Active Axle Damping Layout With Shared Motor Control
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Solution Overview
Problem
Existing damping arrangements for active vehicle chassis require significant construction space for control devices, making them less compact and efficient.
Innovation Solution
The damping arrangement features electric motors for both damping systems housed in a common casing with axially aligned rotational axes, and a common control device with electronic components arranged on circuit boards extending laterally next to the motors, minimizing space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate control devices are used for each damping system, then each electric motor can be independently regulated, but the construction space requirement increases significantly
Solution Approach 1:
The patent combines two separate control devices into a single common control device that regulates both electric motors. The control device features a shared circuit board with electronic construction groups that can control multiple motors, thereby reducing the overall construction space while maintaining independent regulation capability through separate control circuits on the same board.
Solution Approach 2:
The common control device is designed with universal functionality to regulate both electric motors of the damping systems. The circuit board incorporates multiple control channels and electronic construction groups that can independently manage each motor while being housed in a single compact unit, achieving multi-functionality without requiring separate dedicated control devices for each motor.
2Area of stationary object
If a common control device is used for both damping systems, then construction space is reduced, but the complexity of regulating multiple motors increases
Solution Approach 1:
The common control device is segmented into distinct electronic construction groups on the circuit board, with separate control circuits for each electric motor. This segmentation allows independent regulation of each motor while organizing the complexity into manageable, modular sections on the same circuit board, reducing overall device complexity despite handling multiple motors.
Solution Approach 2:
The circuit board acts as an intermediary structure that organizes and manages the complexity of controlling multiple motors. By providing a shared platform with separate control channels and electronic construction groups, the circuit board mediates between the multiple motors and the control system, simplifying the overall architecture while maintaining independent control capability.
Data Source
AI summary
A damping arrangement for an axle of an active chassis of a motor vehicle. A damping system interacts with each wheel of the axle, each damping system has the following: a damper having a double-acting hydraulic cylinder and a piston, a hydraulic pump and an electric motor for driving the hydraulic pump, a hydraulic unit having a hydraulic reservoir and valves. The hydraulic pump and the hydraulic unit of the respective damping system interact with the respective hydraulic cylinder in such a manner that, depending on the conveyance direction of the hydraulic pump, a movement of the piston can be provided in a first or in a second actuation direction. The electric motors of both damping systems are arranged with axially aligned rotational axes in a casing and can be regulated by a common control device which has electronic construction groups which are arranged on at least one circuit board.