Electric control steering system control circuit, control method and storage medium

Abstract

The invention discloses an electronic control steering system control circuit, a control method and a storage medium, and the control circuit comprises a first control circuit, a second control circuit and a double-winding motor; the first control circuit and the second control circuit are both connected with the double-winding motor, and the first control circuit is in communication connection with the second control circuit; the first control circuit can realize the function control of the electric control steering system in a non-fault state and cut off the connection between the double-winding motor and the second control circuit in the fault state; and the second control circuit can realize the function control of the electric control steering system in a non-fault state and cut off connection between the double-winding motor and the first control circuit in the fault state. The driving power is low, the reliability is high, and the function safety requirement of an electric control steering system for intelligent driving above the L3 level can be met.

Description

technical field [0001] The invention relates to the technical field of automobile electronic control, in particular to a control circuit, a control method and a storage medium of an electronically controlled steering system. Background technique [0002] figure 1 It is the schematic diagram of the brushless motor control circuit provided by the prior art. The existing brushless motors used in the steering system of road vehicles mainly use such as figure 1 The control circuit shown, specifically as figure 1 As shown, the control circuit includes a power supply input circuit, a power management IC, a control unit, a motor pre-driver IC, a motor driver module, a phase failure switch driver module, a phase failure protection switch, and a motor position detection module and the motor, wherein the power supply input line is electrically connected to the power management IC, the power management IC is electrically connected to the control unit, the motor pre-driver IC and the p...

AI Technical Summary

Problems solved by technology

[0003] However, the above steering system control circuit has the following deficiencies: first, when any circuit module in the diagram structure fails, the electronic control system will fail, and the function output of the electronic control steering system cannot be realized; second, the above diagram control circuit cannot Meet the safety requirements of automatic steering control functions for intelligent driving vehicles above L3

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