the second primary loop, the first secondary loop, the second secondary loop and the electromagnetic valve 3 are all electrically connected with the controller. By adopting the scheme, the electromagnetic valve 3 and the vacuum liquid outlet tank are arranged, the electromagnetic valve 3 is provided with the first interface, the second interface, the third interface and the fourth interface which are used for being connected with the left rear wheel 5, the left front wheel 6, the right front wheel 7 and the right rear wheel 8, and meanwhile, the electromagnetic valve 3 can also control the first primary loop, the second primary loop, the first secondary loop and the second secondary loop, so that the gas in the primary loop and the second secondary loop can be discharged completely. The technical problem that the normal operation of an ESC system is influenced and the driving safety is threatened due to gas residue possibly existing in the traditional method for exhausting in the prior art is solved.
The automatic brake fluid filling kettle 1 is arranged above the brake fluid storage kettle, a filling port of the automatic brake fluid filling kettle 1 is inverted into the brake fluid storage kettle of the automobile, the filling port of the automatic brake fluid filling kettle needs to be immersed below the liquid level, and when the brake fluid level in the brake fluid storage kettle descends, oil is automatically replenished.
On the basis of the above embodiment, further, a vacuum pump 25 is further included;
the vacuum pump 25 is communicated with the vacuum liquid storage tank 4, and the vacuum pump 25 is used for discharging air in the brake fluid recovery pipeline 2.
In this embodiment, the vacuum pump 25 can recover the brake fluid in the brake fluid recovery pipeline 2 and the left and right rear wheels 5, 6, 7 and 8, and simultaneously the vacuum pump 25 is opened to reach a pressure value of 0.2Pa, and the brake fluid recovery pipeline is left standing for five minutes to check that no pressure leakage is connected to the left and right rear wheels 5, 6, 7 and 8.
On the basis of the above embodiment, further, a first pressure limiting valve 9, a second pressure limiting valve 10, a first pressure increasing valve 11 and a second pressure increasing valve 12 are arranged in the first primary circuit;
one end of the first booster valve 11 is connected with the left rear wheel 5 through a pipeline, the other end of the first booster valve 11 is connected with one end of the first pressure limiting valve 9 through a pipeline, and the other end of the first pressure limiting valve 9 is connected with the brake fluid storage pot;
one end of the second booster valve 12 is connected with the right front wheel 7 through a pipeline, the other end of the second booster valve 12 is connected with the second pressure limiting valve 10 through a pipeline, and the other end of the second pressure limiting valve 10 is connected with the brake fluid liquid storage pot;
the first pressure limiting valve 9, the second pressure limiting valve 10, the first pressure increasing valve 11 and the second pressure increasing valve 12 are all electrically connected with the controller.
Further, a third pressure increasing valve 23 and a fourth pressure increasing valve 24 are arranged in the second primary loop;
one end of the third booster valve 23 is connected with the left front wheel 6 through a pipeline, and the other end of the third booster valve 23 is communicated with a pipeline between the first booster valve 11 and the first pressure limiting valve 9;
one end of the fourth booster valve 24 is connected with the right rear wheel 8 through a pipeline, and the other end of the fourth booster valve 24 is communicated with a pipeline between the second booster valve 12 and the second pressure limiting valve 10;
the third booster valve 23 and the fourth booster valve 24 are both electrically connected to the controller.
Further, a first pressure reducing valve 13, a second pressure reducing valve 14, a first check valve 15, a first suction valve 16 and a first pump body 17 are arranged in the first secondary circuit;
one end of the first pressure reducing valve 13 is communicated with a pipe body between the second booster valve 12 and the right front wheel 7, one end of the second pressure reducing valve 14 is communicated with a pipeline between the fourth booster valve 24 and the right rear wheel 8, the other ends of the first pressure reducing valve 13 and the second pressure reducing valve 14 are connected with one end of the first one-way valve 15, the first pump body 17 and the first suction valve 16 are both communicated with the other end of the first one-way valve 15, and the other end of the first suction valve 16 is communicated with the brake fluid reservoir;
the first pressure reducing valve 13, the second pressure reducing valve 14, the first check valve 15 and the first suction valve 16 are all electrically connected with the controller.
