CN109501781B - Method for eliminating hydraulic disc brake start retardation - Google Patents
Method for eliminating hydraulic disc brake start retardation Download PDFInfo
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- CN109501781B CN109501781B CN201811297357.5A CN201811297357A CN109501781B CN 109501781 B CN109501781 B CN 109501781B CN 201811297357 A CN201811297357 A CN 201811297357A CN 109501781 B CN109501781 B CN 109501781B
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- brake
- hydraulic disc
- disc brake
- rotor
- rotating shaft
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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
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a method for eliminating the start retardation of a hydraulic disc brake, which comprises the following steps: the hydraulic disc brake comprises a hub, a rotating shaft and a rotor, wherein the hub is arranged on the periphery of the rotating shaft, a hub bearing is arranged between the hub and the rotating shaft, the rotor is arranged on the periphery of the rotating shaft, the rotor is fixedly connected with one end of the hub through a screw, the hydraulic disc brake is arranged on the rotating shaft, the hydraulic disc brake comprises two brake pads, and one end of the rotating shaft is provided with a steering mechanism; for one end with the steering mechanism, the method comprises: step A1: the vehicle stops; step A2: the steering mechanism turns the wheels to at least one direction by clockwise rotation or anticlockwise rotation; step A3: the steering mechanism rotates the wheels back to their original positions. The invention can better eliminate the starting resistance of the hydraulic disc brake through the software function.
Description
Technical Field
The invention relates to the technical field of vehicle hydraulic disc brakes, in particular to a method for eliminating the starting retardation of a hydraulic disc brake.
Background
The non-retraction of brake pads after brake actuation is a well-known feature of hydraulic disc brakes. It can produce significant drag torque the next time the vehicle is started, particularly when the vehicle is no longer moving for an extended period of time, such as an entire night. At night, the adhesion between the rotor and the brake pads increases and the condensation of moisture from the air causes corrosion, which also increases the drag torque at the start of the vehicle, which has a great negative effect on fuel economy, range of electric vehicles and increases pollution due to additional wear of the brake pads.
The use of brake pad clips to secure the brake pads to the caliper piston means that special brake pads can be used and the replacement of the brake pads requires special tools and changes to the vehicle anti-lock brake system, so it adds complexity to the system and adds more components which are not preferred for safety critical systems such as brake systems.
There is also the addition of a retraction spring in the system which also increases the complexity of the system making it more difficult to replace the brake pads and there is a risk of improper installation of the spring after replacement of the brake pads, the spring always pushing the piston and the brake pad backwards, the spring force balancing the mechanical resistance of these components regardless of the wear of the brake pad, so that it creates too much clearance for the used brake pad.
Not only is a special spring added to the system, which may have improper assembly during brake pad replacement, and brake dust may accumulate under the attachment surface of the spring increasing its preload.
On the one hand, improves the state of the art retraction systems based on sealing, but it retracts onto the piston and brings the brake pads into contact with the rotor, so that the adhesion and corrosion problems cannot be solved.
Generally, the above-described method does not eliminate the activation resistance of the hydraulic disc brake well.
Disclosure of Invention
Aiming at the problem that the existing method for eliminating the starting retardation of the hydraulic disc brake cannot well eliminate the starting resistance, the method for eliminating the starting retardation of the hydraulic disc brake is provided, and the starting resistance can be well eliminated.
The specific technical scheme is as follows:
a method of eliminating hydraulic disc brake actuation retardation comprising: the hydraulic disc brake comprises a hub, a rotating shaft and a rotor, wherein the hub is arranged on the periphery of the rotating shaft, a hub bearing is arranged between the hub and the rotating shaft, the rotor is arranged on the periphery of the rotating shaft, the rotor is fixedly connected with one end of the hub through a screw, the hydraulic disc brake is arranged on the rotating shaft, the hydraulic disc brake comprises two brake pads, and one end of the rotating shaft is provided with a steering mechanism;
the method comprises the following steps:
step A1: the vehicle stops;
step A2: the steering mechanism turns the wheels to at least one direction by clockwise rotation or anticlockwise rotation;
step A3: the steering mechanism rotates the wheels back to their original positions.
The method for eliminating the hydraulic disc brake activation retardation comprises the following steps:
the brake caliper is fixedly connected with the vehicle body, one side of the brake caliper is provided with a containing groove, and the periphery of the rotor extends into the containing groove;
the brake piston is arranged on one side of the accommodating groove;
the method for eliminating the hydraulic disc brake actuation retardation includes the following steps:
a first brake pad provided on a side of the brake piston near the rotor;
and the second brake pad is arranged on the other side of the accommodating groove.
The method for eliminating the start retardation of the hydraulic disc brake is characterized in that the other end of the rotating shaft is fixedly connected with the wheel through a wheel screw.
The method for eliminating the start retardation of the hydraulic disc brake is characterized in that a groove communicated with the accommodating groove is formed in the brake caliper, the groove is located on one side, away from the hub, of the accommodating groove, and the brake piston is arranged in the groove.
