Vehicle Mechatronic Unit Layout for Compact Dual-Motor Packaging
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Solution Overview
Problem
The integration of a mechanical unit with two motors in a mechatronic integrated unit for vehicles leads to an increase in up-down direction dimensions, which cannot be effectively managed by simply stacking the electric circuit unit above the mechanical unit.
Innovation Solution
The mechatronic integrated unit incorporates a housing with a first chamber for the mechanical unit and a second chamber for the electric circuit unit, where a partition wall with a bulging portion above the second motor allows the electric circuit unit to be positioned in excess space created by the motor layout, thereby reducing the overall unit dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the second motor is disposed along with the first motor in the first chamber, then the mechanical unit can accommodate two motors for enhanced functionality, but the up-down direction dimensions of the first chamber increase
Solution Approach 1:
The partition wall is designed with a bulging portion that protrudes into the second chamber, creating excess space in the up-down direction within the first chamber. This allows the two motors to be arranged in the front-rear direction rather than stacking them vertically, thereby maintaining compact up-down dimensions while accommodating dual motor functionality.
Solution Approach 2:
The bulging portion of the partition wall creates a nested spatial arrangement where the electric circuit unit can be positioned in the excess space formed by the bulge, while the motors are nested within the first chamber. This nested configuration optimizes space utilization and reduces overall unit dimensions.
2Device complexity
If the electric circuit unit is disposed in the second chamber above the first chamber, then the electric circuit unit is separated from the mechanical unit, but the up-down direction dimensions of the mechatronic integrated unit increase
Solution Approach 1:
The partition wall's bulging portion creates excess space in the up-down direction that allows the electric circuit unit to be positioned partially within the vertical envelope of the first chamber. This spatial reconfiguration enables unit separation while preventing an increase in overall up-down dimensions.
Solution Approach 2:
The excess space created by the bulging partition wall is merged with the available volume for the electric circuit unit, allowing it to be accommodated without requiring additional up-down direction height. This merging of spatial resources maintains compact overall dimensions.
Data Source
AI summary
A mechatronic integrated unit for a vehicle includes a housing including a first chamber and a second chamber located above the first chamber, a first motor disposed in the first chamber, a second motor disposed along a front-rear direction in the first chamber along with the first motor, at least part of the second motor being located above the first motor, and an electric circuit unit that is disposed in the second chamber and is electrically connected to at least one of the first motor or the second motor. A partition wall between the first chamber and the second chamber includes a bulging portion that bulges toward the second chamber from a portion other than the bulging portion and is located above the second motor. At least part of the electric circuit unit faces the bulging portion in the front-rear direction or in a right-left direction.