Parking brake and support system

Abstract

The present invention relates to a parking brake and / or support system that aims to support the parking brakes used in braking through the shaft fitted to the differential in military applications, which ensures stopping the vehicles on steep slopes with the support of service brakes via automatic bypassing of brake pedal (by activating the service brakes). The present invention particularly relates to a parking brake and / or support system that comprises a solenoid valve (10), which opens by detecting the signal of electric control unit via triggering of parking brake button, enabling transfer of the pressure from the reservoir (R) along parking and / or support brake line (40) to the brake system, hence allowing the braking operation.

Description

[0001] PARKING BRAKE AND SUPPORT SYSTEM

[0002] TECHNICAL FIELD

[0003] The present invention relates to a parking brake and / or support system that aims to support the parking brakes used in braking through the shaft fitted to the differential in military applications, which ensures stopping the vehicles on steep slopes with the support of service brakes via automatic bypassing of brake pedal (by activating the service brakes).

[0004] The present invention particularly relates to a parking brake and / or support system that comprises a solenoid valve, which opens by detecting the signal of electric control unit via triggering of parking brake button, enabling transfer of the pressure from the reservoir along parking and / or support brake line to the brake system, hence allowing the braking operation.

[0005] KNOWN STATUS OF ART

[0006] Concurrently with technological advancements, significant progress has been made in the evolution of military vehicles. The primary objectives driving these advancements include the pursuit of making military vehicles faster, more comfortable, convenient, and reliable. These vehicles have brakes that allow stopping the vehicle in parking position. Today, the parking brakes are provided via pneumatic service brakes with emergency brakes, or with parking brake caliper systems with external hydraulic support.

[0007] In the current technique, the parking brake support solution is provided via the pneumatic brakes with emergency brake air chambers. However, it is not possible to pack this system together with the independent suspension system due to the requirement of high maneuverability. Emergency brakes hinder the maneuverability of vehicle, because they limit the steering wheel angles of vehicle as pack.

[0008] In the current technique, hydraulic parking brake system is an external structure, and it has no use other than parking. The calipers, disks, and bearing elements consisting of cast and forged components cause inefficiency for the system in terms of weight and cost. In addition, they introduce the need of hydraulic and pneumatic hose routing on the vehicle for each caliper, creating a complex mounting process.

[0009] Consequently, the demand for a novel, cost-effective, comfortable, and practical parking brake and / or support system has arisen to address the challenges posed by current technology and the limitations of existing solutions in the relevant technical field. This necessitated a developmental breakthrough in this domain.

[0010] PURPOSE OF THE INVENTION

[0011] The present invention relates to a parking brake and / or support system that has been developed to eliminate the aforementioned disadvantages and bring new advantages to the relevant technical field, which ensures stopping the vehicles on steep slopes with the support of service brakes via automatic bypassing of brake pedal (by activating the service brakes).

[0012] The most important purpose of the present invention is to use the brake as a standalone parking brake, as well as a support system for the existing parking brake.

[0013] Another important purpose of the present invention is not to impact the maneuverability of the vehicle. The system subject to the present invention is extremely easy-to-pack, and the valves subject to the application can be easily packed in many locations of the vehicle. They can be packed inside or outside the vehicle. This allows flexibility in terms of packing, while also ensuring less exposure to the environmental factors. Another important purpose of the present invention is providing a powerful braking torque. Emergency brake chambers are integrated into the axles with low wheel angles, and operate via activation of the brakes only on the specific axle. However, the system subject to the present invention provides a more powerful braking torque by activating all of brakes.

[0014] Another important purpose of the present invention is to reduce the number of axles on which the parking brake is used, and hence providing advantage in terms of cost and weight.

[0015] Another important purpose of the present invention is to use the system in both pneumatic-assisted hydraulic, and pneumatic brake systems.

[0016] Another important purpose of the present invention is allowing the brake pedal to have the quality of primary control all the time thanks to the pressure reducing valves integrated into the invention.

[0017] Another important purpose of the present invention is to ensure activation of service brakes in case of malfunctions on foot brake pedal. In addition, in case the brake pedal valve malfunctions, it provides additional safety for the system, and ensures that the service brakes are available for use.

[0018] Another important purpose of the present invention is to ensure use with the algorithm integration, which is also necessary for the systems that require automatic braking, hill start assist and autonomous brake. In cases requiring automatic braking and hill start assist, solenoid valve is triggered electronically again, allowing integration of many functions into the vehicle. The following figures and their detailed descriptions will make the invention's structural and characteristic features and its advantages easier to understand. Therefore, the assessment should be made by considering the images and their detailed descriptions.

[0019] FIGURES PROVIDED TO HELP UNDERSTAND THE INVENTION

[0020] FIGURE -1; The figure showing the brake diagram used in the current technique.

