DESC:FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENT RULES, 2003
COMPLETE SPECIFICATION
[See Section 10 and Rule 13]
TITLE:

“AN INTEGRATED BRAKING SYSTEM FOR VEHICLES”

APPLICANT:

PADMINI VNA MECHATRONICS LIMITED
A company incorporated under the Indian Companies Act, 1956
having address at
Plot No. 100-101, Sector 35, Phase VII, Udyog Vihar,
Gurgaon-122001, Haryana, India

PREAMBLE TO THE DESCRIPTION:
The following specification particularly describes the invention and the manner in which it is to be performed:

FIELD OF THE INVENTION
The present invention relates to the field of braking systems and devices for vehicles. More particularly, the present invention relates to an integrated braking system for vehicles such as two-wheeled vehicles.
BACKGROUND OF THE INVENTION
A braking mechanism of a vehicle is a primitive component, as the braking mechanism in the vehicle plays an important role in ensuring safety of the driver. The braking mechanism is implemented via a braking system that comprise multiple components such as brake pads, brake rotors, calipers and brake fluid that operates together when a brake pedal is pressed by the driver. The components of the braking system permits the driver to control a speed of the vehicle and also facilitates in bringing the speed to an optimal level for preventing accidents or collisions. The braking system is configured in such a manner that kinetic energy of the vehicle is converted into thermal energy i.e. heat by friction.
Conventionally, in a two-wheeled vehicle, a front wheel brake and a rear wheel brake are connected to individual brake levers which are mounted on a handlebar. The left hand side lever is responsible for actuating only the rear wheel brake and similarly the right-hand side lever is responsible for actuating only front wheel brake. Additionally, the currently available two-wheeler braking systems use either hand operated brakes for both front and rear brakes or utilizes a combination of hand lever and foot lever for operating front and rear brakes respectively.
Further, in the event of braking, the driver usually applies the rear wheel brakes alone. Also, application both wheel brakes at the same time may be inconvenient for the driver. When the driver applies only rear wheel brakes, there is a limited deceleration observed on the vehicle since because of inertia the vehicle weight transfers from rear axle to front axle and also there is no braking force on front wheel, and due to this a significantly large stopping distance is achieved. On the other hand, when the driver applies only front wheel brakes, less weight on front wheel and weight transfer towards front wheel leads to sudden jerk to the vehicle. This affects the ride quality and disturbs the stability of the vehicle.
CN216994728U discloses a pressure control valve and a brake system capable of reducing pressure difference inside a cylinder to prevent a handle from being rebounded when a brake is applied. However, this invention does not allows to operate both front and rear wheel brakes through a single liver. Moreover, this invention is complex due to large number of components which also makes this invention costly.
US7913824B2 discloses a disk brake device suitable for a motorcycle having a first air discharge mouth and a first hose connection mouth connected to a center cylinder project from an outer face of the caliper case in close proximity and so that the axes of the first hose connection mouth and the first air discharge mouth are parallel. However, this invention does not allows to operate both front and rear wheel brakes through a single liver. Moreover, this invention is complex due to large number of components which also makes this invention costly.
Several alternate solutions are available in the field of braking systems which aims to improve the ride quality and stability of vehicle, however none of the solutions allow simultaneous operation of both front and rear wheel brakes through single lever and includes a large number of components which ultimately increases the cost and resource consumption.
Therefore, there is a need of integrated braking system for vehicles such as two-wheeled vehicles.
OBJECT OF THE INVENTION
The main object of the present invention is to provide an integrated braking system for vehicles such as two-wheeled vehicles.
Another object of the present invention is to provide an integrated braking system which involves comparatively a smaller number of child parts.
Yet another object of the present invention is to provide an integrated braking system that is less complex and cost effective.
Yet another object of the present invention is to provide an integrated braking system that create a mechanism which allows simultaneous braking in front and rear wheel through single level.
Still another object of the present invention is to provide integrated braking system that is used in vehicles having disc brakes in both front wheel and rear wheel.
SUMMARY OF THE INVENTION
The present invention relates to an integrated braking system for vehicles such as two-wheeled vehicles, which allows simultaneous braking in front and rear wheel through single level, involves comparatively a smaller number of child parts due to which the present invention is cost friendly, less complex and more robust.
