Brake Device Energy Efficiency via Conditional Booster Control
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Solution Overview
Problem
Conventional brake devices constantly operate the boost device during brake operations, leading to decreased energy efficiency.
Innovation Solution
A brake device that suppresses the operation of the boost device in a predetermined brake operation region, using a hydraulic pressure unit with a pump and solenoid valves to generate hydraulic pressure independently of the driver's brake operation, thereby improving energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the boost device is constantly operated during brake operations, then the brake assist function is maintained, but the energy efficiency decreases
Solution Approach 1:
The patent applies dynamics by making the boost device operation conditional rather than constant. The control unit dynamically adjusts the operation state of the boost device based on real-time detection of brake operation amount and vehicle speed, transitioning between active and inactive states to optimize energy efficiency while maintaining brake assist function when needed.
Solution Approach 2:
The patent changes the operational parameters of the boost device based on detected conditions. When brake operation amount exceeds a first threshold and vehicle speed is below a second threshold, the boost device is activated; otherwise, it remains inactive. This parameter-based control resolves the contradiction by adapting the system behavior to specific operating conditions.
2Use of energy by moving object
If the boost device operation is suppressed in predetermined brake operation region, then the energy efficiency is improved, but the brake operation force may be insufficient
Solution Approach 1:
The patent implements feedback control by continuously detecting brake operation amount and vehicle speed, then using this information to control the boost device operation. The control unit receives feedback from sensors and adjusts the boost device state accordingly, ensuring brake assist force is provided only when actually needed, thus improving energy efficiency without compromising brake force when required.
Solution Approach 2:
The system performs preliminary assessment of brake operation conditions before activating the boost device. By detecting whether brake operation amount exceeds the first threshold and vehicle speed is below the second threshold beforehand, the system prepares to activate the boost device only when genuinely needed, avoiding unnecessary energy consumption while ensuring brake force availability.
3Reliability
If the boost device is operated frequently, then the brake assist is available, but the vehicle energy consumption increases
Solution Approach 1:
The patent implements periodic assessment of brake operation conditions rather than continuous boost device operation. The control unit periodically evaluates whether brake operation amount and vehicle speed meet the activation criteria, and only activates the boost device during appropriate periods. This periodic action pattern reduces energy consumption while maintaining brake assist availability when needed.
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 solution enhances energy efficiency by reducing the frequency of boost device operation and utilizing existing components like ABS and VDC systems, simplifying the structure and reducing vehicle weight and size.
Implementation Method 1
a hydraulic pressure unit 6 having a pump 7, the hydraulic pressure unit 6 being configured to generate hydraulic pressure independently of a brake operation of the driver
Implementation Method 2
using a hydraulic pressure unit with a pump and solenoid valves to generate hydraulic pressure
Data Source
AI summary
Provided is a brake device that can increase energy efficiency. The present invention is provided with: a master cylinder (5) that generates fluid pressure alongside the operation of a brake by a driver; and a booster device that reduces the force of operation of the brake by the driver by means of an energy source (fluid pressure unit 86)). In a predetermined brake operation region, the operation of the booster device is suppressed.