Intelligent throttle control method based on road spectrum information

A technology of throttle control and road map, applied in the field of vehicles, can solve problems such as affecting the driver's driving experience, inability to adjust, and insufficient vehicle power, so as to solve the problem of insufficient vehicle power and increase power.

Active Publication Date: 2018-03-20
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Intelligent throttle control method based on road spectrum information
  • Intelligent throttle control method based on road spectrum information
  • Intelligent throttle control method based on road spectrum information

Examples

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Comparison scheme
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Embodiment

[0028] Such as figure 1 and figure 2 As shown, an intelligent throttle control method based on road spectrum information includes the following steps:

[0029] (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;

[0030] (2) The common rail line sends the vehicle location information and road map information to the ECU;

[0031] (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 acquired vehicle location information and road spectrum information, and then determines the corresponding MAP map according to the slope. At the same time, the ECU determines the slope according to the slope length. MAP correction factor;

[0032] (4) The ECU obtains the rate of change of the vehicle's throttle, and the ECU judges whether it is necessary to switch the MAP map according to th...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/188
CPCB60W30/1882B60W2540/10B60W2552/15B60W2710/0666
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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