CN112248993B - Exhaust device of hydraulic braking system, hydraulic braking system and vehicle - Google Patents
Exhaust device of hydraulic braking system, hydraulic braking system and vehicle Download PDFInfo
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- CN112248993B CN112248993B CN202011066106.3A CN202011066106A CN112248993B CN 112248993 B CN112248993 B CN 112248993B CN 202011066106 A CN202011066106 A CN 202011066106A CN 112248993 B CN112248993 B CN 112248993B
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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
- 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
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Abstract
The present disclosure relates to an exhaust apparatus of a hydraulic brake system, and a vehicle, the exhaust apparatus including: the exhaust passage is provided with an inlet and an outlet, and the inlet is connected with the oil inlet passage and positioned below the outlet; the oil inlet switch valve is arranged in the oil inlet channel; the oil return switch valve is arranged in the oil return channel; the exhaust control unit controls the opening or closing of the oil inlet switch valve and the oil return switch valve respectively; the exhaust device has a first working mode, a second working mode and a third working mode, wherein in the first working mode, the oil inlet switch valve is opened, and the oil return switch valve is closed, in the second working mode, the oil inlet switch valve is closed, and the oil return switch valve is opened, and in the third working mode, the oil inlet switch valve and the oil return switch valve are both closed. The exhaust device can solve the technical problems that the exhaust efficiency of a hydraulic brake system is not high and the maintenance cost is high.
Description
Technical Field
The disclosure relates to the technical field of vehicle equipment, in particular to an exhaust device of a hydraulic brake system, the hydraulic brake system and a vehicle.
Background
The hydraulic brake system is used for braking a vehicle to reduce the speed of the vehicle to stop, the requirement on the hydraulic brake system of the vehicle is higher and higher as the running speed of the vehicle is higher and higher, and the hydraulic brake is widely used due to the advantages of sensitive response, no lag and the like. Brake fluid in the hydraulic brake system can generate bubbles at high temperature, and the gas can be compressed, so that the stroke of a brake pedal is lengthened, and even the hydraulic brake system fails. In the related art, generally, a structure of a bleeding screw is connected to an exhaust port of a hydraulic brake caliper, the bleeding screw needs to be screwed manually during bleeding, so that bleeding efficiency is not high, bleeding needs to be carried out to a maintenance point, and maintenance cost of a hydraulic brake system is increased.
Disclosure of Invention
The purpose of the present disclosure is to provide an exhaust apparatus of a hydraulic brake system, which can solve the technical problems of low exhaust efficiency and high maintenance cost of the hydraulic brake system.
In order to achieve the above object, the present disclosure provides an exhaust apparatus of a hydraulic brake system, the exhaust apparatus including: a main body having an oil inlet end portion, an oil return end portion and an exhaust end portion, and having formed therein an exhaust passage located in the exhaust end portion, an oil inlet passage extending from an end surface of the oil inlet end portion to communicate with the exhaust passage, and an oil return passage extending from an end surface of the oil return end portion to communicate with the oil inlet passage, the exhaust passage having an inlet and an outlet, the inlet being connected with the oil inlet passage and located below the outlet; an oil inlet on-off valve provided in an oil inlet passage of the oil inlet end portion; an oil return switching valve provided in an oil return passage of the oil return end portion; the exhaust control unit is electrically connected with the oil inlet switch valve and the oil return switch valve so as to control the opening or closing of the oil inlet switch valve and the oil return switch valve respectively; wherein, exhaust apparatus has first mode, second mode and third mode first mode, the oil feed ooff valve is opened just the oil return ooff valve closes the second mode, the oil feed ooff valve closes just the oil return ooff valve opens the third mode, the oil feed ooff valve with the oil return ooff valve all closes.
Optionally, the exhaust device comprises an exhaust assembly disposed in the exhaust channel, the exhaust assembly comprising a floating block that is movable up and down in the exhaust channel with an exhaust gap between the floating block and a channel wall of the exhaust channel.
Optionally, the exhaust apparatus includes a limit switch arranged in the exhaust passage, the limit switch is electrically connected with the exhaust control unit, when the floating block rises to the position where the limit switch is located, the limit switch sends a signal in place, and the exhaust control unit controls the opening and closing of the oil inlet switch valve and the oil return switch valve according to the signal in place, so that the exhaust apparatus is switched to the second working mode.
