Intelligent accelerator control method based on vehicle weight

Abstract

The invention discloses an intelligent accelerator control method based on the vehicle weight. The method includes the following steps that vehicle position information is obtained and sent to a common rail line; the common rail line sends the vehicle position information and road spectrum information to an ECU; the ECU confirms the slope of the position of a vehicle according to the obtained vehicle position information and the obtained road spectrum information and determines a corresponding rotation speed-torque MAP according to the slope and an MAP correction factor according to the vehicle weight; the ECU judges whether the MAP needs to be switched or not according to the vehicle accelerator change rate, and when the MAP needs to be switched, the MAP is switched, and the torque is corrected; and a vehicle accelerator is controlled according to the corrected torque. By the adoption of the method, the output torque of an engine can be adjusted according to the vehicle weight and theroad spectrum information, when the vehicle is on a flat road or bears a light load, the rotation speed and the torque of the engine are restrained, the engine is made work in the most economical area as much as possible, the oil consumption of the whole vehicle is reduced, and the problem of high oil consumption caused by bad driving habits of a user is solved.

Description

Technical field [0001] The invention relates to the technical field of vehicles, in particular to an intelligent accelerator control method based on vehicle weight. Background technique [0002] With the improvement of living standards and the strengthening of environmental protection awareness, electronically controlled cars have become more and more popular with the public. In order to adapt to the different driving habits of different drivers, existing cars will be equipped with several different pedals in the electronic control unit ECU. Torque characteristics, the voltage signal related to the accelerator pedal opening is connected to the ECU, and the ECU obtains the target engine torque according to the accelerator pedal opening and pedal torque characteristics, thereby realizing the control of the engine torque. The above-mentioned different pedal torque characteristics indicate sports, economy, and general modes. The driver will choose one of the driving modes according t...

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 torque, which cannot be adjusted according to vehicle weight and road map information, so when the driver has bad driving habits, it will cause high fuel consumption.

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