[0021] FIGURE -2; The figure showing the brake diagram of the parking brake and / or support system subject to the present invention.

[0022] REFERENCE NUMBERS

[0023] B. Compression System

[0024] R. Reservoir

[0025] F. Brake System

[0026] V. Foot Brake Valve

[0027] H. Foot Brake Line

[0028] 10. Solenoid Valve

[0029] 20. Pressure Reducing Valve

[0030] 30. Two-Way Control Valve

[0031] 40. parking and / or support brake Line

[0032] DETAILED DESCRIPTION OF THE INVENTION This detailed explanation describes the preferred configurations of the parking brake and / or support system only for a better understanding of the subject matter and no limitations should be construed.

[0033] In Figure 1, the diagram of the brake system used in the current technique is given. Here, the valve is opened via pressing the foot brake valve (V), which transfers the compressed air or hydraulic oil in the reservoir (R) to the brake system (F), initiating the braking operation. In this technique, the compression system (B) compresses the hydraulic oil or air in the reservoir (R).

[0034] In Figure 2, the brake diagram of the parking brake and / or support system subject to the present invention is given. In our present invention, a parking brake and / or support system has been obtained by adding new components to the current brake system. Here, the pressure is transferred to the solenoid valve (10) via the lines between the reservoir (R) - foot brake valve (V) separately (to control both the front and the rear brake) with a bend. Solenoid valve (10) is normally closed. When the parking brake button is triggered, electrical control unit detects the signal and sends signal to solenoid valve (10). This signal also triggers the solenoid valve (10), which pressurizes the parking and / or support brake line (40). Pressure reducing valve (20) reduces the pressure to the desired level, and transfers to the two-way control valve (30). Then the two-way control valve (30) ensures connection to the main brake system line, the pressure reaches to the brake system (F) and the braking operation is performed. The two-way control valve (30) operates in two directions; it closes the parking and / or support brake line (40) when pressure is transferred from the foot pedal valve (V), and it closes the foot brake line (H) when pressure is transferred only from the parking and / or support brake line (40). And hence the brakes are activated.

[0035] The system in our present invention can be used for hydraulic, pneumatic and pneumatic-assisted hydraulic systems. In the present invention, if it is required to have the main control of the brake system on the foot pedal valve (V) due to safety criteria, it is possible to limit the pressure. In addition, in case of malfunction on foot brake pedal valve (V), it is possible to limit the brake pressure for preventing unsafe driving conditions when the parking brake and / or support system is activated as stated in the present invention.

[0036] Our present invention can also be used with the necessary algorithm changes for the systems that require autonomous braking such as hill start assist. In cases requiring automatic braking and hill start assist, solenoid valve (10) is triggered electronically again, allowing integration of many adaptive functions into the vehicle. In addition, in cases where automatic braking is required, our present invention ensures braking via sending signal to the solenoid valve (10).

[0037] Starting the armoured military vehicles in high slope angles require high level of drive experience, and lack of experience or attention can cause safety risks. When starting the vehicle on steep slopes, steep slope start mode is activated. The information of tilt sensor, vehicle speed, gas pedal position and engine torque are received. When the required torque level and gas pedal position is reached according to the tilt information from the sensor, or when the vehicle speed is higher than zero, electronic control unit stops the solenoid valve (10) signal, and deactivates the service brakes. In cases where automatic braking is required, our present invention ensures braking via sending signal to the solenoid valve (10).

[0038] The scope of protection for this application is defined by the claims and is not restricted to the illustrative description provided above. It is evident that a skilled person in the field can establish the novelty of the invention by employing similar embodiments. Furthermore, this embodiment can be applied to other fields with similar purposes within the relevant art. It is therefore obvious that such structures will lack the criterion of innovation and particularly the criterion of exceeding the prior art.

Claims

CLAIMS1- The present invention is related to the parking brake and / or support system that stops the vehicles on steep slopes with the support of the service brakes via bypassing the brake pedal automatically, characterized in that; it comprises a solenoid valve (10), which opens by detecting the signal of electric control unit via triggering of parking brake button, enabling transfer of the pressure from the reservoir (R) along parking and / or support brake line (40) to the brake system, hence allowing the braking operation.2- The present invention is a parking brake and / or support system according to Claim 1, characterized in that; it comprises the pressure reducing valve (20) that reduces the pressure in parking and / or support brake line (40).3- The present invention is a parking brake and / or support system according to Claim 1, characterized in that; it comprises the two-way control valve (30) that operates in two directions; which closes the parking and / or support brake line (40) when pressure is transferred from the foot pedal valve (V), and closes the foot brake line (H) when pressure is transferred only from the parking and / or support brake line (40).

Images