Electric seat controller with protection function and control method thereof

Abstract

The invention relates to an electric seat controller with protection function, which solves the deficiencies of the prior art. Detection module, switch module, CAN communication module and current sampling module. The processor module is used to receive and process the signal controlled by the switch, the communication signal, and the diagnosis signal, and the motor position detection module is used to obtain the position information of the motor movement and detect the motor stall; The motor drive module controls the working state of the seat motor; the current sampling module converts the current signal of the motor into a voltage signal; the signal amplification module amplifies the voltage signal of the motor for the processor to collect and processing; the motor hardware protection module automatically controls the motor to stop when the voltage of the collected motor is greater than the protection threshold of the hardware design. The motor hardware protection module and the signal amplification module are two protection circuit schemes, which are complementary in function, and the failure of one protection circuit will not cause the failure of the other protection circuit, reducing the single point failure mode.

Description

technical field [0001] This patent relates to automotive electric seat equipment, in particular to an electric seat controller with protective functions and a control method thereof. Background technique [0002] With the continuous improvement of living standards and automobile intelligence, people's configuration of travel tools is getting higher and higher. In order to meet the comfort of customers, many car manufacturers adopt the automatic seat adjustment scheme with memory function, fully automatic adjustment without manual participation; but because of the fully automatic seat, the functional safety of the seat will be affected There are higher and higher requirements. When the seat motor has a fault such as stalling or overcurrent that affects functional safety, it is necessary to stop the motor in time and report the fault to prevent safety accidents. [0003] Chinese patent application number: 201820931913.9, application date: 2018.06.15, authorized public number ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of slow switching speed and single-point failure in the above-mentioned prior art when the seat motor is blocked and over-current and other faults that affect functional safety, stop the motor running in time and report the fault , providing an electric seat controller with a protection function and a control method thereof

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