In the method for eliminating the start-up retardation of the hydraulic disc brake, a bump is arranged on the other side of the accommodating groove, and the second brake pad is arranged on the bump.
The method for eliminating the hydraulic disc brake start blocking includes that a gap is formed between the first brake pad and one side of the rotor and between the second brake pad and the other side of the rotor.
Compared with the prior art, the technical scheme has the positive effects that:
the method of eliminating the activation resistance of a hydraulic disc brake of the present invention does not require modification of the mechanical and electromechanical components of the brake system and is applicable to disc brake systems of all types and brake pads.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a method for eliminating the start-up retardation of a hydraulic disc brake according to the present invention;
FIG. 2 is a schematic view of the overall structure of a method for eliminating the start-up retardation of a hydraulic disc brake according to the present invention in an operating state;
in the drawings: 1. a hub; 2. a wheel screw; 3. a rotor; 4. a rotating shaft; 5. a hub bearing; 6. a brake caliper; 7. a brake piston; 8. a first brake pad; 9. a second brake pad; 10. a containing groove; 11. a bump; 12. and (4) a groove.
Detailed Description
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Fig. 1 is a schematic overall structure diagram of a method for eliminating hydraulic disc brake start-up retardation according to the present invention, fig. 2 is a schematic overall structure diagram of a method for eliminating hydraulic disc brake start-up retardation according to the present invention in an operating state, as shown in fig. 1 and fig. 2, which illustrates a method for eliminating hydraulic disc brake start-up retardation according to a preferred embodiment, including: the brake comprises a hub 1, a rotating shaft 4 and a rotor 3, wherein the hub 1 is arranged on the periphery of the rotating shaft 4, a hub bearing 5 is arranged between the hub 1 and the rotating shaft 4, the rotor 3 is arranged on the periphery of the rotating shaft 4, the rotor 3 is fixedly connected with one end of the hub 1 through a screw, a hydraulic disc brake is arranged on the rotating shaft 4, the hydraulic disc brake comprises two brake pads, and one end of the rotating shaft 4 is provided with a steering mechanism (not shown in the figure);
the method comprises the following steps:
step A1: the vehicle stops;
step A2: the steering mechanism turns wheels (not shown) to at least one direction by rotating clockwise or counterclockwise;
step A3: the steering mechanism rotates the wheels back to their original positions.
Further, as a preferred embodiment, a hydraulic disc brake includes:
the brake caliper 6 is fixedly connected with the vehicle body, one side of the brake caliper 6 is provided with an accommodating groove 10, and the periphery of the rotor 3 extends into the accommodating groove 10;
the brake piston 7 is arranged on one side of the accommodating groove 10;
a first brake pad 8, the first brake pad 8 being provided on a side of the brake piston 7 close to the rotor 3;
and a second brake pad 9, the second brake pad 9 being disposed at the other side of the receiving groove 10.
The above are merely preferred embodiments of the present invention, and the embodiments and the protection scope of the present invention are not limited thereby.
The present invention also has the following embodiments in addition to the above:
in a further embodiment of the present invention, please refer to fig. 1 and fig. 2, the other end of the rotating shaft 4 is fixedly connected to the wheel through the wheel screw 2.
In a further embodiment of the present invention, a groove 12 is formed in the brake caliper 6 and communicates with the receiving groove 10, the groove 12 is located on a side of the receiving groove 10 away from the hub 1, and the brake piston 7 is disposed in the groove 12.
In a further embodiment of the present invention, the other side of the receiving groove 10 is provided with a projection 11, and the second brake pad 9 is provided on the projection 11.
In a further embodiment of the invention, a gap is formed between the first brake pad 8 and one side of the rotor 3 and between the second brake pad 9 and the other side of the rotor 3.
The hub 1 and the rotor 3 rotate around the wheel shaft 4, and the steering of the hub 1 and the rotor 3 is achieved by the hub bearing 5, when the driver steps on the brake pedal, hydraulic pressure is applied to the surface of the brake piston 7 and the brake piston 7 pushes the first brake pad 8 onto the rotor 3, and the frictional force between the two brake pads and the rotor 3 generates a braking torque to decelerate or stop.
When the brake pedal is released, the pressure on the surface of the brake piston 7 also decreases due to the deformation and pretension of its rubber seal, and the brake piston 7 moves away from the hub 1.
If the vehicle is still moving, the uneven surface of the rotor 3 hits both brake pads and a gap is left between the rotor 3 and both brake pads.
If the vehicle stops, the rotor 3 cannot push back both brake pads because the rotor 3 is not rotating. In this case the steering mechanism must turn the wheel and the contact force between the ground and the wheel will load the hub bearing 5, the hub bearing 5 having normal clearance and the entire hub 1 and rotor 3 being able to move relative to the shaft 4 and the brake caliper 6 and the two brake pads due to the load from the contact force between the wheel and the ground, the displacement being limited to the movement of the hub bearing 5 but it is also amplified by the arm distance between the axis of the rotor 3 and the brake pads.
