Electronic control device of intelligent hydraulic power steering system

Abstract

The invention discloses an electrical control device of an intelligent hydraulic power steering system. The electrical control device comprises detection sensors, a multi-channel signal input interface circuit, a multi-path analog-to-digital signal logic circuit, an intelligent logic unit circuit, a regulated power supply and a motor driving circuit, wherein the multi-channel signal input interface circuit, the multi-path analog-to-digital signal logic circuit, the intelligent logic unit circuit and the motor driving circuit are connected with the regulated power supply; the detection sensors are connected with the multi-channel signal input interface circuit; the multi-channel signal input interface circuit is connected with the multi-path analog-to-digital signal logic circuit, and the multi-path analog-to-digital signal logic circuit is connected with the intelligent logic unit circuit; the motor driving circuit comprises a first motor driving circuit and a second motor driving circuit; the detection sensors comprise an ignition switch contact, a steering angle sensor, a torque sensor and other sensors. The electrical control device of the intelligent hydraulic power steering system disclosed by the invention has the advantages of meeting different steering requirements at different vehicle speeds, enabling a driver to obtain relatively high assisting power when a vehicle runs at low speed, improving comfort and safety in driving and the like.

Description

technical field [0001] The invention relates to an electric control device of an intelligent hydraulic power steering system, in particular to an electric control device of an intelligent hydraulic power steering system used for automobile steering control. Background technique [0002] At present, the steering system of automobiles generally adopts the traditional electronically controlled hydraulic power steering system, and its structure is as follows: Figure 4 shown. This traditional electronically controlled hydraulic power steering system includes: drive motor 1, electromagnetic clutch 9, steering oil pump 2, controller 10, hydraulic oil tank 5, solenoid valve 11, control main valve 7 and steering power cylinder 8; The oil port is connected with the oil inlet of the steering oil pump, the driving motor is connected with the electromagnetic clutch, and the electromagnetic clutch is connected with the steering oil pump and the controller; the oil outlet of the steering ...

AI Technical Summary

Problems solved by technology

The solenoid valve of the electronically controlled hydraulic power steering system is limited by the electromagnetic characteristics, and the ambient temperature cannot exceed 80°C, while the ambient temperature in the engine room of an automobile often exceeds 80°C, which causes the traditional electronically controlled hydraulic power steering system to be used in practical applications. There are defects such as high failure rate and poor reliability in the process

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