Annular Electric Motor with Pendulum Suspension for Vehicle Maneuverability
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Solution Overview
Problem
Existing electrical drive arrangements for motor vehicles lack a compact and volume-efficient design that enhances manoeuvrability, particularly in hybrid and work/military vehicles requiring high power and torque with efficient space utilization.
Innovation Solution
An electrical drive arrangement featuring a compact, annular-housing electric motor with a pendulum suspension system, including slide bearings and a connection unit for medium supply, allowing for transverse output shafts and efficient cooling/lubrication, which minimizes space usage and maximizes mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electrical drive arrangement uses a conventional longitudinal layout with the motor running parallel to the vehicle's longitudinal axis, then the design is simpler to implement, but the vehicle's manoeuvrability and space utilization are reduced
Solution Approach 1:
The pendulum suspension system allows the electrical drive arrangement to dynamically adapt its position and orientation relative to the vehicle body, enabling the motor to pivot between longitudinal and transverse orientations based on operational requirements, thus improving manoeuvrability while maintaining design feasibility
Solution Approach 2:
The invention transitions from a conventional single-dimensional (longitudinal) motor arrangement to a multi-dimensional configuration where the motor can operate in both longitudinal and transverse directions through the pendulum suspension mechanism, enhancing space utilization and vehicle agility
2Volume of moving object
If the electrical drive arrangement uses a compact annular housing with transverse motor orientation, then the volume efficiency and space utilization are improved, but the complexity of suspension and connection systems increases
Solution Approach 1:
The annular housing design nests the motor and transmission components in a compact, concentric arrangement where the drive shaft is positioned centrally within the annular structure, maximizing volume efficiency by utilizing the hollow center space for critical drive components
Solution Approach 2:
The pendulum suspension system serves multiple functions simultaneously: it provides mechanical support for the motor, enables rotational movement for manoeuvrability, and acts as a mounting structure for connection units, thereby reducing the need for separate dedicated components
3Speed
If the motor is pendulum suspended to improve mobility, then the vehicle's manoeuvrability is enhanced, but the stability and ground clearance requirements become more critical
Solution Approach 1:
The pendulum suspension system changes the operational parameters of the motor by allowing it to pivot between different orientations (longitudinal and transverse), enabling the vehicle to adapt its drive configuration based on terrain and operational requirements, thus enhancing mobility while maintaining stability through controlled parameter variation
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 provides improved mobility and stability with a compact, efficient design that maintains ground clearance and allows for efficient cooling and lubrication, suitable for confined spaces and heavy-duty applications.
Implementation Method 1
said bearing configuration comprises slide bearing
Data Source
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Figure 5
AI summary
The present invention relates to an electrical drive arrangement I for driving a motor vehicle (1) comprising an electric motor (20), a drive shaft (26) driven by means of the electric motor (20), a housing (30) in which the electric motor (20) is accommodated, which housing (30) has an envelope surface (31) and a substantially annular cross section wherein the horizontal direction of the envelope surface (31) of said housing and hereby said drive shaft (26) are arranged to run substantially transverse to the longitudinal direction of said vehicle (1), comprising a pendulum suspension (70) for suspension of the electrical drive arrangement I, where the pendulum suspension (70) comprises a fastening configuration (72) fixedly connected to the vehicle and at least one pendulum attachment (74, 76) fixedly connected to the envelope surface (31) of the housing and pivotally journaled relative to said fastening configuration (72) by means of a bearing configuration (80, 82). The invention also relates to a motor vehicle.