Intelligent collection system for particles discharged by automobile brake

Abstract

The utility model discloses an intelligent collection system for particles discharged by automobile brake, which belongs to the technical field of brake particle collection, and comprises a particle collection component, an isolating valve group and a negative pressure source component, the particle collection component comprises a first suction port, a second suction port, a third suction port and a fourth suction port, the isolating valve group comprises a first isolating valve and a second isolating valve, the first isolating valve is connected with the first suction port and the second suction port through a first loop pipe, and the second isolating valve is connected with the third suction port and the fourth suction port through a second loop pipe. When a single loop of a brake system fails, brake discharged particles can be correspondingly collected; cyclone separators are arranged on the two loop pipes, so that the use cost is low, the collection efficiency is high, and the environment is protected; the negative pressure source assembly can be connected into an engine intake manifold or a vacuum pump, and is suitable for being used on a fuel vehicle and a new energy vehicle.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of brake braking particle collection, specifically relates to an automobile brake emission particle intelligent collection system. BACKGROUND

[0002] PM10 and PM2.5 generated in the brake process are important components of non-tail gas emission particles, and 30% to 40% of the particulate matter are metal elements (barium, copper, antimony, iron, etc.), which can easily cause lung inflammation and harm human health. The brake pipeline of a passenger car usually adopts X-shaped cross double circuit arrangement: the first circuit is connected with front left wheel and rear right wheel brake calipers 92, and the second circuit is connected with front right wheel and rear left wheel brake calipers 94. The X-shaped cross double circuit has the characteristics that when one circuit fails, 50% of the braking efficiency is still maintained, and the distribution coefficient and synchronous adhesion coefficient of the braking force do not change, which can ensure the adaptability to the vehicle load during braking. The existing brake braking particle collection device cannot meet the collection of brake emission particles when the brake single circuit fails. SUMMARY

[0003] The utility model solves the technical problem to provide an automobile brake emission particle intelligent collection system to intelligently realize brake emission particle collection and effectively control automobile brake particle emission.

[0004] Technical scheme: in order to solve the above technical problem, the utility model adopts the following technical scheme:

[0005] An automobile brake emission particle intelligent collection system, comprising a particle collection assembly connected with a brake caliper, an isolation valve group connected with the particle collection assembly, and a negative pressure source assembly connected with the isolation valve group, the particle collection assembly comprising a first suction port, a second suction port, a third suction port and a fourth suction port, the isolation valve group comprising a first isolation valve and a second isolation valve, the first isolation valve being connected with the first suction port and the second suction port through a first circuit pipe, and the second isolation valve being connected with the third suction port and the fourth suction port through a second circuit pipe.

[0006] Further, the first suction port corresponds to the front left wheel brake caliper, the second suction port corresponds to the rear right wheel brake caliper, the third suction port corresponds to the front right wheel brake caliper, and the fourth suction port corresponds to the rear left wheel brake caliper.

[0007] Further, the first circuit pipe is provided with a first cyclone separator, and the second circuit pipe is provided with a second cyclone separator.

[0008] Further, the negative pressure source assembly is a vacuum booster, the vacuum booster is provided with a one-way valve, and the negative pressure source assembly is connected with an engine intake manifold.

[0009] Further, the negative pressure source assembly is a vacuum pump.

[0010] Beneficial effects: compared with the prior art, the utility model has the following advantages:

[0011] 1、Isolation valve group includes first isolation valve and second isolation valve, first isolation valve is connected with first suction port and second suction port through first loop pipe, second isolation valve is connected with third suction port and fourth suction port through second loop pipe, and when brake system single loop fails, corresponding brake emission particles can be collected too;

[0012] 2、Two loop pipes are provided with cyclone separators, and the cyclone separators are low in use cost, high in collection efficiency and environmental protection;

[0013] 3、The negative pressure source assembly can be connected with engine intake manifold or vacuum pump, and is suitable for use on fuel vehicles and new energy vehicles. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the system structure schematic drawing of the utility model embodiment 1;

[0015] Figure 2 It is the system structure schematic drawing of the utility model embodiment 2. DETAILED DESCRIPTION

[0016] The utility model will be further illustrated in combination with specific embodiments, and the embodiments are implemented under the premise of the technical scheme of the utility model, and it should be understood that these embodiments are only used to illustrate the utility model and not used to limit the scope of the utility model.