In an embodiment, the present invention provides integrated braking system that comprises a set of cylinder assembly mounted on a handle bar, wherein the set of cylinders include a left hand side master cylinder assembly and a right hand side master cylinder assembly. The integrated braking system includes a combined braking valve disposed such that a connection is established with the set of cylinders via a set of brake hoses to facilitate simultaneous braking in a front wheel and a rear wheel through a single lever. The combined braking valve comprises a body that encompasses a piston and piston is assembled with cup seals to ensure proper sealing and pressure transfer, a bleeder for air removal, a set of hydraulic connections, and a spring to return the piston to and original position after actuation, an end plug for securing all the components within the body, a washer for preventing fluid leakage and a plurality of chambers integral to a pressure distribution and brake circuit function.
The above objects and advantages of the present invention will become apparent from the hereinafter set forth brief description of the drawings, detailed description of the invention, and claims appended herewith.
BRIEF DESCRIPTION OF THE DRAWINGS
An understanding of the integrated braking system for vehicles of the present invention may be obtained by reference to the following drawings:
Figure 1 is a schematic view of the integrated braking system according to an embodiment of the present invention.
Figure 2 is a perspective view of the integrated braking system according to an embodiment of the present invention.
Figure 3 is a sectional view of the combined braking valve in the integrated braking system according to an embodiment of the present invention.
Figure 4 is an exploded view of the combined braking valve in the integrated braking system according to an embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
The present invention will now be described hereinafter with reference to the accompanying drawings in which a preferred embodiment of the invention is shown. This invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiment set forth herein. Rather, the embodiment is provided so that this disclosure will be thorough, and will fully convey the scope of the invention to those skilled in the art.
Many aspects of the invention can be better understood with references made to the drawings below. The components in the drawings are not necessarily drawn to scale. Instead, emphasis is placed upon clearly illustrating the components of the present invention. Moreover, like reference numerals designate corresponding parts through the several views in the drawings. Before explaining at least one embodiment of the invention, it is to be understood that the embodiments of the invention are not limited in their application to the details of construction and to the arrangement of the components set forth in the following description or illustrated in the drawings. The embodiments of the invention are capable of being practiced and carried out in various ways. In addition, the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.
The present invention now will be described hereinafter with reference to the detailed description, in which some, but not all embodiments of the invention are indicated. Indeed, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Like numbers refer to like elements throughout. The present invention is described fully herein with non-limiting embodiments and exemplary experimentation.
The present invention relates to an integrated braking system for vehicles such as two-wheeled vehicles, which allows simultaneous braking in front and rear wheel through single level, involves comparatively a smaller number of child parts due to which the present invention is cost friendly, less complex and more robust.
In an embodiment, the present invention provides integrated braking system that comprises a set of cylinder assembly mounted on a handle bar, wherein the set of cylinders include a left hand side master cylinder assembly and a right hand side master cylinder assembly. The integrated braking system include a combined braking valve is disposed such that a connection is established with the set of cylinders via a set of brake hoses to facilitate simultaneous braking in a front wheel and a rear wheel through a single lever. The combined braking valve comprises a body that encompasses a piston and piston is assembled with cup seals to ensure proper sealing and pressure transfer, a bleeder for air removal, a set of hydraulic connections, and a spring to return the piston to and original position after actuation, an end plug for securing all the components within the body, a washer for preventing fluid leakage and a plurality of chambers integral to a pressure distribution and brake circuit function.
Referring to Figure 1, a schematic view of the integrated braking system according to an embodiment of the present invention is depicted. The integrated braking system (1000) comprises a set of cylinder assemblies, a set of brake hoses (400, 500, 600, 700), a combined braking valve (800), a front brake caliper (900), and a rear brake caliper (950).