Optionally, the exhaust control unit controls the backflow switching valve to close after a preset time lag after the exhaust apparatus is switched to the second operation mode.
Optionally, the exhaust assembly includes an elastic restoring member connected to the floating block, and the elastic restoring member provides a downward elastic force to the floating block.
Optionally, the exhaust assembly comprises a one-way valve disposed at the outlet, the one-way valve allowing gas in the exhaust passage to pass through the outlet.
Optionally, the exhaust apparatus includes with the control switch that the exhaust control unit electricity is connected, the exhaust control unit basis control switch's turn-on signal control oil feed ooff valve with the switching of oil return ooff valve, so that the exhaust apparatus follows the third mode of operation switches to first mode of operation, or, the exhaust control unit basis control switch's stop signal control oil feed ooff valve with the switching of oil return ooff valve, so that the exhaust apparatus switches to the third mode of operation.
Optionally, the exhaust control unit is configured to receive a tread signal indicating a brake pedal state, and the exhaust control unit controls opening and closing of the oil inlet switch valve and the oil return switch valve according to the opening signal and the tread signal indicating that the brake pedal is in a braking state, so that the exhaust apparatus is switched from the third operating mode to the first operating mode; and the exhaust control unit controls the opening and closing of the oil inlet switch valve and the oil return switch valve according to the opening signal and a treading signal indicating that a brake pedal is in a non-braking state, so that the exhaust device is switched to the third working mode.
According to a second aspect of the present disclosure, there is provided a hydraulic brake system including a brake caliper, the hydraulic brake system including the exhaust apparatus of the hydraulic brake system as described above, the oil-intake end portion of the main body being detachably mounted in an exhaust port of the brake caliper.
According to a third aspect of the present disclosure, a vehicle is provided, comprising a hydraulic brake system as described above.
Through the technical scheme, in the exhaust device of the hydraulic braking system provided by the disclosure, the oil inlet channel is respectively communicated with the exhaust channel and the oil return channel, in the first working mode, hydraulic oil in the hydraulic braking system can enter the oil inlet channel and the oil return channel, the oil return switch valve can prevent the hydraulic oil from flowing out of the oil return channel, and because the inlet is positioned below the outlet, bubbles in the hydraulic oil can escape upwards to form hydraulic oil and be discharged through the outlet, so that the exhaust device disclosed by the disclosure can discharge gas in the hydraulic oil, in the second working mode, the oil inlet channel stops feeding oil, the hydraulic oil in the main body can flow out through the oil return channel, in the third working mode, the oil return switch valve is closed, namely the exhaust device can have exhaust circulation, and the exhaust device sequentially passes through the second working mode and the third working mode from the first working mode, the exhaust control unit can control the opening or closing of the oil inlet switch valve and the oil return switch valve, namely, the working mode of the exhaust device can be controlled, so that the exhaust device disclosed by the invention can automatically exhaust the hydraulic oil, namely, the mode of manually exhausting through an air exhausting screw in the prior art is replaced, the exhaust efficiency can be improved, and meanwhile, the maintenance cost of the hydraulic brake system is reduced.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a schematic structural diagram of an exhaust device of a hydraulic braking system provided in accordance with an embodiment of the present disclosure, wherein the exhaust device is in a third operating mode;
FIG. 2 is a schematic structural diagram of an exhaust device of a hydraulic braking system provided in accordance with an embodiment of the present disclosure, wherein the exhaust device is in a first operating mode;
FIG. 3 is a schematic structural diagram of an exhaust device of a hydraulic braking system according to an embodiment of the present disclosure, wherein the exhaust device is in a mode when switching from a first operating mode to a second operating mode;
FIG. 4 is a schematic structural diagram of an exhaust device of a hydraulic braking system provided in accordance with an embodiment of the present disclosure, wherein the exhaust device is in a second operating mode.
Description of the reference numerals
1-main body, 11-exhaust channel, 12-oil inlet channel, 13-oil return channel, 21-exhaust control unit, 22-oil inlet switch valve, 23-oil return switch valve, 24-limit switch, 31-floating block, 32-elastic reset piece, 4-one-way valve and 5-control switch.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise stated, the terms of orientation such as "upper and lower" are defined based on fig. 1, and refer to the drawing direction of fig. 1, and "inner and outer" refer to the inner core and the outer core of the profile of each component. The terms "first and second" are used herein to distinguish one element from another, and are not necessarily order nor importance. In addition, in the case where a reverse description is not made, the same reference numerals in different drawings denote the same or similar elements, and the disclosure will not be described herein.
