CN212654334U - Device for realizing pressure maintaining parking function by utilizing hydraulic braking system and ball valve - Google Patents
Device for realizing pressure maintaining parking function by utilizing hydraulic braking system and ball valve Download PDFInfo
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- CN212654334U CN212654334U CN202020412104.4U CN202020412104U CN212654334U CN 212654334 U CN212654334 U CN 212654334U CN 202020412104 U CN202020412104 U CN 202020412104U CN 212654334 U CN212654334 U CN 212654334U
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Abstract
The utility model relates to an utilize hydraulic braking system and ball valve to realize device of pressurize parking function, the device that utilizes hydraulic braking system and ball valve to realize pressurize parking function include hydraulic braking system, check valve, pressurize ball valve, motor or electromagnetic actuator, pressurize parking the control unit, hydraulic pressure force sensor, wheel cylinder, has remain the braking function of former hydraulic braking system, still has pressurize parking function. Compared with the prior art, the utility model discloses increase a check valve, a pressurize ball valve, a motor or electromagnetic actuator and a hydraulic pressure force sensor just can realize pressurize parking function on former hydraulic braking system, saved extra parking braking system, reduce cost saves space, simple to operate.
Description
Technical Field
The utility model relates to an automobile brake system technical field.
Background
The hydraulic brake system comprises a brake system with a vacuum booster and a main cylinder assembly and an electronic hydraulic brake system, wherein the brake system with the vacuum booster and the main cylinder assembly adopts the working principle that when a driver steps on a pedal, the force of a push rod is amplified under the action of vacuum boosting, and the push rod acts on the main cylinder to push a piston of the main cylinder to build pressure. When a driver steps on a pedal, the electronic hydraulic brake system collects signals from a pedal opening sensor or a pedal displacement sensor, and calculates the assistance torque required to be output by a brake motor or an electromagnetic actuator through an internal algorithm of an electronic control unit. The transmission mechanism converts the rotary motion output by the motor or the electromagnetic actuator into linear motion to push the main cylinder piston to build pressure.
The existing hydraulic brake system can only realize the function of service braking, and when a vehicle stops and needs to be parked, an additional brake system is required to realize the parking function. The existing parking braking system has the disadvantages of high cost, more parts and large volume. In order to improve the problems, the utility model provides an utilize hydraulic braking system to realize device of pressurize parking function.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an utilize hydraulic braking system and ball valve to realize device of pressurize parking function, this kind of device has remain the braking function of former hydraulic braking system, has still increased the function of pressurize parking. Compared with the prior art and scheme, the utility model discloses current parking braking system can be replaced to the device, and reduce cost saves space, simple to operate, reliable and stable.
The purpose of the utility model can be realized through the following technical scheme:
a device for realizing a pressure maintaining parking function by utilizing a hydraulic braking system and a ball valve comprises the hydraulic braking system, a one-way valve, the pressure maintaining ball valve, a motor or an electromagnetic actuator, a pressure maintaining parking control unit, a hydraulic pressure sensor, a first wheel cylinder and a second wheel cylinder. The hydraulic braking system provides braking hydraulic pressure, the one-way valve is arranged on an oil pipe between an oil outlet of the main cylinder and an oil outlet of the oil can, when the pressure maintaining ball valve is closed, and in the return process of the main cylinder, the one-way valve is actively opened under the negative pressure effect to supplement braking liquid for the return of the main cylinder. When the brake pipeline has pressure, the pressure maintaining ball valve closes the loop to enable the first wheel cylinder and the second wheel cylinder connected with the oil pipe to maintain the braking force, and the pressure maintaining and parking function is achieved. The pressure maintaining parking control unit controls the motor or the electromagnetic actuator to rotate, the motor or the electromagnetic actuator rotates to drive the pressure maintaining ball valve to be opened or closed, and the first hydraulic pressure sensor is used for collecting hydraulic pressure of the first wheel cylinder and the second wheel cylinder. And a check valve, a pressure maintaining ball valve and a motor or an electromagnetic actuator can be arranged on the two oil pipes to control the pressure maintaining ball valves on the two brake circuits, so that the four-wheel pressure maintaining parking function is realized, and a better pressure maintaining parking effect is achieved.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the device with the pressure maintaining parking function saves an additional parking power mechanism by means of the power mechanism of the hydraulic braking system, and is simple in structure, low in cost, high in integration level, convenient to adapt to various hydraulic braking system vehicle types and high in universality.
(2) The device with the pressure maintaining and parking functions can be used as an independent small module, and is small in size, light in weight, flexible in arrangement and convenient to install.