In an embodiment of the present invention, the set of cylinder assemblies include a left hand side master cylinder assembly (100) and a right hand side master cylinder assembly (200) which are mounted on a handle bar (300) of a vehicle such as two-wheeled vehicle. Further, the left hand side master cylinder assembly (100) is connected to a combined braking valve (800) through the brake hose (400) and the right hand side master cylinder assembly (200) is connected to the combined braking valve (800) through the brake hose (500). Further, the brake hoses (400, 500) supply a pressurized brake fluid from the master cylinder assembly (100, 200) to the combined braking valve (800). Further, an output of the combined braking valve (800) is sent to the front brake caliper (900) through the brake hose (600) and rear brake caliper (950) through the brake hose (700).
Referring to Figure 2, a perspective view of the combined braking valve in the integrated braking system according to an embodiment of the present invention is depicted. Referring to Figure 3, a sectional view of the combined braking valve in the integrated braking system according to an embodiment of the present invention is depicted. Referring to Figure 4, an exploded view of the combined braking valve in the integrated braking system according to an embodiment of the present invention is depicted. For the sake of brevity, description of Figure 2, Figure 3 and Figure 4 have been provided together.
In an embodiment of the present invention, the combined braking valve (800) comprises a body (806) that encompasses a piston (803). The piston (803) is assembled with a plurality of cup seals (801, 802, 811) to ensure proper sealing and pressure transfer. The combined braking valve (800) further comprises a bleeder (804) for air removal, a set of hydraulic connections (805, 812, 814), and a spring (810) to return the piston (803) to original position after actuation. The combined braking valve (800) further comprises an end plug (807) for securing all the components within the body (806). The combined braking valve (800) further comprises a washer (809) for preventing fluid leakage. The combined braking valve (800) further comprises a plurality of chambers (808, 813, 815) integral to a pressure distribution and brake circuit function.
Further, when a driver applies a pre-defined amount of input force on right hand master cylinder assembly (200), the pressurized brake fluid is pushed into the combined braking valve (800) through the brake hose (500). The pressurized brake fluid enters a chamber (808) in the combined braking valve (800) through a connection (812). Then the fluid goes to the front brake caliper (900) through the hydraulic connection (805) and the brake hose (600). Further, a piston present in front brake caliper (900) then actuates and applies force on brake pads which then clamp a brake disc to generate a desired brake torque, and the brakes are applied to the front wheel.
Further, when the driver applies input force on left hand side master cylinder assembly (100), the pressurized brake fluid is pushed into combined braking valve (800) through the brake hose (400). Since, the brake hose (400) and the brake hose (700) are assembled together at the hydraulic connection (814) of the combined braking valve (800), the inlet pressure from the hose (400) goes directly to the rear brake caliper (950) through the brake hose (700). Thus, brake torque is generated in the rear wheel.
At the same time, the inlet pressure from the brake hose (400) enters the chamber (815) of the combined braking valve (800) and pushes the piston (803) towards a right side and creates pressure in the chamber (808). A cup seal (801) facilitates in generation of positive pressure in the chamber (815) which in turn pushes the piston (803) towards right. The trigger point of the piston (803) –is controlled by the spring (810). Hence, when the pressure in the chamber (815) reaches a certain level which overcomes the force of the spring (810) then only the piston (803) starts moving. This phenomenon creates a delay of pressure generation in the chamber (808). So, the generated pressure in the chamber (808) goes to the front brake caliper (900) through the hydraulic connection (805) and the brake hose (600). Further, a cup seal (802) is provided to resist the brake fluid coming from the brake hose (500) to the chamber (815).
In other words, when the left hand side master cylinder assembly (100) is operated, brake fluid pressure from the brake hose (400) enters the chamber (815) of the combined braking valve (800), pushing the piston (803) towards the right. This movement generates pressure in the chamber (808), activating the front brake circuit.
In addition to this, when the rear brake is applied using the left hand side master cylinder assembly (100), the combined braking valve (800) connected in-line activates. As a result, the piston (803) inside the combined braking valve (800) moves and generates pressure in the front braking system, enabling simultaneous braking at the front.
Further, the cup seal (811) is provided to avoid leakage of brake fluid from the chambers (808 to 813). Also, the bleeder (804) is provided to remove air from the chamber (813) at the time of bleeding the brake circuit. Additionally, the end plug (807) is securely tightened with help of the washer (809) which is preferably a copper washer (i.e. a washer that is made from copper material) that is placed in between to avoid any leakage from the combined braking valve (800).