According to an embodiment of the present disclosure, there is provided an exhaust apparatus of a hydraulic brake system, an example of which is shown in fig. 1 to 4, and referring to fig. 1 to 4, the exhaust apparatus including: a main body 1, wherein the main body 1 is provided with an oil inlet end part, an oil return end part and an air outlet end part, an air outlet channel 11 positioned in the air outlet end part, an oil inlet channel 12 extending from the end surface of the oil inlet end part to be communicated with the air outlet channel 11 and an oil return channel 13 extending from the end surface of the oil return end part to be communicated with the oil inlet channel 12 are formed in the main body, the air outlet channel 11 is provided with an inlet and an outlet, and the inlet is connected with the oil inlet channel 12 and positioned below the outlet; an oil-in switching valve 22, the oil-in switching valve 22 being provided in the oil-in passage 12 of the oil-in end portion; an oil return switching valve 23, the oil return switching valve 23 being provided in the oil return passage 13 of the oil return end portion; and an exhaust control unit 21, where the exhaust control unit 21 is electrically connected to the oil inlet switch valve 22 and the oil return switch valve 23 to control the respective opening or closing of the oil inlet switch valve 22 and the oil return switch valve 23; wherein, exhaust apparatus has first mode, second mode and third mode first mode, oil feed ooff valve 22 opens just oil return ooff valve 23 closes the second mode, oil feed ooff valve 22 closes just oil return ooff valve 23 opens the third mode, oil feed ooff valve 22 with oil return ooff valve 23 all closes.
Through the technical scheme, in the exhaust device of the hydraulic braking system provided by the disclosure, the oil inlet channel 12 is respectively communicated with the exhaust channel 11 and the oil return channel 13, in the first working mode, hydraulic oil in the hydraulic braking system can enter the oil inlet channel 12 and the oil return channel 13, the oil return switch valve 23 can prevent the hydraulic oil from flowing out of the oil return channel 13, and because the inlet is positioned below the outlet, bubbles in the hydraulic oil can escape upwards to form the hydraulic oil and be discharged through the outlet, and further, the exhaust device can discharge gas in the hydraulic oil, in the second working mode, the oil inlet channel 12 stops feeding oil, the hydraulic oil in the main body 1 can flow out through the oil return channel 13, in the third working mode, the oil return switch valve 23 is closed, namely, the exhaust device can have exhaust circulation, and sequentially passes through the second working mode and the third working mode from the first working mode, the exhaust control unit 21 can control opening or closing of the oil inlet switch valve 22 and the oil return switch valve 23, namely, the working mode of the exhaust device can be controlled, so that the exhaust device disclosed by the invention can automatically realize exhaust of hydraulic oil, namely, a mode of manual air bleeding through a bleeding screw in the past is replaced, the exhaust efficiency can be improved, meanwhile, the maintenance cost of the hydraulic braking system is reduced, in addition, the exhaust rate of gas in the hydraulic oil can be improved through multiple exhaust cycles, and the braking efficiency of the hydraulic braking system is effectively ensured.
It should be noted that the oil inlet passage 12 in the present disclosure may be connected to an exhaust port of a brake caliper in a hydraulic brake system, and the oil return passage 13 may be connected to an oil storage tank, which is not limited by the present disclosure. In addition, the outlet of the exhaust passage 11 may communicate with the atmosphere to exhaust the gas in the hydraulic oil to the atmosphere.
In the embodiment of the present disclosure, referring to fig. 1 to 4, the exhaust apparatus includes an exhaust assembly disposed in the exhaust passage 11, and the exhaust assembly may include a floating block 31, and the floating block 31 may be movable up and down in the exhaust passage 11 with an exhaust gap between itself and a passage wall of the exhaust passage 11. Here, in the first mode of operation, hydraulic oil can be gradually upwards promote floating block 31, and the gas in the hydraulic oil can be discharged through exhaust clearance oil export, and in the second mode of operation, hydraulic oil discharges via oil return channel 13, and floating block 31 falls back gradually, and this floating block 31's setting can provide the exhaust clearance for gaseous discharge, has blockked hydraulic oil simultaneously and has shoved to the export, has improved the stability of exhaust apparatus work. Of course, according to other embodiments, the exhaust assembly may include a gas-liquid separation structure that allows gas to flow to the outlet and blocks hydraulic oil from flowing to the outlet, which is not limited by the present disclosure.
