Brake System Dual Pressure Controllers
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Solution Overview
Problem
Existing brake systems face challenges in achieving both good power efficiency and controllability, as they typically require either a first pressure-increase controller for power efficiency or a second pressure-increase controller for controllability, but not both simultaneously.
Innovation Solution
A brake system is configured with both a first pressure-increase controller to control the pump motor for hydraulic pressures and a second pressure-increase controller to control electromagnetic valve devices, allowing for independent control of hydraulic pressures in brake cylinders, thereby achieving both high power efficiency and controllability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If only the first pressure-increase controller is used to control the pump motor, then power efficiency is improved, but controllability deteriorates
Solution Approach 1:
The patent combines both the first pressure-increase controller (for power efficiency) and the second pressure-increase controller (for controllability) into a single brake system. The controller integrates both control strategies, allowing the system to achieve high power efficiency through the first controller while simultaneously achieving good controllability through the second controller's management of electromagnetic valve devices.
2Ease of operation
If only the second pressure-increase controller is used to control electromagnetic valve devices, then controllability is improved, but power efficiency deteriorates
Solution Approach 1:
The patent merges the functions of both controllers in a unified system where the first pressure-increase controller manages pump motor control for power efficiency, while the second pressure-increase controller manages electromagnetic valve devices for controllability. This combination allows both objectives to be achieved simultaneously rather than requiring a trade-off.
3Ease of operation
If both first and second pressure-increase controllers are used, then both power efficiency and controllability are improved, but device complexity increases
Solution Approach 1:
The patent integrates both pressure-increase controllers into a unified control system that manages pump motors and electromagnetic valve devices coordinate. This merging approach allows the system to achieve both power efficiency and controllability improvements while managing complexity through integrated design rather than separate independent systems.
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
This configuration enables the brake system to achieve good power efficiency with minimal power consumption and high controllability, including accurate and responsive hydraulic pressure control in brake cylinders.
Implementation Method 1
a plurality of electromagnetic valve devices provided respectively corresponding to the brake cylinders and each including at least one electromagnetic valve
Implementation Method 2
a first pressure-increase controller configured to control a pump motor to control hydraulic pressures in respective brake cylinders
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The present disclosure is provided to achieve good power efficiency and good controllability in a brake system in which a pump is connected to a plurality of brake cylinders, and electromagnetic valve devices are provided respectively for the brake cylinders. The present brake system includes: a first pressure-increase controller configured to control a pump motor to control hydraulic pressures in the respective brake cylinders; and a second pressure-increase controller configured to control the pump motor based on a greatest one of target hydraulic pressures for the respective brake cylinders and control the electromagnetic valve devices to individually control the hydraulic pressures in the brake cylinders. Control executed by the first pressure-increase controller achieves good power efficiency, and control executed by the second pressure-increase controller achieves good controllability. Since the present brake system includes the first pressure-increase controller and the second pressure-increase controller, it is possible to achieve good power efficiency and good controllability.