Sensor-Integrated Multiple Disk Brake for Fine-Tuned Torque Control

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Solution Overview

Problem

Existing multiple disk brakes for utility vehicles are not suitable for fine-tuned control and monitoring in light passenger vehicles or people-movers, lacking the precision and adaptability needed for modern passenger vehicle drivetrains.

Innovation Solution

A novel multiple disk brake system integrated with sensor means, allowing for precise control through an electronically interconnected system with separate mechanical and electrical interfaces, featuring a stator structure, primary and intermediate disks, an application element, and a restoring unit with a sensor disk and magnet detector arrangement for detecting braking force and torque.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional spring-loaded brake is used for utility vehicles, then the brake provides reliable parking brake function with spring prestress, but the brake lacks fine-tuned controllability and cannot be precisely monitored or controlled for modern passenger vehicle drivetrains

Engineering Contradiction:
Improvefine-tuned controllabilityVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the purely mechanical spring-loaded brake actuation system with an electromechanical system. An electric motor-driven actuator substitutes the spring prestress mechanism, enabling precise electronic control of the brake application force. This allows the brake to be controllably actuated in fine-tuned meters, suitable for modern passenger vehicle drivetrains with regenerative braking systems, while maintaining the essential parking brake function.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent incorporates sensor means that detect the actual braking effect and feed this information back to an electronic control unit. The sensor system monitors parameters such as disk position, braking force, or torque, enabling closed-loop control. This feedback mechanism provides precise monitoring and control of the brake, allowing the electronic control unit to adjust the actuation force to achieve desired braking characteristics.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If heavy-duty multiple disk brakes are used for utility vehicles, then the brake provides robust braking performance, but the brake lacks the precision and adaptability needed for light passenger vehicles or people-movers

Engineering Contradiction:
Improveadaptability to passenger vehicle drivetrainsVSAvoidcontrol precision
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent transforms the static, fixed-force characteristics of traditional spring-loaded brakes into a dynamic, adjustable system. The electric motor-driven actuator can vary the braking force continuously and precisely, adapting to different driving conditions, vehicle loads, and regenerative braking requirements. This dynamic control capability enables the same brake system to serve both heavy-duty and light passenger vehicle applications effectively.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent enables continuous adjustment of critical brake parameters such as application force, engagement timing, and release characteristics through electronic control. The electronic control unit modifies these parameters based on sensor feedback and driving conditions, providing the precision and adaptability required for modern passenger vehicle drivetrains while maintaining robust braking performance.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If sensor means are integrated into the multiple disk brake for precise monitoring, then the brake enables target-actual value control for enhanced safety, but the brake system complexity increases

Engineering Contradiction:
Improvedriving safetyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent integrates sensor means into the existing brake structure such that the sensors serve multiple functions: monitoring disk position, detecting braking force, providing feedback for control, and potentially detecting wear or fault conditions. This multi-functionality approach enhances reliability and safety while minimizing the increase in system complexity, as the same sensor infrastructure supports multiple monitoring and control objectives.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 precise monitoring and control of the braking effect, enhancing driving safety and efficiency by providing a regeneratively controlled and efficiently monitored braking system suitable for light passenger vehicles.

Implementation Method 1

magnet detector arrangement for detecting braking force and torque

Methodology Applied
Scientific EffectMagnetic field detection: Magnetic Field

Implementation Method 2

restoring unit, which is configured to prestress at least one sensor disk of the intermediate disks

Methodology Applied
Scientific EffectElastic restoring force: Spring

Implementation Method 3

multiple disk brake with a number of primary disks, which are connected to the rotatable element for conjoint rotation and are rotatable relative to the basic structure, and with a number of intermediate disks, which are each mounted on the basic structure between the primary disks

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS12163564B2Multiple disk brake for a rotatable element
Publication Date: 2024.12.10 CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH
  • US12163564B2 patent drawing
  • US12163564B2 patent drawing

AI summary

An interconnected multiple disk brake for a rotatable element with an integrated sensor which is based on the rotation of a sensor disk.