Vehicle Braking System with Manual-Automatic Actuator Feedback
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Solution Overview
Problem
Existing vehicle braking systems lack user feedback and control, leading to instability and potential loss of control during extreme braking conditions, as they primarily rely on automatic systems that intervene without clear perception by the driver.
Innovation Solution
A braking system comprising a manual actuator device, an automatic actuator device, and a command panel that allows for direct user control and feedback by generating, controlling, or reducing braking actions, and stabilizing vehicle dynamics, while preventing wheel blocking through simultaneous operation or counteraction of braking devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an automatic braking control system is used to prevent wheel blocking and control vehicle stability, then wheel blocking is prevented and vehicle stability is controlled, but the user does not perceive the intervention and loses the sensation of full control
Solution Approach 1:
The system provides tactile feedback to the user through the manual actuator by generating counteracting braking forces that the user can physically sense. The command panel communicates system interventions to the user, restoring the feedback loop that was lost in fully automatic systems. This allows the user to perceive when the automatic system is intervening while still maintaining control sensation.
Solution Approach 2:
The manual actuator serves as an intermediary between the user and the automatic braking system. It transmits both the user's braking requests and the system's corrective actions, allowing the user to feel the system's interventions through the actuator while the automatic system maintains its wheel blocking prevention function.
2Reliability
If a fully automatic control system with actuators is implemented to translate user input into hydraulic pressure and braking action, then wheel blocking is avoided and stability control is achieved, but the user never has direct control of the braking system
Solution Approach 1:
The system merges the automatic actuator device with the manual actuator device through the command panel integration. Both systems operate through a unified interface, allowing the user to maintain direct control while the automatic system provides supportive interventions. The merging eliminates the separation between manual and automatic control paths.
Solution Approach 2:
Instead of the automatic system completely replacing manual control, the system inverts the approach by having the automatic system work through and augment the manual actuator. The automatic interventions are delivered via the manual actuator path, allowing the user to maintain direct control while receiving automatic assistance.
3Measurement precision
If the automatic actuator device operates independently without user feedback mechanisms, then braking precision and stability control are improved, but the user's confidence and sensation of control are reduced
Solution Approach 1:
The command panel provides information feedback to the user about system interventions and braking actions. This restores the information loop, allowing the user to understand what the automatic system is doing while maintaining precise braking control through the actuator devices.
Data Source
AI summary
A braking system for vehicles comprising —a manual actuator device, operable by means of a lever and/or pedal, operatively connected to at least a first braking device acting on a brake disc or drum, so as to exercise a braking action, —an automatic actuator device, operatively connected to said manual actuator device and/or to said first braking device, —at least one command panel which supervises the functioning of the braking system, said command panel being operatively connected to the automatic actuator device and being programmed so that when the manual actuator device is operated, the panel commands the operation of the automatic actuator device so as to be able to: —increase the overall braking action of the braking system, further operating the first braking device or further braking devices provided in said system and acting on further brake discs or drums, —control the braking action of the braking system so as not to further operate the first braking device or further braking devices of the system, —reduce the overall braking action imposed by means of the manual actuator device, directly countering the thrust action exercised on the lever and/or on the pedal.