(3) The device with the pressure maintaining and parking functions can be integrated with a hydraulic braking system, so that the cost is reduced, the product integration level is improved, and the stability of electronic equipment of the braking system is improved.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
1. First embodiment of device for realizing pressure-maintaining parking function by utilizing hydraulic braking system and ball valve
As shown in fig. 1, in the service braking process, a hydraulic braking system 1 provides braking hydraulic pressure, the hydraulic pressure flows out through oil outlets b and c of a main cylinder 1-2, at the moment, a one-way valve 2 is in a stop state, a pressure maintaining ball valve 3 is in an open state, the braking hydraulic pressure flows to a first wheel cylinder 8 and a second wheel cylinder 10 through oil pipes, the braking hydraulic pressure flowing out from the oil outlet b of the main cylinder 1-2 directly flows to a third wheel cylinder 7 and a fourth wheel cylinder 9, a wheel cylinder piston is pushed, and a brake caliper is clamped, so that the service braking function is realized. When the vehicle is in a stopped state and the parking function is started, the hydraulic braking system generates brake fluid pressure, the pressure maintaining ball valve 3 is closed at the moment, the first wheel cylinder 8 and the second wheel cylinder 10 maintain the hydraulic pressure, then the hydraulic braking system releases the brake fluid pressure, the one-way valve 2 is actively opened, the oil pot 1-3 is communicated with the main cylinder 1-2 to form a loop, and the oil pot 1-3 returns the main cylinder 1-2 to supplement the brake fluid. Because the pressure maintaining ball valve 3 is in a closed state, the hydraulic pressure in the first wheel cylinder 8 and the second wheel cylinder 10 can be continuously maintained, and the pressure maintaining parking function is realized. The pressure-maintaining parking control unit 5 continuously works, signals of the first hydraulic pressure sensor 6 are read in real time, so that the hydraulic pressures of the first wheel cylinder 8 and the second wheel cylinder 10 are monitored in real time, when the hydraulic pressure is low, the hydraulic brake system 1 is actively requested to be pressurized, the pressure boosting process is that the hydraulic brake system 1 is pressurized, then the pressure-maintaining ball valve 3 is opened, when the brake hydraulic pressure reaches a preset value, the pressure-maintaining ball valve 3 is closed, the first wheel cylinder 8 and the second wheel cylinder 10 are enabled to maintain the hydraulic pressure, then the hydraulic brake system releases the brake hydraulic pressure, the one-way valve 2 is actively opened, the oil pot 1-3 is communicated with the master cylinder 1-2 to form a loop, and the oil pot 1-3 is used for returning and supplementing the brake fluid. When the vehicle is changed from a parking state to a driving state, the main cylinder 1-2 generates certain hydraulic pressure, then the pressure maintaining ball valve 3 is opened, at the moment, the pressure of the third wheel cylinder 7, the fourth wheel cylinder 9, the first wheel cylinder 8 and the second wheel cylinder 10 is completely controlled by the hydraulic pressure of the main cylinder 1-2, and after the main cylinder 1-2 returns, the hydraulic pressure of the third wheel cylinder 7, the fourth wheel cylinder 9, the first wheel cylinder 8 and the second wheel cylinder 10 is released, so that parking braking is released.
2. Second embodiment of device for realizing pressure-maintaining parking function by utilizing hydraulic braking system and ball valve
As shown in fig. 2, in the service braking process, the hydraulic braking system 1 provides braking hydraulic pressure, the hydraulic pressure flows out through oil outlets b and c of the main cylinder 1-2, at this time, the check valves 2 and 11 are in a cut-off state, the pressure maintaining ball valve 3 is in an open state, and the braking hydraulic pressure flows to the third wheel cylinder 7, the fourth wheel cylinder 9, the first wheel cylinder 8 and the second wheel cylinder 10 through oil pipes to push wheel cylinder pistons and clamp brake calipers, so that the service braking function is realized. When the vehicle is in a stopped state and the parking function is started, the hydraulic braking system generates brake fluid pressure, the pressure maintaining ball valve 3 is closed at the moment, the third wheel cylinder 7, the fourth wheel cylinder 9, the first wheel cylinder 8 and the second wheel cylinder 10 are enabled to maintain the hydraulic pressure, then the hydraulic braking system releases the brake fluid pressure, the one-way valves 2 and 11 are actively opened, the oil pots 1-3 are communicated with the main cylinder 1-2 to form a loop, and the oil pots 1-3 are used for returning and supplementing brake fluid for the main cylinder 1-2. Because the pressure maintaining ball valve 3 is in a closed state, the hydraulic pressure in the third wheel cylinder 7, the fourth wheel cylinder 9, the first wheel cylinder 8 and the second wheel cylinder 10 can be continuously maintained, and the pressure maintaining and parking function is realized. The pressure maintaining parking control unit 5 works continuously, and by reading signals of the first hydraulic pressure sensor 6 and the second hydraulic pressure sensor 12 in real time, thereby monitoring the hydraulic pressure of the third wheel cylinder 7, the fourth wheel cylinder 9, the first wheel cylinder 8 and the second wheel cylinder 10 in real time, when the hydraulic pressure is lower, the hydraulic braking system 1 is actively requested to be pressurized, the hydraulic braking system 1 is pressurized in the pressurizing process, then the pressure maintaining ball valve 3 is opened, when the brake fluid pressure reaches the preset value, the pressure maintaining ball valve 3 is closed, so that the third wheel cylinder 7, the fourth wheel cylinder 9, the first wheel cylinder 8 and the second wheel cylinder 10 maintain the fluid pressure, then the hydraulic braking system releases the pressure of the brake fluid, the one-way valves 2 and 11 are actively opened, the oil pot 1-3 is communicated with the master cylinder 1-2 to form a loop, and the oil pot 1-3 is used for returning and supplementing the brake fluid for the master cylinder 1-2, so that the parking reliability and safety are ensured. When the vehicle is changed from a parking state to a driving state, the main cylinder 1-2 generates certain hydraulic pressure, then the pressure maintaining ball valve 3 is opened, at the moment, the pressure of the third wheel cylinder 7, the fourth wheel cylinder 9, the first wheel cylinder 8 and the second wheel cylinder 10 is completely controlled by the hydraulic pressure of the main cylinder 1-2, and after the main cylinder 1-2 returns, the hydraulic pressure of the third wheel cylinder 7, the fourth wheel cylinder 9, the first wheel cylinder 8 and the second wheel cylinder 10 is released, so that parking braking is released.
