Electromechanical Brake Booster Motor Orientation for Compact Assembly
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Solution Overview
Problem
Existing electro-hydraulic braking systems with electromechanical brake boosters occupy a large amount of space due to their complex structure, making it difficult to fit them into vehicles with limited installation space and specified fastening points.
Innovation Solution
The design of an electromechanical brake booster assembly with a drive arrangement where the electric motor's axis of rotation is perpendicular to the actuating device's longitudinal axis and angled between 60° to 120° relative to the fastening plane, allowing for a compact and space-saving configuration that optimizes the use of available installation space by positioning units such as the gearbox, control unit, and fastening device strategically around the actuating device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a conventional electromechanical brake booster with complex structure is used, then the braking force can be increased, but the installation space required becomes too large
Solution Approach 1:
The patent reorients the electric motor's axis of rotation to be perpendicular to the longitudinal axis of the actuating device, creating a compact three-dimensional arrangement. This spatial reconfiguration allows the drive arrangement to fit within limited installation space while maintaining the necessary braking force generation capability
Solution Approach 2:
The brake cylinder and electromechanical brake booster are integrated into a single assembly with a shared housing. The drive arrangement components (electric motor, transmission, actuating device) are merged and positioned in close proximity, with the control unit and fastening device strategically arranged around the actuating device to minimize overall volume
2Volume of moving object
If the drive arrangement components are positioned to reduce installation space, then the volume is reduced, but the alignment with vehicle fastening points becomes more difficult
Solution Approach 1:
The flange with multiple openings provides multiple fastening options that can accommodate different vehicle mounting configurations. This multi-functional fastening interface allows the compact assembly to be adapted to various vehicle bulkhead arrangements while maintaining the optimized internal component layout
Solution Approach 2:
The control unit and fastening device are positioned asymmetrically around the actuating device rather than in symmetric arrangements. This asymmetric positioning optimizes the use of available installation space and allows flexible alignment with vehicle-specific fastening points while maintaining compact dimensions
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 reduces the overall size of the brake booster assembly, enabling it to fit within the limited space of a vehicle while maintaining effective braking performance by efficiently converting rotational motor movement into translational movement for the brake cylinder, thus improving the utilization of available installation space.
Implementation Method 1
The electromechanical brake booster is powered by electric motors
Implementation Method 2
a transmission for coupling the electric motor to the at least one actuating device
Data Source
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AI summary
The invention relates to an assembly for a vehicle brake system, which comprises at least one brake cylinder (20) and an electromechanical brake booster (10), having a drive arrangement for driving at least one actuating device (18) designed for actuating a brake cylinder (20), wherein the drive arrangement has at least one electric motor (12) and a gear mechanism (16) for coupling the electric motor (12) to the at least one actuating device (18), wherein at least one fastening device (54; 80) is provided for fastening the assembly to a vehicle, said fastening device defining a fastening plane (BE). According to the invention the rotary shaft (A1) of the electric motor (12) is arranged perpendicular to the longitudinal axis (AL) of the actuating device (18) and at an angle of between 60° and 120° to the fastening plane (BE).