Brake Pedal Module Integration via Self-Contained Damping

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Solution Overview

Problem

Brake-by-wire systems lack a simple integration method for brake pedal modules into vehicle installation spaces due to complex hydraulic simulations and mechanical connections.

Innovation Solution

A pre-assembled brake pedal module with a carrier component, pivotably mounted brake pedal, and a self-contained damping unit, which is mechanically coupled to produce resistance, allowing for compact and easy installation without additional mechanical support, and featuring a sensor unit for detecting driver intention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If hydraulic systems are used to simulate brake pedal reaction behavior, then the reaction behavior simulation is improved, but the integration complexity into vehicle environment increases

Engineering Contradiction:
Improvereaction behavior simulationVSAvoidintegration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the brake pedal, damping unit, and sensor unit into a single integrated brake pedal module that is self-contained in terms of forces. This merging eliminates the need for complex hydraulic connections to the vehicle structure while maintaining accurate reaction behavior simulation through the integrated damping mechanism.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The brake pedal module is designed to be self-contained, with the damping unit providing reaction force simulation internally without requiring external hydraulic systems. The module serves itself by generating the necessary resistance forces through its own damping mechanism, eliminating dependency on complex vehicle-integrated hydraulic infrastructure.

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If brake pedal module components are separately mounted on the vehicle, then individual component installation is flexible, but the overall installation process becomes more complex and requires additional mechanical support

Engineering Contradiction:
Improveinstallation flexibilityVSAvoidinstallation process
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

All components (brake pedal, damping unit, sensor unit) are pre-assembled on a common carrier component forming a self-contained module. This integration reduces the installation process to securing a single module to the vehicle, eliminating the need for multiple separate mounting operations and additional mechanical support structures.

Inventive Principle:
Principle #5Merging (Combining)

3Volume of moving object

If the damping unit is arranged in the space between the carrier component and brake pedal, then the brake pedal module achieves compact design, but the space utilization becomes more constrained

Engineering Contradiction:
Improvemodule compactnessVSAvoidspace utilization
Core Design Contradiction:
Volume of moving objectVSAdaptability or versatility

Solution Approach 1:

The damping unit is nested within the existing structural space between the carrier component and brake pedal assembly. This nested arrangement utilizes otherwise wasted space, achieving compact module design without requiring additional external space or compromising the actuating movement range of the brake pedal.

Inventive Principle:
Principle #7Nested doll (Nesting)

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

Enables straightforward integration and compact design of the brake pedal module, reducing installation complexity and eliminating the need for fluid connections, while effectively simulating brake pedal resistance and detecting driver braking intentions.

Implementation Method 1

a damping unit, which is mechanically coupled at one end to the brake pedal and at the other end to the carrier component in order to produce a resistance when the brake pedal is actuated

Methodology Applied
Scientific EffectDamping: Damping

Data Source

PatentUS20230036663A1Brake pedal module
Publication Date: 2023.02.02 ZF ACTIVE SAFETY GMBH
  • US20230036663A1 patent drawing
  • US20230036663A1 patent drawing
  • US20230036663A1 patent drawing

AI summary

A brake pedal module for a “brake-by-wire” brake system of a vehicle is disclosed. The brake pedal module has a carrier component for securing the brake pedal module on the vehicle, a brake pedal, which is mounted pivotably on the carrier component, and a damping unit, which is mechanically coupled at one end to the brake pedal and at the other end to the carrier component in order to produce a resistance when the brake pedal is actuated. The brake pedal module is a pre-assembled structural unit which is self-contained in terms of forces.