As shown in fig. 2, the rotor has a non-parallel displacement with respect to the two brake pads, thus pushing it back. The relative displacement of the axis of the rotor 3 and the axis of the rotating shaft 4 is within the range of the clearance of the hub bearing 5, and the direction of this displacement depends on the direction of turning.
The method of the invention may be performed automatically by the driver control of the vehicle, the vehicle control system or by remote request or order from other systems or subsystems.
The method of eliminating the activation resistance of a hydraulic disc brake of the present invention does not require modification of the mechanical and electromechanical components of the brake system and is applicable to disc brake systems of all types and brake pads.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (7)
1. A method of removing hydraulic disc brake actuation retardation comprising: the hydraulic disc brake comprises a hub, a rotating shaft and a rotor, wherein the hub is arranged on the periphery of the rotating shaft, a hub bearing is arranged between the hub and the rotating shaft, the rotor is arranged on the periphery of the rotating shaft, the rotor is fixedly connected with one end of the hub through a screw, the hydraulic disc brake is arranged on the rotating shaft, the hydraulic disc brake comprises two brake pads, and one end of the rotating shaft is provided with a steering mechanism;
the method comprises the following steps:
step A1: the vehicle stops;
step A2: the steering mechanism turns the wheels to at least one direction by clockwise rotation or anticlockwise rotation;
step A3: the steering mechanism rotates the wheels back to their original positions.
2. The method of removing hydraulic disc brake activation block of claim 1, wherein the hydraulic disc brake further comprises:
the brake caliper is fixedly connected with the vehicle body, one side of the brake caliper is provided with a containing groove, and the periphery of the rotor extends into the containing groove;
the brake piston is arranged on one side of the accommodating groove.
3. The method of removing hydraulic disc brake actuation retardation of claim 2 wherein both of the brake pads comprise:
a first brake pad provided on a side of the brake piston near the rotor;
and the second brake pad is arranged on the other side of the accommodating groove.
4. The method of removing hydraulic disc brake activation block of claim 1, wherein the other end of the shaft is fixedly attached to the wheel by a wheel screw.
5. A method of removing hydraulic disc brake activation retardation according to claim 2 wherein a recess is provided in the brake caliper in communication with the receiving groove, the recess being located on a side of the receiving groove remote from the hub, the brake piston being located in the recess.
6. A method of removing hydraulic disc brake actuation retardation according to claim 3 wherein the other side of the receiving groove is provided with a projection and the second brake pad is provided on the projection.
7. A method of removing hydraulic disc brake actuation retardation according to claim 3, wherein a gap is formed between the first brake pad and one side of the rotor and between the second brake pad and the other side of the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811297357.5A CN109501781B (en) | 2018-11-01 | 2018-11-01 | Method for eliminating hydraulic disc brake start retardation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811297357.5A CN109501781B (en) | 2018-11-01 | 2018-11-01 | Method for eliminating hydraulic disc brake start retardation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109501781A CN109501781A (en) | 2019-03-22 |
| CN109501781B true CN109501781B (en) | 2022-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811297357.5A Active CN109501781B (en) | 2018-11-01 | 2018-11-01 | Method for eliminating hydraulic disc brake start retardation |
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| Country | Link |
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| CN (1) | CN109501781B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847686A (en) * | 2005-11-15 | 2006-10-18 | 艾凯 | Lag-preventing electromagnetic vehicle brake |
| CN203009666U (en) * | 2012-12-25 | 2013-06-19 | 重庆长安汽车股份有限公司 | Low-drag floating-type braking calibers |
| CN104670177A (en) * | 2014-12-26 | 2015-06-03 | 长城汽车股份有限公司 | Blocking force control method and system of braking system |
| CN106969067A (en) * | 2017-04-20 | 2017-07-21 | 武汉理工大学 | It is low to drag automotive disc floating brake device and its braking method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2415809A1 (en) * | 2002-01-09 | 2003-07-09 | First Principles Engineering Inc. | Hub adapter for a bicycle disc brake |
-
2018
- 2018-11-01 CN CN201811297357.5A patent/CN109501781B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847686A (en) * | 2005-11-15 | 2006-10-18 | 艾凯 | Lag-preventing electromagnetic vehicle brake |
| CN203009666U (en) * | 2012-12-25 | 2013-06-19 | 重庆长安汽车股份有限公司 | Low-drag floating-type braking calibers |
| CN104670177A (en) * | 2014-12-26 | 2015-06-03 | 长城汽车股份有限公司 | Blocking force control method and system of braking system |
| CN106969067A (en) * | 2017-04-20 | 2017-07-21 | 武汉理工大学 | It is low to drag automotive disc floating brake device and its braking method |
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| Publication number | Publication date |
|---|---|
| CN109501781A (en) | 2019-03-22 |
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