In some embodiments of the present disclosure, referring to fig. 1 to 4, the exhaust apparatus may include a limit switch 24 disposed in the exhaust passage 11, the limit switch 24 is electrically connected to the exhaust control unit 21, when the floating block 31 rises to a position where the limit switch 24 is located, the limit switch 24 sends an in-position signal, and the exhaust control unit 21 controls the opening and closing of the oil inlet switch valve 22 and the oil return switch valve 23 according to the in-position signal, so that the exhaust apparatus switches to the second operation mode. Like this, after hydraulic oil promoted floating block 31 and rises to contact with limit switch 24, exhaust control unit 21 control oil feed ooff valve 22 and close, and oil return ooff valve 23 opens, and this limit switch 24 plays on the one hand and makes exhaust apparatus by first mode automatic switch into the second mode, and on the other hand makes the height of hydraulic oil not higher than limit switch 24, reduces or even avoids the probability that hydraulic oil revealed from the export. According to some embodiments, referring to fig. 1 to 4, the oil inlet channel 12 may extend in a vertical direction, so that the escape rate of gas from hydraulic oil can be increased, and in the second operation mode, the exhaust amount of the exhaust device can be increased, and of course, the oil inlet channel 12 may also extend in an upward inclined manner, which is not limited by the present disclosure.
In some embodiments of the present disclosure, the exhaust control unit 21 controls the backflow switching valve 23 to be closed with a delay of a preset time after the exhaust apparatus is switched to the second operation mode. The preset time is used to allow the hydraulic oil in the main body 1 to partially flow out of the main body 1 and to automatically switch the second operation mode to the third operation mode, and to improve the degree of automation of the exhaust apparatus. Here, the preset time should be such that the float 31 can fall back to the initial position to ensure that the exhaust apparatus can be normally switched to the first operation mode.
In some embodiments of the present disclosure, referring to fig. 1 to 4, the exhaust assembly may include an elastic restoring member 32 connected to the floating block 31, and the elastic restoring member 32 provides a downward elastic force to the floating block 31 to ensure that the floating block 31 can smoothly fall back to an initial position, so as to ensure a normal switching from the first operation mode to the second operation mode in a next cycle. Here, the elastic restoring member 32 may be configured as a compression spring, to which the present disclosure is not limited.
In some embodiments of the present disclosure, referring to fig. 1-4, the vent assembly may include a one-way valve 4 disposed at an outlet, the one-way valve 4 allowing gas in the vent passage 11 to pass through the outlet. Here, the check valve 4 can block the outside atmosphere and dust from entering the main body, thereby contaminating the hydraulic oil. In addition, in the embodiment of the present disclosure where the check valve 4 is disposed at the outlet, the oil return channel 13 may be connected to an oil storage tank, and the pressure in the oil storage tank may be equal to the atmospheric pressure, so as to ensure that the hydraulic oil in the main body 1 can smoothly flow out of the main body 1 through the action of gravity.
In the embodiment of the present disclosure, referring to fig. 1 to 4, the exhaust apparatus may include a control switch 5 electrically connected to the exhaust control unit 21, the exhaust control unit 21 controls the opening and closing of the oil inlet switch valve 22 and the oil return switch valve 23 according to an on signal of the control switch 5, so that the exhaust apparatus is switched from the third operation mode to the first operation mode, or the exhaust control unit controls the opening and closing of the oil inlet switch valve 22 and the oil return switch valve 22 according to a stop signal of the control switch 5, so that the exhaust apparatus is switched to the third operation mode. Here, the control switch 5 may be used as a master control switch, that is, an on signal of the control switch 5 enables the whole exhaust apparatus to be in an operating state, and the exhaust control unit 21 can control the oil inlet switch valve 22 to be opened and the oil return switch valve 23 to be closed, so that the exhaust apparatus enters the first operating mode to exhaust, and a stop signal of the control switch 5 enables the exhaust control unit 21 to control both the oil inlet switch valve 22 and the oil return switch valve 23 to be closed, so that the exhaust valve enters the third operating mode, at this time, the whole exhaust apparatus stops operating, that is, returns to an initial state. Thus, the control switch 5 can function to start or stop the operation of the exhaust device, thereby facilitating control of whether or not the entire exhaust device is operated, and improving convenience in operation of the entire exhaust device. According to some embodiments, the control switch 5 may be disposed on an instrument panel to facilitate occupant operation, which is not limited by the present disclosure.
