Hybrid power steering system for vehicles uses hydraulic and electrical servo systems, control unit calculating optimum use of these two systems to minimize energy consumption and activating and deactivating them accordingly

摘要

The hybrid power steering system for vehicles uses a hydraulic servo-system and an electrical servo system. A control unit calculates the optimum use of these two systems to minimize energy consumption and activates and deactivates them accordingly. An independent claim is included for a method for controlling a vehicle steering system using the method.