Torque Transferring Assembly for Brake Caliper
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Solution Overview
Problem
Existing vehicle brake systems require multiple motors or large motors to create and release clamping force, which is heavy, costly, and inefficient for multi-piston hydraulic brake systems.
Innovation Solution
A torque transferring assembly with a single motor that uses a spider to distribute torque to multiple brake pistons, allowing for efficient creation and release of clamping force by transferring torque from a single source to multiple outputs, enabling the brake pistons to operate independently based on load resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If multiple motors or large motors are used to create and release clamping force, then sufficient braking force is achieved, but weight increases and cost increases
Solution Approach 1:
The patent combines multiple brake pistons into a single integrated brake caliper assembly that shares common structural components and housing. This merging approach allows multiple pistons to work together to generate clamping force on a single brake rotor, achieving sufficient braking force while reducing overall system weight compared to using separate motor-piston assemblies for each piston.
Solution Approach 2:
The brake caliper assembly is designed to perform multiple functions: it houses multiple brake pistons, provides structural support for the brake pads, and serves as the mounting interface for the single motor. This multi-functional design eliminates the need for separate structural components for each piston, reducing weight and cost while maintaining sufficient clamping force capability.
2Force
If multiple motors or large motors are used to create and release clamping force, then sufficient braking force is achieved, but cost increases
Solution Approach 1:
The patent merges multiple brake pistons into a single integrated caliper assembly with shared housing and mounting structures. This consolidation reduces the number of separate components that need to be manufactured and assembled, lowering manufacturing costs while maintaining the capability to generate sufficient clamping force through coordinated piston action.
Solution Approach 2:
The single motor is designed to perform multiple functions: it provides rotational actuation for the entire brake assembly, drives the torque transferring mechanism, and enables both brake application and release operations. This multi-functionality eliminates the need for multiple specialized motors, significantly reducing system cost while maintaining full braking capability.
3Weight of moving object
If a single motor is used to move multiple brake pistons, then weight is reduced and cost is reduced, but device complexity increases
Solution Approach 1:
The patent introduces a torque transferring assembly as an intermediary mechanism between the single motor and multiple brake pistons. This assembly includes a spider with torque transferring elements that distributes rotational torque from the motor to multiple pistons, enabling coordinated piston movement. While this adds mechanical complexity, it maintains weight and cost advantages compared to using multiple motors.
Solution Approach 2:
The patent replaces the complex electrical control system that would be required to independently control multiple motors with a simpler mechanical torque distribution system. The torque transferring assembly uses pure mechanical elements (spider, torque transferring elements, races) to distribute torque, eliminating the need for complex electronic control architecture while achieving coordinated piston actuation.
4Ease of manufacture
If a single motor is used to move multiple brake pistons, then cost is reduced, but device complexity increases
Solution Approach 1:
The torque transferring assembly serves as a mechanical intermediary that simplifies the overall system architecture by replacing multiple independent motor-piston assemblies with a single motor-driven distribution system. Although the torque transferring mechanism itself is mechanically complex, it eliminates the need for multiple motors and their associated control systems, resulting in lower overall system cost.
Solution Approach 2:
The single motor is designed as a universal actuator that performs all braking operations for multiple pistons through the torque transferring assembly. This multi-functional approach consolidates what would otherwise require multiple specialized motors and control units, reducing system cost while the mechanical complexity is contained within the torque transferring mechanism rather than distributed across multiple independent systems.
Data Source
AI summary
A torque transferring assembly that includes: a first output; a second output; and a spider located in between the first output and the second output. The spider is adapted to support a plurality of torque transferring elements such that each of the torque transferring elements are in communication with both of the first output and the second output. The torque transferring assembly is adapted to supply a torque to both the first output and the second output so that both outputs rotate together until a load or resistance acting on the first output becomes higher than a load or resistance acting on the second output. The torque transferring assembly is then adapted to transfer the torque to the second output so that the first output slows or ceases to rotate, while the second output continues to rotate.