Integrated Sensor Module for Electronic Brake System
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Solution Overview
Problem
Conventional electronic brake systems have slower response speeds and increased complexity due to separate pedal displacement sensors and motor rotor displacement sensors, leading to higher costs and reduced system safety.
Innovation Solution
An integrated non-contact sensor module is used, combining a pedal displacement sensor and a motor rotor displacement sensor within a single housing, which senses magnetic field variations and induced currents to control the motor's rotation, reducing the number of components and improving system stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate pedal displacement sensors and motor rotor displacement sensors are used, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent combines the pedal displacement sensor and motor rotor displacement sensor into a single integrated sensor module. This module includes a sensor housing, circuit board, pedal sensor module, and motor sensor module all integrated together, reducing the number of separate components while maintaining the measurement precision of both sensors.
Solution Approach 2:
The integrated sensor module serves multiple functions: it measures both pedal displacement and motor rotor displacement simultaneously. The single module performs what previously required two separate sensors, making the system more versatile without compromising measurement accuracy.
2Measurement precision
If separate sensors are used, then measurement precision is improved, but manufacturing cost increases
Solution Approach 1:
By merging two separate sensors into one integrated module, the patent reduces the total number of components that need to be manufactured, assembled, and tested. This integration lowers manufacturing costs while preserving the measurement precision capabilities of both sensors through shared housing, circuit board, and mounting structures.
3Measurement precision
If separate sensors are used, then measurement precision is improved, but response speed decreases
Solution Approach 1:
The integrated sensor module consolidates the signal processing paths of both sensors into a single circuit board and control unit interface. This reduces the time required for signal transmission and processing, improving response speed while maintaining the measurement precision of both sensor functions.
4Measurement precision
If separate sensors are used, then measurement precision is improved, but system safety decreases
Solution Approach 1:
The integrated sensor module reduces the number of connection points and interfaces in the system, thereby reducing potential failure points. By consolidating both sensors into a single robust housing with unified mounting and wiring, the system achieves improved reliability and safety while maintaining the measurement precision of both sensor functions.
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
The integrated sensor module enhances the response speed and safety of the electronic brake system by simplifying the structure, reducing costs, and minimizing space requirements, while maintaining effective braking performance.
Implementation Method 1
a pedal sensor module mounted at one side of the circuit board, in order to sense a magnetic field variation depending on movement of the pedal
Implementation Method 2
a motor sensor module mounted at one side of the circuit board, in order to sense an induced current generated by rotation of a rotor
Data Source
AI summary
Disclosed herein is an electronic brake system using an integrated sensor, which includes a hydraulic block configured to distribute and supply a fluid to a wheel brake, and having a through-hole penetrated at both sides thereof, a sensor module installed at one side of the hydraulic block having the through-hole, for sensing a linear displacement of a brake pedal and a position of a motor, and an electronic control unit installed to a side of the hydraulic block opposite to the sensor module, in order to determine a movement distance of the pedal, based on the linear displacement of the pedal sensed by the sensor module, and control rotation of the motor depending on the linear displacement of the pedal.