Pure electric vehicle cruise control system and method based on CAN controller

Abstract

The invention discloses a pure electric vehicle cruise control system and method based on a CAN controller. The pure electric vehicle cruise control system comprises a multifunctional steering wheel, the CAN controller, a whole vehicle controller, a driving assembly, an accelerator pedal and a brake pedal. The multifunctional steering wheel is used for converting key signals of cruise enabling, cruise exiting, cruise+ and cruise- into resistance signals; the CAN controller is used for converting the resistance signal into a CAN signal and generating a cruise command; the vehicle control unit is used for recognizing the cruise command and judging the opening degree of an accelerator pedal and the opening degree of a brake pedal; converting the cruise command into a target signal by combining the opening degree of an accelerator pedal and the opening degree of a brake pedal; the driving assembly is used for identifying the target signal and realizing cruise control of the whole vehicle; according to the cruise control method and device, on the basis that cruise control is achieved based on the CAN controller and the problem of pure electric vehicle type cruise control is solved, the accelerator pedal requirement is rapidly responded in the cruise process, and rapid overtaking and rapid cruise recovery are achieved.

Description

technical field [0001] The disclosure belongs to the technical field of pure electric vehicle control, and in particular relates to a CAN controller-based pure electric vehicle cruise control system and method. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] With the popularity of pure electric vehicles, the proportion of electric vehicles in motor vehicles has been increasing year by year. Compared with traditional power vehicles, pure electric vehicles have great advantages in the field of control, among which easy control, low noise, light weight and low cost are particularly important. Obviously, the popularization of electric vehicles has also led to the rapid improvement of assisted driving and automatic driving technical capabilities. As an important part of automatic driving, constant speed cruise control has different technical r...

AI Technical Summary

Problems solved by technology

[0004] The inventor finds that the existing cruise control device includes a cruise switch and a multimedia switch fixed on the steering wheel of the automobile, and the MCU unit is connected with the vehicle-mounted data communication bus through the CAN communication unit; the main controller is also provided with an external protection signal input terminal. When braking, the cruise control can be forcibly canceled; however, the existing cruise control device cannot judge whether to enter and exit the cruise control mode according to the opening of the brake pedal, and the switching control of the cruise control mode is poor, and the driving safety is low

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