Integrated Vehicle Controller Layout for Shielded Motor and Charge Control

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Solution Overview

Problem

Existing vehicle controllers have a large number of parts and poor electric connection reliability due to exposed conductive members, which complicates connections and provides inadequate shielding.

Innovation Solution

A vehicle controller that integrates vehicle control, charge control, and motor control functions into a single control board, featuring a communication module, vehicle control module, charge control module, and motor control module, with electromagnetic shielding and exposed signal plug connectors for reliable signal transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple control assemblies are mounted in separate box bodies, then each control function can be independently implemented, but the number of parts increases and electric connection reliability deteriorates due to exposed conductive members

Engineering Contradiction:
Improveelectric connection reliabilityVSAvoidnumber of parts
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple control assemblies (vehicle control, charge control, and motor control functions) into a single integrated control board mounted within one box body. This consolidation eliminates the need for multiple separate box bodies and reduces the number of conductive members required for inter-assembly connections, thereby improving electric connection reliability while reducing overall device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated control board performs multiple control functions simultaneously - vehicle control, charge control, and motor control - making it a universal control unit that replaces multiple specialized control assemblies. This multi-functional design reduces the number of parts while maintaining all necessary control capabilities, directly addressing the contradiction between reliability and complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If conductive members are exposed outside box bodies for connection, then connection accessibility is improved, but shielding effect deteriorates and electric connection reliability decreases

Engineering Contradiction:
Improveelectric connection reliabilityVSAvoidshielding effect
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent nests all conductive members and control assemblies within the enclosed space of a single box body. The conductive members are positioned inside the box rather than exposed externally, allowing the box structure itself to provide electromagnetic shielding. This nesting approach maintains all necessary electrical connections while protecting them from external interference, simultaneously improving reliability and shielding effect.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of operation

If multiple separate control assemblies are used, then functional independence is maintained, but connection convenience deteriorates due to complex wiring requirements

Engineering Contradiction:
Improveconnection convenienceVSAvoidnumber of conductive members
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

By combining multiple control assemblies into one integrated control board, the patent dramatically reduces the number of conductive members needed for connections. Instead of requiring numerous wires and connectors between separate assemblies, the integrated design uses a single control board with direct connections to external components, greatly simplifying the wiring and improving connection convenience.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20240015915A1Vehicle controller and vehicle with same
Publication Date: 2024.01.11 BYD CO LTD
  • US20240015915A1 patent drawing
  • US20240015915A1 patent drawing
  • US20240015915A1 patent drawing

AI summary

A vehicle controller includes: a box; a control board mounted in the box and including a communication module, a vehicle control module, a charge control module, and a motor control module, and the vehicle control module controlling operations of a vehicle according to signals of the communication module; a driver board mounted in the box, the control board being connected to the driver board, and the motor control module controlling a motor of the vehicle through the driver board; and an on-off switch mounted in the box and connected to the control board, the on-off switch having an input end and an output end, the charge control module controlling on-off of the input end and the output end, the output end being connected to an energy storage member of the vehicle, and the input end being connected to a charging cable of the energy storage member.