Parking Brake Release Valve for Emergency Deceleration Control
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Solution Overview
Problem
In emergency situations, such as vehicle stalling or abnormal system failures, the negative brake system's parking brake can automatically apply a braking force, leading to sudden stops and dangerous situations, requiring complex and expert-intensive methods to release the braking force.
Innovation Solution
A brake device with a parking releasing valve that switches between states to allow pressure communication between service brake and parking brake lines, enabling easy release of the parking brake's braking force using a simple operation, preventing sudden stops by gradually releasing the brake.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the parking brake is automatically applied in emergency situations, then vehicle safety is improved, but the vehicle may suddenly stop causing dangerous situations for occupants
Solution Approach 1:
The patent applies preliminary anti-action by providing a pressure supply means that can preemptively supply pressure to the brake chamber to counteract the automatic braking force before it fully engages. This allows the system to prepare countermeasures in advance, enabling gradual release of the parking brake rather than sudden engagement, thereby preventing dangerous situations for occupants while maintaining vehicle safety
2Ease of operation
If the braking force is released by disassembling the brake system or making holes, then the parking brake can be released, but the work requires expert knowledge and specific equipment for a long time
Solution Approach 1:
The patent implements self-service by providing a pressure supply means that can autonomously supply pressure to the brake chamber without requiring external disassembly or specialized equipment. The system uses the vehicle's existing hydraulic or pneumatic pressure sources to automatically counteract and release the parking brake force, making the operation simple and accessible to ordinary users rather than requiring expert intervention
Solution Approach 2:
The patent uses an intermediary pressure supply means that acts as a mediator between the vehicle's pressure source and the brake chamber. This intermediary device facilitates the release of parking brake force by supplying counter-pressure through existing system lines, avoiding the need for direct manipulation or disassembly of the brake components
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 easy release of the parking brake's braking force in emergency situations, preventing sudden stops and ensuring safety by allowing gradual vehicle deceleration, thus protecting occupants and vehicles from dangerous situations.
Implementation Method 1
a driver's force of stepping on a pedal is transferred via hydraulic pressure to be converted to a braking force on wheels
Implementation Method 2
a brake device that uses a force generated by an operating force of a driver or an auxiliary power, e.g. a friction force, to convert kinetic energy of vehicles including a car, heavy equipment, etc. to thermal energy in order to perform braking
Data Source
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AI summary
The present invention relates to a device and a method for braking, and a vehicle comprising the same. The present invention has an effect of easily releasing a braking force of a parking brake by switching between a first state, in which first and second lines of a service brake are connected and first and second lines of the parking brake are connected, and a second state, in which the first line of the service brake and the second line of the parking brake are connected.