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Sectional-type vehicle constant-speed travelling control method

A driving control, segmented technology, applied in control devices, vehicle components, driver input parameters, etc., can solve problems such as the inability to achieve smooth and stable speed, achieve humanized control, prevent poor riding experience, and improve The effect of accuracy

Active Publication Date: 2018-05-04
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a segmented vehicle constant speed control method to solve the problem that the traditional vehicle constant speed control method cannot achieve smooth and stable speed

Method used

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  • Sectional-type vehicle constant-speed travelling control method
  • Sectional-type vehicle constant-speed travelling control method
  • Sectional-type vehicle constant-speed travelling control method

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the drawings.

[0030] The segmented vehicle constant-speed running control method provided by the present invention uses the accelerator opening as the control quantity for control, so as to realize the constant-speed running of the vehicle. Aiming at the realization of constant speed driving within the entire vehicle speed range, this method proposes to give different parameter settings in different speed ranges to achieve the purpose of fast response, stable and reliable, smooth and comfortable control of the vehicle at constant speed.

[0031] It should be noted that the throttle opening referred to here is the electronic throttle opening, that is, the throttle opening expressed in analog or digital electrical signals that can be received by the controller. This part belongs to the existing technology and is no longer specific. Description.

[0032] The control method is loaded in a hardwa...

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Abstract

The invention relates to a sectional-type vehicle constant-speed travelling control method. A speed lower threshold value is defined, and the speed lower threshold value is smaller than or equal to aset target speed; the actual speed of a vehicle is detected, and when the actual speed of the vehicle is smaller than the speed lower threshold value, the opening of an accelerator is controlled to bethe sum of an initial accelerator opening value and a calculated accelerator opening compensation value; and the accelerator opening compensation value is proportional to a speed error value, and thespeed error value is a difference value between the actual speed of the vehicle and the set target speed. The closer the speed is to the speed lower threshold value, the slower the speed change is, stable operation of the vehicle is guaranteed, the problem that a poor taking feeling is brought to a passenger due to excessive acceleration is solved, a comfortable taking environment is brought to the passenger, and humanized control is achieved.

Description

Technical field [0001] The invention relates to a segmented vehicle driving control method at a constant speed. Background technique [0002] With the development of vehicle system electronics and control technology, the demand for constant speed control of vehicles is increasing. The use of constant-speed vehicle control can reduce unnecessary speed changes, effectively save fuel and reduce emissions, and improve the efficiency of the engine; in addition, it can reduce the driver's control intensity and improve driving comfort and safety. [0003] Based on the above reality, similar devices or methods have been developed in the prior art. For example, the constant-speed cruise control method and device for electric vehicles with the publication number CN104828084A can realize the constant-speed cruise control of the electric vehicle by calculating the required cruise speed and outputting the corrected cruise speed command to the motor controller according to the state of the elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/14
CPCB60W30/143B60W2520/10B60W2540/10B60W2710/0605B60W2720/103
Inventor 李珺李机智
Owner ZHENGZHOU YUTONG BUS CO LTD
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