Claims (6)
1. The utility model provides an utilize hydraulic braking system and ball valve to realize device of pressurize parking function which characterized in that includes:
the hydraulic brake system (1) provides brake hydraulic pressure, and the hydraulic brake system (1) consists of an actuating mechanism (1-1), a main cylinder (1-2) and an oil can (1-3);
the check valve (2) is arranged on an oil pipe between an oil outlet (c) of the main cylinder (1-2) and an oil outlet (a) of the oil can (1-3);
the pressure maintaining ball valve (3) is arranged on an oil pipe between an oil outlet (c) of the main cylinder (1-2) and the first wheel cylinder (8) and the second wheel cylinder (10);
the motor or the electromagnetic actuator (4) is mechanically connected with the pressure maintaining ball valve (3), and the motor or the electromagnetic actuator (4) can control the opening and closing of the pressure maintaining ball valve (3);
the first hydraulic pressure sensor (6) is arranged on an oil pipe between the pressure maintaining ball valve (3) and the first wheel cylinder (8) and the second wheel cylinder (10);
and the pressure maintaining parking control unit (5) is connected with the first hydraulic pressure sensor (6) and the motor or the electromagnetic actuator (4) through a wire harness, collects hydraulic pressure signals of the first hydraulic pressure sensor (6), and controls the motor or the electromagnetic actuator (4) to work.
2. The device for realizing the pressure-maintaining parking function by using the hydraulic brake system and the ball valve as claimed in claim 1, wherein: a one-way valve can be arranged between the oil outlet (b) of the main cylinder (1-2) and the oil outlet (a) of the oil can (1-3), and a pressure maintaining ball valve is arranged between the oil outlet (b) of the main cylinder (1-2) and the third wheel cylinder (7) and the fourth wheel cylinder (9).
3. The apparatus for performing the pressure maintaining parking function using the hydraulic brake system and the ball valve according to claim 1 or 2, wherein: a first hydraulic pressure sensor (6) can be arranged on oil pipes of the pressure maintaining ball valve (3), the first wheel cylinder (8) and the second wheel cylinder (10), and the first hydraulic pressure sensor (6) is connected with the pressure maintaining parking control unit (5) through a wiring harness.
4. The device for realizing the pressure-maintaining parking function by using the hydraulic brake system and the ball valve as claimed in claim 2, wherein: a first hydraulic pressure sensor (6) can be arranged on an oil pipe between the pressure maintaining ball valve (3) and the first wheel cylinder (8) and the second wheel cylinder (10), another hydraulic pressure sensor is arranged on an oil pipe between a pressure maintaining valve between the main cylinder (1-2) oil outlet (b) and the third wheel cylinder (7) and between a pressure maintaining valve between the fourth wheel cylinder (9) and the third wheel cylinder (7) and between the pressure maintaining valve and the fourth wheel cylinder (9), and the two hydraulic pressure sensors are connected with the pressure maintaining parking control unit (5) through a wiring harness.
5. The apparatus for performing a pressure-maintaining parking function using a hydraulic brake system and a ball valve as set forth in claim 1, wherein: the pressure maintaining parking control unit (5) and the hydraulic braking system control unit are integrated together.
6. The apparatus for performing a pressure-maintaining parking function using a hydraulic brake system and a ball valve as set forth in claim 1, wherein: the motor or the electromagnetic actuator (4) and the pressure maintaining ball valve (3) are integrated into a component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020412104.4U CN212654334U (en) | 2020-03-27 | 2020-03-27 | Device for realizing pressure maintaining parking function by utilizing hydraulic braking system and ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020412104.4U CN212654334U (en) | 2020-03-27 | 2020-03-27 | Device for realizing pressure maintaining parking function by utilizing hydraulic braking system and ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212654334U true CN212654334U (en) | 2021-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020412104.4U Active CN212654334U (en) | 2020-03-27 | 2020-03-27 | Device for realizing pressure maintaining parking function by utilizing hydraulic braking system and ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212654334U (en) |
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2020
- 2020-03-27 CN CN202020412104.4U patent/CN212654334U/en active Active
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