In some embodiments of the present disclosure, referring to fig. 1 to 4, the exhaust control unit 21 is configured to receive a tread signal indicating a brake pedal state, and the exhaust control unit 21 controls opening and closing of the oil inlet switch valve 22 and the oil return switch valve 23 according to the opening signal and the tread signal indicating that the brake pedal is in a braking state, so that the exhaust apparatus is switched from the third operation mode to the first operation mode; the exhaust control unit 21 controls the opening and closing of the oil inlet switch valve 22 and the oil return switch valve 23 according to the opening signal and a tread signal indicating that a brake pedal is in a non-braking state, so that the exhaust device is switched to the third working mode. Here, when the exhaust control unit 21 receives the start signal and the tread signal of the brake pedal in the braking state, the oil inlet switch valve 22 is opened, the oil return switch valve 23 is closed, at this time, the hydraulic oil in the hydraulic system can enter the oil inlet channel 12, and the air outlet can exhaust air; when the exhaust control unit 21 receives the start signal and the stepping signal that the brake pedal is in the non-braking state, the oil inlet switch valve 22 is closed, the oil return switch valve 23 is closed, at this time, the hydraulic oil in the hydraulic system stops entering the oil inlet channel 12, and the air outlet stops exhausting.
The specific working principle of the exhaust apparatus will be described in detail with reference to the specific embodiment of the present disclosure, referring to fig. 1, the oil inlet switch valve 22 and the oil return switch valve 23 of the exhaust apparatus are both closed, at this time, the exhaust apparatus is in the default third working mode, when the driver feels that the braking performance is insufficient, the control switch 5 is turned on, and a stepping signal that the brake pedal is in the braking state is sent to the exhaust control unit by stepping on the brake pedal, at this time, referring to fig. 2, the exhaust control unit 21 controls the oil inlet switch valve 22 to be opened, hydraulic oil can gradually enter the oil inlet channel 12 and push the floating block 31 to move upwards until the floating block contacts the limit switch 24 (referring to fig. 3), at this time, referring to fig. 4, the exhaust control unit 21 controls the oil inlet switch valve 22 to be closed and the oil return switch valve 23 to be opened, hydraulic oil in the main body 1 flows out through the oil return channel 13, the elastic reset piece 32 pushes the floating block 31 to return to the initial position, after a preset time, the exhaust control unit 21 receives a stepping signal that the brake pedal is in a non-braking state, the exhaust control unit 21 controls the oil return switch valve 23 to close, at the moment, the exhaust device returns to the third working mode, when the driver steps on the brake pedal again, the exhaust device enters the next cycle, when the control switch 5 is closed, the exhaust control unit 21 controls the exhaust device to enter the third working mode, and at the moment, the exhaust device stops working.
According to a second aspect of the present disclosure, there is provided a hydraulic brake system including a brake caliper, the hydraulic brake system including the exhaust apparatus of the hydraulic brake system as described above, an oil inlet end portion of the main body 1 being detachably mounted in an exhaust port of the brake caliper. The hydraulic braking system can solve the technical problem that the self braking efficiency is insufficient, and can quickly and effectively ensure the self braking efficiency.