[0017] Embodiment 1

[0018] As Figure 1As shown, an intelligent collection system for automobile brake emission particles includes a particle collection assembly, an isolation valve group, and a negative pressure source assembly 3 for collecting automobile brake emission particles. The automobile is a four-wheel automobile, and the brake calipers include a front left wheel brake caliper 91, a front right wheel brake caliper 93, a rear right wheel brake caliper 92, and a rear left wheel brake caliper 94. The particle collection assembly is used to connect with the brake calipers. The particle collection assembly includes a first suction port 11, a second suction port 12, a third suction port 13, and a fourth suction port 14. The particle collection assembly uses existing friction plate particle collection devices, such as the patent with the authorization announcement number CN 112996700B: System for suction of brake particles with preemptive control, wherein the device for capturing escaped particles provides a suction port in each friction plate, wherein the particles are captured in a groove formed in the friction material. The suction port can be formed by one or more grooves, which in turn are connected to a through hole in the base plate of the friction lining and communicate downstream with the channel. In this embodiment, the particle collection assembly also uses the same suction port. The first suction port 11 is connected to the front left wheel brake caliper 91, the second suction port 12 is connected to the rear right wheel brake caliper 92, the third suction port 13 is connected to the front right wheel brake caliper 93, and the fourth suction port 14 is connected to the rear left wheel brake caliper 94.

[0019] As Figure 1 shown, the isolation valve group includes a first isolation valve 21 and a second isolation valve 22. The first isolation valve 21 is connected to the first suction port 11 and the second suction port 12 through a first circuit pipe 41. The second isolation valve 22 is connected to the third suction port 13 and the fourth suction port 14 through a second circuit pipe 42. The first isolation valve 21 and the second isolation valve 22 are both two-position two-way valves. The isolation valve group is connected to the negative pressure source assembly 3. The first isolation valve 21 and the second isolation valve 22 are connected to the negative pressure source assembly 3 in parallel. The negative pressure source assembly 3 is used to generate negative pressure to generate negative pressure in the first circuit pipe 41 and the second circuit pipe 42. The four suction ports can suck the particles generated during brake operation.

[0020] As Figure 1 shown, the first circuit pipe 41 is provided with a first cyclone separator 51, and the second circuit pipe 42 is provided with a second cyclone separator 52. The first cyclone separator 51 and the second cyclone separator 52 both use existing cyclone separators to remove particles entrained in the gas.

[0021] As Figure 1 shown, the negative pressure source assembly 3 of this embodiment is a vacuum booster (the original vacuum booster of the brake system). The vacuum booster is built-in with a one-way valve 31. The suction pipe of the vacuum booster is connected to the engine intake manifold of the automobile. When the engine is working, the suction effect formed by the downward movement of the piston during the intake stroke makes the intake manifold pressure lower than the atmospheric pressure, forming a vacuum environment in the vacuum booster chamber to generate suction.

[0022] Three working modes of this embodiment:

[0023] Working mode one, before braking. The car starts, the engine works, the intake manifold is connected to the vacuum booster to form a vacuum environment to generate suction force, preparing for the suction of brake discharge particles. The first isolation valve 21 and the second isolation valve 22 are both closed under power, and in this mode, the vacuum environment end and the wheel end caliper end are isolated, and the four brake calipers cannot suck brake discharge particles.

[0024] Working mode two, vehicle braking, friction between the friction block and the brake disc forms brake discharge particles. The car engine is in working condition, the vacuum environment is ready, and the first isolation valve 21 and the second isolation valve 22 are both open under power. The vacuum environment end and the wheel end caliper are connected, and the four brake caliper brake discharge particles are sucked into the first cyclone separator 51 and the second cyclone separator 52 through the four suction ports, completing the separation and collection of brake discharge particles.

