Intelligent throttle control method based on road spectrum information

Abstract

The invention discloses an intelligent throttle control method based on road spectrum information. The method comprises the following steps of acquiring vehicle position information and sending the information to a common rail line; sending the vehicle position information and road spectrum information of a road to an ECU by the common rail line; determining the slope and slope length of a vehicleposition and then determining a corresponding speed - torque MAP map and MAP correction coefficient by the ECU according to the obtained vehicle position information and the road spectrum informationof the road; determining whether it needs to switch the MAP map by the ECU according to a vehicle throttle change rate, switching the MAP when the switch is needed and correcting the torque; and controlling the vehicle throttle based on the corrected torque. The method can adjust the engine output torque according to the road spectrum information of the road and solve the problem of insufficientpower when a vehicle goes uphill.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to an intelligent throttle control method based on road spectrum information. Background technique [0002] With the improvement of living standards and the strengthening of environmental awareness, electronically controlled vehicles have become more and more popular with the public. In order to adapt to different driving habits of different drivers, existing vehicles will be equipped with several different pedals inside the electronic control unit ECU Torque characteristics, the voltage signal related to the opening of the accelerator pedal is connected to the ECU, and the ECU obtains the target torque of the engine according to the opening of the accelerator pedal and the characteristics of the pedal torque, so as to realize the control of the engine torque. The above-mentioned different pedal torque characteristics represent sporty, economical and general modes, etc., and the dr...

AI Technical Summary

Problems solved by technology

The above-mentioned different pedal torque characteristics represent sporty, economical and general modes, etc., and the driver will choose one of the driving modes according to his driving habits. At this time, the pedal torque characteristics are fixed. The pedal opening is used to obtain the torque, which cannot be adjusted according to the road map information, especially when the vehicle goes uphill, the driver will feel that the vehicle is underpowered, which will affect the driver's driving experience

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