Vehicle powertrain structure

The integrated powertrain structure with internal conductive members and noise filters addresses safety concerns by protecting wiring and preventing interference, ensuring safety and design flexibility during collisions.

JP2025152452APending Publication Date: 2025-10-09MAZDA MOTOR CORP
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Patent Information

Application Number
JP2024054355
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-03-28
Publication Date
2025-10-09

AI Technical Summary

Technical Problem

Conventional vehicle powertrain structures fail to ensure safety during collisions, particularly due to exposed DC wiring that can be damaged by relative displacement between the drive system and the vehicle body or surrounding components.

Method used

The vehicle powertrain structure integrates the converter housing tightly with the drive unit housing, routing conductive members within the drive unit housing to protect wiring, and incorporates noise filters to prevent electromagnetic interference, with a design that minimizes the overall size and ensures high rigidity.

Benefits of technology

This design protects conductive members and wiring from damage during collisions, prevents electromagnetic interference, and maintains a high degree of design freedom while ensuring safety and efficient power supply to auxiliary devices.

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Abstract

To provide a vehicle powertrain structure capable of ensuring safety upon a vehicle collision.SOLUTION: A vehicle includes a drive device including a motor M and a motor housing, a battery, and an inverter for power conversion between the motor M and the battery. An inverter housing of the inverter is tightly joined to the motor housing. There is disposed, on a rear wall part in the motor housing, a DC connector CN1 to which wiring extending from the battery is connected. A DC bus bar LN2 connecting the DC connector CN1 and a circuit part in the inverter is routed inside the motor housing.SELECTED DRAWING: Figure 7
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