Further, a third pressure reducing valve 18, a fourth pressure reducing valve 19, a second one-way valve 20, a second suction valve 21 and a second pump body 22 are arranged in the second secondary circuit;
one end of the third pressure reducing valve 18 is communicated with a pipe body between the third pressure increasing valve 23 and the left front wheel 6, one end of the fourth pressure reducing valve 19 is communicated with a pipe body between the first pressure increasing valve 11 and the left rear wheel 5, the other ends of the third pressure reducing valve 18 and the fourth pressure reducing valve 19 are both connected with one end of the second one-way valve 20, the other end of the second one-way valve 20 is communicated with the second pump body 22 and the second suction valve 21, and one end, away from the second one-way valve 20, of the second suction valve 21 is communicated with the brake fluid reservoir;
the third pressure reducing valve 18, the fourth pressure reducing valve 19, the second check valve 20 and the second suction valve 21 are all electrically connected with the controller.
In this embodiment, the first primary circuit, the second primary circuit, the first secondary circuit and the second primary circuit are respectively provided with a first pressure limiting valve 9, a second pressure limiting valve 10, a first pressure increasing valve 11, a second pressure increasing valve 12, a third pressure increasing valve 23, a fourth pressure increasing valve 24, a first pressure reducing valve 13, a second pressure reducing valve 14, a first one-way valve 15, a first suction valve 16, a third pressure reducing valve, a fourth pressure reducing valve 19, a second one-way valve 20 and a second suction valve 21 which are electrically connected with the controller, and the controller also controls the opening and closing of the first interface, the second interface, the third interface and the fourth interface on the solenoid valve 3, so that the gas in the pipelines in the first primary circuit, the second primary circuit, the first secondary circuit and the second primary circuit can be discharged into the vacuum liquid storage tank 4 through the solenoid valve 3.
On the basis of the above embodiment, further, caliper exhaust bolts are respectively arranged on the left front wheel 6, the left rear wheel 5, the right front wheel 7 and the right front wheel 7, and the caliper exhaust bolts are connected with the first interface, the second interface, the third interface and the fourth interface of the electromagnetic valve 3 through pipelines.
In this embodiment, caliper exhaust bolts are respectively disposed on the left front wheel 6, the left rear wheel 5, the right front wheel 7, and the caliper exhaust bolts are connected to the first interface, the second interface, the third interface, and the fourth interface of the electromagnetic valve 3 through pipelines, so that the left front wheel 6, the left rear wheel 5, the right front wheel 7, and the right front wheel 7 are stably connected to the electromagnetic valve 3.
The ESC automatic exhaust method provided by the embodiment of the invention has the ESC automatic exhaust device, and comprises a primary loop exhaust method and a secondary loop exhaust method;
the primary loop venting method includes the steps of;
the locking exhaust bolt is opened first, and then the vacuum pump 25 is opened;
sequentially opening a first interface, a second interface, a third interface and a fourth interface on the electromagnetic valve 3, wherein each interface is spaced for 30s, so as to discharge air in the first primary loop and the second primary loop;
further, the secondary circuit exhaust method comprises:
when 0< t <85s, the left front wheel 6 is exhausted;
wherein, when 0< t <20s, the vacuum pump 25 is opened, the electromagnetic valve 3 is closed, the fourth pressure increasing valve 24 and the second pressure limiting valve 10 are opened, and the second pressure reducing valve 14 and the first suction valve 16 are closed;
when 20< t <25s, the first interface of the electromagnetic valve 3 is opened, and the first pressure reducing valve 13 is opened;
when 25< t <85s, closing the first pressure reducing valve 13 and the first interface of the electromagnetic valve 3;
when 85< t <170s, the left front wheel 6 is exhausted;
wherein, when 85< t <105s, the second port of the electromagnetic valve 3 is opened, and the fourth reducing valve 19 is opened;
when 105< t <170s, the second port of the solenoid valve 3 is closed and the fourth pressure reducing valve 19 is closed;
when 170< t <300s, the right front wheel 7 exhausts;
wherein, when 170< t <175s, the third interface of the electromagnetic valve 3 is opened, the first pressure increasing valve 11 and the second pressure increasing valve 12 are both closed, and the first pressure reducing valve 13 and the third pressure reducing valve 18 are opened;
when 175< t <180s, the second pressure increasing valve 12 is opened, the first pressure increasing valve 11 is opened, the first pressure reducing valve 13 is closed, and the third pressure reducing valve 18 is closed;
when 180< t <185s, when the first suction valve 16 and the second suction valve 21 are both opened for 1s and then closed for 0.5s, a reciprocating cycle is performed, and the motor for connecting the first pump 17 and the second pump 22 is turned on;
the second pressure-increasing valve 12 is closed, and the first pressure-increasing valve 11 is closed;
when 185< t <190s, the motor for connecting the first pump body 17 and the second pump body 22 is turned off, the first suction valve 16 is closed, and the second suction valve 21 is closed;
