Opposed Caliper Brake Layout With Single-Side Electronic Parking
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Solution Overview
Problem
The integration of an electronic parking brake with an opposed brake device is challenging due to the need for separate installation of motors, gears, and pistons on both sides of the main braking system, which complicates the configuration and increases the volume of the brake system.
Innovation Solution
A brake device is designed with a main braking caliper body and a parking caliper body that are integrated, where the parking piston pressurizes the second brake pad, causing the locking part of the parking caliper body to move the first brake pad toward the second brake pad, utilizing a single parking piston and motor located on one side, and a slidable parking caliper body is added to the main braking caliper body to implement the electronic parking brake within the opposed caliper brake system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an electronic parking brake is integrated with an opposed brake device, then the braking performance and symmetrical structure are maintained, but the system complexity and volume increase due to requiring motors, gears, and pistons on both sides
Solution Approach 1:
The patent merges the main braking function and parking brake function into a single integrated caliper body. The parking brake piston is integrated with the main braking piston, and the parking brake uses the same brake pads as the main braking system. This consolidation eliminates the need for separate motors, gears, and pistons on both sides, thereby reducing system complexity while maintaining the symmetrical opposed braking structure for reliable braking performance.
2Ease of operation
If motors, gears, and pistons are installed on both sides of the main braking system for electronic parking brake, then the parking brake function is achieved, but the volume and structural complexity increase
Solution Approach 1:
The patent combines the parking brake piston with the main braking piston into a single integrated piston structure. The parking brake caliper body is merged with the main braking caliper body, eliminating the need for duplicate components on both sides. This integration significantly reduces the overall volume of the brake system while maintaining full parking brake functionality through electronic actuation.
Solution Approach 2:
The brake pads serve dual functions: they are used for both main braking during driving and for parking brake application. The same caliper body houses both the main braking piston and the parking brake piston, allowing a single component to perform multiple functions. This multi-functionality reduces the number of parts and overall system volume while achieving the desired parking brake operation.
3Ease of operation
If a separate electronic parking brake is provided from the main braking brake, then the parking brake function is achieved, but the number of parts and structural complexity increase
Solution Approach 1:
The patent integrates the electronic parking brake system with the main braking system by merging the caliper bodies and pistons. The parking brake piston is incorporated into the main braking piston assembly, and the same brake pads are used for both functions. This integration reduces the number of parts significantly compared to having a separate parking brake system, while maintaining ease of electronic operation through motor actuation.
Solution Approach 2:
The brake pads are designed to serve both main braking and parking brake functions. The caliper body is structured to accommodate both the main braking piston and the parking brake piston, allowing a single component to perform multiple functions. This multi-functionality reduces the quantity of parts needed while achieving full parking brake operation through the integrated electronic system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration simplifies the system, reduces the number of parts, and allows for efficient integration of the main braking and parking functions, enhancing braking performance while maintaining the advantages of the opposed caliper brake's symmetrical structure and braking power.
Implementation Method 1
a parking piston installed on the parking caliper body and pressuring the second surface of the second brake pad, wherein, when the parking piston pressurizes the second brake pad, the locking part of the parking caliper body moves the first brake pad toward the second brake pad
Implementation Method 2
brakes a vehicle by strongly pressing a disc-shaped brake disc rotating together with the wheel using brake pads from both sides
Data Source
AI summary
A brake device comprises a main braking caliper body, a brake pad part including a first brake pad and a second brake pad that are arranged at one side and another side of the main braking caliper body and have first surfaces facing each other, a main braking piston pressurizing second surfaces of the first brake pad and the second brake pad to shorten a distance between the first brake pad and the second brake pad, a parking caliper body coupled to the main braking caliper body and including a locking part caught by the second surface of the first brake pad and a parking piston installed on the parking caliper body and pressuring the second surface of the second brake pad, when the parking piston pressurizes the second brake pad, the locking part of the parking caliper body moves the first brake pad toward the second brake pad.