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Car cruise control method and system

A technology of cruise control and control method, which is applied in the field of vehicle cruise control and can solve problems such as poor energy saving effect

Inactive Publication Date: 2020-01-07
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a vehicle cruise control method to solve the problem that the current vehicle cruise control cannot predict the road ahead and perform active cruise control, resulting in poor energy-saving effect; the present invention also provides a vehicle cruise control system

Method used

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  • Car cruise control method and system
  • Car cruise control method and system

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Embodiment Construction

[0023] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] An embodiment of a vehicle cruise control method of the present invention

[0025] By predicting the road conditions ahead, the present invention controls the engine to output higher rotational speed and torque in advance or shifts the transmission in advance when it is predicted that the road ahead is an uphill section, so as to accelerate the vehicle to a certain value, and then use the vehicle to slide over the top of the slope; When it is predicted that there is a downhill road ahead, the engine will be controlled to stop fuel injection in advance, and the vehicle will be able to slide safely through the downhill road. The method can be used in passenger cars, cars and other vehicles. The following is an example of the application in passenger cars. The specific implementation process of the method is as follows: figure 1 As show...

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Abstract

The invention relates to a car cruise control method and system and belongs to the technical field of car cruise control. According to the car cruise control method and system, when a car gets into acruising state, and the road information of the position at the set distance ahead of the car is detected; the road environment information ahead of the car is predicted; when the front road is an upslope, the cruising speed of the car is controlled to be increased in advance; and when the front road is a down slope, the cruising speed of the car is controlled to be reduced. The front road information is predicted in advance, the car speed control strategy is optimized, an accelerating-sliding manner is adopted, the car automatically adjusts the running speed of the car in advance according tothe road condition when climbing the slope and going down the slope, the engine work state is adjusted to an economical area, and therefore the aim of saving oil is achieved.

Description

technical field [0001] The invention relates to a vehicle cruise control method and system, belonging to the technical field of vehicle cruise control. Background technique [0002] With the rapid development of the economy and the continuous improvement of people's living standards, the number of automobiles in our country continues to grow, and a large amount of energy is consumed every year. At the same time, automobiles also emit a large amount of air pollutants when running. and main measures to control environmental pollution. In response to energy conservation and emission reduction, various automakers are actively developing methods to optimize fuel consumption. [0003] Due to its special transportation nature, passenger cars, especially those used for passenger transportation and tourism, need to travel on highways for a long time. In order to relieve the driver's driving fatigue, the middle and high-end passenger cars are basically equipped with a vehicle cruise ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/14
CPCB60W30/143B60W30/146B60W2510/0638B60W2510/0657B60W2510/1005B60W2520/10
Inventor 刘亚威李元伟刘积成姜德军郑辉
Owner ZHENGZHOU YUTONG BUS CO LTD
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