when 190< t <193s, turn on the motor;
when 193< t <198s, the first pressure reducing valve 13 is opened and the second pressure reducing valve 14 is closed;
when 198< t <203s, the first pressure reducing valve 13 is closed and the second pressure reducing valve 14 is opened;
when 203< t <211s, the motor is opened, the first pressure reducing valve 13 is opened, and the second pressure reducing valve 14 is closed;
when 211< t <216s, the first pressure reducing valve 13 is closed, and the second pressure reducing valve 14 is opened;
when 216< t <221s, the second pressure reducing valve 14 is closed, turning off the motor;
when 221< t <228s, the motor is turned on, the first suction valve 16 is opened for 1s, and is closed for 0.5s, and a reciprocating cycle is performed;
when 228< t <230s, the first suction valve 16 is closed;
when 230< t <300s, closing the third interface of the motor and the electromagnetic valve 3;
when the time is 300< t <340s, the right front wheel 7 exhausts, the motor is opened, and the fourth interface of the electromagnetic valve 3 is opened;
wherein, when 303< t <308s, the fourth pressure reducing valve 19 is opened and the third pressure reducing valve 18 is closed;
when 308< t <313s, the fourth pressure reducing valve 19 is closed and the third pressure reducing valve 18 is opened;
when 313< t <321s, the fourth pressure reducing valve 19 is opened and the third pressure reducing valve 18 is closed;
when 321< t <326s, the fourth pressure reducing valve 19 is closed and the third pressure reducing valve 18 is opened;
when 326< t <331s, the motor is turned off and the third pressure reducing valve 18 is closed;
when 331< t <340s, turn on the motor;
when 331< t <338s, the second suction valve 21 is opened for 1s and then closed for 0.5s, and a reciprocating cycle is performed;
when 338< t <340s, the second suction valve 21 is closed and the fourth port of the solenoid valve 3 is closed;
when t >340, the motor is closed, the electromagnetic valve 3 is closed, and the primary loop and the secondary loop are restored to the initial state. So as to exhaust the gas in the first primary loop, the second primary loop, the first secondary loop and the second loop.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. An ESC auto-venting device, comprising: the brake fluid automatic filling kettle comprises a primary loop, a secondary loop, a brake fluid automatic filling kettle, a brake fluid recovery pipeline, an electromagnetic valve, a controller, a brake fluid storage kettle and a vacuum liquid storage tank;
the brake fluid brake system comprises a brake fluid reservoir, a primary loop, a secondary loop and a brake fluid reservoir, wherein the primary loop comprises a first primary loop and a second primary loop, one end of the first primary loop is connected with a left rear wheel and a right front wheel, the other end of the first primary loop is communicated with the brake fluid reservoir, one end of the second primary loop is used for being connected with the right rear wheel and the left front wheel, the other end of the second primary loop is communicated with the brake fluid reservoir, one end of the first secondary loop is communicated with the first primary loop close to one side of the right front wheel and the second primary loop close to one side of the right rear wheel, and one end of the second secondary loop is communicated with the first primary loop close to the left rear wheel and the second primary loop close to one side of the left front wheel;
the brake fluid automatic filling kettle is arranged in the brake fluid storage kettle, the vacuum liquid storage kettle is communicated with one end of a brake fluid recovery pipeline, the other end of the brake fluid recovery pipeline is connected with one end of the electromagnetic valve, and the other end of the electromagnetic valve is provided with a first interface, a second interface, a third interface and a fourth interface which are used for being connected with the left rear wheel, the left front wheel, the right front wheel and the right rear wheel;
the first primary loop, the second primary loop, the first secondary loop, the second secondary loop and the electromagnetic valve are all electrically connected with the controller.
2. The ESC automatic venting device according to claim 1, further comprising a vacuum pump;
the vacuum pump is communicated with the vacuum liquid storage tank and is used for discharging air in the brake fluid recovery pipeline.
3. The ESC automatic vent of claim 2, wherein a first pressure limiting valve, a second pressure limiting valve, a first pressurization valve and a second pressurization valve are disposed in the first primary loop;
one end of the first booster valve is connected with the left rear wheel through a pipeline, the other end of the first booster valve is connected with one end of the first pressure limiting valve through a pipeline, and the other end of the first pressure limiting valve is connected with the brake fluid storage pot;
one end of the second booster valve is connected with the right front wheel through a pipeline, the other end of the second booster valve is connected with the second pressure limiting valve through a pipeline, and the other end of the second pressure limiting valve is connected with the brake fluid liquid storage pot;
the first pressure limiting valve, the second pressure limiting valve, the first pressure increasing valve and the second pressure increasing valve are all electrically connected with the controller.
