Electric Final Drive Brake Fluid Groove for Lighter Manufacturing
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Solution Overview
Problem
The existing brake apparatus for electric final drive systems is costly and material-intensive due to the laborious process of supplying pressurized fluid through drilled supply channels, which increases weight and energy consumption.
Innovation Solution
A brake apparatus with a movement device and a supply device featuring a fluid-conducting unit with a groove-shaped channel and a closure unit, allowing for efficient and cost-effective fluid supply to piston units, reducing material usage and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If drilled supply channels are used to supply pressurized fluid to the ring actuator, then the brake apparatus can be produced with conventional manufacturing methods, but the production process becomes laborious, costly, and material-intensive, increasing weight
Solution Approach 1:
The patent replaces the conventional drilled supply channel system with a flexible hose connection system. The ring actuator is supplied with pressurized fluid through a flexible hose connected to a supply device, eliminating the need for complex drilled channels in the housing. This substitution reduces material usage and weight while simplifying the manufacturing process.
Solution Approach 2:
The patent introduces a flexible hose as an intermediary element between the supply device and the ring actuator. This hose serves as the fluid conduit, replacing the need for integrated drilled channels in the housing structure. The intermediary hose allows for simpler manufacturing of the housing while maintaining effective fluid supply.
2Reliability
If drilled supply channels are used to supply pressurized fluid, then fluid can be delivered to the piston, but the entry point must be partially closed and optimally positioned, requiring cost-intensive production processes
Solution Approach 1:
The patent segments the fluid supply system into separate functional components: a supply device, a flexible hose, and a ring actuator. This segmentation allows each component to be manufactured independently using optimal methods for that specific function, avoiding the need for complex integrated drilling and sealing operations in the housing.
Solution Approach 2:
The patent changes the physical state and form of the fluid conduit from a rigid drilled channel to a flexible hose. This parameter change allows the hose to be easily connected and disconnected, and its entry point can be freely positioned without requiring precise drilling and sealing operations, thereby reducing production costs.
3Reliability
If a material depth is required to produce boreholes for supply channels, then fluid can be supplied to the actuator, but the material depth increases the weight of the brake apparatus
Solution Approach 1:
The patent replaces the rigid drilled channel system requiring significant material depth with a flexible hose system that can be connected externally. This eliminates the need for deep boreholes in the housing, reducing the material required and consequently the weight of the brake apparatus.
4Ease of manufacture
If conventional drilled supply channels are used, then the brake apparatus can be produced, but energy consumption increases due to the material-intensive production process
Solution Approach 1:
The patent replaces the energy-intensive drilled channel manufacturing process with a simpler hose connection system. The flexible hose can be easily connected without requiring heavy material removal processes, thereby reducing the energy consumption associated with production.
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 enables the production of a brake apparatus that is simpler, cost-effective, and material-saving, reducing weight and energy consumption while maintaining effective braking performance.
Implementation Method 1
The fluid-conducting unit (5) has a fluid-conducting channel (6) and an inlet (7), wherein the fluid-conducting channel is formed as a groove and fluidically connects the inlet (7) to the at least one piston unit (14)
Implementation Method 2
These drilled supply channels must be connected to each other and then partially closed, since no pressurized fluid should escape at the entry point of the drill
Implementation Method 3
The brake apparatus (1) has a movement device (2) for moving a connecting device (3) of the brake apparatus (1), with the aid of which the brake apparatus (1) is frictionally connectable to a vehicle wheel or to a transmission device of an electric final drive apparatus
Data Source
AI summary
A brake apparatus for an electric final drive apparatus includesa movement device for moving a connecting device of the brake apparatus, with the aid of which the brake apparatus is frictionally connectable to a vehicle wheel or to a transmission device of an electric final drive apparatus in order to decelerate a vehicle wheel or the transmission device.The movement device includes at least one piston unit with the aid of which a connecting device of the brake apparatus can be moved.a supply device for supplying a pressurizable fluid to the movement device.The supply device has a fluid-conducting unit that conducts a pressurizable fluid to the at least one piston unit such that a pressurizable fluid can be supplied to the at least one piston unit.The fluid-conducting unit has a fluid-conducting channel and an inlet.The fluid-conducting channel is formed as a groove and fluidically connects the inlet to the at least one piston unit.