Intelligent accelerator control method

An accelerator control and intelligent technology, which is applied in the field of vehicles, can solve problems that affect the driving experience of the driver, insufficient vehicle power, and inability to adjust, etc., to achieve the effect of solving the feeling of insufficient vehicle power, improving the power of the vehicle, and solving high fuel consumption.

Active Publication Date: 2018-03-06
WEICHAI POWER CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned different pedal torque characteristics represent sporty, economical and general modes, etc. 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. Therefore, when the driver has bad driving habits, the problem of high fuel consumption will occur, and when the vehicle goes uphill, the driver will feel that the vehicle is underpowered, which affects Driver's Driving Experience

Method used

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Embodiment

[0031] like figure 1 and figure 2 Shown, a kind of intelligent throttle control method comprises the following steps:

[0032] (1) Obtain the vehicle position information through the vehicle-mounted GPS system, and send it to the common rail line, which has built-in road spectrum information;

[0033] (2) The common rail line sends the vehicle location information and road map information to the ECU;

[0034] (3) There are three different MAP maps built into the ECU. The ECU determines the slope and slope length of the vehicle location according to the obtained vehicle location information and road spectrum information, and then determines the corresponding MAP map according to the slope. The vehicle weight determines the MAP correction coefficient;

[0035] (4) The ECU obtains the rate of change of the vehicle's throttle, and then judges whether it is necessary to switch the MAP map according to the rate of change of the accelerator. Acquire the torque at a certain degre...

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Abstract

The invention discloses an intelligent accelerator control method. The intelligent accelerator control method comprises the following steps: vehicle position information is obtained and sent to a common rail row; the common rail row sends the vehicle position information and road spectrum information to an ECU; the ECU determines a gradient of the position of a vehicle according to the obtained vehicle position information and road spectrum information, determines a corresponding rotating speed-torque MAP graph according to the gradient, and determines MAP correcting coefficients according tothe weight of the vehicle and the length of the slope; the ECU judges if the MAP graph needs to be switched according to a vehicle accelerator change rate; when the switching is needed, the MAP graphis switched, and the torque is corrected; and a vehicle accelerator is controlled according to the corrected torque. The engine output torque can be adjusted according to the weight of the vehicle andthe road spectrum information to solve the problems of insufficient power in the vehicle upslope and high oil consumption caused by bad driving habits.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to an intelligent throttle control method. 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 driver will choose one of the driving...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D11/10
CPCF02D11/10F02D2200/50F02D2200/702
Inventor 朱江苏吕文芝王卓刘刚王继磊赵甲运
Owner WEICHAI POWER CO LTD
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