[0025] Working mode three, vehicle braking with first loop working and second loop failure, corresponding to the single loop failure mode required by the regulation GB21670. The car is in working condition, the vacuum environment is ready, the first isolation valve 21 in the first loop is open under power, the vacuum environment end and the wheel end caliper are connected, and the brake discharge particles of the front left wheel brake caliper 91 and the rear right wheel brake caliper 92 are sucked into the first cyclone separator 51 through the first suction port 11 and the second suction port 12, completing the separation and collection of brake discharge particles. The second isolation valve 22 in the second loop is closed under power, and the vacuum environment end and the wheel end caliper are isolated, and the brake discharge particles cannot be sucked. When the first loop fails and the second loop works, the state is the opposite of the above state, which is not described again.

[0026] Embodiment 2

[0027] As shown in Figure 2 , the difference from embodiment 1 is that in this embodiment, the negative pressure source assembly 3 is a vacuum pump, the isolation valve group is connected with the vacuum pump, the vacuum pump includes a high-speed motor 32, and a negative pressure is formed in the first loop pipe 41 and the second loop pipe 42 by driving the high-speed motor 32.

[0028] Three working modes of this embodiment:

[0029] Working mode one, before braking. The car is in working condition, the first isolation valve 21 and the second isolation valve 22 are closed under power, and the motor of the vacuum pump does not work. In this mode, the vacuum environment end and the four brake calipers are isolated.

[0030] The working mode two is that the automobile is braked, and brake discharge particles are formed by friction between the friction block and the brake disc. The first isolation valve 21 and the second isolation valve 22 are powered on, and the vacuum pump works to form a vacuum environment to generate suction. The vacuum environment end is communicated with the wheel end caliper end, the four brake calipers of the wheel end discharge particles are sucked to the first cyclone separator 51 and the second cyclone separator 52 through four suction ports, and the brake discharge particle separation and collection are completed.

[0031] The working mode three is that the automobile is braked, the first circuit works, and the second circuit fails, which corresponds to the single-circuit failure mode required by the regulation GB21670. The first isolation valve 21 in the first circuit is powered on, the vacuum environment end is communicated with the wheel end caliper, the vacuum pump works to form a vacuum environment to generate suction, the brake discharge particles of the front left wheel brake caliper 91 and the rear right wheel brake caliper 92 of the wheel end are sucked to the first cyclone separator 51 through the first suction port 11 and the second suction port 12 to complete the brake discharge particle separation and collection. The second isolation valve 22 in the second circuit is powered off, the vacuum environment end is isolated from the front right wheel brake caliper 93 and the rear left wheel brake caliper 94 of the wheel end caliper, and the brake discharge particles cannot be sucked. The working state of the first circuit failure and the second circuit working is opposite to the above state, and details are not described herein.

[0032] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. An automobile brake discharge particle intelligent collection system, characterized in that, The application relates to a brake dust collecting device for a vehicle, which comprises a particle collecting assembly connected with brake calipers, an isolation valve group connected with the particle collecting assembly and a negative pressure source assembly (3) connected with the isolation valve group, wherein the particle collecting assembly comprises a first suction port (11), a second suction port (12), a third suction port (13) and a fourth suction port (14), the isolation valve group comprises a first isolation valve (21) and a second isolation valve (22), the first isolation valve (21) is connected with the first suction port (11) and the second suction port (12) through a first return circuit pipe (41), and the second isolation valve (22) is connected with the third suction port (13) and the fourth suction port (14) through a second return circuit pipe (42).

2. The automobile brake discharge particle intelligent collection system according to claim 1, characterized in that, The first suction port (11) corresponds to a front left wheel brake caliper, the second suction port (12) corresponds to a rear right wheel brake caliper, the third suction port (13) corresponds to a front right wheel brake caliper, and the fourth suction port (14) corresponds to a rear left wheel brake caliper.

3. The automobile brake discharge particle intelligent collection system according to claim 1, characterized in that, A first cyclone separator (51) is arranged on the first return circuit pipe (41), and a second cyclone separator (52) is arranged on the second return circuit pipe (42).

4. The automobile brake discharge particle intelligent collection system according to claim 1, characterized in that, The negative pressure source assembly (3) is a vacuum booster, the vacuum booster is internally provided with a one-way valve (31), and the negative pressure source assembly (3) is connected with an engine intake manifold.

5. The automobile brake discharge particle intelligent collection system according to claim 1, characterized in that, The negative pressure source assembly (3) is a vacuum pump.

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