Electrohydraulic Brake Power Generation Device with Integrated Pedal Coupling
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Solution Overview
Problem
Existing electrohydraulic brake systems for motor vehicles require complex decoupling mechanisms and additional components, leading to increased production costs and installation space usage.
Innovation Solution
An electrohydraulic brake power generating apparatus that directly couples the brake cylinder device with the brake pedal via a power transmission device, eliminating the need for decoupling components and using a reaction element to transmit pedal power, thereby reducing complexity and space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If decoupling mechanisms and additional components are used in electrohydraulic brake systems, then reliability is improved, but device complexity and installation space increase
Solution Approach 1:
The patent combines the brake pedal actuation mechanism directly with the cylinder-piston device, eliminating the need for separate decoupling mechanisms. The power transmission device integrates the pedal interface and piston actuation into a single coupled system, reducing component count while maintaining functional reliability through direct mechanical linkage.
Solution Approach 2:
The cylinder-piston device serves multiple functions: it provides both the primary braking force through direct pedal actuation and the boosted braking force through hydraulic pressure generation. This multi-functional design eliminates the need for separate decoupling mechanisms, as the same device handles both normal and emergency braking operations.
2Reliability
If decoupling mechanisms and additional components are used in electrohydraulic brake systems, then reliability is improved, but installation space increases
Solution Approach 1:
The patent merges the brake pedal actuation mechanism with the cylinder-piston device into a compact integrated assembly. By eliminating separate decoupling mechanisms and additional components, the overall installation space is reduced while the coupled design maintains sufficient reliability through direct mechanical transmission of braking force.
3Reliability
If decoupling mechanisms and additional components are used in electrohydraulic brake systems, then emergency operation safety is improved, but production cost increases
Solution Approach 1:
The patent combines emergency operation capabilities into the main coupled brake system design, eliminating the need for separate decoupling mechanisms. This integration reduces the number of parts that need to be manufactured and assembled, thereby lowering production costs while maintaining emergency operation safety through the inherent mechanical coupling of the system.
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 allows for a more compact and cost-effective brake system design that operates efficiently in both normal and emergency conditions, providing improved pedal feel and reduced installation space while maintaining effective brake boosting capabilities.
Implementation Method 1
The brake booster device is configured to apply a hydraulic pressure on the brake cylinder device for brake boosting
Implementation Method 2
The power transmission device is adapted to operate the brake cylinder device by means of a relative movement in each operating condition of the brake power generating apparatus
Data Source
AI summary
The present invention relates to an electrohydraulic braking-force generation device and to a method for operating an electrohydraulic braking-force generation device. The electrohydraulic braking-force generation device comprises: a power transmission assembly that is coupled to a brake pedal; a brake cylinder assembly that is to be actuated by the power transmission assembly, the brake cylinder assembly having a first cylinder-piston assembly and said first cylinder-piston assembly being designed to be fluidically coupled to at least one brake circuit; and a brake booster assembly comprising a second cylinder-piston assembly and at least one electromechanical actuator. The brake booster assembly is configured to apply hydraulic pressure to the brake cylinder assembly in order to boost the braking power and the power transmission assembly is configured to actuate the brake cylinder assembly, in each operating mode of the braking-force generation device, by means of a relative movement.