Brake and Steering Power Budget Control Under Transient Loads
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Solution Overview
Problem
In electric and internal combustion engine vehicles, the shared power supply for the brake and power steering systems often faces challenges in managing large transient loads, leading to potential power imbalances and exceeding maximum capacity during peak periods.
Innovation Solution
A vehicle control system with a power management module that monitors power draw from both systems, adjusts power allocation to maintain combined power draw below the maximum capacity of the power supply, using sensors and algorithms to manage power distribution based on operational modes and real-time or forecasted power demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single common power supply is used for brake and steering systems, then device complexity is reduced, but power supply reliability deteriorates due to potential overload during transient loads
Solution Approach 1:
The power management module dynamically adjusts power distribution between brake and steering systems based on real-time power draw monitoring. When transient loads are detected, the system adaptively reallocates power to prevent overload while maintaining operational reliability of both systems.
Solution Approach 2:
The system implements continuous feedback monitoring of power draw from both brake and steering modules. The power management module uses this feedback to detect when power consumption approaches budget limits and automatically adjusts power allocation to maintain reliable operation within the single power supply's capacity.
Data Source
AI summary
A vehicle control system includes a brake module operably coupled to a braking system to provide a braking torque request, a steering module operably coupled to a steering system to provide a steering input request, a power supply, and a power management module. The power supply is operably coupled to the brake module and the steering module to provide power to the brake module and the steering module. The power supply has a power budget indicating a maximum power providable to the brake module and the steering module. The power management module is operably coupled to sensors to receive a power draw indication from one of the brake module or the steering module and control power draw of the other of the steering module or the brake module to maintain a combined power draw of the brake module and the steering module below the power budget.