Therefore, the present invention provides an integrated braking system for vehicles such as two-wheeled vehicles that includes less number of child parts, due to which the present invention is less complex and cost effective and the operational efficiency of the an integrated braking system for vehicles such as two-wheeled vehicles.is higher and the integrated braking system for vehicles such as two-wheeled vehicle prevents leakage. Additionally, the present invention is more compact and easily package in the space available in the vehicle.
Many modifications and other embodiments of the invention set forth herein will readily occur to one skilled in the art to which the invention pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the invention is not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
,CLAIMS:CLAIMS
We claim:
1. An integrate braking system (1000) for vehicles comprising:
a set of cylinder assembly mounted on a handle bar (300), wherein the set of cylinders include a left hand side master cylinder assembly (100) and a right hand side master cylinder assembly (200);
a combined braking valve (800) is disposed such that a connection is established with the set of cylinders via a set of brake hoses (400, 500, 600, 700) to facilitate simultaneous braking in a front wheel and a rear wheel through a single lever, wherein the combined braking valve (800) comprises:
i. a body (806) that encompasses a piston (803) and the piston (803) is assembled with a plurality of cup seals (801, 802, 811) to ensure sealing and pressure transfer;
ii. a bleeder (804) for air removal, a set of hydraulic connections (805, 812, 814), and a spring (810) to return the piston (803) to and original position after actuation;
iii. an end plug (807) for securing components within the body (806);
iv. a washer (809) for preventing fluid leakage; and
v. a plurality of chambers (808, 813, 815) integral to a pressure distribution and a brake circuit function.
2. The integrated braking system (1000) for vehicle as claimed in claim 1, wherein in case of application of pre-defined amount of input force on the right hand master cylinder assembly (200), a pressurized brake fluid is pushed into the combined braking valve (800) through a brake hose (500), wherein the pressured brake fluid enters a chamber (808) in the combined braking valve (800) through a connection (812) and flows to a front brake caliper (900) through a connection (805) and a brake hose (600), wherein the front brake caliper (900) includes a piston that actuates and applies force on a brake pad which clamps a brake disk to generate a desired brake torque, resulting in application of brakes in the front wheel.
3. The integrated braking system (1000) for vehicle as claimed in claim 1, wherein in case of application of pre-defined amount of input force on the left hand master cylinder assembly (100), the pressurized brake fluid pushed into combined braking valve (800) through the brake hose (400), wherein the brake hose (400) and the brake hose (700) are assembled together at the hydraulic connection (814) of the combined braking valve (800), wherein an inlet pressure is directed through the brake hose (700) to a rear brake caliper (950), thereby generating brake torque in the rear wheel.
4. The integrated braking system (1000) for vehicle as claimed in claim 1, wherein the inlet pressure from the brake hose (400) enters the chamber (815) of the combined braking valve (800) and pushes the piston (803) towards right, creating pressure in the chamber (808), where the cup seal (801) facilitates the generation of positive pressure in the chamber (815), and when the pressure in the chamber (815) reaches a level sufficient to overcome a force of the spring (810), the piston (803) begins to move, causing a delay in pressure build-up in the chamber (808), and the pressure generated is then directed to the front brake caliper (900) through the hydraulic connection (805) and the brake hose (600), while the cup seal (802) prevents brake fluid from the brake hose (500) from entering the chamber (815).
5. The integrated braking system (1000) for vehicle as claimed in claim 1, wherein the chamber (808, 813) are provided with the cup seal (811) to avoid leakage of brake fluid.
6. The integrated braking system (1000) for vehicle as claimed in claim 1, wherein the bleeder (804) is provided to remove air from the chamber (813) at the time of bleeding the brake circuit.
7. The integrated braking system (1000) for vehicle as claimed in claim 1, wherein the end plug (807) is securely tightened with help of the washer (809) that is placed in between to avoid any leakage from the combined braking valve (800).
8. The integrated braking system (1000) for vehicle as claimed in claim 1, wherein the washer (809) is preferably made of copper.

Dated this on 24th day of July, 2025