According to a third aspect of the present disclosure, there is provided a vehicle including the hydraulic brake system as described above to improve safety performance of the vehicle.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (8)
1. An exhaust apparatus for a hydraulic brake system, the exhaust apparatus comprising:
the exhaust gas purifier comprises a main body (1), wherein the main body (1) is provided with an oil inlet end part, an oil return end part and an exhaust end part, an exhaust channel (11) positioned in the exhaust end part, an oil inlet channel (12) extending from the end surface of the oil inlet end part to be communicated with the exhaust channel (11) and an oil return channel (13) extending from the end surface of the oil return end part to be communicated with the oil inlet channel (12) are formed in the main body (1), the exhaust channel (11) is provided with an inlet and an outlet, and the inlet is connected with the oil inlet channel (12) and positioned below the outlet;
an oil-in switching valve (22), the oil-in switching valve (22) being provided in an oil-in passage (12) of the oil-in end portion;
an oil return switching valve (23), the oil return switching valve (23) being provided in an oil return passage (13) of the oil return end portion; and
the exhaust control unit (21) is electrically connected with the oil inlet switch valve (22) and the oil return switch valve (23) so as to control the opening or closing of the oil inlet switch valve (22) and the oil return switch valve (23) respectively;
the exhaust device is provided with a first working mode, a second working mode and a third working mode, wherein in the first working mode, the oil inlet switch valve (22) is opened, and the oil return switch valve (23) is closed, in the second working mode, the oil inlet switch valve (22) is closed, and the oil return switch valve (23) is opened, and in the third working mode, the oil inlet switch valve (22) and the oil return switch valve (23) are both closed;
the exhaust device comprises an exhaust component which is arranged in the exhaust channel (11), the exhaust component comprises a floating block (31), and the floating block (31) can move up and down in the exhaust channel (11) and has an exhaust gap with the channel wall of the exhaust channel (11);
exhaust apparatus is including setting up limit switch (24) in exhaust passage (11), limit switch (24) with exhaust control unit (21) electricity is connected, works as floating block (31) rise to when limit switch (24) the position at place, limit switch (24) send the signal that targets in place, exhaust control unit (21) basis signal control that targets in place the switching of oil feed ooff valve (22) with oil return ooff valve (23), so that exhaust apparatus switches to the second mode of operation.
2. An exhaust device of a hydraulic brake system according to claim 1, characterized in that the exhaust control unit (21) controls the oil return switching valve (23) to close with a delay of a preset time after the exhaust device is switched to the second operation mode.
3. An exhaust device of a hydraulic brake system according to claim 1, wherein the exhaust assembly comprises an elastic return member (32) connected to the floating block (31), the elastic return member (32) providing a downward elastic force to the floating block (31).
4. An exhaust device of a hydraulic brake system according to claim 1, characterized in that the exhaust assembly comprises a one-way valve (4) arranged at an outlet, the one-way valve (4) allowing gas in the exhaust channel (11) to pass through the outlet.
5. The exhaust apparatus of the hydraulic brake system according to any one of claims 1 to 4, characterized in that the exhaust apparatus includes a control switch (5) electrically connected to the exhaust control unit (21), and the exhaust control unit (21) controls opening and closing of the oil feed switching valve (22) and the oil return switching valve (23) according to an on signal of the control switch (5) so that the exhaust apparatus switches from the third operation mode to the first operation mode, or the exhaust control unit (21) controls opening and closing of the oil feed switching valve (22) and the oil return switching valve (23) according to a stop signal of the control switch (5) so that the exhaust apparatus switches to the third operation mode.
6. The exhaust apparatus of the hydraulic brake system according to claim 5, wherein the exhaust control unit (21) is configured to receive a depressing signal indicating a brake pedal state, and the exhaust control unit (21) controls opening and closing of the oil inlet switch valve (22) and the oil return switch valve (23) according to the opening signal and the depressing signal indicating that the brake pedal is in the braking state, so that the exhaust apparatus is switched from the third operation mode to the first operation mode; and the exhaust control unit (21) controls the opening and closing of the oil inlet switch valve (22) and the oil return switch valve (23) according to the opening signal and a treading signal indicating that a brake pedal is in a non-braking state, so that the exhaust device is switched to the third working mode.
7. A hydraulic brake system comprising a brake caliper, characterized in that it comprises the exhaust device of the hydraulic brake system according to any one of claims 1 to 6, the oil inlet end portion of the main body (1) being removably mounted in an exhaust port of the brake caliper.
8. A vehicle characterized by comprising the hydraulic brake system of claim 7.
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| CN202011066106.3A CN112248993B (en) | 2020-09-30 | 2020-09-30 | Exhaust device of hydraulic braking system, hydraulic braking system and vehicle |
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| CN202011066106.3A CN112248993B (en) | 2020-09-30 | 2020-09-30 | Exhaust device of hydraulic braking system, hydraulic braking system and vehicle |
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| CN112248993A CN112248993A (en) | 2021-01-22 |
| CN112248993B true CN112248993B (en) | 2021-12-10 |
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