Online debugging system for electric power-assisted steering control parameter

Abstract

The invention discloses an online debugging system for an electric power-assisted steering control parameter. The online debugging system comprises a personal computer (PC), a serial port to controller area network (CAN) port conversion tool and an electric power-assisted steering controller, wherein the PC is provided with a computer program with a visual debugging interface; the serial port to CAN port conversion tool comprises a serial port communication level conversion module, a serial port to CAN port main control chip and a first CAN bus driver; the electric power-assisted steering controller comprises a second CAN bus driver, an electric power-assisted steering main control chip and a ferroelectric memory; the PC is connected with a nine-needle serial port wire of the serial port to CAN port conversion tool, namely the PC is connected with pins R1IN and T1OUT of the serial port communication level conversion module; and the serial port to CAN port conversion tool is connected with a CAN bus of the electric power-assisted steering controller, namely the pins CANL and CANH of the first CAN bus driver in the serial port to CAN port conversion tool are connected with the pins CANL and CANH of the second CAN bus driver.

Description

technical field [0001] The present invention relates to an online debugging system, more specifically, the present invention relates to an online debugging system for electric power steering control parameters. Background technique [0002] The electric power steering adopts the motor to provide power directly, and the magnitude of the power is controlled by the electronic control unit. The electric power steering adopts the speed-sensitive power-assistance characteristic, which effectively solves the contradiction between "lightness" and "spirit" that has always plagued the traditional steering system. It improves the driving safety of automobiles and has the advantages of energy saving and environmental protection. It has the tendency to gradually replace the hydraulic power steering (HPS) system, and is one of the development directions of future power steering technology. [0003] The electric power steering collects the signal of the torque sensor, determines the targe...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the cumbersome operation of the debugging process in the prior art, which affects the working efficiency of the electric power steering control parameter debugging, and provides a real-time modification of the electric power steering without interrupting the electric power steering control program. Control parameters, real-time recording of electric power steering control parameters, and online debugging system of electric power steering control parameters for intuitive and fast debugging of electric power steering control parameters according to the control effect curve

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