4. The ESC auto vent of claim 3, wherein a third boost valve and a fourth boost valve are provided in the second primary loop;
one end of the third booster valve is connected with the left front wheel through a pipeline, and the other end of the third booster valve is communicated with a pipeline between the first booster valve and the first pressure limiting valve;
one end of the fourth booster valve is connected with the right rear wheel through a pipeline, and the other end of the fourth booster valve is communicated with a pipeline between the second booster valve and the second pressure limiting valve;
and the third pressure increasing valve and the fourth pressure increasing valve are electrically connected with the controller.
5. The ESC automatic vent of claim 4, wherein a first pressure relief valve, a second pressure relief valve, a first check valve, a first suction valve and a first pump are disposed in the first secondary circuit;
one end of the first pressure reducing valve is communicated with a pipe body between the second booster valve and the right front wheel, one end of the second pressure reducing valve is communicated with a pipeline between the fourth booster valve and the right rear wheel, the other ends of the first pressure reducing valve and the second pressure reducing valve are connected with one end of the first one-way valve, the first pump body and the first suction valve are both communicated with the other end of the first one-way valve, and the other end of the first suction valve is communicated with the brake fluid liquid storage pot;
the first pressure reducing valve, the second pressure reducing valve, the first one-way valve and the first suction valve are all electrically connected with the controller.
6. The ESC automatic vent of claim 5, wherein a third relief valve, a fourth relief valve, a second check valve, a second suction valve and a second pump are provided in the second secondary circuit;
one end of the third pressure reducing valve is communicated with a pipe body between the third pressure increasing valve and the left front wheel, one end of the fourth pressure reducing valve is communicated with a pipe body between the first pressure increasing valve and the left rear wheel, the other ends of the third pressure reducing valve and the fourth pressure reducing valve are both connected with one end of the second one-way valve, the other end of the second one-way valve is communicated with the second pump body and the second suction valve, and one end, far away from the second one-way valve, of the second suction valve is communicated with the brake fluid reservoir;
and the third pressure reducing valve, the fourth pressure reducing valve, the second one-way valve and the second suction valve are electrically connected with the controller.
7. The ESC automatic vent device of claim 6, wherein the left front wheel, the left rear wheel, the right front wheel and the right front wheel are respectively provided with a caliper exhaust bolt, and the caliper exhaust bolts are connected with the first interface, the second interface, the third interface and the fourth interface of the electromagnetic valve through pipelines.
8. An ESC automatic exhaust method, characterized in that, the ESC automatic exhaust device of any one of claims 1-7 is provided, comprising a primary circuit exhaust method and a secondary circuit exhaust method;
the primary loop venting method includes the steps of;
firstly, opening a stopping exhaust bolt, and then opening a vacuum pump;
and sequentially opening a first interface, a second interface, a third interface and a fourth interface on the electromagnetic valve, wherein each interface is spaced for 30s, so that air in the first primary loop and the second primary loop is exhausted.
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| CN201810601470.1A CN108791253B (en) | 2018-06-12 | 2018-06-12 | ESC automatic exhaust device and exhaust method thereof |
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| CN201810601470.1A CN108791253B (en) | 2018-06-12 | 2018-06-12 | ESC automatic exhaust device and exhaust method thereof |
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| CN108791253B true CN108791253B (en) | 2020-01-07 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111307473B (en) * | 2020-03-24 | 2021-03-05 | 吉林大学 | Automatic exhaust device and exhaust method of integrated electro-hydraulic brake |
| CN112193228B (en) * | 2020-10-23 | 2024-08-27 | 上海拿森汽车电子有限公司 | Vehicle, electronic stability control system thereof, exhaust method and exhaust device |
| CN113573962B (en) * | 2021-01-12 | 2022-08-26 | 华为技术有限公司 | Hydraulic brake system, exhaust control method and controller thereof, and vehicle |
| CN113002517B (en) * | 2021-03-26 | 2022-04-22 | 中国第一汽车股份有限公司 | Exhaust device and exhaust method of brake electric control system test bed |
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Denomination of invention: ESC automatic exhaust device and its exhaust method Effective date of registration: 20220629 Granted publication date: 20200107 Pledgee: Tianjin SME Credit Financing Guarantee Center Pledgor: TIANJIN TRINOVA AUTOMOTIVE TECHNOLOGY Co.,Ltd. Registration number: Y2022120000038 |
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Date of cancellation: 20231211 Granted publication date: 20200107 Pledgee: Tianjin SME Credit Financing Guarantee Center Pledgor: TIANJIN TRINOVA AUTOMOTIVE TECHNOLOGY Co.,Ltd. Registration number: Y2022120000038 |